diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/__init__.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..1efa53f36cdab7b3354055ef072e95c08c34c5ba --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/__init__.py @@ -0,0 +1,215 @@ +# Copyright (c) 2012-2013 Mitch Garnaat http://garnaat.org/ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. + +import logging +import os +import re +from logging import NullHandler + +__version__ = '1.40.61' + + +# Configure default logger to do nothing +log = logging.getLogger('botocore') +log.addHandler(NullHandler()) + +_INITIALIZERS = [] + +_first_cap_regex = re.compile('(.)([A-Z][a-z]+)') +_end_cap_regex = re.compile('([a-z0-9])([A-Z])') +# The regex below handles the special case where some acronym +# name is pluralized, e.g GatewayARNs, ListWebACLs, SomeCNAMEs. +_special_case_transform = re.compile('[A-Z]{2,}s$') +# Prepopulate the cache with special cases that don't match +# our regular transformation. +_xform_cache = { + ('CreateCachediSCSIVolume', '_'): 'create_cached_iscsi_volume', + ('CreateCachediSCSIVolume', '-'): 'create-cached-iscsi-volume', + ('DescribeCachediSCSIVolumes', '_'): 'describe_cached_iscsi_volumes', + ('DescribeCachediSCSIVolumes', '-'): 'describe-cached-iscsi-volumes', + ('DescribeStorediSCSIVolumes', '_'): 'describe_stored_iscsi_volumes', + ('DescribeStorediSCSIVolumes', '-'): 'describe-stored-iscsi-volumes', + ('CreateStorediSCSIVolume', '_'): 'create_stored_iscsi_volume', + ('CreateStorediSCSIVolume', '-'): 'create-stored-iscsi-volume', + ('ListHITsForQualificationType', '_'): 'list_hits_for_qualification_type', + ('ListHITsForQualificationType', '-'): 'list-hits-for-qualification-type', + ('ExecutePartiQLStatement', '_'): 'execute_partiql_statement', + ('ExecutePartiQLStatement', '-'): 'execute-partiql-statement', + ('ExecutePartiQLTransaction', '_'): 'execute_partiql_transaction', + ('ExecutePartiQLTransaction', '-'): 'execute-partiql-transaction', + ('ExecutePartiQLBatch', '_'): 'execute_partiql_batch', + ('ExecutePartiQLBatch', '-'): 'execute-partiql-batch', + ( + 'AssociateWhatsAppBusinessAccount', + '_', + ): 'associate_whatsapp_business_account', + ( + 'AssociateWhatsAppBusinessAccount', + '-', + ): 'associate-whatsapp-business-account', + ('CreateWhatsAppMessageTemplate', '_'): 'create_whatsapp_message_template', + ('CreateWhatsAppMessageTemplate', '-'): 'create-whatsapp-message-template', + ( + 'CreateWhatsAppMessageTemplateFromLibrary', + '_', + ): 'create_whatsapp_message_template_from_library', + ( + 'CreateWhatsAppMessageTemplateFromLibrary', + '-', + ): 'create-whatsapp-message-template-from-library', + ( + 'CreateWhatsAppMessageTemplateMedia', + '_', + ): 'create_whatsapp_message_template_media', + ( + 'CreateWhatsAppMessageTemplateMedia', + '-', + ): 'create-whatsapp-message-template-media', + ('DeleteWhatsAppMessageMedia', '_'): 'delete_whatsapp_message_media', + ('DeleteWhatsAppMessageMedia', '-'): 'delete-whatsapp-message-media', + ('DeleteWhatsAppMessageTemplate', '_'): 'delete_whatsapp_message_template', + ('DeleteWhatsAppMessageTemplate', '-'): 'delete-whatsapp-message-template', + ( + 'DisassociateWhatsAppBusinessAccount', + '_', + ): 'disassociate_whatsapp_business_account', + ( + 'DisassociateWhatsAppBusinessAccount', + '-', + ): 'disassociate-whatsapp-business-account', + ( + 'GetLinkedWhatsAppBusinessAccount', + '_', + ): 'get_linked_whatsapp_business_account', + ( + 'GetLinkedWhatsAppBusinessAccount', + '-', + ): 'get-linked-whatsapp-business-account', + ( + 'GetLinkedWhatsAppBusinessAccountPhoneNumber', + '_', + ): 'get_linked_whatsapp_business_account_phone_number', + ( + 'GetLinkedWhatsAppBusinessAccountPhoneNumber', + '-', + ): 'get-linked-whatsapp-business-account-phone-number', + ('GetWhatsAppMessageMedia', '_'): 'get_whatsapp_message_media', + ('GetWhatsAppMessageMedia', '-'): 'get-whatsapp-message-media', + ('GetWhatsAppMessageTemplate', '_'): 'get_whatsapp_message_template', + ('GetWhatsAppMessageTemplate', '-'): 'get-whatsapp-message-template', + ( + 'ListLinkedWhatsAppBusinessAccounts', + '_', + ): 'list_linked_whatsapp_business_accounts', + ( + 'ListLinkedWhatsAppBusinessAccounts', + '-', + ): 'list-linked-whatsapp-business-accounts', + ('ListWhatsAppMessageTemplates', '_'): 'list_whatsapp_message_templates', + ('ListWhatsAppMessageTemplates', '-'): 'list-whatsapp-message-templates', + ('ListWhatsAppTemplateLibrary', '_'): 'list_whatsapp_template_library', + ('ListWhatsAppTemplateLibrary', '-'): 'list-whatsapp-template-library', + ('PostWhatsAppMessageMedia', '_'): 'post_whatsapp_message_media', + ('PostWhatsAppMessageMedia', '-'): 'post-whatsapp-message-media', + ( + 'PutWhatsAppBusinessAccountEventDestinations', + '_', + ): 'put_whatsapp_business_account_event_destinations', + ( + 'PutWhatsAppBusinessAccountEventDestinations', + '-', + ): 'put-whatsapp-business-account-event-destinations', + ('SendWhatsAppMessage', '_'): 'send_whatsapp_message', + ('SendWhatsAppMessage', '-'): 'send-whatsapp-message', + ('UpdateWhatsAppMessageTemplate', '_'): 'update_whatsapp_message_template', + ('UpdateWhatsAppMessageTemplate', '-'): 'update-whatsapp-message-template', +} +ScalarTypes = ('string', 'integer', 'boolean', 'timestamp', 'float', 'double') + +BOTOCORE_ROOT = os.path.dirname(os.path.abspath(__file__)) + + +# Used to specify anonymous (unsigned) request signature +class UNSIGNED: + def __copy__(self): + return self + + def __deepcopy__(self, memodict): + return self + + +UNSIGNED = UNSIGNED() + + +def xform_name(name, sep='_', _xform_cache=_xform_cache): + """Convert camel case to a "pythonic" name. + + If the name contains the ``sep`` character, then it is + returned unchanged. + + """ + if sep in name: + # If the sep is in the name, assume that it's already + # transformed and return the string unchanged. + return name + key = (name, sep) + if key not in _xform_cache: + if _special_case_transform.search(name) is not None: + is_special = _special_case_transform.search(name) + matched = is_special.group() + # Replace something like ARNs, ACLs with _arns, _acls. + name = f"{name[: -len(matched)]}{sep}{matched.lower()}" + s1 = _first_cap_regex.sub(r'\1' + sep + r'\2', name) + transformed = _end_cap_regex.sub(r'\1' + sep + r'\2', s1).lower() + _xform_cache[key] = transformed + return _xform_cache[key] + + +def register_initializer(callback): + """Register an initializer function for session creation. + + This initializer function will be invoked whenever a new + `botocore.session.Session` is instantiated. + + :type callback: callable + :param callback: A callable that accepts a single argument + of type `botocore.session.Session`. + + """ + _INITIALIZERS.append(callback) + + +def unregister_initializer(callback): + """Unregister an initializer function. + + :type callback: callable + :param callback: A callable that was previously registered + with `botocore.register_initializer`. + + :raises ValueError: If a callback is provided that is not currently + registered as an initializer. + + """ + _INITIALIZERS.remove(callback) + + +def invoke_initializers(session): + """Invoke all initializers for a session. + + :type session: botocore.session.Session + :param session: The session to initialize. + + """ + for initializer in _INITIALIZERS: + initializer(session) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/args.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/args.py new file mode 100644 index 0000000000000000000000000000000000000000..2a76e879ef007aed47dc36295c8aff3db03e9a9a --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/args.py @@ -0,0 +1,998 @@ +# Copyright 2016 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +"""Internal module to help with normalizing botocore client args. + +This module (and all function/classes within this module) should be +considered internal, and *not* a public API. + +""" + +import copy +import logging +import socket + +import botocore.exceptions +import botocore.parsers +import botocore.serialize +from botocore.config import Config +from botocore.endpoint import EndpointCreator +from botocore.regions import EndpointResolverBuiltins as EPRBuiltins +from botocore.regions import EndpointRulesetResolver +from botocore.signers import RequestSigner +from botocore.useragent import UserAgentString, register_feature_id +from botocore.utils import ( + PRIORITY_ORDERED_SUPPORTED_PROTOCOLS, # noqa: F401 + ensure_boolean, + is_s3_accelerate_url, +) + +logger = logging.getLogger(__name__) + + +VALID_REGIONAL_ENDPOINTS_CONFIG = [ + 'legacy', + 'regional', +] +LEGACY_GLOBAL_STS_REGIONS = [ + 'ap-northeast-1', + 'ap-south-1', + 'ap-southeast-1', + 'ap-southeast-2', + 'aws-global', + 'ca-central-1', + 'eu-central-1', + 'eu-north-1', + 'eu-west-1', + 'eu-west-2', + 'eu-west-3', + 'sa-east-1', + 'us-east-1', + 'us-east-2', + 'us-west-1', + 'us-west-2', +] +# Maximum allowed length of the ``user_agent_appid`` config field. Longer +# values result in a warning-level log message. +USERAGENT_APPID_MAXLEN = 50 + +VALID_REQUEST_CHECKSUM_CALCULATION_CONFIG = ( + "when_supported", + "when_required", +) +VALID_RESPONSE_CHECKSUM_VALIDATION_CONFIG = ( + "when_supported", + "when_required", +) + + +VALID_ACCOUNT_ID_ENDPOINT_MODE_CONFIG = ( + 'preferred', + 'disabled', + 'required', +) + + +class ClientArgsCreator: + def __init__( + self, + event_emitter, + user_agent, + response_parser_factory, + loader, + exceptions_factory, + config_store, + user_agent_creator=None, + ): + self._event_emitter = event_emitter + self._response_parser_factory = response_parser_factory + self._loader = loader + self._exceptions_factory = exceptions_factory + self._config_store = config_store + if user_agent_creator is None: + self._session_ua_creator = UserAgentString.from_environment() + else: + self._session_ua_creator = user_agent_creator + + def get_client_args( + self, + service_model, + region_name, + is_secure, + endpoint_url, + verify, + credentials, + scoped_config, + client_config, + endpoint_bridge, + auth_token=None, + endpoints_ruleset_data=None, + partition_data=None, + ): + final_args = self.compute_client_args( + service_model, + client_config, + endpoint_bridge, + region_name, + endpoint_url, + is_secure, + scoped_config, + ) + + service_name = final_args['service_name'] # noqa + parameter_validation = final_args['parameter_validation'] + endpoint_config = final_args['endpoint_config'] + protocol = final_args['protocol'] + config_kwargs = final_args['config_kwargs'] + s3_config = final_args['s3_config'] + partition = endpoint_config['metadata'].get('partition', None) + socket_options = final_args['socket_options'] + configured_endpoint_url = final_args['configured_endpoint_url'] + signing_region = endpoint_config['signing_region'] + endpoint_region_name = endpoint_config['region_name'] + account_id_endpoint_mode = config_kwargs['account_id_endpoint_mode'] + + event_emitter = copy.copy(self._event_emitter) + signer = RequestSigner( + service_model.service_id, + signing_region, + endpoint_config['signing_name'], + endpoint_config['signature_version'], + credentials, + event_emitter, + auth_token, + ) + + config_kwargs['s3'] = s3_config + new_config = Config(**config_kwargs) + endpoint_creator = EndpointCreator(event_emitter) + + endpoint = endpoint_creator.create_endpoint( + service_model, + region_name=endpoint_region_name, + endpoint_url=endpoint_config['endpoint_url'], + verify=verify, + response_parser_factory=self._response_parser_factory, + max_pool_connections=new_config.max_pool_connections, + proxies=new_config.proxies, + timeout=(new_config.connect_timeout, new_config.read_timeout), + socket_options=socket_options, + client_cert=new_config.client_cert, + proxies_config=new_config.proxies_config, + ) + + # Emit event to allow service-specific or customer customization of serializer kwargs + event_name = f'creating-serializer.{service_name}' + serializer_kwargs = { + 'timestamp_precision': botocore.serialize.TIMESTAMP_PRECISION_DEFAULT + } + event_emitter.emit( + event_name, + protocol_name=protocol, + service_model=service_model, + serializer_kwargs=serializer_kwargs, + ) + + serializer = botocore.serialize.create_serializer( + protocol, + parameter_validation, + timestamp_precision=serializer_kwargs['timestamp_precision'], + ) + response_parser = botocore.parsers.create_parser(protocol) + + ruleset_resolver = self._build_endpoint_resolver( + endpoints_ruleset_data, + partition_data, + client_config, + service_model, + endpoint_region_name, + region_name, + configured_endpoint_url, + endpoint, + is_secure, + endpoint_bridge, + event_emitter, + credentials, + account_id_endpoint_mode, + ) + + # Copy the session's user agent factory and adds client configuration. + client_ua_creator = self._session_ua_creator.with_client_config( + new_config + ) + supplied_ua = client_config.user_agent if client_config else None + new_config._supplied_user_agent = supplied_ua + + return { + 'serializer': serializer, + 'endpoint': endpoint, + 'response_parser': response_parser, + 'event_emitter': event_emitter, + 'request_signer': signer, + 'service_model': service_model, + 'loader': self._loader, + 'client_config': new_config, + 'partition': partition, + 'exceptions_factory': self._exceptions_factory, + 'endpoint_ruleset_resolver': ruleset_resolver, + 'user_agent_creator': client_ua_creator, + } + + def compute_client_args( + self, + service_model, + client_config, + endpoint_bridge, + region_name, + endpoint_url, + is_secure, + scoped_config, + ): + service_name = service_model.endpoint_prefix + protocol = service_model.resolved_protocol + parameter_validation = True + if client_config and not client_config.parameter_validation: + parameter_validation = False + elif scoped_config: + raw_value = scoped_config.get('parameter_validation') + if raw_value is not None: + parameter_validation = ensure_boolean(raw_value) + + s3_config = self.compute_s3_config(client_config) + + configured_endpoint_url = self._compute_configured_endpoint_url( + client_config=client_config, + endpoint_url=endpoint_url, + ) + if configured_endpoint_url is not None: + register_feature_id('ENDPOINT_OVERRIDE') + + endpoint_config = self._compute_endpoint_config( + service_name=service_name, + region_name=region_name, + endpoint_url=configured_endpoint_url, + is_secure=is_secure, + endpoint_bridge=endpoint_bridge, + s3_config=s3_config, + ) + endpoint_variant_tags = endpoint_config['metadata'].get('tags', []) + + # Some third-party libraries expect the final user-agent string in + # ``client.meta.config.user_agent``. To maintain backwards + # compatibility, the preliminary user-agent string (before any Config + # object modifications and without request-specific user-agent + # components) is stored in the new Config object's ``user_agent`` + # property but not used by Botocore itself. + preliminary_ua_string = self._session_ua_creator.with_client_config( + client_config + ).to_string() + # Create a new client config to be passed to the client based + # on the final values. We do not want the user to be able + # to try to modify an existing client with a client config. + config_kwargs = dict( + region_name=endpoint_config['region_name'], + signature_version=endpoint_config['signature_version'], + user_agent=preliminary_ua_string, + ) + if 'dualstack' in endpoint_variant_tags: + config_kwargs.update(use_dualstack_endpoint=True) + if 'fips' in endpoint_variant_tags: + config_kwargs.update(use_fips_endpoint=True) + if client_config is not None: + config_kwargs.update( + connect_timeout=client_config.connect_timeout, + read_timeout=client_config.read_timeout, + max_pool_connections=client_config.max_pool_connections, + proxies=client_config.proxies, + proxies_config=client_config.proxies_config, + retries=client_config.retries, + client_cert=client_config.client_cert, + inject_host_prefix=client_config.inject_host_prefix, + tcp_keepalive=client_config.tcp_keepalive, + user_agent_extra=client_config.user_agent_extra, + user_agent_appid=client_config.user_agent_appid, + request_min_compression_size_bytes=( + client_config.request_min_compression_size_bytes + ), + disable_request_compression=( + client_config.disable_request_compression + ), + client_context_params=client_config.client_context_params, + sigv4a_signing_region_set=( + client_config.sigv4a_signing_region_set + ), + request_checksum_calculation=( + client_config.request_checksum_calculation + ), + response_checksum_validation=( + client_config.response_checksum_validation + ), + account_id_endpoint_mode=client_config.account_id_endpoint_mode, + auth_scheme_preference=client_config.auth_scheme_preference, + ) + self._compute_retry_config(config_kwargs) + self._compute_connect_timeout(config_kwargs) + self._compute_user_agent_appid_config(config_kwargs) + self._compute_request_compression_config(config_kwargs) + self._compute_sigv4a_signing_region_set_config(config_kwargs) + self._compute_checksum_config(config_kwargs) + self._compute_account_id_endpoint_mode_config(config_kwargs) + self._compute_inject_host_prefix(client_config, config_kwargs) + self._compute_auth_scheme_preference_config( + client_config, config_kwargs + ) + self._compute_signature_version_config(client_config, config_kwargs) + s3_config = self.compute_s3_config(client_config) + + is_s3_service = self._is_s3_service(service_name) + + if is_s3_service and 'dualstack' in endpoint_variant_tags: + if s3_config is None: + s3_config = {} + s3_config['use_dualstack_endpoint'] = True + + return { + 'service_name': service_name, + 'parameter_validation': parameter_validation, + 'configured_endpoint_url': configured_endpoint_url, + 'endpoint_config': endpoint_config, + 'protocol': protocol, + 'config_kwargs': config_kwargs, + 's3_config': s3_config, + 'socket_options': self._compute_socket_options( + scoped_config, client_config + ), + } + + def _compute_inject_host_prefix(self, client_config, config_kwargs): + # In the cases that a Config object was not provided, or the private value + # remained UNSET, we should resolve the value from the config store. + if ( + client_config is None + or client_config._inject_host_prefix == 'UNSET' + ): + configured_disable_host_prefix_injection = ( + self._config_store.get_config_variable( + 'disable_host_prefix_injection' + ) + ) + if configured_disable_host_prefix_injection is not None: + config_kwargs[ + 'inject_host_prefix' + ] = not configured_disable_host_prefix_injection + else: + config_kwargs['inject_host_prefix'] = True + + def _compute_configured_endpoint_url(self, client_config, endpoint_url): + if endpoint_url is not None: + return endpoint_url + + if self._ignore_configured_endpoint_urls(client_config): + logger.debug("Ignoring configured endpoint URLs.") + return endpoint_url + + return self._config_store.get_config_variable('endpoint_url') + + def _ignore_configured_endpoint_urls(self, client_config): + if ( + client_config + and client_config.ignore_configured_endpoint_urls is not None + ): + return client_config.ignore_configured_endpoint_urls + + return self._config_store.get_config_variable( + 'ignore_configured_endpoint_urls' + ) + + def compute_s3_config(self, client_config): + s3_configuration = self._config_store.get_config_variable('s3') + + # Next specific client config values takes precedence over + # specific values in the scoped config. + if client_config is not None: + if client_config.s3 is not None: + if s3_configuration is None: + s3_configuration = client_config.s3 + else: + # The current s3_configuration dictionary may be + # from a source that only should be read from so + # we want to be safe and just make a copy of it to modify + # before it actually gets updated. + s3_configuration = s3_configuration.copy() + s3_configuration.update(client_config.s3) + + return s3_configuration + + def _is_s3_service(self, service_name): + """Whether the service is S3 or S3 Control. + + Note that throughout this class, service_name refers to the endpoint + prefix, not the folder name of the service in botocore/data. For + S3 Control, the folder name is 's3control' but the endpoint prefix is + 's3-control'. + """ + return service_name in ['s3', 's3-control'] + + def _compute_endpoint_config( + self, + service_name, + region_name, + endpoint_url, + is_secure, + endpoint_bridge, + s3_config, + ): + resolve_endpoint_kwargs = { + 'service_name': service_name, + 'region_name': region_name, + 'endpoint_url': endpoint_url, + 'is_secure': is_secure, + 'endpoint_bridge': endpoint_bridge, + } + if service_name == 's3': + return self._compute_s3_endpoint_config( + s3_config=s3_config, **resolve_endpoint_kwargs + ) + if service_name == 'sts': + return self._compute_sts_endpoint_config(**resolve_endpoint_kwargs) + return self._resolve_endpoint(**resolve_endpoint_kwargs) + + def _compute_s3_endpoint_config( + self, s3_config, **resolve_endpoint_kwargs + ): + force_s3_global = self._should_force_s3_global( + resolve_endpoint_kwargs['region_name'], s3_config + ) + if force_s3_global: + resolve_endpoint_kwargs['region_name'] = None + endpoint_config = self._resolve_endpoint(**resolve_endpoint_kwargs) + self._set_region_if_custom_s3_endpoint( + endpoint_config, resolve_endpoint_kwargs['endpoint_bridge'] + ) + # For backwards compatibility reasons, we want to make sure the + # client.meta.region_name will remain us-east-1 if we forced the + # endpoint to be the global region. Specifically, if this value + # changes to aws-global, it breaks logic where a user is checking + # for us-east-1 as the global endpoint such as in creating buckets. + if force_s3_global and endpoint_config['region_name'] == 'aws-global': + endpoint_config['region_name'] = 'us-east-1' + return endpoint_config + + def _should_force_s3_global(self, region_name, s3_config): + s3_regional_config = 'legacy' + if s3_config and 'us_east_1_regional_endpoint' in s3_config: + s3_regional_config = s3_config['us_east_1_regional_endpoint'] + self._validate_s3_regional_config(s3_regional_config) + + is_global_region = region_name in ('us-east-1', None) + return s3_regional_config == 'legacy' and is_global_region + + def _validate_s3_regional_config(self, config_val): + if config_val not in VALID_REGIONAL_ENDPOINTS_CONFIG: + raise botocore.exceptions.InvalidS3UsEast1RegionalEndpointConfigError( + s3_us_east_1_regional_endpoint_config=config_val + ) + + def _set_region_if_custom_s3_endpoint( + self, endpoint_config, endpoint_bridge + ): + # If a user is providing a custom URL, the endpoint resolver will + # refuse to infer a signing region. If we want to default to s3v4, + # we have to account for this. + if ( + endpoint_config['signing_region'] is None + and endpoint_config['region_name'] is None + ): + endpoint = endpoint_bridge.resolve('s3') + endpoint_config['signing_region'] = endpoint['signing_region'] + endpoint_config['region_name'] = endpoint['region_name'] + + def _compute_sts_endpoint_config(self, **resolve_endpoint_kwargs): + endpoint_config = self._resolve_endpoint(**resolve_endpoint_kwargs) + if self._should_set_global_sts_endpoint( + resolve_endpoint_kwargs['region_name'], + resolve_endpoint_kwargs['endpoint_url'], + endpoint_config, + ): + self._set_global_sts_endpoint( + endpoint_config, resolve_endpoint_kwargs['is_secure'] + ) + return endpoint_config + + def _should_set_global_sts_endpoint( + self, region_name, endpoint_url, endpoint_config + ): + has_variant_tags = endpoint_config and endpoint_config.get( + 'metadata', {} + ).get('tags') + if endpoint_url or has_variant_tags: + return False + return ( + self._get_sts_regional_endpoints_config() == 'legacy' + and region_name in LEGACY_GLOBAL_STS_REGIONS + ) + + def _get_sts_regional_endpoints_config(self): + sts_regional_endpoints_config = self._config_store.get_config_variable( + 'sts_regional_endpoints' + ) + if not sts_regional_endpoints_config: + sts_regional_endpoints_config = 'regional' + if ( + sts_regional_endpoints_config + not in VALID_REGIONAL_ENDPOINTS_CONFIG + ): + raise botocore.exceptions.InvalidSTSRegionalEndpointsConfigError( + sts_regional_endpoints_config=sts_regional_endpoints_config + ) + return sts_regional_endpoints_config + + def _set_global_sts_endpoint(self, endpoint_config, is_secure): + scheme = 'https' if is_secure else 'http' + endpoint_config['endpoint_url'] = f'{scheme}://sts.amazonaws.com' + endpoint_config['signing_region'] = 'us-east-1' + + def _resolve_endpoint( + self, + service_name, + region_name, + endpoint_url, + is_secure, + endpoint_bridge, + ): + return endpoint_bridge.resolve( + service_name, region_name, endpoint_url, is_secure + ) + + def _compute_socket_options(self, scoped_config, client_config=None): + # This disables Nagle's algorithm and is the default socket options + # in urllib3. + socket_options = [(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)] + client_keepalive = client_config and client_config.tcp_keepalive + scoped_keepalive = scoped_config and self._ensure_boolean( + scoped_config.get("tcp_keepalive", False) + ) + # Enables TCP Keepalive if specified in client config object or shared config file. + if client_keepalive or scoped_keepalive: + socket_options.append((socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)) + return socket_options + + def _compute_retry_config(self, config_kwargs): + self._compute_retry_max_attempts(config_kwargs) + self._compute_retry_mode(config_kwargs) + + def _compute_retry_max_attempts(self, config_kwargs): + # There's a pre-existing max_attempts client config value that actually + # means max *retry* attempts. There's also a `max_attempts` we pull + # from the config store that means *total attempts*, which includes the + # intitial request. We can't change what `max_attempts` means in + # client config so we try to normalize everything to a new + # "total_max_attempts" variable. We ensure that after this, the only + # configuration for "max attempts" is the 'total_max_attempts' key. + # An explicitly provided max_attempts in the client config + # overrides everything. + retries = config_kwargs.get('retries') + if retries is not None: + if 'total_max_attempts' in retries: + retries.pop('max_attempts', None) + return + if 'max_attempts' in retries: + value = retries.pop('max_attempts') + # client config max_attempts means total retries so we + # have to add one for 'total_max_attempts' to account + # for the initial request. + retries['total_max_attempts'] = value + 1 + return + # Otherwise we'll check the config store which checks env vars, + # config files, etc. There is no default value for max_attempts + # so if this returns None and we don't set a default value here. + max_attempts = self._config_store.get_config_variable('max_attempts') + if max_attempts is not None: + if retries is None: + retries = {} + config_kwargs['retries'] = retries + retries['total_max_attempts'] = max_attempts + + def _compute_retry_mode(self, config_kwargs): + retries = config_kwargs.get('retries') + if retries is None: + retries = {} + config_kwargs['retries'] = retries + elif 'mode' in retries: + # If there's a retry mode explicitly set in the client config + # that overrides everything. + return + retry_mode = self._config_store.get_config_variable('retry_mode') + if retry_mode is None: + retry_mode = 'legacy' + retries['mode'] = retry_mode + + def _compute_connect_timeout(self, config_kwargs): + # Checking if connect_timeout is set on the client config. + # If it is not, we check the config_store in case a + # non legacy default mode has been configured. + connect_timeout = config_kwargs.get('connect_timeout') + if connect_timeout is not None: + return + connect_timeout = self._config_store.get_config_variable( + 'connect_timeout' + ) + if connect_timeout: + config_kwargs['connect_timeout'] = connect_timeout + + def _compute_request_compression_config(self, config_kwargs): + min_size = config_kwargs.get('request_min_compression_size_bytes') + disabled = config_kwargs.get('disable_request_compression') + if min_size is None: + min_size = self._config_store.get_config_variable( + 'request_min_compression_size_bytes' + ) + # conversion func is skipped so input validation must be done here + # regardless if the value is coming from the config store or the + # config object + min_size = self._validate_min_compression_size(min_size) + config_kwargs['request_min_compression_size_bytes'] = min_size + + if disabled is None: + disabled = self._config_store.get_config_variable( + 'disable_request_compression' + ) + else: + # if the user provided a value we must check if it's a boolean + disabled = ensure_boolean(disabled) + config_kwargs['disable_request_compression'] = disabled + + def _validate_min_compression_size(self, min_size): + min_allowed_min_size = 1 + max_allowed_min_size = 1048576 + error_msg_base = ( + f'Invalid value "{min_size}" for ' + 'request_min_compression_size_bytes.' + ) + try: + min_size = int(min_size) + except (ValueError, TypeError): + msg = ( + f'{error_msg_base} Value must be an integer. ' + f'Received {type(min_size)} instead.' + ) + raise botocore.exceptions.InvalidConfigError(error_msg=msg) + if not min_allowed_min_size <= min_size <= max_allowed_min_size: + msg = ( + f'{error_msg_base} Value must be between ' + f'{min_allowed_min_size} and {max_allowed_min_size}.' + ) + raise botocore.exceptions.InvalidConfigError(error_msg=msg) + + return min_size + + def _ensure_boolean(self, val): + if isinstance(val, bool): + return val + else: + return val.lower() == 'true' + + def _build_endpoint_resolver( + self, + endpoints_ruleset_data, + partition_data, + client_config, + service_model, + endpoint_region_name, + region_name, + endpoint_url, + endpoint, + is_secure, + endpoint_bridge, + event_emitter, + credentials, + account_id_endpoint_mode, + ): + if endpoints_ruleset_data is None: + return None + + # The legacy EndpointResolver is global to the session, but + # EndpointRulesetResolver is service-specific. Builtins for + # EndpointRulesetResolver must not be derived from the legacy + # endpoint resolver's output, including final_args, s3_config, + # etc. + s3_config_raw = self.compute_s3_config(client_config) or {} + service_name_raw = service_model.endpoint_prefix + # Maintain complex logic for s3 and sts endpoints for backwards + # compatibility. + if service_name_raw in ['s3', 'sts'] or region_name is None: + eprv2_region_name = endpoint_region_name + else: + eprv2_region_name = region_name + resolver_builtins = self.compute_endpoint_resolver_builtin_defaults( + region_name=eprv2_region_name, + service_name=service_name_raw, + s3_config=s3_config_raw, + endpoint_bridge=endpoint_bridge, + client_endpoint_url=endpoint_url, + legacy_endpoint_url=endpoint.host, + credentials=credentials, + account_id_endpoint_mode=account_id_endpoint_mode, + ) + # Client context params for s3 conflict with the available settings + # in the `s3` parameter on the `Config` object. If the same parameter + # is set in both places, the value in the `s3` parameter takes priority. + if client_config is not None: + client_context = client_config.client_context_params or {} + else: + client_context = {} + if self._is_s3_service(service_name_raw): + client_context.update(s3_config_raw) + + sig_version = ( + client_config.signature_version + if client_config is not None + else None + ) + return EndpointRulesetResolver( + endpoint_ruleset_data=endpoints_ruleset_data, + partition_data=partition_data, + service_model=service_model, + builtins=resolver_builtins, + client_context=client_context, + event_emitter=event_emitter, + use_ssl=is_secure, + requested_auth_scheme=sig_version, + ) + + def compute_endpoint_resolver_builtin_defaults( + self, + region_name, + service_name, + s3_config, + endpoint_bridge, + client_endpoint_url, + legacy_endpoint_url, + credentials, + account_id_endpoint_mode, + ): + # EndpointRulesetResolver rulesets may accept an "SDK::Endpoint" as + # input. If the endpoint_url argument of create_client() is set, it + # always takes priority. + if client_endpoint_url: + given_endpoint = client_endpoint_url + # If an endpoints.json data file other than the one bundled within + # the botocore/data directory is used, the output of legacy + # endpoint resolution is provided to EndpointRulesetResolver. + elif not endpoint_bridge.resolver_uses_builtin_data(): + given_endpoint = legacy_endpoint_url + else: + given_endpoint = None + + # The endpoint rulesets differ from legacy botocore behavior in whether + # forcing path style addressing in incompatible situations raises an + # exception or silently ignores the config setting. The + # AWS_S3_FORCE_PATH_STYLE parameter is adjusted both here and for each + # operation so that the ruleset behavior is backwards compatible. + if s3_config.get('use_accelerate_endpoint', False): + force_path_style = False + elif client_endpoint_url is not None and not is_s3_accelerate_url( + client_endpoint_url + ): + force_path_style = s3_config.get('addressing_style') != 'virtual' + else: + force_path_style = s3_config.get('addressing_style') == 'path' + + return { + EPRBuiltins.AWS_REGION: region_name, + EPRBuiltins.AWS_USE_FIPS: ( + # SDK_ENDPOINT cannot be combined with AWS_USE_FIPS + given_endpoint is None + # use legacy resolver's _resolve_endpoint_variant_config_var() + # or default to False if it returns None + and endpoint_bridge._resolve_endpoint_variant_config_var( + 'use_fips_endpoint' + ) + or False + ), + EPRBuiltins.AWS_USE_DUALSTACK: ( + # SDK_ENDPOINT cannot be combined with AWS_USE_DUALSTACK + given_endpoint is None + # use legacy resolver's _resolve_use_dualstack_endpoint() and + # or default to False if it returns None + and endpoint_bridge._resolve_use_dualstack_endpoint( + service_name + ) + or False + ), + EPRBuiltins.AWS_STS_USE_GLOBAL_ENDPOINT: ( + self._should_set_global_sts_endpoint( + region_name=region_name, + endpoint_url=None, + endpoint_config=None, + ) + ), + EPRBuiltins.AWS_S3_USE_GLOBAL_ENDPOINT: ( + self._should_force_s3_global(region_name, s3_config) + ), + EPRBuiltins.AWS_S3_ACCELERATE: s3_config.get( + 'use_accelerate_endpoint', False + ), + EPRBuiltins.AWS_S3_FORCE_PATH_STYLE: force_path_style, + EPRBuiltins.AWS_S3_USE_ARN_REGION: s3_config.get( + 'use_arn_region', True + ), + EPRBuiltins.AWS_S3CONTROL_USE_ARN_REGION: s3_config.get( + 'use_arn_region', False + ), + EPRBuiltins.AWS_S3_DISABLE_MRAP: s3_config.get( + 's3_disable_multiregion_access_points', False + ), + EPRBuiltins.SDK_ENDPOINT: given_endpoint, + EPRBuiltins.ACCOUNT_ID: credentials.get_deferred_property( + 'account_id' + ) + if credentials + else None, + EPRBuiltins.ACCOUNT_ID_ENDPOINT_MODE: account_id_endpoint_mode, + } + + def _compute_user_agent_appid_config(self, config_kwargs): + user_agent_appid = config_kwargs.get('user_agent_appid') + if user_agent_appid is None: + user_agent_appid = self._config_store.get_config_variable( + 'user_agent_appid' + ) + if ( + user_agent_appid is not None + and len(user_agent_appid) > USERAGENT_APPID_MAXLEN + ): + logger.warning( + 'The configured value for user_agent_appid exceeds the ' + 'maximum length of %d characters.', + USERAGENT_APPID_MAXLEN, + ) + config_kwargs['user_agent_appid'] = user_agent_appid + + def _compute_sigv4a_signing_region_set_config(self, config_kwargs): + sigv4a_signing_region_set = config_kwargs.get( + 'sigv4a_signing_region_set' + ) + if sigv4a_signing_region_set is None: + sigv4a_signing_region_set = self._config_store.get_config_variable( + 'sigv4a_signing_region_set' + ) + config_kwargs['sigv4a_signing_region_set'] = sigv4a_signing_region_set + + def _compute_checksum_config(self, config_kwargs): + self._handle_checksum_config( + config_kwargs, + config_key="request_checksum_calculation", + valid_options=VALID_REQUEST_CHECKSUM_CALCULATION_CONFIG, + ) + self._handle_checksum_config( + config_kwargs, + config_key="response_checksum_validation", + valid_options=VALID_RESPONSE_CHECKSUM_VALIDATION_CONFIG, + ) + + def _handle_checksum_config( + self, + config_kwargs, + config_key, + valid_options, + ): + value = config_kwargs.get(config_key) + if value is None: + value = self._config_store.get_config_variable(config_key) + + if isinstance(value, str): + value = value.lower() + + if value not in valid_options: + raise botocore.exceptions.InvalidChecksumConfigError( + config_key=config_key, + config_value=value, + valid_options=valid_options, + ) + self._register_checksum_config_feature_ids(value, config_key) + config_kwargs[config_key] = value + + def _register_checksum_config_feature_ids(self, value, config_key): + checksum_config_feature_id = None + if config_key == "request_checksum_calculation": + checksum_config_feature_id = ( + f"FLEXIBLE_CHECKSUMS_REQ_{value.upper()}" + ) + elif config_key == "response_checksum_validation": + checksum_config_feature_id = ( + f"FLEXIBLE_CHECKSUMS_RES_{value.upper()}" + ) + if checksum_config_feature_id is not None: + register_feature_id(checksum_config_feature_id) + + def _compute_account_id_endpoint_mode_config(self, config_kwargs): + config_key = 'account_id_endpoint_mode' + + # Disable account id based endpoint routing for unsigned requests + # since there are no credentials to resolve. + signature_version = config_kwargs.get('signature_version') + if signature_version is botocore.UNSIGNED: + config_kwargs[config_key] = 'disabled' + return + + account_id_endpoint_mode = config_kwargs.get(config_key) + if account_id_endpoint_mode is None: + account_id_endpoint_mode = self._config_store.get_config_variable( + config_key + ) + + if isinstance(account_id_endpoint_mode, str): + account_id_endpoint_mode = account_id_endpoint_mode.lower() + + if ( + account_id_endpoint_mode + not in VALID_ACCOUNT_ID_ENDPOINT_MODE_CONFIG + ): + raise botocore.exceptions.InvalidConfigError( + error_msg=f"The configured value '{account_id_endpoint_mode}' for '{config_key}' is " + f"invalid. Valid values are: {VALID_ACCOUNT_ID_ENDPOINT_MODE_CONFIG}." + ) + + config_kwargs[config_key] = account_id_endpoint_mode + + def _compute_auth_scheme_preference_config( + self, client_config, config_kwargs + ): + config_key = 'auth_scheme_preference' + set_in_config_object = False + + if client_config and client_config.auth_scheme_preference: + value = client_config.auth_scheme_preference + set_in_config_object = True + else: + value = self._config_store.get_config_variable(config_key) + + if value is None: + config_kwargs[config_key] = None + return + + if not isinstance(value, str): + raise botocore.exceptions.InvalidConfigError( + error_msg=( + f"{config_key} must be a comma-delimited string. " + f"Received {type(value)} instead: {value}." + ) + ) + + value = ','.join( + item.replace(' ', '').replace('\t', '') + for item in value.split(',') + if item.strip() + ) + + if set_in_config_object: + value = ClientConfigString(value) + + config_kwargs[config_key] = value + + def _compute_signature_version_config(self, client_config, config_kwargs): + if client_config and client_config.signature_version: + value = client_config.signature_version + if isinstance(value, str): + config_kwargs['signature_version'] = ClientConfigString(value) + + +class ConfigObjectWrapper: + """Base class to mark values set via in-code Config object.""" + + pass + + +class ClientConfigString(str, ConfigObjectWrapper): + def __new__(cls, value=None): + return super().__new__(cls, value) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/auth.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/auth.py new file mode 100644 index 0000000000000000000000000000000000000000..7754f210074f7da4de46bb414a0f31df1b7b1117 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/auth.py @@ -0,0 +1,1227 @@ +# Copyright (c) 2012-2013 Mitch Garnaat http://garnaat.org/ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import base64 +import calendar +import datetime +import functools +import hmac +import json +import logging +import time +from collections.abc import Mapping +from email.utils import formatdate +from hashlib import sha1, sha256 +from operator import itemgetter + +from botocore.compat import ( + HAS_CRT, + MD5_AVAILABLE, # noqa: F401 + HTTPHeaders, + encodebytes, + ensure_unicode, + get_current_datetime, + parse_qs, + quote, + unquote, + urlsplit, + urlunsplit, +) +from botocore.exceptions import ( + NoAuthTokenError, + NoCredentialsError, + UnknownSignatureVersionError, + UnsupportedSignatureVersionError, +) +from botocore.utils import ( + is_valid_ipv6_endpoint_url, + normalize_url_path, + percent_encode_sequence, +) + +logger = logging.getLogger(__name__) + + +EMPTY_SHA256_HASH = ( + 'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855' +) +# This is the buffer size used when calculating sha256 checksums. +# Experimenting with various buffer sizes showed that this value generally +# gave the best result (in terms of performance). +PAYLOAD_BUFFER = 1024 * 1024 +ISO8601 = '%Y-%m-%dT%H:%M:%SZ' +SIGV4_TIMESTAMP = '%Y%m%dT%H%M%SZ' +SIGNED_HEADERS_BLACKLIST = [ + 'expect', + 'transfer-encoding', + 'user-agent', + 'x-amzn-trace-id', +] +UNSIGNED_PAYLOAD = 'UNSIGNED-PAYLOAD' +STREAMING_UNSIGNED_PAYLOAD_TRAILER = 'STREAMING-UNSIGNED-PAYLOAD-TRAILER' + + +def _host_from_url(url): + # Given URL, derive value for host header. Ensure that value: + # 1) is lowercase + # 2) excludes port, if it was the default port + # 3) excludes userinfo + url_parts = urlsplit(url) + host = url_parts.hostname # urlsplit's hostname is always lowercase + if is_valid_ipv6_endpoint_url(url): + host = f'[{host}]' + default_ports = { + 'http': 80, + 'https': 443, + } + if url_parts.port is not None: + if url_parts.port != default_ports.get(url_parts.scheme): + host = f'{host}:{url_parts.port}' + return host + + +def _get_body_as_dict(request): + # For query services, request.data is form-encoded and is already a + # dict, but for other services such as rest-json it could be a json + # string or bytes. In those cases we attempt to load the data as a + # dict. + data = request.data + if isinstance(data, bytes): + data = json.loads(data.decode('utf-8')) + elif isinstance(data, str): + data = json.loads(data) + return data + + +class BaseSigner: + REQUIRES_REGION = False + REQUIRES_TOKEN = False + + def add_auth(self, request): + raise NotImplementedError("add_auth") + + +class TokenSigner(BaseSigner): + REQUIRES_TOKEN = True + """ + Signers that expect an authorization token to perform the authorization + """ + + def __init__(self, auth_token): + self.auth_token = auth_token + + +class SigV2Auth(BaseSigner): + """ + Sign a request with Signature V2. + """ + + def __init__(self, credentials): + self.credentials = credentials + + def calc_signature(self, request, params): + logger.debug("Calculating signature using v2 auth.") + split = urlsplit(request.url) + path = split.path + if len(path) == 0: + path = '/' + string_to_sign = f"{request.method}\n{split.netloc}\n{path}\n" + lhmac = hmac.new( + self.credentials.secret_key.encode("utf-8"), digestmod=sha256 + ) + pairs = [] + for key in sorted(params): + # Any previous signature should not be a part of this + # one, so we skip that particular key. This prevents + # issues during retries. + if key == 'Signature': + continue + value = str(params[key]) + quoted_key = quote(key.encode('utf-8'), safe='') + quoted_value = quote(value.encode('utf-8'), safe='-_~') + pairs.append(f'{quoted_key}={quoted_value}') + qs = '&'.join(pairs) + string_to_sign += qs + logger.debug('String to sign: %s', string_to_sign) + lhmac.update(string_to_sign.encode('utf-8')) + b64 = base64.b64encode(lhmac.digest()).strip().decode('utf-8') + return (qs, b64) + + def add_auth(self, request): + # The auth handler is the last thing called in the + # preparation phase of a prepared request. + # Because of this we have to parse the query params + # from the request body so we can update them with + # the sigv2 auth params. + if self.credentials is None: + raise NoCredentialsError() + if request.data: + # POST + params = request.data + else: + # GET + params = request.params + params['AWSAccessKeyId'] = self.credentials.access_key + params['SignatureVersion'] = '2' + params['SignatureMethod'] = 'HmacSHA256' + params['Timestamp'] = time.strftime(ISO8601, time.gmtime()) + if self.credentials.token: + params['SecurityToken'] = self.credentials.token + qs, signature = self.calc_signature(request, params) + params['Signature'] = signature + return request + + +class SigV3Auth(BaseSigner): + def __init__(self, credentials): + self.credentials = credentials + + def add_auth(self, request): + if self.credentials is None: + raise NoCredentialsError() + if 'Date' in request.headers: + del request.headers['Date'] + request.headers['Date'] = formatdate(usegmt=True) + if self.credentials.token: + if 'X-Amz-Security-Token' in request.headers: + del request.headers['X-Amz-Security-Token'] + request.headers['X-Amz-Security-Token'] = self.credentials.token + new_hmac = hmac.new( + self.credentials.secret_key.encode('utf-8'), digestmod=sha256 + ) + new_hmac.update(request.headers['Date'].encode('utf-8')) + encoded_signature = encodebytes(new_hmac.digest()).strip() + signature = ( + f"AWS3-HTTPS AWSAccessKeyId={self.credentials.access_key}," + f"Algorithm=HmacSHA256,Signature={encoded_signature.decode('utf-8')}" + ) + if 'X-Amzn-Authorization' in request.headers: + del request.headers['X-Amzn-Authorization'] + request.headers['X-Amzn-Authorization'] = signature + + +class SigV4Auth(BaseSigner): + """ + Sign a request with Signature V4. + """ + + REQUIRES_REGION = True + + def __init__(self, credentials, service_name, region_name): + self.credentials = credentials + # We initialize these value here so the unit tests can have + # valid values. But these will get overriden in ``add_auth`` + # later for real requests. + self._region_name = region_name + self._service_name = service_name + + def _sign(self, key, msg, hex=False): + if hex: + sig = hmac.new(key, msg.encode('utf-8'), sha256).hexdigest() + else: + sig = hmac.new(key, msg.encode('utf-8'), sha256).digest() + return sig + + def headers_to_sign(self, request): + """ + Select the headers from the request that need to be included + in the StringToSign. + """ + header_map = HTTPHeaders() + for name, value in request.headers.items(): + lname = name.lower() + if lname not in SIGNED_HEADERS_BLACKLIST: + header_map[lname] = value + if 'host' not in header_map: + # TODO: We should set the host ourselves, instead of relying on our + # HTTP client to set it for us. + header_map['host'] = _host_from_url(request.url) + return header_map + + def canonical_query_string(self, request): + # The query string can come from two parts. One is the + # params attribute of the request. The other is from the request + # url (in which case we have to re-split the url into its components + # and parse out the query string component). + if request.params: + return self._canonical_query_string_params(request.params) + else: + return self._canonical_query_string_url(urlsplit(request.url)) + + def _canonical_query_string_params(self, params): + # [(key, value), (key2, value2)] + key_val_pairs = [] + if isinstance(params, Mapping): + params = params.items() + for key, value in params: + key_val_pairs.append( + (quote(key, safe='-_.~'), quote(str(value), safe='-_.~')) + ) + sorted_key_vals = [] + # Sort by the URI-encoded key names, and in the case of + # repeated keys, then sort by the value. + for key, value in sorted(key_val_pairs): + sorted_key_vals.append(f'{key}={value}') + canonical_query_string = '&'.join(sorted_key_vals) + return canonical_query_string + + def _canonical_query_string_url(self, parts): + canonical_query_string = '' + if parts.query: + # [(key, value), (key2, value2)] + key_val_pairs = [] + for pair in parts.query.split('&'): + key, _, value = pair.partition('=') + key_val_pairs.append((key, value)) + sorted_key_vals = [] + # Sort by the URI-encoded key names, and in the case of + # repeated keys, then sort by the value. + for key, value in sorted(key_val_pairs): + sorted_key_vals.append(f'{key}={value}') + canonical_query_string = '&'.join(sorted_key_vals) + return canonical_query_string + + def canonical_headers(self, headers_to_sign): + """ + Return the headers that need to be included in the StringToSign + in their canonical form by converting all header keys to lower + case, sorting them in alphabetical order and then joining + them into a string, separated by newlines. + """ + headers = [] + sorted_header_names = sorted(set(headers_to_sign)) + for key in sorted_header_names: + value = ','.join( + self._header_value(v) for v in headers_to_sign.get_all(key) + ) + headers.append(f'{key}:{ensure_unicode(value)}') + return '\n'.join(headers) + + def _header_value(self, value): + # From the sigv4 docs: + # Lowercase(HeaderName) + ':' + Trimall(HeaderValue) + # + # The Trimall function removes excess white space before and after + # values, and converts sequential spaces to a single space. + return ' '.join(value.split()) + + def signed_headers(self, headers_to_sign): + headers = sorted(n.lower().strip() for n in set(headers_to_sign)) + return ';'.join(headers) + + def _is_streaming_checksum_payload(self, request): + checksum_context = request.context.get('checksum', {}) + algorithm = checksum_context.get('request_algorithm') + return isinstance(algorithm, dict) and algorithm.get('in') == 'trailer' + + def payload(self, request): + if self._is_streaming_checksum_payload(request): + return STREAMING_UNSIGNED_PAYLOAD_TRAILER + elif not self._should_sha256_sign_payload(request): + # When payload signing is disabled, we use this static string in + # place of the payload checksum. + return UNSIGNED_PAYLOAD + request_body = request.body + if request_body and hasattr(request_body, 'seek'): + position = request_body.tell() + read_chunksize = functools.partial( + request_body.read, PAYLOAD_BUFFER + ) + checksum = sha256() + for chunk in iter(read_chunksize, b''): + checksum.update(chunk) + hex_checksum = checksum.hexdigest() + request_body.seek(position) + return hex_checksum + elif request_body: + # The request serialization has ensured that + # request.body is a bytes() type. + return sha256(request_body).hexdigest() + else: + return EMPTY_SHA256_HASH + + def _should_sha256_sign_payload(self, request): + # Payloads will always be signed over insecure connections. + if not request.url.startswith('https'): + return True + + # Certain operations may have payload signing disabled by default. + # Since we don't have access to the operation model, we pass in this + # bit of metadata through the request context. + return request.context.get('payload_signing_enabled', True) + + def canonical_request(self, request): + cr = [request.method.upper()] + path = self._normalize_url_path(urlsplit(request.url).path) + cr.append(path) + cr.append(self.canonical_query_string(request)) + headers_to_sign = self.headers_to_sign(request) + cr.append(self.canonical_headers(headers_to_sign) + '\n') + cr.append(self.signed_headers(headers_to_sign)) + if 'X-Amz-Content-SHA256' in request.headers: + body_checksum = request.headers['X-Amz-Content-SHA256'] + else: + body_checksum = self.payload(request) + cr.append(body_checksum) + return '\n'.join(cr) + + def _normalize_url_path(self, path): + normalized_path = quote(normalize_url_path(path), safe='/~') + return normalized_path + + def scope(self, request): + scope = [self.credentials.access_key] + scope.append(request.context['timestamp'][0:8]) + scope.append(self._region_name) + scope.append(self._service_name) + scope.append('aws4_request') + return '/'.join(scope) + + def credential_scope(self, request): + scope = [] + scope.append(request.context['timestamp'][0:8]) + scope.append(self._region_name) + scope.append(self._service_name) + scope.append('aws4_request') + return '/'.join(scope) + + def string_to_sign(self, request, canonical_request): + """ + Return the canonical StringToSign as well as a dict + containing the original version of all headers that + were included in the StringToSign. + """ + sts = ['AWS4-HMAC-SHA256'] + sts.append(request.context['timestamp']) + sts.append(self.credential_scope(request)) + sts.append(sha256(canonical_request.encode('utf-8')).hexdigest()) + return '\n'.join(sts) + + def signature(self, string_to_sign, request): + key = self.credentials.secret_key + k_date = self._sign( + (f"AWS4{key}").encode(), request.context["timestamp"][0:8] + ) + k_region = self._sign(k_date, self._region_name) + k_service = self._sign(k_region, self._service_name) + k_signing = self._sign(k_service, 'aws4_request') + return self._sign(k_signing, string_to_sign, hex=True) + + def add_auth(self, request): + if self.credentials is None: + raise NoCredentialsError() + datetime_now = get_current_datetime() + request.context['timestamp'] = datetime_now.strftime(SIGV4_TIMESTAMP) + # This could be a retry. Make sure the previous + # authorization header is removed first. + self._modify_request_before_signing(request) + canonical_request = self.canonical_request(request) + logger.debug("Calculating signature using v4 auth.") + logger.debug('CanonicalRequest:\n%s', canonical_request) + string_to_sign = self.string_to_sign(request, canonical_request) + logger.debug('StringToSign:\n%s', string_to_sign) + signature = self.signature(string_to_sign, request) + logger.debug('Signature:\n%s', signature) + + self._inject_signature_to_request(request, signature) + + def _inject_signature_to_request(self, request, signature): + auth_str = [f'AWS4-HMAC-SHA256 Credential={self.scope(request)}'] + headers_to_sign = self.headers_to_sign(request) + auth_str.append( + f"SignedHeaders={self.signed_headers(headers_to_sign)}" + ) + auth_str.append(f'Signature={signature}') + request.headers['Authorization'] = ', '.join(auth_str) + return request + + def _modify_request_before_signing(self, request): + if 'Authorization' in request.headers: + del request.headers['Authorization'] + self._set_necessary_date_headers(request) + if self.credentials.token: + if 'X-Amz-Security-Token' in request.headers: + del request.headers['X-Amz-Security-Token'] + request.headers['X-Amz-Security-Token'] = self.credentials.token + + if not request.context.get('payload_signing_enabled', True): + if 'X-Amz-Content-SHA256' in request.headers: + del request.headers['X-Amz-Content-SHA256'] + request.headers['X-Amz-Content-SHA256'] = UNSIGNED_PAYLOAD + + def _set_necessary_date_headers(self, request): + # The spec allows for either the Date _or_ the X-Amz-Date value to be + # used so we check both. If there's a Date header, we use the date + # header. Otherwise we use the X-Amz-Date header. + if 'Date' in request.headers: + del request.headers['Date'] + datetime_timestamp = datetime.datetime.strptime( + request.context['timestamp'], SIGV4_TIMESTAMP + ) + request.headers['Date'] = formatdate( + int(calendar.timegm(datetime_timestamp.timetuple())) + ) + if 'X-Amz-Date' in request.headers: + del request.headers['X-Amz-Date'] + else: + if 'X-Amz-Date' in request.headers: + del request.headers['X-Amz-Date'] + request.headers['X-Amz-Date'] = request.context['timestamp'] + + +class S3SigV4Auth(SigV4Auth): + def _modify_request_before_signing(self, request): + super()._modify_request_before_signing(request) + if 'X-Amz-Content-SHA256' in request.headers: + del request.headers['X-Amz-Content-SHA256'] + + request.headers['X-Amz-Content-SHA256'] = self.payload(request) + + def _should_sha256_sign_payload(self, request): + # S3 allows optional body signing, so to minimize the performance + # impact, we opt to not SHA256 sign the body on streaming uploads, + # provided that we're on https. + client_config = request.context.get('client_config') + s3_config = getattr(client_config, 's3', None) + + # The config could be None if it isn't set, or if the customer sets it + # to None. + if s3_config is None: + s3_config = {} + + # The explicit configuration takes precedence over any implicit + # configuration. + sign_payload = s3_config.get('payload_signing_enabled', None) + if sign_payload is not None: + return sign_payload + + # We require that both a checksum be present and https be enabled + # to implicitly disable body signing. The combination of TLS and + # a checksum is sufficiently secure and durable for us to be + # confident in the request without body signing. + checksum_header = 'Content-MD5' + checksum_context = request.context.get('checksum', {}) + algorithm = checksum_context.get('request_algorithm') + if isinstance(algorithm, dict) and algorithm.get('in') == 'header': + checksum_header = algorithm['name'] + if ( + not request.url.startswith("https") + or checksum_header not in request.headers + ): + return True + + # If the input is streaming we disable body signing by default. + if request.context.get('has_streaming_input', False): + return False + + # If the S3-specific checks had no results, delegate to the generic + # checks. + return super()._should_sha256_sign_payload(request) + + def _normalize_url_path(self, path): + # For S3, we do not normalize the path. + return path + + +class S3ExpressAuth(S3SigV4Auth): + REQUIRES_IDENTITY_CACHE = True + + def __init__( + self, credentials, service_name, region_name, *, identity_cache + ): + super().__init__(credentials, service_name, region_name) + self._identity_cache = identity_cache + + def add_auth(self, request): + super().add_auth(request) + + def _modify_request_before_signing(self, request): + super()._modify_request_before_signing(request) + if 'x-amz-s3session-token' not in request.headers: + request.headers['x-amz-s3session-token'] = self.credentials.token + # S3Express does not support STS' X-Amz-Security-Token + if 'X-Amz-Security-Token' in request.headers: + del request.headers['X-Amz-Security-Token'] + + +class S3ExpressPostAuth(S3ExpressAuth): + REQUIRES_IDENTITY_CACHE = True + + def add_auth(self, request): + datetime_now = get_current_datetime() + request.context['timestamp'] = datetime_now.strftime(SIGV4_TIMESTAMP) + + fields = {} + if request.context.get('s3-presign-post-fields', None) is not None: + fields = request.context['s3-presign-post-fields'] + + policy = {} + conditions = [] + if request.context.get('s3-presign-post-policy', None) is not None: + policy = request.context['s3-presign-post-policy'] + if policy.get('conditions', None) is not None: + conditions = policy['conditions'] + + policy['conditions'] = conditions + + fields['x-amz-algorithm'] = 'AWS4-HMAC-SHA256' + fields['x-amz-credential'] = self.scope(request) + fields['x-amz-date'] = request.context['timestamp'] + + conditions.append({'x-amz-algorithm': 'AWS4-HMAC-SHA256'}) + conditions.append({'x-amz-credential': self.scope(request)}) + conditions.append({'x-amz-date': request.context['timestamp']}) + + if self.credentials.token is not None: + fields['X-Amz-S3session-Token'] = self.credentials.token + conditions.append( + {'X-Amz-S3session-Token': self.credentials.token} + ) + + # Dump the base64 encoded policy into the fields dictionary. + fields['policy'] = base64.b64encode( + json.dumps(policy).encode('utf-8') + ).decode('utf-8') + + fields['x-amz-signature'] = self.signature(fields['policy'], request) + + request.context['s3-presign-post-fields'] = fields + request.context['s3-presign-post-policy'] = policy + + +class S3ExpressQueryAuth(S3ExpressAuth): + DEFAULT_EXPIRES = 300 + REQUIRES_IDENTITY_CACHE = True + + def __init__( + self, + credentials, + service_name, + region_name, + *, + identity_cache, + expires=DEFAULT_EXPIRES, + ): + super().__init__( + credentials, + service_name, + region_name, + identity_cache=identity_cache, + ) + self._expires = expires + + def _modify_request_before_signing(self, request): + # We automatically set this header, so if it's the auto-set value we + # want to get rid of it since it doesn't make sense for presigned urls. + content_type = request.headers.get('content-type') + blocklisted_content_type = ( + 'application/x-www-form-urlencoded; charset=utf-8' + ) + if content_type == blocklisted_content_type: + del request.headers['content-type'] + + # Note that we're not including X-Amz-Signature. + # From the docs: "The Canonical Query String must include all the query + # parameters from the preceding table except for X-Amz-Signature. + signed_headers = self.signed_headers(self.headers_to_sign(request)) + + auth_params = { + 'X-Amz-Algorithm': 'AWS4-HMAC-SHA256', + 'X-Amz-Credential': self.scope(request), + 'X-Amz-Date': request.context['timestamp'], + 'X-Amz-Expires': self._expires, + 'X-Amz-SignedHeaders': signed_headers, + } + if self.credentials.token is not None: + auth_params['X-Amz-S3session-Token'] = self.credentials.token + # Now parse the original query string to a dict, inject our new query + # params, and serialize back to a query string. + url_parts = urlsplit(request.url) + # parse_qs makes each value a list, but in our case we know we won't + # have repeated keys so we know we have single element lists which we + # can convert back to scalar values. + query_string_parts = parse_qs(url_parts.query, keep_blank_values=True) + query_dict = {k: v[0] for k, v in query_string_parts.items()} + + if request.params: + query_dict.update(request.params) + request.params = {} + # The spec is particular about this. It *has* to be: + # https://?& + # You can't mix the two types of params together, i.e just keep doing + # new_query_params.update(op_params) + # new_query_params.update(auth_params) + # percent_encode_sequence(new_query_params) + operation_params = '' + if request.data: + # We also need to move the body params into the query string. To + # do this, we first have to convert it to a dict. + query_dict.update(_get_body_as_dict(request)) + request.data = '' + if query_dict: + operation_params = percent_encode_sequence(query_dict) + '&' + new_query_string = ( + f"{operation_params}{percent_encode_sequence(auth_params)}" + ) + # url_parts is a tuple (and therefore immutable) so we need to create + # a new url_parts with the new query string. + # - + # scheme - 0 + # netloc - 1 + # path - 2 + # query - 3 <-- we're replacing this. + # fragment - 4 + p = url_parts + new_url_parts = (p[0], p[1], p[2], new_query_string, p[4]) + request.url = urlunsplit(new_url_parts) + + def _inject_signature_to_request(self, request, signature): + # Rather than calculating an "Authorization" header, for the query + # param quth, we just append an 'X-Amz-Signature' param to the end + # of the query string. + request.url += f'&X-Amz-Signature={signature}' + + def _normalize_url_path(self, path): + # For S3, we do not normalize the path. + return path + + def payload(self, request): + # From the doc link above: + # "You don't include a payload hash in the Canonical Request, because + # when you create a presigned URL, you don't know anything about the + # payload. Instead, you use a constant string "UNSIGNED-PAYLOAD". + return UNSIGNED_PAYLOAD + + +class SigV4QueryAuth(SigV4Auth): + DEFAULT_EXPIRES = 3600 + + def __init__( + self, credentials, service_name, region_name, expires=DEFAULT_EXPIRES + ): + super().__init__(credentials, service_name, region_name) + self._expires = expires + + def _modify_request_before_signing(self, request): + # We automatically set this header, so if it's the auto-set value we + # want to get rid of it since it doesn't make sense for presigned urls. + content_type = request.headers.get('content-type') + blacklisted_content_type = ( + 'application/x-www-form-urlencoded; charset=utf-8' + ) + if content_type == blacklisted_content_type: + del request.headers['content-type'] + + # Note that we're not including X-Amz-Signature. + # From the docs: "The Canonical Query String must include all the query + # parameters from the preceding table except for X-Amz-Signature. + signed_headers = self.signed_headers(self.headers_to_sign(request)) + + auth_params = { + 'X-Amz-Algorithm': 'AWS4-HMAC-SHA256', + 'X-Amz-Credential': self.scope(request), + 'X-Amz-Date': request.context['timestamp'], + 'X-Amz-Expires': self._expires, + 'X-Amz-SignedHeaders': signed_headers, + } + if self.credentials.token is not None: + auth_params['X-Amz-Security-Token'] = self.credentials.token + # Now parse the original query string to a dict, inject our new query + # params, and serialize back to a query string. + url_parts = urlsplit(request.url) + # parse_qs makes each value a list, but in our case we know we won't + # have repeated keys so we know we have single element lists which we + # can convert back to scalar values. + query_string_parts = parse_qs(url_parts.query, keep_blank_values=True) + query_dict = {k: v[0] for k, v in query_string_parts.items()} + + if request.params: + query_dict.update(request.params) + request.params = {} + # The spec is particular about this. It *has* to be: + # https://?& + # You can't mix the two types of params together, i.e just keep doing + # new_query_params.update(op_params) + # new_query_params.update(auth_params) + # percent_encode_sequence(new_query_params) + operation_params = '' + if request.data: + # We also need to move the body params into the query string. To + # do this, we first have to convert it to a dict. + query_dict.update(_get_body_as_dict(request)) + request.data = '' + if query_dict: + operation_params = percent_encode_sequence(query_dict) + '&' + new_query_string = ( + f"{operation_params}{percent_encode_sequence(auth_params)}" + ) + # url_parts is a tuple (and therefore immutable) so we need to create + # a new url_parts with the new query string. + # - + # scheme - 0 + # netloc - 1 + # path - 2 + # query - 3 <-- we're replacing this. + # fragment - 4 + p = url_parts + new_url_parts = (p[0], p[1], p[2], new_query_string, p[4]) + request.url = urlunsplit(new_url_parts) + + def _inject_signature_to_request(self, request, signature): + # Rather than calculating an "Authorization" header, for the query + # param quth, we just append an 'X-Amz-Signature' param to the end + # of the query string. + request.url += f'&X-Amz-Signature={signature}' + + +class S3SigV4QueryAuth(SigV4QueryAuth): + """S3 SigV4 auth using query parameters. + + This signer will sign a request using query parameters and signature + version 4, i.e a "presigned url" signer. + + Based off of: + + http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-query-string-auth.html + + """ + + def _normalize_url_path(self, path): + # For S3, we do not normalize the path. + return path + + def payload(self, request): + # From the doc link above: + # "You don't include a payload hash in the Canonical Request, because + # when you create a presigned URL, you don't know anything about the + # payload. Instead, you use a constant string "UNSIGNED-PAYLOAD". + return UNSIGNED_PAYLOAD + + +class S3SigV4PostAuth(SigV4Auth): + """ + Presigns a s3 post + + Implementation doc here: + http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-UsingHTTPPOST.html + """ + + def add_auth(self, request): + datetime_now = get_current_datetime() + request.context['timestamp'] = datetime_now.strftime(SIGV4_TIMESTAMP) + + fields = {} + if request.context.get('s3-presign-post-fields', None) is not None: + fields = request.context['s3-presign-post-fields'] + + policy = {} + conditions = [] + if request.context.get('s3-presign-post-policy', None) is not None: + policy = request.context['s3-presign-post-policy'] + if policy.get('conditions', None) is not None: + conditions = policy['conditions'] + + policy['conditions'] = conditions + + fields['x-amz-algorithm'] = 'AWS4-HMAC-SHA256' + fields['x-amz-credential'] = self.scope(request) + fields['x-amz-date'] = request.context['timestamp'] + + conditions.append({'x-amz-algorithm': 'AWS4-HMAC-SHA256'}) + conditions.append({'x-amz-credential': self.scope(request)}) + conditions.append({'x-amz-date': request.context['timestamp']}) + + if self.credentials.token is not None: + fields['x-amz-security-token'] = self.credentials.token + conditions.append({'x-amz-security-token': self.credentials.token}) + + # Dump the base64 encoded policy into the fields dictionary. + fields['policy'] = base64.b64encode( + json.dumps(policy).encode('utf-8') + ).decode('utf-8') + + fields['x-amz-signature'] = self.signature(fields['policy'], request) + + request.context['s3-presign-post-fields'] = fields + request.context['s3-presign-post-policy'] = policy + + +class HmacV1Auth(BaseSigner): + # List of Query String Arguments of Interest + QSAOfInterest = [ + 'accelerate', + 'acl', + 'cors', + 'defaultObjectAcl', + 'location', + 'logging', + 'partNumber', + 'policy', + 'requestPayment', + 'torrent', + 'versioning', + 'versionId', + 'versions', + 'website', + 'uploads', + 'uploadId', + 'response-content-type', + 'response-content-language', + 'response-expires', + 'response-cache-control', + 'response-content-disposition', + 'response-content-encoding', + 'delete', + 'lifecycle', + 'tagging', + 'restore', + 'storageClass', + 'notification', + 'replication', + 'requestPayment', + 'analytics', + 'metrics', + 'inventory', + 'select', + 'select-type', + 'object-lock', + ] + + def __init__(self, credentials, service_name=None, region_name=None): + self.credentials = credentials + + def sign_string(self, string_to_sign): + new_hmac = hmac.new( + self.credentials.secret_key.encode('utf-8'), digestmod=sha1 + ) + new_hmac.update(string_to_sign.encode('utf-8')) + return encodebytes(new_hmac.digest()).strip().decode('utf-8') + + def canonical_standard_headers(self, headers): + interesting_headers = ['content-md5', 'content-type', 'date'] + hoi = [] + if 'Date' in headers: + del headers['Date'] + headers['Date'] = self._get_date() + for ih in interesting_headers: + found = False + for key in headers: + lk = key.lower() + if headers[key] is not None and lk == ih: + hoi.append(headers[key].strip()) + found = True + if not found: + hoi.append('') + return '\n'.join(hoi) + + def canonical_custom_headers(self, headers): + hoi = [] + custom_headers = {} + for key in headers: + lk = key.lower() + if headers[key] is not None: + if lk.startswith('x-amz-'): + custom_headers[lk] = ','.join( + v.strip() for v in headers.get_all(key) + ) + sorted_header_keys = sorted(custom_headers.keys()) + for key in sorted_header_keys: + hoi.append(f"{key}:{custom_headers[key]}") + return '\n'.join(hoi) + + def unquote_v(self, nv): + """ + TODO: Do we need this? + """ + if len(nv) == 1: + return nv + else: + return (nv[0], unquote(nv[1])) + + def canonical_resource(self, split, auth_path=None): + # don't include anything after the first ? in the resource... + # unless it is one of the QSA of interest, defined above + # NOTE: + # The path in the canonical resource should always be the + # full path including the bucket name, even for virtual-hosting + # style addressing. The ``auth_path`` keeps track of the full + # path for the canonical resource and would be passed in if + # the client was using virtual-hosting style. + if auth_path is not None: + buf = auth_path + else: + buf = split.path + if split.query: + qsa = split.query.split('&') + qsa = [a.split('=', 1) for a in qsa] + qsa = [ + self.unquote_v(a) for a in qsa if a[0] in self.QSAOfInterest + ] + if len(qsa) > 0: + qsa.sort(key=itemgetter(0)) + qsa = ['='.join(a) for a in qsa] + buf += '?' + buf += '&'.join(qsa) + return buf + + def canonical_string( + self, method, split, headers, expires=None, auth_path=None + ): + cs = method.upper() + '\n' + cs += self.canonical_standard_headers(headers) + '\n' + custom_headers = self.canonical_custom_headers(headers) + if custom_headers: + cs += custom_headers + '\n' + cs += self.canonical_resource(split, auth_path=auth_path) + return cs + + def get_signature( + self, method, split, headers, expires=None, auth_path=None + ): + if self.credentials.token: + del headers['x-amz-security-token'] + headers['x-amz-security-token'] = self.credentials.token + string_to_sign = self.canonical_string( + method, split, headers, auth_path=auth_path + ) + logger.debug('StringToSign:\n%s', string_to_sign) + return self.sign_string(string_to_sign) + + def add_auth(self, request): + if self.credentials is None: + raise NoCredentialsError + logger.debug("Calculating signature using hmacv1 auth.") + split = urlsplit(request.url) + logger.debug("HTTP request method: %s", request.method) + signature = self.get_signature( + request.method, split, request.headers, auth_path=request.auth_path + ) + self._inject_signature(request, signature) + + def _get_date(self): + return formatdate(usegmt=True) + + def _inject_signature(self, request, signature): + if 'Authorization' in request.headers: + # We have to do this because request.headers is not + # normal dictionary. It has the (unintuitive) behavior + # of aggregating repeated setattr calls for the same + # key value. For example: + # headers['foo'] = 'a'; headers['foo'] = 'b' + # list(headers) will print ['foo', 'foo']. + del request.headers['Authorization'] + + auth_header = f"AWS {self.credentials.access_key}:{signature}" + request.headers['Authorization'] = auth_header + + +class HmacV1QueryAuth(HmacV1Auth): + """ + Generates a presigned request for s3. + + Spec from this document: + + http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html + #RESTAuthenticationQueryStringAuth + + """ + + DEFAULT_EXPIRES = 3600 + + def __init__(self, credentials, expires=DEFAULT_EXPIRES): + self.credentials = credentials + self._expires = expires + + def _get_date(self): + return str(int(time.time() + int(self._expires))) + + def _inject_signature(self, request, signature): + query_dict = {} + query_dict['AWSAccessKeyId'] = self.credentials.access_key + query_dict['Signature'] = signature + + for header_key in request.headers: + lk = header_key.lower() + # For query string requests, Expires is used instead of the + # Date header. + if header_key == 'Date': + query_dict['Expires'] = request.headers['Date'] + # We only want to include relevant headers in the query string. + # These can be anything that starts with x-amz, is Content-MD5, + # or is Content-Type. + elif lk.startswith('x-amz-') or lk in ( + 'content-md5', + 'content-type', + ): + query_dict[lk] = request.headers[lk] + # Combine all of the identified headers into an encoded + # query string + new_query_string = percent_encode_sequence(query_dict) + + # Create a new url with the presigned url. + p = urlsplit(request.url) + if p[3]: + # If there was a pre-existing query string, we should + # add that back before injecting the new query string. + new_query_string = f'{p[3]}&{new_query_string}' + new_url_parts = (p[0], p[1], p[2], new_query_string, p[4]) + request.url = urlunsplit(new_url_parts) + + +class HmacV1PostAuth(HmacV1Auth): + """ + Generates a presigned post for s3. + + Spec from this document: + + http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingHTTPPOST.html + """ + + def add_auth(self, request): + fields = {} + if request.context.get('s3-presign-post-fields', None) is not None: + fields = request.context['s3-presign-post-fields'] + + policy = {} + conditions = [] + if request.context.get('s3-presign-post-policy', None) is not None: + policy = request.context['s3-presign-post-policy'] + if policy.get('conditions', None) is not None: + conditions = policy['conditions'] + + policy['conditions'] = conditions + + fields['AWSAccessKeyId'] = self.credentials.access_key + + if self.credentials.token is not None: + fields['x-amz-security-token'] = self.credentials.token + conditions.append({'x-amz-security-token': self.credentials.token}) + + # Dump the base64 encoded policy into the fields dictionary. + fields['policy'] = base64.b64encode( + json.dumps(policy).encode('utf-8') + ).decode('utf-8') + + fields['signature'] = self.sign_string(fields['policy']) + + request.context['s3-presign-post-fields'] = fields + request.context['s3-presign-post-policy'] = policy + + +class BearerAuth(TokenSigner): + """ + Performs bearer token authorization by placing the bearer token in the + Authorization header as specified by Section 2.1 of RFC 6750. + + https://datatracker.ietf.org/doc/html/rfc6750#section-2.1 + """ + + def add_auth(self, request): + if self.auth_token is None: + raise NoAuthTokenError() + + auth_header = f'Bearer {self.auth_token.token}' + if 'Authorization' in request.headers: + del request.headers['Authorization'] + request.headers['Authorization'] = auth_header + + +def resolve_auth_type(auth_trait): + for auth_type in auth_trait: + if auth_type == 'smithy.api#noAuth': + return AUTH_TYPE_TO_SIGNATURE_VERSION[auth_type] + elif auth_type in AUTH_TYPE_TO_SIGNATURE_VERSION: + signature_version = AUTH_TYPE_TO_SIGNATURE_VERSION[auth_type] + if signature_version in AUTH_TYPE_MAPS: + return signature_version + else: + raise UnknownSignatureVersionError(signature_version=auth_type) + raise UnsupportedSignatureVersionError(signature_version=auth_trait) + + +def resolve_auth_scheme_preference(preference_list, auth_options): + service_supported = [scheme.split('#')[-1] for scheme in auth_options] + + unsupported = [ + scheme + for scheme in preference_list + if scheme not in AUTH_PREF_TO_SIGNATURE_VERSION + ] + if unsupported: + logger.debug( + "Unsupported auth schemes in preference list: %r", unsupported + ) + + combined = preference_list + service_supported + prioritized_schemes = [ + scheme + for scheme in dict.fromkeys(combined) + if scheme in service_supported + ] + + for scheme in prioritized_schemes: + if scheme == 'noAuth': + return AUTH_PREF_TO_SIGNATURE_VERSION[scheme] + sig_version = AUTH_PREF_TO_SIGNATURE_VERSION.get(scheme) + if sig_version in AUTH_TYPE_MAPS: + return sig_version + + raise UnsupportedSignatureVersionError( + signature_version=', '.join(sorted(service_supported)) + ) + + +AUTH_TYPE_MAPS = { + 'v2': SigV2Auth, + 'v3': SigV3Auth, + 'v3https': SigV3Auth, + 's3': HmacV1Auth, + 's3-query': HmacV1QueryAuth, + 's3-presign-post': HmacV1PostAuth, + 's3v4-presign-post': S3SigV4PostAuth, + 'v4-s3express': S3ExpressAuth, + 'v4-s3express-query': S3ExpressQueryAuth, + 'v4-s3express-presign-post': S3ExpressPostAuth, + 'bearer': BearerAuth, +} + +# Define v4 signers depending on if CRT is present +if HAS_CRT: + from botocore.crt.auth import CRT_AUTH_TYPE_MAPS + + AUTH_TYPE_MAPS.update(CRT_AUTH_TYPE_MAPS) +else: + AUTH_TYPE_MAPS.update( + { + 'v4': SigV4Auth, + 'v4-query': SigV4QueryAuth, + 's3v4': S3SigV4Auth, + 's3v4-query': S3SigV4QueryAuth, + } + ) + +AUTH_TYPE_TO_SIGNATURE_VERSION = { + 'aws.auth#sigv4': 'v4', + 'aws.auth#sigv4a': 'v4a', + 'smithy.api#httpBearerAuth': 'bearer', + 'smithy.api#noAuth': 'none', +} + +# Mapping used specifically for resolving user-configured auth scheme preferences. +# This is similar to AUTH_TYPE_TO_SIGNATURE_VERSION, but uses simplified keys by +# stripping the auth trait prefixes ('smithy.api#httpBearerAuth' → 'httpBearerAuth'). +# These simplified keys match what customers are expected to provide in configuration. +AUTH_PREF_TO_SIGNATURE_VERSION = { + auth_scheme.split('#')[-1]: sig_version + for auth_scheme, sig_version in AUTH_TYPE_TO_SIGNATURE_VERSION.items() +} diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/awsrequest.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/awsrequest.py new file mode 100644 index 0000000000000000000000000000000000000000..06681395a223e950bdce3c010caca2b644fe3fd1 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/awsrequest.py @@ -0,0 +1,635 @@ +# Copyright (c) 2012-2013 Mitch Garnaat http://garnaat.org/ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import functools +import logging +from collections.abc import Mapping + +import urllib3.util +from urllib3.connection import HTTPConnection, VerifiedHTTPSConnection +from urllib3.connectionpool import HTTPConnectionPool, HTTPSConnectionPool + +import botocore.utils +from botocore.compat import ( + HTTPHeaders, + HTTPResponse, + MutableMapping, + urlencode, + urlparse, + urlsplit, + urlunsplit, +) +from botocore.exceptions import UnseekableStreamError + +logger = logging.getLogger(__name__) + + +class AWSHTTPResponse(HTTPResponse): + # The *args, **kwargs is used because the args are slightly + # different in py2.6 than in py2.7/py3. + def __init__(self, *args, **kwargs): + self._status_tuple = kwargs.pop('status_tuple') + HTTPResponse.__init__(self, *args, **kwargs) + + def _read_status(self): + if self._status_tuple is not None: + status_tuple = self._status_tuple + self._status_tuple = None + return status_tuple + else: + return HTTPResponse._read_status(self) + + +class AWSConnection: + """Mixin for HTTPConnection that supports Expect 100-continue. + + This when mixed with a subclass of httplib.HTTPConnection (though + technically we subclass from urllib3, which subclasses + httplib.HTTPConnection) and we only override this class to support Expect + 100-continue, which we need for S3. As far as I can tell, this is + general purpose enough to not be specific to S3, but I'm being + tentative and keeping it in botocore because I've only tested + this against AWS services. + + """ + + def __init__(self, *args, **kwargs): + super().__init__(*args, **kwargs) + self._original_response_cls = self.response_class + # This variable is set when we receive an early response from the + # server. If this value is set to True, any calls to send() are noops. + # This value is reset to false every time _send_request is called. + # This is to workaround changes in urllib3 2.0 which uses separate + # send() calls in request() instead of delegating to endheaders(), + # which is where the body is sent in CPython's HTTPConnection. + self._response_received = False + self._expect_header_set = False + self._send_called = False + + def close(self): + super().close() + # Reset all of our instance state we were tracking. + self._response_received = False + self._expect_header_set = False + self._send_called = False + self.response_class = self._original_response_cls + + def request(self, method, url, body=None, headers=None, *args, **kwargs): + if headers is None: + headers = {} + self._response_received = False + if headers.get('Expect', b'') == b'100-continue': + self._expect_header_set = True + else: + self._expect_header_set = False + self.response_class = self._original_response_cls + rval = super().request(method, url, body, headers, *args, **kwargs) + self._expect_header_set = False + return rval + + def _convert_to_bytes(self, mixed_buffer): + # Take a list of mixed str/bytes and convert it + # all into a single bytestring. + # Any str will be encoded as utf-8. + bytes_buffer = [] + for chunk in mixed_buffer: + if isinstance(chunk, str): + bytes_buffer.append(chunk.encode('utf-8')) + else: + bytes_buffer.append(chunk) + msg = b"\r\n".join(bytes_buffer) + return msg + + def _send_output(self, message_body=None, *args, **kwargs): + self._buffer.extend((b"", b"")) + msg = self._convert_to_bytes(self._buffer) + del self._buffer[:] + # If msg and message_body are sent in a single send() call, + # it will avoid performance problems caused by the interaction + # between delayed ack and the Nagle algorithm. + if isinstance(message_body, bytes): + msg += message_body + message_body = None + self.send(msg) + if self._expect_header_set: + # This is our custom behavior. If the Expect header was + # set, it will trigger this custom behavior. + logger.debug("Waiting for 100 Continue response.") + # Wait for 1 second for the server to send a response. + if urllib3.util.wait_for_read(self.sock, 1): + self._handle_expect_response(message_body) + return + else: + # From the RFC: + # Because of the presence of older implementations, the + # protocol allows ambiguous situations in which a client may + # send "Expect: 100-continue" without receiving either a 417 + # (Expectation Failed) status or a 100 (Continue) status. + # Therefore, when a client sends this header field to an origin + # server (possibly via a proxy) from which it has never seen a + # 100 (Continue) status, the client SHOULD NOT wait for an + # indefinite period before sending the request body. + logger.debug( + "No response seen from server, continuing to " + "send the response body." + ) + if message_body is not None: + # message_body was not a string (i.e. it is a file), and + # we must run the risk of Nagle. + self.send(message_body) + + def _consume_headers(self, fp): + # Most servers (including S3) will just return + # the CLRF after the 100 continue response. However, + # some servers (I've specifically seen this for squid when + # used as a straight HTTP proxy) will also inject a + # Connection: keep-alive header. To account for this + # we'll read until we read '\r\n', and ignore any headers + # that come immediately after the 100 continue response. + current = None + while current != b'\r\n': + current = fp.readline() + + def _handle_expect_response(self, message_body): + # This is called when we sent the request headers containing + # an Expect: 100-continue header and received a response. + # We now need to figure out what to do. + fp = self.sock.makefile('rb', 0) + try: + maybe_status_line = fp.readline() + parts = maybe_status_line.split(None, 2) + if self._is_100_continue_status(maybe_status_line): + self._consume_headers(fp) + logger.debug( + "100 Continue response seen, now sending request body." + ) + self._send_message_body(message_body) + elif len(parts) == 3 and parts[0].startswith(b'HTTP/'): + # From the RFC: + # Requirements for HTTP/1.1 origin servers: + # + # - Upon receiving a request which includes an Expect + # request-header field with the "100-continue" + # expectation, an origin server MUST either respond with + # 100 (Continue) status and continue to read from the + # input stream, or respond with a final status code. + # + # So if we don't get a 100 Continue response, then + # whatever the server has sent back is the final response + # and don't send the message_body. + logger.debug( + "Received a non 100 Continue response " + "from the server, NOT sending request body." + ) + status_tuple = ( + parts[0].decode('ascii'), + int(parts[1]), + parts[2].decode('ascii'), + ) + response_class = functools.partial( + AWSHTTPResponse, status_tuple=status_tuple + ) + self.response_class = response_class + self._response_received = True + finally: + fp.close() + + def _send_message_body(self, message_body): + if message_body is not None: + self.send(message_body) + + def send(self, str): + if self._response_received: + if not self._send_called: + # urllib3 2.0 chunks and calls send potentially + # thousands of times inside `request` unlike the + # standard library. Only log this once for sanity. + logger.debug( + "send() called, but response already received. " + "Not sending data." + ) + self._send_called = True + return + return super().send(str) + + def _is_100_continue_status(self, maybe_status_line): + parts = maybe_status_line.split(None, 2) + # Check for HTTP/ 100 Continue\r\n or HTTP/ 100\r\n + return ( + len(parts) >= 2 + and parts[0].startswith(b'HTTP/') + and parts[1] == b'100' + ) + + +class AWSHTTPConnection(AWSConnection, HTTPConnection): + """An HTTPConnection that supports 100 Continue behavior.""" + + +class AWSHTTPSConnection(AWSConnection, VerifiedHTTPSConnection): + """An HTTPSConnection that supports 100 Continue behavior.""" + + +class AWSHTTPConnectionPool(HTTPConnectionPool): + ConnectionCls = AWSHTTPConnection + + +class AWSHTTPSConnectionPool(HTTPSConnectionPool): + ConnectionCls = AWSHTTPSConnection + + +def prepare_request_dict( + request_dict, endpoint_url, context=None, user_agent=None +): + """ + This method prepares a request dict to be created into an + AWSRequestObject. This prepares the request dict by adding the + url and the user agent to the request dict. + + :type request_dict: dict + :param request_dict: The request dict (created from the + ``serialize`` module). + + :type user_agent: string + :param user_agent: The user agent to use for this request. + + :type endpoint_url: string + :param endpoint_url: The full endpoint url, which contains at least + the scheme, the hostname, and optionally any path components. + """ + r = request_dict + if user_agent is not None: + headers = r['headers'] + headers['User-Agent'] = user_agent + host_prefix = r.get('host_prefix') + url = _urljoin(endpoint_url, r['url_path'], host_prefix) + if r['query_string']: + # NOTE: This is to avoid circular import with utils. This is being + # done to avoid moving classes to different modules as to not cause + # breaking chainges. + percent_encode_sequence = botocore.utils.percent_encode_sequence + encoded_query_string = percent_encode_sequence(r['query_string']) + if '?' not in url: + url += f'?{encoded_query_string}' + else: + url += f'&{encoded_query_string}' + r['url'] = url + r['context'] = context + if context is None: + r['context'] = {} + + +def create_request_object(request_dict): + """ + This method takes a request dict and creates an AWSRequest object + from it. + + :type request_dict: dict + :param request_dict: The request dict (created from the + ``prepare_request_dict`` method). + + :rtype: ``botocore.awsrequest.AWSRequest`` + :return: An AWSRequest object based on the request_dict. + + """ + r = request_dict + request_object = AWSRequest( + method=r['method'], + url=r['url'], + data=r['body'], + headers=r['headers'], + auth_path=r.get('auth_path'), + ) + request_object.context = r['context'] + return request_object + + +def _urljoin(endpoint_url, url_path, host_prefix): + p = urlsplit(endpoint_url) + # - + # scheme - p[0] + # netloc - p[1] + # path - p[2] + # query - p[3] + # fragment - p[4] + if not url_path or url_path == '/': + # If there's no path component, ensure the URL ends with + # a '/' for backwards compatibility. + if not p[2]: + new_path = '/' + else: + new_path = p[2] + elif p[2].endswith('/') and url_path.startswith('/'): + new_path = p[2][:-1] + url_path + else: + new_path = p[2] + url_path + + new_netloc = p[1] + if host_prefix is not None: + new_netloc = host_prefix + new_netloc + + reconstructed = urlunsplit((p[0], new_netloc, new_path, p[3], p[4])) + return reconstructed + + +class AWSRequestPreparer: + """ + This class performs preparation on AWSRequest objects similar to that of + the PreparedRequest class does in the requests library. However, the logic + has been boiled down to meet the specific use cases in botocore. Of note + there are the following differences: + This class does not heavily prepare the URL. Requests performed many + validations and corrections to ensure the URL is properly formatted. + Botocore either performs these validations elsewhere or otherwise + consistently provides well formatted URLs. + + This class does not heavily prepare the body. Body preperation is + simple and supports only the cases that we document: bytes and + file-like objects to determine the content-length. This will also + additionally prepare a body that is a dict to be url encoded params + string as some signers rely on this. Finally, this class does not + support multipart file uploads. + + This class does not prepare the method, auth or cookies. + """ + + def prepare(self, original): + method = original.method + url = self._prepare_url(original) + body = self._prepare_body(original) + headers = self._prepare_headers(original, body) + stream_output = original.stream_output + + return AWSPreparedRequest(method, url, headers, body, stream_output) + + def _prepare_url(self, original): + url = original.url + if original.params: + url_parts = urlparse(url) + delim = '&' if url_parts.query else '?' + if isinstance(original.params, Mapping): + params_to_encode = list(original.params.items()) + else: + params_to_encode = original.params + params = urlencode(params_to_encode, doseq=True) + url = delim.join((url, params)) + return url + + def _prepare_headers(self, original, prepared_body=None): + headers = HeadersDict(original.headers.items()) + + # If the transfer encoding or content length is already set, use that + if 'Transfer-Encoding' in headers or 'Content-Length' in headers: + return headers + + # Ensure we set the content length when it is expected + if original.method not in ('GET', 'HEAD', 'OPTIONS'): + length = self._determine_content_length(prepared_body) + if length is not None: + headers['Content-Length'] = str(length) + else: + # Failed to determine content length, using chunked + # NOTE: This shouldn't ever happen in practice + body_type = type(prepared_body) + logger.debug('Failed to determine length of %s', body_type) + headers['Transfer-Encoding'] = 'chunked' + + return headers + + def _to_utf8(self, item): + key, value = item + if isinstance(key, str): + key = key.encode('utf-8') + if isinstance(value, str): + value = value.encode('utf-8') + return key, value + + def _prepare_body(self, original): + """Prepares the given HTTP body data.""" + body = original.data + if body == b'': + body = None + + if isinstance(body, dict): + params = [self._to_utf8(item) for item in body.items()] + body = urlencode(params, doseq=True) + + return body + + def _determine_content_length(self, body): + return botocore.utils.determine_content_length(body) + + +class AWSRequest: + """Represents the elements of an HTTP request. + + This class was originally inspired by requests.models.Request, but has been + boiled down to meet the specific use cases in botocore. That being said this + class (even in requests) is effectively a named-tuple. + """ + + _REQUEST_PREPARER_CLS = AWSRequestPreparer + + def __init__( + self, + method=None, + url=None, + headers=None, + data=None, + params=None, + auth_path=None, + stream_output=False, + ): + self._request_preparer = self._REQUEST_PREPARER_CLS() + + # Default empty dicts for dict params. + params = {} if params is None else params + + self.method = method + self.url = url + self.headers = HTTPHeaders() + self.data = data + self.params = params + self.auth_path = auth_path + self.stream_output = stream_output + + if headers is not None: + for key, value in headers.items(): + self.headers[key] = value + + # This is a dictionary to hold information that is used when + # processing the request. What is inside of ``context`` is open-ended. + # For example, it may have a timestamp key that is used for holding + # what the timestamp is when signing the request. Note that none + # of the information that is inside of ``context`` is directly + # sent over the wire; the information is only used to assist in + # creating what is sent over the wire. + self.context = {} + + def prepare(self): + """Constructs a :class:`AWSPreparedRequest `.""" + return self._request_preparer.prepare(self) + + @property + def body(self): + body = self.prepare().body + if isinstance(body, str): + body = body.encode('utf-8') + return body + + +class AWSPreparedRequest: + """A data class representing a finalized request to be sent over the wire. + + Requests at this stage should be treated as final, and the properties of + the request should not be modified. + + :ivar method: The HTTP Method + :ivar url: The full url + :ivar headers: The HTTP headers to send. + :ivar body: The HTTP body. + :ivar stream_output: If the response for this request should be streamed. + """ + + def __init__(self, method, url, headers, body, stream_output): + self.method = method + self.url = url + self.headers = headers + self.body = body + self.stream_output = stream_output + + def __repr__(self): + fmt = ( + '' + ) + return fmt % (self.stream_output, self.method, self.url, self.headers) + + def reset_stream(self): + """Resets the streaming body to it's initial position. + + If the request contains a streaming body (a streamable file-like object) + seek to the object's initial position to ensure the entire contents of + the object is sent. This is a no-op for static bytes-like body types. + """ + # Trying to reset a stream when there is a no stream will + # just immediately return. It's not an error, it will produce + # the same result as if we had actually reset the stream (we'll send + # the entire body contents again if we need to). + # Same case if the body is a string/bytes/bytearray type. + + non_seekable_types = (bytes, str, bytearray) + if self.body is None or isinstance(self.body, non_seekable_types): + return + try: + logger.debug("Rewinding stream: %s", self.body) + self.body.seek(0) + except Exception as e: + logger.debug("Unable to rewind stream: %s", e) + raise UnseekableStreamError(stream_object=self.body) + + +class AWSResponse: + """A data class representing an HTTP response. + + This class was originally inspired by requests.models.Response, but has + been boiled down to meet the specific use cases in botocore. This has + effectively been reduced to a named tuple. + + :ivar url: The full url. + :ivar status_code: The status code of the HTTP response. + :ivar headers: The HTTP headers received. + :ivar body: The HTTP response body. + """ + + def __init__(self, url, status_code, headers, raw): + self.url = url + self.status_code = status_code + self.headers = HeadersDict(headers) + self.raw = raw + + self._content = None + + @property + def content(self): + """Content of the response as bytes.""" + + if self._content is None: + # Read the contents. + # NOTE: requests would attempt to call stream and fall back + # to a custom generator that would call read in a loop, but + # we don't rely on this behavior + self._content = b''.join(self.raw.stream()) or b'' + + return self._content + + @property + def text(self): + """Content of the response as a proper text type. + + Uses the encoding type provided in the reponse headers to decode the + response content into a proper text type. If the encoding is not + present in the headers, UTF-8 is used as a default. + """ + encoding = botocore.utils.get_encoding_from_headers(self.headers) + if encoding: + return self.content.decode(encoding) + else: + return self.content.decode('utf-8') + + +class _HeaderKey: + def __init__(self, key): + self._key = key + self._lower = key.lower() + + def __hash__(self): + return hash(self._lower) + + def __eq__(self, other): + return isinstance(other, _HeaderKey) and self._lower == other._lower + + def __str__(self): + return self._key + + def __repr__(self): + return repr(self._key) + + +class HeadersDict(MutableMapping): + """A case-insenseitive dictionary to represent HTTP headers.""" + + def __init__(self, *args, **kwargs): + self._dict = {} + self.update(*args, **kwargs) + + def __setitem__(self, key, value): + self._dict[_HeaderKey(key)] = value + + def __getitem__(self, key): + return self._dict[_HeaderKey(key)] + + def __delitem__(self, key): + del self._dict[_HeaderKey(key)] + + def __iter__(self): + return (str(key) for key in self._dict) + + def __len__(self): + return len(self._dict) + + def __repr__(self): + return repr(self._dict) + + def copy(self): + return HeadersDict(self.items()) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/cacert.pem b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/cacert.pem new file mode 100644 index 0000000000000000000000000000000000000000..919478ed06ae84199e3afc23c22eec96365886c5 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/cacert.pem @@ -0,0 +1,4361 @@ + +# Issuer: CN=GlobalSign Root CA O=GlobalSign nv-sa OU=Root CA +# Subject: CN=GlobalSign Root CA O=GlobalSign nv-sa OU=Root CA +# Label: "GlobalSign Root CA" +# Serial: 4835703278459707669005204 +# MD5 Fingerprint: 3e:45:52:15:09:51:92:e1:b7:5d:37:9f:b1:87:29:8a +# SHA1 Fingerprint: b1:bc:96:8b:d4:f4:9d:62:2a:a8:9a:81:f2:15:01:52:a4:1d:82:9c +# SHA256 Fingerprint: eb:d4:10:40:e4:bb:3e:c7:42:c9:e3:81:d3:1e:f2:a4:1a:48:b6:68:5c:96:e7:ce:f3:c1:df:6c:d4:33:1c:99 +-----BEGIN CERTIFICATE----- +MIIDdTCCAl2gAwIBAgILBAAAAAABFUtaw5QwDQYJKoZIhvcNAQEFBQAwVzELMAkG +A1UEBhMCQkUxGTAXBgNVBAoTEEdsb2JhbFNpZ24gbnYtc2ExEDAOBgNVBAsTB1Jv +b3QgQ0ExGzAZBgNVBAMTEkdsb2JhbFNpZ24gUm9vdCBDQTAeFw05ODA5MDExMjAw +MDBaFw0yODAxMjgxMjAwMDBaMFcxCzAJBgNVBAYTAkJFMRkwFwYDVQQKExBHbG9i +YWxTaWduIG52LXNhMRAwDgYDVQQLEwdSb290IENBMRswGQYDVQQDExJHbG9iYWxT +aWduIFJvb3QgQ0EwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDaDuaZ +jc6j40+Kfvvxi4Mla+pIH/EqsLmVEQS98GPR4mdmzxzdzxtIK+6NiY6arymAZavp +xy0Sy6scTHAHoT0KMM0VjU/43dSMUBUc71DuxC73/OlS8pF94G3VNTCOXkNz8kHp +1Wrjsok6Vjk4bwY8iGlbKk3Fp1S4bInMm/k8yuX9ifUSPJJ4ltbcdG6TRGHRjcdG +snUOhugZitVtbNV4FpWi6cgKOOvyJBNPc1STE4U6G7weNLWLBYy5d4ux2x8gkasJ +U26Qzns3dLlwR5EiUWMWea6xrkEmCMgZK9FGqkjWZCrXgzT/LCrBbBlDSgeF59N8 +9iFo7+ryUp9/k5DPAgMBAAGjQjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNVHRMBAf8E +BTADAQH/MB0GA1UdDgQWBBRge2YaRQ2XyolQL30EzTSo//z9SzANBgkqhkiG9w0B +AQUFAAOCAQEA1nPnfE920I2/7LqivjTFKDK1fPxsnCwrvQmeU79rXqoRSLblCKOz +yj1hTdNGCbM+w6DjY1Ub8rrvrTnhQ7k4o+YviiY776BQVvnGCv04zcQLcFGUl5gE +38NflNUVyRRBnMRddWQVDf9VMOyGj/8N7yy5Y0b2qvzfvGn9LhJIZJrglfCm7ymP +AbEVtQwdpf5pLGkkeB6zpxxxYu7KyJesF12KwvhHhm4qxFYxldBniYUr+WymXUad +DKqC5JlR3XC321Y9YeRq4VzW9v493kHMB65jUr9TU/Qr6cf9tveCX4XSQRjbgbME +HMUfpIBvFSDJ3gyICh3WZlXi/EjJKSZp4A== +-----END CERTIFICATE----- + +# Issuer: CN=GlobalSign O=GlobalSign OU=GlobalSign Root CA - R2 +# Subject: CN=GlobalSign O=GlobalSign OU=GlobalSign Root CA - R2 +# Label: "GlobalSign Root CA - R2" +# Serial: 4835703278459682885658125 +# MD5 Fingerprint: 94:14:77:7e:3e:5e:fd:8f:30:bd:41:b0:cf:e7:d0:30 +# SHA1 Fingerprint: 75:e0:ab:b6:13:85:12:27:1c:04:f8:5f:dd:de:38:e4:b7:24:2e:fe +# SHA256 Fingerprint: ca:42:dd:41:74:5f:d0:b8:1e:b9:02:36:2c:f9:d8:bf:71:9d:a1:bd:1b:1e:fc:94:6f:5b:4c:99:f4:2c:1b:9e +-----BEGIN CERTIFICATE----- +MIIDujCCAqKgAwIBAgILBAAAAAABD4Ym5g0wDQYJKoZIhvcNAQEFBQAwTDEgMB4G +A1UECxMXR2xvYmFsU2lnbiBSb290IENBIC0gUjIxEzARBgNVBAoTCkdsb2JhbFNp +Z24xEzARBgNVBAMTCkdsb2JhbFNpZ24wHhcNMDYxMjE1MDgwMDAwWhcNMjExMjE1 +MDgwMDAwWjBMMSAwHgYDVQQLExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMjETMBEG +A1UEChMKR2xvYmFsU2lnbjETMBEGA1UEAxMKR2xvYmFsU2lnbjCCASIwDQYJKoZI +hvcNAQEBBQADggEPADCCAQoCggEBAKbPJA6+Lm8omUVCxKs+IVSbC9N/hHD6ErPL +v4dfxn+G07IwXNb9rfF73OX4YJYJkhD10FPe+3t+c4isUoh7SqbKSaZeqKeMWhG8 +eoLrvozps6yWJQeXSpkqBy+0Hne/ig+1AnwblrjFuTosvNYSuetZfeLQBoZfXklq +tTleiDTsvHgMCJiEbKjNS7SgfQx5TfC4LcshytVsW33hoCmEofnTlEnLJGKRILzd +C9XZzPnqJworc5HGnRusyMvo4KD0L5CLTfuwNhv2GXqF4G3yYROIXJ/gkwpRl4pa +zq+r1feqCapgvdzZX99yqWATXgAByUr6P6TqBwMhAo6CygPCm48CAwEAAaOBnDCB +mTAOBgNVHQ8BAf8EBAMCAQYwDwYDVR0TAQH/BAUwAwEB/zAdBgNVHQ4EFgQUm+IH +V2ccHsBqBt5ZtJot39wZhi4wNgYDVR0fBC8wLTAroCmgJ4YlaHR0cDovL2NybC5n +bG9iYWxzaWduLm5ldC9yb290LXIyLmNybDAfBgNVHSMEGDAWgBSb4gdXZxwewGoG +3lm0mi3f3BmGLjANBgkqhkiG9w0BAQUFAAOCAQEAmYFThxxol4aR7OBKuEQLq4Gs +J0/WwbgcQ3izDJr86iw8bmEbTUsp9Z8FHSbBuOmDAGJFtqkIk7mpM0sYmsL4h4hO +291xNBrBVNpGP+DTKqttVCL1OmLNIG+6KYnX3ZHu01yiPqFbQfXf5WRDLenVOavS +ot+3i9DAgBkcRcAtjOj4LaR0VknFBbVPFd5uRHg5h6h+u/N5GJG79G+dwfCMNYxd +AfvDbbnvRG15RjF+Cv6pgsH/76tuIMRQyV+dTZsXjAzlAcmgQWpzU/qlULRuJQ/7 +TBj0/VLZjmmx6BEP3ojY+x1J96relc8geMJgEtslQIxq/H5COEBkEveegeGTLg== +-----END CERTIFICATE----- + +# Issuer: CN=VeriSign Class 3 Public Primary Certification Authority - G3 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 1999 VeriSign, Inc. - For authorized use only +# Subject: CN=VeriSign Class 3 Public Primary Certification Authority - G3 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 1999 VeriSign, Inc. - For authorized use only +# Label: "Verisign Class 3 Public Primary Certification Authority - G3" +# Serial: 206684696279472310254277870180966723415 +# MD5 Fingerprint: cd:68:b6:a7:c7:c4:ce:75:e0:1d:4f:57:44:61:92:09 +# SHA1 Fingerprint: 13:2d:0d:45:53:4b:69:97:cd:b2:d5:c3:39:e2:55:76:60:9b:5c:c6 +# SHA256 Fingerprint: eb:04:cf:5e:b1:f3:9a:fa:76:2f:2b:b1:20:f2:96:cb:a5:20:c1:b9:7d:b1:58:95:65:b8:1c:b9:a1:7b:72:44 +-----BEGIN CERTIFICATE----- +MIIEGjCCAwICEQCbfgZJoz5iudXukEhxKe9XMA0GCSqGSIb3DQEBBQUAMIHKMQsw +CQYDVQQGEwJVUzEXMBUGA1UEChMOVmVyaVNpZ24sIEluYy4xHzAdBgNVBAsTFlZl +cmlTaWduIFRydXN0IE5ldHdvcmsxOjA4BgNVBAsTMShjKSAxOTk5IFZlcmlTaWdu +LCBJbmMuIC0gRm9yIGF1dGhvcml6ZWQgdXNlIG9ubHkxRTBDBgNVBAMTPFZlcmlT +aWduIENsYXNzIDMgUHVibGljIFByaW1hcnkgQ2VydGlmaWNhdGlvbiBBdXRob3Jp +dHkgLSBHMzAeFw05OTEwMDEwMDAwMDBaFw0zNjA3MTYyMzU5NTlaMIHKMQswCQYD +VQQGEwJVUzEXMBUGA1UEChMOVmVyaVNpZ24sIEluYy4xHzAdBgNVBAsTFlZlcmlT +aWduIFRydXN0IE5ldHdvcmsxOjA4BgNVBAsTMShjKSAxOTk5IFZlcmlTaWduLCBJ +bmMuIC0gRm9yIGF1dGhvcml6ZWQgdXNlIG9ubHkxRTBDBgNVBAMTPFZlcmlTaWdu +IENsYXNzIDMgUHVibGljIFByaW1hcnkgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkg +LSBHMzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMu6nFL8eB8aHm8b +N3O9+MlrlBIwT/A2R/XQkQr1F8ilYcEWQE37imGQ5XYgwREGfassbqb1EUGO+i2t +KmFZpGcmTNDovFJbcCAEWNF6yaRpvIMXZK0Fi7zQWM6NjPXr8EJJC52XJ2cybuGu +kxUccLwgTS8Y3pKI6GyFVxEa6X7jJhFUokWWVYPKMIno3Nij7SqAP395ZVc+FSBm +CC+Vk7+qRy+oRpfwEuL+wgorUeZ25rdGt+INpsyow0xZVYnm6FNcHOqd8GIWC6fJ +Xwzw3sJ2zq/3avL6QaaiMxTJ5Xpj055iN9WFZZ4O5lMkdBteHRJTW8cs54NJOxWu +imi5V5cCAwEAATANBgkqhkiG9w0BAQUFAAOCAQEAERSWwauSCPc/L8my/uRan2Te +2yFPhpk0djZX3dAVL8WtfxUfN2JzPtTnX84XA9s1+ivbrmAJXx5fj267Cz3qWhMe +DGBvtcC1IyIuBwvLqXTLR7sdwdela8wv0kL9Sd2nic9TutoAWii/gt/4uhMdUIaC +/Y4wjylGsB49Ndo4YhYYSq3mtlFs3q9i6wHQHiT+eo8SGhJouPtmmRQURVyu565p +F4ErWjfJXir0xuKhXFSbplQAz/DxwceYMBo7Nhbbo27q/a2ywtrvAkcTisDxszGt +TxzhT5yvDwyd93gN2PQ1VoDat20Xj50egWTh/sVFuq1ruQp6Tk9LhO5L8X3dEQ== +-----END CERTIFICATE----- + +# Issuer: CN=Entrust.net Certification Authority (2048) O=Entrust.net OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.)/(c) 1999 Entrust.net Limited +# Subject: CN=Entrust.net Certification Authority (2048) O=Entrust.net OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.)/(c) 1999 Entrust.net Limited +# Label: "Entrust.net Premium 2048 Secure Server CA" +# Serial: 946069240 +# MD5 Fingerprint: ee:29:31:bc:32:7e:9a:e6:e8:b5:f7:51:b4:34:71:90 +# SHA1 Fingerprint: 50:30:06:09:1d:97:d4:f5:ae:39:f7:cb:e7:92:7d:7d:65:2d:34:31 +# SHA256 Fingerprint: 6d:c4:71:72:e0:1c:bc:b0:bf:62:58:0d:89:5f:e2:b8:ac:9a:d4:f8:73:80:1e:0c:10:b9:c8:37:d2:1e:b1:77 +-----BEGIN CERTIFICATE----- +MIIEKjCCAxKgAwIBAgIEOGPe+DANBgkqhkiG9w0BAQUFADCBtDEUMBIGA1UEChML +RW50cnVzdC5uZXQxQDA+BgNVBAsUN3d3dy5lbnRydXN0Lm5ldC9DUFNfMjA0OCBp +bmNvcnAuIGJ5IHJlZi4gKGxpbWl0cyBsaWFiLikxJTAjBgNVBAsTHChjKSAxOTk5 +IEVudHJ1c3QubmV0IExpbWl0ZWQxMzAxBgNVBAMTKkVudHJ1c3QubmV0IENlcnRp +ZmljYXRpb24gQXV0aG9yaXR5ICgyMDQ4KTAeFw05OTEyMjQxNzUwNTFaFw0yOTA3 +MjQxNDE1MTJaMIG0MRQwEgYDVQQKEwtFbnRydXN0Lm5ldDFAMD4GA1UECxQ3d3d3 +LmVudHJ1c3QubmV0L0NQU18yMDQ4IGluY29ycC4gYnkgcmVmLiAobGltaXRzIGxp +YWIuKTElMCMGA1UECxMcKGMpIDE5OTkgRW50cnVzdC5uZXQgTGltaXRlZDEzMDEG 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CyberTrust Root O=Baltimore OU=CyberTrust +# Subject: CN=Baltimore CyberTrust Root O=Baltimore OU=CyberTrust +# Label: "Baltimore CyberTrust Root" +# Serial: 33554617 +# MD5 Fingerprint: ac:b6:94:a5:9c:17:e0:d7:91:52:9b:b1:97:06:a6:e4 +# SHA1 Fingerprint: d4:de:20:d0:5e:66:fc:53:fe:1a:50:88:2c:78:db:28:52:ca:e4:74 +# SHA256 Fingerprint: 16:af:57:a9:f6:76:b0:ab:12:60:95:aa:5e:ba:de:f2:2a:b3:11:19:d6:44:ac:95:cd:4b:93:db:f3:f2:6a:eb +-----BEGIN CERTIFICATE----- +MIIDdzCCAl+gAwIBAgIEAgAAuTANBgkqhkiG9w0BAQUFADBaMQswCQYDVQQGEwJJ +RTESMBAGA1UEChMJQmFsdGltb3JlMRMwEQYDVQQLEwpDeWJlclRydXN0MSIwIAYD +VQQDExlCYWx0aW1vcmUgQ3liZXJUcnVzdCBSb290MB4XDTAwMDUxMjE4NDYwMFoX +DTI1MDUxMjIzNTkwMFowWjELMAkGA1UEBhMCSUUxEjAQBgNVBAoTCUJhbHRpbW9y +ZTETMBEGA1UECxMKQ3liZXJUcnVzdDEiMCAGA1UEAxMZQmFsdGltb3JlIEN5YmVy +VHJ1c3QgUm9vdDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAKMEuyKr +mD1X6CZymrV51Cni4eiVgLGw41uOKymaZN+hXe2wCQVt2yguzmKiYv60iNoS6zjr +IZ3AQSsBUnuId9Mcj8e6uYi1agnnc+gRQKfRzMpijS3ljwumUNKoUMMo6vWrJYeK 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1d:35:54:04:85:78:b0:3f:42:42:4d:bf:20:73:0a:3f +# SHA1 Fingerprint: 02:fa:f3:e2:91:43:54:68:60:78:57:69:4d:f5:e4:5b:68:85:18:68 +# SHA256 Fingerprint: 68:7f:a4:51:38:22:78:ff:f0:c8:b1:1f:8d:43:d5:76:67:1c:6e:b2:bc:ea:b4:13:fb:83:d9:65:d0:6d:2f:f2 +-----BEGIN CERTIFICATE----- +MIIENjCCAx6gAwIBAgIBATANBgkqhkiG9w0BAQUFADBvMQswCQYDVQQGEwJTRTEU +MBIGA1UEChMLQWRkVHJ1c3QgQUIxJjAkBgNVBAsTHUFkZFRydXN0IEV4dGVybmFs +IFRUUCBOZXR3b3JrMSIwIAYDVQQDExlBZGRUcnVzdCBFeHRlcm5hbCBDQSBSb290 +MB4XDTAwMDUzMDEwNDgzOFoXDTIwMDUzMDEwNDgzOFowbzELMAkGA1UEBhMCU0Ux +FDASBgNVBAoTC0FkZFRydXN0IEFCMSYwJAYDVQQLEx1BZGRUcnVzdCBFeHRlcm5h +bCBUVFAgTmV0d29yazEiMCAGA1UEAxMZQWRkVHJ1c3QgRXh0ZXJuYWwgQ0EgUm9v +dDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALf3GjPm8gAELTngTlvt +H7xsD821+iO2zt6bETOXpClMfZOfvUq8k+0DGuOPz+VtUFrWlymUWoCwSXrbLpX9 +uMq/NzgtHj6RQa1wVsfwTz/oMp50ysiQVOnGXw94nZpAPA6sYapeFI+eh6FqUNzX +mk6vBbOmcZSccbNQYArHE504B4YCqOmoaSYYkKtMsE8jqzpPhNjfzp/haW+710LX 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OU=www.entrust.net/CPS is incorporated by reference/(c) 2006 Entrust, Inc. +# Subject: CN=Entrust Root Certification Authority O=Entrust, Inc. OU=www.entrust.net/CPS is incorporated by reference/(c) 2006 Entrust, Inc. +# Label: "Entrust Root Certification Authority" +# Serial: 1164660820 +# MD5 Fingerprint: d6:a5:c3:ed:5d:dd:3e:00:c1:3d:87:92:1f:1d:3f:e4 +# SHA1 Fingerprint: b3:1e:b1:b7:40:e3:6c:84:02:da:dc:37:d4:4d:f5:d4:67:49:52:f9 +# SHA256 Fingerprint: 73:c1:76:43:4f:1b:c6:d5:ad:f4:5b:0e:76:e7:27:28:7c:8d:e5:76:16:c1:e6:e6:14:1a:2b:2c:bc:7d:8e:4c +-----BEGIN CERTIFICATE----- +MIIEkTCCA3mgAwIBAgIERWtQVDANBgkqhkiG9w0BAQUFADCBsDELMAkGA1UEBhMC +VVMxFjAUBgNVBAoTDUVudHJ1c3QsIEluYy4xOTA3BgNVBAsTMHd3dy5lbnRydXN0 +Lm5ldC9DUFMgaXMgaW5jb3Jwb3JhdGVkIGJ5IHJlZmVyZW5jZTEfMB0GA1UECxMW +KGMpIDIwMDYgRW50cnVzdCwgSW5jLjEtMCsGA1UEAxMkRW50cnVzdCBSb290IENl +cnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA2MTEyNzIwMjM0MloXDTI2MTEyNzIw +NTM0MlowgbAxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1FbnRydXN0LCBJbmMuMTkw +NwYDVQQLEzB3d3cuZW50cnVzdC5uZXQvQ1BTIGlzIGluY29ycG9yYXRlZCBieSBy +ZWZlcmVuY2UxHzAdBgNVBAsTFihjKSAyMDA2IEVudHJ1c3QsIEluYy4xLTArBgNV 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Root CA 3 O=QuoVadis Limited +# Label: "QuoVadis Root CA 3" +# Serial: 1478 +# MD5 Fingerprint: 31:85:3c:62:94:97:63:b9:aa:fd:89:4e:af:6f:e0:cf +# SHA1 Fingerprint: 1f:49:14:f7:d8:74:95:1d:dd:ae:02:c0:be:fd:3a:2d:82:75:51:85 +# SHA256 Fingerprint: 18:f1:fc:7f:20:5d:f8:ad:dd:eb:7f:e0:07:dd:57:e3:af:37:5a:9c:4d:8d:73:54:6b:f4:f1:fe:d1:e1:8d:35 +-----BEGIN CERTIFICATE----- +MIIGnTCCBIWgAwIBAgICBcYwDQYJKoZIhvcNAQEFBQAwRTELMAkGA1UEBhMCQk0x +GTAXBgNVBAoTEFF1b1ZhZGlzIExpbWl0ZWQxGzAZBgNVBAMTElF1b1ZhZGlzIFJv +b3QgQ0EgMzAeFw0wNjExMjQxOTExMjNaFw0zMTExMjQxOTA2NDRaMEUxCzAJBgNV +BAYTAkJNMRkwFwYDVQQKExBRdW9WYWRpcyBMaW1pdGVkMRswGQYDVQQDExJRdW9W +YWRpcyBSb290IENBIDMwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQDM +V0IWVJzmmNPTTe7+7cefQzlKZbPoFog02w1ZkXTPkrgEQK0CSzGrvI2RaNggDhoB +4hp7Thdd4oq3P5kazethq8Jlph+3t723j/z9cI8LoGe+AaJZz3HmDyl2/7FWeUUr +H556VOijKTVopAFPD6QuN+8bv+OPEKhyq1hX51SGyMnzW9os2l2ObjyjPtr7guXd +8lyyBTNvijbO0BNO/79KDDRMpsMhvVAEVeuxu537RR5kFd5VAYwCdrXLoT9Cabwv 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OU=Go Daddy Class 2 Certification Authority +# Subject: O=The Go Daddy Group, Inc. OU=Go Daddy Class 2 Certification Authority +# Label: "Go Daddy Class 2 CA" +# Serial: 0 +# MD5 Fingerprint: 91:de:06:25:ab:da:fd:32:17:0c:bb:25:17:2a:84:67 +# SHA1 Fingerprint: 27:96:ba:e6:3f:18:01:e2:77:26:1b:a0:d7:77:70:02:8f:20:ee:e4 +# SHA256 Fingerprint: c3:84:6b:f2:4b:9e:93:ca:64:27:4c:0e:c6:7c:1e:cc:5e:02:4f:fc:ac:d2:d7:40:19:35:0e:81:fe:54:6a:e4 +-----BEGIN CERTIFICATE----- +MIIEADCCAuigAwIBAgIBADANBgkqhkiG9w0BAQUFADBjMQswCQYDVQQGEwJVUzEh +MB8GA1UEChMYVGhlIEdvIERhZGR5IEdyb3VwLCBJbmMuMTEwLwYDVQQLEyhHbyBE +YWRkeSBDbGFzcyAyIENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA0MDYyOTE3 +MDYyMFoXDTM0MDYyOTE3MDYyMFowYzELMAkGA1UEBhMCVVMxITAfBgNVBAoTGFRo +ZSBHbyBEYWRkeSBHcm91cCwgSW5jLjExMC8GA1UECxMoR28gRGFkZHkgQ2xhc3Mg +MiBDZXJ0aWZpY2F0aW9uIEF1dGhvcml0eTCCASAwDQYJKoZIhvcNAQEBBQADggEN +ADCCAQgCggEBAN6d1+pXGEmhW+vXX0iG6r7d/+TvZxz0ZWizV3GgXne77ZtJ6XCA +PVYYYwhv2vLM0D9/AlQiVBDYsoHUwHU9S3/Hd8M+eKsaA7Ugay9qK7HFiH7Eux6w +wdhFJ2+qN1j3hybX2C32qRe3H3I2TqYXP2WYktsqbl2i/ojgC95/5Y0V4evLOtXi +EqITLdiOr18SPaAIBQi2XKVlOARFmR6jYGB0xUGlcmIbYsUfb18aQr4CUWWoriMY +avx4A6lNf4DD+qta/KFApMoZFv6yyO9ecw3ud72a9nmYvLEHZ6IVDd2gWMZEewo+ +YihfukEHU1jPEX44dMX4/7VpkI+EdOqXG68CAQOjgcAwgb0wHQYDVR0OBBYEFNLE +sNKR1EwRcbNhyz2h/t2oatTjMIGNBgNVHSMEgYUwgYKAFNLEsNKR1EwRcbNhyz2h +/t2oatTjoWekZTBjMQswCQYDVQQGEwJVUzEhMB8GA1UEChMYVGhlIEdvIERhZGR5 +IEdyb3VwLCBJbmMuMTEwLwYDVQQLEyhHbyBEYWRkeSBDbGFzcyAyIENlcnRpZmlj +YXRpb24gQXV0aG9yaXR5ggEAMAwGA1UdEwQFMAMBAf8wDQYJKoZIhvcNAQEFBQAD +ggEBADJL87LKPpH8EsahB4yOd6AzBhRckB4Y9wimPQoZ+YeAEW5p5JYXMP80kWNy +OO7MHAGjHZQopDH2esRU1/blMVgDoszOYtuURXO1v0XJJLXVggKtI3lpjbi2Tc7P +TMozI+gciKqdi0FuFskg5YmezTvacPd+mSYgFFQlq25zheabIZ0KbIIOqPjCDPoQ +HmyW74cNxA9hi63ugyuV+I6ShHI56yDqg+2DzZduCLzrTia2cyvk0/ZM/iZx4mER +dEr/VxqHD3VILs9RaRegAhJhldXRQLIQTO7ErBBDpqWeCtWVYpoNz4iCxTIM5Cuf +ReYNnyicsbkqWletNw+vHX/bvZ8= +-----END CERTIFICATE----- + +# Issuer: O=Starfield Technologies, Inc. OU=Starfield Class 2 Certification Authority +# Subject: O=Starfield Technologies, Inc. OU=Starfield Class 2 Certification Authority +# Label: "Starfield Class 2 CA" +# Serial: 0 +# MD5 Fingerprint: 32:4a:4b:bb:c8:63:69:9b:be:74:9a:c6:dd:1d:46:24 +# SHA1 Fingerprint: ad:7e:1c:28:b0:64:ef:8f:60:03:40:20:14:c3:d0:e3:37:0e:b5:8a +# SHA256 Fingerprint: 14:65:fa:20:53:97:b8:76:fa:a6:f0:a9:95:8e:55:90:e4:0f:cc:7f:aa:4f:b7:c2:c8:67:75:21:fb:5f:b6:58 +-----BEGIN CERTIFICATE----- +MIIEDzCCAvegAwIBAgIBADANBgkqhkiG9w0BAQUFADBoMQswCQYDVQQGEwJVUzEl +MCMGA1UEChMcU3RhcmZpZWxkIFRlY2hub2xvZ2llcywgSW5jLjEyMDAGA1UECxMp +U3RhcmZpZWxkIENsYXNzIDIgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwHhcNMDQw +NjI5MTczOTE2WhcNMzQwNjI5MTczOTE2WjBoMQswCQYDVQQGEwJVUzElMCMGA1UE +ChMcU3RhcmZpZWxkIFRlY2hub2xvZ2llcywgSW5jLjEyMDAGA1UECxMpU3RhcmZp +ZWxkIENsYXNzIDIgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwggEgMA0GCSqGSIb3 +DQEBAQUAA4IBDQAwggEIAoIBAQC3Msj+6XGmBIWtDBFk385N78gDGIc/oav7PKaf +8MOh2tTYbitTkPskpD6E8J7oX+zlJ0T1KKY/e97gKvDIr1MvnsoFAZMej2YcOadN ++lq2cwQlZut3f+dZxkqZJRRU6ybH838Z1TBwj6+wRir/resp7defqgSHo9T5iaU0 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GRCA" +# Serial: 42023070807708724159991140556527066870 +# MD5 Fingerprint: 37:85:44:53:32:45:1f:20:f0:f3:95:e1:25:c4:43:4e +# SHA1 Fingerprint: f4:8b:11:bf:de:ab:be:94:54:20:71:e6:41:de:6b:be:88:2b:40:b9 +# SHA256 Fingerprint: 76:00:29:5e:ef:e8:5b:9e:1f:d6:24:db:76:06:2a:aa:ae:59:81:8a:54:d2:77:4c:d4:c0:b2:c0:11:31:e1:b3 +-----BEGIN CERTIFICATE----- +MIIFcjCCA1qgAwIBAgIQH51ZWtcvwgZEpYAIaeNe9jANBgkqhkiG9w0BAQUFADA/ +MQswCQYDVQQGEwJUVzEwMC4GA1UECgwnR292ZXJubWVudCBSb290IENlcnRpZmlj +YXRpb24gQXV0aG9yaXR5MB4XDTAyMTIwNTEzMjMzM1oXDTMyMTIwNTEzMjMzM1ow +PzELMAkGA1UEBhMCVFcxMDAuBgNVBAoMJ0dvdmVybm1lbnQgUm9vdCBDZXJ0aWZp +Y2F0aW9uIEF1dGhvcml0eTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIB +AJoluOzMonWoe/fOW1mKydGGEghU7Jzy50b2iPN86aXfTEc2pBsBHH8eV4qNw8XR +IePaJD9IK/ufLqGU5ywck9G/GwGHU5nOp/UKIXZ3/6m3xnOUT0b3EEk3+qhZSV1q +gQdW8or5BtD3cCJNtLdBuTK4sfCxw5w/cP1T3YGq2GN49thTbqGsaoQkclSGxtKy +yhwOeYHWtXBiCAEuTk8O1RGvqa/lmr/czIdtJuTJV6L7lvnM4T9TjGxMfptTCAts 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O=Digital Signature Trust Co. +# Subject: CN=DST Root CA X3 O=Digital Signature Trust Co. +# Label: "DST Root CA X3" +# Serial: 91299735575339953335919266965803778155 +# MD5 Fingerprint: 41:03:52:dc:0f:f7:50:1b:16:f0:02:8e:ba:6f:45:c5 +# SHA1 Fingerprint: da:c9:02:4f:54:d8:f6:df:94:93:5f:b1:73:26:38:ca:6a:d7:7c:13 +# SHA256 Fingerprint: 06:87:26:03:31:a7:24:03:d9:09:f1:05:e6:9b:cf:0d:32:e1:bd:24:93:ff:c6:d9:20:6d:11:bc:d6:77:07:39 +-----BEGIN CERTIFICATE----- +MIIDSjCCAjKgAwIBAgIQRK+wgNajJ7qJMDmGLvhAazANBgkqhkiG9w0BAQUFADA/ +MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT +DkRTVCBSb290IENBIFgzMB4XDTAwMDkzMDIxMTIxOVoXDTIxMDkzMDE0MDExNVow +PzEkMCIGA1UEChMbRGlnaXRhbCBTaWduYXR1cmUgVHJ1c3QgQ28uMRcwFQYDVQQD +Ew5EU1QgUm9vdCBDQSBYMzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB +AN+v6ZdQCINXtMxiZfaQguzH0yxrMMpb7NnDfcdAwRgUi+DoM3ZJKuM/IUmTrE4O +rz5Iy2Xu/NMhD2XSKtkyj4zl93ewEnu1lcCJo6m67XMuegwGMoOifooUMM0RoOEq +OLl5CjH9UL2AZd+3UWODyOKIYepLYYHsUmu5ouJLGiifSKOeDNoJjj4XLh7dIN9b 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Fingerprint: 62:dd:0b:e9:b9:f5:0a:16:3e:a0:f8:e7:5c:05:3b:1e:ca:57:ea:55:c8:68:8f:64:7c:68:81:f2:c8:35:7b:95 +-----BEGIN CERTIFICATE----- +MIIFujCCA6KgAwIBAgIJALtAHEP1Xk+wMA0GCSqGSIb3DQEBBQUAMEUxCzAJBgNV +BAYTAkNIMRUwEwYDVQQKEwxTd2lzc1NpZ24gQUcxHzAdBgNVBAMTFlN3aXNzU2ln +biBHb2xkIENBIC0gRzIwHhcNMDYxMDI1MDgzMDM1WhcNMzYxMDI1MDgzMDM1WjBF +MQswCQYDVQQGEwJDSDEVMBMGA1UEChMMU3dpc3NTaWduIEFHMR8wHQYDVQQDExZT +d2lzc1NpZ24gR29sZCBDQSAtIEcyMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIIC +CgKCAgEAr+TufoskDhJuqVAtFkQ7kpJcyrhdhJJCEyq8ZVeCQD5XJM1QiyUqt2/8 +76LQwB8CJEoTlo8jE+YoWACjR8cGp4QjK7u9lit/VcyLwVcfDmJlD909Vopz2q5+ +bbqBHH5CjCA12UNNhPqE21Is8w4ndwtrvxEvcnifLtg+5hg3Wipy+dpikJKVyh+c +6bM8K8vzARO/Ws/BtQpgvd21mWRTuKCWs2/iJneRjOBiEAKfNA+k1ZIzUd6+jbqE +emA8atufK+ze3gE/bk3lUIbLtK/tREDFylqM2tIrfKjuvqblCqoOpd8FUrdVxyJd +MmqXl2MT28nbeTZ7hTpKxVKJ+STnnXepgv9VHKVxaSvRAiTysybUa9oEVeXBCsdt +MDeQKuSeFDNeFhdVxVu1yzSJkvGdJo+hB9TGsnhQ2wwMC3wLjEHXuendjIj3o02y +MszYF9rNt85mndT9Xv+9lz4pded+p2JYryU0pUHHPbwNUMoDAw8IWh+Vc3hiv69y 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OU=Certification Services Division/(c) 2006 thawte, Inc. - For authorized use only +# Subject: CN=thawte Primary Root CA O=thawte, Inc. OU=Certification Services Division/(c) 2006 thawte, Inc. - For authorized use only +# Label: "thawte Primary Root CA" +# Serial: 69529181992039203566298953787712940909 +# MD5 Fingerprint: 8c:ca:dc:0b:22:ce:f5:be:72:ac:41:1a:11:a8:d8:12 +# SHA1 Fingerprint: 91:c6:d6:ee:3e:8a:c8:63:84:e5:48:c2:99:29:5c:75:6c:81:7b:81 +# SHA256 Fingerprint: 8d:72:2f:81:a9:c1:13:c0:79:1d:f1:36:a2:96:6d:b2:6c:95:0a:97:1d:b4:6b:41:99:f4:ea:54:b7:8b:fb:9f +-----BEGIN CERTIFICATE----- +MIIEIDCCAwigAwIBAgIQNE7VVyDV7exJ9C/ON9srbTANBgkqhkiG9w0BAQUFADCB +qTELMAkGA1UEBhMCVVMxFTATBgNVBAoTDHRoYXd0ZSwgSW5jLjEoMCYGA1UECxMf +Q2VydGlmaWNhdGlvbiBTZXJ2aWNlcyBEaXZpc2lvbjE4MDYGA1UECxMvKGMpIDIw +MDYgdGhhd3RlLCBJbmMuIC0gRm9yIGF1dGhvcml6ZWQgdXNlIG9ubHkxHzAdBgNV +BAMTFnRoYXd0ZSBQcmltYXJ5IFJvb3QgQ0EwHhcNMDYxMTE3MDAwMDAwWhcNMzYw +NzE2MjM1OTU5WjCBqTELMAkGA1UEBhMCVVMxFTATBgNVBAoTDHRoYXd0ZSwgSW5j +LjEoMCYGA1UECxMfQ2VydGlmaWNhdGlvbiBTZXJ2aWNlcyBEaXZpc2lvbjE4MDYG +A1UECxMvKGMpIDIwMDYgdGhhd3RlLCBJbmMuIC0gRm9yIGF1dGhvcml6ZWQgdXNl +IG9ubHkxHzAdBgNVBAMTFnRoYXd0ZSBQcmltYXJ5IFJvb3QgQ0EwggEiMA0GCSqG +SIb3DQEBAQUAA4IBDwAwggEKAoIBAQCsoPD7gFnUnMekz52hWXMJEEUMDSxuaPFs +W0hoSVk3/AszGcJ3f8wQLZU0HObrTQmnHNK4yZc2AreJ1CRfBsDMRJSUjQJib+ta +3RGNKJpchJAQeg29dGYvajig4tVUROsdB58Hum/u6f1OCyn1PoSgAfGcq/gcfomk +6KHYcWUNo1F77rzSImANuVud37r8UVsLr5iy6S7pBOhih94ryNdOwUxkHt3Ph1i6 +Sk/KaAcdHJ1KxtUvkcx8cXIcxcBn6zL9yZJclNqFwJu/U30rCfSMnZEfl2pSy94J +NqR32HuHUETVPm4pafs5SSYeCaWAe0At6+gnhcn+Yf1+5nyXHdWdAgMBAAGjQjBA +MA8GA1UdEwEB/wQFMAMBAf8wDgYDVR0PAQH/BAQDAgEGMB0GA1UdDgQWBBR7W0XP +r87Lev0xkhpqtvNG61dIUDANBgkqhkiG9w0BAQUFAAOCAQEAeRHAS7ORtvzw6WfU +DW5FvlXok9LOAz/t2iWwHVfLHjp2oEzsUHboZHIMpKnxuIvW1oeEuzLlQRHAd9mz +YJ3rG9XRbkREqaYB7FViHXe4XI5ISXycO1cRrK1zN44veFyQaEfZYGDm/Ac9IiAX +xPcW6cTYcvnIc3zfFi8VqT79aie2oetaupgf1eNNZAqdE8hhuvU5HIe6uL17In/2 +/qxAeeWsEG89jxt5dovEN7MhGITlNgDrYyCZuen+MwS7QcjBAvlEYyCegc5C09Y/ +LHbTY5xZ3Y+m4Q6gLkH3LpVHz7z9M/P2C2F+fpErgUfCJzDupxBdN49cOSvkBPB7 +jVaMaA== +-----END CERTIFICATE----- + +# Issuer: CN=VeriSign Class 3 Public Primary Certification Authority - G5 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2006 VeriSign, Inc. - For authorized use only +# Subject: CN=VeriSign Class 3 Public Primary Certification Authority - G5 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2006 VeriSign, Inc. - For authorized use only +# Label: "VeriSign Class 3 Public Primary Certification Authority - G5" +# Serial: 33037644167568058970164719475676101450 +# MD5 Fingerprint: cb:17:e4:31:67:3e:e2:09:fe:45:57:93:f3:0a:fa:1c +# SHA1 Fingerprint: 4e:b6:d5:78:49:9b:1c:cf:5f:58:1e:ad:56:be:3d:9b:67:44:a5:e5 +# SHA256 Fingerprint: 9a:cf:ab:7e:43:c8:d8:80:d0:6b:26:2a:94:de:ee:e4:b4:65:99:89:c3:d0:ca:f1:9b:af:64:05:e4:1a:b7:df +-----BEGIN CERTIFICATE----- +MIIE0zCCA7ugAwIBAgIQGNrRniZ96LtKIVjNzGs7SjANBgkqhkiG9w0BAQUFADCB +yjELMAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQL +ExZWZXJpU2lnbiBUcnVzdCBOZXR3b3JrMTowOAYDVQQLEzEoYykgMjAwNiBWZXJp +U2lnbiwgSW5jLiAtIEZvciBhdXRob3JpemVkIHVzZSBvbmx5MUUwQwYDVQQDEzxW +ZXJpU2lnbiBDbGFzcyAzIFB1YmxpYyBQcmltYXJ5IENlcnRpZmljYXRpb24gQXV0 +aG9yaXR5IC0gRzUwHhcNMDYxMTA4MDAwMDAwWhcNMzYwNzE2MjM1OTU5WjCByjEL +MAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQLExZW 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CERTIFICATE----- + +# Issuer: CN=COMODO Certification Authority O=COMODO CA Limited +# Subject: CN=COMODO Certification Authority O=COMODO CA Limited +# Label: "COMODO Certification Authority" +# Serial: 104350513648249232941998508985834464573 +# MD5 Fingerprint: 5c:48:dc:f7:42:72:ec:56:94:6d:1c:cc:71:35:80:75 +# SHA1 Fingerprint: 66:31:bf:9e:f7:4f:9e:b6:c9:d5:a6:0c:ba:6a:be:d1:f7:bd:ef:7b +# SHA256 Fingerprint: 0c:2c:d6:3d:f7:80:6f:a3:99:ed:e8:09:11:6b:57:5b:f8:79:89:f0:65:18:f9:80:8c:86:05:03:17:8b:af:66 +-----BEGIN CERTIFICATE----- +MIIEHTCCAwWgAwIBAgIQToEtioJl4AsC7j41AkblPTANBgkqhkiG9w0BAQUFADCB +gTELMAkGA1UEBhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4G +A1UEBxMHU2FsZm9yZDEaMBgGA1UEChMRQ09NT0RPIENBIExpbWl0ZWQxJzAlBgNV +BAMTHkNPTU9ETyBDZXJ0aWZpY2F0aW9uIEF1dGhvcml0eTAeFw0wNjEyMDEwMDAw +MDBaFw0yOTEyMzEyMzU5NTlaMIGBMQswCQYDVQQGEwJHQjEbMBkGA1UECBMSR3Jl +YXRlciBNYW5jaGVzdGVyMRAwDgYDVQQHEwdTYWxmb3JkMRowGAYDVQQKExFDT01P 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OU=ePKI Root Certification Authority +# Subject: O=Chunghwa Telecom Co., Ltd. OU=ePKI Root Certification Authority +# Label: "ePKI Root Certification Authority" +# Serial: 28956088682735189655030529057352760477 +# MD5 Fingerprint: 1b:2e:00:ca:26:06:90:3d:ad:fe:6f:15:68:d3:6b:b3 +# SHA1 Fingerprint: 67:65:0d:f1:7e:8e:7e:5b:82:40:a4:f4:56:4b:cf:e2:3d:69:c6:f0 +# SHA256 Fingerprint: c0:a6:f4:dc:63:a2:4b:fd:cf:54:ef:2a:6a:08:2a:0a:72:de:35:80:3e:2f:f5:ff:52:7a:e5:d8:72:06:df:d5 +-----BEGIN CERTIFICATE----- +MIIFsDCCA5igAwIBAgIQFci9ZUdcr7iXAF7kBtK8nTANBgkqhkiG9w0BAQUFADBe +MQswCQYDVQQGEwJUVzEjMCEGA1UECgwaQ2h1bmdod2EgVGVsZWNvbSBDby4sIEx0 +ZC4xKjAoBgNVBAsMIWVQS0kgUm9vdCBDZXJ0aWZpY2F0aW9uIEF1dGhvcml0eTAe +Fw0wNDEyMjAwMjMxMjdaFw0zNDEyMjAwMjMxMjdaMF4xCzAJBgNVBAYTAlRXMSMw +IQYDVQQKDBpDaHVuZ2h3YSBUZWxlY29tIENvLiwgTHRkLjEqMCgGA1UECwwhZVBL +SSBSb290IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MIICIjANBgkqhkiG9w0BAQEF +AAOCAg8AMIICCgKCAgEA4SUP7o3biDN1Z82tH306Tm2d0y8U82N0ywEhajfqhFAH +SyZbCUNsIZ5qyNUD9WBpj8zwIuQf5/dqIjG3LBXy4P4AakP/h2XGtRrBp0xtInAh +ijHyl3SJCRImHJ7K2RKilTza6We/CKBk49ZCt0Xvl/T29de1ShUCWH2YWEtgvM3X +DZoTM1PRYfl61dd4s5oz9wCGzh1NlDivqOx4UXCKXBCDUSH3ET00hl7lSM2XgYI1 +TBnsZfZrxQWh7kcT1rMhJ5QQCtkkO7q+RBNGMD+XPNjX12ruOzjjK9SXDrkb5wdJ +fzcq+Xd4z1TtW0ado4AOkUPB1ltfFLqfpo0kR0BZv3I4sjZsN/+Z0V0OWQqraffA +sgRFelQArr5T9rXn4fg8ozHSqf4hUmTFpmfwdQcGlBSBVcYn5AGPF8Fqcde+S/uU +WH1+ETOxQvdibBjWzwloPn9s9h6PYq2lY9sJpx8iQkEeb5mKPtf5P0B6ebClAZLS +nT0IFaUQAS2zMnaolQ2zepr7BxB4EW/hj8e6DyUadCrlHJhBmd8hh+iVBmoKs2pH +dmX2Os+PYhcZewoozRrSgx4hxyy/vv9haLdnG7t4TY3OZ+XkwY63I2binZB1NJip +NiuKmpS5nezMirH4JYlcWrYvjB9teSSnUmjDhDXiZo1jDiVN1Rmy5nk3pyKdVDEC +AwEAAaNqMGgwHQYDVR0OBBYEFB4M97Zn8uGSJglFwFU5Lnc/QkqiMAwGA1UdEwQF +MAMBAf8wOQYEZyoHAAQxMC8wLQIBADAJBgUrDgMCGgUAMAcGBWcqAwAABBRFsMLH +ClZ87lt4DJX5GFPBphzYEDANBgkqhkiG9w0BAQUFAAOCAgEACbODU1kBPpVJufGB +uvl2ICO1J2B01GqZNF5sAFPZn/KmsSQHRGoqxqWOeBLoR9lYGxMqXnmbnwoqZ6Yl +PwZpVnPDimZI+ymBV3QGypzqKOg4ZyYr8dW1P2WT+DZdjo2NQCCHGervJ8A9tDkP +JXtoUHRVnAxZfVo9QZQlUgjgRywVMRnVvwdVxrsStZf0X4OFunHB2WyBEXYKCrC/ +gpf36j36+uwtqSiUO1bd0lEursC9CBWMd1I0ltabrNMdjmEPNXubrjlpC2JgQCA2 +j6/7Nu4tCEoduL+bXPjqpRugc6bY+G7gMwRfaKonh+3ZwZCc7b3jajWvY9+rGNm6 +5ulK6lCKD2GTHuItGeIwlDWSXQ62B68ZgI9HkFFLLk3dheLSClIKF5r8GrBQAuUB +o2M3IUxExJtRmREOc5wGj1QupyheRDmHVi03vYVElOEMSyycw5KFNGHLD7ibSkNS +/jQ6fbjpKdx2qcgw+BRxgMYeNkh0IkFch4LoGHGLQYlE535YW6i4jRPpp2zDR+2z +Gp1iro2C6pSe3VkQw63d4k3jMdXH7OjysP6SHhYKGvzZ8/gntsm+HbRsZJB/9OTE +W9c3rkIO3aQab3yIVMUWbuF6aC74Or8NpDyJO3inTmODBCEIZ43ygknQW/2xzQ+D +hNQ+IIX3Sj0rnP0qCglN6oH4EZw= +-----END CERTIFICATE----- + +# Issuer: O=certSIGN OU=certSIGN ROOT CA +# Subject: O=certSIGN OU=certSIGN ROOT CA +# Label: "certSIGN ROOT CA" +# Serial: 35210227249154 +# MD5 Fingerprint: 18:98:c0:d6:e9:3a:fc:f9:b0:f5:0c:f7:4b:01:44:17 +# SHA1 Fingerprint: fa:b7:ee:36:97:26:62:fb:2d:b0:2a:f6:bf:03:fd:e8:7c:4b:2f:9b +# SHA256 Fingerprint: ea:a9:62:c4:fa:4a:6b:af:eb:e4:15:19:6d:35:1c:cd:88:8d:4f:53:f3:fa:8a:e6:d7:c4:66:a9:4e:60:42:bb +-----BEGIN CERTIFICATE----- +MIIDODCCAiCgAwIBAgIGIAYFFnACMA0GCSqGSIb3DQEBBQUAMDsxCzAJBgNVBAYT +AlJPMREwDwYDVQQKEwhjZXJ0U0lHTjEZMBcGA1UECxMQY2VydFNJR04gUk9PVCBD +QTAeFw0wNjA3MDQxNzIwMDRaFw0zMTA3MDQxNzIwMDRaMDsxCzAJBgNVBAYTAlJP +MREwDwYDVQQKEwhjZXJ0U0lHTjEZMBcGA1UECxMQY2VydFNJR04gUk9PVCBDQTCC +ASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALczuX7IJUqOtdu0KBuqV5Do +0SLTZLrTk+jUrIZhQGpgV2hUhE28alQCBf/fm5oqrl0Hj0rDKH/v+yv6efHHrfAQ +UySQi2bJqIirr1qjAOm+ukbuW3N7LBeCgV5iLKECZbO9xSsAfsT8AzNXDe3i+s5d +RdY4zTW2ssHQnIFKquSyAVwdj1+ZxLGt24gh65AIgoDzMKND5pCCrlUoSe1b16kQ +OA7+j0xbm0bqQfWwCHTD0IgztnzXdN/chNFDDnU5oSVAKOp4yw4sLjmdjItuFhwv +JoIQ4uNllAoEwF73XVv4EOLQunpL+943AAAaWyjj0pxzPjKHmKHJUS/X3qwzs08C +AwEAAaNCMEAwDwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMCAcYwHQYDVR0O +BBYEFOCMm9slSbPxfIbWskKHC9BroNnkMA0GCSqGSIb3DQEBBQUAA4IBAQA+0hyJ +LjX8+HXd5n9liPRyTMks1zJO890ZeUe9jjtbkw9QSSQTaxQGcu8J06Gh40CEyecY +MnQ8SG4Pn0vU9x7Tk4ZkVJdjclDVVc/6IJMCopvDI5NOFlV2oHB5bc0hH88vLbwZ +44gx+FkagQnIl6Z0x2DEW8xXjrJ1/RsCCdtZb3KTafcxQdaIOL+Hsr0Wefmq5L6I +Jd1hJyMctTEHBDa0GpC9oHRxUIltvBTjD4au8as+x6AJzKNI0eDbZOeStc+vckNw +i/nDhDwTqn6Sm1dTk/pwwpEOMfmbZ13pljheX7NzTogVZ96edhBiIL5VaZVDADlN +9u6wWk5JRFRYX0KD +-----END CERTIFICATE----- + +# Issuer: CN=GeoTrust Primary Certification Authority - G3 O=GeoTrust Inc. OU=(c) 2008 GeoTrust Inc. - For authorized use only +# Subject: CN=GeoTrust Primary Certification Authority - G3 O=GeoTrust Inc. OU=(c) 2008 GeoTrust Inc. - For authorized use only +# Label: "GeoTrust Primary Certification Authority - G3" +# Serial: 28809105769928564313984085209975885599 +# MD5 Fingerprint: b5:e8:34:36:c9:10:44:58:48:70:6d:2e:83:d4:b8:05 +# SHA1 Fingerprint: 03:9e:ed:b8:0b:e7:a0:3c:69:53:89:3b:20:d2:d9:32:3a:4c:2a:fd +# SHA256 Fingerprint: b4:78:b8:12:25:0d:f8:78:63:5c:2a:a7:ec:7d:15:5e:aa:62:5e:e8:29:16:e2:cd:29:43:61:88:6c:d1:fb:d4 +-----BEGIN CERTIFICATE----- +MIID/jCCAuagAwIBAgIQFaxulBmyeUtB9iepwxgPHzANBgkqhkiG9w0BAQsFADCB +mDELMAkGA1UEBhMCVVMxFjAUBgNVBAoTDUdlb1RydXN0IEluYy4xOTA3BgNVBAsT +MChjKSAyMDA4IEdlb1RydXN0IEluYy4gLSBGb3IgYXV0aG9yaXplZCB1c2Ugb25s +eTE2MDQGA1UEAxMtR2VvVHJ1c3QgUHJpbWFyeSBDZXJ0aWZpY2F0aW9uIEF1dGhv +cml0eSAtIEczMB4XDTA4MDQwMjAwMDAwMFoXDTM3MTIwMTIzNTk1OVowgZgxCzAJ +BgNVBAYTAlVTMRYwFAYDVQQKEw1HZW9UcnVzdCBJbmMuMTkwNwYDVQQLEzAoYykg +MjAwOCBHZW9UcnVzdCBJbmMuIC0gRm9yIGF1dGhvcml6ZWQgdXNlIG9ubHkxNjA0 +BgNVBAMTLUdlb1RydXN0IFByaW1hcnkgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkg +LSBHMzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANziXmJYHTNXOTIz ++uvLh4yn1ErdBojqZI4xmKU4kB6Yzy5jK/BGvESyiaHAKAxJcCGVn2TAppMSAmUm +hsalifD614SgcK9PGpc/BkTVyetyEH3kMSj7HGHmKAdEc5IiaacDiGydY8hS2pgn +5whMcD60yRLBxWeDXTPzAxHsatBT4tG6NmCUgLthY2xbF37fQJQeqw3CIShwiP/W +JmxsYAQlTlV+fe+/lEjetx3dcI0FX4ilm/LC7urRQEFtYjgdVgbFA0dRIBn8exAL +DmKudlW/X3e+PkkBUz2YJQN2JFodtNuJ6nnltrM7P7pMKEF/BqxqjsHQ9gUdfeZC +huOl1UcCAwEAAaNCMEAwDwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMCAQYw +HQYDVR0OBBYEFMR5yo6hTgMdHNxr2zFblD4/MH8tMA0GCSqGSIb3DQEBCwUAA4IB +AQAtxRPPVoB7eni9n64smefv2t+UXglpp+duaIy9cr5HqQ6XErhK8WTTOd8lNNTB +zU6B8A8ExCSzNJbGpqow32hhc9f5joWJ7w5elShKKiePEI4ufIbEAp7aDHdlDkQN +kv39sxY2+hENHYwOB4lqKVb3cvTdFZx3NWZXqxNT2I7BQMXXExZacse3aQHEerGD +AWh9jUGhlBjBJVz88P6DAod8DQ3PLghcSkANPuyBYeYk28rgDi0Hsj5W3I31QYUH +SJsMC8tJP33st/3LjWeJGqvtux6jAAgIFyqCXDFdRootD4abdNlF+9RAsXqqaC2G +spki4cErx5z481+oghLrGREt +-----END CERTIFICATE----- + +# Issuer: CN=thawte Primary Root CA - G2 O=thawte, Inc. OU=(c) 2007 thawte, Inc. - For authorized use only +# Subject: CN=thawte Primary Root CA - G2 O=thawte, Inc. OU=(c) 2007 thawte, Inc. - For authorized use only +# Label: "thawte Primary Root CA - G2" +# Serial: 71758320672825410020661621085256472406 +# MD5 Fingerprint: 74:9d:ea:60:24:c4:fd:22:53:3e:cc:3a:72:d9:29:4f +# SHA1 Fingerprint: aa:db:bc:22:23:8f:c4:01:a1:27:bb:38:dd:f4:1d:db:08:9e:f0:12 +# SHA256 Fingerprint: a4:31:0d:50:af:18:a6:44:71:90:37:2a:86:af:af:8b:95:1f:fb:43:1d:83:7f:1e:56:88:b4:59:71:ed:15:57 +-----BEGIN CERTIFICATE----- +MIICiDCCAg2gAwIBAgIQNfwmXNmET8k9Jj1Xm67XVjAKBggqhkjOPQQDAzCBhDEL +MAkGA1UEBhMCVVMxFTATBgNVBAoTDHRoYXd0ZSwgSW5jLjE4MDYGA1UECxMvKGMp +IDIwMDcgdGhhd3RlLCBJbmMuIC0gRm9yIGF1dGhvcml6ZWQgdXNlIG9ubHkxJDAi +BgNVBAMTG3RoYXd0ZSBQcmltYXJ5IFJvb3QgQ0EgLSBHMjAeFw0wNzExMDUwMDAw +MDBaFw0zODAxMTgyMzU5NTlaMIGEMQswCQYDVQQGEwJVUzEVMBMGA1UEChMMdGhh +d3RlLCBJbmMuMTgwNgYDVQQLEy8oYykgMjAwNyB0aGF3dGUsIEluYy4gLSBGb3Ig +YXV0aG9yaXplZCB1c2Ugb25seTEkMCIGA1UEAxMbdGhhd3RlIFByaW1hcnkgUm9v +dCBDQSAtIEcyMHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEotWcgnuVnfFSeIf+iha/ +BebfowJPDQfGAFG6DAJSLSKkQjnE/o/qycG+1E3/n3qe4rF8mq2nhglzh9HnmuN6 +papu+7qzcMBniKI11KOasf2twu8x+qi58/sIxpHR+ymVo0IwQDAPBgNVHRMBAf8E +BTADAQH/MA4GA1UdDwEB/wQEAwIBBjAdBgNVHQ4EFgQUmtgAMADna3+FGO6Lts6K +DPgR4bswCgYIKoZIzj0EAwMDaQAwZgIxAN344FdHW6fmCsO99YCKlzUNG4k8VIZ3 +KMqh9HneteY4sPBlcIx/AlTCv//YoT7ZzwIxAMSNlPzcU9LcnXgWHxUzI1NS41ox +XZ3Krr0TKUQNJ1uo52icEvdYPy5yAlejj6EULg== +-----END CERTIFICATE----- + +# Issuer: CN=thawte Primary Root CA - G3 O=thawte, Inc. OU=Certification Services Division/(c) 2008 thawte, Inc. - For authorized use only +# Subject: CN=thawte Primary Root CA - G3 O=thawte, Inc. OU=Certification Services Division/(c) 2008 thawte, Inc. - For authorized use only +# Label: "thawte Primary Root CA - G3" +# Serial: 127614157056681299805556476275995414779 +# MD5 Fingerprint: fb:1b:5d:43:8a:94:cd:44:c6:76:f2:43:4b:47:e7:31 +# SHA1 Fingerprint: f1:8b:53:8d:1b:e9:03:b6:a6:f0:56:43:5b:17:15:89:ca:f3:6b:f2 +# SHA256 Fingerprint: 4b:03:f4:58:07:ad:70:f2:1b:fc:2c:ae:71:c9:fd:e4:60:4c:06:4c:f5:ff:b6:86:ba:e5:db:aa:d7:fd:d3:4c +-----BEGIN CERTIFICATE----- +MIIEKjCCAxKgAwIBAgIQYAGXt0an6rS0mtZLL/eQ+zANBgkqhkiG9w0BAQsFADCB +rjELMAkGA1UEBhMCVVMxFTATBgNVBAoTDHRoYXd0ZSwgSW5jLjEoMCYGA1UECxMf +Q2VydGlmaWNhdGlvbiBTZXJ2aWNlcyBEaXZpc2lvbjE4MDYGA1UECxMvKGMpIDIw +MDggdGhhd3RlLCBJbmMuIC0gRm9yIGF1dGhvcml6ZWQgdXNlIG9ubHkxJDAiBgNV +BAMTG3RoYXd0ZSBQcmltYXJ5IFJvb3QgQ0EgLSBHMzAeFw0wODA0MDIwMDAwMDBa +Fw0zNzEyMDEyMzU5NTlaMIGuMQswCQYDVQQGEwJVUzEVMBMGA1UEChMMdGhhd3Rl +LCBJbmMuMSgwJgYDVQQLEx9DZXJ0aWZpY2F0aW9uIFNlcnZpY2VzIERpdmlzaW9u +MTgwNgYDVQQLEy8oYykgMjAwOCB0aGF3dGUsIEluYy4gLSBGb3IgYXV0aG9yaXpl +ZCB1c2Ugb25seTEkMCIGA1UEAxMbdGhhd3RlIFByaW1hcnkgUm9vdCBDQSAtIEcz +MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsr8nLPvb2FvdeHsbnndm +gcs+vHyu86YnmjSjaDFxODNi5PNxZnmxqWWjpYvVj2AtP0LMqmsywCPLLEHd5N/8 +YZzic7IilRFDGF/Eth9XbAoFWCLINkw6fKXRz4aviKdEAhN0cXMKQlkC+BsUa0Lf +b1+6a4KinVvnSr0eAXLbS3ToO39/fR8EtCab4LRarEc9VbjXsCZSKAExQGbY2SS9 +9irY7CFJXJv2eul/VTV+lmuNk5Mny5K76qxAwJ/C+IDPXfRa3M50hqY+bAtTyr2S +zhkGcuYMXDhpxwTWvGzOW/b3aJzcJRVIiKHpqfiYnODz1TEoYRFsZ5aNOZnLwkUk +OQIDAQABo0IwQDAPBgNVHRMBAf8EBTADAQH/MA4GA1UdDwEB/wQEAwIBBjAdBgNV +HQ4EFgQUrWyqlGCc7eT/+j4KdCtjA/e2Wb8wDQYJKoZIhvcNAQELBQADggEBABpA +2JVlrAmSicY59BDlqQ5mU1143vokkbvnRFHfxhY0Cu9qRFHqKweKA3rD6z8KLFIW +oCtDuSWQP3CpMyVtRRooOyfPqsMpQhvfO0zAMzRbQYi/aytlryjvsvXDqmbOe1bu +t8jLZ8HJnBoYuMTDSQPxYA5QzUbF83d597YV4Djbxy8ooAw/dyZ02SUS2jHaGh7c +KUGRIjxpp7sC8rZcJwOJ9Abqm+RyguOhCcHpABnTPtRwa7pxpqpYrvS76Wy274fM +m7v/OeZWYdMKp8RcTGB7BXcmer/YB1IsYvdwY9k5vG8cwnncdimvzsUsZAReiDZu +MdRAGmI0Nj81Aa6sY6A= +-----END CERTIFICATE----- + +# Issuer: CN=GeoTrust Primary Certification Authority - G2 O=GeoTrust Inc. OU=(c) 2007 GeoTrust Inc. - For authorized use only +# Subject: CN=GeoTrust Primary Certification Authority - G2 O=GeoTrust Inc. OU=(c) 2007 GeoTrust Inc. - For authorized use only +# Label: "GeoTrust Primary Certification Authority - G2" +# Serial: 80682863203381065782177908751794619243 +# MD5 Fingerprint: 01:5e:d8:6b:bd:6f:3d:8e:a1:31:f8:12:e0:98:73:6a +# SHA1 Fingerprint: 8d:17:84:d5:37:f3:03:7d:ec:70:fe:57:8b:51:9a:99:e6:10:d7:b0 +# SHA256 Fingerprint: 5e:db:7a:c4:3b:82:a0:6a:87:61:e8:d7:be:49:79:eb:f2:61:1f:7d:d7:9b:f9:1c:1c:6b:56:6a:21:9e:d7:66 +-----BEGIN CERTIFICATE----- +MIICrjCCAjWgAwIBAgIQPLL0SAoA4v7rJDteYD7DazAKBggqhkjOPQQDAzCBmDEL +MAkGA1UEBhMCVVMxFjAUBgNVBAoTDUdlb1RydXN0IEluYy4xOTA3BgNVBAsTMChj +KSAyMDA3IEdlb1RydXN0IEluYy4gLSBGb3IgYXV0aG9yaXplZCB1c2Ugb25seTE2 +MDQGA1UEAxMtR2VvVHJ1c3QgUHJpbWFyeSBDZXJ0aWZpY2F0aW9uIEF1dGhvcml0 +eSAtIEcyMB4XDTA3MTEwNTAwMDAwMFoXDTM4MDExODIzNTk1OVowgZgxCzAJBgNV +BAYTAlVTMRYwFAYDVQQKEw1HZW9UcnVzdCBJbmMuMTkwNwYDVQQLEzAoYykgMjAw +NyBHZW9UcnVzdCBJbmMuIC0gRm9yIGF1dGhvcml6ZWQgdXNlIG9ubHkxNjA0BgNV +BAMTLUdlb1RydXN0IFByaW1hcnkgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkgLSBH +MjB2MBAGByqGSM49AgEGBSuBBAAiA2IABBWx6P0DFUPlrOuHNxFi79KDNlJ9RVcL +So17VDs6bl8VAsBQps8lL33KSLjHUGMcKiEIfJo22Av+0SbFWDEwKCXzXV2juLal +tJLtbCyf691DiaI8S0iRHVDsJt/WYC69IaNCMEAwDwYDVR0TAQH/BAUwAwEB/zAO +BgNVHQ8BAf8EBAMCAQYwHQYDVR0OBBYEFBVfNVdRVfslsq0DafwBo/q+EVXVMAoG +CCqGSM49BAMDA2cAMGQCMGSWWaboCd6LuvpaiIjwH5HTRqjySkwCY/tsXzjbLkGT +qQ7mndwxHLKgpxgceeHHNgIwOlavmnRs9vuD4DPTCF+hnMJbn0bWtsuRBmOiBucz +rD6ogRLQy7rQkgu2npaqBA+K +-----END CERTIFICATE----- + +# Issuer: CN=VeriSign Universal Root Certification Authority O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2008 VeriSign, Inc. - For authorized use only +# Subject: CN=VeriSign Universal Root Certification Authority O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2008 VeriSign, Inc. - For authorized use only +# Label: "VeriSign Universal Root Certification Authority" +# Serial: 85209574734084581917763752644031726877 +# MD5 Fingerprint: 8e:ad:b5:01:aa:4d:81:e4:8c:1d:d1:e1:14:00:95:19 +# SHA1 Fingerprint: 36:79:ca:35:66:87:72:30:4d:30:a5:fb:87:3b:0f:a7:7b:b7:0d:54 +# SHA256 Fingerprint: 23:99:56:11:27:a5:71:25:de:8c:ef:ea:61:0d:df:2f:a0:78:b5:c8:06:7f:4e:82:82:90:bf:b8:60:e8:4b:3c +-----BEGIN CERTIFICATE----- +MIIEuTCCA6GgAwIBAgIQQBrEZCGzEyEDDrvkEhrFHTANBgkqhkiG9w0BAQsFADCB +vTELMAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQL +ExZWZXJpU2lnbiBUcnVzdCBOZXR3b3JrMTowOAYDVQQLEzEoYykgMjAwOCBWZXJp +U2lnbiwgSW5jLiAtIEZvciBhdXRob3JpemVkIHVzZSBvbmx5MTgwNgYDVQQDEy9W +ZXJpU2lnbiBVbml2ZXJzYWwgUm9vdCBDZXJ0aWZpY2F0aW9uIEF1dGhvcml0eTAe +Fw0wODA0MDIwMDAwMDBaFw0zNzEyMDEyMzU5NTlaMIG9MQswCQYDVQQGEwJVUzEX +MBUGA1UEChMOVmVyaVNpZ24sIEluYy4xHzAdBgNVBAsTFlZlcmlTaWduIFRydXN0 +IE5ldHdvcmsxOjA4BgNVBAsTMShjKSAyMDA4IFZlcmlTaWduLCBJbmMuIC0gRm9y +IGF1dGhvcml6ZWQgdXNlIG9ubHkxODA2BgNVBAMTL1ZlcmlTaWduIFVuaXZlcnNh +bCBSb290IENlcnRpZmljYXRpb24gQXV0aG9yaXR5MIIBIjANBgkqhkiG9w0BAQEF +AAOCAQ8AMIIBCgKCAQEAx2E3XrEBNNti1xWb/1hajCMj1mCOkdeQmIN65lgZOIzF +9uVkhbSicfvtvbnazU0AtMgtc6XHaXGVHzk8skQHnOgO+k1KxCHfKWGPMiJhgsWH +H26MfF8WIFFE0XBPV+rjHOPMee5Y2A7Cs0WTwCznmhcrewA3ekEzeOEz4vMQGn+H +LL729fdC4uW/h2KJXwBL38Xd5HVEMkE6HnFuacsLdUYI0crSK5XQz/u5QGtkjFdN +/BMReYTtXlT2NJ8IAfMQJQYXStrxHXpma5hgZqTZ79IugvHw7wnqRMkVauIDbjPT +rJ9VAMf2CGqUuV/c4DPxhGD5WycRtPwW8rtWaoAljQIDAQABo4GyMIGvMA8GA1Ud +EwEB/wQFMAMBAf8wDgYDVR0PAQH/BAQDAgEGMG0GCCsGAQUFBwEMBGEwX6FdoFsw +WTBXMFUWCWltYWdlL2dpZjAhMB8wBwYFKw4DAhoEFI/l0xqGrI2Oa8PPgGrUSBgs +exkuMCUWI2h0dHA6Ly9sb2dvLnZlcmlzaWduLmNvbS92c2xvZ28uZ2lmMB0GA1Ud +DgQWBBS2d/ppSEefUxLVwuoHMnYH0ZcHGTANBgkqhkiG9w0BAQsFAAOCAQEASvj4 +sAPmLGd75JR3Y8xuTPl9Dg3cyLk1uXBPY/ok+myDjEedO2Pzmvl2MpWRsXe8rJq+ +seQxIcaBlVZaDrHC1LGmWazxY8u4TB1ZkErvkBYoH1quEPuBUDgMbMzxPcP1Y+Oz +4yHJJDnp/RVmRvQbEdBNc6N9Rvk97ahfYtTxP/jgdFcrGJ2BtMQo2pSXpXDrrB2+ +BxHw1dvd5Yzw1TKwg+ZX4o+/vqGqvz0dtdQ46tewXDpPaj+PwGZsY6rp2aQW9IHR +lRQOfc2VNNnSj3BzgXucfr2YYdhFh5iQxeuGMMY1v/D/w1WIg0vvBZIGcfK4mJO3 +7M2CYfE45k+XmCpajQ== +-----END CERTIFICATE----- + +# Issuer: CN=VeriSign Class 3 Public Primary Certification Authority - G4 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2007 VeriSign, Inc. - For authorized use only +# Subject: CN=VeriSign Class 3 Public Primary Certification Authority - G4 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2007 VeriSign, Inc. - For authorized use only +# Label: "VeriSign Class 3 Public Primary Certification Authority - G4" +# Serial: 63143484348153506665311985501458640051 +# MD5 Fingerprint: 3a:52:e1:e7:fd:6f:3a:e3:6f:f3:6f:99:1b:f9:22:41 +# SHA1 Fingerprint: 22:d5:d8:df:8f:02:31:d1:8d:f7:9d:b7:cf:8a:2d:64:c9:3f:6c:3a +# SHA256 Fingerprint: 69:dd:d7:ea:90:bb:57:c9:3e:13:5d:c8:5e:a6:fc:d5:48:0b:60:32:39:bd:c4:54:fc:75:8b:2a:26:cf:7f:79 +-----BEGIN CERTIFICATE----- +MIIDhDCCAwqgAwIBAgIQL4D+I4wOIg9IZxIokYesszAKBggqhkjOPQQDAzCByjEL +MAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQLExZW +ZXJpU2lnbiBUcnVzdCBOZXR3b3JrMTowOAYDVQQLEzEoYykgMjAwNyBWZXJpU2ln +biwgSW5jLiAtIEZvciBhdXRob3JpemVkIHVzZSBvbmx5MUUwQwYDVQQDEzxWZXJp +U2lnbiBDbGFzcyAzIFB1YmxpYyBQcmltYXJ5IENlcnRpZmljYXRpb24gQXV0aG9y +aXR5IC0gRzQwHhcNMDcxMTA1MDAwMDAwWhcNMzgwMTE4MjM1OTU5WjCByjELMAkG +A1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQLExZWZXJp +U2lnbiBUcnVzdCBOZXR3b3JrMTowOAYDVQQLEzEoYykgMjAwNyBWZXJpU2lnbiwg +SW5jLiAtIEZvciBhdXRob3JpemVkIHVzZSBvbmx5MUUwQwYDVQQDEzxWZXJpU2ln +biBDbGFzcyAzIFB1YmxpYyBQcmltYXJ5IENlcnRpZmljYXRpb24gQXV0aG9yaXR5 +IC0gRzQwdjAQBgcqhkjOPQIBBgUrgQQAIgNiAASnVnp8Utpkmw4tXNherJI9/gHm +GUo9FANL+mAnINmDiWn6VMaaGF5VKmTeBvaNSjutEDxlPZCIBIngMGGzrl0Bp3ve +fLK+ymVhAIau2o970ImtTR1ZmkGxvEeA3J5iw/mjgbIwga8wDwYDVR0TAQH/BAUw +AwEB/zAOBgNVHQ8BAf8EBAMCAQYwbQYIKwYBBQUHAQwEYTBfoV2gWzBZMFcwVRYJ +aW1hZ2UvZ2lmMCEwHzAHBgUrDgMCGgQUj+XTGoasjY5rw8+AatRIGCx7GS4wJRYj +aHR0cDovL2xvZ28udmVyaXNpZ24uY29tL3ZzbG9nby5naWYwHQYDVR0OBBYEFLMW +kf3upm7ktS5Jj4d4gYDs5bG1MAoGCCqGSM49BAMDA2gAMGUCMGYhDBgmYFo4e1ZC +4Kf8NoRRkSAsdk1DPcQdhCPQrNZ8NQbOzWm9kA3bbEhCHQ6qQgIxAJw9SDkjOVga +FRJZap7v1VmyHVIsmXHNxynfGyphe3HR3vPA5Q06Sqotp9iGKt0uEA== +-----END CERTIFICATE----- + +# Issuer: CN=NetLock Arany (Class Gold) F\u0151tan\xfas\xedtv\xe1ny O=NetLock Kft. OU=Tan\xfas\xedtv\xe1nykiad\xf3k (Certification Services) +# Subject: CN=NetLock Arany (Class Gold) F\u0151tan\xfas\xedtv\xe1ny O=NetLock Kft. OU=Tan\xfas\xedtv\xe1nykiad\xf3k (Certification Services) +# Label: "NetLock Arany (Class Gold) F\u0151tan\xfas\xedtv\xe1ny" +# Serial: 80544274841616 +# MD5 Fingerprint: c5:a1:b7:ff:73:dd:d6:d7:34:32:18:df:fc:3c:ad:88 +# SHA1 Fingerprint: 06:08:3f:59:3f:15:a1:04:a0:69:a4:6b:a9:03:d0:06:b7:97:09:91 +# SHA256 Fingerprint: 6c:61:da:c3:a2:de:f0:31:50:6b:e0:36:d2:a6:fe:40:19:94:fb:d1:3d:f9:c8:d4:66:59:92:74:c4:46:ec:98 +-----BEGIN CERTIFICATE----- +MIIEFTCCAv2gAwIBAgIGSUEs5AAQMA0GCSqGSIb3DQEBCwUAMIGnMQswCQYDVQQG +EwJIVTERMA8GA1UEBwwIQnVkYXBlc3QxFTATBgNVBAoMDE5ldExvY2sgS2Z0LjE3 +MDUGA1UECwwuVGFuw7pzw610dsOhbnlraWFkw7NrIChDZXJ0aWZpY2F0aW9uIFNl +cnZpY2VzKTE1MDMGA1UEAwwsTmV0TG9jayBBcmFueSAoQ2xhc3MgR29sZCkgRsWR +dGFuw7pzw610dsOhbnkwHhcNMDgxMjExMTUwODIxWhcNMjgxMjA2MTUwODIxWjCB +pzELMAkGA1UEBhMCSFUxETAPBgNVBAcMCEJ1ZGFwZXN0MRUwEwYDVQQKDAxOZXRM +b2NrIEtmdC4xNzA1BgNVBAsMLlRhbsO6c8OtdHbDoW55a2lhZMOzayAoQ2VydGlm +aWNhdGlvbiBTZXJ2aWNlcykxNTAzBgNVBAMMLE5ldExvY2sgQXJhbnkgKENsYXNz 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O=Staat der Nederlanden +# Subject: CN=Staat der Nederlanden Root CA - G2 O=Staat der Nederlanden +# Label: "Staat der Nederlanden Root CA - G2" +# Serial: 10000012 +# MD5 Fingerprint: 7c:a5:0f:f8:5b:9a:7d:6d:30:ae:54:5a:e3:42:a2:8a +# SHA1 Fingerprint: 59:af:82:79:91:86:c7:b4:75:07:cb:cf:03:57:46:eb:04:dd:b7:16 +# SHA256 Fingerprint: 66:8c:83:94:7d:a6:3b:72:4b:ec:e1:74:3c:31:a0:e6:ae:d0:db:8e:c5:b3:1b:e3:77:bb:78:4f:91:b6:71:6f +-----BEGIN CERTIFICATE----- +MIIFyjCCA7KgAwIBAgIEAJiWjDANBgkqhkiG9w0BAQsFADBaMQswCQYDVQQGEwJO +TDEeMBwGA1UECgwVU3RhYXQgZGVyIE5lZGVybGFuZGVuMSswKQYDVQQDDCJTdGFh +dCBkZXIgTmVkZXJsYW5kZW4gUm9vdCBDQSAtIEcyMB4XDTA4MDMyNjExMTgxN1oX +DTIwMDMyNTExMDMxMFowWjELMAkGA1UEBhMCTkwxHjAcBgNVBAoMFVN0YWF0IGRl +ciBOZWRlcmxhbmRlbjErMCkGA1UEAwwiU3RhYXQgZGVyIE5lZGVybGFuZGVuIFJv +b3QgQ0EgLSBHMjCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAMVZ5291 +qj5LnLW4rJ4L5PnZyqtdj7U5EILXr1HgO+EASGrP2uEGQxGZqhQlEq0i6ABtQ8Sp +uOUfiUtnvWFI7/3S4GCI5bkYYCjDdyutsDeqN95kWSpGV+RLufg3fNU254DBtvPU 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Technologies, Inc. +# Label: "Starfield Root Certificate Authority - G2" +# Serial: 0 +# MD5 Fingerprint: d6:39:81:c6:52:7e:96:69:fc:fc:ca:66:ed:05:f2:96 +# SHA1 Fingerprint: b5:1c:06:7c:ee:2b:0c:3d:f8:55:ab:2d:92:f4:fe:39:d4:e7:0f:0e +# SHA256 Fingerprint: 2c:e1:cb:0b:f9:d2:f9:e1:02:99:3f:be:21:51:52:c3:b2:dd:0c:ab:de:1c:68:e5:31:9b:83:91:54:db:b7:f5 +-----BEGIN CERTIFICATE----- +MIID3TCCAsWgAwIBAgIBADANBgkqhkiG9w0BAQsFADCBjzELMAkGA1UEBhMCVVMx +EDAOBgNVBAgTB0FyaXpvbmExEzARBgNVBAcTClNjb3R0c2RhbGUxJTAjBgNVBAoT +HFN0YXJmaWVsZCBUZWNobm9sb2dpZXMsIEluYy4xMjAwBgNVBAMTKVN0YXJmaWVs +ZCBSb290IENlcnRpZmljYXRlIEF1dGhvcml0eSAtIEcyMB4XDTA5MDkwMTAwMDAw +MFoXDTM3MTIzMTIzNTk1OVowgY8xCzAJBgNVBAYTAlVTMRAwDgYDVQQIEwdBcml6 +b25hMRMwEQYDVQQHEwpTY290dHNkYWxlMSUwIwYDVQQKExxTdGFyZmllbGQgVGVj +aG5vbG9naWVzLCBJbmMuMTIwMAYDVQQDEylTdGFyZmllbGQgUm9vdCBDZXJ0aWZp +Y2F0ZSBBdXRob3JpdHkgLSBHMjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoC +ggEBAL3twQP89o/8ArFvW59I2Z154qK3A2FWGMNHttfKPTUuiUP3oWmb3ooa/RMg 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Label: "Starfield Services Root Certificate Authority - G2" +# Serial: 0 +# MD5 Fingerprint: 17:35:74:af:7b:61:1c:eb:f4:f9:3c:e2:ee:40:f9:a2 +# SHA1 Fingerprint: 92:5a:8f:8d:2c:6d:04:e0:66:5f:59:6a:ff:22:d8:63:e8:25:6f:3f +# SHA256 Fingerprint: 56:8d:69:05:a2:c8:87:08:a4:b3:02:51:90:ed:cf:ed:b1:97:4a:60:6a:13:c6:e5:29:0f:cb:2a:e6:3e:da:b5 +-----BEGIN CERTIFICATE----- +MIID7zCCAtegAwIBAgIBADANBgkqhkiG9w0BAQsFADCBmDELMAkGA1UEBhMCVVMx +EDAOBgNVBAgTB0FyaXpvbmExEzARBgNVBAcTClNjb3R0c2RhbGUxJTAjBgNVBAoT +HFN0YXJmaWVsZCBUZWNobm9sb2dpZXMsIEluYy4xOzA5BgNVBAMTMlN0YXJmaWVs +ZCBTZXJ2aWNlcyBSb290IENlcnRpZmljYXRlIEF1dGhvcml0eSAtIEcyMB4XDTA5 +MDkwMTAwMDAwMFoXDTM3MTIzMTIzNTk1OVowgZgxCzAJBgNVBAYTAlVTMRAwDgYD +VQQIEwdBcml6b25hMRMwEQYDVQQHEwpTY290dHNkYWxlMSUwIwYDVQQKExxTdGFy +ZmllbGQgVGVjaG5vbG9naWVzLCBJbmMuMTswOQYDVQQDEzJTdGFyZmllbGQgU2Vy +dmljZXMgUm9vdCBDZXJ0aWZpY2F0ZSBBdXRob3JpdHkgLSBHMjCCASIwDQYJKoZI +hvcNAQEBBQADggEPADCCAQoCggEBANUMOsQq+U7i9b4Zl1+OiFOxHz/Lz58gE20p 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MD5 Fingerprint: 82:92:ba:5b:ef:cd:8a:6f:a6:3d:55:f9:84:f6:d6:b7 +# SHA1 Fingerprint: f9:b5:b6:32:45:5f:9c:be:ec:57:5f:80:dc:e9:6e:2c:c7:b2:78:b7 +# SHA256 Fingerprint: 03:76:ab:1d:54:c5:f9:80:3c:e4:b2:e2:01:a0:ee:7e:ef:7b:57:b6:36:e8:a9:3c:9b:8d:48:60:c9:6f:5f:a7 +-----BEGIN CERTIFICATE----- +MIIDTDCCAjSgAwIBAgIId3cGJyapsXwwDQYJKoZIhvcNAQELBQAwRDELMAkGA1UE +BhMCVVMxFDASBgNVBAoMC0FmZmlybVRydXN0MR8wHQYDVQQDDBZBZmZpcm1UcnVz +dCBDb21tZXJjaWFsMB4XDTEwMDEyOTE0MDYwNloXDTMwMTIzMTE0MDYwNlowRDEL +MAkGA1UEBhMCVVMxFDASBgNVBAoMC0FmZmlybVRydXN0MR8wHQYDVQQDDBZBZmZp +cm1UcnVzdCBDb21tZXJjaWFsMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC +AQEA9htPZwcroRX1BiLLHwGy43NFBkRJLLtJJRTWzsO3qyxPxkEylFf6EqdbDuKP +Hx6GGaeqtS25Xw2Kwq+FNXkyLbscYjfysVtKPcrNcV/pQr6U6Mje+SJIZMblq8Yr +ba0F8PrVC8+a5fBQpIs7R6UjW3p6+DM/uO+Zl+MgwdYoic+U+7lF7eNAFxHUdPAL +MeIrJmqbTFeurCA+ukV6BfO9m2kVrn1OIGPENXY6BwLJN/3HR+7o8XYdcxXyl6S1 +yHp52UKqK39c/s4mT6NmgTWvRLpUHhwwMmWd5jyTXlBOeuM61G7MGvv50jeuJCqr 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CERTIFICATE----- +MIIDTDCCAjSgAwIBAgIIfE8EORzUmS0wDQYJKoZIhvcNAQEFBQAwRDELMAkGA1UE +BhMCVVMxFDASBgNVBAoMC0FmZmlybVRydXN0MR8wHQYDVQQDDBZBZmZpcm1UcnVz +dCBOZXR3b3JraW5nMB4XDTEwMDEyOTE0MDgyNFoXDTMwMTIzMTE0MDgyNFowRDEL +MAkGA1UEBhMCVVMxFDASBgNVBAoMC0FmZmlybVRydXN0MR8wHQYDVQQDDBZBZmZp +cm1UcnVzdCBOZXR3b3JraW5nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC +AQEAtITMMxcua5Rsa2FSoOujz3mUTOWUgJnLVWREZY9nZOIG41w3SfYvm4SEHi3y +YJ0wTsyEheIszx6e/jarM3c1RNg1lho9Nuh6DtjVR6FqaYvZ/Ls6rnla1fTWcbua +kCNrmreIdIcMHl+5ni36q1Mr3Lt2PpNMCAiMHqIjHNRqrSK6mQEubWXLviRmVSRL +QESxG9fhwoXA3hA/Pe24/PHxI1Pcv2WXb9n5QHGNfb2V1M6+oF4nI979ptAmDgAp +6zxG8D1gvz9Q0twmQVGeFDdCBKNwV6gbh+0t+nvujArjqWaJGctB+d1ENmHP4ndG +yH329JKBNv3bNPFyfvMMFr20FQIDAQABo0IwQDAdBgNVHQ4EFgQUBx/S55zawm6i +QLSwelAQUHTEyL0wDwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMCAQYwDQYJ +KoZIhvcNAQEFBQADggEBAIlXshZ6qML91tmbmzTCnLQyFE2npN/svqe++EPbkTfO +tDIuUFUaNU52Q3Eg75N3ThVwLofDwR1t3Mu1J9QsVtFSUzpE0nPIxBsFZVpikpzu 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OU=Certum Certification Authority +# Subject: CN=Certum Trusted Network CA O=Unizeto Technologies S.A. OU=Certum Certification Authority +# Label: "Certum Trusted Network CA" +# Serial: 279744 +# MD5 Fingerprint: d5:e9:81:40:c5:18:69:fc:46:2c:89:75:62:0f:aa:78 +# SHA1 Fingerprint: 07:e0:32:e0:20:b7:2c:3f:19:2f:06:28:a2:59:3a:19:a7:0f:06:9e +# SHA256 Fingerprint: 5c:58:46:8d:55:f5:8e:49:7e:74:39:82:d2:b5:00:10:b6:d1:65:37:4a:cf:83:a7:d4:a3:2d:b7:68:c4:40:8e +-----BEGIN CERTIFICATE----- +MIIDuzCCAqOgAwIBAgIDBETAMA0GCSqGSIb3DQEBBQUAMH4xCzAJBgNVBAYTAlBM +MSIwIAYDVQQKExlVbml6ZXRvIFRlY2hub2xvZ2llcyBTLkEuMScwJQYDVQQLEx5D +ZXJ0dW0gQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkxIjAgBgNVBAMTGUNlcnR1bSBU +cnVzdGVkIE5ldHdvcmsgQ0EwHhcNMDgxMDIyMTIwNzM3WhcNMjkxMjMxMTIwNzM3 +WjB+MQswCQYDVQQGEwJQTDEiMCAGA1UEChMZVW5pemV0byBUZWNobm9sb2dpZXMg +Uy5BLjEnMCUGA1UECxMeQ2VydHVtIENlcnRpZmljYXRpb24gQXV0aG9yaXR5MSIw +IAYDVQQDExlDZXJ0dW0gVHJ1c3RlZCBOZXR3b3JrIENBMIIBIjANBgkqhkiG9w0B +AQEFAAOCAQ8AMIIBCgKCAQEA4/t9o3K6wvDJFIf1awFO4W5AB7ptJ11/91sts1rH +UV+rpDKmYYe2bg+G0jACl/jXaVehGDldamR5xgFZrDwxSjh80gTSSyjoIF87B6LM +TXPb865Px1bVWqeWifrzq2jUI4ZZJ88JJ7ysbnKDHDBy3+Ci6dLhdHUZvSqeexVU +BBvXQzmtVSjF4hq79MDkrjhJM8x2hZ85RdKknvISjFH4fOQtf/WsX+sWn7Et0brM +kUJ3TCXJkDhv2/DM+44el1k+1WBO5gUo7Ul5E0u6SNsv+XLTOcr+H9g0cvW0QM8x +AcPs3hEtF10fuFDRXhmnad4HMyjKUJX5p1TLVIZQRan5SQIDAQABo0IwQDAPBgNV +HRMBAf8EBTADAQH/MB0GA1UdDgQWBBQIds3LB/8k9sXN7buQvOKEN0Z19zAOBgNV +HQ8BAf8EBAMCAQYwDQYJKoZIhvcNAQEFBQADggEBAKaorSLOAT2mo/9i0Eidi15y +sHhE49wcrwn9I0j6vSrEuVUEtRCjjSfeC4Jj0O7eDDd5QVsisrCaQVymcODU0HfL +I9MA4GxWL+FpDQ3Zqr8hgVDZBqWo/5U30Kr+4rP1mS1FhIrlQgnXdAIv94nYmem8 +J9RHjboNRhx3zxSkHLmkMcScKHQDNP8zGSal6Q10tz6XxnboJ5ajZt3hrvJBW8qY +VoNzcOSGGtIxQbovvi0TWnZvTuhOgQ4/WwMioBK+ZlgRSssDxLQqKi2WF+A5VLxI +03YnnZotBqbJ7DnSq9ufmgsnAjUpsUCV5/nonFWIGUbWtzT1fs45mtk48VH3Tyw= +-----END CERTIFICATE----- + +# Issuer: CN=TWCA Root Certification Authority O=TAIWAN-CA OU=Root CA +# Subject: CN=TWCA Root Certification Authority O=TAIWAN-CA OU=Root CA +# Label: "TWCA Root Certification Authority" +# Serial: 1 +# MD5 Fingerprint: aa:08:8f:f6:f9:7b:b7:f2:b1:a7:1e:9b:ea:ea:bd:79 +# SHA1 Fingerprint: cf:9e:87:6d:d3:eb:fc:42:26:97:a3:b5:a3:7a:a0:76:a9:06:23:48 +# SHA256 Fingerprint: bf:d8:8f:e1:10:1c:41:ae:3e:80:1b:f8:be:56:35:0e:e9:ba:d1:a6:b9:bd:51:5e:dc:5c:6d:5b:87:11:ac:44 +-----BEGIN CERTIFICATE----- +MIIDezCCAmOgAwIBAgIBATANBgkqhkiG9w0BAQUFADBfMQswCQYDVQQGEwJUVzES +MBAGA1UECgwJVEFJV0FOLUNBMRAwDgYDVQQLDAdSb290IENBMSowKAYDVQQDDCFU +V0NBIFJvb3QgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwHhcNMDgwODI4MDcyNDMz +WhcNMzAxMjMxMTU1OTU5WjBfMQswCQYDVQQGEwJUVzESMBAGA1UECgwJVEFJV0FO +LUNBMRAwDgYDVQQLDAdSb290IENBMSowKAYDVQQDDCFUV0NBIFJvb3QgQ2VydGlm +aWNhdGlvbiBBdXRob3JpdHkwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIB +AQCwfnK4pAOU5qfeCTiRShFAh6d8WWQUe7UREN3+v9XAu1bihSX0NXIP+FPQQeFE +AcK0HMMxQhZHhTMidrIKbw/lJVBPhYa+v5guEGcevhEFhgWQxFnQfHgQsIBct+HH +K3XLfJ+utdGdIzdjp9xCoi2SBBtQwXu4PhvJVgSLL1KbralW6cH/ralYhzC2gfeX +RfwZVzsrb+RH9JlF/h3x+JejiB03HFyP4HYlmlD4oFT/RJB2I9IyxsOrBr/8+7/z +rX2SYgJbKdM1o5OaQ2RgXbL6Mv87BK9NQGr5x+PvI/1ry+UPizgN7gr8/g+YnzAx +3WxSZfmLgb4i4RxYA7qRG4kHAgMBAAGjQjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNV +HRMBAf8EBTADAQH/MB0GA1UdDgQWBBRqOFsmjd6LWvJPelSDGRjjCDWmujANBgkq +hkiG9w0BAQUFAAOCAQEAPNV3PdrfibqHDAhUaiBQkr6wQT25JmSDCi/oQMCXKCeC +MErJk/9q56YAf4lCmtYR5VPOL8zy2gXE/uJQxDqGfczafhAJO5I1KlOy/usrBdls +XebQ79NqZp4VKIV66IIArB6nCWlWQtNoURi+VJq/REG6Sb4gumlc7rh3zc5sH62D +lhh9DrUUOYTxKOkto557HnpyWoOzeW/vtPzQCqVYT0bf+215WfKEIlKuD8z7fDvn +aspHYcN6+NOSBB+4IIThNlQWx0DeO4pz3N/GCUzf7Nr/1FNCocnyYh0igzyXxfkZ +YiesZSLX0zzG5Y6yU8xJzrww/nsOM5D77dIUkR8Hrw== +-----END CERTIFICATE----- + +# Issuer: O=SECOM Trust Systems CO.,LTD. OU=Security Communication RootCA2 +# Subject: O=SECOM Trust Systems CO.,LTD. OU=Security Communication RootCA2 +# Label: "Security Communication RootCA2" +# Serial: 0 +# MD5 Fingerprint: 6c:39:7d:a4:0e:55:59:b2:3f:d6:41:b1:12:50:de:43 +# SHA1 Fingerprint: 5f:3b:8c:f2:f8:10:b3:7d:78:b4:ce:ec:19:19:c3:73:34:b9:c7:74 +# SHA256 Fingerprint: 51:3b:2c:ec:b8:10:d4:cd:e5:dd:85:39:1a:df:c6:c2:dd:60:d8:7b:b7:36:d2:b5:21:48:4a:a4:7a:0e:be:f6 +-----BEGIN CERTIFICATE----- +MIIDdzCCAl+gAwIBAgIBADANBgkqhkiG9w0BAQsFADBdMQswCQYDVQQGEwJKUDEl +MCMGA1UEChMcU0VDT00gVHJ1c3QgU3lzdGVtcyBDTy4sTFRELjEnMCUGA1UECxMe +U2VjdXJpdHkgQ29tbXVuaWNhdGlvbiBSb290Q0EyMB4XDTA5MDUyOTA1MDAzOVoX +DTI5MDUyOTA1MDAzOVowXTELMAkGA1UEBhMCSlAxJTAjBgNVBAoTHFNFQ09NIFRy +dXN0IFN5c3RlbXMgQ08uLExURC4xJzAlBgNVBAsTHlNlY3VyaXR5IENvbW11bmlj +YXRpb24gUm9vdENBMjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANAV +OVKxUrO6xVmCxF1SrjpDZYBLx/KWvNs2l9amZIyoXvDjChz335c9S672XewhtUGr +zbl+dp+++T42NKA7wfYxEUV0kz1XgMX5iZnK5atq1LXaQZAQwdbWQonCv/Q4EpVM +VAX3NuRFg3sUZdbcDE3R3n4MqzvEFb46VqZab3ZpUql6ucjrappdUtAtCms1FgkQ +hNBqyjoGADdH5H5XTz+L62e4iKrFvlNVspHEfbmwhRkGeC7bYRr6hfVKkaHnFtWO +ojnflLhwHyg/i/xAXmODPIMqGplrz95Zajv8bxbXH/1KEOtOghY6rCcMU/Gt1SSw +awNQwS08Ft1ENCcadfsCAwEAAaNCMEAwHQYDVR0OBBYEFAqFqXdlBZh8QIH4D5cs +OPEK7DzPMA4GA1UdDwEB/wQEAwIBBjAPBgNVHRMBAf8EBTADAQH/MA0GCSqGSIb3 +DQEBCwUAA4IBAQBMOqNErLlFsceTfsgLCkLfZOoc7llsCLqJX2rKSpWeeo8HxdpF +coJxDjrSzG+ntKEju/Ykn8sX/oymzsLS28yN/HH8AynBbF0zX2S2ZTuJbxh2ePXc +okgfGT+Ok+vx+hfuzU7jBBJV1uXk3fs+BXziHV7Gp7yXT2g69ekuCkO2r1dcYmh8 +t/2jioSgrGK+KwmHNPBqAbubKVY8/gA3zyNs8U6qtnRGEmyR7jTV7JqR50S+kDFy +1UkC9gLl9B/rfNmWVan/7Ir5mUf/NVoCqgTLiluHcSmRvaS0eg29mvVXIwAHIRc/ +SjnRBUkLp7Y3gaVdjKozXoEofKd9J+sAro03 +-----END CERTIFICATE----- + +# Issuer: CN=Hellenic Academic and Research Institutions RootCA 2011 O=Hellenic Academic and Research Institutions Cert. Authority +# Subject: CN=Hellenic Academic and Research Institutions RootCA 2011 O=Hellenic Academic and Research Institutions Cert. Authority +# Label: "Hellenic Academic and Research Institutions RootCA 2011" +# Serial: 0 +# MD5 Fingerprint: 73:9f:4c:4b:73:5b:79:e9:fa:ba:1c:ef:6e:cb:d5:c9 +# SHA1 Fingerprint: fe:45:65:9b:79:03:5b:98:a1:61:b5:51:2e:ac:da:58:09:48:22:4d +# SHA256 Fingerprint: bc:10:4f:15:a4:8b:e7:09:dc:a5:42:a7:e1:d4:b9:df:6f:05:45:27:e8:02:ea:a9:2d:59:54:44:25:8a:fe:71 +-----BEGIN CERTIFICATE----- +MIIEMTCCAxmgAwIBAgIBADANBgkqhkiG9w0BAQUFADCBlTELMAkGA1UEBhMCR1Ix +RDBCBgNVBAoTO0hlbGxlbmljIEFjYWRlbWljIGFuZCBSZXNlYXJjaCBJbnN0aXR1 +dGlvbnMgQ2VydC4gQXV0aG9yaXR5MUAwPgYDVQQDEzdIZWxsZW5pYyBBY2FkZW1p +YyBhbmQgUmVzZWFyY2ggSW5zdGl0dXRpb25zIFJvb3RDQSAyMDExMB4XDTExMTIw +NjEzNDk1MloXDTMxMTIwMTEzNDk1MlowgZUxCzAJBgNVBAYTAkdSMUQwQgYDVQQK +EztIZWxsZW5pYyBBY2FkZW1pYyBhbmQgUmVzZWFyY2ggSW5zdGl0dXRpb25zIENl +cnQuIEF1dGhvcml0eTFAMD4GA1UEAxM3SGVsbGVuaWMgQWNhZGVtaWMgYW5kIFJl +c2VhcmNoIEluc3RpdHV0aW9ucyBSb290Q0EgMjAxMTCCASIwDQYJKoZIhvcNAQEB +BQADggEPADCCAQoCggEBAKlTAOMupvaO+mDYLZU++CwqVE7NuYRhlFhPjz2L5EPz 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2b:9b:9e:e4:7b:6c:1f:00:72:1a:cc:c1:77:79:df:6a +# SHA1 Fingerprint: 59:0d:2d:7d:88:4f:40:2e:61:7e:a5:62:32:17:65:cf:17:d8:94:e9 +# SHA256 Fingerprint: 91:e2:f5:78:8d:58:10:eb:a7:ba:58:73:7d:e1:54:8a:8e:ca:cd:01:45:98:bc:0b:14:3e:04:1b:17:05:25:52 +-----BEGIN CERTIFICATE----- +MIIDwzCCAqugAwIBAgIBATANBgkqhkiG9w0BAQsFADCBgjELMAkGA1UEBhMCREUx +KzApBgNVBAoMIlQtU3lzdGVtcyBFbnRlcnByaXNlIFNlcnZpY2VzIEdtYkgxHzAd +BgNVBAsMFlQtU3lzdGVtcyBUcnVzdCBDZW50ZXIxJTAjBgNVBAMMHFQtVGVsZVNl +YyBHbG9iYWxSb290IENsYXNzIDIwHhcNMDgxMDAxMTA0MDE0WhcNMzMxMDAxMjM1 +OTU5WjCBgjELMAkGA1UEBhMCREUxKzApBgNVBAoMIlQtU3lzdGVtcyBFbnRlcnBy +aXNlIFNlcnZpY2VzIEdtYkgxHzAdBgNVBAsMFlQtU3lzdGVtcyBUcnVzdCBDZW50 +ZXIxJTAjBgNVBAMMHFQtVGVsZVNlYyBHbG9iYWxSb290IENsYXNzIDIwggEiMA0G +CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCqX9obX+hzkeXaXPSi5kfl82hVYAUd +AqSzm1nzHoqvNK38DcLZSBnuaY/JIPwhqgcZ7bBcrGXHX+0CfHt8LRvWurmAwhiC +FoT6ZrAIxlQjgeTNuUk/9k9uN0goOA/FvudocP05l03Sx5iRUKrERLMjfTlH6VJi 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Subject: CN=QuoVadis Root CA 2 G3 O=QuoVadis Limited +# Label: "QuoVadis Root CA 2 G3" +# Serial: 390156079458959257446133169266079962026824725800 +# MD5 Fingerprint: af:0c:86:6e:bf:40:2d:7f:0b:3e:12:50:ba:12:3d:06 +# SHA1 Fingerprint: 09:3c:61:f3:8b:8b:dc:7d:55:df:75:38:02:05:00:e1:25:f5:c8:36 +# SHA256 Fingerprint: 8f:e4:fb:0a:f9:3a:4d:0d:67:db:0b:eb:b2:3e:37:c7:1b:f3:25:dc:bc:dd:24:0e:a0:4d:af:58:b4:7e:18:40 +-----BEGIN CERTIFICATE----- +MIIFYDCCA0igAwIBAgIURFc0JFuBiZs18s64KztbpybwdSgwDQYJKoZIhvcNAQEL +BQAwSDELMAkGA1UEBhMCQk0xGTAXBgNVBAoTEFF1b1ZhZGlzIExpbWl0ZWQxHjAc +BgNVBAMTFVF1b1ZhZGlzIFJvb3QgQ0EgMiBHMzAeFw0xMjAxMTIxODU5MzJaFw00 +MjAxMTIxODU5MzJaMEgxCzAJBgNVBAYTAkJNMRkwFwYDVQQKExBRdW9WYWRpcyBM +aW1pdGVkMR4wHAYDVQQDExVRdW9WYWRpcyBSb290IENBIDIgRzMwggIiMA0GCSqG +SIb3DQEBAQUAA4ICDwAwggIKAoICAQChriWyARjcV4g/Ruv5r+LrI3HimtFhZiFf +qq8nUeVuGxbULX1QsFN3vXg6YOJkApt8hpvWGo6t/x8Vf9WVHhLL5hSEBMHfNrMW +n4rjyduYNM7YMxcoRvynyfDStNVNCXJJ+fKH46nafaF9a7I6JaltUkSs+L5u+9ym 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O=DigiCert Inc OU=www.digicert.com +# Label: "DigiCert Assured ID Root G2" +# Serial: 15385348160840213938643033620894905419 +# MD5 Fingerprint: 92:38:b9:f8:63:24:82:65:2c:57:33:e6:fe:81:8f:9d +# SHA1 Fingerprint: a1:4b:48:d9:43:ee:0a:0e:40:90:4f:3c:e0:a4:c0:91:93:51:5d:3f +# SHA256 Fingerprint: 7d:05:eb:b6:82:33:9f:8c:94:51:ee:09:4e:eb:fe:fa:79:53:a1:14:ed:b2:f4:49:49:45:2f:ab:7d:2f:c1:85 +-----BEGIN CERTIFICATE----- +MIIDljCCAn6gAwIBAgIQC5McOtY5Z+pnI7/Dr5r0SzANBgkqhkiG9w0BAQsFADBl +MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3 +d3cuZGlnaWNlcnQuY29tMSQwIgYDVQQDExtEaWdpQ2VydCBBc3N1cmVkIElEIFJv +b3QgRzIwHhcNMTMwODAxMTIwMDAwWhcNMzgwMTE1MTIwMDAwWjBlMQswCQYDVQQG +EwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3d3cuZGlnaWNl +cnQuY29tMSQwIgYDVQQDExtEaWdpQ2VydCBBc3N1cmVkIElEIFJvb3QgRzIwggEi +MA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDZ5ygvUj82ckmIkzTz+GoeMVSA +n61UQbVH35ao1K+ALbkKz3X9iaV9JPrjIgwrvJUXCzO/GU1BBpAAvQxNEP4Htecc 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15459312981008553731928384953135426796 +# MD5 Fingerprint: 7c:7f:65:31:0c:81:df:8d:ba:3e:99:e2:5c:ad:6e:fb +# SHA1 Fingerprint: f5:17:a2:4f:9a:48:c6:c9:f8:a2:00:26:9f:dc:0f:48:2c:ab:30:89 +# SHA256 Fingerprint: 7e:37:cb:8b:4c:47:09:0c:ab:36:55:1b:a6:f4:5d:b8:40:68:0f:ba:16:6a:95:2d:b1:00:71:7f:43:05:3f:c2 +-----BEGIN CERTIFICATE----- +MIICRjCCAc2gAwIBAgIQC6Fa+h3foLVJRK/NJKBs7DAKBggqhkjOPQQDAzBlMQsw +CQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3d3cu +ZGlnaWNlcnQuY29tMSQwIgYDVQQDExtEaWdpQ2VydCBBc3N1cmVkIElEIFJvb3Qg +RzMwHhcNMTMwODAxMTIwMDAwWhcNMzgwMTE1MTIwMDAwWjBlMQswCQYDVQQGEwJV +UzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3d3cuZGlnaWNlcnQu +Y29tMSQwIgYDVQQDExtEaWdpQ2VydCBBc3N1cmVkIElEIFJvb3QgRzMwdjAQBgcq +hkjOPQIBBgUrgQQAIgNiAAQZ57ysRGXtzbg/WPuNsVepRC0FFfLvC/8QdJ+1YlJf +Zn4f5dwbRXkLzMZTCp2NXQLZqVneAlr2lSoOjThKiknGvMYDOAdfVdp+CW7if17Q +RSAPWXYQ1qAk8C3eNvJsKTmjQjBAMA8GA1UdEwEB/wQFMAMBAf8wDgYDVR0PAQH/ +BAQDAgGGMB0GA1UdDgQWBBTL0L2p4ZgFUaFNN6KDec6NHSrkhDAKBggqhkjOPQQD 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+-----END CERTIFICATE----- + +# Issuer: CN=DigiCert Global Root G3 O=DigiCert Inc OU=www.digicert.com +# Subject: CN=DigiCert Global Root G3 O=DigiCert Inc OU=www.digicert.com +# Label: "DigiCert Global Root G3" +# Serial: 7089244469030293291760083333884364146 +# MD5 Fingerprint: f5:5d:a4:50:a5:fb:28:7e:1e:0f:0d:cc:96:57:56:ca +# SHA1 Fingerprint: 7e:04:de:89:6a:3e:66:6d:00:e6:87:d3:3f:fa:d9:3b:e8:3d:34:9e +# SHA256 Fingerprint: 31:ad:66:48:f8:10:41:38:c7:38:f3:9e:a4:32:01:33:39:3e:3a:18:cc:02:29:6e:f9:7c:2a:c9:ef:67:31:d0 +-----BEGIN CERTIFICATE----- +MIICPzCCAcWgAwIBAgIQBVVWvPJepDU1w6QP1atFcjAKBggqhkjOPQQDAzBhMQsw +CQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3d3cu +ZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBHMzAe +Fw0xMzA4MDExMjAwMDBaFw0zODAxMTUxMjAwMDBaMGExCzAJBgNVBAYTAlVTMRUw +EwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5jb20x +IDAeBgNVBAMTF0RpZ2lDZXJ0IEdsb2JhbCBSb290IEczMHYwEAYHKoZIzj0CAQYF 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+ +# Issuer: CN=COMODO RSA Certification Authority O=COMODO CA Limited +# Subject: CN=COMODO RSA Certification Authority O=COMODO CA Limited +# Label: "COMODO RSA Certification Authority" +# Serial: 101909084537582093308941363524873193117 +# MD5 Fingerprint: 1b:31:b0:71:40:36:cc:14:36:91:ad:c4:3e:fd:ec:18 +# SHA1 Fingerprint: af:e5:d2:44:a8:d1:19:42:30:ff:47:9f:e2:f8:97:bb:cd:7a:8c:b4 +# SHA256 Fingerprint: 52:f0:e1:c4:e5:8e:c6:29:29:1b:60:31:7f:07:46:71:b8:5d:7e:a8:0d:5b:07:27:34:63:53:4b:32:b4:02:34 +-----BEGIN CERTIFICATE----- +MIIF2DCCA8CgAwIBAgIQTKr5yttjb+Af907YWwOGnTANBgkqhkiG9w0BAQwFADCB +hTELMAkGA1UEBhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4G +A1UEBxMHU2FsZm9yZDEaMBgGA1UEChMRQ09NT0RPIENBIExpbWl0ZWQxKzApBgNV +BAMTIkNPTU9ETyBSU0EgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwHhcNMTAwMTE5 +MDAwMDAwWhcNMzgwMTE4MjM1OTU5WjCBhTELMAkGA1UEBhMCR0IxGzAZBgNVBAgT +EkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4GA1UEBxMHU2FsZm9yZDEaMBgGA1UEChMR +Q09NT0RPIENBIExpbWl0ZWQxKzApBgNVBAMTIkNPTU9ETyBSU0EgQ2VydGlmaWNh 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2b:8f:1b:57:33:0d:bb:a2:d0:7a:6c:51:f7:0e:e9:0d:da:b9:ad:8e +# SHA256 Fingerprint: e7:93:c9:b0:2f:d8:aa:13:e2:1c:31:22:8a:cc:b0:81:19:64:3b:74:9c:89:89:64:b1:74:6d:46:c3:d4:cb:d2 +-----BEGIN CERTIFICATE----- +MIIF3jCCA8agAwIBAgIQAf1tMPyjylGoG7xkDjUDLTANBgkqhkiG9w0BAQwFADCB +iDELMAkGA1UEBhMCVVMxEzARBgNVBAgTCk5ldyBKZXJzZXkxFDASBgNVBAcTC0pl +cnNleSBDaXR5MR4wHAYDVQQKExVUaGUgVVNFUlRSVVNUIE5ldHdvcmsxLjAsBgNV +BAMTJVVTRVJUcnVzdCBSU0EgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwHhcNMTAw +MjAxMDAwMDAwWhcNMzgwMTE4MjM1OTU5WjCBiDELMAkGA1UEBhMCVVMxEzARBgNV +BAgTCk5ldyBKZXJzZXkxFDASBgNVBAcTC0plcnNleSBDaXR5MR4wHAYDVQQKExVU +aGUgVVNFUlRSVVNUIE5ldHdvcmsxLjAsBgNVBAMTJVVTRVJUcnVzdCBSU0EgQ2Vy +dGlmaWNhdGlvbiBBdXRob3JpdHkwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIK +AoICAQCAEmUXNg7D2wiz0KxXDXbtzSfTTK1Qg2HiqiBNCS1kCdzOiZ/MPans9s/B +3PHTsdZ7NygRK0faOca8Ohm0X6a9fZ2jY0K2dvKpOyuR+OJv0OwWIJAJPuLodMkY +tJHUYmTbf6MG8YgYapAiPLz+E/CHFHv25B+O1ORRxhFnRghRy4YUVD+8M/5+bJz/ +Fp0YvVGONaanZshyZ9shZrHUm3gDwFA66Mzw3LyeTP6vBZY1H1dat//O+T23LLb2 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Root CA - R4 +# Label: "GlobalSign ECC Root CA - R4" +# Serial: 14367148294922964480859022125800977897474 +# MD5 Fingerprint: 20:f0:27:68:d1:7e:a0:9d:0e:e6:2a:ca:df:5c:89:8e +# SHA1 Fingerprint: 69:69:56:2e:40:80:f4:24:a1:e7:19:9f:14:ba:f3:ee:58:ab:6a:bb +# SHA256 Fingerprint: be:c9:49:11:c2:95:56:76:db:6c:0a:55:09:86:d7:6e:3b:a0:05:66:7c:44:2c:97:62:b4:fb:b7:73:de:22:8c +-----BEGIN CERTIFICATE----- +MIIB4TCCAYegAwIBAgIRKjikHJYKBN5CsiilC+g0mAIwCgYIKoZIzj0EAwIwUDEk +MCIGA1UECxMbR2xvYmFsU2lnbiBFQ0MgUm9vdCBDQSAtIFI0MRMwEQYDVQQKEwpH +bG9iYWxTaWduMRMwEQYDVQQDEwpHbG9iYWxTaWduMB4XDTEyMTExMzAwMDAwMFoX +DTM4MDExOTAzMTQwN1owUDEkMCIGA1UECxMbR2xvYmFsU2lnbiBFQ0MgUm9vdCBD +QSAtIFI0MRMwEQYDVQQKEwpHbG9iYWxTaWduMRMwEQYDVQQDEwpHbG9iYWxTaWdu +MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEuMZ5049sJQ6fLjkZHAOkrprlOQcJ +FspjsbmG+IpXwVfOQvpzofdlQv8ewQCybnMO/8ch5RikqtlxP6jUuc6MHaNCMEAw +DgYDVR0PAQH/BAQDAgEGMA8GA1UdEwEB/wQFMAMBAf8wHQYDVR0OBBYEFFSwe61F +uOJAf/sKbvu+M8k8o4TVMAoGCCqGSM49BAMCA0gAMEUCIQDckqGgE6bPA7DmxCGX 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Nederlanden EV Root CA O=Staat der Nederlanden +# Subject: CN=Staat der Nederlanden EV Root CA O=Staat der Nederlanden +# Label: "Staat der Nederlanden EV Root CA" +# Serial: 10000013 +# MD5 Fingerprint: fc:06:af:7b:e8:1a:f1:9a:b4:e8:d2:70:1f:c0:f5:ba +# SHA1 Fingerprint: 76:e2:7e:c1:4f:db:82:c1:c0:a6:75:b5:05:be:3d:29:b4:ed:db:bb +# SHA256 Fingerprint: 4d:24:91:41:4c:fe:95:67:46:ec:4c:ef:a6:cf:6f:72:e2:8a:13:29:43:2f:9d:8a:90:7a:c4:cb:5d:ad:c1:5a +-----BEGIN CERTIFICATE----- +MIIFcDCCA1igAwIBAgIEAJiWjTANBgkqhkiG9w0BAQsFADBYMQswCQYDVQQGEwJO +TDEeMBwGA1UECgwVU3RhYXQgZGVyIE5lZGVybGFuZGVuMSkwJwYDVQQDDCBTdGFh +dCBkZXIgTmVkZXJsYW5kZW4gRVYgUm9vdCBDQTAeFw0xMDEyMDgxMTE5MjlaFw0y +MjEyMDgxMTEwMjhaMFgxCzAJBgNVBAYTAk5MMR4wHAYDVQQKDBVTdGFhdCBkZXIg +TmVkZXJsYW5kZW4xKTAnBgNVBAMMIFN0YWF0IGRlciBOZWRlcmxhbmRlbiBFViBS +b290IENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA48d+ifkkSzrS +M4M1LGns3Amk41GoJSt5uAg94JG6hIXGhaTK5skuU6TJJB79VWZxXSzFYGgEt9nC 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CERTIFICATE----- +MIIFYDCCA0igAwIBAgIQCgFCgAAAAUUjyES1AAAAAjANBgkqhkiG9w0BAQsFADBK +MQswCQYDVQQGEwJVUzESMBAGA1UEChMJSWRlblRydXN0MScwJQYDVQQDEx5JZGVu +VHJ1c3QgQ29tbWVyY2lhbCBSb290IENBIDEwHhcNMTQwMTE2MTgxMjIzWhcNMzQw +MTE2MTgxMjIzWjBKMQswCQYDVQQGEwJVUzESMBAGA1UEChMJSWRlblRydXN0MScw +JQYDVQQDEx5JZGVuVHJ1c3QgQ29tbWVyY2lhbCBSb290IENBIDEwggIiMA0GCSqG +SIb3DQEBAQUAA4ICDwAwggIKAoICAQCnUBneP5k91DNG8W9RYYKyqU+PZ4ldhNlT +3Qwo2dfw/66VQ3KZ+bVdfIrBQuExUHTRgQ18zZshq0PirK1ehm7zCYofWjK9ouuU ++ehcCuz/mNKvcbO0U59Oh++SvL3sTzIwiEsXXlfEU8L2ApeN2WIrvyQfYo3fw7gp +S0l4PJNgiCL8mdo2yMKi1CxUAGc1bnO/AljwpN3lsKImesrgNqUZFvX9t++uP0D1 +bVoE/c40yiTcdCMbXTMTEl3EASX2MN0CXZ/g1Ue9tOsbobtJSdifWwLziuQkkORi +T0/Br4sOdBeo0XKIanoBScy0RnnGF7HamB4HWfp1IYVl3ZBWzvurpWCdxJ35UrCL +vYf5jysjCiN2O/cz4ckA82n5S6LgTrx+kzmEB/dEcH7+B1rlsazRGMzyNeVJSQjK +Vsk9+w8YfYs7wRPCTY/JTw436R+hDmrfYi7LNQZReSzIJTj0+kuniVyc0uMNOYZK +dHzVWYfCP04MXFL0PfdSgvHqo6z9STQaKPNBiDoT7uje/5kdX7rL6B7yuVBgwDHT 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OU=See www.entrust.net/legal-terms/(c) 2009 Entrust, Inc. - for authorized use only +# Subject: CN=Entrust Root Certification Authority - G2 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2009 Entrust, Inc. - for authorized use only +# Label: "Entrust Root Certification Authority - G2" +# Serial: 1246989352 +# MD5 Fingerprint: 4b:e2:c9:91:96:65:0c:f4:0e:5a:93:92:a0:0a:fe:b2 +# SHA1 Fingerprint: 8c:f4:27:fd:79:0c:3a:d1:66:06:8d:e8:1e:57:ef:bb:93:22:72:d4 +# SHA256 Fingerprint: 43:df:57:74:b0:3e:7f:ef:5f:e4:0d:93:1a:7b:ed:f1:bb:2e:6b:42:73:8c:4e:6d:38:41:10:3d:3a:a7:f3:39 +-----BEGIN CERTIFICATE----- +MIIEPjCCAyagAwIBAgIESlOMKDANBgkqhkiG9w0BAQsFADCBvjELMAkGA1UEBhMC +VVMxFjAUBgNVBAoTDUVudHJ1c3QsIEluYy4xKDAmBgNVBAsTH1NlZSB3d3cuZW50 +cnVzdC5uZXQvbGVnYWwtdGVybXMxOTA3BgNVBAsTMChjKSAyMDA5IEVudHJ1c3Qs +IEluYy4gLSBmb3IgYXV0aG9yaXplZCB1c2Ugb25seTEyMDAGA1UEAxMpRW50cnVz +dCBSb290IENlcnRpZmljYXRpb24gQXV0aG9yaXR5IC0gRzIwHhcNMDkwNzA3MTcy +NTU0WhcNMzAxMjA3MTc1NTU0WjCBvjELMAkGA1UEBhMCVVMxFjAUBgNVBAoTDUVu +dHJ1c3QsIEluYy4xKDAmBgNVBAsTH1NlZSB3d3cuZW50cnVzdC5uZXQvbGVnYWwt +dGVybXMxOTA3BgNVBAsTMChjKSAyMDA5IEVudHJ1c3QsIEluYy4gLSBmb3IgYXV0 +aG9yaXplZCB1c2Ugb25seTEyMDAGA1UEAxMpRW50cnVzdCBSb290IENlcnRpZmlj +YXRpb24gQXV0aG9yaXR5IC0gRzIwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK +AoIBAQC6hLZy254Ma+KZ6TABp3bqMriVQRrJ2mFOWHLP/vaCeb9zYQYKpSfYs1/T +RU4cctZOMvJyig/3gxnQaoCAAEUesMfnmr8SVycco2gvCoe9amsOXmXzHHfV1IWN +cCG0szLni6LVhjkCsbjSR87kyUnEO6fe+1R9V77w6G7CebI6C1XiUJgWMhNcL3hW +wcKUs/Ja5CeanyTXxuzQmyWC48zCxEXFjJd6BmsqEZ+pCm5IO2/b1BEZQvePB7/1 +U1+cPvQXLOZprE4yTGJ36rfo5bs0vBmLrpxR57d+tVOxMyLlbc9wPBr64ptntoP0 +jaWvYkxN4FisZDQSA/i2jZRjJKRxAgMBAAGjQjBAMA4GA1UdDwEB/wQEAwIBBjAP +BgNVHRMBAf8EBTADAQH/MB0GA1UdDgQWBBRqciZ60B7vfec7aVHUbI2fkBJmqzAN +BgkqhkiG9w0BAQsFAAOCAQEAeZ8dlsa2eT8ijYfThwMEYGprmi5ZiXMRrEPR9RP/ +jTkrwPK9T3CMqS/qF8QLVJ7UG5aYMzyorWKiAHarWWluBh1+xLlEjZivEtRh2woZ +Rkfz6/djwUAFQKXSt/S1mja/qYh2iARVBCuch38aNzx+LaUa2NSJXsq9rD1s2G2v +1fN2D807iDginWyTmsQ9v4IbZT+mD12q/OWyFcq1rca8PdCE6OoGcrBNOTJ4vz4R +nAuknZoh8/CbCzB428Hch0P+vGOaysXCHMnHjf87ElgI5rY97HosTvuDls4MPGmH +VHOkc8KT/1EQrBVUAdj8BbGJoX90g5pJ19xOe4pIb4tF9g== +-----END CERTIFICATE----- + +# Issuer: CN=Entrust Root Certification Authority - EC1 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2012 Entrust, Inc. - for authorized use only +# Subject: CN=Entrust Root Certification Authority - EC1 O=Entrust, Inc. 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OU=OISTE Foundation Endorsed +# Subject: CN=OISTE WISeKey Global Root GB CA O=WISeKey OU=OISTE Foundation Endorsed +# Label: "OISTE WISeKey Global Root GB CA" +# Serial: 157768595616588414422159278966750757568 +# MD5 Fingerprint: a4:eb:b9:61:28:2e:b7:2f:98:b0:35:26:90:99:51:1d +# SHA1 Fingerprint: 0f:f9:40:76:18:d3:d7:6a:4b:98:f0:a8:35:9e:0c:fd:27:ac:cc:ed +# SHA256 Fingerprint: 6b:9c:08:e8:6e:b0:f7:67:cf:ad:65:cd:98:b6:21:49:e5:49:4a:67:f5:84:5e:7b:d1:ed:01:9f:27:b8:6b:d6 +-----BEGIN CERTIFICATE----- +MIIDtTCCAp2gAwIBAgIQdrEgUnTwhYdGs/gjGvbCwDANBgkqhkiG9w0BAQsFADBt +MQswCQYDVQQGEwJDSDEQMA4GA1UEChMHV0lTZUtleTEiMCAGA1UECxMZT0lTVEUg +Rm91bmRhdGlvbiBFbmRvcnNlZDEoMCYGA1UEAxMfT0lTVEUgV0lTZUtleSBHbG9i +YWwgUm9vdCBHQiBDQTAeFw0xNDEyMDExNTAwMzJaFw0zOTEyMDExNTEwMzFaMG0x +CzAJBgNVBAYTAkNIMRAwDgYDVQQKEwdXSVNlS2V5MSIwIAYDVQQLExlPSVNURSBG +b3VuZGF0aW9uIEVuZG9yc2VkMSgwJgYDVQQDEx9PSVNURSBXSVNlS2V5IEdsb2Jh +bCBSb290IEdCIENBMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2Be3 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Rozliczeniowa S.A. +# Label: "SZAFIR ROOT CA2" +# Serial: 357043034767186914217277344587386743377558296292 +# MD5 Fingerprint: 11:64:c1:89:b0:24:b1:8c:b1:07:7e:89:9e:51:9e:99 +# SHA1 Fingerprint: e2:52:fa:95:3f:ed:db:24:60:bd:6e:28:f3:9c:cc:cf:5e:b3:3f:de +# SHA256 Fingerprint: a1:33:9d:33:28:1a:0b:56:e5:57:d3:d3:2b:1c:e7:f9:36:7e:b0:94:bd:5f:a7:2a:7e:50:04:c8:de:d7:ca:fe +-----BEGIN CERTIFICATE----- +MIIDcjCCAlqgAwIBAgIUPopdB+xV0jLVt+O2XwHrLdzk1uQwDQYJKoZIhvcNAQEL +BQAwUTELMAkGA1UEBhMCUEwxKDAmBgNVBAoMH0tyYWpvd2EgSXpiYSBSb3psaWN6 +ZW5pb3dhIFMuQS4xGDAWBgNVBAMMD1NaQUZJUiBST09UIENBMjAeFw0xNTEwMTkw +NzQzMzBaFw0zNTEwMTkwNzQzMzBaMFExCzAJBgNVBAYTAlBMMSgwJgYDVQQKDB9L +cmFqb3dhIEl6YmEgUm96bGljemVuaW93YSBTLkEuMRgwFgYDVQQDDA9TWkFGSVIg +Uk9PVCBDQTIwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC3vD5QqEvN +QLXOYeeWyrSh2gwisPq1e3YAd4wLz32ohswmUeQgPYUM1ljj5/QqGJ3a0a4m7utT +3PSQ1hNKDJA8w/Ta0o4NkjrcsbH/ON7Dui1fgLkCvUqdGw+0w8LBZwPd3BucPbOw +3gAeqDRHu5rr/gsUvTaE2g0gv/pby6kWIK05YO4vdbbnl5z5Pv1+TW9NL++IDWr6 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OU=Certum Certification Authority +# Subject: CN=Certum Trusted Network CA 2 O=Unizeto Technologies S.A. 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Authority +# Subject: CN=Hellenic Academic and Research Institutions RootCA 2015 O=Hellenic Academic and Research Institutions Cert. Authority +# Label: "Hellenic Academic and Research Institutions RootCA 2015" +# Serial: 0 +# MD5 Fingerprint: ca:ff:e2:db:03:d9:cb:4b:e9:0f:ad:84:fd:7b:18:ce +# SHA1 Fingerprint: 01:0c:06:95:a6:98:19:14:ff:bf:5f:c6:b0:b6:95:ea:29:e9:12:a6 +# SHA256 Fingerprint: a0:40:92:9a:02:ce:53:b4:ac:f4:f2:ff:c6:98:1c:e4:49:6f:75:5e:6d:45:fe:0b:2a:69:2b:cd:52:52:3f:36 +-----BEGIN CERTIFICATE----- +MIIGCzCCA/OgAwIBAgIBADANBgkqhkiG9w0BAQsFADCBpjELMAkGA1UEBhMCR1Ix +DzANBgNVBAcTBkF0aGVuczFEMEIGA1UEChM7SGVsbGVuaWMgQWNhZGVtaWMgYW5k +IFJlc2VhcmNoIEluc3RpdHV0aW9ucyBDZXJ0LiBBdXRob3JpdHkxQDA+BgNVBAMT +N0hlbGxlbmljIEFjYWRlbWljIGFuZCBSZXNlYXJjaCBJbnN0aXR1dGlvbnMgUm9v +dENBIDIwMTUwHhcNMTUwNzA3MTAxMTIxWhcNNDAwNjMwMTAxMTIxWjCBpjELMAkG +A1UEBhMCR1IxDzANBgNVBAcTBkF0aGVuczFEMEIGA1UEChM7SGVsbGVuaWMgQWNh +ZGVtaWMgYW5kIFJlc2VhcmNoIEluc3RpdHV0aW9ucyBDZXJ0LiBBdXRob3JpdHkx +QDA+BgNVBAMTN0hlbGxlbmljIEFjYWRlbWljIGFuZCBSZXNlYXJjaCBJbnN0aXR1 +dGlvbnMgUm9vdENBIDIwMTUwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoIC +AQDC+Kk/G4n8PDwEXT2QNrCROnk8ZlrvbTkBSRq0t89/TSNTt5AA4xMqKKYx8ZEA +4yjsriFBzh/a/X0SWwGDD7mwX5nh8hKDgE0GPt+sr+ehiGsxr/CL0BgzuNtFajT0 +AoAkKAoCFZVedioNmToUW/bLy1O8E00BiDeUJRtCvCLYjqOWXjrZMts+6PAQZe10 +4S+nfK8nNLspfZu2zwnI5dMK/IhlZXQK3HMcXM1AsRzUtoSMTFDPaI6oWa7CJ06C +ojXdFPQf/7J31Ycvqm59JCfnxssm5uX+Zwdj2EUN3TpZZTlYepKZcj2chF6IIbjV +9Cz82XBST3i4vTwri5WY9bPRaM8gFH5MXF/ni+X1NYEZN9cRCLdmvtNKzoNXADrD +gfgXy5I2XdGj2HUb4Ysn6npIQf1FGQatJ5lOwXBH3bWfgVMS5bGMSF0xQxfjjMZ6 +Y5ZLKTBOhE5iGV48zpeQpX8B653g+IuJ3SWYPZK2fu/Z8VFRfS0myGlZYeCsargq +NhEEelC9MoS+L9xy1dcdFkfkR2YgP/SWxa+OAXqlD3pk9Q0Yh9muiNX6hME6wGko +LfINaFGq46V3xqSQDqE3izEjR8EJCOtu93ib14L8hCCZSRm2Ekax+0VVFqmjZayc +Bw/qa9wfLgZy7IaIEuQt218FL+TwA9MmM+eAws1CoRc0CwIDAQABo0IwQDAPBgNV +HRMBAf8EBTADAQH/MA4GA1UdDwEB/wQEAwIBBjAdBgNVHQ4EFgQUcRVnyMjJvXVd +ctA4GGqd83EkVAswDQYJKoZIhvcNAQELBQADggIBAHW7bVRLqhBYRjTyYtcWNl0I +XtVsyIe9tC5G8jH4fOpCtZMWVdyhDBKg2mF+D1hYc2Ryx+hFjtyp8iY/xnmMsVMI +M4GwVhO+5lFc2JsKT0ucVlMC6U/2DWDqTUJV6HwbISHTGzrMd/K4kPFox/la/vot +9L/J9UUbzjgQKjeKeaO04wlshYaT/4mWJ3iBj2fjRnRUjtkNaeJK9E10A/+yd+2V +Z5fkscWrv2oj6NSU4kQoYsRL4vDY4ilrGnB+JGGTe08DMiUNRSQrlrRGar9KC/ea +j8GsGsVn82800vpzY4zvFrCopEYq+OsS7HK07/grfoxSwIuEVPkvPuNVqNxmsdnh +X9izjFk0WaSrT2y7HxjbdavYy5LNlDhhDgcGH0tGEPEVvo2FXDtKK4F5D7Rpn0lQ +l033DlZdwJVqwjbDG2jJ9SrcR5q+ss7FJej6A7na+RZukYT1HCjI/CbM1xyQVqdf +bzoEvM14iQuODy+jqk+iGxI9FghAD/FGTNeqewjBCvVtJ94Cj8rDtSvK6evIIVM4 +pcw72Hc3MKJP2W/R8kCtQXoXxdZKNYm3QdV8hn9VTYNKpXMgwDqvkPGaJI7ZjnHK +e7iG2rKPmT4dEw0SEe7Uq/DpFXYC5ODfqiAeW2GFZECpkJcNrVPSWh2HagCXZWK0 +vm9qp/UsQu0yrbYhnr68 +-----END CERTIFICATE----- + +# Issuer: CN=Hellenic Academic and Research Institutions ECC RootCA 2015 O=Hellenic Academic and Research Institutions Cert. Authority +# Subject: CN=Hellenic Academic and Research Institutions ECC RootCA 2015 O=Hellenic Academic and Research Institutions Cert. Authority +# Label: "Hellenic Academic and Research Institutions ECC RootCA 2015" +# Serial: 0 +# MD5 Fingerprint: 81:e5:b4:17:eb:c2:f5:e1:4b:0d:41:7b:49:92:fe:ef +# SHA1 Fingerprint: 9f:f1:71:8d:92:d5:9a:f3:7d:74:97:b4:bc:6f:84:68:0b:ba:b6:66 +# SHA256 Fingerprint: 44:b5:45:aa:8a:25:e6:5a:73:ca:15:dc:27:fc:36:d2:4c:1c:b9:95:3a:06:65:39:b1:15:82:dc:48:7b:48:33 +-----BEGIN CERTIFICATE----- +MIICwzCCAkqgAwIBAgIBADAKBggqhkjOPQQDAjCBqjELMAkGA1UEBhMCR1IxDzAN +BgNVBAcTBkF0aGVuczFEMEIGA1UEChM7SGVsbGVuaWMgQWNhZGVtaWMgYW5kIFJl +c2VhcmNoIEluc3RpdHV0aW9ucyBDZXJ0LiBBdXRob3JpdHkxRDBCBgNVBAMTO0hl +bGxlbmljIEFjYWRlbWljIGFuZCBSZXNlYXJjaCBJbnN0aXR1dGlvbnMgRUNDIFJv +b3RDQSAyMDE1MB4XDTE1MDcwNzEwMzcxMloXDTQwMDYzMDEwMzcxMlowgaoxCzAJ +BgNVBAYTAkdSMQ8wDQYDVQQHEwZBdGhlbnMxRDBCBgNVBAoTO0hlbGxlbmljIEFj +YWRlbWljIGFuZCBSZXNlYXJjaCBJbnN0aXR1dGlvbnMgQ2VydC4gQXV0aG9yaXR5 +MUQwQgYDVQQDEztIZWxsZW5pYyBBY2FkZW1pYyBhbmQgUmVzZWFyY2ggSW5zdGl0 +dXRpb25zIEVDQyBSb290Q0EgMjAxNTB2MBAGByqGSM49AgEGBSuBBAAiA2IABJKg 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Root CA G2" +# Serial: 1492087096131536844209563509228951875861589 +# MD5 Fingerprint: a7:ee:c4:78:2d:1b:ee:2d:b9:29:ce:d6:a7:96:32:31 +# SHA1 Fingerprint: 4f:65:8e:1f:e9:06:d8:28:02:e9:54:47:41:c9:54:25:5d:69:cc:1a +# SHA256 Fingerprint: 6c:c0:50:41:e6:44:5e:74:69:6c:4c:fb:c9:f8:0f:54:3b:7e:ab:bb:44:b4:ce:6f:78:7c:6a:99:71:c4:2f:17 +-----BEGIN CERTIFICATE----- +MIICHDCCAaKgAwIBAgISESDZkc6uo+jF5//pAq/Pc7xVMAoGCCqGSM49BAMDMD4x +CzAJBgNVBAYTAkZSMREwDwYDVQQKDAhDZXJ0cGx1czEcMBoGA1UEAwwTQ2VydHBs +dXMgUm9vdCBDQSBHMjAeFw0xNDA1MjYwMDAwMDBaFw0zODAxMTUwMDAwMDBaMD4x +CzAJBgNVBAYTAkZSMREwDwYDVQQKDAhDZXJ0cGx1czEcMBoGA1UEAwwTQ2VydHBs +dXMgUm9vdCBDQSBHMjB2MBAGByqGSM49AgEGBSuBBAAiA2IABM0PW1aC3/BFGtat +93nwHcmsltaeTpwftEIRyoa/bfuFo8XlGVzX7qY/aWfYeOKmycTbLXku54uNAm8x +Ik0G42ByRZ0OQneezs/lf4WbGOT8zC5y0xaTTsqZY1yhBSpsBqNjMGEwDgYDVR0P +AQH/BAQDAgEGMA8GA1UdEwEB/wQFMAMBAf8wHQYDVR0OBBYEFNqDYwJ5jtpMxjwj +FNiPwyCrKGBZMB8GA1UdIwQYMBaAFNqDYwJ5jtpMxjwjFNiPwyCrKGBZMAoGCCqG 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27:99:58:29:fe:6a:75:15:c1:bf:e8:48:f9:c4:76:1d:b1:6c:22:59:29:25:7b:f4:0d:08:94:f2:9e:a8:ba:f2 +-----BEGIN CERTIFICATE----- +MIIFbzCCA1egAwIBAgISESChaRu/vbm9UpaPI+hIvyYRMA0GCSqGSIb3DQEBDQUA +MEAxCzAJBgNVBAYTAkZSMRIwEAYDVQQKDAlPcGVuVHJ1c3QxHTAbBgNVBAMMFE9w +ZW5UcnVzdCBSb290IENBIEcyMB4XDTE0MDUyNjAwMDAwMFoXDTM4MDExNTAwMDAw +MFowQDELMAkGA1UEBhMCRlIxEjAQBgNVBAoMCU9wZW5UcnVzdDEdMBsGA1UEAwwU +T3BlblRydXN0IFJvb3QgQ0EgRzIwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIK +AoICAQDMtlelM5QQgTJT32F+D3Y5z1zCU3UdSXqWON2ic2rxb95eolq5cSG+Ntmh +/LzubKh8NBpxGuga2F8ORAbtp+Dz0mEL4DKiltE48MLaARf85KxP6O6JHnSrT78e +CbY2albz4e6WiWYkBuTNQjpK3eCasMSCRbP+yatcfD7J6xcvDH1urqWPyKwlCm/6 +1UWY0jUJ9gNDlP7ZvyCVeYCYitmJNbtRG6Q3ffyZO6v/v6wNj0OxmXsWEH4db0fE +FY8ElggGQgT4hNYdvJGmQr5J1WqIP7wtUdGejeBSzFfdNTVY27SPJIjki9/ca1TS +gSuyzpJLHB9G+h3Ykst2Z7UJmQnlrBcUVXDGPKBWCgOz3GIZ38i1MH/1PCZ1Eb3X +G7OHngevZXHloM8apwkQHZOJZlvoPGIytbU6bumFAYueQ4xncyhZW+vj3CzMpSZy +YhK05pyDRPZRpOLAeiRXyg6lPzq1O4vldu5w5pLeFlwoW5cZJ5L+epJUzpM5ChaH 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+# Serial: 485876308206448804701554682760554759 +# MD5 Fingerprint: e2:09:04:b4:d3:bd:d1:a0:14:fd:1a:d2:47:c4:57:1d +# SHA1 Fingerprint: ec:50:35:07:b2:15:c4:95:62:19:e2:a8:9a:5b:42:99:2c:4c:2c:20 +# SHA256 Fingerprint: eb:c5:57:0c:29:01:8c:4d:67:b1:aa:12:7b:af:12:f7:03:b4:61:1e:bc:17:b7:da:b5:57:38:94:17:9b:93:fa +-----BEGIN CERTIFICATE----- +MIIFgzCCA2ugAwIBAgIPXZONMGc2yAYdGsdUhGkHMA0GCSqGSIb3DQEBCwUAMDsx +CzAJBgNVBAYTAkVTMREwDwYDVQQKDAhGTk1ULVJDTTEZMBcGA1UECwwQQUMgUkFJ +WiBGTk1ULVJDTTAeFw0wODEwMjkxNTU5NTZaFw0zMDAxMDEwMDAwMDBaMDsxCzAJ +BgNVBAYTAkVTMREwDwYDVQQKDAhGTk1ULVJDTTEZMBcGA1UECwwQQUMgUkFJWiBG +Tk1ULVJDTTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBALpxgHpMhm5/ +yBNtwMZ9HACXjywMI7sQmkCpGreHiPibVmr75nuOi5KOpyVdWRHbNi63URcfqQgf +BBckWKo3Shjf5TnUV/3XwSyRAZHiItQDwFj8d0fsjz50Q7qsNI1NOHZnjrDIbzAz +WHFctPVrbtQBULgTfmxKo0nRIBnuvMApGGWn3v7v3QqQIecaZ5JCEJhfTzC8PhxF +tBDXaEAUwED653cXeuYLj2VbPNmaUtu1vZ5Gzz3rkQUCwJaydkxNEJY7kvqcfw+Z 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+rqXRfboQnoZsG4q5WTP468SQvvG5 +-----END CERTIFICATE----- + +# Issuer: CN=Amazon Root CA 2 O=Amazon +# Subject: CN=Amazon Root CA 2 O=Amazon +# Label: "Amazon Root CA 2" +# Serial: 143266982885963551818349160658925006970653239 +# MD5 Fingerprint: c8:e5:8d:ce:a8:42:e2:7a:c0:2a:5c:7c:9e:26:bf:66 +# SHA1 Fingerprint: 5a:8c:ef:45:d7:a6:98:59:76:7a:8c:8b:44:96:b5:78:cf:47:4b:1a +# SHA256 Fingerprint: 1b:a5:b2:aa:8c:65:40:1a:82:96:01:18:f8:0b:ec:4f:62:30:4d:83:ce:c4:71:3a:19:c3:9c:01:1e:a4:6d:b4 +-----BEGIN CERTIFICATE----- +MIIFQTCCAymgAwIBAgITBmyf0pY1hp8KD+WGePhbJruKNzANBgkqhkiG9w0BAQwF +ADA5MQswCQYDVQQGEwJVUzEPMA0GA1UEChMGQW1hem9uMRkwFwYDVQQDExBBbWF6 +b24gUm9vdCBDQSAyMB4XDTE1MDUyNjAwMDAwMFoXDTQwMDUyNjAwMDAwMFowOTEL +MAkGA1UEBhMCVVMxDzANBgNVBAoTBkFtYXpvbjEZMBcGA1UEAxMQQW1hem9uIFJv +b3QgQ0EgMjCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAK2Wny2cSkxK +gXlRmeyKy2tgURO8TW0G/LAIjd0ZEGrHJgw12MBvIITplLGbhQPDW9tK6Mj4kHbZ +W0/jTOgGNk3Mmqw9DJArktQGGWCsN0R5hYGCrVo34A3MnaZMUnbqQ523BNFQ9lXg 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e3:5d:28:41:9e:d0:20:25:cf:a6:90:38:cd:62:39:62:45:8d:a5:c6:95:fb:de:a3:c2:2b:0b:fb:25:89:70:92 +-----BEGIN CERTIFICATE----- +MIIB8jCCAXigAwIBAgITBmyf18G7EEwpQ+Vxe3ssyBrBDjAKBggqhkjOPQQDAzA5 +MQswCQYDVQQGEwJVUzEPMA0GA1UEChMGQW1hem9uMRkwFwYDVQQDExBBbWF6b24g +Um9vdCBDQSA0MB4XDTE1MDUyNjAwMDAwMFoXDTQwMDUyNjAwMDAwMFowOTELMAkG +A1UEBhMCVVMxDzANBgNVBAoTBkFtYXpvbjEZMBcGA1UEAxMQQW1hem9uIFJvb3Qg +Q0EgNDB2MBAGByqGSM49AgEGBSuBBAAiA2IABNKrijdPo1MN/sGKe0uoe0ZLY7Bi +9i0b2whxIdIA6GO9mif78DluXeo9pcmBqqNbIJhFXRbb/egQbeOc4OO9X4Ri83Bk +M6DLJC9wuoihKqB1+IGuYgbEgds5bimwHvouXKNCMEAwDwYDVR0TAQH/BAUwAwEB +/zAOBgNVHQ8BAf8EBAMCAYYwHQYDVR0OBBYEFNPsxzplbszh2naaVvuc84ZtV+WB +MAoGCCqGSM49BAMDA2gAMGUCMDqLIfG9fhGt0O9Yli/W651+kI0rz2ZVwyzjKKlw +CkcO8DdZEv8tmZQoTipPNU0zWgIxAOp1AE47xDqUEpHJWEadIRNyp4iciuRMStuW +1KyLa2tJElMzrdfkviT8tQp21KW8EA== +-----END CERTIFICATE----- + +# Issuer: CN=LuxTrust Global Root 2 O=LuxTrust S.A. +# Subject: CN=LuxTrust Global Root 2 O=LuxTrust S.A. +# Label: "LuxTrust Global Root 2" +# Serial: 59914338225734147123941058376788110305822489521 +# MD5 Fingerprint: b2:e1:09:00:61:af:f7:f1:91:6f:c4:ad:8d:5e:3b:7c +# SHA1 Fingerprint: 1e:0e:56:19:0a:d1:8b:25:98:b2:04:44:ff:66:8a:04:17:99:5f:3f +# SHA256 Fingerprint: 54:45:5f:71:29:c2:0b:14:47:c4:18:f9:97:16:8f:24:c5:8f:c5:02:3b:f5:da:5b:e2:eb:6e:1d:d8:90:2e:d5 +-----BEGIN CERTIFICATE----- +MIIFwzCCA6ugAwIBAgIUCn6m30tEntpqJIWe5rgV0xZ/u7EwDQYJKoZIhvcNAQEL +BQAwRjELMAkGA1UEBhMCTFUxFjAUBgNVBAoMDUx1eFRydXN0IFMuQS4xHzAdBgNV +BAMMFkx1eFRydXN0IEdsb2JhbCBSb290IDIwHhcNMTUwMzA1MTMyMTU3WhcNMzUw +MzA1MTMyMTU3WjBGMQswCQYDVQQGEwJMVTEWMBQGA1UECgwNTHV4VHJ1c3QgUy5B +LjEfMB0GA1UEAwwWTHV4VHJ1c3QgR2xvYmFsIFJvb3QgMjCCAiIwDQYJKoZIhvcN +AQEBBQADggIPADCCAgoCggIBANeFl78RmOnwYoNMPIf5U2o3C/IPPIfOb9wmKb3F +ibrJgz337spbxm1Jc7TJRqMbNBM/wYlFV/TZsfs2ZUv7COJIcRHIbjuend+JZTem +hfY7RBi2xjcwYkSSl2l9QjAk5A0MiWtj3sXh306pFGxT4GHO9hcvHTy95iJMHZP1 +EMShduxq3sVs35a0VkBCwGKSMKEtFZSg0iAGCW5qbeXrt77U8PEVfIvmTroTzEsn 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31:43:64:9b:ec:ce:27:ec:ed:3a:3f:0b:8f:0d:e4:e8:91:dd:ee:ca +# SHA256 Fingerprint: 46:ed:c3:68:90:46:d5:3a:45:3f:b3:10:4a:b8:0d:ca:ec:65:8b:26:60:ea:16:29:dd:7e:86:79:90:64:87:16 +-----BEGIN CERTIFICATE----- +MIIEYzCCA0ugAwIBAgIBATANBgkqhkiG9w0BAQsFADCB0jELMAkGA1UEBhMCVFIx +GDAWBgNVBAcTD0dlYnplIC0gS29jYWVsaTFCMEAGA1UEChM5VHVya2l5ZSBCaWxp +bXNlbCB2ZSBUZWtub2xvamlrIEFyYXN0aXJtYSBLdXJ1bXUgLSBUVUJJVEFLMS0w +KwYDVQQLEyRLYW11IFNlcnRpZmlrYXN5b24gTWVya2V6aSAtIEthbXUgU00xNjA0 +BgNVBAMTLVRVQklUQUsgS2FtdSBTTSBTU0wgS29rIFNlcnRpZmlrYXNpIC0gU3Vy +dW0gMTAeFw0xMzExMjUwODI1NTVaFw00MzEwMjUwODI1NTVaMIHSMQswCQYDVQQG +EwJUUjEYMBYGA1UEBxMPR2ViemUgLSBLb2NhZWxpMUIwQAYDVQQKEzlUdXJraXll +IEJpbGltc2VsIHZlIFRla25vbG9qaWsgQXJhc3Rpcm1hIEt1cnVtdSAtIFRVQklU +QUsxLTArBgNVBAsTJEthbXUgU2VydGlmaWthc3lvbiBNZXJrZXppIC0gS2FtdSBT +TTE2MDQGA1UEAxMtVFVCSVRBSyBLYW11IFNNIFNTTCBLb2sgU2VydGlmaWthc2kg +LSBTdXJ1bSAxMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAr3UwM6q7 +a9OZLBI3hNmNe5eA027n/5tQlT6QlVZC1xl8JoSNkvoBHToP4mQ4t4y86Ij5iySr 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9009899650740120186 +# MD5 Fingerprint: 63:cc:d9:3d:34:35:5c:6f:53:a3:e2:08:70:48:1f:b4 +# SHA1 Fingerprint: 0f:36:38:5b:81:1a:25:c3:9b:31:4e:83:ca:e9:34:66:70:cc:74:b4 +# SHA256 Fingerprint: bf:ff:8f:d0:44:33:48:7d:6a:8a:a6:0c:1a:29:76:7a:9f:c2:bb:b0:5e:42:0f:71:3a:13:b9:92:89:1d:38:93 +-----BEGIN CERTIFICATE----- +MIIFiDCCA3CgAwIBAgIIfQmX/vBH6nowDQYJKoZIhvcNAQELBQAwYjELMAkGA1UE +BhMCQ04xMjAwBgNVBAoMKUdVQU5HIERPTkcgQ0VSVElGSUNBVEUgQVVUSE9SSVRZ +IENPLixMVEQuMR8wHQYDVQQDDBZHRENBIFRydXN0QVVUSCBSNSBST09UMB4XDTE0 +MTEyNjA1MTMxNVoXDTQwMTIzMTE1NTk1OVowYjELMAkGA1UEBhMCQ04xMjAwBgNV +BAoMKUdVQU5HIERPTkcgQ0VSVElGSUNBVEUgQVVUSE9SSVRZIENPLixMVEQuMR8w +HQYDVQQDDBZHRENBIFRydXN0QVVUSCBSNSBST09UMIICIjANBgkqhkiG9w0BAQEF +AAOCAg8AMIICCgKCAgEA2aMW8Mh0dHeb7zMNOwZ+Vfy1YI92hhJCfVZmPoiC7XJj +Dp6L3TQsAlFRwxn9WVSEyfFrs0yw6ehGXTjGoqcuEVe6ghWinI9tsJlKCvLriXBj +TnnEt1u9ol2x8kECK62pOqPseQrsXzrj/e+APK00mxqriCZ7VqKChh/rNYmDf1+u +KU49tm7srsHwJ5uu4/Ts765/94Y9cnrrpftZTqfrlYwiOXnhLQiPzLyRuEH3FMEj 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OU=TrustCor Certificate Authority +# Subject: CN=TrustCor RootCert CA-1 O=TrustCor Systems S. de R.L. OU=TrustCor Certificate Authority +# Label: "TrustCor RootCert CA-1" +# Serial: 15752444095811006489 +# MD5 Fingerprint: 6e:85:f1:dc:1a:00:d3:22:d5:b2:b2:ac:6b:37:05:45 +# SHA1 Fingerprint: ff:bd:cd:e7:82:c8:43:5e:3c:6f:26:86:5c:ca:a8:3a:45:5b:c3:0a +# SHA256 Fingerprint: d4:0e:9c:86:cd:8f:e4:68:c1:77:69:59:f4:9e:a7:74:fa:54:86:84:b6:c4:06:f3:90:92:61:f4:dc:e2:57:5c +-----BEGIN CERTIFICATE----- +MIIEMDCCAxigAwIBAgIJANqb7HHzA7AZMA0GCSqGSIb3DQEBCwUAMIGkMQswCQYD +VQQGEwJQQTEPMA0GA1UECAwGUGFuYW1hMRQwEgYDVQQHDAtQYW5hbWEgQ2l0eTEk +MCIGA1UECgwbVHJ1c3RDb3IgU3lzdGVtcyBTLiBkZSBSLkwuMScwJQYDVQQLDB5U +cnVzdENvciBDZXJ0aWZpY2F0ZSBBdXRob3JpdHkxHzAdBgNVBAMMFlRydXN0Q29y +IFJvb3RDZXJ0IENBLTEwHhcNMTYwMjA0MTIzMjE2WhcNMjkxMjMxMTcyMzE2WjCB +pDELMAkGA1UEBhMCUEExDzANBgNVBAgMBlBhbmFtYTEUMBIGA1UEBwwLUGFuYW1h +IENpdHkxJDAiBgNVBAoMG1RydXN0Q29yIFN5c3RlbXMgUy4gZGUgUi5MLjEnMCUG +A1UECwweVHJ1c3RDb3IgQ2VydGlmaWNhdGUgQXV0aG9yaXR5MR8wHQYDVQQDDBZU +cnVzdENvciBSb290Q2VydCBDQS0xMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIB +CgKCAQEAv463leLCJhJrMxnHQFgKq1mqjQCj/IDHUHuO1CAmujIS2CNUSSUQIpid +RtLByZ5OGy4sDjjzGiVoHKZaBeYei0i/mJZ0PmnK6bV4pQa81QBeCQryJ3pS/C3V +seq0iWEk8xoT26nPUu0MJLq5nux+AHT6k61sKZKuUbS701e/s/OojZz0JEsq1pme +9J7+wH5COucLlVPat2gOkEz7cD+PSiyU8ybdY2mplNgQTsVHCJCZGxdNuWxu72CV +EY4hgLW9oHPY0LJ3xEXqWib7ZnZ2+AYfYW0PVcWDtxBWcgYHpfOxGgMFZA6dWorW +hnAbJN7+KIor0Gqw/Hqi3LJ5DotlDwIDAQABo2MwYTAdBgNVHQ4EFgQU7mtJPHo/ +DeOxCbeKyKsZn3MzUOcwHwYDVR0jBBgwFoAU7mtJPHo/DeOxCbeKyKsZn3MzUOcw +DwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMCAYYwDQYJKoZIhvcNAQELBQAD +ggEBACUY1JGPE+6PHh0RU9otRCkZoB5rMZ5NDp6tPVxBb5UrJKF5mDo4Nvu7Zp5I +/5CQ7z3UuJu0h3U/IJvOcs+hVcFNZKIZBqEHMwwLKeXx6quj7LUKdJDHfXLy11yf +ke+Ri7fc7Waiz45mO7yfOgLgJ90WmMCV1Aqk5IGadZQ1nJBfiDcGrVmVCrDRZ9MZ +yonnMlo2HD6CqFqTvsbQZJG2z9m2GM/bftJlo6bEjhcxwft+dtvTheNYsnd6djts +L1Ac59v2Z3kf9YKVmgenFK+P3CghZwnS1k1aHBkcjndcw5QkPTJrS37UeJSDvjdN +zl/HHk484IkzlQsPpTLWPFp5LBk= +-----END CERTIFICATE----- + +# Issuer: CN=TrustCor RootCert CA-2 O=TrustCor Systems S. de R.L. OU=TrustCor Certificate Authority +# Subject: CN=TrustCor RootCert CA-2 O=TrustCor Systems S. de R.L. OU=TrustCor Certificate Authority +# Label: "TrustCor RootCert CA-2" +# Serial: 2711694510199101698 +# MD5 Fingerprint: a2:e1:f8:18:0b:ba:45:d5:c7:41:2a:bb:37:52:45:64 +# SHA1 Fingerprint: b8:be:6d:cb:56:f1:55:b9:63:d4:12:ca:4e:06:34:c7:94:b2:1c:c0 +# SHA256 Fingerprint: 07:53:e9:40:37:8c:1b:d5:e3:83:6e:39:5d:ae:a5:cb:83:9e:50:46:f1:bd:0e:ae:19:51:cf:10:fe:c7:c9:65 +-----BEGIN CERTIFICATE----- +MIIGLzCCBBegAwIBAgIIJaHfyjPLWQIwDQYJKoZIhvcNAQELBQAwgaQxCzAJBgNV +BAYTAlBBMQ8wDQYDVQQIDAZQYW5hbWExFDASBgNVBAcMC1BhbmFtYSBDaXR5MSQw +IgYDVQQKDBtUcnVzdENvciBTeXN0ZW1zIFMuIGRlIFIuTC4xJzAlBgNVBAsMHlRy +dXN0Q29yIENlcnRpZmljYXRlIEF1dGhvcml0eTEfMB0GA1UEAwwWVHJ1c3RDb3Ig +Um9vdENlcnQgQ0EtMjAeFw0xNjAyMDQxMjMyMjNaFw0zNDEyMzExNzI2MzlaMIGk +MQswCQYDVQQGEwJQQTEPMA0GA1UECAwGUGFuYW1hMRQwEgYDVQQHDAtQYW5hbWEg +Q2l0eTEkMCIGA1UECgwbVHJ1c3RDb3IgU3lzdGVtcyBTLiBkZSBSLkwuMScwJQYD +VQQLDB5UcnVzdENvciBDZXJ0aWZpY2F0ZSBBdXRob3JpdHkxHzAdBgNVBAMMFlRy +dXN0Q29yIFJvb3RDZXJ0IENBLTIwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIK +AoICAQCnIG7CKqJiJJWQdsg4foDSq8GbZQWU9MEKENUCrO2fk8eHyLAnK0IMPQo+ +QVqedd2NyuCb7GgypGmSaIwLgQ5WoD4a3SwlFIIvl9NkRvRUqdw6VC0xK5mC8tkq +1+9xALgxpL56JAfDQiDyitSSBBtlVkxs1Pu2YVpHI7TYabS3OtB0PAx1oYxOdqHp +2yqlO/rOsP9+aij9JxzIsekp8VduZLTQwRVtDr4uDkbIXvRR/u8OYzo7cbrPb1nK +DOObXUm4TOJXsZiKQlecdu/vvdFoqNL0Cbt3Nb4lggjEFixEIFapRBF37120Hape +az6LMvYHL1cEksr1/p3C6eizjkxLAjHZ5DxIgif3GIJ2SDpxsROhOdUuxTTCHWKF +3wP+TfSvPd9cW436cOGlfifHhi5qjxLGhF5DUVCcGZt45vz27Ud+ez1m7xMTiF88 +oWP7+ayHNZ/zgp6kPwqcMWmLmaSISo5uZk3vFsQPeSghYA2FFn3XVDjxklb9tTNM +g9zXEJ9L/cb4Qr26fHMC4P99zVvh1Kxhe1fVSntb1IVYJ12/+CtgrKAmrhQhJ8Z3 +mjOAPF5GP/fDsaOGM8boXg25NSyqRsGFAnWAoOsk+xWq5Gd/bnc/9ASKL3x74xdh +8N0JqSDIvgmk0H5Ew7IwSjiqqewYmgeCK9u4nBit2uBGF6zPXQIDAQABo2MwYTAd +BgNVHQ4EFgQU2f4hQG6UnrybPZx9mCAZ5YwwYrIwHwYDVR0jBBgwFoAU2f4hQG6U +nrybPZx9mCAZ5YwwYrIwDwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMCAYYw +DQYJKoZIhvcNAQELBQADggIBAJ5Fngw7tu/hOsh80QA9z+LqBrWyOrsGS2h60COX +dKcs8AjYeVrXWoSK2BKaG9l9XE1wxaX5q+WjiYndAfrs3fnpkpfbsEZC89NiqpX+ +MWcUaViQCqoL7jcjx1BRtPV+nuN79+TMQjItSQzL/0kMmx40/W5ulop5A7Zv2wnL +/V9lFDfhOPXzYRZY5LVtDQsEGz9QLX+zx3oaFoBg+Iof6Rsqxvm6ARppv9JYx1RX +CI/hOWB3S6xZhBqI8d3LT3jX5+EzLfzuQfogsL7L9ziUwOHQhQ+77Sxzq+3+knYa +ZH9bDTMJBzN7Bj8RpFxwPIXAz+OQqIN3+tvmxYxoZxBnpVIt8MSZj3+/0WvitUfW +2dCFmU2Umw9Lje4AWkcdEQOsQRivh7dvDDqPys/cA8GiCcjl/YBeyGBCARsaU1q7 +N6a3vLqE6R5sGtRk2tRD/pOLS/IseRYQ1JMLiI+h2IYURpFHmygk71dSTlxCnKr3 +Sewn6EAes6aJInKc9Q0ztFijMDvd1GpUk74aTfOTlPf8hAs/hCBcNANExdqtvArB +As8e5ZTZ845b2EzwnexhF7sUMlQMAimTHpKG9n/v55IFDlndmQguLvqcAFLTxWYp +5KeXRKQOKIETNcX2b2TmQcTVL8w0RSXPQQCWPUouwpaYT05KnJe32x+SMsj/D1Fu +1uwJ +-----END CERTIFICATE----- + +# Issuer: CN=TrustCor ECA-1 O=TrustCor Systems S. de R.L. OU=TrustCor Certificate Authority +# Subject: CN=TrustCor ECA-1 O=TrustCor Systems S. de R.L. OU=TrustCor Certificate Authority +# Label: "TrustCor ECA-1" +# Serial: 9548242946988625984 +# MD5 Fingerprint: 27:92:23:1d:0a:f5:40:7c:e9:e6:6b:9d:d8:f5:e7:6c +# SHA1 Fingerprint: 58:d1:df:95:95:67:6b:63:c0:f0:5b:1c:17:4d:8b:84:0b:c8:78:bd +# SHA256 Fingerprint: 5a:88:5d:b1:9c:01:d9:12:c5:75:93:88:93:8c:af:bb:df:03:1a:b2:d4:8e:91:ee:15:58:9b:42:97:1d:03:9c +-----BEGIN CERTIFICATE----- +MIIEIDCCAwigAwIBAgIJAISCLF8cYtBAMA0GCSqGSIb3DQEBCwUAMIGcMQswCQYD +VQQGEwJQQTEPMA0GA1UECAwGUGFuYW1hMRQwEgYDVQQHDAtQYW5hbWEgQ2l0eTEk +MCIGA1UECgwbVHJ1c3RDb3IgU3lzdGVtcyBTLiBkZSBSLkwuMScwJQYDVQQLDB5U +cnVzdENvciBDZXJ0aWZpY2F0ZSBBdXRob3JpdHkxFzAVBgNVBAMMDlRydXN0Q29y +IEVDQS0xMB4XDTE2MDIwNDEyMzIzM1oXDTI5MTIzMTE3MjgwN1owgZwxCzAJBgNV +BAYTAlBBMQ8wDQYDVQQIDAZQYW5hbWExFDASBgNVBAcMC1BhbmFtYSBDaXR5MSQw +IgYDVQQKDBtUcnVzdENvciBTeXN0ZW1zIFMuIGRlIFIuTC4xJzAlBgNVBAsMHlRy +dXN0Q29yIENlcnRpZmljYXRlIEF1dGhvcml0eTEXMBUGA1UEAwwOVHJ1c3RDb3Ig +RUNBLTEwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDPj+ARtZ+odnbb 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Certification Authority RSA O=SSL Corporation +# Label: "SSL.com Root Certification Authority RSA" +# Serial: 8875640296558310041 +# MD5 Fingerprint: 86:69:12:c0:70:f1:ec:ac:ac:c2:d5:bc:a5:5b:a1:29 +# SHA1 Fingerprint: b7:ab:33:08:d1:ea:44:77:ba:14:80:12:5a:6f:bd:a9:36:49:0c:bb +# SHA256 Fingerprint: 85:66:6a:56:2e:e0:be:5c:e9:25:c1:d8:89:0a:6f:76:a8:7e:c1:6d:4d:7d:5f:29:ea:74:19:cf:20:12:3b:69 +-----BEGIN CERTIFICATE----- +MIIF3TCCA8WgAwIBAgIIeyyb0xaAMpkwDQYJKoZIhvcNAQELBQAwfDELMAkGA1UE +BhMCVVMxDjAMBgNVBAgMBVRleGFzMRAwDgYDVQQHDAdIb3VzdG9uMRgwFgYDVQQK +DA9TU0wgQ29ycG9yYXRpb24xMTAvBgNVBAMMKFNTTC5jb20gUm9vdCBDZXJ0aWZp +Y2F0aW9uIEF1dGhvcml0eSBSU0EwHhcNMTYwMjEyMTczOTM5WhcNNDEwMjEyMTcz +OTM5WjB8MQswCQYDVQQGEwJVUzEOMAwGA1UECAwFVGV4YXMxEDAOBgNVBAcMB0hv +dXN0b24xGDAWBgNVBAoMD1NTTCBDb3Jwb3JhdGlvbjExMC8GA1UEAwwoU1NMLmNv +bSBSb290IENlcnRpZmljYXRpb24gQXV0aG9yaXR5IFJTQTCCAiIwDQYJKoZIhvcN +AQEBBQADggIPADCCAgoCggIBAPkP3aMrfcvQKv7sZ4Wm5y4bunfh4/WvpOz6Sl2R 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34:17:bb:06:cc:60:07:da:1b:96:1c:92:0b:8a:b4:ce:3f:ad:82:0e:4a:a3:0b:9a:cb:c4:a7:4e:bd:ce:bc:65 +-----BEGIN CERTIFICATE----- +MIICjTCCAhSgAwIBAgIIdebfy8FoW6gwCgYIKoZIzj0EAwIwfDELMAkGA1UEBhMC +VVMxDjAMBgNVBAgMBVRleGFzMRAwDgYDVQQHDAdIb3VzdG9uMRgwFgYDVQQKDA9T +U0wgQ29ycG9yYXRpb24xMTAvBgNVBAMMKFNTTC5jb20gUm9vdCBDZXJ0aWZpY2F0 +aW9uIEF1dGhvcml0eSBFQ0MwHhcNMTYwMjEyMTgxNDAzWhcNNDEwMjEyMTgxNDAz +WjB8MQswCQYDVQQGEwJVUzEOMAwGA1UECAwFVGV4YXMxEDAOBgNVBAcMB0hvdXN0 +b24xGDAWBgNVBAoMD1NTTCBDb3Jwb3JhdGlvbjExMC8GA1UEAwwoU1NMLmNvbSBS +b290IENlcnRpZmljYXRpb24gQXV0aG9yaXR5IEVDQzB2MBAGByqGSM49AgEGBSuB +BAAiA2IABEVuqVDEpiM2nl8ojRfLliJkP9x6jh3MCLOicSS6jkm5BBtHllirLZXI +7Z4INcgn64mMU1jrYor+8FsPazFSY0E7ic3s7LaNGdM0B9y7xgZ/wkWV7Mt/qCPg +CemB+vNH06NjMGEwHQYDVR0OBBYEFILRhXMw5zUE044CkvvlpNHEIejNMA8GA1Ud +EwEB/wQFMAMBAf8wHwYDVR0jBBgwFoAUgtGFczDnNQTTjgKS++Wk0cQh6M0wDgYD +VR0PAQH/BAQDAgGGMAoGCCqGSM49BAMCA2cAMGQCMG/n61kRpGDPYbCWe+0F+S8T +kdzt5fxQaxFGRrMcIQBiu77D5+jNB5n5DQtdcj7EqgIwH7y6C+IwJPt8bYBVCpk+ 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All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import logging + +from botocore import ( + UNSIGNED, # noqa: F401 + waiter, + xform_name, +) +from botocore.args import ClientArgsCreator +from botocore.auth import AUTH_TYPE_MAPS, resolve_auth_type +from botocore.awsrequest import prepare_request_dict +from botocore.compress import maybe_compress_request +from botocore.config import Config +from botocore.context import with_current_context +from botocore.credentials import RefreshableCredentials +from botocore.discovery import ( + EndpointDiscoveryHandler, + EndpointDiscoveryManager, + block_endpoint_discovery_required_operations, +) +from botocore.docs.docstring import ClientMethodDocstring, PaginatorDocstring +from botocore.exceptions import ( + ClientError, # noqa: F401 + DataNotFoundError, + InvalidEndpointDiscoveryConfigurationError, + OperationNotPageableError, + UnknownServiceError, + UnknownSignatureVersionError, +) +from botocore.history import get_global_history_recorder +from botocore.hooks import first_non_none_response +from botocore.httpchecksum import ( + apply_request_checksum, + resolve_checksum_context, +) +from botocore.model import ServiceModel +from botocore.paginate import Paginator +from botocore.retries import adaptive, standard +from botocore.useragent import UserAgentString, register_feature_id +from botocore.utils import ( + CachedProperty, + EventbridgeSignerSetter, + S3ArnParamHandler, # noqa: F401 + S3ControlArnParamHandler, # noqa: F401 + S3ControlArnParamHandlerv2, + S3ControlEndpointSetter, # noqa: F401 + S3EndpointSetter, # noqa: F401 + S3ExpressIdentityResolver, + S3RegionRedirector, # noqa: F401 + S3RegionRedirectorv2, + ensure_boolean, + get_service_module_name, +) + +logger = logging.getLogger(__name__) +history_recorder = get_global_history_recorder() + + +class ClientCreator: + """Creates client objects for a service.""" + + def __init__( + self, + loader, + endpoint_resolver, + user_agent, + event_emitter, + retry_handler_factory, + retry_config_translator, + response_parser_factory=None, + exceptions_factory=None, + config_store=None, + user_agent_creator=None, + auth_token_resolver=None, + ): + self._loader = loader + self._endpoint_resolver = endpoint_resolver + self._user_agent = user_agent + self._event_emitter = event_emitter + self._retry_handler_factory = retry_handler_factory + self._retry_config_translator = retry_config_translator + self._response_parser_factory = response_parser_factory + self._exceptions_factory = exceptions_factory + # TODO: Migrate things away from scoped_config in favor of the + # config_store. The config store can pull things from both the scoped + # config and environment variables (and potentially more in the + # future). + self._config_store = config_store + self._user_agent_creator = user_agent_creator + self._auth_token_resolver = auth_token_resolver + + def create_client( + self, + service_name, + region_name, + is_secure=True, + endpoint_url=None, + verify=None, + credentials=None, + scoped_config=None, + api_version=None, + client_config=None, + auth_token=None, + ): + responses = self._event_emitter.emit( + 'choose-service-name', service_name=service_name + ) + service_name = first_non_none_response(responses, default=service_name) + service_model = self._load_service_model(service_name, api_version) + try: + endpoints_ruleset_data = self._load_service_endpoints_ruleset( + service_name, api_version + ) + partition_data = self._loader.load_data('partitions') + except UnknownServiceError: + endpoints_ruleset_data = None + partition_data = None + logger.info( + 'No endpoints ruleset found for service %s, falling back to ' + 'legacy endpoint routing.', + service_name, + ) + + cls = self._create_client_class(service_name, service_model) + region_name, client_config = self._normalize_fips_region( + region_name, client_config + ) + if auth := service_model.metadata.get('auth'): + service_signature_version = resolve_auth_type(auth) + else: + service_signature_version = service_model.metadata.get( + 'signatureVersion' + ) + endpoint_bridge = ClientEndpointBridge( + self._endpoint_resolver, + scoped_config, + client_config, + service_signing_name=service_model.metadata.get('signingName'), + config_store=self._config_store, + service_signature_version=service_signature_version, + ) + if token := self._evaluate_client_specific_token( + service_model.signing_name + ): + auth_token = token + client_args = self._get_client_args( + service_model, + region_name, + is_secure, + endpoint_url, + verify, + credentials, + scoped_config, + client_config, + endpoint_bridge, + auth_token, + endpoints_ruleset_data, + partition_data, + ) + service_client = cls(**client_args) + self._register_retries(service_client) + self._register_s3_events( + client=service_client, + endpoint_bridge=None, + endpoint_url=None, + client_config=client_config, + scoped_config=scoped_config, + ) + self._register_s3express_events(client=service_client) + self._register_s3_control_events(client=service_client) + self._register_importexport_events(client=service_client) + self._register_endpoint_discovery( + service_client, endpoint_url, client_config + ) + return service_client + + def create_client_class(self, service_name, api_version=None): + service_model = self._load_service_model(service_name, api_version) + return self._create_client_class(service_name, service_model) + + def _create_client_class(self, service_name, service_model): + class_attributes = self._create_methods(service_model) + py_name_to_operation_name = self._create_name_mapping(service_model) + class_attributes['_PY_TO_OP_NAME'] = py_name_to_operation_name + bases = [BaseClient] + service_id = service_model.service_id.hyphenize() + self._event_emitter.emit( + f'creating-client-class.{service_id}', + class_attributes=class_attributes, + base_classes=bases, + ) + class_name = get_service_module_name(service_model) + cls = type(str(class_name), tuple(bases), class_attributes) + return cls + + def _normalize_fips_region(self, region_name, client_config): + if region_name is not None: + normalized_region_name = region_name.replace('fips-', '').replace( + '-fips', '' + ) + # If region has been transformed then set flag + if normalized_region_name != region_name: + config_use_fips_endpoint = Config(use_fips_endpoint=True) + if client_config: + # Keeping endpoint setting client specific + client_config = client_config.merge( + config_use_fips_endpoint + ) + else: + client_config = config_use_fips_endpoint + logger.warning( + 'transforming region from %s to %s and setting ' + 'use_fips_endpoint to true. client should not ' + 'be configured with a fips psuedo region.', + region_name, + normalized_region_name, + ) + region_name = normalized_region_name + return region_name, client_config + + def _load_service_model(self, service_name, api_version=None): + json_model = self._loader.load_service_model( + service_name, 'service-2', api_version=api_version + ) + service_model = ServiceModel(json_model, service_name=service_name) + return service_model + + def _load_service_endpoints_ruleset(self, service_name, api_version=None): + return self._loader.load_service_model( + service_name, 'endpoint-rule-set-1', api_version=api_version + ) + + def _register_retries(self, client): + retry_mode = client.meta.config.retries['mode'] + if retry_mode == 'standard': + self._register_v2_standard_retries(client) + elif retry_mode == 'adaptive': + self._register_v2_standard_retries(client) + self._register_v2_adaptive_retries(client) + elif retry_mode == 'legacy': + self._register_legacy_retries(client) + else: + return + register_feature_id(f'RETRY_MODE_{retry_mode.upper()}') + + def _register_v2_standard_retries(self, client): + max_attempts = client.meta.config.retries.get('total_max_attempts') + kwargs = {'client': client} + if max_attempts is not None: + kwargs['max_attempts'] = max_attempts + standard.register_retry_handler(**kwargs) + + def _register_v2_adaptive_retries(self, client): + adaptive.register_retry_handler(client) + + def _register_legacy_retries(self, client): + endpoint_prefix = client.meta.service_model.endpoint_prefix + service_id = client.meta.service_model.service_id + service_event_name = service_id.hyphenize() + + # First, we load the entire retry config for all services, + # then pull out just the information we need. + original_config = self._loader.load_data('_retry') + if not original_config: + return + + retries = self._transform_legacy_retries(client.meta.config.retries) + retry_config = self._retry_config_translator.build_retry_config( + endpoint_prefix, + original_config.get('retry', {}), + original_config.get('definitions', {}), + retries, + ) + + logger.debug( + "Registering retry handlers for service: %s", + client.meta.service_model.service_name, + ) + handler = self._retry_handler_factory.create_retry_handler( + retry_config, endpoint_prefix + ) + unique_id = f'retry-config-{service_event_name}' + client.meta.events.register( + f"needs-retry.{service_event_name}", handler, unique_id=unique_id + ) + + def _transform_legacy_retries(self, retries): + if retries is None: + return + copied_args = retries.copy() + if 'total_max_attempts' in retries: + copied_args = retries.copy() + copied_args['max_attempts'] = ( + copied_args.pop('total_max_attempts') - 1 + ) + return copied_args + + def _get_retry_mode(self, client, config_store): + client_retries = client.meta.config.retries + if ( + client_retries is not None + and client_retries.get('mode') is not None + ): + return client_retries['mode'] + return config_store.get_config_variable('retry_mode') or 'legacy' + + def _register_endpoint_discovery(self, client, endpoint_url, config): + if endpoint_url is not None: + # Don't register any handlers in the case of a custom endpoint url + return + # Only attach handlers if the service supports discovery + if client.meta.service_model.endpoint_discovery_operation is None: + return + events = client.meta.events + service_id = client.meta.service_model.service_id.hyphenize() + enabled = False + if config and config.endpoint_discovery_enabled is not None: + enabled = config.endpoint_discovery_enabled + elif self._config_store: + enabled = self._config_store.get_config_variable( + 'endpoint_discovery_enabled' + ) + + enabled = self._normalize_endpoint_discovery_config(enabled) + if enabled and self._requires_endpoint_discovery(client, enabled): + discover = enabled is True + manager = EndpointDiscoveryManager( + client, always_discover=discover + ) + handler = EndpointDiscoveryHandler(manager) + handler.register(events, service_id) + else: + events.register( + 'before-parameter-build', + block_endpoint_discovery_required_operations, + ) + + def _normalize_endpoint_discovery_config(self, enabled): + """Config must either be a boolean-string or string-literal 'auto'""" + if isinstance(enabled, str): + enabled = enabled.lower().strip() + if enabled == 'auto': + return enabled + elif enabled in ('true', 'false'): + return ensure_boolean(enabled) + elif isinstance(enabled, bool): + return enabled + + raise InvalidEndpointDiscoveryConfigurationError(config_value=enabled) + + def _requires_endpoint_discovery(self, client, enabled): + if enabled == "auto": + return client.meta.service_model.endpoint_discovery_required + return enabled + + def _register_eventbridge_events( + self, client, endpoint_bridge, endpoint_url + ): + if client.meta.service_model.service_name != 'events': + return + EventbridgeSignerSetter( + endpoint_resolver=self._endpoint_resolver, + region=client.meta.region_name, + endpoint_url=endpoint_url, + ).register(client.meta.events) + + def _register_s3express_events( + self, + client, + endpoint_bridge=None, + endpoint_url=None, + client_config=None, + scoped_config=None, + ): + if client.meta.service_model.service_name != 's3': + return + S3ExpressIdentityResolver(client, RefreshableCredentials).register() + + def _register_s3_events( + self, + client, + endpoint_bridge, + endpoint_url, + client_config, + scoped_config, + ): + if client.meta.service_model.service_name != 's3': + return + S3RegionRedirectorv2(None, client).register() + self._set_s3_presign_signature_version( + client.meta, client_config, scoped_config + ) + client.meta.events.register( + 'before-parameter-build.s3', self._inject_s3_input_parameters + ) + + def _register_s3_control_events( + self, + client, + endpoint_bridge=None, + endpoint_url=None, + client_config=None, + scoped_config=None, + ): + if client.meta.service_model.service_name != 's3control': + return + S3ControlArnParamHandlerv2().register(client.meta.events) + + def _set_s3_presign_signature_version( + self, client_meta, client_config, scoped_config + ): + # This will return the manually configured signature version, or None + # if none was manually set. If a customer manually sets the signature + # version, we always want to use what they set. + provided_signature_version = _get_configured_signature_version( + 's3', client_config, scoped_config + ) + if provided_signature_version is not None: + return + + # Check to see if the region is a region that we know about. If we + # don't know about a region, then we can safely assume it's a new + # region that is sigv4 only, since all new S3 regions only allow sigv4. + # The only exception is aws-global. This is a pseudo-region for the + # global endpoint, we should respect the signature versions it + # supports, which includes v2. + regions = self._endpoint_resolver.get_available_endpoints( + 's3', client_meta.partition + ) + if ( + client_meta.region_name != 'aws-global' + and client_meta.region_name not in regions + ): + return + + # If it is a region we know about, we want to default to sigv2, so here + # we check to see if it is available. + endpoint = self._endpoint_resolver.construct_endpoint( + 's3', client_meta.region_name + ) + signature_versions = endpoint['signatureVersions'] + if 's3' not in signature_versions: + return + + # We now know that we're in a known region that supports sigv2 and + # the customer hasn't set a signature version so we default the + # signature version to sigv2. + client_meta.events.register( + 'choose-signer.s3', self._default_s3_presign_to_sigv2 + ) + + def _inject_s3_input_parameters(self, params, context, **kwargs): + context['input_params'] = {} + inject_parameters = ('Bucket', 'Delete', 'Key', 'Prefix') + for inject_parameter in inject_parameters: + if inject_parameter in params: + context['input_params'][inject_parameter] = params[ + inject_parameter + ] + + def _default_s3_presign_to_sigv2(self, signature_version, **kwargs): + """ + Returns the 's3' (sigv2) signer if presigning an s3 request. This is + intended to be used to set the default signature version for the signer + to sigv2. Situations where an asymmetric signature is required are the + exception, for example MRAP needs v4a. + + :type signature_version: str + :param signature_version: The current client signature version. + + :type signing_name: str + :param signing_name: The signing name of the service. + + :return: 's3' if the request is an s3 presign request, None otherwise + """ + if signature_version.startswith('v4a'): + return + + if signature_version.startswith('v4-s3express'): + return signature_version + + for suffix in ['-query', '-presign-post']: + if signature_version.endswith(suffix): + return f's3{suffix}' + + def _register_importexport_events( + self, + client, + endpoint_bridge=None, + endpoint_url=None, + client_config=None, + scoped_config=None, + ): + if client.meta.service_model.service_name != 'importexport': + return + self._set_importexport_signature_version( + client.meta, client_config, scoped_config + ) + + def _set_importexport_signature_version( + self, client_meta, client_config, scoped_config + ): + # This will return the manually configured signature version, or None + # if none was manually set. If a customer manually sets the signature + # version, we always want to use what they set. + configured_signature_version = _get_configured_signature_version( + 'importexport', client_config, scoped_config + ) + if configured_signature_version is not None: + return + + # importexport has a modeled signatureVersion of v2, but we + # previously switched to v4 via endpoint.json before endpoint rulesets. + # Override the model's signatureVersion for backwards compatability. + client_meta.events.register( + 'choose-signer.importexport', self._default_signer_to_sigv4 + ) + + def _default_signer_to_sigv4(self, signature_version, **kwargs): + return 'v4' + + def _get_client_args( + self, + service_model, + region_name, + is_secure, + endpoint_url, + verify, + credentials, + scoped_config, + client_config, + endpoint_bridge, + auth_token, + endpoints_ruleset_data, + partition_data, + ): + args_creator = ClientArgsCreator( + self._event_emitter, + self._user_agent, + self._response_parser_factory, + self._loader, + self._exceptions_factory, + config_store=self._config_store, + user_agent_creator=self._user_agent_creator, + ) + return args_creator.get_client_args( + service_model, + region_name, + is_secure, + endpoint_url, + verify, + credentials, + scoped_config, + client_config, + endpoint_bridge, + auth_token, + endpoints_ruleset_data, + partition_data, + ) + + def _create_methods(self, service_model): + op_dict = {} + for operation_name in service_model.operation_names: + py_operation_name = xform_name(operation_name) + op_dict[py_operation_name] = self._create_api_method( + py_operation_name, operation_name, service_model + ) + return op_dict + + def _create_name_mapping(self, service_model): + # py_name -> OperationName, for every operation available + # for a service. + mapping = {} + for operation_name in service_model.operation_names: + py_operation_name = xform_name(operation_name) + mapping[py_operation_name] = operation_name + return mapping + + def _create_api_method( + self, py_operation_name, operation_name, service_model + ): + def _api_call(self, *args, **kwargs): + # We're accepting *args so that we can give a more helpful + # error message than TypeError: _api_call takes exactly + # 1 argument. + if args: + raise TypeError( + f"{py_operation_name}() only accepts keyword arguments." + ) + # The "self" in this scope is referring to the BaseClient. + return self._make_api_call(operation_name, kwargs) + + _api_call.__name__ = str(py_operation_name) + + # Add the docstring to the client method + operation_model = service_model.operation_model(operation_name) + docstring = ClientMethodDocstring( + operation_model=operation_model, + method_name=operation_name, + event_emitter=self._event_emitter, + method_description=operation_model.documentation, + example_prefix=f'response = client.{py_operation_name}', + include_signature=False, + ) + _api_call.__doc__ = docstring + return _api_call + + def _evaluate_client_specific_token(self, signing_name): + # Resolves an auth_token for the given signing_name. + # Returns None if no resolver is set or if resolution fails. + resolver = self._auth_token_resolver + if not resolver or not signing_name: + return None + + return resolver(signing_name=signing_name) + + +class ClientEndpointBridge: + """Bridges endpoint data and client creation + + This class handles taking out the relevant arguments from the endpoint + resolver and determining which values to use, taking into account any + client configuration options and scope configuration options. + + This class also handles determining what, if any, region to use if no + explicit region setting is provided. For example, Amazon S3 client will + utilize "us-east-1" by default if no region can be resolved.""" + + DEFAULT_ENDPOINT = '{service}.{region}.amazonaws.com' + _DUALSTACK_CUSTOMIZED_SERVICES = ['s3', 's3-control'] + + def __init__( + self, + endpoint_resolver, + scoped_config=None, + client_config=None, + default_endpoint=None, + service_signing_name=None, + config_store=None, + service_signature_version=None, + ): + self.service_signing_name = service_signing_name + self.endpoint_resolver = endpoint_resolver + self.scoped_config = scoped_config + self.client_config = client_config + self.default_endpoint = default_endpoint or self.DEFAULT_ENDPOINT + self.config_store = config_store + self.service_signature_version = service_signature_version + + def resolve( + self, service_name, region_name=None, endpoint_url=None, is_secure=True + ): + region_name = self._check_default_region(service_name, region_name) + use_dualstack_endpoint = self._resolve_use_dualstack_endpoint( + service_name + ) + use_fips_endpoint = self._resolve_endpoint_variant_config_var( + 'use_fips_endpoint' + ) + resolved = self.endpoint_resolver.construct_endpoint( + service_name, + region_name, + use_dualstack_endpoint=use_dualstack_endpoint, + use_fips_endpoint=use_fips_endpoint, + ) + + # If we can't resolve the region, we'll attempt to get a global + # endpoint for non-regionalized services (iam, route53, etc) + if not resolved: + # TODO: fallback partition_name should be configurable in the + # future for users to define as needed. + resolved = self.endpoint_resolver.construct_endpoint( + service_name, + region_name, + partition_name='aws', + use_dualstack_endpoint=use_dualstack_endpoint, + use_fips_endpoint=use_fips_endpoint, + ) + + if resolved: + return self._create_endpoint( + resolved, service_name, region_name, endpoint_url, is_secure + ) + else: + return self._assume_endpoint( + service_name, region_name, endpoint_url, is_secure + ) + + def resolver_uses_builtin_data(self): + return self.endpoint_resolver.uses_builtin_data + + def _check_default_region(self, service_name, region_name): + if region_name is not None: + return region_name + # Use the client_config region if no explicit region was provided. + if self.client_config and self.client_config.region_name is not None: + return self.client_config.region_name + + def _create_endpoint( + self, resolved, service_name, region_name, endpoint_url, is_secure + ): + region_name, signing_region = self._pick_region_values( + resolved, region_name, endpoint_url + ) + if endpoint_url is None: + endpoint_url = self._make_url( + resolved.get('hostname'), + is_secure, + resolved.get('protocols', []), + ) + signature_version = self._resolve_signature_version( + service_name, resolved + ) + signing_name = self._resolve_signing_name(service_name, resolved) + return self._create_result( + service_name=service_name, + region_name=region_name, + signing_region=signing_region, + signing_name=signing_name, + endpoint_url=endpoint_url, + metadata=resolved, + signature_version=signature_version, + ) + + def _resolve_endpoint_variant_config_var(self, config_var): + client_config = self.client_config + config_val = False + + # Client configuration arg has precedence + if client_config and getattr(client_config, config_var) is not None: + return getattr(client_config, config_var) + elif self.config_store is not None: + # Check config store + config_val = self.config_store.get_config_variable(config_var) + return config_val + + def _resolve_use_dualstack_endpoint(self, service_name): + s3_dualstack_mode = self._is_s3_dualstack_mode(service_name) + if s3_dualstack_mode is not None: + return s3_dualstack_mode + return self._resolve_endpoint_variant_config_var( + 'use_dualstack_endpoint' + ) + + def _is_s3_dualstack_mode(self, service_name): + if service_name not in self._DUALSTACK_CUSTOMIZED_SERVICES: + return None + # TODO: This normalization logic is duplicated from the + # ClientArgsCreator class. Consolidate everything to + # ClientArgsCreator. _resolve_signature_version also has similarly + # duplicated logic. + client_config = self.client_config + if ( + client_config is not None + and client_config.s3 is not None + and 'use_dualstack_endpoint' in client_config.s3 + ): + # Client config trumps scoped config. + return client_config.s3['use_dualstack_endpoint'] + if self.scoped_config is not None: + enabled = self.scoped_config.get('s3', {}).get( + 'use_dualstack_endpoint' + ) + if enabled in [True, 'True', 'true']: + return True + + def _assume_endpoint( + self, service_name, region_name, endpoint_url, is_secure + ): + if endpoint_url is None: + # Expand the default hostname URI template. + hostname = self.default_endpoint.format( + service=service_name, region=region_name + ) + endpoint_url = self._make_url( + hostname, is_secure, ['http', 'https'] + ) + logger.debug( + 'Assuming an endpoint for %s, %s: %s', + service_name, + region_name, + endpoint_url, + ) + # We still want to allow the user to provide an explicit version. + signature_version = self._resolve_signature_version( + service_name, {'signatureVersions': ['v4']} + ) + signing_name = self._resolve_signing_name(service_name, resolved={}) + return self._create_result( + service_name=service_name, + region_name=region_name, + signing_region=region_name, + signing_name=signing_name, + signature_version=signature_version, + endpoint_url=endpoint_url, + metadata={}, + ) + + def _create_result( + self, + service_name, + region_name, + signing_region, + signing_name, + endpoint_url, + signature_version, + metadata, + ): + return { + 'service_name': service_name, + 'region_name': region_name, + 'signing_region': signing_region, + 'signing_name': signing_name, + 'endpoint_url': endpoint_url, + 'signature_version': signature_version, + 'metadata': metadata, + } + + def _make_url(self, hostname, is_secure, supported_protocols): + if is_secure and 'https' in supported_protocols: + scheme = 'https' + else: + scheme = 'http' + return f'{scheme}://{hostname}' + + def _resolve_signing_name(self, service_name, resolved): + # CredentialScope overrides everything else. + if ( + 'credentialScope' in resolved + and 'service' in resolved['credentialScope'] + ): + return resolved['credentialScope']['service'] + # Use the signingName from the model if present. + if self.service_signing_name: + return self.service_signing_name + # Just assume is the same as the service name. + return service_name + + def _pick_region_values(self, resolved, region_name, endpoint_url): + signing_region = region_name + if endpoint_url is None: + # Do not use the region name or signing name from the resolved + # endpoint if the user explicitly provides an endpoint_url. This + # would happen if we resolve to an endpoint where the service has + # a "defaults" section that overrides all endpoint with a single + # hostname and credentialScope. This has been the case historically + # for how STS has worked. The only way to resolve an STS endpoint + # was to provide a region_name and an endpoint_url. In that case, + # we would still resolve an endpoint, but we would not use the + # resolved endpointName or signingRegion because we want to allow + # custom endpoints. + region_name = resolved['endpointName'] + signing_region = region_name + if ( + 'credentialScope' in resolved + and 'region' in resolved['credentialScope'] + ): + signing_region = resolved['credentialScope']['region'] + return region_name, signing_region + + def _resolve_signature_version(self, service_name, resolved): + configured_version = _get_configured_signature_version( + service_name, self.client_config, self.scoped_config + ) + if configured_version is not None: + return configured_version + + # These have since added the "auth" key to the service model + # with "aws.auth#sigv4", but preserve existing behavior from + # when we preferred endpoints.json over the service models + if service_name in ('s3', 's3-control'): + return 's3v4' + + if self.service_signature_version is not None: + # Prefer the service model + potential_versions = [self.service_signature_version] + else: + # Fall back to endpoints.json to preserve existing behavior, which + # may be useful for users who have custom service models + potential_versions = resolved.get('signatureVersions', []) + # This was added for the V2 -> V4 transition, + # for services that added V4 after V2 in endpoints.json + if 'v4' in potential_versions: + return 'v4' + # Now just iterate over the signature versions in order until we + # find the first one that is known to Botocore. + for known in potential_versions: + if known in AUTH_TYPE_MAPS: + return known + + raise UnknownSignatureVersionError( + signature_version=potential_versions + ) + + +class BaseClient: + # This is actually reassigned with the py->op_name mapping + # when the client creator creates the subclass. This value is used + # because calls such as client.get_paginator('list_objects') use the + # snake_case name, but we need to know the ListObjects form. + # xform_name() does the ListObjects->list_objects conversion, but + # we need the reverse mapping here. + _PY_TO_OP_NAME = {} + + def __init__( + self, + serializer, + endpoint, + response_parser, + event_emitter, + request_signer, + service_model, + loader, + client_config, + partition, + exceptions_factory, + endpoint_ruleset_resolver=None, + user_agent_creator=None, + ): + self._serializer = serializer + self._endpoint = endpoint + self._ruleset_resolver = endpoint_ruleset_resolver + self._response_parser = response_parser + self._request_signer = request_signer + self._cache = {} + self._loader = loader + self._client_config = client_config + self.meta = ClientMeta( + event_emitter, + self._client_config, + endpoint.host, + service_model, + self._PY_TO_OP_NAME, + partition, + ) + self._exceptions_factory = exceptions_factory + self._exceptions = None + self._user_agent_creator = user_agent_creator + if self._user_agent_creator is None: + self._user_agent_creator = ( + UserAgentString.from_environment().with_client_config( + self._client_config + ) + ) + self._register_handlers() + + def __getattr__(self, item): + service_id = self._service_model.service_id.hyphenize() + event_name = f'getattr.{service_id}.{item}' + + handler, event_response = self.meta.events.emit_until_response( + event_name, client=self + ) + + if event_response is not None: + return event_response + + raise AttributeError( + f"'{self.__class__.__name__}' object has no attribute '{item}'" + ) + + def close(self): + """Closes underlying endpoint connections.""" + self._endpoint.close() + + def _register_handlers(self): + # Register the handler required to sign requests. + service_id = self.meta.service_model.service_id.hyphenize() + self.meta.events.register( + f"request-created.{service_id}", self._request_signer.handler + ) + # Rebuild user agent string right before request is sent + # to ensure all registered features are included. + self.meta.events.register_last( + f"request-created.{service_id}", + self._user_agent_creator.rebuild_and_replace_user_agent_handler, + ) + + @property + def _service_model(self): + return self.meta.service_model + + @with_current_context() + def _make_api_call(self, operation_name, api_params): + operation_model = self._service_model.operation_model(operation_name) + service_name = self._service_model.service_name + history_recorder.record( + 'API_CALL', + { + 'service': service_name, + 'operation': operation_name, + 'params': api_params, + }, + ) + if operation_model.deprecated: + logger.debug( + 'Warning: %s.%s() is deprecated', service_name, operation_name + ) + request_context = { + 'client_region': self.meta.region_name, + 'client_config': self.meta.config, + 'has_streaming_input': operation_model.has_streaming_input, + 'auth_type': operation_model.resolved_auth_type, + 'unsigned_payload': operation_model.unsigned_payload, + 'auth_options': self._service_model.metadata.get('auth'), + } + + api_params = self._emit_api_params( + api_params=api_params, + operation_model=operation_model, + context=request_context, + ) + ( + endpoint_url, + additional_headers, + properties, + ) = self._resolve_endpoint_ruleset( + operation_model, api_params, request_context + ) + if properties: + # Pass arbitrary endpoint info with the Request + # for use during construction. + request_context['endpoint_properties'] = properties + request_dict = self._convert_to_request_dict( + api_params=api_params, + operation_model=operation_model, + endpoint_url=endpoint_url, + context=request_context, + headers=additional_headers, + ) + resolve_checksum_context(request_dict, operation_model, api_params) + + service_id = self._service_model.service_id.hyphenize() + handler, event_response = self.meta.events.emit_until_response( + f'before-call.{service_id}.{operation_name}', + model=operation_model, + params=request_dict, + request_signer=self._request_signer, + context=request_context, + ) + + if event_response is not None: + http, parsed_response = event_response + else: + maybe_compress_request( + self.meta.config, request_dict, operation_model + ) + apply_request_checksum(request_dict) + http, parsed_response = self._make_request( + operation_model, request_dict, request_context + ) + + self.meta.events.emit( + f'after-call.{service_id}.{operation_name}', + http_response=http, + parsed=parsed_response, + model=operation_model, + context=request_context, + ) + + if http.status_code >= 300: + error_info = parsed_response.get("Error", {}) + error_code = request_context.get( + 'error_code_override' + ) or error_info.get("Code") + error_class = self.exceptions.from_code(error_code) + raise error_class(parsed_response, operation_name) + else: + return parsed_response + + def _make_request(self, operation_model, request_dict, request_context): + try: + return self._endpoint.make_request(operation_model, request_dict) + except Exception as e: + self.meta.events.emit( + f'after-call-error.{self._service_model.service_id.hyphenize()}.{operation_model.name}', + exception=e, + context=request_context, + ) + raise + + def _convert_to_request_dict( + self, + api_params, + operation_model, + endpoint_url, + context=None, + headers=None, + set_user_agent_header=True, + ): + request_dict = self._serializer.serialize_to_request( + api_params, operation_model + ) + if not self._client_config.inject_host_prefix: + request_dict.pop('host_prefix', None) + if headers is not None: + request_dict['headers'].update(headers) + if set_user_agent_header: + user_agent = self._user_agent_creator.to_string() + else: + user_agent = None + prepare_request_dict( + request_dict, + endpoint_url=endpoint_url, + user_agent=user_agent, + context=context, + ) + return request_dict + + def _emit_api_params(self, api_params, operation_model, context): + # Given the API params provided by the user and the operation_model + # we can serialize the request to a request_dict. + operation_name = operation_model.name + + # Emit an event that allows users to modify the parameters at the + # beginning of the method. It allows handlers to modify existing + # parameters or return a new set of parameters to use. + service_id = self._service_model.service_id.hyphenize() + responses = self.meta.events.emit( + f'provide-client-params.{service_id}.{operation_name}', + params=api_params, + model=operation_model, + context=context, + ) + api_params = first_non_none_response(responses, default=api_params) + + self.meta.events.emit( + f'before-parameter-build.{service_id}.{operation_name}', + params=api_params, + model=operation_model, + context=context, + ) + return api_params + + def _resolve_endpoint_ruleset( + self, + operation_model, + params, + request_context, + ignore_signing_region=False, + ): + """Returns endpoint URL and list of additional headers returned from + EndpointRulesetResolver for the given operation and params. If the + ruleset resolver is not available, for example because the service has + no endpoints ruleset file, the legacy endpoint resolver's value is + returned. + + Use ignore_signing_region for generating presigned URLs or any other + situation where the signing region information from the ruleset + resolver should be ignored. + + Returns tuple of URL and headers dictionary. Additionally, the + request_context dict is modified in place with any signing information + returned from the ruleset resolver. + """ + if self._ruleset_resolver is None: + endpoint_url = self.meta.endpoint_url + additional_headers = {} + endpoint_properties = {} + else: + endpoint_info = self._ruleset_resolver.construct_endpoint( + operation_model=operation_model, + call_args=params, + request_context=request_context, + ) + endpoint_url = endpoint_info.url + additional_headers = endpoint_info.headers + endpoint_properties = endpoint_info.properties + # If authSchemes is present, overwrite default auth type and + # signing context derived from service model. + auth_schemes = endpoint_info.properties.get('authSchemes') + if auth_schemes is not None: + auth_info = self._ruleset_resolver.auth_schemes_to_signing_ctx( + auth_schemes + ) + auth_type, signing_context = auth_info + request_context['auth_type'] = auth_type + if 'region' in signing_context and ignore_signing_region: + del signing_context['region'] + if 'signing' in request_context: + request_context['signing'].update(signing_context) + else: + request_context['signing'] = signing_context + + return endpoint_url, additional_headers, endpoint_properties + + def get_paginator(self, operation_name): + """Create a paginator for an operation. + + :type operation_name: string + :param operation_name: The operation name. This is the same name + as the method name on the client. For example, if the + method name is ``create_foo``, and you'd normally invoke the + operation as ``client.create_foo(**kwargs)``, if the + ``create_foo`` operation can be paginated, you can use the + call ``client.get_paginator("create_foo")``. + + :raise OperationNotPageableError: Raised if the operation is not + pageable. You can use the ``client.can_paginate`` method to + check if an operation is pageable. + + :rtype: ``botocore.paginate.Paginator`` + :return: A paginator object. + + """ + if not self.can_paginate(operation_name): + raise OperationNotPageableError(operation_name=operation_name) + else: + actual_operation_name = self._PY_TO_OP_NAME[operation_name] + + # Create a new paginate method that will serve as a proxy to + # the underlying Paginator.paginate method. This is needed to + # attach a docstring to the method. + def paginate(self, **kwargs): + return Paginator.paginate(self, **kwargs) + + paginator_config = self._cache['page_config'][ + actual_operation_name + ] + # Add the docstring for the paginate method. + paginate.__doc__ = PaginatorDocstring( + paginator_name=actual_operation_name, + event_emitter=self.meta.events, + service_model=self.meta.service_model, + paginator_config=paginator_config, + include_signature=False, + ) + + # Rename the paginator class based on the type of paginator. + service_module_name = get_service_module_name( + self.meta.service_model + ) + paginator_class_name = ( + f"{service_module_name}.Paginator.{actual_operation_name}" + ) + + # Create the new paginator class + documented_paginator_cls = type( + paginator_class_name, (Paginator,), {'paginate': paginate} + ) + + operation_model = self._service_model.operation_model( + actual_operation_name + ) + paginator = documented_paginator_cls( + getattr(self, operation_name), + paginator_config, + operation_model, + ) + return paginator + + def can_paginate(self, operation_name): + """Check if an operation can be paginated. + + :type operation_name: string + :param operation_name: The operation name. This is the same name + as the method name on the client. For example, if the + method name is ``create_foo``, and you'd normally invoke the + operation as ``client.create_foo(**kwargs)``, if the + ``create_foo`` operation can be paginated, you can use the + call ``client.get_paginator("create_foo")``. + + :return: ``True`` if the operation can be paginated, + ``False`` otherwise. + + """ + if 'page_config' not in self._cache: + try: + page_config = self._loader.load_service_model( + self._service_model.service_name, + 'paginators-1', + self._service_model.api_version, + )['pagination'] + self._cache['page_config'] = page_config + except DataNotFoundError: + self._cache['page_config'] = {} + actual_operation_name = self._PY_TO_OP_NAME[operation_name] + return actual_operation_name in self._cache['page_config'] + + def _get_waiter_config(self): + if 'waiter_config' not in self._cache: + try: + waiter_config = self._loader.load_service_model( + self._service_model.service_name, + 'waiters-2', + self._service_model.api_version, + ) + self._cache['waiter_config'] = waiter_config + except DataNotFoundError: + self._cache['waiter_config'] = {} + return self._cache['waiter_config'] + + def get_waiter(self, waiter_name): + """Returns an object that can wait for some condition. + + :type waiter_name: str + :param waiter_name: The name of the waiter to get. See the waiters + section of the service docs for a list of available waiters. + + :returns: The specified waiter object. + :rtype: ``botocore.waiter.Waiter`` + """ + config = self._get_waiter_config() + if not config: + raise ValueError(f"Waiter does not exist: {waiter_name}") + model = waiter.WaiterModel(config) + mapping = {} + for name in model.waiter_names: + mapping[xform_name(name)] = name + if waiter_name not in mapping: + raise ValueError(f"Waiter does not exist: {waiter_name}") + + return waiter.create_waiter_with_client( + mapping[waiter_name], model, self + ) + + @CachedProperty + def waiter_names(self): + """Returns a list of all available waiters.""" + config = self._get_waiter_config() + if not config: + return [] + model = waiter.WaiterModel(config) + # Waiter configs is a dict, we just want the waiter names + # which are the keys in the dict. + return [xform_name(name) for name in model.waiter_names] + + @property + def exceptions(self): + if self._exceptions is None: + self._exceptions = self._load_exceptions() + return self._exceptions + + def _load_exceptions(self): + return self._exceptions_factory.create_client_exceptions( + self._service_model + ) + + def _get_credentials(self): + """ + This private interface is subject to abrupt breaking changes, including + removal, in any botocore release. + """ + return self._request_signer._credentials + + +class ClientMeta: + """Holds additional client methods. + + This class holds additional information for clients. It exists for + two reasons: + + * To give advanced functionality to clients + * To namespace additional client attributes from the operation + names which are mapped to methods at runtime. This avoids + ever running into collisions with operation names. + + """ + + def __init__( + self, + events, + client_config, + endpoint_url, + service_model, + method_to_api_mapping, + partition, + ): + self.events = events + self._client_config = client_config + self._endpoint_url = endpoint_url + self._service_model = service_model + self._method_to_api_mapping = method_to_api_mapping + self._partition = partition + + @property + def service_model(self): + return self._service_model + + @property + def region_name(self): + return self._client_config.region_name + + @property + def endpoint_url(self): + return self._endpoint_url + + @property + def config(self): + return self._client_config + + @property + def method_to_api_mapping(self): + return self._method_to_api_mapping + + @property + def partition(self): + return self._partition + + +def _get_configured_signature_version( + service_name, client_config, scoped_config +): + """ + Gets the manually configured signature version. + + :returns: the customer configured signature version, or None if no + signature version was configured. + """ + # Client config overrides everything. + if client_config and client_config.signature_version is not None: + return client_config.signature_version + + # Scoped config overrides picking from the endpoint metadata. + if scoped_config is not None: + # A given service may have service specific configuration in the + # config file, so we need to check there as well. + service_config = scoped_config.get(service_name) + if service_config is not None and isinstance(service_config, dict): + version = service_config.get('signature_version') + if version: + logger.debug( + "Switching signature version for service %s " + "to version %s based on config file override.", + service_name, + version, + ) + return version + return None diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/compat.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/compat.py new file mode 100644 index 0000000000000000000000000000000000000000..a457f4381f8642d80df86a4e1d875f7e2138f1cd --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/compat.py @@ -0,0 +1,365 @@ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. + +import copy +import datetime +import sys +import inspect +import warnings +import hashlib +from http.client import HTTPMessage +import logging +import shlex +import re +import os +from collections import OrderedDict +from collections.abc import MutableMapping +from math import floor + +from botocore.vendored import six +from botocore.exceptions import MD5UnavailableError +from dateutil.tz import tzlocal +from urllib3 import exceptions + +logger = logging.getLogger(__name__) + + +class HTTPHeaders(HTTPMessage): + pass + +from urllib.parse import ( + quote, + urlencode, + unquote, + unquote_plus, + urlparse, + urlsplit, + urlunsplit, + urljoin, + parse_qsl, + parse_qs, +) +from http.client import HTTPResponse +from io import IOBase as _IOBase +from base64 import encodebytes +from email.utils import formatdate +from itertools import zip_longest +file_type = _IOBase +zip = zip + +# In python3, unquote takes a str() object, url decodes it, +# then takes the bytestring and decodes it to utf-8. +unquote_str = unquote_plus + +def set_socket_timeout(http_response, timeout): + """Set the timeout of the socket from an HTTPResponse. + + :param http_response: An instance of ``httplib.HTTPResponse`` + + """ + http_response._fp.fp.raw._sock.settimeout(timeout) + +def accepts_kwargs(func): + return inspect.getfullargspec(func)[2] + +def ensure_unicode(s, encoding=None, errors=None): + # NOOP in Python 3, because every string is already unicode + return s + +def ensure_bytes(s, encoding='utf-8', errors='strict'): + if isinstance(s, str): + return s.encode(encoding, errors) + if isinstance(s, bytes): + return s + raise ValueError(f"Expected str or bytes, received {type(s)}.") + + +import xml.etree.ElementTree as ETree +XMLParseError = ETree.ParseError + +import json + + +def filter_ssl_warnings(): + # Ignore warnings related to SNI as it is not being used in validations. + warnings.filterwarnings( + 'ignore', + message="A true SSLContext object is not available.*", + category=exceptions.InsecurePlatformWarning, + module=r".*urllib3\.util\.ssl_", + ) + + +@classmethod +def from_dict(cls, d): + new_instance = cls() + for key, value in d.items(): + new_instance[key] = value + return new_instance + + +@classmethod +def from_pairs(cls, pairs): + new_instance = cls() + for key, value in pairs: + new_instance[key] = value + return new_instance + + +HTTPHeaders.from_dict = from_dict +HTTPHeaders.from_pairs = from_pairs + + +def copy_kwargs(kwargs): + """ + This used to be a compat shim for 2.6 but is now just an alias. + """ + copy_kwargs = copy.copy(kwargs) + return copy_kwargs + + +def total_seconds(delta): + """ + Returns the total seconds in a ``datetime.timedelta``. + + This used to be a compat shim for 2.6 but is now just an alias. + + :param delta: The timedelta object + :type delta: ``datetime.timedelta`` + """ + return delta.total_seconds() + + +# Checks to see if md5 is available on this system. A given system might not +# have access to it for various reasons, such as FIPS mode being enabled. +try: + hashlib.md5(usedforsecurity=False) + MD5_AVAILABLE = True +except (AttributeError, ValueError): + MD5_AVAILABLE = False + + +def get_md5(*args, **kwargs): + """ + Attempts to get an md5 hashing object. + + :param args: Args to pass to the MD5 constructor + :param kwargs: Key word arguments to pass to the MD5 constructor + :return: An MD5 hashing object if available. If it is unavailable, None + is returned if raise_error_if_unavailable is set to False. + """ + if MD5_AVAILABLE: + return hashlib.md5(*args, **kwargs) + else: + raise MD5UnavailableError() + + +def compat_shell_split(s, platform=None): + if platform is None: + platform = sys.platform + + if platform == "win32": + return _windows_shell_split(s) + else: + return shlex.split(s) + + +def _windows_shell_split(s): + """Splits up a windows command as the built-in command parser would. + + Windows has potentially bizarre rules depending on where you look. When + spawning a process via the Windows C runtime (which is what python does + when you call popen) the rules are as follows: + + https://docs.microsoft.com/en-us/cpp/cpp/parsing-cpp-command-line-arguments + + To summarize: + + * Only space and tab are valid delimiters + * Double quotes are the only valid quotes + * Backslash is interpreted literally unless it is part of a chain that + leads up to a double quote. Then the backslashes escape the backslashes, + and if there is an odd number the final backslash escapes the quote. + + :param s: The command string to split up into parts. + :return: A list of command components. + """ + if not s: + return [] + + components = [] + buff = [] + is_quoted = False + num_backslashes = 0 + for character in s: + if character == '\\': + # We can't simply append backslashes because we don't know if + # they are being used as escape characters or not. Instead we + # keep track of how many we've encountered and handle them when + # we encounter a different character. + num_backslashes += 1 + elif character == '"': + if num_backslashes > 0: + # The backslashes are in a chain leading up to a double + # quote, so they are escaping each other. + buff.append('\\' * int(floor(num_backslashes / 2))) + remainder = num_backslashes % 2 + num_backslashes = 0 + if remainder == 1: + # The number of backslashes is uneven, so they are also + # escaping the double quote, so it needs to be added to + # the current component buffer. + buff.append('"') + continue + + # We've encountered a double quote that is not escaped, + # so we toggle is_quoted. + is_quoted = not is_quoted + + # If there are quotes, then we may want an empty string. To be + # safe, we add an empty string to the buffer so that we make + # sure it sticks around if there's nothing else between quotes. + # If there is other stuff between quotes, the empty string will + # disappear during the joining process. + buff.append('') + elif character in [' ', '\t'] and not is_quoted: + # Since the backslashes aren't leading up to a quote, we put in + # the exact number of backslashes. + if num_backslashes > 0: + buff.append('\\' * num_backslashes) + num_backslashes = 0 + + # Excess whitespace is ignored, so only add the components list + # if there is anything in the buffer. + if buff: + components.append(''.join(buff)) + buff = [] + else: + # Since the backslashes aren't leading up to a quote, we put in + # the exact number of backslashes. + if num_backslashes > 0: + buff.append('\\' * num_backslashes) + num_backslashes = 0 + buff.append(character) + + # Quotes must be terminated. + if is_quoted: + raise ValueError(f"No closing quotation in string: {s}") + + # There may be some leftover backslashes, so we need to add them in. + # There's no quote so we add the exact number. + if num_backslashes > 0: + buff.append('\\' * num_backslashes) + + # Add the final component in if there is anything in the buffer. + if buff: + components.append(''.join(buff)) + + return components + + +def get_tzinfo_options(): + # Due to dateutil/dateutil#197, Windows may fail to parse times in the past + # with the system clock. We can alternatively fallback to tzwininfo when + # this happens, which will get time info from the Windows registry. + if sys.platform == 'win32': + from dateutil.tz import tzwinlocal + + return (tzlocal, tzwinlocal) + else: + return (tzlocal,) + + +# Detect if CRT is available for use +try: + import awscrt.auth + + # Allow user opt-out if needed + disabled = os.environ.get('BOTO_DISABLE_CRT', "false") + HAS_CRT = not disabled.lower() == 'true' +except ImportError: + HAS_CRT = False + + +def has_minimum_crt_version(minimum_version): + """Not intended for use outside botocore.""" + if not HAS_CRT: + return False + + crt_version_str = awscrt.__version__ + try: + crt_version_ints = map(int, crt_version_str.split(".")) + crt_version_tuple = tuple(crt_version_ints) + except (TypeError, ValueError): + return False + + return crt_version_tuple >= minimum_version + + +def get_current_datetime(remove_tzinfo=True): + """Retrieve the current timezone in UTC, with or without an explicit timezone.""" + datetime_now = datetime.datetime.now(datetime.timezone.utc) + if remove_tzinfo: + datetime_now = datetime_now.replace(tzinfo=None) + return datetime_now + + +######################################################## +# urllib3 compat backports # +######################################################## + +# Vendoring IPv6 validation regex patterns from urllib3 +# https://github.com/urllib3/urllib3/blob/7e856c0/src/urllib3/util/url.py +IPV4_PAT = r"(?:[0-9]{1,3}\.){3}[0-9]{1,3}" +IPV4_RE = re.compile("^" + IPV4_PAT + "$") +HEX_PAT = "[0-9A-Fa-f]{1,4}" +LS32_PAT = "(?:{hex}:{hex}|{ipv4})".format(hex=HEX_PAT, ipv4=IPV4_PAT) +_subs = {"hex": HEX_PAT, "ls32": LS32_PAT} +_variations = [ + # 6( h16 ":" ) ls32 + "(?:%(hex)s:){6}%(ls32)s", + # "::" 5( h16 ":" ) ls32 + "::(?:%(hex)s:){5}%(ls32)s", + # [ h16 ] "::" 4( h16 ":" ) ls32 + "(?:%(hex)s)?::(?:%(hex)s:){4}%(ls32)s", + # [ *1( h16 ":" ) h16 ] "::" 3( h16 ":" ) ls32 + "(?:(?:%(hex)s:)?%(hex)s)?::(?:%(hex)s:){3}%(ls32)s", + # [ *2( h16 ":" ) h16 ] "::" 2( h16 ":" ) ls32 + "(?:(?:%(hex)s:){0,2}%(hex)s)?::(?:%(hex)s:){2}%(ls32)s", + # [ *3( h16 ":" ) h16 ] "::" h16 ":" ls32 + "(?:(?:%(hex)s:){0,3}%(hex)s)?::%(hex)s:%(ls32)s", + # [ *4( h16 ":" ) h16 ] "::" ls32 + "(?:(?:%(hex)s:){0,4}%(hex)s)?::%(ls32)s", + # [ *5( h16 ":" ) h16 ] "::" h16 + "(?:(?:%(hex)s:){0,5}%(hex)s)?::%(hex)s", + # [ *6( h16 ":" ) h16 ] "::" + "(?:(?:%(hex)s:){0,6}%(hex)s)?::", +] + +UNRESERVED_PAT = ( + r"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789._!\-~" +) +IPV6_PAT = "(?:" + "|".join([x % _subs for x in _variations]) + ")" +ZONE_ID_PAT = "(?:%25|%)(?:[" + UNRESERVED_PAT + "]|%[a-fA-F0-9]{2})+" +IPV6_ADDRZ_PAT = r"\[" + IPV6_PAT + r"(?:" + ZONE_ID_PAT + r")?\]" +IPV6_ADDRZ_RE = re.compile("^" + IPV6_ADDRZ_PAT + "$") + +# These are the characters that are stripped by post-bpo-43882 urlparse(). +UNSAFE_URL_CHARS = frozenset('\t\r\n') + +# Detect if gzip is available for use +try: + import gzip + HAS_GZIP = True +except ImportError: + HAS_GZIP = False diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/compress.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/compress.py new file mode 100644 index 0000000000000000000000000000000000000000..d3dac6f0fc2f5494001b09299922a089849a1fdf --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/compress.py @@ -0,0 +1,128 @@ +# Copyright 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +""" +NOTE: All functions in this module are considered private and are +subject to abrupt breaking changes. Please do not use them directly. + +""" + +import io +import logging +from gzip import GzipFile +from gzip import compress as gzip_compress + +from botocore.compat import urlencode +from botocore.useragent import register_feature_id +from botocore.utils import determine_content_length + +logger = logging.getLogger(__name__) + + +def maybe_compress_request(config, request_dict, operation_model): + """Attempt to compress the request body using the modeled encodings.""" + if _should_compress_request(config, request_dict, operation_model): + for encoding in operation_model.request_compression['encodings']: + encoder = COMPRESSION_MAPPING.get(encoding) + if encoder is not None: + logger.debug('Compressing request with %s encoding.', encoding) + request_dict['body'] = encoder(request_dict['body']) + _set_compression_header(request_dict['headers'], encoding) + return + else: + logger.debug('Unsupported compression encoding: %s', encoding) + + +def _should_compress_request(config, request_dict, operation_model): + if ( + config.disable_request_compression is not True + and config.signature_version != 'v2' + and operation_model.request_compression is not None + ): + if not _is_compressible_type(request_dict): + body_type = type(request_dict['body']) + log_msg = 'Body type %s does not support compression.' + logger.debug(log_msg, body_type) + return False + + if operation_model.has_streaming_input: + streaming_input = operation_model.get_streaming_input() + streaming_metadata = streaming_input.metadata + return 'requiresLength' not in streaming_metadata + + body_size = _get_body_size(request_dict['body']) + min_size = config.request_min_compression_size_bytes + return min_size <= body_size + + return False + + +def _is_compressible_type(request_dict): + body = request_dict['body'] + # Coerce dict to a format compatible with compression. + if isinstance(body, dict): + body = urlencode(body, doseq=True, encoding='utf-8').encode('utf-8') + request_dict['body'] = body + is_supported_type = isinstance(body, (str, bytes, bytearray)) + return is_supported_type or hasattr(body, 'read') + + +def _get_body_size(body): + size = determine_content_length(body) + if size is None: + logger.debug( + 'Unable to get length of the request body: %s. ' + 'Skipping compression.', + body, + ) + size = 0 + return size + + +def _gzip_compress_body(body): + register_feature_id('GZIP_REQUEST_COMPRESSION') + if isinstance(body, str): + return gzip_compress(body.encode('utf-8')) + elif isinstance(body, (bytes, bytearray)): + return gzip_compress(body) + elif hasattr(body, 'read'): + if hasattr(body, 'seek') and hasattr(body, 'tell'): + current_position = body.tell() + compressed_obj = _gzip_compress_fileobj(body) + body.seek(current_position) + return compressed_obj + return _gzip_compress_fileobj(body) + + +def _gzip_compress_fileobj(body): + compressed_obj = io.BytesIO() + with GzipFile(fileobj=compressed_obj, mode='wb') as gz: + while True: + chunk = body.read(8192) + if not chunk: + break + if isinstance(chunk, str): + chunk = chunk.encode('utf-8') + gz.write(chunk) + compressed_obj.seek(0) + return compressed_obj + + +def _set_compression_header(headers, encoding): + ce_header = headers.get('Content-Encoding') + if ce_header is None: + headers['Content-Encoding'] = encoding + else: + headers['Content-Encoding'] = f'{ce_header},{encoding}' + + +COMPRESSION_MAPPING = {'gzip': _gzip_compress_body} diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/config.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/config.py new file mode 100644 index 0000000000000000000000000000000000000000..93e50fa450a47d961609fcd529127b3cf2f229c7 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/config.py @@ -0,0 +1,475 @@ +# Copyright 2016 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import copy + +from botocore.compat import OrderedDict +from botocore.endpoint import DEFAULT_TIMEOUT, MAX_POOL_CONNECTIONS +from botocore.exceptions import ( + InvalidMaxRetryAttemptsError, + InvalidRetryConfigurationError, + InvalidRetryModeError, + InvalidS3AddressingStyleError, +) + + +class Config: + """Advanced configuration for Botocore clients. + + :type region_name: str + :param region_name: The region to use in instantiating the client + + :type signature_version: str + :param signature_version: The signature version when signing requests. + + :type user_agent: str + :param user_agent: The value to use in the User-Agent header. + + :type user_agent_extra: str + :param user_agent_extra: The value to append to the current User-Agent + header value. + + :type user_agent_appid: str + :param user_agent_appid: A value that gets included in the User-Agent + string in the format "app/". Allowed characters are + ASCII alphanumerics and ``!$%&'*+-.^_`|~``. All other characters will + be replaced by a ``-``. + + :type connect_timeout: float or int + :param connect_timeout: The time in seconds till a timeout exception is + thrown when attempting to make a connection. The default is 60 + seconds. + + :type read_timeout: float or int + :param read_timeout: The time in seconds till a timeout exception is + thrown when attempting to read from a connection. The default is + 60 seconds. + + :type parameter_validation: bool + :param parameter_validation: Whether parameter validation should occur + when serializing requests. The default is True. You can disable + parameter validation for performance reasons. Otherwise, it's + recommended to leave parameter validation enabled. + + :type max_pool_connections: int + :param max_pool_connections: The maximum number of connections to + keep in a connection pool. If this value is not set, the default + value of 10 is used. + + :type proxies: dict + :param proxies: A dictionary of proxy servers to use by protocol or + endpoint, e.g.: + ``{'http': 'foo.bar:3128', 'http://hostname': 'foo.bar:4012'}``. + The proxies are used on each request. + + :type proxies_config: dict + :param proxies_config: A dictionary of additional proxy configurations. + Valid keys are: + + * ``proxy_ca_bundle`` -- The path to a custom certificate bundle to use + when establishing SSL/TLS connections with proxy. + + * ``proxy_client_cert`` -- The path to a certificate for proxy + TLS client authentication. + + When a string is provided it is treated as a path to a proxy client + certificate. When a two element tuple is provided, it will be + interpreted as the path to the client certificate, and the path + to the certificate key. + + * ``proxy_use_forwarding_for_https`` -- For HTTPS proxies, + forward your requests to HTTPS destinations with an absolute + URI. We strongly recommend you only use this option with + trusted or corporate proxies. Value must be boolean. + + :type s3: dict + :param s3: A dictionary of S3 specific configurations. + Valid keys are: + + * ``use_accelerate_endpoint`` -- Refers to whether to use the S3 + Accelerate endpoint. The value must be a boolean. If True, the + client will use the S3 Accelerate endpoint. If the S3 Accelerate + endpoint is being used then the addressing style will always + be virtual. + + * ``payload_signing_enabled`` -- Refers to whether or not to SHA256 + sign sigv4 payloads. By default, this is disabled for streaming + uploads (UploadPart and PutObject). + + * ``addressing_style`` -- Refers to the style in which to address + s3 endpoints. Values must be a string that equals one of: + + * ``auto`` -- Addressing style is chosen for user. Depending + on the configuration of client, the endpoint may be addressed in + the virtual or the path style. Note that this is the default + behavior if no style is specified. + + * ``virtual`` -- Addressing style is always virtual. The name of the + bucket must be DNS compatible or an exception will be thrown. + Endpoints will be addressed as such: ``amzn-s3-demo-bucket.s3.amazonaws.com`` + + * ``path`` -- Addressing style is always by path. Endpoints will be + addressed as such: ``s3.amazonaws.com/amzn-s3-demo-bucket`` + + * ``us_east_1_regional_endpoint`` -- Refers to what S3 endpoint to use + when the region is configured to be us-east-1. Values must be a + string that equals: + + * ``regional`` -- Use the us-east-1.amazonaws.com endpoint if the + client is configured to use the us-east-1 region. + + * ``legacy`` -- Use the s3.amazonaws.com endpoint if the client is + configured to use the us-east-1 region. This is the default if + the configuration option is not specified. + + + :type retries: dict + :param retries: A dictionary for configuration related to retry behavior. + Valid keys are: + + * ``total_max_attempts`` -- An integer representing the maximum number of + total attempts that will be made on a single request. This includes + the initial request, so a value of 1 indicates that no requests + will be retried. If ``total_max_attempts`` and ``max_attempts`` + are both provided, ``total_max_attempts`` takes precedence. + ``total_max_attempts`` is preferred over ``max_attempts`` because + it maps to the ``AWS_MAX_ATTEMPTS`` environment variable and + the ``max_attempts`` config file value. + * ``max_attempts`` -- An integer representing the maximum number of + retry attempts that will be made on a single request. For + example, setting this value to 2 will result in the request + being retried at most two times after the initial request. Setting + this value to 0 will result in no retries ever being attempted after + the initial request. If not provided, the number of retries will + default to the value specified in the service model, which is + typically four retries. + * ``mode`` -- A string representing the type of retry mode botocore + should use. Valid values are: + + * ``legacy`` - The pre-existing retry behavior. + + * ``standard`` - The standardized set of retry rules. This will also + default to 3 max attempts unless overridden. + + * ``adaptive`` - Retries with additional client side throttling. + + :type client_cert: str, (str, str) + :param client_cert: The path to a certificate for TLS client authentication. + + When a string is provided it is treated as a path to a client + certificate to be used when creating a TLS connection. + + If a client key is to be provided alongside the client certificate the + client_cert should be set to a tuple of length two where the first + element is the path to the client certificate and the second element is + the path to the certificate key. + + :type inject_host_prefix: bool + :param inject_host_prefix: Whether host prefix injection should occur. + + Defaults to None. + + The default of None is equivalent to setting to True, which enables + the injection of operation parameters into the prefix of the hostname. + Setting this to False disables the injection of operation parameters + into the prefix of the hostname. Setting this to False is useful for + clients providing custom endpoints that should not have their host + prefix modified. + + :type use_dualstack_endpoint: bool + :param use_dualstack_endpoint: Setting to True enables dualstack + endpoint resolution. + + Defaults to None. + + :type use_fips_endpoint: bool + :param use_fips_endpoint: Setting to True enables fips + endpoint resolution. + + Defaults to None. + + :type ignore_configured_endpoint_urls: bool + :param ignore_configured_endpoint_urls: Setting to True disables use + of endpoint URLs provided via environment variables and + the shared configuration file. + + Defaults to None. + + :type tcp_keepalive: bool + :param tcp_keepalive: Enables the TCP Keep-Alive socket option used when + creating new connections if set to True. + + Defaults to False. + + :type request_min_compression_size_bytes: int + :param request_min_compression_size_bytes: The minimum size in bytes that a + request body should be to trigger compression. All requests with + streaming input that don't contain the ``requiresLength`` trait will be + compressed regardless of this setting. + + Defaults to None. + + :type disable_request_compression: bool + :param disable_request_compression: Disables request body compression if + set to True. + + Defaults to None. + + :type sigv4a_signing_region_set: string + :param sigv4a_signing_region_set: A set of AWS regions to apply the signature for + when using SigV4a for signing. Set to ``*`` to represent all regions. + + Defaults to None. + + :type client_context_params: dict + :param client_context_params: A dictionary of parameters specific to + individual services. If available, valid parameters can be found in + the ``Client Context Parameters`` section of the service client's + documentation. Invalid parameters or ones that are not used by the + specified service will be ignored. + + Defaults to None. + + :type request_checksum_calculation: str + :param request_checksum_calculation: Determines when a checksum will be + calculated for request payloads. Valid values are: + + * ``when_supported`` -- When set, a checksum will be calculated for + all request payloads of operations modeled with the ``httpChecksum`` + trait where ``requestChecksumRequired`` is ``true`` or a + ``requestAlgorithmMember`` is modeled. + + * ``when_required`` -- When set, a checksum will only be calculated + for request payloads of operations modeled with the ``httpChecksum`` + trait where ``requestChecksumRequired`` is ``true`` or where a + ``requestAlgorithmMember`` is modeled and supplied. + + Defaults to None. + + :type response_checksum_validation: str + :param response_checksum_validation: Determines when checksum validation + will be performed on response payloads. Valid values are: + + * ``when_supported`` -- When set, checksum validation is performed on + all response payloads of operations modeled with the ``httpChecksum`` + trait where ``responseAlgorithms`` is modeled, except when no modeled + checksum algorithms are supported. + + * ``when_required`` -- When set, checksum validation is not performed + on response payloads of operations unless the checksum algorithm is + supported and the ``requestValidationModeMember`` member is set to ``ENABLED``. + + Defaults to None. + + :type account_id_endpoint_mode: str + :param account_id_endpoint_mode: The value used to determine the client's + behavior for account ID based endpoint routing. Valid values are: + + * ``preferred`` - The endpoint should include account ID if available. + * ``disabled`` - A resolved endpoint does not include account ID. + * ``required`` - The endpoint must include account ID. If the account ID + isn't available, an exception will be raised. + + If a value is not provided, the client will default to ``preferred``. + + Defaults to None. + + :type auth_scheme_preference: str + :param auth_scheme_preference: A comma-delimited string of case-sensitive + auth scheme names used to determine the client's auth scheme preference. + + Defaults to None. + """ + + OPTION_DEFAULTS = OrderedDict( + [ + ('region_name', None), + ('signature_version', None), + ('user_agent', None), + ('user_agent_extra', None), + ('user_agent_appid', None), + ('connect_timeout', DEFAULT_TIMEOUT), + ('read_timeout', DEFAULT_TIMEOUT), + ('parameter_validation', True), + ('max_pool_connections', MAX_POOL_CONNECTIONS), + ('proxies', None), + ('proxies_config', None), + ('s3', None), + ('retries', None), + ('client_cert', None), + ('inject_host_prefix', None), + ('endpoint_discovery_enabled', None), + ('use_dualstack_endpoint', None), + ('use_fips_endpoint', None), + ('ignore_configured_endpoint_urls', None), + ('defaults_mode', None), + ('tcp_keepalive', None), + ('request_min_compression_size_bytes', None), + ('disable_request_compression', None), + ('client_context_params', None), + ('sigv4a_signing_region_set', None), + ('request_checksum_calculation', None), + ('response_checksum_validation', None), + ('account_id_endpoint_mode', None), + ('auth_scheme_preference', None), + ] + ) + + NON_LEGACY_OPTION_DEFAULTS = { + 'connect_timeout': None, + } + + # The original default value of the inject_host_prefix parameter was True. + # This prevented the ability to override the value from other locations in + # the parameter provider chain, like env vars or the shared configuration + # file. TO accomplish this, we need to disambiguate when the value was set + # by the user or not. This overrides the parameter with a property so the + # default value of inject_host_prefix is still True if it is not set by the + # user. + @property + def inject_host_prefix(self): + if self._inject_host_prefix == "UNSET": + return True + + return self._inject_host_prefix + + # Override the setter for the case where the user does supply a value; + # _inject_host_prefix will no longer be "UNSET". + @inject_host_prefix.setter + def inject_host_prefix(self, value): + self._inject_host_prefix = value + + def __init__(self, *args, **kwargs): + self._user_provided_options = self._record_user_provided_options( + args, kwargs + ) + + # By default, we use a value that indicates the user did not + # set it. This value MUST persist on the Config object to be used + # elsewhere. + self._inject_host_prefix = 'UNSET' + + # Merge the user_provided options onto the default options + config_vars = copy.copy(self.OPTION_DEFAULTS) + defaults_mode = self._user_provided_options.get( + 'defaults_mode', 'legacy' + ) + if defaults_mode != 'legacy': + config_vars.update(self.NON_LEGACY_OPTION_DEFAULTS) + + config_vars.update(self._user_provided_options) + + # Set the attributes based on the config_vars + for key, value in config_vars.items(): + # Default values for the Config object are set here. We don't want + # to use `setattr` in the case where the user already supplied a + # value. + if ( + key == 'inject_host_prefix' + and 'inject_host_prefix' + not in self._user_provided_options.keys() + ): + continue + setattr(self, key, value) + + # Validate the s3 options + self._validate_s3_configuration(self.s3) + + self._validate_retry_configuration(self.retries) + + def _record_user_provided_options(self, args, kwargs): + option_order = list(self.OPTION_DEFAULTS) + user_provided_options = {} + + # Iterate through the kwargs passed through to the constructor and + # map valid keys to the dictionary + for key, value in kwargs.items(): + if key in self.OPTION_DEFAULTS: + user_provided_options[key] = value + # The key must exist in the available options + else: + raise TypeError(f"Got unexpected keyword argument '{key}'") + + # The number of args should not be longer than the allowed + # options + if len(args) > len(option_order): + raise TypeError( + f"Takes at most {len(option_order)} arguments ({len(args)} given)" + ) + + # Iterate through the args passed through to the constructor and map + # them to appropriate keys. + for i, arg in enumerate(args): + # If a kwarg was specified for the arg, then error out + if option_order[i] in user_provided_options: + raise TypeError( + f"Got multiple values for keyword argument '{option_order[i]}'" + ) + user_provided_options[option_order[i]] = arg + + return user_provided_options + + def _validate_s3_configuration(self, s3): + if s3 is not None: + addressing_style = s3.get('addressing_style') + if addressing_style not in ['virtual', 'auto', 'path', None]: + raise InvalidS3AddressingStyleError( + s3_addressing_style=addressing_style + ) + + def _validate_retry_configuration(self, retries): + valid_options = ('max_attempts', 'mode', 'total_max_attempts') + valid_modes = ('legacy', 'standard', 'adaptive') + if retries is not None: + for key, value in retries.items(): + if key not in valid_options: + raise InvalidRetryConfigurationError( + retry_config_option=key, + valid_options=valid_options, + ) + if key == 'max_attempts' and value < 0: + raise InvalidMaxRetryAttemptsError( + provided_max_attempts=value, + min_value=0, + ) + if key == 'total_max_attempts' and value < 1: + raise InvalidMaxRetryAttemptsError( + provided_max_attempts=value, + min_value=1, + ) + if key == 'mode' and value not in valid_modes: + raise InvalidRetryModeError( + provided_retry_mode=value, + valid_modes=valid_modes, + ) + + def merge(self, other_config): + """Merges the config object with another config object + + This will merge in all non-default values from the provided config + and return a new config object + + :type other_config: botocore.config.Config + :param other config: Another config object to merge with. The values + in the provided config object will take precedence in the merging + + :returns: A config object built from the merged values of both + config objects. + """ + # Make a copy of the current attributes in the config object. + config_options = copy.copy(self._user_provided_options) + + # Merge in the user provided options from the other config + config_options.update(other_config._user_provided_options) + + # Return a new config object with the merged properties. + return Config(**config_options) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/configprovider.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/configprovider.py new file mode 100644 index 0000000000000000000000000000000000000000..b4a9c5b757e475d71a27466cc3a1ed895709ab09 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/configprovider.py @@ -0,0 +1,1051 @@ +# Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +"""This module contains the interface for controlling how configuration +is loaded. +""" + +import copy +import logging +import os + +from botocore import utils +from botocore.exceptions import InvalidConfigError + +logger = logging.getLogger(__name__) + + +#: A default dictionary that maps the logical names for session variables +#: to the specific environment variables and configuration file names +#: that contain the values for these variables. +#: When creating a new Session object, you can pass in your own dictionary +#: to remap the logical names or to add new logical names. You can then +#: get the current value for these variables by using the +#: ``get_config_variable`` method of the :class:`botocore.session.Session` +#: class. +#: These form the keys of the dictionary. The values in the dictionary +#: are tuples of (, , , +#: ). +#: The conversion func is a function that takes the configuration value +#: as an argument and returns the converted value. If this value is +#: None, then the configuration value is returned unmodified. This +#: conversion function can be used to type convert config values to +#: values other than the default values of strings. +#: The ``profile`` and ``config_file`` variables should always have a +#: None value for the first entry in the tuple because it doesn't make +#: sense to look inside the config file for the location of the config +#: file or for the default profile to use. +#: The ``config_name`` is the name to look for in the configuration file, +#: the ``env var`` is the OS environment variable (``os.environ``) to +#: use, and ``default_value`` is the value to use if no value is otherwise +#: found. +#: NOTE: Fixing the spelling of this variable would be a breaking change. +#: Please leave as is. +BOTOCORE_DEFAUT_SESSION_VARIABLES = { + # logical: config_file, env_var, default_value, conversion_func + 'profile': (None, ['AWS_DEFAULT_PROFILE', 'AWS_PROFILE'], None, None), + 'region': ('region', 'AWS_DEFAULT_REGION', None, None), + 'data_path': ('data_path', 'AWS_DATA_PATH', None, None), + 'config_file': (None, 'AWS_CONFIG_FILE', '~/.aws/config', None), + 'ca_bundle': ('ca_bundle', 'AWS_CA_BUNDLE', None, None), + 'api_versions': ('api_versions', None, {}, None), + # This is the shared credentials file amongst sdks. + 'credentials_file': ( + None, + 'AWS_SHARED_CREDENTIALS_FILE', + '~/.aws/credentials', + None, + ), + # These variables only exist in the config file. + # This is the number of seconds until we time out a request to + # the instance metadata service. + 'metadata_service_timeout': ( + 'metadata_service_timeout', + 'AWS_METADATA_SERVICE_TIMEOUT', + 1, + int, + ), + # This is the number of request attempts we make until we give + # up trying to retrieve data from the instance metadata service. + 'metadata_service_num_attempts': ( + 'metadata_service_num_attempts', + 'AWS_METADATA_SERVICE_NUM_ATTEMPTS', + 1, + int, + ), + 'ec2_metadata_service_endpoint': ( + 'ec2_metadata_service_endpoint', + 'AWS_EC2_METADATA_SERVICE_ENDPOINT', + None, + None, + ), + 'ec2_metadata_service_endpoint_mode': ( + 'ec2_metadata_service_endpoint_mode', + 'AWS_EC2_METADATA_SERVICE_ENDPOINT_MODE', + None, + None, + ), + 'ec2_metadata_v1_disabled': ( + 'ec2_metadata_v1_disabled', + 'AWS_EC2_METADATA_V1_DISABLED', + False, + utils.ensure_boolean, + ), + 'imds_use_ipv6': ( + 'imds_use_ipv6', + 'AWS_IMDS_USE_IPV6', + False, + utils.ensure_boolean, + ), + 'use_dualstack_endpoint': ( + 'use_dualstack_endpoint', + 'AWS_USE_DUALSTACK_ENDPOINT', + None, + utils.ensure_boolean, + ), + 'use_fips_endpoint': ( + 'use_fips_endpoint', + 'AWS_USE_FIPS_ENDPOINT', + None, + utils.ensure_boolean, + ), + 'ignore_configured_endpoint_urls': ( + 'ignore_configured_endpoint_urls', + 'AWS_IGNORE_CONFIGURED_ENDPOINT_URLS', + None, + utils.ensure_boolean, + ), + 'parameter_validation': ('parameter_validation', None, True, None), + # Client side monitoring configurations. + # Note: These configurations are considered internal to botocore. + # Do not use them until publicly documented. + 'csm_enabled': ( + 'csm_enabled', + 'AWS_CSM_ENABLED', + False, + utils.ensure_boolean, + ), + 'csm_host': ('csm_host', 'AWS_CSM_HOST', '127.0.0.1', None), + 'csm_port': ('csm_port', 'AWS_CSM_PORT', 31000, int), + 'csm_client_id': ('csm_client_id', 'AWS_CSM_CLIENT_ID', '', None), + # Endpoint discovery configuration + 'endpoint_discovery_enabled': ( + 'endpoint_discovery_enabled', + 'AWS_ENDPOINT_DISCOVERY_ENABLED', + 'auto', + None, + ), + 'sts_regional_endpoints': ( + 'sts_regional_endpoints', + 'AWS_STS_REGIONAL_ENDPOINTS', + 'regional', + None, + ), + 'retry_mode': ('retry_mode', 'AWS_RETRY_MODE', 'legacy', None), + 'defaults_mode': ('defaults_mode', 'AWS_DEFAULTS_MODE', 'legacy', None), + # We can't have a default here for v1 because we need to defer to + # whatever the defaults are in _retry.json. + 'max_attempts': ('max_attempts', 'AWS_MAX_ATTEMPTS', None, int), + 'user_agent_appid': ('sdk_ua_app_id', 'AWS_SDK_UA_APP_ID', None, None), + 'request_min_compression_size_bytes': ( + 'request_min_compression_size_bytes', + 'AWS_REQUEST_MIN_COMPRESSION_SIZE_BYTES', + 10240, + None, + ), + 'disable_request_compression': ( + 'disable_request_compression', + 'AWS_DISABLE_REQUEST_COMPRESSION', + False, + utils.ensure_boolean, + ), + 'sigv4a_signing_region_set': ( + 'sigv4a_signing_region_set', + 'AWS_SIGV4A_SIGNING_REGION_SET', + None, + None, + ), + 'request_checksum_calculation': ( + 'request_checksum_calculation', + 'AWS_REQUEST_CHECKSUM_CALCULATION', + "when_supported", + None, + ), + 'response_checksum_validation': ( + 'response_checksum_validation', + 'AWS_RESPONSE_CHECKSUM_VALIDATION', + "when_supported", + None, + ), + 'account_id_endpoint_mode': ( + 'account_id_endpoint_mode', + 'AWS_ACCOUNT_ID_ENDPOINT_MODE', + 'preferred', + None, + ), + 'disable_host_prefix_injection': ( + 'disable_host_prefix_injection', + 'AWS_DISABLE_HOST_PREFIX_INJECTION', + None, + utils.ensure_boolean, + ), + 'auth_scheme_preference': ( + 'auth_scheme_preference', + 'AWS_AUTH_SCHEME_PREFERENCE', + None, + None, + ), +} +# A mapping for the s3 specific configuration vars. These are the configuration +# vars that typically go in the s3 section of the config file. This mapping +# follows the same schema as the previous session variable mapping. +DEFAULT_S3_CONFIG_VARS = { + 'addressing_style': (('s3', 'addressing_style'), None, None, None), + 'use_accelerate_endpoint': ( + ('s3', 'use_accelerate_endpoint'), + None, + None, + utils.ensure_boolean, + ), + 'use_dualstack_endpoint': ( + ('s3', 'use_dualstack_endpoint'), + None, + None, + utils.ensure_boolean, + ), + 'payload_signing_enabled': ( + ('s3', 'payload_signing_enabled'), + None, + None, + utils.ensure_boolean, + ), + 'use_arn_region': ( + ['s3_use_arn_region', ('s3', 'use_arn_region')], + 'AWS_S3_USE_ARN_REGION', + None, + utils.ensure_boolean, + ), + 'us_east_1_regional_endpoint': ( + [ + 's3_us_east_1_regional_endpoint', + ('s3', 'us_east_1_regional_endpoint'), + ], + 'AWS_S3_US_EAST_1_REGIONAL_ENDPOINT', + None, + None, + ), + 's3_disable_multiregion_access_points': ( + ('s3', 's3_disable_multiregion_access_points'), + 'AWS_S3_DISABLE_MULTIREGION_ACCESS_POINTS', + None, + utils.ensure_boolean, + ), +} +# A mapping for the proxy specific configuration vars. These are +# used to configure how botocore interacts with proxy setups while +# sending requests. +DEFAULT_PROXIES_CONFIG_VARS = { + 'proxy_ca_bundle': ('proxy_ca_bundle', None, None, None), + 'proxy_client_cert': ('proxy_client_cert', None, None, None), + 'proxy_use_forwarding_for_https': ( + 'proxy_use_forwarding_for_https', + None, + None, + utils.normalize_boolean, + ), +} + + +def create_botocore_default_config_mapping(session): + chain_builder = ConfigChainFactory(session=session) + config_mapping = _create_config_chain_mapping( + chain_builder, BOTOCORE_DEFAUT_SESSION_VARIABLES + ) + config_mapping['s3'] = SectionConfigProvider( + 's3', + session, + _create_config_chain_mapping(chain_builder, DEFAULT_S3_CONFIG_VARS), + ) + config_mapping['proxies_config'] = SectionConfigProvider( + 'proxies_config', + session, + _create_config_chain_mapping( + chain_builder, DEFAULT_PROXIES_CONFIG_VARS + ), + ) + return config_mapping + + +def _create_config_chain_mapping(chain_builder, config_variables): + mapping = {} + for logical_name, config in config_variables.items(): + mapping[logical_name] = chain_builder.create_config_chain( + instance_name=logical_name, + env_var_names=config[1], + config_property_names=config[0], + default=config[2], + conversion_func=config[3], + ) + return mapping + + +class DefaultConfigResolver: + def __init__(self, default_config_data): + self._base_default_config = default_config_data['base'] + self._modes = default_config_data['modes'] + self._resolved_default_configurations = {} + + def _resolve_default_values_by_mode(self, mode): + default_config = self._base_default_config.copy() + modifications = self._modes.get(mode) + + for config_var in modifications: + default_value = default_config[config_var] + modification_dict = modifications[config_var] + modification = list(modification_dict.keys())[0] + modification_value = modification_dict[modification] + if modification == 'multiply': + default_value *= modification_value + elif modification == 'add': + default_value += modification_value + elif modification == 'override': + default_value = modification_value + default_config[config_var] = default_value + return default_config + + def get_default_modes(self): + default_modes = ['legacy', 'auto'] + default_modes.extend(self._modes.keys()) + return default_modes + + def get_default_config_values(self, mode): + if mode not in self._resolved_default_configurations: + defaults = self._resolve_default_values_by_mode(mode) + self._resolved_default_configurations[mode] = defaults + return self._resolved_default_configurations[mode] + + +class ConfigChainFactory: + """Factory class to create our most common configuration chain case. + + This is a convenience class to construct configuration chains that follow + our most common pattern. This is to prevent ordering them incorrectly, + and to make the config chain construction more readable. + """ + + def __init__(self, session, environ=None): + """Initialize a ConfigChainFactory. + + :type session: :class:`botocore.session.Session` + :param session: This is the session that should be used to look up + values from the config file. + + :type environ: dict + :param environ: A mapping to use for environment variables. If this + is not provided it will default to use os.environ. + """ + self._session = session + if environ is None: + environ = os.environ + self._environ = environ + + def create_config_chain( + self, + instance_name=None, + env_var_names=None, + config_property_names=None, + default=None, + conversion_func=None, + ): + """Build a config chain following the standard botocore pattern. + + In botocore most of our config chains follow the the precendence: + session_instance_variables, environment, config_file, default_value. + + This is a convenience function for creating a chain that follow + that precendence. + + :type instance_name: str + :param instance_name: This indicates what session instance variable + corresponds to this config value. If it is None it will not be + added to the chain. + + :type env_var_names: str or list of str or None + :param env_var_names: One or more environment variable names to + search for this value. They are searched in order. If it is None + it will not be added to the chain. + + :type config_property_names: str/tuple or list of str/tuple or None + :param config_property_names: One of more strings or tuples + representing the name of the key in the config file for this + config option. They are searched in order. If it is None it will + not be added to the chain. + + :type default: Any + :param default: Any constant value to be returned. + + :type conversion_func: None or callable + :param conversion_func: If this value is None then it has no effect on + the return type. Otherwise, it is treated as a function that will + conversion_func our provided type. + + :rvalue: ConfigChain + :returns: A ConfigChain that resolves in the order env_var_names -> + config_property_name -> default. Any values that were none are + omitted form the chain. + """ + providers = [] + if instance_name is not None: + providers.append( + InstanceVarProvider( + instance_var=instance_name, session=self._session + ) + ) + if env_var_names is not None: + providers.extend(self._get_env_providers(env_var_names)) + if config_property_names is not None: + providers.extend( + self._get_scoped_config_providers(config_property_names) + ) + if default is not None: + providers.append(ConstantProvider(value=default)) + + return ChainProvider( + providers=providers, + conversion_func=conversion_func, + ) + + def _get_env_providers(self, env_var_names): + env_var_providers = [] + if not isinstance(env_var_names, list): + env_var_names = [env_var_names] + for env_var_name in env_var_names: + env_var_providers.append( + EnvironmentProvider(name=env_var_name, env=self._environ) + ) + return env_var_providers + + def _get_scoped_config_providers(self, config_property_names): + scoped_config_providers = [] + if not isinstance(config_property_names, list): + config_property_names = [config_property_names] + for config_property_name in config_property_names: + scoped_config_providers.append( + ScopedConfigProvider( + config_var_name=config_property_name, + session=self._session, + ) + ) + return scoped_config_providers + + +class ConfigValueStore: + """The ConfigValueStore object stores configuration values.""" + + def __init__(self, mapping=None): + """Initialize a ConfigValueStore. + + :type mapping: dict + :param mapping: The mapping parameter is a map of string to a subclass + of BaseProvider. When a config variable is asked for via the + get_config_variable method, the corresponding provider will be + invoked to load the value. + """ + self._overrides = {} + self._mapping = {} + if mapping is not None: + for logical_name, provider in mapping.items(): + self.set_config_provider(logical_name, provider) + + def __deepcopy__(self, memo): + config_store = ConfigValueStore(copy.deepcopy(self._mapping, memo)) + for logical_name, override_value in self._overrides.items(): + config_store.set_config_variable(logical_name, override_value) + + return config_store + + def __copy__(self): + config_store = ConfigValueStore(copy.copy(self._mapping)) + for logical_name, override_value in self._overrides.items(): + config_store.set_config_variable(logical_name, override_value) + + return config_store + + def get_config_variable(self, logical_name): + """ + Retrieve the value associated with the specified logical_name + from the corresponding provider. If no value is found None will + be returned. + + :type logical_name: str + :param logical_name: The logical name of the session variable + you want to retrieve. This name will be mapped to the + appropriate environment variable name for this session as + well as the appropriate config file entry. + + :returns: value of variable or None if not defined. + """ + if logical_name in self._overrides: + return self._overrides[logical_name] + if logical_name not in self._mapping: + return None + provider = self._mapping[logical_name] + return provider.provide() + + def get_config_provider(self, logical_name): + """ + Retrieve the provider associated with the specified logical_name. + If no provider is found None will be returned. + + :type logical_name: str + :param logical_name: The logical name of the session variable + you want to retrieve. This name will be mapped to the + appropriate environment variable name for this session as + well as the appropriate config file entry. + + :returns: configuration provider or None if not defined. + """ + if ( + logical_name in self._overrides + or logical_name not in self._mapping + ): + return None + provider = self._mapping[logical_name] + return provider + + def set_config_variable(self, logical_name, value): + """Set a configuration variable to a specific value. + + By using this method, you can override the normal lookup + process used in ``get_config_variable`` by explicitly setting + a value. Subsequent calls to ``get_config_variable`` will + use the ``value``. This gives you per-session specific + configuration values. + + :: + >>> # Assume logical name 'foo' maps to env var 'FOO' + >>> os.environ['FOO'] = 'myvalue' + >>> s.get_config_variable('foo') + 'myvalue' + >>> s.set_config_variable('foo', 'othervalue') + >>> s.get_config_variable('foo') + 'othervalue' + + :type logical_name: str + :param logical_name: The logical name of the session variable + you want to set. These are the keys in ``SESSION_VARIABLES``. + + :param value: The value to associate with the config variable. + """ + self._overrides[logical_name] = value + + def clear_config_variable(self, logical_name): + """Remove an override config variable from the session. + + :type logical_name: str + :param logical_name: The name of the parameter to clear the override + value from. + """ + self._overrides.pop(logical_name, None) + + def set_config_provider(self, logical_name, provider): + """Set the provider for a config value. + + This provides control over how a particular configuration value is + loaded. This replaces the provider for ``logical_name`` with the new + ``provider``. + + :type logical_name: str + :param logical_name: The name of the config value to change the config + provider for. + + :type provider: :class:`botocore.configprovider.BaseProvider` + :param provider: The new provider that should be responsible for + providing a value for the config named ``logical_name``. + """ + self._mapping[logical_name] = provider + + +class SmartDefaultsConfigStoreFactory: + def __init__(self, default_config_resolver, imds_region_provider): + self._default_config_resolver = default_config_resolver + self._imds_region_provider = imds_region_provider + # Initializing _instance_metadata_region as None so we + # can fetch region in a lazy fashion only when needed. + self._instance_metadata_region = None + + def merge_smart_defaults(self, config_store, mode, region_name): + if mode == 'auto': + mode = self.resolve_auto_mode(region_name) + default_configs = ( + self._default_config_resolver.get_default_config_values(mode) + ) + for config_var in default_configs: + config_value = default_configs[config_var] + method = getattr(self, f'_set_{config_var}', None) + if method: + method(config_store, config_value) + + def resolve_auto_mode(self, region_name): + current_region = None + if os.environ.get('AWS_EXECUTION_ENV'): + default_region = os.environ.get('AWS_DEFAULT_REGION') + current_region = os.environ.get('AWS_REGION', default_region) + if not current_region: + if self._instance_metadata_region: + current_region = self._instance_metadata_region + else: + try: + current_region = self._imds_region_provider.provide() + self._instance_metadata_region = current_region + except Exception: + pass + + if current_region: + if region_name == current_region: + return 'in-region' + else: + return 'cross-region' + return 'standard' + + def _update_provider(self, config_store, variable, value): + original_provider = config_store.get_config_provider(variable) + default_provider = ConstantProvider(value) + if isinstance(original_provider, ChainProvider): + chain_provider_copy = copy.deepcopy(original_provider) + chain_provider_copy.set_default_provider(default_provider) + default_provider = chain_provider_copy + elif isinstance(original_provider, BaseProvider): + default_provider = ChainProvider( + providers=[original_provider, default_provider] + ) + config_store.set_config_provider(variable, default_provider) + + def _update_section_provider( + self, config_store, section_name, variable, value + ): + section_provider_copy = copy.deepcopy( + config_store.get_config_provider(section_name) + ) + section_provider_copy.set_default_provider( + variable, ConstantProvider(value) + ) + config_store.set_config_provider(section_name, section_provider_copy) + + def _set_retryMode(self, config_store, value): + self._update_provider(config_store, 'retry_mode', value) + + def _set_stsRegionalEndpoints(self, config_store, value): + self._update_provider(config_store, 'sts_regional_endpoints', value) + + def _set_s3UsEast1RegionalEndpoints(self, config_store, value): + self._update_section_provider( + config_store, 's3', 'us_east_1_regional_endpoint', value + ) + + def _set_connectTimeoutInMillis(self, config_store, value): + self._update_provider(config_store, 'connect_timeout', value / 1000) + + +class BaseProvider: + """Base class for configuration value providers. + + A configuration provider has some method of providing a configuration + value. + """ + + def provide(self): + """Provide a config value.""" + raise NotImplementedError('provide') + + +class ChainProvider(BaseProvider): + """This provider wraps one or more other providers. + + Each provider in the chain is called, the first one returning a non-None + value is then returned. + """ + + def __init__(self, providers=None, conversion_func=None): + """Initalize a ChainProvider. + + :type providers: list + :param providers: The initial list of providers to check for values + when invoked. + + :type conversion_func: None or callable + :param conversion_func: If this value is None then it has no affect on + the return type. Otherwise, it is treated as a function that will + transform provided value. + """ + if providers is None: + providers = [] + self._providers = providers + self._conversion_func = conversion_func + + def __deepcopy__(self, memo): + return ChainProvider( + copy.deepcopy(self._providers, memo), self._conversion_func + ) + + def provide(self): + """Provide the value from the first provider to return non-None. + + Each provider in the chain has its provide method called. The first + one in the chain to return a non-None value is the returned from the + ChainProvider. When no non-None value is found, None is returned. + """ + for provider in self._providers: + value = provider.provide() + if value is not None: + return self._convert_type(value) + return None + + def set_default_provider(self, default_provider): + if self._providers and isinstance( + self._providers[-1], ConstantProvider + ): + self._providers[-1] = default_provider + else: + self._providers.append(default_provider) + + num_of_constants = sum( + isinstance(provider, ConstantProvider) + for provider in self._providers + ) + if num_of_constants > 1: + logger.info( + 'ChainProvider object contains multiple ' + 'instances of ConstantProvider objects' + ) + + def _convert_type(self, value): + if self._conversion_func is not None: + return self._conversion_func(value) + return value + + def __repr__(self): + return '[{}]'.format(', '.join([str(p) for p in self._providers])) + + +class InstanceVarProvider(BaseProvider): + """This class loads config values from the session instance vars.""" + + def __init__(self, instance_var, session): + """Initialize InstanceVarProvider. + + :type instance_var: str + :param instance_var: The instance variable to load from the session. + + :type session: :class:`botocore.session.Session` + :param session: The botocore session to get the loaded configuration + file variables from. + """ + self._instance_var = instance_var + self._session = session + + def __deepcopy__(self, memo): + return InstanceVarProvider( + copy.deepcopy(self._instance_var, memo), self._session + ) + + def provide(self): + """Provide a config value from the session instance vars.""" + instance_vars = self._session.instance_variables() + value = instance_vars.get(self._instance_var) + return value + + def __repr__(self): + return f'InstanceVarProvider(instance_var={self._instance_var}, session={self._session})' + + +class ScopedConfigProvider(BaseProvider): + def __init__(self, config_var_name, session): + """Initialize ScopedConfigProvider. + + :type config_var_name: str or tuple + :param config_var_name: The name of the config variable to load from + the configuration file. If the value is a tuple, it must only + consist of two items, where the first item represents the section + and the second item represents the config var name in the section. + + :type session: :class:`botocore.session.Session` + :param session: The botocore session to get the loaded configuration + file variables from. + """ + self._config_var_name = config_var_name + self._session = session + + def __deepcopy__(self, memo): + return ScopedConfigProvider( + copy.deepcopy(self._config_var_name, memo), self._session + ) + + def provide(self): + """Provide a value from a config file property.""" + scoped_config = self._session.get_scoped_config() + if isinstance(self._config_var_name, tuple): + section_config = scoped_config.get(self._config_var_name[0]) + if not isinstance(section_config, dict): + return None + return section_config.get(self._config_var_name[1]) + return scoped_config.get(self._config_var_name) + + def __repr__(self): + return f'ScopedConfigProvider(config_var_name={self._config_var_name}, session={self._session})' + + +class EnvironmentProvider(BaseProvider): + """This class loads config values from environment variables.""" + + def __init__(self, name, env): + """Initialize with the keys in the dictionary to check. + + :type name: str + :param name: The key with that name will be loaded and returned. + + :type env: dict + :param env: Environment variables dictionary to get variables from. + """ + self._name = name + self._env = env + + def __deepcopy__(self, memo): + return EnvironmentProvider( + copy.deepcopy(self._name, memo), copy.deepcopy(self._env, memo) + ) + + def provide(self): + """Provide a config value from a source dictionary.""" + if self._name in self._env: + return self._env[self._name] + return None + + def __repr__(self): + return f'EnvironmentProvider(name={self._name}, env={self._env})' + + +class SectionConfigProvider(BaseProvider): + """Provides a dictionary from a section in the scoped config + + This is useful for retrieving scoped config variables (i.e. s3) that have + their own set of config variables and resolving logic. + """ + + def __init__(self, section_name, session, override_providers=None): + self._section_name = section_name + self._session = session + self._scoped_config_provider = ScopedConfigProvider( + self._section_name, self._session + ) + self._override_providers = override_providers + if self._override_providers is None: + self._override_providers = {} + + def __deepcopy__(self, memo): + return SectionConfigProvider( + copy.deepcopy(self._section_name, memo), + self._session, + copy.deepcopy(self._override_providers, memo), + ) + + def provide(self): + section_config = self._scoped_config_provider.provide() + if section_config and not isinstance(section_config, dict): + logger.debug( + "The %s config key is not a dictionary type, " + "ignoring its value of: %s", + self._section_name, + section_config, + ) + return None + for section_config_var, provider in self._override_providers.items(): + provider_val = provider.provide() + if provider_val is not None: + if section_config is None: + section_config = {} + section_config[section_config_var] = provider_val + return section_config + + def set_default_provider(self, key, default_provider): + provider = self._override_providers.get(key) + if isinstance(provider, ChainProvider): + provider.set_default_provider(default_provider) + return + elif isinstance(provider, BaseProvider): + default_provider = ChainProvider( + providers=[provider, default_provider] + ) + self._override_providers[key] = default_provider + + def __repr__(self): + return ( + f'SectionConfigProvider(section_name={self._section_name}, ' + f'session={self._session}, ' + f'override_providers={self._override_providers})' + ) + + +class ConstantProvider(BaseProvider): + """This provider provides a constant value.""" + + def __init__(self, value): + self._value = value + + def __deepcopy__(self, memo): + return ConstantProvider(copy.deepcopy(self._value, memo)) + + def provide(self): + """Provide the constant value given during initialization.""" + return self._value + + def __repr__(self): + return f'ConstantProvider(value={self._value})' + + +class ConfiguredEndpointProvider(BaseProvider): + """Lookup an endpoint URL from environment variable or shared config file. + + NOTE: This class is considered private and is subject to abrupt breaking + changes or removal without prior announcement. Please do not use it + directly. + """ + + _ENDPOINT_URL_LOOKUP_ORDER = [ + 'environment_service', + 'environment_global', + 'config_service', + 'config_global', + ] + + def __init__( + self, + full_config, + scoped_config, + client_name, + environ=None, + ): + """Initialize a ConfiguredEndpointProviderChain. + + :type full_config: dict + :param full_config: This is the dict representing the full + configuration file. + + :type scoped_config: dict + :param scoped_config: This is the dict representing the configuration + for the current profile for the session. + + :type client_name: str + :param client_name: The name used to instantiate a client using + botocore.session.Session.create_client. + + :type environ: dict + :param environ: A mapping to use for environment variables. If this + is not provided it will default to use os.environ. + """ + self._full_config = full_config + self._scoped_config = scoped_config + self._client_name = client_name + self._transformed_service_id = self._get_snake_case_service_id( + self._client_name + ) + if environ is None: + environ = os.environ + self._environ = environ + + def provide(self): + """Lookup the configured endpoint URL. + + The order is: + + 1. The value provided by a service-specific environment variable. + 2. The value provided by the global endpoint environment variable + (AWS_ENDPOINT_URL). + 3. The value provided by a service-specific parameter from a services + definition section in the shared configuration file. + 4. The value provided by the global parameter from a services + definition section in the shared configuration file. + """ + for location in self._ENDPOINT_URL_LOOKUP_ORDER: + logger.debug( + 'Looking for endpoint for %s via: %s', + self._client_name, + location, + ) + + endpoint_url = getattr(self, f'_get_endpoint_url_{location}')() + + if endpoint_url: + logger.info( + 'Found endpoint for %s via: %s.', + self._client_name, + location, + ) + return endpoint_url + + logger.debug('No configured endpoint found.') + return None + + def _get_snake_case_service_id(self, client_name): + # Get the service ID without loading the service data file, accounting + # for any aliases and standardizing the names with hyphens. + client_name = utils.SERVICE_NAME_ALIASES.get(client_name, client_name) + hyphenized_service_id = ( + utils.CLIENT_NAME_TO_HYPHENIZED_SERVICE_ID_OVERRIDES.get( + client_name, client_name + ) + ) + return hyphenized_service_id.replace('-', '_') + + def _get_service_env_var_name(self): + transformed_service_id_env = self._transformed_service_id.upper() + return f'AWS_ENDPOINT_URL_{transformed_service_id_env}' + + def _get_services_config(self): + if 'services' not in self._scoped_config: + return {} + + section_name = self._scoped_config['services'] + services_section = self._full_config.get('services', {}).get( + section_name + ) + + if not services_section: + error_msg = ( + f'The profile is configured to use the services ' + f'section but the "{section_name}" services ' + f'configuration does not exist.' + ) + raise InvalidConfigError(error_msg=error_msg) + + return services_section + + def _get_endpoint_url_config_service(self): + snakecase_service_id = self._transformed_service_id.lower() + return ( + self._get_services_config() + .get(snakecase_service_id, {}) + .get('endpoint_url') + ) + + def _get_endpoint_url_config_global(self): + return self._scoped_config.get('endpoint_url') + + def _get_endpoint_url_environment_service(self): + return EnvironmentProvider( + name=self._get_service_env_var_name(), env=self._environ + ).provide() + + def _get_endpoint_url_environment_global(self): + return EnvironmentProvider( + name='AWS_ENDPOINT_URL', env=self._environ + ).provide() diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/context.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/context.py new file mode 100644 index 0000000000000000000000000000000000000000..8034747729c1a48acea02bd7b430544b5c98c812 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/context.py @@ -0,0 +1,127 @@ +# Copyright 2025 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +""" +NOTE: All classes and functions in this module are considered private and are +subject to abrupt breaking changes. Please do not use them directly. +""" + +from contextlib import contextmanager +from contextvars import ContextVar +from copy import deepcopy +from dataclasses import dataclass, field +from functools import wraps + + +@dataclass +class ClientContext: + """ + Encapsulation of objects tracked within the ``_context`` context variable. + + ``features`` is a set responsible for storing features used during + preparation of an AWS request. ``botocore.useragent.register_feature_id`` + is used to add to this set. + """ + + features: set[str] = field(default_factory=set) + + +_context = ContextVar("_context") + + +def get_context(): + """Get the current ``_context`` context variable if set, else None.""" + return _context.get(None) + + +def set_context(ctx): + """Set the current ``_context`` context variable. + + :type ctx: ClientContext + :param ctx: Client context object to set as the current context variable. + + :rtype: contextvars.Token + :returns: Token object used to revert the context variable to what it was + before the corresponding set. + """ + token = _context.set(ctx) + return token + + +def reset_context(token): + """Reset the current ``_context`` context variable. + + :type token: contextvars.Token + :param token: Token object to reset the context variable. + """ + _context.reset(token) + + +@contextmanager +def start_as_current_context(ctx=None): + """ + Context manager that copies the passed or current context object and sets + it as the current context variable. If no context is found, a new + ``ClientContext`` object is created. It mainly ensures the context variable + is reset to the previous value once the executed code returns. + + Example usage: + + def my_feature(): + with start_as_current_context(): + register_feature_id('MY_FEATURE') + pass + + :type ctx: ClientContext + :param ctx: The client context object to set as the new context variable. + If not provided, the current or a new context variable is used. + """ + current = ctx or get_context() + if current is None: + new = ClientContext() + else: + new = deepcopy(current) + token = set_context(new) + try: + yield + finally: + reset_context(token) + + +def with_current_context(hook=None): + """ + Decorator that wraps ``start_as_current_context`` and optionally invokes a + hook within the newly-set context. This is just syntactic sugar to avoid + indenting existing code under the context manager. + + Example usage: + + @with_current_context(partial(register_feature_id, 'MY_FEATURE')) + def my_feature(): + pass + + :type hook: callable + :param hook: A callable that will be invoked within the scope of the + ``start_as_current_context`` context manager. + """ + + def decorator(func): + @wraps(func) + def wrapper(*args, **kwargs): + with start_as_current_context(): + if hook: + hook() + return func(*args, **kwargs) + + return wrapper + + return decorator diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/credentials.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/credentials.py new file mode 100644 index 0000000000000000000000000000000000000000..5e8dc80c930e59cb61946c29e595043aec0cb14c --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/credentials.py @@ -0,0 +1,2459 @@ +# Copyright (c) 2012-2013 Mitch Garnaat http://garnaat.org/ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import datetime +import getpass +import json +import logging +import os +import subprocess +import threading +import time +from collections import namedtuple +from copy import deepcopy +from hashlib import sha1 + +import dateutil.parser +from dateutil.parser import parse +from dateutil.tz import tzlocal, tzutc + +import botocore.compat +import botocore.configloader +from botocore import UNSIGNED +from botocore.compat import compat_shell_split, total_seconds +from botocore.config import Config +from botocore.exceptions import ( + ConfigNotFound, + CredentialRetrievalError, + InfiniteLoopConfigError, + InvalidConfigError, + MetadataRetrievalError, + PartialCredentialsError, + RefreshWithMFAUnsupportedError, + UnauthorizedSSOTokenError, + UnknownCredentialError, +) +from botocore.tokens import SSOTokenProvider +from botocore.useragent import register_feature_id, register_feature_ids +from botocore.utils import ( + ArnParser, + ContainerMetadataFetcher, + FileWebIdentityTokenLoader, + InstanceMetadataFetcher, + JSONFileCache, + SSOTokenLoader, + create_nested_client, + parse_key_val_file, + resolve_imds_endpoint_mode, +) + +logger = logging.getLogger(__name__) +ReadOnlyCredentials = namedtuple( + 'ReadOnlyCredentials', + ['access_key', 'secret_key', 'token', 'account_id'], + defaults=(None,), +) + +_DEFAULT_MANDATORY_REFRESH_TIMEOUT = 10 * 60 # 10 min +_DEFAULT_ADVISORY_REFRESH_TIMEOUT = 15 * 60 # 15 min + + +def create_credential_resolver(session, cache=None, region_name=None): + """Create a default credential resolver. + + This creates a pre-configured credential resolver + that includes the default lookup chain for + credentials. + + """ + profile_name = session.get_config_variable('profile') or 'default' + metadata_timeout = session.get_config_variable('metadata_service_timeout') + num_attempts = session.get_config_variable('metadata_service_num_attempts') + disable_env_vars = session.instance_variables().get('profile') is not None + + imds_config = { + 'ec2_metadata_service_endpoint': session.get_config_variable( + 'ec2_metadata_service_endpoint' + ), + 'ec2_metadata_service_endpoint_mode': resolve_imds_endpoint_mode( + session + ), + 'ec2_credential_refresh_window': _DEFAULT_ADVISORY_REFRESH_TIMEOUT, + 'ec2_metadata_v1_disabled': session.get_config_variable( + 'ec2_metadata_v1_disabled' + ), + } + + if cache is None: + cache = {} + + env_provider = EnvProvider() + container_provider = ContainerProvider() + instance_metadata_provider = InstanceMetadataProvider( + iam_role_fetcher=InstanceMetadataFetcher( + timeout=metadata_timeout, + num_attempts=num_attempts, + user_agent=session.user_agent(), + config=imds_config, + ) + ) + + profile_provider_builder = ProfileProviderBuilder( + session, cache=cache, region_name=region_name + ) + assume_role_provider = AssumeRoleProvider( + load_config=lambda: session.full_config, + client_creator=_get_client_creator(session, region_name), + cache=cache, + profile_name=profile_name, + credential_sourcer=CanonicalNameCredentialSourcer( + [env_provider, container_provider, instance_metadata_provider] + ), + profile_provider_builder=profile_provider_builder, + ) + + pre_profile = [ + env_provider, + assume_role_provider, + ] + profile_providers = profile_provider_builder.providers( + profile_name=profile_name, + disable_env_vars=disable_env_vars, + ) + post_profile = [ + OriginalEC2Provider(), + BotoProvider(), + container_provider, + instance_metadata_provider, + ] + providers = pre_profile + profile_providers + post_profile + + if disable_env_vars: + # An explicitly provided profile will negate an EnvProvider. + # We will defer to providers that understand the "profile" + # concept to retrieve credentials. + # The one edge case if is all three values are provided via + # env vars: + # export AWS_ACCESS_KEY_ID=foo + # export AWS_SECRET_ACCESS_KEY=bar + # export AWS_PROFILE=baz + # Then, just like our client() calls, the explicit credentials + # will take precedence. + # + # This precedence is enforced by leaving the EnvProvider in the chain. + # This means that the only way a "profile" would win is if the + # EnvProvider does not return credentials, which is what we want + # in this scenario. + providers.remove(env_provider) + logger.debug( + 'Skipping environment variable credential check' + ' because profile name was explicitly set.' + ) + + resolver = CredentialResolver(providers=providers) + return resolver + + +class ProfileProviderBuilder: + """This class handles the creation of profile based providers. + + NOTE: This class is only intended for internal use. + + This class handles the creation and ordering of the various credential + providers that primarly source their configuration from the shared config. + This is needed to enable sharing between the default credential chain and + the source profile chain created by the assume role provider. + """ + + def __init__( + self, session, cache=None, region_name=None, sso_token_cache=None + ): + self._session = session + self._cache = cache + self._region_name = region_name + self._sso_token_cache = sso_token_cache + + def providers(self, profile_name, disable_env_vars=False): + return [ + self._create_web_identity_provider( + profile_name, + disable_env_vars, + ), + self._create_sso_provider(profile_name), + self._create_shared_credential_provider(profile_name), + self._create_process_provider(profile_name), + self._create_config_provider(profile_name), + ] + + def _create_process_provider(self, profile_name): + return ProcessProvider( + profile_name=profile_name, + load_config=lambda: self._session.full_config, + ) + + def _create_shared_credential_provider(self, profile_name): + credential_file = self._session.get_config_variable('credentials_file') + return SharedCredentialProvider( + profile_name=profile_name, + creds_filename=credential_file, + ) + + def _create_config_provider(self, profile_name): + config_file = self._session.get_config_variable('config_file') + return ConfigProvider( + profile_name=profile_name, + config_filename=config_file, + ) + + def _create_web_identity_provider(self, profile_name, disable_env_vars): + return AssumeRoleWithWebIdentityProvider( + load_config=lambda: self._session.full_config, + client_creator=_get_client_creator( + self._session, self._region_name + ), + cache=self._cache, + profile_name=profile_name, + disable_env_vars=disable_env_vars, + ) + + def _create_sso_provider(self, profile_name): + return SSOProvider( + load_config=lambda: self._session.full_config, + client_creator=self._session.create_client, + profile_name=profile_name, + cache=self._cache, + token_cache=self._sso_token_cache, + token_provider=SSOTokenProvider( + self._session, + cache=self._sso_token_cache, + profile_name=profile_name, + ), + ) + + +def get_credentials(session): + resolver = create_credential_resolver(session) + return resolver.load_credentials() + + +def _local_now(): + return datetime.datetime.now(tzlocal()) + + +def _parse_if_needed(value): + if isinstance(value, datetime.datetime): + return value + return parse(value) + + +def _serialize_if_needed(value, iso=False): + if isinstance(value, datetime.datetime): + if iso: + return value.isoformat() + return value.strftime('%Y-%m-%dT%H:%M:%S%Z') + return value + + +def _get_client_creator(session, region_name): + def client_creator(service_name, **kwargs): + create_client_kwargs = {'region_name': region_name} + create_client_kwargs.update(**kwargs) + return create_nested_client( + session, service_name, **create_client_kwargs + ) + + return client_creator + + +def create_assume_role_refresher(client, params): + def refresh(): + response = client.assume_role(**params) + credentials = response['Credentials'] + # We need to normalize the credential names to + # the values expected by the refresh creds. + return { + 'access_key': credentials['AccessKeyId'], + 'secret_key': credentials['SecretAccessKey'], + 'token': credentials['SessionToken'], + 'expiry_time': _serialize_if_needed(credentials['Expiration']), + } + + return refresh + + +def create_mfa_serial_refresher(actual_refresh): + class _Refresher: + def __init__(self, refresh): + self._refresh = refresh + self._has_been_called = False + + def __call__(self): + if self._has_been_called: + # We can explore an option in the future to support + # reprompting for MFA, but for now we just error out + # when the temp creds expire. + raise RefreshWithMFAUnsupportedError() + self._has_been_called = True + return self._refresh() + + return _Refresher(actual_refresh) + + +class Credentials: + """ + Holds the credentials needed to authenticate requests. + + :param str access_key: The access key part of the credentials. + :param str secret_key: The secret key part of the credentials. + :param str token: The security token, valid only for session credentials. + :param str method: A string which identifies where the credentials + were found. + :param str account_id: (optional) An account ID associated with the credentials. + """ + + def __init__( + self, access_key, secret_key, token=None, method=None, account_id=None + ): + self.access_key = access_key + self.secret_key = secret_key + self.token = token + + if method is None: + method = 'explicit' + self.method = method + self.account_id = account_id + + self._normalize() + + def _normalize(self): + # Keys would sometimes (accidentally) contain non-ascii characters. + # It would cause a confusing UnicodeDecodeError in Python 2. + # We explicitly convert them into unicode to avoid such error. + # + # Eventually the service will decide whether to accept the credential. + # This also complies with the behavior in Python 3. + self.access_key = botocore.compat.ensure_unicode(self.access_key) + self.secret_key = botocore.compat.ensure_unicode(self.secret_key) + + def get_frozen_credentials(self): + return ReadOnlyCredentials( + self.access_key, self.secret_key, self.token, self.account_id + ) + + def get_deferred_property(self, property_name): + def get_property(): + return getattr(self, property_name, None) + + return get_property + + +class RefreshableCredentials(Credentials): + """ + Holds the credentials needed to authenticate requests. In addition, it + knows how to refresh itself. + + :param str access_key: The access key part of the credentials. + :param str secret_key: The secret key part of the credentials. + :param str token: The security token, valid only for session credentials. + :param datetime expiry_time: The expiration time of the credentials. + :param function refresh_using: Callback function to refresh the credentials. + :param str method: A string which identifies where the credentials + were found. + :param function time_fetcher: Callback function to retrieve current time. + """ + + # The time at which we'll attempt to refresh, but not + # block if someone else is refreshing. + _advisory_refresh_timeout = _DEFAULT_ADVISORY_REFRESH_TIMEOUT + # The time at which all threads will block waiting for + # refreshed credentials. + _mandatory_refresh_timeout = _DEFAULT_MANDATORY_REFRESH_TIMEOUT + + def __init__( + self, + access_key, + secret_key, + token, + expiry_time, + refresh_using, + method, + time_fetcher=_local_now, + advisory_timeout=None, + mandatory_timeout=None, + account_id=None, + ): + self._refresh_using = refresh_using + self._access_key = access_key + self._secret_key = secret_key + self._token = token + self._account_id = account_id + self._expiry_time = expiry_time + self._time_fetcher = time_fetcher + self._refresh_lock = threading.Lock() + self.method = method + self._frozen_credentials = ReadOnlyCredentials( + access_key, secret_key, token, account_id + ) + self._normalize() + if advisory_timeout is not None: + self._advisory_refresh_timeout = advisory_timeout + if mandatory_timeout is not None: + self._mandatory_refresh_timeout = mandatory_timeout + + def _normalize(self): + self._access_key = botocore.compat.ensure_unicode(self._access_key) + self._secret_key = botocore.compat.ensure_unicode(self._secret_key) + + @classmethod + def create_from_metadata( + cls, + metadata, + refresh_using, + method, + advisory_timeout=None, + mandatory_timeout=None, + ): + kwargs = {} + if advisory_timeout is not None: + kwargs['advisory_timeout'] = advisory_timeout + if mandatory_timeout is not None: + kwargs['mandatory_timeout'] = mandatory_timeout + + instance = cls( + access_key=metadata['access_key'], + secret_key=metadata['secret_key'], + token=metadata['token'], + expiry_time=cls._expiry_datetime(metadata['expiry_time']), + method=method, + refresh_using=refresh_using, + account_id=metadata.get('account_id'), + **kwargs, + ) + return instance + + @property + def access_key(self): + """Warning: Using this property can lead to race conditions if you + access another property subsequently along the refresh boundary. + Please use get_frozen_credentials instead. + """ + self._refresh() + return self._access_key + + @access_key.setter + def access_key(self, value): + self._access_key = value + + @property + def secret_key(self): + """Warning: Using this property can lead to race conditions if you + access another property subsequently along the refresh boundary. + Please use get_frozen_credentials instead. + """ + self._refresh() + return self._secret_key + + @secret_key.setter + def secret_key(self, value): + self._secret_key = value + + @property + def token(self): + """Warning: Using this property can lead to race conditions if you + access another property subsequently along the refresh boundary. + Please use get_frozen_credentials instead. + """ + self._refresh() + return self._token + + @token.setter + def token(self, value): + self._token = value + + @property + def account_id(self): + """Warning: Using this property can lead to race conditions if you + access another property subsequently along the refresh boundary. + Please use get_frozen_credentials instead. + """ + self._refresh() + return self._account_id + + @account_id.setter + def account_id(self, value): + self._account_id = value + + def _seconds_remaining(self): + delta = self._expiry_time - self._time_fetcher() + return total_seconds(delta) + + def refresh_needed(self, refresh_in=None): + """Check if a refresh is needed. + + A refresh is needed if the expiry time associated + with the temporary credentials is less than the + provided ``refresh_in``. If ``time_delta`` is not + provided, ``self.advisory_refresh_needed`` will be used. + + For example, if your temporary credentials expire + in 10 minutes and the provided ``refresh_in`` is + ``15 * 60``, then this function will return ``True``. + + :type refresh_in: int + :param refresh_in: The number of seconds before the + credentials expire in which refresh attempts should + be made. + + :return: True if refresh needed, False otherwise. + + """ + if self._expiry_time is None: + # No expiration, so assume we don't need to refresh. + return False + + if refresh_in is None: + refresh_in = self._advisory_refresh_timeout + # The credentials should be refreshed if they're going to expire + # in less than 5 minutes. + if self._seconds_remaining() >= refresh_in: + # There's enough time left. Don't refresh. + return False + logger.debug("Credentials need to be refreshed.") + return True + + def _is_expired(self): + # Checks if the current credentials are expired. + return self.refresh_needed(refresh_in=0) + + def _refresh(self): + # In the common case where we don't need a refresh, we + # can immediately exit and not require acquiring the + # refresh lock. + if not self.refresh_needed(self._advisory_refresh_timeout): + return + + # acquire() doesn't accept kwargs, but False is indicating + # that we should not block if we can't acquire the lock. + # If we aren't able to acquire the lock, we'll trigger + # the else clause. + if self._refresh_lock.acquire(False): + try: + if not self.refresh_needed(self._advisory_refresh_timeout): + return + is_mandatory_refresh = self.refresh_needed( + self._mandatory_refresh_timeout + ) + self._protected_refresh(is_mandatory=is_mandatory_refresh) + return + finally: + self._refresh_lock.release() + elif self.refresh_needed(self._mandatory_refresh_timeout): + # If we're within the mandatory refresh window, + # we must block until we get refreshed credentials. + with self._refresh_lock: + if not self.refresh_needed(self._mandatory_refresh_timeout): + return + self._protected_refresh(is_mandatory=True) + + def _protected_refresh(self, is_mandatory): + # precondition: this method should only be called if you've acquired + # the self._refresh_lock. + try: + metadata = self._refresh_using() + except Exception: + period_name = 'mandatory' if is_mandatory else 'advisory' + logger.warning( + "Refreshing temporary credentials failed " + "during %s refresh period.", + period_name, + exc_info=True, + ) + if is_mandatory: + # If this is a mandatory refresh, then + # all errors that occur when we attempt to refresh + # credentials are propagated back to the user. + raise + # Otherwise we'll just return. + # The end result will be that we'll use the current + # set of temporary credentials we have. + return + self._set_from_data(metadata) + self._frozen_credentials = ReadOnlyCredentials( + self._access_key, self._secret_key, self._token, self._account_id + ) + if self._is_expired(): + # We successfully refreshed credentials but for whatever + # reason, our refreshing function returned credentials + # that are still expired. In this scenario, the only + # thing we can do is let the user know and raise + # an exception. + msg = ( + "Credentials were refreshed, but the " + "refreshed credentials are still expired." + ) + logger.warning(msg) + raise RuntimeError(msg) + + @staticmethod + def _expiry_datetime(time_str): + return parse(time_str) + + def _set_from_data(self, data): + expected_keys = ['access_key', 'secret_key', 'token', 'expiry_time'] + if not data: + missing_keys = expected_keys + else: + missing_keys = [k for k in expected_keys if k not in data] + + if missing_keys: + message = "Credential refresh failed, response did not contain: %s" + raise CredentialRetrievalError( + provider=self.method, + error_msg=message % ', '.join(missing_keys), + ) + + self.access_key = data['access_key'] + self.secret_key = data['secret_key'] + self.token = data['token'] + self._expiry_time = parse(data['expiry_time']) + self.account_id = data.get('account_id') + logger.debug( + "Retrieved credentials will expire at: %s", self._expiry_time + ) + self._normalize() + + def get_frozen_credentials(self): + """Return immutable credentials. + + The ``access_key``, ``secret_key``, and ``token`` properties + on this class will always check and refresh credentials if + needed before returning the particular credentials. + + This has an edge case where you can get inconsistent + credentials. Imagine this: + + # Current creds are "t1" + tmp.access_key ---> expired? no, so return t1.access_key + # ---- time is now expired, creds need refreshing to "t2" ---- + tmp.secret_key ---> expired? yes, refresh and return t2.secret_key + + This means we're using the access key from t1 with the secret key + from t2. To fix this issue, you can request a frozen credential object + which is guaranteed not to change. + + The frozen credentials returned from this method should be used + immediately and then discarded. The typical usage pattern would + be:: + + creds = RefreshableCredentials(...) + some_code = SomeSignerObject() + # I'm about to sign the request. + # The frozen credentials are only used for the + # duration of generate_presigned_url and will be + # immediately thrown away. + request = some_code.sign_some_request( + with_credentials=creds.get_frozen_credentials()) + print("Signed request:", request) + + """ + self._refresh() + return self._frozen_credentials + + +class DeferredRefreshableCredentials(RefreshableCredentials): + """Refreshable credentials that don't require initial credentials. + + refresh_using will be called upon first access. + """ + + def __init__(self, refresh_using, method, time_fetcher=_local_now): + self._refresh_using = refresh_using + self._access_key = None + self._secret_key = None + self._token = None + self._account_id = None + self._expiry_time = None + self._time_fetcher = time_fetcher + self._refresh_lock = threading.Lock() + self.method = method + self._frozen_credentials = None + + def refresh_needed(self, refresh_in=None): + if self._frozen_credentials is None: + return True + return super().refresh_needed(refresh_in) + + +class CachedCredentialFetcher: + DEFAULT_EXPIRY_WINDOW_SECONDS = 60 * 15 + + def __init__(self, cache=None, expiry_window_seconds=None): + if cache is None: + cache = {} + self._cache = cache + self._cache_key = self._create_cache_key() + if expiry_window_seconds is None: + expiry_window_seconds = self.DEFAULT_EXPIRY_WINDOW_SECONDS + self._expiry_window_seconds = expiry_window_seconds + self.feature_ids = set() + + def _create_cache_key(self): + raise NotImplementedError('_create_cache_key()') + + def _make_file_safe(self, filename): + # Replace :, path sep, and / to make it the string filename safe. + filename = filename.replace(':', '_').replace(os.sep, '_') + return filename.replace('/', '_') + + def _get_credentials(self): + raise NotImplementedError('_get_credentials()') + + def fetch_credentials(self): + return self._get_cached_credentials() + + def _get_cached_credentials(self): + """Get up-to-date credentials. + + This will check the cache for up-to-date credentials, calling assume + role if none are available. + """ + response = self._load_from_cache() + if response is None: + response = self._get_credentials() + self._write_to_cache(response) + else: + logger.debug("Credentials for role retrieved from cache.") + + creds = response['Credentials'] + expiration = _serialize_if_needed(creds['Expiration'], iso=True) + credentials = { + 'access_key': creds['AccessKeyId'], + 'secret_key': creds['SecretAccessKey'], + 'token': creds['SessionToken'], + 'expiry_time': expiration, + 'account_id': creds.get('AccountId'), + } + + return credentials + + def _load_from_cache(self): + if self._cache_key in self._cache: + creds = deepcopy(self._cache[self._cache_key]) + if not self._is_expired(creds): + return creds + else: + logger.debug( + "Credentials were found in cache, but they are expired." + ) + return None + + def _write_to_cache(self, response): + self._cache[self._cache_key] = deepcopy(response) + + def _is_expired(self, credentials): + """Check if credentials are expired.""" + end_time = _parse_if_needed(credentials['Credentials']['Expiration']) + seconds = total_seconds(end_time - _local_now()) + return seconds < self._expiry_window_seconds + + +class BaseAssumeRoleCredentialFetcher(CachedCredentialFetcher): + def __init__( + self, + client_creator, + role_arn, + extra_args=None, + cache=None, + expiry_window_seconds=None, + ): + self._client_creator = client_creator + self._role_arn = role_arn + + if extra_args is None: + self._assume_kwargs = {} + else: + self._assume_kwargs = deepcopy(extra_args) + self._assume_kwargs['RoleArn'] = self._role_arn + + self._role_session_name = self._assume_kwargs.get('RoleSessionName') + self._using_default_session_name = False + if not self._role_session_name: + self._generate_assume_role_name() + + super().__init__(cache, expiry_window_seconds) + + def _generate_assume_role_name(self): + self._role_session_name = f'botocore-session-{int(time.time())}' + self._assume_kwargs['RoleSessionName'] = self._role_session_name + self._using_default_session_name = True + + def _create_cache_key(self): + """Create a predictable cache key for the current configuration. + + The cache key is intended to be compatible with file names. + """ + args = deepcopy(self._assume_kwargs) + + # The role session name gets randomly generated, so we don't want it + # in the hash. + if self._using_default_session_name: + del args['RoleSessionName'] + + if 'Policy' in args: + # To have a predictable hash, the keys of the policy must be + # sorted, so we have to load it here to make sure it gets sorted + # later on. + args['Policy'] = json.loads(args['Policy']) + + args = json.dumps(args, sort_keys=True) + argument_hash = sha1(args.encode('utf-8')).hexdigest() + return self._make_file_safe(argument_hash) + + def _add_account_id_to_response(self, response): + role_arn = response.get('AssumedRoleUser', {}).get('Arn') + if ArnParser.is_arn(role_arn): + arn_parser = ArnParser() + account_id = arn_parser.parse_arn(role_arn)['account'] + response['Credentials']['AccountId'] = account_id + else: + logger.debug("Unable to extract account ID from Arn: %s", role_arn) + + +class AssumeRoleCredentialFetcher(BaseAssumeRoleCredentialFetcher): + def __init__( + self, + client_creator, + source_credentials, + role_arn, + extra_args=None, + mfa_prompter=None, + cache=None, + expiry_window_seconds=None, + ): + """ + :type client_creator: callable + :param client_creator: A callable that creates a client taking + arguments like ``Session.create_client``. + + :type source_credentials: Credentials + :param source_credentials: The credentials to use to create the + client for the call to AssumeRole. + + :type role_arn: str + :param role_arn: The ARN of the role to be assumed. + + :type extra_args: dict + :param extra_args: Any additional arguments to add to the assume + role request using the format of the botocore operation. + Possible keys include, but may not be limited to, + DurationSeconds, Policy, SerialNumber, ExternalId and + RoleSessionName. + + :type mfa_prompter: callable + :param mfa_prompter: A callable that returns input provided by the + user (i.e raw_input, getpass.getpass, etc.). + + :type cache: dict + :param cache: An object that supports ``__getitem__``, + ``__setitem__``, and ``__contains__``. An example of this is + the ``JSONFileCache`` class in aws-cli. + + :type expiry_window_seconds: int + :param expiry_window_seconds: The amount of time, in seconds, + """ + self._source_credentials = source_credentials + self._mfa_prompter = mfa_prompter + if self._mfa_prompter is None: + self._mfa_prompter = getpass.getpass + + super().__init__( + client_creator, + role_arn, + extra_args=extra_args, + cache=cache, + expiry_window_seconds=expiry_window_seconds, + ) + + def _get_credentials(self): + """Get credentials by calling assume role.""" + register_feature_ids(self.feature_ids) + kwargs = self._assume_role_kwargs() + client = self._create_client() + response = client.assume_role(**kwargs) + self._add_account_id_to_response(response) + return response + + def _assume_role_kwargs(self): + """Get the arguments for assume role based on current configuration.""" + assume_role_kwargs = deepcopy(self._assume_kwargs) + + mfa_serial = assume_role_kwargs.get('SerialNumber') + + if mfa_serial is not None: + prompt = f'Enter MFA code for {mfa_serial}: ' + token_code = self._mfa_prompter(prompt) + assume_role_kwargs['TokenCode'] = token_code + + duration_seconds = assume_role_kwargs.get('DurationSeconds') + + if duration_seconds is not None: + assume_role_kwargs['DurationSeconds'] = duration_seconds + + return assume_role_kwargs + + def _create_client(self): + """Create an STS client using the source credentials.""" + frozen_credentials = self._source_credentials.get_frozen_credentials() + return self._client_creator( + 'sts', + aws_access_key_id=frozen_credentials.access_key, + aws_secret_access_key=frozen_credentials.secret_key, + aws_session_token=frozen_credentials.token, + ) + + +class AssumeRoleWithWebIdentityCredentialFetcher( + BaseAssumeRoleCredentialFetcher +): + def __init__( + self, + client_creator, + web_identity_token_loader, + role_arn, + extra_args=None, + cache=None, + expiry_window_seconds=None, + ): + """ + :type client_creator: callable + :param client_creator: A callable that creates a client taking + arguments like ``Session.create_client``. + + :type web_identity_token_loader: callable + :param web_identity_token_loader: A callable that takes no arguments + and returns a web identity token str. + + :type role_arn: str + :param role_arn: The ARN of the role to be assumed. + + :type extra_args: dict + :param extra_args: Any additional arguments to add to the assume + role request using the format of the botocore operation. + Possible keys include, but may not be limited to, + DurationSeconds, Policy, SerialNumber, ExternalId and + RoleSessionName. + + :type cache: dict + :param cache: An object that supports ``__getitem__``, + ``__setitem__``, and ``__contains__``. An example of this is + the ``JSONFileCache`` class in aws-cli. + + :type expiry_window_seconds: int + :param expiry_window_seconds: The amount of time, in seconds, + """ + self._web_identity_token_loader = web_identity_token_loader + + super().__init__( + client_creator, + role_arn, + extra_args=extra_args, + cache=cache, + expiry_window_seconds=expiry_window_seconds, + ) + + def _get_credentials(self): + """Get credentials by calling assume role.""" + register_feature_ids(self.feature_ids) + kwargs = self._assume_role_kwargs() + # Assume role with web identity does not require credentials other than + # the token, explicitly configure the client to not sign requests. + config = Config(signature_version=UNSIGNED) + client = self._client_creator('sts', config=config) + response = client.assume_role_with_web_identity(**kwargs) + self._add_account_id_to_response(response) + return response + + def _assume_role_kwargs(self): + """Get the arguments for assume role based on current configuration.""" + assume_role_kwargs = deepcopy(self._assume_kwargs) + identity_token = self._web_identity_token_loader() + assume_role_kwargs['WebIdentityToken'] = identity_token + + return assume_role_kwargs + + +class CredentialProvider: + # A short name to identify the provider within botocore. + METHOD = None + + # A name to identify the provider for use in cross-sdk features like + # assume role's `credential_source` configuration option. These names + # are to be treated in a case-insensitive way. NOTE: any providers not + # implemented in botocore MUST prefix their canonical names with + # 'custom' or we DO NOT guarantee that it will work with any features + # that this provides. + CANONICAL_NAME = None + + def __init__(self, session=None): + self.session = session + + def load(self): + """ + Loads the credentials from their source & sets them on the object. + + Subclasses should implement this method (by reading from disk, the + environment, the network or wherever), returning ``True`` if they were + found & loaded. + + If not found, this method should return ``False``, indictating that the + ``CredentialResolver`` should fall back to the next available method. + + The default implementation does nothing, assuming the user has set the + ``access_key/secret_key/token`` themselves. + + :returns: Whether credentials were found & set + :rtype: Credentials + """ + return True + + def _extract_creds_from_mapping(self, mapping, *key_names): + found = [] + for key_name in key_names: + try: + found.append(mapping[key_name]) + except KeyError: + raise PartialCredentialsError( + provider=self.METHOD, cred_var=key_name + ) + return found + + +class ProcessProvider(CredentialProvider): + METHOD = 'custom-process' + + def __init__(self, profile_name, load_config, popen=subprocess.Popen): + self._profile_name = profile_name + self._load_config = load_config + self._loaded_config = None + self._popen = popen + + def load(self): + credential_process = self._credential_process + if credential_process is None: + return + + register_feature_id('CREDENTIALS_PROFILE_PROCESS') + creds_dict = self._retrieve_credentials_using(credential_process) + register_feature_id('CREDENTIALS_PROCESS') + if creds_dict.get('expiry_time') is not None: + return RefreshableCredentials.create_from_metadata( + creds_dict, + lambda: self._retrieve_credentials_using(credential_process), + self.METHOD, + ) + + return Credentials( + access_key=creds_dict['access_key'], + secret_key=creds_dict['secret_key'], + token=creds_dict.get('token'), + method=self.METHOD, + account_id=creds_dict.get('account_id'), + ) + + def _retrieve_credentials_using(self, credential_process): + # We're not using shell=True, so we need to pass the + # command and all arguments as a list. + process_list = compat_shell_split(credential_process) + p = self._popen( + process_list, stdout=subprocess.PIPE, stderr=subprocess.PIPE + ) + stdout, stderr = p.communicate() + if p.returncode != 0: + raise CredentialRetrievalError( + provider=self.METHOD, error_msg=stderr.decode('utf-8') + ) + parsed = botocore.compat.json.loads(stdout.decode('utf-8')) + version = parsed.get('Version', '') + if version != 1: + raise CredentialRetrievalError( + provider=self.METHOD, + error_msg=( + f"Unsupported version '{version}' for credential process " + f"provider, supported versions: 1" + ), + ) + try: + return { + 'access_key': parsed['AccessKeyId'], + 'secret_key': parsed['SecretAccessKey'], + 'token': parsed.get('SessionToken'), + 'expiry_time': parsed.get('Expiration'), + 'account_id': self._get_account_id(parsed), + } + except KeyError as e: + raise CredentialRetrievalError( + provider=self.METHOD, + error_msg=f"Missing required key in response: {e}", + ) + + @property + def _credential_process(self): + return self.profile_config.get('credential_process') + + @property + def profile_config(self): + if self._loaded_config is None: + self._loaded_config = self._load_config() + profile_config = self._loaded_config.get('profiles', {}).get( + self._profile_name, {} + ) + return profile_config + + def _get_account_id(self, parsed): + account_id = parsed.get('AccountId') + return account_id or self.profile_config.get('aws_account_id') + + +class InstanceMetadataProvider(CredentialProvider): + METHOD = 'iam-role' + CANONICAL_NAME = 'Ec2InstanceMetadata' + + def __init__(self, iam_role_fetcher): + self._role_fetcher = iam_role_fetcher + + def load(self): + fetcher = self._role_fetcher + # We do the first request, to see if we get useful data back. + # If not, we'll pass & move on to whatever's next in the credential + # chain. + metadata = fetcher.retrieve_iam_role_credentials() + if not metadata: + return None + register_feature_id('CREDENTIALS_IMDS') + logger.info( + 'Found credentials from IAM Role: %s', metadata['role_name'] + ) + # We manually set the data here, since we already made the request & + # have it. When the expiry is hit, the credentials will auto-refresh + # themselves. + creds = RefreshableCredentials.create_from_metadata( + metadata, + method=self.METHOD, + refresh_using=fetcher.retrieve_iam_role_credentials, + ) + return creds + + +class EnvProvider(CredentialProvider): + METHOD = 'env' + CANONICAL_NAME = 'Environment' + ACCESS_KEY = 'AWS_ACCESS_KEY_ID' + SECRET_KEY = 'AWS_SECRET_ACCESS_KEY' + # The token can come from either of these env var. + # AWS_SESSION_TOKEN is what other AWS SDKs have standardized on. + TOKENS = ['AWS_SECURITY_TOKEN', 'AWS_SESSION_TOKEN'] + EXPIRY_TIME = 'AWS_CREDENTIAL_EXPIRATION' + ACCOUNT_ID = 'AWS_ACCOUNT_ID' + + def __init__(self, environ=None, mapping=None): + """ + + :param environ: The environment variables (defaults to + ``os.environ`` if no value is provided). + :param mapping: An optional mapping of variable names to + environment variable names. Use this if you want to + change the mapping of access_key->AWS_ACCESS_KEY_ID, etc. + The dict can have up to 5 keys: + * ``access_key`` + * ``secret_key`` + * ``token`` + * ``expiry_time`` + * ``account_id`` + """ + if environ is None: + environ = os.environ + self.environ = environ + self._mapping = self._build_mapping(mapping) + + def _build_mapping(self, mapping): + # Mapping of variable name to env var name. + var_mapping = {} + if mapping is None: + # Use the class var default. + var_mapping['access_key'] = self.ACCESS_KEY + var_mapping['secret_key'] = self.SECRET_KEY + var_mapping['token'] = self.TOKENS + var_mapping['expiry_time'] = self.EXPIRY_TIME + var_mapping['account_id'] = self.ACCOUNT_ID + else: + var_mapping['access_key'] = mapping.get( + 'access_key', self.ACCESS_KEY + ) + var_mapping['secret_key'] = mapping.get( + 'secret_key', self.SECRET_KEY + ) + var_mapping['token'] = mapping.get('token', self.TOKENS) + if not isinstance(var_mapping['token'], list): + var_mapping['token'] = [var_mapping['token']] + var_mapping['expiry_time'] = mapping.get( + 'expiry_time', self.EXPIRY_TIME + ) + var_mapping['account_id'] = mapping.get( + 'account_id', self.ACCOUNT_ID + ) + return var_mapping + + def load(self): + """ + Search for credentials in explicit environment variables. + """ + + access_key = self.environ.get(self._mapping['access_key'], '') + + if access_key: + logger.info('Found credentials in environment variables.') + fetcher = self._create_credentials_fetcher() + credentials = fetcher(require_expiry=False) + register_feature_id('CREDENTIALS_ENV_VARS') + + expiry_time = credentials['expiry_time'] + if expiry_time is not None: + expiry_time = parse(expiry_time) + return RefreshableCredentials( + credentials['access_key'], + credentials['secret_key'], + credentials['token'], + expiry_time, + refresh_using=fetcher, + method=self.METHOD, + account_id=credentials['account_id'], + ) + + return Credentials( + credentials['access_key'], + credentials['secret_key'], + credentials['token'], + method=self.METHOD, + account_id=credentials['account_id'], + ) + else: + return None + + def _create_credentials_fetcher(self): + mapping = self._mapping + method = self.METHOD + environ = self.environ + + def fetch_credentials(require_expiry=True): + credentials = {} + + access_key = environ.get(mapping['access_key'], '') + if not access_key: + raise PartialCredentialsError( + provider=method, cred_var=mapping['access_key'] + ) + credentials['access_key'] = access_key + + secret_key = environ.get(mapping['secret_key'], '') + if not secret_key: + raise PartialCredentialsError( + provider=method, cred_var=mapping['secret_key'] + ) + credentials['secret_key'] = secret_key + + credentials['token'] = None + for token_env_var in mapping['token']: + token = environ.get(token_env_var, '') + if token: + credentials['token'] = token + break + + credentials['expiry_time'] = None + expiry_time = environ.get(mapping['expiry_time'], '') + if expiry_time: + credentials['expiry_time'] = expiry_time + if require_expiry and not expiry_time: + raise PartialCredentialsError( + provider=method, cred_var=mapping['expiry_time'] + ) + + credentials['account_id'] = None + account_id = environ.get(mapping['account_id'], '') + if account_id: + credentials['account_id'] = account_id + + return credentials + + return fetch_credentials + + +class OriginalEC2Provider(CredentialProvider): + METHOD = 'ec2-credentials-file' + CANONICAL_NAME = 'Ec2Config' + + CRED_FILE_ENV = 'AWS_CREDENTIAL_FILE' + ACCESS_KEY = 'AWSAccessKeyId' + SECRET_KEY = 'AWSSecretKey' + + def __init__(self, environ=None, parser=None): + if environ is None: + environ = os.environ + if parser is None: + parser = parse_key_val_file + self._environ = environ + self._parser = parser + + def load(self): + """ + Search for a credential file used by original EC2 CLI tools. + """ + if 'AWS_CREDENTIAL_FILE' in self._environ: + full_path = os.path.expanduser( + self._environ['AWS_CREDENTIAL_FILE'] + ) + creds = self._parser(full_path) + if self.ACCESS_KEY in creds: + logger.info('Found credentials in AWS_CREDENTIAL_FILE.') + access_key = creds[self.ACCESS_KEY] + secret_key = creds[self.SECRET_KEY] + # EC2 creds file doesn't support session tokens. + return Credentials(access_key, secret_key, method=self.METHOD) + else: + return None + + +class SharedCredentialProvider(CredentialProvider): + METHOD = 'shared-credentials-file' + CANONICAL_NAME = 'SharedCredentials' + + ACCESS_KEY = 'aws_access_key_id' + SECRET_KEY = 'aws_secret_access_key' + # Same deal as the EnvProvider above. Botocore originally supported + # aws_security_token, but the SDKs are standardizing on aws_session_token + # so we support both. + TOKENS = ['aws_security_token', 'aws_session_token'] + ACCOUNT_ID = 'aws_account_id' + + def __init__(self, creds_filename, profile_name=None, ini_parser=None): + self._creds_filename = creds_filename + if profile_name is None: + profile_name = 'default' + self._profile_name = profile_name + if ini_parser is None: + ini_parser = botocore.configloader.raw_config_parse + self._ini_parser = ini_parser + + def load(self): + try: + available_creds = self._ini_parser(self._creds_filename) + except ConfigNotFound: + return None + if self._profile_name in available_creds: + config = available_creds[self._profile_name] + if self.ACCESS_KEY in config: + logger.info( + "Found credentials in shared credentials file: %s", + self._creds_filename, + ) + access_key, secret_key = self._extract_creds_from_mapping( + config, self.ACCESS_KEY, self.SECRET_KEY + ) + token = self._get_session_token(config) + account_id = self._get_account_id(config) + register_feature_id('CREDENTIALS_PROFILE') + return Credentials( + access_key, + secret_key, + token, + method=self.METHOD, + account_id=account_id, + ) + + def _get_session_token(self, config): + for token_envvar in self.TOKENS: + if token_envvar in config: + return config[token_envvar] + + def _get_account_id(self, config): + return config.get(self.ACCOUNT_ID) + + +class ConfigProvider(CredentialProvider): + """INI based config provider with profile sections.""" + + METHOD = 'config-file' + CANONICAL_NAME = 'SharedConfig' + + ACCESS_KEY = 'aws_access_key_id' + SECRET_KEY = 'aws_secret_access_key' + # Same deal as the EnvProvider above. Botocore originally supported + # aws_security_token, but the SDKs are standardizing on aws_session_token + # so we support both. + TOKENS = ['aws_security_token', 'aws_session_token'] + ACCOUNT_ID = 'aws_account_id' + + def __init__(self, config_filename, profile_name, config_parser=None): + """ + + :param config_filename: The session configuration scoped to the current + profile. This is available via ``session.config``. + :param profile_name: The name of the current profile. + :param config_parser: A config parser callable. + + """ + self._config_filename = config_filename + self._profile_name = profile_name + if config_parser is None: + config_parser = botocore.configloader.load_config + self._config_parser = config_parser + + def load(self): + """ + If there is are credentials in the configuration associated with + the session, use those. + """ + try: + full_config = self._config_parser(self._config_filename) + except ConfigNotFound: + return None + if self._profile_name in full_config['profiles']: + profile_config = full_config['profiles'][self._profile_name] + if self.ACCESS_KEY in profile_config: + logger.info( + "Credentials found in config file: %s", + self._config_filename, + ) + access_key, secret_key = self._extract_creds_from_mapping( + profile_config, self.ACCESS_KEY, self.SECRET_KEY + ) + token = self._get_session_token(profile_config) + account_id = self._get_account_id(profile_config) + register_feature_id('CREDENTIALS_PROFILE') + return Credentials( + access_key, + secret_key, + token, + method=self.METHOD, + account_id=account_id, + ) + else: + return None + + def _get_session_token(self, profile_config): + for token_name in self.TOKENS: + if token_name in profile_config: + return profile_config[token_name] + + def _get_account_id(self, config): + return config.get(self.ACCOUNT_ID) + + +class BotoProvider(CredentialProvider): + METHOD = 'boto-config' + CANONICAL_NAME = 'Boto2Config' + + BOTO_CONFIG_ENV = 'BOTO_CONFIG' + DEFAULT_CONFIG_FILENAMES = ['/etc/boto.cfg', '~/.boto'] + ACCESS_KEY = 'aws_access_key_id' + SECRET_KEY = 'aws_secret_access_key' + + def __init__(self, environ=None, ini_parser=None): + if environ is None: + environ = os.environ + if ini_parser is None: + ini_parser = botocore.configloader.raw_config_parse + self._environ = environ + self._ini_parser = ini_parser + + def load(self): + """ + Look for credentials in boto config file. + """ + if self.BOTO_CONFIG_ENV in self._environ: + potential_locations = [self._environ[self.BOTO_CONFIG_ENV]] + else: + potential_locations = self.DEFAULT_CONFIG_FILENAMES + for filename in potential_locations: + try: + config = self._ini_parser(filename) + except ConfigNotFound: + # Move on to the next potential config file name. + continue + if 'Credentials' in config: + credentials = config['Credentials'] + if self.ACCESS_KEY in credentials: + logger.info( + "Found credentials in boto config file: %s", filename + ) + access_key, secret_key = self._extract_creds_from_mapping( + credentials, self.ACCESS_KEY, self.SECRET_KEY + ) + register_feature_id('CREDENTIALS_BOTO2_CONFIG_FILE') + return Credentials( + access_key, secret_key, method=self.METHOD + ) + + +class AssumeRoleProvider(CredentialProvider): + METHOD = 'assume-role' + # The AssumeRole provider is logically part of the SharedConfig and + # SharedCredentials providers. Since the purpose of the canonical name + # is to provide cross-sdk compatibility, calling code will need to be + # aware that either of those providers should be tied to the AssumeRole + # provider as much as possible. + CANONICAL_NAME = None + ROLE_CONFIG_VAR = 'role_arn' + WEB_IDENTITY_TOKE_FILE_VAR = 'web_identity_token_file' + # Credentials are considered expired (and will be refreshed) once the total + # remaining time left until the credentials expires is less than the + # EXPIRY_WINDOW. + EXPIRY_WINDOW_SECONDS = 60 * 15 + NAMED_PROVIDER_FEATURE_MAP = { + 'Ec2InstanceMetadata': 'CREDENTIALS_IMDS', + 'Environment': 'CREDENTIALS_ENV_VARS', + 'EcsContainer': 'CREDENTIALS_HTTP', + } + + def __init__( + self, + load_config, + client_creator, + cache, + profile_name, + prompter=getpass.getpass, + credential_sourcer=None, + profile_provider_builder=None, + ): + """ + :type load_config: callable + :param load_config: A function that accepts no arguments, and + when called, will return the full configuration dictionary + for the session (``session.full_config``). + + :type client_creator: callable + :param client_creator: A factory function that will create + a client when called. Has the same interface as + ``botocore.session.Session.create_client``. + + :type cache: dict + :param cache: An object that supports ``__getitem__``, + ``__setitem__``, and ``__contains__``. An example + of this is the ``JSONFileCache`` class in the CLI. + + :type profile_name: str + :param profile_name: The name of the profile. + + :type prompter: callable + :param prompter: A callable that returns input provided + by the user (i.e raw_input, getpass.getpass, etc.). + + :type credential_sourcer: CanonicalNameCredentialSourcer + :param credential_sourcer: A credential provider that takes a + configuration, which is used to provide the source credentials + for the STS call. + """ + #: The cache used to first check for assumed credentials. + #: This is checked before making the AssumeRole API + #: calls and can be useful if you have short lived + #: scripts and you'd like to avoid calling AssumeRole + #: until the credentials are expired. + self.cache = cache + self._load_config = load_config + # client_creator is a callable that creates function. + # It's basically session.create_client + self._client_creator = client_creator + self._profile_name = profile_name + self._prompter = prompter + # The _loaded_config attribute will be populated from the + # load_config() function once the configuration is actually + # loaded. The reason we go through all this instead of just + # requiring that the loaded_config be passed to us is to that + # we can defer configuration loaded until we actually try + # to load credentials (as opposed to when the object is + # instantiated). + self._loaded_config = {} + self._credential_sourcer = credential_sourcer + self._profile_provider_builder = profile_provider_builder + self._visited_profiles = [self._profile_name] + self._feature_ids = set() + + def load(self): + self._loaded_config = self._load_config() + profiles = self._loaded_config.get('profiles', {}) + profile = profiles.get(self._profile_name, {}) + if self._has_assume_role_config_vars(profile): + return self._load_creds_via_assume_role(self._profile_name) + + def _has_assume_role_config_vars(self, profile): + return ( + self.ROLE_CONFIG_VAR in profile + and + # We need to ensure this provider doesn't look at a profile when + # the profile has configuration for web identity. Simply relying on + # the order in the credential chain is insufficient as it doesn't + # prevent the case when we're doing an assume role chain. + self.WEB_IDENTITY_TOKE_FILE_VAR not in profile + ) + + def _load_creds_via_assume_role(self, profile_name): + role_config = self._get_role_config(profile_name) + source_credentials = self._resolve_source_credentials( + role_config, profile_name + ) + + extra_args = {} + role_session_name = role_config.get('role_session_name') + if role_session_name is not None: + extra_args['RoleSessionName'] = role_session_name + + external_id = role_config.get('external_id') + if external_id is not None: + extra_args['ExternalId'] = external_id + + mfa_serial = role_config.get('mfa_serial') + if mfa_serial is not None: + extra_args['SerialNumber'] = mfa_serial + + duration_seconds = role_config.get('duration_seconds') + if duration_seconds is not None: + extra_args['DurationSeconds'] = duration_seconds + + fetcher = AssumeRoleCredentialFetcher( + client_creator=self._client_creator, + source_credentials=source_credentials, + role_arn=role_config['role_arn'], + extra_args=extra_args, + mfa_prompter=self._prompter, + cache=self.cache, + ) + fetcher.feature_ids = self._feature_ids.copy() + refresher = fetcher.fetch_credentials + if mfa_serial is not None: + refresher = create_mfa_serial_refresher(refresher) + + self._feature_ids.add('CREDENTIALS_STS_ASSUME_ROLE') + register_feature_ids(self._feature_ids) + # The initial credentials are empty and the expiration time is set + # to now so that we can delay the call to assume role until it is + # strictly needed. + return DeferredRefreshableCredentials( + method=self.METHOD, + refresh_using=refresher, + time_fetcher=_local_now, + ) + + def _get_role_config(self, profile_name): + """Retrieves and validates the role configuration for the profile.""" + profiles = self._loaded_config.get('profiles', {}) + + profile = profiles[profile_name] + source_profile = profile.get('source_profile') + role_arn = profile['role_arn'] + credential_source = profile.get('credential_source') + mfa_serial = profile.get('mfa_serial') + external_id = profile.get('external_id') + role_session_name = profile.get('role_session_name') + duration_seconds = profile.get('duration_seconds') + + role_config = { + 'role_arn': role_arn, + 'external_id': external_id, + 'mfa_serial': mfa_serial, + 'role_session_name': role_session_name, + 'source_profile': source_profile, + 'credential_source': credential_source, + } + + if duration_seconds is not None: + try: + role_config['duration_seconds'] = int(duration_seconds) + except ValueError: + pass + + # Either the credential source or the source profile must be + # specified, but not both. + if credential_source is not None and source_profile is not None: + raise InvalidConfigError( + error_msg=( + f'The profile "{profile_name}" contains both ' + 'source_profile and credential_source.' + ) + ) + elif credential_source is None and source_profile is None: + raise PartialCredentialsError( + provider=self.METHOD, + cred_var='source_profile or credential_source', + ) + elif credential_source is not None: + self._validate_credential_source(profile_name, credential_source) + else: + self._validate_source_profile(profile_name, source_profile) + + return role_config + + def _validate_credential_source(self, parent_profile, credential_source): + if self._credential_sourcer is None: + raise InvalidConfigError( + error_msg=( + f"The credential_source \"{credential_source}\" is specified " + f"in profile \"{parent_profile}\", " + f"but no source provider was configured." + ) + ) + if not self._credential_sourcer.is_supported(credential_source): + raise InvalidConfigError( + error_msg=( + f"The credential source \"{credential_source}\" referenced " + f"in profile \"{parent_profile}\" is not valid." + ) + ) + + def _source_profile_has_credentials(self, profile): + return any( + [ + self._has_static_credentials(profile), + self._has_assume_role_config_vars(profile), + ] + ) + + def _validate_source_profile( + self, parent_profile_name, source_profile_name + ): + profiles = self._loaded_config.get('profiles', {}) + if source_profile_name not in profiles: + raise InvalidConfigError( + error_msg=( + f"The source_profile \"{source_profile_name}\" referenced in " + f"the profile \"{parent_profile_name}\" does not exist." + ) + ) + + source_profile = profiles[source_profile_name] + + # Make sure we aren't going into an infinite loop. If we haven't + # visited the profile yet, we're good. + if source_profile_name not in self._visited_profiles: + return + + # If we have visited the profile and the profile isn't simply + # referencing itself, that's an infinite loop. + if source_profile_name != parent_profile_name: + raise InfiniteLoopConfigError( + source_profile=source_profile_name, + visited_profiles=self._visited_profiles, + ) + + # A profile is allowed to reference itself so that it can source + # static credentials and have configuration all in the same + # profile. This will only ever work for the top level assume + # role because the static credentials will otherwise take + # precedence. + if not self._has_static_credentials(source_profile): + raise InfiniteLoopConfigError( + source_profile=source_profile_name, + visited_profiles=self._visited_profiles, + ) + + def _has_static_credentials(self, profile): + static_keys = ['aws_secret_access_key', 'aws_access_key_id'] + return any(static_key in profile for static_key in static_keys) + + def _resolve_source_credentials(self, role_config, profile_name): + credential_source = role_config.get('credential_source') + if credential_source is not None: + self._feature_ids.add('CREDENTIALS_PROFILE_NAMED_PROVIDER') + return self._resolve_credentials_from_source( + credential_source, profile_name + ) + + source_profile = role_config['source_profile'] + self._visited_profiles.append(source_profile) + self._feature_ids.add('CREDENTIALS_PROFILE_SOURCE_PROFILE') + return self._resolve_credentials_from_profile(source_profile) + + def _resolve_credentials_from_profile(self, profile_name): + profiles = self._loaded_config.get('profiles', {}) + profile = profiles[profile_name] + self._feature_ids.add('CREDENTIALS_PROFILE') + if ( + self._has_static_credentials(profile) + and not self._profile_provider_builder + ): + # This is only here for backwards compatibility. If this provider + # isn't given a profile provider builder we still want to be able + # to handle the basic static credential case as we would before the + # profile provider builder parameter was added. + return self._resolve_static_credentials_from_profile(profile) + elif self._has_static_credentials( + profile + ) or not self._has_assume_role_config_vars(profile): + profile_providers = self._profile_provider_builder.providers( + profile_name=profile_name, + disable_env_vars=True, + ) + profile_chain = CredentialResolver(profile_providers) + credentials = profile_chain.load_credentials() + if credentials is None: + error_message = ( + 'The source profile "%s" must have credentials.' + ) + raise InvalidConfigError( + error_msg=error_message % profile_name, + ) + return credentials + + return self._load_creds_via_assume_role(profile_name) + + def _resolve_static_credentials_from_profile(self, profile): + try: + return Credentials( + access_key=profile['aws_access_key_id'], + secret_key=profile['aws_secret_access_key'], + token=profile.get('aws_session_token'), + ) + except KeyError as e: + raise PartialCredentialsError( + provider=self.METHOD, cred_var=str(e) + ) + + def _resolve_credentials_from_source( + self, credential_source, profile_name + ): + credentials = self._credential_sourcer.source_credentials( + credential_source + ) + if credentials is None: + raise CredentialRetrievalError( + provider=credential_source, + error_msg=( + 'No credentials found in credential_source referenced ' + f'in profile {profile_name}' + ), + ) + named_provider_feature_id = self.NAMED_PROVIDER_FEATURE_MAP.get( + credential_source + ) + if named_provider_feature_id: + self._feature_ids.add(named_provider_feature_id) + return credentials + + +class AssumeRoleWithWebIdentityProvider(CredentialProvider): + METHOD = 'assume-role-with-web-identity' + CANONICAL_NAME = None + _CONFIG_TO_ENV_VAR = { + 'web_identity_token_file': 'AWS_WEB_IDENTITY_TOKEN_FILE', + 'role_session_name': 'AWS_ROLE_SESSION_NAME', + 'role_arn': 'AWS_ROLE_ARN', + } + + def __init__( + self, + load_config, + client_creator, + profile_name, + cache=None, + disable_env_vars=False, + token_loader_cls=None, + ): + self.cache = cache + self._load_config = load_config + self._client_creator = client_creator + self._profile_name = profile_name + self._profile_config = None + self._disable_env_vars = disable_env_vars + if token_loader_cls is None: + token_loader_cls = FileWebIdentityTokenLoader + self._token_loader_cls = token_loader_cls + self._feature_ids = set() + + def load(self): + return self._assume_role_with_web_identity() + + def _get_profile_config(self, key): + if self._profile_config is None: + loaded_config = self._load_config() + profiles = loaded_config.get('profiles', {}) + self._profile_config = profiles.get(self._profile_name, {}) + return self._profile_config.get(key) + + def _get_env_config(self, key): + if self._disable_env_vars: + return None + env_key = self._CONFIG_TO_ENV_VAR.get(key) + if env_key and env_key in os.environ: + return os.environ[env_key] + return None + + def _get_config(self, key): + env_value = self._get_env_config(key) + if env_value is not None: + self._feature_ids.add('CREDENTIALS_ENV_VARS_STS_WEB_ID_TOKEN') + return env_value + + config_value = self._get_profile_config(key) + if config_value is not None: + self._feature_ids.add('CREDENTIALS_PROFILE_STS_WEB_ID_TOKEN') + return config_value + + return None + + def _assume_role_with_web_identity(self): + token_path = self._get_config('web_identity_token_file') + if not token_path: + return None + token_loader = self._token_loader_cls(token_path) + + role_arn = self._get_config('role_arn') + if not role_arn: + error_msg = ( + 'The provided profile or the current environment is ' + 'configured to assume role with web identity but has no ' + 'role ARN configured. Ensure that the profile has the role_arn' + 'configuration set or the AWS_ROLE_ARN env var is set.' + ) + raise InvalidConfigError(error_msg=error_msg) + + extra_args = {} + role_session_name = self._get_config('role_session_name') + if role_session_name is not None: + extra_args['RoleSessionName'] = role_session_name + + fetcher = AssumeRoleWithWebIdentityCredentialFetcher( + client_creator=self._client_creator, + web_identity_token_loader=token_loader, + role_arn=role_arn, + extra_args=extra_args, + cache=self.cache, + ) + fetcher.feature_ids = self._feature_ids.copy() + + self._feature_ids.add('CREDENTIALS_STS_ASSUME_ROLE_WEB_ID') + register_feature_ids(self._feature_ids) + # The initial credentials are empty and the expiration time is set + # to now so that we can delay the call to assume role until it is + # strictly needed. + return DeferredRefreshableCredentials( + method=self.METHOD, + refresh_using=fetcher.fetch_credentials, + ) + + +class CanonicalNameCredentialSourcer: + def __init__(self, providers): + self._providers = providers + + def is_supported(self, source_name): + """Validates a given source name. + + :type source_name: str + :param source_name: The value of credential_source in the config + file. This is the canonical name of the credential provider. + + :rtype: bool + :returns: True if the credential provider is supported, + False otherwise. + """ + return source_name in [p.CANONICAL_NAME for p in self._providers] + + def source_credentials(self, source_name): + """Loads source credentials based on the provided configuration. + + :type source_name: str + :param source_name: The value of credential_source in the config + file. This is the canonical name of the credential provider. + + :rtype: Credentials + """ + source = self._get_provider(source_name) + if isinstance(source, CredentialResolver): + return source.load_credentials() + return source.load() + + def _get_provider(self, canonical_name): + """Return a credential provider by its canonical name. + + :type canonical_name: str + :param canonical_name: The canonical name of the provider. + + :raises UnknownCredentialError: Raised if no + credential provider by the provided name + is found. + """ + provider = self._get_provider_by_canonical_name(canonical_name) + + # The AssumeRole provider should really be part of the SharedConfig + # provider rather than being its own thing, but it is not. It is + # effectively part of both the SharedConfig provider and the + # SharedCredentials provider now due to the way it behaves. + # Therefore if we want either of those providers we should return + # the AssumeRole provider with it. + if canonical_name.lower() in ['sharedconfig', 'sharedcredentials']: + assume_role_provider = self._get_provider_by_method('assume-role') + if assume_role_provider is not None: + # The SharedConfig or SharedCredentials provider may not be + # present if it was removed for some reason, but the + # AssumeRole provider could still be present. In that case, + # return the assume role provider by itself. + if provider is None: + return assume_role_provider + + # If both are present, return them both as a + # CredentialResolver so that calling code can treat them as + # a single entity. + return CredentialResolver([assume_role_provider, provider]) + + if provider is None: + raise UnknownCredentialError(name=canonical_name) + + return provider + + def _get_provider_by_canonical_name(self, canonical_name): + """Return a credential provider by its canonical name. + + This function is strict, it does not attempt to address + compatibility issues. + """ + for provider in self._providers: + name = provider.CANONICAL_NAME + # Canonical names are case-insensitive + if name and name.lower() == canonical_name.lower(): + return provider + + def _get_provider_by_method(self, method): + """Return a credential provider by its METHOD name.""" + for provider in self._providers: + if provider.METHOD == method: + return provider + + +class ContainerProvider(CredentialProvider): + METHOD = 'container-role' + CANONICAL_NAME = 'EcsContainer' + ENV_VAR = 'AWS_CONTAINER_CREDENTIALS_RELATIVE_URI' + ENV_VAR_FULL = 'AWS_CONTAINER_CREDENTIALS_FULL_URI' + ENV_VAR_AUTH_TOKEN = 'AWS_CONTAINER_AUTHORIZATION_TOKEN' + ENV_VAR_AUTH_TOKEN_FILE = 'AWS_CONTAINER_AUTHORIZATION_TOKEN_FILE' + + def __init__(self, environ=None, fetcher=None): + if environ is None: + environ = os.environ + if fetcher is None: + fetcher = ContainerMetadataFetcher() + self._environ = environ + self._fetcher = fetcher + + def load(self): + # This cred provider is only triggered if the self.ENV_VAR is set, + # which only happens if you opt into this feature. + if self.ENV_VAR in self._environ or self.ENV_VAR_FULL in self._environ: + return self._retrieve_or_fail() + + def _retrieve_or_fail(self): + if self._provided_relative_uri(): + full_uri = self._fetcher.full_url(self._environ[self.ENV_VAR]) + else: + full_uri = self._environ[self.ENV_VAR_FULL] + fetcher = self._create_fetcher(full_uri) + creds = fetcher() + return RefreshableCredentials( + access_key=creds['access_key'], + secret_key=creds['secret_key'], + token=creds['token'], + method=self.METHOD, + expiry_time=_parse_if_needed(creds['expiry_time']), + refresh_using=fetcher, + account_id=creds.get('account_id'), + ) + + def _build_headers(self): + auth_token = None + if self.ENV_VAR_AUTH_TOKEN_FILE in self._environ: + auth_token_file_path = self._environ[self.ENV_VAR_AUTH_TOKEN_FILE] + with open(auth_token_file_path) as token_file: + auth_token = token_file.read() + elif self.ENV_VAR_AUTH_TOKEN in self._environ: + auth_token = self._environ[self.ENV_VAR_AUTH_TOKEN] + if auth_token is not None: + self._validate_auth_token(auth_token) + return {'Authorization': auth_token} + + def _validate_auth_token(self, auth_token): + if "\r" in auth_token or "\n" in auth_token: + raise ValueError("Auth token value is not a legal header value") + + def _create_fetcher(self, full_uri, *args, **kwargs): + def fetch_creds(): + try: + headers = self._build_headers() + response = self._fetcher.retrieve_full_uri( + full_uri, headers=headers + ) + register_feature_id('CREDENTIALS_HTTP') + except MetadataRetrievalError as e: + logger.debug( + "Error retrieving container metadata: %s", e, exc_info=True + ) + raise CredentialRetrievalError( + provider=self.METHOD, error_msg=str(e) + ) + return { + 'access_key': response['AccessKeyId'], + 'secret_key': response['SecretAccessKey'], + 'token': response['Token'], + 'expiry_time': response['Expiration'], + 'account_id': response.get('AccountId'), + } + + return fetch_creds + + def _provided_relative_uri(self): + return self.ENV_VAR in self._environ + + +class CredentialResolver: + def __init__(self, providers): + """ + + :param providers: A list of ``CredentialProvider`` instances. + + """ + self.providers = providers + + def insert_before(self, name, credential_provider): + """ + Inserts a new instance of ``CredentialProvider`` into the chain that + will be tried before an existing one. + + :param name: The short name of the credentials you'd like to insert the + new credentials before. (ex. ``env`` or ``config``). Existing names + & ordering can be discovered via ``self.available_methods``. + :type name: string + + :param cred_instance: An instance of the new ``Credentials`` object + you'd like to add to the chain. + :type cred_instance: A subclass of ``Credentials`` + """ + try: + offset = [p.METHOD for p in self.providers].index(name) + except ValueError: + raise UnknownCredentialError(name=name) + self.providers.insert(offset, credential_provider) + + def insert_after(self, name, credential_provider): + """ + Inserts a new type of ``Credentials`` instance into the chain that will + be tried after an existing one. + + :param name: The short name of the credentials you'd like to insert the + new credentials after. (ex. ``env`` or ``config``). Existing names + & ordering can be discovered via ``self.available_methods``. + :type name: string + + :param cred_instance: An instance of the new ``Credentials`` object + you'd like to add to the chain. + :type cred_instance: A subclass of ``Credentials`` + """ + offset = self._get_provider_offset(name) + self.providers.insert(offset + 1, credential_provider) + + def remove(self, name): + """ + Removes a given ``Credentials`` instance from the chain. + + :param name: The short name of the credentials instance to remove. + :type name: string + """ + available_methods = [p.METHOD for p in self.providers] + if name not in available_methods: + # It's not present. Fail silently. + return + + offset = available_methods.index(name) + self.providers.pop(offset) + + def get_provider(self, name): + """Return a credential provider by name. + + :type name: str + :param name: The name of the provider. + + :raises UnknownCredentialError: Raised if no + credential provider by the provided name + is found. + """ + return self.providers[self._get_provider_offset(name)] + + def _get_provider_offset(self, name): + try: + return [p.METHOD for p in self.providers].index(name) + except ValueError: + raise UnknownCredentialError(name=name) + + def load_credentials(self): + """ + Goes through the credentials chain, returning the first ``Credentials`` + that could be loaded. + """ + # First provider to return a non-None response wins. + for provider in self.providers: + logger.debug("Looking for credentials via: %s", provider.METHOD) + creds = provider.load() + if creds is not None: + return creds + + # If we got here, no credentials could be found. + # This feels like it should be an exception, but historically, ``None`` + # is returned. + # + # +1 + # -js + return None + + +class SSOCredentialFetcher(CachedCredentialFetcher): + _UTC_DATE_FORMAT = '%Y-%m-%dT%H:%M:%SZ' + + def __init__( + self, + start_url, + sso_region, + role_name, + account_id, + client_creator, + token_loader=None, + cache=None, + expiry_window_seconds=None, + token_provider=None, + sso_session_name=None, + time_fetcher=_local_now, + ): + self._client_creator = client_creator + self._sso_region = sso_region + self._role_name = role_name + self._account_id = account_id + self._start_url = start_url + self._token_loader = token_loader + self._token_provider = token_provider + self._sso_session_name = sso_session_name + self._time_fetcher = time_fetcher + super().__init__(cache, expiry_window_seconds) + + def _create_cache_key(self): + """Create a predictable cache key for the current configuration. + + The cache key is intended to be compatible with file names. + """ + args = { + 'roleName': self._role_name, + 'accountId': self._account_id, + } + if self._sso_session_name: + args['sessionName'] = self._sso_session_name + else: + args['startUrl'] = self._start_url + # NOTE: It would be good to hoist this cache key construction logic + # into the CachedCredentialFetcher class as we should be consistent. + # Unfortunately, the current assume role fetchers that sub class don't + # pass separators resulting in non-minified JSON. In the long term, + # all fetchers should use the below caching scheme. + args = json.dumps(args, sort_keys=True, separators=(',', ':')) + argument_hash = sha1(args.encode('utf-8')).hexdigest() + return self._make_file_safe(argument_hash) + + def _parse_timestamp(self, timestamp_ms): + # fromtimestamp expects seconds so: milliseconds / 1000 = seconds + timestamp_seconds = timestamp_ms / 1000.0 + timestamp = datetime.datetime.fromtimestamp(timestamp_seconds, tzutc()) + return timestamp.strftime(self._UTC_DATE_FORMAT) + + def _get_credentials(self): + """Get credentials by calling SSO get role credentials.""" + config = Config( + signature_version=UNSIGNED, + region_name=self._sso_region, + ) + client = self._client_creator('sso', config=config) + if self._token_provider: + initial_token_data = self._token_provider.load_token() + token = initial_token_data.get_frozen_token().token + else: + token_dict = self._token_loader(self._start_url) + token = token_dict['accessToken'] + + # raise an UnauthorizedSSOTokenError if the loaded legacy token + # is expired to save a call to GetRoleCredentials with an + # expired token. + expiration = dateutil.parser.parse(token_dict['expiresAt']) + remaining = total_seconds(expiration - self._time_fetcher()) + if remaining <= 0: + raise UnauthorizedSSOTokenError() + + kwargs = { + 'roleName': self._role_name, + 'accountId': self._account_id, + 'accessToken': token, + } + try: + register_feature_ids(self.feature_ids) + response = client.get_role_credentials(**kwargs) + except client.exceptions.UnauthorizedException: + raise UnauthorizedSSOTokenError() + credentials = response['roleCredentials'] + + credentials = { + 'ProviderType': 'sso', + 'Credentials': { + 'AccessKeyId': credentials['accessKeyId'], + 'SecretAccessKey': credentials['secretAccessKey'], + 'SessionToken': credentials['sessionToken'], + 'Expiration': self._parse_timestamp(credentials['expiration']), + 'AccountId': self._account_id, + }, + } + return credentials + + +class SSOProvider(CredentialProvider): + METHOD = 'sso' + + _SSO_TOKEN_CACHE_DIR = os.path.expanduser( + os.path.join('~', '.aws', 'sso', 'cache') + ) + _PROFILE_REQUIRED_CONFIG_VARS = ( + 'sso_role_name', + 'sso_account_id', + ) + _SSO_REQUIRED_CONFIG_VARS = ( + 'sso_start_url', + 'sso_region', + ) + _ALL_REQUIRED_CONFIG_VARS = ( + _PROFILE_REQUIRED_CONFIG_VARS + _SSO_REQUIRED_CONFIG_VARS + ) + + def __init__( + self, + load_config, + client_creator, + profile_name, + cache=None, + token_cache=None, + token_provider=None, + ): + if token_cache is None: + token_cache = JSONFileCache(self._SSO_TOKEN_CACHE_DIR) + self._token_cache = token_cache + self._token_provider = token_provider + if cache is None: + cache = {} + self.cache = cache + self._load_config = load_config + self._client_creator = client_creator + self._profile_name = profile_name + self._feature_ids = set() + + def _load_sso_config(self): + loaded_config = self._load_config() + profiles = loaded_config.get('profiles', {}) + profile_name = self._profile_name + profile_config = profiles.get(self._profile_name, {}) + sso_sessions = loaded_config.get('sso_sessions', {}) + + # Role name & Account ID indicate the cred provider should be used + if all( + c not in profile_config for c in self._PROFILE_REQUIRED_CONFIG_VARS + ): + return None + + resolved_config, extra_reqs = self._resolve_sso_session_reference( + profile_config, sso_sessions + ) + + config = {} + missing_config_vars = [] + all_required_configs = self._ALL_REQUIRED_CONFIG_VARS + extra_reqs + for config_var in all_required_configs: + if config_var in resolved_config: + config[config_var] = resolved_config[config_var] + else: + missing_config_vars.append(config_var) + + if missing_config_vars: + missing = ', '.join(missing_config_vars) + raise InvalidConfigError( + error_msg=( + f'The profile "{profile_name}" is configured to use SSO ' + f'but is missing required configuration: {missing}' + ) + ) + return config + + def _resolve_sso_session_reference(self, profile_config, sso_sessions): + sso_session_name = profile_config.get('sso_session') + if sso_session_name is None: + # No reference to resolve, proceed with legacy flow + return profile_config, () + + if sso_session_name not in sso_sessions: + error_msg = f'The specified sso-session does not exist: "{sso_session_name}"' + raise InvalidConfigError(error_msg=error_msg) + + config = profile_config.copy() + session = sso_sessions[sso_session_name] + for config_var, val in session.items(): + # Validate any keys referenced in both profile and sso_session match + if config.get(config_var, val) != val: + error_msg = ( + f"The value for {config_var} is inconsistent between " + f"profile ({config[config_var]}) and sso-session ({val})." + ) + raise InvalidConfigError(error_msg=error_msg) + config[config_var] = val + return config, ('sso_session',) + + def load(self): + sso_config = self._load_sso_config() + if not sso_config: + return None + + fetcher_kwargs = { + 'start_url': sso_config['sso_start_url'], + 'sso_region': sso_config['sso_region'], + 'role_name': sso_config['sso_role_name'], + 'account_id': sso_config['sso_account_id'], + 'client_creator': self._client_creator, + 'token_loader': SSOTokenLoader(cache=self._token_cache), + 'cache': self.cache, + } + sso_session_in_config = 'sso_session' in sso_config + if sso_session_in_config: + fetcher_kwargs['sso_session_name'] = sso_config['sso_session'] + fetcher_kwargs['token_provider'] = self._token_provider + self._feature_ids.add('CREDENTIALS_PROFILE_SSO') + else: + self._feature_ids.add('CREDENTIALS_PROFILE_SSO_LEGACY') + + sso_fetcher = SSOCredentialFetcher(**fetcher_kwargs) + sso_fetcher.feature_ids = self._feature_ids.copy() + + if sso_session_in_config: + self._feature_ids.add('CREDENTIALS_SSO') + else: + self._feature_ids.add('CREDENTIALS_SSO_LEGACY') + + register_feature_ids(self._feature_ids) + return DeferredRefreshableCredentials( + method=self.METHOD, + refresh_using=sso_fetcher.fetch_credentials, + ) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/discovery.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/discovery.py new file mode 100644 index 0000000000000000000000000000000000000000..3d16e97dd1f66e1db5c871adf990310676210f86 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/discovery.py @@ -0,0 +1,282 @@ +# Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import logging +import time +import weakref + +from botocore import xform_name +from botocore.exceptions import BotoCoreError, ConnectionError, HTTPClientError +from botocore.model import OperationNotFoundError +from botocore.utils import CachedProperty + +logger = logging.getLogger(__name__) + + +class EndpointDiscoveryException(BotoCoreError): + pass + + +class EndpointDiscoveryRequired(EndpointDiscoveryException): + """Endpoint Discovery is disabled but is required for this operation.""" + + fmt = 'Endpoint Discovery is not enabled but this operation requires it.' + + +class EndpointDiscoveryRefreshFailed(EndpointDiscoveryException): + """Endpoint Discovery failed to the refresh the known endpoints.""" + + fmt = 'Endpoint Discovery failed to refresh the required endpoints.' + + +def block_endpoint_discovery_required_operations(model, **kwargs): + endpoint_discovery = model.endpoint_discovery + if endpoint_discovery and endpoint_discovery.get('required'): + raise EndpointDiscoveryRequired() + + +class EndpointDiscoveryModel: + def __init__(self, service_model): + self._service_model = service_model + + @CachedProperty + def discovery_operation_name(self): + discovery_operation = self._service_model.endpoint_discovery_operation + return xform_name(discovery_operation.name) + + @CachedProperty + def discovery_operation_keys(self): + discovery_operation = self._service_model.endpoint_discovery_operation + keys = [] + if discovery_operation.input_shape: + keys = list(discovery_operation.input_shape.members.keys()) + return keys + + def discovery_required_for(self, operation_name): + try: + operation_model = self._service_model.operation_model( + operation_name + ) + return operation_model.endpoint_discovery.get('required', False) + except OperationNotFoundError: + return False + + def discovery_operation_kwargs(self, **kwargs): + input_keys = self.discovery_operation_keys + # Operation and Identifiers are only sent if there are Identifiers + if not kwargs.get('Identifiers'): + kwargs.pop('Operation', None) + kwargs.pop('Identifiers', None) + return {k: v for k, v in kwargs.items() if k in input_keys} + + def gather_identifiers(self, operation, params): + return self._gather_ids(operation.input_shape, params) + + def _gather_ids(self, shape, params, ids=None): + # Traverse the input shape and corresponding parameters, gathering + # any input fields labeled as an endpoint discovery id + if ids is None: + ids = {} + for member_name, member_shape in shape.members.items(): + if member_shape.metadata.get('endpointdiscoveryid'): + ids[member_name] = params[member_name] + elif ( + member_shape.type_name == 'structure' and member_name in params + ): + self._gather_ids(member_shape, params[member_name], ids) + return ids + + +class EndpointDiscoveryManager: + def __init__( + self, client, cache=None, current_time=None, always_discover=True + ): + if cache is None: + cache = {} + self._cache = cache + self._failed_attempts = {} + if current_time is None: + current_time = time.time + self._time = current_time + self._always_discover = always_discover + + # This needs to be a weak ref in order to prevent memory leaks on + # python 2.6 + self._client = weakref.proxy(client) + self._model = EndpointDiscoveryModel(client.meta.service_model) + + def _parse_endpoints(self, response): + endpoints = response['Endpoints'] + current_time = self._time() + for endpoint in endpoints: + cache_time = endpoint.get('CachePeriodInMinutes') + endpoint['Expiration'] = current_time + cache_time * 60 + return endpoints + + def _cache_item(self, value): + if isinstance(value, dict): + return tuple(sorted(value.items())) + else: + return value + + def _create_cache_key(self, **kwargs): + kwargs = self._model.discovery_operation_kwargs(**kwargs) + return tuple(self._cache_item(v) for k, v in sorted(kwargs.items())) + + def gather_identifiers(self, operation, params): + return self._model.gather_identifiers(operation, params) + + def delete_endpoints(self, **kwargs): + cache_key = self._create_cache_key(**kwargs) + if cache_key in self._cache: + del self._cache[cache_key] + + def _describe_endpoints(self, **kwargs): + # This is effectively a proxy to whatever name/kwargs the service + # supports for endpoint discovery. + kwargs = self._model.discovery_operation_kwargs(**kwargs) + operation_name = self._model.discovery_operation_name + discovery_operation = getattr(self._client, operation_name) + logger.debug('Discovering endpoints with kwargs: %s', kwargs) + return discovery_operation(**kwargs) + + def _get_current_endpoints(self, key): + if key not in self._cache: + return None + now = self._time() + return [e for e in self._cache[key] if now < e['Expiration']] + + def _refresh_current_endpoints(self, **kwargs): + cache_key = self._create_cache_key(**kwargs) + try: + response = self._describe_endpoints(**kwargs) + endpoints = self._parse_endpoints(response) + self._cache[cache_key] = endpoints + self._failed_attempts.pop(cache_key, None) + return endpoints + except (ConnectionError, HTTPClientError): + self._failed_attempts[cache_key] = self._time() + 60 + return None + + def _recently_failed(self, cache_key): + if cache_key in self._failed_attempts: + now = self._time() + if now < self._failed_attempts[cache_key]: + return True + del self._failed_attempts[cache_key] + return False + + def _select_endpoint(self, endpoints): + return endpoints[0]['Address'] + + def describe_endpoint(self, **kwargs): + operation = kwargs['Operation'] + discovery_required = self._model.discovery_required_for(operation) + + if not self._always_discover and not discovery_required: + # Discovery set to only run on required operations + logger.debug( + 'Optional discovery disabled. Skipping discovery for Operation: %s', + operation, + ) + return None + + # Get the endpoint for the provided operation and identifiers + cache_key = self._create_cache_key(**kwargs) + endpoints = self._get_current_endpoints(cache_key) + if endpoints: + return self._select_endpoint(endpoints) + # All known endpoints are stale + recently_failed = self._recently_failed(cache_key) + if not recently_failed: + # We haven't failed to discover recently, go ahead and refresh + endpoints = self._refresh_current_endpoints(**kwargs) + if endpoints: + return self._select_endpoint(endpoints) + # Discovery has failed recently, do our best to get an endpoint + logger.debug('Endpoint Discovery has failed for: %s', kwargs) + stale_entries = self._cache.get(cache_key, None) + if stale_entries: + # We have stale entries, use those while discovery is failing + return self._select_endpoint(stale_entries) + if discovery_required: + # It looks strange to be checking recently_failed again but, + # this informs us as to whether or not we tried to refresh earlier + if recently_failed: + # Discovery is required and we haven't already refreshed + endpoints = self._refresh_current_endpoints(**kwargs) + if endpoints: + return self._select_endpoint(endpoints) + # No endpoints even refresh, raise hard error + raise EndpointDiscoveryRefreshFailed() + # Discovery is optional, just use the default endpoint for now + return None + + +class EndpointDiscoveryHandler: + def __init__(self, manager): + self._manager = manager + + def register(self, events, service_id): + events.register( + f'before-parameter-build.{service_id}', self.gather_identifiers + ) + events.register_first( + f'request-created.{service_id}', self.discover_endpoint + ) + events.register(f'needs-retry.{service_id}', self.handle_retries) + + def gather_identifiers(self, params, model, context, **kwargs): + endpoint_discovery = model.endpoint_discovery + # Only continue if the operation supports endpoint discovery + if endpoint_discovery is None: + return + ids = self._manager.gather_identifiers(model, params) + context['discovery'] = {'identifiers': ids} + + def discover_endpoint(self, request, operation_name, **kwargs): + ids = request.context.get('discovery', {}).get('identifiers') + if ids is None: + return + endpoint = self._manager.describe_endpoint( + Operation=operation_name, Identifiers=ids + ) + if endpoint is None: + logger.debug('Failed to discover and inject endpoint') + return + if not endpoint.startswith('http'): + endpoint = 'https://' + endpoint + logger.debug('Injecting discovered endpoint: %s', endpoint) + request.url = endpoint + + def handle_retries(self, request_dict, response, operation, **kwargs): + if response is None: + return None + + _, response = response + status = response.get('ResponseMetadata', {}).get('HTTPStatusCode') + error_code = response.get('Error', {}).get('Code') + if status != 421 and error_code != 'InvalidEndpointException': + return None + + context = request_dict.get('context', {}) + ids = context.get('discovery', {}).get('identifiers') + if ids is None: + return None + + # Delete the cached endpoints, forcing a refresh on retry + # TODO: Improve eviction behavior to only evict the bad endpoint if + # there are multiple. This will almost certainly require a lock. + self._manager.delete_endpoints( + Operation=operation.name, Identifiers=ids + ) + return 0 diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/endpoint.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/endpoint.py new file mode 100644 index 0000000000000000000000000000000000000000..f393de78f19674a61b612a8ba4b02c7512c744cb --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/endpoint.py @@ -0,0 +1,449 @@ +# Copyright (c) 2012-2013 Mitch Garnaat http://garnaat.org/ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. + +import datetime +import logging +import os +import threading +import time +import uuid + +from botocore import parsers +from botocore.awsrequest import create_request_object +from botocore.compat import get_current_datetime +from botocore.exceptions import HTTPClientError +from botocore.history import get_global_history_recorder +from botocore.hooks import first_non_none_response +from botocore.httpchecksum import handle_checksum_body +from botocore.httpsession import URLLib3Session +from botocore.response import StreamingBody +from botocore.utils import ( + get_environ_proxies, + is_valid_endpoint_url, + is_valid_ipv6_endpoint_url, +) + +logger = logging.getLogger(__name__) +history_recorder = get_global_history_recorder() +DEFAULT_TIMEOUT = 60 +MAX_POOL_CONNECTIONS = 10 + + +def convert_to_response_dict(http_response, operation_model): + """Convert an HTTP response object to a request dict. + + This converts the HTTP response object to a dictionary. + + :type http_response: botocore.awsrequest.AWSResponse + :param http_response: The HTTP response from an AWS service request. + + :rtype: dict + :return: A response dictionary which will contain the following keys: + * headers (dict) + * status_code (int) + * body (string or file-like object) + + """ + response_dict = { + 'headers': http_response.headers, + 'status_code': http_response.status_code, + 'context': { + 'operation_name': operation_model.name, + }, + } + if response_dict['status_code'] >= 300: + response_dict['body'] = http_response.content + elif operation_model.has_event_stream_output: + response_dict['body'] = http_response.raw + elif operation_model.has_streaming_output: + length = response_dict['headers'].get('content-length') + response_dict['body'] = StreamingBody(http_response.raw, length) + else: + response_dict['body'] = http_response.content + return response_dict + + +class Endpoint: + """ + Represents an endpoint for a particular service in a specific + region. Only an endpoint can make requests. + + :ivar service: The Service object that describes this endpoints + service. + :ivar host: The fully qualified endpoint hostname. + :ivar session: The session object. + """ + + def __init__( + self, + host, + endpoint_prefix, + event_emitter, + response_parser_factory=None, + http_session=None, + ): + self._endpoint_prefix = endpoint_prefix + self._event_emitter = event_emitter + self.host = host + self._lock = threading.Lock() + if response_parser_factory is None: + response_parser_factory = parsers.ResponseParserFactory() + self._response_parser_factory = response_parser_factory + self.http_session = http_session + if self.http_session is None: + self.http_session = URLLib3Session() + + def __repr__(self): + return f'{self._endpoint_prefix}({self.host})' + + def close(self): + self.http_session.close() + + def make_request(self, operation_model, request_dict): + logger.debug( + "Making request for %s with params: %s", + operation_model, + request_dict, + ) + return self._send_request(request_dict, operation_model) + + def create_request(self, params, operation_model=None): + request = create_request_object(params) + if operation_model: + request.stream_output = any( + [ + operation_model.has_streaming_output, + operation_model.has_event_stream_output, + ] + ) + service_id = operation_model.service_model.service_id.hyphenize() + event_name = f'request-created.{service_id}.{operation_model.name}' + self._event_emitter.emit( + event_name, + request=request, + operation_name=operation_model.name, + ) + prepared_request = self.prepare_request(request) + return prepared_request + + def _encode_headers(self, headers): + # In place encoding of headers to utf-8 if they are unicode. + for key, value in headers.items(): + if isinstance(value, str): + headers[key] = value.encode('utf-8') + + def prepare_request(self, request): + self._encode_headers(request.headers) + return request.prepare() + + def _calculate_ttl( + self, response_received_timestamp, date_header, read_timeout + ): + local_timestamp = get_current_datetime() + date_conversion = datetime.datetime.strptime( + date_header, "%a, %d %b %Y %H:%M:%S %Z" + ) + estimated_skew = date_conversion - response_received_timestamp + ttl = ( + local_timestamp + + datetime.timedelta(seconds=read_timeout) + + estimated_skew + ) + return ttl.strftime('%Y%m%dT%H%M%SZ') + + def _set_ttl(self, retries_context, read_timeout, success_response): + response_date_header = success_response[0].headers.get('Date') + has_streaming_input = retries_context.get('has_streaming_input') + if response_date_header and not has_streaming_input: + try: + response_received_timestamp = get_current_datetime() + retries_context['ttl'] = self._calculate_ttl( + response_received_timestamp, + response_date_header, + read_timeout, + ) + except Exception: + logger.debug( + "Exception received when updating retries context with TTL", + exc_info=True, + ) + + def _update_retries_context(self, context, attempt, success_response=None): + retries_context = context.setdefault('retries', {}) + retries_context['attempt'] = attempt + if 'invocation-id' not in retries_context: + retries_context['invocation-id'] = str(uuid.uuid4()) + + if success_response: + read_timeout = context['client_config'].read_timeout + self._set_ttl(retries_context, read_timeout, success_response) + + def _send_request(self, request_dict, operation_model): + attempts = 1 + context = request_dict['context'] + self._update_retries_context(context, attempts) + request = self.create_request(request_dict, operation_model) + success_response, exception = self._get_response( + request, operation_model, context + ) + while self._needs_retry( + attempts, + operation_model, + request_dict, + success_response, + exception, + ): + attempts += 1 + self._update_retries_context(context, attempts, success_response) + # If there is a stream associated with the request, we need + # to reset it before attempting to send the request again. + # This will ensure that we resend the entire contents of the + # body. + request.reset_stream() + # Create a new request when retried (including a new signature). + request = self.create_request(request_dict, operation_model) + success_response, exception = self._get_response( + request, operation_model, context + ) + if ( + success_response is not None + and 'ResponseMetadata' in success_response[1] + ): + # We want to share num retries, not num attempts. + total_retries = attempts - 1 + success_response[1]['ResponseMetadata']['RetryAttempts'] = ( + total_retries + ) + if exception is not None: + raise exception + else: + return success_response + + def _get_response(self, request, operation_model, context): + # This will return a tuple of (success_response, exception) + # and success_response is itself a tuple of + # (http_response, parsed_dict). + # If an exception occurs then the success_response is None. + # If no exception occurs then exception is None. + success_response, exception = self._do_get_response( + request, operation_model, context + ) + kwargs_to_emit = { + 'response_dict': None, + 'parsed_response': None, + 'context': context, + 'exception': exception, + } + if success_response is not None: + http_response, parsed_response = success_response + kwargs_to_emit['parsed_response'] = parsed_response + kwargs_to_emit['response_dict'] = convert_to_response_dict( + http_response, operation_model + ) + service_id = operation_model.service_model.service_id.hyphenize() + self._event_emitter.emit( + f"response-received.{service_id}.{operation_model.name}", + **kwargs_to_emit, + ) + return success_response, exception + + def _do_get_response(self, request, operation_model, context): + try: + logger.debug("Sending http request: %s", request) + history_recorder.record( + 'HTTP_REQUEST', + { + 'method': request.method, + 'headers': request.headers, + 'streaming': operation_model.has_streaming_input, + 'url': request.url, + 'body': request.body, + }, + ) + service_id = operation_model.service_model.service_id.hyphenize() + event_name = f"before-send.{service_id}.{operation_model.name}" + responses = self._event_emitter.emit(event_name, request=request) + http_response = first_non_none_response(responses) + if http_response is None: + http_response = self._send(request) + except HTTPClientError as e: + return (None, e) + except Exception as e: + logger.debug( + "Exception received when sending HTTP request.", exc_info=True + ) + return (None, e) + # This returns the http_response and the parsed_data. + response_dict = convert_to_response_dict( + http_response, operation_model + ) + handle_checksum_body( + http_response, + response_dict, + context, + operation_model, + ) + + http_response_record_dict = response_dict.copy() + http_response_record_dict['streaming'] = ( + operation_model.has_streaming_output + ) + history_recorder.record('HTTP_RESPONSE', http_response_record_dict) + + protocol = operation_model.service_model.resolved_protocol + customized_response_dict = {} + self._event_emitter.emit( + f"before-parse.{service_id}.{operation_model.name}", + operation_model=operation_model, + response_dict=response_dict, + customized_response_dict=customized_response_dict, + ) + parser = self._response_parser_factory.create_parser(protocol) + parsed_response = parser.parse( + response_dict, operation_model.output_shape + ) + parsed_response.update(customized_response_dict) + # Do a second parsing pass to pick up on any modeled error fields + # NOTE: Ideally, we would push this down into the parser classes but + # they currently have no reference to the operation or service model + # The parsers should probably take the operation model instead of + # output shape but we can't change that now + if http_response.status_code >= 300: + self._add_modeled_error_fields( + response_dict, + parsed_response, + operation_model, + parser, + ) + history_recorder.record('PARSED_RESPONSE', parsed_response) + return (http_response, parsed_response), None + + def _add_modeled_error_fields( + self, + response_dict, + parsed_response, + operation_model, + parser, + ): + error_code = parsed_response.get("Error", {}).get("Code") + if error_code is None: + return + service_model = operation_model.service_model + error_shape = service_model.shape_for_error_code(error_code) + if error_shape is None: + return + modeled_parse = parser.parse(response_dict, error_shape) + # TODO: avoid naming conflicts with ResponseMetadata and Error + parsed_response.update(modeled_parse) + + def _needs_retry( + self, + attempts, + operation_model, + request_dict, + response=None, + caught_exception=None, + ): + service_id = operation_model.service_model.service_id.hyphenize() + event_name = f"needs-retry.{service_id}.{operation_model.name}" + responses = self._event_emitter.emit( + event_name, + response=response, + endpoint=self, + operation=operation_model, + attempts=attempts, + caught_exception=caught_exception, + request_dict=request_dict, + ) + handler_response = first_non_none_response(responses) + if handler_response is None: + return False + else: + # Request needs to be retried, and we need to sleep + # for the specified number of times. + logger.debug( + "Response received to retry, sleeping for %s seconds", + handler_response, + ) + time.sleep(handler_response) + return True + + def _send(self, request): + return self.http_session.send(request) + + +class EndpointCreator: + def __init__(self, event_emitter): + self._event_emitter = event_emitter + + def create_endpoint( + self, + service_model, + region_name, + endpoint_url, + verify=None, + response_parser_factory=None, + timeout=DEFAULT_TIMEOUT, + max_pool_connections=MAX_POOL_CONNECTIONS, + http_session_cls=URLLib3Session, + proxies=None, + socket_options=None, + client_cert=None, + proxies_config=None, + ): + if not is_valid_endpoint_url( + endpoint_url + ) and not is_valid_ipv6_endpoint_url(endpoint_url): + raise ValueError(f"Invalid endpoint: {endpoint_url}") + + if proxies is None: + proxies = self._get_proxies(endpoint_url) + endpoint_prefix = service_model.endpoint_prefix + + logger.debug('Setting %s timeout as %s', endpoint_prefix, timeout) + http_session = http_session_cls( + timeout=timeout, + proxies=proxies, + verify=self._get_verify_value(verify), + max_pool_connections=max_pool_connections, + socket_options=socket_options, + client_cert=client_cert, + proxies_config=proxies_config, + ) + + return Endpoint( + endpoint_url, + endpoint_prefix=endpoint_prefix, + event_emitter=self._event_emitter, + response_parser_factory=response_parser_factory, + http_session=http_session, + ) + + def _get_proxies(self, url): + # We could also support getting proxies from a config file, + # but for now proxy support is taken from the environment. + return get_environ_proxies(url) + + def _get_verify_value(self, verify): + # This is to account for: + # https://github.com/kennethreitz/requests/issues/1436 + # where we need to honor REQUESTS_CA_BUNDLE because we're creating our + # own request objects. + # First, if verify is not None, then the user explicitly specified + # a value so this automatically wins. + if verify is not None: + return verify + # Otherwise use the value from REQUESTS_CA_BUNDLE, or default to + # True if the env var does not exist. + return os.environ.get('REQUESTS_CA_BUNDLE', True) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/endpoint_provider.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/endpoint_provider.py new file mode 100644 index 0000000000000000000000000000000000000000..d76f9ac2453b2e4af09cacdaa68c0c8f4f00055f --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/endpoint_provider.py @@ -0,0 +1,723 @@ +# Copyright 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. + +""" +NOTE: All classes and functions in this module are considered private and are +subject to abrupt breaking changes. Please do not use them directly. + +To view the raw JSON that the objects in this module represent, please +go to any `endpoint-rule-set.json` file in /botocore/data/// +or you can look at the test files in /tests/unit/data/endpoints/valid-rules/ +""" + +import logging +import re +from enum import Enum +from string import Formatter +from typing import NamedTuple + +from botocore import xform_name +from botocore.compat import IPV4_RE, quote, urlparse +from botocore.exceptions import EndpointResolutionError +from botocore.utils import ( + ArnParser, + InvalidArnException, + is_valid_ipv4_endpoint_url, + is_valid_ipv6_endpoint_url, + lru_cache_weakref, + normalize_url_path, + percent_encode, +) + +logger = logging.getLogger(__name__) + +TEMPLATE_STRING_RE = re.compile(r"\{[a-zA-Z#]+\}") +GET_ATTR_RE = re.compile(r"(\w*)\[(\d+)\]") +VALID_HOST_LABEL_RE = re.compile( + r"^(?!-)[a-zA-Z\d-]{1,63}(?= len(value): + return None + return value[index] + else: + value = value[part] + return value + + def format_partition_output(self, partition): + output = partition["outputs"] + output["name"] = partition["id"] + return output + + def is_partition_match(self, region, partition): + matches_regex = re.match(partition["regionRegex"], region) is not None + return region in partition["regions"] or matches_regex + + def aws_partition(self, value): + """Match a region string to an AWS partition. + + :type value: str + :rtype: dict + """ + partitions = self.partitions_data['partitions'] + + if value is not None: + for partition in partitions: + if self.is_partition_match(value, partition): + return self.format_partition_output(partition) + + # return the default partition if no matches were found + aws_partition = partitions[0] + return self.format_partition_output(aws_partition) + + def aws_parse_arn(self, value): + """Parse and validate string for ARN components. + + :type value: str + :rtype: dict + """ + if value is None or not value.startswith("arn:"): + return None + + try: + arn_dict = ARN_PARSER.parse_arn(value) + except InvalidArnException: + return None + + # partition, resource, and service are required + if not all( + (arn_dict["partition"], arn_dict["service"], arn_dict["resource"]) + ): + return None + + arn_dict["accountId"] = arn_dict.pop("account") + + resource = arn_dict.pop("resource") + arn_dict["resourceId"] = resource.replace(":", "/").split("/") + + return arn_dict + + def is_valid_host_label(self, value, allow_subdomains): + """Evaluates whether a value is a valid host label per + RFC 1123. If allow_subdomains is True, split on `.` and validate + each component separately. + + :type value: str + :type allow_subdomains: bool + :rtype: bool + """ + if value is None or allow_subdomains is False and value.count(".") > 0: + return False + + if allow_subdomains is True: + return all( + self.is_valid_host_label(label, False) + for label in value.split(".") + ) + + return VALID_HOST_LABEL_RE.match(value) is not None + + def string_equals(self, value1, value2): + """Evaluates two string values for equality. + + :type value1: str + :type value2: str + :rtype: bool + """ + if not all(isinstance(val, str) for val in (value1, value2)): + msg = f"Both values must be strings, not {type(value1)} and {type(value2)}." + raise EndpointResolutionError(msg=msg) + return value1 == value2 + + def uri_encode(self, value): + """Perform percent-encoding on an input string. + + :type value: str + :rytpe: str + """ + if value is None: + return None + + return percent_encode(value) + + def parse_url(self, value): + """Parse a URL string into components. + + :type value: str + :rtype: dict + """ + if value is None: + return None + + url_components = urlparse(value) + try: + # url_parse may assign non-integer values to + # `port` and will fail when accessed. + url_components.port + except ValueError: + return None + + scheme = url_components.scheme + query = url_components.query + # URLs with queries are not supported + if scheme not in ("https", "http") or len(query) > 0: + return None + + path = url_components.path + normalized_path = quote(normalize_url_path(path)) + if not normalized_path.endswith("/"): + normalized_path = f"{normalized_path}/" + + return { + "scheme": scheme, + "authority": url_components.netloc, + "path": path, + "normalizedPath": normalized_path, + "isIp": is_valid_ipv4_endpoint_url(value) + or is_valid_ipv6_endpoint_url(value), + } + + def boolean_equals(self, value1, value2): + """Evaluates two boolean values for equality. + + :type value1: bool + :type value2: bool + :rtype: bool + """ + if not all(isinstance(val, bool) for val in (value1, value2)): + msg = f"Both arguments must be bools, not {type(value1)} and {type(value2)}." + raise EndpointResolutionError(msg=msg) + return value1 is value2 + + def is_ascii(self, value): + """Evaluates if a string only contains ASCII characters. + + :type value: str + :rtype: bool + """ + try: + value.encode("ascii") + return True + except UnicodeEncodeError: + return False + + def substring(self, value, start, stop, reverse): + """Computes a substring given the start index and end index. If `reverse` is + True, slice the string from the end instead. + + :type value: str + :type start: int + :type end: int + :type reverse: bool + :rtype: str + """ + if not isinstance(value, str): + msg = f"Input must be a string, not {type(value)}." + raise EndpointResolutionError(msg=msg) + if start >= stop or len(value) < stop or not self.is_ascii(value): + return None + + if reverse is True: + r_start = len(value) - stop + r_stop = len(value) - start + return value[r_start:r_stop] + + return value[start:stop] + + def _not(self, value): + """A function implementation of the logical operator `not`. + + :type value: Any + :rtype: bool + """ + return not value + + def aws_is_virtual_hostable_s3_bucket(self, value, allow_subdomains): + """Evaluates whether a value is a valid bucket name for virtual host + style bucket URLs. To pass, the value must meet the following criteria: + 1. is_valid_host_label(value) is True + 2. length between 3 and 63 characters (inclusive) + 3. does not contain uppercase characters + 4. is not formatted as an IP address + + If allow_subdomains is True, split on `.` and validate + each component separately. + + :type value: str + :type allow_subdomains: bool + :rtype: bool + """ + if ( + value is None + or len(value) < 3 + or value.lower() != value + or IPV4_RE.match(value) is not None + ): + return False + + return self.is_valid_host_label( + value, allow_subdomains=allow_subdomains + ) + + +# maintains backwards compatibility as `Library` was misspelled +# in earlier versions +RuleSetStandardLibary = RuleSetStandardLibrary + + +class BaseRule: + """Base interface for individual endpoint rules.""" + + def __init__(self, conditions, documentation=None): + self.conditions = conditions + self.documentation = documentation + + def evaluate(self, scope_vars, rule_lib): + raise NotImplementedError() + + def evaluate_conditions(self, scope_vars, rule_lib): + """Determine if all conditions in a rule are met. + + :type scope_vars: dict + :type rule_lib: RuleSetStandardLibrary + :rtype: bool + """ + for func_signature in self.conditions: + result = rule_lib.call_function(func_signature, scope_vars) + if result is False or result is None: + return False + return True + + +class RuleSetEndpoint(NamedTuple): + """A resolved endpoint object returned by a rule.""" + + url: str + properties: dict + headers: dict + + +class EndpointRule(BaseRule): + def __init__(self, endpoint, **kwargs): + super().__init__(**kwargs) + self.endpoint = endpoint + + def evaluate(self, scope_vars, rule_lib): + """Determine if conditions are met to provide a valid endpoint. + + :type scope_vars: dict + :rtype: RuleSetEndpoint + """ + if self.evaluate_conditions(scope_vars, rule_lib): + url = rule_lib.resolve_value(self.endpoint["url"], scope_vars) + properties = self.resolve_properties( + self.endpoint.get("properties", {}), + scope_vars, + rule_lib, + ) + headers = self.resolve_headers(scope_vars, rule_lib) + return RuleSetEndpoint( + url=url, properties=properties, headers=headers + ) + + return None + + def resolve_properties(self, properties, scope_vars, rule_lib): + """Traverse `properties` attribute, resolving any template strings. + + :type properties: dict/list/str + :type scope_vars: dict + :type rule_lib: RuleSetStandardLibrary + :rtype: dict + """ + if isinstance(properties, list): + return [ + self.resolve_properties(prop, scope_vars, rule_lib) + for prop in properties + ] + elif isinstance(properties, dict): + return { + key: self.resolve_properties(value, scope_vars, rule_lib) + for key, value in properties.items() + } + elif rule_lib.is_template(properties): + return rule_lib.resolve_template_string(properties, scope_vars) + + return properties + + def resolve_headers(self, scope_vars, rule_lib): + """Iterate through headers attribute resolving all values. + + :type scope_vars: dict + :type rule_lib: RuleSetStandardLibrary + :rtype: dict + """ + resolved_headers = {} + headers = self.endpoint.get("headers", {}) + + for header, values in headers.items(): + resolved_headers[header] = [ + rule_lib.resolve_value(item, scope_vars) for item in values + ] + return resolved_headers + + +class ErrorRule(BaseRule): + def __init__(self, error, **kwargs): + super().__init__(**kwargs) + self.error = error + + def evaluate(self, scope_vars, rule_lib): + """If an error rule's conditions are met, raise an error rule. + + :type scope_vars: dict + :type rule_lib: RuleSetStandardLibrary + :rtype: EndpointResolutionError + """ + if self.evaluate_conditions(scope_vars, rule_lib): + error = rule_lib.resolve_value(self.error, scope_vars) + raise EndpointResolutionError(msg=error) + return None + + +class TreeRule(BaseRule): + """A tree rule is non-terminal meaning it will never be returned to a provider. + Additionally this means it has no attributes that need to be resolved. + """ + + def __init__(self, rules, **kwargs): + super().__init__(**kwargs) + self.rules = [RuleCreator.create(**rule) for rule in rules] + + def evaluate(self, scope_vars, rule_lib): + """If a tree rule's conditions are met, iterate its sub-rules + and return first result found. + + :type scope_vars: dict + :type rule_lib: RuleSetStandardLibrary + :rtype: RuleSetEndpoint/EndpointResolutionError + """ + if self.evaluate_conditions(scope_vars, rule_lib): + for rule in self.rules: + # don't share scope_vars between rules + rule_result = rule.evaluate(scope_vars.copy(), rule_lib) + if rule_result: + return rule_result + return None + + +class RuleCreator: + endpoint = EndpointRule + error = ErrorRule + tree = TreeRule + + @classmethod + def create(cls, **kwargs): + """Create a rule instance from metadata. + + :rtype: TreeRule/EndpointRule/ErrorRule + """ + rule_type = kwargs.pop("type") + try: + rule_class = getattr(cls, rule_type) + except AttributeError: + raise EndpointResolutionError( + msg=f"Unknown rule type: {rule_type}. A rule must " + "be of type tree, endpoint or error." + ) + else: + return rule_class(**kwargs) + + +class ParameterType(Enum): + """Translation from `type` attribute to native Python type.""" + + string = str + boolean = bool + stringarray = tuple + + +class ParameterDefinition: + """The spec of an individual parameter defined in a RuleSet.""" + + def __init__( + self, + name, + parameter_type, + documentation=None, + builtIn=None, + default=None, + required=None, + deprecated=None, + ): + self.name = name + try: + self.parameter_type = getattr( + ParameterType, parameter_type.lower() + ).value + except AttributeError: + raise EndpointResolutionError( + msg=f"Unknown parameter type: {parameter_type}. " + "A parameter must be of type string, boolean, or stringarray." + ) + self.documentation = documentation + self.builtin = builtIn + self.default = default + self.required = required + self.deprecated = deprecated + + def validate_input(self, value): + """Perform base validation on parameter input. + + :type value: Any + :raises: EndpointParametersError + """ + + if not isinstance(value, self.parameter_type): + raise EndpointResolutionError( + msg=f"Value ({self.name}) is the wrong " + f"type. Must be {self.parameter_type}." + ) + if self.deprecated is not None: + depr_str = f"{self.name} has been deprecated." + msg = self.deprecated.get("message") + since = self.deprecated.get("since") + if msg: + depr_str += f"\n{msg}" + if since: + depr_str += f"\nDeprecated since {since}." + logger.info(depr_str) + + return None + + def process_input(self, value): + """Process input against spec, applying default if value is None.""" + if value is None: + if self.default is not None: + return self.default + if self.required: + raise EndpointResolutionError( + msg=f"Cannot find value for required parameter {self.name}" + ) + # in all other cases, the parameter will keep the value None + else: + self.validate_input(value) + return value + + +class RuleSet: + """Collection of rules to derive a routable service endpoint.""" + + def __init__( + self, version, parameters, rules, partitions, documentation=None + ): + self.version = version + self.parameters = self._ingest_parameter_spec(parameters) + self.rules = [RuleCreator.create(**rule) for rule in rules] + self.rule_lib = RuleSetStandardLibrary(partitions) + self.documentation = documentation + + def _ingest_parameter_spec(self, parameters): + return { + name: ParameterDefinition( + name, + spec["type"], + spec.get("documentation"), + spec.get("builtIn"), + spec.get("default"), + spec.get("required"), + spec.get("deprecated"), + ) + for name, spec in parameters.items() + } + + def process_input_parameters(self, input_params): + """Process each input parameter against its spec. + + :type input_params: dict + """ + for name, spec in self.parameters.items(): + value = spec.process_input(input_params.get(name)) + if value is not None: + input_params[name] = value + return None + + def evaluate(self, input_parameters): + """Evaluate input parameters against rules returning first match. + + :type input_parameters: dict + """ + self.process_input_parameters(input_parameters) + for rule in self.rules: + evaluation = rule.evaluate(input_parameters.copy(), self.rule_lib) + if evaluation is not None: + return evaluation + return None + + +class EndpointProvider: + """Derives endpoints from a RuleSet for given input parameters.""" + + def __init__(self, ruleset_data, partition_data): + self.ruleset = RuleSet(**ruleset_data, partitions=partition_data) + + @lru_cache_weakref(maxsize=CACHE_SIZE) + def resolve_endpoint(self, **input_parameters): + """Match input parameters to a rule. + + :type input_parameters: dict + :rtype: RuleSetEndpoint + """ + params_for_error = input_parameters.copy() + endpoint = self.ruleset.evaluate(input_parameters) + if endpoint is None: + param_string = "\n".join( + [f"{key}: {value}" for key, value in params_for_error.items()] + ) + raise EndpointResolutionError( + msg=f"No endpoint found for parameters:\n{param_string}" + ) + return endpoint diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/errorfactory.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/errorfactory.py new file mode 100644 index 0000000000000000000000000000000000000000..6084e51da467c0cbf0e7fdeb52f858512bebcc6f --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/errorfactory.py @@ -0,0 +1,90 @@ +# Copyright 2016 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +from botocore.exceptions import ClientError +from botocore.utils import get_service_module_name + + +class BaseClientExceptions: + ClientError = ClientError + + def __init__(self, code_to_exception): + """Base class for exceptions object on a client + + :type code_to_exception: dict + :param code_to_exception: Mapping of error codes (strings) to exception + class that should be raised when encountering a particular + error code. + """ + self._code_to_exception = code_to_exception + + def from_code(self, error_code): + """Retrieves the error class based on the error code + + This is helpful for identifying the exception class needing to be + caught based on the ClientError.parsed_reponse['Error']['Code'] value + + :type error_code: string + :param error_code: The error code associated to a ClientError exception + + :rtype: ClientError or a subclass of ClientError + :returns: The appropriate modeled exception class for that error + code. If the error code does not match any of the known + modeled exceptions then return a generic ClientError. + """ + return self._code_to_exception.get(error_code, self.ClientError) + + def __getattr__(self, name): + exception_cls_names = [ + exception_cls.__name__ + for exception_cls in self._code_to_exception.values() + ] + raise AttributeError( + rf"{self} object has no attribute {name}. " + rf"Valid exceptions are: {', '.join(exception_cls_names)}" + ) + + +class ClientExceptionsFactory: + def __init__(self): + self._client_exceptions_cache = {} + + def create_client_exceptions(self, service_model): + """Creates a ClientExceptions object for the particular service client + + :type service_model: botocore.model.ServiceModel + :param service_model: The service model for the client + + :rtype: object that subclasses from BaseClientExceptions + :returns: The exceptions object of a client that can be used + to grab the various different modeled exceptions. + """ + service_name = service_model.service_name + if service_name not in self._client_exceptions_cache: + client_exceptions = self._create_client_exceptions(service_model) + self._client_exceptions_cache[service_name] = client_exceptions + return self._client_exceptions_cache[service_name] + + def _create_client_exceptions(self, service_model): + cls_props = {} + code_to_exception = {} + for error_shape in service_model.error_shapes: + exception_name = str(error_shape.name) + exception_cls = type(exception_name, (ClientError,), {}) + cls_props[exception_name] = exception_cls + code = str(error_shape.error_code) + code_to_exception[code] = exception_cls + cls_name = str(get_service_module_name(service_model) + 'Exceptions') + client_exceptions_cls = type( + cls_name, (BaseClientExceptions,), cls_props + ) + return client_exceptions_cls(code_to_exception) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/eventstream.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/eventstream.py new file mode 100644 index 0000000000000000000000000000000000000000..865e65b7870d8154acfa94cf48d3d72305269cc2 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/eventstream.py @@ -0,0 +1,622 @@ +# Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +"""Binary Event Stream Decoding""" + +from binascii import crc32 +from struct import unpack + +from botocore.exceptions import EventStreamError + +# byte length of the prelude (total_length + header_length + prelude_crc) +_PRELUDE_LENGTH = 12 +_MAX_HEADERS_LENGTH = 128 * 1024 # 128 Kb +_MAX_PAYLOAD_LENGTH = 24 * 1024 * 1024 # 24 Mb + + +class ParserError(Exception): + """Base binary flow encoding parsing exception.""" + + pass + + +class DuplicateHeader(ParserError): + """Duplicate header found in the event.""" + + def __init__(self, header): + message = f'Duplicate header present: "{header}"' + super().__init__(message) + + +class InvalidHeadersLength(ParserError): + """Headers length is longer than the maximum.""" + + def __init__(self, length): + message = f'Header length of {length} exceeded the maximum of {_MAX_HEADERS_LENGTH}' + super().__init__(message) + + +class InvalidPayloadLength(ParserError): + """Payload length is longer than the maximum.""" + + def __init__(self, length): + message = f'Payload length of {length} exceeded the maximum of {_MAX_PAYLOAD_LENGTH}' + super().__init__(message) + + +class ChecksumMismatch(ParserError): + """Calculated checksum did not match the expected checksum.""" + + def __init__(self, expected, calculated): + message = f'Checksum mismatch: expected 0x{expected:08x}, calculated 0x{calculated:08x}' + super().__init__(message) + + +class NoInitialResponseError(ParserError): + """An event of type initial-response was not received. + + This exception is raised when the event stream produced no events or + the first event in the stream was not of the initial-response type. + """ + + def __init__(self): + message = 'First event was not of the initial-response type' + super().__init__(message) + + +class DecodeUtils: + """Unpacking utility functions used in the decoder. + + All methods on this class take raw bytes and return a tuple containing + the value parsed from the bytes and the number of bytes consumed to parse + that value. + """ + + UINT8_BYTE_FORMAT = '!B' + UINT16_BYTE_FORMAT = '!H' + UINT32_BYTE_FORMAT = '!I' + INT8_BYTE_FORMAT = '!b' + INT16_BYTE_FORMAT = '!h' + INT32_BYTE_FORMAT = '!i' + INT64_BYTE_FORMAT = '!q' + PRELUDE_BYTE_FORMAT = '!III' + + # uint byte size to unpack format + UINT_BYTE_FORMAT = { + 1: UINT8_BYTE_FORMAT, + 2: UINT16_BYTE_FORMAT, + 4: UINT32_BYTE_FORMAT, + } + + @staticmethod + def unpack_true(data): + """This method consumes none of the provided bytes and returns True. + + :type data: bytes + :param data: The bytes to parse from. This is ignored in this method. + + :rtype: tuple + :rtype: (bool, int) + :returns: The tuple (True, 0) + """ + return True, 0 + + @staticmethod + def unpack_false(data): + """This method consumes none of the provided bytes and returns False. + + :type data: bytes + :param data: The bytes to parse from. This is ignored in this method. + + :rtype: tuple + :rtype: (bool, int) + :returns: The tuple (False, 0) + """ + return False, 0 + + @staticmethod + def unpack_uint8(data): + """Parse an unsigned 8-bit integer from the bytes. + + :type data: bytes + :param data: The bytes to parse from. + + :rtype: (int, int) + :returns: A tuple containing the (parsed integer value, bytes consumed) + """ + value = unpack(DecodeUtils.UINT8_BYTE_FORMAT, data[:1])[0] + return value, 1 + + @staticmethod + def unpack_uint32(data): + """Parse an unsigned 32-bit integer from the bytes. + + :type data: bytes + :param data: The bytes to parse from. + + :rtype: (int, int) + :returns: A tuple containing the (parsed integer value, bytes consumed) + """ + value = unpack(DecodeUtils.UINT32_BYTE_FORMAT, data[:4])[0] + return value, 4 + + @staticmethod + def unpack_int8(data): + """Parse a signed 8-bit integer from the bytes. + + :type data: bytes + :param data: The bytes to parse from. + + :rtype: (int, int) + :returns: A tuple containing the (parsed integer value, bytes consumed) + """ + value = unpack(DecodeUtils.INT8_BYTE_FORMAT, data[:1])[0] + return value, 1 + + @staticmethod + def unpack_int16(data): + """Parse a signed 16-bit integer from the bytes. + + :type data: bytes + :param data: The bytes to parse from. + + :rtype: tuple + :rtype: (int, int) + :returns: A tuple containing the (parsed integer value, bytes consumed) + """ + value = unpack(DecodeUtils.INT16_BYTE_FORMAT, data[:2])[0] + return value, 2 + + @staticmethod + def unpack_int32(data): + """Parse a signed 32-bit integer from the bytes. + + :type data: bytes + :param data: The bytes to parse from. + + :rtype: tuple + :rtype: (int, int) + :returns: A tuple containing the (parsed integer value, bytes consumed) + """ + value = unpack(DecodeUtils.INT32_BYTE_FORMAT, data[:4])[0] + return value, 4 + + @staticmethod + def unpack_int64(data): + """Parse a signed 64-bit integer from the bytes. + + :type data: bytes + :param data: The bytes to parse from. + + :rtype: tuple + :rtype: (int, int) + :returns: A tuple containing the (parsed integer value, bytes consumed) + """ + value = unpack(DecodeUtils.INT64_BYTE_FORMAT, data[:8])[0] + return value, 8 + + @staticmethod + def unpack_byte_array(data, length_byte_size=2): + """Parse a variable length byte array from the bytes. + + The bytes are expected to be in the following format: + [ length ][0 ... length bytes] + where length is an unsigned integer represented in the smallest number + of bytes to hold the maximum length of the array. + + :type data: bytes + :param data: The bytes to parse from. + + :type length_byte_size: int + :param length_byte_size: The byte size of the preceding integer that + represents the length of the array. Supported values are 1, 2, and 4. + + :rtype: (bytes, int) + :returns: A tuple containing the (parsed byte array, bytes consumed). + """ + uint_byte_format = DecodeUtils.UINT_BYTE_FORMAT[length_byte_size] + length = unpack(uint_byte_format, data[:length_byte_size])[0] + bytes_end = length + length_byte_size + array_bytes = data[length_byte_size:bytes_end] + return array_bytes, bytes_end + + @staticmethod + def unpack_utf8_string(data, length_byte_size=2): + """Parse a variable length utf-8 string from the bytes. + + The bytes are expected to be in the following format: + [ length ][0 ... length bytes] + where length is an unsigned integer represented in the smallest number + of bytes to hold the maximum length of the array and the following + bytes are a valid utf-8 string. + + :type data: bytes + :param bytes: The bytes to parse from. + + :type length_byte_size: int + :param length_byte_size: The byte size of the preceding integer that + represents the length of the array. Supported values are 1, 2, and 4. + + :rtype: (str, int) + :returns: A tuple containing the (utf-8 string, bytes consumed). + """ + array_bytes, consumed = DecodeUtils.unpack_byte_array( + data, length_byte_size + ) + return array_bytes.decode('utf-8'), consumed + + @staticmethod + def unpack_uuid(data): + """Parse a 16-byte uuid from the bytes. + + :type data: bytes + :param data: The bytes to parse from. + + :rtype: (bytes, int) + :returns: A tuple containing the (uuid bytes, bytes consumed). + """ + return data[:16], 16 + + @staticmethod + def unpack_prelude(data): + """Parse the prelude for an event stream message from the bytes. + + The prelude for an event stream message has the following format: + [total_length][header_length][prelude_crc] + where each field is an unsigned 32-bit integer. + + :rtype: ((int, int, int), int) + :returns: A tuple of ((total_length, headers_length, prelude_crc), + consumed) + """ + return (unpack(DecodeUtils.PRELUDE_BYTE_FORMAT, data), _PRELUDE_LENGTH) + + +def _validate_checksum(data, checksum, crc=0): + # To generate the same numeric value across all Python versions and + # platforms use crc32(data) & 0xffffffff. + computed_checksum = crc32(data, crc) & 0xFFFFFFFF + if checksum != computed_checksum: + raise ChecksumMismatch(checksum, computed_checksum) + + +class MessagePrelude: + """Represents the prelude of an event stream message.""" + + def __init__(self, total_length, headers_length, crc): + self.total_length = total_length + self.headers_length = headers_length + self.crc = crc + + @property + def payload_length(self): + """Calculates the total payload length. + + The extra minus 4 bytes is for the message CRC. + + :rtype: int + :returns: The total payload length. + """ + return self.total_length - self.headers_length - _PRELUDE_LENGTH - 4 + + @property + def payload_end(self): + """Calculates the byte offset for the end of the message payload. + + The extra minus 4 bytes is for the message CRC. + + :rtype: int + :returns: The byte offset from the beginning of the event stream + message to the end of the payload. + """ + return self.total_length - 4 + + @property + def headers_end(self): + """Calculates the byte offset for the end of the message headers. + + :rtype: int + :returns: The byte offset from the beginning of the event stream + message to the end of the headers. + """ + return _PRELUDE_LENGTH + self.headers_length + + +class EventStreamMessage: + """Represents an event stream message.""" + + def __init__(self, prelude, headers, payload, crc): + self.prelude = prelude + self.headers = headers + self.payload = payload + self.crc = crc + + def to_response_dict(self, status_code=200): + message_type = self.headers.get(':message-type') + if message_type == 'error' or message_type == 'exception': + status_code = 400 + return { + 'status_code': status_code, + 'headers': self.headers, + 'body': self.payload, + } + + +class EventStreamHeaderParser: + """Parses the event headers from an event stream message. + + Expects all of the header data upfront and creates a dictionary of headers + to return. This object can be reused multiple times to parse the headers + from multiple event stream messages. + """ + + # Maps header type to appropriate unpacking function + # These unpacking functions return the value and the amount unpacked + _HEADER_TYPE_MAP = { + # boolean_true + 0: DecodeUtils.unpack_true, + # boolean_false + 1: DecodeUtils.unpack_false, + # byte + 2: DecodeUtils.unpack_int8, + # short + 3: DecodeUtils.unpack_int16, + # integer + 4: DecodeUtils.unpack_int32, + # long + 5: DecodeUtils.unpack_int64, + # byte_array + 6: DecodeUtils.unpack_byte_array, + # string + 7: DecodeUtils.unpack_utf8_string, + # timestamp + 8: DecodeUtils.unpack_int64, + # uuid + 9: DecodeUtils.unpack_uuid, + } + + def __init__(self): + self._data = None + + def parse(self, data): + """Parses the event stream headers from an event stream message. + + :type data: bytes + :param data: The bytes that correspond to the headers section of an + event stream message. + + :rtype: dict + :returns: A dictionary of header key, value pairs. + """ + self._data = data + return self._parse_headers() + + def _parse_headers(self): + headers = {} + while self._data: + name, value = self._parse_header() + if name in headers: + raise DuplicateHeader(name) + headers[name] = value + return headers + + def _parse_header(self): + name = self._parse_name() + value = self._parse_value() + return name, value + + def _parse_name(self): + name, consumed = DecodeUtils.unpack_utf8_string(self._data, 1) + self._advance_data(consumed) + return name + + def _parse_type(self): + type, consumed = DecodeUtils.unpack_uint8(self._data) + self._advance_data(consumed) + return type + + def _parse_value(self): + header_type = self._parse_type() + value_unpacker = self._HEADER_TYPE_MAP[header_type] + value, consumed = value_unpacker(self._data) + self._advance_data(consumed) + return value + + def _advance_data(self, consumed): + self._data = self._data[consumed:] + + +class EventStreamBuffer: + """Streaming based event stream buffer + + A buffer class that wraps bytes from an event stream providing parsed + messages as they become available via an iterable interface. + """ + + def __init__(self): + self._data = b'' + self._prelude = None + self._header_parser = EventStreamHeaderParser() + + def add_data(self, data): + """Add data to the buffer. + + :type data: bytes + :param data: The bytes to add to the buffer to be used when parsing + """ + self._data += data + + def _validate_prelude(self, prelude): + if prelude.headers_length > _MAX_HEADERS_LENGTH: + raise InvalidHeadersLength(prelude.headers_length) + + if prelude.payload_length > _MAX_PAYLOAD_LENGTH: + raise InvalidPayloadLength(prelude.payload_length) + + def _parse_prelude(self): + prelude_bytes = self._data[:_PRELUDE_LENGTH] + raw_prelude, _ = DecodeUtils.unpack_prelude(prelude_bytes) + prelude = MessagePrelude(*raw_prelude) + # The minus 4 removes the prelude crc from the bytes to be checked + _validate_checksum(prelude_bytes[: _PRELUDE_LENGTH - 4], prelude.crc) + self._validate_prelude(prelude) + return prelude + + def _parse_headers(self): + header_bytes = self._data[_PRELUDE_LENGTH : self._prelude.headers_end] + return self._header_parser.parse(header_bytes) + + def _parse_payload(self): + prelude = self._prelude + payload_bytes = self._data[prelude.headers_end : prelude.payload_end] + return payload_bytes + + def _parse_message_crc(self): + prelude = self._prelude + crc_bytes = self._data[prelude.payload_end : prelude.total_length] + message_crc, _ = DecodeUtils.unpack_uint32(crc_bytes) + return message_crc + + def _parse_message_bytes(self): + # The minus 4 includes the prelude crc to the bytes to be checked + message_bytes = self._data[ + _PRELUDE_LENGTH - 4 : self._prelude.payload_end + ] + return message_bytes + + def _validate_message_crc(self): + message_crc = self._parse_message_crc() + message_bytes = self._parse_message_bytes() + _validate_checksum(message_bytes, message_crc, crc=self._prelude.crc) + return message_crc + + def _parse_message(self): + crc = self._validate_message_crc() + headers = self._parse_headers() + payload = self._parse_payload() + message = EventStreamMessage(self._prelude, headers, payload, crc) + self._prepare_for_next_message() + return message + + def _prepare_for_next_message(self): + # Advance the data and reset the current prelude + self._data = self._data[self._prelude.total_length :] + self._prelude = None + + def next(self): + """Provides the next available message parsed from the stream + + :rtype: EventStreamMessage + :returns: The next event stream message + """ + if len(self._data) < _PRELUDE_LENGTH: + raise StopIteration() + + if self._prelude is None: + self._prelude = self._parse_prelude() + + if len(self._data) < self._prelude.total_length: + raise StopIteration() + + return self._parse_message() + + def __next__(self): + return self.next() + + def __iter__(self): + return self + + +class EventStream: + """Wrapper class for an event stream body. + + This wraps the underlying streaming body, parsing it for individual events + and yielding them as they come available through the iterator interface. + + The following example uses the S3 select API to get structured data out of + an object stored in S3 using an event stream. + + **Example:** + :: + from botocore.session import Session + + s3 = Session().create_client('s3') + response = s3.select_object_content( + Bucket='bucketname', + Key='keyname', + ExpressionType='SQL', + RequestProgress={'Enabled': True}, + Expression="SELECT * FROM S3Object s", + InputSerialization={'CSV': {}}, + OutputSerialization={'CSV': {}}, + ) + # This is the event stream in the response + event_stream = response['Payload'] + end_event_received = False + with open('output', 'wb') as f: + # Iterate over events in the event stream as they come + for event in event_stream: + # If we received a records event, write the data to a file + if 'Records' in event: + data = event['Records']['Payload'] + f.write(data) + # If we received a progress event, print the details + elif 'Progress' in event: + print(event['Progress']['Details']) + # End event indicates that the request finished successfully + elif 'End' in event: + print('Result is complete') + end_event_received = True + if not end_event_received: + raise Exception("End event not received, request incomplete.") + """ + + def __init__(self, raw_stream, output_shape, parser, operation_name): + self._raw_stream = raw_stream + self._output_shape = output_shape + self._operation_name = operation_name + self._parser = parser + self._event_generator = self._create_raw_event_generator() + + def __iter__(self): + for event in self._event_generator: + parsed_event = self._parse_event(event) + if parsed_event: + yield parsed_event + + def _create_raw_event_generator(self): + event_stream_buffer = EventStreamBuffer() + for chunk in self._raw_stream.stream(): + event_stream_buffer.add_data(chunk) + yield from event_stream_buffer + + def _parse_event(self, event): + response_dict = event.to_response_dict() + parsed_response = self._parser.parse(response_dict, self._output_shape) + if response_dict['status_code'] == 200: + return parsed_response + else: + raise EventStreamError(parsed_response, self._operation_name) + + def get_initial_response(self): + try: + initial_event = next(self._event_generator) + event_type = initial_event.headers.get(':event-type') + if event_type == 'initial-response': + return initial_event + except StopIteration: + pass + raise NoInitialResponseError() + + def close(self): + """Closes the underlying streaming body.""" + self._raw_stream.close() diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/exceptions.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/exceptions.py new file mode 100644 index 0000000000000000000000000000000000000000..e9b69029b82320361c87e80d4e9219b7e7c167f4 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/exceptions.py @@ -0,0 +1,831 @@ +# Copyright (c) 2012-2013 Mitch Garnaat http://garnaat.org/ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. + +from botocore.vendored import requests +from botocore.vendored.requests.packages import urllib3 + + +def _exception_from_packed_args(exception_cls, args=None, kwargs=None): + # This is helpful for reducing Exceptions that only accept kwargs as + # only positional arguments can be provided for __reduce__ + # Ideally, this would also be a class method on the BotoCoreError + # but instance methods cannot be pickled. + if args is None: + args = () + if kwargs is None: + kwargs = {} + return exception_cls(*args, **kwargs) + + +class BotoCoreError(Exception): + """ + The base exception class for BotoCore exceptions. + + :ivar msg: The descriptive message associated with the error. + """ + + fmt = 'An unspecified error occurred' + + def __init__(self, **kwargs): + msg = self.fmt.format(**kwargs) + Exception.__init__(self, msg) + self.kwargs = kwargs + + def __reduce__(self): + return _exception_from_packed_args, (self.__class__, None, self.kwargs) + + +class DataNotFoundError(BotoCoreError): + """ + The data associated with a particular path could not be loaded. + + :ivar data_path: The data path that the user attempted to load. + """ + + fmt = 'Unable to load data for: {data_path}' + + +class UnknownServiceError(DataNotFoundError): + """Raised when trying to load data for an unknown service. + + :ivar service_name: The name of the unknown service. + + """ + + fmt = ( + "Unknown service: '{service_name}'. Valid service names are: " + "{known_service_names}" + ) + + +class UnknownRegionError(BotoCoreError): + """Raised when trying to load data for an unknown region. + + :ivar region_name: The name of the unknown region. + + """ + + fmt = "Unknown region: '{region_name}'. {error_msg}" + + +class ApiVersionNotFoundError(BotoCoreError): + """ + The data associated with either the API version or a compatible one + could not be loaded. + + :ivar data_path: The data path that the user attempted to load. + :ivar api_version: The API version that the user attempted to load. + """ + + fmt = 'Unable to load data {data_path} for: {api_version}' + + +class HTTPClientError(BotoCoreError): + fmt = 'An HTTP Client raised an unhandled exception: {error}' + + def __init__(self, request=None, response=None, **kwargs): + self.request = request + self.response = response + super().__init__(**kwargs) + + def __reduce__(self): + return _exception_from_packed_args, ( + self.__class__, + (self.request, self.response), + self.kwargs, + ) + + +class ConnectionError(BotoCoreError): + fmt = 'An HTTP Client failed to establish a connection: {error}' + + +class InvalidIMDSEndpointError(BotoCoreError): + fmt = 'Invalid endpoint EC2 Instance Metadata endpoint: {endpoint}' + + +class InvalidIMDSEndpointModeError(BotoCoreError): + fmt = ( + 'Invalid EC2 Instance Metadata endpoint mode: {mode}' + ' Valid endpoint modes (case-insensitive): {valid_modes}.' + ) + + +class EndpointConnectionError(ConnectionError): + fmt = 'Could not connect to the endpoint URL: "{endpoint_url}"' + + +class SSLError(ConnectionError, requests.exceptions.SSLError): + fmt = 'SSL validation failed for {endpoint_url} {error}' + + +class ConnectionClosedError(HTTPClientError): + fmt = ( + 'Connection was closed before we received a valid response ' + 'from endpoint URL: "{endpoint_url}".' + ) + + +class ReadTimeoutError( + HTTPClientError, + requests.exceptions.ReadTimeout, + urllib3.exceptions.ReadTimeoutError, +): + fmt = 'Read timeout on endpoint URL: "{endpoint_url}"' + + +class ConnectTimeoutError(ConnectionError, requests.exceptions.ConnectTimeout): + fmt = 'Connect timeout on endpoint URL: "{endpoint_url}"' + + +class ProxyConnectionError(ConnectionError, requests.exceptions.ProxyError): + fmt = 'Failed to connect to proxy URL: "{proxy_url}"' + + +class ResponseStreamingError(HTTPClientError): + fmt = 'An error occurred while reading from response stream: {error}' + + +class NoCredentialsError(BotoCoreError): + """ + No credentials could be found. + """ + + fmt = 'Unable to locate credentials' + + +class NoAuthTokenError(BotoCoreError): + """ + No authorization token could be found. + """ + + fmt = 'Unable to locate authorization token' + + +class TokenRetrievalError(BotoCoreError): + """ + Error attempting to retrieve a token from a remote source. + + :ivar provider: The name of the token provider. + :ivar error_msg: The msg explaining why the token could not be retrieved. + + """ + + fmt = 'Error when retrieving token from {provider}: {error_msg}' + + +class PartialCredentialsError(BotoCoreError): + """ + Only partial credentials were found. + + :ivar cred_var: The missing credential variable name. + + """ + + fmt = 'Partial credentials found in {provider}, missing: {cred_var}' + + +class CredentialRetrievalError(BotoCoreError): + """ + Error attempting to retrieve credentials from a remote source. + + :ivar provider: The name of the credential provider. + :ivar error_msg: The msg explaining why credentials could not be + retrieved. + + """ + + fmt = 'Error when retrieving credentials from {provider}: {error_msg}' + + +class UnknownSignatureVersionError(BotoCoreError): + """ + Requested Signature Version is not known. + + :ivar signature_version: The name of the requested signature version. + """ + + fmt = 'Unknown Signature Version: {signature_version}.' + + +class ServiceNotInRegionError(BotoCoreError): + """ + The service is not available in requested region. + + :ivar service_name: The name of the service. + :ivar region_name: The name of the region. + """ + + fmt = 'Service {service_name} not available in region {region_name}' + + +class BaseEndpointResolverError(BotoCoreError): + """Base error for endpoint resolving errors. + + Should never be raised directly, but clients can catch + this exception if they want to generically handle any errors + during the endpoint resolution process. + + """ + + +class NoRegionError(BaseEndpointResolverError): + """No region was specified.""" + + fmt = 'You must specify a region.' + + +class EndpointVariantError(BaseEndpointResolverError): + """ + Could not construct modeled endpoint variant. + + :ivar error_msg: The message explaining why the modeled endpoint variant + is unable to be constructed. + + """ + + fmt = ( + 'Unable to construct a modeled endpoint with the following ' + 'variant(s) {tags}: ' + ) + + +class UnknownEndpointError(BaseEndpointResolverError, ValueError): + """ + Could not construct an endpoint. + + :ivar service_name: The name of the service. + :ivar region_name: The name of the region. + """ + + fmt = ( + 'Unable to construct an endpoint for ' + '{service_name} in region {region_name}' + ) + + +class UnknownFIPSEndpointError(BaseEndpointResolverError): + """ + Could not construct a FIPS endpoint. + + :ivar service_name: The name of the service. + :ivar region_name: The name of the region. + """ + + fmt = ( + 'The provided FIPS pseudo-region "{region_name}" is not known for ' + 'the service "{service_name}". A FIPS compliant endpoint cannot be ' + 'constructed.' + ) + + +class ProfileNotFound(BotoCoreError): + """ + The specified configuration profile was not found in the + configuration file. + + :ivar profile: The name of the profile the user attempted to load. + """ + + fmt = 'The config profile ({profile}) could not be found' + + +class ConfigParseError(BotoCoreError): + """ + The configuration file could not be parsed. + + :ivar path: The path to the configuration file. + """ + + fmt = 'Unable to parse config file: {path}' + + +class ConfigNotFound(BotoCoreError): + """ + The specified configuration file could not be found. + + :ivar path: The path to the configuration file. + """ + + fmt = 'The specified config file ({path}) could not be found.' + + +class MissingParametersError(BotoCoreError): + """ + One or more required parameters were not supplied. + + :ivar object: The object that has missing parameters. + This can be an operation or a parameter (in the + case of inner params). The str() of this object + will be used so it doesn't need to implement anything + other than str(). + :ivar missing: The names of the missing parameters. + """ + + fmt = ( + 'The following required parameters are missing for ' + '{object_name}: {missing}' + ) + + +class ValidationError(BotoCoreError): + """ + An exception occurred validating parameters. + + Subclasses must accept a ``value`` and ``param`` + argument in their ``__init__``. + + :ivar value: The value that was being validated. + :ivar param: The parameter that failed validation. + :ivar type_name: The name of the underlying type. + """ + + fmt = "Invalid value ('{value}') for param {param} of type {type_name} " + + +class ParamValidationError(BotoCoreError): + fmt = 'Parameter validation failed:\n{report}' + + +# These exceptions subclass from ValidationError so that code +# can just 'except ValidationError' to catch any possibly validation +# error. +class UnknownKeyError(ValidationError): + """ + Unknown key in a struct parameter. + + :ivar value: The value that was being checked. + :ivar param: The name of the parameter. + :ivar choices: The valid choices the value can be. + """ + + fmt = ( + "Unknown key '{value}' for param '{param}'. Must be one of: {choices}" + ) + + +class RangeError(ValidationError): + """ + A parameter value was out of the valid range. + + :ivar value: The value that was being checked. + :ivar param: The parameter that failed validation. + :ivar min_value: The specified minimum value. + :ivar max_value: The specified maximum value. + """ + + fmt = ( + 'Value out of range for param {param}: ' + '{min_value} <= {value} <= {max_value}' + ) + + +class UnknownParameterError(ValidationError): + """ + Unknown top level parameter. + + :ivar name: The name of the unknown parameter. + :ivar operation: The name of the operation. + :ivar choices: The valid choices the parameter name can be. + """ + + fmt = ( + "Unknown parameter '{name}' for operation {operation}. Must be one " + "of: {choices}" + ) + + +class InvalidRegionError(ValidationError, ValueError): + """ + Invalid region_name provided to client or resource. + + :ivar region_name: region_name that was being validated. + """ + + fmt = "Provided region_name '{region_name}' doesn't match a supported format." + + +class AliasConflictParameterError(ValidationError): + """ + Error when an alias is provided for a parameter as well as the original. + + :ivar original: The name of the original parameter. + :ivar alias: The name of the alias + :ivar operation: The name of the operation. + """ + + fmt = ( + "Parameter '{original}' and its alias '{alias}' were provided " + "for operation {operation}. Only one of them may be used." + ) + + +class UnknownServiceStyle(BotoCoreError): + """ + Unknown style of service invocation. + + :ivar service_style: The style requested. + """ + + fmt = 'The service style ({service_style}) is not understood.' + + +class PaginationError(BotoCoreError): + fmt = 'Error during pagination: {message}' + + +class OperationNotPageableError(BotoCoreError): + fmt = 'Operation cannot be paginated: {operation_name}' + + +class ChecksumError(BotoCoreError): + """The expected checksum did not match the calculated checksum.""" + + fmt = ( + 'Checksum {checksum_type} failed, expected checksum ' + '{expected_checksum} did not match calculated checksum ' + '{actual_checksum}.' + ) + + +class UnseekableStreamError(BotoCoreError): + """Need to seek a stream, but stream does not support seeking.""" + + fmt = ( + 'Need to rewind the stream {stream_object}, but stream ' + 'is not seekable.' + ) + + +class WaiterError(BotoCoreError): + """Waiter failed to reach desired state.""" + + fmt = 'Waiter {name} failed: {reason}' + + def __init__(self, name, reason, last_response): + super().__init__(name=name, reason=reason) + self.last_response = last_response + + +class IncompleteReadError(BotoCoreError): + """HTTP response did not return expected number of bytes.""" + + fmt = '{actual_bytes} read, but total bytes expected is {expected_bytes}.' + + +class InvalidExpressionError(BotoCoreError): + """Expression is either invalid or too complex.""" + + fmt = 'Invalid expression {expression}: Only dotted lookups are supported.' + + +class UnknownCredentialError(BotoCoreError): + """Tried to insert before/after an unregistered credential type.""" + + fmt = 'Credential named {name} not found.' + + +class WaiterConfigError(BotoCoreError): + """Error when processing waiter configuration.""" + + fmt = 'Error processing waiter config: {error_msg}' + + +class UnknownClientMethodError(BotoCoreError): + """Error when trying to access a method on a client that does not exist.""" + + fmt = 'Client does not have method: {method_name}' + + +class UnsupportedSignatureVersionError(BotoCoreError): + """Error when trying to use an unsupported Signature Version.""" + + fmt = 'Signature version(s) are not supported: {signature_version}' + + +class ClientError(Exception): + MSG_TEMPLATE = ( + 'An error occurred ({error_code}) when calling the {operation_name} ' + 'operation{retry_info}: {error_message}' + ) + + def __init__(self, error_response, operation_name): + retry_info = self._get_retry_info(error_response) + error = error_response.get('Error', {}) + msg = self.MSG_TEMPLATE.format( + error_code=error.get('Code', 'Unknown'), + error_message=error.get('Message', 'Unknown'), + operation_name=operation_name, + retry_info=retry_info, + ) + super().__init__(msg) + self.response = error_response + self.operation_name = operation_name + + def _get_retry_info(self, response): + retry_info = '' + if 'ResponseMetadata' in response: + metadata = response['ResponseMetadata'] + if metadata.get('MaxAttemptsReached', False): + if 'RetryAttempts' in metadata: + retry_info = ( + f" (reached max retries: {metadata['RetryAttempts']})" + ) + return retry_info + + def __reduce__(self): + # Subclasses of ClientError's are dynamically generated and + # cannot be pickled unless they are attributes of a + # module. So at the very least return a ClientError back. + return ClientError, (self.response, self.operation_name) + + +class EventStreamError(ClientError): + pass + + +class UnsupportedTLSVersionWarning(Warning): + """Warn when an openssl version that uses TLS 1.2 is required""" + + pass + + +class ImminentRemovalWarning(Warning): + pass + + +class InvalidDNSNameError(BotoCoreError): + """Error when virtual host path is forced on a non-DNS compatible bucket""" + + fmt = ( + 'Bucket named {bucket_name} is not DNS compatible. Virtual ' + 'hosted-style addressing cannot be used. The addressing style ' + 'can be configured by removing the addressing_style value ' + 'or setting that value to \'path\' or \'auto\' in the AWS Config ' + 'file or in the botocore.client.Config object.' + ) + + +class InvalidS3AddressingStyleError(BotoCoreError): + """Error when an invalid path style is specified""" + + fmt = ( + 'S3 addressing style {s3_addressing_style} is invalid. Valid options ' + 'are: \'auto\', \'virtual\', and \'path\'' + ) + + +class UnsupportedS3ArnError(BotoCoreError): + """Error when S3 ARN provided to Bucket parameter is not supported""" + + fmt = ( + 'S3 ARN {arn} provided to "Bucket" parameter is invalid. Only ' + 'ARNs for S3 access-points are supported.' + ) + + +class UnsupportedS3ControlArnError(BotoCoreError): + """Error when S3 ARN provided to S3 control parameter is not supported""" + + fmt = 'S3 ARN "{arn}" provided is invalid for this operation. {msg}' + + +class InvalidHostLabelError(BotoCoreError): + """Error when an invalid host label would be bound to an endpoint""" + + fmt = ( + 'Invalid host label to be bound to the hostname of the endpoint: ' + '"{label}".' + ) + + +class UnsupportedOutpostResourceError(BotoCoreError): + """Error when S3 Outpost ARN provided to Bucket parameter is incomplete""" + + fmt = ( + 'S3 Outpost ARN resource "{resource_name}" provided to "Bucket" ' + 'parameter is invalid. Only ARNs for S3 Outpost arns with an ' + 'access-point sub-resource are supported.' + ) + + +class UnsupportedS3ConfigurationError(BotoCoreError): + """Error when an unsupported configuration is used with access-points""" + + fmt = 'Unsupported configuration when using S3: {msg}' + + +class UnsupportedS3AccesspointConfigurationError(BotoCoreError): + """Error when an unsupported configuration is used with access-points""" + + fmt = 'Unsupported configuration when using S3 access-points: {msg}' + + +class InvalidEndpointDiscoveryConfigurationError(BotoCoreError): + """Error when invalid value supplied for endpoint_discovery_enabled""" + + fmt = ( + 'Unsupported configuration value for endpoint_discovery_enabled. ' + 'Expected one of ("true", "false", "auto") but got {config_value}.' + ) + + +class UnsupportedS3ControlConfigurationError(BotoCoreError): + """Error when an unsupported configuration is used with S3 Control""" + + fmt = 'Unsupported configuration when using S3 Control: {msg}' + + +class InvalidRetryConfigurationError(BotoCoreError): + """Error when invalid retry configuration is specified""" + + fmt = ( + 'Cannot provide retry configuration for "{retry_config_option}". ' + 'Valid retry configuration options are: {valid_options}' + ) + + +class InvalidMaxRetryAttemptsError(InvalidRetryConfigurationError): + """Error when invalid retry configuration is specified""" + + fmt = ( + 'Value provided to "max_attempts": {provided_max_attempts} must ' + 'be an integer greater than or equal to {min_value}.' + ) + + +class InvalidRetryModeError(InvalidRetryConfigurationError): + """Error when invalid retry mode configuration is specified""" + + fmt = ( + 'Invalid value provided to "mode": "{provided_retry_mode}" must ' + 'be one of: {valid_modes}' + ) + + +class InvalidS3UsEast1RegionalEndpointConfigError(BotoCoreError): + """Error for invalid s3 us-east-1 regional endpoints configuration""" + + fmt = ( + 'S3 us-east-1 regional endpoint option ' + '{s3_us_east_1_regional_endpoint_config} is ' + 'invalid. Valid options are: "legacy", "regional"' + ) + + +class InvalidSTSRegionalEndpointsConfigError(BotoCoreError): + """Error when invalid sts regional endpoints configuration is specified""" + + fmt = ( + 'STS regional endpoints option {sts_regional_endpoints_config} is ' + 'invalid. Valid options are: "legacy", "regional"' + ) + + +class StubResponseError(BotoCoreError): + fmt = ( + 'Error getting response stub for operation {operation_name}: {reason}' + ) + + +class StubAssertionError(StubResponseError, AssertionError): + pass + + +class UnStubbedResponseError(StubResponseError): + pass + + +class InvalidConfigError(BotoCoreError): + fmt = '{error_msg}' + + +class InfiniteLoopConfigError(InvalidConfigError): + fmt = ( + 'Infinite loop in credential configuration detected. Attempting to ' + 'load from profile {source_profile} which has already been visited. ' + 'Visited profiles: {visited_profiles}' + ) + + +class RefreshWithMFAUnsupportedError(BotoCoreError): + fmt = 'Cannot refresh credentials: MFA token required.' + + +class MD5UnavailableError(BotoCoreError): + fmt = "This system does not support MD5 generation." + + +class MissingDependencyException(BotoCoreError): + fmt = "Missing Dependency: {msg}" + + +class MetadataRetrievalError(BotoCoreError): + fmt = "Error retrieving metadata: {error_msg}" + + +class UndefinedModelAttributeError(Exception): + pass + + +class MissingServiceIdError(UndefinedModelAttributeError): + fmt = ( + "The model being used for the service {service_name} is missing the " + "serviceId metadata property, which is required." + ) + + def __init__(self, **kwargs): + msg = self.fmt.format(**kwargs) + Exception.__init__(self, msg) + self.kwargs = kwargs + + +class SSOError(BotoCoreError): + fmt = ( + "An unspecified error happened when resolving AWS credentials or an " + "access token from SSO." + ) + + +class SSOTokenLoadError(SSOError): + fmt = "Error loading SSO Token: {error_msg}" + + +class UnauthorizedSSOTokenError(SSOError): + fmt = ( + "The SSO session associated with this profile has expired or is " + "otherwise invalid. To refresh this SSO session run aws sso login " + "with the corresponding profile." + ) + + +class CapacityNotAvailableError(BotoCoreError): + fmt = 'Insufficient request capacity available.' + + +class InvalidProxiesConfigError(BotoCoreError): + fmt = 'Invalid configuration value(s) provided for proxies_config.' + + +class InvalidDefaultsMode(BotoCoreError): + fmt = ( + 'Client configured with invalid defaults mode: {mode}. ' + 'Valid defaults modes include: {valid_modes}.' + ) + + +class AwsChunkedWrapperError(BotoCoreError): + fmt = '{error_msg}' + + +class FlexibleChecksumError(BotoCoreError): + fmt = '{error_msg}' + + +class InvalidEndpointConfigurationError(BotoCoreError): + fmt = 'Invalid endpoint configuration: {msg}' + + +class EndpointProviderError(BotoCoreError): + """Base error for the EndpointProvider class""" + + fmt = '{msg}' + + +class EndpointResolutionError(EndpointProviderError): + """Error when input parameters resolve to an error rule""" + + fmt = '{msg}' + + +class UnknownEndpointResolutionBuiltInName(EndpointProviderError): + fmt = 'Unknown builtin variable name: {name}' + + +class InvalidChecksumConfigError(BotoCoreError): + """Error when an invalid checksum config value is supplied.""" + + fmt = ( + 'Unsupported configuration value for {config_key}. ' + 'Expected one of {valid_options} but got {config_value}.' + ) + + +class UnsupportedServiceProtocolsError(BotoCoreError): + """Error when a service does not use any protocol supported by botocore.""" + + fmt = ( + 'Botocore supports {botocore_supported_protocols}, but service {service} only ' + 'supports {service_supported_protocols}.' + ) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/handlers.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/handlers.py new file mode 100644 index 0000000000000000000000000000000000000000..65f12db705f96720c3a41cd24a05920d9e7c270d --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/handlers.py @@ -0,0 +1,1727 @@ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. + +"""Builtin event handlers. + +This module contains builtin handlers for events emitted by botocore. +""" + +import base64 +import copy +import logging +import os +import re +import uuid +import warnings +from io import BytesIO + +import botocore +import botocore.auth +from botocore import ( + retryhandler, # noqa: F401 + translate, # noqa: F401 + utils, +) +from botocore.args import ClientConfigString +from botocore.compat import ( + MD5_AVAILABLE, # noqa: F401 + ETree, + OrderedDict, + XMLParseError, + ensure_bytes, + get_md5, + json, + quote, + unquote, + unquote_str, + urlsplit, + urlunsplit, +) +from botocore.docs.utils import ( + AppendParamDocumentation, + AutoPopulatedParam, + HideParamFromOperations, +) +from botocore.endpoint_provider import VALID_HOST_LABEL_RE +from botocore.exceptions import ( + AliasConflictParameterError, + MissingServiceIdError, # noqa: F401 + ParamValidationError, + UnsupportedTLSVersionWarning, +) +from botocore.regions import EndpointResolverBuiltins +from botocore.serialize import TIMESTAMP_PRECISION_MILLISECOND +from botocore.signers import ( + add_dsql_generate_db_auth_token_methods, + add_generate_db_auth_token, + add_generate_presigned_post, + add_generate_presigned_url, +) +from botocore.useragent import register_feature_id +from botocore.utils import ( + SAFE_CHARS, + SERVICE_NAME_ALIASES, # noqa: F401 + ArnParser, + get_token_from_environment, + hyphenize_service_id, # noqa: F401 + is_global_accesspoint, # noqa: F401 + percent_encode, + switch_host_with_param, +) + +logger = logging.getLogger(__name__) + +REGISTER_FIRST = object() +REGISTER_LAST = object() +# From the S3 docs: +# The rules for bucket names in the US Standard region allow bucket names +# to be as long as 255 characters, and bucket names can contain any +# combination of uppercase letters, lowercase letters, numbers, periods +# (.), hyphens (-), and underscores (_). +VALID_BUCKET = re.compile(r'^[a-zA-Z0-9.\-_]{1,255}$') +_ACCESSPOINT_ARN = ( + r'^arn:(aws).*:(s3|s3-object-lambda):[a-z\-0-9]*:[0-9]{12}:accesspoint[/:]' + r'[a-zA-Z0-9\-.]{1,63}$' +) +_OUTPOST_ARN = ( + r'^arn:(aws).*:s3-outposts:[a-z\-0-9]+:[0-9]{12}:outpost[/:]' + r'[a-zA-Z0-9\-]{1,63}[/:]accesspoint[/:][a-zA-Z0-9\-]{1,63}$' +) +VALID_S3_ARN = re.compile('|'.join([_ACCESSPOINT_ARN, _OUTPOST_ARN])) +# signing names used for the services s3 and s3-control, for example in +# botocore/data/s3/2006-03-01/endpoints-rule-set-1.json +S3_SIGNING_NAMES = ('s3', 's3-outposts', 's3-object-lambda', 's3express') +VERSION_ID_SUFFIX = re.compile(r'\?versionId=[^\s]+$') + + +def handle_service_name_alias(service_name, **kwargs): + return SERVICE_NAME_ALIASES.get(service_name, service_name) + + +def add_recursion_detection_header(params, **kwargs): + has_lambda_name = 'AWS_LAMBDA_FUNCTION_NAME' in os.environ + trace_id = os.environ.get('_X_AMZN_TRACE_ID') + if has_lambda_name and trace_id: + headers = params['headers'] + if 'X-Amzn-Trace-Id' not in headers: + headers['X-Amzn-Trace-Id'] = quote(trace_id, safe='-=;:+&[]{}"\',') + + +def escape_xml_payload(params, **kwargs): + # Replace \r and \n with the escaped sequence over the whole XML document + # to avoid linebreak normalization modifying customer input when the + # document is parsed. Ideally, we would do this in ElementTree.tostring, + # but it doesn't allow us to override entity escaping for text fields. For + # this operation \r and \n can only appear in the XML document if they were + # passed as part of the customer input. + body = params['body'] + if b'\r' in body: + body = body.replace(b'\r', b' ') + if b'\n' in body: + body = body.replace(b'\n', b' ') + + params['body'] = body + + +def check_for_200_error(response, **kwargs): + """This function has been deprecated, but is kept for backwards compatibility.""" + # From: http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectCOPY.html + # There are two opportunities for a copy request to return an error. One + # can occur when Amazon S3 receives the copy request and the other can + # occur while Amazon S3 is copying the files. If the error occurs before + # the copy operation starts, you receive a standard Amazon S3 error. If the + # error occurs during the copy operation, the error response is embedded in + # the 200 OK response. This means that a 200 OK response can contain either + # a success or an error. Make sure to design your application to parse the + # contents of the response and handle it appropriately. + # + # So this handler checks for this case. Even though the server sends a + # 200 response, conceptually this should be handled exactly like a + # 500 response (with respect to raising exceptions, retries, etc.) + # We're connected *before* all the other retry logic handlers, so as long + # as we switch the error code to 500, we'll retry the error as expected. + if response is None: + # A None response can happen if an exception is raised while + # trying to retrieve the response. See Endpoint._get_response(). + return + http_response, parsed = response + if _looks_like_special_case_error( + http_response.status_code, http_response.content + ): + logger.debug( + "Error found for response with 200 status code, " + "errors: %s, changing status code to " + "500.", + parsed, + ) + http_response.status_code = 500 + + +def _looks_like_special_case_error(status_code, body): + if status_code == 200 and body: + try: + parser = ETree.XMLParser( + target=ETree.TreeBuilder(), encoding='utf-8' + ) + parser.feed(body) + root = parser.close() + except XMLParseError: + # In cases of network disruptions, we may end up with a partial + # streamed response from S3. We need to treat these cases as + # 500 Service Errors and try again. + return True + if root.tag == 'Error': + return True + return False + + +def set_operation_specific_signer(context, signing_name, **kwargs): + """Choose the operation-specific signer. + + Individual operations may have a different auth type than the service as a + whole. This will most often manifest as operations that should not be + authenticated at all, but can include other auth modes such as sigv4 + without body signing. + """ + auth_type = context.get('auth_type') + + # Auth type will be None if the operation doesn't have a configured auth + # type. + if not auth_type: + return + + # Auth type will be the string value 'none' if the operation should not + # be signed at all. + if auth_type == 'none': + return botocore.UNSIGNED + + if auth_type == 'bearer': + return 'bearer' + + # If the operation needs an unsigned body, we set additional context + # allowing the signer to be aware of this. + if context.get('unsigned_payload') or auth_type == 'v4-unsigned-body': + context['payload_signing_enabled'] = False + + if auth_type.startswith('v4'): + if auth_type == 'v4-s3express': + return auth_type + + if auth_type == 'v4a': + # If sigv4a is chosen, we must add additional signing config for + # global signature. + region = _resolve_sigv4a_region(context) + signing = {'region': region, 'signing_name': signing_name} + if 'signing' in context: + context['signing'].update(signing) + else: + context['signing'] = signing + signature_version = 'v4a' + else: + signature_version = 'v4' + + # Signing names used by s3 and s3-control use customized signers "s3v4" + # and "s3v4a". + if signing_name in S3_SIGNING_NAMES: + signature_version = f's3{signature_version}' + + return signature_version + + +def _handle_sqs_compatible_error(parsed, context, **kwargs): + """ + Ensures backward compatibility for SQS errors. + + SQS's migration from the Query protocol to JSON was done prior to SDKs allowing a + service to support multiple protocols. Because of this, SQS is missing the "error" + key from its modeled exceptions, which is used by most query compatible services + to map error codes to the proper exception. Instead, SQS uses the error's shape name, + which is preserved in the QueryErrorCode key. + """ + parsed_error = parsed.get("Error", {}) + if not parsed_error: + return + + if query_code := parsed_error.get("QueryErrorCode"): + context['error_code_override'] = query_code + + +def _resolve_sigv4a_region(context): + region = None + if 'client_config' in context: + region = context['client_config'].sigv4a_signing_region_set + if not region and context.get('signing', {}).get('region'): + region = context['signing']['region'] + return region or '*' + + +def decode_console_output(parsed, **kwargs): + if 'Output' in parsed: + try: + # We're using 'replace' for errors because it is + # possible that console output contains non string + # chars we can't utf-8 decode. + value = base64.b64decode( + bytes(parsed['Output'], 'latin-1') + ).decode('utf-8', 'replace') + parsed['Output'] = value + except (ValueError, TypeError, AttributeError): + logger.debug('Error decoding base64', exc_info=True) + + +def generate_idempotent_uuid(params, model, **kwargs): + for name in model.idempotent_members: + if name not in params: + params[name] = str(uuid.uuid4()) + logger.debug( + "injecting idempotency token (%s) into param '%s'.", + params[name], + name, + ) + + +def decode_quoted_jsondoc(value): + try: + value = json.loads(unquote(value)) + except (ValueError, TypeError): + logger.debug('Error loading quoted JSON', exc_info=True) + return value + + +def json_decode_template_body(parsed, **kwargs): + if 'TemplateBody' in parsed: + try: + value = json.loads( + parsed['TemplateBody'], object_pairs_hook=OrderedDict + ) + parsed['TemplateBody'] = value + except (ValueError, TypeError): + logger.debug('error loading JSON', exc_info=True) + + +def validate_bucket_name(params, **kwargs): + if 'Bucket' not in params: + return + bucket = params['Bucket'] + if not VALID_BUCKET.search(bucket) and not VALID_S3_ARN.search(bucket): + error_msg = ( + f'Invalid bucket name "{bucket}": Bucket name must match ' + f'the regex "{VALID_BUCKET.pattern}" or be an ARN matching ' + f'the regex "{VALID_S3_ARN.pattern}"' + ) + raise ParamValidationError(report=error_msg) + + +def sse_md5(params, **kwargs): + """ + S3 server-side encryption requires the encryption key to be sent to the + server base64 encoded, as well as a base64-encoded MD5 hash of the + encryption key. This handler does both if the MD5 has not been set by + the caller. + """ + _sse_md5(params, 'SSECustomer') + + +def copy_source_sse_md5(params, **kwargs): + """ + S3 server-side encryption requires the encryption key to be sent to the + server base64 encoded, as well as a base64-encoded MD5 hash of the + encryption key. This handler does both if the MD5 has not been set by + the caller specifically if the parameter is for the copy-source sse-c key. + """ + _sse_md5(params, 'CopySourceSSECustomer') + + +def _sse_md5(params, sse_member_prefix='SSECustomer'): + if not _needs_s3_sse_customization(params, sse_member_prefix): + return + + sse_key_member = sse_member_prefix + 'Key' + sse_md5_member = sse_member_prefix + 'KeyMD5' + key_as_bytes = params[sse_key_member] + if isinstance(key_as_bytes, str): + key_as_bytes = key_as_bytes.encode('utf-8') + md5_val = get_md5(key_as_bytes, usedforsecurity=False).digest() + key_md5_str = base64.b64encode(md5_val).decode('utf-8') + key_b64_encoded = base64.b64encode(key_as_bytes).decode('utf-8') + params[sse_key_member] = key_b64_encoded + params[sse_md5_member] = key_md5_str + + +def _needs_s3_sse_customization(params, sse_member_prefix): + return ( + params.get(sse_member_prefix + 'Key') is not None + and sse_member_prefix + 'KeyMD5' not in params + ) + + +def disable_signing(**kwargs): + """ + This handler disables request signing by setting the signer + name to a special sentinel value. + """ + return botocore.UNSIGNED + + +def add_expect_header(model, params, **kwargs): + if model.http.get('method', '') not in ['PUT', 'POST']: + return + if 'body' in params: + body = params['body'] + if hasattr(body, 'read'): + check_body = utils.ensure_boolean( + os.environ.get( + 'BOTO_EXPERIMENTAL__NO_EMPTY_CONTINUE', + False, + ) + ) + if check_body and utils.determine_content_length(body) == 0: + return + # Any file like object will use an expect 100-continue + # header regardless of size. + logger.debug("Adding expect 100 continue header to request.") + params['headers']['Expect'] = '100-continue' + + +class DeprecatedServiceDocumenter: + def __init__(self, replacement_service_name): + self._replacement_service_name = replacement_service_name + + def inject_deprecation_notice(self, section, event_name, **kwargs): + section.style.start_important() + section.write('This service client is deprecated. Please use ') + section.style.ref( + self._replacement_service_name, + self._replacement_service_name, + ) + section.write(' instead.') + section.style.end_important() + + +def document_copy_source_form(section, event_name, **kwargs): + if 'request-example' in event_name: + parent = section.get_section('structure-value') + param_line = parent.get_section('CopySource') + value_portion = param_line.get_section('member-value') + value_portion.clear_text() + value_portion.write( + "'string' or {'Bucket': 'string', " + "'Key': 'string', 'VersionId': 'string'}" + ) + elif 'request-params' in event_name: + param_section = section.get_section('CopySource') + type_section = param_section.get_section('param-type') + type_section.clear_text() + type_section.write(':type CopySource: str or dict') + doc_section = param_section.get_section('param-documentation') + doc_section.clear_text() + doc_section.write( + "The name of the source bucket, key name of the source object, " + "and optional version ID of the source object. You can either " + "provide this value as a string or a dictionary. The " + "string form is {bucket}/{key} or " + "{bucket}/{key}?versionId={versionId} if you want to copy a " + "specific version. You can also provide this value as a " + "dictionary. The dictionary format is recommended over " + "the string format because it is more explicit. The dictionary " + "format is: {'Bucket': 'bucket', 'Key': 'key', 'VersionId': 'id'}." + " Note that the VersionId key is optional and may be omitted." + " To specify an S3 access point, provide the access point" + " ARN for the ``Bucket`` key in the copy source dictionary. If you" + " want to provide the copy source for an S3 access point as a" + " string instead of a dictionary, the ARN provided must be the" + " full S3 access point object ARN" + " (i.e. {accesspoint_arn}/object/{key})" + ) + + +def handle_copy_source_param(params, **kwargs): + """Convert CopySource param for CopyObject/UploadPartCopy. + + This handler will deal with two cases: + + * CopySource provided as a string. We'll make a best effort + to URL encode the key name as required. This will require + parsing the bucket and version id from the CopySource value + and only encoding the key. + * CopySource provided as a dict. In this case we're + explicitly given the Bucket, Key, and VersionId so we're + able to encode the key and ensure this value is serialized + and correctly sent to S3. + + """ + source = params.get('CopySource') + if source is None: + # The call will eventually fail but we'll let the + # param validator take care of this. It will + # give a better error message. + return + if isinstance(source, str): + params['CopySource'] = _quote_source_header(source) + elif isinstance(source, dict): + params['CopySource'] = _quote_source_header_from_dict(source) + + +def _quote_source_header_from_dict(source_dict): + try: + bucket = source_dict['Bucket'] + key = source_dict['Key'] + version_id = source_dict.get('VersionId') + if VALID_S3_ARN.search(bucket): + final = f'{bucket}/object/{key}' + else: + final = f'{bucket}/{key}' + except KeyError as e: + raise ParamValidationError( + report=f'Missing required parameter: {str(e)}' + ) + final = percent_encode(final, safe=SAFE_CHARS + '/') + if version_id is not None: + final += f'?versionId={version_id}' + return final + + +def _quote_source_header(value): + result = VERSION_ID_SUFFIX.search(value) + if result is None: + return percent_encode(value, safe=SAFE_CHARS + '/') + else: + first, version_id = value[: result.start()], value[result.start() :] + return percent_encode(first, safe=SAFE_CHARS + '/') + version_id + + +def _get_cross_region_presigned_url( + request_signer, request_dict, model, source_region, destination_region +): + # The better way to do this is to actually get the + # endpoint_resolver and get the endpoint_url given the + # source region. In this specific case, we know that + # we can safely replace the dest region with the source + # region because of the supported EC2 regions, but in + # general this is not a safe assumption to make. + # I think eventually we should try to plumb through something + # that allows us to resolve endpoints from regions. + request_dict_copy = copy.deepcopy(request_dict) + request_dict_copy['body']['DestinationRegion'] = destination_region + request_dict_copy['url'] = request_dict['url'].replace( + destination_region, source_region + ) + request_dict_copy['method'] = 'GET' + request_dict_copy['headers'] = {} + return request_signer.generate_presigned_url( + request_dict_copy, region_name=source_region, operation_name=model.name + ) + + +def _get_presigned_url_source_and_destination_regions(request_signer, params): + # Gets the source and destination regions to be used + destination_region = request_signer._region_name + source_region = params.get('SourceRegion') + return source_region, destination_region + + +def inject_presigned_url_ec2(params, request_signer, model, **kwargs): + # The customer can still provide this, so we should pass if they do. + if 'PresignedUrl' in params['body']: + return + src, dest = _get_presigned_url_source_and_destination_regions( + request_signer, params['body'] + ) + url = _get_cross_region_presigned_url( + request_signer, params, model, src, dest + ) + params['body']['PresignedUrl'] = url + # EC2 Requires that the destination region be sent over the wire in + # addition to the source region. + params['body']['DestinationRegion'] = dest + + +def inject_presigned_url_rds(params, request_signer, model, **kwargs): + # SourceRegion is not required for RDS operations, so it's possible that + # it isn't set. In that case it's probably a local copy so we don't need + # to do anything else. + if 'SourceRegion' not in params['body']: + return + + src, dest = _get_presigned_url_source_and_destination_regions( + request_signer, params['body'] + ) + + # Since SourceRegion isn't actually modeled for RDS, it needs to be + # removed from the request params before we send the actual request. + del params['body']['SourceRegion'] + + if 'PreSignedUrl' in params['body']: + return + + url = _get_cross_region_presigned_url( + request_signer, params, model, src, dest + ) + params['body']['PreSignedUrl'] = url + + +def json_decode_policies(parsed, model, **kwargs): + # Any time an IAM operation returns a policy document + # it is a string that is json that has been urlencoded, + # i.e urlencode(json.dumps(policy_document)). + # To give users something more useful, we will urldecode + # this value and json.loads() the result so that they have + # the policy document as a dictionary. + output_shape = model.output_shape + if output_shape is not None: + _decode_policy_types(parsed, model.output_shape) + + +def _decode_policy_types(parsed, shape): + # IAM consistently uses the policyDocumentType shape to indicate + # strings that have policy documents. + shape_name = 'policyDocumentType' + if shape.type_name == 'structure': + for member_name, member_shape in shape.members.items(): + if ( + member_shape.type_name == 'string' + and member_shape.name == shape_name + and member_name in parsed + ): + parsed[member_name] = decode_quoted_jsondoc( + parsed[member_name] + ) + elif member_name in parsed: + _decode_policy_types(parsed[member_name], member_shape) + if shape.type_name == 'list': + shape_member = shape.member + for item in parsed: + _decode_policy_types(item, shape_member) + + +def parse_get_bucket_location(parsed, http_response, **kwargs): + # s3.GetBucketLocation cannot be modeled properly. To + # account for this we just manually parse the XML document. + # The "parsed" passed in only has the ResponseMetadata + # filled out. This handler will fill in the LocationConstraint + # value. + if http_response.raw is None: + return + response_body = http_response.content + parser = ETree.XMLParser(target=ETree.TreeBuilder(), encoding='utf-8') + parser.feed(response_body) + root = parser.close() + region = root.text + parsed['LocationConstraint'] = region + + +def base64_encode_user_data(params, **kwargs): + if 'UserData' in params: + if isinstance(params['UserData'], str): + # Encode it to bytes if it is text. + params['UserData'] = params['UserData'].encode('utf-8') + params['UserData'] = base64.b64encode(params['UserData']).decode( + 'utf-8' + ) + + +def document_base64_encoding(param): + description = ( + '**This value will be base64 encoded automatically. Do ' + 'not base64 encode this value prior to performing the ' + 'operation.**' + ) + append = AppendParamDocumentation(param, description) + return append.append_documentation + + +def validate_ascii_metadata(params, **kwargs): + """Verify S3 Metadata only contains ascii characters. + + From: http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingMetadata.html + + "Amazon S3 stores user-defined metadata in lowercase. Each name, value pair + must conform to US-ASCII when using REST and UTF-8 when using SOAP or + browser-based uploads via POST." + + """ + metadata = params.get('Metadata') + if not metadata or not isinstance(metadata, dict): + # We have to at least type check the metadata as a dict type + # because this handler is called before param validation. + # We'll go ahead and return because the param validator will + # give a descriptive error message for us. + # We might need a post-param validation event. + return + for key, value in metadata.items(): + try: + key.encode('ascii') + value.encode('ascii') + except UnicodeEncodeError: + error_msg = ( + 'Non ascii characters found in S3 metadata ' + f'for key "{key}", value: "{value}". \nS3 metadata can only ' + 'contain ASCII characters. ' + ) + raise ParamValidationError(report=error_msg) + + +def fix_route53_ids(params, model, **kwargs): + """ + Check for and split apart Route53 resource IDs, setting + only the last piece. This allows the output of one operation + (e.g. ``'foo/1234'``) to be used as input in another + operation (e.g. it expects just ``'1234'``). + """ + input_shape = model.input_shape + if not input_shape or not hasattr(input_shape, 'members'): + return + + members = [ + name + for (name, shape) in input_shape.members.items() + if shape.name in ['ResourceId', 'DelegationSetId', 'ChangeId'] + ] + + for name in members: + if name in params: + orig_value = params[name] + params[name] = orig_value.split('/')[-1] + logger.debug('%s %s -> %s', name, orig_value, params[name]) + + +def inject_account_id(params, **kwargs): + if params.get('accountId') is None: + # Glacier requires accountId, but allows you + # to specify '-' for the current owners account. + # We add this default value if the user does not + # provide the accountId as a convenience. + params['accountId'] = '-' + + +def add_glacier_version(model, params, **kwargs): + request_dict = params + request_dict['headers']['x-amz-glacier-version'] = model.metadata[ + 'apiVersion' + ] + + +def add_accept_header(model, params, **kwargs): + if params['headers'].get('Accept', None) is None: + request_dict = params + request_dict['headers']['Accept'] = 'application/json' + + +def add_glacier_checksums(params, **kwargs): + """Add glacier checksums to the http request. + + This will add two headers to the http request: + + * x-amz-content-sha256 + * x-amz-sha256-tree-hash + + These values will only be added if they are not present + in the HTTP request. + + """ + request_dict = params + headers = request_dict['headers'] + body = request_dict['body'] + if isinstance(body, bytes): + # If the user provided a bytes type instead of a file + # like object, we're temporarily create a BytesIO object + # so we can use the util functions to calculate the + # checksums which assume file like objects. Note that + # we're not actually changing the body in the request_dict. + body = BytesIO(body) + starting_position = body.tell() + if 'x-amz-content-sha256' not in headers: + headers['x-amz-content-sha256'] = utils.calculate_sha256( + body, as_hex=True + ) + body.seek(starting_position) + if 'x-amz-sha256-tree-hash' not in headers: + headers['x-amz-sha256-tree-hash'] = utils.calculate_tree_hash(body) + body.seek(starting_position) + + +def document_glacier_tree_hash_checksum(): + doc = ''' + This is a required field. + + Ideally you will want to compute this value with checksums from + previous uploaded parts, using the algorithm described in + `Glacier documentation `_. + + But if you prefer, you can also use botocore.utils.calculate_tree_hash() + to compute it from raw file by:: + + checksum = calculate_tree_hash(open('your_file.txt', 'rb')) + + ''' + return AppendParamDocumentation('checksum', doc).append_documentation + + +def document_cloudformation_get_template_return_type( + section, event_name, **kwargs +): + if 'response-params' in event_name: + template_body_section = section.get_section('TemplateBody') + type_section = template_body_section.get_section('param-type') + type_section.clear_text() + type_section.write('(*dict*) --') + elif 'response-example' in event_name: + parent = section.get_section('structure-value') + param_line = parent.get_section('TemplateBody') + value_portion = param_line.get_section('member-value') + value_portion.clear_text() + value_portion.write('{}') + + +def switch_host_machinelearning(request, **kwargs): + switch_host_with_param(request, 'PredictEndpoint') + + +def check_openssl_supports_tls_version_1_2(**kwargs): + import ssl + + try: + openssl_version_tuple = ssl.OPENSSL_VERSION_INFO + if openssl_version_tuple < (1, 0, 1): + warnings.warn( + f'Currently installed openssl version: {ssl.OPENSSL_VERSION} does not ' + 'support TLS 1.2, which is required for use of iot-data. ' + 'Please use python installed with openssl version 1.0.1 or ' + 'higher.', + UnsupportedTLSVersionWarning, + ) + # We cannot check the openssl version on python2.6, so we should just + # pass on this conveniency check. + except AttributeError: + pass + + +def change_get_to_post(request, **kwargs): + # This is useful when we need to change a potentially large GET request + # into a POST with x-www-form-urlencoded encoding. + if request.method == 'GET' and '?' in request.url: + request.headers['Content-Type'] = 'application/x-www-form-urlencoded' + request.method = 'POST' + request.url, request.data = request.url.split('?', 1) + + +def set_list_objects_encoding_type_url(params, context, **kwargs): + if 'EncodingType' not in params: + # We set this context so that we know it wasn't the customer that + # requested the encoding. + context['encoding_type_auto_set'] = True + params['EncodingType'] = 'url' + + +def decode_list_object(parsed, context, **kwargs): + # This is needed because we are passing url as the encoding type. Since the + # paginator is based on the key, we need to handle it before it can be + # round tripped. + # + # From the documentation: If you specify encoding-type request parameter, + # Amazon S3 includes this element in the response, and returns encoded key + # name values in the following response elements: + # Delimiter, Marker, Prefix, NextMarker, Key. + _decode_list_object( + top_level_keys=['Delimiter', 'Marker', 'NextMarker'], + nested_keys=[('Contents', 'Key'), ('CommonPrefixes', 'Prefix')], + parsed=parsed, + context=context, + ) + + +def decode_list_object_v2(parsed, context, **kwargs): + # From the documentation: If you specify encoding-type request parameter, + # Amazon S3 includes this element in the response, and returns encoded key + # name values in the following response elements: + # Delimiter, Prefix, ContinuationToken, Key, and StartAfter. + _decode_list_object( + top_level_keys=['Delimiter', 'Prefix', 'StartAfter'], + nested_keys=[('Contents', 'Key'), ('CommonPrefixes', 'Prefix')], + parsed=parsed, + context=context, + ) + + +def decode_list_object_versions(parsed, context, **kwargs): + # From the documentation: If you specify encoding-type request parameter, + # Amazon S3 includes this element in the response, and returns encoded key + # name values in the following response elements: + # KeyMarker, NextKeyMarker, Prefix, Key, and Delimiter. + _decode_list_object( + top_level_keys=[ + 'KeyMarker', + 'NextKeyMarker', + 'Prefix', + 'Delimiter', + ], + nested_keys=[ + ('Versions', 'Key'), + ('DeleteMarkers', 'Key'), + ('CommonPrefixes', 'Prefix'), + ], + parsed=parsed, + context=context, + ) + + +def _decode_list_object(top_level_keys, nested_keys, parsed, context): + if parsed.get('EncodingType') == 'url' and context.get( + 'encoding_type_auto_set' + ): + # URL decode top-level keys in the response if present. + for key in top_level_keys: + if key in parsed: + parsed[key] = unquote_str(parsed[key]) + # URL decode nested keys from the response if present. + for top_key, child_key in nested_keys: + if top_key in parsed: + for member in parsed[top_key]: + member[child_key] = unquote_str(member[child_key]) + + +def convert_body_to_file_like_object(params, **kwargs): + if 'Body' in params: + if isinstance(params['Body'], str): + params['Body'] = BytesIO(ensure_bytes(params['Body'])) + elif isinstance(params['Body'], bytes): + params['Body'] = BytesIO(params['Body']) + + +def _add_parameter_aliases(handler_list): + # Mapping of original parameter to parameter alias. + # The key is ..parameter + # The first part of the key is used for event registration. + # The last part is the original parameter name and the value is the + # alias to expose in documentation. + aliases = { + 'ec2.*.Filter': 'Filters', + 'logs.CreateExportTask.from': 'fromTime', + 'cloudsearchdomain.Search.return': 'returnFields', + } + + for original, new_name in aliases.items(): + event_portion, original_name = original.rsplit('.', 1) + parameter_alias = ParameterAlias(original_name, new_name) + + # Add the handlers to the list of handlers. + # One handler is to handle when users provide the alias. + # The other handler is to update the documentation to show only + # the alias. + parameter_build_event_handler_tuple = ( + 'before-parameter-build.' + event_portion, + parameter_alias.alias_parameter_in_call, + REGISTER_FIRST, + ) + docs_event_handler_tuple = ( + 'docs.*.' + event_portion + '.complete-section', + parameter_alias.alias_parameter_in_documentation, + ) + handler_list.append(parameter_build_event_handler_tuple) + handler_list.append(docs_event_handler_tuple) + + +class ParameterAlias: + def __init__(self, original_name, alias_name): + self._original_name = original_name + self._alias_name = alias_name + + def alias_parameter_in_call(self, params, model, **kwargs): + if model.input_shape: + # Only consider accepting the alias if it is modeled in the + # input shape. + if self._original_name in model.input_shape.members: + if self._alias_name in params: + if self._original_name in params: + raise AliasConflictParameterError( + original=self._original_name, + alias=self._alias_name, + operation=model.name, + ) + # Remove the alias parameter value and use the old name + # instead. + params[self._original_name] = params.pop(self._alias_name) + + def alias_parameter_in_documentation(self, event_name, section, **kwargs): + if event_name.startswith('docs.request-params'): + if self._original_name not in section.available_sections: + return + # Replace the name for parameter type + param_section = section.get_section(self._original_name) + param_type_section = param_section.get_section('param-type') + self._replace_content(param_type_section) + + # Replace the name for the parameter description + param_name_section = param_section.get_section('param-name') + self._replace_content(param_name_section) + elif event_name.startswith('docs.request-example'): + section = section.get_section('structure-value') + if self._original_name not in section.available_sections: + return + # Replace the name for the example + param_section = section.get_section(self._original_name) + self._replace_content(param_section) + + def _replace_content(self, section): + content = section.getvalue().decode('utf-8') + updated_content = content.replace( + self._original_name, self._alias_name + ) + section.clear_text() + section.write(updated_content) + + +class ClientMethodAlias: + def __init__(self, actual_name): + """Aliases a non-extant method to an existing method. + + :param actual_name: The name of the method that actually exists on + the client. + """ + self._actual = actual_name + + def __call__(self, client, **kwargs): + return getattr(client, self._actual) + + +# TODO: Remove this class as it is no longer used +class HeaderToHostHoister: + """Takes a header and moves it to the front of the hoststring.""" + + _VALID_HOSTNAME = re.compile(r'(?!-)[a-z\d-]{1,63}(? 1 and ArnParser.is_arn( + unquote(auth_path_parts[1]) + ): + request.auth_path = '/'.join(['', *auth_path_parts[2:]]) + + +def customize_endpoint_resolver_builtins( + builtins, model, params, context, **kwargs +): + """Modify builtin parameter values for endpoint resolver + + Modifies the builtins dict in place. Changes are in effect for one call. + The corresponding event is emitted only if at least one builtin parameter + value is required for endpoint resolution for the operation. + """ + bucket_name = params.get('Bucket') + bucket_is_arn = bucket_name is not None and ArnParser.is_arn(bucket_name) + # In some situations the host will return AuthorizationHeaderMalformed + # when the signing region of a sigv4 request is not the bucket's + # region (which is likely unknown by the user of GetBucketLocation). + # Avoid this by always using path-style addressing. + if model.name == 'GetBucketLocation': + builtins[EndpointResolverBuiltins.AWS_S3_FORCE_PATH_STYLE] = True + # All situations where the bucket name is an ARN are not compatible + # with path style addressing. + elif bucket_is_arn: + builtins[EndpointResolverBuiltins.AWS_S3_FORCE_PATH_STYLE] = False + + # Bucket names that are invalid host labels require path-style addressing. + # If path-style addressing was specifically requested, the default builtin + # value is already set. + path_style_required = ( + bucket_name is not None and not VALID_HOST_LABEL_RE.match(bucket_name) + ) + path_style_requested = builtins[ + EndpointResolverBuiltins.AWS_S3_FORCE_PATH_STYLE + ] + + # Path-style addressing is incompatible with the global endpoint for + # presigned URLs. If the bucket name is an ARN, the ARN's region should be + # used in the endpoint. + if ( + context.get('use_global_endpoint') + and not path_style_required + and not path_style_requested + and not bucket_is_arn + and not utils.is_s3express_bucket(bucket_name) + ): + builtins[EndpointResolverBuiltins.AWS_REGION] = 'aws-global' + builtins[EndpointResolverBuiltins.AWS_S3_USE_GLOBAL_ENDPOINT] = True + + +def remove_content_type_header_for_presigning(request, **kwargs): + if ( + request.context.get('is_presign_request') is True + and 'Content-Type' in request.headers + ): + del request.headers['Content-Type'] + + +def handle_expires_header( + operation_model, response_dict, customized_response_dict, **kwargs +): + if _has_expires_shape(operation_model.output_shape): + if expires_value := response_dict.get('headers', {}).get('Expires'): + customized_response_dict['ExpiresString'] = expires_value + try: + utils.parse_timestamp(expires_value) + except (ValueError, RuntimeError): + logger.warning( + 'Failed to parse the "Expires" member as a timestamp: %s. ' + 'The unparsed value is available in the response under "ExpiresString".', + expires_value, + ) + del response_dict['headers']['Expires'] + + +def _has_expires_shape(shape): + if not shape: + return False + return any( + member_shape.name == 'Expires' + and member_shape.serialization.get('name') == 'Expires' + for member_shape in shape.members.values() + ) + + +def document_expires_shape(section, event_name, **kwargs): + # Updates the documentation for S3 operations that include the 'Expires' member + # in their response structure. Documents a synthetic member 'ExpiresString' and + # includes a deprecation notice for 'Expires'. + if 'response-example' in event_name: + if not section.has_section('structure-value'): + return + parent = section.get_section('structure-value') + if not parent.has_section('Expires'): + return + param_line = parent.get_section('Expires') + param_line.add_new_section('ExpiresString') + new_param_line = param_line.get_section('ExpiresString') + new_param_line.write("'ExpiresString': 'string',") + new_param_line.style.new_line() + elif 'response-params' in event_name: + if not section.has_section('Expires'): + return + param_section = section.get_section('Expires') + # Add a deprecation notice for the "Expires" param + doc_section = param_section.get_section('param-documentation') + doc_section.style.start_note() + doc_section.write( + 'This member has been deprecated. Please use ``ExpiresString`` instead.' + ) + doc_section.style.end_note() + # Document the "ExpiresString" param + new_param_section = param_section.add_new_section('ExpiresString') + new_param_section.style.new_paragraph() + new_param_section.write('- **ExpiresString** *(string) --*') + new_param_section.style.indent() + new_param_section.style.new_paragraph() + new_param_section.write( + 'The raw, unparsed value of the ``Expires`` field.' + ) + + +def _handle_200_error(operation_model, response_dict, **kwargs): + # S3 can return a 200 response with an error embedded in the body. + # Convert the 200 to a 500 for retry resolution in ``_update_status_code``. + if not _should_handle_200_error(operation_model, response_dict): + # Operations with streaming response blobs are excluded as they + # can't be reliably distinguished from an S3 error. + return + if _looks_like_special_case_error( + response_dict['status_code'], response_dict['body'] + ): + response_dict['status_code'] = 500 + logger.debug( + "Error found for response with 200 status code: %s.", + response_dict['body'], + ) + + +def _should_handle_200_error(operation_model, response_dict): + output_shape = operation_model.output_shape + if ( + not response_dict + or operation_model.has_event_stream_output + or not output_shape + ): + return False + payload = output_shape.serialization.get('payload') + if payload is not None: + payload_shape = output_shape.members[payload] + if payload_shape.type_name in ('blob', 'string'): + return False + return True + + +def _update_status_code(response, **kwargs): + # Update the http_response status code when the parsed response has been + # modified in a handler. This enables retries for cases like ``_handle_200_error``. + if response is None: + return + http_response, parsed = response + parsed_status_code = parsed.get('ResponseMetadata', {}).get( + 'HTTPStatusCode', http_response.status_code + ) + if http_response.status_code != parsed_status_code: + http_response.status_code = parsed_status_code + + +def _handle_request_validation_mode_member(params, model, **kwargs): + client_config = kwargs.get("context", {}).get("client_config") + if client_config is None: + return + response_checksum_validation = client_config.response_checksum_validation + http_checksum = model.http_checksum + mode_member = http_checksum.get("requestValidationModeMember") + if ( + mode_member is not None + and response_checksum_validation == "when_supported" + ): + params.setdefault(mode_member, "ENABLED") + + +def _set_extra_headers_for_unsigned_request( + request, signature_version, **kwargs +): + # When sending a checksum in the trailer of an unsigned chunked request, S3 + # requires us to set the "X-Amz-Content-SHA256" header to "STREAMING-UNSIGNED-PAYLOAD-TRAILER". + checksum_context = request.context.get("checksum", {}) + algorithm = checksum_context.get("request_algorithm", {}) + in_trailer = algorithm.get("in") == "trailer" + headers = request.headers + if signature_version == botocore.UNSIGNED and in_trailer: + headers["X-Amz-Content-SHA256"] = "STREAMING-UNSIGNED-PAYLOAD-TRAILER" + + +def _set_auth_scheme_preference_signer(context, signing_name, **kwargs): + """ + Determines the appropriate signer to use based on the client configuration, + authentication scheme preferences, and the availability of a bearer token. + """ + client_config = context.get('client_config') + if client_config is None: + return + + signature_version = client_config.signature_version + auth_scheme_preference = client_config.auth_scheme_preference + auth_options = context.get('auth_options') + + signature_version_set_in_code = ( + isinstance(signature_version, ClientConfigString) + or signature_version is botocore.UNSIGNED + ) + auth_preference_set_in_code = isinstance( + auth_scheme_preference, ClientConfigString + ) + has_in_code_configuration = ( + signature_version_set_in_code or auth_preference_set_in_code + ) + + resolved_signature_version = signature_version + + # If signature version was not set in code, but an auth scheme preference + # is available, resolve it based on the preferred schemes and supported auth + # options for this service. + if ( + not signature_version_set_in_code + and auth_scheme_preference + and auth_options + ): + preferred_schemes = auth_scheme_preference.split(',') + resolved = botocore.auth.resolve_auth_scheme_preference( + preferred_schemes, auth_options + ) + resolved_signature_version = ( + botocore.UNSIGNED if resolved == 'none' else resolved + ) + + # Prefer 'bearer' signature version if a bearer token is available, and it + # is allowed for this service. This can override earlier resolution if the + # config object didn't explicitly set a signature version. + if _should_prefer_bearer_auth( + has_in_code_configuration, + signing_name, + resolved_signature_version, + auth_options, + ): + register_feature_id('BEARER_SERVICE_ENV_VARS') + resolved_signature_version = 'bearer' + + if resolved_signature_version == signature_version: + return None + return resolved_signature_version + + +def _should_prefer_bearer_auth( + has_in_code_configuration, + signing_name, + resolved_signature_version, + auth_options, +): + if signing_name not in get_bearer_auth_supported_services(): + return False + + if not auth_options or 'smithy.api#httpBearerAuth' not in auth_options: + return False + + has_token = get_token_from_environment(signing_name) is not None + + # Prefer 'bearer' if a bearer token is available, and either: + # Bearer was already resolved, or + # No auth-related values were explicitly set in code + return has_token and ( + resolved_signature_version == 'bearer' or not has_in_code_configuration + ) + + +def get_bearer_auth_supported_services(): + """ + Returns a set of services that support bearer token authentication. + These values correspond to the service's `signingName` property as defined + in model.py, falling back to `endpointPrefix` if `signingName` is not set. + + Warning: This is a private interface and is subject to abrupt breaking changes, + including removal, in any botocore release. It is not intended for external use, + and its usage outside of botocore is not advised or supported. + """ + return {'bedrock'} + + +# This is a list of (event_name, handler). +# When a Session is created, everything in this list will be +# automatically registered with that Session. + +BUILTIN_HANDLERS = [ + ('choose-service-name', handle_service_name_alias), + ( + 'getattr.mturk.list_hi_ts_for_qualification_type', + ClientMethodAlias('list_hits_for_qualification_type'), + ), + ( + 'getattr.socialmessaging.delete_whatsapp_media_message', + ClientMethodAlias('delete_whatsapp_message_media'), + ), + ( + 'before-parameter-build.s3.UploadPart', + convert_body_to_file_like_object, + REGISTER_LAST, + ), + ( + 'before-parameter-build.s3.PutObject', + convert_body_to_file_like_object, + REGISTER_LAST, + ), + ('creating-client-class', add_generate_presigned_url), + ('creating-client-class.s3', add_generate_presigned_post), + ('creating-client-class.iot-data', check_openssl_supports_tls_version_1_2), + ('creating-client-class.lex-runtime-v2', remove_lex_v2_start_conversation), + ('creating-client-class.qbusiness', remove_qbusiness_chat), + ( + 'creating-client-class.bedrock-runtime', + remove_bedrock_runtime_invoke_model_with_bidirectional_stream, + ), + ( + 'creating-serializer.bedrock-agentcore', + enable_millisecond_timestamp_precision, + ), + ('after-call.iam', json_decode_policies), + ('after-call.ec2.GetConsoleOutput', decode_console_output), + ('after-call.cloudformation.GetTemplate', json_decode_template_body), + ('after-call.s3.GetBucketLocation', parse_get_bucket_location), + ( + 'after-call.sqs.*', + _handle_sqs_compatible_error, + ), + ('before-parse.s3.*', handle_expires_header), + ('before-parse.s3.*', _handle_200_error, REGISTER_FIRST), + ('before-parameter-build', generate_idempotent_uuid), + ('before-parameter-build', _handle_request_validation_mode_member), + ('before-parameter-build.s3', validate_bucket_name), + ('before-parameter-build.s3', remove_bucket_from_url_paths_from_model), + ( + 'before-parameter-build.s3.ListObjects', + set_list_objects_encoding_type_url, + ), + ( + 'before-parameter-build.s3.ListObjectsV2', + set_list_objects_encoding_type_url, + ), + ( + 'before-parameter-build.s3.ListObjectVersions', + set_list_objects_encoding_type_url, + ), + ('before-parameter-build.s3.CopyObject', handle_copy_source_param), + ('before-parameter-build.s3.UploadPartCopy', handle_copy_source_param), + ('before-parameter-build.s3.CopyObject', validate_ascii_metadata), + ('before-parameter-build.s3.PutObject', validate_ascii_metadata), + ( + 'before-parameter-build.s3.CreateMultipartUpload', + validate_ascii_metadata, + ), + ('before-parameter-build.s3-control', remove_accid_host_prefix_from_model), + ('docs.*.s3.CopyObject.complete-section', document_copy_source_form), + ('docs.*.s3.UploadPartCopy.complete-section', document_copy_source_form), + ('docs.response-example.s3.*.complete-section', document_expires_shape), + ('docs.response-params.s3.*.complete-section', document_expires_shape), + ('before-endpoint-resolution.s3', customize_endpoint_resolver_builtins), + ('before-call', add_recursion_detection_header), + ('before-call.s3', add_expect_header), + ('before-call.glacier', add_glacier_version), + ('before-call.apigateway', add_accept_header), + ('before-call.s3.DeleteObjects', escape_xml_payload), + ('before-call.s3.PutBucketLifecycleConfiguration', escape_xml_payload), + ('before-call.glacier.UploadArchive', add_glacier_checksums), + ('before-call.glacier.UploadMultipartPart', add_glacier_checksums), + ('before-call.ec2.CopySnapshot', inject_presigned_url_ec2), + ('request-created', add_retry_headers), + ('request-created.machinelearning.Predict', switch_host_machinelearning), + ('needs-retry.s3.*', _update_status_code, REGISTER_FIRST), + ('choose-signer.cognito-identity.GetId', disable_signing), + ('choose-signer.cognito-identity.GetOpenIdToken', disable_signing), + ('choose-signer.cognito-identity.UnlinkIdentity', disable_signing), + ( + 'choose-signer.cognito-identity.GetCredentialsForIdentity', + disable_signing, + ), + ('choose-signer.sts.AssumeRoleWithSAML', disable_signing), + ('choose-signer.sts.AssumeRoleWithWebIdentity', disable_signing), + ('choose-signer', set_operation_specific_signer), + ('choose-signer', _set_auth_scheme_preference_signer), + ('before-parameter-build.s3.HeadObject', sse_md5), + ('before-parameter-build.s3.GetObject', sse_md5), + ('before-parameter-build.s3.PutObject', sse_md5), + ('before-parameter-build.s3.CopyObject', sse_md5), + ('before-parameter-build.s3.CopyObject', copy_source_sse_md5), + ('before-parameter-build.s3.CreateMultipartUpload', sse_md5), + ('before-parameter-build.s3.UploadPart', sse_md5), + ('before-parameter-build.s3.UploadPartCopy', sse_md5), + ('before-parameter-build.s3.UploadPartCopy', copy_source_sse_md5), + ('before-parameter-build.s3.CompleteMultipartUpload', sse_md5), + ('before-parameter-build.s3.SelectObjectContent', sse_md5), + ('before-parameter-build.ec2.RunInstances', base64_encode_user_data), + ( + 'before-parameter-build.autoscaling.CreateLaunchConfiguration', + base64_encode_user_data, + ), + ('before-parameter-build.route53', fix_route53_ids), + ('before-parameter-build.glacier', inject_account_id), + ('before-sign.s3', remove_arn_from_signing_path), + ('before-sign.s3', _set_extra_headers_for_unsigned_request), + ( + 'before-sign.polly.SynthesizeSpeech', + remove_content_type_header_for_presigning, + ), + ('after-call.s3.ListObjects', decode_list_object), + ('after-call.s3.ListObjectsV2', decode_list_object_v2), + ('after-call.s3.ListObjectVersions', decode_list_object_versions), + # Cloudsearchdomain search operation will be sent by HTTP POST + ('request-created.cloudsearchdomain.Search', change_get_to_post), + # Glacier documentation customizations + ( + 'docs.*.glacier.*.complete-section', + AutoPopulatedParam( + 'accountId', + 'Note: this parameter is set to "-" by' + 'default if no value is not specified.', + ).document_auto_populated_param, + ), + ( + 'docs.*.glacier.UploadArchive.complete-section', + AutoPopulatedParam('checksum').document_auto_populated_param, + ), + ( + 'docs.*.glacier.UploadMultipartPart.complete-section', + AutoPopulatedParam('checksum').document_auto_populated_param, + ), + ( + 'docs.request-params.glacier.CompleteMultipartUpload.complete-section', + document_glacier_tree_hash_checksum(), + ), + # Cloudformation documentation customizations + ( + 'docs.*.cloudformation.GetTemplate.complete-section', + document_cloudformation_get_template_return_type, + ), + # UserData base64 encoding documentation customizations + ( + 'docs.*.ec2.RunInstances.complete-section', + document_base64_encoding('UserData'), + ), + ( + 'docs.*.autoscaling.CreateLaunchConfiguration.complete-section', + document_base64_encoding('UserData'), + ), + # EC2 CopySnapshot documentation customizations + ( + 'docs.*.ec2.CopySnapshot.complete-section', + AutoPopulatedParam('PresignedUrl').document_auto_populated_param, + ), + ( + 'docs.*.ec2.CopySnapshot.complete-section', + AutoPopulatedParam('DestinationRegion').document_auto_populated_param, + ), + # S3 SSE documentation modifications + ( + 'docs.*.s3.*.complete-section', + AutoPopulatedParam('SSECustomerKeyMD5').document_auto_populated_param, + ), + # S3 SSE Copy Source documentation modifications + ( + 'docs.*.s3.*.complete-section', + AutoPopulatedParam( + 'CopySourceSSECustomerKeyMD5' + ).document_auto_populated_param, + ), + # Add base64 information to Lambda + ( + 'docs.*.lambda.UpdateFunctionCode.complete-section', + document_base64_encoding('ZipFile'), + ), + # The following S3 operations cannot actually accept a ContentMD5 + ( + 'docs.*.s3.*.complete-section', + HideParamFromOperations( + 's3', + 'ContentMD5', + [ + 'DeleteObjects', + 'PutBucketAcl', + 'PutBucketCors', + 'PutBucketLifecycle', + 'PutBucketLogging', + 'PutBucketNotification', + 'PutBucketPolicy', + 'PutBucketReplication', + 'PutBucketRequestPayment', + 'PutBucketTagging', + 'PutBucketVersioning', + 'PutBucketWebsite', + 'PutObjectAcl', + ], + ).hide_param, + ), + ############# + # DSQL + ############# + ('creating-client-class.dsql', add_dsql_generate_db_auth_token_methods), + ############# + # RDS + ############# + ('creating-client-class.rds', add_generate_db_auth_token), + ('before-call.rds.CopyDBClusterSnapshot', inject_presigned_url_rds), + ('before-call.rds.CreateDBCluster', inject_presigned_url_rds), + ('before-call.rds.CopyDBSnapshot', inject_presigned_url_rds), + ('before-call.rds.CreateDBInstanceReadReplica', inject_presigned_url_rds), + ( + 'before-call.rds.StartDBInstanceAutomatedBackupsReplication', + inject_presigned_url_rds, + ), + # RDS PresignedUrl documentation customizations + ( + 'docs.*.rds.CopyDBClusterSnapshot.complete-section', + AutoPopulatedParam('PreSignedUrl').document_auto_populated_param, + ), + ( + 'docs.*.rds.CreateDBCluster.complete-section', + AutoPopulatedParam('PreSignedUrl').document_auto_populated_param, + ), + ( + 'docs.*.rds.CopyDBSnapshot.complete-section', + AutoPopulatedParam('PreSignedUrl').document_auto_populated_param, + ), + ( + 'docs.*.rds.CreateDBInstanceReadReplica.complete-section', + AutoPopulatedParam('PreSignedUrl').document_auto_populated_param, + ), + ( + 'docs.*.rds.StartDBInstanceAutomatedBackupsReplication.complete-section', + AutoPopulatedParam('PreSignedUrl').document_auto_populated_param, + ), + ############# + # Neptune + ############# + ('before-call.neptune.CopyDBClusterSnapshot', inject_presigned_url_rds), + ('before-call.neptune.CreateDBCluster', inject_presigned_url_rds), + # Neptune PresignedUrl documentation customizations + ( + 'docs.*.neptune.CopyDBClusterSnapshot.complete-section', + AutoPopulatedParam('PreSignedUrl').document_auto_populated_param, + ), + ( + 'docs.*.neptune.CreateDBCluster.complete-section', + AutoPopulatedParam('PreSignedUrl').document_auto_populated_param, + ), + ############# + # DocDB + ############# + ('before-call.docdb.CopyDBClusterSnapshot', inject_presigned_url_rds), + ('before-call.docdb.CreateDBCluster', inject_presigned_url_rds), + # DocDB PresignedUrl documentation customizations + ( + 'docs.*.docdb.CopyDBClusterSnapshot.complete-section', + AutoPopulatedParam('PreSignedUrl').document_auto_populated_param, + ), + ( + 'docs.*.docdb.CreateDBCluster.complete-section', + AutoPopulatedParam('PreSignedUrl').document_auto_populated_param, + ), + ('before-call', inject_api_version_header_if_needed), +] +_add_parameter_aliases(BUILTIN_HANDLERS) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/history.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/history.py new file mode 100644 index 0000000000000000000000000000000000000000..59d9481d7fb5ed48c737c6c835bd916a78aa3ff8 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/history.py @@ -0,0 +1,55 @@ +# Copyright 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import logging + +HISTORY_RECORDER = None +logger = logging.getLogger(__name__) + + +class BaseHistoryHandler: + def emit(self, event_type, payload, source): + raise NotImplementedError('emit()') + + +class HistoryRecorder: + def __init__(self): + self._enabled = False + self._handlers = [] + + def enable(self): + self._enabled = True + + def disable(self): + self._enabled = False + + def add_handler(self, handler): + self._handlers.append(handler) + + def record(self, event_type, payload, source='BOTOCORE'): + if self._enabled and self._handlers: + for handler in self._handlers: + try: + handler.emit(event_type, payload, source) + except Exception: + # Never let the process die because we had a failure in + # a record collection handler. + logger.debug( + "Exception raised in %s.", handler, exc_info=True + ) + + +def get_global_history_recorder(): + global HISTORY_RECORDER + if HISTORY_RECORDER is None: + HISTORY_RECORDER = HistoryRecorder() + return HISTORY_RECORDER diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/hooks.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/hooks.py new file mode 100644 index 0000000000000000000000000000000000000000..c672b1c0506fd3afd4a1e6a75e7472d689014afa --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/hooks.py @@ -0,0 +1,660 @@ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import copy +import logging +from collections import deque, namedtuple + +from botocore.compat import accepts_kwargs +from botocore.utils import EVENT_ALIASES + +logger = logging.getLogger(__name__) + + +_NodeList = namedtuple('NodeList', ['first', 'middle', 'last']) +_FIRST = 0 +_MIDDLE = 1 +_LAST = 2 + + +class NodeList(_NodeList): + def __copy__(self): + first_copy = copy.copy(self.first) + middle_copy = copy.copy(self.middle) + last_copy = copy.copy(self.last) + copied = NodeList(first_copy, middle_copy, last_copy) + return copied + + +def first_non_none_response(responses, default=None): + """Find first non None response in a list of tuples. + + This function can be used to find the first non None response from + handlers connected to an event. This is useful if you are interested + in the returned responses from event handlers. Example usage:: + + print(first_non_none_response([(func1, None), (func2, 'foo'), + (func3, 'bar')])) + # This will print 'foo' + + :type responses: list of tuples + :param responses: The responses from the ``EventHooks.emit`` method. + This is a list of tuples, and each tuple is + (handler, handler_response). + + :param default: If no non-None responses are found, then this default + value will be returned. + + :return: The first non-None response in the list of tuples. + + """ + for response in responses: + if response[1] is not None: + return response[1] + return default + + +class BaseEventHooks: + def emit(self, event_name, **kwargs): + """Call all handlers subscribed to an event. + + :type event_name: str + :param event_name: The name of the event to emit. + + :type **kwargs: dict + :param **kwargs: Arbitrary kwargs to pass through to the + subscribed handlers. The ``event_name`` will be injected + into the kwargs so it's not necessary to add this to **kwargs. + + :rtype: list of tuples + :return: A list of ``(handler_func, handler_func_return_value)`` + + """ + return [] + + def register( + self, event_name, handler, unique_id=None, unique_id_uses_count=False + ): + """Register an event handler for a given event. + + If a ``unique_id`` is given, the handler will not be registered + if a handler with the ``unique_id`` has already been registered. + + Handlers are called in the order they have been registered. + Note handlers can also be registered with ``register_first()`` + and ``register_last()``. All handlers registered with + ``register_first()`` are called before handlers registered + with ``register()`` which are called before handlers registered + with ``register_last()``. + + """ + self._verify_and_register( + event_name, + handler, + unique_id, + register_method=self._register, + unique_id_uses_count=unique_id_uses_count, + ) + + def register_first( + self, event_name, handler, unique_id=None, unique_id_uses_count=False + ): + """Register an event handler to be called first for an event. + + All event handlers registered with ``register_first()`` will + be called before handlers registered with ``register()`` and + ``register_last()``. + + """ + self._verify_and_register( + event_name, + handler, + unique_id, + register_method=self._register_first, + unique_id_uses_count=unique_id_uses_count, + ) + + def register_last( + self, event_name, handler, unique_id=None, unique_id_uses_count=False + ): + """Register an event handler to be called last for an event. + + All event handlers registered with ``register_last()`` will be called + after handlers registered with ``register_first()`` and ``register()``. + + """ + self._verify_and_register( + event_name, + handler, + unique_id, + register_method=self._register_last, + unique_id_uses_count=unique_id_uses_count, + ) + + def _verify_and_register( + self, + event_name, + handler, + unique_id, + register_method, + unique_id_uses_count, + ): + self._verify_is_callable(handler) + self._verify_accept_kwargs(handler) + register_method(event_name, handler, unique_id, unique_id_uses_count) + + def unregister( + self, + event_name, + handler=None, + unique_id=None, + unique_id_uses_count=False, + ): + """Unregister an event handler for a given event. + + If no ``unique_id`` was given during registration, then the + first instance of the event handler is removed (if the event + handler has been registered multiple times). + + """ + pass + + def _verify_is_callable(self, func): + if not callable(func): + raise ValueError(f"Event handler {func} must be callable.") + + def _verify_accept_kwargs(self, func): + """Verifies a callable accepts kwargs + + :type func: callable + :param func: A callable object. + + :returns: True, if ``func`` accepts kwargs, otherwise False. + + """ + try: + if not accepts_kwargs(func): + raise ValueError( + f"Event handler {func} must accept keyword " + f"arguments (**kwargs)" + ) + except TypeError: + return False + + +class HierarchicalEmitter(BaseEventHooks): + def __init__(self): + # We keep a reference to the handlers for quick + # read only access (we never modify self._handlers). + # A cache of event name to handler list. + self._lookup_cache = {} + self._handlers = _PrefixTrie() + # This is used to ensure that unique_id's are only + # registered once. + self._unique_id_handlers = {} + + def _emit(self, event_name, kwargs, stop_on_response=False): + """ + Emit an event with optional keyword arguments. + + :type event_name: string + :param event_name: Name of the event + :type kwargs: dict + :param kwargs: Arguments to be passed to the handler functions. + :type stop_on_response: boolean + :param stop_on_response: Whether to stop on the first non-None + response. If False, then all handlers + will be called. This is especially useful + to handlers which mutate data and then + want to stop propagation of the event. + :rtype: list + :return: List of (handler, response) tuples from all processed + handlers. + """ + responses = [] + # Invoke the event handlers from most specific + # to least specific, each time stripping off a dot. + handlers_to_call = self._lookup_cache.get(event_name) + if handlers_to_call is None: + handlers_to_call = self._handlers.prefix_search(event_name) + self._lookup_cache[event_name] = handlers_to_call + elif not handlers_to_call: + # Short circuit and return an empty response is we have + # no handlers to call. This is the common case where + # for the majority of signals, nothing is listening. + return [] + kwargs['event_name'] = event_name + responses = [] + for handler in handlers_to_call: + logger.debug('Event %s: calling handler %s', event_name, handler) + response = handler(**kwargs) + responses.append((handler, response)) + if stop_on_response and response is not None: + return responses + return responses + + def emit(self, event_name, **kwargs): + """ + Emit an event by name with arguments passed as keyword args. + + >>> responses = emitter.emit( + ... 'my-event.service.operation', arg1='one', arg2='two') + + :rtype: list + :return: List of (handler, response) tuples from all processed + handlers. + """ + return self._emit(event_name, kwargs) + + def emit_until_response(self, event_name, **kwargs): + """ + Emit an event by name with arguments passed as keyword args, + until the first non-``None`` response is received. This + method prevents subsequent handlers from being invoked. + + >>> handler, response = emitter.emit_until_response( + 'my-event.service.operation', arg1='one', arg2='two') + + :rtype: tuple + :return: The first (handler, response) tuple where the response + is not ``None``, otherwise (``None``, ``None``). + """ + responses = self._emit(event_name, kwargs, stop_on_response=True) + if responses: + return responses[-1] + else: + return (None, None) + + def _register( + self, event_name, handler, unique_id=None, unique_id_uses_count=False + ): + self._register_section( + event_name, + handler, + unique_id, + unique_id_uses_count, + section=_MIDDLE, + ) + + def _register_first( + self, event_name, handler, unique_id=None, unique_id_uses_count=False + ): + self._register_section( + event_name, + handler, + unique_id, + unique_id_uses_count, + section=_FIRST, + ) + + def _register_last( + self, event_name, handler, unique_id, unique_id_uses_count=False + ): + self._register_section( + event_name, handler, unique_id, unique_id_uses_count, section=_LAST + ) + + def _register_section( + self, event_name, handler, unique_id, unique_id_uses_count, section + ): + if unique_id is not None: + if unique_id in self._unique_id_handlers: + # We've already registered a handler using this unique_id + # so we don't need to register it again. + count = self._unique_id_handlers[unique_id].get('count', None) + if unique_id_uses_count: + if not count: + raise ValueError( + f"Initial registration of unique id {unique_id} was " + "specified to use a counter. Subsequent register " + "calls to unique id must specify use of a counter " + "as well." + ) + else: + self._unique_id_handlers[unique_id]['count'] += 1 + else: + if count: + raise ValueError( + f"Initial registration of unique id {unique_id} was " + "specified to not use a counter. Subsequent " + "register calls to unique id must specify not to " + "use a counter as well." + ) + return + else: + # Note that the trie knows nothing about the unique + # id. We track uniqueness in this class via the + # _unique_id_handlers. + self._handlers.append_item( + event_name, handler, section=section + ) + unique_id_handler_item = {'handler': handler} + if unique_id_uses_count: + unique_id_handler_item['count'] = 1 + self._unique_id_handlers[unique_id] = unique_id_handler_item + else: + self._handlers.append_item(event_name, handler, section=section) + # Super simple caching strategy for now, if we change the registrations + # clear the cache. This has the opportunity for smarter invalidations. + self._lookup_cache = {} + + def unregister( + self, + event_name, + handler=None, + unique_id=None, + unique_id_uses_count=False, + ): + if unique_id is not None: + try: + count = self._unique_id_handlers[unique_id].get('count', None) + except KeyError: + # There's no handler matching that unique_id so we have + # nothing to unregister. + return + if unique_id_uses_count: + if count is None: + raise ValueError( + f"Initial registration of unique id {unique_id} was specified to " + "use a counter. Subsequent unregister calls to unique " + "id must specify use of a counter as well." + ) + elif count == 1: + handler = self._unique_id_handlers.pop(unique_id)[ + 'handler' + ] + else: + self._unique_id_handlers[unique_id]['count'] -= 1 + return + else: + if count: + raise ValueError( + f"Initial registration of unique id {unique_id} was specified " + "to not use a counter. Subsequent unregister calls " + "to unique id must specify not to use a counter as " + "well." + ) + handler = self._unique_id_handlers.pop(unique_id)['handler'] + try: + self._handlers.remove_item(event_name, handler) + self._lookup_cache = {} + except ValueError: + pass + + def __copy__(self): + new_instance = self.__class__() + new_state = self.__dict__.copy() + new_state['_handlers'] = copy.copy(self._handlers) + new_state['_unique_id_handlers'] = copy.copy(self._unique_id_handlers) + new_instance.__dict__ = new_state + return new_instance + + +class EventAliaser(BaseEventHooks): + def __init__(self, event_emitter, event_aliases=None): + self._event_aliases = event_aliases + if event_aliases is None: + self._event_aliases = EVENT_ALIASES + self._alias_name_cache = {} + self._emitter = event_emitter + + def emit(self, event_name, **kwargs): + aliased_event_name = self._alias_event_name(event_name) + return self._emitter.emit(aliased_event_name, **kwargs) + + def emit_until_response(self, event_name, **kwargs): + aliased_event_name = self._alias_event_name(event_name) + return self._emitter.emit_until_response(aliased_event_name, **kwargs) + + def register( + self, event_name, handler, unique_id=None, unique_id_uses_count=False + ): + aliased_event_name = self._alias_event_name(event_name) + return self._emitter.register( + aliased_event_name, handler, unique_id, unique_id_uses_count + ) + + def register_first( + self, event_name, handler, unique_id=None, unique_id_uses_count=False + ): + aliased_event_name = self._alias_event_name(event_name) + return self._emitter.register_first( + aliased_event_name, handler, unique_id, unique_id_uses_count + ) + + def register_last( + self, event_name, handler, unique_id=None, unique_id_uses_count=False + ): + aliased_event_name = self._alias_event_name(event_name) + return self._emitter.register_last( + aliased_event_name, handler, unique_id, unique_id_uses_count + ) + + def unregister( + self, + event_name, + handler=None, + unique_id=None, + unique_id_uses_count=False, + ): + aliased_event_name = self._alias_event_name(event_name) + return self._emitter.unregister( + aliased_event_name, handler, unique_id, unique_id_uses_count + ) + + def _alias_event_name(self, event_name): + if event_name in self._alias_name_cache: + return self._alias_name_cache[event_name] + + for old_part, new_part in self._event_aliases.items(): + # We can't simply do a string replace for everything, otherwise we + # might end up translating substrings that we never intended to + # translate. When there aren't any dots in the old event name + # part, then we can quickly replace the item in the list if it's + # there. + event_parts = event_name.split('.') + if '.' not in old_part: + try: + # Theoretically a given event name could have the same part + # repeated, but in practice this doesn't happen + event_parts[event_parts.index(old_part)] = new_part + except ValueError: + continue + + # If there's dots in the name, it gets more complicated. Now we + # have to replace multiple sections of the original event. + elif old_part in event_name: + old_parts = old_part.split('.') + self._replace_subsection(event_parts, old_parts, new_part) + else: + continue + + new_name = '.'.join(event_parts) + logger.debug( + "Changing event name from %s to %s", event_name, new_name + ) + self._alias_name_cache[event_name] = new_name + return new_name + + self._alias_name_cache[event_name] = event_name + return event_name + + def _replace_subsection(self, sections, old_parts, new_part): + for i in range(len(sections)): + if ( + sections[i] == old_parts[0] + and sections[i : i + len(old_parts)] == old_parts + ): + sections[i : i + len(old_parts)] = [new_part] + return + + def __copy__(self): + return self.__class__( + copy.copy(self._emitter), copy.copy(self._event_aliases) + ) + + +class _PrefixTrie: + """Specialized prefix trie that handles wildcards. + + The prefixes in this case are based on dot separated + names so 'foo.bar.baz' is:: + + foo -> bar -> baz + + Wildcard support just means that having a key such as 'foo.bar.*.baz' will + be matched with a call to ``get_items(key='foo.bar.ANYTHING.baz')``. + + You can think of this prefix trie as the equivalent as defaultdict(list), + except that it can do prefix searches: + + foo.bar.baz -> A + foo.bar -> B + foo -> C + + Calling ``get_items('foo.bar.baz')`` will return [A + B + C], from + most specific to least specific. + + """ + + def __init__(self): + # Each dictionary can be though of as a node, where a node + # has values associated with the node, and children is a link + # to more nodes. So 'foo.bar' would have a 'foo' node with + # a 'bar' node as a child of foo. + # {'foo': {'children': {'bar': {...}}}}. + self._root = {'chunk': None, 'children': {}, 'values': None} + + def append_item(self, key, value, section=_MIDDLE): + """Add an item to a key. + + If a value is already associated with that key, the new + value is appended to the list for the key. + """ + key_parts = key.split('.') + current = self._root + for part in key_parts: + if part not in current['children']: + new_child = {'chunk': part, 'values': None, 'children': {}} + current['children'][part] = new_child + current = new_child + else: + current = current['children'][part] + if current['values'] is None: + current['values'] = NodeList([], [], []) + current['values'][section].append(value) + + def prefix_search(self, key): + """Collect all items that are prefixes of key. + + Prefix in this case are delineated by '.' characters so + 'foo.bar.baz' is a 3 chunk sequence of 3 "prefixes" ( + "foo", "bar", and "baz"). + + """ + collected = deque() + key_parts = key.split('.') + current = self._root + self._get_items(current, key_parts, collected, 0) + return collected + + def _get_items(self, starting_node, key_parts, collected, starting_index): + stack = [(starting_node, starting_index)] + key_parts_len = len(key_parts) + # Traverse down the nodes, where at each level we add the + # next part from key_parts as well as the wildcard element '*'. + # This means for each node we see we potentially add two more + # elements to our stack. + while stack: + current_node, index = stack.pop() + if current_node['values']: + # We're using extendleft because we want + # the values associated with the node furthest + # from the root to come before nodes closer + # to the root. extendleft() also adds its items + # in right-left order so .extendleft([1, 2, 3]) + # will result in final_list = [3, 2, 1], which is + # why we reverse the lists. + node_list = current_node['values'] + complete_order = ( + node_list.first + node_list.middle + node_list.last + ) + collected.extendleft(reversed(complete_order)) + if not index == key_parts_len: + children = current_node['children'] + directs = children.get(key_parts[index]) + wildcard = children.get('*') + next_index = index + 1 + if wildcard is not None: + stack.append((wildcard, next_index)) + if directs is not None: + stack.append((directs, next_index)) + + def remove_item(self, key, value): + """Remove an item associated with a key. + + If the value is not associated with the key a ``ValueError`` + will be raised. If the key does not exist in the trie, a + ``ValueError`` will be raised. + + """ + key_parts = key.split('.') + current = self._root + self._remove_item(current, key_parts, value, index=0) + + def _remove_item(self, current_node, key_parts, value, index): + if current_node is None: + return + elif index < len(key_parts): + next_node = current_node['children'].get(key_parts[index]) + if next_node is not None: + self._remove_item(next_node, key_parts, value, index + 1) + if index == len(key_parts) - 1: + node_list = next_node['values'] + if value in node_list.first: + node_list.first.remove(value) + elif value in node_list.middle: + node_list.middle.remove(value) + elif value in node_list.last: + node_list.last.remove(value) + if not next_node['children'] and not next_node['values']: + # Then this is a leaf node with no values so + # we can just delete this link from the parent node. + # This makes subsequent search faster in the case + # where a key does not exist. + del current_node['children'][key_parts[index]] + else: + raise ValueError(f"key is not in trie: {'.'.join(key_parts)}") + + def __copy__(self): + # The fact that we're using a nested dict under the covers + # is an implementation detail, and the user shouldn't have + # to know that they'd normally need a deepcopy so we expose + # __copy__ instead of __deepcopy__. + new_copy = self.__class__() + copied_attrs = self._recursive_copy(self.__dict__) + new_copy.__dict__ = copied_attrs + return new_copy + + def _recursive_copy(self, node): + # We can't use copy.deepcopy because we actually only want to copy + # the structure of the trie, not the handlers themselves. + # Each node has a chunk, children, and values. + copied_node = {} + for key, value in node.items(): + if isinstance(value, NodeList): + copied_node[key] = copy.copy(value) + elif isinstance(value, dict): + copied_node[key] = self._recursive_copy(value) + else: + copied_node[key] = value + return copied_node diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/httpchecksum.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/httpchecksum.py new file mode 100644 index 0000000000000000000000000000000000000000..c4a68769650dc2a3cc16707b25ede3d4fedb8d7b --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/httpchecksum.py @@ -0,0 +1,574 @@ +# Copyright 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. + +"""The interfaces in this module are not intended for public use. + +This module defines interfaces for applying checksums to HTTP requests within +the context of botocore. This involves both resolving the checksum to be used +based on client configuration and environment, as well as application of the +checksum to the request. +""" + +import base64 +import io +import logging +from binascii import crc32 +from hashlib import sha1, sha256 + +from botocore.compat import HAS_CRT, has_minimum_crt_version, urlparse +from botocore.exceptions import ( + AwsChunkedWrapperError, + FlexibleChecksumError, + MissingDependencyException, +) +from botocore.model import StructureShape +from botocore.response import StreamingBody +from botocore.useragent import register_feature_id +from botocore.utils import ( + conditionally_calculate_md5, + determine_content_length, + has_checksum_header, +) + +if HAS_CRT: + from awscrt import checksums as crt_checksums +else: + crt_checksums = None + +logger = logging.getLogger(__name__) + +DEFAULT_CHECKSUM_ALGORITHM = "CRC32" + + +class BaseChecksum: + _CHUNK_SIZE = 1024 * 1024 + + def update(self, chunk): + pass + + def digest(self): + pass + + def b64digest(self): + bs = self.digest() + return base64.b64encode(bs).decode("ascii") + + def _handle_fileobj(self, fileobj): + start_position = fileobj.tell() + for chunk in iter(lambda: fileobj.read(self._CHUNK_SIZE), b""): + self.update(chunk) + fileobj.seek(start_position) + + def handle(self, body): + if isinstance(body, (bytes, bytearray)): + self.update(body) + else: + self._handle_fileobj(body) + return self.b64digest() + + +class Crc32Checksum(BaseChecksum): + def __init__(self): + self._int_crc32 = 0 + + def update(self, chunk): + self._int_crc32 = crc32(chunk, self._int_crc32) & 0xFFFFFFFF + + def digest(self): + return self._int_crc32.to_bytes(4, byteorder="big") + + +class CrtCrc32Checksum(BaseChecksum): + # Note: This class is only used if the CRT is available + def __init__(self): + self._int_crc32 = 0 + + def update(self, chunk): + new_checksum = crt_checksums.crc32(chunk, self._int_crc32) + self._int_crc32 = new_checksum & 0xFFFFFFFF + + def digest(self): + return self._int_crc32.to_bytes(4, byteorder="big") + + +class CrtCrc32cChecksum(BaseChecksum): + # Note: This class is only used if the CRT is available + def __init__(self): + self._int_crc32c = 0 + + def update(self, chunk): + new_checksum = crt_checksums.crc32c(chunk, self._int_crc32c) + self._int_crc32c = new_checksum & 0xFFFFFFFF + + def digest(self): + return self._int_crc32c.to_bytes(4, byteorder="big") + + +class CrtCrc64NvmeChecksum(BaseChecksum): + # Note: This class is only used if the CRT is available + def __init__(self): + self._int_crc64nvme = 0 + + def update(self, chunk): + new_checksum = crt_checksums.crc64nvme(chunk, self._int_crc64nvme) + self._int_crc64nvme = new_checksum & 0xFFFFFFFFFFFFFFFF + + def digest(self): + return self._int_crc64nvme.to_bytes(8, byteorder="big") + + +class Sha1Checksum(BaseChecksum): + def __init__(self): + self._checksum = sha1() + + def update(self, chunk): + self._checksum.update(chunk) + + def digest(self): + return self._checksum.digest() + + +class Sha256Checksum(BaseChecksum): + def __init__(self): + self._checksum = sha256() + + def update(self, chunk): + self._checksum.update(chunk) + + def digest(self): + return self._checksum.digest() + + +class AwsChunkedWrapper: + _DEFAULT_CHUNK_SIZE = 1024 * 1024 + + def __init__( + self, + raw, + checksum_cls=None, + checksum_name="x-amz-checksum", + chunk_size=None, + ): + self._raw = raw + self._checksum_name = checksum_name + self._checksum_cls = checksum_cls + self._reset() + + if chunk_size is None: + chunk_size = self._DEFAULT_CHUNK_SIZE + self._chunk_size = chunk_size + + def _reset(self): + self._remaining = b"" + self._complete = False + self._checksum = None + if self._checksum_cls: + self._checksum = self._checksum_cls() + + def seek(self, offset, whence=0): + if offset != 0 or whence != 0: + raise AwsChunkedWrapperError( + error_msg="Can only seek to start of stream" + ) + self._reset() + self._raw.seek(0) + + def read(self, size=None): + # Normalize "read all" size values to None + if size is not None and size <= 0: + size = None + + # If the underlying body is done and we have nothing left then + # end the stream + if self._complete and not self._remaining: + return b"" + + # While we're not done and want more bytes + want_more_bytes = size is None or size > len(self._remaining) + while not self._complete and want_more_bytes: + self._remaining += self._make_chunk() + want_more_bytes = size is None or size > len(self._remaining) + + # If size was None, we want to return everything + if size is None: + size = len(self._remaining) + + # Return a chunk up to the size asked for + to_return = self._remaining[:size] + self._remaining = self._remaining[size:] + return to_return + + def _make_chunk(self): + # NOTE: Chunk size is not deterministic as read could return less. This + # means we cannot know the content length of the encoded aws-chunked + # stream ahead of time without ensuring a consistent chunk size + raw_chunk = self._raw.read(self._chunk_size) + hex_len = hex(len(raw_chunk))[2:].encode("ascii") + self._complete = not raw_chunk + + if self._checksum: + self._checksum.update(raw_chunk) + + if self._checksum and self._complete: + name = self._checksum_name.encode("ascii") + checksum = self._checksum.b64digest().encode("ascii") + return b"0\r\n%s:%s\r\n\r\n" % (name, checksum) + + return b"%s\r\n%s\r\n" % (hex_len, raw_chunk) + + def __iter__(self): + while not self._complete: + yield self._make_chunk() + + +class StreamingChecksumBody(StreamingBody): + def __init__(self, raw_stream, content_length, checksum, expected): + super().__init__(raw_stream, content_length) + self._checksum = checksum + self._expected = expected + + def read(self, amt=None): + chunk = super().read(amt=amt) + self._checksum.update(chunk) + if amt is None or (not chunk and amt > 0): + self._validate_checksum() + return chunk + + def readinto(self, b): + amount_read = super().readinto(b) + if amount_read == len(b): + view = b + else: + view = memoryview(b)[:amount_read] + self._checksum.update(view) + if amount_read == 0 and len(b) > 0: + self._validate_checksum() + return amount_read + + def _validate_checksum(self): + if self._checksum.digest() != base64.b64decode(self._expected): + error_msg = ( + f"Expected checksum {self._expected} did not match calculated " + f"checksum: {self._checksum.b64digest()}" + ) + raise FlexibleChecksumError(error_msg=error_msg) + + +def resolve_checksum_context(request, operation_model, params): + resolve_request_checksum_algorithm(request, operation_model, params) + resolve_response_checksum_algorithms(request, operation_model, params) + + +def resolve_request_checksum_algorithm( + request, + operation_model, + params, + supported_algorithms=None, +): + # If the header is already set by the customer, skip calculation + if has_checksum_header(request): + return + + checksum_context = request["context"].get("checksum", {}) + request_checksum_calculation = request["context"][ + "client_config" + ].request_checksum_calculation + http_checksum = operation_model.http_checksum + request_checksum_required = ( + operation_model.http_checksum_required + or http_checksum.get("requestChecksumRequired") + ) + algorithm_member = http_checksum.get("requestAlgorithmMember") + if algorithm_member and algorithm_member in params: + # If the client has opted into using flexible checksums and the + # request supports it, use that instead of checksum required + if supported_algorithms is None: + supported_algorithms = _SUPPORTED_CHECKSUM_ALGORITHMS + + algorithm_name = params[algorithm_member].lower() + if algorithm_name not in supported_algorithms: + if not HAS_CRT and algorithm_name in _CRT_CHECKSUM_ALGORITHMS: + raise MissingDependencyException( + msg=( + f"Using {algorithm_name.upper()} requires an " + "additional dependency. You will need to pip install " + "botocore[crt] before proceeding." + ) + ) + raise FlexibleChecksumError( + error_msg=f"Unsupported checksum algorithm: {algorithm_name}" + ) + elif request_checksum_required or ( + algorithm_member and request_checksum_calculation == "when_supported" + ): + # Don't use a default checksum for presigned requests. + if request["context"].get("is_presign_request"): + return + algorithm_name = DEFAULT_CHECKSUM_ALGORITHM.lower() + algorithm_member_header = _get_request_algorithm_member_header( + operation_model, request, algorithm_member + ) + if algorithm_member_header is not None: + checksum_context["request_algorithm_header"] = { + "name": algorithm_member_header, + "value": DEFAULT_CHECKSUM_ALGORITHM, + } + else: + return + + location_type = "header" + if ( + operation_model.has_streaming_input + and urlparse(request["url"]).scheme == "https" + ): + if request["context"]["client_config"].signature_version != 's3': + # Operations with streaming input must support trailers. + # We only support unsigned trailer checksums currently. As this + # disables payload signing we'll only use trailers over TLS. + location_type = "trailer" + + algorithm = { + "algorithm": algorithm_name, + "in": location_type, + "name": f"x-amz-checksum-{algorithm_name}", + } + + checksum_context["request_algorithm"] = algorithm + request["context"]["checksum"] = checksum_context + + +def _get_request_algorithm_member_header( + operation_model, request, algorithm_member +): + """Get the name of the header targeted by the "requestAlgorithmMember".""" + operation_input_shape = operation_model.input_shape + if not isinstance(operation_input_shape, StructureShape): + return + + algorithm_member_shape = operation_input_shape.members.get( + algorithm_member + ) + + if algorithm_member_shape: + return algorithm_member_shape.serialization.get("name") + + +def apply_request_checksum(request): + checksum_context = request.get("context", {}).get("checksum", {}) + algorithm = checksum_context.get("request_algorithm") + + if not algorithm: + return + + if algorithm == "conditional-md5": + # Special case to handle the http checksum required trait + conditionally_calculate_md5(request) + elif algorithm["in"] == "header": + _apply_request_header_checksum(request) + elif algorithm["in"] == "trailer": + _apply_request_trailer_checksum(request) + else: + raise FlexibleChecksumError( + error_msg="Unknown checksum variant: {}".format(algorithm["in"]) + ) + if "request_algorithm_header" in checksum_context: + request_algorithm_header = checksum_context["request_algorithm_header"] + request["headers"][request_algorithm_header["name"]] = ( + request_algorithm_header["value"] + ) + + +def _apply_request_header_checksum(request): + checksum_context = request.get("context", {}).get("checksum", {}) + algorithm = checksum_context.get("request_algorithm") + location_name = algorithm["name"] + if location_name in request["headers"]: + # If the header is already set by the customer, skip calculation + return + checksum_cls = _CHECKSUM_CLS.get(algorithm["algorithm"]) + digest = checksum_cls().handle(request["body"]) + request["headers"][location_name] = digest + _register_checksum_algorithm_feature_id(algorithm) + + +def _apply_request_trailer_checksum(request): + checksum_context = request.get("context", {}).get("checksum", {}) + algorithm = checksum_context.get("request_algorithm") + location_name = algorithm["name"] + checksum_cls = _CHECKSUM_CLS.get(algorithm["algorithm"]) + + headers = request["headers"] + body = request["body"] + + if location_name in headers: + # If the header is already set by the customer, skip calculation + return + + headers["Transfer-Encoding"] = "chunked" + if "Content-Encoding" in headers: + # We need to preserve the existing content encoding and add + # aws-chunked as a new content encoding. + headers["Content-Encoding"] += ",aws-chunked" + else: + headers["Content-Encoding"] = "aws-chunked" + headers["X-Amz-Trailer"] = location_name + _register_checksum_algorithm_feature_id(algorithm) + + content_length = determine_content_length(body) + if content_length is not None: + # Send the decoded content length if we can determine it. Some + # services such as S3 may require the decoded content length + headers["X-Amz-Decoded-Content-Length"] = str(content_length) + + if "Content-Length" in headers: + del headers["Content-Length"] + logger.debug( + "Removing the Content-Length header since 'chunked' is specified for Transfer-Encoding." + ) + + if isinstance(body, (bytes, bytearray)): + body = io.BytesIO(body) + + request["body"] = AwsChunkedWrapper( + body, + checksum_cls=checksum_cls, + checksum_name=location_name, + ) + + +def _register_checksum_algorithm_feature_id(algorithm): + checksum_algorithm_name = algorithm["algorithm"].upper() + if checksum_algorithm_name == "CRC64NVME": + checksum_algorithm_name = "CRC64" + checksum_algorithm_name_feature_id = ( + f"FLEXIBLE_CHECKSUMS_REQ_{checksum_algorithm_name}" + ) + register_feature_id(checksum_algorithm_name_feature_id) + + +def resolve_response_checksum_algorithms( + request, operation_model, params, supported_algorithms=None +): + http_checksum = operation_model.http_checksum + mode_member = http_checksum.get("requestValidationModeMember") + if mode_member and mode_member in params: + if supported_algorithms is None: + supported_algorithms = _SUPPORTED_CHECKSUM_ALGORITHMS + response_algorithms = { + a.lower() for a in http_checksum.get("responseAlgorithms", []) + } + + usable_algorithms = [] + for algorithm in _ALGORITHMS_PRIORITY_LIST: + if algorithm not in response_algorithms: + continue + if algorithm in supported_algorithms: + usable_algorithms.append(algorithm) + + checksum_context = request["context"].get("checksum", {}) + checksum_context["response_algorithms"] = usable_algorithms + request["context"]["checksum"] = checksum_context + + +def handle_checksum_body(http_response, response, context, operation_model): + headers = response["headers"] + checksum_context = context.get("checksum", {}) + algorithms = checksum_context.get("response_algorithms") + + if not algorithms: + return + + for algorithm in algorithms: + header_name = f"x-amz-checksum-{algorithm}" + # If the header is not found, check the next algorithm + if header_name not in headers: + continue + + # If a - is in the checksum this is not valid Base64. S3 returns + # checksums that include a -# suffix to indicate a checksum derived + # from the hash of all part checksums. We cannot wrap this response + if "-" in headers[header_name]: + continue + + if operation_model.has_streaming_output: + response["body"] = _handle_streaming_response( + http_response, response, algorithm + ) + else: + response["body"] = _handle_bytes_response( + http_response, response, algorithm + ) + + # Expose metadata that the checksum check actually occurred + checksum_context = response["context"].get("checksum", {}) + checksum_context["response_algorithm"] = algorithm + response["context"]["checksum"] = checksum_context + return + + logger.debug( + 'Skipping checksum validation. Response did not contain one of the following algorithms: %s.', + algorithms, + ) + + +def _handle_streaming_response(http_response, response, algorithm): + checksum_cls = _CHECKSUM_CLS.get(algorithm) + header_name = f"x-amz-checksum-{algorithm}" + return StreamingChecksumBody( + http_response.raw, + response["headers"].get("content-length"), + checksum_cls(), + response["headers"][header_name], + ) + + +def _handle_bytes_response(http_response, response, algorithm): + body = http_response.content + header_name = f"x-amz-checksum-{algorithm}" + checksum_cls = _CHECKSUM_CLS.get(algorithm) + checksum = checksum_cls() + checksum.update(body) + expected = response["headers"][header_name] + if checksum.digest() != base64.b64decode(expected): + error_msg = ( + f"Expected checksum {expected} did not match calculated " + f"checksum: {checksum.b64digest()}" + ) + raise FlexibleChecksumError(error_msg=error_msg) + return body + + +_CHECKSUM_CLS = { + "crc32": Crc32Checksum, + "sha1": Sha1Checksum, + "sha256": Sha256Checksum, +} +_CRT_CHECKSUM_ALGORITHMS = ["crc32", "crc32c", "crc64nvme"] +if HAS_CRT: + # Use CRT checksum implementations if available + _CRT_CHECKSUM_CLS = { + "crc32": CrtCrc32Checksum, + "crc32c": CrtCrc32cChecksum, + } + + if has_minimum_crt_version((0, 23, 4)): + # CRC64NVME support wasn't officially added until 0.23.4 + _CRT_CHECKSUM_CLS["crc64nvme"] = CrtCrc64NvmeChecksum + + _CHECKSUM_CLS.update(_CRT_CHECKSUM_CLS) + # Validate this list isn't out of sync with _CRT_CHECKSUM_CLS keys + assert all( + name in _CRT_CHECKSUM_ALGORITHMS for name in _CRT_CHECKSUM_CLS.keys() + ) +_SUPPORTED_CHECKSUM_ALGORITHMS = list(_CHECKSUM_CLS.keys()) +_ALGORITHMS_PRIORITY_LIST = ['crc64nvme', 'crc32c', 'crc32', 'sha1', 'sha256'] diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/httpsession.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/httpsession.py new file mode 100644 index 0000000000000000000000000000000000000000..6d55e0ef7406186c59c956ffc7fa505f312402d5 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/httpsession.py @@ -0,0 +1,512 @@ +import logging +import os +import os.path +import socket +import sys +import warnings +from base64 import b64encode +from concurrent.futures import CancelledError + +from urllib3 import PoolManager, Timeout, proxy_from_url +from urllib3.exceptions import ( + ConnectTimeoutError as URLLib3ConnectTimeoutError, +) +from urllib3.exceptions import ( + LocationParseError, + NewConnectionError, + ProtocolError, + ProxyError, +) +from urllib3.exceptions import ReadTimeoutError as URLLib3ReadTimeoutError +from urllib3.exceptions import SSLError as URLLib3SSLError +from urllib3.util.retry import Retry +from urllib3.util.ssl_ import ( + OP_NO_COMPRESSION, + PROTOCOL_TLS, + OP_NO_SSLv2, + OP_NO_SSLv3, + is_ipaddress, + ssl, +) +from urllib3.util.url import parse_url + +try: + from urllib3.util.ssl_ import OP_NO_TICKET, PROTOCOL_TLS_CLIENT +except ImportError: + # Fallback directly to ssl for version of urllib3 before 1.26. + # They are available in the standard library starting in Python 3.6. + from ssl import OP_NO_TICKET, PROTOCOL_TLS_CLIENT + +try: + # pyopenssl will be removed in urllib3 2.0, we'll fall back to ssl_ at that point. + # This can be removed once our urllib3 floor is raised to >= 2.0. + with warnings.catch_warnings(): + warnings.simplefilter("ignore", category=DeprecationWarning) + # Always import the original SSLContext, even if it has been patched + from urllib3.contrib.pyopenssl import ( + orig_util_SSLContext as SSLContext, + ) +except (AttributeError, ImportError): + from urllib3.util.ssl_ import SSLContext + +try: + from urllib3.util.ssl_ import DEFAULT_CIPHERS +except ImportError: + # Defer to system configuration starting with + # urllib3 2.0. This will choose the ciphers provided by + # Openssl 1.1.1+ or secure system defaults. + DEFAULT_CIPHERS = None + +import botocore.awsrequest +from botocore.compat import ( + IPV6_ADDRZ_RE, + ensure_bytes, + filter_ssl_warnings, + unquote, + urlparse, +) +from botocore.exceptions import ( + ConnectionClosedError, + ConnectTimeoutError, + EndpointConnectionError, + HTTPClientError, + InvalidProxiesConfigError, + ProxyConnectionError, + ReadTimeoutError, + SSLError, +) + +filter_ssl_warnings() +logger = logging.getLogger(__name__) +DEFAULT_TIMEOUT = 60 +MAX_POOL_CONNECTIONS = 10 +DEFAULT_CA_BUNDLE = os.path.join(os.path.dirname(__file__), 'cacert.pem') + +try: + from certifi import where +except ImportError: + + def where(): + return DEFAULT_CA_BUNDLE + + +def get_cert_path(verify): + if verify is not True: + return verify + + cert_path = where() + logger.debug("Certificate path: %s", cert_path) + + return cert_path + + +def create_urllib3_context( + ssl_version=None, cert_reqs=None, options=None, ciphers=None +): + """This function is a vendored version of the same function in urllib3 + + We vendor this function to ensure that the SSL contexts we construct + always use the std lib SSLContext instead of pyopenssl. + """ + # PROTOCOL_TLS is deprecated in Python 3.10 + if not ssl_version or ssl_version == PROTOCOL_TLS: + ssl_version = PROTOCOL_TLS_CLIENT + + context = SSLContext(ssl_version) + + if ciphers: + context.set_ciphers(ciphers) + elif DEFAULT_CIPHERS: + context.set_ciphers(DEFAULT_CIPHERS) + + # Setting the default here, as we may have no ssl module on import + cert_reqs = ssl.CERT_REQUIRED if cert_reqs is None else cert_reqs + + if options is None: + options = 0 + # SSLv2 is easily broken and is considered harmful and dangerous + options |= OP_NO_SSLv2 + # SSLv3 has several problems and is now dangerous + options |= OP_NO_SSLv3 + # Disable compression to prevent CRIME attacks for OpenSSL 1.0+ + # (issue urllib3#309) + options |= OP_NO_COMPRESSION + # TLSv1.2 only. Unless set explicitly, do not request tickets. + # This may save some bandwidth on wire, and although the ticket is encrypted, + # there is a risk associated with it being on wire, + # if the server is not rotating its ticketing keys properly. + options |= OP_NO_TICKET + + context.options |= options + + # Enable post-handshake authentication for TLS 1.3, see GH #1634. PHA is + # necessary for conditional client cert authentication with TLS 1.3. + # The attribute is None for OpenSSL <= 1.1.0 or does not exist in older + # versions of Python. We only enable on Python 3.7.4+ or if certificate + # verification is enabled to work around Python issue #37428 + # See: https://bugs.python.org/issue37428 + if ( + cert_reqs == ssl.CERT_REQUIRED or sys.version_info >= (3, 7, 4) + ) and getattr(context, "post_handshake_auth", None) is not None: + context.post_handshake_auth = True + + def disable_check_hostname(): + if ( + getattr(context, "check_hostname", None) is not None + ): # Platform-specific: Python 3.2 + # We do our own verification, including fingerprints and alternative + # hostnames. So disable it here + context.check_hostname = False + + # The order of the below lines setting verify_mode and check_hostname + # matter due to safe-guards SSLContext has to prevent an SSLContext with + # check_hostname=True, verify_mode=NONE/OPTIONAL. This is made even more + # complex because we don't know whether PROTOCOL_TLS_CLIENT will be used + # or not so we don't know the initial state of the freshly created SSLContext. + if cert_reqs == ssl.CERT_REQUIRED: + context.verify_mode = cert_reqs + disable_check_hostname() + else: + disable_check_hostname() + context.verify_mode = cert_reqs + + # Enable logging of TLS session keys via defacto standard environment variable + # 'SSLKEYLOGFILE', if the feature is available (Python 3.8+). Skip empty values. + if hasattr(context, "keylog_filename"): + sslkeylogfile = os.environ.get("SSLKEYLOGFILE") + if sslkeylogfile and not sys.flags.ignore_environment: + context.keylog_filename = sslkeylogfile + + return context + + +def ensure_boolean(val): + """Ensures a boolean value if a string or boolean is provided + + For strings, the value for True/False is case insensitive + """ + if isinstance(val, bool): + return val + else: + return val.lower() == 'true' + + +def mask_proxy_url(proxy_url): + """ + Mask proxy url credentials. + + :type proxy_url: str + :param proxy_url: The proxy url, i.e. https://username:password@proxy.com + + :return: Masked proxy url, i.e. https://***:***@proxy.com + """ + mask = '*' * 3 + parsed_url = urlparse(proxy_url) + if parsed_url.username: + proxy_url = proxy_url.replace(parsed_url.username, mask, 1) + if parsed_url.password: + proxy_url = proxy_url.replace(parsed_url.password, mask, 1) + return proxy_url + + +def _is_ipaddress(host): + """Wrap urllib3's is_ipaddress to support bracketed IPv6 addresses.""" + return is_ipaddress(host) or bool(IPV6_ADDRZ_RE.match(host)) + + +class ProxyConfiguration: + """Represents a proxy configuration dictionary and additional settings. + + This class represents a proxy configuration dictionary and provides utility + functions to retrieve well structured proxy urls and proxy headers from the + proxy configuration dictionary. + """ + + def __init__(self, proxies=None, proxies_settings=None): + if proxies is None: + proxies = {} + if proxies_settings is None: + proxies_settings = {} + + self._proxies = proxies + self._proxies_settings = proxies_settings + + def proxy_url_for(self, url): + """Retrieves the corresponding proxy url for a given url.""" + parsed_url = urlparse(url) + proxy = self._proxies.get(parsed_url.scheme) + if proxy: + proxy = self._fix_proxy_url(proxy) + return proxy + + def proxy_headers_for(self, proxy_url): + """Retrieves the corresponding proxy headers for a given proxy url.""" + headers = {} + username, password = self._get_auth_from_url(proxy_url) + if username and password: + basic_auth = self._construct_basic_auth(username, password) + headers['Proxy-Authorization'] = basic_auth + return headers + + @property + def settings(self): + return self._proxies_settings + + def _fix_proxy_url(self, proxy_url): + if proxy_url.startswith('http:') or proxy_url.startswith('https:'): + return proxy_url + elif proxy_url.startswith('//'): + return 'http:' + proxy_url + else: + return 'http://' + proxy_url + + def _construct_basic_auth(self, username, password): + auth_str = f'{username}:{password}' + encoded_str = b64encode(auth_str.encode('ascii')).strip().decode() + return f'Basic {encoded_str}' + + def _get_auth_from_url(self, url): + parsed_url = urlparse(url) + try: + return unquote(parsed_url.username), unquote(parsed_url.password) + except (AttributeError, TypeError): + return None, None + + +class URLLib3Session: + """A basic HTTP client that supports connection pooling and proxies. + + This class is inspired by requests.adapters.HTTPAdapter, but has been + boiled down to meet the use cases needed by botocore. For the most part + this classes matches the functionality of HTTPAdapter in requests v2.7.0 + (the same as our vendored version). The only major difference of note is + that we currently do not support sending chunked requests. While requests + v2.7.0 implemented this themselves, later version urllib3 support this + directly via a flag to urlopen so enabling it if needed should be trivial. + """ + + def __init__( + self, + verify=True, + proxies=None, + timeout=None, + max_pool_connections=MAX_POOL_CONNECTIONS, + socket_options=None, + client_cert=None, + proxies_config=None, + ): + self._verify = verify + self._proxy_config = ProxyConfiguration( + proxies=proxies, proxies_settings=proxies_config + ) + self._pool_classes_by_scheme = { + 'http': botocore.awsrequest.AWSHTTPConnectionPool, + 'https': botocore.awsrequest.AWSHTTPSConnectionPool, + } + if timeout is None: + timeout = DEFAULT_TIMEOUT + if not isinstance(timeout, (int, float)): + timeout = Timeout(connect=timeout[0], read=timeout[1]) + + self._cert_file = None + self._key_file = None + if isinstance(client_cert, str): + self._cert_file = client_cert + elif isinstance(client_cert, tuple): + self._cert_file, self._key_file = client_cert + + self._timeout = timeout + self._max_pool_connections = max_pool_connections + self._socket_options = socket_options + if socket_options is None: + self._socket_options = [] + self._proxy_managers = {} + self._manager = PoolManager(**self._get_pool_manager_kwargs()) + self._manager.pool_classes_by_scheme = self._pool_classes_by_scheme + + def _proxies_kwargs(self, **kwargs): + proxies_settings = self._proxy_config.settings + proxies_kwargs = { + 'use_forwarding_for_https': proxies_settings.get( + 'proxy_use_forwarding_for_https' + ), + **kwargs, + } + return {k: v for k, v in proxies_kwargs.items() if v is not None} + + def _get_pool_manager_kwargs(self, **extra_kwargs): + pool_manager_kwargs = { + 'timeout': self._timeout, + 'maxsize': self._max_pool_connections, + 'ssl_context': self._get_ssl_context(), + 'socket_options': self._socket_options, + 'cert_file': self._cert_file, + 'key_file': self._key_file, + } + pool_manager_kwargs.update(**extra_kwargs) + return pool_manager_kwargs + + def _get_ssl_context(self): + return create_urllib3_context() + + def _get_proxy_manager(self, proxy_url): + if proxy_url not in self._proxy_managers: + proxy_headers = self._proxy_config.proxy_headers_for(proxy_url) + proxy_ssl_context = self._setup_proxy_ssl_context(proxy_url) + proxy_manager_kwargs = self._get_pool_manager_kwargs( + proxy_headers=proxy_headers + ) + proxy_manager_kwargs.update( + self._proxies_kwargs(proxy_ssl_context=proxy_ssl_context) + ) + proxy_manager = proxy_from_url(proxy_url, **proxy_manager_kwargs) + proxy_manager.pool_classes_by_scheme = self._pool_classes_by_scheme + self._proxy_managers[proxy_url] = proxy_manager + + return self._proxy_managers[proxy_url] + + def _path_url(self, url): + parsed_url = urlparse(url) + path = parsed_url.path + if not path: + path = '/' + if parsed_url.query: + path = path + '?' + parsed_url.query + return path + + def _setup_ssl_cert(self, conn, url, verify): + if url.lower().startswith('https') and verify: + conn.cert_reqs = 'CERT_REQUIRED' + conn.ca_certs = get_cert_path(verify) + else: + conn.cert_reqs = 'CERT_NONE' + conn.ca_certs = None + + def _setup_proxy_ssl_context(self, proxy_url): + proxies_settings = self._proxy_config.settings + proxy_ca_bundle = proxies_settings.get('proxy_ca_bundle') + proxy_cert = proxies_settings.get('proxy_client_cert') + if proxy_ca_bundle is None and proxy_cert is None: + return None + + context = self._get_ssl_context() + try: + url = parse_url(proxy_url) + # urllib3 disables this by default but we need it for proper + # proxy tls negotiation when proxy_url is not an IP Address + if not _is_ipaddress(url.host): + context.check_hostname = True + if proxy_ca_bundle is not None: + context.load_verify_locations(cafile=proxy_ca_bundle) + + if isinstance(proxy_cert, tuple): + context.load_cert_chain(proxy_cert[0], keyfile=proxy_cert[1]) + elif isinstance(proxy_cert, str): + context.load_cert_chain(proxy_cert) + + return context + except (OSError, URLLib3SSLError, LocationParseError) as e: + raise InvalidProxiesConfigError(error=e) + + def _get_connection_manager(self, url, proxy_url=None): + if proxy_url: + manager = self._get_proxy_manager(proxy_url) + else: + manager = self._manager + return manager + + def _get_request_target(self, url, proxy_url): + has_proxy = proxy_url is not None + + if not has_proxy: + return self._path_url(url) + + # HTTP proxies expect the request_target to be the absolute url to know + # which host to establish a connection to. urllib3 also supports + # forwarding for HTTPS through the 'use_forwarding_for_https' parameter. + proxy_scheme = urlparse(proxy_url).scheme + using_https_forwarding_proxy = ( + proxy_scheme == 'https' + and self._proxies_kwargs().get('use_forwarding_for_https', False) + ) + + if using_https_forwarding_proxy or url.startswith('http:'): + return url + else: + return self._path_url(url) + + def _chunked(self, headers): + transfer_encoding = headers.get('Transfer-Encoding', b'') + transfer_encoding = ensure_bytes(transfer_encoding) + return transfer_encoding.lower() == b'chunked' + + def close(self): + self._manager.clear() + for manager in self._proxy_managers.values(): + manager.clear() + + def send(self, request): + try: + proxy_url = self._proxy_config.proxy_url_for(request.url) + manager = self._get_connection_manager(request.url, proxy_url) + conn = manager.connection_from_url(request.url) + self._setup_ssl_cert(conn, request.url, self._verify) + if ensure_boolean( + os.environ.get('BOTO_EXPERIMENTAL__ADD_PROXY_HOST_HEADER', '') + ): + # This is currently an "experimental" feature which provides + # no guarantees of backwards compatibility. It may be subject + # to change or removal in any patch version. Anyone opting in + # to this feature should strictly pin botocore. + host = urlparse(request.url).hostname + conn.proxy_headers['host'] = host + + request_target = self._get_request_target(request.url, proxy_url) + urllib_response = conn.urlopen( + method=request.method, + url=request_target, + body=request.body, + headers=request.headers, + retries=Retry(False), + assert_same_host=False, + preload_content=False, + decode_content=False, + chunked=self._chunked(request.headers), + ) + + http_response = botocore.awsrequest.AWSResponse( + request.url, + urllib_response.status, + urllib_response.headers, + urllib_response, + ) + + if not request.stream_output: + # Cause the raw stream to be exhausted immediately. We do it + # this way instead of using preload_content because + # preload_content will never buffer chunked responses + http_response.content + + return http_response + except URLLib3SSLError as e: + raise SSLError(endpoint_url=request.url, error=e) + except (NewConnectionError, socket.gaierror) as e: + raise EndpointConnectionError(endpoint_url=request.url, error=e) + except ProxyError as e: + raise ProxyConnectionError( + proxy_url=mask_proxy_url(proxy_url), error=e + ) + except URLLib3ConnectTimeoutError as e: + raise ConnectTimeoutError(endpoint_url=request.url, error=e) + except URLLib3ReadTimeoutError as e: + raise ReadTimeoutError(endpoint_url=request.url, error=e) + except ProtocolError as e: + raise ConnectionClosedError( + error=e, request=request, endpoint_url=request.url + ) + except CancelledError: + raise + except Exception as e: + message = 'Exception received when sending urllib3 HTTP request' + logger.debug(message, exc_info=True) + raise HTTPClientError(error=e) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/loaders.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/loaders.py new file mode 100644 index 0000000000000000000000000000000000000000..f5072a3e5f508d321cb4ba18976494cbd9657e96 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/loaders.py @@ -0,0 +1,525 @@ +# Copyright 2012-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +"""Module for loading various model files. + +This module provides the classes that are used to load models used +by botocore. This can include: + + * Service models (e.g. the model for EC2, S3, DynamoDB, etc.) + * Service model extras which customize the service models + * Other models associated with a service (pagination, waiters) + * Non service-specific config (Endpoint data, retry config) + +Loading a module is broken down into several steps: + + * Determining the path to load + * Search the data_path for files to load + * The mechanics of loading the file + * Searching for extras and applying them to the loaded file + +The last item is used so that other faster loading mechanism +besides the default JSON loader can be used. + +The Search Path +=============== + +Similar to how the PATH environment variable is to finding executables +and the PYTHONPATH environment variable is to finding python modules +to import, the botocore loaders have the concept of a data path exposed +through AWS_DATA_PATH. + +This enables end users to provide additional search paths where we +will attempt to load models outside of the models we ship with +botocore. When you create a ``Loader``, there are two paths +automatically added to the model search path: + + * /data/ + * ~/.aws/models + +The first value is the path where all the model files shipped with +botocore are located. + +The second path is so that users can just drop new model files in +``~/.aws/models`` without having to mess around with the AWS_DATA_PATH. + +The AWS_DATA_PATH using the platform specific path separator to +separate entries (typically ``:`` on linux and ``;`` on windows). + + +Directory Layout +================ + +The Loader expects a particular directory layout. In order for any +directory specified in AWS_DATA_PATH to be considered, it must have +this structure for service models:: + + + | + |-- servicename1 + | |-- 2012-10-25 + | |-- service-2.json + |-- ec2 + | |-- 2014-01-01 + | | |-- paginators-1.json + | | |-- service-2.json + | | |-- waiters-2.json + | |-- 2015-03-01 + | |-- paginators-1.json + | |-- service-2.json + | |-- waiters-2.json + | |-- service-2.sdk-extras.json + + +That is: + + * The root directory contains sub directories that are the name + of the services. + * Within each service directory, there's a sub directory for each + available API version. + * Within each API version, there are model specific files, including + (but not limited to): service-2.json, waiters-2.json, paginators-1.json + +The ``-1`` and ``-2`` suffix at the end of the model files denote which version +schema is used within the model. Even though this information is available in +the ``version`` key within the model, this version is also part of the filename +so that code does not need to load the JSON model in order to determine which +version to use. + +The ``sdk-extras`` and similar files represent extra data that needs to be +applied to the model after it is loaded. Data in these files might represent +information that doesn't quite fit in the original models, but is still needed +for the sdk. For instance, additional operation parameters might be added here +which don't represent the actual service api. +""" + +import logging +import os + +from botocore import BOTOCORE_ROOT +from botocore.compat import HAS_GZIP, OrderedDict, json +from botocore.exceptions import DataNotFoundError, UnknownServiceError +from botocore.utils import deep_merge + +_JSON_OPEN_METHODS = { + '.json': open, +} + + +if HAS_GZIP: + from gzip import open as gzip_open + + _JSON_OPEN_METHODS['.json.gz'] = gzip_open + + +logger = logging.getLogger(__name__) + + +def instance_cache(func): + """Cache the result of a method on a per instance basis. + + This is not a general purpose caching decorator. In order + for this to be used, it must be used on methods on an + instance, and that instance *must* provide a + ``self._cache`` dictionary. + + """ + + def _wrapper(self, *args, **kwargs): + key = (func.__name__,) + args + for pair in sorted(kwargs.items()): + key += pair + if key in self._cache: + return self._cache[key] + data = func(self, *args, **kwargs) + self._cache[key] = data + return data + + return _wrapper + + +class JSONFileLoader: + """Loader JSON files. + + This class can load the default format of models, which is a JSON file. + + """ + + def exists(self, file_path): + """Checks if the file exists. + + :type file_path: str + :param file_path: The full path to the file to load without + the '.json' extension. + + :return: True if file path exists, False otherwise. + + """ + for ext in _JSON_OPEN_METHODS: + if os.path.isfile(file_path + ext): + return True + return False + + def _load_file(self, full_path, open_method): + if not os.path.isfile(full_path): + return + + # By default the file will be opened with locale encoding on Python 3. + # We specify "utf8" here to ensure the correct behavior. + with open_method(full_path, 'rb') as fp: + payload = fp.read().decode('utf-8') + + logger.debug("Loading JSON file: %s", full_path) + return json.loads(payload, object_pairs_hook=OrderedDict) + + def load_file(self, file_path): + """Attempt to load the file path. + + :type file_path: str + :param file_path: The full path to the file to load without + the '.json' extension. + + :return: The loaded data if it exists, otherwise None. + + """ + for ext, open_method in _JSON_OPEN_METHODS.items(): + data = self._load_file(file_path + ext, open_method) + if data is not None: + return data + return None + + +def create_loader(search_path_string=None): + """Create a Loader class. + + This factory function creates a loader given a search string path. + + :type search_string_path: str + :param search_string_path: The AWS_DATA_PATH value. A string + of data path values separated by the ``os.path.pathsep`` value, + which is typically ``:`` on POSIX platforms and ``;`` on + windows. + + :return: A ``Loader`` instance. + + """ + if search_path_string is None: + return Loader() + paths = [] + extra_paths = search_path_string.split(os.pathsep) + for path in extra_paths: + path = os.path.expanduser(os.path.expandvars(path)) + paths.append(path) + return Loader(extra_search_paths=paths) + + +class Loader: + """Find and load data models. + + This class will handle searching for and loading data models. + + The main method used here is ``load_service_model``, which is a + convenience method over ``load_data`` and ``determine_latest_version``. + + """ + + FILE_LOADER_CLASS = JSONFileLoader + # The included models in botocore/data/ that we ship with botocore. + BUILTIN_DATA_PATH = os.path.join(BOTOCORE_ROOT, 'data') + # For convenience we automatically add ~/.aws/models to the data path. + CUSTOMER_DATA_PATH = os.path.join( + os.path.expanduser('~'), '.aws', 'models' + ) + BUILTIN_EXTRAS_TYPES = ['sdk'] + + def __init__( + self, + extra_search_paths=None, + file_loader=None, + cache=None, + include_default_search_paths=True, + include_default_extras=True, + ): + self._cache = {} + if file_loader is None: + file_loader = self.FILE_LOADER_CLASS() + self.file_loader = file_loader + if extra_search_paths is not None: + self._search_paths = extra_search_paths + else: + self._search_paths = [] + if include_default_search_paths: + self._search_paths.extend( + [self.CUSTOMER_DATA_PATH, self.BUILTIN_DATA_PATH] + ) + + self._extras_types = [] + if include_default_extras: + self._extras_types.extend(self.BUILTIN_EXTRAS_TYPES) + + self._extras_processor = ExtrasProcessor() + + @property + def search_paths(self): + return self._search_paths + + @property + def extras_types(self): + return self._extras_types + + @instance_cache + def list_available_services(self, type_name): + """List all known services. + + This will traverse the search path and look for all known + services. + + :type type_name: str + :param type_name: The type of the service (service-2, + paginators-1, waiters-2, etc). This is needed because + the list of available services depends on the service + type. For example, the latest API version available for + a resource-1.json file may not be the latest API version + available for a services-2.json file. + + :return: A list of all services. The list of services will + be sorted. + + """ + services = set() + for possible_path in self._potential_locations(): + # Any directory in the search path is potentially a service. + # We'll collect any initial list of potential services, + # but we'll then need to further process these directories + # by searching for the corresponding type_name in each + # potential directory. + possible_services = [ + d + for d in os.listdir(possible_path) + if os.path.isdir(os.path.join(possible_path, d)) + ] + for service_name in possible_services: + full_dirname = os.path.join(possible_path, service_name) + api_versions = os.listdir(full_dirname) + for api_version in api_versions: + full_load_path = os.path.join( + full_dirname, api_version, type_name + ) + if self.file_loader.exists(full_load_path): + services.add(service_name) + break + return sorted(services) + + @instance_cache + def determine_latest_version(self, service_name, type_name): + """Find the latest API version available for a service. + + :type service_name: str + :param service_name: The name of the service. + + :type type_name: str + :param type_name: The type of the service (service-2, + paginators-1, waiters-2, etc). This is needed because + the latest API version available can depend on the service + type. For example, the latest API version available for + a resource-1.json file may not be the latest API version + available for a services-2.json file. + + :rtype: str + :return: The latest API version. If the service does not exist + or does not have any available API data, then a + ``DataNotFoundError`` exception will be raised. + + """ + return max(self.list_api_versions(service_name, type_name)) + + @instance_cache + def list_api_versions(self, service_name, type_name): + """List all API versions available for a particular service type + + :type service_name: str + :param service_name: The name of the service + + :type type_name: str + :param type_name: The type name for the service (i.e service-2, + paginators-1, etc.) + + :rtype: list + :return: A list of API version strings in sorted order. + + """ + known_api_versions = set() + for possible_path in self._potential_locations( + service_name, must_exist=True, is_dir=True + ): + for dirname in os.listdir(possible_path): + full_path = os.path.join(possible_path, dirname, type_name) + # Only add to the known_api_versions if the directory + # contains a service-2, paginators-1, etc. file corresponding + # to the type_name passed in. + if self.file_loader.exists(full_path): + known_api_versions.add(dirname) + if not known_api_versions: + raise DataNotFoundError(data_path=service_name) + return sorted(known_api_versions) + + @instance_cache + def load_service_model(self, service_name, type_name, api_version=None): + """Load a botocore service model + + This is the main method for loading botocore models (e.g. a service + model, pagination configs, waiter configs, etc.). + + :type service_name: str + :param service_name: The name of the service (e.g ``ec2``, ``s3``). + + :type type_name: str + :param type_name: The model type. Valid types include, but are not + limited to: ``service-2``, ``paginators-1``, ``waiters-2``. + + :type api_version: str + :param api_version: The API version to load. If this is not + provided, then the latest API version will be used. + + :type load_extras: bool + :param load_extras: Whether or not to load the tool extras which + contain additional data to be added to the model. + + :raises: UnknownServiceError if there is no known service with + the provided service_name. + + :raises: DataNotFoundError if no data could be found for the + service_name/type_name/api_version. + + :return: The loaded data, as a python type (e.g. dict, list, etc). + """ + # Wrapper around the load_data. This will calculate the path + # to call load_data with. + known_services = self.list_available_services(type_name) + if service_name not in known_services: + raise UnknownServiceError( + service_name=service_name, + known_service_names=', '.join(sorted(known_services)), + ) + if api_version is None: + api_version = self.determine_latest_version( + service_name, type_name + ) + full_path = os.path.join(service_name, api_version, type_name) + model = self.load_data(full_path) + + # Load in all the extras + extras_data = self._find_extras(service_name, type_name, api_version) + self._extras_processor.process(model, extras_data) + + return model + + def _find_extras(self, service_name, type_name, api_version): + """Creates an iterator over all the extras data.""" + for extras_type in self.extras_types: + extras_name = f'{type_name}.{extras_type}-extras' + full_path = os.path.join(service_name, api_version, extras_name) + + try: + yield self.load_data(full_path) + except DataNotFoundError: + pass + + @instance_cache + def load_data_with_path(self, name): + """Same as ``load_data`` but returns file path as second return value. + + :type name: str + :param name: The data path, i.e ``ec2/2015-03-01/service-2``. + + :return: Tuple of the loaded data and the path to the data file + where the data was loaded from. If no data could be found then a + DataNotFoundError is raised. + """ + for possible_path in self._potential_locations(name): + found = self.file_loader.load_file(possible_path) + if found is not None: + return found, possible_path + + # We didn't find anything that matched on any path. + raise DataNotFoundError(data_path=name) + + def load_data(self, name): + """Load data given a data path. + + This is a low level method that will search through the various + search paths until it's able to load a value. This is typically + only needed to load *non* model files (such as _endpoints and + _retry). If you need to load model files, you should prefer + ``load_service_model``. Use ``load_data_with_path`` to get the + data path of the data file as second return value. + + :type name: str + :param name: The data path, i.e ``ec2/2015-03-01/service-2``. + + :return: The loaded data. If no data could be found then + a DataNotFoundError is raised. + """ + data, _ = self.load_data_with_path(name) + return data + + def _potential_locations(self, name=None, must_exist=False, is_dir=False): + # Will give an iterator over the full path of potential locations + # according to the search path. + for path in self.search_paths: + if os.path.isdir(path): + full_path = path + if name is not None: + full_path = os.path.join(path, name) + if not must_exist: + yield full_path + else: + if is_dir and os.path.isdir(full_path): + yield full_path + elif os.path.exists(full_path): + yield full_path + + def is_builtin_path(self, path): + """Whether a given path is within the package's data directory. + + This method can be used together with load_data_with_path(name) + to determine if data has been loaded from a file bundled with the + package, as opposed to a file in a separate location. + + :type path: str + :param path: The file path to check. + + :return: Whether the given path is within the package's data directory. + """ + path = os.path.expanduser(os.path.expandvars(path)) + return path.startswith(self.BUILTIN_DATA_PATH) + + +class ExtrasProcessor: + """Processes data from extras files into service models.""" + + def process(self, original_model, extra_models): + """Processes data from a list of loaded extras files into a model + + :type original_model: dict + :param original_model: The service model to load all the extras into. + + :type extra_models: iterable of dict + :param extra_models: A list of loaded extras models. + """ + for extras in extra_models: + self._process(original_model, extras) + + def _process(self, model, extra_model): + """Process a single extras model into a service model.""" + if 'merge' in extra_model: + deep_merge(model, extra_model['merge']) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/model.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/model.py new file mode 100644 index 0000000000000000000000000000000000000000..b198652df3d5da3c22f6410c101a2265d8ee81ba --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/model.py @@ -0,0 +1,1006 @@ +# Copyright 2015 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +"""Abstractions to interact with service models.""" + +from collections import defaultdict +from typing import NamedTuple, Union + +from botocore.auth import resolve_auth_type +from botocore.compat import OrderedDict +from botocore.exceptions import ( + MissingServiceIdError, + UndefinedModelAttributeError, + UnsupportedServiceProtocolsError, +) +from botocore.utils import ( + PRIORITY_ORDERED_SUPPORTED_PROTOCOLS, + CachedProperty, + hyphenize_service_id, + instance_cache, +) + +NOT_SET = object() + + +class NoShapeFoundError(Exception): + pass + + +class InvalidShapeError(Exception): + pass + + +class OperationNotFoundError(Exception): + pass + + +class InvalidShapeReferenceError(Exception): + pass + + +class ServiceId(str): + def hyphenize(self): + return hyphenize_service_id(self) + + +class Shape: + """Object representing a shape from the service model.""" + + # To simplify serialization logic, all shape params that are + # related to serialization are moved from the top level hash into + # a 'serialization' hash. This list below contains the names of all + # the attributes that should be moved. + SERIALIZED_ATTRS = [ + 'locationName', + 'queryName', + 'flattened', + 'location', + 'payload', + 'streaming', + 'timestampFormat', + 'xmlNamespace', + 'resultWrapper', + 'xmlAttribute', + 'eventstream', + 'event', + 'eventheader', + 'eventpayload', + 'jsonvalue', + 'timestampFormat', + 'hostLabel', + ] + METADATA_ATTRS = [ + 'required', + 'min', + 'max', + 'pattern', + 'sensitive', + 'enum', + 'idempotencyToken', + 'error', + 'exception', + 'endpointdiscoveryid', + 'retryable', + 'document', + 'union', + 'contextParam', + 'clientContextParams', + 'requiresLength', + ] + MAP_TYPE = OrderedDict + + def __init__(self, shape_name, shape_model, shape_resolver=None): + """ + + :type shape_name: string + :param shape_name: The name of the shape. + + :type shape_model: dict + :param shape_model: The shape model. This would be the value + associated with the key in the "shapes" dict of the + service model (i.e ``model['shapes'][shape_name]``) + + :type shape_resolver: botocore.model.ShapeResolver + :param shape_resolver: A shape resolver object. This is used to + resolve references to other shapes. For scalar shape types + (string, integer, boolean, etc.), this argument is not + required. If a shape_resolver is not provided for a complex + type, then a ``ValueError`` will be raised when an attempt + to resolve a shape is made. + + """ + self.name = shape_name + self.type_name = shape_model['type'] + self.documentation = shape_model.get('documentation', '') + self._shape_model = shape_model + if shape_resolver is None: + # If a shape_resolver is not provided, we create an object + # that will throw errors if you attempt to resolve + # a shape. This is actually ok for scalar shapes + # because they don't need to resolve shapes and shouldn't + # be required to provide an object they won't use. + shape_resolver = UnresolvableShapeMap() + self._shape_resolver = shape_resolver + self._cache = {} + + @CachedProperty + def serialization(self): + """Serialization information about the shape. + + This contains information that may be needed for input serialization + or response parsing. This can include: + + * name + * queryName + * flattened + * location + * payload + * streaming + * xmlNamespace + * resultWrapper + * xmlAttribute + * jsonvalue + * timestampFormat + + :rtype: dict + :return: Serialization information about the shape. + + """ + model = self._shape_model + serialization = {} + for attr in self.SERIALIZED_ATTRS: + if attr in self._shape_model: + serialization[attr] = model[attr] + # For consistency, locationName is renamed to just 'name'. + if 'locationName' in serialization: + serialization['name'] = serialization.pop('locationName') + return serialization + + @CachedProperty + def metadata(self): + """Metadata about the shape. + + This requires optional information about the shape, including: + + * min + * max + * pattern + * enum + * sensitive + * required + * idempotencyToken + * document + * union + * contextParam + * clientContextParams + * requiresLength + + :rtype: dict + :return: Metadata about the shape. + + """ + model = self._shape_model + metadata = {} + for attr in self.METADATA_ATTRS: + if attr in self._shape_model: + metadata[attr] = model[attr] + return metadata + + @CachedProperty + def required_members(self): + """A list of members that are required. + + A structure shape can define members that are required. + This value will return a list of required members. If there + are no required members an empty list is returned. + + """ + return self.metadata.get('required', []) + + def _resolve_shape_ref(self, shape_ref): + return self._shape_resolver.resolve_shape_ref(shape_ref) + + def __repr__(self): + return f"<{self.__class__.__name__}({self.name})>" + + @property + def event_stream_name(self): + return None + + +class StructureShape(Shape): + @CachedProperty + def members(self): + members = self._shape_model.get('members', self.MAP_TYPE()) + # The members dict looks like: + # 'members': { + # 'MemberName': {'shape': 'shapeName'}, + # 'MemberName2': {'shape': 'shapeName'}, + # } + # We return a dict of member name to Shape object. + shape_members = self.MAP_TYPE() + for name, shape_ref in members.items(): + shape_members[name] = self._resolve_shape_ref(shape_ref) + return shape_members + + @CachedProperty + def event_stream_name(self): + for member_name, member in self.members.items(): + if member.serialization.get('eventstream'): + return member_name + return None + + @CachedProperty + def error_code(self): + if not self.metadata.get('exception', False): + return None + error_metadata = self.metadata.get("error", {}) + code = error_metadata.get("code") + if code: + return code + # Use the exception name if there is no explicit code modeled + return self.name + + @CachedProperty + def is_document_type(self): + return self.metadata.get('document', False) + + @CachedProperty + def is_tagged_union(self): + return self.metadata.get('union', False) + + +class ListShape(Shape): + @CachedProperty + def member(self): + return self._resolve_shape_ref(self._shape_model['member']) + + +class MapShape(Shape): + @CachedProperty + def key(self): + return self._resolve_shape_ref(self._shape_model['key']) + + @CachedProperty + def value(self): + return self._resolve_shape_ref(self._shape_model['value']) + + +class StringShape(Shape): + @CachedProperty + def enum(self): + return self.metadata.get('enum', []) + + +class StaticContextParameter(NamedTuple): + name: str + value: Union[bool, str] + + +class ContextParameter(NamedTuple): + name: str + member_name: str + + +class ClientContextParameter(NamedTuple): + name: str + type: str + documentation: str + + +class ServiceModel: + """ + + :ivar service_description: The parsed service description dictionary. + + """ + + def __init__(self, service_description, service_name=None): + """ + + :type service_description: dict + :param service_description: The service description model. This value + is obtained from a botocore.loader.Loader, or from directly loading + the file yourself:: + + service_description = json.load( + open('/path/to/service-description-model.json')) + model = ServiceModel(service_description) + + :type service_name: str + :param service_name: The name of the service. Normally this is + the endpoint prefix defined in the service_description. However, + you can override this value to provide a more convenient name. + This is done in a few places in botocore (ses instead of email, + emr instead of elasticmapreduce). If this value is not provided, + it will default to the endpointPrefix defined in the model. + + """ + self._service_description = service_description + # We want clients to be able to access metadata directly. + self.metadata = service_description.get('metadata', {}) + self._shape_resolver = ShapeResolver( + service_description.get('shapes', {}) + ) + self._signature_version = NOT_SET + self._service_name = service_name + self._instance_cache = {} + + def shape_for(self, shape_name, member_traits=None): + return self._shape_resolver.get_shape_by_name( + shape_name, member_traits + ) + + def shape_for_error_code(self, error_code): + return self._error_code_cache.get(error_code, None) + + @CachedProperty + def _error_code_cache(self): + error_code_cache = {} + for error_shape in self.error_shapes: + code = error_shape.error_code + error_code_cache[code] = error_shape + return error_code_cache + + def resolve_shape_ref(self, shape_ref): + return self._shape_resolver.resolve_shape_ref(shape_ref) + + @CachedProperty + def shape_names(self): + return list(self._service_description.get('shapes', {})) + + @CachedProperty + def error_shapes(self): + error_shapes = [] + for shape_name in self.shape_names: + error_shape = self.shape_for(shape_name) + if error_shape.metadata.get('exception', False): + error_shapes.append(error_shape) + return error_shapes + + @instance_cache + def operation_model(self, operation_name): + try: + model = self._service_description['operations'][operation_name] + except KeyError: + raise OperationNotFoundError(operation_name) + return OperationModel(model, self, operation_name) + + @CachedProperty + def documentation(self): + return self._service_description.get('documentation', '') + + @CachedProperty + def operation_names(self): + return list(self._service_description.get('operations', [])) + + @CachedProperty + def service_name(self): + """The name of the service. + + This defaults to the endpointPrefix defined in the service model. + However, this value can be overriden when a ``ServiceModel`` is + created. If a service_name was not provided when the ``ServiceModel`` + was created and if there is no endpointPrefix defined in the + service model, then an ``UndefinedModelAttributeError`` exception + will be raised. + + """ + if self._service_name is not None: + return self._service_name + else: + return self.endpoint_prefix + + @CachedProperty + def service_id(self): + try: + return ServiceId(self._get_metadata_property('serviceId')) + except UndefinedModelAttributeError: + raise MissingServiceIdError(service_name=self._service_name) + + @CachedProperty + def signing_name(self): + """The name to use when computing signatures. + + If the model does not define a signing name, this + value will be the endpoint prefix defined in the model. + """ + signing_name = self.metadata.get('signingName') + if signing_name is None: + signing_name = self.endpoint_prefix + return signing_name + + @CachedProperty + def api_version(self): + return self._get_metadata_property('apiVersion') + + @CachedProperty + def protocol(self): + return self._get_metadata_property('protocol') + + @CachedProperty + def protocols(self): + return self._get_metadata_property('protocols') + + @CachedProperty + def resolved_protocol(self): + # We need to ensure `protocols` exists in the metadata before attempting to + # access it directly since referencing service_model.protocols directly will + # raise an UndefinedModelAttributeError if protocols is not defined + if self.metadata.get('protocols'): + for protocol in PRIORITY_ORDERED_SUPPORTED_PROTOCOLS: + if protocol in self.protocols: + return protocol + raise UnsupportedServiceProtocolsError( + botocore_supported_protocols=PRIORITY_ORDERED_SUPPORTED_PROTOCOLS, + service_supported_protocols=self.protocols, + service=self.service_name, + ) + # If a service does not have a `protocols` trait, fall back to the legacy + # `protocol` trait + return self.protocol + + @CachedProperty + def endpoint_prefix(self): + return self._get_metadata_property('endpointPrefix') + + @CachedProperty + def endpoint_discovery_operation(self): + for operation in self.operation_names: + model = self.operation_model(operation) + if model.is_endpoint_discovery_operation: + return model + + @CachedProperty + def endpoint_discovery_required(self): + for operation in self.operation_names: + model = self.operation_model(operation) + if ( + model.endpoint_discovery is not None + and model.endpoint_discovery.get('required') + ): + return True + return False + + @CachedProperty + def client_context_parameters(self): + params = self._service_description.get('clientContextParams', {}) + return [ + ClientContextParameter( + name=param_name, + type=param_val['type'], + documentation=param_val['documentation'], + ) + for param_name, param_val in params.items() + ] + + def _get_metadata_property(self, name): + try: + return self.metadata[name] + except KeyError: + raise UndefinedModelAttributeError( + f'"{name}" not defined in the metadata of the model: {self}' + ) + + # Signature version is one of the rare properties + # that can be modified so a CachedProperty is not used here. + + @property + def signature_version(self): + if self._signature_version is NOT_SET: + signature_version = self.metadata.get('signatureVersion') + self._signature_version = signature_version + return self._signature_version + + @signature_version.setter + def signature_version(self, value): + self._signature_version = value + + @CachedProperty + def is_query_compatible(self): + return 'awsQueryCompatible' in self.metadata + + def __repr__(self): + return f'{self.__class__.__name__}({self.service_name})' + + +class OperationModel: + def __init__(self, operation_model, service_model, name=None): + """ + + :type operation_model: dict + :param operation_model: The operation model. This comes from the + service model, and is the value associated with the operation + name in the service model (i.e ``model['operations'][op_name]``). + + :type service_model: botocore.model.ServiceModel + :param service_model: The service model associated with the operation. + + :type name: string + :param name: The operation name. This is the operation name exposed to + the users of this model. This can potentially be different from + the "wire_name", which is the operation name that *must* by + provided over the wire. For example, given:: + + "CreateCloudFrontOriginAccessIdentity":{ + "name":"CreateCloudFrontOriginAccessIdentity2014_11_06", + ... + } + + The ``name`` would be ``CreateCloudFrontOriginAccessIdentity``, + but the ``self.wire_name`` would be + ``CreateCloudFrontOriginAccessIdentity2014_11_06``, which is the + value we must send in the corresponding HTTP request. + + """ + self._operation_model = operation_model + self._service_model = service_model + self._api_name = name + # Clients can access '.name' to get the operation name + # and '.metadata' to get the top level metdata of the service. + self._wire_name = operation_model.get('name') + self.metadata = service_model.metadata + self.http = operation_model.get('http', {}) + + @CachedProperty + def name(self): + if self._api_name is not None: + return self._api_name + else: + return self.wire_name + + @property + def wire_name(self): + """The wire name of the operation. + + In many situations this is the same value as the + ``name``, value, but in some services, the operation name + exposed to the user is different from the operation name + we send across the wire (e.g cloudfront). + + Any serialization code should use ``wire_name``. + + """ + return self._operation_model.get('name') + + @property + def service_model(self): + return self._service_model + + @CachedProperty + def documentation(self): + return self._operation_model.get('documentation', '') + + @CachedProperty + def deprecated(self): + return self._operation_model.get('deprecated', False) + + @CachedProperty + def endpoint_discovery(self): + # Explicit None default. An empty dictionary for this trait means it is + # enabled but not required to be used. + return self._operation_model.get('endpointdiscovery', None) + + @CachedProperty + def is_endpoint_discovery_operation(self): + return self._operation_model.get('endpointoperation', False) + + @CachedProperty + def input_shape(self): + if 'input' not in self._operation_model: + # Some operations do not accept any input and do not define an + # input shape. + return None + return self._service_model.resolve_shape_ref( + self._operation_model['input'] + ) + + @CachedProperty + def output_shape(self): + if 'output' not in self._operation_model: + # Some operations do not define an output shape, + # in which case we return None to indicate the + # operation has no expected output. + return None + return self._service_model.resolve_shape_ref( + self._operation_model['output'] + ) + + @CachedProperty + def idempotent_members(self): + input_shape = self.input_shape + if not input_shape: + return [] + + return [ + name + for (name, shape) in input_shape.members.items() + if 'idempotencyToken' in shape.metadata + and shape.metadata['idempotencyToken'] + ] + + @CachedProperty + def static_context_parameters(self): + params = self._operation_model.get('staticContextParams', {}) + return [ + StaticContextParameter(name=name, value=props.get('value')) + for name, props in params.items() + ] + + @CachedProperty + def context_parameters(self): + if not self.input_shape: + return [] + + return [ + ContextParameter( + name=shape.metadata['contextParam']['name'], + member_name=name, + ) + for name, shape in self.input_shape.members.items() + if 'contextParam' in shape.metadata + and 'name' in shape.metadata['contextParam'] + ] + + @CachedProperty + def operation_context_parameters(self): + return self._operation_model.get('operationContextParams', []) + + @CachedProperty + def request_compression(self): + return self._operation_model.get('requestcompression') + + @CachedProperty + def auth(self): + return self._operation_model.get('auth') + + @CachedProperty + def auth_type(self): + return self._operation_model.get('authtype') + + @CachedProperty + def resolved_auth_type(self): + if self.auth: + return resolve_auth_type(self.auth) + return self.auth_type + + @CachedProperty + def unsigned_payload(self): + return self._operation_model.get('unsignedPayload') + + @CachedProperty + def error_shapes(self): + shapes = self._operation_model.get("errors", []) + return list(self._service_model.resolve_shape_ref(s) for s in shapes) + + @CachedProperty + def endpoint(self): + return self._operation_model.get('endpoint') + + @CachedProperty + def http_checksum_required(self): + return self._operation_model.get('httpChecksumRequired', False) + + @CachedProperty + def http_checksum(self): + return self._operation_model.get('httpChecksum', {}) + + @CachedProperty + def has_event_stream_input(self): + return self.get_event_stream_input() is not None + + @CachedProperty + def has_event_stream_output(self): + return self.get_event_stream_output() is not None + + def get_event_stream_input(self): + return self._get_event_stream(self.input_shape) + + def get_event_stream_output(self): + return self._get_event_stream(self.output_shape) + + def _get_event_stream(self, shape): + """Returns the event stream member's shape if any or None otherwise.""" + if shape is None: + return None + event_name = shape.event_stream_name + if event_name: + return shape.members[event_name] + return None + + @CachedProperty + def has_streaming_input(self): + return self.get_streaming_input() is not None + + @CachedProperty + def has_streaming_output(self): + return self.get_streaming_output() is not None + + def get_streaming_input(self): + return self._get_streaming_body(self.input_shape) + + def get_streaming_output(self): + return self._get_streaming_body(self.output_shape) + + def _get_streaming_body(self, shape): + """Returns the streaming member's shape if any; or None otherwise.""" + if shape is None: + return None + payload = shape.serialization.get('payload') + if payload is not None: + payload_shape = shape.members[payload] + if payload_shape.type_name == 'blob': + return payload_shape + return None + + def __repr__(self): + return f'{self.__class__.__name__}(name={self.name})' + + +class ShapeResolver: + """Resolves shape references.""" + + # Any type not in this mapping will default to the Shape class. + SHAPE_CLASSES = { + 'structure': StructureShape, + 'list': ListShape, + 'map': MapShape, + 'string': StringShape, + } + + def __init__(self, shape_map): + self._shape_map = shape_map + self._shape_cache = {} + + def get_shape_by_name(self, shape_name, member_traits=None): + try: + shape_model = self._shape_map[shape_name] + except KeyError: + raise NoShapeFoundError(shape_name) + try: + shape_cls = self.SHAPE_CLASSES.get(shape_model['type'], Shape) + except KeyError: + raise InvalidShapeError( + f"Shape is missing required key 'type': {shape_model}" + ) + if member_traits: + shape_model = shape_model.copy() + shape_model.update(member_traits) + result = shape_cls(shape_name, shape_model, self) + return result + + def resolve_shape_ref(self, shape_ref): + # A shape_ref is a dict that has a 'shape' key that + # refers to a shape name as well as any additional + # member traits that are then merged over the shape + # definition. For example: + # {"shape": "StringType", "locationName": "Foobar"} + if len(shape_ref) == 1 and 'shape' in shape_ref: + # It's just a shape ref with no member traits, we can avoid + # a .copy(). This is the common case so it's specifically + # called out here. + return self.get_shape_by_name(shape_ref['shape']) + else: + member_traits = shape_ref.copy() + try: + shape_name = member_traits.pop('shape') + except KeyError: + raise InvalidShapeReferenceError( + f"Invalid model, missing shape reference: {shape_ref}" + ) + return self.get_shape_by_name(shape_name, member_traits) + + +class UnresolvableShapeMap: + """A ShapeResolver that will throw ValueErrors when shapes are resolved.""" + + def get_shape_by_name(self, shape_name, member_traits=None): + raise ValueError( + f"Attempted to lookup shape '{shape_name}', but no shape map was provided." + ) + + def resolve_shape_ref(self, shape_ref): + raise ValueError( + f"Attempted to resolve shape '{shape_ref}', but no shape " + f"map was provided." + ) + + +class DenormalizedStructureBuilder: + """Build a StructureShape from a denormalized model. + + This is a convenience builder class that makes it easy to construct + ``StructureShape``s based on a denormalized model. + + It will handle the details of creating unique shape names and creating + the appropriate shape map needed by the ``StructureShape`` class. + + Example usage:: + + builder = DenormalizedStructureBuilder() + shape = builder.with_members({ + 'A': { + 'type': 'structure', + 'members': { + 'B': { + 'type': 'structure', + 'members': { + 'C': { + 'type': 'string', + } + } + } + } + } + }).build_model() + # ``shape`` is now an instance of botocore.model.StructureShape + + :type dict_type: class + :param dict_type: The dictionary type to use, allowing you to opt-in + to using OrderedDict or another dict type. This can + be particularly useful for testing when order + matters, such as for documentation. + + """ + + SCALAR_TYPES = ( + 'string', + 'integer', + 'boolean', + 'blob', + 'float', + 'timestamp', + 'long', + 'double', + 'char', + ) + + def __init__(self, name=None): + self.members = OrderedDict() + self._name_generator = ShapeNameGenerator() + if name is None: + self.name = self._name_generator.new_shape_name('structure') + + def with_members(self, members): + """ + + :type members: dict + :param members: The denormalized members. + + :return: self + + """ + self._members = members + return self + + def build_model(self): + """Build the model based on the provided members. + + :rtype: botocore.model.StructureShape + :return: The built StructureShape object. + + """ + shapes = OrderedDict() + denormalized = { + 'type': 'structure', + 'members': self._members, + } + self._build_model(denormalized, shapes, self.name) + resolver = ShapeResolver(shape_map=shapes) + return StructureShape( + shape_name=self.name, + shape_model=shapes[self.name], + shape_resolver=resolver, + ) + + def _build_model(self, model, shapes, shape_name): + if model['type'] == 'structure': + shapes[shape_name] = self._build_structure(model, shapes) + elif model['type'] == 'list': + shapes[shape_name] = self._build_list(model, shapes) + elif model['type'] == 'map': + shapes[shape_name] = self._build_map(model, shapes) + elif model['type'] in self.SCALAR_TYPES: + shapes[shape_name] = self._build_scalar(model) + else: + raise InvalidShapeError(f"Unknown shape type: {model['type']}") + + def _build_structure(self, model, shapes): + members = OrderedDict() + shape = self._build_initial_shape(model) + shape['members'] = members + + for name, member_model in model.get('members', OrderedDict()).items(): + member_shape_name = self._get_shape_name(member_model) + members[name] = {'shape': member_shape_name} + self._build_model(member_model, shapes, member_shape_name) + return shape + + def _build_list(self, model, shapes): + member_shape_name = self._get_shape_name(model) + shape = self._build_initial_shape(model) + shape['member'] = {'shape': member_shape_name} + self._build_model(model['member'], shapes, member_shape_name) + return shape + + def _build_map(self, model, shapes): + key_shape_name = self._get_shape_name(model['key']) + value_shape_name = self._get_shape_name(model['value']) + shape = self._build_initial_shape(model) + shape['key'] = {'shape': key_shape_name} + shape['value'] = {'shape': value_shape_name} + self._build_model(model['key'], shapes, key_shape_name) + self._build_model(model['value'], shapes, value_shape_name) + return shape + + def _build_initial_shape(self, model): + shape = { + 'type': model['type'], + } + if 'documentation' in model: + shape['documentation'] = model['documentation'] + for attr in Shape.METADATA_ATTRS: + if attr in model: + shape[attr] = model[attr] + return shape + + def _build_scalar(self, model): + return self._build_initial_shape(model) + + def _get_shape_name(self, model): + if 'shape_name' in model: + return model['shape_name'] + else: + return self._name_generator.new_shape_name(model['type']) + + +class ShapeNameGenerator: + """Generate unique shape names for a type. + + This class can be used in conjunction with the DenormalizedStructureBuilder + to generate unique shape names for a given type. + + """ + + def __init__(self): + self._name_cache = defaultdict(int) + + def new_shape_name(self, type_name): + """Generate a unique shape name. + + This method will guarantee a unique shape name each time it is + called with the same type. + + :: + + >>> s = ShapeNameGenerator() + >>> s.new_shape_name('structure') + 'StructureType1' + >>> s.new_shape_name('structure') + 'StructureType2' + >>> s.new_shape_name('list') + 'ListType1' + >>> s.new_shape_name('list') + 'ListType2' + + + :type type_name: string + :param type_name: The type name (structure, list, map, string, etc.) + + :rtype: string + :return: A unique shape name for the given type + + """ + self._name_cache[type_name] += 1 + current_index = self._name_cache[type_name] + return f'{type_name.capitalize()}Type{current_index}' diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/monitoring.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/monitoring.py new file mode 100644 index 0000000000000000000000000000000000000000..d57cf0ae6670e52c56d20e8f4835d711e82d2019 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/monitoring.py @@ -0,0 +1,586 @@ +# Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import json +import logging +import re +import time + +from botocore.compat import ensure_bytes, ensure_unicode, urlparse +from botocore.retryhandler import EXCEPTION_MAP as RETRYABLE_EXCEPTIONS + +logger = logging.getLogger(__name__) + + +class Monitor: + _EVENTS_TO_REGISTER = [ + 'before-parameter-build', + 'request-created', + 'response-received', + 'after-call', + 'after-call-error', + ] + + def __init__(self, adapter, publisher): + """Abstraction for monitoring clients API calls + + :param adapter: An adapter that takes event emitter events + and produces monitor events + + :param publisher: A publisher for generated monitor events + """ + self._adapter = adapter + self._publisher = publisher + + def register(self, event_emitter): + """Register an event emitter to the monitor""" + for event_to_register in self._EVENTS_TO_REGISTER: + event_emitter.register_last(event_to_register, self.capture) + + def capture(self, event_name, **payload): + """Captures an incoming event from the event emitter + + It will feed an event emitter event to the monitor's adaptor to create + a monitor event and then publish that event to the monitor's publisher. + """ + try: + monitor_event = self._adapter.feed(event_name, payload) + if monitor_event: + self._publisher.publish(monitor_event) + except Exception as e: + logger.debug( + 'Exception %s raised by client monitor in handling event %s', + e, + event_name, + exc_info=True, + ) + + +class MonitorEventAdapter: + def __init__(self, time=time.time): + """Adapts event emitter events to produce monitor events + + :type time: callable + :param time: A callable that produces the current time + """ + self._time = time + + def feed(self, emitter_event_name, emitter_payload): + """Feed an event emitter event to generate a monitor event + + :type emitter_event_name: str + :param emitter_event_name: The name of the event emitted + + :type emitter_payload: dict + :param emitter_payload: The payload to associated to the event + emitted + + :rtype: BaseMonitorEvent + :returns: A monitor event based on the event emitter events + fired + """ + return self._get_handler(emitter_event_name)(**emitter_payload) + + def _get_handler(self, event_name): + return getattr( + self, '_handle_' + event_name.split('.')[0].replace('-', '_') + ) + + def _handle_before_parameter_build(self, model, context, **kwargs): + context['current_api_call_event'] = APICallEvent( + service=model.service_model.service_id, + operation=model.wire_name, + timestamp=self._get_current_time(), + ) + + def _handle_request_created(self, request, **kwargs): + context = request.context + new_attempt_event = context[ + 'current_api_call_event' + ].new_api_call_attempt(timestamp=self._get_current_time()) + new_attempt_event.request_headers = request.headers + new_attempt_event.url = request.url + context['current_api_call_attempt_event'] = new_attempt_event + + def _handle_response_received( + self, parsed_response, context, exception, **kwargs + ): + attempt_event = context.pop('current_api_call_attempt_event') + attempt_event.latency = self._get_latency(attempt_event) + if parsed_response is not None: + attempt_event.http_status_code = parsed_response[ + 'ResponseMetadata' + ]['HTTPStatusCode'] + attempt_event.response_headers = parsed_response[ + 'ResponseMetadata' + ]['HTTPHeaders'] + attempt_event.parsed_error = parsed_response.get('Error') + else: + attempt_event.wire_exception = exception + return attempt_event + + def _handle_after_call(self, context, parsed, **kwargs): + context['current_api_call_event'].retries_exceeded = parsed[ + 'ResponseMetadata' + ].get('MaxAttemptsReached', False) + return self._complete_api_call(context) + + def _handle_after_call_error(self, context, exception, **kwargs): + # If the after-call-error was emitted and the error being raised + # was a retryable connection error, then the retries must have exceeded + # for that exception as this event gets emitted **after** retries + # happen. + context[ + 'current_api_call_event' + ].retries_exceeded = self._is_retryable_exception(exception) + return self._complete_api_call(context) + + def _is_retryable_exception(self, exception): + return isinstance( + exception, tuple(RETRYABLE_EXCEPTIONS['GENERAL_CONNECTION_ERROR']) + ) + + def _complete_api_call(self, context): + call_event = context.pop('current_api_call_event') + call_event.latency = self._get_latency(call_event) + return call_event + + def _get_latency(self, event): + return self._get_current_time() - event.timestamp + + def _get_current_time(self): + return int(self._time() * 1000) + + +class BaseMonitorEvent: + def __init__(self, service, operation, timestamp): + """Base monitor event + + :type service: str + :param service: A string identifying the service associated to + the event + + :type operation: str + :param operation: A string identifying the operation of service + associated to the event + + :type timestamp: int + :param timestamp: Epoch time in milliseconds from when the event began + """ + self.service = service + self.operation = operation + self.timestamp = timestamp + + def __repr__(self): + return f'{self.__class__.__name__}({self.__dict__!r})' + + def __eq__(self, other): + if isinstance(other, self.__class__): + return self.__dict__ == other.__dict__ + return False + + +class APICallEvent(BaseMonitorEvent): + def __init__( + self, + service, + operation, + timestamp, + latency=None, + attempts=None, + retries_exceeded=False, + ): + """Monitor event for a single API call + + This event corresponds to a single client method call, which includes + every HTTP requests attempt made in order to complete the client call + + :type service: str + :param service: A string identifying the service associated to + the event + + :type operation: str + :param operation: A string identifying the operation of service + associated to the event + + :type timestamp: int + :param timestamp: Epoch time in milliseconds from when the event began + + :type latency: int + :param latency: The time in milliseconds to complete the client call + + :type attempts: list + :param attempts: The list of APICallAttempts associated to the + APICall + + :type retries_exceeded: bool + :param retries_exceeded: True if API call exceeded retries. False + otherwise + """ + super().__init__( + service=service, operation=operation, timestamp=timestamp + ) + self.latency = latency + self.attempts = attempts + if attempts is None: + self.attempts = [] + self.retries_exceeded = retries_exceeded + + def new_api_call_attempt(self, timestamp): + """Instantiates APICallAttemptEvent associated to the APICallEvent + + :type timestamp: int + :param timestamp: Epoch time in milliseconds to associate to the + APICallAttemptEvent + """ + attempt_event = APICallAttemptEvent( + service=self.service, operation=self.operation, timestamp=timestamp + ) + self.attempts.append(attempt_event) + return attempt_event + + +class APICallAttemptEvent(BaseMonitorEvent): + def __init__( + self, + service, + operation, + timestamp, + latency=None, + url=None, + http_status_code=None, + request_headers=None, + response_headers=None, + parsed_error=None, + wire_exception=None, + ): + """Monitor event for a single API call attempt + + This event corresponds to a single HTTP request attempt in completing + the entire client method call. + + :type service: str + :param service: A string identifying the service associated to + the event + + :type operation: str + :param operation: A string identifying the operation of service + associated to the event + + :type timestamp: int + :param timestamp: Epoch time in milliseconds from when the HTTP request + started + + :type latency: int + :param latency: The time in milliseconds to complete the HTTP request + whether it succeeded or failed + + :type url: str + :param url: The URL the attempt was sent to + + :type http_status_code: int + :param http_status_code: The HTTP status code of the HTTP response + if there was a response + + :type request_headers: dict + :param request_headers: The HTTP headers sent in making the HTTP + request + + :type response_headers: dict + :param response_headers: The HTTP headers returned in the HTTP response + if there was a response + + :type parsed_error: dict + :param parsed_error: The error parsed if the service returned an + error back + + :type wire_exception: Exception + :param wire_exception: The exception raised in sending the HTTP + request (i.e. ConnectionError) + """ + super().__init__( + service=service, operation=operation, timestamp=timestamp + ) + self.latency = latency + self.url = url + self.http_status_code = http_status_code + self.request_headers = request_headers + self.response_headers = response_headers + self.parsed_error = parsed_error + self.wire_exception = wire_exception + + +class CSMSerializer: + _MAX_CLIENT_ID_LENGTH = 255 + _MAX_EXCEPTION_CLASS_LENGTH = 128 + _MAX_ERROR_CODE_LENGTH = 128 + _MAX_USER_AGENT_LENGTH = 256 + _MAX_MESSAGE_LENGTH = 512 + _RESPONSE_HEADERS_TO_EVENT_ENTRIES = { + 'x-amzn-requestid': 'XAmznRequestId', + 'x-amz-request-id': 'XAmzRequestId', + 'x-amz-id-2': 'XAmzId2', + } + _AUTH_REGEXS = { + 'v4': re.compile( + r'AWS4-HMAC-SHA256 ' + r'Credential=(?P\w+)/\d+/' + r'(?P[a-z0-9-]+)/' + ), + 's3': re.compile(r'AWS (?P\w+):'), + } + _SERIALIZEABLE_EVENT_PROPERTIES = [ + 'service', + 'operation', + 'timestamp', + 'attempts', + 'latency', + 'retries_exceeded', + 'url', + 'request_headers', + 'http_status_code', + 'response_headers', + 'parsed_error', + 'wire_exception', + ] + + def __init__(self, csm_client_id): + """Serializes monitor events to CSM (Client Side Monitoring) format + + :type csm_client_id: str + :param csm_client_id: The application identifier to associate + to the serialized events + """ + self._validate_client_id(csm_client_id) + self.csm_client_id = csm_client_id + + def _validate_client_id(self, csm_client_id): + if len(csm_client_id) > self._MAX_CLIENT_ID_LENGTH: + raise ValueError( + f'The value provided for csm_client_id: {csm_client_id} exceeds ' + f'the maximum length of {self._MAX_CLIENT_ID_LENGTH} characters' + ) + + def serialize(self, event): + """Serializes a monitor event to the CSM format + + :type event: BaseMonitorEvent + :param event: The event to serialize to bytes + + :rtype: bytes + :returns: The CSM serialized form of the event + """ + event_dict = self._get_base_event_dict(event) + event_type = self._get_event_type(event) + event_dict['Type'] = event_type + for attr in self._SERIALIZEABLE_EVENT_PROPERTIES: + value = getattr(event, attr, None) + if value is not None: + getattr(self, '_serialize_' + attr)( + value, event_dict, event_type=event_type + ) + return ensure_bytes(json.dumps(event_dict, separators=(',', ':'))) + + def _get_base_event_dict(self, event): + return { + 'Version': 1, + 'ClientId': self.csm_client_id, + } + + def _serialize_service(self, service, event_dict, **kwargs): + event_dict['Service'] = service + + def _serialize_operation(self, operation, event_dict, **kwargs): + event_dict['Api'] = operation + + def _serialize_timestamp(self, timestamp, event_dict, **kwargs): + event_dict['Timestamp'] = timestamp + + def _serialize_attempts(self, attempts, event_dict, **kwargs): + event_dict['AttemptCount'] = len(attempts) + if attempts: + self._add_fields_from_last_attempt(event_dict, attempts[-1]) + + def _add_fields_from_last_attempt(self, event_dict, last_attempt): + if last_attempt.request_headers: + # It does not matter which attempt to use to grab the region + # for the ApiCall event, but SDKs typically do the last one. + region = self._get_region(last_attempt.request_headers) + if region is not None: + event_dict['Region'] = region + event_dict['UserAgent'] = self._get_user_agent( + last_attempt.request_headers + ) + if last_attempt.http_status_code is not None: + event_dict['FinalHttpStatusCode'] = last_attempt.http_status_code + if last_attempt.parsed_error is not None: + self._serialize_parsed_error( + last_attempt.parsed_error, event_dict, 'ApiCall' + ) + if last_attempt.wire_exception is not None: + self._serialize_wire_exception( + last_attempt.wire_exception, event_dict, 'ApiCall' + ) + + def _serialize_latency(self, latency, event_dict, event_type): + if event_type == 'ApiCall': + event_dict['Latency'] = latency + elif event_type == 'ApiCallAttempt': + event_dict['AttemptLatency'] = latency + + def _serialize_retries_exceeded( + self, retries_exceeded, event_dict, **kwargs + ): + event_dict['MaxRetriesExceeded'] = 1 if retries_exceeded else 0 + + def _serialize_url(self, url, event_dict, **kwargs): + event_dict['Fqdn'] = urlparse(url).netloc + + def _serialize_request_headers( + self, request_headers, event_dict, **kwargs + ): + event_dict['UserAgent'] = self._get_user_agent(request_headers) + if self._is_signed(request_headers): + event_dict['AccessKey'] = self._get_access_key(request_headers) + region = self._get_region(request_headers) + if region is not None: + event_dict['Region'] = region + if 'X-Amz-Security-Token' in request_headers: + event_dict['SessionToken'] = request_headers[ + 'X-Amz-Security-Token' + ] + + def _serialize_http_status_code( + self, http_status_code, event_dict, **kwargs + ): + event_dict['HttpStatusCode'] = http_status_code + + def _serialize_response_headers( + self, response_headers, event_dict, **kwargs + ): + for header, entry in self._RESPONSE_HEADERS_TO_EVENT_ENTRIES.items(): + if header in response_headers: + event_dict[entry] = response_headers[header] + + def _serialize_parsed_error( + self, parsed_error, event_dict, event_type, **kwargs + ): + field_prefix = 'Final' if event_type == 'ApiCall' else '' + event_dict[field_prefix + 'AwsException'] = self._truncate( + parsed_error['Code'], self._MAX_ERROR_CODE_LENGTH + ) + event_dict[field_prefix + 'AwsExceptionMessage'] = self._truncate( + parsed_error['Message'], self._MAX_MESSAGE_LENGTH + ) + + def _serialize_wire_exception( + self, wire_exception, event_dict, event_type, **kwargs + ): + field_prefix = 'Final' if event_type == 'ApiCall' else '' + event_dict[field_prefix + 'SdkException'] = self._truncate( + wire_exception.__class__.__name__, self._MAX_EXCEPTION_CLASS_LENGTH + ) + event_dict[field_prefix + 'SdkExceptionMessage'] = self._truncate( + str(wire_exception), self._MAX_MESSAGE_LENGTH + ) + + def _get_event_type(self, event): + if isinstance(event, APICallEvent): + return 'ApiCall' + elif isinstance(event, APICallAttemptEvent): + return 'ApiCallAttempt' + + def _get_access_key(self, request_headers): + auth_val = self._get_auth_value(request_headers) + _, auth_match = self._get_auth_match(auth_val) + return auth_match.group('access_key') + + def _get_region(self, request_headers): + if not self._is_signed(request_headers): + return None + auth_val = self._get_auth_value(request_headers) + signature_version, auth_match = self._get_auth_match(auth_val) + if signature_version != 'v4': + return None + return auth_match.group('signing_region') + + def _get_user_agent(self, request_headers): + return self._truncate( + ensure_unicode(request_headers.get('User-Agent', '')), + self._MAX_USER_AGENT_LENGTH, + ) + + def _is_signed(self, request_headers): + return 'Authorization' in request_headers + + def _get_auth_value(self, request_headers): + return ensure_unicode(request_headers['Authorization']) + + def _get_auth_match(self, auth_val): + for signature_version, regex in self._AUTH_REGEXS.items(): + match = regex.match(auth_val) + if match: + return signature_version, match + return None, None + + def _truncate(self, text, max_length): + if len(text) > max_length: + logger.debug( + 'Truncating following value to maximum length of %s: %s', + text, + max_length, + ) + return text[:max_length] + return text + + +class SocketPublisher: + _MAX_MONITOR_EVENT_LENGTH = 8 * 1024 + + def __init__(self, socket, host, port, serializer): + """Publishes monitor events to a socket + + :type socket: socket.socket + :param socket: The socket object to use to publish events + + :type host: string + :param host: The host to send events to + + :type port: integer + :param port: The port on the host to send events to + + :param serializer: The serializer to use to serialize the event + to a form that can be published to the socket. This must + have a `serialize()` method that accepts a monitor event + and return bytes + """ + self._socket = socket + self._address = (host, port) + self._serializer = serializer + + def publish(self, event): + """Publishes a specified monitor event + + :type event: BaseMonitorEvent + :param event: The monitor event to be sent + over the publisher's socket to the desired address. + """ + serialized_event = self._serializer.serialize(event) + if len(serialized_event) > self._MAX_MONITOR_EVENT_LENGTH: + logger.debug( + 'Serialized event of size %s exceeds the maximum length ' + 'allowed: %s. Not sending event to socket.', + len(serialized_event), + self._MAX_MONITOR_EVENT_LENGTH, + ) + return + self._socket.sendto(serialized_event, self._address) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/paginate.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/paginate.py new file mode 100644 index 0000000000000000000000000000000000000000..63b4a29f809db5994397ca6c4b1310a100d32fed --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/paginate.py @@ -0,0 +1,728 @@ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. + +import base64 +import json +import logging +from functools import partial +from itertools import tee + +import jmespath + +from botocore.context import with_current_context +from botocore.exceptions import PaginationError +from botocore.useragent import register_feature_id +from botocore.utils import merge_dicts, set_value_from_jmespath + +log = logging.getLogger(__name__) + + +class TokenEncoder: + """Encodes dictionaries into opaque strings. + + This for the most part json dumps + base64 encoding, but also supports + having bytes in the dictionary in addition to the types that json can + handle by default. + + This is intended for use in encoding pagination tokens, which in some + cases can be complex structures and / or contain bytes. + """ + + def encode(self, token): + """Encodes a dictionary to an opaque string. + + :type token: dict + :param token: A dictionary containing pagination information, + particularly the service pagination token(s) but also other boto + metadata. + + :rtype: str + :returns: An opaque string + """ + try: + # Try just using json dumps first to avoid having to traverse + # and encode the dict. In 99.9999% of cases this will work. + json_string = json.dumps(token) + except (TypeError, UnicodeDecodeError): + # If normal dumping failed, go through and base64 encode all bytes. + encoded_token, encoded_keys = self._encode(token, []) + + # Save the list of all the encoded key paths. We can safely + # assume that no service will ever use this key. + encoded_token['boto_encoded_keys'] = encoded_keys + + # Now that the bytes are all encoded, dump the json. + json_string = json.dumps(encoded_token) + + # base64 encode the json string to produce an opaque token string. + return base64.b64encode(json_string.encode('utf-8')).decode('utf-8') + + def _encode(self, data, path): + """Encode bytes in given data, keeping track of the path traversed.""" + if isinstance(data, dict): + return self._encode_dict(data, path) + elif isinstance(data, list): + return self._encode_list(data, path) + elif isinstance(data, bytes): + return self._encode_bytes(data, path) + else: + return data, [] + + def _encode_list(self, data, path): + """Encode any bytes in a list, noting the index of what is encoded.""" + new_data = [] + encoded = [] + for i, value in enumerate(data): + new_path = path + [i] + new_value, new_encoded = self._encode(value, new_path) + new_data.append(new_value) + encoded.extend(new_encoded) + return new_data, encoded + + def _encode_dict(self, data, path): + """Encode any bytes in a dict, noting the index of what is encoded.""" + new_data = {} + encoded = [] + for key, value in data.items(): + new_path = path + [key] + new_value, new_encoded = self._encode(value, new_path) + new_data[key] = new_value + encoded.extend(new_encoded) + return new_data, encoded + + def _encode_bytes(self, data, path): + """Base64 encode a byte string.""" + return base64.b64encode(data).decode('utf-8'), [path] + + +class TokenDecoder: + """Decodes token strings back into dictionaries. + + This performs the inverse operation to the TokenEncoder, accepting + opaque strings and decoding them into a useable form. + """ + + def decode(self, token): + """Decodes an opaque string to a dictionary. + + :type token: str + :param token: A token string given by the botocore pagination + interface. + + :rtype: dict + :returns: A dictionary containing pagination information, + particularly the service pagination token(s) but also other boto + metadata. + """ + json_string = base64.b64decode(token.encode('utf-8')).decode('utf-8') + decoded_token = json.loads(json_string) + + # Remove the encoding metadata as it is read since it will no longer + # be needed. + encoded_keys = decoded_token.pop('boto_encoded_keys', None) + if encoded_keys is None: + return decoded_token + else: + return self._decode(decoded_token, encoded_keys) + + def _decode(self, token, encoded_keys): + """Find each encoded value and decode it.""" + for key in encoded_keys: + encoded = self._path_get(token, key) + decoded = base64.b64decode(encoded.encode('utf-8')) + self._path_set(token, key, decoded) + return token + + def _path_get(self, data, path): + """Return the nested data at the given path. + + For instance: + data = {'foo': ['bar', 'baz']} + path = ['foo', 0] + ==> 'bar' + """ + # jmespath isn't used here because it would be difficult to actually + # create the jmespath query when taking all of the unknowns of key + # structure into account. Gross though this is, it is simple and not + # very error prone. + d = data + for step in path: + d = d[step] + return d + + def _path_set(self, data, path, value): + """Set the value of a key in the given data. + + Example: + data = {'foo': ['bar', 'baz']} + path = ['foo', 1] + value = 'bin' + ==> data = {'foo': ['bar', 'bin']} + """ + container = self._path_get(data, path[:-1]) + container[path[-1]] = value + + +class PaginatorModel: + def __init__(self, paginator_config): + self._paginator_config = paginator_config['pagination'] + + def get_paginator(self, operation_name): + try: + single_paginator_config = self._paginator_config[operation_name] + except KeyError: + raise ValueError( + f"Paginator for operation does not exist: {operation_name}" + ) + return single_paginator_config + + +class PageIterator: + """An iterable object to paginate API results. + Please note it is NOT a python iterator. + Use ``iter`` to wrap this as a generator. + """ + + def __init__( + self, + method, + input_token, + output_token, + more_results, + result_keys, + non_aggregate_keys, + limit_key, + max_items, + starting_token, + page_size, + op_kwargs, + ): + self._method = method + self._input_token = input_token + self._output_token = output_token + self._more_results = more_results + self._result_keys = result_keys + self._max_items = max_items + self._limit_key = limit_key + self._starting_token = starting_token + self._page_size = page_size + self._op_kwargs = op_kwargs + self._resume_token = None + self._non_aggregate_key_exprs = non_aggregate_keys + self._non_aggregate_part = {} + self._token_encoder = TokenEncoder() + self._token_decoder = TokenDecoder() + + @property + def result_keys(self): + return self._result_keys + + @property + def resume_token(self): + """Token to specify to resume pagination.""" + return self._resume_token + + @resume_token.setter + def resume_token(self, value): + if not isinstance(value, dict): + raise ValueError(f"Bad starting token: {value}") + + if 'boto_truncate_amount' in value: + token_keys = sorted(self._input_token + ['boto_truncate_amount']) + else: + token_keys = sorted(self._input_token) + dict_keys = sorted(value.keys()) + + if token_keys == dict_keys: + self._resume_token = self._token_encoder.encode(value) + else: + raise ValueError(f"Bad starting token: {value}") + + @property + def non_aggregate_part(self): + return self._non_aggregate_part + + def __iter__(self): + current_kwargs = self._op_kwargs + previous_next_token = None + next_token = {key: None for key in self._input_token} + if self._starting_token is not None: + # If the starting token exists, populate the next_token with the + # values inside it. This ensures that we have the service's + # pagination token on hand if we need to truncate after the + # first response. + next_token = self._parse_starting_token()[0] + # The number of items from result_key we've seen so far. + total_items = 0 + first_request = True + primary_result_key = self.result_keys[0] + starting_truncation = 0 + self._inject_starting_params(current_kwargs) + while True: + response = self._make_request(current_kwargs) + parsed = self._extract_parsed_response(response) + if first_request: + # The first request is handled differently. We could + # possibly have a resume/starting token that tells us where + # to index into the retrieved page. + if self._starting_token is not None: + starting_truncation = self._handle_first_request( + parsed, primary_result_key, starting_truncation + ) + first_request = False + self._record_non_aggregate_key_values(parsed) + else: + # If this isn't the first request, we have already sliced into + # the first request and had to make additional requests after. + # We no longer need to add this to truncation. + starting_truncation = 0 + current_response = primary_result_key.search(parsed) + if current_response is None: + current_response = [] + num_current_response = len(current_response) + truncate_amount = 0 + if self._max_items is not None: + truncate_amount = ( + total_items + num_current_response - self._max_items + ) + if truncate_amount > 0: + self._truncate_response( + parsed, + primary_result_key, + truncate_amount, + starting_truncation, + next_token, + ) + yield response + break + else: + yield response + total_items += num_current_response + next_token = self._get_next_token(parsed) + if all(t is None for t in next_token.values()): + break + if ( + self._max_items is not None + and total_items == self._max_items + ): + # We're on a page boundary so we can set the current + # next token to be the resume token. + self.resume_token = next_token + break + if ( + previous_next_token is not None + and previous_next_token == next_token + ): + message = ( + f"The same next token was received twice: {next_token}" + ) + raise PaginationError(message=message) + self._inject_token_into_kwargs(current_kwargs, next_token) + previous_next_token = next_token + + def search(self, expression): + """Applies a JMESPath expression to a paginator + + Each page of results is searched using the provided JMESPath + expression. If the result is not a list, it is yielded + directly. If the result is a list, each element in the result + is yielded individually (essentially implementing a flatmap in + which the JMESPath search is the mapping function). + + :type expression: str + :param expression: JMESPath expression to apply to each page. + + :return: Returns an iterator that yields the individual + elements of applying a JMESPath expression to each page of + results. + """ + compiled = jmespath.compile(expression) + for page in self: + results = compiled.search(page) + if isinstance(results, list): + yield from results + else: + # Yield result directly if it is not a list. + yield results + + @with_current_context(partial(register_feature_id, 'PAGINATOR')) + def _make_request(self, current_kwargs): + return self._method(**current_kwargs) + + def _extract_parsed_response(self, response): + return response + + def _record_non_aggregate_key_values(self, response): + non_aggregate_keys = {} + for expression in self._non_aggregate_key_exprs: + result = expression.search(response) + set_value_from_jmespath( + non_aggregate_keys, expression.expression, result + ) + self._non_aggregate_part = non_aggregate_keys + + def _inject_starting_params(self, op_kwargs): + # If the user has specified a starting token we need to + # inject that into the operation's kwargs. + if self._starting_token is not None: + # Don't need to do anything special if there is no starting + # token specified. + next_token = self._parse_starting_token()[0] + self._inject_token_into_kwargs(op_kwargs, next_token) + if self._page_size is not None: + # Pass the page size as the parameter name for limiting + # page size, also known as the limit_key. + op_kwargs[self._limit_key] = self._page_size + + def _inject_token_into_kwargs(self, op_kwargs, next_token): + for name, token in next_token.items(): + if (token is not None) and (token != 'None'): + op_kwargs[name] = token + elif name in op_kwargs: + del op_kwargs[name] + + def _handle_first_request( + self, parsed, primary_result_key, starting_truncation + ): + # If the payload is an array or string, we need to slice into it + # and only return the truncated amount. + starting_truncation = self._parse_starting_token()[1] + all_data = primary_result_key.search(parsed) + if isinstance(all_data, (list, str)): + data = all_data[starting_truncation:] + else: + data = None + set_value_from_jmespath(parsed, primary_result_key.expression, data) + # We also need to truncate any secondary result keys + # because they were not truncated in the previous last + # response. + for token in self.result_keys: + if token == primary_result_key: + continue + sample = token.search(parsed) + if isinstance(sample, list): + empty_value = [] + elif isinstance(sample, str): + empty_value = '' + elif isinstance(sample, (int, float)): + # Even though we may be resuming from a truncated page, we + # still start from the actual numeric secondary result. For + # DynamoDB's Count/ScannedCount, this will still show how many + # items the server evaluated, even if the client is truncating + # due to a StartingToken. + empty_value = sample + else: + empty_value = None + set_value_from_jmespath(parsed, token.expression, empty_value) + return starting_truncation + + def _truncate_response( + self, + parsed, + primary_result_key, + truncate_amount, + starting_truncation, + next_token, + ): + original = primary_result_key.search(parsed) + if original is None: + original = [] + amount_to_keep = len(original) - truncate_amount + truncated = original[:amount_to_keep] + set_value_from_jmespath( + parsed, primary_result_key.expression, truncated + ) + # The issue here is that even though we know how much we've truncated + # we need to account for this globally including any starting + # left truncation. For example: + # Raw response: [0,1,2,3] + # Starting index: 1 + # Max items: 1 + # Starting left truncation: [1, 2, 3] + # End right truncation for max items: [1] + # However, even though we only kept 1, this is post + # left truncation so the next starting index should be 2, not 1 + # (left_truncation + amount_to_keep). + next_token['boto_truncate_amount'] = ( + amount_to_keep + starting_truncation + ) + self.resume_token = next_token + + def _get_next_token(self, parsed): + if self._more_results is not None: + if not self._more_results.search(parsed): + return {} + next_tokens = {} + for output_token, input_key in zip( + self._output_token, self._input_token + ): + next_token = output_token.search(parsed) + # We do not want to include any empty strings as actual tokens. + # Treat them as None. + if next_token: + next_tokens[input_key] = next_token + else: + next_tokens[input_key] = None + return next_tokens + + def result_key_iters(self): + teed_results = tee(self, len(self.result_keys)) + return [ + ResultKeyIterator(i, result_key) + for i, result_key in zip(teed_results, self.result_keys) + ] + + def build_full_result(self): + complete_result = {} + for response in self: + page = response + # We want to try to catch operation object pagination + # and format correctly for those. They come in the form + # of a tuple of two elements: (http_response, parsed_responsed). + # We want the parsed_response as that is what the page iterator + # uses. We can remove it though once operation objects are removed. + if isinstance(response, tuple) and len(response) == 2: + page = response[1] + # We're incrementally building the full response page + # by page. For each page in the response we need to + # inject the necessary components from the page + # into the complete_result. + for result_expression in self.result_keys: + # In order to incrementally update a result key + # we need to search the existing value from complete_result, + # then we need to search the _current_ page for the + # current result key value. Then we append the current + # value onto the existing value, and re-set that value + # as the new value. + result_value = result_expression.search(page) + if result_value is None: + continue + existing_value = result_expression.search(complete_result) + if existing_value is None: + # Set the initial result + set_value_from_jmespath( + complete_result, + result_expression.expression, + result_value, + ) + continue + # Now both result_value and existing_value contain something + if isinstance(result_value, list): + existing_value.extend(result_value) + elif isinstance(result_value, (int, float, str)): + # Modify the existing result with the sum or concatenation + set_value_from_jmespath( + complete_result, + result_expression.expression, + existing_value + result_value, + ) + merge_dicts(complete_result, self.non_aggregate_part) + if self.resume_token is not None: + complete_result['NextToken'] = self.resume_token + return complete_result + + def _parse_starting_token(self): + if self._starting_token is None: + return None + + # The starting token is a dict passed as a base64 encoded string. + next_token = self._starting_token + try: + next_token = self._token_decoder.decode(next_token) + index = 0 + if 'boto_truncate_amount' in next_token: + index = next_token.get('boto_truncate_amount') + del next_token['boto_truncate_amount'] + except (ValueError, TypeError): + next_token, index = self._parse_starting_token_deprecated() + return next_token, index + + def _parse_starting_token_deprecated(self): + """ + This handles parsing of old style starting tokens, and attempts to + coerce them into the new style. + """ + log.debug( + "Attempting to fall back to old starting token parser. For token: %s", + self._starting_token, + ) + if self._starting_token is None: + return None + + parts = self._starting_token.split('___') + next_token = [] + index = 0 + if len(parts) == len(self._input_token) + 1: + try: + index = int(parts.pop()) + except ValueError: + # This doesn't look like a valid old-style token, so we're + # passing it along as an opaque service token. + parts = [self._starting_token] + + for part in parts: + if part == 'None': + next_token.append(None) + else: + next_token.append(part) + return self._convert_deprecated_starting_token(next_token), index + + def _convert_deprecated_starting_token(self, deprecated_token): + """ + This attempts to convert a deprecated starting token into the new + style. + """ + len_deprecated_token = len(deprecated_token) + len_input_token = len(self._input_token) + if len_deprecated_token > len_input_token: + raise ValueError(f"Bad starting token: {self._starting_token}") + elif len_deprecated_token < len_input_token: + log.debug( + "Old format starting token does not contain all input " + "tokens. Setting the rest, in order, as None." + ) + for i in range(len_input_token - len_deprecated_token): + deprecated_token.append(None) + return dict(zip(self._input_token, deprecated_token)) + + +class Paginator: + PAGE_ITERATOR_CLS = PageIterator + + def __init__(self, method, pagination_config, model): + self._model = model + self._method = method + self._pagination_cfg = pagination_config + self._output_token = self._get_output_tokens(self._pagination_cfg) + self._input_token = self._get_input_tokens(self._pagination_cfg) + self._more_results = self._get_more_results_token(self._pagination_cfg) + self._non_aggregate_keys = self._get_non_aggregate_keys( + self._pagination_cfg + ) + self._result_keys = self._get_result_keys(self._pagination_cfg) + self._limit_key = self._get_limit_key(self._pagination_cfg) + + @property + def result_keys(self): + return self._result_keys + + def _get_non_aggregate_keys(self, config): + keys = [] + for key in config.get('non_aggregate_keys', []): + keys.append(jmespath.compile(key)) + return keys + + def _get_output_tokens(self, config): + output = [] + output_token = config['output_token'] + if not isinstance(output_token, list): + output_token = [output_token] + for config in output_token: + output.append(jmespath.compile(config)) + return output + + def _get_input_tokens(self, config): + input_token = self._pagination_cfg['input_token'] + if not isinstance(input_token, list): + input_token = [input_token] + return input_token + + def _get_more_results_token(self, config): + more_results = config.get('more_results') + if more_results is not None: + return jmespath.compile(more_results) + + def _get_result_keys(self, config): + result_key = config.get('result_key') + if result_key is not None: + if not isinstance(result_key, list): + result_key = [result_key] + result_key = [jmespath.compile(rk) for rk in result_key] + return result_key + + def _get_limit_key(self, config): + return config.get('limit_key') + + def paginate(self, **kwargs): + """Create paginator object for an operation. + + This returns an iterable object. Iterating over + this object will yield a single page of a response + at a time. + + """ + page_params = self._extract_paging_params(kwargs) + return self.PAGE_ITERATOR_CLS( + self._method, + self._input_token, + self._output_token, + self._more_results, + self._result_keys, + self._non_aggregate_keys, + self._limit_key, + page_params['MaxItems'], + page_params['StartingToken'], + page_params['PageSize'], + kwargs, + ) + + def _extract_paging_params(self, kwargs): + pagination_config = kwargs.pop('PaginationConfig', {}) + max_items = pagination_config.get('MaxItems', None) + if max_items is not None: + max_items = int(max_items) + page_size = pagination_config.get('PageSize', None) + if page_size is not None: + if self._limit_key is None: + raise PaginationError( + message="PageSize parameter is not supported for the " + "pagination interface for this operation." + ) + input_members = self._model.input_shape.members + limit_key_shape = input_members.get(self._limit_key) + if limit_key_shape.type_name == 'string': + if not isinstance(page_size, str): + page_size = str(page_size) + else: + page_size = int(page_size) + return { + 'MaxItems': max_items, + 'StartingToken': pagination_config.get('StartingToken', None), + 'PageSize': page_size, + } + + +class ResultKeyIterator: + """Iterates over the results of paginated responses. + + Each iterator is associated with a single result key. + Iterating over this object will give you each element in + the result key list. + + :param pages_iterator: An iterator that will give you + pages of results (a ``PageIterator`` class). + :param result_key: The JMESPath expression representing + the result key. + + """ + + def __init__(self, pages_iterator, result_key): + self._pages_iterator = pages_iterator + self.result_key = result_key + + def __iter__(self): + for page in self._pages_iterator: + results = self.result_key.search(page) + if results is None: + results = [] + yield from results diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/parsers.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/parsers.py new file mode 100644 index 0000000000000000000000000000000000000000..9f1e6049d1ff4d81e9c11f0014de6c044ba11a80 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/parsers.py @@ -0,0 +1,1484 @@ +# Copyright 2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +"""Response parsers for the various protocol types. + +The module contains classes that can take an HTTP response, and given +an output shape, parse the response into a dict according to the +rules in the output shape. + +There are many similarities amongst the different protocols with regard +to response parsing, and the code is structured in a way to avoid +code duplication when possible. The diagram below is a diagram +showing the inheritance hierarchy of the response classes. + +:: + + + +-------------------+ + | ResponseParser | + +-------------------+ + ^ ^ ^ ^ ^ + | | | | | + | | | | +--------------------------------------------+ + | | | +-----------------------------+ | + | | | | | + +--------------------+ | +----------------+ | | + | | | | | ++----------+----------+ +------+-------+ +-------+------+ +------+-------+ +------+--------+ +|BaseXMLResponseParser| |BaseRestParser| |BaseJSONParser| |BaseCBORParser| |BaseRpcV2Parser| ++---------------------+ +--------------+ +--------------+ +----------+---+ +-+-------------+ + ^ ^ ^ ^ ^ ^ ^ ^ + | | | | | | | | + | | | | | | | | + | ++----------+-+ +-+--------+---+ | +---+---------+-+ + | |RestXMLParser| |RestJSONParser| | |RpcV2CBORParser| + +-----+-----+ +-------------+ +--------------+ | +---+---------+-+ + |QueryParser| | + +-----------+ +----+-----+ + |JSONParser| + +----------+ + +The diagram above shows that there is a base class, ``ResponseParser`` that +contains logic that is similar amongst all the different protocols (``query``, +``json``, ``rest-json``, ``rest-xml``, ``smithy-rpc-v2-cbor``). Amongst the various services +there is shared logic that can be grouped several ways: + +* The ``query`` and ``rest-xml`` both have XML bodies that are parsed in the + same way. +* The ``json`` and ``rest-json`` protocols both have JSON bodies that are + parsed in the same way. +* The ``rest-json`` and ``rest-xml`` protocols have additional attributes + besides body parameters that are parsed the same (headers, query string, + status code). + +This is reflected in the class diagram above. The ``BaseXMLResponseParser`` +and the BaseJSONParser contain logic for parsing the XML/JSON body, +and the BaseRestParser contains logic for parsing out attributes that +come from other parts of the HTTP response. Classes like the +``RestXMLParser`` inherit from the ``BaseXMLResponseParser`` to get the +XML body parsing logic and the ``BaseRestParser`` to get the HTTP +header/status code/query string parsing. + +Additionally, there are event stream parsers that are used by the other parsers +to wrap streaming bodies that represent a stream of events. The +BaseEventStreamParser extends from ResponseParser and defines the logic for +parsing values from the headers and payload of a message from the underlying +binary encoding protocol. Currently, event streams support parsing bodies +encoded as JSON and XML through the following hierarchy. + + + +--------------+ + |ResponseParser| + +--------------+ + ^ ^ ^ + +--------------------+ | +------------------+ + | | | + +----------+----------+ +----------+----------+ +-------+------+ + |BaseXMLResponseParser| |BaseEventStreamParser| |BaseJSONParser| + +---------------------+ +---------------------+ +--------------+ + ^ ^ ^ ^ + | | | | + | | | | + +-+----------------+-+ +-+-----------------+-+ + |EventStreamXMLParser| |EventStreamJSONParser| + +--------------------+ +---------------------+ + +Return Values +============= + +Each call to ``parse()`` returns a dict has this form:: + + Standard Response + + { + "ResponseMetadata": {"RequestId": } + + } + + Error response + + { + "ResponseMetadata": {"RequestId": } + "Error": { + "Code": , + "Message": , + "Type": , + + } + } + +""" + +import base64 +import http.client +import io +import json +import logging +import os +import re +import struct + +from botocore.compat import ETree, XMLParseError +from botocore.eventstream import EventStream, NoInitialResponseError +from botocore.utils import ( + CachedProperty, + ensure_boolean, + is_json_value_header, + lowercase_dict, + merge_dicts, + parse_timestamp, +) + +LOG = logging.getLogger(__name__) + +DEFAULT_TIMESTAMP_PARSER = parse_timestamp + + +class ResponseParserFactory: + def __init__(self): + self._defaults = {} + + def set_parser_defaults(self, **kwargs): + """Set default arguments when a parser instance is created. + + You can specify any kwargs that are allowed by a ResponseParser + class. There are currently two arguments: + + * timestamp_parser - A callable that can parse a timestamp string + * blob_parser - A callable that can parse a blob type + + """ + self._defaults.update(kwargs) + + def create_parser(self, protocol_name): + parser_cls = PROTOCOL_PARSERS[protocol_name] + return parser_cls(**self._defaults) + + +def create_parser(protocol): + return ResponseParserFactory().create_parser(protocol) + + +def _text_content(func): + # This decorator hides the difference between + # an XML node with text or a plain string. It's used + # to ensure that scalar processing operates only on text + # strings, which allows the same scalar handlers to be used + # for XML nodes from the body and HTTP headers. + def _get_text_content(self, shape, node_or_string): + if hasattr(node_or_string, 'text'): + text = node_or_string.text + if text is None: + # If an XML node is empty , + # we want to parse that as an empty string, + # not as a null/None value. + text = '' + else: + text = node_or_string + return func(self, shape, text) + + return _get_text_content + + +class ResponseParserError(Exception): + pass + + +class ResponseParser: + """Base class for response parsing. + + This class represents the interface that all ResponseParsers for the + various protocols must implement. + + This class will take an HTTP response and a model shape and parse the + HTTP response into a dictionary. + + There is a single public method exposed: ``parse``. See the ``parse`` + docstring for more info. + + """ + + DEFAULT_ENCODING = 'utf-8' + EVENT_STREAM_PARSER_CLS = None + # This is a list of known values for the 'location' key in the + # serialization dict. The location key tells us where in the response + # to parse the value. Members with locations that aren't in this list + # will be parsed from the body. + KNOWN_LOCATIONS = ('header', 'headers', 'statusCode') + + def __init__(self, timestamp_parser=None, blob_parser=None): + if timestamp_parser is None: + timestamp_parser = DEFAULT_TIMESTAMP_PARSER + self._timestamp_parser = timestamp_parser + if blob_parser is None: + blob_parser = self._default_blob_parser + self._blob_parser = blob_parser + self._event_stream_parser = None + if self.EVENT_STREAM_PARSER_CLS is not None: + self._event_stream_parser = self.EVENT_STREAM_PARSER_CLS( + timestamp_parser, blob_parser + ) + + def _default_blob_parser(self, value): + # Blobs are always returned as bytes type (this matters on python3). + # We don't decode this to a str because it's entirely possible that the + # blob contains binary data that actually can't be decoded. + return base64.b64decode(value) + + def parse(self, response, shape): + """Parse the HTTP response given a shape. + + :param response: The HTTP response dictionary. This is a dictionary + that represents the HTTP request. The dictionary must have the + following keys, ``body``, ``headers``, and ``status_code``. + + :param shape: The model shape describing the expected output. + :return: Returns a dictionary representing the parsed response + described by the model. In addition to the shape described from + the model, each response will also have a ``ResponseMetadata`` + which contains metadata about the response, which contains at least + two keys containing ``RequestId`` and ``HTTPStatusCode``. Some + responses may populate additional keys, but ``RequestId`` will + always be present. + + """ + LOG.debug('Response headers: %r', response['headers']) + LOG.debug('Response body:\n%r', response['body']) + if response['status_code'] >= 301: + if self._is_generic_error_response(response): + parsed = self._do_generic_error_parse(response) + elif self._is_modeled_error_shape(shape): + parsed = self._do_modeled_error_parse(response, shape) + # We don't want to decorate the modeled fields with metadata + return parsed + else: + parsed = self._do_error_parse(response, shape) + else: + parsed = self._do_parse(response, shape) + + # We don't want to decorate event stream responses with metadata + if shape and shape.serialization.get('eventstream'): + return parsed + + # Add ResponseMetadata if it doesn't exist and inject the HTTP + # status code and headers from the response. + if isinstance(parsed, dict): + response_metadata = parsed.get('ResponseMetadata', {}) + response_metadata['HTTPStatusCode'] = response['status_code'] + # Ensure that the http header keys are all lower cased. Older + # versions of urllib3 (< 1.11) would unintentionally do this for us + # (see urllib3#633). We need to do this conversion manually now. + headers = response['headers'] + response_metadata['HTTPHeaders'] = lowercase_dict(headers) + parsed['ResponseMetadata'] = response_metadata + self._add_checksum_response_metadata(response, response_metadata) + return parsed + + def _add_checksum_response_metadata(self, response, response_metadata): + checksum_context = response.get('context', {}).get('checksum', {}) + algorithm = checksum_context.get('response_algorithm') + if algorithm: + response_metadata['ChecksumAlgorithm'] = algorithm + + def _is_modeled_error_shape(self, shape): + return shape is not None and shape.metadata.get('exception', False) + + def _is_generic_error_response(self, response): + # There are times when a service will respond with a generic + # error response such as: + # 'Http/1.1 Service Unavailable' + # + # This can also happen if you're going through a proxy. + # In this case the protocol specific _do_error_parse will either + # fail to parse the response (in the best case) or silently succeed + # and treat the HTML above as an XML response and return + # non sensical parsed data. + # To prevent this case from happening we first need to check + # whether or not this response looks like the generic response. + if response['status_code'] >= 500: + if 'body' not in response or response['body'] is None: + return True + + body = response['body'].strip() + return body.startswith(b'') or not body + + def _do_generic_error_parse(self, response): + # There's not really much we can do when we get a generic + # html response. + LOG.debug( + "Received a non protocol specific error response from the " + "service, unable to populate error code and message." + ) + return { + 'Error': { + 'Code': str(response['status_code']), + 'Message': http.client.responses.get( + response['status_code'], '' + ), + }, + 'ResponseMetadata': {}, + } + + def _do_parse(self, response, shape): + raise NotImplementedError(f"{self.__class__.__name__}._do_parse") + + def _do_error_parse(self, response, shape): + raise NotImplementedError(f"{self.__class__.__name__}._do_error_parse") + + def _do_modeled_error_parse(self, response, shape, parsed): + raise NotImplementedError( + f"{self.__class__.__name__}._do_modeled_error_parse" + ) + + def _parse_shape(self, shape, node): + handler = getattr( + self, f'_handle_{shape.type_name}', self._default_handle + ) + return handler(shape, node) + + def _handle_list(self, shape, node): + # Enough implementations share list serialization that it's moved + # up here in the base class. + parsed = [] + member_shape = shape.member + for item in node: + parsed.append(self._parse_shape(member_shape, item)) + return parsed + + def _default_handle(self, shape, value): + return value + + def _create_event_stream(self, response, shape): + parser = self._event_stream_parser + name = response['context'].get('operation_name') + return EventStream(response['body'], shape, parser, name) + + def _get_first_key(self, value): + return list(value)[0] + + def _has_unknown_tagged_union_member(self, shape, value): + if shape.is_tagged_union: + cleaned_value = value.copy() + cleaned_value.pop("__type", None) + cleaned_value = { + k: v for k, v in cleaned_value.items() if v is not None + } + if len(cleaned_value) != 1: + error_msg = ( + "Invalid service response: %s must have one and only " + "one member set." + ) + raise ResponseParserError(error_msg % shape.name) + tag = self._get_first_key(cleaned_value) + serialized_member_names = [ + shape.members[member].serialization.get('name', member) + for member in shape.members + ] + if tag not in serialized_member_names: + LOG.info( + "Received a tagged union response with member unknown to client: %s. " + "Please upgrade SDK for full response support.", + tag, + ) + return True + return False + + def _handle_unknown_tagged_union_member(self, tag): + return {'SDK_UNKNOWN_MEMBER': {'name': tag}} + + def _do_query_compatible_error_parse(self, code, headers, error): + """ + Error response may contain an x-amzn-query-error header to translate + errors codes from former `query` services into other protocols. We use this + to do our lookup in the errorfactory for modeled errors. + """ + query_error = headers['x-amzn-query-error'] + query_error_components = query_error.split(';') + + if len(query_error_components) == 2 and query_error_components[0]: + error['Error']['QueryErrorCode'] = code + error['Error']['Type'] = query_error_components[1] + return query_error_components[0] + return code + + +class BaseXMLResponseParser(ResponseParser): + def __init__(self, timestamp_parser=None, blob_parser=None): + super().__init__(timestamp_parser, blob_parser) + self._namespace_re = re.compile('{.*}') + + def _handle_map(self, shape, node): + parsed = {} + key_shape = shape.key + value_shape = shape.value + key_location_name = key_shape.serialization.get('name') or 'key' + value_location_name = value_shape.serialization.get('name') or 'value' + if shape.serialization.get('flattened') and not isinstance(node, list): + node = [node] + for keyval_node in node: + for single_pair in keyval_node: + # Within each there's a and a + tag_name = self._node_tag(single_pair) + if tag_name == key_location_name: + key_name = self._parse_shape(key_shape, single_pair) + elif tag_name == value_location_name: + val_name = self._parse_shape(value_shape, single_pair) + else: + raise ResponseParserError(f"Unknown tag: {tag_name}") + parsed[key_name] = val_name + return parsed + + def _node_tag(self, node): + return self._namespace_re.sub('', node.tag) + + def _handle_list(self, shape, node): + # When we use _build_name_to_xml_node, repeated elements are aggregated + # into a list. However, we can't tell the difference between a scalar + # value and a single element flattened list. So before calling the + # real _handle_list, we know that "node" should actually be a list if + # it's flattened, and if it's not, then we make it a one element list. + if shape.serialization.get('flattened') and not isinstance(node, list): + node = [node] + return super()._handle_list(shape, node) + + def _handle_structure(self, shape, node): + parsed = {} + members = shape.members + if shape.metadata.get('exception', False): + node = self._get_error_root(node) + xml_dict = self._build_name_to_xml_node(node) + if self._has_unknown_tagged_union_member(shape, xml_dict): + tag = self._get_first_key(xml_dict) + return self._handle_unknown_tagged_union_member(tag) + for member_name in members: + member_shape = members[member_name] + location = member_shape.serialization.get('location') + if ( + location in self.KNOWN_LOCATIONS + or member_shape.serialization.get('eventheader') + ): + # All members with known locations have already been handled, + # so we don't need to parse these members. + continue + xml_name = self._member_key_name(member_shape, member_name) + member_node = xml_dict.get(xml_name) + if member_node is not None: + parsed[member_name] = self._parse_shape( + member_shape, member_node + ) + elif member_shape.serialization.get('xmlAttribute'): + attribs = {} + location_name = member_shape.serialization['name'] + for key, value in node.attrib.items(): + new_key = self._namespace_re.sub( + location_name.split(':')[0] + ':', key + ) + attribs[new_key] = value + if location_name in attribs: + parsed[member_name] = attribs[location_name] + return parsed + + def _get_error_root(self, original_root): + if self._node_tag(original_root) == 'ErrorResponse': + for child in original_root: + if self._node_tag(child) == 'Error': + return child + return original_root + + def _member_key_name(self, shape, member_name): + # This method is needed because we have to special case flattened list + # with a serialization name. If this is the case we use the + # locationName from the list's member shape as the key name for the + # surrounding structure. + if shape.type_name == 'list' and shape.serialization.get('flattened'): + list_member_serialized_name = shape.member.serialization.get( + 'name' + ) + if list_member_serialized_name is not None: + return list_member_serialized_name + serialized_name = shape.serialization.get('name') + if serialized_name is not None: + return serialized_name + return member_name + + def _build_name_to_xml_node(self, parent_node): + # If the parent node is actually a list. We should not be trying + # to serialize it to a dictionary. Instead, return the first element + # in the list. + if isinstance(parent_node, list): + return self._build_name_to_xml_node(parent_node[0]) + xml_dict = {} + for item in parent_node: + key = self._node_tag(item) + if key in xml_dict: + # If the key already exists, the most natural + # way to handle this is to aggregate repeated + # keys into a single list. + # 12 -> {'foo': [Node(1), Node(2)]} + if isinstance(xml_dict[key], list): + xml_dict[key].append(item) + else: + # Convert from a scalar to a list. + xml_dict[key] = [xml_dict[key], item] + else: + xml_dict[key] = item + return xml_dict + + def _parse_xml_string_to_dom(self, xml_string): + try: + parser = ETree.XMLParser( + target=ETree.TreeBuilder(), encoding=self.DEFAULT_ENCODING + ) + parser.feed(xml_string) + root = parser.close() + except XMLParseError as e: + raise ResponseParserError( + f"Unable to parse response ({e}), " + f"invalid XML received. Further retries may succeed:\n{xml_string}" + ) + return root + + def _replace_nodes(self, parsed): + for key, value in parsed.items(): + if list(value): + sub_dict = self._build_name_to_xml_node(value) + parsed[key] = self._replace_nodes(sub_dict) + else: + parsed[key] = value.text + return parsed + + @_text_content + def _handle_boolean(self, shape, text): + if text == 'true': + return True + else: + return False + + @_text_content + def _handle_float(self, shape, text): + return float(text) + + @_text_content + def _handle_timestamp(self, shape, text): + return self._timestamp_parser(text) + + @_text_content + def _handle_integer(self, shape, text): + return int(text) + + @_text_content + def _handle_string(self, shape, text): + return text + + @_text_content + def _handle_blob(self, shape, text): + return self._blob_parser(text) + + _handle_character = _handle_string + _handle_double = _handle_float + _handle_long = _handle_integer + + +class QueryParser(BaseXMLResponseParser): + def _do_error_parse(self, response, shape): + xml_contents = response['body'] + root = self._parse_xml_string_to_dom(xml_contents) + parsed = self._build_name_to_xml_node(root) + self._replace_nodes(parsed) + # Once we've converted xml->dict, we need to make one or two + # more adjustments to extract nested errors and to be consistent + # with ResponseMetadata for non-error responses: + # 1. {"Errors": {"Error": {...}}} -> {"Error": {...}} + # 2. {"RequestId": "id"} -> {"ResponseMetadata": {"RequestId": "id"}} + if 'Errors' in parsed: + parsed.update(parsed.pop('Errors')) + if 'RequestId' in parsed: + parsed['ResponseMetadata'] = {'RequestId': parsed.pop('RequestId')} + return parsed + + def _do_modeled_error_parse(self, response, shape): + return self._parse_body_as_xml(response, shape, inject_metadata=False) + + def _do_parse(self, response, shape): + return self._parse_body_as_xml(response, shape, inject_metadata=True) + + def _parse_body_as_xml(self, response, shape, inject_metadata=True): + xml_contents = response['body'] + root = self._parse_xml_string_to_dom(xml_contents) + parsed = {} + if shape is not None: + start = root + if 'resultWrapper' in shape.serialization: + start = self._find_result_wrapped_shape( + shape.serialization['resultWrapper'], root + ) + parsed = self._parse_shape(shape, start) + if inject_metadata: + self._inject_response_metadata(root, parsed) + return parsed + + def _find_result_wrapped_shape(self, element_name, xml_root_node): + mapping = self._build_name_to_xml_node(xml_root_node) + return mapping[element_name] + + def _inject_response_metadata(self, node, inject_into): + mapping = self._build_name_to_xml_node(node) + child_node = mapping.get('ResponseMetadata') + if child_node is not None: + sub_mapping = self._build_name_to_xml_node(child_node) + for key, value in sub_mapping.items(): + sub_mapping[key] = value.text + inject_into['ResponseMetadata'] = sub_mapping + + +class EC2QueryParser(QueryParser): + def _inject_response_metadata(self, node, inject_into): + mapping = self._build_name_to_xml_node(node) + child_node = mapping.get('requestId') + if child_node is not None: + inject_into['ResponseMetadata'] = {'RequestId': child_node.text} + + def _do_error_parse(self, response, shape): + # EC2 errors look like: + # + # + # + # InvalidInstanceID.Malformed + # Invalid id: "1343124" + # + # + # 12345 + # + # This is different from QueryParser in that it's RequestID, + # not RequestId + original = super()._do_error_parse(response, shape) + if 'RequestID' in original: + original['ResponseMetadata'] = { + 'RequestId': original.pop('RequestID') + } + return original + + def _get_error_root(self, original_root): + for child in original_root: + if self._node_tag(child) == 'Errors': + for errors_child in child: + if self._node_tag(errors_child) == 'Error': + return errors_child + return original_root + + +class BaseJSONParser(ResponseParser): + def _handle_structure(self, shape, value): + final_parsed = {} + if shape.is_document_type: + final_parsed = value + else: + member_shapes = shape.members + if value is None: + # If the comes across the wire as "null" (None in python), + # we should be returning this unchanged, instead of as an + # empty dict. + return None + final_parsed = {} + if self._has_unknown_tagged_union_member(shape, value): + tag = self._get_first_key(value) + return self._handle_unknown_tagged_union_member(tag) + for member_name in member_shapes: + member_shape = member_shapes[member_name] + json_name = member_shape.serialization.get('name', member_name) + raw_value = value.get(json_name) + if raw_value is not None: + final_parsed[member_name] = self._parse_shape( + member_shapes[member_name], raw_value + ) + return final_parsed + + def _handle_map(self, shape, value): + parsed = {} + key_shape = shape.key + value_shape = shape.value + for key, value in value.items(): + actual_key = self._parse_shape(key_shape, key) + actual_value = self._parse_shape(value_shape, value) + parsed[actual_key] = actual_value + return parsed + + def _handle_blob(self, shape, value): + return self._blob_parser(value) + + def _handle_timestamp(self, shape, value): + return self._timestamp_parser(value) + + def _do_error_parse(self, response, shape): + body = self._parse_body_as_json(response['body']) + error = {"Error": {"Message": '', "Code": ''}, "ResponseMetadata": {}} + headers = response['headers'] + # Error responses can have slightly different structures for json. + # The basic structure is: + # + # {"__type":"ConnectClientException", + # "message":"The error message."} + + # The error message can either come in the 'message' or 'Message' key + # so we need to check for both. + error['Error']['Message'] = body.get( + 'message', body.get('Message', '') + ) + # if the message did not contain an error code + # include the response status code + response_code = response.get('status_code') + + code = body.get('__type', response_code and str(response_code)) + if code is not None: + # code has a couple forms as well: + # * "com.aws.dynamodb.vAPI#ProvisionedThroughputExceededException" + # * "ResourceNotFoundException" + if ':' in code: + code = code.split(':', 1)[0] + if '#' in code: + code = code.rsplit('#', 1)[1] + if 'x-amzn-query-error' in headers: + code = self._do_query_compatible_error_parse( + code, headers, error + ) + error['Error']['Code'] = code + self._inject_response_metadata(error, response['headers']) + return error + + def _inject_response_metadata(self, parsed, headers): + if 'x-amzn-requestid' in headers: + parsed.setdefault('ResponseMetadata', {})['RequestId'] = headers[ + 'x-amzn-requestid' + ] + + def _parse_body_as_json(self, body_contents): + if not body_contents: + return {} + body = body_contents.decode(self.DEFAULT_ENCODING) + try: + original_parsed = json.loads(body) + return original_parsed + except ValueError: + # if the body cannot be parsed, include + # the literal string as the message + return {'message': body} + + +class BaseCBORParser(ResponseParser): + INDEFINITE_ITEM_ADDITIONAL_INFO = 31 + BREAK_CODE = 0xFF + + @CachedProperty + def major_type_to_parsing_method_map(self): + return { + 0: self._parse_unsigned_integer, + 1: self._parse_negative_integer, + 2: self._parse_byte_string, + 3: self._parse_text_string, + 4: self._parse_array, + 5: self._parse_map, + 6: self._parse_tag, + 7: self._parse_simple_and_float, + } + + def get_peekable_stream_from_bytes(self, bytes): + return io.BufferedReader(io.BytesIO(bytes)) + + def parse_data_item(self, stream): + # CBOR data is divided into "data items", and each data item starts + # with an initial byte that describes how the following bytes should be parsed + initial_byte = self._read_bytes_as_int(stream, 1) + # The highest order three bits of the initial byte describe the CBOR major type + major_type = initial_byte >> 5 + # The lowest order 5 bits of the initial byte tells us more information about + # how the bytes should be parsed that will be used + additional_info = initial_byte & 0b00011111 + + if major_type in self.major_type_to_parsing_method_map: + method = self.major_type_to_parsing_method_map[major_type] + return method(stream, additional_info) + else: + raise ResponseParserError( + f"Unsupported inital byte found for data item- " + f"Major type:{major_type}, Additional info: " + f"{additional_info}" + ) + + # Major type 0 - unsigned integers + def _parse_unsigned_integer(self, stream, additional_info): + additional_info_to_num_bytes = { + 24: 1, + 25: 2, + 26: 4, + 27: 8, + } + # Values under 24 don't need a full byte to be stored; their values are + # instead stored as the "additional info" in the initial byte + if additional_info < 24: + return additional_info + elif additional_info in additional_info_to_num_bytes: + num_bytes = additional_info_to_num_bytes[additional_info] + return self._read_bytes_as_int(stream, num_bytes) + else: + raise ResponseParserError( + "Invalid CBOR integer returned from the service; unparsable " + f"additional info found for major type 0 or 1: {additional_info}" + ) + + # Major type 1 - negative integers + def _parse_negative_integer(self, stream, additional_info): + return -1 - self._parse_unsigned_integer(stream, additional_info) + + # Major type 2 - byte string + def _parse_byte_string(self, stream, additional_info): + if additional_info != self.INDEFINITE_ITEM_ADDITIONAL_INFO: + length = self._parse_unsigned_integer(stream, additional_info) + return self._read_from_stream(stream, length) + else: + chunks = [] + while True: + if self._handle_break_code(stream): + break + initial_byte = self._read_bytes_as_int(stream, 1) + additional_info = initial_byte & 0b00011111 + length = self._parse_unsigned_integer(stream, additional_info) + chunks.append(self._read_from_stream(stream, length)) + return b''.join(chunks) + + # Major type 3 - text string + def _parse_text_string(self, stream, additional_info): + return self._parse_byte_string(stream, additional_info).decode('utf-8') + + # Major type 4 - lists + def _parse_array(self, stream, additional_info): + if additional_info != self.INDEFINITE_ITEM_ADDITIONAL_INFO: + length = self._parse_unsigned_integer(stream, additional_info) + return [self.parse_data_item(stream) for _ in range(length)] + else: + items = [] + while not self._handle_break_code(stream): + items.append(self.parse_data_item(stream)) + return items + + # Major type 5 - maps + def _parse_map(self, stream, additional_info): + items = {} + if additional_info != self.INDEFINITE_ITEM_ADDITIONAL_INFO: + length = self._parse_unsigned_integer(stream, additional_info) + for _ in range(length): + self._parse_key_value_pair(stream, items) + return items + + else: + while not self._handle_break_code(stream): + self._parse_key_value_pair(stream, items) + return items + + def _parse_key_value_pair(self, stream, items): + key = self.parse_data_item(stream) + value = self.parse_data_item(stream) + if value is not None: + items[key] = value + + # Major type 6 is tags. The only tag we currently support is tag 1 for unix + # timestamps + def _parse_tag(self, stream, additional_info): + tag = self._parse_unsigned_integer(stream, additional_info) + value = self.parse_data_item(stream) + if tag == 1: # Epoch-based date/time in milliseconds + return self._parse_datetime(value) + else: + raise ResponseParserError( + f"Found CBOR tag not supported by botocore: {tag}" + ) + + def _parse_datetime(self, value): + if isinstance(value, (int, float)): + return self._timestamp_parser(value) + else: + raise ResponseParserError( + f"Unable to parse datetime value: {value}" + ) + + # Major type 7 includes floats and "simple" types. Supported simple types are + # currently boolean values, CBOR's null, and CBOR's undefined type. All other + # values are either floats or invalid. + def _parse_simple_and_float(self, stream, additional_info): + # For major type 7, values 20-23 correspond to CBOR "simple" values + additional_info_simple_values = { + 20: False, # CBOR false + 21: True, # CBOR true + 22: None, # CBOR null + 23: None, # CBOR undefined + } + # First we check if the additional info corresponds to a supported simple value + if additional_info in additional_info_simple_values: + return additional_info_simple_values[additional_info] + + # If it's not a simple value, we need to parse it into the correct format and + # number fo bytes + float_formats = { + 25: ('>e', 2), + 26: ('>f', 4), + 27: ('>d', 8), + } + + if additional_info in float_formats: + float_format, num_bytes = float_formats[additional_info] + return struct.unpack( + float_format, self._read_from_stream(stream, num_bytes) + )[0] + raise ResponseParserError( + f"Invalid additional info found for major type 7: {additional_info}. " + f"This indicates an unsupported simple type or an indefinite float value" + ) + + # This helper method is intended for use when parsing indefinite length items. + # It does nothing if the next byte is not the break code. If the next byte is + # the break code, it advances past that byte and returns True so the calling + # method knows to stop parsing that data item. + def _handle_break_code(self, stream): + if int.from_bytes(stream.peek(1)[:1], 'big') == self.BREAK_CODE: + stream.seek(1, os.SEEK_CUR) + return True + + def _read_bytes_as_int(self, stream, num_bytes): + byte = self._read_from_stream(stream, num_bytes) + return int.from_bytes(byte, 'big') + + def _read_from_stream(self, stream, num_bytes): + value = stream.read(num_bytes) + if len(value) != num_bytes: + raise ResponseParserError( + "End of stream reached; this indicates a " + "malformed CBOR response from the server or an " + "issue in botocore" + ) + return value + + +class BaseEventStreamParser(ResponseParser): + def _do_parse(self, response, shape): + final_parsed = {} + if shape.serialization.get('eventstream'): + event_type = response['headers'].get(':event-type') + event_shape = shape.members.get(event_type) + if event_shape: + final_parsed[event_type] = self._do_parse( + response, event_shape + ) + else: + self._parse_non_payload_attrs( + response, shape, shape.members, final_parsed + ) + self._parse_payload(response, shape, shape.members, final_parsed) + return final_parsed + + def _do_error_parse(self, response, shape): + exception_type = response['headers'].get(':exception-type') + exception_shape = shape.members.get(exception_type) + if exception_shape is not None: + original_parsed = self._initial_body_parse(response['body']) + body = self._parse_shape(exception_shape, original_parsed) + error = { + 'Error': { + 'Code': exception_type, + 'Message': body.get('Message', body.get('message', '')), + } + } + else: + error = { + 'Error': { + 'Code': response['headers'].get(':error-code', ''), + 'Message': response['headers'].get(':error-message', ''), + } + } + return error + + def _parse_payload(self, response, shape, member_shapes, final_parsed): + if shape.serialization.get('event'): + for name in member_shapes: + member_shape = member_shapes[name] + if member_shape.serialization.get('eventpayload'): + body = response['body'] + if member_shape.type_name == 'blob': + parsed_body = body + elif member_shape.type_name == 'string': + parsed_body = body.decode(self.DEFAULT_ENCODING) + else: + raw_parse = self._initial_body_parse(body) + parsed_body = self._parse_shape( + member_shape, raw_parse + ) + final_parsed[name] = parsed_body + return + # If we didn't find an explicit payload, use the current shape + original_parsed = self._initial_body_parse(response['body']) + body_parsed = self._parse_shape(shape, original_parsed) + final_parsed.update(body_parsed) + + def _parse_non_payload_attrs( + self, response, shape, member_shapes, final_parsed + ): + headers = response['headers'] + for name in member_shapes: + member_shape = member_shapes[name] + if member_shape.serialization.get('eventheader'): + if name in headers: + value = headers[name] + if member_shape.type_name == 'timestamp': + # Event stream timestamps are an in milleseconds so we + # divide by 1000 to convert to seconds. + value = self._timestamp_parser(value / 1000.0) + final_parsed[name] = value + + def _initial_body_parse(self, body_contents): + # This method should do the initial xml/json parsing of the + # body. We still need to walk the parsed body in order + # to convert types, but this method will do the first round + # of parsing. + raise NotImplementedError("_initial_body_parse") + + +class EventStreamJSONParser(BaseEventStreamParser, BaseJSONParser): + def _initial_body_parse(self, body_contents): + return self._parse_body_as_json(body_contents) + + +class EventStreamXMLParser(BaseEventStreamParser, BaseXMLResponseParser): + def _initial_body_parse(self, xml_string): + if not xml_string: + return ETree.Element('') + return self._parse_xml_string_to_dom(xml_string) + + +class EventStreamCBORParser(BaseEventStreamParser, BaseCBORParser): + def _initial_body_parse(self, body_contents): + if body_contents == b'': + return {} + return self.parse_data_item( + self.get_peekable_stream_from_bytes(body_contents) + ) + + +class JSONParser(BaseJSONParser): + EVENT_STREAM_PARSER_CLS = EventStreamJSONParser + + """Response parser for the "json" protocol.""" + + def _do_parse(self, response, shape): + parsed = {} + if shape is not None: + event_name = shape.event_stream_name + if event_name: + parsed = self._handle_event_stream(response, shape, event_name) + else: + parsed = self._handle_json_body(response['body'], shape) + self._inject_response_metadata(parsed, response['headers']) + return parsed + + def _do_modeled_error_parse(self, response, shape): + return self._handle_json_body(response['body'], shape) + + def _handle_event_stream(self, response, shape, event_name): + event_stream_shape = shape.members[event_name] + event_stream = self._create_event_stream(response, event_stream_shape) + try: + event = event_stream.get_initial_response() + except NoInitialResponseError: + error_msg = 'First event was not of type initial-response' + raise ResponseParserError(error_msg) + parsed = self._handle_json_body(event.payload, shape) + parsed[event_name] = event_stream + return parsed + + def _handle_json_body(self, raw_body, shape): + # The json.loads() gives us the primitive JSON types, + # but we need to traverse the parsed JSON data to convert + # to richer types (blobs, timestamps, etc. + parsed_json = self._parse_body_as_json(raw_body) + return self._parse_shape(shape, parsed_json) + + +class BaseRestParser(ResponseParser): + def _do_parse(self, response, shape): + final_parsed = {} + final_parsed['ResponseMetadata'] = self._populate_response_metadata( + response + ) + self._add_modeled_parse(response, shape, final_parsed) + return final_parsed + + def _add_modeled_parse(self, response, shape, final_parsed): + if shape is None: + return final_parsed + member_shapes = shape.members + self._parse_non_payload_attrs( + response, shape, member_shapes, final_parsed + ) + self._parse_payload(response, shape, member_shapes, final_parsed) + + def _do_modeled_error_parse(self, response, shape): + final_parsed = {} + self._add_modeled_parse(response, shape, final_parsed) + return final_parsed + + def _populate_response_metadata(self, response): + metadata = {} + headers = response['headers'] + if 'x-amzn-requestid' in headers: + metadata['RequestId'] = headers['x-amzn-requestid'] + elif 'x-amz-request-id' in headers: + metadata['RequestId'] = headers['x-amz-request-id'] + # HostId is what it's called whenever this value is returned + # in an XML response body, so to be consistent, we'll always + # call is HostId. + metadata['HostId'] = headers.get('x-amz-id-2', '') + return metadata + + def _parse_payload(self, response, shape, member_shapes, final_parsed): + if 'payload' in shape.serialization: + # If a payload is specified in the output shape, then only that + # shape is used for the body payload. + payload_member_name = shape.serialization['payload'] + body_shape = member_shapes[payload_member_name] + if body_shape.serialization.get('eventstream'): + body = self._create_event_stream(response, body_shape) + final_parsed[payload_member_name] = body + elif body_shape.type_name in ['string', 'blob']: + # This is a stream + body = response['body'] + if isinstance(body, bytes): + body = body.decode(self.DEFAULT_ENCODING) + final_parsed[payload_member_name] = body + else: + original_parsed = self._initial_body_parse(response['body']) + final_parsed[payload_member_name] = self._parse_shape( + body_shape, original_parsed + ) + else: + original_parsed = self._initial_body_parse(response['body']) + body_parsed = self._parse_shape(shape, original_parsed) + final_parsed.update(body_parsed) + + def _parse_non_payload_attrs( + self, response, shape, member_shapes, final_parsed + ): + headers = response['headers'] + for name in member_shapes: + member_shape = member_shapes[name] + location = member_shape.serialization.get('location') + if location is None: + continue + elif location == 'statusCode': + final_parsed[name] = self._parse_shape( + member_shape, response['status_code'] + ) + elif location == 'headers': + final_parsed[name] = self._parse_header_map( + member_shape, headers + ) + elif location == 'header': + header_name = member_shape.serialization.get('name', name) + if header_name in headers: + final_parsed[name] = self._parse_shape( + member_shape, headers[header_name] + ) + + def _parse_header_map(self, shape, headers): + # Note that headers are case insensitive, so we .lower() + # all header names and header prefixes. + parsed = {} + prefix = shape.serialization.get('name', '').lower() + for header_name in headers: + if header_name.lower().startswith(prefix): + # The key name inserted into the parsed hash + # strips off the prefix. + name = header_name[len(prefix) :] + parsed[name] = headers[header_name] + return parsed + + def _initial_body_parse(self, body_contents): + # This method should do the initial xml/json parsing of the + # body. We still need to walk the parsed body in order + # to convert types, but this method will do the first round + # of parsing. + raise NotImplementedError("_initial_body_parse") + + def _handle_string(self, shape, value): + parsed = value + if is_json_value_header(shape): + decoded = base64.b64decode(value).decode(self.DEFAULT_ENCODING) + parsed = json.loads(decoded) + return parsed + + def _handle_list(self, shape, node): + location = shape.serialization.get('location') + if location == 'header' and not isinstance(node, list): + # List in headers may be a comma separated string as per RFC7230 + node = [e.strip() for e in node.split(',')] + return super()._handle_list(shape, node) + + +class BaseRpcV2Parser(ResponseParser): + def _do_parse(self, response, shape): + parsed = {} + if shape is not None: + event_stream_name = shape.event_stream_name + if event_stream_name: + parsed = self._handle_event_stream( + response, shape, event_stream_name + ) + else: + parsed = {} + self._parse_payload(response, shape, parsed) + parsed['ResponseMetadata'] = self._populate_response_metadata( + response + ) + return parsed + + def _add_modeled_parse(self, response, shape, final_parsed): + if shape is None: + return final_parsed + self._parse_payload(response, shape, final_parsed) + + def _do_modeled_error_parse(self, response, shape): + final_parsed = {} + self._add_modeled_parse(response, shape, final_parsed) + return final_parsed + + def _populate_response_metadata(self, response): + metadata = {} + headers = response['headers'] + if 'x-amzn-requestid' in headers: + metadata['RequestId'] = headers['x-amzn-requestid'] + return metadata + + def _handle_structure(self, shape, node): + parsed = {} + members = shape.members + if shape.is_tagged_union: + cleaned_value = node.copy() + cleaned_value.pop("__type", None) + cleaned_value = { + k: v for k, v in cleaned_value.items() if v is not None + } + if len(cleaned_value) != 1: + error_msg = ( + "Invalid service response: %s must have one and only " + "one member set." + ) + raise ResponseParserError(error_msg % shape.name) + for member_name in members: + member_shape = members[member_name] + member_node = node.get(member_name) + if member_node is not None: + parsed[member_name] = self._parse_shape( + member_shape, member_node + ) + return parsed + + def _parse_payload(self, response, shape, final_parsed): + original_parsed = self._initial_body_parse(response['body']) + body_parsed = self._parse_shape(shape, original_parsed) + final_parsed.update(body_parsed) + + def _initial_body_parse(self, body_contents): + # This method should do the initial parsing of the + # body. We still need to walk the parsed body in order + # to convert types, but this method will do the first round + # of parsing. + raise NotImplementedError("_initial_body_parse") + + +class RestJSONParser(BaseRestParser, BaseJSONParser): + EVENT_STREAM_PARSER_CLS = EventStreamJSONParser + + def _initial_body_parse(self, body_contents): + return self._parse_body_as_json(body_contents) + + def _do_error_parse(self, response, shape): + error = super()._do_error_parse(response, shape) + self._inject_error_code(error, response) + return error + + def _inject_error_code(self, error, response): + # The "Code" value can come from either a response + # header or a value in the JSON body. + body = self._initial_body_parse(response['body']) + code = None + if 'x-amzn-errortype' in response['headers']: + code = response['headers']['x-amzn-errortype'] + elif 'code' in body or 'Code' in body: + code = body.get('code', body.get('Code', '')) + if code is None: + return + if isinstance(code, str): + code = code.split(':', 1)[0].rsplit('#', 1)[-1] + error['Error']['Code'] = code + + def _handle_boolean(self, shape, value): + return ensure_boolean(value) + + def _handle_integer(self, shape, value): + return int(value) + + def _handle_float(self, shape, value): + return float(value) + + _handle_long = _handle_integer + _handle_double = _handle_float + + +class RpcV2CBORParser(BaseRpcV2Parser, BaseCBORParser): + EVENT_STREAM_PARSER_CLS = EventStreamCBORParser + + def _initial_body_parse(self, body_contents): + if body_contents == b'': + return body_contents + body_contents_stream = self.get_peekable_stream_from_bytes( + body_contents + ) + return self.parse_data_item(body_contents_stream) + + def _do_error_parse(self, response, shape): + body = self._initial_body_parse(response['body']) + error = { + "Error": { + "Message": body.get('message', body.get('Message', '')), + "Code": '', + }, + "ResponseMetadata": {}, + } + headers = response['headers'] + + code = body.get('__type') + if code is None: + response_code = response.get('status_code') + if response_code is not None: + code = str(response_code) + if code is not None: + if ':' in code: + code = code.split(':', 1)[0] + if '#' in code: + code = code.rsplit('#', 1)[1] + if 'x-amzn-query-error' in headers: + code = self._do_query_compatible_error_parse( + code, headers, error + ) + error['Error']['Code'] = code + if 'x-amzn-requestid' in headers: + error.setdefault('ResponseMetadata', {})['RequestId'] = headers[ + 'x-amzn-requestid' + ] + return error + + def _handle_event_stream(self, response, shape, event_name): + event_stream_shape = shape.members[event_name] + event_stream = self._create_event_stream(response, event_stream_shape) + try: + event = event_stream.get_initial_response() + except NoInitialResponseError: + error_msg = 'First event was not of type initial-response' + raise ResponseParserError(error_msg) + parsed = self._initial_body_parse(event.payload) + parsed[event_name] = event_stream + return parsed + + +class RestXMLParser(BaseRestParser, BaseXMLResponseParser): + EVENT_STREAM_PARSER_CLS = EventStreamXMLParser + + def _initial_body_parse(self, xml_string): + if not xml_string: + return ETree.Element('') + return self._parse_xml_string_to_dom(xml_string) + + def _do_error_parse(self, response, shape): + # We're trying to be service agnostic here, but S3 does have a slightly + # different response structure for its errors compared to other + # rest-xml serivces (route53/cloudfront). We handle this by just + # trying to parse both forms. + # First: + # + # + # Sender + # InvalidInput + # Invalid resource type: foo + # + # request-id + # + if response['body']: + # If the body ends up being invalid xml, the xml parser should not + # blow up. It should at least try to pull information about the + # the error response from other sources like the HTTP status code. + try: + return self._parse_error_from_body(response) + except ResponseParserError: + LOG.debug( + 'Exception caught when parsing error response body:', + exc_info=True, + ) + return self._parse_error_from_http_status(response) + + def _parse_error_from_http_status(self, response): + return { + 'Error': { + 'Code': str(response['status_code']), + 'Message': http.client.responses.get( + response['status_code'], '' + ), + }, + 'ResponseMetadata': { + 'RequestId': response['headers'].get('x-amz-request-id', ''), + 'HostId': response['headers'].get('x-amz-id-2', ''), + }, + } + + def _parse_error_from_body(self, response): + xml_contents = response['body'] + root = self._parse_xml_string_to_dom(xml_contents) + parsed = self._build_name_to_xml_node(root) + self._replace_nodes(parsed) + if root.tag == 'Error': + # This is an S3 error response. First we'll populate the + # response metadata. + metadata = self._populate_response_metadata(response) + # The RequestId and the HostId are already in the + # ResponseMetadata, but are also duplicated in the XML + # body. We don't need these values in both places, + # we'll just remove them from the parsed XML body. + parsed.pop('RequestId', '') + parsed.pop('HostId', '') + return {'Error': parsed, 'ResponseMetadata': metadata} + elif 'RequestId' in parsed: + # Other rest-xml services: + parsed['ResponseMetadata'] = {'RequestId': parsed.pop('RequestId')} + default = {'Error': {'Message': '', 'Code': ''}} + merge_dicts(default, parsed) + return default + + @_text_content + def _handle_string(self, shape, text): + text = super()._handle_string(shape, text) + return text + + +PROTOCOL_PARSERS = { + 'ec2': EC2QueryParser, + 'query': QueryParser, + 'json': JSONParser, + 'rest-json': RestJSONParser, + 'rest-xml': RestXMLParser, + 'smithy-rpc-v2-cbor': RpcV2CBORParser, +} diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/plugin.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/plugin.py new file mode 100644 index 0000000000000000000000000000000000000000..a06a75505abac1c96f097f95bdcaaa487ff9ed02 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/plugin.py @@ -0,0 +1,85 @@ +# Copyright 2025 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +""" +NOTE: This module is considered private and is subject to abrupt breaking +changes without prior announcement. Please do not use it directly. +""" + +import importlib +import logging +import os +from contextvars import ContextVar +from dataclasses import dataclass +from typing import Optional + +log = logging.getLogger(__name__) + + +@dataclass +class PluginContext: + """ + Encapsulation of plugins tracked within the `_plugin_context` context variable. + """ + + plugins: Optional[str] = None + + +_plugin_context = ContextVar("_plugin_context") + + +def get_plugin_context(): + """Get the current `_plugin_context` context variable if set, else None.""" + return _plugin_context.get(None) + + +def set_plugin_context(ctx): + """Set the current `_plugin_context` context variable.""" + token = _plugin_context.set(ctx) + return token + + +def reset_plugin_context(token): + """Reset the current `_plugin_context` context variable.""" + _plugin_context.reset(token) + + +def get_botocore_plugins(): + context = get_plugin_context() + if context is not None: + plugins = context.plugins + if plugins is None: + context.plugins = os.environ.get('BOTOCORE_EXPERIMENTAL__PLUGINS') + else: + return plugins + return os.environ.get('BOTOCORE_EXPERIMENTAL__PLUGINS') + + +def load_client_plugins(client, plugins): + for plugin_name, module_name in plugins.items(): + log.debug( + "Importing client plugin %s from module %s", + plugin_name, + module_name, + ) + try: + module = importlib.import_module(module_name) + module.initialize_client_plugin(client) + except ModuleNotFoundError: + log.debug( + "Failed to locate the following plugin module: %s.", + plugin_name, + ) + except Exception as e: + log.debug( + "Error raised during the loading of %s: %s", plugin_name, e + ) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/regions.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/regions.py new file mode 100644 index 0000000000000000000000000000000000000000..db7ece750991d5f09e116477d7b76dc3635a0919 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/regions.py @@ -0,0 +1,869 @@ +# Copyright 2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +"""Resolves regions and endpoints. + +This module implements endpoint resolution, including resolving endpoints for a +given service and region and resolving the available endpoints for a service +in a specific AWS partition. +""" + +import copy +import logging +import re +from enum import Enum + +import jmespath + +from botocore import UNSIGNED, xform_name +from botocore.auth import AUTH_TYPE_MAPS, HAS_CRT +from botocore.crt import CRT_SUPPORTED_AUTH_TYPES +from botocore.endpoint_provider import EndpointProvider +from botocore.exceptions import ( + EndpointProviderError, + EndpointVariantError, + InvalidEndpointConfigurationError, + InvalidHostLabelError, + MissingDependencyException, + NoRegionError, + ParamValidationError, + UnknownEndpointResolutionBuiltInName, + UnknownRegionError, + UnknownSignatureVersionError, + UnsupportedS3AccesspointConfigurationError, + UnsupportedS3ConfigurationError, + UnsupportedS3ControlArnError, + UnsupportedS3ControlConfigurationError, +) +from botocore.useragent import register_feature_id +from botocore.utils import ensure_boolean, instance_cache + +LOG = logging.getLogger(__name__) +DEFAULT_URI_TEMPLATE = '{service}.{region}.{dnsSuffix}' # noqa +DEFAULT_SERVICE_DATA = {'endpoints': {}} + + +class BaseEndpointResolver: + """Resolves regions and endpoints. Must be subclassed.""" + + def construct_endpoint(self, service_name, region_name=None): + """Resolves an endpoint for a service and region combination. + + :type service_name: string + :param service_name: Name of the service to resolve an endpoint for + (e.g., s3) + + :type region_name: string + :param region_name: Region/endpoint name to resolve (e.g., us-east-1) + if no region is provided, the first found partition-wide endpoint + will be used if available. + + :rtype: dict + :return: Returns a dict containing the following keys: + - partition: (string, required) Resolved partition name + - endpointName: (string, required) Resolved endpoint name + - hostname: (string, required) Hostname to use for this endpoint + - sslCommonName: (string) sslCommonName to use for this endpoint. + - credentialScope: (dict) Signature version 4 credential scope + - region: (string) region name override when signing. + - service: (string) service name override when signing. + - signatureVersions: (list) A list of possible signature + versions, including s3, v4, v2, and s3v4 + - protocols: (list) A list of supported protocols + (e.g., http, https) + - ...: Other keys may be included as well based on the metadata + """ + raise NotImplementedError + + def get_available_partitions(self): + """Lists the partitions available to the endpoint resolver. + + :return: Returns a list of partition names (e.g., ["aws", "aws-cn"]). + """ + raise NotImplementedError + + def get_available_endpoints( + self, service_name, partition_name='aws', allow_non_regional=False + ): + """Lists the endpoint names of a particular partition. + + :type service_name: string + :param service_name: Name of a service to list endpoint for (e.g., s3) + + :type partition_name: string + :param partition_name: Name of the partition to limit endpoints to. + (e.g., aws for the public AWS endpoints, aws-cn for AWS China + endpoints, aws-us-gov for AWS GovCloud (US) Endpoints, etc. + + :type allow_non_regional: bool + :param allow_non_regional: Set to True to include endpoints that are + not regional endpoints (e.g., s3-external-1, + fips-us-gov-west-1, etc). + :return: Returns a list of endpoint names (e.g., ["us-east-1"]). + """ + raise NotImplementedError + + +class EndpointResolver(BaseEndpointResolver): + """Resolves endpoints based on partition endpoint metadata""" + + _UNSUPPORTED_DUALSTACK_PARTITIONS = ['aws-iso', 'aws-iso-b'] + + def __init__(self, endpoint_data, uses_builtin_data=False): + """ + :type endpoint_data: dict + :param endpoint_data: A dict of partition data. + + :type uses_builtin_data: boolean + :param uses_builtin_data: Whether the endpoint data originates in the + package's data directory. + """ + if 'partitions' not in endpoint_data: + raise ValueError('Missing "partitions" in endpoint data') + self._endpoint_data = endpoint_data + self.uses_builtin_data = uses_builtin_data + + def get_service_endpoints_data(self, service_name, partition_name='aws'): + for partition in self._endpoint_data['partitions']: + if partition['partition'] != partition_name: + continue + services = partition['services'] + if service_name not in services: + continue + return services[service_name]['endpoints'] + + def get_available_partitions(self): + result = [] + for partition in self._endpoint_data['partitions']: + result.append(partition['partition']) + return result + + def get_available_endpoints( + self, + service_name, + partition_name='aws', + allow_non_regional=False, + endpoint_variant_tags=None, + ): + result = [] + for partition in self._endpoint_data['partitions']: + if partition['partition'] != partition_name: + continue + services = partition['services'] + if service_name not in services: + continue + service_endpoints = services[service_name]['endpoints'] + for endpoint_name in service_endpoints: + is_regional_endpoint = endpoint_name in partition['regions'] + # Only regional endpoints can be modeled with variants + if endpoint_variant_tags and is_regional_endpoint: + variant_data = self._retrieve_variant_data( + service_endpoints[endpoint_name], endpoint_variant_tags + ) + if variant_data: + result.append(endpoint_name) + elif allow_non_regional or is_regional_endpoint: + result.append(endpoint_name) + return result + + def get_partition_dns_suffix( + self, partition_name, endpoint_variant_tags=None + ): + for partition in self._endpoint_data['partitions']: + if partition['partition'] == partition_name: + if endpoint_variant_tags: + variant = self._retrieve_variant_data( + partition.get('defaults'), endpoint_variant_tags + ) + if variant and 'dnsSuffix' in variant: + return variant['dnsSuffix'] + else: + return partition['dnsSuffix'] + return None + + def construct_endpoint( + self, + service_name, + region_name=None, + partition_name=None, + use_dualstack_endpoint=False, + use_fips_endpoint=False, + ): + if ( + service_name == 's3' + and use_dualstack_endpoint + and region_name is None + ): + region_name = 'us-east-1' + + if partition_name is not None: + valid_partition = None + for partition in self._endpoint_data['partitions']: + if partition['partition'] == partition_name: + valid_partition = partition + + if valid_partition is not None: + result = self._endpoint_for_partition( + valid_partition, + service_name, + region_name, + use_dualstack_endpoint, + use_fips_endpoint, + True, + ) + return result + return None + + # Iterate over each partition until a match is found. + for partition in self._endpoint_data['partitions']: + if use_dualstack_endpoint and ( + partition['partition'] + in self._UNSUPPORTED_DUALSTACK_PARTITIONS + ): + continue + result = self._endpoint_for_partition( + partition, + service_name, + region_name, + use_dualstack_endpoint, + use_fips_endpoint, + ) + if result: + return result + + def get_partition_for_region(self, region_name): + for partition in self._endpoint_data['partitions']: + if self._region_match(partition, region_name): + return partition['partition'] + raise UnknownRegionError( + region_name=region_name, + error_msg='No partition found for provided region_name.', + ) + + def _endpoint_for_partition( + self, + partition, + service_name, + region_name, + use_dualstack_endpoint, + use_fips_endpoint, + force_partition=False, + ): + partition_name = partition["partition"] + if ( + use_dualstack_endpoint + and partition_name in self._UNSUPPORTED_DUALSTACK_PARTITIONS + ): + error_msg = ( + "Dualstack endpoints are currently not supported" + f" for {partition_name} partition" + ) + raise EndpointVariantError(tags=['dualstack'], error_msg=error_msg) + + # Get the service from the partition, or an empty template. + service_data = partition['services'].get( + service_name, DEFAULT_SERVICE_DATA + ) + # Use the partition endpoint if no region is supplied. + if region_name is None: + if 'partitionEndpoint' in service_data: + region_name = service_data['partitionEndpoint'] + else: + raise NoRegionError() + + resolve_kwargs = { + 'partition': partition, + 'service_name': service_name, + 'service_data': service_data, + 'endpoint_name': region_name, + 'use_dualstack_endpoint': use_dualstack_endpoint, + 'use_fips_endpoint': use_fips_endpoint, + } + + # Attempt to resolve the exact region for this partition. + if region_name in service_data['endpoints']: + return self._resolve(**resolve_kwargs) + + # Check to see if the endpoint provided is valid for the partition. + if self._region_match(partition, region_name) or force_partition: + # Use the partition endpoint if set and not regionalized. + partition_endpoint = service_data.get('partitionEndpoint') + is_regionalized = service_data.get('isRegionalized', True) + if partition_endpoint and not is_regionalized: + LOG.debug( + 'Using partition endpoint for %s, %s: %s', + service_name, + region_name, + partition_endpoint, + ) + resolve_kwargs['endpoint_name'] = partition_endpoint + return self._resolve(**resolve_kwargs) + LOG.debug( + 'Creating a regex based endpoint for %s, %s', + service_name, + region_name, + ) + return self._resolve(**resolve_kwargs) + + def _region_match(self, partition, region_name): + if region_name in partition['regions']: + return True + if 'regionRegex' in partition: + return re.compile(partition['regionRegex']).match(region_name) + return False + + def _retrieve_variant_data(self, endpoint_data, tags): + variants = endpoint_data.get('variants', []) + for variant in variants: + if set(variant['tags']) == set(tags): + result = variant.copy() + return result + + def _create_tag_list(self, use_dualstack_endpoint, use_fips_endpoint): + tags = [] + if use_dualstack_endpoint: + tags.append('dualstack') + if use_fips_endpoint: + tags.append('fips') + return tags + + def _resolve_variant( + self, tags, endpoint_data, service_defaults, partition_defaults + ): + result = {} + for variants in [endpoint_data, service_defaults, partition_defaults]: + variant = self._retrieve_variant_data(variants, tags) + if variant: + self._merge_keys(variant, result) + return result + + def _resolve( + self, + partition, + service_name, + service_data, + endpoint_name, + use_dualstack_endpoint, + use_fips_endpoint, + ): + endpoint_data = service_data.get('endpoints', {}).get( + endpoint_name, {} + ) + + if endpoint_data.get('deprecated'): + LOG.warning( + 'Client is configured with the deprecated endpoint: %s', + endpoint_name, + ) + + service_defaults = service_data.get('defaults', {}) + partition_defaults = partition.get('defaults', {}) + tags = self._create_tag_list(use_dualstack_endpoint, use_fips_endpoint) + + if tags: + result = self._resolve_variant( + tags, endpoint_data, service_defaults, partition_defaults + ) + if result == {}: + error_msg = ( + f"Endpoint does not exist for {service_name} " + f"in region {endpoint_name}" + ) + raise EndpointVariantError(tags=tags, error_msg=error_msg) + self._merge_keys(endpoint_data, result) + else: + result = endpoint_data + + # If dnsSuffix has not already been consumed from a variant definition + if 'dnsSuffix' not in result: + result['dnsSuffix'] = partition['dnsSuffix'] + + result['partition'] = partition['partition'] + result['endpointName'] = endpoint_name + + # Merge in the service defaults then the partition defaults. + self._merge_keys(service_defaults, result) + self._merge_keys(partition_defaults, result) + + result['hostname'] = self._expand_template( + partition, + result['hostname'], + service_name, + endpoint_name, + result['dnsSuffix'], + ) + if 'sslCommonName' in result: + result['sslCommonName'] = self._expand_template( + partition, + result['sslCommonName'], + service_name, + endpoint_name, + result['dnsSuffix'], + ) + + return result + + def _merge_keys(self, from_data, result): + for key in from_data: + if key not in result: + result[key] = from_data[key] + + def _expand_template( + self, partition, template, service_name, endpoint_name, dnsSuffix + ): + return template.format( + service=service_name, region=endpoint_name, dnsSuffix=dnsSuffix + ) + + +class EndpointResolverBuiltins(str, Enum): + # The AWS Region configured for the SDK client (str) + AWS_REGION = "AWS::Region" + # Whether the UseFIPSEndpoint configuration option has been enabled for + # the SDK client (bool) + AWS_USE_FIPS = "AWS::UseFIPS" + # Whether the UseDualStackEndpoint configuration option has been enabled + # for the SDK client (bool) + AWS_USE_DUALSTACK = "AWS::UseDualStack" + # Whether the global endpoint should be used with STS, rather than the + # regional endpoint for us-east-1 (bool) + AWS_STS_USE_GLOBAL_ENDPOINT = "AWS::STS::UseGlobalEndpoint" + # Whether the global endpoint should be used with S3, rather than the + # regional endpoint for us-east-1 (bool) + AWS_S3_USE_GLOBAL_ENDPOINT = "AWS::S3::UseGlobalEndpoint" + # Whether S3 Transfer Acceleration has been requested (bool) + AWS_S3_ACCELERATE = "AWS::S3::Accelerate" + # Whether S3 Force Path Style has been enabled (bool) + AWS_S3_FORCE_PATH_STYLE = "AWS::S3::ForcePathStyle" + # Whether to use the ARN region or raise an error when ARN and client + # region differ (for s3 service only, bool) + AWS_S3_USE_ARN_REGION = "AWS::S3::UseArnRegion" + # Whether to use the ARN region or raise an error when ARN and client + # region differ (for s3-control service only, bool) + AWS_S3CONTROL_USE_ARN_REGION = 'AWS::S3Control::UseArnRegion' + # Whether multi-region access points (MRAP) should be disabled (bool) + AWS_S3_DISABLE_MRAP = "AWS::S3::DisableMultiRegionAccessPoints" + # Whether a custom endpoint has been configured (str) + SDK_ENDPOINT = "SDK::Endpoint" + # An AWS account ID that can be optionally configured for the SDK client (str) + ACCOUNT_ID = "AWS::Auth::AccountId" + # Whether an endpoint should include an account ID (str) + ACCOUNT_ID_ENDPOINT_MODE = "AWS::Auth::AccountIdEndpointMode" + + +class EndpointRulesetResolver: + """Resolves endpoints using a service's endpoint ruleset""" + + def __init__( + self, + endpoint_ruleset_data, + partition_data, + service_model, + builtins, + client_context, + event_emitter, + use_ssl=True, + requested_auth_scheme=None, + ): + self._provider = EndpointProvider( + ruleset_data=endpoint_ruleset_data, + partition_data=partition_data, + ) + self._param_definitions = self._provider.ruleset.parameters + self._service_model = service_model + self._builtins = builtins + self._client_context = client_context + self._event_emitter = event_emitter + self._use_ssl = use_ssl + self._requested_auth_scheme = requested_auth_scheme + self._instance_cache = {} + + def construct_endpoint( + self, + operation_model, + call_args, + request_context, + ): + """Invokes the provider with params defined in the service's ruleset""" + if call_args is None: + call_args = {} + + if request_context is None: + request_context = {} + + provider_params = self._get_provider_params( + operation_model, call_args, request_context + ) + LOG.debug( + 'Calling endpoint provider with parameters: %s', provider_params + ) + try: + provider_result = self._provider.resolve_endpoint( + **provider_params + ) + except EndpointProviderError as ex: + botocore_exception = self.ruleset_error_to_botocore_exception( + ex, provider_params + ) + if botocore_exception is None: + raise + else: + raise botocore_exception from ex + LOG.debug('Endpoint provider result: %s', provider_result.url) + + # The endpoint provider does not support non-secure transport. + if ( + not self._use_ssl + and provider_result.url.startswith('https://') + and 'Endpoint' not in provider_params + ): + provider_result = provider_result._replace( + url=f'http://{provider_result.url[8:]}' + ) + + # Multi-valued headers are not supported in botocore. Replace the list + # of values returned for each header with just its first entry, + # dropping any additionally entries. + provider_result = provider_result._replace( + headers={ + key: val[0] for key, val in provider_result.headers.items() + } + ) + + return provider_result + + def _get_provider_params( + self, operation_model, call_args, request_context + ): + """Resolve a value for each parameter defined in the service's ruleset + + The resolution order for parameter values is: + 1. Operation-specific static context values from the service definition + 2. Operation-specific dynamic context values from API parameters + 3. Client-specific context parameters + 4. Built-in values such as region, FIPS usage, ... + """ + provider_params = {} + # Builtin values can be customized for each operation by hooks + # subscribing to the ``before-endpoint-resolution.*`` event. + customized_builtins = self._get_customized_builtins( + operation_model, call_args, request_context + ) + for param_name, param_def in self._param_definitions.items(): + param_val = self._resolve_param_from_context( + param_name=param_name, + operation_model=operation_model, + call_args=call_args, + ) + if param_val is None and param_def.builtin is not None: + param_val = self._resolve_param_as_builtin( + builtin_name=param_def.builtin, + builtins=customized_builtins, + ) + if param_val is not None: + provider_params[param_name] = param_val + self._register_endpoint_feature_ids(param_name, param_val) + + return provider_params + + def _resolve_param_from_context( + self, param_name, operation_model, call_args + ): + static = self._resolve_param_as_static_context_param( + param_name, operation_model + ) + if static is not None: + return static + dynamic = self._resolve_param_as_dynamic_context_param( + param_name, operation_model, call_args + ) + if dynamic is not None: + return dynamic + operation_context_params = ( + self._resolve_param_as_operation_context_param( + param_name, operation_model, call_args + ) + ) + if operation_context_params is not None: + return operation_context_params + return self._resolve_param_as_client_context_param(param_name) + + def _resolve_param_as_static_context_param( + self, param_name, operation_model + ): + static_ctx_params = self._get_static_context_params(operation_model) + return static_ctx_params.get(param_name) + + def _resolve_param_as_dynamic_context_param( + self, param_name, operation_model, call_args + ): + dynamic_ctx_params = self._get_dynamic_context_params(operation_model) + if param_name in dynamic_ctx_params: + member_name = dynamic_ctx_params[param_name] + return call_args.get(member_name) + + def _resolve_param_as_client_context_param(self, param_name): + client_ctx_params = self._get_client_context_params() + if param_name in client_ctx_params: + client_ctx_varname = client_ctx_params[param_name] + return self._client_context.get(client_ctx_varname) + + def _resolve_param_as_operation_context_param( + self, param_name, operation_model, call_args + ): + operation_ctx_params = operation_model.operation_context_parameters + if param_name in operation_ctx_params: + path = operation_ctx_params[param_name]['path'] + return jmespath.search(path, call_args) + + def _resolve_param_as_builtin(self, builtin_name, builtins): + if builtin_name not in EndpointResolverBuiltins.__members__.values(): + raise UnknownEndpointResolutionBuiltInName(name=builtin_name) + builtin = builtins.get(builtin_name) + if callable(builtin): + return builtin() + return builtin + + @instance_cache + def _get_static_context_params(self, operation_model): + """Mapping of param names to static param value for an operation""" + return { + param.name: param.value + for param in operation_model.static_context_parameters + } + + @instance_cache + def _get_dynamic_context_params(self, operation_model): + """Mapping of param names to member names for an operation""" + return { + param.name: param.member_name + for param in operation_model.context_parameters + } + + @instance_cache + def _get_client_context_params(self): + """Mapping of param names to client configuration variable""" + return { + param.name: xform_name(param.name) + for param in self._service_model.client_context_parameters + } + + def _get_customized_builtins( + self, operation_model, call_args, request_context + ): + service_id = self._service_model.service_id.hyphenize() + customized_builtins = copy.copy(self._builtins) + # Handlers are expected to modify the builtins dict in place. + self._event_emitter.emit( + f'before-endpoint-resolution.{service_id}', + builtins=customized_builtins, + model=operation_model, + params=call_args, + context=request_context, + ) + return customized_builtins + + def auth_schemes_to_signing_ctx(self, auth_schemes): + """Convert an Endpoint's authSchemes property to a signing_context dict + + :type auth_schemes: list + :param auth_schemes: A list of dictionaries taken from the + ``authSchemes`` property of an Endpoint object returned by + ``EndpointProvider``. + + :rtype: str, dict + :return: Tuple of auth type string (to be used in + ``request_context['auth_type']``) and signing context dict (for use + in ``request_context['signing']``). + """ + if not isinstance(auth_schemes, list) or len(auth_schemes) == 0: + raise TypeError("auth_schemes must be a non-empty list.") + + LOG.debug( + 'Selecting from endpoint provider\'s list of auth schemes: %s. ' + 'User selected auth scheme is: "%s"', + ', '.join([f'"{s.get("name")}"' for s in auth_schemes]), + self._requested_auth_scheme, + ) + + if self._requested_auth_scheme == UNSIGNED: + return 'none', {} + + auth_schemes = [ + {**scheme, 'name': self._strip_sig_prefix(scheme['name'])} + for scheme in auth_schemes + ] + if self._requested_auth_scheme is not None: + try: + # Use the first scheme that matches the requested scheme, + # after accounting for naming differences between botocore and + # endpoint rulesets. Keep the requested name. + name, scheme = next( + (self._requested_auth_scheme, s) + for s in auth_schemes + if self._does_botocore_authname_match_ruleset_authname( + self._requested_auth_scheme, s['name'] + ) + ) + except StopIteration: + # For legacy signers, no match will be found. Do not raise an + # exception, instead default to the logic in botocore + # customizations. + return None, {} + else: + try: + name, scheme = next( + (s['name'], s) + for s in auth_schemes + if s['name'] in AUTH_TYPE_MAPS + ) + except StopIteration: + # If no auth scheme was specifically requested and an + # authSchemes list is present in the Endpoint object but none + # of the entries are supported, raise an exception. + fixable_with_crt = False + auth_type_options = [s['name'] for s in auth_schemes] + if not HAS_CRT: + fixable_with_crt = any( + scheme in CRT_SUPPORTED_AUTH_TYPES + for scheme in auth_type_options + ) + + if fixable_with_crt: + raise MissingDependencyException( + msg='This operation requires an additional dependency.' + ' Use pip install botocore[crt] before proceeding.' + ) + else: + raise UnknownSignatureVersionError( + signature_version=', '.join(auth_type_options) + ) + + signing_context = {} + if 'signingRegion' in scheme: + signing_context['region'] = scheme['signingRegion'] + elif 'signingRegionSet' in scheme: + if len(scheme['signingRegionSet']) > 0: + signing_context['region'] = ','.join( + scheme['signingRegionSet'] + ) + if 'signingName' in scheme: + signing_context.update(signing_name=scheme['signingName']) + if 'disableDoubleEncoding' in scheme: + signing_context['disableDoubleEncoding'] = ensure_boolean( + scheme['disableDoubleEncoding'] + ) + + LOG.debug( + 'Selected auth type "%s" as "%s" with signing context params: %s', + scheme['name'], # original name without "sig" + name, # chosen name can differ when `signature_version` is set + signing_context, + ) + return name, signing_context + + def _strip_sig_prefix(self, auth_name): + """Normalize auth type names by removing any "sig" prefix""" + return auth_name[3:] if auth_name.startswith('sig') else auth_name + + def _does_botocore_authname_match_ruleset_authname(self, botoname, rsname): + """ + Whether a valid string provided as signature_version parameter for + client construction refers to the same auth methods as a string + returned by the endpoint ruleset provider. This accounts for: + + * The ruleset prefixes auth names with "sig" + * The s3 and s3control rulesets don't distinguish between v4[a] and + s3v4[a] signers + * The v2, v3, and HMAC v1 based signers (s3, s3-*) are botocore legacy + features and do not exist in the rulesets + * Only characters up to the first dash are considered + + Example matches: + * v4, sigv4 + * v4, v4 + * s3v4, sigv4 + * s3v7, sigv7 (hypothetical example) + * s3v4a, sigv4a + * s3v4-query, sigv4 + + Example mismatches: + * v4a, sigv4 + * s3, sigv4 + * s3-presign-post, sigv4 + """ + rsname = self._strip_sig_prefix(rsname) + botoname = botoname.split('-')[0] + if botoname != 's3' and botoname.startswith('s3'): + botoname = botoname[2:] + return rsname == botoname + + def ruleset_error_to_botocore_exception(self, ruleset_exception, params): + """Attempts to translate ruleset errors to pre-existing botocore + exception types by string matching exception strings. + """ + msg = ruleset_exception.kwargs.get('msg') + if msg is None: + return + + if msg.startswith('Invalid region in ARN: '): + # Example message: + # "Invalid region in ARN: `us-we$t-2` (invalid DNS name)" + try: + label = msg.split('`')[1] + except IndexError: + label = msg + return InvalidHostLabelError(label=label) + + service_name = self._service_model.service_name + if service_name == 's3': + if ( + msg == 'S3 Object Lambda does not support S3 Accelerate' + or msg == 'Accelerate cannot be used with FIPS' + ): + return UnsupportedS3ConfigurationError(msg=msg) + if ( + msg.startswith('S3 Outposts does not support') + or msg.startswith('S3 MRAP does not support') + or msg.startswith('S3 Object Lambda does not support') + or msg.startswith('Access Points do not support') + or msg.startswith('Invalid configuration:') + or msg.startswith('Client was configured for partition') + ): + return UnsupportedS3AccesspointConfigurationError(msg=msg) + if msg.lower().startswith('invalid arn:'): + return ParamValidationError(report=msg) + if service_name == 's3control': + if msg.startswith('Invalid ARN:'): + arn = params.get('Bucket') + return UnsupportedS3ControlArnError(arn=arn, msg=msg) + if msg.startswith('Invalid configuration:') or msg.startswith( + 'Client was configured for partition' + ): + return UnsupportedS3ControlConfigurationError(msg=msg) + if msg == "AccountId is required but not set": + return ParamValidationError(report=msg) + if service_name == 'events': + if msg.startswith( + 'Invalid Configuration: FIPS is not supported with ' + 'EventBridge multi-region endpoints.' + ): + return InvalidEndpointConfigurationError(msg=msg) + if msg == 'EndpointId must be a valid host label.': + return InvalidEndpointConfigurationError(msg=msg) + return None + + def _register_endpoint_feature_ids(self, param_name, param_val): + if param_name == 'AccountIdEndpointMode': + register_feature_id(f'ACCOUNT_ID_MODE_{param_val.upper()}') + elif param_name == 'AccountId': + register_feature_id('RESOLVED_ACCOUNT_ID') diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/response.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/response.py new file mode 100644 index 0000000000000000000000000000000000000000..e123b547168c361fefd503ecac3b4d8b5475674b --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/response.py @@ -0,0 +1,216 @@ +# Copyright (c) 2012-2013 Mitch Garnaat http://garnaat.org/ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. + +import logging +from io import IOBase + +from urllib3.exceptions import ProtocolError as URLLib3ProtocolError +from urllib3.exceptions import ReadTimeoutError as URLLib3ReadTimeoutError + +from botocore import ( + ScalarTypes, # noqa: F401 + parsers, +) +from botocore.compat import ( + XMLParseError, # noqa: F401 + set_socket_timeout, +) +from botocore.exceptions import ( + IncompleteReadError, + ReadTimeoutError, + ResponseStreamingError, +) +from botocore.hooks import first_non_none_response # noqa + +logger = logging.getLogger(__name__) + + +class StreamingBody(IOBase): + """Wrapper class for an http response body. + + This provides a few additional conveniences that do not exist + in the urllib3 model: + + * Set the timeout on the socket (i.e read() timeouts) + * Auto validation of content length, if the amount of bytes + we read does not match the content length, an exception + is raised. + + """ + + _DEFAULT_CHUNK_SIZE = 1024 + + def __init__(self, raw_stream, content_length): + self._raw_stream = raw_stream + self._content_length = content_length + self._amount_read = 0 + + def __del__(self): + # Extending destructor in order to preserve the underlying raw_stream. + # The ability to add custom cleanup logic introduced in Python3.4+. + # https://www.python.org/dev/peps/pep-0442/ + pass + + def set_socket_timeout(self, timeout): + """Set the timeout seconds on the socket.""" + # The problem we're trying to solve is to prevent .read() calls from + # hanging. This can happen in rare cases. What we'd like to ideally + # do is set a timeout on the .read() call so that callers can retry + # the request. + # Unfortunately, this isn't currently possible in requests. + # See: https://github.com/kennethreitz/requests/issues/1803 + # So what we're going to do is reach into the guts of the stream and + # grab the socket object, which we can set the timeout on. We're + # putting in a check here so in case this interface goes away, we'll + # know. + try: + set_socket_timeout(self._raw_stream, timeout) + except AttributeError: + logger.exception( + "Cannot access the socket object of a streaming response. " + "It's possible the interface has changed." + ) + raise + + def readable(self): + try: + return self._raw_stream.readable() + except AttributeError: + return False + + def read(self, amt=None): + """Read at most amt bytes from the stream. + + If the amt argument is omitted, read all data. + """ + try: + chunk = self._raw_stream.read(amt) + except URLLib3ReadTimeoutError as e: + # TODO: the url will be None as urllib3 isn't setting it yet + raise ReadTimeoutError(endpoint_url=e.url, error=e) + except URLLib3ProtocolError as e: + raise ResponseStreamingError(error=e) + self._amount_read += len(chunk) + if amt is None or (not chunk and amt > 0): + # If the server sends empty contents or + # we ask to read all of the contents, then we know + # we need to verify the content length. + self._verify_content_length() + return chunk + + def readinto(self, b): + """Read bytes into a pre-allocated, writable bytes-like object b, and return the number of bytes read.""" + try: + amount_read = self._raw_stream.readinto(b) + except URLLib3ReadTimeoutError as e: + # TODO: the url will be None as urllib3 isn't setting it yet + raise ReadTimeoutError(endpoint_url=e.url, error=e) + except URLLib3ProtocolError as e: + raise ResponseStreamingError(error=e) + self._amount_read += amount_read + if amount_read == 0 and len(b) > 0: + # If the server sends empty contents then we know we need to verify + # the content length. + self._verify_content_length() + return amount_read + + def readlines(self): + return self._raw_stream.readlines() + + def __iter__(self): + """Return an iterator to yield 1k chunks from the raw stream.""" + return self.iter_chunks(self._DEFAULT_CHUNK_SIZE) + + def __next__(self): + """Return the next 1k chunk from the raw stream.""" + current_chunk = self.read(self._DEFAULT_CHUNK_SIZE) + if current_chunk: + return current_chunk + raise StopIteration() + + def __enter__(self): + return self._raw_stream + + def __exit__(self, type, value, traceback): + self._raw_stream.close() + + next = __next__ + + def iter_lines(self, chunk_size=_DEFAULT_CHUNK_SIZE, keepends=False): + """Return an iterator to yield lines from the raw stream. + + This is achieved by reading chunk of bytes (of size chunk_size) at a + time from the raw stream, and then yielding lines from there. + """ + pending = b'' + for chunk in self.iter_chunks(chunk_size): + lines = (pending + chunk).splitlines(True) + for line in lines[:-1]: + yield line.splitlines(keepends)[0] + pending = lines[-1] + if pending: + yield pending.splitlines(keepends)[0] + + def iter_chunks(self, chunk_size=_DEFAULT_CHUNK_SIZE): + """Return an iterator to yield chunks of chunk_size bytes from the raw + stream. + """ + while True: + current_chunk = self.read(chunk_size) + if current_chunk == b"": + break + yield current_chunk + + def _verify_content_length(self): + # See: https://github.com/kennethreitz/requests/issues/1855 + # Basically, our http library doesn't do this for us, so we have + # to do this ourself. + if self._content_length is not None and self._amount_read != int( + self._content_length + ): + raise IncompleteReadError( + actual_bytes=self._amount_read, + expected_bytes=int(self._content_length), + ) + + def tell(self): + return self._raw_stream.tell() + + def close(self): + """Close the underlying http response stream.""" + self._raw_stream.close() + + +def get_response(operation_model, http_response): + protocol = operation_model.service_model.resolved_protocol + response_dict = { + 'headers': http_response.headers, + 'status_code': http_response.status_code, + } + # TODO: Unfortunately, we have to have error logic here. + # If it looks like an error, in the streaming response case we + # need to actually grab the contents. + if response_dict['status_code'] >= 300: + response_dict['body'] = http_response.content + elif operation_model.has_streaming_output: + response_dict['body'] = StreamingBody( + http_response.raw, response_dict['headers'].get('content-length') + ) + else: + response_dict['body'] = http_response.content + + parser = parsers.create_parser(protocol) + return http_response, parser.parse( + response_dict, operation_model.output_shape + ) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/retryhandler.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/retryhandler.py new file mode 100644 index 0000000000000000000000000000000000000000..c2eed1d9d37607b5fa6961ec523d72aceec994aa --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/retryhandler.py @@ -0,0 +1,416 @@ +# Copyright (c) 2012-2013 Mitch Garnaat http://garnaat.org/ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. + +import functools +import logging +import random +from binascii import crc32 + +from botocore.exceptions import ( + ChecksumError, + ConnectionClosedError, + ConnectionError, + EndpointConnectionError, + ReadTimeoutError, +) + +logger = logging.getLogger(__name__) +# The only supported error for now is GENERAL_CONNECTION_ERROR +# which maps to requests generic ConnectionError. If we're able +# to get more specific exceptions from requests we can update +# this mapping with more specific exceptions. +EXCEPTION_MAP = { + 'GENERAL_CONNECTION_ERROR': [ + ConnectionError, + ConnectionClosedError, + ReadTimeoutError, + EndpointConnectionError, + ], +} + + +def delay_exponential(base, growth_factor, attempts): + """Calculate time to sleep based on exponential function. + + The format is:: + + base * growth_factor ^ (attempts - 1) + + If ``base`` is set to 'rand' then a random number between + 0 and 1 will be used as the base. + Base must be greater than 0, otherwise a ValueError will be + raised. + + """ + if base == 'rand': + base = random.random() + elif base <= 0: + raise ValueError( + f"The 'base' param must be greater than 0, got: {base}" + ) + time_to_sleep = base * (growth_factor ** (attempts - 1)) + return time_to_sleep + + +def create_exponential_delay_function(base, growth_factor): + """Create an exponential delay function based on the attempts. + + This is used so that you only have to pass it the attempts + parameter to calculate the delay. + + """ + return functools.partial( + delay_exponential, base=base, growth_factor=growth_factor + ) + + +def create_retry_handler(config, operation_name=None): + checker = create_checker_from_retry_config( + config, operation_name=operation_name + ) + action = create_retry_action_from_config( + config, operation_name=operation_name + ) + return RetryHandler(checker=checker, action=action) + + +def create_retry_action_from_config(config, operation_name=None): + # The spec has the possibility of supporting per policy + # actions, but right now, we assume this comes from the + # default section, which means that delay functions apply + # for every policy in the retry config (per service). + delay_config = config['__default__']['delay'] + if delay_config['type'] == 'exponential': + return create_exponential_delay_function( + base=delay_config['base'], + growth_factor=delay_config['growth_factor'], + ) + + +def create_checker_from_retry_config(config, operation_name=None): + checkers = [] + max_attempts = None + retryable_exceptions = [] + if '__default__' in config: + policies = config['__default__'].get('policies', []) + max_attempts = config['__default__']['max_attempts'] + for key in policies: + current_config = policies[key] + checkers.append(_create_single_checker(current_config)) + retry_exception = _extract_retryable_exception(current_config) + if retry_exception is not None: + retryable_exceptions.extend(retry_exception) + if operation_name is not None and config.get(operation_name) is not None: + operation_policies = config[operation_name]['policies'] + for key in operation_policies: + checkers.append(_create_single_checker(operation_policies[key])) + retry_exception = _extract_retryable_exception( + operation_policies[key] + ) + if retry_exception is not None: + retryable_exceptions.extend(retry_exception) + if len(checkers) == 1: + # Don't need to use a MultiChecker + return MaxAttemptsDecorator(checkers[0], max_attempts=max_attempts) + else: + multi_checker = MultiChecker(checkers) + return MaxAttemptsDecorator( + multi_checker, + max_attempts=max_attempts, + retryable_exceptions=tuple(retryable_exceptions), + ) + + +def _create_single_checker(config): + if 'response' in config['applies_when']: + return _create_single_response_checker( + config['applies_when']['response'] + ) + elif 'socket_errors' in config['applies_when']: + return ExceptionRaiser() + + +def _create_single_response_checker(response): + if 'service_error_code' in response: + checker = ServiceErrorCodeChecker( + status_code=response['http_status_code'], + error_code=response['service_error_code'], + ) + elif 'http_status_code' in response: + checker = HTTPStatusCodeChecker( + status_code=response['http_status_code'] + ) + elif 'crc32body' in response: + checker = CRC32Checker(header=response['crc32body']) + else: + # TODO: send a signal. + raise ValueError("Unknown retry policy") + return checker + + +def _extract_retryable_exception(config): + applies_when = config['applies_when'] + if 'crc32body' in applies_when.get('response', {}): + return [ChecksumError] + elif 'socket_errors' in applies_when: + exceptions = [] + for name in applies_when['socket_errors']: + exceptions.extend(EXCEPTION_MAP[name]) + return exceptions + + +class RetryHandler: + """Retry handler. + + The retry handler takes two params, ``checker`` object + and an ``action`` object. + + The ``checker`` object must be a callable object and based on a response + and an attempt number, determines whether or not sufficient criteria for + a retry has been met. If this is the case then the ``action`` object + (which also is a callable) determines what needs to happen in the event + of a retry. + + """ + + def __init__(self, checker, action): + self._checker = checker + self._action = action + + def __call__(self, attempts, response, caught_exception, **kwargs): + """Handler for a retry. + + Intended to be hooked up to an event handler (hence the **kwargs), + this will process retries appropriately. + + """ + checker_kwargs = { + 'attempt_number': attempts, + 'response': response, + 'caught_exception': caught_exception, + } + if isinstance(self._checker, MaxAttemptsDecorator): + retries_context = kwargs['request_dict']['context'].get('retries') + checker_kwargs.update({'retries_context': retries_context}) + + if self._checker(**checker_kwargs): + result = self._action(attempts=attempts) + logger.debug("Retry needed, action of: %s", result) + return result + logger.debug("No retry needed.") + + +class BaseChecker: + """Base class for retry checkers. + + Each class is responsible for checking a single criteria that determines + whether or not a retry should not happen. + + """ + + def __call__(self, attempt_number, response, caught_exception): + """Determine if retry criteria matches. + + Note that either ``response`` is not None and ``caught_exception`` is + None or ``response`` is None and ``caught_exception`` is not None. + + :type attempt_number: int + :param attempt_number: The total number of times we've attempted + to send the request. + + :param response: The HTTP response (if one was received). + + :type caught_exception: Exception + :param caught_exception: Any exception that was caught while trying to + send the HTTP response. + + :return: True, if the retry criteria matches (and therefore a retry + should occur. False if the criteria does not match. + + """ + # The default implementation allows subclasses to not have to check + # whether or not response is None or not. + if response is not None: + return self._check_response(attempt_number, response) + elif caught_exception is not None: + return self._check_caught_exception( + attempt_number, caught_exception + ) + else: + raise ValueError("Both response and caught_exception are None.") + + def _check_response(self, attempt_number, response): + pass + + def _check_caught_exception(self, attempt_number, caught_exception): + pass + + +class MaxAttemptsDecorator(BaseChecker): + """Allow retries up to a maximum number of attempts. + + This will pass through calls to the decorated retry checker, provided + that the number of attempts does not exceed max_attempts. It will + also catch any retryable_exceptions passed in. Once max_attempts has + been exceeded, then False will be returned or the retryable_exceptions + that was previously being caught will be raised. + + """ + + def __init__(self, checker, max_attempts, retryable_exceptions=None): + self._checker = checker + self._max_attempts = max_attempts + self._retryable_exceptions = retryable_exceptions + + def __call__( + self, attempt_number, response, caught_exception, retries_context + ): + if retries_context: + retries_context['max'] = max( + retries_context.get('max', 0), self._max_attempts + ) + + should_retry = self._should_retry( + attempt_number, response, caught_exception + ) + if should_retry: + if attempt_number >= self._max_attempts: + # explicitly set MaxAttemptsReached + if response is not None and 'ResponseMetadata' in response[1]: + response[1]['ResponseMetadata']['MaxAttemptsReached'] = ( + True + ) + logger.debug( + "Reached the maximum number of retry attempts: %s", + attempt_number, + ) + return False + else: + return should_retry + else: + return False + + def _should_retry(self, attempt_number, response, caught_exception): + if self._retryable_exceptions and attempt_number < self._max_attempts: + try: + return self._checker( + attempt_number, response, caught_exception + ) + except self._retryable_exceptions as e: + logger.debug( + "retry needed, retryable exception caught: %s", + e, + exc_info=True, + ) + return True + else: + # If we've exceeded the max attempts we just let the exception + # propagate if one has occurred. + return self._checker(attempt_number, response, caught_exception) + + +class HTTPStatusCodeChecker(BaseChecker): + def __init__(self, status_code): + self._status_code = status_code + + def _check_response(self, attempt_number, response): + if response[0].status_code == self._status_code: + logger.debug( + "retry needed: retryable HTTP status code received: %s", + self._status_code, + ) + return True + else: + return False + + +class ServiceErrorCodeChecker(BaseChecker): + def __init__(self, status_code, error_code): + self._status_code = status_code + self._error_code = error_code + + def _check_response(self, attempt_number, response): + if response[0].status_code == self._status_code: + actual_error_code = response[1].get('Error', {}).get('Code') + if actual_error_code == self._error_code: + logger.debug( + "retry needed: matching HTTP status and error code seen: " + "%s, %s", + self._status_code, + self._error_code, + ) + return True + return False + + +class MultiChecker(BaseChecker): + def __init__(self, checkers): + self._checkers = checkers + + def __call__(self, attempt_number, response, caught_exception): + for checker in self._checkers: + checker_response = checker( + attempt_number, response, caught_exception + ) + if checker_response: + return checker_response + return False + + +class CRC32Checker(BaseChecker): + def __init__(self, header): + # The header where the expected crc32 is located. + self._header_name = header + + def _check_response(self, attempt_number, response): + http_response = response[0] + expected_crc = http_response.headers.get(self._header_name) + if expected_crc is None: + logger.debug( + "crc32 check skipped, the %s header is not " + "in the http response.", + self._header_name, + ) + else: + actual_crc32 = crc32(response[0].content) & 0xFFFFFFFF + if not actual_crc32 == int(expected_crc): + logger.debug( + "retry needed: crc32 check failed, expected != actual: " + "%s != %s", + int(expected_crc), + actual_crc32, + ) + raise ChecksumError( + checksum_type='crc32', + expected_checksum=int(expected_crc), + actual_checksum=actual_crc32, + ) + + +class ExceptionRaiser(BaseChecker): + """Raise any caught exceptions. + + This class will raise any non None ``caught_exception``. + + """ + + def _check_caught_exception(self, attempt_number, caught_exception): + # This is implementation specific, but this class is useful by + # coordinating with the MaxAttemptsDecorator. + # The MaxAttemptsDecorator has a list of exceptions it should catch + # and retry, but something needs to come along and actually raise the + # caught_exception. That's what this class is being used for. If + # the MaxAttemptsDecorator is not interested in retrying the exception + # then this exception just propagates out past the retry code. + raise caught_exception diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/serialize.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/serialize.py new file mode 100644 index 0000000000000000000000000000000000000000..c8c303f56b59298f7978c482157edda72c455978 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/serialize.py @@ -0,0 +1,1273 @@ +# Copyright 2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +"""Protocol input serializes. + +This module contains classes that implement input serialization +for the various AWS protocol types. + +These classes essentially take user input, a model object that +represents what the expected input should look like, and it returns +a dictionary that contains the various parts of a request. A few +high level design decisions: + + +* Each protocol type maps to a separate class, all inherit from + ``Serializer``. +* The return value for ``serialize_to_request`` (the main entry + point) returns a dictionary that represents a request. This + will have keys like ``url_path``, ``query_string``, etc. This + is done so that it's a) easy to test and b) not tied to a + particular HTTP library. See the ``serialize_to_request`` docstring + for more details. + +Unicode +------- + +The input to the serializers should be text (str/unicode), not bytes, +with the exception of blob types. Those are assumed to be binary, +and if a str/unicode type is passed in, it will be encoded as utf-8. +""" + +import base64 +import calendar +import datetime +import decimal +import json +import math +import re +import struct +from xml.etree import ElementTree + +from botocore import validate +from botocore.compat import formatdate +from botocore.exceptions import ParamValidationError +from botocore.useragent import register_feature_id +from botocore.utils import ( + has_header, + is_json_value_header, + parse_to_aware_datetime, + percent_encode, +) + +# From the spec, the default timestamp format if not specified is iso8601. +DEFAULT_TIMESTAMP_FORMAT = 'iso8601' +ISO8601 = '%Y-%m-%dT%H:%M:%SZ' +# Same as ISO8601, but with microsecond precision. +ISO8601_MICRO = '%Y-%m-%dT%H:%M:%S.%fZ' +HOST_PREFIX_RE = re.compile(r"^[A-Za-z0-9\.\-]+$") + +TIMESTAMP_PRECISION_DEFAULT = 'default' +TIMESTAMP_PRECISION_MILLISECOND = 'millisecond' +TIMESTAMP_PRECISION_OPTIONS = ( + TIMESTAMP_PRECISION_DEFAULT, + TIMESTAMP_PRECISION_MILLISECOND, +) + + +def create_serializer( + protocol_name, + include_validation=True, + timestamp_precision=TIMESTAMP_PRECISION_DEFAULT, +): + """Create a serializer for the given protocol. + :param protocol_name: The protocol name to create a serializer for. + :type protocol_name: str + :param include_validation: Whether to include parameter validation. + :type include_validation: bool + :param timestamp_precision: Timestamp precision level. + - 'default': Microseconds for ISO timestamps, seconds for Unix and RFC + - 'millisecond': Millisecond precision (ISO/Unix), seconds for RFC + :type timestamp_precision: str + :return: A serializer instance for the given protocol. + """ + # TODO: Unknown protocols. + serializer = SERIALIZERS[protocol_name]( + timestamp_precision=timestamp_precision + ) + if include_validation: + validator = validate.ParamValidator() + serializer = validate.ParamValidationDecorator(validator, serializer) + return serializer + + +class Serializer: + DEFAULT_METHOD = 'POST' + # Clients can change this to a different MutableMapping + # (i.e OrderedDict) if they want. This is used in the + # compliance test to match the hash ordering used in the + # tests. + MAP_TYPE = dict + DEFAULT_ENCODING = 'utf-8' + + def __init__(self, timestamp_precision=TIMESTAMP_PRECISION_DEFAULT): + if timestamp_precision not in TIMESTAMP_PRECISION_OPTIONS: + raise ValueError( + f"Invalid timestamp precision found while creating serializer: {timestamp_precision}" + ) + self._timestamp_precision = timestamp_precision + + def serialize_to_request(self, parameters, operation_model): + """Serialize parameters into an HTTP request. + + This method takes user provided parameters and a shape + model and serializes the parameters to an HTTP request. + More specifically, this method returns information about + parts of the HTTP request, it does not enforce a particular + interface or standard for an HTTP request. It instead returns + a dictionary of: + + * 'url_path' + * 'host_prefix' + * 'query_string' + * 'headers' + * 'body' + * 'method' + + It is then up to consumers to decide how to map this to a Request + object of their HTTP library of choice. Below is an example + return value:: + + {'body': {'Action': 'OperationName', + 'Bar': 'val2', + 'Foo': 'val1', + 'Version': '2014-01-01'}, + 'headers': {}, + 'method': 'POST', + 'query_string': '', + 'host_prefix': 'value.', + 'url_path': '/'} + + :param parameters: The dictionary input parameters for the + operation (i.e the user input). + :param operation_model: The OperationModel object that describes + the operation. + """ + raise NotImplementedError("serialize_to_request") + + def _create_default_request(self): + # Creates a boilerplate default request dict that subclasses + # can use as a starting point. + serialized = { + 'url_path': '/', + 'query_string': '', + 'method': self.DEFAULT_METHOD, + 'headers': {}, + # An empty body is represented as an empty byte string. + 'body': b'', + } + return serialized + + # Some extra utility methods subclasses can use. + + def _timestamp_iso8601(self, value): + """Return ISO8601 timestamp with precision based on timestamp_precision.""" + # Smithy's standard is milliseconds, so we truncate the timestamp if the millisecond flag is set to true + if self._timestamp_precision == TIMESTAMP_PRECISION_MILLISECOND: + milliseconds = value.microsecond // 1000 + return ( + value.strftime('%Y-%m-%dT%H:%M:%S') + f'.{milliseconds:03d}Z' + ) + else: + # Otherwise we continue supporting microseconds in iso8601 for legacy reasons + if value.microsecond > 0: + timestamp_format = ISO8601_MICRO + else: + timestamp_format = ISO8601 + return value.strftime(timestamp_format) + + def _timestamp_unixtimestamp(self, value): + """Return unix timestamp with precision based on timestamp_precision.""" + # As of the addition of the precision flag, we support millisecond precision here as well + if self._timestamp_precision == TIMESTAMP_PRECISION_MILLISECOND: + base_timestamp = calendar.timegm(value.timetuple()) + milliseconds = (value.microsecond // 1000) / 1000.0 + return base_timestamp + milliseconds + else: + return int(calendar.timegm(value.timetuple())) + + def _timestamp_rfc822(self, value): + """Return RFC822 timestamp (always second precision - RFC doesn't support sub-second).""" + # RFC 2822 doesn't support sub-second precision, so always use second precision format + if isinstance(value, datetime.datetime): + value = int(calendar.timegm(value.timetuple())) + return formatdate(value, usegmt=True) + + def _convert_timestamp_to_str(self, value, timestamp_format=None): + if timestamp_format is None: + timestamp_format = self.TIMESTAMP_FORMAT + timestamp_format = timestamp_format.lower() + datetime_obj = parse_to_aware_datetime(value) + converter = getattr(self, f'_timestamp_{timestamp_format}') + final_value = converter(datetime_obj) + return final_value + + def _get_serialized_name(self, shape, default_name): + # Returns the serialized name for the shape if it exists. + # Otherwise it will return the passed in default_name. + return shape.serialization.get('name', default_name) + + def _get_base64(self, value): + # Returns the base64-encoded version of value, handling + # both strings and bytes. The returned value is a string + # via the default encoding. + if isinstance(value, str): + value = value.encode(self.DEFAULT_ENCODING) + return base64.b64encode(value).strip().decode(self.DEFAULT_ENCODING) + + def _expand_host_prefix(self, parameters, operation_model): + operation_endpoint = operation_model.endpoint + if ( + operation_endpoint is None + or 'hostPrefix' not in operation_endpoint + ): + return None + + host_prefix_expression = operation_endpoint['hostPrefix'] + if operation_model.input_shape is None: + return host_prefix_expression + input_members = operation_model.input_shape.members + host_labels = [ + member + for member, shape in input_members.items() + if shape.serialization.get('hostLabel') + ] + format_kwargs = {} + bad_labels = [] + for name in host_labels: + param = parameters[name] + if not HOST_PREFIX_RE.match(param): + bad_labels.append(name) + format_kwargs[name] = param + if bad_labels: + raise ParamValidationError( + report=( + f"Invalid value for parameter(s): {', '.join(bad_labels)}. " + "Must contain only alphanumeric characters, hyphen, " + "or period." + ) + ) + return host_prefix_expression.format(**format_kwargs) + + def _is_shape_flattened(self, shape): + return shape.serialization.get('flattened') + + def _handle_float(self, value): + if value == float("Infinity"): + value = "Infinity" + elif value == float("-Infinity"): + value = "-Infinity" + elif math.isnan(value): + value = "NaN" + return value + + def _handle_query_compatible_trait(self, operation_model, serialized): + if operation_model.service_model.is_query_compatible: + serialized['headers']['x-amzn-query-mode'] = 'true' + + +class QuerySerializer(Serializer): + TIMESTAMP_FORMAT = 'iso8601' + + def serialize_to_request(self, parameters, operation_model): + shape = operation_model.input_shape + serialized = self._create_default_request() + serialized['method'] = operation_model.http.get( + 'method', self.DEFAULT_METHOD + ) + serialized['headers'] = { + 'Content-Type': 'application/x-www-form-urlencoded; charset=utf-8' + } + # The query serializer only deals with body params so + # that's what we hand off the _serialize_* methods. + body_params = self.MAP_TYPE() + body_params['Action'] = operation_model.name + body_params['Version'] = operation_model.metadata['apiVersion'] + if shape is not None: + self._serialize(body_params, parameters, shape) + serialized['body'] = body_params + + host_prefix = self._expand_host_prefix(parameters, operation_model) + if host_prefix is not None: + serialized['host_prefix'] = host_prefix + + return serialized + + def _serialize(self, serialized, value, shape, prefix=''): + # serialized: The dict that is incrementally added to with the + # final serialized parameters. + # value: The current user input value. + # shape: The shape object that describes the structure of the + # input. + # prefix: The incrementally built up prefix for the serialized + # key (i.e Foo.bar.members.1). + method = getattr( + self, + f'_serialize_type_{shape.type_name}', + self._default_serialize, + ) + method(serialized, value, shape, prefix=prefix) + + def _serialize_type_structure(self, serialized, value, shape, prefix=''): + members = shape.members + for key, value in value.items(): + member_shape = members[key] + member_prefix = self._get_serialized_name(member_shape, key) + if prefix: + member_prefix = f'{prefix}.{member_prefix}' + self._serialize(serialized, value, member_shape, member_prefix) + + def _serialize_type_list(self, serialized, value, shape, prefix=''): + if not value: + # The query protocol serializes empty lists. + serialized[prefix] = '' + return + if self._is_shape_flattened(shape): + list_prefix = prefix + if shape.member.serialization.get('name'): + name = self._get_serialized_name(shape.member, default_name='') + # Replace '.Original' with '.{name}'. + list_prefix = '.'.join(prefix.split('.')[:-1] + [name]) + else: + list_name = shape.member.serialization.get('name', 'member') + list_prefix = f'{prefix}.{list_name}' + for i, element in enumerate(value, 1): + element_prefix = f'{list_prefix}.{i}' + element_shape = shape.member + self._serialize(serialized, element, element_shape, element_prefix) + + def _serialize_type_map(self, serialized, value, shape, prefix=''): + if self._is_shape_flattened(shape): + full_prefix = prefix + else: + full_prefix = f'{prefix}.entry' + template = full_prefix + '.{i}.{suffix}' + key_shape = shape.key + value_shape = shape.value + key_suffix = self._get_serialized_name(key_shape, default_name='key') + value_suffix = self._get_serialized_name(value_shape, 'value') + for i, key in enumerate(value, 1): + key_prefix = template.format(i=i, suffix=key_suffix) + value_prefix = template.format(i=i, suffix=value_suffix) + self._serialize(serialized, key, key_shape, key_prefix) + self._serialize(serialized, value[key], value_shape, value_prefix) + + def _serialize_type_blob(self, serialized, value, shape, prefix=''): + # Blob args must be base64 encoded. + serialized[prefix] = self._get_base64(value) + + def _serialize_type_timestamp(self, serialized, value, shape, prefix=''): + serialized[prefix] = self._convert_timestamp_to_str( + value, shape.serialization.get('timestampFormat') + ) + + def _serialize_type_boolean(self, serialized, value, shape, prefix=''): + if value: + serialized[prefix] = 'true' + else: + serialized[prefix] = 'false' + + def _default_serialize(self, serialized, value, shape, prefix=''): + serialized[prefix] = value + + def _serialize_type_float(self, serialized, value, shape, prefix=''): + serialized[prefix] = self._handle_float(value) + + def _serialize_type_double(self, serialized, value, shape, prefix=''): + self._serialize_type_float(serialized, value, shape, prefix) + + +class EC2Serializer(QuerySerializer): + """EC2 specific customizations to the query protocol serializers. + + The EC2 model is almost, but not exactly, similar to the query protocol + serializer. This class encapsulates those differences. The model + will have be marked with a ``protocol`` of ``ec2``, so you don't need + to worry about wiring this class up correctly. + + """ + + def _get_serialized_name(self, shape, default_name): + # Returns the serialized name for the shape if it exists. + # Otherwise it will return the passed in capitalized default_name. + if 'queryName' in shape.serialization: + return shape.serialization['queryName'] + elif 'name' in shape.serialization: + # A locationName is always capitalized + # on input for the ec2 protocol. + name = shape.serialization['name'] + return name[0].upper() + name[1:] + else: + return default_name + + def _serialize_type_list(self, serialized, value, shape, prefix=''): + for i, element in enumerate(value, 1): + element_prefix = f'{prefix}.{i}' + element_shape = shape.member + self._serialize(serialized, element, element_shape, element_prefix) + + +class JSONSerializer(Serializer): + TIMESTAMP_FORMAT = 'unixtimestamp' + + def serialize_to_request(self, parameters, operation_model): + target = '{}.{}'.format( + operation_model.metadata['targetPrefix'], + operation_model.name, + ) + json_version = operation_model.metadata['jsonVersion'] + serialized = self._create_default_request() + serialized['method'] = operation_model.http.get( + 'method', self.DEFAULT_METHOD + ) + serialized['headers'] = { + 'X-Amz-Target': target, + 'Content-Type': f'application/x-amz-json-{json_version}', + } + self._handle_query_compatible_trait(operation_model, serialized) + + body = self.MAP_TYPE() + input_shape = operation_model.input_shape + if input_shape is not None: + self._serialize(body, parameters, input_shape) + serialized['body'] = json.dumps(body).encode(self.DEFAULT_ENCODING) + + host_prefix = self._expand_host_prefix(parameters, operation_model) + if host_prefix is not None: + serialized['host_prefix'] = host_prefix + + return serialized + + def _serialize(self, serialized, value, shape, key=None): + method = getattr( + self, + f'_serialize_type_{shape.type_name}', + self._default_serialize, + ) + method(serialized, value, shape, key) + + def _serialize_type_structure(self, serialized, value, shape, key): + if shape.is_document_type: + serialized[key] = value + else: + if key is not None: + # If a key is provided, this is a result of a recursive + # call so we need to add a new child dict as the value + # of the passed in serialized dict. We'll then add + # all the structure members as key/vals in the new serialized + # dictionary we just created. + new_serialized = self.MAP_TYPE() + serialized[key] = new_serialized + serialized = new_serialized + members = shape.members + for member_key, member_value in value.items(): + member_shape = members[member_key] + if 'name' in member_shape.serialization: + member_key = member_shape.serialization['name'] + self._serialize( + serialized, member_value, member_shape, member_key + ) + + def _serialize_type_map(self, serialized, value, shape, key): + map_obj = self.MAP_TYPE() + serialized[key] = map_obj + for sub_key, sub_value in value.items(): + self._serialize(map_obj, sub_value, shape.value, sub_key) + + def _serialize_type_list(self, serialized, value, shape, key): + list_obj = [] + serialized[key] = list_obj + for list_item in value: + wrapper = {} + # The JSON list serialization is the only case where we aren't + # setting a key on a dict. We handle this by using + # a __current__ key on a wrapper dict to serialize each + # list item before appending it to the serialized list. + self._serialize(wrapper, list_item, shape.member, "__current__") + list_obj.append(wrapper["__current__"]) + + def _default_serialize(self, serialized, value, shape, key): + serialized[key] = value + + def _serialize_type_timestamp(self, serialized, value, shape, key): + serialized[key] = self._convert_timestamp_to_str( + value, shape.serialization.get('timestampFormat') + ) + + def _serialize_type_blob(self, serialized, value, shape, key): + serialized[key] = self._get_base64(value) + + def _serialize_type_float(self, serialized, value, shape, prefix=''): + if isinstance(value, decimal.Decimal): + value = float(value) + serialized[prefix] = self._handle_float(value) + + def _serialize_type_double(self, serialized, value, shape, prefix=''): + self._serialize_type_float(serialized, value, shape, prefix) + + +class CBORSerializer(Serializer): + UNSIGNED_INT_MAJOR_TYPE = 0 + NEGATIVE_INT_MAJOR_TYPE = 1 + BLOB_MAJOR_TYPE = 2 + STRING_MAJOR_TYPE = 3 + LIST_MAJOR_TYPE = 4 + MAP_MAJOR_TYPE = 5 + TAG_MAJOR_TYPE = 6 + FLOAT_AND_SIMPLE_MAJOR_TYPE = 7 + + def _serialize_data_item(self, serialized, value, shape, key=None): + method = getattr(self, f'_serialize_type_{shape.type_name}') + if method is None: + raise ValueError( + f"Unrecognized C2J type: {shape.type_name}, unable to " + f"serialize request" + ) + method(serialized, value, shape, key) + + def _serialize_type_integer(self, serialized, value, shape, key): + if value >= 0: + major_type = self.UNSIGNED_INT_MAJOR_TYPE + else: + major_type = self.NEGATIVE_INT_MAJOR_TYPE + # The only differences in serializing negative and positive integers is + # that for negative, we set the major type to 1 and set the value to -1 + # minus the value + value = -1 - value + additional_info, num_bytes = self._get_additional_info_and_num_bytes( + value + ) + initial_byte = self._get_initial_byte(major_type, additional_info) + if num_bytes == 0: + serialized.extend(initial_byte) + else: + serialized.extend(initial_byte + value.to_bytes(num_bytes, "big")) + + def _serialize_type_long(self, serialized, value, shape, key): + self._serialize_type_integer(serialized, value, shape, key) + + def _serialize_type_blob(self, serialized, value, shape, key): + if isinstance(value, str): + value = value.encode('utf-8') + elif not isinstance(value, (bytes, bytearray)): + # We support file-like objects for blobs; these already have been + # validated to ensure they have a read method + value = value.read() + length = len(value) + additional_info, num_bytes = self._get_additional_info_and_num_bytes( + length + ) + initial_byte = self._get_initial_byte( + self.BLOB_MAJOR_TYPE, additional_info + ) + if num_bytes == 0: + serialized.extend(initial_byte) + else: + serialized.extend(initial_byte + length.to_bytes(num_bytes, "big")) + serialized.extend(value) + + def _serialize_type_string(self, serialized, value, shape, key): + encoded = value.encode('utf-8') + length = len(encoded) + additional_info, num_bytes = self._get_additional_info_and_num_bytes( + length + ) + initial_byte = self._get_initial_byte( + self.STRING_MAJOR_TYPE, additional_info + ) + if num_bytes == 0: + serialized.extend(initial_byte + encoded) + else: + serialized.extend( + initial_byte + length.to_bytes(num_bytes, "big") + encoded + ) + + def _serialize_type_list(self, serialized, value, shape, key): + length = len(value) + additional_info, num_bytes = self._get_additional_info_and_num_bytes( + length + ) + initial_byte = self._get_initial_byte( + self.LIST_MAJOR_TYPE, additional_info + ) + if num_bytes == 0: + serialized.extend(initial_byte) + else: + serialized.extend(initial_byte + length.to_bytes(num_bytes, "big")) + for item in value: + self._serialize_data_item(serialized, item, shape.member) + + def _serialize_type_map(self, serialized, value, shape, key): + length = len(value) + additional_info, num_bytes = self._get_additional_info_and_num_bytes( + length + ) + initial_byte = self._get_initial_byte( + self.MAP_MAJOR_TYPE, additional_info + ) + if num_bytes == 0: + serialized.extend(initial_byte) + else: + serialized.extend(initial_byte + length.to_bytes(num_bytes, "big")) + for key_item, item in value.items(): + self._serialize_data_item(serialized, key_item, shape.key) + self._serialize_data_item(serialized, item, shape.value) + + def _serialize_type_structure(self, serialized, value, shape, key): + if key is not None: + # For nested structures, we need to serialize the key first + self._serialize_data_item(serialized, key, shape.key_shape) + + # Remove `None` values from the dictionary + value = {k: v for k, v in value.items() if v is not None} + + map_length = len(value) + additional_info, num_bytes = self._get_additional_info_and_num_bytes( + map_length + ) + initial_byte = self._get_initial_byte( + self.MAP_MAJOR_TYPE, additional_info + ) + if num_bytes == 0: + serialized.extend(initial_byte) + else: + serialized.extend( + initial_byte + map_length.to_bytes(num_bytes, "big") + ) + + members = shape.members + for member_key, member_value in value.items(): + member_shape = members[member_key] + if 'name' in member_shape.serialization: + member_key = member_shape.serialization['name'] + if member_value is not None: + self._serialize_type_string(serialized, member_key, None, None) + self._serialize_data_item( + serialized, member_value, member_shape + ) + + def _serialize_type_timestamp(self, serialized, value, shape, key): + timestamp = self._convert_timestamp_to_str(value) + tag = 1 # Use tag 1 for unix timestamp + initial_byte = self._get_initial_byte(self.TAG_MAJOR_TYPE, tag) + serialized.extend(initial_byte) # Tagging the timestamp + additional_info, num_bytes = self._get_additional_info_and_num_bytes( + timestamp + ) + + if num_bytes == 0: + initial_byte = self._get_initial_byte( + self.UNSIGNED_INT_MAJOR_TYPE, timestamp + ) + serialized.extend(initial_byte) + else: + initial_byte = self._get_initial_byte( + self.UNSIGNED_INT_MAJOR_TYPE, additional_info + ) + serialized.extend( + initial_byte + timestamp.to_bytes(num_bytes, "big") + ) + + def _serialize_type_float(self, serialized, value, shape, key): + if self._is_special_number(value): + serialized.extend( + self._get_bytes_for_special_numbers(value) + ) # Handle special values like NaN or Infinity + else: + initial_byte = self._get_initial_byte( + self.FLOAT_AND_SIMPLE_MAJOR_TYPE, 26 + ) + serialized.extend(initial_byte + struct.pack(">f", value)) + + def _serialize_type_double(self, serialized, value, shape, key): + if self._is_special_number(value): + serialized.extend( + self._get_bytes_for_special_numbers(value) + ) # Handle special values like NaN or Infinity + else: + initial_byte = self._get_initial_byte( + self.FLOAT_AND_SIMPLE_MAJOR_TYPE, 27 + ) + serialized.extend(initial_byte + struct.pack(">d", value)) + + def _serialize_type_boolean(self, serialized, value, shape, key): + additional_info = 21 if value else 20 + serialized.extend( + self._get_initial_byte( + self.FLOAT_AND_SIMPLE_MAJOR_TYPE, additional_info + ) + ) + + def _get_additional_info_and_num_bytes(self, value): + # Values under 24 can be stored in the initial byte and don't need further + # encoding + if value < 24: + return value, 0 + # Values between 24 and 255 (inclusive) can be stored in 1 byte and + # correspond to additional info 24 + elif value < 256: + return 24, 1 + # Values up to 65535 can be stored in two bytes and correspond to additional + # info 25 + elif value < 65536: + return 25, 2 + # Values up to 4294967296 can be stored in four bytes and correspond to + # additional info 26 + elif value < 4294967296: + return 26, 4 + # The maximum number of bytes in a definite length data items is 8 which + # to additional info 27 + else: + return 27, 8 + + def _get_initial_byte(self, major_type, additional_info): + # The highest order three bits are the major type, so we need to bitshift the + # major type by 5 + major_type_bytes = major_type << 5 + return (major_type_bytes | additional_info).to_bytes(1, "big") + + def _is_special_number(self, value): + return any( + [ + value == float('inf'), + value == float('-inf'), + math.isnan(value), + ] + ) + + def _get_bytes_for_special_numbers(self, value): + additional_info = 25 + initial_byte = self._get_initial_byte( + self.FLOAT_AND_SIMPLE_MAJOR_TYPE, additional_info + ) + if value == float('inf'): + return initial_byte + struct.pack(">H", 0x7C00) + elif value == float('-inf'): + return initial_byte + struct.pack(">H", 0xFC00) + elif math.isnan(value): + return initial_byte + struct.pack(">H", 0x7E00) + + +class BaseRestSerializer(Serializer): + """Base class for rest protocols. + + The only variance between the various rest protocols is the + way that the body is serialized. All other aspects (headers, uri, etc.) + are the same and logic for serializing those aspects lives here. + + Subclasses must implement the ``_serialize_body_params`` method. + + """ + + QUERY_STRING_TIMESTAMP_FORMAT = 'iso8601' + HEADER_TIMESTAMP_FORMAT = 'rfc822' + # This is a list of known values for the "location" key in the + # serialization dict. The location key tells us where on the request + # to put the serialized value. + KNOWN_LOCATIONS = ['uri', 'querystring', 'header', 'headers'] + + def serialize_to_request(self, parameters, operation_model): + serialized = self._create_default_request() + serialized['method'] = operation_model.http.get( + 'method', self.DEFAULT_METHOD + ) + shape = operation_model.input_shape + + host_prefix = self._expand_host_prefix(parameters, operation_model) + if host_prefix is not None: + serialized['host_prefix'] = host_prefix + + if shape is None: + serialized['url_path'] = operation_model.http['requestUri'] + return serialized + shape_members = shape.members + # While the ``serialized`` key holds the final serialized request + # data, we need interim dicts for the various locations of the + # request. We need this for the uri_path_kwargs and the + # query_string_kwargs because they are templated, so we need + # to gather all the needed data for the string template, + # then we render the template. The body_kwargs is needed + # because once we've collected them all, we run them through + # _serialize_body_params, which for rest-json, creates JSON, + # and for rest-xml, will create XML. This is what the + # ``partitioned`` dict below is for. + partitioned = { + 'uri_path_kwargs': self.MAP_TYPE(), + 'query_string_kwargs': self.MAP_TYPE(), + 'body_kwargs': self.MAP_TYPE(), + 'headers': self.MAP_TYPE(), + } + for param_name, param_value in parameters.items(): + if param_value is None: + # Don't serialize any parameter with a None value. + continue + self._partition_parameters( + partitioned, param_name, param_value, shape_members + ) + serialized['url_path'] = self._render_uri_template( + operation_model.http['requestUri'], partitioned['uri_path_kwargs'] + ) + + if 'authPath' in operation_model.http: + serialized['auth_path'] = self._render_uri_template( + operation_model.http['authPath'], + partitioned['uri_path_kwargs'], + ) + # Note that we lean on the http implementation to handle the case + # where the requestUri path already has query parameters. + # The bundled http client, requests, already supports this. + serialized['query_string'] = partitioned['query_string_kwargs'] + if partitioned['headers']: + serialized['headers'] = partitioned['headers'] + self._serialize_payload( + partitioned, parameters, serialized, shape, shape_members + ) + self._serialize_content_type(serialized, shape, shape_members) + + return serialized + + def _render_uri_template(self, uri_template, params): + # We need to handle two cases:: + # + # /{Bucket}/foo + # /{Key+}/bar + # A label ending with '+' is greedy. There can only + # be one greedy key. + encoded_params = {} + for template_param in re.findall(r'{(.*?)}', uri_template): + if template_param.endswith('+'): + encoded_params[template_param] = percent_encode( + params[template_param[:-1]], safe='/~' + ) + else: + encoded_params[template_param] = percent_encode( + params[template_param] + ) + return uri_template.format(**encoded_params) + + def _serialize_payload( + self, partitioned, parameters, serialized, shape, shape_members + ): + # partitioned - The user input params partitioned by location. + # parameters - The user input params. + # serialized - The final serialized request dict. + # shape - Describes the expected input shape + # shape_members - The members of the input struct shape + payload_member = shape.serialization.get('payload') + if self._has_streaming_payload(payload_member, shape_members): + # If it's streaming, then the body is just the + # value of the payload. + body_payload = parameters.get(payload_member, b'') + body_payload = self._encode_payload(body_payload) + serialized['body'] = body_payload + elif payload_member is not None: + # If there's a payload member, we serialized that + # member to they body. + body_params = parameters.get(payload_member) + if body_params is not None: + serialized['body'] = self._serialize_body_params( + body_params, shape_members[payload_member] + ) + else: + serialized['body'] = self._serialize_empty_body() + elif partitioned['body_kwargs']: + serialized['body'] = self._serialize_body_params( + partitioned['body_kwargs'], shape + ) + elif self._requires_empty_body(shape): + serialized['body'] = self._serialize_empty_body() + + def _serialize_empty_body(self): + return b'' + + def _serialize_content_type(self, serialized, shape, shape_members): + """ + Some protocols require varied Content-Type headers + depending on user input. This allows subclasses to apply + this conditionally. + """ + pass + + def _requires_empty_body(self, shape): + """ + Some protocols require a specific body to represent an empty + payload. This allows subclasses to apply this conditionally. + """ + return False + + def _has_streaming_payload(self, payload, shape_members): + """Determine if payload is streaming (a blob or string).""" + return payload is not None and shape_members[payload].type_name in ( + 'blob', + 'string', + ) + + def _encode_payload(self, body): + if isinstance(body, str): + return body.encode(self.DEFAULT_ENCODING) + return body + + def _partition_parameters( + self, partitioned, param_name, param_value, shape_members + ): + # This takes the user provided input parameter (``param``) + # and figures out where they go in the request dict. + # Some params are HTTP headers, some are used in the URI, some + # are in the request body. This method deals with this. + member = shape_members[param_name] + location = member.serialization.get('location') + key_name = member.serialization.get('name', param_name) + if location == 'uri': + uri_path_value = self._get_uri_and_query_string_value( + param_value, member + ) + partitioned['uri_path_kwargs'][key_name] = uri_path_value + elif location == 'querystring': + if isinstance(param_value, dict): + partitioned['query_string_kwargs'].update(param_value) + elif member.type_name == 'list': + new_param = [ + self._get_uri_and_query_string_value(value, member.member) + for value in param_value + ] + partitioned['query_string_kwargs'][key_name] = new_param + else: + new_param = self._get_uri_and_query_string_value( + param_value, member + ) + partitioned['query_string_kwargs'][key_name] = new_param + elif location == 'header': + shape = shape_members[param_name] + if not param_value and shape.type_name == 'list': + # Empty lists should not be set on the headers + return + partitioned['headers'][key_name] = self._convert_header_value( + shape, param_value + ) + elif location == 'headers': + # 'headers' is a bit of an oddball. The ``key_name`` + # is actually really a prefix for the header names: + header_prefix = key_name + # The value provided by the user is a dict so we'll be + # creating multiple header key/val pairs. The key + # name to use for each header is the header_prefix (``key_name``) + # plus the key provided by the user. + self._do_serialize_header_map( + header_prefix, partitioned['headers'], param_value + ) + else: + partitioned['body_kwargs'][param_name] = param_value + + def _get_uri_and_query_string_value(self, param_value, member): + if member.type_name == 'boolean': + return str(param_value).lower() + elif member.type_name == 'timestamp': + timestamp_format = member.serialization.get( + 'timestampFormat', self.QUERY_STRING_TIMESTAMP_FORMAT + ) + return self._convert_timestamp_to_str( + param_value, timestamp_format + ) + elif member.type_name in ['float', 'double']: + return str(self._handle_float(param_value)) + return param_value + + def _do_serialize_header_map(self, header_prefix, headers, user_input): + for key, val in user_input.items(): + full_key = header_prefix + key + headers[full_key] = val + + def _serialize_body_params(self, params, shape): + raise NotImplementedError('_serialize_body_params') + + def _convert_header_value(self, shape, value): + if shape.type_name == 'timestamp': + datetime_obj = parse_to_aware_datetime(value) + timestamp = calendar.timegm(datetime_obj.utctimetuple()) + timestamp_format = shape.serialization.get( + 'timestampFormat', self.HEADER_TIMESTAMP_FORMAT + ) + return str( + self._convert_timestamp_to_str(timestamp, timestamp_format) + ) + elif shape.type_name == 'list': + if shape.member.type_name == "string": + converted_value = [ + self._escape_header_list_string(v) + for v in value + if v is not None + ] + else: + converted_value = [ + self._convert_header_value(shape.member, v) + for v in value + if v is not None + ] + return ",".join(converted_value) + elif is_json_value_header(shape): + # Serialize with no spaces after separators to save space in + # the header. + return self._get_base64(json.dumps(value, separators=(',', ':'))) + elif shape.type_name == 'boolean': + return str(value).lower() + elif shape.type_name in ['float', 'double']: + return str(self._handle_float(value)) + else: + return str(value) + + def _escape_header_list_string(self, value): + # Escapes a header list string by wrapping it in double quotes if it contains + # a comma or a double quote, and escapes any internal double quotes. + if '"' in value or ',' in value: + return '"' + value.replace('"', '\\"') + '"' + else: + return value + + +class BaseRpcV2Serializer(Serializer): + """Base class for RPCv2 protocols. + + The only variance between the various RPCv2 protocols is the + way that the body is serialized. All other aspects (headers, uri, etc.) + are the same and logic for serializing those aspects lives here. + + Subclasses must implement the ``_serialize_body_params`` and + ``_serialize_headers`` methods. + + """ + + def serialize_to_request(self, parameters, operation_model): + serialized = self._create_default_request() + service_name = operation_model.service_model.metadata['targetPrefix'] + operation_name = operation_model.name + serialized['url_path'] = ( + f'/service/{service_name}/operation/{operation_name}' + ) + + input_shape = operation_model.input_shape + if input_shape is not None: + self._serialize_payload(parameters, serialized, input_shape) + + self._serialize_headers(serialized, operation_model) + + return serialized + + def _serialize_payload(self, parameters, serialized, shape): + body_payload = self._serialize_body_params(parameters, shape) + serialized['body'] = body_payload + + def _serialize_headers(self, serialized, operation_model): + raise NotImplementedError("_serialize_headers") + + def _serialize_body_params(self, parameters, shape): + raise NotImplementedError("_serialize_body_params") + + +class RestJSONSerializer(BaseRestSerializer, JSONSerializer): + def _serialize_empty_body(self): + return b'{}' + + def _requires_empty_body(self, shape): + """ + Serialize an empty JSON object whenever the shape has + members not targeting a location. + """ + for member, val in shape.members.items(): + if 'location' not in val.serialization: + return True + return False + + def _serialize_content_type(self, serialized, shape, shape_members): + """Set Content-Type to application/json for all structured bodies.""" + payload = shape.serialization.get('payload') + if self._has_streaming_payload(payload, shape_members): + # Don't apply content-type to streaming bodies + return + + has_body = serialized['body'] != b'' + has_content_type = has_header('Content-Type', serialized['headers']) + if has_body and not has_content_type: + serialized['headers']['Content-Type'] = 'application/json' + + def _serialize_body_params(self, params, shape): + serialized_body = self.MAP_TYPE() + self._serialize(serialized_body, params, shape) + return json.dumps(serialized_body).encode(self.DEFAULT_ENCODING) + + +class RestXMLSerializer(BaseRestSerializer): + TIMESTAMP_FORMAT = 'iso8601' + + def _serialize_body_params(self, params, shape): + root_name = shape.serialization['name'] + pseudo_root = ElementTree.Element('') + self._serialize(shape, params, pseudo_root, root_name) + real_root = list(pseudo_root)[0] + return ElementTree.tostring(real_root, encoding=self.DEFAULT_ENCODING) + + def _serialize(self, shape, params, xmlnode, name): + method = getattr( + self, + f'_serialize_type_{shape.type_name}', + self._default_serialize, + ) + method(xmlnode, params, shape, name) + + def _serialize_type_structure(self, xmlnode, params, shape, name): + structure_node = ElementTree.SubElement(xmlnode, name) + + self._add_xml_namespace(shape, structure_node) + for key, value in params.items(): + member_shape = shape.members[key] + member_name = member_shape.serialization.get('name', key) + # We need to special case member shapes that are marked as an + # xmlAttribute. Rather than serializing into an XML child node, + # we instead serialize the shape to an XML attribute of the + # *current* node. + if value is None: + # Don't serialize any param whose value is None. + return + if member_shape.serialization.get('xmlAttribute'): + # xmlAttributes must have a serialization name. + xml_attribute_name = member_shape.serialization['name'] + structure_node.attrib[xml_attribute_name] = value + continue + self._serialize(member_shape, value, structure_node, member_name) + + def _serialize_type_list(self, xmlnode, params, shape, name): + member_shape = shape.member + if shape.serialization.get('flattened'): + element_name = name + list_node = xmlnode + else: + element_name = member_shape.serialization.get('name', 'member') + list_node = ElementTree.SubElement(xmlnode, name) + self._add_xml_namespace(shape, list_node) + for item in params: + self._serialize(member_shape, item, list_node, element_name) + + def _serialize_type_map(self, xmlnode, params, shape, name): + # Given the ``name`` of MyMap, and input of {"key1": "val1"} + # we serialize this as: + # + # + # key1 + # val1 + # + # + if not self._is_shape_flattened(shape): + node = ElementTree.SubElement(xmlnode, name) + self._add_xml_namespace(shape, node) + + for key, value in params.items(): + sub_node = ( + ElementTree.SubElement(xmlnode, name) + if self._is_shape_flattened(shape) + else ElementTree.SubElement(node, 'entry') + ) + key_name = self._get_serialized_name(shape.key, default_name='key') + val_name = self._get_serialized_name( + shape.value, default_name='value' + ) + self._serialize(shape.key, key, sub_node, key_name) + self._serialize(shape.value, value, sub_node, val_name) + + def _serialize_type_boolean(self, xmlnode, params, shape, name): + # For scalar types, the 'params' attr is actually just a scalar + # value representing the data we need to serialize as a boolean. + # It will either be 'true' or 'false' + node = ElementTree.SubElement(xmlnode, name) + if params: + str_value = 'true' + else: + str_value = 'false' + node.text = str_value + self._add_xml_namespace(shape, node) + + def _serialize_type_blob(self, xmlnode, params, shape, name): + node = ElementTree.SubElement(xmlnode, name) + node.text = self._get_base64(params) + self._add_xml_namespace(shape, node) + + def _serialize_type_timestamp(self, xmlnode, params, shape, name): + node = ElementTree.SubElement(xmlnode, name) + node.text = str( + self._convert_timestamp_to_str( + params, shape.serialization.get('timestampFormat') + ) + ) + self._add_xml_namespace(shape, node) + + def _serialize_type_float(self, xmlnode, params, shape, name): + node = ElementTree.SubElement(xmlnode, name) + node.text = str(self._handle_float(params)) + self._add_xml_namespace(shape, node) + + def _serialize_type_double(self, xmlnode, params, shape, name): + self._serialize_type_float(xmlnode, params, shape, name) + + def _default_serialize(self, xmlnode, params, shape, name): + node = ElementTree.SubElement(xmlnode, name) + node.text = str(params) + self._add_xml_namespace(shape, node) + + def _add_xml_namespace(self, shape, structure_node): + if 'xmlNamespace' in shape.serialization: + namespace_metadata = shape.serialization['xmlNamespace'] + attribute_name = 'xmlns' + if isinstance(namespace_metadata, dict): + if namespace_metadata.get('prefix'): + attribute_name += f":{namespace_metadata['prefix']}" + structure_node.attrib[attribute_name] = namespace_metadata[ + 'uri' + ] + elif isinstance(namespace_metadata, str): + structure_node.attrib[attribute_name] = namespace_metadata + + +class RpcV2CBORSerializer(BaseRpcV2Serializer, CBORSerializer): + TIMESTAMP_FORMAT = 'unixtimestamp' + + def serialize_to_request(self, parameters, operation_model): + register_feature_id('PROTOCOL_RPC_V2_CBOR') + return super().serialize_to_request(parameters, operation_model) + + def _serialize_body_params(self, parameters, input_shape): + body = bytearray() + self._serialize_data_item(body, parameters, input_shape) + return bytes(body) + + def _serialize_headers(self, serialized, operation_model): + serialized['headers']['smithy-protocol'] = 'rpc-v2-cbor' + + if operation_model.has_event_stream_output: + header_val = 'application/vnd.amazon.eventstream' + else: + header_val = 'application/cbor' + self._handle_query_compatible_trait(operation_model, serialized) + + has_body = serialized['body'] != b'' + has_content_type = has_header('Content-Type', serialized['headers']) + + serialized['headers']['Accept'] = header_val + if not has_content_type and has_body: + serialized['headers']['Content-Type'] = header_val + + +SERIALIZERS = { + 'ec2': EC2Serializer, + 'query': QuerySerializer, + 'json': JSONSerializer, + 'rest-json': RestJSONSerializer, + 'rest-xml': RestXMLSerializer, + 'smithy-rpc-v2-cbor': RpcV2CBORSerializer, +} diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/session.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/session.py new file mode 100644 index 0000000000000000000000000000000000000000..c5a61b2f8b2b38cd09052edf9b4f002b8c6946e1 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/session.py @@ -0,0 +1,1330 @@ +# Copyright (c) 2012-2013 Mitch Garnaat http://garnaat.org/ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +""" +This module contains the main interface to the botocore package, the +Session object. +""" + +import copy +import logging +import os +import platform +import socket +import warnings + +import botocore.client +import botocore.configloader +import botocore.credentials +import botocore.tokens +from botocore import ( + UNSIGNED, + __version__, + handlers, + invoke_initializers, + monitoring, + paginate, + retryhandler, + translate, + waiter, +) +from botocore.compat import ( + HAS_CRT, # noqa: F401 + MutableMapping, +) +from botocore.configprovider import ( + BOTOCORE_DEFAUT_SESSION_VARIABLES, + ConfigChainFactory, + ConfiguredEndpointProvider, + ConfigValueStore, + DefaultConfigResolver, + SmartDefaultsConfigStoreFactory, + create_botocore_default_config_mapping, +) +from botocore.context import get_context, with_current_context +from botocore.errorfactory import ClientExceptionsFactory +from botocore.exceptions import ( + ConfigNotFound, + InvalidDefaultsMode, + PartialCredentialsError, + ProfileNotFound, + UnknownServiceError, +) +from botocore.hooks import ( + EventAliaser, + HierarchicalEmitter, + first_non_none_response, +) +from botocore.loaders import create_loader +from botocore.model import ServiceModel +from botocore.parsers import ResponseParserFactory +from botocore.plugin import get_botocore_plugins, load_client_plugins +from botocore.regions import EndpointResolver +from botocore.useragent import UserAgentString, register_feature_id +from botocore.utils import ( + EVENT_ALIASES, + IMDSRegionProvider, + validate_region_name, +) + +logger = logging.getLogger(__name__) + + +class Session: + """ + The Session object collects together useful functionality + from `botocore` as well as important data such as configuration + information and credentials into a single, easy-to-use object. + + :ivar available_profiles: A list of profiles defined in the config + file associated with this session. + :ivar profile: The current profile. + """ + + SESSION_VARIABLES = copy.copy(BOTOCORE_DEFAUT_SESSION_VARIABLES) + + #: The default format string to use when configuring the botocore logger. + LOG_FORMAT = '%(asctime)s - %(name)s - %(levelname)s - %(message)s' + + def __init__( + self, + session_vars=None, + event_hooks=None, + include_builtin_handlers=True, + profile=None, + ): + """ + Create a new Session object. + + :type session_vars: dict + :param session_vars: A dictionary that is used to override some or all + of the environment variables associated with this session. The + key/value pairs defined in this dictionary will override the + corresponding variables defined in ``SESSION_VARIABLES``. + + :type event_hooks: BaseEventHooks + :param event_hooks: The event hooks object to use. If one is not + provided, an event hooks object will be automatically created + for you. + + :type include_builtin_handlers: bool + :param include_builtin_handlers: Indicates whether or not to + automatically register builtin handlers. + + :type profile: str + :param profile: The name of the profile to use for this + session. Note that the profile can only be set when + the session is created. + + """ + if event_hooks is None: + self._original_handler = HierarchicalEmitter() + else: + self._original_handler = event_hooks + self._events = EventAliaser(self._original_handler) + if include_builtin_handlers: + self._register_builtin_handlers(self._events) + self.user_agent_name = 'Botocore' + self.user_agent_version = __version__ + self.user_agent_extra = '' + # The _profile attribute is just used to cache the value + # of the current profile to avoid going through the normal + # config lookup process each access time. + self._profile = None + self._config = None + self._credentials = None + self._auth_token = None + self._profile_map = None + # This is a dict that stores per session specific config variable + # overrides via set_config_variable(). + self._session_instance_vars = {} + if profile is not None: + self._session_instance_vars['profile'] = profile + self._client_config = None + self._last_client_region_used = None + self._components = ComponentLocator() + self._internal_components = ComponentLocator() + self._register_components() + self.session_var_map = SessionVarDict(self, self.SESSION_VARIABLES) + if session_vars is not None: + self.session_var_map.update(session_vars) + invoke_initializers(self) + + def _register_components(self): + self._register_credential_provider() + self._register_token_provider() + self._register_data_loader() + self._register_endpoint_resolver() + self._register_event_emitter() + self._register_response_parser_factory() + self._register_exceptions_factory() + self._register_config_store() + self._register_monitor() + self._register_default_config_resolver() + self._register_smart_defaults_factory() + self._register_user_agent_creator() + + def _register_event_emitter(self): + self._components.register_component('event_emitter', self._events) + + def _register_token_provider(self): + self._components.lazy_register_component( + 'token_provider', self._create_token_resolver + ) + + def _create_token_resolver(self): + return botocore.tokens.create_token_resolver(self) + + def _register_credential_provider(self): + self._components.lazy_register_component( + 'credential_provider', self._create_credential_resolver + ) + + def _create_credential_resolver(self): + return botocore.credentials.create_credential_resolver( + self, region_name=self._last_client_region_used + ) + + def _register_data_loader(self): + self._components.lazy_register_component( + 'data_loader', + lambda: create_loader(self.get_config_variable('data_path')), + ) + + def _register_endpoint_resolver(self): + def create_default_resolver(): + loader = self.get_component('data_loader') + endpoints, path = loader.load_data_with_path('endpoints') + uses_builtin = loader.is_builtin_path(path) + return EndpointResolver(endpoints, uses_builtin_data=uses_builtin) + + self._internal_components.lazy_register_component( + 'endpoint_resolver', create_default_resolver + ) + + def _register_default_config_resolver(self): + def create_default_config_resolver(): + loader = self.get_component('data_loader') + defaults = loader.load_data('sdk-default-configuration') + return DefaultConfigResolver(defaults) + + self._internal_components.lazy_register_component( + 'default_config_resolver', create_default_config_resolver + ) + + def _register_smart_defaults_factory(self): + def create_smart_defaults_factory(): + default_config_resolver = self._get_internal_component( + 'default_config_resolver' + ) + imds_region_provider = IMDSRegionProvider(session=self) + return SmartDefaultsConfigStoreFactory( + default_config_resolver, imds_region_provider + ) + + self._internal_components.lazy_register_component( + 'smart_defaults_factory', create_smart_defaults_factory + ) + + def _register_response_parser_factory(self): + self._components.register_component( + 'response_parser_factory', ResponseParserFactory() + ) + + def _register_exceptions_factory(self): + self._internal_components.register_component( + 'exceptions_factory', ClientExceptionsFactory() + ) + + def _register_builtin_handlers(self, events): + for spec in handlers.BUILTIN_HANDLERS: + if len(spec) == 2: + event_name, handler = spec + self.register(event_name, handler) + else: + event_name, handler, register_type = spec + if register_type is handlers.REGISTER_FIRST: + self._events.register_first(event_name, handler) + elif register_type is handlers.REGISTER_LAST: + self._events.register_last(event_name, handler) + + def _register_config_store(self): + config_store_component = ConfigValueStore( + mapping=create_botocore_default_config_mapping(self) + ) + self._components.register_component( + 'config_store', config_store_component + ) + + def _register_monitor(self): + self._internal_components.lazy_register_component( + 'monitor', self._create_csm_monitor + ) + + def _register_user_agent_creator(self): + uas = UserAgentString.from_environment() + self._components.register_component('user_agent_creator', uas) + + def _create_csm_monitor(self): + if self.get_config_variable('csm_enabled'): + client_id = self.get_config_variable('csm_client_id') + host = self.get_config_variable('csm_host') + port = self.get_config_variable('csm_port') + handler = monitoring.Monitor( + adapter=monitoring.MonitorEventAdapter(), + publisher=monitoring.SocketPublisher( + socket=socket.socket(socket.AF_INET, socket.SOCK_DGRAM), + host=host, + port=port, + serializer=monitoring.CSMSerializer( + csm_client_id=client_id + ), + ), + ) + return handler + return None + + def _get_crt_version(self): + user_agent_creator = self.get_component('user_agent_creator') + return user_agent_creator._crt_version or 'Unknown' + + @property + def available_profiles(self): + return list(self._build_profile_map().keys()) + + def _build_profile_map(self): + # This will build the profile map if it has not been created, + # otherwise it will return the cached value. The profile map + # is a list of profile names, to the config values for the profile. + if self._profile_map is None: + self._profile_map = self.full_config['profiles'] + return self._profile_map + + @property + def profile(self): + if self._profile is None: + profile = self.get_config_variable('profile') + self._profile = profile + return self._profile + + def get_config_variable(self, logical_name, methods=None): + if methods is not None: + return self._get_config_variable_with_custom_methods( + logical_name, methods + ) + return self.get_component('config_store').get_config_variable( + logical_name + ) + + def _get_config_variable_with_custom_methods(self, logical_name, methods): + # If a custom list of methods was supplied we need to perserve the + # behavior with the new system. To do so a new chain that is a copy of + # the old one will be constructed, but only with the supplied methods + # being added to the chain. This chain will be consulted for a value + # and then thrown out. This is not efficient, nor is the methods arg + # used in botocore, this is just for backwards compatibility. + chain_builder = SubsetChainConfigFactory(session=self, methods=methods) + mapping = create_botocore_default_config_mapping(self) + for name, config_options in self.session_var_map.items(): + config_name, env_vars, default, typecast = config_options + build_chain_config_args = { + 'conversion_func': typecast, + 'default': default, + } + if 'instance' in methods: + build_chain_config_args['instance_name'] = name + if 'env' in methods: + build_chain_config_args['env_var_names'] = env_vars + if 'config' in methods: + build_chain_config_args['config_property_name'] = config_name + mapping[name] = chain_builder.create_config_chain( + **build_chain_config_args + ) + config_store_component = ConfigValueStore(mapping=mapping) + value = config_store_component.get_config_variable(logical_name) + return value + + def set_config_variable(self, logical_name, value): + """Set a configuration variable to a specific value. + + By using this method, you can override the normal lookup + process used in ``get_config_variable`` by explicitly setting + a value. Subsequent calls to ``get_config_variable`` will + use the ``value``. This gives you per-session specific + configuration values. + + :: + >>> # Assume logical name 'foo' maps to env var 'FOO' + >>> os.environ['FOO'] = 'myvalue' + >>> s.get_config_variable('foo') + 'myvalue' + >>> s.set_config_variable('foo', 'othervalue') + >>> s.get_config_variable('foo') + 'othervalue' + + :type logical_name: str + :param logical_name: The logical name of the session variable + you want to set. These are the keys in ``SESSION_VARIABLES``. + :param value: The value to associate with the config variable. + + """ + logger.debug( + "Setting config variable for %s to %r", + logical_name, + value, + ) + self._session_instance_vars[logical_name] = value + + def instance_variables(self): + return copy.copy(self._session_instance_vars) + + def get_scoped_config(self): + """ + Returns the config values from the config file scoped to the current + profile. + + The configuration data is loaded **only** from the config file. + It does not resolve variables based on different locations + (e.g. first from the session instance, then from environment + variables, then from the config file). If you want this lookup + behavior, use the ``get_config_variable`` method instead. + + Note that this configuration is specific to a single profile (the + ``profile`` session variable). + + If the ``profile`` session variable is set and the profile does + not exist in the config file, a ``ProfileNotFound`` exception + will be raised. + + :raises: ConfigNotFound, ConfigParseError, ProfileNotFound + :rtype: dict + + """ + profile_name = self.get_config_variable('profile') + profile_map = self._build_profile_map() + # If a profile is not explicitly set return the default + # profile config or an empty config dict if we don't have + # a default profile. + if profile_name is None: + return profile_map.get('default', {}) + elif profile_name not in profile_map: + # Otherwise if they specified a profile, it has to + # exist (even if it's the default profile) otherwise + # we complain. + raise ProfileNotFound(profile=profile_name) + else: + return profile_map[profile_name] + + @property + def full_config(self): + """Return the parsed config file. + + The ``get_config`` method returns the config associated with the + specified profile. This property returns the contents of the + **entire** config file. + + :rtype: dict + """ + if self._config is None: + try: + config_file = self.get_config_variable('config_file') + self._config = botocore.configloader.load_config(config_file) + except ConfigNotFound: + self._config = {'profiles': {}} + try: + # Now we need to inject the profiles from the + # credentials file. We don't actually need the values + # in the creds file, only the profile names so that we + # can validate the user is not referring to a nonexistent + # profile. + cred_file = self.get_config_variable('credentials_file') + cred_profiles = botocore.configloader.raw_config_parse( + cred_file + ) + for profile in cred_profiles: + cred_vars = cred_profiles[profile] + if profile not in self._config['profiles']: + self._config['profiles'][profile] = cred_vars + else: + self._config['profiles'][profile].update(cred_vars) + except ConfigNotFound: + pass + return self._config + + def get_default_client_config(self): + """Retrieves the default config for creating clients + + :rtype: botocore.client.Config + :returns: The default client config object when creating clients. If + the value is ``None`` then there is no default config object + attached to the session. + """ + return self._client_config + + def set_default_client_config(self, client_config): + """Sets the default config for creating clients + + :type client_config: botocore.client.Config + :param client_config: The default client config object when creating + clients. If the value is ``None`` then there is no default config + object attached to the session. + """ + self._client_config = client_config + + def set_credentials( + self, access_key, secret_key, token=None, account_id=None + ): + """ + Manually create credentials for this session. If you would + prefer to use botocore without a config file, environment variables, + or IAM roles, you can pass explicit credentials into this + method to establish credentials for this session. + + :type access_key: str + :param access_key: The access key part of the credentials. + + :type secret_key: str + :param secret_key: The secret key part of the credentials. + + :type token: str + :param token: An option session token used by STS session + credentials. + + :type account_id: str + :param account_id: An optional account ID part of the credentials. + """ + self._credentials = botocore.credentials.Credentials( + access_key, secret_key, token, account_id=account_id + ) + + def get_credentials(self): + """ + Return the :class:`botocore.credential.Credential` object + associated with this session. If the credentials have not + yet been loaded, this will attempt to load them. If they + have already been loaded, this will return the cached + credentials. + + """ + if self._credentials is None: + self._credentials = self._components.get_component( + 'credential_provider' + ).load_credentials() + return self._credentials + + def get_auth_token(self, **kwargs): + """ + Return the :class:`botocore.tokens.AuthToken` object associated with + this session. If the authorization token has not yet been loaded, this + will attempt to load it. If it has already been loaded, this will + return the cached authorization token. + + """ + provider = self._components.get_component('token_provider') + + signing_name = kwargs.get('signing_name') + if signing_name is not None: + auth_token = provider.load_token(signing_name=signing_name) + if auth_token is not None: + return auth_token + + if self._auth_token is None: + self._auth_token = provider.load_token() + return self._auth_token + + def user_agent(self): + """ + Return a string suitable for use as a User-Agent header. + The string will be of the form: + + / Python/ / + + Where: + + - agent_name is the value of the `user_agent_name` attribute + of the session object (`Botocore` by default). + - agent_version is the value of the `user_agent_version` + attribute of the session object (the botocore version by default). + by default. + - py_ver is the version of the Python interpreter beng used. + - plat_name is the name of the platform (e.g. Darwin) + - plat_ver is the version of the platform + - exec_env is exec-env/$AWS_EXECUTION_ENV + + If ``user_agent_extra`` is not empty, then this value will be + appended to the end of the user agent string. + + """ + base = ( + f'{self.user_agent_name}/{self.user_agent_version} ' + f'Python/{platform.python_version()} ' + f'{platform.system()}/{platform.release()}' + ) + if HAS_CRT: + base += f' awscrt/{self._get_crt_version()}' + if os.environ.get('AWS_EXECUTION_ENV') is not None: + base += ' exec-env/{}'.format(os.environ.get('AWS_EXECUTION_ENV')) + if self.user_agent_extra: + base += f' {self.user_agent_extra}' + + return base + + def get_data(self, data_path): + """ + Retrieve the data associated with `data_path`. + + :type data_path: str + :param data_path: The path to the data you wish to retrieve. + """ + return self.get_component('data_loader').load_data(data_path) + + def get_service_model(self, service_name, api_version=None): + """Get the service model object. + + :type service_name: string + :param service_name: The service name + + :type api_version: string + :param api_version: The API version of the service. If none is + provided, then the latest API version will be used. + + :rtype: L{botocore.model.ServiceModel} + :return: The botocore service model for the service. + + """ + service_description = self.get_service_data(service_name, api_version) + return ServiceModel(service_description, service_name=service_name) + + def get_waiter_model(self, service_name, api_version=None): + loader = self.get_component('data_loader') + waiter_config = loader.load_service_model( + service_name, 'waiters-2', api_version + ) + return waiter.WaiterModel(waiter_config) + + def get_paginator_model(self, service_name, api_version=None): + loader = self.get_component('data_loader') + paginator_config = loader.load_service_model( + service_name, 'paginators-1', api_version + ) + return paginate.PaginatorModel(paginator_config) + + def get_service_data(self, service_name, api_version=None): + """ + Retrieve the fully merged data associated with a service. + """ + data_path = service_name + service_data = self.get_component('data_loader').load_service_model( + data_path, type_name='service-2', api_version=api_version + ) + service_id = EVENT_ALIASES.get(service_name, service_name) + self._events.emit( + f'service-data-loaded.{service_id}', + service_data=service_data, + service_name=service_name, + session=self, + ) + return service_data + + def get_available_services(self): + """ + Return a list of names of available services. + """ + return self.get_component('data_loader').list_available_services( + type_name='service-2' + ) + + def set_debug_logger(self, logger_name='botocore'): + """ + Convenience function to quickly configure full debug output + to go to the console. + """ + self.set_stream_logger(logger_name, logging.DEBUG) + + def set_stream_logger( + self, logger_name, log_level, stream=None, format_string=None + ): + """ + Convenience method to configure a stream logger. + + :type logger_name: str + :param logger_name: The name of the logger to configure + + :type log_level: str + :param log_level: The log level to set for the logger. This + is any param supported by the ``.setLevel()`` method of + a ``Log`` object. + + :type stream: file + :param stream: A file like object to log to. If none is provided + then sys.stderr will be used. + + :type format_string: str + :param format_string: The format string to use for the log + formatter. If none is provided this will default to + ``self.LOG_FORMAT``. + + """ + log = logging.getLogger(logger_name) + log.setLevel(logging.DEBUG) + + ch = logging.StreamHandler(stream) + ch.setLevel(log_level) + + # create formatter + if format_string is None: + format_string = self.LOG_FORMAT + formatter = logging.Formatter(format_string) + + # add formatter to ch + ch.setFormatter(formatter) + + # add ch to logger + log.addHandler(ch) + + def set_file_logger(self, log_level, path, logger_name='botocore'): + """ + Convenience function to quickly configure any level of logging + to a file. + + :type log_level: int + :param log_level: A log level as specified in the `logging` module + + :type path: string + :param path: Path to the log file. The file will be created + if it doesn't already exist. + """ + log = logging.getLogger(logger_name) + log.setLevel(logging.DEBUG) + + # create console handler and set level to debug + ch = logging.FileHandler(path) + ch.setLevel(log_level) + + # create formatter + formatter = logging.Formatter(self.LOG_FORMAT) + + # add formatter to ch + ch.setFormatter(formatter) + + # add ch to logger + log.addHandler(ch) + + def register( + self, event_name, handler, unique_id=None, unique_id_uses_count=False + ): + """Register a handler with an event. + + :type event_name: str + :param event_name: The name of the event. + + :type handler: callable + :param handler: The callback to invoke when the event + is emitted. This object must be callable, and must + accept ``**kwargs``. If either of these preconditions are + not met, a ``ValueError`` will be raised. + + :type unique_id: str + :param unique_id: An optional identifier to associate with the + registration. A unique_id can only be used once for + the entire session registration (unless it is unregistered). + This can be used to prevent an event handler from being + registered twice. + + :param unique_id_uses_count: boolean + :param unique_id_uses_count: Specifies if the event should maintain + a count when a ``unique_id`` is registered and unregisted. The + event can only be completely unregistered once every register call + using the unique id has been matched by an ``unregister`` call. + If ``unique_id`` is specified, subsequent ``register`` + calls must use the same value for ``unique_id_uses_count`` + as the ``register`` call that first registered the event. + + :raises ValueError: If the call to ``register`` uses ``unique_id`` + but the value for ``unique_id_uses_count`` differs from the + ``unique_id_uses_count`` value declared by the very first + ``register`` call for that ``unique_id``. + """ + self._events.register( + event_name, + handler, + unique_id, + unique_id_uses_count=unique_id_uses_count, + ) + + def unregister( + self, + event_name, + handler=None, + unique_id=None, + unique_id_uses_count=False, + ): + """Unregister a handler with an event. + + :type event_name: str + :param event_name: The name of the event. + + :type handler: callable + :param handler: The callback to unregister. + + :type unique_id: str + :param unique_id: A unique identifier identifying the callback + to unregister. You can provide either the handler or the + unique_id, you do not have to provide both. + + :param unique_id_uses_count: boolean + :param unique_id_uses_count: Specifies if the event should maintain + a count when a ``unique_id`` is registered and unregisted. The + event can only be completely unregistered once every ``register`` + call using the ``unique_id`` has been matched by an ``unregister`` + call. If the ``unique_id`` is specified, subsequent + ``unregister`` calls must use the same value for + ``unique_id_uses_count`` as the ``register`` call that first + registered the event. + + :raises ValueError: If the call to ``unregister`` uses ``unique_id`` + but the value for ``unique_id_uses_count`` differs from the + ``unique_id_uses_count`` value declared by the very first + ``register`` call for that ``unique_id``. + """ + self._events.unregister( + event_name, + handler=handler, + unique_id=unique_id, + unique_id_uses_count=unique_id_uses_count, + ) + + def emit(self, event_name, **kwargs): + return self._events.emit(event_name, **kwargs) + + def emit_first_non_none_response(self, event_name, **kwargs): + responses = self._events.emit(event_name, **kwargs) + return first_non_none_response(responses) + + def get_component(self, name): + try: + return self._components.get_component(name) + except ValueError: + if name in ['endpoint_resolver', 'exceptions_factory']: + warnings.warn( + f'Fetching the {name} component with the get_component() ' + 'method is deprecated as the component has always been ' + 'considered an internal interface of botocore', + DeprecationWarning, + ) + return self._internal_components.get_component(name) + raise + + def _get_internal_component(self, name): + # While this method may be called by botocore classes outside of the + # Session, this method should **never** be used by a class that lives + # outside of botocore. + return self._internal_components.get_component(name) + + def _register_internal_component(self, name, component): + # While this method may be called by botocore classes outside of the + # Session, this method should **never** be used by a class that lives + # outside of botocore. + return self._internal_components.register_component(name, component) + + def register_component(self, name, component): + self._components.register_component(name, component) + + def lazy_register_component(self, name, component): + self._components.lazy_register_component(name, component) + + @with_current_context() + def create_client( + self, + service_name, + region_name=None, + api_version=None, + use_ssl=True, + verify=None, + endpoint_url=None, + aws_access_key_id=None, + aws_secret_access_key=None, + aws_session_token=None, + config=None, + aws_account_id=None, + ): + """Create a botocore client. + + :type service_name: string + :param service_name: The name of the service for which a client will + be created. You can use the ``Session.get_available_services()`` + method to get a list of all available service names. + + :type region_name: string + :param region_name: The name of the region associated with the client. + A client is associated with a single region. + + :type api_version: string + :param api_version: The API version to use. By default, botocore will + use the latest API version when creating a client. You only need + to specify this parameter if you want to use a previous API version + of the client. + + :type use_ssl: boolean + :param use_ssl: Whether or not to use SSL. By default, SSL is used. + Note that not all services support non-ssl connections. + + :type verify: boolean/string + :param verify: Whether or not to verify SSL certificates. + By default SSL certificates are verified. You can provide the + following values: + + * False - do not validate SSL certificates. SSL will still be + used (unless use_ssl is False), but SSL certificates + will not be verified. + * path/to/cert/bundle.pem - A filename of the CA cert bundle to + uses. You can specify this argument if you want to use a + different CA cert bundle than the one used by botocore. + + :type endpoint_url: string + :param endpoint_url: The complete URL to use for the constructed + client. Normally, botocore will automatically construct the + appropriate URL to use when communicating with a service. You can + specify a complete URL (including the "http/https" scheme) to + override this behavior. If this value is provided, then + ``use_ssl`` is ignored. + + :type aws_access_key_id: string + :param aws_access_key_id: The access key to use when creating + the client. This is entirely optional, and if not provided, + the credentials configured for the session will automatically + be used. You only need to provide this argument if you want + to override the credentials used for this specific client. + + :type aws_secret_access_key: string + :param aws_secret_access_key: The secret key to use when creating + the client. Same semantics as aws_access_key_id above. + + :type aws_session_token: string + :param aws_session_token: The session token to use when creating + the client. Same semantics as aws_access_key_id above. + + :type config: botocore.client.Config + :param config: Advanced client configuration options. If a value + is specified in the client config, its value will take precedence + over environment variables and configuration values, but not over + a value passed explicitly to the method. If a default config + object is set on the session, the config object used when creating + the client will be the result of calling ``merge()`` on the + default config with the config provided to this call. + + :type aws_account_id: string + :param aws_account_id: The account id to use when creating + the client. Same semantics as aws_access_key_id above. + + :rtype: botocore.client.BaseClient + :return: A botocore client instance + + """ + default_client_config = self.get_default_client_config() + # If a config is provided and a default config is set, then + # use the config resulting from merging the two. + if config is not None and default_client_config is not None: + config = default_client_config.merge(config) + # If a config was not provided then use the default + # client config from the session + elif default_client_config is not None: + config = default_client_config + + region_name = self._resolve_region_name(region_name, config) + + # Figure out the verify value base on the various + # configuration options. + if verify is None: + verify = self.get_config_variable('ca_bundle') + + if api_version is None: + api_version = self.get_config_variable('api_versions').get( + service_name, None + ) + + loader = self.get_component('data_loader') + event_emitter = self.get_component('event_emitter') + response_parser_factory = self.get_component('response_parser_factory') + if config is not None and config.signature_version is UNSIGNED: + credentials = None + elif ( + aws_access_key_id is not None and aws_secret_access_key is not None + ): + credentials = botocore.credentials.Credentials( + access_key=aws_access_key_id, + secret_key=aws_secret_access_key, + token=aws_session_token, + account_id=aws_account_id, + ) + elif self._missing_cred_vars(aws_access_key_id, aws_secret_access_key): + raise PartialCredentialsError( + provider='explicit', + cred_var=self._missing_cred_vars( + aws_access_key_id, aws_secret_access_key + ), + ) + else: + if ignored_credentials := self._get_ignored_credentials( + aws_session_token, aws_account_id + ): + logger.debug( + "Ignoring the following credential-related values which were set without " + "an access key id and secret key on the session or client: %s", + ignored_credentials, + ) + credentials = self.get_credentials() + if getattr(credentials, 'method', None) == 'explicit': + register_feature_id('CREDENTIALS_CODE') + auth_token = self.get_auth_token() + endpoint_resolver = self._get_internal_component('endpoint_resolver') + exceptions_factory = self._get_internal_component('exceptions_factory') + config_store = copy.copy(self.get_component('config_store')) + user_agent_creator = self.get_component('user_agent_creator') + # Session configuration values for the user agent string are applied + # just before each client creation because they may have been modified + # at any time between session creation and client creation. + user_agent_creator.set_session_config( + session_user_agent_name=self.user_agent_name, + session_user_agent_version=self.user_agent_version, + session_user_agent_extra=self.user_agent_extra, + ) + defaults_mode = self._resolve_defaults_mode(config, config_store) + if defaults_mode != 'legacy': + smart_defaults_factory = self._get_internal_component( + 'smart_defaults_factory' + ) + smart_defaults_factory.merge_smart_defaults( + config_store, defaults_mode, region_name + ) + + self._add_configured_endpoint_provider( + client_name=service_name, + config_store=config_store, + ) + + user_agent_creator.set_client_features(get_context().features) + + client_creator = botocore.client.ClientCreator( + loader, + endpoint_resolver, + self.user_agent(), + event_emitter, + retryhandler, + translate, + response_parser_factory, + exceptions_factory, + config_store, + user_agent_creator=user_agent_creator, + auth_token_resolver=self.get_auth_token, + ) + client = client_creator.create_client( + service_name=service_name, + region_name=region_name, + is_secure=use_ssl, + endpoint_url=endpoint_url, + verify=verify, + credentials=credentials, + scoped_config=self.get_scoped_config(), + client_config=config, + api_version=api_version, + auth_token=auth_token, + ) + monitor = self._get_internal_component('monitor') + if monitor is not None: + monitor.register(client.meta.events) + self._register_client_plugins(client) + return client + + def _resolve_region_name(self, region_name, config): + # Figure out the user-provided region based on the various + # configuration options. + if region_name is None: + if config and config.region_name is not None: + region_name = config.region_name + else: + region_name = self.get_config_variable('region') + + validate_region_name(region_name) + # For any client that we create in retrieving credentials + # we want to create it using the same region as specified in + # creating this client. It is important to note though that the + # credentials client is only created once per session. So if a new + # client is created with a different region, its credential resolver + # will use the region of the first client. However, that is not an + # issue as of now because the credential resolver uses only STS and + # the credentials returned at regional endpoints are valid across + # all regions in the partition. + self._last_client_region_used = region_name + return region_name + + def _resolve_defaults_mode(self, client_config, config_store): + mode = config_store.get_config_variable('defaults_mode') + + if client_config and client_config.defaults_mode: + mode = client_config.defaults_mode + + default_config_resolver = self._get_internal_component( + 'default_config_resolver' + ) + default_modes = default_config_resolver.get_default_modes() + lmode = mode.lower() + if lmode not in default_modes: + raise InvalidDefaultsMode( + mode=mode, valid_modes=', '.join(default_modes) + ) + + return lmode + + def _add_configured_endpoint_provider(self, client_name, config_store): + chain = ConfiguredEndpointProvider( + full_config=self.full_config, + scoped_config=self.get_scoped_config(), + client_name=client_name, + ) + config_store.set_config_provider( + logical_name='endpoint_url', + provider=chain, + ) + + def _missing_cred_vars(self, access_key, secret_key): + if access_key is not None and secret_key is None: + return 'aws_secret_access_key' + if secret_key is not None and access_key is None: + return 'aws_access_key_id' + return None + + def get_available_partitions(self): + """Lists the available partitions found on disk + + :rtype: list + :return: Returns a list of partition names (e.g., ["aws", "aws-cn"]) + """ + resolver = self._get_internal_component('endpoint_resolver') + return resolver.get_available_partitions() + + def get_partition_for_region(self, region_name): + """Lists the partition name of a particular region. + + :type region_name: string + :param region_name: Name of the region to list partition for (e.g., + us-east-1). + + :rtype: string + :return: Returns the respective partition name (e.g., aws). + """ + resolver = self._get_internal_component('endpoint_resolver') + return resolver.get_partition_for_region(region_name) + + def get_available_regions( + self, service_name, partition_name='aws', allow_non_regional=False + ): + """Lists the region and endpoint names of a particular partition. + + :type service_name: string + :param service_name: Name of a service to list endpoint for (e.g., s3). + This parameter accepts a service name (e.g., "elb") or endpoint + prefix (e.g., "elasticloadbalancing"). + + :type partition_name: string + :param partition_name: Name of the partition to limit endpoints to. + (e.g., aws for the public AWS endpoints, aws-cn for AWS China + endpoints, aws-us-gov for AWS GovCloud (US) Endpoints, etc. + + :type allow_non_regional: bool + :param allow_non_regional: Set to True to include endpoints that are + not regional endpoints (e.g., s3-external-1, + fips-us-gov-west-1, etc). + :return: Returns a list of endpoint names (e.g., ["us-east-1"]). + """ + resolver = self._get_internal_component('endpoint_resolver') + results = [] + try: + service_data = self.get_service_data(service_name) + endpoint_prefix = service_data['metadata'].get( + 'endpointPrefix', service_name + ) + results = resolver.get_available_endpoints( + endpoint_prefix, partition_name, allow_non_regional + ) + except UnknownServiceError: + pass + return results + + def _get_ignored_credentials(self, aws_session_token, aws_account_id): + credential_inputs = [] + if aws_session_token: + credential_inputs.append('aws_session_token') + if aws_account_id: + credential_inputs.append('aws_account_id') + return ', '.join(credential_inputs) if credential_inputs else None + + def _register_client_plugins(self, client): + plugins_list = get_botocore_plugins() + if plugins_list == "DISABLED" or not plugins_list: + return + + client_plugins = {} + for plugin in plugins_list.split(','): + try: + name, module = [part.strip() for part in plugin.split('=')] + client_plugins[name] = module + except ValueError: + logger.warning( + "Invalid plugin format: %s. Expected 'name=module'", plugin + ) + + if client_plugins: + load_client_plugins(client, client_plugins) + + +class ComponentLocator: + """Service locator for session components.""" + + def __init__(self): + self._components = {} + self._deferred = {} + + def get_component(self, name): + if name in self._deferred: + factory = self._deferred[name] + self._components[name] = factory() + # Only delete the component from the deferred dict after + # successfully creating the object from the factory as well as + # injecting the instantiated value into the _components dict. + try: + del self._deferred[name] + except KeyError: + # If we get here, it's likely that get_component was called + # concurrently from multiple threads, and another thread + # already deleted the entry. This means the factory was + # probably called twice, but cleaning up the deferred entry + # should not crash outright. + pass + try: + return self._components[name] + except KeyError: + raise ValueError(f"Unknown component: {name}") + + def register_component(self, name, component): + self._components[name] = component + try: + del self._deferred[name] + except KeyError: + pass + + def lazy_register_component(self, name, no_arg_factory): + self._deferred[name] = no_arg_factory + try: + del self._components[name] + except KeyError: + pass + + +class SessionVarDict(MutableMapping): + def __init__(self, session, session_vars): + self._session = session + self._store = copy.copy(session_vars) + + def __getitem__(self, key): + return self._store[key] + + def __setitem__(self, key, value): + self._store[key] = value + self._update_config_store_from_session_vars(key, value) + + def __delitem__(self, key): + del self._store[key] + + def __iter__(self): + return iter(self._store) + + def __len__(self): + return len(self._store) + + def _update_config_store_from_session_vars( + self, logical_name, config_options + ): + # This is for backwards compatibility. The new preferred way to + # modify configuration logic is to use the component system to get + # the config_store component from the session, and then update + # a key with a custom config provider(s). + # This backwards compatibility method takes the old session_vars + # list of tuples and and transforms that into a set of updates to + # the config_store component. + config_chain_builder = ConfigChainFactory(session=self._session) + config_name, env_vars, default, typecast = config_options + config_store = self._session.get_component('config_store') + config_store.set_config_provider( + logical_name, + config_chain_builder.create_config_chain( + instance_name=logical_name, + env_var_names=env_vars, + config_property_names=config_name, + default=default, + conversion_func=typecast, + ), + ) + + +class SubsetChainConfigFactory: + """A class for creating backwards compatible configuration chains. + + This class can be used instead of + :class:`botocore.configprovider.ConfigChainFactory` to make it honor the + methods argument to get_config_variable. This class can be used to filter + out providers that are not in the methods tuple when creating a new config + chain. + """ + + def __init__(self, session, methods, environ=None): + self._factory = ConfigChainFactory(session, environ) + self._supported_methods = methods + + def create_config_chain( + self, + instance_name=None, + env_var_names=None, + config_property_name=None, + default=None, + conversion_func=None, + ): + """Build a config chain following the standard botocore pattern. + + This config chain factory will omit any providers not in the methods + tuple provided at initialization. For example if given the tuple + ('instance', 'config',) it will not inject the environment provider + into the standard config chain. This lets the botocore session support + the custom ``methods`` argument for all the default botocore config + variables when calling ``get_config_variable``. + """ + if 'instance' not in self._supported_methods: + instance_name = None + if 'env' not in self._supported_methods: + env_var_names = None + if 'config' not in self._supported_methods: + config_property_name = None + return self._factory.create_config_chain( + instance_name=instance_name, + env_var_names=env_var_names, + config_property_names=config_property_name, + default=default, + conversion_func=conversion_func, + ) + + +def get_session(env_vars=None): + """ + Return a new session object. + """ + return Session(env_vars) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/signers.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/signers.py new file mode 100644 index 0000000000000000000000000000000000000000..1002d475246e15bbd022a0f9f6d082ea0fed71fc --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/signers.py @@ -0,0 +1,996 @@ +# Copyright 2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import base64 +import datetime +import json +import weakref + +import botocore +import botocore.auth +from botocore.awsrequest import create_request_object, prepare_request_dict +from botocore.compat import OrderedDict, get_current_datetime +from botocore.exceptions import ( + ParamValidationError, + UnknownClientMethodError, + UnknownSignatureVersionError, + UnsupportedSignatureVersionError, +) +from botocore.tokens import FrozenAuthToken +from botocore.utils import ( + ArnParser, + datetime2timestamp, + fix_s3_host, # noqa: F401 +) + + +class RequestSigner: + """ + An object to sign requests before they go out over the wire using + one of the authentication mechanisms defined in ``auth.py``. This + class fires two events scoped to a service and operation name: + + * choose-signer: Allows overriding the auth signer name. + * before-sign: Allows mutating the request before signing. + + Together these events allow for customization of the request + signing pipeline, including overrides, request path manipulation, + and disabling signing per operation. + + + :type service_id: botocore.model.ServiceId + :param service_id: The service id for the service, e.g. ``S3`` + + :type region_name: string + :param region_name: Name of the service region, e.g. ``us-east-1`` + + :type signing_name: string + :param signing_name: Service signing name. This is usually the + same as the service name, but can differ. E.g. + ``emr`` vs. ``elasticmapreduce``. + + :type signature_version: string + :param signature_version: Signature name like ``v4``. + + :type credentials: :py:class:`~botocore.credentials.Credentials` + :param credentials: User credentials with which to sign requests. + + :type event_emitter: :py:class:`~botocore.hooks.BaseEventHooks` + :param event_emitter: Extension mechanism to fire events. + """ + + def __init__( + self, + service_id, + region_name, + signing_name, + signature_version, + credentials, + event_emitter, + auth_token=None, + ): + self._region_name = region_name + self._signing_name = signing_name + self._signature_version = signature_version + self._credentials = credentials + self._auth_token = auth_token + self._service_id = service_id + + # We need weakref to prevent leaking memory in Python 2.6 on Linux 2.6 + self._event_emitter = weakref.proxy(event_emitter) + + @property + def region_name(self): + return self._region_name + + @property + def signature_version(self): + return self._signature_version + + @property + def signing_name(self): + return self._signing_name + + def handler(self, operation_name=None, request=None, **kwargs): + # This is typically hooked up to the "request-created" event + # from a client's event emitter. When a new request is created + # this method is invoked to sign the request. + # Don't call this method directly. + return self.sign(operation_name, request) + + def sign( + self, + operation_name, + request, + region_name=None, + signing_type='standard', + expires_in=None, + signing_name=None, + ): + """Sign a request before it goes out over the wire. + + :type operation_name: string + :param operation_name: The name of the current operation, e.g. + ``ListBuckets``. + :type request: AWSRequest + :param request: The request object to be sent over the wire. + + :type region_name: str + :param region_name: The region to sign the request for. + + :type signing_type: str + :param signing_type: The type of signing to perform. This can be one of + three possible values: + + * 'standard' - This should be used for most requests. + * 'presign-url' - This should be used when pre-signing a request. + * 'presign-post' - This should be used when pre-signing an S3 post. + + :type expires_in: int + :param expires_in: The number of seconds the presigned url is valid + for. This parameter is only valid for signing type 'presign-url'. + + :type signing_name: str + :param signing_name: The name to use for the service when signing. + """ + explicit_region_name = region_name + if region_name is None: + region_name = self._region_name + + if signing_name is None: + signing_name = self._signing_name + + signature_version = self._choose_signer( + operation_name, signing_type, request.context + ) + + # Allow mutating request before signing + self._event_emitter.emit( + f'before-sign.{self._service_id.hyphenize()}.{operation_name}', + request=request, + signing_name=signing_name, + region_name=self._region_name, + signature_version=signature_version, + request_signer=self, + operation_name=operation_name, + ) + + if signature_version != botocore.UNSIGNED: + kwargs = { + 'signing_name': signing_name, + 'region_name': region_name, + 'signature_version': signature_version, + } + if expires_in is not None: + kwargs['expires'] = expires_in + signing_context = request.context.get('signing', {}) + if not explicit_region_name and signing_context.get('region'): + kwargs['region_name'] = signing_context['region'] + if signing_context.get('signing_name'): + kwargs['signing_name'] = signing_context['signing_name'] + if signing_context.get('request_credentials'): + kwargs['request_credentials'] = signing_context[ + 'request_credentials' + ] + if signing_context.get('identity_cache') is not None: + self._resolve_identity_cache( + kwargs, + signing_context['identity_cache'], + signing_context['cache_key'], + ) + try: + auth = self.get_auth_instance(**kwargs) + except UnknownSignatureVersionError as e: + if signing_type != 'standard': + raise UnsupportedSignatureVersionError( + signature_version=signature_version + ) + else: + raise e + + auth.add_auth(request) + + def _resolve_identity_cache(self, kwargs, cache, cache_key): + kwargs['identity_cache'] = cache + kwargs['cache_key'] = cache_key + + def _choose_signer(self, operation_name, signing_type, context): + """ + Allow setting the signature version via the choose-signer event. + A value of `botocore.UNSIGNED` means no signing will be performed. + + :param operation_name: The operation to sign. + :param signing_type: The type of signing that the signer is to be used + for. + :return: The signature version to sign with. + """ + signing_type_suffix_map = { + 'presign-post': '-presign-post', + 'presign-url': '-query', + } + suffix = signing_type_suffix_map.get(signing_type, '') + + # operation specific signing context takes precedent over client-level + # defaults + signature_version = context.get('auth_type') or self._signature_version + signing = context.get('signing', {}) + signing_name = signing.get('signing_name', self._signing_name) + region_name = signing.get('region', self._region_name) + if ( + signature_version is not botocore.UNSIGNED + and not signature_version.endswith(suffix) + ): + signature_version += suffix + + handler, response = self._event_emitter.emit_until_response( + f'choose-signer.{self._service_id.hyphenize()}.{operation_name}', + signing_name=signing_name, + region_name=region_name, + signature_version=signature_version, + context=context, + ) + + if response is not None: + signature_version = response + # The suffix needs to be checked again in case we get an improper + # signature version from choose-signer. + if ( + signature_version is not botocore.UNSIGNED + and not signature_version.endswith(suffix) + ): + signature_version += suffix + + return signature_version + + def get_auth_instance( + self, + signing_name, + region_name, + signature_version=None, + request_credentials=None, + **kwargs, + ): + """ + Get an auth instance which can be used to sign a request + using the given signature version. + + :type signing_name: string + :param signing_name: Service signing name. This is usually the + same as the service name, but can differ. E.g. + ``emr`` vs. ``elasticmapreduce``. + + :type region_name: string + :param region_name: Name of the service region, e.g. ``us-east-1`` + + :type signature_version: string + :param signature_version: Signature name like ``v4``. + + :rtype: :py:class:`~botocore.auth.BaseSigner` + :return: Auth instance to sign a request. + """ + if signature_version is None: + signature_version = self._signature_version + + cls = botocore.auth.AUTH_TYPE_MAPS.get(signature_version) + if cls is None: + raise UnknownSignatureVersionError( + signature_version=signature_version + ) + + if cls.REQUIRES_TOKEN is True: + if self._auth_token and not isinstance( + self._auth_token, FrozenAuthToken + ): + frozen_token = self._auth_token.get_frozen_token() + else: + frozen_token = self._auth_token + auth = cls(frozen_token) + return auth + + credentials = request_credentials or self._credentials + if getattr(cls, "REQUIRES_IDENTITY_CACHE", None) is True: + cache = kwargs["identity_cache"] + key = kwargs["cache_key"] + credentials = cache.get_credentials(key) + del kwargs["cache_key"] + + # If there's no credentials provided (i.e credentials is None), + # then we'll pass a value of "None" over to the auth classes, + # which already handle the cases where no credentials have + # been provided. + frozen_credentials = None + if credentials is not None: + frozen_credentials = credentials.get_frozen_credentials() + kwargs['credentials'] = frozen_credentials + if cls.REQUIRES_REGION: + if self._region_name is None: + raise botocore.exceptions.NoRegionError() + kwargs['region_name'] = region_name + kwargs['service_name'] = signing_name + auth = cls(**kwargs) + return auth + + # Alias get_auth for backwards compatibility. + get_auth = get_auth_instance + + def generate_presigned_url( + self, + request_dict, + operation_name, + expires_in=3600, + region_name=None, + signing_name=None, + ): + """Generates a presigned url + + :type request_dict: dict + :param request_dict: The prepared request dictionary returned by + ``botocore.awsrequest.prepare_request_dict()`` + + :type operation_name: str + :param operation_name: The operation being signed. + + :type expires_in: int + :param expires_in: The number of seconds the presigned url is valid + for. By default it expires in an hour (3600 seconds) + + :type region_name: string + :param region_name: The region name to sign the presigned url. + + :type signing_name: str + :param signing_name: The name to use for the service when signing. + + :returns: The presigned url + """ + request = create_request_object(request_dict) + self.sign( + operation_name, + request, + region_name, + 'presign-url', + expires_in, + signing_name, + ) + + request.prepare() + return request.url + + +class CloudFrontSigner: + '''A signer to create a signed CloudFront URL. + + First you create a cloudfront signer based on a normalized RSA signer:: + + import rsa + def rsa_signer(message): + private_key = open('private_key.pem', 'r').read() + return rsa.sign( + message, + rsa.PrivateKey.load_pkcs1(private_key.encode('utf8')), + 'SHA-1') # CloudFront requires SHA-1 hash + cf_signer = CloudFrontSigner(key_id, rsa_signer) + + To sign with a canned policy:: + + signed_url = cf_signer.generate_signed_url( + url, date_less_than=datetime(2015, 12, 1)) + + To sign with a custom policy:: + + signed_url = cf_signer.generate_signed_url(url, policy=my_policy) + ''' + + def __init__(self, key_id, rsa_signer): + """Create a CloudFrontSigner. + + :type key_id: str + :param key_id: The CloudFront Key Pair ID + + :type rsa_signer: callable + :param rsa_signer: An RSA signer. + Its only input parameter will be the message to be signed, + and its output will be the signed content as a binary string. + The hash algorithm needed by CloudFront is SHA-1. + """ + self.key_id = key_id + self.rsa_signer = rsa_signer + + def generate_presigned_url(self, url, date_less_than=None, policy=None): + """Creates a signed CloudFront URL based on given parameters. + + :type url: str + :param url: The URL of the protected object + + :type date_less_than: datetime + :param date_less_than: The URL will expire after that date and time + + :type policy: str + :param policy: The custom policy, possibly built by self.build_policy() + + :rtype: str + :return: The signed URL. + """ + both_args_supplied = date_less_than is not None and policy is not None + neither_arg_supplied = date_less_than is None and policy is None + if both_args_supplied or neither_arg_supplied: + e = 'Need to provide either date_less_than or policy, but not both' + raise ValueError(e) + if date_less_than is not None: + # We still need to build a canned policy for signing purpose + policy = self.build_policy(url, date_less_than) + if isinstance(policy, str): + policy = policy.encode('utf8') + if date_less_than is not None: + params = [f'Expires={int(datetime2timestamp(date_less_than))}'] + else: + params = [f"Policy={self._url_b64encode(policy).decode('utf8')}"] + signature = self.rsa_signer(policy) + params.extend( + [ + f"Signature={self._url_b64encode(signature).decode('utf8')}", + f"Key-Pair-Id={self.key_id}", + ] + ) + return self._build_url(url, params) + + def _build_url(self, base_url, extra_params): + separator = '&' if '?' in base_url else '?' + return base_url + separator + '&'.join(extra_params) + + def build_policy( + self, resource, date_less_than, date_greater_than=None, ip_address=None + ): + """A helper to build policy. + + :type resource: str + :param resource: The URL or the stream filename of the protected object + + :type date_less_than: datetime + :param date_less_than: The URL will expire after the time has passed + + :type date_greater_than: datetime + :param date_greater_than: The URL will not be valid until this time + + :type ip_address: str + :param ip_address: Use 'x.x.x.x' for an IP, or 'x.x.x.x/x' for a subnet + + :rtype: str + :return: The policy in a compact string. + """ + # Note: + # 1. Order in canned policy is significant. Special care has been taken + # to ensure the output will match the order defined by the document. + # There is also a test case to ensure that order. + # SEE: http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/private-content-creating-signed-url-canned-policy.html#private-content-canned-policy-creating-policy-statement + # 2. Albeit the order in custom policy is not required by CloudFront, + # we still use OrderedDict internally to ensure the result is stable + # and also matches canned policy requirement. + # SEE: http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/private-content-creating-signed-url-custom-policy.html + moment = int(datetime2timestamp(date_less_than)) + condition = OrderedDict({"DateLessThan": {"AWS:EpochTime": moment}}) + if ip_address: + if '/' not in ip_address: + ip_address += '/32' + condition["IpAddress"] = {"AWS:SourceIp": ip_address} + if date_greater_than: + moment = int(datetime2timestamp(date_greater_than)) + condition["DateGreaterThan"] = {"AWS:EpochTime": moment} + ordered_payload = [('Resource', resource), ('Condition', condition)] + custom_policy = {"Statement": [OrderedDict(ordered_payload)]} + return json.dumps(custom_policy, separators=(',', ':')) + + def _url_b64encode(self, data): + # Required by CloudFront. See also: + # http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/private-content-linux-openssl.html + return ( + base64.b64encode(data) + .replace(b'+', b'-') + .replace(b'=', b'_') + .replace(b'/', b'~') + ) + + +def add_generate_db_auth_token(class_attributes, **kwargs): + class_attributes['generate_db_auth_token'] = generate_db_auth_token + + +def add_dsql_generate_db_auth_token_methods(class_attributes, **kwargs): + class_attributes['generate_db_connect_auth_token'] = ( + dsql_generate_db_connect_auth_token + ) + class_attributes['generate_db_connect_admin_auth_token'] = ( + dsql_generate_db_connect_admin_auth_token + ) + + +def generate_db_auth_token(self, DBHostname, Port, DBUsername, Region=None): + """Generates an auth token used to connect to a db with IAM credentials. + + :type DBHostname: str + :param DBHostname: The hostname of the database to connect to. + + :type Port: int + :param Port: The port number the database is listening on. + + :type DBUsername: str + :param DBUsername: The username to log in as. + + :type Region: str + :param Region: The region the database is in. If None, the client + region will be used. + + :return: A presigned url which can be used as an auth token. + """ + region = Region + if region is None: + region = self.meta.region_name + + params = { + 'Action': 'connect', + 'DBUser': DBUsername, + } + + request_dict = { + 'url_path': '/', + 'query_string': '', + 'headers': {}, + 'body': params, + 'method': 'GET', + } + + # RDS requires that the scheme not be set when sent over. This can cause + # issues when signing because the Python url parsing libraries follow + # RFC 1808 closely, which states that a netloc must be introduced by `//`. + # Otherwise the url is presumed to be relative, and thus the whole + # netloc would be treated as a path component. To work around this we + # introduce https here and remove it once we're done processing it. + scheme = 'https://' + endpoint_url = f'{scheme}{DBHostname}:{Port}' + prepare_request_dict(request_dict, endpoint_url) + presigned_url = self._request_signer.generate_presigned_url( + operation_name='connect', + request_dict=request_dict, + region_name=region, + expires_in=900, + signing_name='rds-db', + ) + return presigned_url[len(scheme) :] + + +def _dsql_generate_db_auth_token( + self, Hostname, Action, Region=None, ExpiresIn=900 +): + """Generate a DSQL database token for an arbitrary action. + + :type Hostname: str + :param Hostname: The DSQL endpoint host name. + + :type Action: str + :param Action: Action to perform on the cluster (DbConnectAdmin or DbConnect). + + :type Region: str + :param Region: The AWS region where the DSQL Cluster is hosted. If None, the client region will be used. + + :type ExpiresIn: int + :param ExpiresIn: The token expiry duration in seconds (default is 900 seconds). + + :return: A presigned url which can be used as an auth token. + """ + possible_actions = ("DbConnect", "DbConnectAdmin") + + if Action not in possible_actions: + raise ParamValidationError( + report=f"Received {Action} for action but expected one of: {', '.join(possible_actions)}" + ) + + if Region is None: + Region = self.meta.region_name + + request_dict = { + 'url_path': '/', + 'query_string': '', + 'headers': {}, + 'body': { + 'Action': Action, + }, + 'method': 'GET', + } + scheme = 'https://' + endpoint_url = f'{scheme}{Hostname}' + prepare_request_dict(request_dict, endpoint_url) + presigned_url = self._request_signer.generate_presigned_url( + operation_name=Action, + request_dict=request_dict, + region_name=Region, + expires_in=ExpiresIn, + signing_name='dsql', + ) + return presigned_url[len(scheme) :] + + +def dsql_generate_db_connect_auth_token( + self, Hostname, Region=None, ExpiresIn=900 +): + """Generate a DSQL database token for the "DbConnect" action. + + :type Hostname: str + :param Hostname: The DSQL endpoint host name. + + :type Region: str + :param Region: The AWS region where the DSQL Cluster is hosted. If None, the client region will be used. + + :type ExpiresIn: int + :param ExpiresIn: The token expiry duration in seconds (default is 900 seconds). + + :return: A presigned url which can be used as an auth token. + """ + return _dsql_generate_db_auth_token( + self, Hostname, "DbConnect", Region, ExpiresIn + ) + + +def dsql_generate_db_connect_admin_auth_token( + self, Hostname, Region=None, ExpiresIn=900 +): + """Generate a DSQL database token for the "DbConnectAdmin" action. + + :type Hostname: str + :param Hostname: The DSQL endpoint host name. + + :type Region: str + :param Region: The AWS region where the DSQL Cluster is hosted. If None, the client region will be used. + + :type ExpiresIn: int + :param ExpiresIn: The token expiry duration in seconds (default is 900 seconds). + + :return: A presigned url which can be used as an auth token. + """ + return _dsql_generate_db_auth_token( + self, Hostname, "DbConnectAdmin", Region, ExpiresIn + ) + + +class S3PostPresigner: + def __init__(self, request_signer): + self._request_signer = request_signer + + def generate_presigned_post( + self, + request_dict, + fields=None, + conditions=None, + expires_in=3600, + region_name=None, + ): + """Generates the url and the form fields used for a presigned s3 post + + :type request_dict: dict + :param request_dict: The prepared request dictionary returned by + ``botocore.awsrequest.prepare_request_dict()`` + + :type fields: dict + :param fields: A dictionary of prefilled form fields to build on top + of. + + :type conditions: list + :param conditions: A list of conditions to include in the policy. Each + element can be either a list or a structure. For example: + + .. code:: python + + [ + {"acl": "public-read"}, + {"bucket": "amzn-s3-demo-bucket"}, + ["starts-with", "$key", "mykey"] + ] + + :type expires_in: int + :param expires_in: The number of seconds the presigned post is valid + for. + + :type region_name: string + :param region_name: The region name to sign the presigned post to. + + :rtype: dict + :returns: A dictionary with two elements: ``url`` and ``fields``. + Url is the url to post to. Fields is a dictionary filled with + the form fields and respective values to use when submitting the + post. For example: + + .. code:: python + + { + 'url': 'https://amzn-s3-demo-bucket.s3.amazonaws.com', + 'fields': { + 'acl': 'public-read', + 'key': 'mykey', + 'signature': 'mysignature', + 'policy': 'mybase64 encoded policy' + } + } + """ + if fields is None: + fields = {} + + if conditions is None: + conditions = [] + + # Create the policy for the post. + policy = {} + + # Create an expiration date for the policy + datetime_now = get_current_datetime() + expire_date = datetime_now + datetime.timedelta(seconds=expires_in) + policy['expiration'] = expire_date.strftime(botocore.auth.ISO8601) + + # Append all of the conditions that the user supplied. + policy['conditions'] = [] + for condition in conditions: + policy['conditions'].append(condition) + + # Store the policy and the fields in the request for signing + request = create_request_object(request_dict) + request.context['s3-presign-post-fields'] = fields + request.context['s3-presign-post-policy'] = policy + + self._request_signer.sign( + 'PutObject', request, region_name, 'presign-post' + ) + # Return the url and the fields for th form to post. + return {'url': request.url, 'fields': fields} + + +def add_generate_presigned_url(class_attributes, **kwargs): + class_attributes['generate_presigned_url'] = generate_presigned_url + + +def generate_presigned_url( + self, ClientMethod, Params=None, ExpiresIn=3600, HttpMethod=None +): + """Generate a presigned url given a client, its method, and arguments + + :type ClientMethod: string + :param ClientMethod: The client method to presign for + + :type Params: dict + :param Params: The parameters normally passed to + ``ClientMethod``. + + :type ExpiresIn: int + :param ExpiresIn: The number of seconds the presigned url is valid + for. By default it expires in an hour (3600 seconds) + + :type HttpMethod: string + :param HttpMethod: The http method to use on the generated url. By + default, the http method is whatever is used in the method's model. + + :returns: The presigned url + """ + client_method = ClientMethod + params = Params + if params is None: + params = {} + expires_in = ExpiresIn + http_method = HttpMethod + context = { + 'is_presign_request': True, + 'use_global_endpoint': _should_use_global_endpoint(self), + } + + request_signer = self._request_signer + + try: + operation_name = self._PY_TO_OP_NAME[client_method] + except KeyError: + raise UnknownClientMethodError(method_name=client_method) + + operation_model = self.meta.service_model.operation_model(operation_name) + params = self._emit_api_params( + api_params=params, + operation_model=operation_model, + context=context, + ) + bucket_is_arn = ArnParser.is_arn(params.get('Bucket', '')) + ( + endpoint_url, + additional_headers, + properties, + ) = self._resolve_endpoint_ruleset( + operation_model, + params, + context, + ignore_signing_region=(not bucket_is_arn), + ) + + request_dict = self._convert_to_request_dict( + api_params=params, + operation_model=operation_model, + endpoint_url=endpoint_url, + context=context, + headers=additional_headers, + set_user_agent_header=False, + ) + + # Switch out the http method if user specified it. + if http_method is not None: + request_dict['method'] = http_method + + # Generate the presigned url. + return request_signer.generate_presigned_url( + request_dict=request_dict, + expires_in=expires_in, + operation_name=operation_name, + ) + + +def add_generate_presigned_post(class_attributes, **kwargs): + class_attributes['generate_presigned_post'] = generate_presigned_post + + +def generate_presigned_post( + self, Bucket, Key, Fields=None, Conditions=None, ExpiresIn=3600 +): + """Builds the url and the form fields used for a presigned s3 post + + :type Bucket: string + :param Bucket: The name of the bucket to presign the post to. Note that + bucket related conditions should not be included in the + ``conditions`` parameter. + + :type Key: string + :param Key: Key name, optionally add ${filename} to the end to + attach the submitted filename. Note that key related conditions and + fields are filled out for you and should not be included in the + ``Fields`` or ``Conditions`` parameter. + + :type Fields: dict + :param Fields: A dictionary of prefilled form fields to build on top + of. Elements that may be included are acl, Cache-Control, + Content-Type, Content-Disposition, Content-Encoding, Expires, + success_action_redirect, redirect, success_action_status, + and x-amz-meta-. + + Note that if a particular element is included in the fields + dictionary it will not be automatically added to the conditions + list. You must specify a condition for the element as well. + + :type Conditions: list + :param Conditions: A list of conditions to include in the policy. Each + element can be either a list or a structure. For example: + + .. code:: python + + [ + {"acl": "public-read"}, + ["content-length-range", 2, 5], + ["starts-with", "$success_action_redirect", ""] + ] + + Conditions that are included may pertain to acl, + content-length-range, Cache-Control, Content-Type, + Content-Disposition, Content-Encoding, Expires, + success_action_redirect, redirect, success_action_status, + and/or x-amz-meta-. + + Note that if you include a condition, you must specify + a valid value in the fields dictionary as well. A value will + not be added automatically to the fields dictionary based on the + conditions. + + :type ExpiresIn: int + :param ExpiresIn: The number of seconds the presigned post + is valid for. + + :rtype: dict + :returns: A dictionary with two elements: ``url`` and ``fields``. + Url is the url to post to. Fields is a dictionary filled with + the form fields and respective values to use when submitting the + post. For example: + + .. code:: python + + { + 'url': 'https://amzn-s3-demo-bucket.s3.amazonaws.com', + 'fields': { + 'acl': 'public-read', + 'key': 'mykey', + 'signature': 'mysignature', + 'policy': 'mybase64 encoded policy' + } + } + """ + bucket = Bucket + key = Key + fields = Fields + conditions = Conditions + expires_in = ExpiresIn + + if fields is None: + fields = {} + else: + fields = fields.copy() + + if conditions is None: + conditions = [] + + context = { + 'is_presign_request': True, + 'use_global_endpoint': _should_use_global_endpoint(self), + } + + post_presigner = S3PostPresigner(self._request_signer) + + # We choose the CreateBucket operation model because its url gets + # serialized to what a presign post requires. + operation_model = self.meta.service_model.operation_model('CreateBucket') + params = self._emit_api_params( + api_params={'Bucket': bucket}, + operation_model=operation_model, + context=context, + ) + bucket_is_arn = ArnParser.is_arn(params.get('Bucket', '')) + ( + endpoint_url, + additional_headers, + properties, + ) = self._resolve_endpoint_ruleset( + operation_model, + params, + context, + ignore_signing_region=(not bucket_is_arn), + ) + + request_dict = self._convert_to_request_dict( + api_params=params, + operation_model=operation_model, + endpoint_url=endpoint_url, + context=context, + headers=additional_headers, + set_user_agent_header=False, + ) + + # Append that the bucket name to the list of conditions. + conditions.append({'bucket': bucket}) + + # If the key ends with filename, the only constraint that can be + # imposed is if it starts with the specified prefix. + if key.endswith('${filename}'): + conditions.append(["starts-with", '$key', key[: -len('${filename}')]]) + else: + conditions.append({'key': key}) + + # Add the key to the fields. + fields['key'] = key + + return post_presigner.generate_presigned_post( + request_dict=request_dict, + fields=fields, + conditions=conditions, + expires_in=expires_in, + ) + + +def _should_use_global_endpoint(client): + if client.meta.partition != 'aws': + return False + s3_config = client.meta.config.s3 + if s3_config: + if s3_config.get('use_dualstack_endpoint', False): + return False + if ( + s3_config.get('us_east_1_regional_endpoint') == 'regional' + and client.meta.config.region_name == 'us-east-1' + ): + return False + if s3_config.get('addressing_style') == 'virtual': + return False + return True diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/stub.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/stub.py new file mode 100644 index 0000000000000000000000000000000000000000..d85294a7f448fedd1aeb37b8f7dcb7ec38f33f9e --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/stub.py @@ -0,0 +1,452 @@ +# Copyright 2016 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import copy +from collections import deque +from pprint import pformat + +from botocore.awsrequest import AWSResponse +from botocore.exceptions import ( + ParamValidationError, + StubAssertionError, + StubResponseError, + UnStubbedResponseError, +) +from botocore.validate import validate_parameters + + +class _ANY: + """ + A helper object that compares equal to everything. Copied from + unittest.mock + """ + + def __eq__(self, other): + return True + + def __ne__(self, other): + return False + + def __repr__(self): + return '' + + +ANY = _ANY() + + +class Stubber: + """ + This class will allow you to stub out requests so you don't have to hit + an endpoint to write tests. Responses are returned first in, first out. + If operations are called out of order, or are called with no remaining + queued responses, an error will be raised. + + **Example:** + :: + import datetime + import botocore.session + from botocore.stub import Stubber + + + s3 = botocore.session.get_session().create_client('s3') + stubber = Stubber(s3) + + response = { + 'IsTruncated': False, + 'Name': 'test-bucket', + 'MaxKeys': 1000, 'Prefix': '', + 'Contents': [{ + 'Key': 'test.txt', + 'ETag': '"abc123"', + 'StorageClass': 'STANDARD', + 'LastModified': datetime.datetime(2016, 1, 20, 22, 9), + 'Owner': {'ID': 'abc123', 'DisplayName': 'myname'}, + 'Size': 14814 + }], + 'EncodingType': 'url', + 'ResponseMetadata': { + 'RequestId': 'abc123', + 'HTTPStatusCode': 200, + 'HostId': 'abc123' + }, + 'Marker': '' + } + + expected_params = {'Bucket': 'test-bucket'} + + stubber.add_response('list_objects', response, expected_params) + stubber.activate() + + service_response = s3.list_objects(Bucket='test-bucket') + assert service_response == response + + + This class can also be called as a context manager, which will handle + activation / deactivation for you. + + **Example:** + :: + import datetime + import botocore.session + from botocore.stub import Stubber + + + s3 = botocore.session.get_session().create_client('s3') + + response = { + "Owner": { + "ID": "foo", + "DisplayName": "bar" + }, + "Buckets": [{ + "CreationDate": datetime.datetime(2016, 1, 20, 22, 9), + "Name": "baz" + }] + } + + + with Stubber(s3) as stubber: + stubber.add_response('list_buckets', response, {}) + service_response = s3.list_buckets() + + assert service_response == response + + + If you have an input parameter that is a randomly generated value, or you + otherwise don't care about its value, you can use ``stub.ANY`` to ignore + it in validation. + + **Example:** + :: + import datetime + import botocore.session + from botocore.stub import Stubber, ANY + + + s3 = botocore.session.get_session().create_client('s3') + stubber = Stubber(s3) + + response = { + 'IsTruncated': False, + 'Name': 'test-bucket', + 'MaxKeys': 1000, 'Prefix': '', + 'Contents': [{ + 'Key': 'test.txt', + 'ETag': '"abc123"', + 'StorageClass': 'STANDARD', + 'LastModified': datetime.datetime(2016, 1, 20, 22, 9), + 'Owner': {'ID': 'abc123', 'DisplayName': 'myname'}, + 'Size': 14814 + }], + 'EncodingType': 'url', + 'ResponseMetadata': { + 'RequestId': 'abc123', + 'HTTPStatusCode': 200, + 'HostId': 'abc123' + }, + 'Marker': '' + } + + expected_params = {'Bucket': ANY} + stubber.add_response('list_objects', response, expected_params) + + with stubber: + service_response = s3.list_objects(Bucket='test-bucket') + + assert service_response == response + """ + + def __init__(self, client): + """ + :param client: The client to add your stubs to. + """ + self.client = client + self._event_id = 'boto_stubber' + self._expected_params_event_id = 'boto_stubber_expected_params' + self._stub_account_id_event_id = 'boto_stubber_stub_account_id' + self._queue = deque() + + def __enter__(self): + self.activate() + return self + + def __exit__(self, exception_type, exception_value, traceback): + self.deactivate() + + def activate(self): + """ + Activates the stubber on the client + """ + self.client.meta.events.register_first( + 'before-parameter-build.*.*', + self._assert_expected_params, + unique_id=self._expected_params_event_id, + ) + self.client.meta.events.register( + 'before-call.*.*', + self._get_response_handler, + unique_id=self._event_id, + ) + self.client.meta.events.register( + 'before-endpoint-resolution.*', + self._set_account_id_for_endpoint_resolution, + unique_id=self._stub_account_id_event_id, + ) + + def deactivate(self): + """ + Deactivates the stubber on the client + """ + self.client.meta.events.unregister( + 'before-parameter-build.*.*', + self._assert_expected_params, + unique_id=self._expected_params_event_id, + ) + self.client.meta.events.unregister( + 'before-call.*.*', + self._get_response_handler, + unique_id=self._event_id, + ) + self.client.meta.events.unregister( + 'before-endpoint-resolution.*', + self._stub_account_id_event_id, + unique_id=self._stub_account_id_event_id, + ) + + def add_response(self, method, service_response, expected_params=None): + """ + Adds a service response to the response queue. This will be validated + against the service model to ensure correctness. It should be noted, + however, that while missing attributes are often considered correct, + your code may not function properly if you leave them out. Therefore + you should always fill in every value you see in a typical response for + your particular request. + + :param method: The name of the client method to stub. + :type method: str + + :param service_response: A dict response stub. Provided parameters will + be validated against the service model. + :type service_response: dict + + :param expected_params: A dictionary of the expected parameters to + be called for the provided service response. The parameters match + the names of keyword arguments passed to that client call. If + any of the parameters differ a ``StubResponseError`` is thrown. + You can use stub.ANY to indicate a particular parameter to ignore + in validation. stub.ANY is only valid for top level params. + """ + self._add_response(method, service_response, expected_params) + + def _add_response(self, method, service_response, expected_params): + if not hasattr(self.client, method): + raise ValueError( + f"Client {self.client.meta.service_model.service_name} " + f"does not have method: {method}" + ) + + # Create a successful http response + http_response = AWSResponse(None, 200, {}, None) + + operation_name = self.client.meta.method_to_api_mapping.get(method) + self._validate_operation_response(operation_name, service_response) + + # Add the service_response to the queue for returning responses + response = { + 'operation_name': operation_name, + 'response': (http_response, service_response), + 'expected_params': expected_params, + } + self._queue.append(response) + + def add_client_error( + self, + method, + service_error_code='', + service_message='', + http_status_code=400, + service_error_meta=None, + expected_params=None, + response_meta=None, + modeled_fields=None, + ): + """ + Adds a ``ClientError`` to the response queue. + + :param method: The name of the service method to return the error on. + :type method: str + + :param service_error_code: The service error code to return, + e.g. ``NoSuchBucket`` + :type service_error_code: str + + :param service_message: The service message to return, e.g. + 'The specified bucket does not exist.' + :type service_message: str + + :param http_status_code: The HTTP status code to return, e.g. 404, etc + :type http_status_code: int + + :param service_error_meta: Additional keys to be added to the + service Error + :type service_error_meta: dict + + :param expected_params: A dictionary of the expected parameters to + be called for the provided service response. The parameters match + the names of keyword arguments passed to that client call. If + any of the parameters differ a ``StubResponseError`` is thrown. + You can use stub.ANY to indicate a particular parameter to ignore + in validation. + + :param response_meta: Additional keys to be added to the + response's ResponseMetadata + :type response_meta: dict + + :param modeled_fields: Additional keys to be added to the response + based on fields that are modeled for the particular error code. + These keys will be validated against the particular error shape + designated by the error code. + :type modeled_fields: dict + + """ + http_response = AWSResponse(None, http_status_code, {}, None) + + # We don't look to the model to build this because the caller would + # need to know the details of what the HTTP body would need to + # look like. + parsed_response = { + 'ResponseMetadata': {'HTTPStatusCode': http_status_code}, + 'Error': {'Message': service_message, 'Code': service_error_code}, + } + + if service_error_meta is not None: + parsed_response['Error'].update(service_error_meta) + + if response_meta is not None: + parsed_response['ResponseMetadata'].update(response_meta) + + if modeled_fields is not None: + service_model = self.client.meta.service_model + shape = service_model.shape_for_error_code(service_error_code) + self._validate_response(shape, modeled_fields) + parsed_response.update(modeled_fields) + + operation_name = self.client.meta.method_to_api_mapping.get(method) + # Note that we do not allow for expected_params while + # adding errors into the queue yet. + response = { + 'operation_name': operation_name, + 'response': (http_response, parsed_response), + 'expected_params': expected_params, + } + self._queue.append(response) + + def assert_no_pending_responses(self): + """ + Asserts that all expected calls were made. + """ + remaining = len(self._queue) + if remaining != 0: + raise AssertionError(f"{remaining} responses remaining in queue.") + + def _assert_expected_call_order(self, model, params): + if not self._queue: + raise UnStubbedResponseError( + operation_name=model.name, + reason=( + 'Unexpected API Call: A call was made but no additional ' + 'calls expected. Either the API Call was not stubbed or ' + 'it was called multiple times.' + ), + ) + + name = self._queue[0]['operation_name'] + if name != model.name: + raise StubResponseError( + operation_name=model.name, + reason=f'Operation mismatch: found response for {name}.', + ) + + def _set_account_id_for_endpoint_resolution(self, builtins, **kwargs): + # Account ID comes from credentials and will try to resolve on endpoint resolution + # when it's a builtin. This breaks any stubber in environments where credentials + # are not available. We mock it to be a None value so that we don't attempt to + # resolve credentials. + if 'AWS::Auth::AccountId' in builtins: + builtins['AWS::Auth::AccountId'] = None + + def _get_response_handler(self, model, params, context, **kwargs): + self._assert_expected_call_order(model, params) + # Pop off the entire response once everything has been validated + return self._queue.popleft()['response'] + + def _assert_expected_params(self, model, params, context, **kwargs): + if self._should_not_stub(context): + return + self._assert_expected_call_order(model, params) + expected_params = self._queue[0]['expected_params'] + if expected_params is None: + return + + # Validate the parameters are equal + for param, value in expected_params.items(): + if param not in params or expected_params[param] != params[param]: + raise StubAssertionError( + operation_name=model.name, + reason=( + f'Expected parameters:\n{pformat(expected_params)},\n' + f'but received:\n{pformat(params)}' + ), + ) + + # Ensure there are no extra params hanging around + if sorted(expected_params.keys()) != sorted(params.keys()): + raise StubAssertionError( + operation_name=model.name, + reason=( + f'Expected parameters:\n{pformat(expected_params)},\n' + f'but received:\n{pformat(params)}' + ), + ) + + def _should_not_stub(self, context): + # Do not include presign requests when processing stubbed client calls + # as a presign request will never have an HTTP request sent over the + # wire for it and therefore not receive a response back. + if context and context.get('is_presign_request'): + return True + + def _validate_operation_response(self, operation_name, service_response): + service_model = self.client.meta.service_model + operation_model = service_model.operation_model(operation_name) + output_shape = operation_model.output_shape + + # Remove ResponseMetadata so that the validator doesn't attempt to + # perform validation on it. + response = service_response + if 'ResponseMetadata' in response: + response = copy.copy(service_response) + del response['ResponseMetadata'] + + self._validate_response(output_shape, response) + + def _validate_response(self, shape, response): + if shape is not None: + validate_parameters(response, shape) + elif response: + # If the output shape is None, that means the response should be + # empty apart from ResponseMetadata + raise ParamValidationError( + report=( + "Service response should only contain ResponseMetadata." + ) + ) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/tokens.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/tokens.py new file mode 100644 index 0000000000000000000000000000000000000000..d90861823112a17f99db2ce286780f38ce4865b5 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/tokens.py @@ -0,0 +1,363 @@ +# Copyright 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import json +import logging +import os +import threading +from datetime import datetime, timedelta +from typing import NamedTuple, Optional + +import dateutil.parser +from dateutil.tz import tzutc + +from botocore import UNSIGNED +from botocore.compat import total_seconds +from botocore.config import Config +from botocore.exceptions import ( + ClientError, + InvalidConfigError, + TokenRetrievalError, +) +from botocore.utils import ( + CachedProperty, + JSONFileCache, + SSOTokenLoader, + create_nested_client, + get_token_from_environment, +) + +logger = logging.getLogger(__name__) + + +def _utc_now(): + return datetime.now(tzutc()) + + +def create_token_resolver(session): + providers = [ + ScopedEnvTokenProvider(session), + SSOTokenProvider(session), + ] + return TokenProviderChain(providers=providers) + + +def _serialize_utc_timestamp(obj): + if isinstance(obj, datetime): + return obj.strftime("%Y-%m-%dT%H:%M:%SZ") + return obj + + +def _sso_json_dumps(obj): + return json.dumps(obj, default=_serialize_utc_timestamp) + + +class FrozenAuthToken(NamedTuple): + token: str + expiration: Optional[datetime] = None + + +class DeferredRefreshableToken: + # The time at which we'll attempt to refresh, but not block if someone else + # is refreshing. + _advisory_refresh_timeout = 15 * 60 + # The time at which all threads will block waiting for a refreshed token + _mandatory_refresh_timeout = 10 * 60 + # Refresh at most once every minute to avoid blocking every request + _attempt_timeout = 60 + + def __init__(self, method, refresh_using, time_fetcher=_utc_now): + self._time_fetcher = time_fetcher + self._refresh_using = refresh_using + self.method = method + + # The frozen token is protected by this lock + self._refresh_lock = threading.Lock() + self._frozen_token = None + self._next_refresh = None + + def get_frozen_token(self): + self._refresh() + return self._frozen_token + + def _refresh(self): + # If we don't need to refresh just return + refresh_type = self._should_refresh() + if not refresh_type: + return None + + # Block for refresh if we're in the mandatory refresh window + block_for_refresh = refresh_type == "mandatory" + if self._refresh_lock.acquire(block_for_refresh): + try: + self._protected_refresh() + finally: + self._refresh_lock.release() + + def _protected_refresh(self): + # This should only be called after acquiring the refresh lock + # Another thread may have already refreshed, double check refresh + refresh_type = self._should_refresh() + if not refresh_type: + return None + + try: + now = self._time_fetcher() + self._next_refresh = now + timedelta(seconds=self._attempt_timeout) + self._frozen_token = self._refresh_using() + except Exception: + logger.warning( + "Refreshing token failed during the %s refresh period.", + refresh_type, + exc_info=True, + ) + if refresh_type == "mandatory": + # This refresh was mandatory, error must be propagated back + raise + + if self._is_expired(): + # Fresh credentials should never be expired + raise TokenRetrievalError( + provider=self.method, + error_msg="Token has expired and refresh failed", + ) + + def _is_expired(self): + if self._frozen_token is None: + return False + + expiration = self._frozen_token.expiration + remaining = total_seconds(expiration - self._time_fetcher()) + return remaining <= 0 + + def _should_refresh(self): + if self._frozen_token is None: + # We don't have a token yet, mandatory refresh + return "mandatory" + + expiration = self._frozen_token.expiration + if expiration is None: + # No expiration, so assume we don't need to refresh. + return None + + now = self._time_fetcher() + if now < self._next_refresh: + return None + + remaining = total_seconds(expiration - now) + + if remaining < self._mandatory_refresh_timeout: + return "mandatory" + elif remaining < self._advisory_refresh_timeout: + return "advisory" + + return None + + +class TokenProviderChain: + def __init__(self, providers=None): + if providers is None: + providers = [] + self._providers = providers + + def load_token(self, **kwargs): + for provider in self._providers: + token = provider.load_token(**kwargs) + if token is not None: + return token + return None + + +class SSOTokenProvider: + METHOD = "sso" + _REFRESH_WINDOW = 15 * 60 + _SSO_TOKEN_CACHE_DIR = os.path.expanduser( + os.path.join("~", ".aws", "sso", "cache") + ) + _SSO_CONFIG_VARS = [ + "sso_start_url", + "sso_region", + ] + _GRANT_TYPE = "refresh_token" + DEFAULT_CACHE_CLS = JSONFileCache + + def __init__( + self, session, cache=None, time_fetcher=_utc_now, profile_name=None + ): + self._session = session + if cache is None: + cache = self.DEFAULT_CACHE_CLS( + self._SSO_TOKEN_CACHE_DIR, + dumps_func=_sso_json_dumps, + ) + self._now = time_fetcher + self._cache = cache + self._token_loader = SSOTokenLoader(cache=self._cache) + self._profile_name = ( + profile_name + or self._session.get_config_variable("profile") + or 'default' + ) + + def _load_sso_config(self): + loaded_config = self._session.full_config + profiles = loaded_config.get("profiles", {}) + sso_sessions = loaded_config.get("sso_sessions", {}) + profile_config = profiles.get(self._profile_name, {}) + + if "sso_session" not in profile_config: + return + + sso_session_name = profile_config["sso_session"] + sso_config = sso_sessions.get(sso_session_name, None) + + if not sso_config: + error_msg = ( + f'The profile "{self._profile_name}" is configured to use the SSO ' + f'token provider but the "{sso_session_name}" sso_session ' + f"configuration does not exist." + ) + raise InvalidConfigError(error_msg=error_msg) + + missing_configs = [] + for var in self._SSO_CONFIG_VARS: + if var not in sso_config: + missing_configs.append(var) + + if missing_configs: + error_msg = ( + f'The profile "{self._profile_name}" is configured to use the SSO ' + f"token provider but is missing the following configuration: " + f"{missing_configs}." + ) + raise InvalidConfigError(error_msg=error_msg) + + return { + "session_name": sso_session_name, + "sso_region": sso_config["sso_region"], + "sso_start_url": sso_config["sso_start_url"], + } + + @CachedProperty + def _sso_config(self): + return self._load_sso_config() + + @CachedProperty + def _client(self): + config = Config( + region_name=self._sso_config["sso_region"], + signature_version=UNSIGNED, + ) + return create_nested_client(self._session, "sso-oidc", config=config) + + def _attempt_create_token(self, token): + response = self._client.create_token( + grantType=self._GRANT_TYPE, + clientId=token["clientId"], + clientSecret=token["clientSecret"], + refreshToken=token["refreshToken"], + ) + expires_in = timedelta(seconds=response["expiresIn"]) + new_token = { + "startUrl": self._sso_config["sso_start_url"], + "region": self._sso_config["sso_region"], + "accessToken": response["accessToken"], + "expiresAt": self._now() + expires_in, + # Cache the registration alongside the token + "clientId": token["clientId"], + "clientSecret": token["clientSecret"], + "registrationExpiresAt": token["registrationExpiresAt"], + } + if "refreshToken" in response: + new_token["refreshToken"] = response["refreshToken"] + logger.info("SSO Token refresh succeeded") + return new_token + + def _refresh_access_token(self, token): + keys = ( + "refreshToken", + "clientId", + "clientSecret", + "registrationExpiresAt", + ) + missing_keys = [k for k in keys if k not in token] + if missing_keys: + msg = f"Unable to refresh SSO token: missing keys: {missing_keys}" + logger.info(msg) + return None + + expiry = dateutil.parser.parse(token["registrationExpiresAt"]) + if total_seconds(expiry - self._now()) <= 0: + logger.info("SSO token registration expired at %s", expiry) + return None + + try: + return self._attempt_create_token(token) + except ClientError: + logger.warning("SSO token refresh attempt failed", exc_info=True) + return None + + def _refresher(self): + start_url = self._sso_config["sso_start_url"] + session_name = self._sso_config["session_name"] + logger.info("Loading cached SSO token for %s", session_name) + token_dict = self._token_loader(start_url, session_name=session_name) + expiration = dateutil.parser.parse(token_dict["expiresAt"]) + logger.debug("Cached SSO token expires at %s", expiration) + + remaining = total_seconds(expiration - self._now()) + if remaining < self._REFRESH_WINDOW: + new_token_dict = self._refresh_access_token(token_dict) + if new_token_dict is not None: + token_dict = new_token_dict + expiration = token_dict["expiresAt"] + self._token_loader.save_token( + start_url, token_dict, session_name=session_name + ) + + return FrozenAuthToken( + token_dict["accessToken"], expiration=expiration + ) + + def load_token(self, **kwargs): + if self._sso_config is None: + return None + + return DeferredRefreshableToken( + self.METHOD, self._refresher, time_fetcher=self._now + ) + + +class ScopedEnvTokenProvider: + """ + Token provider that loads tokens from environment variables scoped to + a specific `signing_name`. + """ + + METHOD = 'env' + + def __init__(self, session, environ=None): + self._session = session + if environ is None: + environ = os.environ + self.environ = environ + + def load_token(self, **kwargs): + signing_name = kwargs.get("signing_name") + if signing_name is None: + return None + + token = get_token_from_environment(signing_name, self.environ) + + if token is not None: + logger.info("Found token in environment variables.") + return FrozenAuthToken(token) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/translate.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/translate.py new file mode 100644 index 0000000000000000000000000000000000000000..ecfe3bcaf46629a3d75bef81a60ac45e76cfa4db --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/translate.py @@ -0,0 +1,78 @@ +# Copyright (c) 2012-2013 Mitch Garnaat http://garnaat.org/ +# Copyright 2012-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import copy + +from botocore.utils import merge_dicts + + +def build_retry_config( + endpoint_prefix, retry_model, definitions, client_retry_config=None +): + service_config = retry_model.get(endpoint_prefix, {}) + resolve_references(service_config, definitions) + # We want to merge the global defaults with the service specific + # defaults, with the service specific defaults taking precedence. + # So we use the global defaults as the base. + # + # A deepcopy is done on the retry defaults because it ensures the + # retry model has no chance of getting mutated when the service specific + # configuration or client retry config is merged in. + final_retry_config = { + '__default__': copy.deepcopy(retry_model.get('__default__', {})) + } + resolve_references(final_retry_config, definitions) + # The merge the service specific config on top. + merge_dicts(final_retry_config, service_config) + if client_retry_config is not None: + _merge_client_retry_config(final_retry_config, client_retry_config) + return final_retry_config + + +def _merge_client_retry_config(retry_config, client_retry_config): + max_retry_attempts_override = client_retry_config.get('max_attempts') + if max_retry_attempts_override is not None: + # In the retry config, the max_attempts refers to the maximum number + # of requests in general will be made. However, for the client's + # retry config it refers to how many retry attempts will be made at + # most. So to translate this number from the client config, one is + # added to convert it to the maximum number request that will be made + # by including the initial request. + # + # It is also important to note that if we ever support per operation + # configuration in the retry model via the client, we will need to + # revisit this logic to make sure max_attempts gets applied + # per operation. + retry_config['__default__']['max_attempts'] = ( + max_retry_attempts_override + 1 + ) + + +def resolve_references(config, definitions): + """Recursively replace $ref keys. + + To cut down on duplication, common definitions can be declared + (and passed in via the ``definitions`` attribute) and then + references as {"$ref": "name"}, when this happens the reference + dict is placed with the value from the ``definition`` dict. + + This is recursively done. + + """ + for key, value in config.items(): + if isinstance(value, dict): + if len(value) == 1 and list(value.keys())[0] == '$ref': + # Then we need to resolve this reference. + config[key] = definitions[list(value.values())[0]] + else: + resolve_references(value, definitions) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/useragent.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/useragent.py new file mode 100644 index 0000000000000000000000000000000000000000..cb12062e55774626b771062f67ffac6eb2a67056 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/useragent.py @@ -0,0 +1,669 @@ +# Copyright 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +""" +NOTE: All classes and functions in this module are considered private and are +subject to abrupt breaking changes. Please do not use them directly. + +To modify the User-Agent header sent by botocore, use one of these +configuration options: +* The ``AWS_SDK_UA_APP_ID`` environment variable. +* The ``sdk_ua_app_id`` setting in the shared AWS config file. +* The ``user_agent_appid`` field in the :py:class:`botocore.config.Config`. +* The ``user_agent_extra`` field in the :py:class:`botocore.config.Config`. + +""" + +import logging +import os +import platform +from copy import copy +from string import ascii_letters, digits +from typing import NamedTuple, Optional + +from botocore import __version__ as botocore_version +from botocore.compat import HAS_CRT +from botocore.context import get_context + +logger = logging.getLogger(__name__) + + +_USERAGENT_ALLOWED_CHARACTERS = ascii_letters + digits + "!$%&'*+-.^_`|~," +_USERAGENT_ALLOWED_OS_NAMES = ( + 'windows', + 'linux', + 'macos', + 'android', + 'ios', + 'watchos', + 'tvos', + 'other', +) +_USERAGENT_PLATFORM_NAME_MAPPINGS = {'darwin': 'macos'} +# The name by which botocore is identified in the User-Agent header. While most +# AWS SDKs follow a naming pattern of "aws-sdk-*", botocore and boto3 continue +# using their existing values. Uses uppercase "B" with all other characters +# lowercase. +_USERAGENT_SDK_NAME = 'Botocore' +_USERAGENT_FEATURE_MAPPINGS = { + 'WAITER': 'B', + 'PAGINATOR': 'C', + "RETRY_MODE_LEGACY": "D", + "RETRY_MODE_STANDARD": "E", + "RETRY_MODE_ADAPTIVE": "F", + 'S3_TRANSFER': 'G', + 'GZIP_REQUEST_COMPRESSION': 'L', + 'PROTOCOL_RPC_V2_CBOR': 'M', + 'ENDPOINT_OVERRIDE': 'N', + 'ACCOUNT_ID_MODE_PREFERRED': 'P', + 'ACCOUNT_ID_MODE_DISABLED': 'Q', + 'ACCOUNT_ID_MODE_REQUIRED': 'R', + 'SIGV4A_SIGNING': 'S', + 'RESOLVED_ACCOUNT_ID': 'T', + 'FLEXIBLE_CHECKSUMS_REQ_CRC32': 'U', + 'FLEXIBLE_CHECKSUMS_REQ_CRC32C': 'V', + 'FLEXIBLE_CHECKSUMS_REQ_CRC64': 'W', + 'FLEXIBLE_CHECKSUMS_REQ_SHA1': 'X', + 'FLEXIBLE_CHECKSUMS_REQ_SHA256': 'Y', + 'FLEXIBLE_CHECKSUMS_REQ_WHEN_SUPPORTED': 'Z', + 'FLEXIBLE_CHECKSUMS_REQ_WHEN_REQUIRED': 'a', + 'FLEXIBLE_CHECKSUMS_RES_WHEN_SUPPORTED': 'b', + 'FLEXIBLE_CHECKSUMS_RES_WHEN_REQUIRED': 'c', + 'CREDENTIALS_CODE': 'e', + 'CREDENTIALS_ENV_VARS': 'g', + 'CREDENTIALS_ENV_VARS_STS_WEB_ID_TOKEN': 'h', + 'CREDENTIALS_STS_ASSUME_ROLE': 'i', + 'CREDENTIALS_STS_ASSUME_ROLE_WEB_ID': 'k', + 'CREDENTIALS_PROFILE': 'n', + 'CREDENTIALS_PROFILE_SOURCE_PROFILE': 'o', + 'CREDENTIALS_PROFILE_NAMED_PROVIDER': 'p', + 'CREDENTIALS_PROFILE_STS_WEB_ID_TOKEN': 'q', + 'CREDENTIALS_PROFILE_SSO': 'r', + 'CREDENTIALS_SSO': 's', + 'CREDENTIALS_PROFILE_SSO_LEGACY': 't', + 'CREDENTIALS_SSO_LEGACY': 'u', + 'CREDENTIALS_PROFILE_PROCESS': 'v', + 'CREDENTIALS_PROCESS': 'w', + 'CREDENTIALS_BOTO2_CONFIG_FILE': 'x', + 'CREDENTIALS_HTTP': 'z', + 'CREDENTIALS_IMDS': '0', + 'BEARER_SERVICE_ENV_VARS': '3', + 'CLI_V1_TO_V2_MIGRATION_DEBUG_MODE': '-', +} + + +def register_feature_id(feature_id): + """Adds metric value to the current context object's ``features`` set. + + :type feature_id: str + :param feature_id: The name of the feature to register. Value must be a key + in the ``_USERAGENT_FEATURE_MAPPINGS`` dict. + """ + ctx = get_context() + if ctx is None: + # Never register features outside the scope of a + # ``botocore.context.start_as_current_context`` context manager. + # Otherwise, the context variable won't be reset and features will + # bleed into all subsequent requests. Return instead of raising an + # exception since this function could be invoked in a public interface. + return + if val := _USERAGENT_FEATURE_MAPPINGS.get(feature_id): + ctx.features.add(val) + + +def register_feature_ids(feature_ids): + """Adds multiple feature IDs to the current context object's ``features`` set. + + :type feature_ids: iterable of str + :param feature_ids: An iterable of feature ID strings to register. Each + value must be a key in the ``_USERAGENT_FEATURE_MAPPINGS`` dict. + """ + for feature_id in feature_ids: + register_feature_id(feature_id) + + +def sanitize_user_agent_string_component(raw_str, allow_hash): + """Replaces all not allowed characters in the string with a dash ("-"). + + Allowed characters are ASCII alphanumerics and ``!$%&'*+-.^_`|~,``. If + ``allow_hash`` is ``True``, "#"``" is also allowed. + + :type raw_str: str + :param raw_str: The input string to be sanitized. + + :type allow_hash: bool + :param allow_hash: Whether "#" is considered an allowed character. + """ + return ''.join( + c + if c in _USERAGENT_ALLOWED_CHARACTERS or (allow_hash and c == '#') + else '-' + for c in raw_str + ) + + +class UserAgentComponentSizeConfig: + """ + Configures the max size of a built user agent string component and the + delimiter used to truncate the string if the size is above the max. + """ + + def __init__(self, max_size_in_bytes: int, delimiter: str): + self.max_size_in_bytes = max_size_in_bytes + self.delimiter = delimiter + self._validate_input() + + def _validate_input(self): + if self.max_size_in_bytes < 1: + raise ValueError( + f'Invalid `max_size_in_bytes`: {self.max_size_in_bytes}. ' + 'Value must be a positive integer.' + ) + + +class UserAgentComponent(NamedTuple): + """ + Component of a Botocore User-Agent header string in the standard format. + + Each component consists of a prefix, a name, a value, and a size_config. + In the string representation these are combined in the format + ``prefix/name#value``. + + ``size_config`` configures the max size and truncation strategy for the + built user agent string component. + + This class is considered private and is subject to abrupt breaking changes. + """ + + prefix: str + name: str + value: Optional[str] = None + size_config: Optional[UserAgentComponentSizeConfig] = None + + def to_string(self): + """Create string like 'prefix/name#value' from a UserAgentComponent.""" + clean_prefix = sanitize_user_agent_string_component( + self.prefix, allow_hash=True + ) + clean_name = sanitize_user_agent_string_component( + self.name, allow_hash=False + ) + if self.value is None or self.value == '': + clean_string = f'{clean_prefix}/{clean_name}' + else: + clean_value = sanitize_user_agent_string_component( + self.value, allow_hash=True + ) + clean_string = f'{clean_prefix}/{clean_name}#{clean_value}' + if self.size_config is not None: + clean_string = self._truncate_string( + clean_string, + self.size_config.max_size_in_bytes, + self.size_config.delimiter, + ) + return clean_string + + def _truncate_string(self, string, max_size, delimiter): + """ + Pop ``delimiter``-separated values until encoded string is less than or + equal to ``max_size``. + """ + orig = string + while len(string.encode('utf-8')) > max_size: + parts = string.split(delimiter) + parts.pop() + string = delimiter.join(parts) + + if string == '': + logger.debug( + "User agent component `%s` could not be truncated to " + "`%s` bytes with delimiter " + "`%s` without losing all contents. " + "Value will be omitted from user agent string.", + orig, + max_size, + delimiter, + ) + return string + + +class RawStringUserAgentComponent: + """ + UserAgentComponent interface wrapper around ``str``. + + Use for User-Agent header components that are not constructed from + prefix+name+value but instead are provided as strings. No sanitization is + performed. + """ + + def __init__(self, value): + self._value = value + + def to_string(self): + return self._value + + +# This is not a public interface and is subject to abrupt breaking changes. +# Any usage is not advised or supported in external code bases. +try: + from botocore.customizations.useragent import modify_components +except ImportError: + # Default implementation that returns unmodified User-Agent components. + def modify_components(components): + return components + + +class UserAgentString: + """ + Generator for AWS SDK User-Agent header strings. + + The User-Agent header format contains information from session, client, and + request context. ``UserAgentString`` provides methods for collecting the + information and ``to_string`` for assembling it into the standardized + string format. + + Example usage: + + ua_session = UserAgentString.from_environment() + ua_session.set_session_config(...) + ua_client = ua_session.with_client_config(Config(...)) + ua_string = ua_request.to_string() + + For testing or when information from all sources is available at the same + time, the methods can be chained: + + ua_string = ( + UserAgentString + .from_environment() + .set_session_config(...) + .with_client_config(Config(...)) + .to_string() + ) + + """ + + def __init__( + self, + platform_name, + platform_version, + platform_machine, + python_version, + python_implementation, + execution_env, + crt_version=None, + ): + """ + :type platform_name: str + :param platform_name: Name of the operating system or equivalent + platform name. Should be sourced from :py:meth:`platform.system`. + :type platform_version: str + :param platform_version: Version of the operating system or equivalent + platform name. Should be sourced from :py:meth:`platform.version`. + :type platform_machine: str + :param platform_version: Processor architecture or machine type. For + example "x86_64". Should be sourced from :py:meth:`platform.machine`. + :type python_version: str + :param python_version: Version of the python implementation as str. + Should be sourced from :py:meth:`platform.python_version`. + :type python_implementation: str + :param python_implementation: Name of the python implementation. + Should be sourced from :py:meth:`platform.python_implementation`. + :type execution_env: str + :param execution_env: The value of the AWS execution environment. + Should be sourced from the ``AWS_EXECUTION_ENV` environment + variable. + :type crt_version: str + :param crt_version: Version string of awscrt package, if installed. + """ + self._platform_name = platform_name + self._platform_version = platform_version + self._platform_machine = platform_machine + self._python_version = python_version + self._python_implementation = python_implementation + self._execution_env = execution_env + self._crt_version = crt_version + + # Components that can be added with ``set_session_config()`` + self._session_user_agent_name = None + self._session_user_agent_version = None + self._session_user_agent_extra = None + + self._client_config = None + + # Component that can be set with ``set_client_features()`` + self._client_features = None + + @classmethod + def from_environment(cls): + crt_version = None + if HAS_CRT: + crt_version = _get_crt_version() or 'Unknown' + return cls( + platform_name=platform.system(), + platform_version=platform.release(), + platform_machine=platform.machine(), + python_version=platform.python_version(), + python_implementation=platform.python_implementation(), + execution_env=os.environ.get('AWS_EXECUTION_ENV'), + crt_version=crt_version, + ) + + def set_session_config( + self, + session_user_agent_name, + session_user_agent_version, + session_user_agent_extra, + ): + """ + Set the user agent configuration values that apply at session level. + + :param user_agent_name: The user agent name configured in the + :py:class:`botocore.session.Session` object. For backwards + compatibility, this will always be at the beginning of the + User-Agent string, together with ``user_agent_version``. + :param user_agent_version: The user agent version configured in the + :py:class:`botocore.session.Session` object. + :param user_agent_extra: The user agent "extra" configured in the + :py:class:`botocore.session.Session` object. + """ + self._session_user_agent_name = session_user_agent_name + self._session_user_agent_version = session_user_agent_version + self._session_user_agent_extra = session_user_agent_extra + return self + + def set_client_features(self, features): + """ + Persist client-specific features registered before or during client + creation. + + :type features: Set[str] + :param features: A set of client-specific features. + """ + self._client_features = features + + def with_client_config(self, client_config): + """ + Create a copy with all original values and client-specific values. + + :type client_config: botocore.config.Config + :param client_config: The client configuration object. + """ + cp = copy(self) + cp._client_config = client_config + return cp + + def to_string(self): + """ + Build User-Agent header string from the object's properties. + """ + config_ua_override = None + if self._client_config: + if hasattr(self._client_config, '_supplied_user_agent'): + config_ua_override = self._client_config._supplied_user_agent + else: + config_ua_override = self._client_config.user_agent + + if config_ua_override is not None: + return self._build_legacy_ua_string(config_ua_override) + + components = [ + *self._build_sdk_metadata(), + RawStringUserAgentComponent('ua/2.1'), + *self._build_os_metadata(), + *self._build_architecture_metadata(), + *self._build_language_metadata(), + *self._build_execution_env_metadata(), + *self._build_feature_metadata(), + *self._build_config_metadata(), + *self._build_app_id(), + *self._build_extra(), + ] + + components = modify_components(components) + + return ' '.join( + [comp.to_string() for comp in components if comp.to_string()] + ) + + def _build_sdk_metadata(self): + """ + Build the SDK name and version component of the User-Agent header. + + For backwards-compatibility both session-level and client-level config + of custom tool names are honored. If this removes the Botocore + information from the start of the string, Botocore's name and version + are included as a separate field with "md" prefix. + """ + sdk_md = [] + if ( + self._session_user_agent_name + and self._session_user_agent_version + and ( + self._session_user_agent_name != _USERAGENT_SDK_NAME + or self._session_user_agent_version != botocore_version + ) + ): + sdk_md.extend( + [ + UserAgentComponent( + self._session_user_agent_name, + self._session_user_agent_version, + ), + UserAgentComponent( + 'md', _USERAGENT_SDK_NAME, botocore_version + ), + ] + ) + else: + sdk_md.append( + UserAgentComponent(_USERAGENT_SDK_NAME, botocore_version) + ) + + if self._crt_version is not None: + sdk_md.append( + UserAgentComponent('md', 'awscrt', self._crt_version) + ) + + return sdk_md + + def _build_os_metadata(self): + """ + Build the OS/platform components of the User-Agent header string. + + For recognized platform names that match or map to an entry in the list + of standardized OS names, a single component with prefix "os" is + returned. Otherwise, one component "os/other" is returned and a second + with prefix "md" and the raw platform name. + + String representations of example return values: + * ``os/macos#10.13.6`` + * ``os/linux`` + * ``os/other`` + * ``os/other md/foobar#1.2.3`` + """ + if self._platform_name is None: + return [UserAgentComponent('os', 'other')] + + plt_name_lower = self._platform_name.lower() + if plt_name_lower in _USERAGENT_ALLOWED_OS_NAMES: + os_family = plt_name_lower + elif plt_name_lower in _USERAGENT_PLATFORM_NAME_MAPPINGS: + os_family = _USERAGENT_PLATFORM_NAME_MAPPINGS[plt_name_lower] + else: + os_family = None + + if os_family is not None: + return [ + UserAgentComponent('os', os_family, self._platform_version) + ] + else: + return [ + UserAgentComponent('os', 'other'), + UserAgentComponent( + 'md', self._platform_name, self._platform_version + ), + ] + + def _build_architecture_metadata(self): + """ + Build architecture component of the User-Agent header string. + + Returns the machine type with prefix "md" and name "arch", if one is + available. Common values include "x86_64", "arm64", "i386". + """ + if self._platform_machine: + return [ + UserAgentComponent( + 'md', 'arch', self._platform_machine.lower() + ) + ] + return [] + + def _build_language_metadata(self): + """ + Build the language components of the User-Agent header string. + + Returns the Python version in a component with prefix "lang" and name + "python". The Python implementation (e.g. CPython, PyPy) is returned as + separate metadata component with prefix "md" and name "pyimpl". + + String representation of an example return value: + ``lang/python#3.10.4 md/pyimpl#CPython`` + """ + lang_md = [ + UserAgentComponent('lang', 'python', self._python_version), + ] + if self._python_implementation: + lang_md.append( + UserAgentComponent('md', 'pyimpl', self._python_implementation) + ) + return lang_md + + def _build_execution_env_metadata(self): + """ + Build the execution environment component of the User-Agent header. + + Returns a single component prefixed with "exec-env", usually sourced + from the environment variable AWS_EXECUTION_ENV. + """ + if self._execution_env: + return [UserAgentComponent('exec-env', self._execution_env)] + else: + return [] + + def _build_feature_metadata(self): + """ + Build the features component of the User-Agent header string. + + Returns a single component with prefix "m" followed by a list of + comma-separated metric values. + """ + ctx = get_context() + context_features = set() if ctx is None else ctx.features + client_features = self._client_features or set() + features = client_features.union(context_features) + if not features: + return [] + size_config = UserAgentComponentSizeConfig(1024, ',') + return [ + UserAgentComponent( + 'm', ','.join(features), size_config=size_config + ) + ] + + def _build_config_metadata(self): + """ + Build the configuration components of the User-Agent header string. + + Returns a list of components with prefix "cfg" followed by the config + setting name and its value. Tracked configuration settings may be + added or removed in future versions. + """ + if not self._client_config or not self._client_config.retries: + return [] + retry_mode = self._client_config.retries.get('mode') + cfg_md = [UserAgentComponent('cfg', 'retry-mode', retry_mode)] + if self._client_config.endpoint_discovery_enabled: + cfg_md.append(UserAgentComponent('cfg', 'endpoint-discovery')) + return cfg_md + + def _build_app_id(self): + """ + Build app component of the User-Agent header string. + + Returns a single component with prefix "app" and value sourced from the + ``user_agent_appid`` field in :py:class:`botocore.config.Config` or + the ``sdk_ua_app_id`` setting in the shared configuration file, or the + ``AWS_SDK_UA_APP_ID`` environment variable. These are the recommended + ways for apps built with Botocore to insert their identifer into the + User-Agent header. + """ + if self._client_config and self._client_config.user_agent_appid: + return [ + UserAgentComponent('app', self._client_config.user_agent_appid) + ] + else: + return [] + + def _build_extra(self): + """User agent string components based on legacy "extra" settings. + + Creates components from the session-level and client-level + ``user_agent_extra`` setting, if present. Both are passed through + verbatim and should be appended at the end of the string. + + Preferred ways to inject application-specific information into + botocore's User-Agent header string are the ``user_agent_appid` field + in :py:class:`botocore.config.Config`. The ``AWS_SDK_UA_APP_ID`` + environment variable and the ``sdk_ua_app_id`` configuration file + setting are alternative ways to set the ``user_agent_appid`` config. + """ + extra = [] + if self._session_user_agent_extra: + extra.append( + RawStringUserAgentComponent(self._session_user_agent_extra) + ) + if self._client_config and self._client_config.user_agent_extra: + extra.append( + RawStringUserAgentComponent( + self._client_config.user_agent_extra + ) + ) + return extra + + def _build_legacy_ua_string(self, config_ua_override): + components = [config_ua_override] + if self._session_user_agent_extra: + components.append(self._session_user_agent_extra) + if self._client_config.user_agent_extra: + components.append(self._client_config.user_agent_extra) + return ' '.join(components) + + def rebuild_and_replace_user_agent_handler( + self, operation_name, request, **kwargs + ): + ua_string = self.to_string() + if request.headers.get('User-Agent'): + request.headers.replace_header('User-Agent', ua_string) + + +def _get_crt_version(): + """ + This function is considered private and is subject to abrupt breaking + changes. + """ + try: + import awscrt + + return awscrt.__version__ + except AttributeError: + return None diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/utils.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/utils.py new file mode 100644 index 0000000000000000000000000000000000000000..3b5d9e7a200af3d6c75fe8824d0859d0e2f39c47 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/utils.py @@ -0,0 +1,3690 @@ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import base64 +import binascii +import datetime +import email.message +import functools +import hashlib +import io +import logging +import os +import random +import re +import socket +import time +import warnings +import weakref +from datetime import datetime as _DatetimeClass +from ipaddress import ip_address +from pathlib import Path +from urllib.request import getproxies, proxy_bypass + +import dateutil.parser +from dateutil.tz import tzutc +from urllib3.exceptions import LocationParseError + +import botocore +import botocore.awsrequest +import botocore.httpsession + +# IP Regexes retained for backwards compatibility +from botocore.compat import ( + HAS_CRT, + HEX_PAT, # noqa: F401 + IPV4_PAT, # noqa: F401 + IPV4_RE, + IPV6_ADDRZ_PAT, # noqa: F401 + IPV6_ADDRZ_RE, + IPV6_PAT, # noqa: F401 + LS32_PAT, # noqa: F401 + MD5_AVAILABLE, + UNRESERVED_PAT, # noqa: F401 + UNSAFE_URL_CHARS, + ZONE_ID_PAT, # noqa: F401 + OrderedDict, + get_current_datetime, + get_md5, + get_tzinfo_options, + json, + quote, + urlparse, + urlsplit, + urlunsplit, + zip_longest, +) +from botocore.exceptions import ( + ClientError, + ConfigNotFound, + ConnectionClosedError, + ConnectTimeoutError, + EndpointConnectionError, + HTTPClientError, + InvalidDNSNameError, + InvalidEndpointConfigurationError, + InvalidExpressionError, + InvalidHostLabelError, + InvalidIMDSEndpointError, + InvalidIMDSEndpointModeError, + InvalidRegionError, + MetadataRetrievalError, + MissingDependencyException, + ReadTimeoutError, + SSOTokenLoadError, + UnsupportedOutpostResourceError, + UnsupportedS3AccesspointConfigurationError, + UnsupportedS3ArnError, + UnsupportedS3ConfigurationError, + UnsupportedS3ControlArnError, + UnsupportedS3ControlConfigurationError, +) +from botocore.plugin import ( + PluginContext, + reset_plugin_context, + set_plugin_context, +) + +logger = logging.getLogger(__name__) +DEFAULT_METADATA_SERVICE_TIMEOUT = 1 +METADATA_BASE_URL = 'http://169.254.169.254/' +METADATA_BASE_URL_IPv6 = 'http://[fd00:ec2::254]/' +METADATA_ENDPOINT_MODES = ('ipv4', 'ipv6') + +# These are chars that do not need to be urlencoded. +# Based on rfc2986, section 2.3 +SAFE_CHARS = '-._~' +LABEL_RE = re.compile(r'[a-z0-9][a-z0-9\-]*[a-z0-9]') +RETRYABLE_HTTP_ERRORS = ( + ReadTimeoutError, + EndpointConnectionError, + ConnectionClosedError, + ConnectTimeoutError, +) +S3_ACCELERATE_WHITELIST = ['dualstack'] +# In switching events from using service name / endpoint prefix to service +# id, we have to preserve compatibility. This maps the instances where either +# is different than the transformed service id. +EVENT_ALIASES = { + "api.mediatailor": "mediatailor", + "api.pricing": "pricing", + "api.sagemaker": "sagemaker", + "apigateway": "api-gateway", + "application-autoscaling": "application-auto-scaling", + "appstream2": "appstream", + "autoscaling": "auto-scaling", + "autoscaling-plans": "auto-scaling-plans", + "ce": "cost-explorer", + "cloudhsmv2": "cloudhsm-v2", + "cloudsearchdomain": "cloudsearch-domain", + "cognito-idp": "cognito-identity-provider", + "config": "config-service", + "cur": "cost-and-usage-report-service", + "data.iot": "iot-data-plane", + "data.jobs.iot": "iot-jobs-data-plane", + "data.mediastore": "mediastore-data", + "datapipeline": "data-pipeline", + "devicefarm": "device-farm", + "directconnect": "direct-connect", + "discovery": "application-discovery-service", + "dms": "database-migration-service", + "ds": "directory-service", + "dynamodbstreams": "dynamodb-streams", + "elasticbeanstalk": "elastic-beanstalk", + "elasticfilesystem": "efs", + "elasticloadbalancing": "elastic-load-balancing", + "elasticmapreduce": "emr", + "elastictranscoder": "elastic-transcoder", + "elb": "elastic-load-balancing", + "elbv2": "elastic-load-balancing-v2", + "email": "ses", + "entitlement.marketplace": "marketplace-entitlement-service", + "es": "elasticsearch-service", + "events": "eventbridge", + "cloudwatch-events": "eventbridge", + "iot-data": "iot-data-plane", + "iot-jobs-data": "iot-jobs-data-plane", + "kinesisanalytics": "kinesis-analytics", + "kinesisvideo": "kinesis-video", + "lex-models": "lex-model-building-service", + "lex-runtime": "lex-runtime-service", + "logs": "cloudwatch-logs", + "machinelearning": "machine-learning", + "marketplace-entitlement": "marketplace-entitlement-service", + "marketplacecommerceanalytics": "marketplace-commerce-analytics", + "metering.marketplace": "marketplace-metering", + "meteringmarketplace": "marketplace-metering", + "mgh": "migration-hub", + "models.lex": "lex-model-building-service", + "monitoring": "cloudwatch", + "mturk-requester": "mturk", + "resourcegroupstaggingapi": "resource-groups-tagging-api", + "route53": "route-53", + "route53domains": "route-53-domains", + "runtime.lex": "lex-runtime-service", + "runtime.sagemaker": "sagemaker-runtime", + "sdb": "simpledb", + "secretsmanager": "secrets-manager", + "serverlessrepo": "serverlessapplicationrepository", + "servicecatalog": "service-catalog", + "states": "sfn", + "stepfunctions": "sfn", + "storagegateway": "storage-gateway", + "streams.dynamodb": "dynamodb-streams", + "tagging": "resource-groups-tagging-api", +} + + +# This pattern can be used to detect if a header is a flexible checksum header +CHECKSUM_HEADER_PATTERN = re.compile( + r'^X-Amz-Checksum-([a-z0-9]*)$', + flags=re.IGNORECASE, +) + +PRIORITY_ORDERED_SUPPORTED_PROTOCOLS = ( + 'json', + 'rest-json', + 'rest-xml', + 'smithy-rpc-v2-cbor', + 'query', + 'ec2', +) + + +def ensure_boolean(val): + """Ensures a boolean value if a string or boolean is provided + + For strings, the value for True/False is case insensitive + """ + if isinstance(val, bool): + return val + elif isinstance(val, str): + return val.lower() == 'true' + else: + return False + + +def resolve_imds_endpoint_mode(session): + """Resolving IMDS endpoint mode to either IPv6 or IPv4. + + ec2_metadata_service_endpoint_mode takes precedence over imds_use_ipv6. + """ + endpoint_mode = session.get_config_variable( + 'ec2_metadata_service_endpoint_mode' + ) + if endpoint_mode is not None: + lendpoint_mode = endpoint_mode.lower() + if lendpoint_mode not in METADATA_ENDPOINT_MODES: + error_msg_kwargs = { + 'mode': endpoint_mode, + 'valid_modes': METADATA_ENDPOINT_MODES, + } + raise InvalidIMDSEndpointModeError(**error_msg_kwargs) + return lendpoint_mode + elif session.get_config_variable('imds_use_ipv6'): + return 'ipv6' + return 'ipv4' + + +def is_json_value_header(shape): + """Determines if the provided shape is the special header type jsonvalue. + + :type shape: botocore.shape + :param shape: Shape to be inspected for the jsonvalue trait. + + :return: True if this type is a jsonvalue, False otherwise + :rtype: Bool + """ + return ( + hasattr(shape, 'serialization') + and shape.serialization.get('jsonvalue', False) + and shape.serialization.get('location') == 'header' + and shape.type_name == 'string' + ) + + +def has_header(header_name, headers): + """Case-insensitive check for header key.""" + if header_name is None: + return False + elif isinstance(headers, botocore.awsrequest.HeadersDict): + return header_name in headers + else: + return header_name.lower() in [key.lower() for key in headers.keys()] + + +def get_service_module_name(service_model): + """Returns the module name for a service + + This is the value used in both the documentation and client class name + """ + name = service_model.metadata.get( + 'serviceAbbreviation', + service_model.metadata.get( + 'serviceFullName', service_model.service_name + ), + ) + name = name.replace('Amazon', '') + name = name.replace('AWS', '') + name = re.sub(r'\W+', '', name) + return name + + +def normalize_url_path(path): + if not path: + return '/' + return remove_dot_segments(path) + + +def normalize_boolean(val): + """Returns None if val is None, otherwise ensure value + converted to boolean""" + if val is None: + return val + else: + return ensure_boolean(val) + + +def remove_dot_segments(url): + # RFC 3986, section 5.2.4 "Remove Dot Segments" + # Also, AWS services require consecutive slashes to be removed, + # so that's done here as well + if not url: + return '' + input_url = url.split('/') + output_list = [] + for x in input_url: + if x and x != '.': + if x == '..': + if output_list: + output_list.pop() + else: + output_list.append(x) + + if url[0] == '/': + first = '/' + else: + first = '' + if url[-1] == '/' and output_list: + last = '/' + else: + last = '' + return first + '/'.join(output_list) + last + + +def validate_jmespath_for_set(expression): + # Validates a limited jmespath expression to determine if we can set a + # value based on it. Only works with dotted paths. + if not expression or expression == '.': + raise InvalidExpressionError(expression=expression) + + for invalid in ['[', ']', '*']: + if invalid in expression: + raise InvalidExpressionError(expression=expression) + + +def set_value_from_jmespath(source, expression, value, is_first=True): + # This takes a (limited) jmespath-like expression & can set a value based + # on it. + # Limitations: + # * Only handles dotted lookups + # * No offsets/wildcards/slices/etc. + if is_first: + validate_jmespath_for_set(expression) + + bits = expression.split('.', 1) + current_key, remainder = bits[0], bits[1] if len(bits) > 1 else '' + + if not current_key: + raise InvalidExpressionError(expression=expression) + + if remainder: + if current_key not in source: + # We've got something in the expression that's not present in the + # source (new key). If there's any more bits, we'll set the key + # with an empty dictionary. + source[current_key] = {} + + return set_value_from_jmespath( + source[current_key], remainder, value, is_first=False + ) + + # If we're down to a single key, set it. + source[current_key] = value + + +def is_global_accesspoint(context): + """Determine if request is intended for an MRAP accesspoint.""" + s3_accesspoint = context.get('s3_accesspoint', {}) + is_global = s3_accesspoint.get('region') == '' + return is_global + + +def create_nested_client(session, service_name, **kwargs): + # If a client is created from within a plugin based on the environment variable, + # an infinite loop could arise. Any clients created from within another client + # must use this method to prevent infinite loops. + ctx = PluginContext(plugins="DISABLED") + token = set_plugin_context(ctx) + try: + return session.create_client(service_name, **kwargs) + finally: + reset_plugin_context(token) + + +class _RetriesExceededError(Exception): + """Internal exception used when the number of retries are exceeded.""" + + pass + + +class BadIMDSRequestError(Exception): + def __init__(self, request): + self.request = request + + +class IMDSFetcher: + _RETRIES_EXCEEDED_ERROR_CLS = _RetriesExceededError + _TOKEN_PATH = 'latest/api/token' + _TOKEN_TTL = '21600' + + def __init__( + self, + timeout=DEFAULT_METADATA_SERVICE_TIMEOUT, + num_attempts=1, + base_url=METADATA_BASE_URL, + env=None, + user_agent=None, + config=None, + ): + self._timeout = timeout + self._num_attempts = num_attempts + if config is None: + config = {} + self._base_url = self._select_base_url(base_url, config) + self._config = config + + if env is None: + env = os.environ.copy() + self._disabled = ( + env.get('AWS_EC2_METADATA_DISABLED', 'false').lower() == 'true' + ) + self._imds_v1_disabled = config.get('ec2_metadata_v1_disabled') + self._user_agent = user_agent + self._session = botocore.httpsession.URLLib3Session( + timeout=self._timeout, + proxies=get_environ_proxies(self._base_url), + ) + + def get_base_url(self): + return self._base_url + + def _select_base_url(self, base_url, config): + if config is None: + config = {} + + requires_ipv6 = ( + config.get('ec2_metadata_service_endpoint_mode') == 'ipv6' + ) + custom_metadata_endpoint = config.get('ec2_metadata_service_endpoint') + + if requires_ipv6 and custom_metadata_endpoint: + logger.warning( + "Custom endpoint and IMDS_USE_IPV6 are both set. Using custom endpoint." + ) + + chosen_base_url = None + + if base_url != METADATA_BASE_URL: + chosen_base_url = base_url + elif custom_metadata_endpoint: + chosen_base_url = custom_metadata_endpoint + elif requires_ipv6: + chosen_base_url = METADATA_BASE_URL_IPv6 + else: + chosen_base_url = METADATA_BASE_URL + + logger.debug("IMDS ENDPOINT: %s", chosen_base_url) + if not is_valid_uri(chosen_base_url): + raise InvalidIMDSEndpointError(endpoint=chosen_base_url) + + return chosen_base_url + + def _construct_url(self, path): + sep = '' + if self._base_url and not self._base_url.endswith('/'): + sep = '/' + return f'{self._base_url}{sep}{path}' + + def _fetch_metadata_token(self): + self._assert_enabled() + url = self._construct_url(self._TOKEN_PATH) + headers = { + 'x-aws-ec2-metadata-token-ttl-seconds': self._TOKEN_TTL, + } + self._add_user_agent(headers) + request = botocore.awsrequest.AWSRequest( + method='PUT', url=url, headers=headers + ) + for i in range(self._num_attempts): + try: + response = self._session.send(request.prepare()) + if response.status_code == 200: + return response.text + elif response.status_code in (404, 403, 405): + return None + elif response.status_code in (400,): + raise BadIMDSRequestError(request) + except ReadTimeoutError: + return None + except RETRYABLE_HTTP_ERRORS as e: + logger.debug( + "Caught retryable HTTP exception while making metadata " + "service request to %s: %s", + url, + e, + exc_info=True, + ) + except HTTPClientError as e: + if isinstance(e.kwargs.get('error'), LocationParseError): + raise InvalidIMDSEndpointError(endpoint=url, error=e) + else: + raise + return None + + def _get_request(self, url_path, retry_func, token=None): + """Make a get request to the Instance Metadata Service. + + :type url_path: str + :param url_path: The path component of the URL to make a get request. + This arg is appended to the base_url that was provided in the + initializer. + + :type retry_func: callable + :param retry_func: A function that takes the response as an argument + and determines if it needs to retry. By default empty and non + 200 OK responses are retried. + + :type token: str + :param token: Metadata token to send along with GET requests to IMDS. + """ + self._assert_enabled() + if not token: + self._assert_v1_enabled() + if retry_func is None: + retry_func = self._default_retry + url = self._construct_url(url_path) + headers = {} + if token is not None: + headers['x-aws-ec2-metadata-token'] = token + self._add_user_agent(headers) + for i in range(self._num_attempts): + try: + request = botocore.awsrequest.AWSRequest( + method='GET', url=url, headers=headers + ) + response = self._session.send(request.prepare()) + if not retry_func(response): + return response + except RETRYABLE_HTTP_ERRORS as e: + logger.debug( + "Caught retryable HTTP exception while making metadata " + "service request to %s: %s", + url, + e, + exc_info=True, + ) + raise self._RETRIES_EXCEEDED_ERROR_CLS() + + def _add_user_agent(self, headers): + if self._user_agent is not None: + headers['User-Agent'] = self._user_agent + + def _assert_enabled(self): + if self._disabled: + logger.debug("Access to EC2 metadata has been disabled.") + raise self._RETRIES_EXCEEDED_ERROR_CLS() + + def _assert_v1_enabled(self): + if self._imds_v1_disabled: + raise MetadataRetrievalError( + error_msg="Unable to retrieve token for use in IMDSv2 call and IMDSv1 has been disabled" + ) + + def _default_retry(self, response): + return self._is_non_ok_response(response) or self._is_empty(response) + + def _is_non_ok_response(self, response): + if response.status_code != 200: + self._log_imds_response(response, 'non-200', log_body=True) + return True + return False + + def _is_empty(self, response): + if not response.content: + self._log_imds_response(response, 'no body', log_body=True) + return True + return False + + def _log_imds_response(self, response, reason_to_log, log_body=False): + statement = ( + "Metadata service returned %s response " + "with status code of %s for url: %s" + ) + logger_args = [reason_to_log, response.status_code, response.url] + if log_body: + statement += ", content body: %s" + logger_args.append(response.content) + logger.debug(statement, *logger_args) + + +class InstanceMetadataFetcher(IMDSFetcher): + _URL_PATH = 'latest/meta-data/iam/security-credentials/' + _REQUIRED_CREDENTIAL_FIELDS = [ + 'AccessKeyId', + 'SecretAccessKey', + 'Token', + 'Expiration', + ] + + def retrieve_iam_role_credentials(self): + try: + token = self._fetch_metadata_token() + role_name = self._get_iam_role(token) + credentials = self._get_credentials(role_name, token) + if self._contains_all_credential_fields(credentials): + credentials = { + 'role_name': role_name, + 'access_key': credentials['AccessKeyId'], + 'secret_key': credentials['SecretAccessKey'], + 'token': credentials['Token'], + 'expiry_time': credentials['Expiration'], + } + self._evaluate_expiration(credentials) + return credentials + else: + # IMDS can return a 200 response that has a JSON formatted + # error message (i.e. if ec2 is not trusted entity for the + # attached role). We do not necessarily want to retry for + # these and we also do not necessarily want to raise a key + # error. So at least log the problematic response and return + # an empty dictionary to signal that it was not able to + # retrieve credentials. These error will contain both a + # Code and Message key. + if 'Code' in credentials and 'Message' in credentials: + logger.debug( + 'Error response received when retrieving' + 'credentials: %s.', + credentials, + ) + return {} + except self._RETRIES_EXCEEDED_ERROR_CLS: + logger.debug( + "Max number of attempts exceeded (%s) when " + "attempting to retrieve data from metadata service.", + self._num_attempts, + ) + except BadIMDSRequestError as e: + logger.debug("Bad IMDS request: %s", e.request) + return {} + + def _get_iam_role(self, token=None): + return self._get_request( + url_path=self._URL_PATH, + retry_func=self._needs_retry_for_role_name, + token=token, + ).text + + def _get_credentials(self, role_name, token=None): + r = self._get_request( + url_path=self._URL_PATH + role_name, + retry_func=self._needs_retry_for_credentials, + token=token, + ) + return json.loads(r.text) + + def _is_invalid_json(self, response): + try: + json.loads(response.text) + return False + except ValueError: + self._log_imds_response(response, 'invalid json') + return True + + def _needs_retry_for_role_name(self, response): + return self._is_non_ok_response(response) or self._is_empty(response) + + def _needs_retry_for_credentials(self, response): + return ( + self._is_non_ok_response(response) + or self._is_empty(response) + or self._is_invalid_json(response) + ) + + def _contains_all_credential_fields(self, credentials): + for field in self._REQUIRED_CREDENTIAL_FIELDS: + if field not in credentials: + logger.debug( + 'Retrieved credentials is missing required field: %s', + field, + ) + return False + return True + + def _evaluate_expiration(self, credentials): + expiration = credentials.get("expiry_time") + if expiration is None: + return + try: + expiration = datetime.datetime.strptime( + expiration, "%Y-%m-%dT%H:%M:%SZ" + ) + refresh_interval = self._config.get( + "ec2_credential_refresh_window", 60 * 10 + ) + jitter = random.randint(120, 600) # Between 2 to 10 minutes + refresh_interval_with_jitter = refresh_interval + jitter + current_time = get_current_datetime() + refresh_offset = datetime.timedelta( + seconds=refresh_interval_with_jitter + ) + extension_time = expiration - refresh_offset + if current_time >= extension_time: + new_time = current_time + refresh_offset + credentials["expiry_time"] = new_time.strftime( + "%Y-%m-%dT%H:%M:%SZ" + ) + logger.info( + "Attempting credential expiration extension due to a " + "credential service availability issue. A refresh of " + "these credentials will be attempted again within " + "the next %.0f minutes.", + refresh_interval_with_jitter / 60, + ) + except ValueError: + logger.debug( + "Unable to parse expiry_time in %s", credentials['expiry_time'] + ) + + +class IMDSRegionProvider: + def __init__(self, session, environ=None, fetcher=None): + """Initialize IMDSRegionProvider. + :type session: :class:`botocore.session.Session` + :param session: The session is needed to look up configuration for + how to contact the instance metadata service. Specifically the + whether or not it should use the IMDS region at all, and if so how + to configure the timeout and number of attempts to reach the + service. + :type environ: None or dict + :param environ: A dictionary of environment variables to use. If + ``None`` is the argument then ``os.environ`` will be used by + default. + :type fecther: :class:`botocore.utils.InstanceMetadataRegionFetcher` + :param fetcher: The class to actually handle the fetching of the region + from the IMDS. If not provided a default one will be created. + """ + self._session = session + if environ is None: + environ = os.environ + self._environ = environ + self._fetcher = fetcher + + def provide(self): + """Provide the region value from IMDS.""" + instance_region = self._get_instance_metadata_region() + return instance_region + + def _get_instance_metadata_region(self): + fetcher = self._get_fetcher() + region = fetcher.retrieve_region() + return region + + def _get_fetcher(self): + if self._fetcher is None: + self._fetcher = self._create_fetcher() + return self._fetcher + + def _create_fetcher(self): + metadata_timeout = self._session.get_config_variable( + 'metadata_service_timeout' + ) + metadata_num_attempts = self._session.get_config_variable( + 'metadata_service_num_attempts' + ) + imds_config = { + 'ec2_metadata_service_endpoint': self._session.get_config_variable( + 'ec2_metadata_service_endpoint' + ), + 'ec2_metadata_service_endpoint_mode': resolve_imds_endpoint_mode( + self._session + ), + 'ec2_metadata_v1_disabled': self._session.get_config_variable( + 'ec2_metadata_v1_disabled' + ), + } + fetcher = InstanceMetadataRegionFetcher( + timeout=metadata_timeout, + num_attempts=metadata_num_attempts, + env=self._environ, + user_agent=self._session.user_agent(), + config=imds_config, + ) + return fetcher + + +class InstanceMetadataRegionFetcher(IMDSFetcher): + _URL_PATH = 'latest/meta-data/placement/availability-zone/' + + def retrieve_region(self): + """Get the current region from the instance metadata service. + :rvalue: str + :returns: The region the current instance is running in or None + if the instance metadata service cannot be contacted or does not + give a valid response. + :rtype: None or str + :returns: Returns the region as a string if it is configured to use + IMDS as a region source. Otherwise returns ``None``. It will also + return ``None`` if it fails to get the region from IMDS due to + exhausting its retries or not being able to connect. + """ + try: + region = self._get_region() + return region + except self._RETRIES_EXCEEDED_ERROR_CLS: + logger.debug( + "Max number of attempts exceeded (%s) when " + "attempting to retrieve data from metadata service.", + self._num_attempts, + ) + return None + + def _get_region(self): + token = self._fetch_metadata_token() + response = self._get_request( + url_path=self._URL_PATH, + retry_func=self._default_retry, + token=token, + ) + availability_zone = response.text + region = availability_zone[:-1] + return region + + +def merge_dicts(dict1, dict2, append_lists=False): + """Given two dict, merge the second dict into the first. + + The dicts can have arbitrary nesting. + + :param append_lists: If true, instead of clobbering a list with the new + value, append all of the new values onto the original list. + """ + for key in dict2: + if isinstance(dict2[key], dict): + if key in dict1 and key in dict2: + merge_dicts(dict1[key], dict2[key]) + else: + dict1[key] = dict2[key] + # If the value is a list and the ``append_lists`` flag is set, + # append the new values onto the original list + elif isinstance(dict2[key], list) and append_lists: + # The value in dict1 must be a list in order to append new + # values onto it. + if key in dict1 and isinstance(dict1[key], list): + dict1[key].extend(dict2[key]) + else: + dict1[key] = dict2[key] + else: + # At scalar types, we iterate and merge the + # current dict that we're on. + dict1[key] = dict2[key] + + +def lowercase_dict(original): + """Copies the given dictionary ensuring all keys are lowercase strings.""" + copy = {} + for key in original: + copy[key.lower()] = original[key] + return copy + + +def parse_key_val_file(filename, _open=open): + try: + with _open(filename) as f: + contents = f.read() + return parse_key_val_file_contents(contents) + except OSError: + raise ConfigNotFound(path=filename) + + +def parse_key_val_file_contents(contents): + # This was originally extracted from the EC2 credential provider, which was + # fairly lenient in its parsing. We only try to parse key/val pairs if + # there's a '=' in the line. + final = {} + for line in contents.splitlines(): + if '=' not in line: + continue + key, val = line.split('=', 1) + key = key.strip() + val = val.strip() + final[key] = val + return final + + +def percent_encode_sequence(mapping, safe=SAFE_CHARS): + """Urlencode a dict or list into a string. + + This is similar to urllib.urlencode except that: + + * It uses quote, and not quote_plus + * It has a default list of safe chars that don't need + to be encoded, which matches what AWS services expect. + + If any value in the input ``mapping`` is a list type, + then each list element wil be serialized. This is the equivalent + to ``urlencode``'s ``doseq=True`` argument. + + This function should be preferred over the stdlib + ``urlencode()`` function. + + :param mapping: Either a dict to urlencode or a list of + ``(key, value)`` pairs. + + """ + encoded_pairs = [] + if hasattr(mapping, 'items'): + pairs = mapping.items() + else: + pairs = mapping + for key, value in pairs: + if isinstance(value, list): + for element in value: + encoded_pairs.append( + f'{percent_encode(key)}={percent_encode(element)}' + ) + else: + encoded_pairs.append( + f'{percent_encode(key)}={percent_encode(value)}' + ) + return '&'.join(encoded_pairs) + + +def percent_encode(input_str, safe=SAFE_CHARS): + """Urlencodes a string. + + Whereas percent_encode_sequence handles taking a dict/sequence and + producing a percent encoded string, this function deals only with + taking a string (not a dict/sequence) and percent encoding it. + + If given the binary type, will simply URL encode it. If given the + text type, will produce the binary type by UTF-8 encoding the + text. If given something else, will convert it to the text type + first. + """ + # If its not a binary or text string, make it a text string. + if not isinstance(input_str, (bytes, str)): + input_str = str(input_str) + # If it's not bytes, make it bytes by UTF-8 encoding it. + if not isinstance(input_str, bytes): + input_str = input_str.encode('utf-8') + return quote(input_str, safe=safe) + + +def _epoch_seconds_to_datetime(value, tzinfo): + """Parse numerical epoch timestamps (seconds since 1970) into a + ``datetime.datetime`` in UTC using ``datetime.timedelta``. This is intended + as fallback when ``fromtimestamp`` raises ``OverflowError`` or ``OSError``. + + :type value: float or int + :param value: The Unix timestamps as number. + + :type tzinfo: callable + :param tzinfo: A ``datetime.tzinfo`` class or compatible callable. + """ + epoch_zero = datetime.datetime(1970, 1, 1, 0, 0, 0, tzinfo=tzutc()) + epoch_zero_localized = epoch_zero.astimezone(tzinfo()) + return epoch_zero_localized + datetime.timedelta(seconds=value) + + +def _parse_timestamp_with_tzinfo(value, tzinfo): + """Parse timestamp with pluggable tzinfo options.""" + if isinstance(value, (int, float)): + # Possibly an epoch time. + return datetime.datetime.fromtimestamp(value, tzinfo()) + else: + try: + return datetime.datetime.fromtimestamp(float(value), tzinfo()) + except (TypeError, ValueError): + pass + try: + # In certain cases, a timestamp marked with GMT can be parsed into a + # different time zone, so here we provide a context which will + # enforce that GMT == UTC. + return dateutil.parser.parse(value, tzinfos={'GMT': tzutc()}) + except (TypeError, ValueError) as e: + raise ValueError(f'Invalid timestamp "{value}": {e}') + + +def parse_timestamp(value): + """Parse a timestamp into a datetime object. + + Supported formats: + + * iso8601 + * rfc822 + * epoch (value is an integer) + + This will return a ``datetime.datetime`` object. + + """ + tzinfo_options = get_tzinfo_options() + for tzinfo in tzinfo_options: + try: + return _parse_timestamp_with_tzinfo(value, tzinfo) + except (OSError, OverflowError) as e: + logger.debug( + 'Unable to parse timestamp with "%s" timezone info.', + tzinfo.__name__, + exc_info=e, + ) + # For numeric values attempt fallback to using fromtimestamp-free method. + # From Python's ``datetime.datetime.fromtimestamp`` documentation: "This + # may raise ``OverflowError``, if the timestamp is out of the range of + # values supported by the platform C localtime() function, and ``OSError`` + # on localtime() failure. It's common for this to be restricted to years + # from 1970 through 2038." + try: + numeric_value = float(value) + except (TypeError, ValueError): + pass + else: + try: + for tzinfo in tzinfo_options: + return _epoch_seconds_to_datetime(numeric_value, tzinfo=tzinfo) + except (OSError, OverflowError) as e: + logger.debug( + 'Unable to parse timestamp using fallback method with "%s" ' + 'timezone info.', + tzinfo.__name__, + exc_info=e, + ) + raise RuntimeError( + f'Unable to calculate correct timezone offset for "{value}"' + ) + + +def parse_to_aware_datetime(value): + """Converted the passed in value to a datetime object with tzinfo. + + This function can be used to normalize all timestamp inputs. This + function accepts a number of different types of inputs, but + will always return a datetime.datetime object with time zone + information. + + The input param ``value`` can be one of several types: + + * A datetime object (both naive and aware) + * An integer representing the epoch time (can also be a string + of the integer, i.e '0', instead of 0). The epoch time is + considered to be UTC. + * An iso8601 formatted timestamp. This does not need to be + a complete timestamp, it can contain just the date portion + without the time component. + + The returned value will be a datetime object that will have tzinfo. + If no timezone info was provided in the input value, then UTC is + assumed, not local time. + + """ + # This is a general purpose method that handles several cases of + # converting the provided value to a string timestamp suitable to be + # serialized to an http request. It can handle: + # 1) A datetime.datetime object. + if isinstance(value, _DatetimeClass): + datetime_obj = value + else: + # 2) A string object that's formatted as a timestamp. + # We document this as being an iso8601 timestamp, although + # parse_timestamp is a bit more flexible. + datetime_obj = parse_timestamp(value) + if datetime_obj.tzinfo is None: + # I think a case would be made that if no time zone is provided, + # we should use the local time. However, to restore backwards + # compat, the previous behavior was to assume UTC, which is + # what we're going to do here. + datetime_obj = datetime_obj.replace(tzinfo=tzutc()) + else: + datetime_obj = datetime_obj.astimezone(tzutc()) + return datetime_obj + + +def datetime2timestamp(dt, default_timezone=None): + """Calculate the timestamp based on the given datetime instance. + + :type dt: datetime + :param dt: A datetime object to be converted into timestamp + :type default_timezone: tzinfo + :param default_timezone: If it is provided as None, we treat it as tzutc(). + But it is only used when dt is a naive datetime. + :returns: The timestamp + """ + epoch = datetime.datetime(1970, 1, 1) + if dt.tzinfo is None: + if default_timezone is None: + default_timezone = tzutc() + dt = dt.replace(tzinfo=default_timezone) + d = dt.replace(tzinfo=None) - dt.utcoffset() - epoch + return d.total_seconds() + + +def calculate_sha256(body, as_hex=False): + """Calculate a sha256 checksum. + + This method will calculate the sha256 checksum of a file like + object. Note that this method will iterate through the entire + file contents. The caller is responsible for ensuring the proper + starting position of the file and ``seek()``'ing the file back + to its starting location if other consumers need to read from + the file like object. + + :param body: Any file like object. The file must be opened + in binary mode such that a ``.read()`` call returns bytes. + :param as_hex: If True, then the hex digest is returned. + If False, then the digest (as binary bytes) is returned. + + :returns: The sha256 checksum + + """ + checksum = hashlib.sha256() + for chunk in iter(lambda: body.read(1024 * 1024), b''): + checksum.update(chunk) + if as_hex: + return checksum.hexdigest() + else: + return checksum.digest() + + +def calculate_tree_hash(body): + """Calculate a tree hash checksum. + + For more information see: + + http://docs.aws.amazon.com/amazonglacier/latest/dev/checksum-calculations.html + + :param body: Any file like object. This has the same constraints as + the ``body`` param in calculate_sha256 + + :rtype: str + :returns: The hex version of the calculated tree hash + + """ + chunks = [] + required_chunk_size = 1024 * 1024 + sha256 = hashlib.sha256 + for chunk in iter(lambda: body.read(required_chunk_size), b''): + chunks.append(sha256(chunk).digest()) + if not chunks: + return sha256(b'').hexdigest() + while len(chunks) > 1: + new_chunks = [] + for first, second in _in_pairs(chunks): + if second is not None: + new_chunks.append(sha256(first + second).digest()) + else: + # We're at the end of the list and there's no pair left. + new_chunks.append(first) + chunks = new_chunks + return binascii.hexlify(chunks[0]).decode('ascii') + + +def _in_pairs(iterable): + # Creates iterator that iterates over the list in pairs: + # for a, b in _in_pairs([0, 1, 2, 3, 4]): + # print(a, b) + # + # will print: + # 0, 1 + # 2, 3 + # 4, None + shared_iter = iter(iterable) + # Note that zip_longest is a compat import that uses + # the itertools izip_longest. This creates an iterator, + # this call below does _not_ immediately create the list + # of pairs. + return zip_longest(shared_iter, shared_iter) + + +class CachedProperty: + """A read only property that caches the initially computed value. + + This descriptor will only call the provided ``fget`` function once. + Subsequent access to this property will return the cached value. + + """ + + def __init__(self, fget): + self._fget = fget + + def __get__(self, obj, cls): + if obj is None: + return self + else: + computed_value = self._fget(obj) + obj.__dict__[self._fget.__name__] = computed_value + return computed_value + + +class ArgumentGenerator: + """Generate sample input based on a shape model. + + This class contains a ``generate_skeleton`` method that will take + an input/output shape (created from ``botocore.model``) and generate + a sample dictionary corresponding to the input/output shape. + + The specific values used are place holder values. For strings either an + empty string or the member name can be used, for numbers 0 or 0.0 is used. + The intended usage of this class is to generate the *shape* of the input + structure. + + This can be useful for operations that have complex input shapes. + This allows a user to just fill in the necessary data instead of + worrying about the specific structure of the input arguments. + + Example usage:: + + s = botocore.session.get_session() + ddb = s.get_service_model('dynamodb') + arg_gen = ArgumentGenerator() + sample_input = arg_gen.generate_skeleton( + ddb.operation_model('CreateTable').input_shape) + print("Sample input for dynamodb.CreateTable: %s" % sample_input) + + """ + + def __init__(self, use_member_names=False): + self._use_member_names = use_member_names + + def generate_skeleton(self, shape): + """Generate a sample input. + + :type shape: ``botocore.model.Shape`` + :param shape: The input shape. + + :return: The generated skeleton input corresponding to the + provided input shape. + + """ + stack = [] + return self._generate_skeleton(shape, stack) + + def _generate_skeleton(self, shape, stack, name=''): + stack.append(shape.name) + try: + if shape.type_name == 'structure': + return self._generate_type_structure(shape, stack) + elif shape.type_name == 'list': + return self._generate_type_list(shape, stack) + elif shape.type_name == 'map': + return self._generate_type_map(shape, stack) + elif shape.type_name == 'string': + if self._use_member_names: + return name + if shape.enum: + return random.choice(shape.enum) + return '' + elif shape.type_name in ['integer', 'long']: + return 0 + elif shape.type_name in ['float', 'double']: + return 0.0 + elif shape.type_name == 'boolean': + return True + elif shape.type_name == 'timestamp': + return datetime.datetime(1970, 1, 1, 0, 0, 0) + finally: + stack.pop() + + def _generate_type_structure(self, shape, stack): + if stack.count(shape.name) > 1: + return {} + skeleton = OrderedDict() + for member_name, member_shape in shape.members.items(): + skeleton[member_name] = self._generate_skeleton( + member_shape, stack, name=member_name + ) + return skeleton + + def _generate_type_list(self, shape, stack): + # For list elements we've arbitrarily decided to + # return two elements for the skeleton list. + name = '' + if self._use_member_names: + name = shape.member.name + return [ + self._generate_skeleton(shape.member, stack, name), + ] + + def _generate_type_map(self, shape, stack): + key_shape = shape.key + value_shape = shape.value + assert key_shape.type_name == 'string' + return OrderedDict( + [ + ('KeyName', self._generate_skeleton(value_shape, stack)), + ] + ) + + +def is_valid_ipv6_endpoint_url(endpoint_url): + if UNSAFE_URL_CHARS.intersection(endpoint_url): + return False + hostname = f'[{urlparse(endpoint_url).hostname}]' + return IPV6_ADDRZ_RE.match(hostname) is not None + + +def is_valid_ipv4_endpoint_url(endpoint_url): + hostname = urlparse(endpoint_url).hostname + return IPV4_RE.match(hostname) is not None + + +def is_valid_endpoint_url(endpoint_url): + """Verify the endpoint_url is valid. + + :type endpoint_url: string + :param endpoint_url: An endpoint_url. Must have at least a scheme + and a hostname. + + :return: True if the endpoint url is valid. False otherwise. + + """ + # post-bpo-43882 urlsplit() strips unsafe characters from URL, causing + # it to pass hostname validation below. Detect them early to fix that. + if UNSAFE_URL_CHARS.intersection(endpoint_url): + return False + parts = urlsplit(endpoint_url) + hostname = parts.hostname + if hostname is None: + return False + if len(hostname) > 255: + return False + if hostname[-1] == ".": + hostname = hostname[:-1] + allowed = re.compile( + r"^((?!-)[A-Z\d-]{1,63}(? 63: + # Wrong length + return False + match = LABEL_RE.match(bucket_name) + if match is None or match.end() != len(bucket_name): + return False + return True + + +def fix_s3_host( + request, + signature_version, + region_name, + default_endpoint_url=None, + **kwargs, +): + """ + This handler looks at S3 requests just before they are signed. + If there is a bucket name on the path (true for everything except + ListAllBuckets) it checks to see if that bucket name conforms to + the DNS naming conventions. If it does, it alters the request to + use ``virtual hosting`` style addressing rather than ``path-style`` + addressing. + + """ + if request.context.get('use_global_endpoint', False): + default_endpoint_url = 's3.amazonaws.com' + try: + switch_to_virtual_host_style( + request, signature_version, default_endpoint_url + ) + except InvalidDNSNameError as e: + bucket_name = e.kwargs['bucket_name'] + logger.debug( + 'Not changing URI, bucket is not DNS compatible: %s', bucket_name + ) + + +def switch_to_virtual_host_style( + request, signature_version, default_endpoint_url=None, **kwargs +): + """ + This is a handler to force virtual host style s3 addressing no matter + the signature version (which is taken in consideration for the default + case). If the bucket is not DNS compatible an InvalidDNSName is thrown. + + :param request: A AWSRequest object that is about to be sent. + :param signature_version: The signature version to sign with + :param default_endpoint_url: The endpoint to use when switching to a + virtual style. If None is supplied, the virtual host will be + constructed from the url of the request. + """ + if request.auth_path is not None: + # The auth_path has already been applied (this may be a + # retried request). We don't need to perform this + # customization again. + return + elif _is_get_bucket_location_request(request): + # For the GetBucketLocation response, we should not be using + # the virtual host style addressing so we can avoid any sigv4 + # issues. + logger.debug( + "Request is GetBucketLocation operation, not checking " + "for DNS compatibility." + ) + return + parts = urlsplit(request.url) + request.auth_path = parts.path + path_parts = parts.path.split('/') + + # Retrieve what the endpoint we will be prepending the bucket name to. + if default_endpoint_url is None: + default_endpoint_url = parts.netloc + + if len(path_parts) > 1: + bucket_name = path_parts[1] + if not bucket_name: + # If the bucket name is empty we should not be checking for + # dns compatibility. + return + logger.debug('Checking for DNS compatible bucket for: %s', request.url) + if check_dns_name(bucket_name): + # If the operation is on a bucket, the auth_path must be + # terminated with a '/' character. + if len(path_parts) == 2: + if request.auth_path[-1] != '/': + request.auth_path += '/' + path_parts.remove(bucket_name) + # At the very least the path must be a '/', such as with the + # CreateBucket operation when DNS style is being used. If this + # is not used you will get an empty path which is incorrect. + path = '/'.join(path_parts) or '/' + global_endpoint = default_endpoint_url + host = bucket_name + '.' + global_endpoint + new_tuple = (parts.scheme, host, path, parts.query, '') + new_uri = urlunsplit(new_tuple) + request.url = new_uri + logger.debug('URI updated to: %s', new_uri) + else: + raise InvalidDNSNameError(bucket_name=bucket_name) + + +def _is_get_bucket_location_request(request): + return request.url.endswith('?location') + + +def instance_cache(func): + """Method decorator for caching method calls to a single instance. + + **This is not a general purpose caching decorator.** + + In order to use this, you *must* provide an ``_instance_cache`` + attribute on the instance. + + This decorator is used to cache method calls. The cache is only + scoped to a single instance though such that multiple instances + will maintain their own cache. In order to keep things simple, + this decorator requires that you provide an ``_instance_cache`` + attribute on your instance. + + """ + func_name = func.__name__ + + @functools.wraps(func) + def _cache_guard(self, *args, **kwargs): + cache_key = (func_name, args) + if kwargs: + kwarg_items = tuple(sorted(kwargs.items())) + cache_key = (func_name, args, kwarg_items) + result = self._instance_cache.get(cache_key) + if result is not None: + return result + result = func(self, *args, **kwargs) + self._instance_cache[cache_key] = result + return result + + return _cache_guard + + +def lru_cache_weakref(*cache_args, **cache_kwargs): + """ + Version of functools.lru_cache that stores a weak reference to ``self``. + + Serves the same purpose as :py:func:`instance_cache` but uses Python's + functools implementation which offers ``max_size`` and ``typed`` properties. + + lru_cache is a global cache even when used on a method. The cache's + reference to ``self`` will prevent garbage collection of the object. This + wrapper around functools.lru_cache replaces the reference to ``self`` with + a weak reference to not interfere with garbage collection. + """ + + def wrapper(func): + @functools.lru_cache(*cache_args, **cache_kwargs) + def func_with_weakref(weakref_to_self, *args, **kwargs): + return func(weakref_to_self(), *args, **kwargs) + + @functools.wraps(func) + def inner(self, *args, **kwargs): + for kwarg_key, kwarg_value in kwargs.items(): + if isinstance(kwarg_value, list): + kwargs[kwarg_key] = tuple(kwarg_value) + return func_with_weakref(weakref.ref(self), *args, **kwargs) + + inner.cache_info = func_with_weakref.cache_info + return inner + + return wrapper + + +def switch_host_s3_accelerate(request, operation_name, **kwargs): + """Switches the current s3 endpoint with an S3 Accelerate endpoint""" + + # Note that when registered the switching of the s3 host happens + # before it gets changed to virtual. So we are not concerned with ensuring + # that the bucket name is translated to the virtual style here and we + # can hard code the Accelerate endpoint. + parts = urlsplit(request.url).netloc.split('.') + parts = [p for p in parts if p in S3_ACCELERATE_WHITELIST] + endpoint = 'https://s3-accelerate.' + if len(parts) > 0: + endpoint += '.'.join(parts) + '.' + endpoint += 'amazonaws.com' + + if operation_name in ['ListBuckets', 'CreateBucket', 'DeleteBucket']: + return + _switch_hosts(request, endpoint, use_new_scheme=False) + + +def switch_host_with_param(request, param_name): + """Switches the host using a parameter value from a JSON request body""" + request_json = json.loads(request.data.decode('utf-8')) + if request_json.get(param_name): + new_endpoint = request_json[param_name] + _switch_hosts(request, new_endpoint) + + +def _switch_hosts(request, new_endpoint, use_new_scheme=True): + final_endpoint = _get_new_endpoint( + request.url, new_endpoint, use_new_scheme + ) + request.url = final_endpoint + + +def _get_new_endpoint(original_endpoint, new_endpoint, use_new_scheme=True): + new_endpoint_components = urlsplit(new_endpoint) + original_endpoint_components = urlsplit(original_endpoint) + scheme = original_endpoint_components.scheme + if use_new_scheme: + scheme = new_endpoint_components.scheme + final_endpoint_components = ( + scheme, + new_endpoint_components.netloc, + original_endpoint_components.path, + original_endpoint_components.query, + '', + ) + final_endpoint = urlunsplit(final_endpoint_components) + logger.debug( + 'Updating URI from %s to %s', original_endpoint, final_endpoint + ) + return final_endpoint + + +def deep_merge(base, extra): + """Deeply two dictionaries, overriding existing keys in the base. + + :param base: The base dictionary which will be merged into. + :param extra: The dictionary to merge into the base. Keys from this + dictionary will take precedence. + """ + for key in extra: + # If the key represents a dict on both given dicts, merge the sub-dicts + if ( + key in base + and isinstance(base[key], dict) + and isinstance(extra[key], dict) + ): + deep_merge(base[key], extra[key]) + continue + + # Otherwise, set the key on the base to be the value of the extra. + base[key] = extra[key] + + +def hyphenize_service_id(service_id): + """Translate the form used for event emitters. + + :param service_id: The service_id to convert. + """ + return service_id.replace(' ', '-').lower() + + +class IdentityCache: + """Base IdentityCache implementation for storing and retrieving + highly accessed credentials. + + This class is not intended to be instantiated in user code. + """ + + METHOD = "base_identity_cache" + + def __init__(self, client, credential_cls): + self._client = client + self._credential_cls = credential_cls + + def get_credentials(self, **kwargs): + callback = self.build_refresh_callback(**kwargs) + metadata = callback() + credential_entry = self._credential_cls.create_from_metadata( + metadata=metadata, + refresh_using=callback, + method=self.METHOD, + advisory_timeout=45, + mandatory_timeout=10, + ) + return credential_entry + + def build_refresh_callback(**kwargs): + """Callback to be implemented by subclasses. + + Returns a set of metadata to be converted into a new + credential instance. + """ + raise NotImplementedError() + + +class S3ExpressIdentityCache(IdentityCache): + """S3Express IdentityCache for retrieving and storing + credentials from CreateSession calls. + + This class is not intended to be instantiated in user code. + """ + + METHOD = "s3express" + + def __init__(self, client, credential_cls): + self._client = client + self._credential_cls = credential_cls + + @functools.lru_cache(maxsize=100) + def get_credentials(self, bucket): + return super().get_credentials(bucket=bucket) + + def build_refresh_callback(self, bucket): + def refresher(): + response = self._client.create_session(Bucket=bucket) + creds = response['Credentials'] + expiration = self._serialize_if_needed( + creds['Expiration'], iso=True + ) + return { + "access_key": creds['AccessKeyId'], + "secret_key": creds['SecretAccessKey'], + "token": creds['SessionToken'], + "expiry_time": expiration, + } + + return refresher + + def _serialize_if_needed(self, value, iso=False): + if isinstance(value, _DatetimeClass): + if iso: + return value.isoformat() + return value.strftime('%Y-%m-%dT%H:%M:%S%Z') + return value + + +class S3ExpressIdentityResolver: + def __init__(self, client, credential_cls, cache=None): + self._client = weakref.proxy(client) + + if cache is None: + cache = S3ExpressIdentityCache(self._client, credential_cls) + self._cache = cache + + def register(self, event_emitter=None): + logger.debug('Registering S3Express Identity Resolver') + emitter = event_emitter or self._client.meta.events + emitter.register('before-call.s3', self.apply_signing_cache_key) + emitter.register('before-sign.s3', self.resolve_s3express_identity) + + def apply_signing_cache_key(self, params, context, **kwargs): + endpoint_properties = context.get('endpoint_properties', {}) + backend = endpoint_properties.get('backend', None) + + # Add cache key if Bucket supplied for s3express request + bucket_name = context.get('input_params', {}).get('Bucket') + if backend == 'S3Express' and bucket_name is not None: + context.setdefault('signing', {}) + context['signing']['cache_key'] = bucket_name + + def resolve_s3express_identity( + self, + request, + signing_name, + region_name, + signature_version, + request_signer, + operation_name, + **kwargs, + ): + signing_context = request.context.get('signing', {}) + signing_name = signing_context.get('signing_name') + if signing_name == 's3express' and signature_version.startswith( + 'v4-s3express' + ): + signing_context['identity_cache'] = self._cache + if 'cache_key' not in signing_context: + signing_context['cache_key'] = ( + request.context.get('s3_redirect', {}) + .get('params', {}) + .get('Bucket') + ) + + +class S3RegionRedirectorv2: + """Updated version of S3RegionRedirector for use when + EndpointRulesetResolver is in use for endpoint resolution. + + This class is considered private and subject to abrupt breaking changes or + removal without prior announcement. Please do not use it directly. + """ + + def __init__(self, endpoint_bridge, client, cache=None): + self._cache = cache or {} + self._client = weakref.proxy(client) + + def register(self, event_emitter=None): + logger.debug('Registering S3 region redirector handler') + emitter = event_emitter or self._client.meta.events + emitter.register('needs-retry.s3', self.redirect_from_error) + emitter.register( + 'before-parameter-build.s3', self.annotate_request_context + ) + emitter.register( + 'before-endpoint-resolution.s3', self.redirect_from_cache + ) + + def redirect_from_error(self, request_dict, response, operation, **kwargs): + """ + An S3 request sent to the wrong region will return an error that + contains the endpoint the request should be sent to. This handler + will add the redirect information to the signing context and then + redirect the request. + """ + if response is None: + # This could be none if there was a ConnectionError or other + # transport error. + return + + redirect_ctx = request_dict.get('context', {}).get('s3_redirect', {}) + if ArnParser.is_arn(redirect_ctx.get('bucket')): + logger.debug( + 'S3 request was previously for an Accesspoint ARN, not ' + 'redirecting.' + ) + return + + if redirect_ctx.get('redirected'): + logger.debug( + 'S3 request was previously redirected, not redirecting.' + ) + return + + error = response[1].get('Error', {}) + error_code = error.get('Code') + response_metadata = response[1].get('ResponseMetadata', {}) + + # We have to account for 400 responses because + # if we sign a Head* request with the wrong region, + # we'll get a 400 Bad Request but we won't get a + # body saying it's an "AuthorizationHeaderMalformed". + is_special_head_object = ( + error_code in ('301', '400') and operation.name == 'HeadObject' + ) + is_special_head_bucket = ( + error_code in ('301', '400') + and operation.name == 'HeadBucket' + and 'x-amz-bucket-region' + in response_metadata.get('HTTPHeaders', {}) + ) + is_wrong_signing_region = ( + error_code == 'AuthorizationHeaderMalformed' and 'Region' in error + ) + is_redirect_status = response[0] is not None and response[ + 0 + ].status_code in (301, 302, 307) + is_permanent_redirect = error_code == 'PermanentRedirect' + is_opt_in_region_redirect = ( + error_code == 'IllegalLocationConstraintException' + and operation.name != 'CreateBucket' + ) + if not any( + [ + is_special_head_object, + is_wrong_signing_region, + is_permanent_redirect, + is_special_head_bucket, + is_redirect_status, + is_opt_in_region_redirect, + ] + ): + return + + bucket = request_dict['context']['s3_redirect']['bucket'] + client_region = request_dict['context'].get('client_region') + new_region = self.get_bucket_region(bucket, response) + + if new_region is None: + logger.debug( + "S3 client configured for region %s but the " + "bucket %s is not in that region and the proper region " + "could not be automatically determined.", + client_region, + bucket, + ) + return + + logger.debug( + "S3 client configured for region %s but the bucket %s " + "is in region %s; Please configure the proper region to " + "avoid multiple unnecessary redirects and signing attempts.", + client_region, + bucket, + new_region, + ) + # Adding the new region to _cache will make construct_endpoint() to + # use the new region as value for the AWS::Region builtin parameter. + self._cache[bucket] = new_region + + # Re-resolve endpoint with new region and modify request_dict with + # the new URL, auth scheme, and signing context. + ep_resolver = self._client._ruleset_resolver + ep_info = ep_resolver.construct_endpoint( + operation_model=operation, + call_args=request_dict['context']['s3_redirect']['params'], + request_context=request_dict['context'], + ) + request_dict['url'] = self.set_request_url( + request_dict['url'], ep_info.url + ) + request_dict['context']['s3_redirect']['redirected'] = True + auth_schemes = ep_info.properties.get('authSchemes') + if auth_schemes is not None: + auth_info = ep_resolver.auth_schemes_to_signing_ctx(auth_schemes) + auth_type, signing_context = auth_info + request_dict['context']['auth_type'] = auth_type + request_dict['context']['signing'] = { + **request_dict['context'].get('signing', {}), + **signing_context, + } + + # Return 0 so it doesn't wait to retry + return 0 + + def get_bucket_region(self, bucket, response): + """ + There are multiple potential sources for the new region to redirect to, + but they aren't all universally available for use. This will try to + find region from response elements, but will fall back to calling + HEAD on the bucket if all else fails. + + :param bucket: The bucket to find the region for. This is necessary if + the region is not available in the error response. + :param response: A response representing a service request that failed + due to incorrect region configuration. + """ + # First try to source the region from the headers. + service_response = response[1] + response_headers = service_response['ResponseMetadata']['HTTPHeaders'] + if 'x-amz-bucket-region' in response_headers: + return response_headers['x-amz-bucket-region'] + + # Next, check the error body + region = service_response.get('Error', {}).get('Region', None) + if region is not None: + return region + + # Finally, HEAD the bucket. No other choice sadly. + try: + response = self._client.head_bucket(Bucket=bucket) + headers = response['ResponseMetadata']['HTTPHeaders'] + except ClientError as e: + headers = e.response['ResponseMetadata']['HTTPHeaders'] + + region = headers.get('x-amz-bucket-region', None) + return region + + def set_request_url(self, old_url, new_endpoint, **kwargs): + """ + Splice a new endpoint into an existing URL. Note that some endpoints + from the the endpoint provider have a path component which will be + discarded by this function. + """ + return _get_new_endpoint(old_url, new_endpoint, False) + + def redirect_from_cache(self, builtins, params, **kwargs): + """ + If a bucket name has been redirected before, it is in the cache. This + handler will update the AWS::Region endpoint resolver builtin param + to use the region from cache instead of the client region to avoid the + redirect. + """ + bucket = params.get('Bucket') + if bucket is not None and bucket in self._cache: + new_region = self._cache.get(bucket) + builtins['AWS::Region'] = new_region + + def annotate_request_context(self, params, context, **kwargs): + """Store the bucket name in context for later use when redirecting. + The bucket name may be an access point ARN or alias. + """ + bucket = params.get('Bucket') + context['s3_redirect'] = { + 'redirected': False, + 'bucket': bucket, + 'params': params, + } + + +class S3RegionRedirector: + """This handler has been replaced by S3RegionRedirectorv2. The original + version remains in place for any third-party libraries that import it. + """ + + def __init__(self, endpoint_bridge, client, cache=None): + self._endpoint_resolver = endpoint_bridge + self._cache = cache + if self._cache is None: + self._cache = {} + + # This needs to be a weak ref in order to prevent memory leaks on + # python 2.6 + self._client = weakref.proxy(client) + + warnings.warn( + 'The S3RegionRedirector class has been deprecated for a new ' + 'internal replacement. A future version of botocore may remove ' + 'this class.', + category=FutureWarning, + ) + + def register(self, event_emitter=None): + emitter = event_emitter or self._client.meta.events + emitter.register('needs-retry.s3', self.redirect_from_error) + emitter.register('before-call.s3', self.set_request_url) + emitter.register('before-parameter-build.s3', self.redirect_from_cache) + + def redirect_from_error(self, request_dict, response, operation, **kwargs): + """ + An S3 request sent to the wrong region will return an error that + contains the endpoint the request should be sent to. This handler + will add the redirect information to the signing context and then + redirect the request. + """ + if response is None: + # This could be none if there was a ConnectionError or other + # transport error. + return + + if self._is_s3_accesspoint(request_dict.get('context', {})): + logger.debug( + 'S3 request was previously to an accesspoint, not redirecting.' + ) + return + + if request_dict.get('context', {}).get('s3_redirected'): + logger.debug( + 'S3 request was previously redirected, not redirecting.' + ) + return + + error = response[1].get('Error', {}) + error_code = error.get('Code') + response_metadata = response[1].get('ResponseMetadata', {}) + + # We have to account for 400 responses because + # if we sign a Head* request with the wrong region, + # we'll get a 400 Bad Request but we won't get a + # body saying it's an "AuthorizationHeaderMalformed". + is_special_head_object = ( + error_code in ('301', '400') and operation.name == 'HeadObject' + ) + is_special_head_bucket = ( + error_code in ('301', '400') + and operation.name == 'HeadBucket' + and 'x-amz-bucket-region' + in response_metadata.get('HTTPHeaders', {}) + ) + is_wrong_signing_region = ( + error_code == 'AuthorizationHeaderMalformed' and 'Region' in error + ) + is_redirect_status = response[0] is not None and response[ + 0 + ].status_code in (301, 302, 307) + is_permanent_redirect = error_code == 'PermanentRedirect' + if not any( + [ + is_special_head_object, + is_wrong_signing_region, + is_permanent_redirect, + is_special_head_bucket, + is_redirect_status, + ] + ): + return + + bucket = request_dict['context']['signing']['bucket'] + client_region = request_dict['context'].get('client_region') + new_region = self.get_bucket_region(bucket, response) + + if new_region is None: + logger.debug( + "S3 client configured for region %s but the bucket %s is not " + "in that region and the proper region could not be " + "automatically determined.", + client_region, + bucket, + ) + return + + logger.debug( + "S3 client configured for region %s but the bucket %s is in region" + " %s; Please configure the proper region to avoid multiple " + "unnecessary redirects and signing attempts.", + client_region, + bucket, + new_region, + ) + endpoint = self._endpoint_resolver.resolve('s3', new_region) + endpoint = endpoint['endpoint_url'] + + signing_context = { + 'region': new_region, + 'bucket': bucket, + 'endpoint': endpoint, + } + request_dict['context']['signing'] = signing_context + + self._cache[bucket] = signing_context + self.set_request_url(request_dict, request_dict['context']) + + request_dict['context']['s3_redirected'] = True + + # Return 0 so it doesn't wait to retry + return 0 + + def get_bucket_region(self, bucket, response): + """ + There are multiple potential sources for the new region to redirect to, + but they aren't all universally available for use. This will try to + find region from response elements, but will fall back to calling + HEAD on the bucket if all else fails. + + :param bucket: The bucket to find the region for. This is necessary if + the region is not available in the error response. + :param response: A response representing a service request that failed + due to incorrect region configuration. + """ + # First try to source the region from the headers. + service_response = response[1] + response_headers = service_response['ResponseMetadata']['HTTPHeaders'] + if 'x-amz-bucket-region' in response_headers: + return response_headers['x-amz-bucket-region'] + + # Next, check the error body + region = service_response.get('Error', {}).get('Region', None) + if region is not None: + return region + + # Finally, HEAD the bucket. No other choice sadly. + try: + response = self._client.head_bucket(Bucket=bucket) + headers = response['ResponseMetadata']['HTTPHeaders'] + except ClientError as e: + headers = e.response['ResponseMetadata']['HTTPHeaders'] + + region = headers.get('x-amz-bucket-region', None) + return region + + def set_request_url(self, params, context, **kwargs): + endpoint = context.get('signing', {}).get('endpoint', None) + if endpoint is not None: + params['url'] = _get_new_endpoint(params['url'], endpoint, False) + + def redirect_from_cache(self, params, context, **kwargs): + """ + This handler retrieves a given bucket's signing context from the cache + and adds it into the request context. + """ + if self._is_s3_accesspoint(context): + return + bucket = params.get('Bucket') + signing_context = self._cache.get(bucket) + if signing_context is not None: + context['signing'] = signing_context + else: + context['signing'] = {'bucket': bucket} + + def _is_s3_accesspoint(self, context): + return 's3_accesspoint' in context + + +class InvalidArnException(ValueError): + pass + + +class ArnParser: + def parse_arn(self, arn): + arn_parts = arn.split(':', 5) + if len(arn_parts) < 6: + raise InvalidArnException( + f'Provided ARN: {arn} must be of the format: ' + 'arn:partition:service:region:account:resource' + ) + return { + 'partition': arn_parts[1], + 'service': arn_parts[2], + 'region': arn_parts[3], + 'account': arn_parts[4], + 'resource': arn_parts[5], + } + + @staticmethod + def is_arn(value): + if not isinstance(value, str) or not value.startswith('arn:'): + return False + arn_parser = ArnParser() + try: + arn_parser.parse_arn(value) + return True + except InvalidArnException: + return False + + +class S3ArnParamHandler: + _RESOURCE_REGEX = re.compile( + r'^(?Paccesspoint|outpost)[/:](?P.+)$' + ) + _OUTPOST_RESOURCE_REGEX = re.compile( + r'^(?P[a-zA-Z0-9\-]{1,63})[/:]accesspoint[/:]' + r'(?P[a-zA-Z0-9\-]{1,63}$)' + ) + _BLACKLISTED_OPERATIONS = ['CreateBucket'] + + def __init__(self, arn_parser=None): + self._arn_parser = arn_parser + if arn_parser is None: + self._arn_parser = ArnParser() + + def register(self, event_emitter): + event_emitter.register('before-parameter-build.s3', self.handle_arn) + + def handle_arn(self, params, model, context, **kwargs): + if model.name in self._BLACKLISTED_OPERATIONS: + return + arn_details = self._get_arn_details_from_bucket_param(params) + if arn_details is None: + return + if arn_details['resource_type'] == 'accesspoint': + self._store_accesspoint(params, context, arn_details) + elif arn_details['resource_type'] == 'outpost': + self._store_outpost(params, context, arn_details) + + def _get_arn_details_from_bucket_param(self, params): + if 'Bucket' in params: + try: + arn = params['Bucket'] + arn_details = self._arn_parser.parse_arn(arn) + self._add_resource_type_and_name(arn, arn_details) + return arn_details + except InvalidArnException: + pass + return None + + def _add_resource_type_and_name(self, arn, arn_details): + match = self._RESOURCE_REGEX.match(arn_details['resource']) + if match: + arn_details['resource_type'] = match.group('resource_type') + arn_details['resource_name'] = match.group('resource_name') + else: + raise UnsupportedS3ArnError(arn=arn) + + def _store_accesspoint(self, params, context, arn_details): + # Ideally the access-point would be stored as a parameter in the + # request where the serializer would then know how to serialize it, + # but access-points are not modeled in S3 operations so it would fail + # validation. Instead, we set the access-point to the bucket parameter + # to have some value set when serializing the request and additional + # information on the context from the arn to use in forming the + # access-point endpoint. + params['Bucket'] = arn_details['resource_name'] + context['s3_accesspoint'] = { + 'name': arn_details['resource_name'], + 'account': arn_details['account'], + 'partition': arn_details['partition'], + 'region': arn_details['region'], + 'service': arn_details['service'], + } + + def _store_outpost(self, params, context, arn_details): + resource_name = arn_details['resource_name'] + match = self._OUTPOST_RESOURCE_REGEX.match(resource_name) + if not match: + raise UnsupportedOutpostResourceError(resource_name=resource_name) + # Because we need to set the bucket name to something to pass + # validation we're going to use the access point name to be consistent + # with normal access point arns. + accesspoint_name = match.group('accesspoint_name') + params['Bucket'] = accesspoint_name + context['s3_accesspoint'] = { + 'outpost_name': match.group('outpost_name'), + 'name': accesspoint_name, + 'account': arn_details['account'], + 'partition': arn_details['partition'], + 'region': arn_details['region'], + 'service': arn_details['service'], + } + + +class S3EndpointSetter: + _DEFAULT_PARTITION = 'aws' + _DEFAULT_DNS_SUFFIX = 'amazonaws.com' + + def __init__( + self, + endpoint_resolver, + region=None, + s3_config=None, + endpoint_url=None, + partition=None, + use_fips_endpoint=False, + ): + # This is calling the endpoint_resolver in regions.py + self._endpoint_resolver = endpoint_resolver + self._region = region + self._s3_config = s3_config + self._use_fips_endpoint = use_fips_endpoint + if s3_config is None: + self._s3_config = {} + self._endpoint_url = endpoint_url + self._partition = partition + if partition is None: + self._partition = self._DEFAULT_PARTITION + + def register(self, event_emitter): + event_emitter.register('before-sign.s3', self.set_endpoint) + event_emitter.register('choose-signer.s3', self.set_signer) + event_emitter.register( + 'before-call.s3.WriteGetObjectResponse', + self.update_endpoint_to_s3_object_lambda, + ) + + def update_endpoint_to_s3_object_lambda(self, params, context, **kwargs): + if self._use_accelerate_endpoint: + raise UnsupportedS3ConfigurationError( + msg='S3 client does not support accelerate endpoints for S3 Object Lambda operations', + ) + + self._override_signing_name(context, 's3-object-lambda') + if self._endpoint_url: + # Only update the url if an explicit url was not provided + return + + resolver = self._endpoint_resolver + # Constructing endpoints as s3-object-lambda as region + resolved = resolver.construct_endpoint( + 's3-object-lambda', self._region + ) + + # Ideally we would be able to replace the endpoint before + # serialization but there's no event to do that currently + # host_prefix is all the arn/bucket specs + new_endpoint = 'https://{host_prefix}{hostname}'.format( + host_prefix=params['host_prefix'], + hostname=resolved['hostname'], + ) + + params['url'] = _get_new_endpoint(params['url'], new_endpoint, False) + + def set_endpoint(self, request, **kwargs): + if self._use_accesspoint_endpoint(request): + self._validate_accesspoint_supported(request) + self._validate_fips_supported(request) + self._validate_global_regions(request) + region_name = self._resolve_region_for_accesspoint_endpoint( + request + ) + self._resolve_signing_name_for_accesspoint_endpoint(request) + self._switch_to_accesspoint_endpoint(request, region_name) + return + if self._use_accelerate_endpoint: + if self._use_fips_endpoint: + raise UnsupportedS3ConfigurationError( + msg=( + 'Client is configured to use the FIPS psuedo region ' + f'for "{self._region}", but S3 Accelerate does not have any FIPS ' + 'compatible endpoints.' + ) + ) + switch_host_s3_accelerate(request=request, **kwargs) + if self._s3_addressing_handler: + self._s3_addressing_handler(request=request, **kwargs) + + def _use_accesspoint_endpoint(self, request): + return 's3_accesspoint' in request.context + + def _validate_fips_supported(self, request): + if not self._use_fips_endpoint: + return + if 'fips' in request.context['s3_accesspoint']['region']: + raise UnsupportedS3AccesspointConfigurationError( + msg={'Invalid ARN, FIPS region not allowed in ARN.'} + ) + if 'outpost_name' in request.context['s3_accesspoint']: + raise UnsupportedS3AccesspointConfigurationError( + msg=( + f'Client is configured to use the FIPS psuedo-region "{self._region}", ' + 'but outpost ARNs do not support FIPS endpoints.' + ) + ) + # Transforming psuedo region to actual region + accesspoint_region = request.context['s3_accesspoint']['region'] + if accesspoint_region != self._region: + if not self._s3_config.get('use_arn_region', True): + # TODO: Update message to reflect use_arn_region + # is not set + raise UnsupportedS3AccesspointConfigurationError( + msg=( + 'Client is configured to use the FIPS psuedo-region ' + f'for "{self._region}", but the access-point ARN provided is for ' + f'the "{accesspoint_region}" region. For clients using a FIPS ' + 'psuedo-region calls to access-point ARNs in another ' + 'region are not allowed.' + ) + ) + + def _validate_global_regions(self, request): + if self._s3_config.get('use_arn_region', True): + return + if self._region in ['aws-global', 's3-external-1']: + raise UnsupportedS3AccesspointConfigurationError( + msg=( + 'Client is configured to use the global psuedo-region ' + f'"{self._region}". When providing access-point ARNs a regional ' + 'endpoint must be specified.' + ) + ) + + def _validate_accesspoint_supported(self, request): + if self._use_accelerate_endpoint: + raise UnsupportedS3AccesspointConfigurationError( + msg=( + 'Client does not support s3 accelerate configuration ' + 'when an access-point ARN is specified.' + ) + ) + request_partition = request.context['s3_accesspoint']['partition'] + if request_partition != self._partition: + raise UnsupportedS3AccesspointConfigurationError( + msg=( + f'Client is configured for "{self._partition}" partition, but access-point' + f' ARN provided is for "{request_partition}" partition. The client and ' + ' access-point partition must be the same.' + ) + ) + s3_service = request.context['s3_accesspoint'].get('service') + if s3_service == 's3-object-lambda' and self._s3_config.get( + 'use_dualstack_endpoint' + ): + raise UnsupportedS3AccesspointConfigurationError( + msg=( + 'Client does not support s3 dualstack configuration ' + 'when an S3 Object Lambda access point ARN is specified.' + ) + ) + outpost_name = request.context['s3_accesspoint'].get('outpost_name') + if outpost_name and self._s3_config.get('use_dualstack_endpoint'): + raise UnsupportedS3AccesspointConfigurationError( + msg=( + 'Client does not support s3 dualstack configuration ' + 'when an outpost ARN is specified.' + ) + ) + self._validate_mrap_s3_config(request) + + def _validate_mrap_s3_config(self, request): + if not is_global_accesspoint(request.context): + return + if self._s3_config.get('s3_disable_multiregion_access_points'): + raise UnsupportedS3AccesspointConfigurationError( + msg=( + 'Invalid configuration, Multi-Region Access Point ' + 'ARNs are disabled.' + ) + ) + elif self._s3_config.get('use_dualstack_endpoint'): + raise UnsupportedS3AccesspointConfigurationError( + msg=( + 'Client does not support s3 dualstack configuration ' + 'when a Multi-Region Access Point ARN is specified.' + ) + ) + + def _resolve_region_for_accesspoint_endpoint(self, request): + if is_global_accesspoint(request.context): + # Requests going to MRAP endpoints MUST be set to any (*) region. + self._override_signing_region(request, '*') + elif self._s3_config.get('use_arn_region', True): + accesspoint_region = request.context['s3_accesspoint']['region'] + # If we are using the region from the access point, + # we will also want to make sure that we set it as the + # signing region as well + self._override_signing_region(request, accesspoint_region) + return accesspoint_region + return self._region + + def set_signer(self, context, **kwargs): + if is_global_accesspoint(context): + if HAS_CRT: + return 's3v4a' + else: + raise MissingDependencyException( + msg="Using S3 with an MRAP arn requires an additional " + "dependency. You will need to pip install " + "botocore[crt] before proceeding." + ) + + def _resolve_signing_name_for_accesspoint_endpoint(self, request): + accesspoint_service = request.context['s3_accesspoint']['service'] + self._override_signing_name(request.context, accesspoint_service) + + def _switch_to_accesspoint_endpoint(self, request, region_name): + original_components = urlsplit(request.url) + accesspoint_endpoint = urlunsplit( + ( + original_components.scheme, + self._get_netloc(request.context, region_name), + self._get_accesspoint_path( + original_components.path, request.context + ), + original_components.query, + '', + ) + ) + logger.debug( + 'Updating URI from %s to %s', request.url, accesspoint_endpoint + ) + request.url = accesspoint_endpoint + + def _get_netloc(self, request_context, region_name): + if is_global_accesspoint(request_context): + return self._get_mrap_netloc(request_context) + else: + return self._get_accesspoint_netloc(request_context, region_name) + + def _get_mrap_netloc(self, request_context): + s3_accesspoint = request_context['s3_accesspoint'] + region_name = 's3-global' + mrap_netloc_components = [s3_accesspoint['name']] + if self._endpoint_url: + endpoint_url_netloc = urlsplit(self._endpoint_url).netloc + mrap_netloc_components.append(endpoint_url_netloc) + else: + partition = s3_accesspoint['partition'] + mrap_netloc_components.extend( + [ + 'accesspoint', + region_name, + self._get_partition_dns_suffix(partition), + ] + ) + return '.'.join(mrap_netloc_components) + + def _get_accesspoint_netloc(self, request_context, region_name): + s3_accesspoint = request_context['s3_accesspoint'] + accesspoint_netloc_components = [ + '{}-{}'.format(s3_accesspoint['name'], s3_accesspoint['account']), + ] + outpost_name = s3_accesspoint.get('outpost_name') + if self._endpoint_url: + if outpost_name: + accesspoint_netloc_components.append(outpost_name) + endpoint_url_netloc = urlsplit(self._endpoint_url).netloc + accesspoint_netloc_components.append(endpoint_url_netloc) + else: + if outpost_name: + outpost_host = [outpost_name, 's3-outposts'] + accesspoint_netloc_components.extend(outpost_host) + elif s3_accesspoint['service'] == 's3-object-lambda': + component = self._inject_fips_if_needed( + 's3-object-lambda', request_context + ) + accesspoint_netloc_components.append(component) + else: + component = self._inject_fips_if_needed( + 's3-accesspoint', request_context + ) + accesspoint_netloc_components.append(component) + if self._s3_config.get('use_dualstack_endpoint'): + accesspoint_netloc_components.append('dualstack') + accesspoint_netloc_components.extend( + [region_name, self._get_dns_suffix(region_name)] + ) + return '.'.join(accesspoint_netloc_components) + + def _inject_fips_if_needed(self, component, request_context): + if self._use_fips_endpoint: + return f'{component}-fips' + return component + + def _get_accesspoint_path(self, original_path, request_context): + # The Bucket parameter was substituted with the access-point name as + # some value was required in serializing the bucket name. Now that + # we are making the request directly to the access point, we will + # want to remove that access-point name from the path. + name = request_context['s3_accesspoint']['name'] + # All S3 operations require at least a / in their path. + return original_path.replace('/' + name, '', 1) or '/' + + def _get_partition_dns_suffix(self, partition_name): + dns_suffix = self._endpoint_resolver.get_partition_dns_suffix( + partition_name + ) + if dns_suffix is None: + dns_suffix = self._DEFAULT_DNS_SUFFIX + return dns_suffix + + def _get_dns_suffix(self, region_name): + resolved = self._endpoint_resolver.construct_endpoint( + 's3', region_name + ) + dns_suffix = self._DEFAULT_DNS_SUFFIX + if resolved and 'dnsSuffix' in resolved: + dns_suffix = resolved['dnsSuffix'] + return dns_suffix + + def _override_signing_region(self, request, region_name): + signing_context = request.context.get('signing', {}) + # S3SigV4Auth will use the context['signing']['region'] value to + # sign with if present. This is used by the Bucket redirector + # as well but we should be fine because the redirector is never + # used in combination with the accesspoint setting logic. + signing_context['region'] = region_name + request.context['signing'] = signing_context + + def _override_signing_name(self, context, signing_name): + signing_context = context.get('signing', {}) + # S3SigV4Auth will use the context['signing']['signing_name'] value to + # sign with if present. This is used by the Bucket redirector + # as well but we should be fine because the redirector is never + # used in combination with the accesspoint setting logic. + signing_context['signing_name'] = signing_name + context['signing'] = signing_context + + @CachedProperty + def _use_accelerate_endpoint(self): + # Enable accelerate if the configuration is set to to true or the + # endpoint being used matches one of the accelerate endpoints. + + # Accelerate has been explicitly configured. + if self._s3_config.get('use_accelerate_endpoint'): + return True + + # Accelerate mode is turned on automatically if an endpoint url is + # provided that matches the accelerate scheme. + if self._endpoint_url is None: + return False + + # Accelerate is only valid for Amazon endpoints. + netloc = urlsplit(self._endpoint_url).netloc + if not netloc.endswith('amazonaws.com'): + return False + + # The first part of the url should always be s3-accelerate. + parts = netloc.split('.') + if parts[0] != 's3-accelerate': + return False + + # Url parts between 's3-accelerate' and 'amazonaws.com' which + # represent different url features. + feature_parts = parts[1:-2] + + # There should be no duplicate url parts. + if len(feature_parts) != len(set(feature_parts)): + return False + + # Remaining parts must all be in the whitelist. + return all(p in S3_ACCELERATE_WHITELIST for p in feature_parts) + + @CachedProperty + def _addressing_style(self): + # Use virtual host style addressing if accelerate is enabled or if + # the given endpoint url is an accelerate endpoint. + if self._use_accelerate_endpoint: + return 'virtual' + + # If a particular addressing style is configured, use it. + configured_addressing_style = self._s3_config.get('addressing_style') + if configured_addressing_style: + return configured_addressing_style + + @CachedProperty + def _s3_addressing_handler(self): + # If virtual host style was configured, use it regardless of whether + # or not the bucket looks dns compatible. + if self._addressing_style == 'virtual': + logger.debug("Using S3 virtual host style addressing.") + return switch_to_virtual_host_style + + # If path style is configured, no additional steps are needed. If + # endpoint_url was specified, don't default to virtual. We could + # potentially default provided endpoint urls to virtual hosted + # style, but for now it is avoided. + if self._addressing_style == 'path' or self._endpoint_url is not None: + logger.debug("Using S3 path style addressing.") + return None + + logger.debug( + "Defaulting to S3 virtual host style addressing with " + "path style addressing fallback." + ) + + # By default, try to use virtual style with path fallback. + return fix_s3_host + + +class S3ControlEndpointSetter: + _DEFAULT_PARTITION = 'aws' + _DEFAULT_DNS_SUFFIX = 'amazonaws.com' + _HOST_LABEL_REGEX = re.compile(r'^[a-zA-Z0-9\-]{1,63}$') + + def __init__( + self, + endpoint_resolver, + region=None, + s3_config=None, + endpoint_url=None, + partition=None, + use_fips_endpoint=False, + ): + self._endpoint_resolver = endpoint_resolver + self._region = region + self._s3_config = s3_config + self._use_fips_endpoint = use_fips_endpoint + if s3_config is None: + self._s3_config = {} + self._endpoint_url = endpoint_url + self._partition = partition + if partition is None: + self._partition = self._DEFAULT_PARTITION + + def register(self, event_emitter): + event_emitter.register('before-sign.s3-control', self.set_endpoint) + + def set_endpoint(self, request, **kwargs): + if self._use_endpoint_from_arn_details(request): + self._validate_endpoint_from_arn_details_supported(request) + region_name = self._resolve_region_from_arn_details(request) + self._resolve_signing_name_from_arn_details(request) + self._resolve_endpoint_from_arn_details(request, region_name) + self._add_headers_from_arn_details(request) + elif self._use_endpoint_from_outpost_id(request): + self._validate_outpost_redirection_valid(request) + self._override_signing_name(request, 's3-outposts') + new_netloc = self._construct_outpost_endpoint(self._region) + self._update_request_netloc(request, new_netloc) + + def _use_endpoint_from_arn_details(self, request): + return 'arn_details' in request.context + + def _use_endpoint_from_outpost_id(self, request): + return 'outpost_id' in request.context + + def _validate_endpoint_from_arn_details_supported(self, request): + if 'fips' in request.context['arn_details']['region']: + raise UnsupportedS3ControlArnError( + arn=request.context['arn_details']['original'], + msg='Invalid ARN, FIPS region not allowed in ARN.', + ) + if not self._s3_config.get('use_arn_region', False): + arn_region = request.context['arn_details']['region'] + if arn_region != self._region: + error_msg = ( + 'The use_arn_region configuration is disabled but ' + f'received arn for "{arn_region}" when the client is configured ' + f'to use "{self._region}"' + ) + raise UnsupportedS3ControlConfigurationError(msg=error_msg) + request_partion = request.context['arn_details']['partition'] + if request_partion != self._partition: + raise UnsupportedS3ControlConfigurationError( + msg=( + f'Client is configured for "{self._partition}" partition, but arn ' + f'provided is for "{request_partion}" partition. The client and ' + 'arn partition must be the same.' + ) + ) + if self._s3_config.get('use_accelerate_endpoint'): + raise UnsupportedS3ControlConfigurationError( + msg='S3 control client does not support accelerate endpoints', + ) + if 'outpost_name' in request.context['arn_details']: + self._validate_outpost_redirection_valid(request) + + def _validate_outpost_redirection_valid(self, request): + if self._s3_config.get('use_dualstack_endpoint'): + raise UnsupportedS3ControlConfigurationError( + msg=( + 'Client does not support s3 dualstack configuration ' + 'when an outpost is specified.' + ) + ) + + def _resolve_region_from_arn_details(self, request): + if self._s3_config.get('use_arn_region', False): + arn_region = request.context['arn_details']['region'] + # If we are using the region from the expanded arn, we will also + # want to make sure that we set it as the signing region as well + self._override_signing_region(request, arn_region) + return arn_region + return self._region + + def _resolve_signing_name_from_arn_details(self, request): + arn_service = request.context['arn_details']['service'] + self._override_signing_name(request, arn_service) + return arn_service + + def _resolve_endpoint_from_arn_details(self, request, region_name): + new_netloc = self._resolve_netloc_from_arn_details( + request, region_name + ) + self._update_request_netloc(request, new_netloc) + + def _update_request_netloc(self, request, new_netloc): + original_components = urlsplit(request.url) + arn_details_endpoint = urlunsplit( + ( + original_components.scheme, + new_netloc, + original_components.path, + original_components.query, + '', + ) + ) + logger.debug( + 'Updating URI from %s to %s', request.url, arn_details_endpoint + ) + request.url = arn_details_endpoint + + def _resolve_netloc_from_arn_details(self, request, region_name): + arn_details = request.context['arn_details'] + if 'outpost_name' in arn_details: + return self._construct_outpost_endpoint(region_name) + account = arn_details['account'] + return self._construct_s3_control_endpoint(region_name, account) + + def _is_valid_host_label(self, label): + return self._HOST_LABEL_REGEX.match(label) + + def _validate_host_labels(self, *labels): + for label in labels: + if not self._is_valid_host_label(label): + raise InvalidHostLabelError(label=label) + + def _construct_s3_control_endpoint(self, region_name, account): + self._validate_host_labels(region_name, account) + if self._endpoint_url: + endpoint_url_netloc = urlsplit(self._endpoint_url).netloc + netloc = [account, endpoint_url_netloc] + else: + netloc = [ + account, + 's3-control', + ] + self._add_dualstack(netloc) + dns_suffix = self._get_dns_suffix(region_name) + netloc.extend([region_name, dns_suffix]) + return self._construct_netloc(netloc) + + def _construct_outpost_endpoint(self, region_name): + self._validate_host_labels(region_name) + if self._endpoint_url: + return urlsplit(self._endpoint_url).netloc + else: + netloc = [ + 's3-outposts', + region_name, + self._get_dns_suffix(region_name), + ] + self._add_fips(netloc) + return self._construct_netloc(netloc) + + def _construct_netloc(self, netloc): + return '.'.join(netloc) + + def _add_fips(self, netloc): + if self._use_fips_endpoint: + netloc[0] = netloc[0] + '-fips' + + def _add_dualstack(self, netloc): + if self._s3_config.get('use_dualstack_endpoint'): + netloc.append('dualstack') + + def _get_dns_suffix(self, region_name): + resolved = self._endpoint_resolver.construct_endpoint( + 's3', region_name + ) + dns_suffix = self._DEFAULT_DNS_SUFFIX + if resolved and 'dnsSuffix' in resolved: + dns_suffix = resolved['dnsSuffix'] + return dns_suffix + + def _override_signing_region(self, request, region_name): + signing_context = request.context.get('signing', {}) + # S3SigV4Auth will use the context['signing']['region'] value to + # sign with if present. This is used by the Bucket redirector + # as well but we should be fine because the redirector is never + # used in combination with the accesspoint setting logic. + signing_context['region'] = region_name + request.context['signing'] = signing_context + + def _override_signing_name(self, request, signing_name): + signing_context = request.context.get('signing', {}) + # S3SigV4Auth will use the context['signing']['signing_name'] value to + # sign with if present. This is used by the Bucket redirector + # as well but we should be fine because the redirector is never + # used in combination with the accesspoint setting logic. + signing_context['signing_name'] = signing_name + request.context['signing'] = signing_context + + def _add_headers_from_arn_details(self, request): + arn_details = request.context['arn_details'] + outpost_name = arn_details.get('outpost_name') + if outpost_name: + self._add_outpost_id_header(request, outpost_name) + + def _add_outpost_id_header(self, request, outpost_name): + request.headers['x-amz-outpost-id'] = outpost_name + + +class S3ControlArnParamHandler: + """This handler has been replaced by S3ControlArnParamHandlerv2. The + original version remains in place for any third-party importers. + """ + + _RESOURCE_SPLIT_REGEX = re.compile(r'[/:]') + + def __init__(self, arn_parser=None): + self._arn_parser = arn_parser + if arn_parser is None: + self._arn_parser = ArnParser() + warnings.warn( + 'The S3ControlArnParamHandler class has been deprecated for a new ' + 'internal replacement. A future version of botocore may remove ' + 'this class.', + category=FutureWarning, + ) + + def register(self, event_emitter): + event_emitter.register( + 'before-parameter-build.s3-control', + self.handle_arn, + ) + + def handle_arn(self, params, model, context, **kwargs): + if model.name in ('CreateBucket', 'ListRegionalBuckets'): + # CreateBucket and ListRegionalBuckets are special cases that do + # not obey ARN based redirection but will redirect based off of the + # presence of the OutpostId parameter + self._handle_outpost_id_param(params, model, context) + else: + self._handle_name_param(params, model, context) + self._handle_bucket_param(params, model, context) + + def _get_arn_details_from_param(self, params, param_name): + if param_name not in params: + return None + try: + arn = params[param_name] + arn_details = self._arn_parser.parse_arn(arn) + arn_details['original'] = arn + arn_details['resources'] = self._split_resource(arn_details) + return arn_details + except InvalidArnException: + return None + + def _split_resource(self, arn_details): + return self._RESOURCE_SPLIT_REGEX.split(arn_details['resource']) + + def _override_account_id_param(self, params, arn_details): + account_id = arn_details['account'] + if 'AccountId' in params and params['AccountId'] != account_id: + error_msg = ( + 'Account ID in arn does not match the AccountId parameter ' + 'provided: "{}"' + ).format(params['AccountId']) + raise UnsupportedS3ControlArnError( + arn=arn_details['original'], + msg=error_msg, + ) + params['AccountId'] = account_id + + def _handle_outpost_id_param(self, params, model, context): + if 'OutpostId' not in params: + return + context['outpost_id'] = params['OutpostId'] + + def _handle_name_param(self, params, model, context): + # CreateAccessPoint is a special case that does not expand Name + if model.name == 'CreateAccessPoint': + return + arn_details = self._get_arn_details_from_param(params, 'Name') + if arn_details is None: + return + if self._is_outpost_accesspoint(arn_details): + self._store_outpost_accesspoint(params, context, arn_details) + else: + error_msg = 'The Name parameter does not support the provided ARN' + raise UnsupportedS3ControlArnError( + arn=arn_details['original'], + msg=error_msg, + ) + + def _is_outpost_accesspoint(self, arn_details): + if arn_details['service'] != 's3-outposts': + return False + resources = arn_details['resources'] + if len(resources) != 4: + return False + # Resource must be of the form outpost/op-123/accesspoint/name + return resources[0] == 'outpost' and resources[2] == 'accesspoint' + + def _store_outpost_accesspoint(self, params, context, arn_details): + self._override_account_id_param(params, arn_details) + accesspoint_name = arn_details['resources'][3] + params['Name'] = accesspoint_name + arn_details['accesspoint_name'] = accesspoint_name + arn_details['outpost_name'] = arn_details['resources'][1] + context['arn_details'] = arn_details + + def _handle_bucket_param(self, params, model, context): + arn_details = self._get_arn_details_from_param(params, 'Bucket') + if arn_details is None: + return + if self._is_outpost_bucket(arn_details): + self._store_outpost_bucket(params, context, arn_details) + else: + error_msg = ( + 'The Bucket parameter does not support the provided ARN' + ) + raise UnsupportedS3ControlArnError( + arn=arn_details['original'], + msg=error_msg, + ) + + def _is_outpost_bucket(self, arn_details): + if arn_details['service'] != 's3-outposts': + return False + resources = arn_details['resources'] + if len(resources) != 4: + return False + # Resource must be of the form outpost/op-123/bucket/name + return resources[0] == 'outpost' and resources[2] == 'bucket' + + def _store_outpost_bucket(self, params, context, arn_details): + self._override_account_id_param(params, arn_details) + bucket_name = arn_details['resources'][3] + params['Bucket'] = bucket_name + arn_details['bucket_name'] = bucket_name + arn_details['outpost_name'] = arn_details['resources'][1] + context['arn_details'] = arn_details + + +class S3ControlArnParamHandlerv2(S3ControlArnParamHandler): + """Updated version of S3ControlArnParamHandler for use when + EndpointRulesetResolver is in use for endpoint resolution. + + This class is considered private and subject to abrupt breaking changes or + removal without prior announcement. Please do not use it directly. + """ + + def __init__(self, arn_parser=None): + self._arn_parser = arn_parser + if arn_parser is None: + self._arn_parser = ArnParser() + + def register(self, event_emitter): + event_emitter.register( + 'before-endpoint-resolution.s3-control', + self.handle_arn, + ) + + def _handle_name_param(self, params, model, context): + # CreateAccessPoint is a special case that does not expand Name + if model.name == 'CreateAccessPoint': + return + arn_details = self._get_arn_details_from_param(params, 'Name') + if arn_details is None: + return + self._raise_for_fips_pseudo_region(arn_details) + self._raise_for_accelerate_endpoint(context) + if self._is_outpost_accesspoint(arn_details): + self._store_outpost_accesspoint(params, context, arn_details) + else: + error_msg = 'The Name parameter does not support the provided ARN' + raise UnsupportedS3ControlArnError( + arn=arn_details['original'], + msg=error_msg, + ) + + def _store_outpost_accesspoint(self, params, context, arn_details): + self._override_account_id_param(params, arn_details) + + def _handle_bucket_param(self, params, model, context): + arn_details = self._get_arn_details_from_param(params, 'Bucket') + if arn_details is None: + return + self._raise_for_fips_pseudo_region(arn_details) + self._raise_for_accelerate_endpoint(context) + if self._is_outpost_bucket(arn_details): + self._store_outpost_bucket(params, context, arn_details) + else: + error_msg = ( + 'The Bucket parameter does not support the provided ARN' + ) + raise UnsupportedS3ControlArnError( + arn=arn_details['original'], + msg=error_msg, + ) + + def _store_outpost_bucket(self, params, context, arn_details): + self._override_account_id_param(params, arn_details) + + def _raise_for_fips_pseudo_region(self, arn_details): + # FIPS pseudo region names cannot be used in ARNs + arn_region = arn_details['region'] + if arn_region.startswith('fips-') or arn_region.endswith('fips-'): + raise UnsupportedS3ControlArnError( + arn=arn_details['original'], + msg='Invalid ARN, FIPS region not allowed in ARN.', + ) + + def _raise_for_accelerate_endpoint(self, context): + s3_config = context['client_config'].s3 or {} + if s3_config.get('use_accelerate_endpoint'): + raise UnsupportedS3ControlConfigurationError( + msg='S3 control client does not support accelerate endpoints', + ) + + +class ContainerMetadataFetcher: + TIMEOUT_SECONDS = 2 + RETRY_ATTEMPTS = 3 + SLEEP_TIME = 1 + IP_ADDRESS = '169.254.170.2' + _ALLOWED_HOSTS = [ + IP_ADDRESS, + '169.254.170.23', + 'fd00:ec2::23', + 'localhost', + ] + + def __init__(self, session=None, sleep=time.sleep): + if session is None: + session = botocore.httpsession.URLLib3Session( + timeout=self.TIMEOUT_SECONDS + ) + self._session = session + self._sleep = sleep + + def retrieve_full_uri(self, full_url, headers=None): + """Retrieve JSON metadata from container metadata. + + :type full_url: str + :param full_url: The full URL of the metadata service. + This should include the scheme as well, e.g + "http://localhost:123/foo" + + """ + self._validate_allowed_url(full_url) + return self._retrieve_credentials(full_url, headers) + + def _validate_allowed_url(self, full_url): + parsed = botocore.compat.urlparse(full_url) + if self._is_loopback_address(parsed.hostname): + return + is_whitelisted_host = self._check_if_whitelisted_host(parsed.hostname) + if not is_whitelisted_host: + raise ValueError( + f"Unsupported host '{parsed.hostname}'. Can only retrieve metadata " + f"from a loopback address or one of these hosts: {', '.join(self._ALLOWED_HOSTS)}" + ) + + def _is_loopback_address(self, hostname): + try: + ip = ip_address(hostname) + return ip.is_loopback + except ValueError: + return False + + def _check_if_whitelisted_host(self, host): + if host in self._ALLOWED_HOSTS: + return True + return False + + def retrieve_uri(self, relative_uri): + """Retrieve JSON metadata from container metadata. + + :type relative_uri: str + :param relative_uri: A relative URI, e.g "/foo/bar?id=123" + + :return: The parsed JSON response. + + """ + full_url = self.full_url(relative_uri) + return self._retrieve_credentials(full_url) + + def _retrieve_credentials(self, full_url, extra_headers=None): + headers = {'Accept': 'application/json'} + if extra_headers is not None: + headers.update(extra_headers) + attempts = 0 + while True: + try: + return self._get_response( + full_url, headers, self.TIMEOUT_SECONDS + ) + except MetadataRetrievalError as e: + logger.debug( + "Received error when attempting to retrieve " + "container metadata: %s", + e, + exc_info=True, + ) + self._sleep(self.SLEEP_TIME) + attempts += 1 + if attempts >= self.RETRY_ATTEMPTS: + raise + + def _get_response(self, full_url, headers, timeout): + try: + AWSRequest = botocore.awsrequest.AWSRequest + request = AWSRequest(method='GET', url=full_url, headers=headers) + response = self._session.send(request.prepare()) + response_text = response.content.decode('utf-8') + if response.status_code != 200: + raise MetadataRetrievalError( + error_msg=( + f"Received non 200 response {response.status_code} " + f"from container metadata: {response_text}" + ) + ) + try: + return json.loads(response_text) + except ValueError: + error_msg = "Unable to parse JSON returned from container metadata services" + logger.debug('%s:%s', error_msg, response_text) + raise MetadataRetrievalError(error_msg=error_msg) + except RETRYABLE_HTTP_ERRORS as e: + error_msg = ( + "Received error when attempting to retrieve " + f"container metadata: {e}" + ) + raise MetadataRetrievalError(error_msg=error_msg) + + def full_url(self, relative_uri): + return f'http://{self.IP_ADDRESS}{relative_uri}' + + +def get_environ_proxies(url): + if should_bypass_proxies(url): + return {} + else: + return getproxies() + + +def should_bypass_proxies(url): + """ + Returns whether we should bypass proxies or not. + """ + # NOTE: requests allowed for ip/cidr entries in no_proxy env that we don't + # support current as urllib only checks DNS suffix + # If the system proxy settings indicate that this URL should be bypassed, + # don't proxy. + # The proxy_bypass function is incredibly buggy on OS X in early versions + # of Python 2.6, so allow this call to fail. Only catch the specific + # exceptions we've seen, though: this call failing in other ways can reveal + # legitimate problems. + try: + if proxy_bypass(urlparse(url).netloc): + return True + except (TypeError, socket.gaierror): + pass + + return False + + +def determine_content_length(body): + # No body, content length of 0 + if not body: + return 0 + + # Try asking the body for it's length + try: + return len(body) + except (AttributeError, TypeError): + pass + + # Try getting the length from a seekable stream + if hasattr(body, 'seek') and hasattr(body, 'tell'): + try: + orig_pos = body.tell() + body.seek(0, 2) + end_file_pos = body.tell() + body.seek(orig_pos) + return end_file_pos - orig_pos + except io.UnsupportedOperation: + # in case when body is, for example, io.BufferedIOBase object + # it has "seek" method which throws "UnsupportedOperation" + # exception in such case we want to fall back to "chunked" + # encoding + pass + # Failed to determine the length + return None + + +def get_encoding_from_headers(headers, default='ISO-8859-1'): + """Returns encodings from given HTTP Header Dict. + + :param headers: dictionary to extract encoding from. + :param default: default encoding if the content-type is text + """ + + content_type = headers.get('content-type') + + if not content_type: + return None + + message = email.message.Message() + message['content-type'] = content_type + charset = message.get_param("charset") + + if charset is not None: + return charset + + if 'text' in content_type: + return default + + +def calculate_md5(body, **kwargs): + """This function has been deprecated, but is kept for backwards compatibility.""" + if isinstance(body, (bytes, bytearray)): + binary_md5 = _calculate_md5_from_bytes(body) + else: + binary_md5 = _calculate_md5_from_file(body) + return base64.b64encode(binary_md5).decode('ascii') + + +def _calculate_md5_from_bytes(body_bytes): + """This function has been deprecated, but is kept for backwards compatibility.""" + md5 = get_md5(body_bytes, usedforsecurity=False) + return md5.digest() + + +def _calculate_md5_from_file(fileobj): + """This function has been deprecated, but is kept for backwards compatibility.""" + start_position = fileobj.tell() + md5 = get_md5(usedforsecurity=False) + for chunk in iter(lambda: fileobj.read(1024 * 1024), b''): + md5.update(chunk) + fileobj.seek(start_position) + return md5.digest() + + +def _is_s3express_request(params): + endpoint_properties = params.get('context', {}).get( + 'endpoint_properties', {} + ) + return endpoint_properties.get('backend') == 'S3Express' + + +def has_checksum_header(params): + """ + Checks if a header starting with "x-amz-checksum-" is provided in a request. + + This function is considered private and subject to abrupt breaking changes or + removal without prior announcement. Please do not use it directly. + """ + headers = params['headers'] + + # If a header matching the x-amz-checksum-* pattern is present, we + # assume a checksum has already been provided by the user. + for header in headers: + if CHECKSUM_HEADER_PATTERN.match(header): + return True + + return False + + +def conditionally_calculate_checksum(params, **kwargs): + """This function has been deprecated, but is kept for backwards compatibility.""" + if not has_checksum_header(params): + conditionally_calculate_md5(params, **kwargs) + conditionally_enable_crc32(params, **kwargs) + + +def conditionally_enable_crc32(params, **kwargs): + """This function has been deprecated, but is kept for backwards compatibility.""" + checksum_context = params.get('context', {}).get('checksum', {}) + checksum_algorithm = checksum_context.get('request_algorithm') + if ( + _is_s3express_request(params) + and params['body'] is not None + and checksum_algorithm in (None, "conditional-md5") + ): + params['context']['checksum'] = { + 'request_algorithm': { + 'algorithm': 'crc32', + 'in': 'header', + 'name': 'x-amz-checksum-crc32', + } + } + + +def conditionally_calculate_md5(params, **kwargs): + """Only add a Content-MD5 if the system supports it. + + This function has been deprecated, but is kept for backwards compatibility. + """ + body = params['body'] + checksum_context = params.get('context', {}).get('checksum', {}) + checksum_algorithm = checksum_context.get('request_algorithm') + if checksum_algorithm and checksum_algorithm != 'conditional-md5': + # Skip for requests that will have a flexible checksum applied + return + + if has_checksum_header(params): + # Don't add a new header if one is already available. + return + + if _is_s3express_request(params): + # S3Express doesn't support MD5 + return + + if MD5_AVAILABLE and body is not None: + md5_digest = calculate_md5(body, **kwargs) + params['headers']['Content-MD5'] = md5_digest + + +class FileWebIdentityTokenLoader: + def __init__(self, web_identity_token_path, _open=open): + self._web_identity_token_path = web_identity_token_path + self._open = _open + + def __call__(self): + with self._open(self._web_identity_token_path) as token_file: + return token_file.read() + + +class SSOTokenLoader: + def __init__(self, cache=None): + if cache is None: + cache = {} + self._cache = cache + + def _generate_cache_key(self, start_url, session_name): + input_str = start_url + if session_name is not None: + input_str = session_name + return hashlib.sha1(input_str.encode('utf-8')).hexdigest() + + def save_token(self, start_url, token, session_name=None): + cache_key = self._generate_cache_key(start_url, session_name) + self._cache[cache_key] = token + + def __call__(self, start_url, session_name=None): + cache_key = self._generate_cache_key(start_url, session_name) + logger.debug('Checking for cached token at: %s', cache_key) + if cache_key not in self._cache: + name = start_url + if session_name is not None: + name = session_name + error_msg = f'Token for {name} does not exist' + raise SSOTokenLoadError(error_msg=error_msg) + + token = self._cache[cache_key] + if 'accessToken' not in token or 'expiresAt' not in token: + error_msg = f'Token for {start_url} is invalid' + raise SSOTokenLoadError(error_msg=error_msg) + return token + + +class EventbridgeSignerSetter: + _DEFAULT_PARTITION = 'aws' + _DEFAULT_DNS_SUFFIX = 'amazonaws.com' + + def __init__(self, endpoint_resolver, region=None, endpoint_url=None): + self._endpoint_resolver = endpoint_resolver + self._region = region + self._endpoint_url = endpoint_url + + def register(self, event_emitter): + event_emitter.register( + 'before-parameter-build.events.PutEvents', + self.check_for_global_endpoint, + ) + event_emitter.register( + 'before-call.events.PutEvents', self.set_endpoint_url + ) + + def set_endpoint_url(self, params, context, **kwargs): + if 'eventbridge_endpoint' in context: + endpoint = context['eventbridge_endpoint'] + logger.debug( + "Rewriting URL from %s to %s", params['url'], endpoint + ) + params['url'] = endpoint + + def check_for_global_endpoint(self, params, context, **kwargs): + endpoint = params.get('EndpointId') + if endpoint is None: + return + + if len(endpoint) == 0: + raise InvalidEndpointConfigurationError( + msg='EndpointId must not be a zero length string' + ) + + if not HAS_CRT: + raise MissingDependencyException( + msg="Using EndpointId requires an additional " + "dependency. You will need to pip install " + "botocore[crt] before proceeding." + ) + + config = context.get('client_config') + endpoint_variant_tags = None + if config is not None: + if config.use_fips_endpoint: + raise InvalidEndpointConfigurationError( + msg="FIPS is not supported with EventBridge " + "multi-region endpoints." + ) + if config.use_dualstack_endpoint: + endpoint_variant_tags = ['dualstack'] + + if self._endpoint_url is None: + # Validate endpoint is a valid hostname component + parts = urlparse(f'https://{endpoint}') + if parts.hostname != endpoint: + raise InvalidEndpointConfigurationError( + msg='EndpointId is not a valid hostname component.' + ) + resolved_endpoint = self._get_global_endpoint( + endpoint, endpoint_variant_tags=endpoint_variant_tags + ) + else: + resolved_endpoint = self._endpoint_url + + context['eventbridge_endpoint'] = resolved_endpoint + context['auth_type'] = 'v4a' + + def _get_global_endpoint(self, endpoint, endpoint_variant_tags=None): + resolver = self._endpoint_resolver + + partition = resolver.get_partition_for_region(self._region) + if partition is None: + partition = self._DEFAULT_PARTITION + dns_suffix = resolver.get_partition_dns_suffix( + partition, endpoint_variant_tags=endpoint_variant_tags + ) + if dns_suffix is None: + dns_suffix = self._DEFAULT_DNS_SUFFIX + + return f"https://{endpoint}.endpoint.events.{dns_suffix}/" + + +def is_s3_accelerate_url(url): + """Does the URL match the S3 Accelerate endpoint scheme? + + Virtual host naming style with bucket names in the netloc part of the URL + are not allowed by this function. + """ + if url is None: + return False + + # Accelerate is only valid for Amazon endpoints. + url_parts = urlsplit(url) + if not url_parts.netloc.endswith( + 'amazonaws.com' + ) or url_parts.scheme not in ['https', 'http']: + return False + + # The first part of the URL must be s3-accelerate. + parts = url_parts.netloc.split('.') + if parts[0] != 's3-accelerate': + return False + + # Url parts between 's3-accelerate' and 'amazonaws.com' which + # represent different url features. + feature_parts = parts[1:-2] + + # There should be no duplicate URL parts. + if len(feature_parts) != len(set(feature_parts)): + return False + + # Remaining parts must all be in the whitelist. + return all(p in S3_ACCELERATE_WHITELIST for p in feature_parts) + + +class JSONFileCache: + """JSON file cache. + This provides a dict like interface that stores JSON serializable + objects. + The objects are serialized to JSON and stored in a file. These + values can be retrieved at a later time. + """ + + CACHE_DIR = os.path.expanduser(os.path.join('~', '.aws', 'boto', 'cache')) + + def __init__(self, working_dir=CACHE_DIR, dumps_func=None): + self._working_dir = working_dir + if dumps_func is None: + dumps_func = self._default_dumps + self._dumps = dumps_func + + def _default_dumps(self, obj): + return json.dumps(obj, default=self._serialize_if_needed) + + def __contains__(self, cache_key): + actual_key = self._convert_cache_key(cache_key) + return os.path.isfile(actual_key) + + def __getitem__(self, cache_key): + """Retrieve value from a cache key.""" + actual_key = self._convert_cache_key(cache_key) + try: + with open(actual_key) as f: + return json.load(f) + except (OSError, ValueError): + raise KeyError(cache_key) + + def __delitem__(self, cache_key): + actual_key = self._convert_cache_key(cache_key) + try: + key_path = Path(actual_key) + key_path.unlink() + except FileNotFoundError: + raise KeyError(cache_key) + + def __setitem__(self, cache_key, value): + full_key = self._convert_cache_key(cache_key) + try: + file_content = self._dumps(value) + except (TypeError, ValueError): + raise ValueError( + f"Value cannot be cached, must be JSON serializable: {value}" + ) + if not os.path.isdir(self._working_dir): + os.makedirs(self._working_dir, exist_ok=True) + with os.fdopen( + os.open(full_key, os.O_WRONLY | os.O_CREAT, 0o600), 'w' + ) as f: + f.truncate() + f.write(file_content) + + def _convert_cache_key(self, cache_key): + full_path = os.path.join(self._working_dir, cache_key + '.json') + return full_path + + def _serialize_if_needed(self, value, iso=False): + if isinstance(value, _DatetimeClass): + if iso: + return value.isoformat() + return value.strftime('%Y-%m-%dT%H:%M:%S%Z') + return value + + +def is_s3express_bucket(bucket): + if bucket is None: + return False + return bucket.endswith('--x-s3') + + +def get_token_from_environment(signing_name, environ=None): + if not isinstance(signing_name, str) or not signing_name.strip(): + return None + + if environ is None: + environ = os.environ + env_var = _get_bearer_env_var_name(signing_name) + return environ.get(env_var) + + +def _get_bearer_env_var_name(signing_name): + bearer_name = signing_name.replace('-', '_').replace(' ', '_').upper() + return f"AWS_BEARER_TOKEN_{bearer_name}" + + +# This parameter is not part of the public interface and is subject to abrupt +# breaking changes or removal without prior announcement. +# Mapping of services that have been renamed for backwards compatibility reasons. +# Keys are the previous name that should be allowed, values are the documented +# and preferred client name. +SERVICE_NAME_ALIASES = {'runtime.sagemaker': 'sagemaker-runtime'} + + +# This parameter is not part of the public interface and is subject to abrupt +# breaking changes or removal without prior announcement. +# Mapping to determine the service ID for services that do not use it as the +# model data directory name. The keys are the data directory name and the +# values are the transformed service IDs (lower case and hyphenated). +CLIENT_NAME_TO_HYPHENIZED_SERVICE_ID_OVERRIDES = { + # Actual service name we use -> Allowed computed service name. + 'apigateway': 'api-gateway', + 'application-autoscaling': 'application-auto-scaling', + 'appmesh': 'app-mesh', + 'autoscaling': 'auto-scaling', + 'autoscaling-plans': 'auto-scaling-plans', + 'ce': 'cost-explorer', + 'cloudhsmv2': 'cloudhsm-v2', + 'cloudsearchdomain': 'cloudsearch-domain', + 'cognito-idp': 'cognito-identity-provider', + 'config': 'config-service', + 'cur': 'cost-and-usage-report-service', + 'datapipeline': 'data-pipeline', + 'directconnect': 'direct-connect', + 'devicefarm': 'device-farm', + 'discovery': 'application-discovery-service', + 'dms': 'database-migration-service', + 'ds': 'directory-service', + 'ds-data': 'directory-service-data', + 'dynamodbstreams': 'dynamodb-streams', + 'elasticbeanstalk': 'elastic-beanstalk', + 'elastictranscoder': 'elastic-transcoder', + 'elb': 'elastic-load-balancing', + 'elbv2': 'elastic-load-balancing-v2', + 'es': 'elasticsearch-service', + 'events': 'eventbridge', + 'globalaccelerator': 'global-accelerator', + 'iot-data': 'iot-data-plane', + 'iot-jobs-data': 'iot-jobs-data-plane', + 'iotevents-data': 'iot-events-data', + 'iotevents': 'iot-events', + 'iotwireless': 'iot-wireless', + 'kinesisanalytics': 'kinesis-analytics', + 'kinesisanalyticsv2': 'kinesis-analytics-v2', + 'kinesisvideo': 'kinesis-video', + 'lex-models': 'lex-model-building-service', + 'lexv2-models': 'lex-models-v2', + 'lex-runtime': 'lex-runtime-service', + 'lexv2-runtime': 'lex-runtime-v2', + 'logs': 'cloudwatch-logs', + 'machinelearning': 'machine-learning', + 'marketplacecommerceanalytics': 'marketplace-commerce-analytics', + 'marketplace-entitlement': 'marketplace-entitlement-service', + 'meteringmarketplace': 'marketplace-metering', + 'mgh': 'migration-hub', + 'sms-voice': 'pinpoint-sms-voice', + 'resourcegroupstaggingapi': 'resource-groups-tagging-api', + 'route53': 'route-53', + 'route53domains': 'route-53-domains', + 's3control': 's3-control', + 'sdb': 'simpledb', + 'secretsmanager': 'secrets-manager', + 'serverlessrepo': 'serverlessapplicationrepository', + 'servicecatalog': 'service-catalog', + 'servicecatalog-appregistry': 'service-catalog-appregistry', + 'stepfunctions': 'sfn', + 'storagegateway': 'storage-gateway', +} diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/validate.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/validate.py new file mode 100644 index 0000000000000000000000000000000000000000..ba9f62fad6d58e37a82d19f4d137b37989e9dacf --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/validate.py @@ -0,0 +1,384 @@ +"""User input parameter validation. + +This module handles user input parameter validation +against a provided input model. + +Note that the objects in this module do *not* mutate any +arguments. No type version happens here. It is up to another +layer to properly convert arguments to any required types. + +Validation Errors +----------------- + + +""" + +import decimal +import json +from datetime import datetime + +from botocore.exceptions import ParamValidationError +from botocore.utils import is_json_value_header, parse_to_aware_datetime + + +def validate_parameters(params, shape): + """Validates input parameters against a schema. + + This is a convenience function that validates parameters against a schema. + You can also instantiate and use the ParamValidator class directly if you + want more control. + + If there are any validation errors then a ParamValidationError + will be raised. If there are no validation errors than no exception + is raised and a value of None is returned. + + :param params: The user provided input parameters. + + :type shape: botocore.model.Shape + :param shape: The schema which the input parameters should + adhere to. + + :raise: ParamValidationError + + """ + validator = ParamValidator() + report = validator.validate(params, shape) + if report.has_errors(): + raise ParamValidationError(report=report.generate_report()) + + +def type_check(valid_types): + def _create_type_check_guard(func): + def _on_passes_type_check(self, param, shape, errors, name): + if _type_check(param, errors, name): + return func(self, param, shape, errors, name) + + def _type_check(param, errors, name): + if not isinstance(param, valid_types): + valid_type_names = [str(t) for t in valid_types] + errors.report( + name, + 'invalid type', + param=param, + valid_types=valid_type_names, + ) + return False + return True + + return _on_passes_type_check + + return _create_type_check_guard + + +def range_check(name, value, shape, error_type, errors): + failed = False + min_allowed = float('-inf') + if 'min' in shape.metadata: + min_allowed = shape.metadata['min'] + if value < min_allowed: + failed = True + elif hasattr(shape, 'serialization'): + # Members that can be bound to the host have an implicit min of 1 + if shape.serialization.get('hostLabel'): + min_allowed = 1 + if value < min_allowed: + failed = True + if failed: + errors.report(name, error_type, param=value, min_allowed=min_allowed) + + +class ValidationErrors: + def __init__(self): + self._errors = [] + + def has_errors(self): + if self._errors: + return True + return False + + def generate_report(self): + error_messages = [] + for error in self._errors: + error_messages.append(self._format_error(error)) + return '\n'.join(error_messages) + + def _format_error(self, error): + error_type, name, additional = error + name = self._get_name(name) + if error_type == 'missing required field': + return ( + f"Missing required parameter in {name}: " + f"\"{additional['required_name']}\"" + ) + elif error_type == 'unknown field': + unknown_param = additional['unknown_param'] + valid_names = ', '.join(additional['valid_names']) + return ( + f'Unknown parameter in {name}: "{unknown_param}", ' + f'must be one of: {valid_names}' + ) + elif error_type == 'invalid type': + param = additional['param'] + param_type = type(param) + valid_types = ', '.join(additional['valid_types']) + return ( + f'Invalid type for parameter {name}, value: {param}, ' + f'type: {param_type}, valid types: {valid_types}' + ) + elif error_type == 'invalid range': + param = additional['param'] + min_allowed = additional['min_allowed'] + return ( + f'Invalid value for parameter {name}, value: {param}, ' + f'valid min value: {min_allowed}' + ) + elif error_type == 'invalid length': + param = additional['param'] + min_allowed = additional['min_allowed'] + return ( + f'Invalid length for parameter {name}, value: {param}, ' + f'valid min length: {min_allowed}' + ) + elif error_type == 'unable to encode to json': + return 'Invalid parameter {} must be json serializable: {}'.format( + name, + additional['type_error'], + ) + elif error_type == 'invalid type for document': + param = additional['param'] + param_type = type(param) + valid_types = ', '.join(additional['valid_types']) + return ( + f'Invalid type for document parameter {name}, value: {param}, ' + f'type: {param_type}, valid types: {valid_types}' + ) + elif error_type == 'more than one input': + members = ', '.join(additional['members']) + return ( + f'Invalid number of parameters set for tagged union structure ' + f'{name}. Can only set one of the following keys: ' + f'{members}.' + ) + elif error_type == 'empty input': + members = ', '.join(additional['members']) + return ( + f'Must set one of the following keys for tagged union' + f'structure {name}: {members}.' + ) + + def _get_name(self, name): + if not name: + return 'input' + elif name.startswith('.'): + return name[1:] + else: + return name + + def report(self, name, reason, **kwargs): + self._errors.append((reason, name, kwargs)) + + +class ParamValidator: + """Validates parameters against a shape model.""" + + def validate(self, params, shape): + """Validate parameters against a shape model. + + This method will validate the parameters against a provided shape model. + All errors will be collected before returning to the caller. This means + that this method will not stop at the first error, it will return all + possible errors. + + :param params: User provided dict of parameters + :param shape: A shape model describing the expected input. + + :return: A list of errors. + + """ + errors = ValidationErrors() + self._validate(params, shape, errors, name='') + return errors + + def _check_special_validation_cases(self, shape): + if is_json_value_header(shape): + return self._validate_jsonvalue_string + if shape.type_name == 'structure' and shape.is_document_type: + return self._validate_document + + def _validate(self, params, shape, errors, name): + special_validator = self._check_special_validation_cases(shape) + if special_validator: + special_validator(params, shape, errors, name) + else: + getattr(self, f'_validate_{shape.type_name}')( + params, shape, errors, name + ) + + def _validate_jsonvalue_string(self, params, shape, errors, name): + # Check to see if a value marked as a jsonvalue can be dumped to + # a json string. + try: + json.dumps(params) + except (ValueError, TypeError) as e: + errors.report(name, 'unable to encode to json', type_error=e) + + def _validate_document(self, params, shape, errors, name): + if params is None: + return + + if isinstance(params, dict): + for key in params: + self._validate_document(params[key], shape, errors, key) + elif isinstance(params, list): + for index, entity in enumerate(params): + self._validate_document( + entity, shape, errors, f'{name}[{index}]' + ) + elif not isinstance(params, ((str,), int, bool, float)): + valid_types = (str, int, bool, float, list, dict) + valid_type_names = [str(t) for t in valid_types] + errors.report( + name, + 'invalid type for document', + param=params, + param_type=type(params), + valid_types=valid_type_names, + ) + + @type_check(valid_types=(dict,)) + def _validate_structure(self, params, shape, errors, name): + if shape.is_tagged_union: + if len(params) == 0: + errors.report(name, 'empty input', members=shape.members) + elif len(params) > 1: + errors.report( + name, 'more than one input', members=shape.members + ) + + # Validate required fields. + for required_member in shape.metadata.get('required', []): + if required_member not in params: + errors.report( + name, + 'missing required field', + required_name=required_member, + user_params=params, + ) + members = shape.members + known_params = [] + # Validate known params. + for param in params: + if param not in members: + errors.report( + name, + 'unknown field', + unknown_param=param, + valid_names=list(members), + ) + else: + known_params.append(param) + # Validate structure members. + for param in known_params: + self._validate( + params[param], + shape.members[param], + errors, + f'{name}.{param}', + ) + + @type_check(valid_types=(str,)) + def _validate_string(self, param, shape, errors, name): + # Validate range. For a string, the min/max constraints + # are of the string length. + # Looks like: + # "WorkflowId":{ + # "type":"string", + # "min":1, + # "max":256 + # } + range_check(name, len(param), shape, 'invalid length', errors) + + @type_check(valid_types=(list, tuple)) + def _validate_list(self, param, shape, errors, name): + member_shape = shape.member + range_check(name, len(param), shape, 'invalid length', errors) + for i, item in enumerate(param): + self._validate(item, member_shape, errors, f'{name}[{i}]') + + @type_check(valid_types=(dict,)) + def _validate_map(self, param, shape, errors, name): + key_shape = shape.key + value_shape = shape.value + for key, value in param.items(): + self._validate(key, key_shape, errors, f"{name} (key: {key})") + self._validate(value, value_shape, errors, f'{name}.{key}') + + @type_check(valid_types=(int,)) + def _validate_integer(self, param, shape, errors, name): + range_check(name, param, shape, 'invalid range', errors) + + def _validate_blob(self, param, shape, errors, name): + if isinstance(param, (bytes, bytearray, str)): + return + elif hasattr(param, 'read'): + # File like objects are also allowed for blob types. + return + else: + errors.report( + name, + 'invalid type', + param=param, + valid_types=[str(bytes), str(bytearray), 'file-like object'], + ) + + @type_check(valid_types=(bool,)) + def _validate_boolean(self, param, shape, errors, name): + pass + + @type_check(valid_types=(float, decimal.Decimal) + (int,)) + def _validate_double(self, param, shape, errors, name): + range_check(name, param, shape, 'invalid range', errors) + + _validate_float = _validate_double + + @type_check(valid_types=(int,)) + def _validate_long(self, param, shape, errors, name): + range_check(name, param, shape, 'invalid range', errors) + + def _validate_timestamp(self, param, shape, errors, name): + # We don't use @type_check because datetimes are a bit + # more flexible. You can either provide a datetime + # object, or a string that parses to a datetime. + is_valid_type = self._type_check_datetime(param) + if not is_valid_type: + valid_type_names = [str(datetime), 'timestamp-string'] + errors.report( + name, 'invalid type', param=param, valid_types=valid_type_names + ) + + def _type_check_datetime(self, value): + try: + parse_to_aware_datetime(value) + return True + except (TypeError, ValueError, AttributeError): + # Yes, dateutil can sometimes raise an AttributeError + # when parsing timestamps. + return False + + +class ParamValidationDecorator: + def __init__(self, param_validator, serializer): + self._param_validator = param_validator + self._serializer = serializer + + def serialize_to_request(self, parameters, operation_model): + input_shape = operation_model.input_shape + if input_shape is not None: + report = self._param_validator.validate( + parameters, operation_model.input_shape + ) + if report.has_errors(): + raise ParamValidationError(report=report.generate_report()) + return self._serializer.serialize_to_request( + parameters, operation_model + ) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/waiter.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/waiter.py new file mode 100644 index 0000000000000000000000000000000000000000..86110dd99e57994bd66774031031a94f2d391393 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/botocore/waiter.py @@ -0,0 +1,396 @@ +# Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"). You +# may not use this file except in compliance with the License. A copy of +# the License is located at +# +# http://aws.amazon.com/apache2.0/ +# +# or in the "license" file accompanying this file. This file is +# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF +# ANY KIND, either express or implied. See the License for the specific +# language governing permissions and limitations under the License. +import logging +import time +from functools import partial + +import jmespath + +from botocore.context import with_current_context +from botocore.docs.docstring import WaiterDocstring +from botocore.useragent import register_feature_id +from botocore.utils import get_service_module_name + +from . import xform_name +from .exceptions import ClientError, WaiterConfigError, WaiterError + +logger = logging.getLogger(__name__) + + +def create_waiter_with_client(waiter_name, waiter_model, client): + """ + + :type waiter_name: str + :param waiter_name: The name of the waiter. The name should match + the name (including the casing) of the key name in the waiter + model file (typically this is CamelCasing). + + :type waiter_model: botocore.waiter.WaiterModel + :param waiter_model: The model for the waiter configuration. + + :type client: botocore.client.BaseClient + :param client: The botocore client associated with the service. + + :rtype: botocore.waiter.Waiter + :return: The waiter object. + + """ + single_waiter_config = waiter_model.get_waiter(waiter_name) + operation_name = xform_name(single_waiter_config.operation) + operation_method = NormalizedOperationMethod( + getattr(client, operation_name) + ) + + # Create a new wait method that will serve as a proxy to the underlying + # Waiter.wait method. This is needed to attach a docstring to the + # method. + def wait(self, **kwargs): + Waiter.wait(self, **kwargs) + + wait.__doc__ = WaiterDocstring( + waiter_name=waiter_name, + event_emitter=client.meta.events, + service_model=client.meta.service_model, + service_waiter_model=waiter_model, + include_signature=False, + ) + + # Rename the waiter class based on the type of waiter. + waiter_class_name = str( + f'{get_service_module_name(client.meta.service_model)}.Waiter.{waiter_name}' + ) + + # Create the new waiter class + documented_waiter_cls = type(waiter_class_name, (Waiter,), {'wait': wait}) + + # Return an instance of the new waiter class. + return documented_waiter_cls( + waiter_name, single_waiter_config, operation_method + ) + + +def is_valid_waiter_error(response): + error = response.get('Error') + if isinstance(error, dict) and 'Code' in error: + return True + return False + + +class NormalizedOperationMethod: + def __init__(self, client_method): + self._client_method = client_method + + def __call__(self, **kwargs): + try: + return self._client_method(**kwargs) + except ClientError as e: + return e.response + + +class WaiterModel: + SUPPORTED_VERSION = 2 + + def __init__(self, waiter_config): + """ + + Note that the WaiterModel takes ownership of the waiter_config. + It may or may not mutate the waiter_config. If this is a concern, + it is best to make a copy of the waiter config before passing it to + the WaiterModel. + + :type waiter_config: dict + :param waiter_config: The loaded waiter config + from the *.waiters.json file. This can be + obtained from a botocore Loader object as well. + + """ + self._waiter_config = waiter_config['waiters'] + + # These are part of the public API. Changing these + # will result in having to update the consuming code, + # so don't change unless you really need to. + version = waiter_config.get('version', 'unknown') + self._verify_supported_version(version) + self.version = version + self.waiter_names = list(sorted(waiter_config['waiters'].keys())) + + def _verify_supported_version(self, version): + if version != self.SUPPORTED_VERSION: + raise WaiterConfigError( + error_msg=( + "Unsupported waiter version, supported version " + f"must be: {self.SUPPORTED_VERSION}, but version " + f"of waiter config is: {version}" + ) + ) + + def get_waiter(self, waiter_name): + try: + single_waiter_config = self._waiter_config[waiter_name] + except KeyError: + raise ValueError(f"Waiter does not exist: {waiter_name}") + return SingleWaiterConfig(single_waiter_config) + + +class SingleWaiterConfig: + """Represents the waiter configuration for a single waiter. + + A single waiter is considered the configuration for a single + value associated with a named waiter (i.e TableExists). + + """ + + def __init__(self, single_waiter_config): + self._config = single_waiter_config + + # These attributes are part of the public API. + self.description = single_waiter_config.get('description', '') + # Per the spec, these three fields are required. + self.operation = single_waiter_config['operation'] + self.delay = single_waiter_config['delay'] + self.max_attempts = single_waiter_config['maxAttempts'] + + @property + def acceptors(self): + acceptors = [] + for acceptor_config in self._config['acceptors']: + acceptor = AcceptorConfig(acceptor_config) + acceptors.append(acceptor) + return acceptors + + +class AcceptorConfig: + def __init__(self, config): + self.state = config['state'] + self.matcher = config['matcher'] + self.expected = config['expected'] + self.argument = config.get('argument') + self.matcher_func = self._create_matcher_func() + + @property + def explanation(self): + if self.matcher == 'path': + return f'For expression "{self.argument}" we matched expected path: "{self.expected}"' + elif self.matcher == 'pathAll': + return ( + f'For expression "{self.argument}" all members matched ' + f'expected path: "{self.expected}"' + ) + elif self.matcher == 'pathAny': + return ( + f'For expression "{self.argument}" we matched expected ' + f'path: "{self.expected}" at least once' + ) + elif self.matcher == 'status': + return f'Matched expected HTTP status code: {self.expected}' + elif self.matcher == 'error': + return f'Matched expected service error code: {self.expected}' + else: + return f'No explanation for unknown waiter type: "{self.matcher}"' + + def _create_matcher_func(self): + # An acceptor function is a callable that takes a single value. The + # parsed AWS response. Note that the parsed error response is also + # provided in the case of errors, so it's entirely possible to + # handle all the available matcher capabilities in the future. + # There's only three supported matchers, so for now, this is all + # contained to a single method. If this grows, we can expand this + # out to separate methods or even objects. + + if self.matcher == 'path': + return self._create_path_matcher() + elif self.matcher == 'pathAll': + return self._create_path_all_matcher() + elif self.matcher == 'pathAny': + return self._create_path_any_matcher() + elif self.matcher == 'status': + return self._create_status_matcher() + elif self.matcher == 'error': + return self._create_error_matcher() + else: + raise WaiterConfigError( + error_msg=f"Unknown acceptor: {self.matcher}" + ) + + def _create_path_matcher(self): + expression = jmespath.compile(self.argument) + expected = self.expected + + def acceptor_matches(response): + if is_valid_waiter_error(response): + return + return expression.search(response) == expected + + return acceptor_matches + + def _create_path_all_matcher(self): + expression = jmespath.compile(self.argument) + expected = self.expected + + def acceptor_matches(response): + if is_valid_waiter_error(response): + return + result = expression.search(response) + if not isinstance(result, list) or not result: + # pathAll matcher must result in a list. + # Also we require at least one element in the list, + # that is, an empty list should not result in this + # acceptor match. + return False + for element in result: + if element != expected: + return False + return True + + return acceptor_matches + + def _create_path_any_matcher(self): + expression = jmespath.compile(self.argument) + expected = self.expected + + def acceptor_matches(response): + if is_valid_waiter_error(response): + return + result = expression.search(response) + if not isinstance(result, list) or not result: + # pathAny matcher must result in a list. + # Also we require at least one element in the list, + # that is, an empty list should not result in this + # acceptor match. + return False + for element in result: + if element == expected: + return True + return False + + return acceptor_matches + + def _create_status_matcher(self): + expected = self.expected + + def acceptor_matches(response): + # We don't have any requirements on the expected incoming data + # other than it is a dict, so we don't assume there's + # a ResponseMetadata.HTTPStatusCode. + status_code = response.get('ResponseMetadata', {}).get( + 'HTTPStatusCode' + ) + return status_code == expected + + return acceptor_matches + + def _create_error_matcher(self): + expected = self.expected + + def acceptor_matches(response): + # When the client encounters an error, it will normally raise + # an exception. However, the waiter implementation will catch + # this exception, and instead send us the parsed error + # response. So response is still a dictionary, and in the case + # of an error response will contain the "Error" and + # "ResponseMetadata" key. + # When expected is True, accept any error code. + # When expected is False, check if any errors were encountered. + # Otherwise, check for a specific AWS error code. + if expected is True: + return "Error" in response and "Code" in response["Error"] + elif expected is False: + return "Error" not in response + else: + return response.get("Error", {}).get("Code", "") == expected + + return acceptor_matches + + +class Waiter: + def __init__(self, name, config, operation_method): + """ + + :type name: string + :param name: The name of the waiter + + :type config: botocore.waiter.SingleWaiterConfig + :param config: The configuration for the waiter. + + :type operation_method: callable + :param operation_method: A callable that accepts **kwargs + and returns a response. For example, this can be + a method from a botocore client. + + """ + self._operation_method = operation_method + # The two attributes are exposed to allow for introspection + # and documentation. + self.name = name + self.config = config + + @with_current_context(partial(register_feature_id, 'WAITER')) + def wait(self, **kwargs): + acceptors = list(self.config.acceptors) + current_state = 'waiting' + # pop the invocation specific config + config = kwargs.pop('WaiterConfig', {}) + sleep_amount = config.get('Delay', self.config.delay) + max_attempts = config.get('MaxAttempts', self.config.max_attempts) + last_matched_acceptor = None + num_attempts = 0 + + while True: + response = self._operation_method(**kwargs) + num_attempts += 1 + for acceptor in acceptors: + if acceptor.matcher_func(response): + last_matched_acceptor = acceptor + current_state = acceptor.state + break + else: + # If none of the acceptors matched, we should + # transition to the failure state if an error + # response was received. + if is_valid_waiter_error(response): + # Transition to a failure state, which we + # can just handle here by raising an exception. + raise WaiterError( + name=self.name, + reason='An error occurred ({}): {}'.format( + response['Error'].get('Code', 'Unknown'), + response['Error'].get('Message', 'Unknown'), + ), + last_response=response, + ) + if current_state == 'success': + logger.debug( + "Waiting complete, waiter matched the success state." + ) + return + if current_state == 'failure': + reason = f'Waiter encountered a terminal failure state: {acceptor.explanation}' + raise WaiterError( + name=self.name, + reason=reason, + last_response=response, + ) + if num_attempts >= max_attempts: + if last_matched_acceptor is None: + reason = 'Max attempts exceeded' + else: + reason = ( + f'Max attempts exceeded. Previously accepted state: ' + f'{acceptor.explanation}' + ) + raise WaiterError( + name=self.name, + reason=reason, + last_response=response, + ) + time.sleep(sleep_amount) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/_termui_impl.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/_termui_impl.py new file mode 100644 index 0000000000000000000000000000000000000000..51fd9bf358f0ee8dedceb88efa8c6a60dc40d4a8 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/_termui_impl.py @@ -0,0 +1,839 @@ +""" +This module contains implementations for the termui module. To keep the +import time of Click down, some infrequently used functionality is +placed in this module and only imported as needed. +""" + +from __future__ import annotations + +import collections.abc as cabc +import contextlib +import math +import os +import shlex +import sys +import time +import typing as t +from gettext import gettext as _ +from io import StringIO +from pathlib import Path +from shutil import which +from types import TracebackType + +from ._compat import _default_text_stdout +from ._compat import CYGWIN +from ._compat import get_best_encoding +from ._compat import isatty +from ._compat import open_stream +from ._compat import strip_ansi +from ._compat import term_len +from ._compat import WIN +from .exceptions import ClickException +from .utils import echo + +V = t.TypeVar("V") + +if os.name == "nt": + BEFORE_BAR = "\r" + AFTER_BAR = "\n" +else: + BEFORE_BAR = "\r\033[?25l" + AFTER_BAR = "\033[?25h\n" + + +class ProgressBar(t.Generic[V]): + def __init__( + self, + iterable: cabc.Iterable[V] | None, + length: int | None = None, + fill_char: str = "#", + empty_char: str = " ", + bar_template: str = "%(bar)s", + info_sep: str = " ", + hidden: bool = False, + show_eta: bool = True, + show_percent: bool | None = None, + show_pos: bool = False, + item_show_func: t.Callable[[V | None], str | None] | None = None, + label: str | None = None, + file: t.TextIO | None = None, + color: bool | None = None, + update_min_steps: int = 1, + width: int = 30, + ) -> None: + self.fill_char = fill_char + self.empty_char = empty_char + self.bar_template = bar_template + self.info_sep = info_sep + self.hidden = hidden + self.show_eta = show_eta + self.show_percent = show_percent + self.show_pos = show_pos + self.item_show_func = item_show_func + self.label: str = label or "" + + if file is None: + file = _default_text_stdout() + + # There are no standard streams attached to write to. For example, + # pythonw on Windows. + if file is None: + file = StringIO() + + self.file = file + self.color = color + self.update_min_steps = update_min_steps + self._completed_intervals = 0 + self.width: int = width + self.autowidth: bool = width == 0 + + if length is None: + from operator import length_hint + + length = length_hint(iterable, -1) + + if length == -1: + length = None + if iterable is None: + if length is None: + raise TypeError("iterable or length is required") + iterable = t.cast("cabc.Iterable[V]", range(length)) + self.iter: cabc.Iterable[V] = iter(iterable) + self.length = length + self.pos: int = 0 + self.avg: list[float] = [] + self.last_eta: float + self.start: float + self.start = self.last_eta = time.time() + self.eta_known: bool = False + self.finished: bool = False + self.max_width: int | None = None + self.entered: bool = False + self.current_item: V | None = None + self._is_atty = isatty(self.file) + self._last_line: str | None = None + + def __enter__(self) -> ProgressBar[V]: + self.entered = True + self.render_progress() + return self + + def __exit__( + self, + exc_type: type[BaseException] | None, + exc_value: BaseException | None, + tb: TracebackType | None, + ) -> None: + self.render_finish() + + def __iter__(self) -> cabc.Iterator[V]: + if not self.entered: + raise RuntimeError("You need to use progress bars in a with block.") + self.render_progress() + return self.generator() + + def __next__(self) -> V: + # Iteration is defined in terms of a generator function, + # returned by iter(self); use that to define next(). This works + # because `self.iter` is an iterable consumed by that generator, + # so it is re-entry safe. Calling `next(self.generator())` + # twice works and does "what you want". + return next(iter(self)) + + def render_finish(self) -> None: + if self.hidden or not self._is_atty: + return + self.file.write(AFTER_BAR) + self.file.flush() + + @property + def pct(self) -> float: + if self.finished: + return 1.0 + return min(self.pos / (float(self.length or 1) or 1), 1.0) + + @property + def time_per_iteration(self) -> float: + if not self.avg: + return 0.0 + return sum(self.avg) / float(len(self.avg)) + + @property + def eta(self) -> float: + if self.length is not None and not self.finished: + return self.time_per_iteration * (self.length - self.pos) + return 0.0 + + def format_eta(self) -> str: + if self.eta_known: + t = int(self.eta) + seconds = t % 60 + t //= 60 + minutes = t % 60 + t //= 60 + hours = t % 24 + t //= 24 + if t > 0: + return f"{t}d {hours:02}:{minutes:02}:{seconds:02}" + else: + return f"{hours:02}:{minutes:02}:{seconds:02}" + return "" + + def format_pos(self) -> str: + pos = str(self.pos) + if self.length is not None: + pos += f"/{self.length}" + return pos + + def format_pct(self) -> str: + return f"{int(self.pct * 100): 4}%"[1:] + + def format_bar(self) -> str: + if self.length is not None: + bar_length = int(self.pct * self.width) + bar = self.fill_char * bar_length + bar += self.empty_char * (self.width - bar_length) + elif self.finished: + bar = self.fill_char * self.width + else: + chars = list(self.empty_char * (self.width or 1)) + if self.time_per_iteration != 0: + chars[ + int( + (math.cos(self.pos * self.time_per_iteration) / 2.0 + 0.5) + * self.width + ) + ] = self.fill_char + bar = "".join(chars) + return bar + + def format_progress_line(self) -> str: + show_percent = self.show_percent + + info_bits = [] + if self.length is not None and show_percent is None: + show_percent = not self.show_pos + + if self.show_pos: + info_bits.append(self.format_pos()) + if show_percent: + info_bits.append(self.format_pct()) + if self.show_eta and self.eta_known and not self.finished: + info_bits.append(self.format_eta()) + if self.item_show_func is not None: + item_info = self.item_show_func(self.current_item) + if item_info is not None: + info_bits.append(item_info) + + return ( + self.bar_template + % { + "label": self.label, + "bar": self.format_bar(), + "info": self.info_sep.join(info_bits), + } + ).rstrip() + + def render_progress(self) -> None: + import shutil + + if self.hidden: + return + + if not self._is_atty: + # Only output the label once if the output is not a TTY. + if self._last_line != self.label: + self._last_line = self.label + echo(self.label, file=self.file, color=self.color) + return + + buf = [] + # Update width in case the terminal has been resized + if self.autowidth: + old_width = self.width + self.width = 0 + clutter_length = term_len(self.format_progress_line()) + new_width = max(0, shutil.get_terminal_size().columns - clutter_length) + if new_width < old_width and self.max_width is not None: + buf.append(BEFORE_BAR) + buf.append(" " * self.max_width) + self.max_width = new_width + self.width = new_width + + clear_width = self.width + if self.max_width is not None: + clear_width = self.max_width + + buf.append(BEFORE_BAR) + line = self.format_progress_line() + line_len = term_len(line) + if self.max_width is None or self.max_width < line_len: + self.max_width = line_len + + buf.append(line) + buf.append(" " * (clear_width - line_len)) + line = "".join(buf) + # Render the line only if it changed. + + if line != self._last_line: + self._last_line = line + echo(line, file=self.file, color=self.color, nl=False) + self.file.flush() + + def make_step(self, n_steps: int) -> None: + self.pos += n_steps + if self.length is not None and self.pos >= self.length: + self.finished = True + + if (time.time() - self.last_eta) < 1.0: + return + + self.last_eta = time.time() + + # self.avg is a rolling list of length <= 7 of steps where steps are + # defined as time elapsed divided by the total progress through + # self.length. + if self.pos: + step = (time.time() - self.start) / self.pos + else: + step = time.time() - self.start + + self.avg = self.avg[-6:] + [step] + + self.eta_known = self.length is not None + + def update(self, n_steps: int, current_item: V | None = None) -> None: + """Update the progress bar by advancing a specified number of + steps, and optionally set the ``current_item`` for this new + position. + + :param n_steps: Number of steps to advance. + :param current_item: Optional item to set as ``current_item`` + for the updated position. + + .. versionchanged:: 8.0 + Added the ``current_item`` optional parameter. + + .. versionchanged:: 8.0 + Only render when the number of steps meets the + ``update_min_steps`` threshold. + """ + if current_item is not None: + self.current_item = current_item + + self._completed_intervals += n_steps + + if self._completed_intervals >= self.update_min_steps: + self.make_step(self._completed_intervals) + self.render_progress() + self._completed_intervals = 0 + + def finish(self) -> None: + self.eta_known = False + self.current_item = None + self.finished = True + + def generator(self) -> cabc.Iterator[V]: + """Return a generator which yields the items added to the bar + during construction, and updates the progress bar *after* the + yielded block returns. + """ + # WARNING: the iterator interface for `ProgressBar` relies on + # this and only works because this is a simple generator which + # doesn't create or manage additional state. If this function + # changes, the impact should be evaluated both against + # `iter(bar)` and `next(bar)`. `next()` in particular may call + # `self.generator()` repeatedly, and this must remain safe in + # order for that interface to work. + if not self.entered: + raise RuntimeError("You need to use progress bars in a with block.") + + if not self._is_atty: + yield from self.iter + else: + for rv in self.iter: + self.current_item = rv + + # This allows show_item_func to be updated before the + # item is processed. Only trigger at the beginning of + # the update interval. + if self._completed_intervals == 0: + self.render_progress() + + yield rv + self.update(1) + + self.finish() + self.render_progress() + + +def pager(generator: cabc.Iterable[str], color: bool | None = None) -> None: + """Decide what method to use for paging through text.""" + stdout = _default_text_stdout() + + # There are no standard streams attached to write to. For example, + # pythonw on Windows. + if stdout is None: + stdout = StringIO() + + if not isatty(sys.stdin) or not isatty(stdout): + return _nullpager(stdout, generator, color) + + # Split and normalize the pager command into parts. + pager_cmd_parts = shlex.split(os.environ.get("PAGER", ""), posix=False) + if pager_cmd_parts: + if WIN: + if _tempfilepager(generator, pager_cmd_parts, color): + return + elif _pipepager(generator, pager_cmd_parts, color): + return + + if os.environ.get("TERM") in ("dumb", "emacs"): + return _nullpager(stdout, generator, color) + if (WIN or sys.platform.startswith("os2")) and _tempfilepager( + generator, ["more"], color + ): + return + if _pipepager(generator, ["less"], color): + return + + import tempfile + + fd, filename = tempfile.mkstemp() + os.close(fd) + try: + if _pipepager(generator, ["more"], color): + return + return _nullpager(stdout, generator, color) + finally: + os.unlink(filename) + + +def _pipepager( + generator: cabc.Iterable[str], cmd_parts: list[str], color: bool | None +) -> bool: + """Page through text by feeding it to another program. Invoking a + pager through this might support colors. + + Returns `True` if the command was found, `False` otherwise and thus another + pager should be attempted. + """ + # Split the command into the invoked CLI and its parameters. + if not cmd_parts: + return False + cmd = cmd_parts[0] + cmd_params = cmd_parts[1:] + + cmd_filepath = which(cmd) + if not cmd_filepath: + return False + # Resolves symlinks and produces a normalized absolute path string. + cmd_path = Path(cmd_filepath).resolve() + cmd_name = cmd_path.name + + import subprocess + + # Make a local copy of the environment to not affect the global one. + env = dict(os.environ) + + # If we're piping to less and the user hasn't decided on colors, we enable + # them by default we find the -R flag in the command line arguments. + if color is None and cmd_name == "less": + less_flags = f"{os.environ.get('LESS', '')}{' '.join(cmd_params)}" + if not less_flags: + env["LESS"] = "-R" + color = True + elif "r" in less_flags or "R" in less_flags: + color = True + + c = subprocess.Popen( + [str(cmd_path)] + cmd_params, + shell=True, + stdin=subprocess.PIPE, + env=env, + errors="replace", + text=True, + ) + assert c.stdin is not None + try: + for text in generator: + if not color: + text = strip_ansi(text) + + c.stdin.write(text) + except BrokenPipeError: + # In case the pager exited unexpectedly, ignore the broken pipe error. + pass + except Exception as e: + # In case there is an exception we want to close the pager immediately + # and let the caller handle it. + # Otherwise the pager will keep running, and the user may not notice + # the error message, or worse yet it may leave the terminal in a broken state. + c.terminate() + raise e + finally: + # We must close stdin and wait for the pager to exit before we continue + try: + c.stdin.close() + # Close implies flush, so it might throw a BrokenPipeError if the pager + # process exited already. + except BrokenPipeError: + pass + + # Less doesn't respect ^C, but catches it for its own UI purposes (aborting + # search or other commands inside less). + # + # That means when the user hits ^C, the parent process (click) terminates, + # but less is still alive, paging the output and messing up the terminal. + # + # If the user wants to make the pager exit on ^C, they should set + # `LESS='-K'`. It's not our decision to make. + while True: + try: + c.wait() + except KeyboardInterrupt: + pass + else: + break + + return True + + +def _tempfilepager( + generator: cabc.Iterable[str], cmd_parts: list[str], color: bool | None +) -> bool: + """Page through text by invoking a program on a temporary file. + + Returns `True` if the command was found, `False` otherwise and thus another + pager should be attempted. + """ + # Split the command into the invoked CLI and its parameters. + if not cmd_parts: + return False + cmd = cmd_parts[0] + + cmd_filepath = which(cmd) + if not cmd_filepath: + return False + # Resolves symlinks and produces a normalized absolute path string. + cmd_path = Path(cmd_filepath).resolve() + + import subprocess + import tempfile + + fd, filename = tempfile.mkstemp() + # TODO: This never terminates if the passed generator never terminates. + text = "".join(generator) + if not color: + text = strip_ansi(text) + encoding = get_best_encoding(sys.stdout) + with open_stream(filename, "wb")[0] as f: + f.write(text.encode(encoding)) + try: + subprocess.call([str(cmd_path), filename]) + except OSError: + # Command not found + pass + finally: + os.close(fd) + os.unlink(filename) + + return True + + +def _nullpager( + stream: t.TextIO, generator: cabc.Iterable[str], color: bool | None +) -> None: + """Simply print unformatted text. This is the ultimate fallback.""" + for text in generator: + if not color: + text = strip_ansi(text) + stream.write(text) + + +class Editor: + def __init__( + self, + editor: str | None = None, + env: cabc.Mapping[str, str] | None = None, + require_save: bool = True, + extension: str = ".txt", + ) -> None: + self.editor = editor + self.env = env + self.require_save = require_save + self.extension = extension + + def get_editor(self) -> str: + if self.editor is not None: + return self.editor + for key in "VISUAL", "EDITOR": + rv = os.environ.get(key) + if rv: + return rv + if WIN: + return "notepad" + for editor in "sensible-editor", "vim", "nano": + if which(editor) is not None: + return editor + return "vi" + + def edit_files(self, filenames: cabc.Iterable[str]) -> None: + import subprocess + + editor = self.get_editor() + environ: dict[str, str] | None = None + + if self.env: + environ = os.environ.copy() + environ.update(self.env) + + exc_filename = " ".join(f'"{filename}"' for filename in filenames) + + try: + c = subprocess.Popen( + args=f"{editor} {exc_filename}", env=environ, shell=True + ) + exit_code = c.wait() + if exit_code != 0: + raise ClickException( + _("{editor}: Editing failed").format(editor=editor) + ) + except OSError as e: + raise ClickException( + _("{editor}: Editing failed: {e}").format(editor=editor, e=e) + ) from e + + @t.overload + def edit(self, text: bytes | bytearray) -> bytes | None: ... + + # We cannot know whether or not the type expected is str or bytes when None + # is passed, so str is returned as that was what was done before. + @t.overload + def edit(self, text: str | None) -> str | None: ... + + def edit(self, text: str | bytes | bytearray | None) -> str | bytes | None: + import tempfile + + if text is None: + data = b"" + elif isinstance(text, (bytes, bytearray)): + data = text + else: + if text and not text.endswith("\n"): + text += "\n" + + if WIN: + data = text.replace("\n", "\r\n").encode("utf-8-sig") + else: + data = text.encode("utf-8") + + fd, name = tempfile.mkstemp(prefix="editor-", suffix=self.extension) + f: t.BinaryIO + + try: + with os.fdopen(fd, "wb") as f: + f.write(data) + + # If the filesystem resolution is 1 second, like Mac OS + # 10.12 Extended, or 2 seconds, like FAT32, and the editor + # closes very fast, require_save can fail. Set the modified + # time to be 2 seconds in the past to work around this. + os.utime(name, (os.path.getatime(name), os.path.getmtime(name) - 2)) + # Depending on the resolution, the exact value might not be + # recorded, so get the new recorded value. + timestamp = os.path.getmtime(name) + + self.edit_files((name,)) + + if self.require_save and os.path.getmtime(name) == timestamp: + return None + + with open(name, "rb") as f: + rv = f.read() + + if isinstance(text, (bytes, bytearray)): + return rv + + return rv.decode("utf-8-sig").replace("\r\n", "\n") + finally: + os.unlink(name) + + +def open_url(url: str, wait: bool = False, locate: bool = False) -> int: + import subprocess + + def _unquote_file(url: str) -> str: + from urllib.parse import unquote + + if url.startswith("file://"): + url = unquote(url[7:]) + + return url + + if sys.platform == "darwin": + args = ["open"] + if wait: + args.append("-W") + if locate: + args.append("-R") + args.append(_unquote_file(url)) + null = open("/dev/null", "w") + try: + return subprocess.Popen(args, stderr=null).wait() + finally: + null.close() + elif WIN: + if locate: + url = _unquote_file(url) + args = ["explorer", f"/select,{url}"] + else: + args = ["start"] + if wait: + args.append("/WAIT") + args.append("") + args.append(url) + try: + return subprocess.call(args) + except OSError: + # Command not found + return 127 + elif CYGWIN: + if locate: + url = _unquote_file(url) + args = ["cygstart", os.path.dirname(url)] + else: + args = ["cygstart"] + if wait: + args.append("-w") + args.append(url) + try: + return subprocess.call(args) + except OSError: + # Command not found + return 127 + + try: + if locate: + url = os.path.dirname(_unquote_file(url)) or "." + else: + url = _unquote_file(url) + c = subprocess.Popen(["xdg-open", url]) + if wait: + return c.wait() + return 0 + except OSError: + if url.startswith(("http://", "https://")) and not locate and not wait: + import webbrowser + + webbrowser.open(url) + return 0 + return 1 + + +def _translate_ch_to_exc(ch: str) -> None: + if ch == "\x03": + raise KeyboardInterrupt() + + if ch == "\x04" and not WIN: # Unix-like, Ctrl+D + raise EOFError() + + if ch == "\x1a" and WIN: # Windows, Ctrl+Z + raise EOFError() + + return None + + +if sys.platform == "win32": + import msvcrt + + @contextlib.contextmanager + def raw_terminal() -> cabc.Iterator[int]: + yield -1 + + def getchar(echo: bool) -> str: + # The function `getch` will return a bytes object corresponding to + # the pressed character. Since Windows 10 build 1803, it will also + # return \x00 when called a second time after pressing a regular key. + # + # `getwch` does not share this probably-bugged behavior. Moreover, it + # returns a Unicode object by default, which is what we want. + # + # Either of these functions will return \x00 or \xe0 to indicate + # a special key, and you need to call the same function again to get + # the "rest" of the code. The fun part is that \u00e0 is + # "latin small letter a with grave", so if you type that on a French + # keyboard, you _also_ get a \xe0. + # E.g., consider the Up arrow. This returns \xe0 and then \x48. The + # resulting Unicode string reads as "a with grave" + "capital H". + # This is indistinguishable from when the user actually types + # "a with grave" and then "capital H". + # + # When \xe0 is returned, we assume it's part of a special-key sequence + # and call `getwch` again, but that means that when the user types + # the \u00e0 character, `getchar` doesn't return until a second + # character is typed. + # The alternative is returning immediately, but that would mess up + # cross-platform handling of arrow keys and others that start with + # \xe0. Another option is using `getch`, but then we can't reliably + # read non-ASCII characters, because return values of `getch` are + # limited to the current 8-bit codepage. + # + # Anyway, Click doesn't claim to do this Right(tm), and using `getwch` + # is doing the right thing in more situations than with `getch`. + + if echo: + func = t.cast(t.Callable[[], str], msvcrt.getwche) + else: + func = t.cast(t.Callable[[], str], msvcrt.getwch) + + rv = func() + + if rv in ("\x00", "\xe0"): + # \x00 and \xe0 are control characters that indicate special key, + # see above. + rv += func() + + _translate_ch_to_exc(rv) + return rv + +else: + import termios + import tty + + @contextlib.contextmanager + def raw_terminal() -> cabc.Iterator[int]: + f: t.TextIO | None + fd: int + + if not isatty(sys.stdin): + f = open("/dev/tty") + fd = f.fileno() + else: + fd = sys.stdin.fileno() + f = None + + try: + old_settings = termios.tcgetattr(fd) + + try: + tty.setraw(fd) + yield fd + finally: + termios.tcsetattr(fd, termios.TCSADRAIN, old_settings) + sys.stdout.flush() + + if f is not None: + f.close() + except termios.error: + pass + + def getchar(echo: bool) -> str: + with raw_terminal() as fd: + ch = os.read(fd, 32).decode(get_best_encoding(sys.stdin), "replace") + + if echo and isatty(sys.stdout): + sys.stdout.write(ch) + + _translate_ch_to_exc(ch) + return ch diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/_winconsole.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/_winconsole.py new file mode 100644 index 0000000000000000000000000000000000000000..e56c7c6ae7ee7e577db6ace659cd58c0c652074c --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/_winconsole.py @@ -0,0 +1,296 @@ +# This module is based on the excellent work by Adam Bartoš who +# provided a lot of what went into the implementation here in +# the discussion to issue1602 in the Python bug tracker. +# +# There are some general differences in regards to how this works +# compared to the original patches as we do not need to patch +# the entire interpreter but just work in our little world of +# echo and prompt. +from __future__ import annotations + +import collections.abc as cabc +import io +import sys +import time +import typing as t +from ctypes import Array +from ctypes import byref +from ctypes import c_char +from ctypes import c_char_p +from ctypes import c_int +from ctypes import c_ssize_t +from ctypes import c_ulong +from ctypes import c_void_p +from ctypes import POINTER +from ctypes import py_object +from ctypes import Structure +from ctypes.wintypes import DWORD +from ctypes.wintypes import HANDLE +from ctypes.wintypes import LPCWSTR +from ctypes.wintypes import LPWSTR + +from ._compat import _NonClosingTextIOWrapper + +assert sys.platform == "win32" +import msvcrt # noqa: E402 +from ctypes import windll # noqa: E402 +from ctypes import WINFUNCTYPE # noqa: E402 + +c_ssize_p = POINTER(c_ssize_t) + +kernel32 = windll.kernel32 +GetStdHandle = kernel32.GetStdHandle +ReadConsoleW = kernel32.ReadConsoleW +WriteConsoleW = kernel32.WriteConsoleW +GetConsoleMode = kernel32.GetConsoleMode +GetLastError = kernel32.GetLastError +GetCommandLineW = WINFUNCTYPE(LPWSTR)(("GetCommandLineW", windll.kernel32)) +CommandLineToArgvW = WINFUNCTYPE(POINTER(LPWSTR), LPCWSTR, POINTER(c_int))( + ("CommandLineToArgvW", windll.shell32) +) +LocalFree = WINFUNCTYPE(c_void_p, c_void_p)(("LocalFree", windll.kernel32)) + +STDIN_HANDLE = GetStdHandle(-10) +STDOUT_HANDLE = GetStdHandle(-11) +STDERR_HANDLE = GetStdHandle(-12) + +PyBUF_SIMPLE = 0 +PyBUF_WRITABLE = 1 + +ERROR_SUCCESS = 0 +ERROR_NOT_ENOUGH_MEMORY = 8 +ERROR_OPERATION_ABORTED = 995 + +STDIN_FILENO = 0 +STDOUT_FILENO = 1 +STDERR_FILENO = 2 + +EOF = b"\x1a" +MAX_BYTES_WRITTEN = 32767 + +if t.TYPE_CHECKING: + try: + # Using `typing_extensions.Buffer` instead of `collections.abc` + # on Windows for some reason does not have `Sized` implemented. + from collections.abc import Buffer # type: ignore + except ImportError: + from typing_extensions import Buffer + +try: + from ctypes import pythonapi +except ImportError: + # On PyPy we cannot get buffers so our ability to operate here is + # severely limited. + get_buffer = None +else: + + class Py_buffer(Structure): + _fields_ = [ # noqa: RUF012 + ("buf", c_void_p), + ("obj", py_object), + ("len", c_ssize_t), + ("itemsize", c_ssize_t), + ("readonly", c_int), + ("ndim", c_int), + ("format", c_char_p), + ("shape", c_ssize_p), + ("strides", c_ssize_p), + ("suboffsets", c_ssize_p), + ("internal", c_void_p), + ] + + PyObject_GetBuffer = pythonapi.PyObject_GetBuffer + PyBuffer_Release = pythonapi.PyBuffer_Release + + def get_buffer(obj: Buffer, writable: bool = False) -> Array[c_char]: + buf = Py_buffer() + flags: int = PyBUF_WRITABLE if writable else PyBUF_SIMPLE + PyObject_GetBuffer(py_object(obj), byref(buf), flags) + + try: + buffer_type = c_char * buf.len + out: Array[c_char] = buffer_type.from_address(buf.buf) + return out + finally: + PyBuffer_Release(byref(buf)) + + +class _WindowsConsoleRawIOBase(io.RawIOBase): + def __init__(self, handle: int | None) -> None: + self.handle = handle + + def isatty(self) -> t.Literal[True]: + super().isatty() + return True + + +class _WindowsConsoleReader(_WindowsConsoleRawIOBase): + def readable(self) -> t.Literal[True]: + return True + + def readinto(self, b: Buffer) -> int: + bytes_to_be_read = len(b) + if not bytes_to_be_read: + return 0 + elif bytes_to_be_read % 2: + raise ValueError( + "cannot read odd number of bytes from UTF-16-LE encoded console" + ) + + buffer = get_buffer(b, writable=True) + code_units_to_be_read = bytes_to_be_read // 2 + code_units_read = c_ulong() + + rv = ReadConsoleW( + HANDLE(self.handle), + buffer, + code_units_to_be_read, + byref(code_units_read), + None, + ) + if GetLastError() == ERROR_OPERATION_ABORTED: + # wait for KeyboardInterrupt + time.sleep(0.1) + if not rv: + raise OSError(f"Windows error: {GetLastError()}") + + if buffer[0] == EOF: + return 0 + return 2 * code_units_read.value + + +class _WindowsConsoleWriter(_WindowsConsoleRawIOBase): + def writable(self) -> t.Literal[True]: + return True + + @staticmethod + def _get_error_message(errno: int) -> str: + if errno == ERROR_SUCCESS: + return "ERROR_SUCCESS" + elif errno == ERROR_NOT_ENOUGH_MEMORY: + return "ERROR_NOT_ENOUGH_MEMORY" + return f"Windows error {errno}" + + def write(self, b: Buffer) -> int: + bytes_to_be_written = len(b) + buf = get_buffer(b) + code_units_to_be_written = min(bytes_to_be_written, MAX_BYTES_WRITTEN) // 2 + code_units_written = c_ulong() + + WriteConsoleW( + HANDLE(self.handle), + buf, + code_units_to_be_written, + byref(code_units_written), + None, + ) + bytes_written = 2 * code_units_written.value + + if bytes_written == 0 and bytes_to_be_written > 0: + raise OSError(self._get_error_message(GetLastError())) + return bytes_written + + +class ConsoleStream: + def __init__(self, text_stream: t.TextIO, byte_stream: t.BinaryIO) -> None: + self._text_stream = text_stream + self.buffer = byte_stream + + @property + def name(self) -> str: + return self.buffer.name + + def write(self, x: t.AnyStr) -> int: + if isinstance(x, str): + return self._text_stream.write(x) + try: + self.flush() + except Exception: + pass + return self.buffer.write(x) + + def writelines(self, lines: cabc.Iterable[t.AnyStr]) -> None: + for line in lines: + self.write(line) + + def __getattr__(self, name: str) -> t.Any: + return getattr(self._text_stream, name) + + def isatty(self) -> bool: + return self.buffer.isatty() + + def __repr__(self) -> str: + return f"" + + +def _get_text_stdin(buffer_stream: t.BinaryIO) -> t.TextIO: + text_stream = _NonClosingTextIOWrapper( + io.BufferedReader(_WindowsConsoleReader(STDIN_HANDLE)), + "utf-16-le", + "strict", + line_buffering=True, + ) + return t.cast(t.TextIO, ConsoleStream(text_stream, buffer_stream)) + + +def _get_text_stdout(buffer_stream: t.BinaryIO) -> t.TextIO: + text_stream = _NonClosingTextIOWrapper( + io.BufferedWriter(_WindowsConsoleWriter(STDOUT_HANDLE)), + "utf-16-le", + "strict", + line_buffering=True, + ) + return t.cast(t.TextIO, ConsoleStream(text_stream, buffer_stream)) + + +def _get_text_stderr(buffer_stream: t.BinaryIO) -> t.TextIO: + text_stream = _NonClosingTextIOWrapper( + io.BufferedWriter(_WindowsConsoleWriter(STDERR_HANDLE)), + "utf-16-le", + "strict", + line_buffering=True, + ) + return t.cast(t.TextIO, ConsoleStream(text_stream, buffer_stream)) + + +_stream_factories: cabc.Mapping[int, t.Callable[[t.BinaryIO], t.TextIO]] = { + 0: _get_text_stdin, + 1: _get_text_stdout, + 2: _get_text_stderr, +} + + +def _is_console(f: t.TextIO) -> bool: + if not hasattr(f, "fileno"): + return False + + try: + fileno = f.fileno() + except (OSError, io.UnsupportedOperation): + return False + + handle = msvcrt.get_osfhandle(fileno) + return bool(GetConsoleMode(handle, byref(DWORD()))) + + +def _get_windows_console_stream( + f: t.TextIO, encoding: str | None, errors: str | None +) -> t.TextIO | None: + if ( + get_buffer is None + or encoding not in {"utf-16-le", None} + or errors not in {"strict", None} + or not _is_console(f) + ): + return None + + func = _stream_factories.get(f.fileno()) + if func is None: + return None + + b = getattr(f, "buffer", None) + + if b is None: + return None + + return func(b) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/core.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/core.py new file mode 100644 index 0000000000000000000000000000000000000000..f57ada62b195fa533387b5d06b366b17edb7d2f4 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/core.py @@ -0,0 +1,3135 @@ +from __future__ import annotations + +import collections.abc as cabc +import enum +import errno +import inspect +import os +import sys +import typing as t +from collections import abc +from collections import Counter +from contextlib import AbstractContextManager +from contextlib import contextmanager +from contextlib import ExitStack +from functools import update_wrapper +from gettext import gettext as _ +from gettext import ngettext +from itertools import repeat +from types import TracebackType + +from . import types +from .exceptions import Abort +from .exceptions import BadParameter +from .exceptions import ClickException +from .exceptions import Exit +from .exceptions import MissingParameter +from .exceptions import NoArgsIsHelpError +from .exceptions import UsageError +from .formatting import HelpFormatter +from .formatting import join_options +from .globals import pop_context +from .globals import push_context +from .parser import _flag_needs_value +from .parser import _OptionParser +from .parser import _split_opt +from .termui import confirm +from .termui import prompt +from .termui import style +from .utils import _detect_program_name +from .utils import _expand_args +from .utils import echo +from .utils import make_default_short_help +from .utils import make_str +from .utils import PacifyFlushWrapper + +if t.TYPE_CHECKING: + from .shell_completion import CompletionItem + +F = t.TypeVar("F", bound="t.Callable[..., t.Any]") +V = t.TypeVar("V") + + +def _complete_visible_commands( + ctx: Context, incomplete: str +) -> cabc.Iterator[tuple[str, Command]]: + """List all the subcommands of a group that start with the + incomplete value and aren't hidden. + + :param ctx: Invocation context for the group. + :param incomplete: Value being completed. May be empty. + """ + multi = t.cast(Group, ctx.command) + + for name in multi.list_commands(ctx): + if name.startswith(incomplete): + command = multi.get_command(ctx, name) + + if command is not None and not command.hidden: + yield name, command + + +def _check_nested_chain( + base_command: Group, cmd_name: str, cmd: Command, register: bool = False +) -> None: + if not base_command.chain or not isinstance(cmd, Group): + return + + if register: + message = ( + f"It is not possible to add the group {cmd_name!r} to another" + f" group {base_command.name!r} that is in chain mode." + ) + else: + message = ( + f"Found the group {cmd_name!r} as subcommand to another group " + f" {base_command.name!r} that is in chain mode. This is not supported." + ) + + raise RuntimeError(message) + + +def batch(iterable: cabc.Iterable[V], batch_size: int) -> list[tuple[V, ...]]: + return list(zip(*repeat(iter(iterable), batch_size), strict=False)) + + +@contextmanager +def augment_usage_errors( + ctx: Context, param: Parameter | None = None +) -> cabc.Iterator[None]: + """Context manager that attaches extra information to exceptions.""" + try: + yield + except BadParameter as e: + if e.ctx is None: + e.ctx = ctx + if param is not None and e.param is None: + e.param = param + raise + except UsageError as e: + if e.ctx is None: + e.ctx = ctx + raise + + +def iter_params_for_processing( + invocation_order: cabc.Sequence[Parameter], + declaration_order: cabc.Sequence[Parameter], +) -> list[Parameter]: + """Returns all declared parameters in the order they should be processed. + + The declared parameters are re-shuffled depending on the order in which + they were invoked, as well as the eagerness of each parameters. + + The invocation order takes precedence over the declaration order. I.e. the + order in which the user provided them to the CLI is respected. + + This behavior and its effect on callback evaluation is detailed at: + https://click.palletsprojects.com/en/stable/advanced/#callback-evaluation-order + """ + + def sort_key(item: Parameter) -> tuple[bool, float]: + try: + idx: float = invocation_order.index(item) + except ValueError: + idx = float("inf") + + return not item.is_eager, idx + + return sorted(declaration_order, key=sort_key) + + +class ParameterSource(enum.Enum): + """This is an :class:`~enum.Enum` that indicates the source of a + parameter's value. + + Use :meth:`click.Context.get_parameter_source` to get the + source for a parameter by name. + + .. versionchanged:: 8.0 + Use :class:`~enum.Enum` and drop the ``validate`` method. + + .. versionchanged:: 8.0 + Added the ``PROMPT`` value. + """ + + COMMANDLINE = enum.auto() + """The value was provided by the command line args.""" + ENVIRONMENT = enum.auto() + """The value was provided with an environment variable.""" + DEFAULT = enum.auto() + """Used the default specified by the parameter.""" + DEFAULT_MAP = enum.auto() + """Used a default provided by :attr:`Context.default_map`.""" + PROMPT = enum.auto() + """Used a prompt to confirm a default or provide a value.""" + + +class Context: + """The context is a special internal object that holds state relevant + for the script execution at every single level. It's normally invisible + to commands unless they opt-in to getting access to it. + + The context is useful as it can pass internal objects around and can + control special execution features such as reading data from + environment variables. + + A context can be used as context manager in which case it will call + :meth:`close` on teardown. + + :param command: the command class for this context. + :param parent: the parent context. + :param info_name: the info name for this invocation. Generally this + is the most descriptive name for the script or + command. For the toplevel script it is usually + the name of the script, for commands below it it's + the name of the script. + :param obj: an arbitrary object of user data. + :param auto_envvar_prefix: the prefix to use for automatic environment + variables. If this is `None` then reading + from environment variables is disabled. This + does not affect manually set environment + variables which are always read. + :param default_map: a dictionary (like object) with default values + for parameters. + :param terminal_width: the width of the terminal. The default is + inherit from parent context. If no context + defines the terminal width then auto + detection will be applied. + :param max_content_width: the maximum width for content rendered by + Click (this currently only affects help + pages). This defaults to 80 characters if + not overridden. In other words: even if the + terminal is larger than that, Click will not + format things wider than 80 characters by + default. In addition to that, formatters might + add some safety mapping on the right. + :param resilient_parsing: if this flag is enabled then Click will + parse without any interactivity or callback + invocation. Default values will also be + ignored. This is useful for implementing + things such as completion support. + :param allow_extra_args: if this is set to `True` then extra arguments + at the end will not raise an error and will be + kept on the context. The default is to inherit + from the command. + :param allow_interspersed_args: if this is set to `False` then options + and arguments cannot be mixed. The + default is to inherit from the command. + :param ignore_unknown_options: instructs click to ignore options it does + not know and keeps them for later + processing. + :param help_option_names: optionally a list of strings that define how + the default help parameter is named. The + default is ``['--help']``. + :param token_normalize_func: an optional function that is used to + normalize tokens (options, choices, + etc.). This for instance can be used to + implement case insensitive behavior. + :param color: controls if the terminal supports ANSI colors or not. The + default is autodetection. This is only needed if ANSI + codes are used in texts that Click prints which is by + default not the case. This for instance would affect + help output. + :param show_default: Show the default value for commands. If this + value is not set, it defaults to the value from the parent + context. ``Command.show_default`` overrides this default for the + specific command. + + .. versionchanged:: 8.2 + The ``protected_args`` attribute is deprecated and will be removed in + Click 9.0. ``args`` will contain remaining unparsed tokens. + + .. versionchanged:: 8.1 + The ``show_default`` parameter is overridden by + ``Command.show_default``, instead of the other way around. + + .. versionchanged:: 8.0 + The ``show_default`` parameter defaults to the value from the + parent context. + + .. versionchanged:: 7.1 + Added the ``show_default`` parameter. + + .. versionchanged:: 4.0 + Added the ``color``, ``ignore_unknown_options``, and + ``max_content_width`` parameters. + + .. versionchanged:: 3.0 + Added the ``allow_extra_args`` and ``allow_interspersed_args`` + parameters. + + .. versionchanged:: 2.0 + Added the ``resilient_parsing``, ``help_option_names``, and + ``token_normalize_func`` parameters. + """ + + #: The formatter class to create with :meth:`make_formatter`. + #: + #: .. versionadded:: 8.0 + formatter_class: type[HelpFormatter] = HelpFormatter + + def __init__( + self, + command: Command, + parent: Context | None = None, + info_name: str | None = None, + obj: t.Any | None = None, + auto_envvar_prefix: str | None = None, + default_map: cabc.MutableMapping[str, t.Any] | None = None, + terminal_width: int | None = None, + max_content_width: int | None = None, + resilient_parsing: bool = False, + allow_extra_args: bool | None = None, + allow_interspersed_args: bool | None = None, + ignore_unknown_options: bool | None = None, + help_option_names: list[str] | None = None, + token_normalize_func: t.Callable[[str], str] | None = None, + color: bool | None = None, + show_default: bool | None = None, + ) -> None: + #: the parent context or `None` if none exists. + self.parent = parent + #: the :class:`Command` for this context. + self.command = command + #: the descriptive information name + self.info_name = info_name + #: Map of parameter names to their parsed values. Parameters + #: with ``expose_value=False`` are not stored. + self.params: dict[str, t.Any] = {} + #: the leftover arguments. + self.args: list[str] = [] + #: protected arguments. These are arguments that are prepended + #: to `args` when certain parsing scenarios are encountered but + #: must be never propagated to another arguments. This is used + #: to implement nested parsing. + self._protected_args: list[str] = [] + #: the collected prefixes of the command's options. + self._opt_prefixes: set[str] = set(parent._opt_prefixes) if parent else set() + + if obj is None and parent is not None: + obj = parent.obj + + #: the user object stored. + self.obj: t.Any = obj + self._meta: dict[str, t.Any] = getattr(parent, "meta", {}) + + #: A dictionary (-like object) with defaults for parameters. + if ( + default_map is None + and info_name is not None + and parent is not None + and parent.default_map is not None + ): + default_map = parent.default_map.get(info_name) + + self.default_map: cabc.MutableMapping[str, t.Any] | None = default_map + + #: This flag indicates if a subcommand is going to be executed. A + #: group callback can use this information to figure out if it's + #: being executed directly or because the execution flow passes + #: onwards to a subcommand. By default it's None, but it can be + #: the name of the subcommand to execute. + #: + #: If chaining is enabled this will be set to ``'*'`` in case + #: any commands are executed. It is however not possible to + #: figure out which ones. If you require this knowledge you + #: should use a :func:`result_callback`. + self.invoked_subcommand: str | None = None + + if terminal_width is None and parent is not None: + terminal_width = parent.terminal_width + + #: The width of the terminal (None is autodetection). + self.terminal_width: int | None = terminal_width + + if max_content_width is None and parent is not None: + max_content_width = parent.max_content_width + + #: The maximum width of formatted content (None implies a sensible + #: default which is 80 for most things). + self.max_content_width: int | None = max_content_width + + if allow_extra_args is None: + allow_extra_args = command.allow_extra_args + + #: Indicates if the context allows extra args or if it should + #: fail on parsing. + #: + #: .. versionadded:: 3.0 + self.allow_extra_args = allow_extra_args + + if allow_interspersed_args is None: + allow_interspersed_args = command.allow_interspersed_args + + #: Indicates if the context allows mixing of arguments and + #: options or not. + #: + #: .. versionadded:: 3.0 + self.allow_interspersed_args: bool = allow_interspersed_args + + if ignore_unknown_options is None: + ignore_unknown_options = command.ignore_unknown_options + + #: Instructs click to ignore options that a command does not + #: understand and will store it on the context for later + #: processing. This is primarily useful for situations where you + #: want to call into external programs. Generally this pattern is + #: strongly discouraged because it's not possibly to losslessly + #: forward all arguments. + #: + #: .. versionadded:: 4.0 + self.ignore_unknown_options: bool = ignore_unknown_options + + if help_option_names is None: + if parent is not None: + help_option_names = parent.help_option_names + else: + help_option_names = ["--help"] + + #: The names for the help options. + self.help_option_names: list[str] = help_option_names + + if token_normalize_func is None and parent is not None: + token_normalize_func = parent.token_normalize_func + + #: An optional normalization function for tokens. This is + #: options, choices, commands etc. + self.token_normalize_func: t.Callable[[str], str] | None = token_normalize_func + + #: Indicates if resilient parsing is enabled. In that case Click + #: will do its best to not cause any failures and default values + #: will be ignored. Useful for completion. + self.resilient_parsing: bool = resilient_parsing + + # If there is no envvar prefix yet, but the parent has one and + # the command on this level has a name, we can expand the envvar + # prefix automatically. + if auto_envvar_prefix is None: + if ( + parent is not None + and parent.auto_envvar_prefix is not None + and self.info_name is not None + ): + auto_envvar_prefix = ( + f"{parent.auto_envvar_prefix}_{self.info_name.upper()}" + ) + else: + auto_envvar_prefix = auto_envvar_prefix.upper() + + if auto_envvar_prefix is not None: + auto_envvar_prefix = auto_envvar_prefix.replace("-", "_") + + self.auto_envvar_prefix: str | None = auto_envvar_prefix + + if color is None and parent is not None: + color = parent.color + + #: Controls if styling output is wanted or not. + self.color: bool | None = color + + if show_default is None and parent is not None: + show_default = parent.show_default + + #: Show option default values when formatting help text. + self.show_default: bool | None = show_default + + self._close_callbacks: list[t.Callable[[], t.Any]] = [] + self._depth = 0 + self._parameter_source: dict[str, ParameterSource] = {} + self._exit_stack = ExitStack() + + @property + def protected_args(self) -> list[str]: + import warnings + + warnings.warn( + "'protected_args' is deprecated and will be removed in Click 9.0." + " 'args' will contain remaining unparsed tokens.", + DeprecationWarning, + stacklevel=2, + ) + return self._protected_args + + def to_info_dict(self) -> dict[str, t.Any]: + """Gather information that could be useful for a tool generating + user-facing documentation. This traverses the entire CLI + structure. + + .. code-block:: python + + with Context(cli) as ctx: + info = ctx.to_info_dict() + + .. versionadded:: 8.0 + """ + return { + "command": self.command.to_info_dict(self), + "info_name": self.info_name, + "allow_extra_args": self.allow_extra_args, + "allow_interspersed_args": self.allow_interspersed_args, + "ignore_unknown_options": self.ignore_unknown_options, + "auto_envvar_prefix": self.auto_envvar_prefix, + } + + def __enter__(self) -> Context: + self._depth += 1 + push_context(self) + return self + + def __exit__( + self, + exc_type: type[BaseException] | None, + exc_value: BaseException | None, + tb: TracebackType | None, + ) -> None: + self._depth -= 1 + if self._depth == 0: + self.close() + pop_context() + + @contextmanager + def scope(self, cleanup: bool = True) -> cabc.Iterator[Context]: + """This helper method can be used with the context object to promote + it to the current thread local (see :func:`get_current_context`). + The default behavior of this is to invoke the cleanup functions which + can be disabled by setting `cleanup` to `False`. The cleanup + functions are typically used for things such as closing file handles. + + If the cleanup is intended the context object can also be directly + used as a context manager. + + Example usage:: + + with ctx.scope(): + assert get_current_context() is ctx + + This is equivalent:: + + with ctx: + assert get_current_context() is ctx + + .. versionadded:: 5.0 + + :param cleanup: controls if the cleanup functions should be run or + not. The default is to run these functions. In + some situations the context only wants to be + temporarily pushed in which case this can be disabled. + Nested pushes automatically defer the cleanup. + """ + if not cleanup: + self._depth += 1 + try: + with self as rv: + yield rv + finally: + if not cleanup: + self._depth -= 1 + + @property + def meta(self) -> dict[str, t.Any]: + """This is a dictionary which is shared with all the contexts + that are nested. It exists so that click utilities can store some + state here if they need to. It is however the responsibility of + that code to manage this dictionary well. + + The keys are supposed to be unique dotted strings. For instance + module paths are a good choice for it. What is stored in there is + irrelevant for the operation of click. However what is important is + that code that places data here adheres to the general semantics of + the system. + + Example usage:: + + LANG_KEY = f'{__name__}.lang' + + def set_language(value): + ctx = get_current_context() + ctx.meta[LANG_KEY] = value + + def get_language(): + return get_current_context().meta.get(LANG_KEY, 'en_US') + + .. versionadded:: 5.0 + """ + return self._meta + + def make_formatter(self) -> HelpFormatter: + """Creates the :class:`~click.HelpFormatter` for the help and + usage output. + + To quickly customize the formatter class used without overriding + this method, set the :attr:`formatter_class` attribute. + + .. versionchanged:: 8.0 + Added the :attr:`formatter_class` attribute. + """ + return self.formatter_class( + width=self.terminal_width, max_width=self.max_content_width + ) + + def with_resource(self, context_manager: AbstractContextManager[V]) -> V: + """Register a resource as if it were used in a ``with`` + statement. The resource will be cleaned up when the context is + popped. + + Uses :meth:`contextlib.ExitStack.enter_context`. It calls the + resource's ``__enter__()`` method and returns the result. When + the context is popped, it closes the stack, which calls the + resource's ``__exit__()`` method. + + To register a cleanup function for something that isn't a + context manager, use :meth:`call_on_close`. Or use something + from :mod:`contextlib` to turn it into a context manager first. + + .. code-block:: python + + @click.group() + @click.option("--name") + @click.pass_context + def cli(ctx): + ctx.obj = ctx.with_resource(connect_db(name)) + + :param context_manager: The context manager to enter. + :return: Whatever ``context_manager.__enter__()`` returns. + + .. versionadded:: 8.0 + """ + return self._exit_stack.enter_context(context_manager) + + def call_on_close(self, f: t.Callable[..., t.Any]) -> t.Callable[..., t.Any]: + """Register a function to be called when the context tears down. + + This can be used to close resources opened during the script + execution. Resources that support Python's context manager + protocol which would be used in a ``with`` statement should be + registered with :meth:`with_resource` instead. + + :param f: The function to execute on teardown. + """ + return self._exit_stack.callback(f) + + def close(self) -> None: + """Invoke all close callbacks registered with + :meth:`call_on_close`, and exit all context managers entered + with :meth:`with_resource`. + """ + self._exit_stack.close() + # In case the context is reused, create a new exit stack. + self._exit_stack = ExitStack() + + @property + def command_path(self) -> str: + """The computed command path. This is used for the ``usage`` + information on the help page. It's automatically created by + combining the info names of the chain of contexts to the root. + """ + rv = "" + if self.info_name is not None: + rv = self.info_name + if self.parent is not None: + parent_command_path = [self.parent.command_path] + + if isinstance(self.parent.command, Command): + for param in self.parent.command.get_params(self): + parent_command_path.extend(param.get_usage_pieces(self)) + + rv = f"{' '.join(parent_command_path)} {rv}" + return rv.lstrip() + + def find_root(self) -> Context: + """Finds the outermost context.""" + node = self + while node.parent is not None: + node = node.parent + return node + + def find_object(self, object_type: type[V]) -> V | None: + """Finds the closest object of a given type.""" + node: Context | None = self + + while node is not None: + if isinstance(node.obj, object_type): + return node.obj + + node = node.parent + + return None + + def ensure_object(self, object_type: type[V]) -> V: + """Like :meth:`find_object` but sets the innermost object to a + new instance of `object_type` if it does not exist. + """ + rv = self.find_object(object_type) + if rv is None: + self.obj = rv = object_type() + return rv + + @t.overload + def lookup_default( + self, name: str, call: t.Literal[True] = True + ) -> t.Any | None: ... + + @t.overload + def lookup_default( + self, name: str, call: t.Literal[False] = ... + ) -> t.Any | t.Callable[[], t.Any] | None: ... + + def lookup_default(self, name: str, call: bool = True) -> t.Any | None: + """Get the default for a parameter from :attr:`default_map`. + + :param name: Name of the parameter. + :param call: If the default is a callable, call it. Disable to + return the callable instead. + + .. versionchanged:: 8.0 + Added the ``call`` parameter. + """ + if self.default_map is not None: + value = self.default_map.get(name) + + if call and callable(value): + return value() + + return value + + return None + + def fail(self, message: str) -> t.NoReturn: + """Aborts the execution of the program with a specific error + message. + + :param message: the error message to fail with. + """ + raise UsageError(message, self) + + def abort(self) -> t.NoReturn: + """Aborts the script.""" + raise Abort() + + def exit(self, code: int = 0) -> t.NoReturn: + """Exits the application with a given exit code. + + .. versionchanged:: 8.2 + Callbacks and context managers registered with :meth:`call_on_close` + and :meth:`with_resource` are closed before exiting. + """ + self.close() + raise Exit(code) + + def get_usage(self) -> str: + """Helper method to get formatted usage string for the current + context and command. + """ + return self.command.get_usage(self) + + def get_help(self) -> str: + """Helper method to get formatted help page for the current + context and command. + """ + return self.command.get_help(self) + + def _make_sub_context(self, command: Command) -> Context: + """Create a new context of the same type as this context, but + for a new command. + + :meta private: + """ + return type(self)(command, info_name=command.name, parent=self) + + @t.overload + def invoke( + self, callback: t.Callable[..., V], /, *args: t.Any, **kwargs: t.Any + ) -> V: ... + + @t.overload + def invoke(self, callback: Command, /, *args: t.Any, **kwargs: t.Any) -> t.Any: ... + + def invoke( + self, callback: Command | t.Callable[..., V], /, *args: t.Any, **kwargs: t.Any + ) -> t.Any | V: + """Invokes a command callback in exactly the way it expects. There + are two ways to invoke this method: + + 1. the first argument can be a callback and all other arguments and + keyword arguments are forwarded directly to the function. + 2. the first argument is a click command object. In that case all + arguments are forwarded as well but proper click parameters + (options and click arguments) must be keyword arguments and Click + will fill in defaults. + + .. versionchanged:: 8.0 + All ``kwargs`` are tracked in :attr:`params` so they will be + passed if :meth:`forward` is called at multiple levels. + + .. versionchanged:: 3.2 + A new context is created, and missing arguments use default values. + """ + if isinstance(callback, Command): + other_cmd = callback + + if other_cmd.callback is None: + raise TypeError( + "The given command does not have a callback that can be invoked." + ) + else: + callback = t.cast("t.Callable[..., V]", other_cmd.callback) + + ctx = self._make_sub_context(other_cmd) + + for param in other_cmd.params: + if param.name not in kwargs and param.expose_value: + kwargs[param.name] = param.type_cast_value( # type: ignore + ctx, param.get_default(ctx) + ) + + # Track all kwargs as params, so that forward() will pass + # them on in subsequent calls. + ctx.params.update(kwargs) + else: + ctx = self + + with augment_usage_errors(self): + with ctx: + return callback(*args, **kwargs) + + def forward(self, cmd: Command, /, *args: t.Any, **kwargs: t.Any) -> t.Any: + """Similar to :meth:`invoke` but fills in default keyword + arguments from the current context if the other command expects + it. This cannot invoke callbacks directly, only other commands. + + .. versionchanged:: 8.0 + All ``kwargs`` are tracked in :attr:`params` so they will be + passed if ``forward`` is called at multiple levels. + """ + # Can only forward to other commands, not direct callbacks. + if not isinstance(cmd, Command): + raise TypeError("Callback is not a command.") + + for param in self.params: + if param not in kwargs: + kwargs[param] = self.params[param] + + return self.invoke(cmd, *args, **kwargs) + + def set_parameter_source(self, name: str, source: ParameterSource) -> None: + """Set the source of a parameter. This indicates the location + from which the value of the parameter was obtained. + + :param name: The name of the parameter. + :param source: A member of :class:`~click.core.ParameterSource`. + """ + self._parameter_source[name] = source + + def get_parameter_source(self, name: str) -> ParameterSource | None: + """Get the source of a parameter. This indicates the location + from which the value of the parameter was obtained. + + This can be useful for determining when a user specified a value + on the command line that is the same as the default value. It + will be :attr:`~click.core.ParameterSource.DEFAULT` only if the + value was actually taken from the default. + + :param name: The name of the parameter. + :rtype: ParameterSource + + .. versionchanged:: 8.0 + Returns ``None`` if the parameter was not provided from any + source. + """ + return self._parameter_source.get(name) + + +class Command: + """Commands are the basic building block of command line interfaces in + Click. A basic command handles command line parsing and might dispatch + more parsing to commands nested below it. + + :param name: the name of the command to use unless a group overrides it. + :param context_settings: an optional dictionary with defaults that are + passed to the context object. + :param callback: the callback to invoke. This is optional. + :param params: the parameters to register with this command. This can + be either :class:`Option` or :class:`Argument` objects. + :param help: the help string to use for this command. + :param epilog: like the help string but it's printed at the end of the + help page after everything else. + :param short_help: the short help to use for this command. This is + shown on the command listing of the parent command. + :param add_help_option: by default each command registers a ``--help`` + option. This can be disabled by this parameter. + :param no_args_is_help: this controls what happens if no arguments are + provided. This option is disabled by default. + If enabled this will add ``--help`` as argument + if no arguments are passed + :param hidden: hide this command from help outputs. + :param deprecated: If ``True`` or non-empty string, issues a message + indicating that the command is deprecated and highlights + its deprecation in --help. The message can be customized + by using a string as the value. + + .. versionchanged:: 8.2 + This is the base class for all commands, not ``BaseCommand``. + ``deprecated`` can be set to a string as well to customize the + deprecation message. + + .. versionchanged:: 8.1 + ``help``, ``epilog``, and ``short_help`` are stored unprocessed, + all formatting is done when outputting help text, not at init, + and is done even if not using the ``@command`` decorator. + + .. versionchanged:: 8.0 + Added a ``repr`` showing the command name. + + .. versionchanged:: 7.1 + Added the ``no_args_is_help`` parameter. + + .. versionchanged:: 2.0 + Added the ``context_settings`` parameter. + """ + + #: The context class to create with :meth:`make_context`. + #: + #: .. versionadded:: 8.0 + context_class: type[Context] = Context + + #: the default for the :attr:`Context.allow_extra_args` flag. + allow_extra_args = False + + #: the default for the :attr:`Context.allow_interspersed_args` flag. + allow_interspersed_args = True + + #: the default for the :attr:`Context.ignore_unknown_options` flag. + ignore_unknown_options = False + + def __init__( + self, + name: str | None, + context_settings: cabc.MutableMapping[str, t.Any] | None = None, + callback: t.Callable[..., t.Any] | None = None, + params: list[Parameter] | None = None, + help: str | None = None, + epilog: str | None = None, + short_help: str | None = None, + options_metavar: str | None = "[OPTIONS]", + add_help_option: bool = True, + no_args_is_help: bool = False, + hidden: bool = False, + deprecated: bool | str = False, + ) -> None: + #: the name the command thinks it has. Upon registering a command + #: on a :class:`Group` the group will default the command name + #: with this information. You should instead use the + #: :class:`Context`\'s :attr:`~Context.info_name` attribute. + self.name = name + + if context_settings is None: + context_settings = {} + + #: an optional dictionary with defaults passed to the context. + self.context_settings: cabc.MutableMapping[str, t.Any] = context_settings + + #: the callback to execute when the command fires. This might be + #: `None` in which case nothing happens. + self.callback = callback + #: the list of parameters for this command in the order they + #: should show up in the help page and execute. Eager parameters + #: will automatically be handled before non eager ones. + self.params: list[Parameter] = params or [] + self.help = help + self.epilog = epilog + self.options_metavar = options_metavar + self.short_help = short_help + self.add_help_option = add_help_option + self._help_option = None + self.no_args_is_help = no_args_is_help + self.hidden = hidden + self.deprecated = deprecated + + def to_info_dict(self, ctx: Context) -> dict[str, t.Any]: + return { + "name": self.name, + "params": [param.to_info_dict() for param in self.get_params(ctx)], + "help": self.help, + "epilog": self.epilog, + "short_help": self.short_help, + "hidden": self.hidden, + "deprecated": self.deprecated, + } + + def __repr__(self) -> str: + return f"<{self.__class__.__name__} {self.name}>" + + def get_usage(self, ctx: Context) -> str: + """Formats the usage line into a string and returns it. + + Calls :meth:`format_usage` internally. + """ + formatter = ctx.make_formatter() + self.format_usage(ctx, formatter) + return formatter.getvalue().rstrip("\n") + + def get_params(self, ctx: Context) -> list[Parameter]: + params = self.params + help_option = self.get_help_option(ctx) + + if help_option is not None: + params = [*params, help_option] + + if __debug__: + import warnings + + opts = [opt for param in params for opt in param.opts] + opts_counter = Counter(opts) + duplicate_opts = (opt for opt, count in opts_counter.items() if count > 1) + + for duplicate_opt in duplicate_opts: + warnings.warn( + ( + f"The parameter {duplicate_opt} is used more than once. " + "Remove its duplicate as parameters should be unique." + ), + stacklevel=3, + ) + + return params + + def format_usage(self, ctx: Context, formatter: HelpFormatter) -> None: + """Writes the usage line into the formatter. + + This is a low-level method called by :meth:`get_usage`. + """ + pieces = self.collect_usage_pieces(ctx) + formatter.write_usage(ctx.command_path, " ".join(pieces)) + + def collect_usage_pieces(self, ctx: Context) -> list[str]: + """Returns all the pieces that go into the usage line and returns + it as a list of strings. + """ + rv = [self.options_metavar] if self.options_metavar else [] + + for param in self.get_params(ctx): + rv.extend(param.get_usage_pieces(ctx)) + + return rv + + def get_help_option_names(self, ctx: Context) -> list[str]: + """Returns the names for the help option.""" + all_names = set(ctx.help_option_names) + for param in self.params: + all_names.difference_update(param.opts) + all_names.difference_update(param.secondary_opts) + return list(all_names) + + def get_help_option(self, ctx: Context) -> Option | None: + """Returns the help option object. + + Skipped if :attr:`add_help_option` is ``False``. + + .. versionchanged:: 8.1.8 + The help option is now cached to avoid creating it multiple times. + """ + help_option_names = self.get_help_option_names(ctx) + + if not help_option_names or not self.add_help_option: + return None + + # Cache the help option object in private _help_option attribute to + # avoid creating it multiple times. Not doing this will break the + # callback odering by iter_params_for_processing(), which relies on + # object comparison. + if self._help_option is None: + # Avoid circular import. + from .decorators import help_option + + # Apply help_option decorator and pop resulting option + help_option(*help_option_names)(self) + self._help_option = self.params.pop() # type: ignore[assignment] + + return self._help_option + + def make_parser(self, ctx: Context) -> _OptionParser: + """Creates the underlying option parser for this command.""" + parser = _OptionParser(ctx) + for param in self.get_params(ctx): + param.add_to_parser(parser, ctx) + return parser + + def get_help(self, ctx: Context) -> str: + """Formats the help into a string and returns it. + + Calls :meth:`format_help` internally. + """ + formatter = ctx.make_formatter() + self.format_help(ctx, formatter) + return formatter.getvalue().rstrip("\n") + + def get_short_help_str(self, limit: int = 45) -> str: + """Gets short help for the command or makes it by shortening the + long help string. + """ + if self.short_help: + text = inspect.cleandoc(self.short_help) + elif self.help: + text = make_default_short_help(self.help, limit) + else: + text = "" + + if self.deprecated: + deprecated_message = ( + f"(DEPRECATED: {self.deprecated})" + if isinstance(self.deprecated, str) + else "(DEPRECATED)" + ) + text = _("{text} {deprecated_message}").format( + text=text, deprecated_message=deprecated_message + ) + + return text.strip() + + def format_help(self, ctx: Context, formatter: HelpFormatter) -> None: + """Writes the help into the formatter if it exists. + + This is a low-level method called by :meth:`get_help`. + + This calls the following methods: + + - :meth:`format_usage` + - :meth:`format_help_text` + - :meth:`format_options` + - :meth:`format_epilog` + """ + self.format_usage(ctx, formatter) + self.format_help_text(ctx, formatter) + self.format_options(ctx, formatter) + self.format_epilog(ctx, formatter) + + def format_help_text(self, ctx: Context, formatter: HelpFormatter) -> None: + """Writes the help text to the formatter if it exists.""" + if self.help is not None: + # truncate the help text to the first form feed + text = inspect.cleandoc(self.help).partition("\f")[0] + else: + text = "" + + if self.deprecated: + deprecated_message = ( + f"(DEPRECATED: {self.deprecated})" + if isinstance(self.deprecated, str) + else "(DEPRECATED)" + ) + text = _("{text} {deprecated_message}").format( + text=text, deprecated_message=deprecated_message + ) + + if text: + formatter.write_paragraph() + + with formatter.indentation(): + formatter.write_text(text) + + def format_options(self, ctx: Context, formatter: HelpFormatter) -> None: + """Writes all the options into the formatter if they exist.""" + opts = [] + for param in self.get_params(ctx): + rv = param.get_help_record(ctx) + if rv is not None: + opts.append(rv) + + if opts: + with formatter.section(_("Options")): + formatter.write_dl(opts) + + def format_epilog(self, ctx: Context, formatter: HelpFormatter) -> None: + """Writes the epilog into the formatter if it exists.""" + if self.epilog: + epilog = inspect.cleandoc(self.epilog) + formatter.write_paragraph() + + with formatter.indentation(): + formatter.write_text(epilog) + + def make_context( + self, + info_name: str | None, + args: list[str], + parent: Context | None = None, + **extra: t.Any, + ) -> Context: + """This function when given an info name and arguments will kick + off the parsing and create a new :class:`Context`. It does not + invoke the actual command callback though. + + To quickly customize the context class used without overriding + this method, set the :attr:`context_class` attribute. + + :param info_name: the info name for this invocation. Generally this + is the most descriptive name for the script or + command. For the toplevel script it's usually + the name of the script, for commands below it's + the name of the command. + :param args: the arguments to parse as list of strings. + :param parent: the parent context if available. + :param extra: extra keyword arguments forwarded to the context + constructor. + + .. versionchanged:: 8.0 + Added the :attr:`context_class` attribute. + """ + for key, value in self.context_settings.items(): + if key not in extra: + extra[key] = value + + ctx = self.context_class(self, info_name=info_name, parent=parent, **extra) + + with ctx.scope(cleanup=False): + self.parse_args(ctx, args) + return ctx + + def parse_args(self, ctx: Context, args: list[str]) -> list[str]: + if not args and self.no_args_is_help and not ctx.resilient_parsing: + raise NoArgsIsHelpError(ctx) + + parser = self.make_parser(ctx) + opts, args, param_order = parser.parse_args(args=args) + + for param in iter_params_for_processing(param_order, self.get_params(ctx)): + value, args = param.handle_parse_result(ctx, opts, args) + + if args and not ctx.allow_extra_args and not ctx.resilient_parsing: + ctx.fail( + ngettext( + "Got unexpected extra argument ({args})", + "Got unexpected extra arguments ({args})", + len(args), + ).format(args=" ".join(map(str, args))) + ) + + ctx.args = args + ctx._opt_prefixes.update(parser._opt_prefixes) + return args + + def invoke(self, ctx: Context) -> t.Any: + """Given a context, this invokes the attached callback (if it exists) + in the right way. + """ + if self.deprecated: + extra_message = ( + f" {self.deprecated}" if isinstance(self.deprecated, str) else "" + ) + message = _( + "DeprecationWarning: The command {name!r} is deprecated.{extra_message}" + ).format(name=self.name, extra_message=extra_message) + echo(style(message, fg="red"), err=True) + + if self.callback is not None: + return ctx.invoke(self.callback, **ctx.params) + + def shell_complete(self, ctx: Context, incomplete: str) -> list[CompletionItem]: + """Return a list of completions for the incomplete value. Looks + at the names of options and chained multi-commands. + + Any command could be part of a chained multi-command, so sibling + commands are valid at any point during command completion. + + :param ctx: Invocation context for this command. + :param incomplete: Value being completed. May be empty. + + .. versionadded:: 8.0 + """ + from click.shell_completion import CompletionItem + + results: list[CompletionItem] = [] + + if incomplete and not incomplete[0].isalnum(): + for param in self.get_params(ctx): + if ( + not isinstance(param, Option) + or param.hidden + or ( + not param.multiple + and ctx.get_parameter_source(param.name) # type: ignore + is ParameterSource.COMMANDLINE + ) + ): + continue + + results.extend( + CompletionItem(name, help=param.help) + for name in [*param.opts, *param.secondary_opts] + if name.startswith(incomplete) + ) + + while ctx.parent is not None: + ctx = ctx.parent + + if isinstance(ctx.command, Group) and ctx.command.chain: + results.extend( + CompletionItem(name, help=command.get_short_help_str()) + for name, command in _complete_visible_commands(ctx, incomplete) + if name not in ctx._protected_args + ) + + return results + + @t.overload + def main( + self, + args: cabc.Sequence[str] | None = None, + prog_name: str | None = None, + complete_var: str | None = None, + standalone_mode: t.Literal[True] = True, + **extra: t.Any, + ) -> t.NoReturn: ... + + @t.overload + def main( + self, + args: cabc.Sequence[str] | None = None, + prog_name: str | None = None, + complete_var: str | None = None, + standalone_mode: bool = ..., + **extra: t.Any, + ) -> t.Any: ... + + def main( + self, + args: cabc.Sequence[str] | None = None, + prog_name: str | None = None, + complete_var: str | None = None, + standalone_mode: bool = True, + windows_expand_args: bool = True, + **extra: t.Any, + ) -> t.Any: + """This is the way to invoke a script with all the bells and + whistles as a command line application. This will always terminate + the application after a call. If this is not wanted, ``SystemExit`` + needs to be caught. + + This method is also available by directly calling the instance of + a :class:`Command`. + + :param args: the arguments that should be used for parsing. If not + provided, ``sys.argv[1:]`` is used. + :param prog_name: the program name that should be used. By default + the program name is constructed by taking the file + name from ``sys.argv[0]``. + :param complete_var: the environment variable that controls the + bash completion support. The default is + ``"__COMPLETE"`` with prog_name in + uppercase. + :param standalone_mode: the default behavior is to invoke the script + in standalone mode. Click will then + handle exceptions and convert them into + error messages and the function will never + return but shut down the interpreter. If + this is set to `False` they will be + propagated to the caller and the return + value of this function is the return value + of :meth:`invoke`. + :param windows_expand_args: Expand glob patterns, user dir, and + env vars in command line args on Windows. + :param extra: extra keyword arguments are forwarded to the context + constructor. See :class:`Context` for more information. + + .. versionchanged:: 8.0.1 + Added the ``windows_expand_args`` parameter to allow + disabling command line arg expansion on Windows. + + .. versionchanged:: 8.0 + When taking arguments from ``sys.argv`` on Windows, glob + patterns, user dir, and env vars are expanded. + + .. versionchanged:: 3.0 + Added the ``standalone_mode`` parameter. + """ + if args is None: + args = sys.argv[1:] + + if os.name == "nt" and windows_expand_args: + args = _expand_args(args) + else: + args = list(args) + + if prog_name is None: + prog_name = _detect_program_name() + + # Process shell completion requests and exit early. + self._main_shell_completion(extra, prog_name, complete_var) + + try: + try: + with self.make_context(prog_name, args, **extra) as ctx: + rv = self.invoke(ctx) + if not standalone_mode: + return rv + # it's not safe to `ctx.exit(rv)` here! + # note that `rv` may actually contain data like "1" which + # has obvious effects + # more subtle case: `rv=[None, None]` can come out of + # chained commands which all returned `None` -- so it's not + # even always obvious that `rv` indicates success/failure + # by its truthiness/falsiness + ctx.exit() + except (EOFError, KeyboardInterrupt) as e: + echo(file=sys.stderr) + raise Abort() from e + except ClickException as e: + if not standalone_mode: + raise + e.show() + sys.exit(e.exit_code) + except OSError as e: + if e.errno == errno.EPIPE: + sys.stdout = t.cast(t.TextIO, PacifyFlushWrapper(sys.stdout)) + sys.stderr = t.cast(t.TextIO, PacifyFlushWrapper(sys.stderr)) + sys.exit(1) + else: + raise + except Exit as e: + if standalone_mode: + sys.exit(e.exit_code) + else: + # in non-standalone mode, return the exit code + # note that this is only reached if `self.invoke` above raises + # an Exit explicitly -- thus bypassing the check there which + # would return its result + # the results of non-standalone execution may therefore be + # somewhat ambiguous: if there are codepaths which lead to + # `ctx.exit(1)` and to `return 1`, the caller won't be able to + # tell the difference between the two + return e.exit_code + except Abort: + if not standalone_mode: + raise + echo(_("Aborted!"), file=sys.stderr) + sys.exit(1) + + def _main_shell_completion( + self, + ctx_args: cabc.MutableMapping[str, t.Any], + prog_name: str, + complete_var: str | None = None, + ) -> None: + """Check if the shell is asking for tab completion, process + that, then exit early. Called from :meth:`main` before the + program is invoked. + + :param prog_name: Name of the executable in the shell. + :param complete_var: Name of the environment variable that holds + the completion instruction. Defaults to + ``_{PROG_NAME}_COMPLETE``. + + .. versionchanged:: 8.2.0 + Dots (``.``) in ``prog_name`` are replaced with underscores (``_``). + """ + if complete_var is None: + complete_name = prog_name.replace("-", "_").replace(".", "_") + complete_var = f"_{complete_name}_COMPLETE".upper() + + instruction = os.environ.get(complete_var) + + if not instruction: + return + + from .shell_completion import shell_complete + + rv = shell_complete(self, ctx_args, prog_name, complete_var, instruction) + sys.exit(rv) + + def __call__(self, *args: t.Any, **kwargs: t.Any) -> t.Any: + """Alias for :meth:`main`.""" + return self.main(*args, **kwargs) + + +class _FakeSubclassCheck(type): + def __subclasscheck__(cls, subclass: type) -> bool: + return issubclass(subclass, cls.__bases__[0]) + + def __instancecheck__(cls, instance: t.Any) -> bool: + return isinstance(instance, cls.__bases__[0]) + + +class _BaseCommand(Command, metaclass=_FakeSubclassCheck): + """ + .. deprecated:: 8.2 + Will be removed in Click 9.0. Use ``Command`` instead. + """ + + +class Group(Command): + """A group is a command that nests other commands (or more groups). + + :param name: The name of the group command. + :param commands: Map names to :class:`Command` objects. Can be a list, which + will use :attr:`Command.name` as the keys. + :param invoke_without_command: Invoke the group's callback even if a + subcommand is not given. + :param no_args_is_help: If no arguments are given, show the group's help and + exit. Defaults to the opposite of ``invoke_without_command``. + :param subcommand_metavar: How to represent the subcommand argument in help. + The default will represent whether ``chain`` is set or not. + :param chain: Allow passing more than one subcommand argument. After parsing + a command's arguments, if any arguments remain another command will be + matched, and so on. + :param result_callback: A function to call after the group's and + subcommand's callbacks. The value returned by the subcommand is passed. + If ``chain`` is enabled, the value will be a list of values returned by + all the commands. If ``invoke_without_command`` is enabled, the value + will be the value returned by the group's callback, or an empty list if + ``chain`` is enabled. + :param kwargs: Other arguments passed to :class:`Command`. + + .. versionchanged:: 8.0 + The ``commands`` argument can be a list of command objects. + + .. versionchanged:: 8.2 + Merged with and replaces the ``MultiCommand`` base class. + """ + + allow_extra_args = True + allow_interspersed_args = False + + #: If set, this is used by the group's :meth:`command` decorator + #: as the default :class:`Command` class. This is useful to make all + #: subcommands use a custom command class. + #: + #: .. versionadded:: 8.0 + command_class: type[Command] | None = None + + #: If set, this is used by the group's :meth:`group` decorator + #: as the default :class:`Group` class. This is useful to make all + #: subgroups use a custom group class. + #: + #: If set to the special value :class:`type` (literally + #: ``group_class = type``), this group's class will be used as the + #: default class. This makes a custom group class continue to make + #: custom groups. + #: + #: .. versionadded:: 8.0 + group_class: type[Group] | type[type] | None = None + # Literal[type] isn't valid, so use Type[type] + + def __init__( + self, + name: str | None = None, + commands: cabc.MutableMapping[str, Command] + | cabc.Sequence[Command] + | None = None, + invoke_without_command: bool = False, + no_args_is_help: bool | None = None, + subcommand_metavar: str | None = None, + chain: bool = False, + result_callback: t.Callable[..., t.Any] | None = None, + **kwargs: t.Any, + ) -> None: + super().__init__(name, **kwargs) + + if commands is None: + commands = {} + elif isinstance(commands, abc.Sequence): + commands = {c.name: c for c in commands if c.name is not None} + + #: The registered subcommands by their exported names. + self.commands: cabc.MutableMapping[str, Command] = commands + + if no_args_is_help is None: + no_args_is_help = not invoke_without_command + + self.no_args_is_help = no_args_is_help + self.invoke_without_command = invoke_without_command + + if subcommand_metavar is None: + if chain: + subcommand_metavar = "COMMAND1 [ARGS]... [COMMAND2 [ARGS]...]..." + else: + subcommand_metavar = "COMMAND [ARGS]..." + + self.subcommand_metavar = subcommand_metavar + self.chain = chain + # The result callback that is stored. This can be set or + # overridden with the :func:`result_callback` decorator. + self._result_callback = result_callback + + if self.chain: + for param in self.params: + if isinstance(param, Argument) and not param.required: + raise RuntimeError( + "A group in chain mode cannot have optional arguments." + ) + + def to_info_dict(self, ctx: Context) -> dict[str, t.Any]: + info_dict = super().to_info_dict(ctx) + commands = {} + + for name in self.list_commands(ctx): + command = self.get_command(ctx, name) + + if command is None: + continue + + sub_ctx = ctx._make_sub_context(command) + + with sub_ctx.scope(cleanup=False): + commands[name] = command.to_info_dict(sub_ctx) + + info_dict.update(commands=commands, chain=self.chain) + return info_dict + + def add_command(self, cmd: Command, name: str | None = None) -> None: + """Registers another :class:`Command` with this group. If the name + is not provided, the name of the command is used. + """ + name = name or cmd.name + if name is None: + raise TypeError("Command has no name.") + _check_nested_chain(self, name, cmd, register=True) + self.commands[name] = cmd + + @t.overload + def command(self, __func: t.Callable[..., t.Any]) -> Command: ... + + @t.overload + def command( + self, *args: t.Any, **kwargs: t.Any + ) -> t.Callable[[t.Callable[..., t.Any]], Command]: ... + + def command( + self, *args: t.Any, **kwargs: t.Any + ) -> t.Callable[[t.Callable[..., t.Any]], Command] | Command: + """A shortcut decorator for declaring and attaching a command to + the group. This takes the same arguments as :func:`command` and + immediately registers the created command with this group by + calling :meth:`add_command`. + + To customize the command class used, set the + :attr:`command_class` attribute. + + .. versionchanged:: 8.1 + This decorator can be applied without parentheses. + + .. versionchanged:: 8.0 + Added the :attr:`command_class` attribute. + """ + from .decorators import command + + func: t.Callable[..., t.Any] | None = None + + if args and callable(args[0]): + assert len(args) == 1 and not kwargs, ( + "Use 'command(**kwargs)(callable)' to provide arguments." + ) + (func,) = args + args = () + + if self.command_class and kwargs.get("cls") is None: + kwargs["cls"] = self.command_class + + def decorator(f: t.Callable[..., t.Any]) -> Command: + cmd: Command = command(*args, **kwargs)(f) + self.add_command(cmd) + return cmd + + if func is not None: + return decorator(func) + + return decorator + + @t.overload + def group(self, __func: t.Callable[..., t.Any]) -> Group: ... + + @t.overload + def group( + self, *args: t.Any, **kwargs: t.Any + ) -> t.Callable[[t.Callable[..., t.Any]], Group]: ... + + def group( + self, *args: t.Any, **kwargs: t.Any + ) -> t.Callable[[t.Callable[..., t.Any]], Group] | Group: + """A shortcut decorator for declaring and attaching a group to + the group. This takes the same arguments as :func:`group` and + immediately registers the created group with this group by + calling :meth:`add_command`. + + To customize the group class used, set the :attr:`group_class` + attribute. + + .. versionchanged:: 8.1 + This decorator can be applied without parentheses. + + .. versionchanged:: 8.0 + Added the :attr:`group_class` attribute. + """ + from .decorators import group + + func: t.Callable[..., t.Any] | None = None + + if args and callable(args[0]): + assert len(args) == 1 and not kwargs, ( + "Use 'group(**kwargs)(callable)' to provide arguments." + ) + (func,) = args + args = () + + if self.group_class is not None and kwargs.get("cls") is None: + if self.group_class is type: + kwargs["cls"] = type(self) + else: + kwargs["cls"] = self.group_class + + def decorator(f: t.Callable[..., t.Any]) -> Group: + cmd: Group = group(*args, **kwargs)(f) + self.add_command(cmd) + return cmd + + if func is not None: + return decorator(func) + + return decorator + + def result_callback(self, replace: bool = False) -> t.Callable[[F], F]: + """Adds a result callback to the command. By default if a + result callback is already registered this will chain them but + this can be disabled with the `replace` parameter. The result + callback is invoked with the return value of the subcommand + (or the list of return values from all subcommands if chaining + is enabled) as well as the parameters as they would be passed + to the main callback. + + Example:: + + @click.group() + @click.option('-i', '--input', default=23) + def cli(input): + return 42 + + @cli.result_callback() + def process_result(result, input): + return result + input + + :param replace: if set to `True` an already existing result + callback will be removed. + + .. versionchanged:: 8.0 + Renamed from ``resultcallback``. + + .. versionadded:: 3.0 + """ + + def decorator(f: F) -> F: + old_callback = self._result_callback + + if old_callback is None or replace: + self._result_callback = f + return f + + def function(value: t.Any, /, *args: t.Any, **kwargs: t.Any) -> t.Any: + inner = old_callback(value, *args, **kwargs) + return f(inner, *args, **kwargs) + + self._result_callback = rv = update_wrapper(t.cast(F, function), f) + return rv # type: ignore[return-value] + + return decorator + + def get_command(self, ctx: Context, cmd_name: str) -> Command | None: + """Given a context and a command name, this returns a :class:`Command` + object if it exists or returns ``None``. + """ + return self.commands.get(cmd_name) + + def list_commands(self, ctx: Context) -> list[str]: + """Returns a list of subcommand names in the order they should appear.""" + return sorted(self.commands) + + def collect_usage_pieces(self, ctx: Context) -> list[str]: + rv = super().collect_usage_pieces(ctx) + rv.append(self.subcommand_metavar) + return rv + + def format_options(self, ctx: Context, formatter: HelpFormatter) -> None: + super().format_options(ctx, formatter) + self.format_commands(ctx, formatter) + + def format_commands(self, ctx: Context, formatter: HelpFormatter) -> None: + """Extra format methods for multi methods that adds all the commands + after the options. + """ + commands = [] + for subcommand in self.list_commands(ctx): + cmd = self.get_command(ctx, subcommand) + # What is this, the tool lied about a command. Ignore it + if cmd is None: + continue + if cmd.hidden: + continue + + commands.append((subcommand, cmd)) + + # allow for 3 times the default spacing + if len(commands): + limit = formatter.width - 6 - max(len(cmd[0]) for cmd in commands) + + rows = [] + for subcommand, cmd in commands: + help = cmd.get_short_help_str(limit) + rows.append((subcommand, help)) + + if rows: + with formatter.section(_("Commands")): + formatter.write_dl(rows) + + def parse_args(self, ctx: Context, args: list[str]) -> list[str]: + if not args and self.no_args_is_help and not ctx.resilient_parsing: + raise NoArgsIsHelpError(ctx) + + rest = super().parse_args(ctx, args) + + if self.chain: + ctx._protected_args = rest + ctx.args = [] + elif rest: + ctx._protected_args, ctx.args = rest[:1], rest[1:] + + return ctx.args + + def invoke(self, ctx: Context) -> t.Any: + def _process_result(value: t.Any) -> t.Any: + if self._result_callback is not None: + value = ctx.invoke(self._result_callback, value, **ctx.params) + return value + + if not ctx._protected_args: + if self.invoke_without_command: + # No subcommand was invoked, so the result callback is + # invoked with the group return value for regular + # groups, or an empty list for chained groups. + with ctx: + rv = super().invoke(ctx) + return _process_result([] if self.chain else rv) + ctx.fail(_("Missing command.")) + + # Fetch args back out + args = [*ctx._protected_args, *ctx.args] + ctx.args = [] + ctx._protected_args = [] + + # If we're not in chain mode, we only allow the invocation of a + # single command but we also inform the current context about the + # name of the command to invoke. + if not self.chain: + # Make sure the context is entered so we do not clean up + # resources until the result processor has worked. + with ctx: + cmd_name, cmd, args = self.resolve_command(ctx, args) + assert cmd is not None + ctx.invoked_subcommand = cmd_name + super().invoke(ctx) + sub_ctx = cmd.make_context(cmd_name, args, parent=ctx) + with sub_ctx: + return _process_result(sub_ctx.command.invoke(sub_ctx)) + + # In chain mode we create the contexts step by step, but after the + # base command has been invoked. Because at that point we do not + # know the subcommands yet, the invoked subcommand attribute is + # set to ``*`` to inform the command that subcommands are executed + # but nothing else. + with ctx: + ctx.invoked_subcommand = "*" if args else None + super().invoke(ctx) + + # Otherwise we make every single context and invoke them in a + # chain. In that case the return value to the result processor + # is the list of all invoked subcommand's results. + contexts = [] + while args: + cmd_name, cmd, args = self.resolve_command(ctx, args) + assert cmd is not None + sub_ctx = cmd.make_context( + cmd_name, + args, + parent=ctx, + allow_extra_args=True, + allow_interspersed_args=False, + ) + contexts.append(sub_ctx) + args, sub_ctx.args = sub_ctx.args, [] + + rv = [] + for sub_ctx in contexts: + with sub_ctx: + rv.append(sub_ctx.command.invoke(sub_ctx)) + return _process_result(rv) + + def resolve_command( + self, ctx: Context, args: list[str] + ) -> tuple[str | None, Command | None, list[str]]: + cmd_name = make_str(args[0]) + original_cmd_name = cmd_name + + # Get the command + cmd = self.get_command(ctx, cmd_name) + + # If we can't find the command but there is a normalization + # function available, we try with that one. + if cmd is None and ctx.token_normalize_func is not None: + cmd_name = ctx.token_normalize_func(cmd_name) + cmd = self.get_command(ctx, cmd_name) + + # If we don't find the command we want to show an error message + # to the user that it was not provided. However, there is + # something else we should do: if the first argument looks like + # an option we want to kick off parsing again for arguments to + # resolve things like --help which now should go to the main + # place. + if cmd is None and not ctx.resilient_parsing: + if _split_opt(cmd_name)[0]: + self.parse_args(ctx, args) + ctx.fail(_("No such command {name!r}.").format(name=original_cmd_name)) + return cmd_name if cmd else None, cmd, args[1:] + + def shell_complete(self, ctx: Context, incomplete: str) -> list[CompletionItem]: + """Return a list of completions for the incomplete value. Looks + at the names of options, subcommands, and chained + multi-commands. + + :param ctx: Invocation context for this command. + :param incomplete: Value being completed. May be empty. + + .. versionadded:: 8.0 + """ + from click.shell_completion import CompletionItem + + results = [ + CompletionItem(name, help=command.get_short_help_str()) + for name, command in _complete_visible_commands(ctx, incomplete) + ] + results.extend(super().shell_complete(ctx, incomplete)) + return results + + +class _MultiCommand(Group, metaclass=_FakeSubclassCheck): + """ + .. deprecated:: 8.2 + Will be removed in Click 9.0. Use ``Group`` instead. + """ + + +class CommandCollection(Group): + """A :class:`Group` that looks up subcommands on other groups. If a command + is not found on this group, each registered source is checked in order. + Parameters on a source are not added to this group, and a source's callback + is not invoked when invoking its commands. In other words, this "flattens" + commands in many groups into this one group. + + :param name: The name of the group command. + :param sources: A list of :class:`Group` objects to look up commands from. + :param kwargs: Other arguments passed to :class:`Group`. + + .. versionchanged:: 8.2 + This is a subclass of ``Group``. Commands are looked up first on this + group, then each of its sources. + """ + + def __init__( + self, + name: str | None = None, + sources: list[Group] | None = None, + **kwargs: t.Any, + ) -> None: + super().__init__(name, **kwargs) + #: The list of registered groups. + self.sources: list[Group] = sources or [] + + def add_source(self, group: Group) -> None: + """Add a group as a source of commands.""" + self.sources.append(group) + + def get_command(self, ctx: Context, cmd_name: str) -> Command | None: + rv = super().get_command(ctx, cmd_name) + + if rv is not None: + return rv + + for source in self.sources: + rv = source.get_command(ctx, cmd_name) + + if rv is not None: + if self.chain: + _check_nested_chain(self, cmd_name, rv) + + return rv + + return None + + def list_commands(self, ctx: Context) -> list[str]: + rv: set[str] = set(super().list_commands(ctx)) + + for source in self.sources: + rv.update(source.list_commands(ctx)) + + return sorted(rv) + + +def _check_iter(value: t.Any) -> cabc.Iterator[t.Any]: + """Check if the value is iterable but not a string. Raises a type + error, or return an iterator over the value. + """ + if isinstance(value, str): + raise TypeError + + return iter(value) + + +class Parameter: + r"""A parameter to a command comes in two versions: they are either + :class:`Option`\s or :class:`Argument`\s. Other subclasses are currently + not supported by design as some of the internals for parsing are + intentionally not finalized. + + Some settings are supported by both options and arguments. + + :param param_decls: the parameter declarations for this option or + argument. This is a list of flags or argument + names. + :param type: the type that should be used. Either a :class:`ParamType` + or a Python type. The latter is converted into the former + automatically if supported. + :param required: controls if this is optional or not. + :param default: the default value if omitted. This can also be a callable, + in which case it's invoked when the default is needed + without any arguments. + :param callback: A function to further process or validate the value + after type conversion. It is called as ``f(ctx, param, value)`` + and must return the value. It is called for all sources, + including prompts. + :param nargs: the number of arguments to match. If not ``1`` the return + value is a tuple instead of single value. The default for + nargs is ``1`` (except if the type is a tuple, then it's + the arity of the tuple). If ``nargs=-1``, all remaining + parameters are collected. + :param metavar: how the value is represented in the help page. + :param expose_value: if this is `True` then the value is passed onwards + to the command callback and stored on the context, + otherwise it's skipped. + :param is_eager: eager values are processed before non eager ones. This + should not be set for arguments or it will inverse the + order of processing. + :param envvar: a string or list of strings that are environment variables + that should be checked. + :param shell_complete: A function that returns custom shell + completions. Used instead of the param's type completion if + given. Takes ``ctx, param, incomplete`` and must return a list + of :class:`~click.shell_completion.CompletionItem` or a list of + strings. + :param deprecated: If ``True`` or non-empty string, issues a message + indicating that the argument is deprecated and highlights + its deprecation in --help. The message can be customized + by using a string as the value. A deprecated parameter + cannot be required, a ValueError will be raised otherwise. + + .. versionchanged:: 8.2.0 + Introduction of ``deprecated``. + + .. versionchanged:: 8.2 + Adding duplicate parameter names to a :class:`~click.core.Command` will + result in a ``UserWarning`` being shown. + + .. versionchanged:: 8.2 + Adding duplicate parameter names to a :class:`~click.core.Command` will + result in a ``UserWarning`` being shown. + + .. versionchanged:: 8.0 + ``process_value`` validates required parameters and bounded + ``nargs``, and invokes the parameter callback before returning + the value. This allows the callback to validate prompts. + ``full_process_value`` is removed. + + .. versionchanged:: 8.0 + ``autocompletion`` is renamed to ``shell_complete`` and has new + semantics described above. The old name is deprecated and will + be removed in 8.1, until then it will be wrapped to match the + new requirements. + + .. versionchanged:: 8.0 + For ``multiple=True, nargs>1``, the default must be a list of + tuples. + + .. versionchanged:: 8.0 + Setting a default is no longer required for ``nargs>1``, it will + default to ``None``. ``multiple=True`` or ``nargs=-1`` will + default to ``()``. + + .. versionchanged:: 7.1 + Empty environment variables are ignored rather than taking the + empty string value. This makes it possible for scripts to clear + variables if they can't unset them. + + .. versionchanged:: 2.0 + Changed signature for parameter callback to also be passed the + parameter. The old callback format will still work, but it will + raise a warning to give you a chance to migrate the code easier. + """ + + param_type_name = "parameter" + + def __init__( + self, + param_decls: cabc.Sequence[str] | None = None, + type: types.ParamType | t.Any | None = None, + required: bool = False, + default: t.Any | t.Callable[[], t.Any] | None = None, + callback: t.Callable[[Context, Parameter, t.Any], t.Any] | None = None, + nargs: int | None = None, + multiple: bool = False, + metavar: str | None = None, + expose_value: bool = True, + is_eager: bool = False, + envvar: str | cabc.Sequence[str] | None = None, + shell_complete: t.Callable[ + [Context, Parameter, str], list[CompletionItem] | list[str] + ] + | None = None, + deprecated: bool | str = False, + ) -> None: + self.name: str | None + self.opts: list[str] + self.secondary_opts: list[str] + self.name, self.opts, self.secondary_opts = self._parse_decls( + param_decls or (), expose_value + ) + self.type: types.ParamType = types.convert_type(type, default) + + # Default nargs to what the type tells us if we have that + # information available. + if nargs is None: + if self.type.is_composite: + nargs = self.type.arity + else: + nargs = 1 + + self.required = required + self.callback = callback + self.nargs = nargs + self.multiple = multiple + self.expose_value = expose_value + self.default = default + self.is_eager = is_eager + self.metavar = metavar + self.envvar = envvar + self._custom_shell_complete = shell_complete + self.deprecated = deprecated + + if __debug__: + if self.type.is_composite and nargs != self.type.arity: + raise ValueError( + f"'nargs' must be {self.type.arity} (or None) for" + f" type {self.type!r}, but it was {nargs}." + ) + + # Skip no default or callable default. + check_default = default if not callable(default) else None + + if check_default is not None: + if multiple: + try: + # Only check the first value against nargs. + check_default = next(_check_iter(check_default), None) + except TypeError: + raise ValueError( + "'default' must be a list when 'multiple' is true." + ) from None + + # Can be None for multiple with empty default. + if nargs != 1 and check_default is not None: + try: + _check_iter(check_default) + except TypeError: + if multiple: + message = ( + "'default' must be a list of lists when 'multiple' is" + " true and 'nargs' != 1." + ) + else: + message = "'default' must be a list when 'nargs' != 1." + + raise ValueError(message) from None + + if nargs > 1 and len(check_default) != nargs: + subject = "item length" if multiple else "length" + raise ValueError( + f"'default' {subject} must match nargs={nargs}." + ) + + if required and deprecated: + raise ValueError( + f"The {self.param_type_name} '{self.human_readable_name}' " + "is deprecated and still required. A deprecated " + f"{self.param_type_name} cannot be required." + ) + + def to_info_dict(self) -> dict[str, t.Any]: + """Gather information that could be useful for a tool generating + user-facing documentation. + + Use :meth:`click.Context.to_info_dict` to traverse the entire + CLI structure. + + .. versionadded:: 8.0 + """ + return { + "name": self.name, + "param_type_name": self.param_type_name, + "opts": self.opts, + "secondary_opts": self.secondary_opts, + "type": self.type.to_info_dict(), + "required": self.required, + "nargs": self.nargs, + "multiple": self.multiple, + "default": self.default, + "envvar": self.envvar, + } + + def __repr__(self) -> str: + return f"<{self.__class__.__name__} {self.name}>" + + def _parse_decls( + self, decls: cabc.Sequence[str], expose_value: bool + ) -> tuple[str | None, list[str], list[str]]: + raise NotImplementedError() + + @property + def human_readable_name(self) -> str: + """Returns the human readable name of this parameter. This is the + same as the name for options, but the metavar for arguments. + """ + return self.name # type: ignore + + def make_metavar(self, ctx: Context) -> str: + if self.metavar is not None: + return self.metavar + + metavar = self.type.get_metavar(param=self, ctx=ctx) + + if metavar is None: + metavar = self.type.name.upper() + + if self.nargs != 1: + metavar += "..." + + return metavar + + @t.overload + def get_default( + self, ctx: Context, call: t.Literal[True] = True + ) -> t.Any | None: ... + + @t.overload + def get_default( + self, ctx: Context, call: bool = ... + ) -> t.Any | t.Callable[[], t.Any] | None: ... + + def get_default( + self, ctx: Context, call: bool = True + ) -> t.Any | t.Callable[[], t.Any] | None: + """Get the default for the parameter. Tries + :meth:`Context.lookup_default` first, then the local default. + + :param ctx: Current context. + :param call: If the default is a callable, call it. Disable to + return the callable instead. + + .. versionchanged:: 8.0.2 + Type casting is no longer performed when getting a default. + + .. versionchanged:: 8.0.1 + Type casting can fail in resilient parsing mode. Invalid + defaults will not prevent showing help text. + + .. versionchanged:: 8.0 + Looks at ``ctx.default_map`` first. + + .. versionchanged:: 8.0 + Added the ``call`` parameter. + """ + value = ctx.lookup_default(self.name, call=False) # type: ignore + + if value is None: + value = self.default + + if call and callable(value): + value = value() + + return value + + def add_to_parser(self, parser: _OptionParser, ctx: Context) -> None: + raise NotImplementedError() + + def consume_value( + self, ctx: Context, opts: cabc.Mapping[str, t.Any] + ) -> tuple[t.Any, ParameterSource]: + value = opts.get(self.name) # type: ignore + source = ParameterSource.COMMANDLINE + + if value is None: + value = self.value_from_envvar(ctx) + source = ParameterSource.ENVIRONMENT + + if value is None: + value = ctx.lookup_default(self.name) # type: ignore + source = ParameterSource.DEFAULT_MAP + + if value is None: + value = self.get_default(ctx) + source = ParameterSource.DEFAULT + + return value, source + + def type_cast_value(self, ctx: Context, value: t.Any) -> t.Any: + """Convert and validate a value against the option's + :attr:`type`, :attr:`multiple`, and :attr:`nargs`. + """ + if value is None: + return () if self.multiple or self.nargs == -1 else None + + def check_iter(value: t.Any) -> cabc.Iterator[t.Any]: + try: + return _check_iter(value) + except TypeError: + # This should only happen when passing in args manually, + # the parser should construct an iterable when parsing + # the command line. + raise BadParameter( + _("Value must be an iterable."), ctx=ctx, param=self + ) from None + + if self.nargs == 1 or self.type.is_composite: + + def convert(value: t.Any) -> t.Any: + return self.type(value, param=self, ctx=ctx) + + elif self.nargs == -1: + + def convert(value: t.Any) -> t.Any: # tuple[t.Any, ...] + return tuple(self.type(x, self, ctx) for x in check_iter(value)) + + else: # nargs > 1 + + def convert(value: t.Any) -> t.Any: # tuple[t.Any, ...] + value = tuple(check_iter(value)) + + if len(value) != self.nargs: + raise BadParameter( + ngettext( + "Takes {nargs} values but 1 was given.", + "Takes {nargs} values but {len} were given.", + len(value), + ).format(nargs=self.nargs, len=len(value)), + ctx=ctx, + param=self, + ) + + return tuple(self.type(x, self, ctx) for x in value) + + if self.multiple: + return tuple(convert(x) for x in check_iter(value)) + + return convert(value) + + def value_is_missing(self, value: t.Any) -> bool: + if value is None: + return True + + if (self.nargs != 1 or self.multiple) and value == (): + return True + + return False + + def process_value(self, ctx: Context, value: t.Any) -> t.Any: + value = self.type_cast_value(ctx, value) + + if self.required and self.value_is_missing(value): + raise MissingParameter(ctx=ctx, param=self) + + if self.callback is not None: + value = self.callback(ctx, self, value) + + return value + + def resolve_envvar_value(self, ctx: Context) -> str | None: + if self.envvar is None: + return None + + if isinstance(self.envvar, str): + rv = os.environ.get(self.envvar) + + if rv: + return rv + else: + for envvar in self.envvar: + rv = os.environ.get(envvar) + + if rv: + return rv + + return None + + def value_from_envvar(self, ctx: Context) -> t.Any | None: + rv: t.Any | None = self.resolve_envvar_value(ctx) + + if rv is not None and self.nargs != 1: + rv = self.type.split_envvar_value(rv) + + return rv + + def handle_parse_result( + self, ctx: Context, opts: cabc.Mapping[str, t.Any], args: list[str] + ) -> tuple[t.Any, list[str]]: + with augment_usage_errors(ctx, param=self): + value, source = self.consume_value(ctx, opts) + + if ( + self.deprecated + and value is not None + and source + not in ( + ParameterSource.DEFAULT, + ParameterSource.DEFAULT_MAP, + ) + ): + extra_message = ( + f" {self.deprecated}" if isinstance(self.deprecated, str) else "" + ) + message = _( + "DeprecationWarning: The {param_type} {name!r} is deprecated." + "{extra_message}" + ).format( + param_type=self.param_type_name, + name=self.human_readable_name, + extra_message=extra_message, + ) + echo(style(message, fg="red"), err=True) + + ctx.set_parameter_source(self.name, source) # type: ignore + + try: + value = self.process_value(ctx, value) + except Exception: + if not ctx.resilient_parsing: + raise + + value = None + + if self.expose_value: + ctx.params[self.name] = value # type: ignore + + return value, args + + def get_help_record(self, ctx: Context) -> tuple[str, str] | None: + pass + + def get_usage_pieces(self, ctx: Context) -> list[str]: + return [] + + def get_error_hint(self, ctx: Context) -> str: + """Get a stringified version of the param for use in error messages to + indicate which param caused the error. + """ + hint_list = self.opts or [self.human_readable_name] + return " / ".join(f"'{x}'" for x in hint_list) + + def shell_complete(self, ctx: Context, incomplete: str) -> list[CompletionItem]: + """Return a list of completions for the incomplete value. If a + ``shell_complete`` function was given during init, it is used. + Otherwise, the :attr:`type` + :meth:`~click.types.ParamType.shell_complete` function is used. + + :param ctx: Invocation context for this command. + :param incomplete: Value being completed. May be empty. + + .. versionadded:: 8.0 + """ + if self._custom_shell_complete is not None: + results = self._custom_shell_complete(ctx, self, incomplete) + + if results and isinstance(results[0], str): + from click.shell_completion import CompletionItem + + results = [CompletionItem(c) for c in results] + + return t.cast("list[CompletionItem]", results) + + return self.type.shell_complete(ctx, self, incomplete) + + +class Option(Parameter): + """Options are usually optional values on the command line and + have some extra features that arguments don't have. + + All other parameters are passed onwards to the parameter constructor. + + :param show_default: Show the default value for this option in its + help text. Values are not shown by default, unless + :attr:`Context.show_default` is ``True``. If this value is a + string, it shows that string in parentheses instead of the + actual value. This is particularly useful for dynamic options. + For single option boolean flags, the default remains hidden if + its value is ``False``. + :param show_envvar: Controls if an environment variable should be + shown on the help page and error messages. + Normally, environment variables are not shown. + :param prompt: If set to ``True`` or a non empty string then the + user will be prompted for input. If set to ``True`` the prompt + will be the option name capitalized. A deprecated option cannot be + prompted. + :param confirmation_prompt: Prompt a second time to confirm the + value if it was prompted for. Can be set to a string instead of + ``True`` to customize the message. + :param prompt_required: If set to ``False``, the user will be + prompted for input only when the option was specified as a flag + without a value. + :param hide_input: If this is ``True`` then the input on the prompt + will be hidden from the user. This is useful for password input. + :param is_flag: forces this option to act as a flag. The default is + auto detection. + :param flag_value: which value should be used for this flag if it's + enabled. This is set to a boolean automatically if + the option string contains a slash to mark two options. + :param multiple: if this is set to `True` then the argument is accepted + multiple times and recorded. This is similar to ``nargs`` + in how it works but supports arbitrary number of + arguments. + :param count: this flag makes an option increment an integer. + :param allow_from_autoenv: if this is enabled then the value of this + parameter will be pulled from an environment + variable in case a prefix is defined on the + context. + :param help: the help string. + :param hidden: hide this option from help outputs. + :param attrs: Other command arguments described in :class:`Parameter`. + + .. versionchanged:: 8.2 + ``envvar`` used with ``flag_value`` will always use the ``flag_value``, + previously it would use the value of the environment variable. + + .. versionchanged:: 8.1 + Help text indentation is cleaned here instead of only in the + ``@option`` decorator. + + .. versionchanged:: 8.1 + The ``show_default`` parameter overrides + ``Context.show_default``. + + .. versionchanged:: 8.1 + The default of a single option boolean flag is not shown if the + default value is ``False``. + + .. versionchanged:: 8.0.1 + ``type`` is detected from ``flag_value`` if given. + """ + + param_type_name = "option" + + def __init__( + self, + param_decls: cabc.Sequence[str] | None = None, + show_default: bool | str | None = None, + prompt: bool | str = False, + confirmation_prompt: bool | str = False, + prompt_required: bool = True, + hide_input: bool = False, + is_flag: bool | None = None, + flag_value: t.Any | None = None, + multiple: bool = False, + count: bool = False, + allow_from_autoenv: bool = True, + type: types.ParamType | t.Any | None = None, + help: str | None = None, + hidden: bool = False, + show_choices: bool = True, + show_envvar: bool = False, + deprecated: bool | str = False, + **attrs: t.Any, + ) -> None: + if help: + help = inspect.cleandoc(help) + + default_is_missing = "default" not in attrs + super().__init__( + param_decls, type=type, multiple=multiple, deprecated=deprecated, **attrs + ) + + if prompt is True: + if self.name is None: + raise TypeError("'name' is required with 'prompt=True'.") + + prompt_text: str | None = self.name.replace("_", " ").capitalize() + elif prompt is False: + prompt_text = None + else: + prompt_text = prompt + + if deprecated: + deprecated_message = ( + f"(DEPRECATED: {deprecated})" + if isinstance(deprecated, str) + else "(DEPRECATED)" + ) + help = help + deprecated_message if help is not None else deprecated_message + + self.prompt = prompt_text + self.confirmation_prompt = confirmation_prompt + self.prompt_required = prompt_required + self.hide_input = hide_input + self.hidden = hidden + + # If prompt is enabled but not required, then the option can be + # used as a flag to indicate using prompt or flag_value. + self._flag_needs_value = self.prompt is not None and not self.prompt_required + + if is_flag is None: + if flag_value is not None: + # Implicitly a flag because flag_value was set. + is_flag = True + elif self._flag_needs_value: + # Not a flag, but when used as a flag it shows a prompt. + is_flag = False + else: + # Implicitly a flag because flag options were given. + is_flag = bool(self.secondary_opts) + elif is_flag is False and not self._flag_needs_value: + # Not a flag, and prompt is not enabled, can be used as a + # flag if flag_value is set. + self._flag_needs_value = flag_value is not None + + self.default: t.Any | t.Callable[[], t.Any] + + if is_flag and default_is_missing and not self.required: + if multiple: + self.default = () + else: + self.default = False + + if is_flag and flag_value is None: + flag_value = not self.default + + self.type: types.ParamType + if is_flag and type is None: + # Re-guess the type from the flag value instead of the + # default. + self.type = types.convert_type(None, flag_value) + + self.is_flag: bool = is_flag + self.is_bool_flag: bool = is_flag and isinstance(self.type, types.BoolParamType) + self.flag_value: t.Any = flag_value + + # Counting + self.count = count + if count: + if type is None: + self.type = types.IntRange(min=0) + if default_is_missing: + self.default = 0 + + self.allow_from_autoenv = allow_from_autoenv + self.help = help + self.show_default = show_default + self.show_choices = show_choices + self.show_envvar = show_envvar + + if __debug__: + if deprecated and prompt: + raise ValueError("`deprecated` options cannot use `prompt`.") + + if self.nargs == -1: + raise TypeError("nargs=-1 is not supported for options.") + + if self.prompt and self.is_flag and not self.is_bool_flag: + raise TypeError("'prompt' is not valid for non-boolean flag.") + + if not self.is_bool_flag and self.secondary_opts: + raise TypeError("Secondary flag is not valid for non-boolean flag.") + + if self.is_bool_flag and self.hide_input and self.prompt is not None: + raise TypeError( + "'prompt' with 'hide_input' is not valid for boolean flag." + ) + + if self.count: + if self.multiple: + raise TypeError("'count' is not valid with 'multiple'.") + + if self.is_flag: + raise TypeError("'count' is not valid with 'is_flag'.") + + def to_info_dict(self) -> dict[str, t.Any]: + info_dict = super().to_info_dict() + info_dict.update( + help=self.help, + prompt=self.prompt, + is_flag=self.is_flag, + flag_value=self.flag_value, + count=self.count, + hidden=self.hidden, + ) + return info_dict + + def get_error_hint(self, ctx: Context) -> str: + result = super().get_error_hint(ctx) + if self.show_envvar: + result += f" (env var: '{self.envvar}')" + return result + + def _parse_decls( + self, decls: cabc.Sequence[str], expose_value: bool + ) -> tuple[str | None, list[str], list[str]]: + opts = [] + secondary_opts = [] + name = None + possible_names = [] + + for decl in decls: + if decl.isidentifier(): + if name is not None: + raise TypeError(f"Name '{name}' defined twice") + name = decl + else: + split_char = ";" if decl[:1] == "/" else "/" + if split_char in decl: + first, second = decl.split(split_char, 1) + first = first.rstrip() + if first: + possible_names.append(_split_opt(first)) + opts.append(first) + second = second.lstrip() + if second: + secondary_opts.append(second.lstrip()) + if first == second: + raise ValueError( + f"Boolean option {decl!r} cannot use the" + " same flag for true/false." + ) + else: + possible_names.append(_split_opt(decl)) + opts.append(decl) + + if name is None and possible_names: + possible_names.sort(key=lambda x: -len(x[0])) # group long options first + name = possible_names[0][1].replace("-", "_").lower() + if not name.isidentifier(): + name = None + + if name is None: + if not expose_value: + return None, opts, secondary_opts + raise TypeError( + f"Could not determine name for option with declarations {decls!r}" + ) + + if not opts and not secondary_opts: + raise TypeError( + f"No options defined but a name was passed ({name})." + " Did you mean to declare an argument instead? Did" + f" you mean to pass '--{name}'?" + ) + + return name, opts, secondary_opts + + def add_to_parser(self, parser: _OptionParser, ctx: Context) -> None: + if self.multiple: + action = "append" + elif self.count: + action = "count" + else: + action = "store" + + if self.is_flag: + action = f"{action}_const" + + if self.is_bool_flag and self.secondary_opts: + parser.add_option( + obj=self, opts=self.opts, dest=self.name, action=action, const=True + ) + parser.add_option( + obj=self, + opts=self.secondary_opts, + dest=self.name, + action=action, + const=False, + ) + else: + parser.add_option( + obj=self, + opts=self.opts, + dest=self.name, + action=action, + const=self.flag_value, + ) + else: + parser.add_option( + obj=self, + opts=self.opts, + dest=self.name, + action=action, + nargs=self.nargs, + ) + + def get_help_record(self, ctx: Context) -> tuple[str, str] | None: + if self.hidden: + return None + + any_prefix_is_slash = False + + def _write_opts(opts: cabc.Sequence[str]) -> str: + nonlocal any_prefix_is_slash + + rv, any_slashes = join_options(opts) + + if any_slashes: + any_prefix_is_slash = True + + if not self.is_flag and not self.count: + rv += f" {self.make_metavar(ctx=ctx)}" + + return rv + + rv = [_write_opts(self.opts)] + + if self.secondary_opts: + rv.append(_write_opts(self.secondary_opts)) + + help = self.help or "" + + extra = self.get_help_extra(ctx) + extra_items = [] + if "envvars" in extra: + extra_items.append( + _("env var: {var}").format(var=", ".join(extra["envvars"])) + ) + if "default" in extra: + extra_items.append(_("default: {default}").format(default=extra["default"])) + if "range" in extra: + extra_items.append(extra["range"]) + if "required" in extra: + extra_items.append(_(extra["required"])) + + if extra_items: + extra_str = "; ".join(extra_items) + help = f"{help} [{extra_str}]" if help else f"[{extra_str}]" + + return ("; " if any_prefix_is_slash else " / ").join(rv), help + + def get_help_extra(self, ctx: Context) -> types.OptionHelpExtra: + extra: types.OptionHelpExtra = {} + + if self.show_envvar: + envvar = self.envvar + + if envvar is None: + if ( + self.allow_from_autoenv + and ctx.auto_envvar_prefix is not None + and self.name is not None + ): + envvar = f"{ctx.auto_envvar_prefix}_{self.name.upper()}" + + if envvar is not None: + if isinstance(envvar, str): + extra["envvars"] = (envvar,) + else: + extra["envvars"] = tuple(str(d) for d in envvar) + + # Temporarily enable resilient parsing to avoid type casting + # failing for the default. Might be possible to extend this to + # help formatting in general. + resilient = ctx.resilient_parsing + ctx.resilient_parsing = True + + try: + default_value = self.get_default(ctx, call=False) + finally: + ctx.resilient_parsing = resilient + + show_default = False + show_default_is_str = False + + if self.show_default is not None: + if isinstance(self.show_default, str): + show_default_is_str = show_default = True + else: + show_default = self.show_default + elif ctx.show_default is not None: + show_default = ctx.show_default + + if show_default_is_str or (show_default and (default_value is not None)): + if show_default_is_str: + default_string = f"({self.show_default})" + elif isinstance(default_value, (list, tuple)): + default_string = ", ".join(str(d) for d in default_value) + elif inspect.isfunction(default_value): + default_string = _("(dynamic)") + elif self.is_bool_flag and self.secondary_opts: + # For boolean flags that have distinct True/False opts, + # use the opt without prefix instead of the value. + default_string = _split_opt( + (self.opts if default_value else self.secondary_opts)[0] + )[1] + elif self.is_bool_flag and not self.secondary_opts and not default_value: + default_string = "" + elif default_value == "": + default_string = '""' + else: + default_string = str(default_value) + + if default_string: + extra["default"] = default_string + + if ( + isinstance(self.type, types._NumberRangeBase) + # skip count with default range type + and not (self.count and self.type.min == 0 and self.type.max is None) + ): + range_str = self.type._describe_range() + + if range_str: + extra["range"] = range_str + + if self.required: + extra["required"] = "required" + + return extra + + @t.overload + def get_default( + self, ctx: Context, call: t.Literal[True] = True + ) -> t.Any | None: ... + + @t.overload + def get_default( + self, ctx: Context, call: bool = ... + ) -> t.Any | t.Callable[[], t.Any] | None: ... + + def get_default( + self, ctx: Context, call: bool = True + ) -> t.Any | t.Callable[[], t.Any] | None: + # If we're a non boolean flag our default is more complex because + # we need to look at all flags in the same group to figure out + # if we're the default one in which case we return the flag + # value as default. + if self.is_flag and not self.is_bool_flag: + for param in ctx.command.params: + if param.name == self.name and param.default: + return t.cast(Option, param).flag_value + + return None + + return super().get_default(ctx, call=call) + + def prompt_for_value(self, ctx: Context) -> t.Any: + """This is an alternative flow that can be activated in the full + value processing if a value does not exist. It will prompt the + user until a valid value exists and then returns the processed + value as result. + """ + assert self.prompt is not None + + # Calculate the default before prompting anything to be stable. + default = self.get_default(ctx) + + # If this is a prompt for a flag we need to handle this + # differently. + if self.is_bool_flag: + return confirm(self.prompt, default) + + # If show_default is set to True/False, provide this to `prompt` as well. For + # non-bool values of `show_default`, we use `prompt`'s default behavior + prompt_kwargs: t.Any = {} + if isinstance(self.show_default, bool): + prompt_kwargs["show_default"] = self.show_default + + return prompt( + self.prompt, + default=default, + type=self.type, + hide_input=self.hide_input, + show_choices=self.show_choices, + confirmation_prompt=self.confirmation_prompt, + value_proc=lambda x: self.process_value(ctx, x), + **prompt_kwargs, + ) + + def resolve_envvar_value(self, ctx: Context) -> str | None: + rv = super().resolve_envvar_value(ctx) + + if rv is not None: + if self.is_flag and self.flag_value: + return str(self.flag_value) + return rv + + if ( + self.allow_from_autoenv + and ctx.auto_envvar_prefix is not None + and self.name is not None + ): + envvar = f"{ctx.auto_envvar_prefix}_{self.name.upper()}" + rv = os.environ.get(envvar) + + if rv: + return rv + + return None + + def value_from_envvar(self, ctx: Context) -> t.Any | None: + rv: t.Any | None = self.resolve_envvar_value(ctx) + + if rv is None: + return None + + value_depth = (self.nargs != 1) + bool(self.multiple) + + if value_depth > 0: + rv = self.type.split_envvar_value(rv) + + if self.multiple and self.nargs != 1: + rv = batch(rv, self.nargs) + + return rv + + def consume_value( + self, ctx: Context, opts: cabc.Mapping[str, Parameter] + ) -> tuple[t.Any, ParameterSource]: + value, source = super().consume_value(ctx, opts) + + # The parser will emit a sentinel value if the option can be + # given as a flag without a value. This is different from None + # to distinguish from the flag not being given at all. + if value is _flag_needs_value: + if self.prompt is not None and not ctx.resilient_parsing: + value = self.prompt_for_value(ctx) + source = ParameterSource.PROMPT + else: + value = self.flag_value + source = ParameterSource.COMMANDLINE + + elif ( + self.multiple + and value is not None + and any(v is _flag_needs_value for v in value) + ): + value = [self.flag_value if v is _flag_needs_value else v for v in value] + source = ParameterSource.COMMANDLINE + + # The value wasn't set, or used the param's default, prompt if + # prompting is enabled. + elif ( + source in {None, ParameterSource.DEFAULT} + and self.prompt is not None + and (self.required or self.prompt_required) + and not ctx.resilient_parsing + ): + value = self.prompt_for_value(ctx) + source = ParameterSource.PROMPT + + return value, source + + +class Argument(Parameter): + """Arguments are positional parameters to a command. They generally + provide fewer features than options but can have infinite ``nargs`` + and are required by default. + + All parameters are passed onwards to the constructor of :class:`Parameter`. + """ + + param_type_name = "argument" + + def __init__( + self, + param_decls: cabc.Sequence[str], + required: bool | None = None, + **attrs: t.Any, + ) -> None: + if required is None: + if attrs.get("default") is not None: + required = False + else: + required = attrs.get("nargs", 1) > 0 + + if "multiple" in attrs: + raise TypeError("__init__() got an unexpected keyword argument 'multiple'.") + + super().__init__(param_decls, required=required, **attrs) + + if __debug__: + if self.default is not None and self.nargs == -1: + raise TypeError("'default' is not supported for nargs=-1.") + + @property + def human_readable_name(self) -> str: + if self.metavar is not None: + return self.metavar + return self.name.upper() # type: ignore + + def make_metavar(self, ctx: Context) -> str: + if self.metavar is not None: + return self.metavar + var = self.type.get_metavar(param=self, ctx=ctx) + if not var: + var = self.name.upper() # type: ignore + if self.deprecated: + var += "!" + if not self.required: + var = f"[{var}]" + if self.nargs != 1: + var += "..." + return var + + def _parse_decls( + self, decls: cabc.Sequence[str], expose_value: bool + ) -> tuple[str | None, list[str], list[str]]: + if not decls: + if not expose_value: + return None, [], [] + raise TypeError("Argument is marked as exposed, but does not have a name.") + if len(decls) == 1: + name = arg = decls[0] + name = name.replace("-", "_").lower() + else: + raise TypeError( + "Arguments take exactly one parameter declaration, got" + f" {len(decls)}: {decls}." + ) + return name, [arg], [] + + def get_usage_pieces(self, ctx: Context) -> list[str]: + return [self.make_metavar(ctx)] + + def get_error_hint(self, ctx: Context) -> str: + return f"'{self.make_metavar(ctx)}'" + + def add_to_parser(self, parser: _OptionParser, ctx: Context) -> None: + parser.add_argument(dest=self.name, nargs=self.nargs, obj=self) + + +def __getattr__(name: str) -> object: + import warnings + + if name == "BaseCommand": + warnings.warn( + "'BaseCommand' is deprecated and will be removed in Click 9.0. Use" + " 'Command' instead.", + DeprecationWarning, + stacklevel=2, + ) + return _BaseCommand + + if name == "MultiCommand": + warnings.warn( + "'MultiCommand' is deprecated and will be removed in Click 9.0. Use" + " 'Group' instead.", + DeprecationWarning, + stacklevel=2, + ) + return _MultiCommand + + raise AttributeError(name) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/decorators.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/decorators.py new file mode 100644 index 0000000000000000000000000000000000000000..21f4c342245fa93a7946b17d7661e0d2fa6a0c29 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/decorators.py @@ -0,0 +1,551 @@ +from __future__ import annotations + +import inspect +import typing as t +from functools import update_wrapper +from gettext import gettext as _ + +from .core import Argument +from .core import Command +from .core import Context +from .core import Group +from .core import Option +from .core import Parameter +from .globals import get_current_context +from .utils import echo + +if t.TYPE_CHECKING: + import typing_extensions as te + + P = te.ParamSpec("P") + +R = t.TypeVar("R") +T = t.TypeVar("T") +_AnyCallable = t.Callable[..., t.Any] +FC = t.TypeVar("FC", bound="_AnyCallable | Command") + + +def pass_context(f: t.Callable[te.Concatenate[Context, P], R]) -> t.Callable[P, R]: + """Marks a callback as wanting to receive the current context + object as first argument. + """ + + def new_func(*args: P.args, **kwargs: P.kwargs) -> R: + return f(get_current_context(), *args, **kwargs) + + return update_wrapper(new_func, f) + + +def pass_obj(f: t.Callable[te.Concatenate[T, P], R]) -> t.Callable[P, R]: + """Similar to :func:`pass_context`, but only pass the object on the + context onwards (:attr:`Context.obj`). This is useful if that object + represents the state of a nested system. + """ + + def new_func(*args: P.args, **kwargs: P.kwargs) -> R: + return f(get_current_context().obj, *args, **kwargs) + + return update_wrapper(new_func, f) + + +def make_pass_decorator( + object_type: type[T], ensure: bool = False +) -> t.Callable[[t.Callable[te.Concatenate[T, P], R]], t.Callable[P, R]]: + """Given an object type this creates a decorator that will work + similar to :func:`pass_obj` but instead of passing the object of the + current context, it will find the innermost context of type + :func:`object_type`. + + This generates a decorator that works roughly like this:: + + from functools import update_wrapper + + def decorator(f): + @pass_context + def new_func(ctx, *args, **kwargs): + obj = ctx.find_object(object_type) + return ctx.invoke(f, obj, *args, **kwargs) + return update_wrapper(new_func, f) + return decorator + + :param object_type: the type of the object to pass. + :param ensure: if set to `True`, a new object will be created and + remembered on the context if it's not there yet. + """ + + def decorator(f: t.Callable[te.Concatenate[T, P], R]) -> t.Callable[P, R]: + def new_func(*args: P.args, **kwargs: P.kwargs) -> R: + ctx = get_current_context() + + obj: T | None + if ensure: + obj = ctx.ensure_object(object_type) + else: + obj = ctx.find_object(object_type) + + if obj is None: + raise RuntimeError( + "Managed to invoke callback without a context" + f" object of type {object_type.__name__!r}" + " existing." + ) + + return ctx.invoke(f, obj, *args, **kwargs) + + return update_wrapper(new_func, f) + + return decorator + + +def pass_meta_key( + key: str, *, doc_description: str | None = None +) -> t.Callable[[t.Callable[te.Concatenate[T, P], R]], t.Callable[P, R]]: + """Create a decorator that passes a key from + :attr:`click.Context.meta` as the first argument to the decorated + function. + + :param key: Key in ``Context.meta`` to pass. + :param doc_description: Description of the object being passed, + inserted into the decorator's docstring. Defaults to "the 'key' + key from Context.meta". + + .. versionadded:: 8.0 + """ + + def decorator(f: t.Callable[te.Concatenate[T, P], R]) -> t.Callable[P, R]: + def new_func(*args: P.args, **kwargs: P.kwargs) -> R: + ctx = get_current_context() + obj = ctx.meta[key] + return ctx.invoke(f, obj, *args, **kwargs) + + return update_wrapper(new_func, f) + + if doc_description is None: + doc_description = f"the {key!r} key from :attr:`click.Context.meta`" + + decorator.__doc__ = ( + f"Decorator that passes {doc_description} as the first argument" + " to the decorated function." + ) + return decorator + + +CmdType = t.TypeVar("CmdType", bound=Command) + + +# variant: no call, directly as decorator for a function. +@t.overload +def command(name: _AnyCallable) -> Command: ... + + +# variant: with positional name and with positional or keyword cls argument: +# @command(namearg, CommandCls, ...) or @command(namearg, cls=CommandCls, ...) +@t.overload +def command( + name: str | None, + cls: type[CmdType], + **attrs: t.Any, +) -> t.Callable[[_AnyCallable], CmdType]: ... + + +# variant: name omitted, cls _must_ be a keyword argument, @command(cls=CommandCls, ...) +@t.overload +def command( + name: None = None, + *, + cls: type[CmdType], + **attrs: t.Any, +) -> t.Callable[[_AnyCallable], CmdType]: ... + + +# variant: with optional string name, no cls argument provided. +@t.overload +def command( + name: str | None = ..., cls: None = None, **attrs: t.Any +) -> t.Callable[[_AnyCallable], Command]: ... + + +def command( + name: str | _AnyCallable | None = None, + cls: type[CmdType] | None = None, + **attrs: t.Any, +) -> Command | t.Callable[[_AnyCallable], Command | CmdType]: + r"""Creates a new :class:`Command` and uses the decorated function as + callback. This will also automatically attach all decorated + :func:`option`\s and :func:`argument`\s as parameters to the command. + + The name of the command defaults to the name of the function, converted to + lowercase, with underscores ``_`` replaced by dashes ``-``, and the suffixes + ``_command``, ``_cmd``, ``_group``, and ``_grp`` are removed. For example, + ``init_data_command`` becomes ``init-data``. + + All keyword arguments are forwarded to the underlying command class. + For the ``params`` argument, any decorated params are appended to + the end of the list. + + Once decorated the function turns into a :class:`Command` instance + that can be invoked as a command line utility or be attached to a + command :class:`Group`. + + :param name: The name of the command. Defaults to modifying the function's + name as described above. + :param cls: The command class to create. Defaults to :class:`Command`. + + .. versionchanged:: 8.2 + The suffixes ``_command``, ``_cmd``, ``_group``, and ``_grp`` are + removed when generating the name. + + .. versionchanged:: 8.1 + This decorator can be applied without parentheses. + + .. versionchanged:: 8.1 + The ``params`` argument can be used. Decorated params are + appended to the end of the list. + """ + + func: t.Callable[[_AnyCallable], t.Any] | None = None + + if callable(name): + func = name + name = None + assert cls is None, "Use 'command(cls=cls)(callable)' to specify a class." + assert not attrs, "Use 'command(**kwargs)(callable)' to provide arguments." + + if cls is None: + cls = t.cast("type[CmdType]", Command) + + def decorator(f: _AnyCallable) -> CmdType: + if isinstance(f, Command): + raise TypeError("Attempted to convert a callback into a command twice.") + + attr_params = attrs.pop("params", None) + params = attr_params if attr_params is not None else [] + + try: + decorator_params = f.__click_params__ # type: ignore + except AttributeError: + pass + else: + del f.__click_params__ # type: ignore + params.extend(reversed(decorator_params)) + + if attrs.get("help") is None: + attrs["help"] = f.__doc__ + + if t.TYPE_CHECKING: + assert cls is not None + assert not callable(name) + + if name is not None: + cmd_name = name + else: + cmd_name = f.__name__.lower().replace("_", "-") + cmd_left, sep, suffix = cmd_name.rpartition("-") + + if sep and suffix in {"command", "cmd", "group", "grp"}: + cmd_name = cmd_left + + cmd = cls(name=cmd_name, callback=f, params=params, **attrs) + cmd.__doc__ = f.__doc__ + return cmd + + if func is not None: + return decorator(func) + + return decorator + + +GrpType = t.TypeVar("GrpType", bound=Group) + + +# variant: no call, directly as decorator for a function. +@t.overload +def group(name: _AnyCallable) -> Group: ... + + +# variant: with positional name and with positional or keyword cls argument: +# @group(namearg, GroupCls, ...) or @group(namearg, cls=GroupCls, ...) +@t.overload +def group( + name: str | None, + cls: type[GrpType], + **attrs: t.Any, +) -> t.Callable[[_AnyCallable], GrpType]: ... + + +# variant: name omitted, cls _must_ be a keyword argument, @group(cmd=GroupCls, ...) +@t.overload +def group( + name: None = None, + *, + cls: type[GrpType], + **attrs: t.Any, +) -> t.Callable[[_AnyCallable], GrpType]: ... + + +# variant: with optional string name, no cls argument provided. +@t.overload +def group( + name: str | None = ..., cls: None = None, **attrs: t.Any +) -> t.Callable[[_AnyCallable], Group]: ... + + +def group( + name: str | _AnyCallable | None = None, + cls: type[GrpType] | None = None, + **attrs: t.Any, +) -> Group | t.Callable[[_AnyCallable], Group | GrpType]: + """Creates a new :class:`Group` with a function as callback. This + works otherwise the same as :func:`command` just that the `cls` + parameter is set to :class:`Group`. + + .. versionchanged:: 8.1 + This decorator can be applied without parentheses. + """ + if cls is None: + cls = t.cast("type[GrpType]", Group) + + if callable(name): + return command(cls=cls, **attrs)(name) + + return command(name, cls, **attrs) + + +def _param_memo(f: t.Callable[..., t.Any], param: Parameter) -> None: + if isinstance(f, Command): + f.params.append(param) + else: + if not hasattr(f, "__click_params__"): + f.__click_params__ = [] # type: ignore + + f.__click_params__.append(param) # type: ignore + + +def argument( + *param_decls: str, cls: type[Argument] | None = None, **attrs: t.Any +) -> t.Callable[[FC], FC]: + """Attaches an argument to the command. All positional arguments are + passed as parameter declarations to :class:`Argument`; all keyword + arguments are forwarded unchanged (except ``cls``). + This is equivalent to creating an :class:`Argument` instance manually + and attaching it to the :attr:`Command.params` list. + + For the default argument class, refer to :class:`Argument` and + :class:`Parameter` for descriptions of parameters. + + :param cls: the argument class to instantiate. This defaults to + :class:`Argument`. + :param param_decls: Passed as positional arguments to the constructor of + ``cls``. + :param attrs: Passed as keyword arguments to the constructor of ``cls``. + """ + if cls is None: + cls = Argument + + def decorator(f: FC) -> FC: + _param_memo(f, cls(param_decls, **attrs)) + return f + + return decorator + + +def option( + *param_decls: str, cls: type[Option] | None = None, **attrs: t.Any +) -> t.Callable[[FC], FC]: + """Attaches an option to the command. All positional arguments are + passed as parameter declarations to :class:`Option`; all keyword + arguments are forwarded unchanged (except ``cls``). + This is equivalent to creating an :class:`Option` instance manually + and attaching it to the :attr:`Command.params` list. + + For the default option class, refer to :class:`Option` and + :class:`Parameter` for descriptions of parameters. + + :param cls: the option class to instantiate. This defaults to + :class:`Option`. + :param param_decls: Passed as positional arguments to the constructor of + ``cls``. + :param attrs: Passed as keyword arguments to the constructor of ``cls``. + """ + if cls is None: + cls = Option + + def decorator(f: FC) -> FC: + _param_memo(f, cls(param_decls, **attrs)) + return f + + return decorator + + +def confirmation_option(*param_decls: str, **kwargs: t.Any) -> t.Callable[[FC], FC]: + """Add a ``--yes`` option which shows a prompt before continuing if + not passed. If the prompt is declined, the program will exit. + + :param param_decls: One or more option names. Defaults to the single + value ``"--yes"``. + :param kwargs: Extra arguments are passed to :func:`option`. + """ + + def callback(ctx: Context, param: Parameter, value: bool) -> None: + if not value: + ctx.abort() + + if not param_decls: + param_decls = ("--yes",) + + kwargs.setdefault("is_flag", True) + kwargs.setdefault("callback", callback) + kwargs.setdefault("expose_value", False) + kwargs.setdefault("prompt", "Do you want to continue?") + kwargs.setdefault("help", "Confirm the action without prompting.") + return option(*param_decls, **kwargs) + + +def password_option(*param_decls: str, **kwargs: t.Any) -> t.Callable[[FC], FC]: + """Add a ``--password`` option which prompts for a password, hiding + input and asking to enter the value again for confirmation. + + :param param_decls: One or more option names. Defaults to the single + value ``"--password"``. + :param kwargs: Extra arguments are passed to :func:`option`. + """ + if not param_decls: + param_decls = ("--password",) + + kwargs.setdefault("prompt", True) + kwargs.setdefault("confirmation_prompt", True) + kwargs.setdefault("hide_input", True) + return option(*param_decls, **kwargs) + + +def version_option( + version: str | None = None, + *param_decls: str, + package_name: str | None = None, + prog_name: str | None = None, + message: str | None = None, + **kwargs: t.Any, +) -> t.Callable[[FC], FC]: + """Add a ``--version`` option which immediately prints the version + number and exits the program. + + If ``version`` is not provided, Click will try to detect it using + :func:`importlib.metadata.version` to get the version for the + ``package_name``. + + If ``package_name`` is not provided, Click will try to detect it by + inspecting the stack frames. This will be used to detect the + version, so it must match the name of the installed package. + + :param version: The version number to show. If not provided, Click + will try to detect it. + :param param_decls: One or more option names. Defaults to the single + value ``"--version"``. + :param package_name: The package name to detect the version from. If + not provided, Click will try to detect it. + :param prog_name: The name of the CLI to show in the message. If not + provided, it will be detected from the command. + :param message: The message to show. The values ``%(prog)s``, + ``%(package)s``, and ``%(version)s`` are available. Defaults to + ``"%(prog)s, version %(version)s"``. + :param kwargs: Extra arguments are passed to :func:`option`. + :raise RuntimeError: ``version`` could not be detected. + + .. versionchanged:: 8.0 + Add the ``package_name`` parameter, and the ``%(package)s`` + value for messages. + + .. versionchanged:: 8.0 + Use :mod:`importlib.metadata` instead of ``pkg_resources``. The + version is detected based on the package name, not the entry + point name. The Python package name must match the installed + package name, or be passed with ``package_name=``. + """ + if message is None: + message = _("%(prog)s, version %(version)s") + + if version is None and package_name is None: + frame = inspect.currentframe() + f_back = frame.f_back if frame is not None else None + f_globals = f_back.f_globals if f_back is not None else None + # break reference cycle + # https://docs.python.org/3/library/inspect.html#the-interpreter-stack + del frame + + if f_globals is not None: + package_name = f_globals.get("__name__") + + if package_name == "__main__": + package_name = f_globals.get("__package__") + + if package_name: + package_name = package_name.partition(".")[0] + + def callback(ctx: Context, param: Parameter, value: bool) -> None: + if not value or ctx.resilient_parsing: + return + + nonlocal prog_name + nonlocal version + + if prog_name is None: + prog_name = ctx.find_root().info_name + + if version is None and package_name is not None: + import importlib.metadata + + try: + version = importlib.metadata.version(package_name) + except importlib.metadata.PackageNotFoundError: + raise RuntimeError( + f"{package_name!r} is not installed. Try passing" + " 'package_name' instead." + ) from None + + if version is None: + raise RuntimeError( + f"Could not determine the version for {package_name!r} automatically." + ) + + echo( + message % {"prog": prog_name, "package": package_name, "version": version}, + color=ctx.color, + ) + ctx.exit() + + if not param_decls: + param_decls = ("--version",) + + kwargs.setdefault("is_flag", True) + kwargs.setdefault("expose_value", False) + kwargs.setdefault("is_eager", True) + kwargs.setdefault("help", _("Show the version and exit.")) + kwargs["callback"] = callback + return option(*param_decls, **kwargs) + + +def help_option(*param_decls: str, **kwargs: t.Any) -> t.Callable[[FC], FC]: + """Pre-configured ``--help`` option which immediately prints the help page + and exits the program. + + :param param_decls: One or more option names. Defaults to the single + value ``"--help"``. + :param kwargs: Extra arguments are passed to :func:`option`. + """ + + def show_help(ctx: Context, param: Parameter, value: bool) -> None: + """Callback that print the help page on ```` and exits.""" + if value and not ctx.resilient_parsing: + echo(ctx.get_help(), color=ctx.color) + ctx.exit() + + if not param_decls: + param_decls = ("--help",) + + kwargs.setdefault("is_flag", True) + kwargs.setdefault("expose_value", False) + kwargs.setdefault("is_eager", True) + kwargs.setdefault("help", _("Show this message and exit.")) + kwargs.setdefault("callback", show_help) + + return option(*param_decls, **kwargs) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/exceptions.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/exceptions.py new file mode 100644 index 0000000000000000000000000000000000000000..f141a832e1ab678709998c3bbafcdea6561b9661 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/exceptions.py @@ -0,0 +1,308 @@ +from __future__ import annotations + +import collections.abc as cabc +import typing as t +from gettext import gettext as _ +from gettext import ngettext + +from ._compat import get_text_stderr +from .globals import resolve_color_default +from .utils import echo +from .utils import format_filename + +if t.TYPE_CHECKING: + from .core import Command + from .core import Context + from .core import Parameter + + +def _join_param_hints(param_hint: cabc.Sequence[str] | str | None) -> str | None: + if param_hint is not None and not isinstance(param_hint, str): + return " / ".join(repr(x) for x in param_hint) + + return param_hint + + +class ClickException(Exception): + """An exception that Click can handle and show to the user.""" + + #: The exit code for this exception. + exit_code = 1 + + def __init__(self, message: str) -> None: + super().__init__(message) + # The context will be removed by the time we print the message, so cache + # the color settings here to be used later on (in `show`) + self.show_color: bool | None = resolve_color_default() + self.message = message + + def format_message(self) -> str: + return self.message + + def __str__(self) -> str: + return self.message + + def show(self, file: t.IO[t.Any] | None = None) -> None: + if file is None: + file = get_text_stderr() + + echo( + _("Error: {message}").format(message=self.format_message()), + file=file, + color=self.show_color, + ) + + +class UsageError(ClickException): + """An internal exception that signals a usage error. This typically + aborts any further handling. + + :param message: the error message to display. + :param ctx: optionally the context that caused this error. Click will + fill in the context automatically in some situations. + """ + + exit_code = 2 + + def __init__(self, message: str, ctx: Context | None = None) -> None: + super().__init__(message) + self.ctx = ctx + self.cmd: Command | None = self.ctx.command if self.ctx else None + + def show(self, file: t.IO[t.Any] | None = None) -> None: + if file is None: + file = get_text_stderr() + color = None + hint = "" + if ( + self.ctx is not None + and self.ctx.command.get_help_option(self.ctx) is not None + ): + hint = _("Try '{command} {option}' for help.").format( + command=self.ctx.command_path, option=self.ctx.help_option_names[0] + ) + hint = f"{hint}\n" + if self.ctx is not None: + color = self.ctx.color + echo(f"{self.ctx.get_usage()}\n{hint}", file=file, color=color) + echo( + _("Error: {message}").format(message=self.format_message()), + file=file, + color=color, + ) + + +class BadParameter(UsageError): + """An exception that formats out a standardized error message for a + bad parameter. This is useful when thrown from a callback or type as + Click will attach contextual information to it (for instance, which + parameter it is). + + .. versionadded:: 2.0 + + :param param: the parameter object that caused this error. This can + be left out, and Click will attach this info itself + if possible. + :param param_hint: a string that shows up as parameter name. This + can be used as alternative to `param` in cases + where custom validation should happen. If it is + a string it's used as such, if it's a list then + each item is quoted and separated. + """ + + def __init__( + self, + message: str, + ctx: Context | None = None, + param: Parameter | None = None, + param_hint: str | None = None, + ) -> None: + super().__init__(message, ctx) + self.param = param + self.param_hint = param_hint + + def format_message(self) -> str: + if self.param_hint is not None: + param_hint = self.param_hint + elif self.param is not None: + param_hint = self.param.get_error_hint(self.ctx) # type: ignore + else: + return _("Invalid value: {message}").format(message=self.message) + + return _("Invalid value for {param_hint}: {message}").format( + param_hint=_join_param_hints(param_hint), message=self.message + ) + + +class MissingParameter(BadParameter): + """Raised if click required an option or argument but it was not + provided when invoking the script. + + .. versionadded:: 4.0 + + :param param_type: a string that indicates the type of the parameter. + The default is to inherit the parameter type from + the given `param`. Valid values are ``'parameter'``, + ``'option'`` or ``'argument'``. + """ + + def __init__( + self, + message: str | None = None, + ctx: Context | None = None, + param: Parameter | None = None, + param_hint: str | None = None, + param_type: str | None = None, + ) -> None: + super().__init__(message or "", ctx, param, param_hint) + self.param_type = param_type + + def format_message(self) -> str: + if self.param_hint is not None: + param_hint: str | None = self.param_hint + elif self.param is not None: + param_hint = self.param.get_error_hint(self.ctx) # type: ignore + else: + param_hint = None + + param_hint = _join_param_hints(param_hint) + param_hint = f" {param_hint}" if param_hint else "" + + param_type = self.param_type + if param_type is None and self.param is not None: + param_type = self.param.param_type_name + + msg = self.message + if self.param is not None: + msg_extra = self.param.type.get_missing_message( + param=self.param, ctx=self.ctx + ) + if msg_extra: + if msg: + msg += f". {msg_extra}" + else: + msg = msg_extra + + msg = f" {msg}" if msg else "" + + # Translate param_type for known types. + if param_type == "argument": + missing = _("Missing argument") + elif param_type == "option": + missing = _("Missing option") + elif param_type == "parameter": + missing = _("Missing parameter") + else: + missing = _("Missing {param_type}").format(param_type=param_type) + + return f"{missing}{param_hint}.{msg}" + + def __str__(self) -> str: + if not self.message: + param_name = self.param.name if self.param else None + return _("Missing parameter: {param_name}").format(param_name=param_name) + else: + return self.message + + +class NoSuchOption(UsageError): + """Raised if click attempted to handle an option that does not + exist. + + .. versionadded:: 4.0 + """ + + def __init__( + self, + option_name: str, + message: str | None = None, + possibilities: cabc.Sequence[str] | None = None, + ctx: Context | None = None, + ) -> None: + if message is None: + message = _("No such option: {name}").format(name=option_name) + + super().__init__(message, ctx) + self.option_name = option_name + self.possibilities = possibilities + + def format_message(self) -> str: + if not self.possibilities: + return self.message + + possibility_str = ", ".join(sorted(self.possibilities)) + suggest = ngettext( + "Did you mean {possibility}?", + "(Possible options: {possibilities})", + len(self.possibilities), + ).format(possibility=possibility_str, possibilities=possibility_str) + return f"{self.message} {suggest}" + + +class BadOptionUsage(UsageError): + """Raised if an option is generally supplied but the use of the option + was incorrect. This is for instance raised if the number of arguments + for an option is not correct. + + .. versionadded:: 4.0 + + :param option_name: the name of the option being used incorrectly. + """ + + def __init__( + self, option_name: str, message: str, ctx: Context | None = None + ) -> None: + super().__init__(message, ctx) + self.option_name = option_name + + +class BadArgumentUsage(UsageError): + """Raised if an argument is generally supplied but the use of the argument + was incorrect. This is for instance raised if the number of values + for an argument is not correct. + + .. versionadded:: 6.0 + """ + + +class NoArgsIsHelpError(UsageError): + def __init__(self, ctx: Context) -> None: + self.ctx: Context + super().__init__(ctx.get_help(), ctx=ctx) + + def show(self, file: t.IO[t.Any] | None = None) -> None: + echo(self.format_message(), file=file, err=True, color=self.ctx.color) + + +class FileError(ClickException): + """Raised if a file cannot be opened.""" + + def __init__(self, filename: str, hint: str | None = None) -> None: + if hint is None: + hint = _("unknown error") + + super().__init__(hint) + self.ui_filename: str = format_filename(filename) + self.filename = filename + + def format_message(self) -> str: + return _("Could not open file {filename!r}: {message}").format( + filename=self.ui_filename, message=self.message + ) + + +class Abort(RuntimeError): + """An internal signalling exception that signals Click to abort.""" + + +class Exit(RuntimeError): + """An exception that indicates that the application should exit with some + status code. + + :param code: the status code to exit with. + """ + + __slots__ = ("exit_code",) + + def __init__(self, code: int = 0) -> None: + self.exit_code: int = code diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/shell_completion.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/shell_completion.py new file mode 100644 index 0000000000000000000000000000000000000000..6c39d5eb3889000b499d37262cc5f7de8b7a443e --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/shell_completion.py @@ -0,0 +1,644 @@ +from __future__ import annotations + +import collections.abc as cabc +import os +import re +import typing as t +from gettext import gettext as _ + +from .core import Argument +from .core import Command +from .core import Context +from .core import Group +from .core import Option +from .core import Parameter +from .core import ParameterSource +from .utils import echo + + +def shell_complete( + cli: Command, + ctx_args: cabc.MutableMapping[str, t.Any], + prog_name: str, + complete_var: str, + instruction: str, +) -> int: + """Perform shell completion for the given CLI program. + + :param cli: Command being called. + :param ctx_args: Extra arguments to pass to + ``cli.make_context``. + :param prog_name: Name of the executable in the shell. + :param complete_var: Name of the environment variable that holds + the completion instruction. + :param instruction: Value of ``complete_var`` with the completion + instruction and shell, in the form ``instruction_shell``. + :return: Status code to exit with. + """ + shell, _, instruction = instruction.partition("_") + comp_cls = get_completion_class(shell) + + if comp_cls is None: + return 1 + + comp = comp_cls(cli, ctx_args, prog_name, complete_var) + + if instruction == "source": + echo(comp.source()) + return 0 + + if instruction == "complete": + echo(comp.complete()) + return 0 + + return 1 + + +class CompletionItem: + """Represents a completion value and metadata about the value. The + default metadata is ``type`` to indicate special shell handling, + and ``help`` if a shell supports showing a help string next to the + value. + + Arbitrary parameters can be passed when creating the object, and + accessed using ``item.attr``. If an attribute wasn't passed, + accessing it returns ``None``. + + :param value: The completion suggestion. + :param type: Tells the shell script to provide special completion + support for the type. Click uses ``"dir"`` and ``"file"``. + :param help: String shown next to the value if supported. + :param kwargs: Arbitrary metadata. The built-in implementations + don't use this, but custom type completions paired with custom + shell support could use it. + """ + + __slots__ = ("value", "type", "help", "_info") + + def __init__( + self, + value: t.Any, + type: str = "plain", + help: str | None = None, + **kwargs: t.Any, + ) -> None: + self.value: t.Any = value + self.type: str = type + self.help: str | None = help + self._info = kwargs + + def __getattr__(self, name: str) -> t.Any: + return self._info.get(name) + + +# Only Bash >= 4.4 has the nosort option. +_SOURCE_BASH = """\ +%(complete_func)s() { + local IFS=$'\\n' + local response + + response=$(env COMP_WORDS="${COMP_WORDS[*]}" COMP_CWORD=$COMP_CWORD \ +%(complete_var)s=bash_complete $1) + + for completion in $response; do + IFS=',' read type value <<< "$completion" + + if [[ $type == 'dir' ]]; then + COMPREPLY=() + compopt -o dirnames + elif [[ $type == 'file' ]]; then + COMPREPLY=() + compopt -o default + elif [[ $type == 'plain' ]]; then + COMPREPLY+=($value) + fi + done + + return 0 +} + +%(complete_func)s_setup() { + complete -o nosort -F %(complete_func)s %(prog_name)s +} + +%(complete_func)s_setup; +""" + +_SOURCE_ZSH = """\ +#compdef %(prog_name)s + +%(complete_func)s() { + local -a completions + local -a completions_with_descriptions + local -a response + (( ! $+commands[%(prog_name)s] )) && return 1 + + response=("${(@f)$(env COMP_WORDS="${words[*]}" COMP_CWORD=$((CURRENT-1)) \ +%(complete_var)s=zsh_complete %(prog_name)s)}") + + for type key descr in ${response}; do + if [[ "$type" == "plain" ]]; then + if [[ "$descr" == "_" ]]; then + completions+=("$key") + else + completions_with_descriptions+=("$key":"$descr") + fi + elif [[ "$type" == "dir" ]]; then + _path_files -/ + elif [[ "$type" == "file" ]]; then + _path_files -f + fi + done + + if [ -n "$completions_with_descriptions" ]; then + _describe -V unsorted completions_with_descriptions -U + fi + + if [ -n "$completions" ]; then + compadd -U -V unsorted -a completions + fi +} + +if [[ $zsh_eval_context[-1] == loadautofunc ]]; then + # autoload from fpath, call function directly + %(complete_func)s "$@" +else + # eval/source/. command, register function for later + compdef %(complete_func)s %(prog_name)s +fi +""" + +_SOURCE_FISH = """\ +function %(complete_func)s; + set -l response (env %(complete_var)s=fish_complete COMP_WORDS=(commandline -cp) \ +COMP_CWORD=(commandline -t) %(prog_name)s); + + for completion in $response; + set -l metadata (string split "," $completion); + + if test $metadata[1] = "dir"; + __fish_complete_directories $metadata[2]; + else if test $metadata[1] = "file"; + __fish_complete_path $metadata[2]; + else if test $metadata[1] = "plain"; + echo $metadata[2]; + end; + end; +end; + +complete --no-files --command %(prog_name)s --arguments \ +"(%(complete_func)s)"; +""" + + +class ShellComplete: + """Base class for providing shell completion support. A subclass for + a given shell will override attributes and methods to implement the + completion instructions (``source`` and ``complete``). + + :param cli: Command being called. + :param prog_name: Name of the executable in the shell. + :param complete_var: Name of the environment variable that holds + the completion instruction. + + .. versionadded:: 8.0 + """ + + name: t.ClassVar[str] + """Name to register the shell as with :func:`add_completion_class`. + This is used in completion instructions (``{name}_source`` and + ``{name}_complete``). + """ + + source_template: t.ClassVar[str] + """Completion script template formatted by :meth:`source`. This must + be provided by subclasses. + """ + + def __init__( + self, + cli: Command, + ctx_args: cabc.MutableMapping[str, t.Any], + prog_name: str, + complete_var: str, + ) -> None: + self.cli = cli + self.ctx_args = ctx_args + self.prog_name = prog_name + self.complete_var = complete_var + + @property + def func_name(self) -> str: + """The name of the shell function defined by the completion + script. + """ + safe_name = re.sub(r"\W*", "", self.prog_name.replace("-", "_"), flags=re.ASCII) + return f"_{safe_name}_completion" + + def source_vars(self) -> dict[str, t.Any]: + """Vars for formatting :attr:`source_template`. + + By default this provides ``complete_func``, ``complete_var``, + and ``prog_name``. + """ + return { + "complete_func": self.func_name, + "complete_var": self.complete_var, + "prog_name": self.prog_name, + } + + def source(self) -> str: + """Produce the shell script that defines the completion + function. By default this ``%``-style formats + :attr:`source_template` with the dict returned by + :meth:`source_vars`. + """ + return self.source_template % self.source_vars() + + def get_completion_args(self) -> tuple[list[str], str]: + """Use the env vars defined by the shell script to return a + tuple of ``args, incomplete``. This must be implemented by + subclasses. + """ + raise NotImplementedError + + def get_completions(self, args: list[str], incomplete: str) -> list[CompletionItem]: + """Determine the context and last complete command or parameter + from the complete args. Call that object's ``shell_complete`` + method to get the completions for the incomplete value. + + :param args: List of complete args before the incomplete value. + :param incomplete: Value being completed. May be empty. + """ + ctx = _resolve_context(self.cli, self.ctx_args, self.prog_name, args) + obj, incomplete = _resolve_incomplete(ctx, args, incomplete) + return obj.shell_complete(ctx, incomplete) + + def format_completion(self, item: CompletionItem) -> str: + """Format a completion item into the form recognized by the + shell script. This must be implemented by subclasses. + + :param item: Completion item to format. + """ + raise NotImplementedError + + def complete(self) -> str: + """Produce the completion data to send back to the shell. + + By default this calls :meth:`get_completion_args`, gets the + completions, then calls :meth:`format_completion` for each + completion. + """ + args, incomplete = self.get_completion_args() + completions = self.get_completions(args, incomplete) + out = [self.format_completion(item) for item in completions] + return "\n".join(out) + + +class BashComplete(ShellComplete): + """Shell completion for Bash.""" + + name = "bash" + source_template = _SOURCE_BASH + + @staticmethod + def _check_version() -> None: + import shutil + import subprocess + + bash_exe = shutil.which("bash") + + if bash_exe is None: + match = None + else: + output = subprocess.run( + [bash_exe, "--norc", "-c", 'echo "${BASH_VERSION}"'], + stdout=subprocess.PIPE, + ) + match = re.search(r"^(\d+)\.(\d+)\.\d+", output.stdout.decode()) + + if match is not None: + major, minor = match.groups() + + if major < "4" or major == "4" and minor < "4": + echo( + _( + "Shell completion is not supported for Bash" + " versions older than 4.4." + ), + err=True, + ) + else: + echo( + _("Couldn't detect Bash version, shell completion is not supported."), + err=True, + ) + + def source(self) -> str: + self._check_version() + return super().source() + + def get_completion_args(self) -> tuple[list[str], str]: + cwords = split_arg_string(os.environ["COMP_WORDS"]) + cword = int(os.environ["COMP_CWORD"]) + args = cwords[1:cword] + + try: + incomplete = cwords[cword] + except IndexError: + incomplete = "" + + return args, incomplete + + def format_completion(self, item: CompletionItem) -> str: + return f"{item.type},{item.value}" + + +class ZshComplete(ShellComplete): + """Shell completion for Zsh.""" + + name = "zsh" + source_template = _SOURCE_ZSH + + def get_completion_args(self) -> tuple[list[str], str]: + cwords = split_arg_string(os.environ["COMP_WORDS"]) + cword = int(os.environ["COMP_CWORD"]) + args = cwords[1:cword] + + try: + incomplete = cwords[cword] + except IndexError: + incomplete = "" + + return args, incomplete + + def format_completion(self, item: CompletionItem) -> str: + return f"{item.type}\n{item.value}\n{item.help if item.help else '_'}" + + +class FishComplete(ShellComplete): + """Shell completion for Fish.""" + + name = "fish" + source_template = _SOURCE_FISH + + def get_completion_args(self) -> tuple[list[str], str]: + cwords = split_arg_string(os.environ["COMP_WORDS"]) + incomplete = os.environ["COMP_CWORD"] + args = cwords[1:] + + # Fish stores the partial word in both COMP_WORDS and + # COMP_CWORD, remove it from complete args. + if incomplete and args and args[-1] == incomplete: + args.pop() + + return args, incomplete + + def format_completion(self, item: CompletionItem) -> str: + if item.help: + return f"{item.type},{item.value}\t{item.help}" + + return f"{item.type},{item.value}" + + +ShellCompleteType = t.TypeVar("ShellCompleteType", bound="type[ShellComplete]") + + +_available_shells: dict[str, type[ShellComplete]] = { + "bash": BashComplete, + "fish": FishComplete, + "zsh": ZshComplete, +} + + +def add_completion_class( + cls: ShellCompleteType, name: str | None = None +) -> ShellCompleteType: + """Register a :class:`ShellComplete` subclass under the given name. + The name will be provided by the completion instruction environment + variable during completion. + + :param cls: The completion class that will handle completion for the + shell. + :param name: Name to register the class under. Defaults to the + class's ``name`` attribute. + """ + if name is None: + name = cls.name + + _available_shells[name] = cls + + return cls + + +def get_completion_class(shell: str) -> type[ShellComplete] | None: + """Look up a registered :class:`ShellComplete` subclass by the name + provided by the completion instruction environment variable. If the + name isn't registered, returns ``None``. + + :param shell: Name the class is registered under. + """ + return _available_shells.get(shell) + + +def split_arg_string(string: str) -> list[str]: + """Split an argument string as with :func:`shlex.split`, but don't + fail if the string is incomplete. Ignores a missing closing quote or + incomplete escape sequence and uses the partial token as-is. + + .. code-block:: python + + split_arg_string("example 'my file") + ["example", "my file"] + + split_arg_string("example my\\") + ["example", "my"] + + :param string: String to split. + + .. versionchanged:: 8.2 + Moved to ``shell_completion`` from ``parser``. + """ + import shlex + + lex = shlex.shlex(string, posix=True) + lex.whitespace_split = True + lex.commenters = "" + out = [] + + try: + for token in lex: + out.append(token) + except ValueError: + # Raised when end-of-string is reached in an invalid state. Use + # the partial token as-is. The quote or escape character is in + # lex.state, not lex.token. + out.append(lex.token) + + return out + + +def _is_incomplete_argument(ctx: Context, param: Parameter) -> bool: + """Determine if the given parameter is an argument that can still + accept values. + + :param ctx: Invocation context for the command represented by the + parsed complete args. + :param param: Argument object being checked. + """ + if not isinstance(param, Argument): + return False + + assert param.name is not None + # Will be None if expose_value is False. + value = ctx.params.get(param.name) + return ( + param.nargs == -1 + or ctx.get_parameter_source(param.name) is not ParameterSource.COMMANDLINE + or ( + param.nargs > 1 + and isinstance(value, (tuple, list)) + and len(value) < param.nargs + ) + ) + + +def _start_of_option(ctx: Context, value: str) -> bool: + """Check if the value looks like the start of an option.""" + if not value: + return False + + c = value[0] + return c in ctx._opt_prefixes + + +def _is_incomplete_option(ctx: Context, args: list[str], param: Parameter) -> bool: + """Determine if the given parameter is an option that needs a value. + + :param args: List of complete args before the incomplete value. + :param param: Option object being checked. + """ + if not isinstance(param, Option): + return False + + if param.is_flag or param.count: + return False + + last_option = None + + for index, arg in enumerate(reversed(args)): + if index + 1 > param.nargs: + break + + if _start_of_option(ctx, arg): + last_option = arg + + return last_option is not None and last_option in param.opts + + +def _resolve_context( + cli: Command, + ctx_args: cabc.MutableMapping[str, t.Any], + prog_name: str, + args: list[str], +) -> Context: + """Produce the context hierarchy starting with the command and + traversing the complete arguments. This only follows the commands, + it doesn't trigger input prompts or callbacks. + + :param cli: Command being called. + :param prog_name: Name of the executable in the shell. + :param args: List of complete args before the incomplete value. + """ + ctx_args["resilient_parsing"] = True + with cli.make_context(prog_name, args.copy(), **ctx_args) as ctx: + args = ctx._protected_args + ctx.args + + while args: + command = ctx.command + + if isinstance(command, Group): + if not command.chain: + name, cmd, args = command.resolve_command(ctx, args) + + if cmd is None: + return ctx + + with cmd.make_context( + name, args, parent=ctx, resilient_parsing=True + ) as sub_ctx: + ctx = sub_ctx + args = ctx._protected_args + ctx.args + else: + sub_ctx = ctx + + while args: + name, cmd, args = command.resolve_command(ctx, args) + + if cmd is None: + return ctx + + with cmd.make_context( + name, + args, + parent=ctx, + allow_extra_args=True, + allow_interspersed_args=False, + resilient_parsing=True, + ) as sub_sub_ctx: + sub_ctx = sub_sub_ctx + args = sub_ctx.args + + ctx = sub_ctx + args = [*sub_ctx._protected_args, *sub_ctx.args] + else: + break + + return ctx + + +def _resolve_incomplete( + ctx: Context, args: list[str], incomplete: str +) -> tuple[Command | Parameter, str]: + """Find the Click object that will handle the completion of the + incomplete value. Return the object and the incomplete value. + + :param ctx: Invocation context for the command represented by + the parsed complete args. + :param args: List of complete args before the incomplete value. + :param incomplete: Value being completed. May be empty. + """ + # Different shells treat an "=" between a long option name and + # value differently. Might keep the value joined, return the "=" + # as a separate item, or return the split name and value. Always + # split and discard the "=" to make completion easier. + if incomplete == "=": + incomplete = "" + elif "=" in incomplete and _start_of_option(ctx, incomplete): + name, _, incomplete = incomplete.partition("=") + args.append(name) + + # The "--" marker tells Click to stop treating values as options + # even if they start with the option character. If it hasn't been + # given and the incomplete arg looks like an option, the current + # command will provide option name completions. + if "--" not in args and _start_of_option(ctx, incomplete): + return ctx.command, incomplete + + params = ctx.command.get_params(ctx) + + # If the last complete arg is an option name with an incomplete + # value, the option will provide value completions. + for param in params: + if _is_incomplete_option(ctx, args, param): + return param, incomplete + + # It's not an option name or value. The first argument without a + # parsed value will provide value completions. + for param in params: + if _is_incomplete_argument(ctx, param): + return param, incomplete + + # There were no unparsed arguments, the command may be a group that + # will provide command name completions. + return ctx.command, incomplete diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/types.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/types.py new file mode 100644 index 0000000000000000000000000000000000000000..684cb3b1e6107bada194d18968de69a7f383a2a0 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/click/types.py @@ -0,0 +1,1165 @@ +from __future__ import annotations + +import collections.abc as cabc +import enum +import os +import stat +import sys +import typing as t +from datetime import datetime +from gettext import gettext as _ +from gettext import ngettext + +from ._compat import _get_argv_encoding +from ._compat import open_stream +from .exceptions import BadParameter +from .utils import format_filename +from .utils import LazyFile +from .utils import safecall + +if t.TYPE_CHECKING: + import typing_extensions as te + + from .core import Context + from .core import Parameter + from .shell_completion import CompletionItem + +ParamTypeValue = t.TypeVar("ParamTypeValue") + + +class ParamType: + """Represents the type of a parameter. Validates and converts values + from the command line or Python into the correct type. + + To implement a custom type, subclass and implement at least the + following: + + - The :attr:`name` class attribute must be set. + - Calling an instance of the type with ``None`` must return + ``None``. This is already implemented by default. + - :meth:`convert` must convert string values to the correct type. + - :meth:`convert` must accept values that are already the correct + type. + - It must be able to convert a value if the ``ctx`` and ``param`` + arguments are ``None``. This can occur when converting prompt + input. + """ + + is_composite: t.ClassVar[bool] = False + arity: t.ClassVar[int] = 1 + + #: the descriptive name of this type + name: str + + #: if a list of this type is expected and the value is pulled from a + #: string environment variable, this is what splits it up. `None` + #: means any whitespace. For all parameters the general rule is that + #: whitespace splits them up. The exception are paths and files which + #: are split by ``os.path.pathsep`` by default (":" on Unix and ";" on + #: Windows). + envvar_list_splitter: t.ClassVar[str | None] = None + + def to_info_dict(self) -> dict[str, t.Any]: + """Gather information that could be useful for a tool generating + user-facing documentation. + + Use :meth:`click.Context.to_info_dict` to traverse the entire + CLI structure. + + .. versionadded:: 8.0 + """ + # The class name without the "ParamType" suffix. + param_type = type(self).__name__.partition("ParamType")[0] + param_type = param_type.partition("ParameterType")[0] + + # Custom subclasses might not remember to set a name. + if hasattr(self, "name"): + name = self.name + else: + name = param_type + + return {"param_type": param_type, "name": name} + + def __call__( + self, + value: t.Any, + param: Parameter | None = None, + ctx: Context | None = None, + ) -> t.Any: + if value is not None: + return self.convert(value, param, ctx) + + def get_metavar(self, param: Parameter, ctx: Context) -> str | None: + """Returns the metavar default for this param if it provides one.""" + + def get_missing_message(self, param: Parameter, ctx: Context | None) -> str | None: + """Optionally might return extra information about a missing + parameter. + + .. versionadded:: 2.0 + """ + + def convert( + self, value: t.Any, param: Parameter | None, ctx: Context | None + ) -> t.Any: + """Convert the value to the correct type. This is not called if + the value is ``None`` (the missing value). + + This must accept string values from the command line, as well as + values that are already the correct type. It may also convert + other compatible types. + + The ``param`` and ``ctx`` arguments may be ``None`` in certain + situations, such as when converting prompt input. + + If the value cannot be converted, call :meth:`fail` with a + descriptive message. + + :param value: The value to convert. + :param param: The parameter that is using this type to convert + its value. May be ``None``. + :param ctx: The current context that arrived at this value. May + be ``None``. + """ + return value + + def split_envvar_value(self, rv: str) -> cabc.Sequence[str]: + """Given a value from an environment variable this splits it up + into small chunks depending on the defined envvar list splitter. + + If the splitter is set to `None`, which means that whitespace splits, + then leading and trailing whitespace is ignored. Otherwise, leading + and trailing splitters usually lead to empty items being included. + """ + return (rv or "").split(self.envvar_list_splitter) + + def fail( + self, + message: str, + param: Parameter | None = None, + ctx: Context | None = None, + ) -> t.NoReturn: + """Helper method to fail with an invalid value message.""" + raise BadParameter(message, ctx=ctx, param=param) + + def shell_complete( + self, ctx: Context, param: Parameter, incomplete: str + ) -> list[CompletionItem]: + """Return a list of + :class:`~click.shell_completion.CompletionItem` objects for the + incomplete value. Most types do not provide completions, but + some do, and this allows custom types to provide custom + completions as well. + + :param ctx: Invocation context for this command. + :param param: The parameter that is requesting completion. + :param incomplete: Value being completed. May be empty. + + .. versionadded:: 8.0 + """ + return [] + + +class CompositeParamType(ParamType): + is_composite = True + + @property + def arity(self) -> int: # type: ignore + raise NotImplementedError() + + +class FuncParamType(ParamType): + def __init__(self, func: t.Callable[[t.Any], t.Any]) -> None: + self.name: str = func.__name__ + self.func = func + + def to_info_dict(self) -> dict[str, t.Any]: + info_dict = super().to_info_dict() + info_dict["func"] = self.func + return info_dict + + def convert( + self, value: t.Any, param: Parameter | None, ctx: Context | None + ) -> t.Any: + try: + return self.func(value) + except ValueError: + try: + value = str(value) + except UnicodeError: + value = value.decode("utf-8", "replace") + + self.fail(value, param, ctx) + + +class UnprocessedParamType(ParamType): + name = "text" + + def convert( + self, value: t.Any, param: Parameter | None, ctx: Context | None + ) -> t.Any: + return value + + def __repr__(self) -> str: + return "UNPROCESSED" + + +class StringParamType(ParamType): + name = "text" + + def convert( + self, value: t.Any, param: Parameter | None, ctx: Context | None + ) -> t.Any: + if isinstance(value, bytes): + enc = _get_argv_encoding() + try: + value = value.decode(enc) + except UnicodeError: + fs_enc = sys.getfilesystemencoding() + if fs_enc != enc: + try: + value = value.decode(fs_enc) + except UnicodeError: + value = value.decode("utf-8", "replace") + else: + value = value.decode("utf-8", "replace") + return value + return str(value) + + def __repr__(self) -> str: + return "STRING" + + +class Choice(ParamType, t.Generic[ParamTypeValue]): + """The choice type allows a value to be checked against a fixed set + of supported values. + + You may pass any iterable value which will be converted to a tuple + and thus will only be iterated once. + + The resulting value will always be one of the originally passed choices. + See :meth:`normalize_choice` for more info on the mapping of strings + to choices. See :ref:`choice-opts` for an example. + + :param case_sensitive: Set to false to make choices case + insensitive. Defaults to true. + + .. versionchanged:: 8.2.0 + Non-``str`` ``choices`` are now supported. It can additionally be any + iterable. Before you were not recommended to pass anything but a list or + tuple. + + .. versionadded:: 8.2.0 + Choice normalization can be overridden via :meth:`normalize_choice`. + """ + + name = "choice" + + def __init__( + self, choices: cabc.Iterable[ParamTypeValue], case_sensitive: bool = True + ) -> None: + self.choices: cabc.Sequence[ParamTypeValue] = tuple(choices) + self.case_sensitive = case_sensitive + + def to_info_dict(self) -> dict[str, t.Any]: + info_dict = super().to_info_dict() + info_dict["choices"] = self.choices + info_dict["case_sensitive"] = self.case_sensitive + return info_dict + + def _normalized_mapping( + self, ctx: Context | None = None + ) -> cabc.Mapping[ParamTypeValue, str]: + """ + Returns mapping where keys are the original choices and the values are + the normalized values that are accepted via the command line. + + This is a simple wrapper around :meth:`normalize_choice`, use that + instead which is supported. + """ + return { + choice: self.normalize_choice( + choice=choice, + ctx=ctx, + ) + for choice in self.choices + } + + def normalize_choice(self, choice: ParamTypeValue, ctx: Context | None) -> str: + """ + Normalize a choice value, used to map a passed string to a choice. + Each choice must have a unique normalized value. + + By default uses :meth:`Context.token_normalize_func` and if not case + sensitive, convert it to a casefolded value. + + .. versionadded:: 8.2.0 + """ + normed_value = choice.name if isinstance(choice, enum.Enum) else str(choice) + + if ctx is not None and ctx.token_normalize_func is not None: + normed_value = ctx.token_normalize_func(normed_value) + + if not self.case_sensitive: + normed_value = normed_value.casefold() + + return normed_value + + def get_metavar(self, param: Parameter, ctx: Context) -> str | None: + if param.param_type_name == "option" and not param.show_choices: # type: ignore + choice_metavars = [ + convert_type(type(choice)).name.upper() for choice in self.choices + ] + choices_str = "|".join([*dict.fromkeys(choice_metavars)]) + else: + choices_str = "|".join( + [str(i) for i in self._normalized_mapping(ctx=ctx).values()] + ) + + # Use curly braces to indicate a required argument. + if param.required and param.param_type_name == "argument": + return f"{{{choices_str}}}" + + # Use square braces to indicate an option or optional argument. + return f"[{choices_str}]" + + def get_missing_message(self, param: Parameter, ctx: Context | None) -> str: + """ + Message shown when no choice is passed. + + .. versionchanged:: 8.2.0 Added ``ctx`` argument. + """ + return _("Choose from:\n\t{choices}").format( + choices=",\n\t".join(self._normalized_mapping(ctx=ctx).values()) + ) + + def convert( + self, value: t.Any, param: Parameter | None, ctx: Context | None + ) -> ParamTypeValue: + """ + For a given value from the parser, normalize it and find its + matching normalized value in the list of choices. Then return the + matched "original" choice. + """ + normed_value = self.normalize_choice(choice=value, ctx=ctx) + normalized_mapping = self._normalized_mapping(ctx=ctx) + + try: + return next( + original + for original, normalized in normalized_mapping.items() + if normalized == normed_value + ) + except StopIteration: + self.fail( + self.get_invalid_choice_message(value=value, ctx=ctx), + param=param, + ctx=ctx, + ) + + def get_invalid_choice_message(self, value: t.Any, ctx: Context | None) -> str: + """Get the error message when the given choice is invalid. + + :param value: The invalid value. + + .. versionadded:: 8.2 + """ + choices_str = ", ".join(map(repr, self._normalized_mapping(ctx=ctx).values())) + return ngettext( + "{value!r} is not {choice}.", + "{value!r} is not one of {choices}.", + len(self.choices), + ).format(value=value, choice=choices_str, choices=choices_str) + + def __repr__(self) -> str: + return f"Choice({list(self.choices)})" + + def shell_complete( + self, ctx: Context, param: Parameter, incomplete: str + ) -> list[CompletionItem]: + """Complete choices that start with the incomplete value. + + :param ctx: Invocation context for this command. + :param param: The parameter that is requesting completion. + :param incomplete: Value being completed. May be empty. + + .. versionadded:: 8.0 + """ + from click.shell_completion import CompletionItem + + str_choices = map(str, self.choices) + + if self.case_sensitive: + matched = (c for c in str_choices if c.startswith(incomplete)) + else: + incomplete = incomplete.lower() + matched = (c for c in str_choices if c.lower().startswith(incomplete)) + + return [CompletionItem(c) for c in matched] + + +class DateTime(ParamType): + """The DateTime type converts date strings into `datetime` objects. + + The format strings which are checked are configurable, but default to some + common (non-timezone aware) ISO 8601 formats. + + When specifying *DateTime* formats, you should only pass a list or a tuple. + Other iterables, like generators, may lead to surprising results. + + The format strings are processed using ``datetime.strptime``, and this + consequently defines the format strings which are allowed. + + Parsing is tried using each format, in order, and the first format which + parses successfully is used. + + :param formats: A list or tuple of date format strings, in the order in + which they should be tried. Defaults to + ``'%Y-%m-%d'``, ``'%Y-%m-%dT%H:%M:%S'``, + ``'%Y-%m-%d %H:%M:%S'``. + """ + + name = "datetime" + + def __init__(self, formats: cabc.Sequence[str] | None = None): + self.formats: cabc.Sequence[str] = formats or [ + "%Y-%m-%d", + "%Y-%m-%dT%H:%M:%S", + "%Y-%m-%d %H:%M:%S", + ] + + def to_info_dict(self) -> dict[str, t.Any]: + info_dict = super().to_info_dict() + info_dict["formats"] = self.formats + return info_dict + + def get_metavar(self, param: Parameter, ctx: Context) -> str | None: + return f"[{'|'.join(self.formats)}]" + + def _try_to_convert_date(self, value: t.Any, format: str) -> datetime | None: + try: + return datetime.strptime(value, format) + except ValueError: + return None + + def convert( + self, value: t.Any, param: Parameter | None, ctx: Context | None + ) -> t.Any: + if isinstance(value, datetime): + return value + + for format in self.formats: + converted = self._try_to_convert_date(value, format) + + if converted is not None: + return converted + + formats_str = ", ".join(map(repr, self.formats)) + self.fail( + ngettext( + "{value!r} does not match the format {format}.", + "{value!r} does not match the formats {formats}.", + len(self.formats), + ).format(value=value, format=formats_str, formats=formats_str), + param, + ctx, + ) + + def __repr__(self) -> str: + return "DateTime" + + +class _NumberParamTypeBase(ParamType): + _number_class: t.ClassVar[type[t.Any]] + + def convert( + self, value: t.Any, param: Parameter | None, ctx: Context | None + ) -> t.Any: + try: + return self._number_class(value) + except ValueError: + self.fail( + _("{value!r} is not a valid {number_type}.").format( + value=value, number_type=self.name + ), + param, + ctx, + ) + + +class _NumberRangeBase(_NumberParamTypeBase): + def __init__( + self, + min: float | None = None, + max: float | None = None, + min_open: bool = False, + max_open: bool = False, + clamp: bool = False, + ) -> None: + self.min = min + self.max = max + self.min_open = min_open + self.max_open = max_open + self.clamp = clamp + + def to_info_dict(self) -> dict[str, t.Any]: + info_dict = super().to_info_dict() + info_dict.update( + min=self.min, + max=self.max, + min_open=self.min_open, + max_open=self.max_open, + clamp=self.clamp, + ) + return info_dict + + def convert( + self, value: t.Any, param: Parameter | None, ctx: Context | None + ) -> t.Any: + import operator + + rv = super().convert(value, param, ctx) + lt_min: bool = self.min is not None and ( + operator.le if self.min_open else operator.lt + )(rv, self.min) + gt_max: bool = self.max is not None and ( + operator.ge if self.max_open else operator.gt + )(rv, self.max) + + if self.clamp: + if lt_min: + return self._clamp(self.min, 1, self.min_open) # type: ignore + + if gt_max: + return self._clamp(self.max, -1, self.max_open) # type: ignore + + if lt_min or gt_max: + self.fail( + _("{value} is not in the range {range}.").format( + value=rv, range=self._describe_range() + ), + param, + ctx, + ) + + return rv + + def _clamp(self, bound: float, dir: t.Literal[1, -1], open: bool) -> float: + """Find the valid value to clamp to bound in the given + direction. + + :param bound: The boundary value. + :param dir: 1 or -1 indicating the direction to move. + :param open: If true, the range does not include the bound. + """ + raise NotImplementedError + + def _describe_range(self) -> str: + """Describe the range for use in help text.""" + if self.min is None: + op = "<" if self.max_open else "<=" + return f"x{op}{self.max}" + + if self.max is None: + op = ">" if self.min_open else ">=" + return f"x{op}{self.min}" + + lop = "<" if self.min_open else "<=" + rop = "<" if self.max_open else "<=" + return f"{self.min}{lop}x{rop}{self.max}" + + def __repr__(self) -> str: + clamp = " clamped" if self.clamp else "" + return f"<{type(self).__name__} {self._describe_range()}{clamp}>" + + +class IntParamType(_NumberParamTypeBase): + name = "integer" + _number_class = int + + def __repr__(self) -> str: + return "INT" + + +class IntRange(_NumberRangeBase, IntParamType): + """Restrict an :data:`click.INT` value to a range of accepted + values. See :ref:`ranges`. + + If ``min`` or ``max`` are not passed, any value is accepted in that + direction. If ``min_open`` or ``max_open`` are enabled, the + corresponding boundary is not included in the range. + + If ``clamp`` is enabled, a value outside the range is clamped to the + boundary instead of failing. + + .. versionchanged:: 8.0 + Added the ``min_open`` and ``max_open`` parameters. + """ + + name = "integer range" + + def _clamp( # type: ignore + self, bound: int, dir: t.Literal[1, -1], open: bool + ) -> int: + if not open: + return bound + + return bound + dir + + +class FloatParamType(_NumberParamTypeBase): + name = "float" + _number_class = float + + def __repr__(self) -> str: + return "FLOAT" + + +class FloatRange(_NumberRangeBase, FloatParamType): + """Restrict a :data:`click.FLOAT` value to a range of accepted + values. See :ref:`ranges`. + + If ``min`` or ``max`` are not passed, any value is accepted in that + direction. If ``min_open`` or ``max_open`` are enabled, the + corresponding boundary is not included in the range. + + If ``clamp`` is enabled, a value outside the range is clamped to the + boundary instead of failing. This is not supported if either + boundary is marked ``open``. + + .. versionchanged:: 8.0 + Added the ``min_open`` and ``max_open`` parameters. + """ + + name = "float range" + + def __init__( + self, + min: float | None = None, + max: float | None = None, + min_open: bool = False, + max_open: bool = False, + clamp: bool = False, + ) -> None: + super().__init__( + min=min, max=max, min_open=min_open, max_open=max_open, clamp=clamp + ) + + if (min_open or max_open) and clamp: + raise TypeError("Clamping is not supported for open bounds.") + + def _clamp(self, bound: float, dir: t.Literal[1, -1], open: bool) -> float: + if not open: + return bound + + # Could use math.nextafter here, but clamping an + # open float range doesn't seem to be particularly useful. It's + # left up to the user to write a callback to do it if needed. + raise RuntimeError("Clamping is not supported for open bounds.") + + +class BoolParamType(ParamType): + name = "boolean" + + def convert( + self, value: t.Any, param: Parameter | None, ctx: Context | None + ) -> t.Any: + if value in {False, True}: + return bool(value) + + norm = value.strip().lower() + + if norm in {"1", "true", "t", "yes", "y", "on"}: + return True + + if norm in {"0", "false", "f", "no", "n", "off"}: + return False + + self.fail( + _("{value!r} is not a valid boolean.").format(value=value), param, ctx + ) + + def __repr__(self) -> str: + return "BOOL" + + +class UUIDParameterType(ParamType): + name = "uuid" + + def convert( + self, value: t.Any, param: Parameter | None, ctx: Context | None + ) -> t.Any: + import uuid + + if isinstance(value, uuid.UUID): + return value + + value = value.strip() + + try: + return uuid.UUID(value) + except ValueError: + self.fail( + _("{value!r} is not a valid UUID.").format(value=value), param, ctx + ) + + def __repr__(self) -> str: + return "UUID" + + +class File(ParamType): + """Declares a parameter to be a file for reading or writing. The file + is automatically closed once the context tears down (after the command + finished working). + + Files can be opened for reading or writing. The special value ``-`` + indicates stdin or stdout depending on the mode. + + By default, the file is opened for reading text data, but it can also be + opened in binary mode or for writing. The encoding parameter can be used + to force a specific encoding. + + The `lazy` flag controls if the file should be opened immediately or upon + first IO. The default is to be non-lazy for standard input and output + streams as well as files opened for reading, `lazy` otherwise. When opening a + file lazily for reading, it is still opened temporarily for validation, but + will not be held open until first IO. lazy is mainly useful when opening + for writing to avoid creating the file until it is needed. + + Files can also be opened atomically in which case all writes go into a + separate file in the same folder and upon completion the file will + be moved over to the original location. This is useful if a file + regularly read by other users is modified. + + See :ref:`file-args` for more information. + + .. versionchanged:: 2.0 + Added the ``atomic`` parameter. + """ + + name = "filename" + envvar_list_splitter: t.ClassVar[str] = os.path.pathsep + + def __init__( + self, + mode: str = "r", + encoding: str | None = None, + errors: str | None = "strict", + lazy: bool | None = None, + atomic: bool = False, + ) -> None: + self.mode = mode + self.encoding = encoding + self.errors = errors + self.lazy = lazy + self.atomic = atomic + + def to_info_dict(self) -> dict[str, t.Any]: + info_dict = super().to_info_dict() + info_dict.update(mode=self.mode, encoding=self.encoding) + return info_dict + + def resolve_lazy_flag(self, value: str | os.PathLike[str]) -> bool: + if self.lazy is not None: + return self.lazy + if os.fspath(value) == "-": + return False + elif "w" in self.mode: + return True + return False + + def convert( + self, + value: str | os.PathLike[str] | t.IO[t.Any], + param: Parameter | None, + ctx: Context | None, + ) -> t.IO[t.Any]: + if _is_file_like(value): + return value + + value = t.cast("str | os.PathLike[str]", value) + + try: + lazy = self.resolve_lazy_flag(value) + + if lazy: + lf = LazyFile( + value, self.mode, self.encoding, self.errors, atomic=self.atomic + ) + + if ctx is not None: + ctx.call_on_close(lf.close_intelligently) + + return t.cast("t.IO[t.Any]", lf) + + f, should_close = open_stream( + value, self.mode, self.encoding, self.errors, atomic=self.atomic + ) + + # If a context is provided, we automatically close the file + # at the end of the context execution (or flush out). If a + # context does not exist, it's the caller's responsibility to + # properly close the file. This for instance happens when the + # type is used with prompts. + if ctx is not None: + if should_close: + ctx.call_on_close(safecall(f.close)) + else: + ctx.call_on_close(safecall(f.flush)) + + return f + except OSError as e: + self.fail(f"'{format_filename(value)}': {e.strerror}", param, ctx) + + def shell_complete( + self, ctx: Context, param: Parameter, incomplete: str + ) -> list[CompletionItem]: + """Return a special completion marker that tells the completion + system to use the shell to provide file path completions. + + :param ctx: Invocation context for this command. + :param param: The parameter that is requesting completion. + :param incomplete: Value being completed. May be empty. + + .. versionadded:: 8.0 + """ + from click.shell_completion import CompletionItem + + return [CompletionItem(incomplete, type="file")] + + +def _is_file_like(value: t.Any) -> te.TypeGuard[t.IO[t.Any]]: + return hasattr(value, "read") or hasattr(value, "write") + + +class Path(ParamType): + """The ``Path`` type is similar to the :class:`File` type, but + returns the filename instead of an open file. Various checks can be + enabled to validate the type of file and permissions. + + :param exists: The file or directory needs to exist for the value to + be valid. If this is not set to ``True``, and the file does not + exist, then all further checks are silently skipped. + :param file_okay: Allow a file as a value. + :param dir_okay: Allow a directory as a value. + :param readable: if true, a readable check is performed. + :param writable: if true, a writable check is performed. + :param executable: if true, an executable check is performed. + :param resolve_path: Make the value absolute and resolve any + symlinks. A ``~`` is not expanded, as this is supposed to be + done by the shell only. + :param allow_dash: Allow a single dash as a value, which indicates + a standard stream (but does not open it). Use + :func:`~click.open_file` to handle opening this value. + :param path_type: Convert the incoming path value to this type. If + ``None``, keep Python's default, which is ``str``. Useful to + convert to :class:`pathlib.Path`. + + .. versionchanged:: 8.1 + Added the ``executable`` parameter. + + .. versionchanged:: 8.0 + Allow passing ``path_type=pathlib.Path``. + + .. versionchanged:: 6.0 + Added the ``allow_dash`` parameter. + """ + + envvar_list_splitter: t.ClassVar[str] = os.path.pathsep + + def __init__( + self, + exists: bool = False, + file_okay: bool = True, + dir_okay: bool = True, + writable: bool = False, + readable: bool = True, + resolve_path: bool = False, + allow_dash: bool = False, + path_type: type[t.Any] | None = None, + executable: bool = False, + ): + self.exists = exists + self.file_okay = file_okay + self.dir_okay = dir_okay + self.readable = readable + self.writable = writable + self.executable = executable + self.resolve_path = resolve_path + self.allow_dash = allow_dash + self.type = path_type + + if self.file_okay and not self.dir_okay: + self.name: str = _("file") + elif self.dir_okay and not self.file_okay: + self.name = _("directory") + else: + self.name = _("path") + + def to_info_dict(self) -> dict[str, t.Any]: + info_dict = super().to_info_dict() + info_dict.update( + exists=self.exists, + file_okay=self.file_okay, + dir_okay=self.dir_okay, + writable=self.writable, + readable=self.readable, + allow_dash=self.allow_dash, + ) + return info_dict + + def coerce_path_result( + self, value: str | os.PathLike[str] + ) -> str | bytes | os.PathLike[str]: + if self.type is not None and not isinstance(value, self.type): + if self.type is str: + return os.fsdecode(value) + elif self.type is bytes: + return os.fsencode(value) + else: + return t.cast("os.PathLike[str]", self.type(value)) + + return value + + def convert( + self, + value: str | os.PathLike[str], + param: Parameter | None, + ctx: Context | None, + ) -> str | bytes | os.PathLike[str]: + rv = value + + is_dash = self.file_okay and self.allow_dash and rv in (b"-", "-") + + if not is_dash: + if self.resolve_path: + rv = os.path.realpath(rv) + + try: + st = os.stat(rv) + except OSError: + if not self.exists: + return self.coerce_path_result(rv) + self.fail( + _("{name} {filename!r} does not exist.").format( + name=self.name.title(), filename=format_filename(value) + ), + param, + ctx, + ) + + if not self.file_okay and stat.S_ISREG(st.st_mode): + self.fail( + _("{name} {filename!r} is a file.").format( + name=self.name.title(), filename=format_filename(value) + ), + param, + ctx, + ) + if not self.dir_okay and stat.S_ISDIR(st.st_mode): + self.fail( + _("{name} {filename!r} is a directory.").format( + name=self.name.title(), filename=format_filename(value) + ), + param, + ctx, + ) + + if self.readable and not os.access(rv, os.R_OK): + self.fail( + _("{name} {filename!r} is not readable.").format( + name=self.name.title(), filename=format_filename(value) + ), + param, + ctx, + ) + + if self.writable and not os.access(rv, os.W_OK): + self.fail( + _("{name} {filename!r} is not writable.").format( + name=self.name.title(), filename=format_filename(value) + ), + param, + ctx, + ) + + if self.executable and not os.access(value, os.X_OK): + self.fail( + _("{name} {filename!r} is not executable.").format( + name=self.name.title(), filename=format_filename(value) + ), + param, + ctx, + ) + + return self.coerce_path_result(rv) + + def shell_complete( + self, ctx: Context, param: Parameter, incomplete: str + ) -> list[CompletionItem]: + """Return a special completion marker that tells the completion + system to use the shell to provide path completions for only + directories or any paths. + + :param ctx: Invocation context for this command. + :param param: The parameter that is requesting completion. + :param incomplete: Value being completed. May be empty. + + .. versionadded:: 8.0 + """ + from click.shell_completion import CompletionItem + + type = "dir" if self.dir_okay and not self.file_okay else "file" + return [CompletionItem(incomplete, type=type)] + + +class Tuple(CompositeParamType): + """The default behavior of Click is to apply a type on a value directly. + This works well in most cases, except for when `nargs` is set to a fixed + count and different types should be used for different items. In this + case the :class:`Tuple` type can be used. This type can only be used + if `nargs` is set to a fixed number. + + For more information see :ref:`tuple-type`. + + This can be selected by using a Python tuple literal as a type. + + :param types: a list of types that should be used for the tuple items. + """ + + def __init__(self, types: cabc.Sequence[type[t.Any] | ParamType]) -> None: + self.types: cabc.Sequence[ParamType] = [convert_type(ty) for ty in types] + + def to_info_dict(self) -> dict[str, t.Any]: + info_dict = super().to_info_dict() + info_dict["types"] = [t.to_info_dict() for t in self.types] + return info_dict + + @property + def name(self) -> str: # type: ignore + return f"<{' '.join(ty.name for ty in self.types)}>" + + @property + def arity(self) -> int: # type: ignore + return len(self.types) + + def convert( + self, value: t.Any, param: Parameter | None, ctx: Context | None + ) -> t.Any: + len_type = len(self.types) + len_value = len(value) + + if len_value != len_type: + self.fail( + ngettext( + "{len_type} values are required, but {len_value} was given.", + "{len_type} values are required, but {len_value} were given.", + len_value, + ).format(len_type=len_type, len_value=len_value), + param=param, + ctx=ctx, + ) + + return tuple( + ty(x, param, ctx) for ty, x in zip(self.types, value, strict=False) + ) + + +def convert_type(ty: t.Any | None, default: t.Any | None = None) -> ParamType: + """Find the most appropriate :class:`ParamType` for the given Python + type. If the type isn't provided, it can be inferred from a default + value. + """ + guessed_type = False + + if ty is None and default is not None: + if isinstance(default, (tuple, list)): + # If the default is empty, ty will remain None and will + # return STRING. + if default: + item = default[0] + + # A tuple of tuples needs to detect the inner types. + # Can't call convert recursively because that would + # incorrectly unwind the tuple to a single type. + if isinstance(item, (tuple, list)): + ty = tuple(map(type, item)) + else: + ty = type(item) + else: + ty = type(default) + + guessed_type = True + + if isinstance(ty, tuple): + return Tuple(ty) + + if isinstance(ty, ParamType): + return ty + + if ty is str or ty is None: + return STRING + + if ty is int: + return INT + + if ty is float: + return FLOAT + + if ty is bool: + return BOOL + + if guessed_type: + return STRING + + if __debug__: + try: + if issubclass(ty, ParamType): + raise AssertionError( + f"Attempted to use an uninstantiated parameter type ({ty})." + ) + except TypeError: + # ty is an instance (correct), so issubclass fails. + pass + + return FuncParamType(ty) + + +#: A dummy parameter type that just does nothing. From a user's +#: perspective this appears to just be the same as `STRING` but +#: internally no string conversion takes place if the input was bytes. +#: This is usually useful when working with file paths as they can +#: appear in bytes and unicode. +#: +#: For path related uses the :class:`Path` type is a better choice but +#: there are situations where an unprocessed type is useful which is why +#: it is is provided. +#: +#: .. versionadded:: 4.0 +UNPROCESSED = UnprocessedParamType() + +#: A unicode string parameter type which is the implicit default. This +#: can also be selected by using ``str`` as type. +STRING = StringParamType() + +#: An integer parameter. This can also be selected by using ``int`` as +#: type. +INT = IntParamType() + +#: A floating point value parameter. This can also be selected by using +#: ``float`` as type. +FLOAT = FloatParamType() + +#: A boolean parameter. This is the default for boolean flags. This can +#: also be selected by using ``bool`` as a type. +BOOL = BoolParamType() + +#: A UUID parameter. +UUID = UUIDParameterType() + + +class OptionHelpExtra(t.TypedDict, total=False): + envvars: tuple[str, ...] + default: str + range: str + required: str diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/jupyterlab_widgets/.gitignore b/data/conda_envs/evalclaw/lib/python3.11/site-packages/jupyterlab_widgets/.gitignore new file mode 100644 index 0000000000000000000000000000000000000000..74f3fd8be4be9034bdaa856af33042cb4f345a56 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/jupyterlab_widgets/.gitignore @@ -0,0 +1,14 @@ +*.suo +*.user +.DS_Store +node_modules +typings/tsd.d.ts +npm-debug.log +test/build +test/coverage +lib +dist +build +docs +example/*.js +static/ diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/jupyterlab_widgets/__init__.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/jupyterlab_widgets/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..2e4d87c60ce28a1f7ea0f8c70437bc8ff603b824 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/jupyterlab_widgets/__init__.py @@ -0,0 +1,20 @@ +# Copyright (c) Jupyter Development Team. +# Distributed under the terms of the Modified BSD License. + +from ._version import __version__ + + +def _jupyter_labextension_paths(): + import sys + from pathlib import Path + + labext_name = '@jupyter-widgets/jupyterlab-manager' + here = Path(__file__).parent.resolve() + src_prefix = here.parent / 'labextension' + + if not src_prefix.exists(): + src_prefix = Path(sys.prefix) / f'share/jupyter/labextensions/{labext_name}' + + return [{'src': str(src_prefix), 'dest': labext_name}] + +__all__ = ['_jupyter_labextension_paths', '__version__'] diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/jupyterlab_widgets/_version.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/jupyterlab_widgets/_version.py new file mode 100644 index 0000000000000000000000000000000000000000..6f138dde3a4b5d1d032b830c94119a12749e6c3f --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/jupyterlab_widgets/_version.py @@ -0,0 +1,4 @@ +# Copyright (c) Jupyter Development Team. +# Distributed under the terms of the Modified BSD License. + +__version__ = '3.0.16' diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/VERSION b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/VERSION new file mode 100644 index 0000000000000000000000000000000000000000..e0d61b5b0626590a4aa2a8a5a2503fc7c10635ca --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/VERSION @@ -0,0 +1 @@ +3.9.4 diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/__init__.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..13b48ee72d31f21149817f25ecf533e5f284be46 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/__init__.py @@ -0,0 +1,207 @@ +# Natural Language Toolkit (NLTK) +# +# Copyright (C) 2001-2026 NLTK Project +# Authors: Steven Bird +# Edward Loper +# URL: +# For license information, see LICENSE.TXT + +""" +The Natural Language Toolkit (NLTK) is an open source Python library +for Natural Language Processing. A free online book is available. +(If you use the library for academic research, please cite the book.) + +Steven Bird, Ewan Klein, and Edward Loper (2009). +Natural Language Processing with Python. O'Reilly Media Inc. +https://www.nltk.org/book/ + +isort:skip_file +""" + +import os +import importlib + +# ////////////////////////////////////////////////////// +# Metadata +# ////////////////////////////////////////////////////// + +# Version. For each new release, the version number should be updated +# in the file VERSION. +try: + # If a VERSION file exists, use it! + version_file = os.path.join(os.path.dirname(__file__), "VERSION") + with open(version_file) as infile: + __version__ = infile.read().strip() +except NameError: + __version__ = "unknown (running code interactively?)" +except OSError as ex: + __version__ = "unknown (%s)" % ex + +if __doc__ is not None: # fix for the ``python -OO`` + __doc__ += "\n@version: " + __version__ + + +# Copyright notice +__copyright__ = """\ +Copyright (C) 2001-2026 NLTK Project. + +Distributed and Licensed under the Apache License, Version 2.0, +which is included by reference. +""" + +__license__ = "Apache License, Version 2.0" +# Description of the toolkit, keywords, and the project's primary URL. +__longdescr__ = """\ +The Natural Language Toolkit (NLTK) is a Python package for +natural language processing. NLTK requires Python 3.10, 3.11, 3.12 or 3.13.""" +__keywords__ = [ + "NLP", + "CL", + "natural language processing", + "computational linguistics", + "parsing", + "tagging", + "tokenizing", + "syntax", + "linguistics", + "language", + "natural language", + "text analytics", +] +__url__ = "https://www.nltk.org/" + +# Maintainer, contributors, etc. +__maintainer__ = "NLTK Team" +__maintainer_email__ = "nltk.team@gmail.com" +__author__ = __maintainer__ +__author_email__ = __maintainer_email__ + +# "Trove" classifiers for Python Package Index. +__classifiers__ = [ + "Development Status :: 5 - Production/Stable", + "Intended Audience :: Developers", + "Intended Audience :: Education", + "Intended Audience :: Information Technology", + "Intended Audience :: Science/Research", + "License :: OSI Approved :: Apache Software License", + "Operating System :: OS Independent", + "Programming Language :: Python :: 3.10", + "Programming Language :: Python :: 3.11", + "Programming Language :: Python :: 3.12", + "Programming Language :: Python :: 3.13", + "Topic :: Scientific/Engineering", + "Topic :: Scientific/Engineering :: Artificial Intelligence", + "Topic :: Scientific/Engineering :: Human Machine Interfaces", + "Topic :: Scientific/Engineering :: Information Analysis", + "Topic :: Text Processing", + "Topic :: Text Processing :: Filters", + "Topic :: Text Processing :: General", + "Topic :: Text Processing :: Indexing", + "Topic :: Text Processing :: Linguistic", +] + +from nltk.internals import config_java + +# support numpy from pypy +try: + import numpypy +except ImportError: + pass + +# Override missing methods on environments where it cannot be used like GAE. +import subprocess + +if not hasattr(subprocess, "PIPE"): + + def _fake_PIPE(*args, **kwargs): + raise NotImplementedError("subprocess.PIPE is not supported.") + + subprocess.PIPE = _fake_PIPE +if not hasattr(subprocess, "Popen"): + + def _fake_Popen(*args, **kwargs): + raise NotImplementedError("subprocess.Popen is not supported.") + + subprocess.Popen = _fake_Popen + +########################################################### +# TOP-LEVEL MODULES +########################################################### + +# Import top-level functionality into top-level namespace + +from nltk.collocations import * +from nltk.decorators import decorator, memoize +from nltk.featstruct import * +from nltk.grammar import * +from nltk.probability import * +from nltk.text import * +from nltk.util import * +from nltk.jsontags import * + +########################################################### +# PACKAGES +########################################################### + +from nltk.chunk import * +from nltk.classify import * +from nltk.inference import * +from nltk.metrics import * +from nltk.parse import * +from nltk.tag import * +from nltk.tokenize import * +from nltk.translate import * +from nltk.tree import * +from nltk.sem import * +from nltk.stem import * + +# Packages which can be lazily imported +# (a) we don't import * +# (b) they're slow to import or have run-time dependencies +# that can safely fail at run time + +from nltk import lazyimport + +app = lazyimport.LazyModule("app", locals(), globals()) +chat = lazyimport.LazyModule("chat", locals(), globals()) +corpus = lazyimport.LazyModule("corpus", locals(), globals()) +draw = lazyimport.LazyModule("draw", locals(), globals()) +toolbox = lazyimport.LazyModule("toolbox", locals(), globals()) + +# Optional loading +try: + import numpy +except ImportError: + pass +else: + from nltk import cluster + +from nltk.downloader import download, download_shell + +# Check if tkinter exists without importing it to avoid crashes after +# forks on macOS. Only nltk.app, nltk.draw, and demo modules should +# have top-level tkinter imports. See #2949 for more details. +if importlib.util.find_spec("tkinter"): + try: + from nltk.downloader import download_gui + except RuntimeError as e: + import warnings + + warnings.warn( + "Corpus downloader GUI not loaded " + "(RuntimeError during import: %s)" % str(e) + ) + +# explicitly import all top-level modules (ensuring +# they override the same names inadvertently imported +# from a subpackage) + +from nltk import ccg, chunk, classify, collocations +from nltk import data, featstruct, grammar, help, inference, metrics +from nltk import misc, parse, probability, sem, stem, wsd +from nltk import tag, tbl, text, tokenize, translate, tree, util + + +# FIXME: override any accidentally imported demo, see https://github.com/nltk/nltk/issues/2116 +def demo(): + print("To run the demo code for a module, type nltk.module.demo()") diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/book.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/book.py new file mode 100644 index 0000000000000000000000000000000000000000..1555945f35cabbd6e5508910b2963749765287a8 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/book.py @@ -0,0 +1,213 @@ +# Natural Language Toolkit: Some texts for exploration in chapter 1 of the book +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Steven Bird +# +# URL: +# For license information, see LICENSE.TXT + +from nltk.corpus import ( + genesis, + gutenberg, + inaugural, + nps_chat, + treebank, + webtext, + wordnet, +) +from nltk.probability import FreqDist +from nltk.text import Text +from nltk.util import bigrams + +print("*** Introductory Examples for the NLTK Book ***") +print("Loading text1, ..., text9 and sent1, ..., sent9") +print("Type the name of the text or sentence to view it.") +print("Type: 'texts()' or 'sents()' to list the materials.") + +text1 = Text(gutenberg.words("melville-moby_dick.txt")) +print("text1:", text1.name) + +text2 = Text(gutenberg.words("austen-sense.txt")) +print("text2:", text2.name) + +text3 = Text(genesis.words("english-kjv.txt"), name="The Book of Genesis") +print("text3:", text3.name) + +text4 = Text(inaugural.words(), name="Inaugural Address Corpus") +print("text4:", text4.name) + +text5 = Text(nps_chat.words(), name="Chat Corpus") +print("text5:", text5.name) + +text6 = Text(webtext.words("grail.txt"), name="Monty Python and the Holy Grail") +print("text6:", text6.name) + +text7 = Text(treebank.words(), name="Wall Street Journal") +print("text7:", text7.name) + +text8 = Text(webtext.words("singles.txt"), name="Personals Corpus") +print("text8:", text8.name) + +text9 = Text(gutenberg.words("chesterton-thursday.txt")) +print("text9:", text9.name) + + +def texts(): + print("text1:", text1.name) + print("text2:", text2.name) + print("text3:", text3.name) + print("text4:", text4.name) + print("text5:", text5.name) + print("text6:", text6.name) + print("text7:", text7.name) + print("text8:", text8.name) + print("text9:", text9.name) + + +sent1 = ["Call", "me", "Ishmael", "."] +sent2 = [ + "The", + "family", + "of", + "Dashwood", + "had", + "long", + "been", + "settled", + "in", + "Sussex", + ".", +] +sent3 = [ + "In", + "the", + "beginning", + "God", + "created", + "the", + "heaven", + "and", + "the", + "earth", + ".", +] +sent4 = [ + "Fellow", + "-", + "Citizens", + "of", + "the", + "Senate", + "and", + "of", + "the", + "House", + "of", + "Representatives", + ":", +] +sent5 = [ + "I", + "have", + "a", + "problem", + "with", + "people", + "PMing", + "me", + "to", + "lol", + "JOIN", +] +sent6 = [ + "SCENE", + "1", + ":", + "[", + "wind", + "]", + "[", + "clop", + "clop", + "clop", + "]", + "KING", + "ARTHUR", + ":", + "Whoa", + "there", + "!", +] +sent7 = [ + "Pierre", + "Vinken", + ",", + "61", + "years", + "old", + ",", + "will", + "join", + "the", + "board", + "as", + "a", + "nonexecutive", + "director", + "Nov.", + "29", + ".", +] +sent8 = [ + "25", + "SEXY", + "MALE", + ",", + "seeks", + "attrac", + "older", + "single", + "lady", + ",", + "for", + "discreet", + "encounters", + ".", +] +sent9 = [ + "THE", + "suburb", + "of", + "Saffron", + "Park", + "lay", + "on", + "the", + "sunset", + "side", + "of", + "London", + ",", + "as", + "red", + "and", + "ragged", + "as", + "a", + "cloud", + "of", + "sunset", + ".", +] + + +def sents(): + print("sent1:", " ".join(sent1)) + print("sent2:", " ".join(sent2)) + print("sent3:", " ".join(sent3)) + print("sent4:", " ".join(sent4)) + print("sent5:", " ".join(sent5)) + print("sent6:", " ".join(sent6)) + print("sent7:", " ".join(sent7)) + print("sent8:", " ".join(sent8)) + print("sent9:", " ".join(sent9)) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/cli.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/cli.py new file mode 100644 index 0000000000000000000000000000000000000000..b4d3cf898f06edcae804c89818a40a63f4f863d3 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/cli.py @@ -0,0 +1,55 @@ +# Natural Language Toolkit: NLTK Command-Line Interface +# +# Copyright (C) 2001-2026 NLTK Project +# URL: +# For license information, see LICENSE.TXT + + +import click +from tqdm import tqdm + +from nltk import word_tokenize +from nltk.util import parallelize_preprocess + +CONTEXT_SETTINGS = dict(help_option_names=["-h", "--help"]) + + +@click.group(context_settings=CONTEXT_SETTINGS) +@click.version_option() +def cli(): + pass + + +@cli.command("tokenize") +@click.option( + "--language", + "-l", + default="en", + help="The language for the Punkt sentence tokenization.", +) +@click.option( + "--preserve-line", + "-l", + default=True, + is_flag=True, + help="An option to keep the preserve the sentence and not sentence tokenize it.", +) +@click.option("--processes", "-j", default=1, help="No. of processes.") +@click.option("--encoding", "-e", default="utf8", help="Specify encoding of file.") +@click.option( + "--delimiter", "-d", default=" ", help="Specify delimiter to join the tokens." +) +def tokenize_file(language, preserve_line, processes, encoding, delimiter): + """This command tokenizes text stream using nltk.word_tokenize""" + with click.get_text_stream("stdin", encoding=encoding) as fin: + with click.get_text_stream("stdout", encoding=encoding) as fout: + # If it's single process, joblib parallelization is slower, + # so just process line by line normally. + if processes == 1: + for line in tqdm(fin.readlines()): + print(delimiter.join(word_tokenize(line)), end="\n", file=fout) + else: + for outline in parallelize_preprocess( + word_tokenize, fin.readlines(), processes, progress_bar=True + ): + print(delimiter.join(outline), end="\n", file=fout) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/collections.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/collections.py new file mode 100644 index 0000000000000000000000000000000000000000..317ce4af37d55d69337856c325dfd02952ddc4ab --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/collections.py @@ -0,0 +1,657 @@ +# Natural Language Toolkit: Collections +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Steven Bird +# URL: +# For license information, see LICENSE.TXT + +import bisect +from functools import total_ordering +from itertools import chain, islice + +from nltk.internals import raise_unorderable_types, slice_bounds + +########################################################################## +# Ordered Dictionary +########################################################################## + + +class OrderedDict(dict): + def __init__(self, data=None, **kwargs): + self._keys = self.keys(data, kwargs.get("keys")) + self._default_factory = kwargs.get("default_factory") + if data is None: + dict.__init__(self) + else: + dict.__init__(self, data) + + def __delitem__(self, key): + dict.__delitem__(self, key) + self._keys.remove(key) + + def __getitem__(self, key): + try: + return dict.__getitem__(self, key) + except KeyError: + return self.__missing__(key) + + def __iter__(self): + return (key for key in self.keys()) + + def __missing__(self, key): + if not self._default_factory and key not in self._keys: + raise KeyError() + return self._default_factory() + + def __setitem__(self, key, item): + dict.__setitem__(self, key, item) + if key not in self._keys: + self._keys.append(key) + + def clear(self): + dict.clear(self) + self._keys.clear() + + def copy(self): + d = dict.copy(self) + d._keys = self._keys + return d + + def items(self): + return zip(self.keys(), self.values()) + + def keys(self, data=None, keys=None): + if data: + if keys: + assert isinstance(keys, list) + assert len(data) == len(keys) + return keys + else: + assert ( + isinstance(data, dict) + or isinstance(data, OrderedDict) + or isinstance(data, list) + ) + if isinstance(data, dict) or isinstance(data, OrderedDict): + return data.keys() + elif isinstance(data, list): + return [key for (key, value) in data] + elif "_keys" in self.__dict__: + return self._keys + else: + return [] + + def popitem(self): + if not self._keys: + raise KeyError() + + key = self._keys.pop() + value = self[key] + del self[key] + return (key, value) + + def setdefault(self, key, failobj=None): + dict.setdefault(self, key, failobj) + if key not in self._keys: + self._keys.append(key) + + def update(self, data): + dict.update(self, data) + for key in self.keys(data): + if key not in self._keys: + self._keys.append(key) + + def values(self): + return map(self.get, self._keys) + + +###################################################################### +# Lazy Sequences +###################################################################### + + +@total_ordering +class AbstractLazySequence: + """ + An abstract base class for read-only sequences whose values are + computed as needed. Lazy sequences act like tuples -- they can be + indexed, sliced, and iterated over; but they may not be modified. + + The most common application of lazy sequences in NLTK is for + corpus view objects, which provide access to the contents of a + corpus without loading the entire corpus into memory, by loading + pieces of the corpus from disk as needed. + + The result of modifying a mutable element of a lazy sequence is + undefined. In particular, the modifications made to the element + may or may not persist, depending on whether and when the lazy + sequence caches that element's value or reconstructs it from + scratch. + + Subclasses are required to define two methods: ``__len__()`` + and ``iterate_from()``. + """ + + def __len__(self): + """ + Return the number of tokens in the corpus file underlying this + corpus view. + """ + raise NotImplementedError("should be implemented by subclass") + + def iterate_from(self, start): + """ + Return an iterator that generates the tokens in the corpus + file underlying this corpus view, starting at the token number + ``start``. If ``start>=len(self)``, then this iterator will + generate no tokens. + """ + raise NotImplementedError("should be implemented by subclass") + + def __getitem__(self, i): + """ + Return the *i* th token in the corpus file underlying this + corpus view. Negative indices and spans are both supported. + """ + if isinstance(i, slice): + start, stop = slice_bounds(self, i) + return LazySubsequence(self, start, stop) + else: + # Handle negative indices + if i < 0: + i += len(self) + if i < 0: + raise IndexError("index out of range") + # Use iterate_from to extract it. + try: + return next(self.iterate_from(i)) + except StopIteration as e: + raise IndexError("index out of range") from e + + def __iter__(self): + """Return an iterator that generates the tokens in the corpus + file underlying this corpus view.""" + return self.iterate_from(0) + + def count(self, value): + """Return the number of times this list contains ``value``.""" + return sum(1 for elt in self if elt == value) + + def index(self, value, start=None, stop=None): + """Return the index of the first occurrence of ``value`` in this + list that is greater than or equal to ``start`` and less than + ``stop``. Negative start and stop values are treated like negative + slice bounds -- i.e., they count from the end of the list.""" + start, stop = slice_bounds(self, slice(start, stop)) + for i, elt in enumerate(islice(self, start, stop)): + if elt == value: + return i + start + raise ValueError("index(x): x not in list") + + def __contains__(self, value): + """Return true if this list contains ``value``.""" + return bool(self.count(value)) + + def __add__(self, other): + """Return a list concatenating self with other.""" + return LazyConcatenation([self, other]) + + def __radd__(self, other): + """Return a list concatenating other with self.""" + return LazyConcatenation([other, self]) + + def __mul__(self, count): + """Return a list concatenating self with itself ``count`` times.""" + return LazyConcatenation([self] * count) + + def __rmul__(self, count): + """Return a list concatenating self with itself ``count`` times.""" + return LazyConcatenation([self] * count) + + _MAX_REPR_SIZE = 60 + + def __repr__(self): + """ + Return a string representation for this corpus view that is + similar to a list's representation; but if it would be more + than 60 characters long, it is truncated. + """ + pieces = [] + length = 5 + for elt in self: + pieces.append(repr(elt)) + length += len(pieces[-1]) + 2 + if length > self._MAX_REPR_SIZE and len(pieces) > 2: + return "[%s, ...]" % ", ".join(pieces[:-1]) + return "[%s]" % ", ".join(pieces) + + def __eq__(self, other): + return type(self) == type(other) and list(self) == list(other) + + def __ne__(self, other): + return not self == other + + def __lt__(self, other): + if type(other) != type(self): + raise_unorderable_types("<", self, other) + return list(self) < list(other) + + def __hash__(self): + """ + :raise ValueError: Corpus view objects are unhashable. + """ + raise ValueError("%s objects are unhashable" % self.__class__.__name__) + + +class LazySubsequence(AbstractLazySequence): + """ + A subsequence produced by slicing a lazy sequence. This slice + keeps a reference to its source sequence, and generates its values + by looking them up in the source sequence. + """ + + MIN_SIZE = 100 + """ + The minimum size for which lazy slices should be created. If + ``LazySubsequence()`` is called with a subsequence that is + shorter than ``MIN_SIZE``, then a tuple will be returned instead. + """ + + def __new__(cls, source, start, stop): + """ + Construct a new slice from a given underlying sequence. The + ``start`` and ``stop`` indices should be absolute indices -- + i.e., they should not be negative (for indexing from the back + of a list) or greater than the length of ``source``. + """ + # If the slice is small enough, just use a tuple. + if stop - start < cls.MIN_SIZE: + return list(islice(source.iterate_from(start), stop - start)) + else: + return object.__new__(cls) + + def __init__(self, source, start, stop): + self._source = source + self._start = start + self._stop = stop + + def __len__(self): + return self._stop - self._start + + def iterate_from(self, start): + return islice( + self._source.iterate_from(start + self._start), max(0, len(self) - start) + ) + + +class LazyConcatenation(AbstractLazySequence): + """ + A lazy sequence formed by concatenating a list of lists. This + underlying list of lists may itself be lazy. ``LazyConcatenation`` + maintains an index that it uses to keep track of the relationship + between offsets in the concatenated lists and offsets in the + sublists. + """ + + def __init__(self, list_of_lists): + self._list = list_of_lists + self._offsets = [0] + + def __len__(self): + if len(self._offsets) <= len(self._list): + for _ in self.iterate_from(self._offsets[-1]): + pass + return self._offsets[-1] + + def iterate_from(self, start_index): + if start_index < self._offsets[-1]: + sublist_index = bisect.bisect_right(self._offsets, start_index) - 1 + else: + sublist_index = len(self._offsets) - 1 + + index = self._offsets[sublist_index] + + # Construct an iterator over the sublists. + if isinstance(self._list, AbstractLazySequence): + sublist_iter = self._list.iterate_from(sublist_index) + else: + sublist_iter = islice(self._list, sublist_index, None) + + for sublist in sublist_iter: + if sublist_index == (len(self._offsets) - 1): + assert ( + index + len(sublist) >= self._offsets[-1] + ), "offsets not monotonic increasing!" + self._offsets.append(index + len(sublist)) + else: + assert self._offsets[sublist_index + 1] == index + len( + sublist + ), "inconsistent list value (num elts)" + + yield from sublist[max(0, start_index - index) :] + + index += len(sublist) + sublist_index += 1 + + +class LazyMap(AbstractLazySequence): + """ + A lazy sequence whose elements are formed by applying a given + function to each element in one or more underlying lists. The + function is applied lazily -- i.e., when you read a value from the + list, ``LazyMap`` will calculate that value by applying its + function to the underlying lists' value(s). ``LazyMap`` is + essentially a lazy version of the Python primitive function + ``map``. In particular, the following two expressions are + equivalent: + + >>> from nltk.collections import LazyMap + >>> function = str + >>> sequence = [1,2,3] + >>> map(function, sequence) # doctest: +SKIP + ['1', '2', '3'] + >>> list(LazyMap(function, sequence)) + ['1', '2', '3'] + + Like the Python ``map`` primitive, if the source lists do not have + equal size, then the value None will be supplied for the + 'missing' elements. + + Lazy maps can be useful for conserving memory, in cases where + individual values take up a lot of space. This is especially true + if the underlying list's values are constructed lazily, as is the + case with many corpus readers. + + A typical example of a use case for this class is performing + feature detection on the tokens in a corpus. Since featuresets + are encoded as dictionaries, which can take up a lot of memory, + using a ``LazyMap`` can significantly reduce memory usage when + training and running classifiers. + """ + + def __init__(self, function, *lists, **config): + """ + :param function: The function that should be applied to + elements of ``lists``. It should take as many arguments + as there are ``lists``. + :param lists: The underlying lists. + :param cache_size: Determines the size of the cache used + by this lazy map. (default=5) + """ + if not lists: + raise TypeError("LazyMap requires at least two args") + + self._lists = lists + self._func = function + self._cache_size = config.get("cache_size", 5) + self._cache = {} if self._cache_size > 0 else None + + # If you just take bool() of sum() here _all_lazy will be true just + # in case n >= 1 list is an AbstractLazySequence. Presumably this + # isn't what's intended. + self._all_lazy = sum( + isinstance(lst, AbstractLazySequence) for lst in lists + ) == len(lists) + + def iterate_from(self, index): + # Special case: one lazy sublist + if len(self._lists) == 1 and self._all_lazy: + for value in self._lists[0].iterate_from(index): + yield self._func(value) + return + + # Special case: one non-lazy sublist + elif len(self._lists) == 1: + while True: + try: + yield self._func(self._lists[0][index]) + except IndexError: + return + index += 1 + + # Special case: n lazy sublists + elif self._all_lazy: + iterators = [lst.iterate_from(index) for lst in self._lists] + while True: + elements = [] + for iterator in iterators: + try: + elements.append(next(iterator)) + # FIXME: What is this except really catching? StopIteration? + except StopIteration: + elements.append(None) + if elements == [None] * len(self._lists): + return + yield self._func(*elements) + index += 1 + + # general case + else: + while True: + try: + elements = [lst[index] for lst in self._lists] + except IndexError: + elements = [None] * len(self._lists) + for i, lst in enumerate(self._lists): + try: + elements[i] = lst[index] + except IndexError: + pass + if elements == [None] * len(self._lists): + return + yield self._func(*elements) + index += 1 + + def __getitem__(self, index): + if isinstance(index, slice): + sliced_lists = [lst[index] for lst in self._lists] + return LazyMap(self._func, *sliced_lists) + else: + # Handle negative indices + if index < 0: + index += len(self) + if index < 0: + raise IndexError("index out of range") + # Check the cache + if self._cache is not None and index in self._cache: + return self._cache[index] + # Calculate the value + try: + val = next(self.iterate_from(index)) + except StopIteration as e: + raise IndexError("index out of range") from e + # Update the cache + if self._cache is not None: + if len(self._cache) > self._cache_size: + self._cache.popitem() # discard random entry + self._cache[index] = val + # Return the value + return val + + def __len__(self): + return max(len(lst) for lst in self._lists) + + +class LazyZip(LazyMap): + """ + A lazy sequence whose elements are tuples, each containing the i-th + element from each of the argument sequences. The returned list is + truncated in length to the length of the shortest argument sequence. The + tuples are constructed lazily -- i.e., when you read a value from the + list, ``LazyZip`` will calculate that value by forming a tuple from + the i-th element of each of the argument sequences. + + ``LazyZip`` is essentially a lazy version of the Python primitive function + ``zip``. In particular, an evaluated LazyZip is equivalent to a zip: + + >>> from nltk.collections import LazyZip + >>> sequence1, sequence2 = [1, 2, 3], ['a', 'b', 'c'] + >>> zip(sequence1, sequence2) # doctest: +SKIP + [(1, 'a'), (2, 'b'), (3, 'c')] + >>> list(LazyZip(sequence1, sequence2)) + [(1, 'a'), (2, 'b'), (3, 'c')] + >>> sequences = [sequence1, sequence2, [6,7,8,9]] + >>> list(zip(*sequences)) == list(LazyZip(*sequences)) + True + + Lazy zips can be useful for conserving memory in cases where the argument + sequences are particularly long. + + A typical example of a use case for this class is combining long sequences + of gold standard and predicted values in a classification or tagging task + in order to calculate accuracy. By constructing tuples lazily and + avoiding the creation of an additional long sequence, memory usage can be + significantly reduced. + """ + + def __init__(self, *lists): + """ + :param lists: the underlying lists + :type lists: list(list) + """ + LazyMap.__init__(self, lambda *elts: elts, *lists) + + def iterate_from(self, index): + iterator = LazyMap.iterate_from(self, index) + while index < len(self): + yield next(iterator) + index += 1 + return + + def __len__(self): + return min(len(lst) for lst in self._lists) + + +class LazyEnumerate(LazyZip): + """ + A lazy sequence whose elements are tuples, each containing a count (from + zero) and a value yielded by underlying sequence. ``LazyEnumerate`` is + useful for obtaining an indexed list. The tuples are constructed lazily + -- i.e., when you read a value from the list, ``LazyEnumerate`` will + calculate that value by forming a tuple from the count of the i-th + element and the i-th element of the underlying sequence. + + ``LazyEnumerate`` is essentially a lazy version of the Python primitive + function ``enumerate``. In particular, the following two expressions are + equivalent: + + >>> from nltk.collections import LazyEnumerate + >>> sequence = ['first', 'second', 'third'] + >>> list(enumerate(sequence)) + [(0, 'first'), (1, 'second'), (2, 'third')] + >>> list(LazyEnumerate(sequence)) + [(0, 'first'), (1, 'second'), (2, 'third')] + + Lazy enumerations can be useful for conserving memory in cases where the + argument sequences are particularly long. + + A typical example of a use case for this class is obtaining an indexed + list for a long sequence of values. By constructing tuples lazily and + avoiding the creation of an additional long sequence, memory usage can be + significantly reduced. + """ + + def __init__(self, lst): + """ + :param lst: the underlying list + :type lst: list + """ + LazyZip.__init__(self, range(len(lst)), lst) + + +class LazyIteratorList(AbstractLazySequence): + """ + Wraps an iterator, loading its elements on demand + and making them subscriptable. + __repr__ displays only the first few elements. + """ + + def __init__(self, it, known_len=None): + self._it = it + self._len = known_len + self._cache = [] + + def __len__(self): + if self._len: + return self._len + for _ in self.iterate_from(len(self._cache)): + pass + self._len = len(self._cache) + return self._len + + def iterate_from(self, start): + """Create a new iterator over this list starting at the given offset.""" + while len(self._cache) < start: + v = next(self._it) + self._cache.append(v) + i = start + while i < len(self._cache): + yield self._cache[i] + i += 1 + try: + while True: + v = next(self._it) + self._cache.append(v) + yield v + except StopIteration: + pass + + def __add__(self, other): + """Return a list concatenating self with other.""" + return type(self)(chain(self, other)) + + def __radd__(self, other): + """Return a list concatenating other with self.""" + return type(self)(chain(other, self)) + + +###################################################################### +# Trie Implementation +###################################################################### +class Trie(dict): + """A Trie implementation for strings""" + + LEAF = True + + def __init__(self, strings=None): + """Builds a Trie object, which is built around a ``dict`` + + If ``strings`` is provided, it will add the ``strings``, which + consist of a ``list`` of ``strings``, to the Trie. + Otherwise, it'll construct an empty Trie. + + :param strings: List of strings to insert into the trie + (Default is ``None``) + :type strings: list(str) + + """ + super().__init__() + if strings: + for string in strings: + self.insert(string) + + def insert(self, string): + """Inserts ``string`` into the Trie + + :param string: String to insert into the trie + :type string: str + + :Example: + + >>> from nltk.collections import Trie + >>> trie = Trie(["abc", "def"]) + >>> expected = {'a': {'b': {'c': {True: None}}}, \ + 'd': {'e': {'f': {True: None}}}} + >>> trie == expected + True + + """ + if len(string): + self[string[0]].insert(string[1:]) + else: + # mark the string is complete + self[Trie.LEAF] = None + + def __missing__(self, key): + self[key] = Trie() + return self[key] diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/collocations.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/collocations.py new file mode 100644 index 0000000000000000000000000000000000000000..21389758e9e5194e2048b2b3454585845f007380 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/collocations.py @@ -0,0 +1,421 @@ +# Natural Language Toolkit: Collocations and Association Measures +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Joel Nothman +# URL: +# For license information, see LICENSE.TXT +# +""" +Tools to identify collocations --- words that often appear consecutively +--- within corpora. They may also be used to find other associations between +word occurrences. +See Manning and Schutze ch. 5 at https://nlp.stanford.edu/fsnlp/promo/colloc.pdf +and the Text::NSP Perl package at http://ngram.sourceforge.net + +Finding collocations requires first calculating the frequencies of words and +their appearance in the context of other words. Often the collection of words +will then requiring filtering to only retain useful content terms. Each ngram +of words may then be scored according to some association measure, in order +to determine the relative likelihood of each ngram being a collocation. + +The ``BigramCollocationFinder`` and ``TrigramCollocationFinder`` classes provide +these functionalities, dependent on being provided a function which scores a +ngram given appropriate frequency counts. A number of standard association +measures are provided in bigram_measures and trigram_measures. +""" + +# Possible TODOs: +# - consider the distinction between f(x,_) and f(x) and whether our +# approximation is good enough for fragmented data, and mention it +# - add a n-gram collocation finder with measures which only utilise n-gram +# and unigram counts (raw_freq, pmi, student_t) + +import itertools as _itertools + +# these two unused imports are referenced in collocations.doctest +from nltk.metrics import ( + BigramAssocMeasures, + ContingencyMeasures, + QuadgramAssocMeasures, + TrigramAssocMeasures, +) +from nltk.probability import FreqDist +from nltk.util import ngrams + + +class AbstractCollocationFinder: + """ + An abstract base class for collocation finders whose purpose is to + collect collocation candidate frequencies, filter and rank them. + + As a minimum, collocation finders require the frequencies of each + word in a corpus, and the joint frequency of word tuples. This data + should be provided through nltk.probability.FreqDist objects or an + identical interface. + """ + + def __init__(self, word_fd, ngram_fd): + self.word_fd = word_fd + self.N = word_fd.N() + self.ngram_fd = ngram_fd + + @classmethod + def _build_new_documents( + cls, documents, window_size, pad_left=False, pad_right=False, pad_symbol=None + ): + """ + Pad the document with the place holder according to the window_size + """ + padding = (pad_symbol,) * (window_size - 1) + if pad_right: + return _itertools.chain.from_iterable( + _itertools.chain(doc, padding) for doc in documents + ) + if pad_left: + return _itertools.chain.from_iterable( + _itertools.chain(padding, doc) for doc in documents + ) + + @classmethod + def from_documents(cls, documents): + """Constructs a collocation finder given a collection of documents, + each of which is a list (or iterable) of tokens. + """ + # return cls.from_words(_itertools.chain(*documents)) + return cls.from_words( + cls._build_new_documents(documents, cls.default_ws, pad_right=True) + ) + + @staticmethod + def _ngram_freqdist(words, n): + return FreqDist(tuple(words[i : i + n]) for i in range(len(words) - 1)) + + def _apply_filter(self, fn=lambda ngram, freq: False): + """Generic filter removes ngrams from the frequency distribution + if the function returns True when passed an ngram tuple. + """ + tmp_ngram = FreqDist() + for ngram, freq in self.ngram_fd.items(): + if not fn(ngram, freq): + tmp_ngram[ngram] = freq + self.ngram_fd = tmp_ngram + + def apply_freq_filter(self, min_freq): + """Removes candidate ngrams which have frequency less than min_freq.""" + self._apply_filter(lambda ng, freq: freq < min_freq) + + def apply_ngram_filter(self, fn): + """Removes candidate ngrams (w1, w2, ...) where fn(w1, w2, ...) + evaluates to True. + """ + self._apply_filter(lambda ng, f: fn(*ng)) + + def apply_word_filter(self, fn): + """Removes candidate ngrams (w1, w2, ...) where any of (fn(w1), fn(w2), + ...) evaluates to True. + """ + self._apply_filter(lambda ng, f: any(fn(w) for w in ng)) + + def _score_ngrams(self, score_fn): + """Generates of (ngram, score) pairs as determined by the scoring + function provided. + """ + for tup in self.ngram_fd: + score = self.score_ngram(score_fn, *tup) + if score is not None: + yield tup, score + + def score_ngrams(self, score_fn): + """Returns a sequence of (ngram, score) pairs ordered from highest to + lowest score, as determined by the scoring function provided. + """ + return sorted(self._score_ngrams(score_fn), key=lambda t: (-t[1], t[0])) + + def nbest(self, score_fn, n): + """Returns the top n ngrams when scored by the given function.""" + return [p for p, s in self.score_ngrams(score_fn)[:n]] + + def above_score(self, score_fn, min_score): + """Returns a sequence of ngrams, ordered by decreasing score, whose + scores each exceed the given minimum score. + """ + for ngram, score in self.score_ngrams(score_fn): + if score > min_score: + yield ngram + else: + break + + +class BigramCollocationFinder(AbstractCollocationFinder): + """A tool for the finding and ranking of bigram collocations or other + association measures. It is often useful to use from_words() rather than + constructing an instance directly. + """ + + default_ws = 2 + + def __init__(self, word_fd, bigram_fd, window_size=2): + """Construct a BigramCollocationFinder, given FreqDists for + appearances of words and (possibly non-contiguous) bigrams. + """ + AbstractCollocationFinder.__init__(self, word_fd, bigram_fd) + self.window_size = window_size + + @classmethod + def from_words(cls, words, window_size=2): + """Construct a BigramCollocationFinder for all bigrams in the given + sequence. When window_size > 2, count non-contiguous bigrams, in the + style of Church and Hanks's (1990) association ratio. + """ + wfd = FreqDist() + bfd = FreqDist() + + if window_size < 2: + raise ValueError("Specify window_size at least 2") + + for window in ngrams(words, window_size, pad_right=True): + w1 = window[0] + if w1 is None: + continue + wfd[w1] += 1 + for w2 in window[1:]: + if w2 is not None: + bfd[(w1, w2)] += 1 + return cls(wfd, bfd, window_size=window_size) + + def score_ngram(self, score_fn, w1, w2): + """Returns the score for a given bigram using the given scoring + function. Following Church and Hanks (1990), counts are scaled by + a factor of 1/(window_size - 1). + """ + n_all = self.N + n_ii = self.ngram_fd[(w1, w2)] / (self.window_size - 1.0) + if not n_ii: + return + n_ix = self.word_fd[w1] + n_xi = self.word_fd[w2] + return score_fn(n_ii, (n_ix, n_xi), n_all) + + +class TrigramCollocationFinder(AbstractCollocationFinder): + """A tool for the finding and ranking of trigram collocations or other + association measures. It is often useful to use from_words() rather than + constructing an instance directly. + """ + + default_ws = 3 + + def __init__(self, word_fd, bigram_fd, wildcard_fd, trigram_fd): + """Construct a TrigramCollocationFinder, given FreqDists for + appearances of words, bigrams, two words with any word between them, + and trigrams. + """ + AbstractCollocationFinder.__init__(self, word_fd, trigram_fd) + self.wildcard_fd = wildcard_fd + self.bigram_fd = bigram_fd + + @classmethod + def from_words(cls, words, window_size=3): + """Construct a TrigramCollocationFinder for all trigrams in the given + sequence. + """ + if window_size < 3: + raise ValueError("Specify window_size at least 3") + + wfd = FreqDist() + wildfd = FreqDist() + bfd = FreqDist() + tfd = FreqDist() + for window in ngrams(words, window_size, pad_right=True): + w1 = window[0] + if w1 is None: + continue + for w2, w3 in _itertools.combinations(window[1:], 2): + wfd[w1] += 1 + if w2 is None: + continue + bfd[(w1, w2)] += 1 + if w3 is None: + continue + wildfd[(w1, w3)] += 1 + tfd[(w1, w2, w3)] += 1 + return cls(wfd, bfd, wildfd, tfd) + + def bigram_finder(self): + """Constructs a bigram collocation finder with the bigram and unigram + data from this finder. Note that this does not include any filtering + applied to this finder. + """ + return BigramCollocationFinder(self.word_fd, self.bigram_fd) + + def score_ngram(self, score_fn, w1, w2, w3): + """Returns the score for a given trigram using the given scoring + function. + """ + n_all = self.N + n_iii = self.ngram_fd[(w1, w2, w3)] + if not n_iii: + return + n_iix = self.bigram_fd[(w1, w2)] + n_ixi = self.wildcard_fd[(w1, w3)] + n_xii = self.bigram_fd[(w2, w3)] + n_ixx = self.word_fd[w1] + n_xix = self.word_fd[w2] + n_xxi = self.word_fd[w3] + return score_fn(n_iii, (n_iix, n_ixi, n_xii), (n_ixx, n_xix, n_xxi), n_all) + + +class QuadgramCollocationFinder(AbstractCollocationFinder): + """A tool for the finding and ranking of quadgram collocations or other association measures. + It is often useful to use from_words() rather than constructing an instance directly. + """ + + default_ws = 4 + + def __init__(self, word_fd, quadgram_fd, ii, iii, ixi, ixxi, iixi, ixii): + """Construct a QuadgramCollocationFinder, given FreqDists for appearances of words, + bigrams, trigrams, two words with one word and two words between them, three words + with a word between them in both variations. + """ + AbstractCollocationFinder.__init__(self, word_fd, quadgram_fd) + self.iii = iii + self.ii = ii + self.ixi = ixi + self.ixxi = ixxi + self.iixi = iixi + self.ixii = ixii + + @classmethod + def from_words(cls, words, window_size=4): + if window_size < 4: + raise ValueError("Specify window_size at least 4") + ixxx = FreqDist() + iiii = FreqDist() + ii = FreqDist() + iii = FreqDist() + ixi = FreqDist() + ixxi = FreqDist() + iixi = FreqDist() + ixii = FreqDist() + + for window in ngrams(words, window_size, pad_right=True): + w1 = window[0] + if w1 is None: + continue + for w2, w3, w4 in _itertools.combinations(window[1:], 3): + ixxx[w1] += 1 + if w2 is None: + continue + ii[(w1, w2)] += 1 + if w3 is None: + continue + iii[(w1, w2, w3)] += 1 + ixi[(w1, w3)] += 1 + if w4 is None: + continue + iiii[(w1, w2, w3, w4)] += 1 + ixxi[(w1, w4)] += 1 + ixii[(w1, w3, w4)] += 1 + iixi[(w1, w2, w4)] += 1 + + return cls(ixxx, iiii, ii, iii, ixi, ixxi, iixi, ixii) + + def score_ngram(self, score_fn, w1, w2, w3, w4): + n_all = self.N + n_iiii = self.ngram_fd[(w1, w2, w3, w4)] + if not n_iiii: + return + n_iiix = self.iii[(w1, w2, w3)] + n_xiii = self.iii[(w2, w3, w4)] + n_iixi = self.iixi[(w1, w2, w4)] + n_ixii = self.ixii[(w1, w3, w4)] + + n_iixx = self.ii[(w1, w2)] + n_xxii = self.ii[(w3, w4)] + n_xiix = self.ii[(w2, w3)] + n_ixix = self.ixi[(w1, w3)] + n_ixxi = self.ixxi[(w1, w4)] + n_xixi = self.ixi[(w2, w4)] + + n_ixxx = self.word_fd[w1] + n_xixx = self.word_fd[w2] + n_xxix = self.word_fd[w3] + n_xxxi = self.word_fd[w4] + return score_fn( + n_iiii, + (n_iiix, n_iixi, n_ixii, n_xiii), + (n_iixx, n_ixix, n_ixxi, n_xixi, n_xxii, n_xiix), + (n_ixxx, n_xixx, n_xxix, n_xxxi), + n_all, + ) + + +def demo(scorer=None, compare_scorer=None): + """Finds bigram collocations in the files of the WebText corpus.""" + from nltk.metrics import ( + BigramAssocMeasures, + ranks_from_scores, + spearman_correlation, + ) + + if scorer is None: + scorer = BigramAssocMeasures.likelihood_ratio + if compare_scorer is None: + compare_scorer = BigramAssocMeasures.raw_freq + + from nltk.corpus import stopwords, webtext + + ignored_words = stopwords.words("english") + word_filter = lambda w: len(w) < 3 or w.lower() in ignored_words + + for file in webtext.fileids(): + words = [word.lower() for word in webtext.words(file)] + + cf = BigramCollocationFinder.from_words(words) + cf.apply_freq_filter(3) + cf.apply_word_filter(word_filter) + + corr = spearman_correlation( + ranks_from_scores(cf.score_ngrams(scorer)), + ranks_from_scores(cf.score_ngrams(compare_scorer)), + ) + print(file) + print("\t", [" ".join(tup) for tup in cf.nbest(scorer, 15)]) + print(f"\t Correlation to {compare_scorer.__name__}: {corr:0.4f}") + + +# Slows down loading too much +# bigram_measures = BigramAssocMeasures() +# trigram_measures = TrigramAssocMeasures() + +# Command-line interface for demonstrating bigram collocations. +# +# Usage: python -m nltk.collocations [scorer] [compare_scorer] +# +# Demonstrates bigram collocations on the WebText corpus. +# Defaults to likelihood_ratio and raw_freq if not specified. +# +# Available scorers: +# chi_sq, dice, fisher, jaccard, likelihood_ratio, mi_like, +# phi_sq, pmi, poisson_stirling, raw_freq, student_t +if __name__ == "__main__": + import sys + + from nltk.metrics import BigramAssocMeasures + + try: + scorer = getattr(BigramAssocMeasures, sys.argv[1], None) + except IndexError: + scorer = None + try: + compare_scorer = getattr(BigramAssocMeasures, sys.argv[2], None) + except IndexError: + compare_scorer = None + + demo(scorer, compare_scorer) + +__all__ = [ + "BigramCollocationFinder", + "TrigramCollocationFinder", + "QuadgramCollocationFinder", +] diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/compat.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/compat.py new file mode 100644 index 0000000000000000000000000000000000000000..6b9045b781545be019f6f4563a51b8888eb2197a --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/compat.py @@ -0,0 +1,38 @@ +# Natural Language Toolkit: Compatibility +# +# Copyright (C) 2001-2026 NLTK Project +# +# URL: +# For license information, see LICENSE.TXT + +import os +from functools import wraps + +# ======= Compatibility for datasets that care about Python versions ======== + +# The following datasets have a /PY3 subdirectory containing +# a full copy of the data which has been re-encoded or repickled. +DATA_UPDATES = [] + +_PY3_DATA_UPDATES = [os.path.join(*path_list) for path_list in DATA_UPDATES] + + +def add_py3_data(path): + for item in _PY3_DATA_UPDATES: + if item in str(path) and "/PY3" not in str(path): + pos = path.index(item) + len(item) + if path[pos : pos + 4] == ".zip": + pos += 4 + path = path[:pos] + "/PY3" + path[pos:] + break + return path + + +# for use in adding /PY3 to the second (filename) argument +# of the file pointers in data.py +def py3_data(init_func): + def _decorator(*args, **kwargs): + args = (args[0], add_py3_data(args[1])) + args[2:] + return init_func(*args, **kwargs) + + return wraps(init_func)(_decorator) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/data.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/data.py new file mode 100644 index 0000000000000000000000000000000000000000..63d719eb27ea8d6aa19ca18de79f1841dc074d20 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/data.py @@ -0,0 +1,1696 @@ +# Natural Language Toolkit: Utility functions +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Edward Loper +# Author: ekaf (Restricting and switching pickles) +# URL: +# For license information, see LICENSE.TXT + +""" +Functions to find and load NLTK resource files, such as corpora, +grammars, and saved processing objects. Resource files are identified +using URLs, such as ``nltk:corpora/abc/rural.txt`` or +``https://raw.githubusercontent.com/nltk/nltk/develop/nltk/test/toy.cfg``. +The following URL protocols are supported: + + - ``file:path``: Specifies the file whose path is *path*. + Both relative and absolute paths may be used. + + - ``https://host/path``: Specifies the file stored on the web + server *host* at path *path*. + + - ``nltk:path``: Specifies the file stored in the NLTK data + package at *path*. NLTK will search for these files in the + directories specified by ``nltk.data.path``. + +If no protocol is specified, then the default protocol ``nltk:`` will +be used. + +This module provides to functions that can be used to access a +resource file, given its URL: ``load()`` loads a given resource, and +adds it to a resource cache; and ``retrieve()`` copies a given resource +to a local file. +""" + +import codecs +import functools +import os +import pickle +import re +import sys +import textwrap +import urllib.request +import zipfile +from abc import ABCMeta, abstractmethod +from gzip import WRITE as GZ_WRITE +from gzip import GzipFile +from io import BytesIO, TextIOWrapper +from urllib.request import url2pathname + +from nltk.pathsec import ZipFile +from nltk.pathsec import open as _secure_open +from nltk.pathsec import urlopen as _secure_urlopen + +# Reject unsafe no-protocol paths: traversal segments, trailing '..', absolute paths, +# backslashes, Windows drive letters. Use a raw-string pattern and do not anchor only +# at the start — we'll use search() for safety checks. +_UNSAFE_NO_PROTOCOL_RE = re.compile(r"(?:\.\./|\.\.$|^/|\\|[A-Za-z]:[/\\])") + + +def _reject_unsafe_no_protocol(resource_url): + """ + Reject unsafe resource strings that *omit an explicit protocol*. + + Note: some no-protocol inputs are interpreted by split_resource_url() as + file-style paths (e.g., bare Windows drive paths like "C:/foo"). These must + still be rejected here when they contain unsafe patterns. + """ + if _UNSAFE_NO_PROTOCOL_RE.search(resource_url): + raise ValueError(f"Unsafe resource path: {resource_url!r}") + + +try: + from zlib import Z_SYNC_FLUSH as FLUSH +except ImportError: + from zlib import Z_FINISH as FLUSH + +from nltk import grammar, sem +from nltk.internals import deprecated + +textwrap_indent = functools.partial(textwrap.indent, prefix=" ") + +###################################################################### +# Search Path +###################################################################### + +path = [] +"""A list of directories where the NLTK data package might reside. + These directories will be checked in order when looking for a + resource in the data package. Note that this allows users to + substitute in their own versions of resources, if they have them + (e.g., in their home directory under ~/nltk_data).""" + +# User-specified locations: +_paths_from_env = os.environ.get("NLTK_DATA", "").split(os.pathsep) +path += [d for d in _paths_from_env if d] +if "APPENGINE_RUNTIME" not in os.environ and os.path.expanduser("~/") != "~/": + path.append(os.path.expanduser("~/nltk_data")) + +if sys.platform.startswith("win"): + # Common locations on Windows: + path += [ + os.path.join(sys.prefix, "nltk_data"), + os.path.join(sys.prefix, "share", "nltk_data"), + os.path.join(sys.prefix, "lib", "nltk_data"), + os.path.join(os.environ.get("APPDATA", "C:\\"), "nltk_data"), + r"C:\nltk_data", + r"D:\nltk_data", + r"E:\nltk_data", + ] +else: + # Common locations on UNIX & OS X: + path += [ + os.path.join(sys.prefix, "nltk_data"), + os.path.join(sys.prefix, "share", "nltk_data"), + os.path.join(sys.prefix, "lib", "nltk_data"), + "/usr/share/nltk_data", + "/usr/local/share/nltk_data", + "/usr/lib/nltk_data", + "/usr/local/lib/nltk_data", + ] + + +###################################################################### +# Util Functions +###################################################################### + + +def gzip_open_unicode( + filename, + mode="rb", + compresslevel=9, + encoding="utf-8", + fileobj=None, + errors=None, + newline=None, +): + if fileobj is None: + fileobj = GzipFile(filename, mode, compresslevel, fileobj) + return TextIOWrapper(fileobj, encoding, errors, newline) + + +def split_resource_url(resource_url): + """ + Splits a resource url into ":". + + >>> windows = sys.platform.startswith('win') + >>> split_resource_url('nltk:home/nltk') + ('nltk', 'home/nltk') + >>> split_resource_url('nltk:/home/nltk') + ('nltk', '/home/nltk') + >>> split_resource_url('file:/home/nltk') + ('file', '/home/nltk') + >>> split_resource_url('file:///home/nltk') + ('file', '/home/nltk') + >>> split_resource_url('file:///C:/home/nltk') + ('file', '/C:/home/nltk') + """ + protocol, path_ = resource_url.split(":", 1) + + # Handle plain Windows drive paths like "C:/foo" or "D:/bar" + # Treat these as file-style inputs even without "file:" prefix. + if ( + len(protocol) == 1 + and protocol.isalpha() + and (path_.startswith("/") or path_.startswith("\\")) + ): + return "file", f"/{protocol}:{path_.lstrip('/')}" + + if protocol == "nltk": + pass + elif protocol == "file": + if path_.startswith("/"): + path_ = "/" + path_.lstrip("/") + else: + path_ = re.sub(r"^/{0,2}", "", path_) + + return protocol, path_ + + +def normalize_resource_url(resource_url): + r""" + Normalizes a resource url + + >>> windows = sys.platform.startswith('win') + >>> os.path.normpath(split_resource_url(normalize_resource_url('file:grammar.fcfg'))[1]) == \ + ... ('\\' if windows else '') + os.path.abspath(os.path.join(os.curdir, 'grammar.fcfg')) + True + >>> not windows or normalize_resource_url('file:C:/dir/file') == 'file:///C:/dir/file' + True + >>> not windows or normalize_resource_url('file:C:\\dir\\file') == 'file:///C:/dir/file' + True + >>> not windows or normalize_resource_url('file:C:\\dir/file') == 'file:///C:/dir/file' + True + >>> not windows or normalize_resource_url('file://C:/dir/file') == 'file:///C:/dir/file' + True + >>> not windows or normalize_resource_url('file:////C:/dir/file') == 'file:///C:/dir/file' + True + >>> windows or normalize_resource_url('file:/dir/file/toy.cfg') == 'file:///dir/file/toy.cfg' + True + >>> normalize_resource_url('nltk:home/nltk') + 'nltk:home/nltk' + >>> windows or normalize_resource_url('nltk:/home/nltk') == 'file:///home/nltk' + True + >>> normalize_resource_url('https://example.com/dir/file') + 'https://example.com/dir/file' + >>> normalize_resource_url('dir/file') + 'nltk:dir/file' + + # Security: reject attempts to smuggle local Windows paths via the "nltk:" protocol. + >>> normalize_resource_url('nltk:C:/dir/file') # doctest: +ELLIPSIS + Traceback (most recent call last): + ... + ValueError: Unsafe resource path: ... + >>> normalize_resource_url(r'nltk:C:\dir\file') # doctest: +ELLIPSIS + Traceback (most recent call last): + ... + ValueError: Unsafe resource path: ... + """ + try: + protocol, name = split_resource_url(resource_url) + except ValueError: + # No protocol → default to 'nltk:' + _reject_unsafe_no_protocol(resource_url) + protocol = "nltk" + name = resource_url + # If split_resource_url() inferred "file" from an input that *omitted* an explicit + # protocol (e.g., "C:/dir/file" or "C:\\dir\\file"), then treat it as a no-protocol + # input for security validation to prevent unsafe local path access. + if protocol == "file" and not resource_url.lower().startswith("file:"): + _reject_unsafe_no_protocol(resource_url) + + # ---------------------------------------------------------------------- + # Protocol-specific handling + # ---------------------------------------------------------------------- + + # Case 1: nltk: + if protocol == "nltk": + # If "nltk:" is used with an absolute path, treat it as "file://" + # Reject Windows drive-letter paths even when explicitly using the nltk: protocol. + # This prevents smuggling filesystem paths through nltk: URLs. + if re.match(r"^[A-Za-z]:[/\\]", name): + raise ValueError(f"Unsafe resource path: {resource_url!r}") + if os.path.isabs(name): + protocol = "file://" + name = normalize_resource_name(name, False, None) + else: + protocol = "nltk:" + name = normalize_resource_name(name, True) + + # Case 2: file: + elif protocol == "file": + protocol = "file://" + name = normalize_resource_name(name, False, None) + + # Case 3: External URLs (http, https, ftp, etc.) + else: + protocol += "://" + + return protocol + name + + +def normalize_resource_name(resource_name, allow_relative=True, relative_path=None): + """ + :type resource_name: str or unicode + :param resource_name: The name of the resource to search for. + Resource names are posix-style relative path names, such as + ``corpora/brown``. Directory names will automatically + be converted to a platform-appropriate path separator. + Directory trailing slashes are preserved + + >>> windows = sys.platform.startswith('win') + >>> normalize_resource_name('.', True) + './' + >>> normalize_resource_name('./', True) + './' + >>> windows or normalize_resource_name('dir/file', False, '/') == '/dir/file' + True + >>> not windows or normalize_resource_name('C:/file', False, '/') == '/C:/file' + True + >>> windows or normalize_resource_name('/dir/file', False, '/') == '/dir/file' + True + >>> windows or normalize_resource_name('../dir/file', False, '/') == '/dir/file' + True + >>> not windows or normalize_resource_name('/dir/file', True, '/') == 'dir/file' + True + >>> windows or normalize_resource_name('/dir/file', True, '/') == '/dir/file' + True + """ + is_dir = bool(re.search(r"[\\/.]$", resource_name)) or resource_name.endswith( + os.path.sep + ) + if sys.platform.startswith("win"): + resource_name = resource_name.lstrip("/") + else: + resource_name = re.sub(r"^/+", "/", resource_name) + if allow_relative: + resource_name = os.path.normpath(resource_name) + else: + if relative_path is None: + relative_path = os.curdir + resource_name = os.path.abspath(os.path.join(relative_path, resource_name)) + resource_name = resource_name.replace("\\", "/").replace(os.path.sep, "/") + if sys.platform.startswith("win") and os.path.isabs(resource_name): + resource_name = "/" + resource_name + if is_dir and not resource_name.endswith("/"): + resource_name += "/" + return resource_name + + +###################################################################### +# Path Pointers +###################################################################### + + +class PathPointer(metaclass=ABCMeta): + """ + An abstract base class for 'path pointers,' used by NLTK's data + package to identify specific paths. Two subclasses exist: + ``FileSystemPathPointer`` identifies a file that can be accessed + directly via a given absolute path. ``ZipFilePathPointer`` + identifies a file contained within a zipfile, that can be accessed + by reading that zipfile. + """ + + @abstractmethod + def open(self, encoding=None): + """ + Return a seekable read-only stream that can be used to read + the contents of the file identified by this path pointer. + + :raise IOError: If the path specified by this pointer does + not contain a readable file. + """ + + @abstractmethod + def file_size(self): + """ + Return the size of the file pointed to by this path pointer, + in bytes. + + :raise IOError: If the path specified by this pointer does + not contain a readable file. + """ + + @abstractmethod + def join(self, fileid): + """ + Return a new path pointer formed by starting at the path + identified by this pointer, and then following the relative + path given by ``fileid``. The path components of ``fileid`` + should be separated by forward slashes, regardless of + the underlying file system's path separator character. + """ + + +class FileSystemPathPointer(PathPointer, str): + """ + A path pointer that identifies a file which can be accessed + directly via a given absolute path. + """ + + def __init__(self, _path): + """ + Create a new path pointer for the given absolute path. + + :raise IOError: If the given path does not exist. + """ + + _path = os.path.abspath(_path) + if not os.path.exists(_path): + raise OSError("No such file or directory: %r" % _path) + self._path = _path + + # There's no need to call str.__init__(), since it's a no-op; + # str does all of its setup work in __new__. + + @property + def path(self): + """The absolute path identified by this path pointer.""" + return self._path + + def open(self, encoding=None): + """ + Secure open — prevents absolute direct access outside pointer root. + Path validation is enforced by pathsec.open() which checks the + resolved path against allowed NLTK data roots. + """ + stream = _secure_open(self._path, "rb") + if encoding is not None: + stream = SeekableUnicodeStreamReader(stream, encoding) + return stream + + def file_size(self): + return os.stat(self._path).st_size + + def join(self, fileid): + """ + Harden join() to prevent traversal & ensure corpus-root sandbox. + """ + fileid = str(fileid).replace("\\", "/") + + # Block ../ traversal + if ".." in fileid.split("/"): + raise ValueError(f"Traversal blocked: {fileid}") + + joined = os.path.normpath(os.path.join(self._path, fileid)) + root = os.path.normpath(self._path) + + # Enforce root boundary — must stay inside corpus root + if not (joined == root or joined.startswith(root + os.sep)): + raise ValueError(f"Escape outside root blocked: {joined}") + + return FileSystemPathPointer(joined) + + def __repr__(self): + return "FileSystemPathPointer(%r)" % self._path + + def __str__(self): + return self._path + + +@deprecated("Use gzip.GzipFile instead as it also uses a buffer.") +class BufferedGzipFile(GzipFile): + """A ``GzipFile`` subclass for compatibility with older nltk releases. + + Use ``GzipFile`` directly as it also buffers in all supported + Python versions. + """ + + def __init__( + self, filename=None, mode=None, compresslevel=9, fileobj=None, **kwargs + ): + """Return a buffered gzip file object.""" + GzipFile.__init__(self, filename, mode, compresslevel, fileobj) + + def write(self, data): + # This is identical to GzipFile.write but does not return + # the bytes written to retain compatibility. + super().write(data) + + +class GzipFileSystemPathPointer(FileSystemPathPointer): + """ + A subclass of ``FileSystemPathPointer`` that identifies a gzip-compressed + file located at a given absolute path. ``GzipFileSystemPathPointer`` is + appropriate for loading large gzip-compressed pickle objects efficiently. + """ + + def open(self, encoding=None): + stream = GzipFile(self._path, "rb") + if encoding: + stream = SeekableUnicodeStreamReader(stream, encoding) + return stream + + +class ZipFilePathPointer(PathPointer): + """ + A path pointer that identifies a file contained within a zipfile, + which can be accessed by reading that zipfile. + """ + + def __init__(self, zipfile, entry=""): + """ + Create a new path pointer pointing at the specified entry + in the given zipfile. + + :raise IOError: If the given zipfile does not exist, or if it + does not contain the specified entry. + """ + if isinstance(zipfile, str): + zipfile = OpenOnDemandZipFile(os.path.abspath(zipfile)) + + # Check that the entry exists: + if entry: + # Normalize the entry string, it should be relative: + entry = normalize_resource_name(entry, True, "/").lstrip("/") + + try: + zipfile.getinfo(entry) + except Exception as e: + # Sometimes directories aren't explicitly listed in + # the zip file. So if `entry` is a directory name, + # then check if the zipfile contains any files that + # are under the given directory. + if entry.endswith("/") and [ + n for n in zipfile.namelist() if n.startswith(entry) + ]: + pass # zipfile contains a file in that directory. + else: + # Otherwise, complain. + raise OSError( + f"Zipfile {zipfile.filename!r} does not contain {entry!r}" + ) from e + self._zipfile = zipfile + self._entry = entry + + @property + def zipfile(self): + """ + The ZipFile object used to access the zip file + containing the entry identified by this path pointer. + """ + return self._zipfile + + @property + def entry(self): + """ + The name of the file within zipfile that this path + pointer points to. + """ + return self._entry + + def open(self, encoding=None): + data = self._zipfile.read(self._entry) + stream = BytesIO(data) + if self._entry.endswith(".gz"): + stream = GzipFile(self._entry, fileobj=stream) + elif encoding is not None: + stream = SeekableUnicodeStreamReader(stream, encoding) + return stream + + def file_size(self): + return self._zipfile.getinfo(self._entry).file_size + + def join(self, fileid): + entry = f"{self._entry}/{fileid}" + return ZipFilePathPointer(self._zipfile, entry) + + def __repr__(self): + return f"ZipFilePathPointer({self._zipfile.filename!r}, {self._entry!r})" + + def __str__(self): + return os.path.normpath(os.path.join(self._zipfile.filename, self._entry)) + + +###################################################################### +# Access Functions +###################################################################### + +# Don't use a weak dictionary, because in the common case this +# causes a lot more reloading that necessary. +_resource_cache = {} +"""A dictionary used to cache resources so that they won't + need to be loaded more than once.""" + + +def open_datafile(path, file_name="", encoding="utf-8"): + """ + Open a data file using a PathPointer, supporting both filesystem and zip file paths. + + The function can be used in two ways: + + 1. `path` is a PathPointer to a directory, and `file_name` is the name of a file + within that directory. + 2. `path` is a PathPointer to a file, and `file_name` is left empty. + + :param path: A PathPointer (e.g. FileSystemPathPointer or ZipFilePathPointer) + representing either the file to open (when file_name is empty), or the + directory containing the file. + :type path: PathPointer + :param file_name: The name of the file to open within the directory. Leave empty + if `path` already points to the file. + :type file_name: str + :param encoding: The character encoding to use when opening the file. If None, + a binary stream is returned. + :type encoding: str or None + :return: A file-like object (binary stream if encoding is None, otherwise a text + stream with the specified encoding). + :rtype: file-like + """ + if file_name: + # Use .join() to reach the file regardless of zip/real FS. + path = path.join(file_name) + return path.open(encoding=encoding) + + +def find(resource_name, paths=None): + """ + Find the given resource by searching through the directories and + zip files in paths, where a None or empty string specifies an absolute path. + Returns a corresponding path name. If the given resource is not + found, raise a ``LookupError``, whose message gives a pointer to + the installation instructions for the NLTK downloader. + + Zip File Handling: + + - If ``resource_name`` contains a component with a ``.zip`` + extension, then it is assumed to be a zipfile; and the + remaining path components are used to look inside the zipfile. + + - If any element of ``nltk.data.path`` has a ``.zip`` extension, + then it is assumed to be a zipfile. + + - If a given resource name that does not contain any zipfile + component is not found initially, then ``find()`` will make a + second attempt to find that resource, by replacing each + component *p* in the path with *p.zip/p*. For example, this + allows ``find()`` to map the resource name + ``corpora/chat80/cities.pl`` to a zip file path pointer to + ``corpora/chat80.zip/chat80/cities.pl``. + + - When using ``find()`` to locate a directory contained in a + zipfile, the resource name must end with the forward slash + character. Otherwise, ``find()`` will not locate the + directory. + + :type resource_name: str or unicode + :param resource_name: The name of the resource to search for. + Resource names are posix-style relative path names, such as + ``corpora/brown``. Directory names will be + automatically converted to a platform-appropriate path separator. + :rtype: str + """ + resource_name = normalize_resource_name(resource_name, True) + # Defense-in-depth: reject traversal/absolute paths even if caller bypassed normalize_resource_url() + # Use search() so traversal components anywhere in the resource_name trigger rejection. + if _UNSAFE_NO_PROTOCOL_RE.search(resource_name): + raise ValueError(f"Unsafe resource path: {resource_name!r}") + + # Resolve default paths at runtime in-case the user overrides + # nltk.data.path + if paths is None: + paths = path + + # Check if the resource name includes a zipfile name + m = re.match(r"(.*?\.zip)/?(.*)$", resource_name) + if m: + zipfile, zipentry = m.groups() + else: + zipfile = None + + # Evidence that the *package* exists but the specific entry does not. + _package_present_but_entry_missing = [] + + def _note_near_miss(where): + if where not in _package_present_but_entry_missing: + _package_present_but_entry_missing.append(where) + + # Check each item in our path + for path_ in paths: + # Is the path item a zipfile? + if path_ and (os.path.isfile(path_) and path_.endswith(".zip")): + try: + return ZipFilePathPointer(path_, resource_name) + except OSError: + # resource not in zipfile + _note_near_miss(path_) + continue + + # Is the path item a directory or is resource_name an absolute path? + elif not path_ or os.path.isdir(path_): + if zipfile is None: + p = os.path.join(path_, url2pathname(resource_name)) + if os.path.exists(p): + if p.endswith(".gz"): + return GzipFileSystemPathPointer(p) + else: + return FileSystemPathPointer(p) + else: + # If the package exists (either as a directory or as a .zip) + # but the specific requested file doesn't, record a "near miss" + # so the eventual LookupError isn't misleading. + parts = [p for p in resource_name.split("/") if p] + # Only record a "near miss" when there is a sub-entry *within* a + # package (i.e. more than two meaningful path components), so we + # don't misclassify requests for the package root itself. + if len(parts) > 2: + pkg = "/".join(parts[:2]) # e.g. "corpora/stopwords" + pkg_dir = os.path.join(path_, url2pathname(pkg)) + pkg_zip = os.path.join(path_, url2pathname(pkg + ".zip")) + if os.path.isdir(pkg_dir): + _note_near_miss(pkg_dir) + elif os.path.isfile(pkg_zip): + _note_near_miss(pkg_zip) + else: + p = os.path.join(path_, url2pathname(zipfile)) + if os.path.exists(p): + try: + return ZipFilePathPointer(p, zipentry) + except OSError: + # resource not in zipfile + _note_near_miss(p) + continue + + # Fallback: if the path doesn't include a zip file, then try + # again, assuming that one of the path components is inside a + # zipfile of the same name. + if zipfile is None: + pieces = resource_name.split("/") + for i in range(len(pieces)): + modified_name = "/".join(pieces[:i] + [pieces[i] + ".zip"] + pieces[i:]) + try: + return find(modified_name, paths) + except LookupError: + pass + + # Identify the package (i.e. the .zip file) to download. + parts = resource_name.split("/") + resource_zipname = parts[1] if len(parts) > 1 else parts[0] + if resource_zipname.endswith(".zip"): + resource_zipname = resource_zipname.rpartition(".")[0] + + # Display a friendly error message if the resource wasn't found. + # If the package appears present but the specific entry is missing, keep + # the download hint as a secondary suggestion. + if _package_present_but_entry_missing: + msg = ( + f"Resource entry '{resource_name}' not found in installed package " + f"'{resource_zipname}'.\n" + "The package appears to be installed, but the requested file is missing.\n" + "\n" + "If you believe the package is corrupted or out of date, you can try " + "re-downloading it with the NLTK Downloader:\n\n" + ">>> import nltk\n" + f">>> nltk.download('{resource_zipname}')\n" + ) + else: + msg = ( + f"Resource '{resource_zipname}' not found.\n" + "Please use the NLTK Downloader to obtain the resource:\n\n" + ">>> import nltk\n" + f">>> nltk.download('{resource_zipname}')\n" + ) + msg = textwrap_indent(msg) + + msg += "\n For more information see: https://www.nltk.org/data.html\n" + + msg += f"\n Attempted to load '{resource_name}'\n" + + if _package_present_but_entry_missing: + msg += "\n Package was found in:" + "".join( + "\n - %r" % d for d in _package_present_but_entry_missing + ) + + msg += "\n Searched in:" + "".join("\n - %r" % d for d in paths) + sep = "*" * 70 + resource_not_found = f"\n{sep}\n{msg}\n{sep}\n" + raise LookupError(resource_not_found) + + +def retrieve(resource_url, filename=None, verbose=True): + """ + Copy the given resource to a local file. If no filename is + specified, then use the URL's filename. If there is already a + file named ``filename``, then raise a ``ValueError``. + + :type resource_url: str + :param resource_url: A URL specifying where the resource should be + loaded from. The default protocol is "nltk:", which searches + for the file in the the NLTK data package. + """ + resource_url = normalize_resource_url(resource_url) + if filename is None: + if resource_url.startswith("file:"): + filename = os.path.split(resource_url)[-1] + else: + filename = re.sub(r"(^\w+:)?.*/", "", resource_url) + if os.path.exists(filename): + filename = os.path.abspath(filename) + raise ValueError("File %r already exists!" % filename) + + if verbose: + print(f"Retrieving {resource_url!r}, saving to {filename!r}") + + # Open the input & output streams. + infile = _open(resource_url) + + # Copy infile -> outfile, using 64k blocks. + with open(filename, "wb") as outfile: + while True: + s = infile.read(1024 * 64) # 64k blocks. + outfile.write(s) + if not s: + break + + infile.close() + + +#: A dictionary describing the formats that are supported by NLTK's +#: load() method. Keys are format names, and values are format +#: descriptions. +FORMATS = { + "pickle": "A serialized python object, stored using the pickle module.", + "json": "A serialized python object, stored using the json module.", + "yaml": "A serialized python object, stored using the yaml module.", + "cfg": "A context free grammar.", + "pcfg": "A probabilistic CFG.", + "fcfg": "A feature CFG.", + "fol": "A list of first order logic expressions, parsed with " + "nltk.sem.logic.Expression.fromstring.", + "logic": "A list of first order logic expressions, parsed with " + "nltk.sem.logic.LogicParser. Requires an additional logic_parser " + "parameter", + "val": "A semantic valuation, parsed by nltk.sem.Valuation.fromstring.", + "raw": "The raw (byte string) contents of a file.", + "text": "The raw (unicode string) contents of a file. ", +} + +#: A dictionary mapping from file extensions to format names, used +#: by load() when format="auto" to decide the format for a +#: given resource url. +AUTO_FORMATS = { + "pickle": "pickle", + "json": "json", + "yaml": "yaml", + "cfg": "cfg", + "pcfg": "pcfg", + "fcfg": "fcfg", + "fol": "fol", + "logic": "logic", + "val": "val", + "txt": "text", + "text": "text", +} + + +def restricted_pickle_load(string): + """ + Prevents any class or function from loading. + """ + from nltk.picklesec import RestrictedUnpickler + + return RestrictedUnpickler(BytesIO(string)).load() + + +def switch_punkt(lang="english"): + """ + Return a pickle-free Punkt tokenizer instead of loading a pickle. + + >>> import nltk + >>> tokenizer = nltk.data.load('tokenizers/punkt/english.pickle') + >>> print(tokenizer.tokenize("Hello! How are you?")) + ['Hello!', 'How are you?'] + """ + from nltk.tokenize import PunktTokenizer as tok + + return tok(lang) + + +def switch_chunker(fmt="multiclass"): + """ + Return a pickle-free Named Entity Chunker instead of loading a pickle. + + >>> import nltk + >>> from nltk.corpus import treebank + >>> from pprint import pprint + >>> chunker = nltk.data.load('chunkers/maxent_ne_chunker/PY3/english_ace_multiclass.pickle') + >>> pprint(chunker.parse(treebank.tagged_sents()[2][8:14])) # doctest: +NORMALIZE_WHITESPACE + Tree('S', [('chairman', 'NN'), ('of', 'IN'), Tree('ORGANIZATION', [('Consolidated', 'NNP'), ('Gold', 'NNP'), ('Fields', 'NNP')]), ('PLC', 'NNP')]) + + """ + from nltk.chunk import ne_chunker + + return ne_chunker(fmt) + + +def switch_t_tagger(): + """ + Return a pickle-free Treebank Pos Tagger instead of loading a pickle. + + >>> import nltk + >>> from nltk.tokenize import word_tokenize + >>> tagger = nltk.data.load('taggers/maxent_treebank_pos_tagger/PY3/english.pickle') + >>> print(tagger.tag(word_tokenize("Hello, how are you?"))) + [('Hello', 'NNP'), (',', ','), ('how', 'WRB'), ('are', 'VBP'), ('you', 'PRP'), ('?', '.')] + + """ + from nltk.classify.maxent import maxent_pos_tagger + + return maxent_pos_tagger() + + +def switch_p_tagger(lang): + """ + Return a pickle-free Averaged Perceptron Tagger instead of loading a pickle. + + >>> import nltk + >>> from nltk.tokenize import word_tokenize + >>> tagger = nltk.data.load('taggers/averaged_perceptron_tagger/averaged_perceptron_tagger.pickle') + >>> print(tagger.tag(word_tokenize("Hello, how are you?"))) + [('Hello', 'NNP'), (',', ','), ('how', 'WRB'), ('are', 'VBP'), ('you', 'PRP'), ('?', '.')] + + """ + from nltk.tag import _get_tagger + + if lang == "ru": + lang = "rus" + else: + lang = None + return _get_tagger(lang) + + +def load( + resource_url, + format="auto", + cache=True, + verbose=False, + logic_parser=None, + fstruct_reader=None, + encoding=None, +): + """ + Load a given resource from the NLTK data package. The following + resource formats are currently supported: + + - ``pickle`` + - ``json`` + - ``yaml`` + - ``cfg`` (context free grammars) + - ``pcfg`` (probabilistic CFGs) + - ``fcfg`` (feature-based CFGs) + - ``fol`` (formulas of First Order Logic) + - ``logic`` (Logical formulas to be parsed by the given logic_parser) + - ``val`` (valuation of First Order Logic model) + - ``text`` (the file contents as a unicode string) + - ``raw`` (the raw file contents as a byte string) + + If no format is specified, ``load()`` will attempt to determine a + format based on the resource name's file extension. If that + fails, ``load()`` will raise a ``ValueError`` exception. + + For all text formats (everything except ``pickle``, ``json``, ``yaml`` and ``raw``), + it tries to decode the raw contents using UTF-8, and if that doesn't + work, it tries with ISO-8859-1 (Latin-1), unless the ``encoding`` + is specified. + + :type resource_url: str + :param resource_url: A URL specifying where the resource should be + loaded from. The default protocol is "nltk:", which searches + for the file in the the NLTK data package. + :type cache: bool + :param cache: If true, add this resource to a cache. If load() + finds a resource in its cache, then it will return it from the + cache rather than loading it. + :type verbose: bool + :param verbose: If true, print a message when loading a resource. + Messages are not displayed when a resource is retrieved from + the cache. + :type logic_parser: LogicParser + :param logic_parser: The parser that will be used to parse logical + expressions. + :type fstruct_reader: FeatStructReader + :param fstruct_reader: The parser that will be used to parse the + feature structure of an fcfg. + :type encoding: str + :param encoding: the encoding of the input; only used for text formats. + """ + resource_url = normalize_resource_url(resource_url) + + # Determine the format of the resource. + if format == "auto": + resource_url_parts = resource_url.split(".") + ext = resource_url_parts[-1] + if ext == "gz": + ext = resource_url_parts[-2] + format = AUTO_FORMATS.get(ext) + if format is None: + raise ValueError( + "Could not determine format for %s based " + 'on its file\nextension; use the "format" ' + "argument to specify the format explicitly." % resource_url + ) + + if format not in FORMATS: + raise ValueError(f"Unknown format type: {format}!") + + # If we've cached the resource, then just return it. + if cache: + resource_val = _resource_cache.get((resource_url, format)) + if resource_val is not None: + if verbose: + print(f"<>") + return resource_val + + protocol, path_ = split_resource_url(resource_url) + + if path_[-7:] == ".pickle": + if verbose: + print(f"<>") + fil = os.path.split(path_[:-7])[-1] + if path_.startswith("tokenizers/punkt"): + return switch_punkt(fil) + elif path_.startswith("chunkers/maxent_ne_chunker"): + return switch_chunker(fil.split("_")[-1]) + elif path_.startswith("taggers/maxent_treebank_pos_tagger"): + return switch_t_tagger() + elif path_.startswith("taggers/averaged_perceptron_tagger"): + return switch_p_tagger(fil.split("_")[-1]) + + # Let the user know what's going on. + if verbose: + print(f"<>") + + # Load the resource. + opened_resource = _open(resource_url) + + if format == "raw": + resource_val = opened_resource.read() + elif format == "pickle": + resource_val = restricted_pickle_load(opened_resource.read()) + elif format == "json": + import json + + from nltk.jsontags import json_tags + + resource_val = json.load(opened_resource) + tag = None + if len(resource_val) != 1: + tag = next(resource_val.keys()) + if tag not in json_tags: + raise ValueError("Unknown json tag.") + elif format == "yaml": + import yaml + + resource_val = yaml.safe_load(opened_resource) + else: + # The resource is a text format. + binary_data = opened_resource.read() + if encoding is not None: + string_data = binary_data.decode(encoding) + else: + try: + string_data = binary_data.decode("utf-8") + except UnicodeDecodeError: + string_data = binary_data.decode("latin-1") + if format == "text": + resource_val = string_data + elif format == "cfg": + resource_val = grammar.CFG.fromstring(string_data, encoding=encoding) + elif format == "pcfg": + resource_val = grammar.PCFG.fromstring(string_data, encoding=encoding) + elif format == "fcfg": + resource_val = grammar.FeatureGrammar.fromstring( + string_data, + logic_parser=logic_parser, + fstruct_reader=fstruct_reader, + encoding=encoding, + ) + elif format == "fol": + resource_val = sem.read_logic( + string_data, + logic_parser=sem.logic.LogicParser(), + encoding=encoding, + ) + elif format == "logic": + resource_val = sem.read_logic( + string_data, logic_parser=logic_parser, encoding=encoding + ) + elif format == "val": + resource_val = sem.read_valuation(string_data, encoding=encoding) + else: + raise AssertionError( + "Internal NLTK error: Format %s isn't " + "handled by nltk.data.load()" % (format,) + ) + + opened_resource.close() + + # If requested, add it to the cache. + if cache: + try: + _resource_cache[(resource_url, format)] = resource_val + # TODO: add this line + # print('<>' % (resource_url,)) + except TypeError: + # We can't create weak references to some object types, like + # strings and tuples. For now, just don't cache them. + pass + + return resource_val + + +def show_cfg(resource_url, escape="##"): + """ + Write out a grammar file, ignoring escaped and empty lines. + + :type resource_url: str + :param resource_url: A URL specifying where the resource should be + loaded from. The default protocol is "nltk:", which searches + for the file in the the NLTK data package. + :type escape: str + :param escape: Prepended string that signals lines to be ignored + """ + resource_url = normalize_resource_url(resource_url) + resource_val = load(resource_url, format="text", cache=False) + lines = resource_val.splitlines() + for l in lines: + if l.startswith(escape): + continue + if re.match("^$", l): + continue + print(l) + + +def clear_cache(): + """ + Remove all objects from the resource cache. + :see: load() + """ + _resource_cache.clear() + + +def _open(resource_url): + """ + Helper function that returns an open file object for a resource, + given its resource URL. If the given resource URL uses the "nltk:" + protocol, or uses no protocol, then use ``nltk.data.find`` to find + its path, and open it with the given mode; if the resource URL + uses the 'file' protocol, then open the file with the given mode; + otherwise, delegate to ``urllib2.urlopen``. + + :type resource_url: str + :param resource_url: A URL specifying where the resource should be + loaded from. The default protocol is "nltk:", which searches + for the file in the the NLTK data package. + """ + # Restore "no protocol" handling for internal resilience + resource_url = str(resource_url) + if ":" not in resource_url: + resource_url = "nltk:" + resource_url + + protocol, path_ = resource_url.split(":", 1) + + if protocol == "nltk": + # If find() or .open() raises a ValueError (security) or LookupError, + # let it bubble up or handle it based on load() logic. + return find(path_).open() + elif protocol == "file": + local_path = url2pathname(path_) + try: + # 1. Attempt to use NLTK's standard search paths (Safe/Normalized) + return find(local_path).open() + except (LookupError, ValueError): + # 2. Fallback for absolute paths (e.g., file:///etc/passwd) + # This ensures even direct file access hits the pathsec sentinel. + return _secure_open(local_path, "rb") + else: + # Network protocols (http, https, ftp) + return _secure_urlopen(resource_url) + + +###################################################################### +# Lazy Resource Loader +###################################################################### + + +class LazyLoader: + + def __init__(self, _path): + self._path = _path + + def __load(self): + resource = load(self._path) + # This is where the magic happens! Transform ourselves into + # the object by modifying our own __dict__ and __class__ to + # match that of `resource`. + self.__dict__ = resource.__dict__ + self.__class__ = resource.__class__ + + def __getattr__(self, attr): + self.__load() + # This looks circular, but its not, since __load() changes our + # __class__ to something new: + return getattr(self, attr) + + def __repr__(self): + self.__load() + # This looks circular, but its not, since __load() changes our + # __class__ to something new: + return repr(self) + + +###################################################################### +# Open-On-Demand ZipFile +###################################################################### + + +class OpenOnDemandZipFile(ZipFile): + """ + A subclass of ``ZipFile`` that closes its file pointer + whenever it is not using it; and re-opens it when it needs to read + data from the zipfile. This is useful for reducing the number of + open file handles when many zip files are being accessed at once. + ``OpenOnDemandZipFile`` must be constructed from a filename, not a + file-like object (to allow re-opening). ``OpenOnDemandZipFile`` is + read-only (i.e. ``write()`` and ``writestr()`` are disabled. + """ + + def __init__(self, filename): + if not isinstance(filename, str): + raise TypeError("ReopenableZipFile filename must be a string") + ZipFile.__init__(self, filename) + assert self.filename == filename + self.close() + # After closing a ZipFile object, the _fileRefCnt needs to be cleared + # for Python2and3 compatible code. + self._fileRefCnt = 0 + + def read(self, name): + assert self.fp is None + # This will be validated by pathsec.open + self.fp = _secure_open(self.filename, "rb") + value = zipfile.ZipFile.read(self, name) + self.fp.close() + self.fp = None + return value + + def write(self, *args, **kwargs): + """:raise NotImplementedError: OpenOnDemandZipfile is read-only""" + raise NotImplementedError("OpenOnDemandZipfile is read-only") + + def writestr(self, *args, **kwargs): + """:raise NotImplementedError: OpenOnDemandZipfile is read-only""" + raise NotImplementedError("OpenOnDemandZipfile is read-only") + + def __repr__(self): + return repr("OpenOnDemandZipFile(%r)" % self.filename) + + +###################################################################### +# Seekable Unicode Stream Reader +###################################################################### + + +class SeekableUnicodeStreamReader: + """ + A stream reader that automatically encodes the source byte stream + into unicode (like ``codecs.StreamReader``); but still supports the + ``seek()`` and ``tell()`` operations correctly. This is in contrast + to ``codecs.StreamReader``, which provide *broken* ``seek()`` and + ``tell()`` methods. + + This class was motivated by ``StreamBackedCorpusView``, which + makes extensive use of ``seek()`` and ``tell()``, and needs to be + able to handle unicode-encoded files. + + Note: this class requires stateless decoders. To my knowledge, + this shouldn't cause a problem with any of python's builtin + unicode encodings. + """ + + DEBUG = True # : If true, then perform extra sanity checks. + + def __init__(self, stream, encoding, errors="strict"): + # Rewind the stream to its beginning. + stream.seek(0) + + self.stream = stream + """The underlying stream.""" + + self.encoding = encoding + """The name of the encoding that should be used to encode the + underlying stream.""" + + self.errors = errors + """The error mode that should be used when decoding data from + the underlying stream. Can be 'strict', 'ignore', or + 'replace'.""" + + self.decode = codecs.getdecoder(encoding) + """The function that is used to decode byte strings into + unicode strings.""" + + self.bytebuffer = b"" + """A buffer to use bytes that have been read but have not yet + been decoded. This is only used when the final bytes from + a read do not form a complete encoding for a character.""" + + self.linebuffer = None + """A buffer used by ``readline()`` to hold characters that have + been read, but have not yet been returned by ``read()`` or + ``readline()``. This buffer consists of a list of unicode + strings, where each string corresponds to a single line. + The final element of the list may or may not be a complete + line. Note that the existence of a linebuffer makes the + ``tell()`` operation more complex, because it must backtrack + to the beginning of the buffer to determine the correct + file position in the underlying byte stream.""" + + self._rewind_checkpoint = 0 + """The file position at which the most recent read on the + underlying stream began. This is used, together with + ``_rewind_numchars``, to backtrack to the beginning of + ``linebuffer`` (which is required by ``tell()``).""" + + self._rewind_numchars = None + """The number of characters that have been returned since the + read that started at ``_rewind_checkpoint``. This is used, + together with ``_rewind_checkpoint``, to backtrack to the + beginning of ``linebuffer`` (which is required by ``tell()``).""" + + self._bom = self._check_bom() + """The length of the byte order marker at the beginning of + the stream (or None for no byte order marker).""" + + # ///////////////////////////////////////////////////////////////// + # Read methods + # ///////////////////////////////////////////////////////////////// + + def read(self, size=None): + """ + Read up to ``size`` bytes, decode them using this reader's + encoding, and return the resulting unicode string. + + :param size: The maximum number of bytes to read. If not + specified, then read as many bytes as possible. + :type size: int + :rtype: unicode + """ + chars = self._read(size) + + # If linebuffer is not empty, then include it in the result + if self.linebuffer: + chars = "".join(self.linebuffer) + chars + self.linebuffer = None + self._rewind_numchars = None + + return chars + + def discard_line(self): + if self.linebuffer and len(self.linebuffer) > 1: + line = self.linebuffer.pop(0) + self._rewind_numchars += len(line) + else: + self.stream.readline() + + def readline(self, size=None): + """ + Read a line of text, decode it using this reader's encoding, + and return the resulting unicode string. + + :param size: The maximum number of bytes to read. If no + newline is encountered before ``size`` bytes have been read, + then the returned value may not be a complete line of text. + :type size: int + """ + # If we have a non-empty linebuffer, then return the first + # line from it. (Note that the last element of linebuffer may + # not be a complete line; so let _read() deal with it.) + if self.linebuffer and len(self.linebuffer) > 1: + line = self.linebuffer.pop(0) + self._rewind_numchars += len(line) + return line + + readsize = size or 72 + chars = "" + + # If there's a remaining incomplete line in the buffer, add it. + if self.linebuffer: + chars += self.linebuffer.pop() + self.linebuffer = None + + while True: + startpos = self.stream.tell() - len(self.bytebuffer) + new_chars = self._read(readsize) + + # If we're at a '\r', then read one extra character, since + # it might be a '\n', to get the proper line ending. + if new_chars and new_chars.endswith("\r"): + new_chars += self._read(1) + + chars += new_chars + lines = chars.splitlines(True) + if len(lines) > 1: + line = lines[0] + self.linebuffer = lines[1:] + self._rewind_numchars = len(new_chars) - (len(chars) - len(line)) + self._rewind_checkpoint = startpos + break + elif len(lines) == 1: + line0withend = lines[0] + line0withoutend = lines[0].splitlines(False)[0] + if line0withend != line0withoutend: # complete line + line = line0withend + break + + if not new_chars or size is not None: + line = chars + break + + # Read successively larger blocks of text. + if readsize < 8000: + readsize *= 2 + + return line + + def readlines(self, sizehint=None, keepends=True): + """ + Read this file's contents, decode them using this reader's + encoding, and return it as a list of unicode lines. + + :rtype: list(unicode) + :param sizehint: Ignored. + :param keepends: If false, then strip newlines. + """ + return self.read().splitlines(keepends) + + def next(self): + """Return the next decoded line from the underlying stream.""" + line = self.readline() + if line: + return line + else: + raise StopIteration + + def __next__(self): + return self.next() + + def __iter__(self): + """Return self""" + return self + + def __del__(self): + # let garbage collector deal with still opened streams + if not self.closed: + self.close() + + def __enter__(self): + return self + + def __exit__(self, type, value, traceback): + self.close() + + def xreadlines(self): + """Return self""" + return self + + # ///////////////////////////////////////////////////////////////// + # Pass-through methods & properties + # ///////////////////////////////////////////////////////////////// + + @property + def closed(self): + """True if the underlying stream is closed.""" + return self.stream.closed + + @property + def name(self): + """The name of the underlying stream.""" + return self.stream.name + + @property + def mode(self): + """The mode of the underlying stream.""" + return self.stream.mode + + def close(self): + """ + Close the underlying stream. + """ + self.stream.close() + + # ///////////////////////////////////////////////////////////////// + # Seek and tell + # ///////////////////////////////////////////////////////////////// + + def seek(self, offset, whence=0): + """ + Move the stream to a new file position. If the reader is + maintaining any buffers, then they will be cleared. + + :param offset: A byte count offset. + :param whence: If 0, then the offset is from the start of the file + (offset should be positive), if 1, then the offset is from the + current position (offset may be positive or negative); and if 2, + then the offset is from the end of the file (offset should + typically be negative). + """ + if whence == 1: + raise ValueError( + "Relative seek is not supported for " + "SeekableUnicodeStreamReader -- consider " + "using char_seek_forward() instead." + ) + self.stream.seek(offset, whence) + self.linebuffer = None + self.bytebuffer = b"" + self._rewind_numchars = None + self._rewind_checkpoint = self.stream.tell() + + def char_seek_forward(self, offset): + """ + Move the read pointer forward by ``offset`` characters. + """ + if offset < 0: + raise ValueError("Negative offsets are not supported") + # Clear all buffers. + self.seek(self.tell()) + # Perform the seek operation. + self._char_seek_forward(offset) + + def _char_seek_forward(self, offset, est_bytes=None): + """ + Move the file position forward by ``offset`` characters, + ignoring all buffers. + + :param est_bytes: A hint, giving an estimate of the number of + bytes that will be needed to move forward by ``offset`` chars. + Defaults to ``offset``. + """ + if est_bytes is None: + est_bytes = offset + bytes = b"" + + while True: + # Read in a block of bytes. + newbytes = self.stream.read(est_bytes - len(bytes)) + bytes += newbytes + + # Decode the bytes to characters. + chars, bytes_decoded = self._incr_decode(bytes) + + # If we got the right number of characters, then seek + # backwards over any truncated characters, and return. + if len(chars) == offset: + self.stream.seek(-len(bytes) + bytes_decoded, 1) + return + + # If we went too far, then we can back-up until we get it + # right, using the bytes we've already read. + if len(chars) > offset: + while len(chars) > offset: + # Assume at least one byte/char. + est_bytes += offset - len(chars) + chars, bytes_decoded = self._incr_decode(bytes[:est_bytes]) + self.stream.seek(-len(bytes) + bytes_decoded, 1) + return + + # Otherwise, we haven't read enough bytes yet; loop again. + est_bytes += offset - len(chars) + + def tell(self): + """ + Return the current file position on the underlying byte + stream. If this reader is maintaining any buffers, then the + returned file position will be the position of the beginning + of those buffers. + """ + # If nothing's buffered, then just return our current filepos: + if self.linebuffer is None: + return self.stream.tell() - len(self.bytebuffer) + + # Otherwise, we'll need to backtrack the filepos until we + # reach the beginning of the buffer. + + # Store our original file position, so we can return here. + orig_filepos = self.stream.tell() + + # Calculate an estimate of where we think the newline is. + bytes_read = (orig_filepos - len(self.bytebuffer)) - self._rewind_checkpoint + buf_size = sum(len(line) for line in self.linebuffer) + est_bytes = int( + bytes_read * self._rewind_numchars / (self._rewind_numchars + buf_size) + ) + + self.stream.seek(self._rewind_checkpoint) + self._char_seek_forward(self._rewind_numchars, est_bytes) + filepos = self.stream.tell() + + # Sanity check + if self.DEBUG: + self.stream.seek(filepos) + check1 = self._incr_decode(self.stream.read(50))[0] + check2 = "".join(self.linebuffer) + assert check1.startswith(check2) or check2.startswith(check1) + + # Return to our original filepos (so we don't have to throw + # out our buffer.) + self.stream.seek(orig_filepos) + + # Return the calculated filepos + return filepos + + # ///////////////////////////////////////////////////////////////// + # Helper methods + # ///////////////////////////////////////////////////////////////// + + def _read(self, size=None): + """ + Read up to ``size`` bytes from the underlying stream, decode + them using this reader's encoding, and return the resulting + unicode string. ``linebuffer`` is not included in the result. + """ + if size == 0: + return "" + + # Skip past the byte order marker, if present. + if self._bom and self.stream.tell() == 0: + self.stream.read(self._bom) + + # Read the requested number of bytes. + if size is None: + new_bytes = self.stream.read() + else: + new_bytes = self.stream.read(size) + bytes = self.bytebuffer + new_bytes + + # Decode the bytes into unicode characters + chars, bytes_decoded = self._incr_decode(bytes) + + # If we got bytes but couldn't decode any, then read further. + if (size is not None) and (not chars) and (len(new_bytes) > 0): + while not chars: + new_bytes = self.stream.read(1) + if not new_bytes: + break # end of file. + bytes += new_bytes + chars, bytes_decoded = self._incr_decode(bytes) + + # Record any bytes we didn't consume. + self.bytebuffer = bytes[bytes_decoded:] + + # Return the result + return chars + + def _incr_decode(self, bytes): + """ + Decode the given byte string into a unicode string, using this + reader's encoding. If an exception is encountered that + appears to be caused by a truncation error, then just decode + the byte string without the bytes that cause the trunctaion + error. + + Return a tuple ``(chars, num_consumed)``, where ``chars`` is + the decoded unicode string, and ``num_consumed`` is the + number of bytes that were consumed. + """ + while True: + try: + return self.decode(bytes, "strict") + except UnicodeDecodeError as exc: + # If the exception occurs at the end of the string, + # then assume that it's a truncation error. + if exc.end == len(bytes): + return self.decode(bytes[: exc.start], self.errors) + + # Otherwise, if we're being strict, then raise it. + elif self.errors == "strict": + raise + + # If we're not strict, then re-process it with our + # errors setting. This *may* raise an exception. + else: + return self.decode(bytes, self.errors) + + _BOM_TABLE = { + "utf8": [(codecs.BOM_UTF8, None)], + "utf16": [(codecs.BOM_UTF16_LE, "utf16-le"), (codecs.BOM_UTF16_BE, "utf16-be")], + "utf16le": [(codecs.BOM_UTF16_LE, None)], + "utf16be": [(codecs.BOM_UTF16_BE, None)], + "utf32": [(codecs.BOM_UTF32_LE, "utf32-le"), (codecs.BOM_UTF32_BE, "utf32-be")], + "utf32le": [(codecs.BOM_UTF32_LE, None)], + "utf32be": [(codecs.BOM_UTF32_BE, None)], + } + + def _check_bom(self): + # Normalize our encoding name + enc = re.sub("[ -]", "", self.encoding.lower()) + + # Look up our encoding in the BOM table. + bom_info = self._BOM_TABLE.get(enc) + + if bom_info: + # Read a prefix, to check against the BOM(s) + bytes = self.stream.read(16) + self.stream.seek(0) + + # Check for each possible BOM. + for bom, new_encoding in bom_info: + if bytes.startswith(bom): + if new_encoding: + self.encoding = new_encoding + return len(bom) + + return None + + +__all__ = [ + "path", + "PathPointer", + "FileSystemPathPointer", + "BufferedGzipFile", + "GzipFileSystemPathPointer", + "GzipFileSystemPathPointer", + "find", + "retrieve", + "FORMATS", + "AUTO_FORMATS", + "load", + "show_cfg", + "clear_cache", + "LazyLoader", + "OpenOnDemandZipFile", + "GzipFileSystemPathPointer", + "SeekableUnicodeStreamReader", +] diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/decorators.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/decorators.py new file mode 100644 index 0000000000000000000000000000000000000000..aa171103d4ee00f2b5ce27574225312b67daefb8 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/decorators.py @@ -0,0 +1,251 @@ +""" +Decorator module by Michele Simionato +Copyright Michele Simionato, distributed under the terms of the BSD License (see below). +http://www.phyast.pitt.edu/~micheles/python/documentation.html + +Included in NLTK for its support of a nice memoization decorator. +""" + +__docformat__ = "restructuredtext en" + +## The basic trick is to generate the source code for the decorated function +## with the right signature and to evaluate it. +## Uncomment the statement 'print >> sys.stderr, func_src' in _decorator +## to understand what is going on. + +__all__ = ["decorator", "new_wrapper", "getinfo"] + +import sys + +# Hack to keep NLTK's "tokenize" module from colliding with the "tokenize" in +# the Python standard library. +OLD_SYS_PATH = sys.path[:] +sys.path = [p for p in sys.path if p and "nltk" not in str(p)] +import inspect + +sys.path = OLD_SYS_PATH + + +def __legacysignature(signature): + """ + For retrocompatibility reasons, we don't use a standard Signature. + Instead, we use the string generated by this method. + Basically, from a Signature we create a string and remove the default values. + """ + listsignature = str(signature)[1:-1].split(",") + for counter, param in enumerate(listsignature): + if param.count("=") > 0: + listsignature[counter] = param[0 : param.index("=")].strip() + else: + listsignature[counter] = param.strip() + return ", ".join(listsignature) + + +def getinfo(func): + """ + Returns an info dictionary containing: + - name (the name of the function : str) + - argnames (the names of the arguments : list) + - defaults (the values of the default arguments : tuple) + - signature (the signature : str) + - fullsignature (the full signature : Signature) + - doc (the docstring : str) + - module (the module name : str) + - dict (the function __dict__ : str) + + >>> def f(self, x=1, y=2, *args, **kw): pass + + >>> info = getinfo(f) + + >>> info["name"] + 'f' + >>> info["argnames"] + ['self', 'x', 'y', 'args', 'kw'] + + >>> info["defaults"] + (1, 2) + + >>> info["signature"] + 'self, x, y, *args, **kw' + + >>> info["fullsignature"] + + """ + assert inspect.ismethod(func) or inspect.isfunction(func) + argspec = inspect.getfullargspec(func) + regargs, varargs, varkwargs = argspec[:3] + argnames = list(regargs) + if varargs: + argnames.append(varargs) + if varkwargs: + argnames.append(varkwargs) + fullsignature = inspect.signature(func) + # Convert Signature to str + signature = __legacysignature(fullsignature) + + # pypy compatibility + if hasattr(func, "__closure__"): + _closure = func.__closure__ + _globals = func.__globals__ + else: + _closure = func.func_closure + _globals = func.func_globals + + return dict( + name=func.__name__, + argnames=argnames, + signature=signature, + fullsignature=fullsignature, + defaults=func.__defaults__, + doc=func.__doc__, + module=func.__module__, + dict=func.__dict__, + globals=_globals, + closure=_closure, + ) + + +def update_wrapper(wrapper, model, infodict=None): + "akin to functools.update_wrapper" + infodict = infodict or getinfo(model) + wrapper.__name__ = infodict["name"] + wrapper.__doc__ = infodict["doc"] + wrapper.__module__ = infodict["module"] + wrapper.__dict__.update(infodict["dict"]) + wrapper.__defaults__ = infodict["defaults"] + wrapper.undecorated = model + return wrapper + + +def new_wrapper(wrapper, model): + """ + An improvement over functools.update_wrapper. The wrapper is a generic + callable object. It works by generating a copy of the wrapper with the + right signature and by updating the copy, not the original. + Moreovoer, 'model' can be a dictionary with keys 'name', 'doc', 'module', + 'dict', 'defaults'. + """ + if isinstance(model, dict): + infodict = model + else: # assume model is a function + infodict = getinfo(model) + assert ( + "_wrapper_" not in infodict["argnames"] + ), '"_wrapper_" is a reserved argument name!' + src = "lambda %(signature)s: _wrapper_(%(signature)s)" % infodict + funcopy = eval(src, dict(_wrapper_=wrapper)) + return update_wrapper(funcopy, model, infodict) + + +# helper used in decorator_factory +def __call__(self, func): + return new_wrapper(lambda *a, **k: self.call(func, *a, **k), func) + + +def decorator_factory(cls): + """ + Take a class with a ``.caller`` method and return a callable decorator + object. It works by adding a suitable __call__ method to the class; + it raises a TypeError if the class already has a nontrivial __call__ + method. + """ + attrs = set(dir(cls)) + if "__call__" in attrs: + raise TypeError( + "You cannot decorate a class with a nontrivial " "__call__ method" + ) + if "call" not in attrs: + raise TypeError("You cannot decorate a class without a " ".call method") + cls.__call__ = __call__ + return cls + + +def decorator(caller): + """ + General purpose decorator factory: takes a caller function as + input and returns a decorator with the same attributes. + A caller function is any function like this:: + + def caller(func, *args, **kw): + # do something + return func(*args, **kw) + + Here is an example of usage: + + >>> @decorator + ... def chatty(f, *args, **kw): + ... print("Calling %r" % f.__name__) + ... return f(*args, **kw) + + >>> chatty.__name__ + 'chatty' + + >>> @chatty + ... def f(): pass + ... + >>> f() + Calling 'f' + + decorator can also take in input a class with a .caller method; in this + case it converts the class into a factory of callable decorator objects. + See the documentation for an example. + """ + if inspect.isclass(caller): + return decorator_factory(caller) + + def _decorator(func): # the real meat is here + infodict = getinfo(func) + argnames = infodict["argnames"] + assert not ( + "_call_" in argnames or "_func_" in argnames + ), "You cannot use _call_ or _func_ as argument names!" + src = "lambda %(signature)s: _call_(_func_, %(signature)s)" % infodict + # import sys; print >> sys.stderr, src # for debugging purposes + dec_func = eval(src, dict(_func_=func, _call_=caller)) + return update_wrapper(dec_func, func, infodict) + + return update_wrapper(_decorator, caller) + + +def getattr_(obj, name, default_thunk): + "Similar to .setdefault in dictionaries." + try: + return getattr(obj, name) + except AttributeError: + default = default_thunk() + setattr(obj, name, default) + return default + + +@decorator +def memoize(func, *args): + dic = getattr_(func, "memoize_dic", dict) + # memoize_dic is created at the first call + if args in dic: + return dic[args] + result = func(*args) + dic[args] = result + return result + + +########################## LEGALESE ############################### + +## Redistributions of source code must retain the above copyright +## notice, this list of conditions and the following disclaimer. +## Redistributions in bytecode form must reproduce the above copyright +## notice, this list of conditions and the following disclaimer in +## the documentation and/or other materials provided with the +## distribution. + +## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +## HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +## INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +## BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +## OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +## ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR +## TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE +## USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH +## DAMAGE. diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/downloader.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/downloader.py new file mode 100644 index 0000000000000000000000000000000000000000..e40b3a04ff105239b897641f8050f77397a2e61e --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/downloader.py @@ -0,0 +1,2745 @@ +# Natural Language Toolkit: Corpus & Model Downloader +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Edward Loper +# URL: +# For license information, see LICENSE.TXT + +""" +The NLTK corpus and module downloader. This module defines several +interfaces which can be used to download corpora, models, and other +data packages that can be used with NLTK. + +Downloading Packages +==================== +If called with no arguments, ``download()`` will display an interactive +interface which can be used to download and install new packages. +If Tkinter is available, then a graphical interface will be shown, +otherwise a simple text interface will be provided. + +Individual packages can be downloaded by calling the ``download()`` +function with a single argument, giving the package identifier for the +package that should be downloaded: + + >>> download('treebank') # doctest: +SKIP + [nltk_data] Downloading package 'treebank'... + [nltk_data] Unzipping corpora/treebank.zip. + +NLTK also provides a number of \"package collections\", consisting of +a group of related packages. To download all packages in a +colleciton, simply call ``download()`` with the collection's +identifier: + + >>> download('all-corpora') # doctest: +SKIP + [nltk_data] Downloading package 'abc'... + [nltk_data] Unzipping corpora/abc.zip. + [nltk_data] Downloading package 'alpino'... + [nltk_data] Unzipping corpora/alpino.zip. + ... + [nltk_data] Downloading package 'words'... + [nltk_data] Unzipping corpora/words.zip. + +Download Directory +================== +By default, packages are installed in either a system-wide directory +(if Python has sufficient access to write to it); or in the current +user's home directory. However, the ``download_dir`` argument may be +used to specify a different installation target, if desired. + +See ``Downloader.default_download_dir()`` for more a detailed +description of how the default download directory is chosen. + +NLTK Download Server +==================== +Before downloading any packages, the corpus and module downloader +contacts the NLTK download server, to retrieve an index file +describing the available packages. By default, this index file is +loaded from ``https://raw.githubusercontent.com/nltk/nltk_data/gh-pages/index.xml``. +If necessary, it is possible to create a new ``Downloader`` object, +specifying a different URL for the package index file. + +Usage:: + + python nltk/downloader.py [-d DATADIR] [-q] [-f] [-k] PACKAGE_IDS + +or:: + + python -m nltk.downloader [-d DATADIR] [-q] [-f] [-k] PACKAGE_IDS +""" + +# ---------------------------------------------------------------------- + +""" + + 0 1 2 3 +[label][----][label][----] +[column ][column ] + +Notes +===== +Handling data files.. Some questions: + +* Should the data files be kept zipped or unzipped? I say zipped. + +* Should the data files be kept in svn at all? Advantages: history; + automatic version numbers; 'svn up' could be used rather than the + downloader to update the corpora. Disadvantages: they're big, + which makes working from svn a bit of a pain. And we're planning + to potentially make them much bigger. I don't think we want + people to have to download 400MB corpora just to use nltk from svn. + +* Compromise: keep the data files in trunk/data rather than in + trunk/nltk. That way you can check them out in svn if you want + to; but you don't need to, and you can use the downloader instead. + +* Also: keep models in mind. When we change the code, we'd + potentially like the models to get updated. This could require a + little thought. + +* So.. let's assume we have a trunk/data directory, containing a bunch + of packages. The packages should be kept as zip files, because we + really shouldn't be editing them much (well -- we may edit models + more, but they tend to be binary-ish files anyway, where diffs + aren't that helpful). So we'll have trunk/data, with a bunch of + files like abc.zip and treebank.zip and propbank.zip. For each + package we could also have eg treebank.xml and propbank.xml, + describing the contents of the package (name, copyright, license, + etc). Collections would also have .xml files. Finally, we would + pull all these together to form a single index.xml file. Some + directory structure wouldn't hurt. So how about:: + + /trunk/data/ ....................... root of data svn + index.xml ........................ main index file + src/ ............................. python scripts + packages/ ........................ dir for packages + corpora/ ....................... zip & xml files for corpora + grammars/ ...................... zip & xml files for grammars + taggers/ ....................... zip & xml files for taggers + tokenizers/ .................... zip & xml files for tokenizers + etc. + collections/ ..................... xml files for collections + + Where the root (/trunk/data) would contain a makefile; and src/ + would contain a script to update the info.xml file. It could also + contain scripts to rebuild some of the various model files. The + script that builds index.xml should probably check that each zip + file expands entirely into a single subdir, whose name matches the + package's uid. + +Changes I need to make: + - in index: change "size" to "filesize" or "compressed-size" + - in index: add "unzipped-size" + - when checking status: check both compressed & uncompressed size. + uncompressed size is important to make sure we detect a problem + if something got partially unzipped. define new status values + to differentiate stale vs corrupt vs corruptly-uncompressed?? + (we shouldn't need to re-download the file if the zip file is ok + but it didn't get uncompressed fully.) + - add other fields to the index: author, license, copyright, contact, + etc. + +the current grammars/ package would become a single new package (eg +toy-grammars or book-grammars). + +xml file should have: + - authorship info + - license info + - copyright info + - contact info + - info about what type of data/annotation it contains? + - recommended corpus reader? + +collections can contain other collections. they can also contain +multiple package types (corpora & models). Have a single 'basics' +package that includes everything we talk about in the book? + +n.b.: there will have to be a fallback to the punkt tokenizer, in case +they didn't download that model. + +default: unzip or not? + +""" +import functools +import itertools +import os +import subprocess +import sys +import textwrap +import threading +import time +import warnings +import zipfile +from hashlib import md5, sha256 +from urllib.error import HTTPError, URLError +from xml.etree import ElementTree + +import nltk +from nltk.pathsec import ZipFile, urlopen + +# urllib2 = nltk.internals.import_from_stdlib('urllib2') + + +###################################################################### +# Directory entry objects (from the data server's index file) +###################################################################### + + +class Package: + """ + A directory entry for a downloadable package. These entries are + extracted from the XML index file that is downloaded by + ``Downloader``. Each package consists of a single file; but if + that file is a zip file, then it can be automatically decompressed + when the package is installed. + """ + + def __init__( + self, + id, + url, + name=None, + subdir="", + size=None, + unzipped_size=None, + checksum=None, + svn_revision=None, + copyright="Unknown", + contact="Unknown", + license="Unknown", + author="Unknown", + unzip=True, + **kw, + ): + self.id = id + """A unique identifier for this package.""" + + self.name = name or id + """A string name for this package.""" + + # Validate subdir to prevent path traversal from malicious XML index + if os.path.isabs(subdir) or ".." in subdir.replace("\\", "/").split("/"): + raise ValueError( + f"Invalid package subdir {subdir!r}: must be a relative path " + f"without parent directory references" + ) + self.subdir = subdir + """The subdirectory where this package should be installed. + E.g., ``'corpora'`` or ``'taggers'``.""" + + # Validate id to prevent path traversal + if os.sep in id or "/" in id or "\\" in id or ".." in id: + raise ValueError( + f"Invalid package id {id!r}: must not contain path separators" + ) + + self.url = url + """A URL that can be used to download this package's file.""" + + self.size = int(size) + """The filesize (in bytes) of the package file.""" + + self.unzipped_size = int(unzipped_size) + """The total filesize of the files contained in the package's + zipfile.""" + + self.checksum = checksum + """The MD-5 checksum of the package file.""" + + self.svn_revision = svn_revision + """A subversion revision number for this package.""" + + self.copyright = copyright + """Copyright holder for this package.""" + + self.contact = contact + """Name & email of the person who should be contacted with + questions about this package.""" + + self.license = license + """License information for this package.""" + + self.author = author + """Author of this package.""" + + ext = os.path.splitext(url.split("/")[-1])[1] + self.filename = os.path.join(subdir, id + ext) + """The filename that should be used for this package's file. It + is formed by joining ``self.subdir`` with ``self.id``, and + using the same extension as ``url``.""" + + self.unzip = bool(int(unzip)) # '0' or '1' + """A flag indicating whether this corpus should be unzipped by + default.""" + + # Include any other attributes provided by the XML file. + self.__dict__.update(kw) + + @staticmethod + def fromxml(xml): + if isinstance(xml, str): + xml = ElementTree.parse(xml) + for key in xml.attrib: + xml.attrib[key] = str(xml.attrib[key]) + return Package(**xml.attrib) + + def __lt__(self, other): + return self.id < other.id + + def __repr__(self): + return "" % self.id + + +class Collection: + """ + A directory entry for a collection of downloadable packages. + These entries are extracted from the XML index file that is + downloaded by ``Downloader``. + """ + + def __init__(self, id, children, name=None, **kw): + self.id = id + """A unique identifier for this collection.""" + + self.name = name or id + """A string name for this collection.""" + + self.children = children + """A list of the ``Collections`` or ``Packages`` directly + contained by this collection.""" + + self.packages = None + """A list of ``Packages`` contained by this collection or any + collections it recursively contains.""" + + # Include any other attributes provided by the XML file. + self.__dict__.update(kw) + + @staticmethod + def fromxml(xml): + if isinstance(xml, str): + xml = ElementTree.parse(xml) + for key in xml.attrib: + xml.attrib[key] = str(xml.attrib[key]) + children = [child.get("ref") for child in xml.findall("item")] + return Collection(children=children, **xml.attrib) + + def __lt__(self, other): + return self.id < other.id + + def __repr__(self): + return "" % self.id + + +###################################################################### +# Message Passing Objects +###################################################################### + + +class DownloaderMessage: + """A status message object, used by ``incr_download`` to + communicate its progress.""" + + +class StartCollectionMessage(DownloaderMessage): + """Data server has started working on a collection of packages.""" + + def __init__(self, collection): + self.collection = collection + + +class FinishCollectionMessage(DownloaderMessage): + """Data server has finished working on a collection of packages.""" + + def __init__(self, collection): + self.collection = collection + + +class StartPackageMessage(DownloaderMessage): + """Data server has started working on a package.""" + + def __init__(self, package): + self.package = package + + +class FinishPackageMessage(DownloaderMessage): + """Data server has finished working on a package.""" + + def __init__(self, package): + self.package = package + + +class StartDownloadMessage(DownloaderMessage): + """Data server has started downloading a package.""" + + def __init__(self, package): + self.package = package + + +class FinishDownloadMessage(DownloaderMessage): + """Data server has finished downloading a package.""" + + def __init__(self, package): + self.package = package + + +class StartUnzipMessage(DownloaderMessage): + """Data server has started unzipping a package.""" + + def __init__(self, package): + self.package = package + + +class FinishUnzipMessage(DownloaderMessage): + """Data server has finished unzipping a package.""" + + def __init__(self, package): + self.package = package + + +class UpToDateMessage(DownloaderMessage): + """The package download file is already up-to-date""" + + def __init__(self, package): + self.package = package + + +class StaleMessage(DownloaderMessage): + """The package download file is out-of-date or corrupt""" + + def __init__(self, package): + self.package = package + + +class ErrorMessage(DownloaderMessage): + """Data server encountered an error""" + + def __init__(self, package, message): + self.package = package + if isinstance(message, Exception): + self.message = str(message) + else: + self.message = message + + +class ProgressMessage(DownloaderMessage): + """Indicates how much progress the data server has made""" + + def __init__(self, progress): + self.progress = progress + + +class SelectDownloadDirMessage(DownloaderMessage): + """Indicates what download directory the data server is using""" + + def __init__(self, download_dir): + self.download_dir = download_dir + + +###################################################################### +# NLTK Data Server +###################################################################### + + +class Downloader: + """ + A class used to access the NLTK data server, which can be used to + download corpora and other data packages. + """ + + # ///////////////////////////////////////////////////////////////// + # Configuration + # ///////////////////////////////////////////////////////////////// + + INDEX_TIMEOUT = 60 * 60 # 1 hour + """The amount of time after which the cached copy of the data + server index will be considered 'stale,' and will be + re-downloaded.""" + + DEFAULT_URL = "https://raw.githubusercontent.com/nltk/nltk_data/gh-pages/index.xml" + """The default URL for the NLTK data server's index. An + alternative URL can be specified when creating a new + ``Downloader`` object.""" + + # ///////////////////////////////////////////////////////////////// + # Status Constants + # ///////////////////////////////////////////////////////////////// + + INSTALLED = "installed" + """A status string indicating that a package or collection is + installed and up-to-date.""" + NOT_INSTALLED = "not installed" + """A status string indicating that a package or collection is + not installed.""" + STALE = "out of date" + """A status string indicating that a package or collection is + corrupt or out-of-date.""" + PARTIAL = "partial" + """A status string indicating that a collection is partially + installed (i.e., only some of its packages are installed.)""" + + # ///////////////////////////////////////////////////////////////// + # Constructor + # ///////////////////////////////////////////////////////////////// + + def __init__(self, server_index_url=None, download_dir=None): + self._url = server_index_url or self.DEFAULT_URL + """The URL for the data server's index file.""" + + self._collections = {} + """Dictionary from collection identifier to ``Collection``""" + + self._packages = {} + """Dictionary from package identifier to ``Package``""" + + self._download_dir = download_dir + """The default directory to which packages will be downloaded.""" + + self._index = None + """The XML index file downloaded from the data server""" + + self._index_timestamp = None + """Time at which ``self._index`` was downloaded. If it is more + than ``INDEX_TIMEOUT`` seconds old, it will be re-downloaded.""" + + self._status_cache = {} + """Dictionary from package/collection identifier to status + string (``INSTALLED``, ``NOT_INSTALLED``, ``STALE``, or + ``PARTIAL``). Cache is used for packages only, not + collections.""" + + self._errors = None + """Flag for telling if all packages got successfully downloaded or not.""" + + # decide where we're going to save things to. + if self._download_dir is None: + self._download_dir = self.default_download_dir() + + # ///////////////////////////////////////////////////////////////// + # Information + # ///////////////////////////////////////////////////////////////// + + def list( + self, + download_dir=None, + show_packages=True, + show_collections=True, + header=True, + more_prompt=False, + skip_installed=False, + ): + lines = 0 # for more_prompt + if download_dir is None: + download_dir = self._download_dir + print("Using default data directory (%s)" % download_dir) + if header: + print("=" * (26 + len(self._url))) + print(" Data server index for <%s>" % self._url) + print("=" * (26 + len(self._url))) + lines += 3 # for more_prompt + stale = partial = False + + categories = [] + if show_packages: + categories.append("packages") + if show_collections: + categories.append("collections") + for category in categories: + print("%s:" % category.capitalize()) + lines += 1 # for more_prompt + for info in sorted(getattr(self, category)(), key=str): + status = self.status(info, download_dir) + if status == self.INSTALLED and skip_installed: + continue + if status == self.STALE: + stale = True + if status == self.PARTIAL: + partial = True + prefix = { + self.INSTALLED: "*", + self.STALE: "-", + self.PARTIAL: "P", + self.NOT_INSTALLED: " ", + }[status] + name = textwrap.fill( + "-" * 27 + (info.name or info.id), 75, subsequent_indent=27 * " " + )[27:] + print(" [{}] {} {}".format(prefix, info.id.ljust(20, "."), name)) + lines += len(name.split("\n")) # for more_prompt + if more_prompt and lines > 20: + user_input = input("Hit Enter to continue: ") + if user_input.lower() in ("x", "q"): + return + lines = 0 + print() + msg = "([*] marks installed packages" + if stale: + msg += "; [-] marks out-of-date or corrupt packages" + if partial: + msg += "; [P] marks partially installed collections" + print(textwrap.fill(msg + ")", subsequent_indent=" ", width=76)) + + def packages(self): + self._update_index() + return self._packages.values() + + def corpora(self): + self._update_index() + return [pkg for (id, pkg) in self._packages.items() if pkg.subdir == "corpora"] + + def models(self): + self._update_index() + return [pkg for (id, pkg) in self._packages.items() if pkg.subdir != "corpora"] + + def collections(self): + self._update_index() + return self._collections.values() + + # ///////////////////////////////////////////////////////////////// + # Downloading + # ///////////////////////////////////////////////////////////////// + + def _info_or_id(self, info_or_id): + if isinstance(info_or_id, str): + return self.info(info_or_id) + else: + return info_or_id + + # [xx] When during downloading is it 'safe' to abort? Only unsafe + # time is *during* an unzip -- we don't want to leave a + # partially-unzipped corpus in place because we wouldn't notice + # it. But if we had the exact total size of the unzipped corpus, + # then that would be fine. Then we could abort anytime we want! + # So this is really what we should do. That way the threaded + # downloader in the gui can just kill the download thread anytime + # it wants. + + def incr_download(self, info_or_id, download_dir=None, force=False): + # If they didn't specify a download_dir, then use the default one. + if download_dir is None: + download_dir = self._download_dir + yield SelectDownloadDirMessage(download_dir) + + # If they gave us a list of ids, then download each one. + if isinstance(info_or_id, (list, tuple)): + yield from self._download_list(info_or_id, download_dir, force) + return + + # Look up the requested collection or package. + try: + info = self._info_or_id(info_or_id) + except (OSError, ValueError) as e: + yield ErrorMessage(None, f"Error loading {info_or_id}: {e}") + return + + # Handle collections. + if isinstance(info, Collection): + yield StartCollectionMessage(info) + yield from self.incr_download(info.children, download_dir, force) + yield FinishCollectionMessage(info) + + # Handle Packages (delegate to a helper function). + else: + yield from self._download_package(info, download_dir, force) + + def _num_packages(self, item): + if isinstance(item, Package): + return 1 + else: + return len(item.packages) + + def _download_list(self, items, download_dir, force): + # Look up the requested items. + for i in range(len(items)): + try: + items[i] = self._info_or_id(items[i]) + except (OSError, ValueError) as e: + yield ErrorMessage(items[i], e) + return + + # Download each item, re-scaling their progress. + num_packages = sum(self._num_packages(item) for item in items) + progress = 0 + for i, item in enumerate(items): + if isinstance(item, Package): + delta = 1.0 / num_packages + else: + delta = len(item.packages) / num_packages + for msg in self.incr_download(item, download_dir, force): + if isinstance(msg, ProgressMessage): + yield ProgressMessage(progress + msg.progress * delta) + else: + yield msg + + progress += 100 * delta + + def _download_package(self, info, download_dir, force): + yield StartPackageMessage(info) + yield ProgressMessage(0) + + # Do we already have the current version? + status = self.status(info, download_dir) + if not force and status == self.INSTALLED: + yield UpToDateMessage(info) + yield ProgressMessage(100) + yield FinishPackageMessage(info) + return + + # Remove the package from our status cache + self._status_cache.pop(info.id, None) + + # Check for (and remove) any old/stale version. + filepath = os.path.join(download_dir, info.filename) + + # Defense-in-depth: verify filepath stays within download_dir + real_download = os.path.realpath(os.path.abspath(download_dir)) + real_filepath = os.path.realpath(os.path.abspath(filepath)) + if not real_filepath.startswith(real_download + os.sep): + yield ErrorMessage( + info, + f"Path traversal blocked: package '{info.id}' attempted to " + f"write outside download directory (subdir='{info.subdir}')", + ) + return + + if os.path.exists(filepath): + if status == self.STALE: + yield StaleMessage(info) + os.remove(filepath) + + # Ensure the download_dir exists + os.makedirs(download_dir, exist_ok=True) + os.makedirs(os.path.join(download_dir, info.subdir), exist_ok=True) + + # Download the file. This will raise an IOError if the url + # is not found. + yield StartDownloadMessage(info) + yield ProgressMessage(5) + try: + infile = urlopen(info.url) + with open(filepath, "wb") as outfile: + num_blocks = max(1, info.size / (1024 * 16)) + for block in itertools.count(): + s = infile.read(1024 * 16) # 16k blocks. + outfile.write(s) + if not s: + break + if block % 2 == 0: # how often? + yield ProgressMessage(min(80, 5 + 75 * (block / num_blocks))) + infile.close() + except OSError as e: + yield ErrorMessage( + info, + "Error downloading %r from <%s>:" "\n %s" % (info.id, info.url, e), + ) + return + yield FinishDownloadMessage(info) + yield ProgressMessage(80) + + # If it's a zipfile, uncompress it. + if info.filename.endswith(".zip"): + zipdir = os.path.join(download_dir, info.subdir) + # Unzip if we're unzipping by default; *or* if it's already + # been unzipped (presumably a previous version). + if info.unzip or os.path.exists(os.path.join(zipdir, info.id)): + yield StartUnzipMessage(info) + for msg in _unzip_iter(filepath, zipdir, verbose=False): + # Somewhat of a hack, but we need a proper package reference + msg.package = info + yield msg + yield FinishUnzipMessage(info) + + yield FinishPackageMessage(info) + + def download( + self, + info_or_id=None, + download_dir=None, + quiet=False, + force=False, + prefix="[nltk_data] ", + halt_on_error=True, + raise_on_error=False, + print_error_to=sys.stderr, + ): + print_to = functools.partial(print, file=print_error_to) + # If no info or id is given, then use the interactive shell. + if info_or_id is None: + # [xx] hmm -- changing self._download_dir here seems like + # the wrong thing to do. Maybe the _interactive_download + # function should make a new copy of self to use? + if download_dir is not None: + self._download_dir = download_dir + self._interactive_download() + return True + + else: + # Define a helper function for displaying output: + def show(s, prefix2=""): + print_to( + textwrap.fill( + s, + initial_indent=prefix + prefix2, + subsequent_indent=prefix + prefix2 + " " * 4, + ) + ) + + for msg in self.incr_download(info_or_id, download_dir, force): + # Error messages + if isinstance(msg, ErrorMessage): + show(msg.message) + if raise_on_error: + raise ValueError(msg.message) + if halt_on_error: + return False + self._errors = True + if not quiet: + print_to("Error installing package. Retry? [n/y/e]") + choice = input().strip() + if choice in ["y", "Y"]: + if not self.download( + msg.package.id, + download_dir, + quiet, + force, + prefix, + halt_on_error, + raise_on_error, + ): + return False + elif choice in ["e", "E"]: + return False + + # All other messages + if not quiet: + # Collection downloading messages: + if isinstance(msg, StartCollectionMessage): + show("Downloading collection %r" % msg.collection.id) + prefix += " | " + print_to(prefix) + elif isinstance(msg, FinishCollectionMessage): + print_to(prefix) + prefix = prefix[:-4] + if self._errors: + show( + "Downloaded collection %r with errors" + % msg.collection.id + ) + else: + show("Done downloading collection %s" % msg.collection.id) + + # Package downloading messages: + elif isinstance(msg, StartPackageMessage): + show( + "Downloading package %s to %s..." + % (msg.package.id, download_dir) + ) + elif isinstance(msg, UpToDateMessage): + show("Package %s is already up-to-date!" % msg.package.id, " ") + # elif isinstance(msg, StaleMessage): + # show('Package %s is out-of-date or corrupt' % + # msg.package.id, ' ') + elif isinstance(msg, StartUnzipMessage): + show("Unzipping %s." % msg.package.filename, " ") + + # Data directory message: + elif isinstance(msg, SelectDownloadDirMessage): + download_dir = msg.download_dir + return True + + def is_stale(self, info_or_id, download_dir=None): + return self.status(info_or_id, download_dir) == self.STALE + + def is_installed(self, info_or_id, download_dir=None): + return self.status(info_or_id, download_dir) == self.INSTALLED + + def clear_status_cache(self, id=None): + if id is None: + self._status_cache.clear() + else: + self._status_cache.pop(id, None) + + def status(self, info_or_id, download_dir=None): + """ + Return a constant describing the status of the given package + or collection. Status can be one of ``INSTALLED``, + ``NOT_INSTALLED``, ``STALE``, or ``PARTIAL``. + """ + if download_dir is None: + download_dir = self._download_dir + info = self._info_or_id(info_or_id) + + # Handle collections: + if isinstance(info, Collection): + pkg_status = [self.status(pkg.id) for pkg in info.packages] + if self.STALE in pkg_status: + return self.STALE + elif self.PARTIAL in pkg_status: + return self.PARTIAL + elif self.INSTALLED in pkg_status and self.NOT_INSTALLED in pkg_status: + return self.PARTIAL + elif self.NOT_INSTALLED in pkg_status: + return self.NOT_INSTALLED + else: + return self.INSTALLED + + # Handle packages: + else: + filepath = os.path.join(download_dir, info.filename) + if download_dir != self._download_dir: + return self._pkg_status(info, filepath) + else: + if info.id not in self._status_cache: + self._status_cache[info.id] = self._pkg_status(info, filepath) + return self._status_cache[info.id] + + def _pkg_status(self, info, filepath): + if not os.path.exists(filepath): + return self.NOT_INSTALLED + + # Check if the file has the correct size. + try: + filestat = os.stat(filepath) + except OSError: + return self.NOT_INSTALLED + if filestat.st_size != int(info.size): + return self.STALE + + # Check if the file's checksum matches. + # Prefer sha256, but fall back to legacy md5 if sha256 is unavailable. + sha256_checksum = getattr(info, "sha256_checksum", None) + if sha256_checksum: + if sha256_hexdigest(filepath) != sha256_checksum: + return self.STALE + else: + if not getattr(self, "_warned_missing_sha256_checksum", False): + warnings.warn( + "NLTK downloader package metadata is missing SHA256 checksums; " + "falling back to legacy MD5 verification. Consider updating your " + "NLTK data index (or re-running the downloader) to get SHA256 checksums.", + RuntimeWarning, + stacklevel=2, + ) + self._warned_missing_sha256_checksum = True + + md5_checksum = getattr(info, "checksum", None) + if not md5_checksum: + return self.STALE + if md5_hexdigest(filepath) != md5_checksum: + return self.STALE + + # If it's a zipfile, and it's been at least partially + # unzipped, then check if it's been fully unzipped. + if filepath.endswith(".zip"): + unzipdir = filepath[:-4] + if not os.path.exists(unzipdir): + return self.INSTALLED # but not unzipped -- ok! + if not os.path.isdir(unzipdir): + return self.STALE + + unzipped_size = sum( + os.stat(os.path.join(d, f)).st_size + for d, _, files in os.walk(unzipdir) + for f in files + ) + if unzipped_size != info.unzipped_size: + return self.STALE + + # Otherwise, everything looks good. + return self.INSTALLED + + def update(self, quiet=False, prefix="[nltk_data] "): + """ + Re-download any packages whose status is STALE. + """ + self.clear_status_cache() + for pkg in self.packages(): + if self.status(pkg) == self.STALE: + self.download(pkg, quiet=quiet, prefix=prefix) + + # ///////////////////////////////////////////////////////////////// + # Index + # ///////////////////////////////////////////////////////////////// + + def _update_index(self, url=None): + """A helper function that ensures that self._index is + up-to-date. If the index is older than self.INDEX_TIMEOUT, + then download it again.""" + # Check if the index is already up-to-date. If so, do nothing. + if not ( + self._index is None + or url is not None + or time.time() - self._index_timestamp > self.INDEX_TIMEOUT + ): + return + + # If a URL was specified, then update our URL. + self._url = url or self._url + + # Download the index file. + self._index = nltk.internals.ElementWrapper( + ElementTree.parse(urlopen(self._url)).getroot() + ) + self._index_timestamp = time.time() + + # Build a dictionary of packages. + packages = [Package.fromxml(p) for p in self._index.findall("packages/package")] + self._packages = {p.id: p for p in packages} + + # Build a dictionary of collections. + collections = [ + Collection.fromxml(c) for c in self._index.findall("collections/collection") + ] + self._collections = {c.id: c for c in collections} + + # Replace identifiers with actual children in collection.children. + for collection in self._collections.values(): + for i, child_id in enumerate(collection.children): + if child_id in self._packages: + collection.children[i] = self._packages[child_id] + elif child_id in self._collections: + collection.children[i] = self._collections[child_id] + else: + print( + "removing collection member with no package: {}".format( + child_id + ) + ) + del collection.children[i] + + # Fill in collection.packages for each collection. + for collection in self._collections.values(): + packages = {} + queue = [collection] + for child in queue: + if isinstance(child, Collection): + queue.extend(child.children) + elif isinstance(child, Package): + packages[child.id] = child + else: + pass + collection.packages = packages.values() + + # Flush the status cache + self._status_cache.clear() + + def index(self): + """ + Return the XML index describing the packages available from + the data server. If necessary, this index will be downloaded + from the data server. + """ + self._update_index() + return self._index + + def info(self, id): + """Return the ``Package`` or ``Collection`` record for the + given item.""" + self._update_index() + if id in self._packages: + return self._packages[id] + if id in self._collections: + return self._collections[id] + raise ValueError("Package %r not found in index" % id) + + def xmlinfo(self, id): + """Return the XML info record for the given item""" + self._update_index() + for package in self._index.findall("packages/package"): + if package.get("id") == id: + return package + for collection in self._index.findall("collections/collection"): + if collection.get("id") == id: + return collection + raise ValueError("Package %r not found in index" % id) + + # ///////////////////////////////////////////////////////////////// + # URL & Data Directory + # ///////////////////////////////////////////////////////////////// + + def _get_url(self): + """The URL for the data server's index file.""" + return self._url + + def _set_url(self, url): + """ + Set a new URL for the data server. If we're unable to contact + the given url, then the original url is kept. + """ + original_url = self._url + try: + self._update_index(url) + except Exception: + self._url = original_url + raise + + url = property(_get_url, _set_url) + + def default_download_dir(self): + """ + Return the directory to which packages will be downloaded by + default. This value can be overridden using the constructor, + or on a case-by-case basis using the ``download_dir`` argument when + calling ``download()``. + + On Windows, the default download directory is + ``PYTHONHOME/lib/nltk``, where *PYTHONHOME* is the + directory containing Python, e.g. ``C:\\Python25``. + + On all other platforms, the default directory is the first of + the following which exists or which can be created with write + permission: ``/usr/share/nltk_data``, ``/usr/local/share/nltk_data``, + ``/usr/lib/nltk_data``, ``/usr/local/lib/nltk_data``, ``~/nltk_data``. + """ + # Check if we are on GAE where we cannot write into filesystem. + if "APPENGINE_RUNTIME" in os.environ: + return + + # Check if we have sufficient permissions to install in a + # variety of system-wide locations. + for nltkdir in nltk.data.path: + if os.path.exists(nltkdir) and nltk.internals.is_writable(nltkdir): + return nltkdir + + # On Windows, use %APPDATA% + if sys.platform == "win32" and "APPDATA" in os.environ: + homedir = os.environ["APPDATA"] + + # Otherwise, install in the user's home directory. + else: + homedir = os.path.expanduser("~/") + if homedir == "~/": + raise ValueError("Could not find a default download directory") + + # append "nltk_data" to the home directory + return os.path.join(homedir, "nltk_data") + + def _get_download_dir(self): + """ + The default directory to which packages will be downloaded. + This defaults to the value returned by ``default_download_dir()``. + To override this default on a case-by-case basis, use the + ``download_dir`` argument when calling ``download()``. + """ + return self._download_dir + + def _set_download_dir(self, download_dir): + self._download_dir = download_dir + # Clear the status cache. + self._status_cache.clear() + + download_dir = property(_get_download_dir, _set_download_dir) + + # ///////////////////////////////////////////////////////////////// + # Interactive Shell + # ///////////////////////////////////////////////////////////////// + + def _interactive_download(self): + # Only import tkinter if the user has indicated that they + # want to draw a UI. See issue #2949 for more info. + if ( + os.environ.get("NLTK_DOWNLOADER_FORCE_INTERACTIVE_SHELL", "false").lower() + == "true" + ): + DownloaderShell(self).run() + return + + # Try the GUI first; if that doesn't work, try the simple + # interactive shell. + try: + import tkinter + except ImportError: + DownloaderShell(self).run() + return + + try: + DownloaderGUI(self).mainloop() + except tkinter.TclError: + DownloaderShell(self).run() + + +class DownloaderShell: + def __init__(self, dataserver): + self._ds = dataserver + + def _simple_interactive_menu(self, *options): + print("-" * 75) + spc = (68 - sum(len(o) for o in options)) // (len(options) - 1) * " " + print(" " + spc.join(options)) + print("-" * 75) + + def run(self): + print("NLTK Downloader") + while True: + self._simple_interactive_menu( + "d) Download", + "l) List", + " u) Update", + "c) Config", + "h) Help", + "q) Quit", + ) + user_input = input("Downloader> ").strip() + if not user_input: + print() + continue + command = user_input.lower().split()[0] + args = user_input.split()[1:] + try: + if command == "l": + print() + self._ds.list(self._ds.download_dir, header=False, more_prompt=True) + elif command == "h": + self._simple_interactive_help() + elif command == "c": + self._simple_interactive_config() + elif command in ("q", "x"): + return + elif command == "d": + self._simple_interactive_download(args) + elif command == "u": + self._simple_interactive_update() + else: + print("Command %r unrecognized" % user_input) + except HTTPError as e: + print("Error reading from server: %s" % e) + except URLError as e: + print("Error connecting to server: %s" % e.reason) + # try checking if user_input is a package name, & + # downloading it? + print() + + def _simple_interactive_download(self, args): + if args: + for arg in args: + try: + self._ds.download(arg, prefix=" ") + except (OSError, ValueError) as e: + print(e) + else: + while True: + print() + print("Download which package (l=list; x=cancel)?") + user_input = input(" Identifier> ") + if user_input.lower() == "l": + self._ds.list( + self._ds.download_dir, + header=False, + more_prompt=True, + skip_installed=True, + ) + continue + elif user_input.lower() in ("x", "q", ""): + return + elif user_input: + for id in user_input.split(): + try: + self._ds.download(id, prefix=" ") + except (OSError, ValueError) as e: + print(e) + break + + def _simple_interactive_update(self): + while True: + stale_packages = [] + stale = partial = False + for info in sorted(getattr(self._ds, "packages")(), key=str): + if self._ds.status(info) == self._ds.STALE: + stale_packages.append((info.id, info.name)) + + print() + if stale_packages: + print("Will update following packages (o=ok; x=cancel)") + for pid, pname in stale_packages: + name = textwrap.fill( + "-" * 27 + (pname), 75, subsequent_indent=27 * " " + )[27:] + print(" [ ] {} {}".format(pid.ljust(20, "."), name)) + print() + + user_input = input(" Identifier> ") + if user_input.lower() == "o": + for pid, pname in stale_packages: + try: + self._ds.download(pid, prefix=" ") + except (OSError, ValueError) as e: + print(e) + break + elif user_input.lower() in ("x", "q", ""): + return + else: + print("Nothing to update.") + return + + def _simple_interactive_help(self): + print() + print("Commands:") + print( + " d) Download a package or collection u) Update out of date packages" + ) + print(" l) List packages & collections h) Help") + print(" c) View & Modify Configuration q) Quit") + + def _show_config(self): + print() + print("Data Server:") + print(" - URL: <%s>" % self._ds.url) + print(" - %d Package Collections Available" % len(self._ds.collections())) + print(" - %d Individual Packages Available" % len(self._ds.packages())) + print() + print("Local Machine:") + print(" - Data directory: %s" % self._ds.download_dir) + + def _simple_interactive_config(self): + self._show_config() + while True: + print() + self._simple_interactive_menu( + "s) Show Config", "u) Set Server URL", "d) Set Data Dir", "m) Main Menu" + ) + user_input = input("Config> ").strip().lower() + if user_input == "s": + self._show_config() + elif user_input == "d": + new_dl_dir = input(" New Directory> ").strip() + if new_dl_dir in ("", "x", "q", "X", "Q"): + print(" Cancelled!") + elif os.path.isdir(new_dl_dir): + self._ds.download_dir = new_dl_dir + else: + print("Directory %r not found! Create it first." % new_dl_dir) + elif user_input == "u": + new_url = input(" New URL> ").strip() + if new_url in ("", "x", "q", "X", "Q"): + print(" Cancelled!") + else: + if not new_url.startswith(("http://", "https://")): + new_url = "https://" + new_url + try: + self._ds.url = new_url + except Exception as e: + print(f"Error reading <{new_url!r}>:\n {e}") + elif user_input == "m": + break + + +class DownloaderGUI: + """ + Graphical interface for downloading packages from the NLTK data + server. + """ + + # ///////////////////////////////////////////////////////////////// + # Column Configuration + # ///////////////////////////////////////////////////////////////// + + COLUMNS = [ + "", + "Identifier", + "Name", + "Size", + "Status", + "Unzipped Size", + "Copyright", + "Contact", + "License", + "Author", + "Subdir", + "Checksum", + ] + """A list of the names of columns. This controls the order in + which the columns will appear. If this is edited, then + ``_package_to_columns()`` may need to be edited to match.""" + + COLUMN_WEIGHTS = {"": 0, "Name": 5, "Size": 0, "Status": 0} + """A dictionary specifying how columns should be resized when the + table is resized. Columns with weight 0 will not be resized at + all; and columns with high weight will be resized more. + Default weight (for columns not explicitly listed) is 1.""" + + COLUMN_WIDTHS = { + "": 1, + "Identifier": 20, + "Name": 45, + "Size": 10, + "Unzipped Size": 10, + "Status": 12, + } + """A dictionary specifying how wide each column should be, in + characters. The default width (for columns not explicitly + listed) is specified by ``DEFAULT_COLUMN_WIDTH``.""" + + DEFAULT_COLUMN_WIDTH = 30 + """The default width for columns that are not explicitly listed + in ``COLUMN_WIDTHS``.""" + + INITIAL_COLUMNS = ["", "Identifier", "Name", "Size", "Status"] + """The set of columns that should be displayed by default.""" + + # Perform a few import-time sanity checks to make sure that the + # column configuration variables are defined consistently: + for c in COLUMN_WEIGHTS: + assert c in COLUMNS + for c in COLUMN_WIDTHS: + assert c in COLUMNS + for c in INITIAL_COLUMNS: + assert c in COLUMNS + + # ///////////////////////////////////////////////////////////////// + # Color Configuration + # ///////////////////////////////////////////////////////////////// + + _BACKDROP_COLOR = ("#000", "#ccc") + + _ROW_COLOR = { + Downloader.INSTALLED: ("#afa", "#080"), + Downloader.PARTIAL: ("#ffa", "#880"), + Downloader.STALE: ("#faa", "#800"), + Downloader.NOT_INSTALLED: ("#fff", "#888"), + } + + _MARK_COLOR = ("#000", "#ccc") + + # _FRONT_TAB_COLOR = ('#ccf', '#008') + # _BACK_TAB_COLOR = ('#88a', '#448') + _FRONT_TAB_COLOR = ("#fff", "#45c") + _BACK_TAB_COLOR = ("#aaa", "#67a") + + _PROGRESS_COLOR = ("#f00", "#aaa") + + _TAB_FONT = "helvetica -16 bold" + + # ///////////////////////////////////////////////////////////////// + # Constructor + # ///////////////////////////////////////////////////////////////// + + def __init__(self, dataserver, use_threads=True): + # Only import tkinter if the user has indicated that they + # want to draw a UI. See issue #2949 for more info. + import tkinter + from tkinter.messagebox import showerror + + self._ds = dataserver + self._use_threads = use_threads + + # For the threaded downloader: + self._download_lock = threading.Lock() + self._download_msg_queue = [] + self._download_abort_queue = [] + self._downloading = False + + # For tkinter after callbacks: + self._afterid = {} + + # A message log. + self._log_messages = [] + self._log_indent = 0 + self._log("NLTK Downloader Started!") + + # Create the main window. + top = self.top = tkinter.Tk() + top.geometry("+50+50") + top.title("NLTK Downloader") + top.configure(background=self._BACKDROP_COLOR[1]) + + # Set up some bindings now, in case anything goes wrong. + top.bind("", self.destroy) + top.bind("", self.destroy) + self._destroyed = False + + self._column_vars = {} + + # Initialize the GUI. + self._init_widgets() + self._init_menu() + try: + self._fill_table() + except HTTPError as e: + showerror("Error reading from server", e) + except URLError as e: + showerror("Error connecting to server", e.reason) + + self._show_info() + self._select_columns() + self._table.select(0) + + # Make sure we get notified when we're destroyed, so we can + # cancel any download in progress. + self._table.bind("", self._destroy) + + def _log(self, msg): + self._log_messages.append( + "{} {}{}".format(time.ctime(), " | " * self._log_indent, msg) + ) + + # ///////////////////////////////////////////////////////////////// + # Internals + # ///////////////////////////////////////////////////////////////// + + def _init_widgets(self): + # Only import tkinter if the user has indicated that they + # want to draw a UI. See issue #2949 for more info. + import tkinter + + from nltk.draw.table import Table + + # Create the top-level frame structures + f1 = tkinter.Frame(self.top, relief="raised", border=2, padx=8, pady=0) + f1.pack(sid="top", expand=True, fill="both") + f1.grid_rowconfigure(2, weight=1) + f1.grid_columnconfigure(0, weight=1) + tkinter.Frame(f1, height=8).grid(column=0, row=0) # spacer + tabframe = tkinter.Frame(f1) + tabframe.grid(column=0, row=1, sticky="news") + tableframe = tkinter.Frame(f1) + tableframe.grid(column=0, row=2, sticky="news") + buttonframe = tkinter.Frame(f1) + buttonframe.grid(column=0, row=3, sticky="news") + tkinter.Frame(f1, height=8).grid(column=0, row=4) # spacer + infoframe = tkinter.Frame(f1) + infoframe.grid(column=0, row=5, sticky="news") + tkinter.Frame(f1, height=8).grid(column=0, row=6) # spacer + progressframe = tkinter.Frame( + self.top, padx=3, pady=3, background=self._BACKDROP_COLOR[1] + ) + progressframe.pack(side="bottom", fill="x") + self.top["border"] = 0 + self.top["highlightthickness"] = 0 + + # Create the tabs + self._tab_names = ["Collections", "Corpora", "Models", "All Packages"] + self._tabs = {} + for i, tab in enumerate(self._tab_names): + label = tkinter.Label(tabframe, text=tab, font=self._TAB_FONT) + label.pack(side="left", padx=((i + 1) % 2) * 10) + label.bind("", self._select_tab) + self._tabs[tab.lower()] = label + + # Create the table. + column_weights = [self.COLUMN_WEIGHTS.get(column, 1) for column in self.COLUMNS] + self._table = Table( + tableframe, + self.COLUMNS, + column_weights=column_weights, + highlightthickness=0, + listbox_height=16, + reprfunc=self._table_reprfunc, + ) + self._table.columnconfig(0, foreground=self._MARK_COLOR[0]) # marked + for i, column in enumerate(self.COLUMNS): + width = self.COLUMN_WIDTHS.get(column, self.DEFAULT_COLUMN_WIDTH) + self._table.columnconfig(i, width=width) + self._table.pack(expand=True, fill="both") + self._table.focus() + self._table.bind_to_listboxes("", self._download) + self._table.bind("", self._table_mark) + self._table.bind("", self._download) + self._table.bind("", self._prev_tab) + self._table.bind("", self._next_tab) + self._table.bind("", self._mark_all) + + # Create entry boxes for URL & download_dir + infoframe.grid_columnconfigure(1, weight=1) + + info = [ + ("url", "Server Index:", self._set_url), + ("download_dir", "Download Directory:", self._set_download_dir), + ] + self._info = {} + for i, (key, label, callback) in enumerate(info): + tkinter.Label(infoframe, text=label).grid(column=0, row=i, sticky="e") + entry = tkinter.Entry( + infoframe, + font="courier", + relief="groove", + disabledforeground="#007aff", + foreground="#007aff", + ) + self._info[key] = (entry, callback) + entry.bind("", self._info_save) + entry.bind("", lambda e, key=key: self._info_edit(key)) + entry.grid(column=1, row=i, sticky="ew") + + # If the user edits url or download_dir, and then clicks outside + # the entry box, then save their results. + self.top.bind("", self._info_save) + + # Create Download & Refresh buttons. + self._download_button = tkinter.Button( + buttonframe, text="Download", command=self._download, width=8 + ) + self._download_button.pack(side="left") + self._refresh_button = tkinter.Button( + buttonframe, text="Refresh", command=self._refresh, width=8 + ) + self._refresh_button.pack(side="right") + + # Create Progress bar + self._progresslabel = tkinter.Label( + progressframe, + text="", + foreground=self._BACKDROP_COLOR[0], + background=self._BACKDROP_COLOR[1], + ) + self._progressbar = tkinter.Canvas( + progressframe, + width=200, + height=16, + background=self._PROGRESS_COLOR[1], + relief="sunken", + border=1, + ) + self._init_progressbar() + self._progressbar.pack(side="right") + self._progresslabel.pack(side="left") + + def _init_menu(self): + import tkinter + + menubar = tkinter.Menu(self.top) + + filemenu = tkinter.Menu(menubar, tearoff=0) + filemenu.add_command( + label="Download", underline=0, command=self._download, accelerator="Return" + ) + filemenu.add_separator() + filemenu.add_command( + label="Change Server Index", + underline=7, + command=lambda: self._info_edit("url"), + ) + filemenu.add_command( + label="Change Download Directory", + underline=0, + command=lambda: self._info_edit("download_dir"), + ) + filemenu.add_separator() + filemenu.add_command(label="Show Log", underline=5, command=self._show_log) + filemenu.add_separator() + filemenu.add_command( + label="Exit", underline=1, command=self.destroy, accelerator="Ctrl-x" + ) + menubar.add_cascade(label="File", underline=0, menu=filemenu) + + # Create a menu to control which columns of the table are + # shown. n.b.: we never hide the first two columns (mark and + # identifier). + viewmenu = tkinter.Menu(menubar, tearoff=0) + for column in self._table.column_names[2:]: + var = tkinter.IntVar(self.top) + assert column not in self._column_vars + self._column_vars[column] = var + if column in self.INITIAL_COLUMNS: + var.set(1) + viewmenu.add_checkbutton( + label=column, underline=0, variable=var, command=self._select_columns + ) + menubar.add_cascade(label="View", underline=0, menu=viewmenu) + + # Create a sort menu + # [xx] this should be selectbuttons; and it should include + # reversed sorts as options. + sortmenu = tkinter.Menu(menubar, tearoff=0) + for column in self._table.column_names[1:]: + sortmenu.add_command( + label="Sort by %s" % column, + command=(lambda c=column: self._table.sort_by(c, "ascending")), + ) + sortmenu.add_separator() + # sortmenu.add_command(label='Descending Sort:') + for column in self._table.column_names[1:]: + sortmenu.add_command( + label="Reverse sort by %s" % column, + command=(lambda c=column: self._table.sort_by(c, "descending")), + ) + menubar.add_cascade(label="Sort", underline=0, menu=sortmenu) + + helpmenu = tkinter.Menu(menubar, tearoff=0) + helpmenu.add_command(label="About", underline=0, command=self.about) + helpmenu.add_command( + label="Instructions", underline=0, command=self.help, accelerator="F1" + ) + menubar.add_cascade(label="Help", underline=0, menu=helpmenu) + self.top.bind("", self.help) + + self.top.config(menu=menubar) + + def _select_columns(self): + for column, var in self._column_vars.items(): + if var.get(): + self._table.show_column(column) + else: + self._table.hide_column(column) + + def _refresh(self): + from tkinter.messagebox import showerror + + self._ds.clear_status_cache() + try: + self._fill_table() + except HTTPError as e: + showerror("Error reading from server", e) + except URLError as e: + showerror("Error connecting to server", e.reason) + self._table.select(0) + + def _info_edit(self, info_key): + self._info_save() # just in case. + entry, callback = self._info[info_key] + entry["state"] = "normal" + entry["relief"] = "sunken" + entry.focus() + + def _info_save(self, e=None): + focus = self._table + for entry, callback in self._info.values(): + if entry["state"] == "disabled": + continue + if e is not None and e.widget is entry and e.keysym != "Return": + focus = entry + else: + entry["state"] = "disabled" + entry["relief"] = "groove" + callback(entry.get()) + focus.focus() + + def _table_reprfunc(self, row, col, val): + if self._table.column_names[col].endswith("Size"): + if isinstance(val, str): + return " %s" % val + elif val < 1024**2: + return " %.1f KB" % (val / 1024.0**1) + elif val < 1024**3: + return " %.1f MB" % (val / 1024.0**2) + else: + return " %.1f GB" % (val / 1024.0**3) + + if col in (0, ""): + return str(val) + else: + return " %s" % val + + def _set_url(self, url): + from tkinter.messagebox import showerror + + if url == self._ds.url: + return + try: + self._ds.url = url + self._fill_table() + except OSError as e: + showerror("Error Setting Server Index", str(e)) + self._show_info() + + def _set_download_dir(self, download_dir): + from tkinter.messagebox import showerror + + if self._ds.download_dir == download_dir: + return + # check if the dir exists, and if not, ask if we should create it? + + # Clear our status cache, & re-check what's installed + self._ds.download_dir = download_dir + try: + self._fill_table() + except HTTPError as e: + showerror("Error reading from server", e) + except URLError as e: + showerror("Error connecting to server", e.reason) + self._show_info() + + def _show_info(self): + print("showing info", self._ds.url) + for entry, cb in self._info.values(): + entry["state"] = "normal" + entry.delete(0, "end") + self._info["url"][0].insert(0, self._ds.url) + self._info["download_dir"][0].insert(0, self._ds.download_dir) + for entry, cb in self._info.values(): + entry["state"] = "disabled" + + def _prev_tab(self, *e): + from tkinter.messagebox import showerror + + for i, tab in enumerate(self._tab_names): + if tab.lower() == self._tab and i > 0: + self._tab = self._tab_names[i - 1].lower() + try: + return self._fill_table() + except HTTPError as e: + showerror("Error reading from server", e) + except URLError as e: + showerror("Error connecting to server", e.reason) + + def _next_tab(self, *e): + from tkinter.messagebox import showerror + + for i, tab in enumerate(self._tab_names): + if tab.lower() == self._tab and i < (len(self._tabs) - 1): + self._tab = self._tab_names[i + 1].lower() + try: + return self._fill_table() + except HTTPError as e: + showerror("Error reading from server", e) + except URLError as e: + showerror("Error connecting to server", e.reason) + + def _select_tab(self, event): + from tkinter.messagebox import showerror + + self._tab = event.widget["text"].lower() + try: + self._fill_table() + except HTTPError as e: + showerror("Error reading from server", e) + except URLError as e: + showerror("Error connecting to server", e.reason) + + _tab = "collections" + # _tab = 'corpora' + _rows = None + + def _fill_table(self): + selected_row = self._table.selected_row() + self._table.clear() + if self._tab == "all packages": + items = self._ds.packages() + elif self._tab == "corpora": + items = self._ds.corpora() + elif self._tab == "models": + items = self._ds.models() + elif self._tab == "collections": + items = self._ds.collections() + else: + assert 0, "bad tab value %r" % self._tab + rows = [self._package_to_columns(item) for item in items] + self._table.extend(rows) + + # Highlight the active tab. + for tab, label in self._tabs.items(): + if tab == self._tab: + label.configure( + foreground=self._FRONT_TAB_COLOR[0], + background=self._FRONT_TAB_COLOR[1], + ) + else: + label.configure( + foreground=self._BACK_TAB_COLOR[0], + background=self._BACK_TAB_COLOR[1], + ) + + self._table.sort_by("Identifier", order="ascending") + self._color_table() + self._table.select(selected_row) + + # This is a hack, because the scrollbar isn't updating its + # position right -- I'm not sure what the underlying cause is + # though. (This is on OS X w/ python 2.5) The length of + # delay that's necessary seems to depend on how fast the + # comptuer is. :-/ + self.top.after(150, self._table._scrollbar.set, *self._table._mlb.yview()) + self.top.after(300, self._table._scrollbar.set, *self._table._mlb.yview()) + + def _update_table_status(self): + for row_num in range(len(self._table)): + status = self._ds.status(self._table[row_num, "Identifier"]) + self._table[row_num, "Status"] = status + self._color_table() + + def _download(self, *e): + # If we're using threads, then delegate to the threaded + # downloader instead. + if self._use_threads: + return self._download_threaded(*e) + + marked = [ + self._table[row, "Identifier"] + for row in range(len(self._table)) + if self._table[row, 0] != "" + ] + selection = self._table.selected_row() + if not marked and selection is not None: + marked = [self._table[selection, "Identifier"]] + + download_iter = self._ds.incr_download(marked, self._ds.download_dir) + self._log_indent = 0 + self._download_cb(download_iter, marked) + + _DL_DELAY = 10 + + def _download_cb(self, download_iter, ids): + try: + msg = next(download_iter) + except StopIteration: + # self._fill_table(sort=False) + self._update_table_status() + afterid = self.top.after(10, self._show_progress, 0) + self._afterid["_download_cb"] = afterid + return + + def show(s): + self._progresslabel["text"] = s + self._log(s) + + if isinstance(msg, ProgressMessage): + self._show_progress(msg.progress) + elif isinstance(msg, ErrorMessage): + show(msg.message) + if msg.package is not None: + self._select(msg.package.id) + self._show_progress(None) + return # halt progress. + elif isinstance(msg, StartCollectionMessage): + show("Downloading collection %s" % msg.collection.id) + self._log_indent += 1 + elif isinstance(msg, StartPackageMessage): + show("Downloading package %s" % msg.package.id) + elif isinstance(msg, UpToDateMessage): + show("Package %s is up-to-date!" % msg.package.id) + # elif isinstance(msg, StaleMessage): + # show('Package %s is out-of-date or corrupt' % msg.package.id) + elif isinstance(msg, FinishDownloadMessage): + show("Finished downloading %r." % msg.package.id) + elif isinstance(msg, StartUnzipMessage): + show("Unzipping %s" % msg.package.filename) + elif isinstance(msg, FinishCollectionMessage): + self._log_indent -= 1 + show("Finished downloading collection %r." % msg.collection.id) + self._clear_mark(msg.collection.id) + elif isinstance(msg, FinishPackageMessage): + self._clear_mark(msg.package.id) + afterid = self.top.after(self._DL_DELAY, self._download_cb, download_iter, ids) + self._afterid["_download_cb"] = afterid + + def _select(self, id): + for row in range(len(self._table)): + if self._table[row, "Identifier"] == id: + self._table.select(row) + return + + def _color_table(self): + # Color rows according to status. + for row in range(len(self._table)): + bg, sbg = self._ROW_COLOR[self._table[row, "Status"]] + fg, sfg = ("black", "white") + self._table.rowconfig( + row, + foreground=fg, + selectforeground=sfg, + background=bg, + selectbackground=sbg, + ) + # Color the marked column + self._table.itemconfigure( + row, 0, foreground=self._MARK_COLOR[0], background=self._MARK_COLOR[1] + ) + + def _clear_mark(self, id): + for row in range(len(self._table)): + if self._table[row, "Identifier"] == id: + self._table[row, 0] = "" + + def _mark_all(self, *e): + for row in range(len(self._table)): + self._table[row, 0] = "X" + + def _table_mark(self, *e): + selection = self._table.selected_row() + if selection >= 0: + if self._table[selection][0] != "": + self._table[selection, 0] = "" + else: + self._table[selection, 0] = "X" + self._table.select(delta=1) + + def _show_log(self): + from nltk.draw.util import ShowText + + text = "\n".join(self._log_messages) + ShowText(self.top, "NLTK Downloader Log", text) + + def _package_to_columns(self, pkg): + """ + Given a package, return a list of values describing that + package, one for each column in ``self.COLUMNS``. + """ + row = [] + for column_index, column_name in enumerate(self.COLUMNS): + if column_index == 0: # Mark: + row.append("") + elif column_name == "Identifier": + row.append(pkg.id) + elif column_name == "Status": + row.append(self._ds.status(pkg)) + else: + attr = column_name.lower().replace(" ", "_") + row.append(getattr(pkg, attr, "n/a")) + return row + + # ///////////////////////////////////////////////////////////////// + # External Interface + # ///////////////////////////////////////////////////////////////// + + def destroy(self, *e): + if self._destroyed: + return + self.top.destroy() + self._destroyed = True + + def _destroy(self, *e): + if self.top is not None: + for afterid in self._afterid.values(): + self.top.after_cancel(afterid) + + # Abort any download in progress. + if self._downloading and self._use_threads: + self._abort_download() + + # Make sure the garbage collector destroys these now; + # otherwise, they may get destroyed when we're not in the main + # thread, which would make Tkinter unhappy. + self._column_vars.clear() + + def mainloop(self, *args, **kwargs): + self.top.mainloop(*args, **kwargs) + + # ///////////////////////////////////////////////////////////////// + # HELP + # ///////////////////////////////////////////////////////////////// + + HELP = textwrap.dedent( + """\ + This tool can be used to download a variety of corpora and models + that can be used with NLTK. Each corpus or model is distributed + in a single zip file, known as a \"package file.\" You can + download packages individually, or you can download pre-defined + collections of packages. + + When you download a package, it will be saved to the \"download + directory.\" A default download directory is chosen when you run + + the downloader; but you may also select a different download + directory. On Windows, the default download directory is + + + \"package.\" + + The NLTK downloader can be used to download a variety of corpora, + models, and other data packages. + + Keyboard shortcuts:: + [return]\t Download + [up]\t Select previous package + [down]\t Select next package + [left]\t Select previous tab + [right]\t Select next tab + """ + ) + + def help(self, *e): + from nltk.draw.util import ShowText + + # The default font's not very legible; try using 'fixed' instead. + try: + ShowText( + self.top, + "Help: NLTK Downloader", + self.HELP.strip(), + width=75, + font="fixed", + ) + except Exception: + ShowText(self.top, "Help: NLTK Downloader", self.HELP.strip(), width=75) + + def about(self, *e): + from nltk.draw.util import ShowText + + ABOUT = "NLTK Downloader\n" + "Written by Edward Loper" + TITLE = "About: NLTK Downloader" + try: + from tkinter.messagebox import Message + + Message(message=ABOUT, title=TITLE).show() + except ImportError: + ShowText(self.top, TITLE, ABOUT) + + # ///////////////////////////////////////////////////////////////// + # Progress Bar + # ///////////////////////////////////////////////////////////////// + + _gradient_width = 5 + + def _init_progressbar(self): + c = self._progressbar + width, height = int(c["width"]), int(c["height"]) + for i in range(0, (int(c["width"]) * 2) // self._gradient_width): + c.create_line( + i * self._gradient_width + 20, + -20, + i * self._gradient_width - height - 20, + height + 20, + width=self._gradient_width, + fill="#%02x0000" % (80 + abs(i % 6 - 3) * 12), + ) + c.addtag_all("gradient") + c.itemconfig("gradient", state="hidden") + + # This is used to display progress + c.addtag_withtag( + "redbox", c.create_rectangle(0, 0, 0, 0, fill=self._PROGRESS_COLOR[0]) + ) + + def _show_progress(self, percent): + c = self._progressbar + if percent is None: + c.coords("redbox", 0, 0, 0, 0) + c.itemconfig("gradient", state="hidden") + else: + width, height = int(c["width"]), int(c["height"]) + x = percent * int(width) // 100 + 1 + c.coords("redbox", 0, 0, x, height + 1) + + def _progress_alive(self): + c = self._progressbar + if not self._downloading: + c.itemconfig("gradient", state="hidden") + else: + c.itemconfig("gradient", state="normal") + x1, y1, x2, y2 = c.bbox("gradient") + if x1 <= -100: + c.move("gradient", (self._gradient_width * 6) - 4, 0) + else: + c.move("gradient", -4, 0) + afterid = self.top.after(200, self._progress_alive) + self._afterid["_progress_alive"] = afterid + + # ///////////////////////////////////////////////////////////////// + # Threaded downloader + # ///////////////////////////////////////////////////////////////// + + def _download_threaded(self, *e): + # If the user tries to start a new download while we're already + # downloading something, then abort the current download instead. + if self._downloading: + self._abort_download() + return + + # Change the 'download' button to an 'abort' button. + self._download_button["text"] = "Cancel" + + marked = [ + self._table[row, "Identifier"] + for row in range(len(self._table)) + if self._table[row, 0] != "" + ] + selection = self._table.selected_row() + if not marked and selection is not None: + marked = [self._table[selection, "Identifier"]] + + # Create a new data server object for the download operation, + # just in case the user modifies our data server during the + # download (e.g., clicking 'refresh' or editing the index url). + ds = Downloader(self._ds.url, self._ds.download_dir) + + # Start downloading in a separate thread. + assert self._download_msg_queue == [] + assert self._download_abort_queue == [] + self._DownloadThread( + ds, + marked, + self._download_lock, + self._download_msg_queue, + self._download_abort_queue, + ).start() + + # Monitor the download message queue & display its progress. + self._log_indent = 0 + self._downloading = True + self._monitor_message_queue() + + # Display an indication that we're still alive and well by + # cycling the progress bar. + self._progress_alive() + + def _abort_download(self): + if self._downloading: + self._download_lock.acquire() + self._download_abort_queue.append("abort") + self._download_lock.release() + + class _DownloadThread(threading.Thread): + def __init__(self, data_server, items, lock, message_queue, abort): + self.data_server = data_server + self.items = items + self.lock = lock + self.message_queue = message_queue + self.abort = abort + threading.Thread.__init__(self) + + def run(self): + for msg in self.data_server.incr_download(self.items): + self.lock.acquire() + self.message_queue.append(msg) + # Check if we've been told to kill ourselves: + if self.abort: + self.message_queue.append("aborted") + self.lock.release() + return + self.lock.release() + self.lock.acquire() + self.message_queue.append("finished") + self.lock.release() + + _MONITOR_QUEUE_DELAY = 100 + + def _monitor_message_queue(self): + def show(s): + self._progresslabel["text"] = s + self._log(s) + + # Try to acquire the lock; if it's busy, then just try again later. + if not self._download_lock.acquire(): + return + for msg in self._download_msg_queue: + # Done downloading? + if msg == "finished" or msg == "aborted": + # self._fill_table(sort=False) + self._update_table_status() + self._downloading = False + self._download_button["text"] = "Download" + del self._download_msg_queue[:] + del self._download_abort_queue[:] + self._download_lock.release() + if msg == "aborted": + show("Download aborted!") + self._show_progress(None) + else: + afterid = self.top.after(100, self._show_progress, None) + self._afterid["_monitor_message_queue"] = afterid + return + + # All other messages + elif isinstance(msg, ProgressMessage): + self._show_progress(msg.progress) + elif isinstance(msg, ErrorMessage): + show(msg.message) + if msg.package is not None: + self._select(msg.package.id) + self._show_progress(None) + self._downloading = False + return # halt progress. + elif isinstance(msg, StartCollectionMessage): + show("Downloading collection %r" % msg.collection.id) + self._log_indent += 1 + elif isinstance(msg, StartPackageMessage): + self._ds.clear_status_cache(msg.package.id) + show("Downloading package %r" % msg.package.id) + elif isinstance(msg, UpToDateMessage): + show("Package %s is up-to-date!" % msg.package.id) + # elif isinstance(msg, StaleMessage): + # show('Package %s is out-of-date or corrupt; updating it' % + # msg.package.id) + elif isinstance(msg, FinishDownloadMessage): + show("Finished downloading %r." % msg.package.id) + elif isinstance(msg, StartUnzipMessage): + show("Unzipping %s" % msg.package.filename) + elif isinstance(msg, FinishUnzipMessage): + show("Finished installing %s" % msg.package.id) + elif isinstance(msg, FinishCollectionMessage): + self._log_indent -= 1 + show("Finished downloading collection %r." % msg.collection.id) + self._clear_mark(msg.collection.id) + elif isinstance(msg, FinishPackageMessage): + self._update_table_status() + self._clear_mark(msg.package.id) + + # Let the user know when we're aborting a download (but + # waiting for a good point to abort it, so we don't end up + # with a partially unzipped package or anything like that). + if self._download_abort_queue: + self._progresslabel["text"] = "Aborting download..." + + # Clear the message queue and then release the lock + del self._download_msg_queue[:] + self._download_lock.release() + + # Check the queue again after MONITOR_QUEUE_DELAY msec. + afterid = self.top.after(self._MONITOR_QUEUE_DELAY, self._monitor_message_queue) + self._afterid["_monitor_message_queue"] = afterid + + +###################################################################### +# Helper Functions +###################################################################### +# [xx] It may make sense to move these to nltk.internals. + + +def md5_hexdigest(file): + """ + Calculate and return the MD5 checksum for a given file. + ``file`` may either be a filename or an open stream. + """ + if isinstance(file, str): + with open(file, "rb") as infile: + return _md5_hexdigest(infile) + return _md5_hexdigest(file) + + +def _md5_hexdigest(fp): + md5_digest = md5() + while True: + block = fp.read(1024 * 16) # 16k blocks + if not block: + break + md5_digest.update(block) + return md5_digest.hexdigest() + + +def sha256_hexdigest(file): + """ + Calculate and return the SHA-256 checksum for a given file. + ``file`` may either be a filename or an open stream. + """ + if isinstance(file, str): + with open(file, "rb") as infile: + return _sha256_hexdigest(infile) + return _sha256_hexdigest(file) + + +def _sha256_hexdigest(fp): + sha256_digest = sha256() + while True: + block = fp.read(1024 * 16) # 16k blocks + if not block: + break + sha256_digest.update(block) + return sha256_digest.hexdigest() + + +# change this to periodically yield progress messages? +# [xx] get rid of topdir parameter -- we should be checking +# this when we build the index, anyway. +def unzip(filename, root, verbose=True): + """ + Extract the contents of the zip file ``filename`` into the + directory ``root``. + """ + for message in _unzip_iter(filename, root, verbose): + if isinstance(message, ErrorMessage): + raise Exception(message) + + +def _validate_member(member, root_abs): + """ + Check a single ZIP member name for path-traversal and escape vectors. + + Returns ``None`` if the member is safe, or a human-readable error + string if the member must be rejected. Comparison prefixes are + derived from *root_abs* internally via ``os.path.normcase`` so that + callers cannot supply inconsistent values. + + Parameters + ---------- + member : str + The archive entry name (forward-slash separated, as stored in the ZIP). + root_abs : str + Absolute path of the extraction root (used to build candidate paths + and derive comparison prefixes via ``os.path.normcase``). + """ + if "\x00" in member: + return f"Null byte in entry name blocked: {member!r}" + + abs_prefix = os.path.normcase(root_abs).rstrip(os.sep) + os.sep + target_abs = os.path.normcase(os.path.abspath(os.path.join(root_abs, member))) + if not target_abs.startswith(abs_prefix): + return f"Zip Slip blocked: {member}" + + real_prefix = os.path.normcase(os.path.realpath(root_abs)).rstrip(os.sep) + os.sep + target_real = os.path.normcase(os.path.realpath(os.path.join(root_abs, member))) + if not target_real.startswith(real_prefix): + return f"Symlink escape blocked: {member}" + + return None + + +def _unzip_iter(filename, root, verbose=True): + """ + Secure ZIP extraction using validate-then-extract. + + All members are validated before any extraction occurs. If any member + fails validation the entire archive is rejected and nothing is written + to disk. + + Checks performed on every member name: + - Null-byte rejection (platform path-truncation vector) + - Zip-Slip (.., absolute paths, drive letters) + - Symlink-escape (writes through pre-existing symlinks) + + All path comparisons use ``os.path.normcase`` so that the checks + are case-insensitive on Windows (no-op on POSIX). + + Members are validated again immediately before each extraction as a + best-effort check against filesystem changes between Phase 1 and the + actual write, but this cannot eliminate TOCTOU races inherent in + non-atomic extraction. + + Extraction aborts on the first error (including I/O errors) rather + than skipping individual members. Partial extraction of a potentially + malicious archive is worse than no extraction. + """ + + if verbose: + sys.stdout.write("Unzipping %s" % os.path.split(filename)[1]) + sys.stdout.flush() + + try: + zf = ZipFile(filename) + except Exception as e: + yield ErrorMessage(filename, e) + # Flush the "Unzipping ..." line here because the try/finally that + # normally handles this is never entered (zf was never assigned). + if verbose: + print() + return + + try: + root_abs = os.path.abspath(root) + members = zf.namelist() + + # Phase 1 -- validate every member before touching the filesystem. + has_violations = False + for member in members: + error = _validate_member(member, root_abs) + if error is not None: + yield ErrorMessage(filename, error) + has_violations = True + continue + + if has_violations: + return + + # Phase 2 -- all members passed; extract. + try: + os.makedirs(root_abs, exist_ok=True) + except Exception as e: + yield ErrorMessage(filename, f"Extraction error: {e}") + return + + for member in members: + error = _validate_member(member, root_abs) + if error is not None: + yield ErrorMessage(filename, f"{error} (during extraction)") + return + try: + zf.extract(member, root_abs) + except Exception as e: + yield ErrorMessage(filename, f"Extraction error for {member}: {e}") + return + except Exception as e: + yield ErrorMessage(filename, f"Validation error: {e}") + finally: + zf.close() + if verbose: + print() + + +###################################################################### +# Index Builder +###################################################################### +# This may move to a different file sometime. + + +def build_index(root, base_url): + """ + Create a new data.xml index file, by combining the xml description + files for various packages and collections. ``root`` should be the + path to a directory containing the package xml and zip files; and + the collection xml files. The ``root`` directory is expected to + have the following subdirectories:: + + root/ + packages/ .................. subdirectory for packages + corpora/ ................. zip & xml files for corpora + grammars/ ................ zip & xml files for grammars + taggers/ ................. zip & xml files for taggers + tokenizers/ .............. zip & xml files for tokenizers + etc. + collections/ ............... xml files for collections + + For each package, there should be two files: ``package.zip`` + (where *package* is the package name) + which contains the package itself as a compressed zip file; and + ``package.xml``, which is an xml description of the package. The + zipfile ``package.zip`` should expand to a single subdirectory + named ``package/``. The base filename ``package`` must match + the identifier given in the package's xml file. + + For each collection, there should be a single file ``collection.zip`` + describing the collection, where *collection* is the name of the collection. + + All identifiers (for both packages and collections) must be unique. + """ + # Find all packages. + packages = [] + for pkg_xml, zf, subdir in _find_packages(os.path.join(root, "packages")): + zipstat = os.stat(zf.filename) + url = f"{base_url}/{subdir}/{os.path.split(zf.filename)[1]}" + unzipped_size = sum(zf_info.file_size for zf_info in zf.infolist()) + + # Fill in several fields of the package xml with calculated values. + pkg_xml.set("unzipped_size", "%s" % unzipped_size) + pkg_xml.set("size", "%s" % zipstat.st_size) + pkg_xml.set("checksum", "%s" % md5_hexdigest(zf.filename)) + pkg_xml.set("sha256_checksum", "%s" % sha256_hexdigest(zf.filename)) + pkg_xml.set("subdir", subdir) + # pkg_xml.set('svn_revision', _svn_revision(zf.filename)) + if not pkg_xml.get("url"): + pkg_xml.set("url", url) + + # Record the package. + packages.append(pkg_xml) + + # Find all collections + collections = list(_find_collections(os.path.join(root, "collections"))) + + # Check that all UIDs are unique + uids = set() + for item in packages + collections: + if item.get("id") in uids: + raise ValueError("Duplicate UID: %s" % item.get("id")) + uids.add(item.get("id")) + + # Put it all together + top_elt = ElementTree.Element("nltk_data") + top_elt.append(ElementTree.Element("packages")) + top_elt[0].extend(sorted(packages, key=lambda package: package.get("id"))) + top_elt.append(ElementTree.Element("collections")) + top_elt[1].extend(sorted(collections, key=lambda collection: collection.get("id"))) + + _indent_xml(top_elt) + return top_elt + + +def _indent_xml(xml, prefix=""): + """ + Helper for ``build_index()``: Given an XML ``ElementTree``, modify it + (and its descendents) ``text`` and ``tail`` attributes to generate + an indented tree, where each nested element is indented by 2 + spaces with respect to its parent. + """ + if len(xml) > 0: + xml.text = (xml.text or "").strip() + "\n" + prefix + " " + for child in xml: + _indent_xml(child, prefix + " ") + for child in xml[:-1]: + child.tail = (child.tail or "").strip() + "\n" + prefix + " " + xml[-1].tail = (xml[-1].tail or "").strip() + "\n" + prefix + + +def _check_package(pkg_xml, zipfilename, zf): + """ + Helper for ``build_index()``: Perform some checks to make sure that + the given package is consistent. + """ + # The filename must patch the id given in the XML file. + uid = os.path.splitext(os.path.split(zipfilename)[1])[0] + if pkg_xml.get("id") != uid: + raise ValueError( + "package identifier mismatch ({} vs {})".format(pkg_xml.get("id"), uid) + ) + + # Zip file must expand to a subdir whose name matches uid. + if sum((name != uid and not name.startswith(uid + "/")) for name in zf.namelist()): + raise ValueError( + "Zipfile %s.zip does not expand to a single " + "subdirectory %s/" % (uid, uid) + ) + + +# update for git? +def _svn_revision(filename): + """ + Helper for ``build_index()``: Calculate the subversion revision + number for a given file (by using ``subprocess`` to run ``svn``). + """ + p = subprocess.Popen( + ["svn", "status", "-v", filename], + stdout=subprocess.PIPE, + stderr=subprocess.PIPE, + ) + stdout, stderr = p.communicate() + if p.returncode != 0 or stderr or not stdout: + raise ValueError( + "Error determining svn_revision for %s: %s" + % (os.path.split(filename)[1], textwrap.fill(stderr)) + ) + return stdout.split()[2] + + +def _find_collections(root): + """ + Helper for ``build_index()``: Yield a list of ElementTree.Element + objects, each holding the xml for a single package collection. + """ + for dirname, _subdirs, files in os.walk(root): + for filename in files: + if filename.endswith(".xml"): + xmlfile = os.path.join(dirname, filename) + yield ElementTree.parse(xmlfile).getroot() + + +def _find_packages(root): + """ + Helper for ``build_index()``: Yield a list of tuples + ``(pkg_xml, zf, subdir)``, where: + - ``pkg_xml`` is an ``ElementTree.Element`` holding the xml for a + package + - ``zf`` is a ``ZipFile`` for the package's contents. + - ``subdir`` is the subdirectory (relative to ``root``) where + the package was found (e.g. 'corpora' or 'grammars'). + """ + from nltk.corpus.reader.util import _path_from + + # Find all packages. + packages = [] + for dirname, subdirs, files in os.walk(root): + relpath = "/".join(_path_from(root, dirname)) + for filename in files: + if filename.endswith(".xml"): + xmlfilename = os.path.join(dirname, filename) + zipfilename = xmlfilename[:-4] + ".zip" + try: + zf = ZipFile(zipfilename) + except Exception as e: + raise ValueError(f"Error reading file {zipfilename!r}!\n{e}") from e + try: + pkg_xml = ElementTree.parse(xmlfilename).getroot() + except Exception as e: + raise ValueError(f"Error reading file {xmlfilename!r}!\n{e}") from e + + # Check that the UID matches the filename + uid = os.path.split(xmlfilename[:-4])[1] + if pkg_xml.get("id") != uid: + raise ValueError( + "package identifier mismatch (%s " + "vs %s)" % (pkg_xml.get("id"), uid) + ) + + # Check that the zipfile expands to a subdir whose + # name matches the uid. + if sum( + (name != uid and not name.startswith(uid + "/")) + for name in zf.namelist() + ): + raise ValueError( + "Zipfile %s.zip does not expand to a " + "single subdirectory %s/" % (uid, uid) + ) + + yield pkg_xml, zf, relpath + + elif filename.endswith(".zip"): + # Warn user in case a .xml does not exist for a .zip + resourcename = os.path.splitext(filename)[0] + xmlfilename = os.path.join(dirname, resourcename + ".xml") + if not os.path.exists(xmlfilename): + warnings.warn( + f"{filename} exists, but {resourcename + '.xml'} cannot be found! " + f"This could mean that {resourcename} can not be downloaded.", + stacklevel=2, + ) + + # Don't recurse into svn subdirectories: + try: + subdirs.remove(".svn") + except ValueError: + pass + + +###################################################################### +# Main: +###################################################################### + +# There should be a command-line interface + +# Aliases +_downloader = Downloader() +download = _downloader.download + + +def download_shell(): + DownloaderShell(_downloader).run() + + +def download_gui(): + DownloaderGUI(_downloader).mainloop() + + +def update(): + _downloader.update() + + +if __name__ == "__main__": + from optparse import OptionParser + + parser = OptionParser() + parser.add_option( + "-d", + "--dir", + dest="dir", + help="download package to directory DIR", + metavar="DIR", + ) + parser.add_option( + "-q", + "--quiet", + dest="quiet", + action="store_true", + default=False, + help="work quietly", + ) + parser.add_option( + "-f", + "--force", + dest="force", + action="store_true", + default=False, + help="download even if already installed", + ) + parser.add_option( + "-e", + "--exit-on-error", + dest="halt_on_error", + action="store_true", + default=False, + help="exit if an error occurs", + ) + parser.add_option( + "-u", + "--url", + dest="server_index_url", + default=os.environ.get("NLTK_DOWNLOAD_URL"), + help="download server index url", + ) + + options, args = parser.parse_args() + + downloader = Downloader(server_index_url=options.server_index_url) + + if args: + for pkg_id in args: + rv = downloader.download( + info_or_id=pkg_id, + download_dir=options.dir, + quiet=options.quiet, + force=options.force, + halt_on_error=options.halt_on_error, + ) + if not rv and options.halt_on_error: + break + else: + downloader.download( + download_dir=options.dir, + quiet=options.quiet, + force=options.force, + halt_on_error=options.halt_on_error, + ) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/featstruct.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/featstruct.py new file mode 100644 index 0000000000000000000000000000000000000000..a7d5b01e02b0444fedb9e308a1e1cd519571132d --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/featstruct.py @@ -0,0 +1,2779 @@ +# Natural Language Toolkit: Feature Structures +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Edward Loper , +# Rob Speer, +# Steven Bird +# URL: +# For license information, see LICENSE.TXT + +""" +Basic data classes for representing feature structures, and for +performing basic operations on those feature structures. A feature +structure is a mapping from feature identifiers to feature values, +where each feature value is either a basic value (such as a string or +an integer), or a nested feature structure. There are two types of +feature structure, implemented by two subclasses of ``FeatStruct``: + + - feature dictionaries, implemented by ``FeatDict``, act like + Python dictionaries. Feature identifiers may be strings or + instances of the ``Feature`` class. + - feature lists, implemented by ``FeatList``, act like Python + lists. Feature identifiers are integers. + +Feature structures are typically used to represent partial information +about objects. A feature identifier that is not mapped to a value +stands for a feature whose value is unknown (*not* a feature without +a value). Two feature structures that represent (potentially +overlapping) information about the same object can be combined by +unification. When two inconsistent feature structures are unified, +the unification fails and returns None. + +Features can be specified using "feature paths", or tuples of feature +identifiers that specify path through the nested feature structures to +a value. Feature structures may contain reentrant feature values. A +"reentrant feature value" is a single feature value that can be +accessed via multiple feature paths. Unification preserves the +reentrance relations imposed by both of the unified feature +structures. In the feature structure resulting from unification, any +modifications to a reentrant feature value will be visible using any +of its feature paths. + +Feature structure variables are encoded using the ``nltk.sem.Variable`` +class. The variables' values are tracked using a bindings +dictionary, which maps variables to their values. When two feature +structures are unified, a fresh bindings dictionary is created to +track their values; and before unification completes, all bound +variables are replaced by their values. Thus, the bindings +dictionaries are usually strictly internal to the unification process. +However, it is possible to track the bindings of variables if you +choose to, by supplying your own initial bindings dictionary to the +``unify()`` function. + +When unbound variables are unified with one another, they become +aliased. This is encoded by binding one variable to the other. + +Lightweight Feature Structures +============================== +Many of the functions defined by ``nltk.featstruct`` can be applied +directly to simple Python dictionaries and lists, rather than to +full-fledged ``FeatDict`` and ``FeatList`` objects. In other words, +Python ``dicts`` and ``lists`` can be used as "light-weight" feature +structures. + + >>> from nltk.featstruct import unify + >>> unify(dict(x=1, y=dict()), dict(a='a', y=dict(b='b'))) # doctest: +SKIP + {'y': {'b': 'b'}, 'x': 1, 'a': 'a'} + +However, you should keep in mind the following caveats: + + - Python dictionaries & lists ignore reentrance when checking for + equality between values. But two FeatStructs with different + reentrances are considered nonequal, even if all their base + values are equal. + + - FeatStructs can be easily frozen, allowing them to be used as + keys in hash tables. Python dictionaries and lists can not. + + - FeatStructs display reentrance in their string representations; + Python dictionaries and lists do not. + + - FeatStructs may *not* be mixed with Python dictionaries and lists + (e.g., when performing unification). + + - FeatStructs provide a number of useful methods, such as ``walk()`` + and ``cyclic()``, which are not available for Python dicts and lists. + +In general, if your feature structures will contain any reentrances, +or if you plan to use them as dictionary keys, it is strongly +recommended that you use full-fledged ``FeatStruct`` objects. +""" + +import copy +import re +from functools import total_ordering + +from nltk.internals import raise_unorderable_types, read_str +from nltk.sem.logic import ( + Expression, + LogicalExpressionException, + LogicParser, + SubstituteBindingsI, + Variable, +) + +###################################################################### +# Feature Structure +###################################################################### + + +@total_ordering +class FeatStruct(SubstituteBindingsI): + """ + A mapping from feature identifiers to feature values, where each + feature value is either a basic value (such as a string or an + integer), or a nested feature structure. There are two types of + feature structure: + + - feature dictionaries, implemented by ``FeatDict``, act like + Python dictionaries. Feature identifiers may be strings or + instances of the ``Feature`` class. + - feature lists, implemented by ``FeatList``, act like Python + lists. Feature identifiers are integers. + + Feature structures may be indexed using either simple feature + identifiers or 'feature paths.' A feature path is a sequence + of feature identifiers that stand for a corresponding sequence of + indexing operations. In particular, ``fstruct[(f1,f2,...,fn)]`` is + equivalent to ``fstruct[f1][f2]...[fn]``. + + Feature structures may contain reentrant feature structures. A + "reentrant feature structure" is a single feature structure + object that can be accessed via multiple feature paths. Feature + structures may also be cyclic. A feature structure is "cyclic" + if there is any feature path from the feature structure to itself. + + Two feature structures are considered equal if they assign the + same values to all features, and have the same reentrancies. + + By default, feature structures are mutable. They may be made + immutable with the ``freeze()`` method. Once they have been + frozen, they may be hashed, and thus used as dictionary keys. + """ + + _frozen = False + """:ivar: A flag indicating whether this feature structure is + frozen or not. Once this flag is set, it should never be + un-set; and no further modification should be made to this + feature structure.""" + + ##//////////////////////////////////////////////////////////// + # { Constructor + ##//////////////////////////////////////////////////////////// + + def __new__(cls, features=None, **morefeatures): + """ + Construct and return a new feature structure. If this + constructor is called directly, then the returned feature + structure will be an instance of either the ``FeatDict`` class + or the ``FeatList`` class. + + :param features: The initial feature values for this feature + structure: + + - FeatStruct(string) -> FeatStructReader().read(string) + - FeatStruct(mapping) -> FeatDict(mapping) + - FeatStruct(sequence) -> FeatList(sequence) + - FeatStruct() -> FeatDict() + :param morefeatures: If ``features`` is a mapping or None, + then ``morefeatures`` provides additional features for the + ``FeatDict`` constructor. + """ + # If the FeatStruct constructor is called directly, then decide + # whether to create a FeatDict or a FeatList, based on the + # contents of the `features` argument. + if cls is FeatStruct: + if features is None: + return FeatDict.__new__(FeatDict, **morefeatures) + elif _is_mapping(features): + return FeatDict.__new__(FeatDict, features, **morefeatures) + elif morefeatures: + raise TypeError( + "Keyword arguments may only be specified " + "if features is None or is a mapping." + ) + if isinstance(features, str): + if FeatStructReader._START_FDICT_RE.match(features): + return FeatDict.__new__(FeatDict, features, **morefeatures) + else: + return FeatList.__new__(FeatList, features, **morefeatures) + elif _is_sequence(features): + return FeatList.__new__(FeatList, features) + else: + raise TypeError("Expected string or mapping or sequence") + + # Otherwise, construct the object as normal. + else: + return super().__new__(cls, features, **morefeatures) + + ##//////////////////////////////////////////////////////////// + # { Uniform Accessor Methods + ##//////////////////////////////////////////////////////////// + # These helper functions allow the methods defined by FeatStruct + # to treat all feature structures as mappings, even if they're + # really lists. (Lists are treated as mappings from ints to vals) + + def _keys(self): + """Return an iterable of the feature identifiers used by this + FeatStruct.""" + raise NotImplementedError() # Implemented by subclasses. + + def _values(self): + """Return an iterable of the feature values directly defined + by this FeatStruct.""" + raise NotImplementedError() # Implemented by subclasses. + + def _items(self): + """Return an iterable of (fid,fval) pairs, where fid is a + feature identifier and fval is the corresponding feature + value, for all features defined by this FeatStruct.""" + raise NotImplementedError() # Implemented by subclasses. + + ##//////////////////////////////////////////////////////////// + # { Equality & Hashing + ##//////////////////////////////////////////////////////////// + + def equal_values(self, other, check_reentrance=False): + """ + Return True if ``self`` and ``other`` assign the same value to + to every feature. In particular, return true if + ``self[p]==other[p]`` for every feature path *p* such + that ``self[p]`` or ``other[p]`` is a base value (i.e., + not a nested feature structure). + + :param check_reentrance: If True, then also return False if + there is any difference between the reentrances of ``self`` + and ``other``. + :note: the ``==`` is equivalent to ``equal_values()`` with + ``check_reentrance=True``. + """ + return self._equal(other, check_reentrance, set(), set(), set()) + + def __eq__(self, other): + """ + Return true if ``self`` and ``other`` are both feature structures, + assign the same values to all features, and contain the same + reentrances. I.e., return + ``self.equal_values(other, check_reentrance=True)``. + + :see: ``equal_values()`` + """ + return self._equal(other, True, set(), set(), set()) + + def __ne__(self, other): + return not self == other + + def __lt__(self, other): + if not isinstance(other, FeatStruct): + # raise_unorderable_types("<", self, other) + # Sometimes feature values can be pure strings, + # so we need to be able to compare with non-featstructs: + return self.__class__.__name__ < other.__class__.__name__ + else: + return len(self) < len(other) + + def __hash__(self): + """ + If this feature structure is frozen, return its hash value; + otherwise, raise ``TypeError``. + """ + if not self._frozen: + raise TypeError("FeatStructs must be frozen before they " "can be hashed.") + try: + return self._hash + except AttributeError: + self._hash = self._calculate_hashvalue(set()) + return self._hash + + def _equal( + self, other, check_reentrance, visited_self, visited_other, visited_pairs + ): + """ + Return True iff self and other have equal values. + + :param visited_self: A set containing the ids of all ``self`` + feature structures we've already visited. + :param visited_other: A set containing the ids of all ``other`` + feature structures we've already visited. + :param visited_pairs: A set containing ``(selfid, otherid)`` pairs + for all pairs of feature structures we've already visited. + """ + # If we're the same object, then we're equal. + if self is other: + return True + + # If we have different classes, we're definitely not equal. + if self.__class__ != other.__class__: + return False + + # If we define different features, we're definitely not equal. + # (Perform len test first because it's faster -- we should + # do profiling to see if this actually helps) + if len(self) != len(other): + return False + if set(self._keys()) != set(other._keys()): + return False + + # If we're checking reentrance, then any time we revisit a + # structure, make sure that it was paired with the same + # feature structure that it is now. Note: if check_reentrance, + # then visited_pairs will never contain two pairs whose first + # values are equal, or two pairs whose second values are equal. + if check_reentrance: + if id(self) in visited_self or id(other) in visited_other: + return (id(self), id(other)) in visited_pairs + + # If we're not checking reentrance, then we still need to deal + # with cycles. If we encounter the same (self, other) pair a + # second time, then we won't learn anything more by examining + # their children a second time, so just return true. + else: + if (id(self), id(other)) in visited_pairs: + return True + + # Keep track of which nodes we've visited. + visited_self.add(id(self)) + visited_other.add(id(other)) + visited_pairs.add((id(self), id(other))) + + # Now we have to check all values. If any of them don't match, + # then return false. + for fname, self_fval in self._items(): + other_fval = other[fname] + if isinstance(self_fval, FeatStruct): + if not self_fval._equal( + other_fval, + check_reentrance, + visited_self, + visited_other, + visited_pairs, + ): + return False + else: + if self_fval != other_fval: + return False + + # Everything matched up; return true. + return True + + def _calculate_hashvalue(self, visited): + """ + Return a hash value for this feature structure. + + :require: ``self`` must be frozen. + :param visited: A set containing the ids of all feature + structures we've already visited while hashing. + """ + if id(self) in visited: + return 1 + visited.add(id(self)) + + hashval = 5831 + for fname, fval in sorted(self._items()): + hashval *= 37 + hashval += hash(fname) + hashval *= 37 + if isinstance(fval, FeatStruct): + hashval += fval._calculate_hashvalue(visited) + else: + hashval += hash(fval) + # Convert to a 32 bit int. + hashval = int(hashval & 0x7FFFFFFF) + return hashval + + ##//////////////////////////////////////////////////////////// + # { Freezing + ##//////////////////////////////////////////////////////////// + + #: Error message used by mutating methods when called on a frozen + #: feature structure. + _FROZEN_ERROR = "Frozen FeatStructs may not be modified." + + def freeze(self): + """ + Make this feature structure, and any feature structures it + contains, immutable. Note: this method does not attempt to + 'freeze' any feature value that is not a ``FeatStruct``; it + is recommended that you use only immutable feature values. + """ + if self._frozen: + return + self._freeze(set()) + + def frozen(self): + """ + Return True if this feature structure is immutable. Feature + structures can be made immutable with the ``freeze()`` method. + Immutable feature structures may not be made mutable again, + but new mutable copies can be produced with the ``copy()`` method. + """ + return self._frozen + + def _freeze(self, visited): + """ + Make this feature structure, and any feature structure it + contains, immutable. + + :param visited: A set containing the ids of all feature + structures we've already visited while freezing. + """ + if id(self) in visited: + return + visited.add(id(self)) + self._frozen = True + for fname, fval in sorted(self._items()): + if isinstance(fval, FeatStruct): + fval._freeze(visited) + + ##//////////////////////////////////////////////////////////// + # { Copying + ##//////////////////////////////////////////////////////////// + + def copy(self, deep=True): + """ + Return a new copy of ``self``. The new copy will not be frozen. + + :param deep: If true, create a deep copy; if false, create + a shallow copy. + """ + if deep: + return copy.deepcopy(self) + else: + return self.__class__(self) + + # Subclasses should define __deepcopy__ to ensure that the new + # copy will not be frozen. + def __deepcopy__(self, memo): + raise NotImplementedError() # Implemented by subclasses. + + ##//////////////////////////////////////////////////////////// + # { Structural Information + ##//////////////////////////////////////////////////////////// + + def cyclic(self): + """ + Return True if this feature structure contains itself. + """ + return self._find_reentrances({})[id(self)] + + def walk(self): + """ + Return an iterator that generates this feature structure, and + each feature structure it contains. Each feature structure will + be generated exactly once. + """ + return self._walk(set()) + + def _walk(self, visited): + """ + Return an iterator that generates this feature structure, and + each feature structure it contains. + + :param visited: A set containing the ids of all feature + structures we've already visited while freezing. + """ + raise NotImplementedError() # Implemented by subclasses. + + def _walk(self, visited): + if id(self) in visited: + return + visited.add(id(self)) + yield self + for fval in self._values(): + if isinstance(fval, FeatStruct): + yield from fval._walk(visited) + + # Walk through the feature tree. The first time we see a feature + # value, map it to False (not reentrant). If we see a feature + # value more than once, then map it to True (reentrant). + def _find_reentrances(self, reentrances): + """ + Return a dictionary that maps from the ``id`` of each feature + structure contained in ``self`` (including ``self``) to a + boolean value, indicating whether it is reentrant or not. + """ + if id(self) in reentrances: + # We've seen it more than once. + reentrances[id(self)] = True + else: + # This is the first time we've seen it. + reentrances[id(self)] = False + + # Recurse to contained feature structures. + for fval in self._values(): + if isinstance(fval, FeatStruct): + fval._find_reentrances(reentrances) + + return reentrances + + ##//////////////////////////////////////////////////////////// + # { Variables & Bindings + ##//////////////////////////////////////////////////////////// + + def substitute_bindings(self, bindings): + """:see: ``nltk.featstruct.substitute_bindings()``""" + return substitute_bindings(self, bindings) + + def retract_bindings(self, bindings): + """:see: ``nltk.featstruct.retract_bindings()``""" + return retract_bindings(self, bindings) + + def variables(self): + """:see: ``nltk.featstruct.find_variables()``""" + return find_variables(self) + + def rename_variables(self, vars=None, used_vars=(), new_vars=None): + """:see: ``nltk.featstruct.rename_variables()``""" + return rename_variables(self, vars, used_vars, new_vars) + + def remove_variables(self): + """ + Return the feature structure that is obtained by deleting + any feature whose value is a ``Variable``. + + :rtype: FeatStruct + """ + return remove_variables(self) + + ##//////////////////////////////////////////////////////////// + # { Unification + ##//////////////////////////////////////////////////////////// + + def unify(self, other, bindings=None, trace=False, fail=None, rename_vars=True): + return unify(self, other, bindings, trace, fail, rename_vars) + + def subsumes(self, other): + """ + Return True if ``self`` subsumes ``other``. I.e., return true + If unifying ``self`` with ``other`` would result in a feature + structure equal to ``other``. + """ + return subsumes(self, other) + + ##//////////////////////////////////////////////////////////// + # { String Representations + ##//////////////////////////////////////////////////////////// + + def __repr__(self): + """ + Display a single-line representation of this feature structure, + suitable for embedding in other representations. + """ + return self._repr(self._find_reentrances({}), {}) + + def _repr(self, reentrances, reentrance_ids): + """ + Return a string representation of this feature structure. + + :param reentrances: A dictionary that maps from the ``id`` of + each feature value in self, indicating whether that value + is reentrant or not. + :param reentrance_ids: A dictionary mapping from each ``id`` + of a feature value to a unique identifier. This is modified + by ``repr``: the first time a reentrant feature value is + displayed, an identifier is added to ``reentrance_ids`` for it. + """ + raise NotImplementedError() + + +# Mutation: disable if frozen. +_FROZEN_ERROR = "Frozen FeatStructs may not be modified." +_FROZEN_NOTICE = "\n%sIf self is frozen, raise ValueError." + + +def _check_frozen(method, indent=""): + """ + Given a method function, return a new method function that first + checks if ``self._frozen`` is true; and if so, raises ``ValueError`` + with an appropriate message. Otherwise, call the method and return + its result. + """ + + def wrapped(self, *args, **kwargs): + if self._frozen: + raise ValueError(_FROZEN_ERROR) + else: + return method(self, *args, **kwargs) + + wrapped.__name__ = method.__name__ + wrapped.__doc__ = (method.__doc__ or "") + (_FROZEN_NOTICE % indent) + return wrapped + + +###################################################################### +# Feature Dictionary +###################################################################### + + +class FeatDict(FeatStruct, dict): + """ + A feature structure that acts like a Python dictionary. I.e., a + mapping from feature identifiers to feature values, where a feature + identifier can be a string or a ``Feature``; and where a feature value + can be either a basic value (such as a string or an integer), or a nested + feature structure. A feature identifiers for a ``FeatDict`` is + sometimes called a "feature name". + + Two feature dicts are considered equal if they assign the same + values to all features, and have the same reentrances. + + :see: ``FeatStruct`` for information about feature paths, reentrance, + cyclic feature structures, mutability, freezing, and hashing. + """ + + def __init__(self, features=None, **morefeatures): + """ + Create a new feature dictionary, with the specified features. + + :param features: The initial value for this feature + dictionary. If ``features`` is a ``FeatStruct``, then its + features are copied (shallow copy). If ``features`` is a + dict, then a feature is created for each item, mapping its + key to its value. If ``features`` is a string, then it is + processed using ``FeatStructReader``. If ``features`` is a list of + tuples ``(name, val)``, then a feature is created for each tuple. + :param morefeatures: Additional features for the new feature + dictionary. If a feature is listed under both ``features`` and + ``morefeatures``, then the value from ``morefeatures`` will be + used. + """ + if isinstance(features, str): + FeatStructReader().fromstring(features, self) + self.update(**morefeatures) + else: + # update() checks the types of features. + self.update(features, **morefeatures) + + # //////////////////////////////////////////////////////////// + # { Dict methods + # //////////////////////////////////////////////////////////// + _INDEX_ERROR = "Expected feature name or path. Got %r." + + def __getitem__(self, name_or_path): + """If the feature with the given name or path exists, return + its value; otherwise, raise ``KeyError``.""" + if isinstance(name_or_path, (str, Feature)): + return dict.__getitem__(self, name_or_path) + elif isinstance(name_or_path, tuple): + try: + val = self + for fid in name_or_path: + if not isinstance(val, FeatStruct): + raise KeyError # path contains base value + val = val[fid] + return val + except (KeyError, IndexError) as e: + raise KeyError(name_or_path) from e + else: + raise TypeError(self._INDEX_ERROR % name_or_path) + + def get(self, name_or_path, default=None): + """If the feature with the given name or path exists, return its + value; otherwise, return ``default``.""" + try: + return self[name_or_path] + except KeyError: + return default + + def __contains__(self, name_or_path): + """Return true if a feature with the given name or path exists.""" + try: + self[name_or_path] + return True + except KeyError: + return False + + def has_key(self, name_or_path): + """Return true if a feature with the given name or path exists.""" + return name_or_path in self + + def __delitem__(self, name_or_path): + """If the feature with the given name or path exists, delete + its value; otherwise, raise ``KeyError``.""" + if self._frozen: + raise ValueError(_FROZEN_ERROR) + if isinstance(name_or_path, (str, Feature)): + return dict.__delitem__(self, name_or_path) + elif isinstance(name_or_path, tuple): + if len(name_or_path) == 0: + raise ValueError("The path () can not be set") + else: + parent = self[name_or_path[:-1]] + if not isinstance(parent, FeatStruct): + raise KeyError(name_or_path) # path contains base value + del parent[name_or_path[-1]] + else: + raise TypeError(self._INDEX_ERROR % name_or_path) + + def __setitem__(self, name_or_path, value): + """Set the value for the feature with the given name or path + to ``value``. If ``name_or_path`` is an invalid path, raise + ``KeyError``.""" + if self._frozen: + raise ValueError(_FROZEN_ERROR) + if isinstance(name_or_path, (str, Feature)): + return dict.__setitem__(self, name_or_path, value) + elif isinstance(name_or_path, tuple): + if len(name_or_path) == 0: + raise ValueError("The path () can not be set") + else: + parent = self[name_or_path[:-1]] + if not isinstance(parent, FeatStruct): + raise KeyError(name_or_path) # path contains base value + parent[name_or_path[-1]] = value + else: + raise TypeError(self._INDEX_ERROR % name_or_path) + + clear = _check_frozen(dict.clear) + pop = _check_frozen(dict.pop) + popitem = _check_frozen(dict.popitem) + setdefault = _check_frozen(dict.setdefault) + + def update(self, features=None, **morefeatures): + if self._frozen: + raise ValueError(_FROZEN_ERROR) + if features is None: + items = () + elif hasattr(features, "items") and callable(features.items): + items = features.items() + elif hasattr(features, "__iter__"): + items = features + else: + raise ValueError("Expected mapping or list of tuples") + + for key, val in items: + if not isinstance(key, (str, Feature)): + raise TypeError("Feature names must be strings") + self[key] = val + for key, val in morefeatures.items(): + if not isinstance(key, (str, Feature)): + raise TypeError("Feature names must be strings") + self[key] = val + + ##//////////////////////////////////////////////////////////// + # { Copying + ##//////////////////////////////////////////////////////////// + + def __deepcopy__(self, memo): + memo[id(self)] = selfcopy = self.__class__() + for key, val in self._items(): + selfcopy[copy.deepcopy(key, memo)] = copy.deepcopy(val, memo) + return selfcopy + + ##//////////////////////////////////////////////////////////// + # { Uniform Accessor Methods + ##//////////////////////////////////////////////////////////// + + def _keys(self): + return self.keys() + + def _values(self): + return self.values() + + def _items(self): + return self.items() + + ##//////////////////////////////////////////////////////////// + # { String Representations + ##//////////////////////////////////////////////////////////// + + def __str__(self): + """ + Display a multi-line representation of this feature dictionary + as an FVM (feature value matrix). + """ + return "\n".join(self._str(self._find_reentrances({}), {})) + + def _repr(self, reentrances, reentrance_ids): + segments = [] + prefix = "" + suffix = "" + + # If this is the first time we've seen a reentrant structure, + # then assign it a unique identifier. + if reentrances[id(self)]: + assert id(self) not in reentrance_ids + reentrance_ids[id(self)] = repr(len(reentrance_ids) + 1) + + # sorting note: keys are unique strings, so we'll never fall + # through to comparing values. + for fname, fval in sorted(self.items()): + display = getattr(fname, "display", None) + if id(fval) in reentrance_ids: + segments.append(f"{fname}->({reentrance_ids[id(fval)]})") + elif ( + display == "prefix" and not prefix and isinstance(fval, (Variable, str)) + ): + prefix = "%s" % fval + elif display == "slash" and not suffix: + if isinstance(fval, Variable): + suffix = "/%s" % fval.name + else: + suffix = "/%s" % repr(fval) + elif isinstance(fval, Variable): + segments.append(f"{fname}={fval.name}") + elif fval is True: + segments.append("+%s" % fname) + elif fval is False: + segments.append("-%s" % fname) + elif isinstance(fval, Expression): + segments.append(f"{fname}=<{fval}>") + elif not isinstance(fval, FeatStruct): + segments.append(f"{fname}={repr(fval)}") + else: + fval_repr = fval._repr(reentrances, reentrance_ids) + segments.append(f"{fname}={fval_repr}") + # If it's reentrant, then add on an identifier tag. + if reentrances[id(self)]: + prefix = f"({reentrance_ids[id(self)]}){prefix}" + return "{}[{}]{}".format(prefix, ", ".join(segments), suffix) + + def _str(self, reentrances, reentrance_ids): + """ + :return: A list of lines composing a string representation of + this feature dictionary. + :param reentrances: A dictionary that maps from the ``id`` of + each feature value in self, indicating whether that value + is reentrant or not. + :param reentrance_ids: A dictionary mapping from each ``id`` + of a feature value to a unique identifier. This is modified + by ``repr``: the first time a reentrant feature value is + displayed, an identifier is added to ``reentrance_ids`` for + it. + """ + # If this is the first time we've seen a reentrant structure, + # then tack on an id string. + if reentrances[id(self)]: + assert id(self) not in reentrance_ids + reentrance_ids[id(self)] = repr(len(reentrance_ids) + 1) + + # Special case: empty feature dict. + if len(self) == 0: + if reentrances[id(self)]: + return ["(%s) []" % reentrance_ids[id(self)]] + else: + return ["[]"] + + # What's the longest feature name? Use this to align names. + maxfnamelen = max(len("%s" % k) for k in self.keys()) + + lines = [] + # sorting note: keys are unique strings, so we'll never fall + # through to comparing values. + for fname, fval in sorted(self.items()): + fname = ("%s" % fname).ljust(maxfnamelen) + if isinstance(fval, Variable): + lines.append(f"{fname} = {fval.name}") + + elif isinstance(fval, Expression): + lines.append(f"{fname} = <{fval}>") + + elif isinstance(fval, FeatList): + fval_repr = fval._repr(reentrances, reentrance_ids) + lines.append(f"{fname} = {repr(fval_repr)}") + + elif not isinstance(fval, FeatDict): + # It's not a nested feature structure -- just print it. + lines.append(f"{fname} = {repr(fval)}") + + elif id(fval) in reentrance_ids: + # It's a feature structure we've seen before -- print + # the reentrance id. + lines.append(f"{fname} -> ({reentrance_ids[id(fval)]})") + + else: + # It's a new feature structure. Separate it from + # other values by a blank line. + if lines and lines[-1] != "": + lines.append("") + + # Recursively print the feature's value (fval). + fval_lines = fval._str(reentrances, reentrance_ids) + + # Indent each line to make room for fname. + fval_lines = [(" " * (maxfnamelen + 3)) + l for l in fval_lines] + + # Pick which line we'll display fname on, & splice it in. + nameline = (len(fval_lines) - 1) // 2 + fval_lines[nameline] = ( + fname + " =" + fval_lines[nameline][maxfnamelen + 2 :] + ) + + # Add the feature structure to the output. + lines += fval_lines + + # Separate FeatStructs by a blank line. + lines.append("") + + # Get rid of any excess blank lines. + if lines[-1] == "": + lines.pop() + + # Add brackets around everything. + maxlen = max(len(line) for line in lines) + lines = ["[ {}{} ]".format(line, " " * (maxlen - len(line))) for line in lines] + + # If it's reentrant, then add on an identifier tag. + if reentrances[id(self)]: + idstr = "(%s) " % reentrance_ids[id(self)] + lines = [(" " * len(idstr)) + l for l in lines] + idline = (len(lines) - 1) // 2 + lines[idline] = idstr + lines[idline][len(idstr) :] + + return lines + + +###################################################################### +# Feature List +###################################################################### + + +class FeatList(FeatStruct, list): + """ + A list of feature values, where each feature value is either a + basic value (such as a string or an integer), or a nested feature + structure. + + Feature lists may contain reentrant feature values. A "reentrant + feature value" is a single feature value that can be accessed via + multiple feature paths. Feature lists may also be cyclic. + + Two feature lists are considered equal if they assign the same + values to all features, and have the same reentrances. + + :see: ``FeatStruct`` for information about feature paths, reentrance, + cyclic feature structures, mutability, freezing, and hashing. + """ + + def __init__(self, features=()): + """ + Create a new feature list, with the specified features. + + :param features: The initial list of features for this feature + list. If ``features`` is a string, then it is paresd using + ``FeatStructReader``. Otherwise, it should be a sequence + of basic values and nested feature structures. + """ + if isinstance(features, str): + FeatStructReader().fromstring(features, self) + else: + list.__init__(self, features) + + # //////////////////////////////////////////////////////////// + # { List methods + # //////////////////////////////////////////////////////////// + _INDEX_ERROR = "Expected int or feature path. Got %r." + + def __getitem__(self, name_or_path): + if isinstance(name_or_path, int): + return list.__getitem__(self, name_or_path) + elif isinstance(name_or_path, tuple): + try: + val = self + for fid in name_or_path: + if not isinstance(val, FeatStruct): + raise KeyError # path contains base value + val = val[fid] + return val + except (KeyError, IndexError) as e: + raise KeyError(name_or_path) from e + else: + raise TypeError(self._INDEX_ERROR % name_or_path) + + def __delitem__(self, name_or_path): + """If the feature with the given name or path exists, delete + its value; otherwise, raise ``KeyError``.""" + if self._frozen: + raise ValueError(_FROZEN_ERROR) + if isinstance(name_or_path, (int, slice)): + return list.__delitem__(self, name_or_path) + elif isinstance(name_or_path, tuple): + if len(name_or_path) == 0: + raise ValueError("The path () can not be set") + else: + parent = self[name_or_path[:-1]] + if not isinstance(parent, FeatStruct): + raise KeyError(name_or_path) # path contains base value + del parent[name_or_path[-1]] + else: + raise TypeError(self._INDEX_ERROR % name_or_path) + + def __setitem__(self, name_or_path, value): + """Set the value for the feature with the given name or path + to ``value``. If ``name_or_path`` is an invalid path, raise + ``KeyError``.""" + if self._frozen: + raise ValueError(_FROZEN_ERROR) + if isinstance(name_or_path, (int, slice)): + return list.__setitem__(self, name_or_path, value) + elif isinstance(name_or_path, tuple): + if len(name_or_path) == 0: + raise ValueError("The path () can not be set") + else: + parent = self[name_or_path[:-1]] + if not isinstance(parent, FeatStruct): + raise KeyError(name_or_path) # path contains base value + parent[name_or_path[-1]] = value + else: + raise TypeError(self._INDEX_ERROR % name_or_path) + + # __delslice__ = _check_frozen(list.__delslice__, ' ') + # __setslice__ = _check_frozen(list.__setslice__, ' ') + __iadd__ = _check_frozen(list.__iadd__) + __imul__ = _check_frozen(list.__imul__) + append = _check_frozen(list.append) + extend = _check_frozen(list.extend) + insert = _check_frozen(list.insert) + pop = _check_frozen(list.pop) + remove = _check_frozen(list.remove) + reverse = _check_frozen(list.reverse) + sort = _check_frozen(list.sort) + + ##//////////////////////////////////////////////////////////// + # { Copying + ##//////////////////////////////////////////////////////////// + + def __deepcopy__(self, memo): + memo[id(self)] = selfcopy = self.__class__() + selfcopy.extend(copy.deepcopy(fval, memo) for fval in self) + return selfcopy + + ##//////////////////////////////////////////////////////////// + # { Uniform Accessor Methods + ##//////////////////////////////////////////////////////////// + + def _keys(self): + return list(range(len(self))) + + def _values(self): + return self + + def _items(self): + return enumerate(self) + + ##//////////////////////////////////////////////////////////// + # { String Representations + ##//////////////////////////////////////////////////////////// + + # Special handling for: reentrances, variables, expressions. + def _repr(self, reentrances, reentrance_ids): + # If this is the first time we've seen a reentrant structure, + # then assign it a unique identifier. + if reentrances[id(self)]: + assert id(self) not in reentrance_ids + reentrance_ids[id(self)] = repr(len(reentrance_ids) + 1) + prefix = "(%s)" % reentrance_ids[id(self)] + else: + prefix = "" + + segments = [] + for fval in self: + if id(fval) in reentrance_ids: + segments.append("->(%s)" % reentrance_ids[id(fval)]) + elif isinstance(fval, Variable): + segments.append(fval.name) + elif isinstance(fval, Expression): + segments.append("%s" % fval) + elif isinstance(fval, FeatStruct): + segments.append(fval._repr(reentrances, reentrance_ids)) + else: + segments.append("%s" % repr(fval)) + + return "{}[{}]".format(prefix, ", ".join(segments)) + + +###################################################################### +# Variables & Bindings +###################################################################### + + +def substitute_bindings(fstruct, bindings, fs_class="default"): + """ + Return the feature structure that is obtained by replacing each + variable bound by ``bindings`` with its binding. If a variable is + aliased to a bound variable, then it will be replaced by that + variable's value. If a variable is aliased to an unbound + variable, then it will be replaced by that variable. + + :type bindings: dict(Variable -> any) + :param bindings: A dictionary mapping from variables to values. + """ + if fs_class == "default": + fs_class = _default_fs_class(fstruct) + fstruct = copy.deepcopy(fstruct) + _substitute_bindings(fstruct, bindings, fs_class, set()) + return fstruct + + +def _substitute_bindings(fstruct, bindings, fs_class, visited): + # Visit each node only once: + if id(fstruct) in visited: + return + visited.add(id(fstruct)) + + if _is_mapping(fstruct): + items = fstruct.items() + elif _is_sequence(fstruct): + items = enumerate(fstruct) + else: + raise ValueError("Expected mapping or sequence") + for fname, fval in items: + while isinstance(fval, Variable) and fval in bindings: + fval = fstruct[fname] = bindings[fval] + if isinstance(fval, fs_class): + _substitute_bindings(fval, bindings, fs_class, visited) + elif isinstance(fval, SubstituteBindingsI): + fstruct[fname] = fval.substitute_bindings(bindings) + + +def retract_bindings(fstruct, bindings, fs_class="default"): + """ + Return the feature structure that is obtained by replacing each + feature structure value that is bound by ``bindings`` with the + variable that binds it. A feature structure value must be + identical to a bound value (i.e., have equal id) to be replaced. + + ``bindings`` is modified to point to this new feature structure, + rather than the original feature structure. Feature structure + values in ``bindings`` may be modified if they are contained in + ``fstruct``. + """ + if fs_class == "default": + fs_class = _default_fs_class(fstruct) + (fstruct, new_bindings) = copy.deepcopy((fstruct, bindings)) + bindings.update(new_bindings) + inv_bindings = {id(val): var for (var, val) in bindings.items()} + _retract_bindings(fstruct, inv_bindings, fs_class, set()) + return fstruct + + +def _retract_bindings(fstruct, inv_bindings, fs_class, visited): + # Visit each node only once: + if id(fstruct) in visited: + return + visited.add(id(fstruct)) + + if _is_mapping(fstruct): + items = fstruct.items() + elif _is_sequence(fstruct): + items = enumerate(fstruct) + else: + raise ValueError("Expected mapping or sequence") + for fname, fval in items: + if isinstance(fval, fs_class): + if id(fval) in inv_bindings: + fstruct[fname] = inv_bindings[id(fval)] + _retract_bindings(fval, inv_bindings, fs_class, visited) + + +def find_variables(fstruct, fs_class="default"): + """ + :return: The set of variables used by this feature structure. + :rtype: set(Variable) + """ + if fs_class == "default": + fs_class = _default_fs_class(fstruct) + return _variables(fstruct, set(), fs_class, set()) + + +def _variables(fstruct, vars, fs_class, visited): + # Visit each node only once: + if id(fstruct) in visited: + return + visited.add(id(fstruct)) + if _is_mapping(fstruct): + items = fstruct.items() + elif _is_sequence(fstruct): + items = enumerate(fstruct) + else: + raise ValueError("Expected mapping or sequence") + for fname, fval in items: + if isinstance(fval, Variable): + vars.add(fval) + elif isinstance(fval, fs_class): + _variables(fval, vars, fs_class, visited) + elif isinstance(fval, SubstituteBindingsI): + vars.update(fval.variables()) + return vars + + +def rename_variables( + fstruct, vars=None, used_vars=(), new_vars=None, fs_class="default" +): + """ + Return the feature structure that is obtained by replacing + any of this feature structure's variables that are in ``vars`` + with new variables. The names for these new variables will be + names that are not used by any variable in ``vars``, or in + ``used_vars``, or in this feature structure. + + :type vars: set + :param vars: The set of variables that should be renamed. + If not specified, ``find_variables(fstruct)`` is used; i.e., all + variables will be given new names. + :type used_vars: set + :param used_vars: A set of variables whose names should not be + used by the new variables. + :type new_vars: dict(Variable -> Variable) + :param new_vars: A dictionary that is used to hold the mapping + from old variables to new variables. For each variable *v* + in this feature structure: + + - If ``new_vars`` maps *v* to *v'*, then *v* will be + replaced by *v'*. + - If ``new_vars`` does not contain *v*, but ``vars`` + does contain *v*, then a new entry will be added to + ``new_vars``, mapping *v* to the new variable that is used + to replace it. + + To consistently rename the variables in a set of feature + structures, simply apply rename_variables to each one, using + the same dictionary: + + >>> from nltk.featstruct import FeatStruct + >>> fstruct1 = FeatStruct('[subj=[agr=[gender=?y]], obj=[agr=[gender=?y]]]') + >>> fstruct2 = FeatStruct('[subj=[agr=[number=?z,gender=?y]], obj=[agr=[number=?z,gender=?y]]]') + >>> new_vars = {} # Maps old vars to alpha-renamed vars + >>> fstruct1.rename_variables(new_vars=new_vars) + [obj=[agr=[gender=?y2]], subj=[agr=[gender=?y2]]] + >>> fstruct2.rename_variables(new_vars=new_vars) + [obj=[agr=[gender=?y2, number=?z2]], subj=[agr=[gender=?y2, number=?z2]]] + + If new_vars is not specified, then an empty dictionary is used. + """ + if fs_class == "default": + fs_class = _default_fs_class(fstruct) + + # Default values: + if new_vars is None: + new_vars = {} + if vars is None: + vars = find_variables(fstruct, fs_class) + else: + vars = set(vars) + + # Add our own variables to used_vars. + used_vars = find_variables(fstruct, fs_class).union(used_vars) + + # Copy ourselves, and rename variables in the copy. + return _rename_variables( + copy.deepcopy(fstruct), vars, used_vars, new_vars, fs_class, set() + ) + + +def _rename_variables(fstruct, vars, used_vars, new_vars, fs_class, visited): + if id(fstruct) in visited: + return + visited.add(id(fstruct)) + if _is_mapping(fstruct): + items = fstruct.items() + elif _is_sequence(fstruct): + items = enumerate(fstruct) + else: + raise ValueError("Expected mapping or sequence") + for fname, fval in items: + if isinstance(fval, Variable): + # If it's in new_vars, then rebind it. + if fval in new_vars: + fstruct[fname] = new_vars[fval] + # If it's in vars, pick a new name for it. + elif fval in vars: + new_vars[fval] = _rename_variable(fval, used_vars) + fstruct[fname] = new_vars[fval] + used_vars.add(new_vars[fval]) + elif isinstance(fval, fs_class): + _rename_variables(fval, vars, used_vars, new_vars, fs_class, visited) + elif isinstance(fval, SubstituteBindingsI): + # Pick new names for any variables in `vars` + for var in fval.variables(): + if var in vars and var not in new_vars: + new_vars[var] = _rename_variable(var, used_vars) + used_vars.add(new_vars[var]) + # Replace all variables in `new_vars`. + fstruct[fname] = fval.substitute_bindings(new_vars) + return fstruct + + +def _rename_variable(var, used_vars): + name, n = re.sub(r"\d+$", "", var.name), 2 + if not name: + name = "?" + while Variable(f"{name}{n}") in used_vars: + n += 1 + return Variable(f"{name}{n}") + + +def remove_variables(fstruct, fs_class="default"): + """ + :rtype: FeatStruct + :return: The feature structure that is obtained by deleting + all features whose values are ``Variables``. + """ + if fs_class == "default": + fs_class = _default_fs_class(fstruct) + return _remove_variables(copy.deepcopy(fstruct), fs_class, set()) + + +def _remove_variables(fstruct, fs_class, visited): + if id(fstruct) in visited: + return + visited.add(id(fstruct)) + + if _is_mapping(fstruct): + items = list(fstruct.items()) + elif _is_sequence(fstruct): + items = list(enumerate(fstruct)) + else: + raise ValueError("Expected mapping or sequence") + + for fname, fval in items: + if isinstance(fval, Variable): + del fstruct[fname] + elif isinstance(fval, fs_class): + _remove_variables(fval, fs_class, visited) + return fstruct + + +###################################################################### +# Unification +###################################################################### + + +class _UnificationFailure: + def __repr__(self): + return "nltk.featstruct.UnificationFailure" + + +UnificationFailure = _UnificationFailure() +"""A unique value used to indicate unification failure. It can be + returned by ``Feature.unify_base_values()`` or by custom ``fail()`` + functions to indicate that unificaiton should fail.""" + + +# The basic unification algorithm: +# 1. Make copies of self and other (preserving reentrance) +# 2. Destructively unify self and other +# 3. Apply forward pointers, to preserve reentrance. +# 4. Replace bound variables with their values. +def unify( + fstruct1, + fstruct2, + bindings=None, + trace=False, + fail=None, + rename_vars=True, + fs_class="default", +): + """ + Unify ``fstruct1`` with ``fstruct2``, and return the resulting feature + structure. This unified feature structure is the minimal + feature structure that contains all feature value assignments from both + ``fstruct1`` and ``fstruct2``, and that preserves all reentrancies. + + If no such feature structure exists (because ``fstruct1`` and + ``fstruct2`` specify incompatible values for some feature), then + unification fails, and ``unify`` returns None. + + Bound variables are replaced by their values. Aliased + variables are replaced by their representative variable + (if unbound) or the value of their representative variable + (if bound). I.e., if variable *v* is in ``bindings``, + then *v* is replaced by ``bindings[v]``. This will + be repeated until the variable is replaced by an unbound + variable or a non-variable value. + + Unbound variables are bound when they are unified with + values; and aliased when they are unified with variables. + I.e., if variable *v* is not in ``bindings``, and is + unified with a variable or value *x*, then + ``bindings[v]`` is set to *x*. + + If ``bindings`` is unspecified, then all variables are + assumed to be unbound. I.e., ``bindings`` defaults to an + empty dict. + + >>> from nltk.featstruct import FeatStruct + >>> FeatStruct('[a=?x]').unify(FeatStruct('[b=?x]')) + [a=?x, b=?x2] + + :type bindings: dict(Variable -> any) + :param bindings: A set of variable bindings to be used and + updated during unification. + :type trace: bool + :param trace: If true, generate trace output. + :type rename_vars: bool + :param rename_vars: If True, then rename any variables in + ``fstruct2`` that are also used in ``fstruct1``, in order to + avoid collisions on variable names. + """ + # Decide which class(es) will be treated as feature structures, + # for the purposes of unification. + if fs_class == "default": + fs_class = _default_fs_class(fstruct1) + if _default_fs_class(fstruct2) != fs_class: + raise ValueError( + "Mixing FeatStruct objects with Python " + "dicts and lists is not supported." + ) + assert isinstance(fstruct1, fs_class) + assert isinstance(fstruct2, fs_class) + + # If bindings are unspecified, use an empty set of bindings. + user_bindings = bindings is not None + if bindings is None: + bindings = {} + + # Make copies of fstruct1 and fstruct2 (since the unification + # algorithm is destructive). Do it all at once, to preserve + # reentrance links between fstruct1 and fstruct2. Copy bindings + # as well, in case there are any bound vars that contain parts + # of fstruct1 or fstruct2. + (fstruct1copy, fstruct2copy, bindings_copy) = copy.deepcopy( + (fstruct1, fstruct2, bindings) + ) + + # Copy the bindings back to the original bindings dict. + bindings.update(bindings_copy) + + if rename_vars: + vars1 = find_variables(fstruct1copy, fs_class) + vars2 = find_variables(fstruct2copy, fs_class) + _rename_variables(fstruct2copy, vars1, vars2, {}, fs_class, set()) + + # Do the actual unification. If it fails, return None. + forward = {} + if trace: + _trace_unify_start((), fstruct1copy, fstruct2copy) + try: + result = _destructively_unify( + fstruct1copy, fstruct2copy, bindings, forward, trace, fail, fs_class, () + ) + except _UnificationFailureError: + return None + + # _destructively_unify might return UnificationFailure, e.g. if we + # tried to unify a mapping with a sequence. + if result is UnificationFailure: + if fail is None: + return None + else: + return fail(fstruct1copy, fstruct2copy, ()) + + # Replace any feature structure that has a forward pointer + # with the target of its forward pointer. + result = _apply_forwards(result, forward, fs_class, set()) + if user_bindings: + _apply_forwards_to_bindings(forward, bindings) + + # Replace bound vars with values. + _resolve_aliases(bindings) + _substitute_bindings(result, bindings, fs_class, set()) + + # Return the result. + if trace: + _trace_unify_succeed((), result) + if trace: + _trace_bindings((), bindings) + return result + + +class _UnificationFailureError(Exception): + """An exception that is used by ``_destructively_unify`` to abort + unification when a failure is encountered.""" + + +def _destructively_unify( + fstruct1, fstruct2, bindings, forward, trace, fail, fs_class, path +): + """ + Attempt to unify ``fstruct1`` and ``fstruct2`` by modifying them + in-place. If the unification succeeds, then ``fstruct1`` will + contain the unified value, the value of ``fstruct2`` is undefined, + and forward[id(fstruct2)] is set to fstruct1. If the unification + fails, then a _UnificationFailureError is raised, and the + values of ``fstruct1`` and ``fstruct2`` are undefined. + + :param bindings: A dictionary mapping variables to values. + :param forward: A dictionary mapping feature structures ids + to replacement structures. When two feature structures + are merged, a mapping from one to the other will be added + to the forward dictionary; and changes will be made only + to the target of the forward dictionary. + ``_destructively_unify`` will always 'follow' any links + in the forward dictionary for fstruct1 and fstruct2 before + actually unifying them. + :param trace: If true, generate trace output + :param path: The feature path that led us to this unification + step. Used for trace output. + """ + # If fstruct1 is already identical to fstruct2, we're done. + # Note: this, together with the forward pointers, ensures + # that unification will terminate even for cyclic structures. + if fstruct1 is fstruct2: + if trace: + _trace_unify_identity(path, fstruct1) + return fstruct1 + + # Set fstruct2's forward pointer to point to fstruct1; this makes + # fstruct1 the canonical copy for fstruct2. Note that we need to + # do this before we recurse into any child structures, in case + # they're cyclic. + forward[id(fstruct2)] = fstruct1 + + # Unifying two mappings: + if _is_mapping(fstruct1) and _is_mapping(fstruct2): + for fname in fstruct1: + if getattr(fname, "default", None) is not None: + fstruct2.setdefault(fname, fname.default) + for fname in fstruct2: + if getattr(fname, "default", None) is not None: + fstruct1.setdefault(fname, fname.default) + + # Unify any values that are defined in both fstruct1 and + # fstruct2. Copy any values that are defined in fstruct2 but + # not in fstruct1 to fstruct1. Note: sorting fstruct2's + # features isn't actually necessary; but we do it to give + # deterministic behavior, e.g. for tracing. + for fname, fval2 in sorted(fstruct2.items()): + if fname in fstruct1: + fstruct1[fname] = _unify_feature_values( + fname, + fstruct1[fname], + fval2, + bindings, + forward, + trace, + fail, + fs_class, + path + (fname,), + ) + else: + fstruct1[fname] = fval2 + + return fstruct1 # Contains the unified value. + + # Unifying two sequences: + elif _is_sequence(fstruct1) and _is_sequence(fstruct2): + # If the lengths don't match, fail. + if len(fstruct1) != len(fstruct2): + return UnificationFailure + + # Unify corresponding values in fstruct1 and fstruct2. + for findex in range(len(fstruct1)): + fstruct1[findex] = _unify_feature_values( + findex, + fstruct1[findex], + fstruct2[findex], + bindings, + forward, + trace, + fail, + fs_class, + path + (findex,), + ) + + return fstruct1 # Contains the unified value. + + # Unifying sequence & mapping: fail. The failure function + # doesn't get a chance to recover in this case. + elif (_is_sequence(fstruct1) or _is_mapping(fstruct1)) and ( + _is_sequence(fstruct2) or _is_mapping(fstruct2) + ): + return UnificationFailure + + # Unifying anything else: not allowed! + raise TypeError("Expected mappings or sequences") + + +def _unify_feature_values( + fname, fval1, fval2, bindings, forward, trace, fail, fs_class, fpath +): + """ + Attempt to unify ``fval1`` and and ``fval2``, and return the + resulting unified value. The method of unification will depend on + the types of ``fval1`` and ``fval2``: + + 1. If they're both feature structures, then destructively + unify them (see ``_destructively_unify()``. + 2. If they're both unbound variables, then alias one variable + to the other (by setting bindings[v2]=v1). + 3. If one is an unbound variable, and the other is a value, + then bind the unbound variable to the value. + 4. If one is a feature structure, and the other is a base value, + then fail. + 5. If they're both base values, then unify them. By default, + this will succeed if they are equal, and fail otherwise. + """ + if trace: + _trace_unify_start(fpath, fval1, fval2) + + # Look up the "canonical" copy of fval1 and fval2 + while id(fval1) in forward: + fval1 = forward[id(fval1)] + while id(fval2) in forward: + fval2 = forward[id(fval2)] + + # If fval1 or fval2 is a bound variable, then + # replace it by the variable's bound value. This + # includes aliased variables, which are encoded as + # variables bound to other variables. + fvar1 = fvar2 = None + while isinstance(fval1, Variable) and fval1 in bindings: + fvar1 = fval1 + fval1 = bindings[fval1] + while isinstance(fval2, Variable) and fval2 in bindings: + fvar2 = fval2 + fval2 = bindings[fval2] + + # Case 1: Two feature structures (recursive case) + if isinstance(fval1, fs_class) and isinstance(fval2, fs_class): + result = _destructively_unify( + fval1, fval2, bindings, forward, trace, fail, fs_class, fpath + ) + + # Case 2: Two unbound variables (create alias) + elif isinstance(fval1, Variable) and isinstance(fval2, Variable): + if fval1 != fval2: + bindings[fval2] = fval1 + result = fval1 + + # Case 3: An unbound variable and a value (bind) + elif isinstance(fval1, Variable): + bindings[fval1] = fval2 + result = fval1 + elif isinstance(fval2, Variable): + bindings[fval2] = fval1 + result = fval2 + + # Case 4: A feature structure & a base value (fail) + elif isinstance(fval1, fs_class) or isinstance(fval2, fs_class): + result = UnificationFailure + + # Case 5: Two base values + else: + # Case 5a: Feature defines a custom unification method for base values + if isinstance(fname, Feature): + result = fname.unify_base_values(fval1, fval2, bindings) + # Case 5b: Feature value defines custom unification method + elif isinstance(fval1, CustomFeatureValue): + result = fval1.unify(fval2) + # Sanity check: unify value should be symmetric + if isinstance(fval2, CustomFeatureValue) and result != fval2.unify(fval1): + raise AssertionError( + "CustomFeatureValue objects %r and %r disagree " + "about unification value: %r vs. %r" + % (fval1, fval2, result, fval2.unify(fval1)) + ) + elif isinstance(fval2, CustomFeatureValue): + result = fval2.unify(fval1) + # Case 5c: Simple values -- check if they're equal. + else: + if fval1 == fval2: + result = fval1 + else: + result = UnificationFailure + + # If either value was a bound variable, then update the + # bindings. (This is really only necessary if fname is a + # Feature or if either value is a CustomFeatureValue.) + if result is not UnificationFailure: + if fvar1 is not None: + bindings[fvar1] = result + result = fvar1 + if fvar2 is not None and fvar2 != fvar1: + bindings[fvar2] = result + result = fvar2 + + # If we unification failed, call the failure function; it + # might decide to continue anyway. + if result is UnificationFailure: + if fail is not None: + result = fail(fval1, fval2, fpath) + if trace: + _trace_unify_fail(fpath[:-1], result) + if result is UnificationFailure: + raise _UnificationFailureError + + # Normalize the result. + if isinstance(result, fs_class): + result = _apply_forwards(result, forward, fs_class, set()) + + if trace: + _trace_unify_succeed(fpath, result) + if trace and isinstance(result, fs_class): + _trace_bindings(fpath, bindings) + + return result + + +def _apply_forwards_to_bindings(forward, bindings): + """ + Replace any feature structure that has a forward pointer with + the target of its forward pointer (to preserve reentrancy). + """ + for var, value in bindings.items(): + while id(value) in forward: + value = forward[id(value)] + bindings[var] = value + + +def _apply_forwards(fstruct, forward, fs_class, visited): + """ + Replace any feature structure that has a forward pointer with + the target of its forward pointer (to preserve reentrancy). + """ + # Follow our own forwards pointers (if any) + while id(fstruct) in forward: + fstruct = forward[id(fstruct)] + + # Visit each node only once: + if id(fstruct) in visited: + return + visited.add(id(fstruct)) + + if _is_mapping(fstruct): + items = fstruct.items() + elif _is_sequence(fstruct): + items = enumerate(fstruct) + else: + raise ValueError("Expected mapping or sequence") + for fname, fval in items: + if isinstance(fval, fs_class): + # Replace w/ forwarded value. + while id(fval) in forward: + fval = forward[id(fval)] + fstruct[fname] = fval + # Recurse to child. + _apply_forwards(fval, forward, fs_class, visited) + + return fstruct + + +def _resolve_aliases(bindings): + """ + Replace any bound aliased vars with their binding; and replace + any unbound aliased vars with their representative var. + """ + for var, value in bindings.items(): + while isinstance(value, Variable) and value in bindings: + value = bindings[var] = bindings[value] + + +def _trace_unify_start(path, fval1, fval2): + if path == (): + print("\nUnification trace:") + else: + fullname = ".".join("%s" % n for n in path) + print(" " + "| " * (len(path) - 1) + "|") + print(" " + "| " * (len(path) - 1) + "| Unify feature: %s" % fullname) + print(" " + "| " * len(path) + " / " + _trace_valrepr(fval1)) + print(" " + "| " * len(path) + "|\\ " + _trace_valrepr(fval2)) + + +def _trace_unify_identity(path, fval1): + print(" " + "| " * len(path) + "|") + print(" " + "| " * len(path) + "| (identical objects)") + print(" " + "| " * len(path) + "|") + print(" " + "| " * len(path) + "+-->" + repr(fval1)) + + +def _trace_unify_fail(path, result): + if result is UnificationFailure: + resume = "" + else: + resume = " (nonfatal)" + print(" " + "| " * len(path) + "| |") + print(" " + "X " * len(path) + "X X <-- FAIL" + resume) + + +def _trace_unify_succeed(path, fval1): + # Print the result. + print(" " + "| " * len(path) + "|") + print(" " + "| " * len(path) + "+-->" + repr(fval1)) + + +def _trace_bindings(path, bindings): + # Print the bindings (if any). + if len(bindings) > 0: + binditems = sorted(bindings.items(), key=lambda v: v[0].name) + bindstr = "{%s}" % ", ".join( + f"{var}: {_trace_valrepr(val)}" for (var, val) in binditems + ) + print(" " + "| " * len(path) + " Bindings: " + bindstr) + + +def _trace_valrepr(val): + if isinstance(val, Variable): + return "%s" % val + else: + return "%s" % repr(val) + + +def subsumes(fstruct1, fstruct2): + """ + Return True if ``fstruct1`` subsumes ``fstruct2``. I.e., return + true if unifying ``fstruct1`` with ``fstruct2`` would result in a + feature structure equal to ``fstruct2.`` + + :rtype: bool + """ + return fstruct2 == unify(fstruct1, fstruct2) + + +def conflicts(fstruct1, fstruct2, trace=0): + """ + Return a list of the feature paths of all features which are + assigned incompatible values by ``fstruct1`` and ``fstruct2``. + + :rtype: list(tuple) + """ + conflict_list = [] + + def add_conflict(fval1, fval2, path): + conflict_list.append(path) + return fval1 + + unify(fstruct1, fstruct2, fail=add_conflict, trace=trace) + return conflict_list + + +###################################################################### +# Helper Functions +###################################################################### + + +def _is_mapping(v): + return hasattr(v, "__contains__") and hasattr(v, "keys") + + +def _is_sequence(v): + return hasattr(v, "__iter__") and hasattr(v, "__len__") and not isinstance(v, str) + + +def _default_fs_class(obj): + if isinstance(obj, FeatStruct): + return FeatStruct + if isinstance(obj, (dict, list)): + return (dict, list) + else: + raise ValueError( + "To unify objects of type %s, you must specify " + "fs_class explicitly." % obj.__class__.__name__ + ) + + +###################################################################### +# FeatureValueSet & FeatureValueTuple +###################################################################### + + +class SubstituteBindingsSequence(SubstituteBindingsI): + """ + A mixin class for sequence classes that distributes variables() and + substitute_bindings() over the object's elements. + """ + + def variables(self): + return [elt for elt in self if isinstance(elt, Variable)] + sum( + ( + list(elt.variables()) + for elt in self + if isinstance(elt, SubstituteBindingsI) + ), + [], + ) + + def substitute_bindings(self, bindings): + return self.__class__([self.subst(v, bindings) for v in self]) + + def subst(self, v, bindings): + if isinstance(v, SubstituteBindingsI): + return v.substitute_bindings(bindings) + else: + return bindings.get(v, v) + + +class FeatureValueTuple(SubstituteBindingsSequence, tuple): + """ + A base feature value that is a tuple of other base feature values. + FeatureValueTuple implements ``SubstituteBindingsI``, so it any + variable substitutions will be propagated to the elements + contained by the set. A ``FeatureValueTuple`` is immutable. + """ + + def __repr__(self): # [xx] really use %s here? + if len(self) == 0: + return "()" + return "(%s)" % ", ".join(f"{b}" for b in self) + + +class FeatureValueSet(SubstituteBindingsSequence, frozenset): + """ + A base feature value that is a set of other base feature values. + FeatureValueSet implements ``SubstituteBindingsI``, so it any + variable substitutions will be propagated to the elements + contained by the set. A ``FeatureValueSet`` is immutable. + """ + + def __repr__(self): # [xx] really use %s here? + if len(self) == 0: + return "{/}" # distinguish from dict. + # n.b., we sort the string reprs of our elements, to ensure + # that our own repr is deterministic. + return "{%s}" % ", ".join(sorted(f"{b}" for b in self)) + + __str__ = __repr__ + + +class FeatureValueUnion(SubstituteBindingsSequence, frozenset): + """ + A base feature value that represents the union of two or more + ``FeatureValueSet`` or ``Variable``. + """ + + def __new__(cls, values): + # If values contains FeatureValueUnions, then collapse them. + values = _flatten(values, FeatureValueUnion) + + # If the resulting list contains no variables, then + # use a simple FeatureValueSet instead. + if sum(isinstance(v, Variable) for v in values) == 0: + values = _flatten(values, FeatureValueSet) + return FeatureValueSet(values) + + # If we contain a single variable, return that variable. + if len(values) == 1: + return list(values)[0] + + # Otherwise, build the FeatureValueUnion. + return frozenset.__new__(cls, values) + + def __repr__(self): + # n.b., we sort the string reprs of our elements, to ensure + # that our own repr is deterministic. also, note that len(self) + # is guaranteed to be 2 or more. + return "{%s}" % "+".join(sorted(f"{b}" for b in self)) + + +class FeatureValueConcat(SubstituteBindingsSequence, tuple): + """ + A base feature value that represents the concatenation of two or + more ``FeatureValueTuple`` or ``Variable``. + """ + + def __new__(cls, values): + # If values contains FeatureValueConcats, then collapse them. + values = _flatten(values, FeatureValueConcat) + + # If the resulting list contains no variables, then + # use a simple FeatureValueTuple instead. + if sum(isinstance(v, Variable) for v in values) == 0: + values = _flatten(values, FeatureValueTuple) + return FeatureValueTuple(values) + + # If we contain a single variable, return that variable. + if len(values) == 1: + return list(values)[0] + + # Otherwise, build the FeatureValueConcat. + return tuple.__new__(cls, values) + + def __repr__(self): + # n.b.: len(self) is guaranteed to be 2 or more. + return "(%s)" % "+".join(f"{b}" for b in self) + + +def _flatten(lst, cls): + """ + Helper function -- return a copy of list, with all elements of + type ``cls`` spliced in rather than appended in. + """ + result = [] + for elt in lst: + if isinstance(elt, cls): + result.extend(elt) + else: + result.append(elt) + return result + + +###################################################################### +# Specialized Features +###################################################################### + + +@total_ordering +class Feature: + """ + A feature identifier that's specialized to put additional + constraints, default values, etc. + """ + + def __init__(self, name, default=None, display=None): + assert display in (None, "prefix", "slash") + + self._name = name # [xx] rename to .identifier? + self._default = default # [xx] not implemented yet. + self._display = display + + if self._display == "prefix": + self._sortkey = (-1, self._name) + elif self._display == "slash": + self._sortkey = (1, self._name) + else: + self._sortkey = (0, self._name) + + @property + def name(self): + """The name of this feature.""" + return self._name + + @property + def default(self): + """Default value for this feature.""" + return self._default + + @property + def display(self): + """Custom display location: can be prefix, or slash.""" + return self._display + + def __repr__(self): + return "*%s*" % self.name + + def __lt__(self, other): + if isinstance(other, str): + return True + if not isinstance(other, Feature): + raise_unorderable_types("<", self, other) + return self._sortkey < other._sortkey + + def __eq__(self, other): + return type(self) == type(other) and self._name == other._name + + def __ne__(self, other): + return not self == other + + def __hash__(self): + return hash(self._name) + + # //////////////////////////////////////////////////////////// + # These can be overridden by subclasses: + # //////////////////////////////////////////////////////////// + + def read_value(self, s, position, reentrances, parser): + return parser.read_value(s, position, reentrances) + + def unify_base_values(self, fval1, fval2, bindings): + """ + If possible, return a single value.. If not, return + the value ``UnificationFailure``. + """ + if fval1 == fval2: + return fval1 + else: + return UnificationFailure + + +class SlashFeature(Feature): + def read_value(self, s, position, reentrances, parser): + return parser.read_partial(s, position, reentrances) + + +class RangeFeature(Feature): + RANGE_RE = re.compile(r"(-?\d+):(-?\d+)") + + def read_value(self, s, position, reentrances, parser): + m = self.RANGE_RE.match(s, position) + if not m: + raise ValueError("range", position) + return (int(m.group(1)), int(m.group(2))), m.end() + + def unify_base_values(self, fval1, fval2, bindings): + if fval1 is None: + return fval2 + if fval2 is None: + return fval1 + rng = max(fval1[0], fval2[0]), min(fval1[1], fval2[1]) + if rng[1] < rng[0]: + return UnificationFailure + return rng + + +SLASH = SlashFeature("slash", default=False, display="slash") +TYPE = Feature("type", display="prefix") + + +###################################################################### +# Specialized Feature Values +###################################################################### + + +@total_ordering +class CustomFeatureValue: + """ + An abstract base class for base values that define a custom + unification method. The custom unification method of + ``CustomFeatureValue`` will be used during unification if: + + - The ``CustomFeatureValue`` is unified with another base value. + - The ``CustomFeatureValue`` is not the value of a customized + ``Feature`` (which defines its own unification method). + + If two ``CustomFeatureValue`` objects are unified with one another + during feature structure unification, then the unified base values + they return *must* be equal; otherwise, an ``AssertionError`` will + be raised. + + Subclasses must define ``unify()``, ``__eq__()`` and ``__lt__()``. + Subclasses may also wish to define ``__hash__()``. + """ + + def unify(self, other): + """ + If this base value unifies with ``other``, then return the + unified value. Otherwise, return ``UnificationFailure``. + """ + raise NotImplementedError("abstract base class") + + def __eq__(self, other): + return NotImplemented + + def __ne__(self, other): + return not self == other + + def __lt__(self, other): + return NotImplemented + + def __hash__(self): + raise TypeError("%s objects or unhashable" % self.__class__.__name__) + + +###################################################################### +# Feature Structure Reader +###################################################################### + + +class FeatStructReader: + def __init__( + self, + features=(SLASH, TYPE), + fdict_class=FeatStruct, + flist_class=FeatList, + logic_parser=None, + ): + self._features = {f.name: f for f in features} + self._fdict_class = fdict_class + self._flist_class = flist_class + self._prefix_feature = None + self._slash_feature = None + for feature in features: + if feature.display == "slash": + if self._slash_feature: + raise ValueError("Multiple features w/ display=slash") + self._slash_feature = feature + if feature.display == "prefix": + if self._prefix_feature: + raise ValueError("Multiple features w/ display=prefix") + self._prefix_feature = feature + self._features_with_defaults = [ + feature for feature in features if feature.default is not None + ] + if logic_parser is None: + logic_parser = LogicParser() + self._logic_parser = logic_parser + + def fromstring(self, s, fstruct=None): + """ + Convert a string representation of a feature structure (as + displayed by repr) into a ``FeatStruct``. This process + imposes the following restrictions on the string + representation: + + - Feature names cannot contain any of the following: + whitespace, parentheses, quote marks, equals signs, + dashes, commas, and square brackets. Feature names may + not begin with plus signs or minus signs. + - Only the following basic feature value are supported: + strings, integers, variables, None, and unquoted + alphanumeric strings. + - For reentrant values, the first mention must specify + a reentrance identifier and a value; and any subsequent + mentions must use arrows (``'->'``) to reference the + reentrance identifier. + """ + s = s.strip() + value, position = self.read_partial(s, 0, {}, fstruct) + if position != len(s): + self._error(s, "end of string", position) + return value + + _START_FSTRUCT_RE = re.compile(r"\s*(?:\((\d+)\)\s*)?(\??[\w-]+)?(\[)") + _END_FSTRUCT_RE = re.compile(r"\s*]\s*") + _SLASH_RE = re.compile(r"/") + _FEATURE_NAME_RE = re.compile(r'\s*([+-]?)([^\s\(\)<>"\'\-=\[\],]+)\s*') + _REENTRANCE_RE = re.compile(r"\s*->\s*") + _TARGET_RE = re.compile(r"\s*\((\d+)\)\s*") + _ASSIGN_RE = re.compile(r"\s*=\s*") + _COMMA_RE = re.compile(r"\s*,\s*") + _BARE_PREFIX_RE = re.compile(r"\s*(?:\((\d+)\)\s*)?(\??[\w-]+\s*)()") + # This one is used to distinguish fdicts from flists: + _START_FDICT_RE = re.compile( + r"(%s)|(%s\s*(%s\s*(=|->)|[+-]%s|\]))" + % ( + _BARE_PREFIX_RE.pattern, + _START_FSTRUCT_RE.pattern, + _FEATURE_NAME_RE.pattern, + _FEATURE_NAME_RE.pattern, + ) + ) + + def read_partial(self, s, position=0, reentrances=None, fstruct=None): + """ + Helper function that reads in a feature structure. + + :param s: The string to read. + :param position: The position in the string to start parsing. + :param reentrances: A dictionary from reentrance ids to values. + Defaults to an empty dictionary. + :return: A tuple (val, pos) of the feature structure created by + parsing and the position where the parsed feature structure ends. + :rtype: bool + """ + if reentrances is None: + reentrances = {} + try: + return self._read_partial(s, position, reentrances, fstruct) + except ValueError as e: + if len(e.args) != 2: + raise + self._error(s, *e.args) + + def _read_partial(self, s, position, reentrances, fstruct=None): + # Create the new feature structure + if fstruct is None: + if self._START_FDICT_RE.match(s, position): + fstruct = self._fdict_class() + else: + fstruct = self._flist_class() + + # Read up to the open bracket. + match = self._START_FSTRUCT_RE.match(s, position) + if not match: + match = self._BARE_PREFIX_RE.match(s, position) + if not match: + raise ValueError("open bracket or identifier", position) + position = match.end() + + # If there as an identifier, record it. + if match.group(1): + identifier = match.group(1) + if identifier in reentrances: + raise ValueError("new identifier", match.start(1)) + reentrances[identifier] = fstruct + + if isinstance(fstruct, FeatDict): + fstruct.clear() + return self._read_partial_featdict(s, position, match, reentrances, fstruct) + else: + del fstruct[:] + return self._read_partial_featlist(s, position, match, reentrances, fstruct) + + def _read_partial_featlist(self, s, position, match, reentrances, fstruct): + # Prefix features are not allowed: + if match.group(2): + raise ValueError("open bracket") + # Bare prefixes are not allowed: + if not match.group(3): + raise ValueError("open bracket") + + # Build a list of the features defined by the structure. + while position < len(s): + # Check for the close bracket. + match = self._END_FSTRUCT_RE.match(s, position) + if match is not None: + return fstruct, match.end() + + # Reentances have the form "-> (target)" + match = self._REENTRANCE_RE.match(s, position) + if match: + position = match.end() + match = self._TARGET_RE.match(s, position) + if not match: + raise ValueError("identifier", position) + target = match.group(1) + if target not in reentrances: + raise ValueError("bound identifier", position) + position = match.end() + fstruct.append(reentrances[target]) + + # Anything else is a value. + else: + value, position = self._read_value(0, s, position, reentrances) + fstruct.append(value) + + # If there's a close bracket, handle it at the top of the loop. + if self._END_FSTRUCT_RE.match(s, position): + continue + + # Otherwise, there should be a comma + match = self._COMMA_RE.match(s, position) + if match is None: + raise ValueError("comma", position) + position = match.end() + + # We never saw a close bracket. + raise ValueError("close bracket", position) + + def _read_partial_featdict(self, s, position, match, reentrances, fstruct): + # If there was a prefix feature, record it. + if match.group(2): + if self._prefix_feature is None: + raise ValueError("open bracket or identifier", match.start(2)) + prefixval = match.group(2).strip() + if prefixval.startswith("?"): + prefixval = Variable(prefixval) + fstruct[self._prefix_feature] = prefixval + + # If group 3 is empty, then we just have a bare prefix, so + # we're done. + if not match.group(3): + return self._finalize(s, match.end(), reentrances, fstruct) + + # Build a list of the features defined by the structure. + # Each feature has one of the three following forms: + # name = value + # name -> (target) + # +name + # -name + while position < len(s): + # Use these variables to hold info about each feature: + name = value = None + + # Check for the close bracket. + match = self._END_FSTRUCT_RE.match(s, position) + if match is not None: + return self._finalize(s, match.end(), reentrances, fstruct) + + # Get the feature name's name + match = self._FEATURE_NAME_RE.match(s, position) + if match is None: + raise ValueError("feature name", position) + name = match.group(2) + position = match.end() + + # Check if it's a special feature. + if name[0] == "*" and name[-1] == "*": + name = self._features.get(name[1:-1]) + if name is None: + raise ValueError("known special feature", match.start(2)) + + # Check if this feature has a value already. + if name in fstruct: + raise ValueError("new name", match.start(2)) + + # Boolean value ("+name" or "-name") + if match.group(1) == "+": + value = True + if match.group(1) == "-": + value = False + + # Reentrance link ("-> (target)") + if value is None: + match = self._REENTRANCE_RE.match(s, position) + if match is not None: + position = match.end() + match = self._TARGET_RE.match(s, position) + if not match: + raise ValueError("identifier", position) + target = match.group(1) + if target not in reentrances: + raise ValueError("bound identifier", position) + position = match.end() + value = reentrances[target] + + # Assignment ("= value"). + if value is None: + match = self._ASSIGN_RE.match(s, position) + if match: + position = match.end() + value, position = self._read_value(name, s, position, reentrances) + # None of the above: error. + else: + raise ValueError("equals sign", position) + + # Store the value. + fstruct[name] = value + + # If there's a close bracket, handle it at the top of the loop. + if self._END_FSTRUCT_RE.match(s, position): + continue + + # Otherwise, there should be a comma + match = self._COMMA_RE.match(s, position) + if match is None: + raise ValueError("comma", position) + position = match.end() + + # We never saw a close bracket. + raise ValueError("close bracket", position) + + def _finalize(self, s, pos, reentrances, fstruct): + """ + Called when we see the close brace -- checks for a slash feature, + and adds in default values. + """ + # Add the slash feature (if any) + match = self._SLASH_RE.match(s, pos) + if match: + name = self._slash_feature + v, pos = self._read_value(name, s, match.end(), reentrances) + fstruct[name] = v + ## Add any default features. -- handle in unficiation instead? + # for feature in self._features_with_defaults: + # fstruct.setdefault(feature, feature.default) + # Return the value. + return fstruct, pos + + def _read_value(self, name, s, position, reentrances): + if isinstance(name, Feature): + return name.read_value(s, position, reentrances, self) + else: + return self.read_value(s, position, reentrances) + + def read_value(self, s, position, reentrances): + for handler, regexp in self.VALUE_HANDLERS: + match = regexp.match(s, position) + if match: + handler_func = getattr(self, handler) + return handler_func(s, position, reentrances, match) + raise ValueError("value", position) + + def _error(self, s, expected, position): + lines = s.split("\n") + while position > len(lines[0]): + position -= len(lines.pop(0)) + 1 # +1 for the newline. + estr = ( + "Error parsing feature structure\n " + + lines[0] + + "\n " + + " " * position + + "^ " + + "Expected %s" % expected + ) + raise ValueError(estr) + + # //////////////////////////////////////////////////////////// + # { Value Readers + # //////////////////////////////////////////////////////////// + + #: A table indicating how feature values should be processed. Each + #: entry in the table is a pair (handler, regexp). The first entry + #: with a matching regexp will have its handler called. Handlers + #: should have the following signature:: + #: + #: def handler(s, position, reentrances, match): ... + #: + #: and should return a tuple (value, position), where position is + #: the string position where the value ended. (n.b.: order is + #: important here!) + VALUE_HANDLERS = [ + ("read_fstruct_value", _START_FSTRUCT_RE), + ("read_var_value", re.compile(r"\?[a-zA-Z_][a-zA-Z0-9_]*")), + ("read_str_value", re.compile("[uU]?[rR]?(['\"])")), + ("read_int_value", re.compile(r"-?\d+")), + ("read_sym_value", re.compile(r"[a-zA-Z_][a-zA-Z0-9_]*")), + ( + "read_app_value", + re.compile(r"<(app)\((\?[a-z][a-z]*)\s*," r"\s*(\?[a-z][a-z]*)\)>"), + ), + # ('read_logic_value', re.compile(r'<([^>]*)>')), + # lazily match any character after '<' until we hit a '>' not preceded by '-' + ("read_logic_value", re.compile(r"<(.*?)(?")), + ("read_set_value", re.compile(r"{")), + ("read_tuple_value", re.compile(r"\(")), + ] + + def read_fstruct_value(self, s, position, reentrances, match): + return self.read_partial(s, position, reentrances) + + def read_str_value(self, s, position, reentrances, match): + return read_str(s, position) + + def read_int_value(self, s, position, reentrances, match): + return int(match.group()), match.end() + + # Note: the '?' is included in the variable name. + def read_var_value(self, s, position, reentrances, match): + return Variable(match.group()), match.end() + + _SYM_CONSTS = {"None": None, "True": True, "False": False} + + def read_sym_value(self, s, position, reentrances, match): + val, end = match.group(), match.end() + return self._SYM_CONSTS.get(val, val), end + + def read_app_value(self, s, position, reentrances, match): + """Mainly included for backwards compat.""" + return self._logic_parser.parse("%s(%s)" % match.group(2, 3)), match.end() + + def read_logic_value(self, s, position, reentrances, match): + try: + try: + expr = self._logic_parser.parse(match.group(1)) + except LogicalExpressionException as e: + raise ValueError from e + return expr, match.end() + except ValueError as e: + raise ValueError("logic expression", match.start(1)) from e + + def read_tuple_value(self, s, position, reentrances, match): + return self._read_seq_value( + s, position, reentrances, match, ")", FeatureValueTuple, FeatureValueConcat + ) + + def read_set_value(self, s, position, reentrances, match): + return self._read_seq_value( + s, position, reentrances, match, "}", FeatureValueSet, FeatureValueUnion + ) + + def _read_seq_value( + self, s, position, reentrances, match, close_paren, seq_class, plus_class + ): + """ + Helper function used by read_tuple_value and read_set_value. + """ + cp = re.escape(close_paren) + position = match.end() + # Special syntax of empty tuples: + m = re.compile(r"\s*/?\s*%s" % cp).match(s, position) + if m: + return seq_class(), m.end() + # Read values: + values = [] + seen_plus = False + while True: + # Close paren: return value. + m = re.compile(r"\s*%s" % cp).match(s, position) + if m: + if seen_plus: + return plus_class(values), m.end() + else: + return seq_class(values), m.end() + + # Read the next value. + val, position = self.read_value(s, position, reentrances) + values.append(val) + + # Comma or looking at close paren + m = re.compile(r"\s*(,|\+|(?=%s))\s*" % cp).match(s, position) + if not m: + raise ValueError("',' or '+' or '%s'" % cp, position) + if m.group(1) == "+": + seen_plus = True + position = m.end() + + +###################################################################### +# { Demo +###################################################################### + + +def display_unification(fs1, fs2, indent=" "): + # Print the two input feature structures, side by side. + fs1_lines = ("%s" % fs1).split("\n") + fs2_lines = ("%s" % fs2).split("\n") + if len(fs1_lines) > len(fs2_lines): + blankline = "[" + " " * (len(fs2_lines[0]) - 2) + "]" + fs2_lines += [blankline] * len(fs1_lines) + else: + blankline = "[" + " " * (len(fs1_lines[0]) - 2) + "]" + fs1_lines += [blankline] * len(fs2_lines) + for fs1_line, fs2_line in zip(fs1_lines, fs2_lines): + print(indent + fs1_line + " " + fs2_line) + print(indent + "-" * len(fs1_lines[0]) + " " + "-" * len(fs2_lines[0])) + + linelen = len(fs1_lines[0]) * 2 + 3 + print(indent + "| |".center(linelen)) + print(indent + "+-----UNIFY-----+".center(linelen)) + print(indent + "|".center(linelen)) + print(indent + "V".center(linelen)) + + bindings = {} + + result = fs1.unify(fs2, bindings) + if result is None: + print(indent + "(FAILED)".center(linelen)) + else: + print( + "\n".join(indent + l.center(linelen) for l in ("%s" % result).split("\n")) + ) + if bindings and len(bindings.bound_variables()) > 0: + print(repr(bindings).center(linelen)) + return result + + +def interactive_demo(trace=False): + import random + import sys + + HELP = """ + 1-%d: Select the corresponding feature structure + q: Quit + t: Turn tracing on or off + l: List all feature structures + ?: Help + """ + + print( + """ + This demo will repeatedly present you with a list of feature + structures, and ask you to choose two for unification. Whenever a + new feature structure is generated, it is added to the list of + choices that you can pick from. However, since this can be a + large number of feature structures, the demo will only print out a + random subset for you to choose between at a given time. If you + want to see the complete lists, type "l". For a list of valid + commands, type "?". + """ + ) + print('Press "Enter" to continue...') + sys.stdin.readline() + + fstruct_strings = [ + "[agr=[number=sing, gender=masc]]", + "[agr=[gender=masc, person=3]]", + "[agr=[gender=fem, person=3]]", + "[subj=[agr=(1)[]], agr->(1)]", + "[obj=?x]", + "[subj=?x]", + "[/=None]", + "[/=NP]", + "[cat=NP]", + "[cat=VP]", + "[cat=PP]", + "[subj=[agr=[gender=?y]], obj=[agr=[gender=?y]]]", + "[gender=masc, agr=?C]", + "[gender=?S, agr=[gender=?S,person=3]]", + ] + + all_fstructs = [ + (i, FeatStruct(fstruct_strings[i])) for i in range(len(fstruct_strings)) + ] + + def list_fstructs(fstructs): + for i, fstruct in fstructs: + print() + lines = ("%s" % fstruct).split("\n") + print("%3d: %s" % (i + 1, lines[0])) + for line in lines[1:]: + print(" " + line) + print() + + while True: + # Pick 5 feature structures at random from the master list. + MAX_CHOICES = 5 + if len(all_fstructs) > MAX_CHOICES: + fstructs = sorted(random.sample(all_fstructs, MAX_CHOICES)) + else: + fstructs = all_fstructs + + print("_" * 75) + + print("Choose two feature structures to unify:") + list_fstructs(fstructs) + + selected = [None, None] + for nth, i in (("First", 0), ("Second", 1)): + while selected[i] is None: + print( + ( + "%s feature structure (1-%d,q,t,l,?): " + % (nth, len(all_fstructs)) + ), + end=" ", + ) + try: + input = sys.stdin.readline().strip() + if input in ("q", "Q", "x", "X"): + return + if input in ("t", "T"): + trace = not trace + print(" Trace = %s" % trace) + continue + if input in ("h", "H", "?"): + print(HELP % len(fstructs)) + continue + if input in ("l", "L"): + list_fstructs(all_fstructs) + continue + num = int(input) - 1 + selected[i] = all_fstructs[num][1] + print() + except Exception: + print("Bad sentence number") + continue + + if trace: + result = selected[0].unify(selected[1], trace=1) + else: + result = display_unification(selected[0], selected[1]) + if result is not None: + for i, fstruct in all_fstructs: + if repr(result) == repr(fstruct): + break + else: + all_fstructs.append((len(all_fstructs), result)) + + print('\nType "Enter" to continue unifying; or "q" to quit.') + input = sys.stdin.readline().strip() + if input in ("q", "Q", "x", "X"): + return + + +def demo(trace=False): + """ + Just for testing + """ + # import random + + # processor breaks with values like '3rd' + fstruct_strings = [ + "[agr=[number=sing, gender=masc]]", + "[agr=[gender=masc, person=3]]", + "[agr=[gender=fem, person=3]]", + "[subj=[agr=(1)[]], agr->(1)]", + "[obj=?x]", + "[subj=?x]", + "[/=None]", + "[/=NP]", + "[cat=NP]", + "[cat=VP]", + "[cat=PP]", + "[subj=[agr=[gender=?y]], obj=[agr=[gender=?y]]]", + "[gender=masc, agr=?C]", + "[gender=?S, agr=[gender=?S,person=3]]", + ] + all_fstructs = [FeatStruct(fss) for fss in fstruct_strings] + # MAX_CHOICES = 5 + # if len(all_fstructs) > MAX_CHOICES: + # fstructs = random.sample(all_fstructs, MAX_CHOICES) + # fstructs.sort() + # else: + # fstructs = all_fstructs + + for fs1 in all_fstructs: + for fs2 in all_fstructs: + print( + "\n*******************\nfs1 is:\n%s\n\nfs2 is:\n%s\n\nresult is:\n%s" + % (fs1, fs2, unify(fs1, fs2)) + ) + + +if __name__ == "__main__": + demo() + +__all__ = [ + "FeatStruct", + "FeatDict", + "FeatList", + "unify", + "subsumes", + "conflicts", + "Feature", + "SlashFeature", + "RangeFeature", + "SLASH", + "TYPE", + "FeatStructReader", +] diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/grammar.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/grammar.py new file mode 100644 index 0000000000000000000000000000000000000000..d9db61762cc4f1332a8261f4baf170c2b439c29d --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/grammar.py @@ -0,0 +1,1744 @@ +# Natural Language Toolkit: Context Free Grammars +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Steven Bird +# Edward Loper +# Jason Narad +# Peter Ljunglöf +# Tom Aarsen <> +# URL: +# For license information, see LICENSE.TXT +# + +""" +Basic data classes for representing context free grammars. A +"grammar" specifies which trees can represent the structure of a +given text. Each of these trees is called a "parse tree" for the +text (or simply a "parse"). In a "context free" grammar, the set of +parse trees for any piece of a text can depend only on that piece, and +not on the rest of the text (i.e., the piece's context). Context free +grammars are often used to find possible syntactic structures for +sentences. In this context, the leaves of a parse tree are word +tokens; and the node values are phrasal categories, such as ``NP`` +and ``VP``. + +The ``CFG`` class is used to encode context free grammars. Each +``CFG`` consists of a start symbol and a set of productions. +The "start symbol" specifies the root node value for parse trees. For example, +the start symbol for syntactic parsing is usually ``S``. Start +symbols are encoded using the ``Nonterminal`` class, which is discussed +below. + +A Grammar's "productions" specify what parent-child relationships a parse +tree can contain. Each production specifies that a particular +node can be the parent of a particular set of children. For example, +the production `` -> `` specifies that an ``S`` node can +be the parent of an ``NP`` node and a ``VP`` node. + +Grammar productions are implemented by the ``Production`` class. +Each ``Production`` consists of a left hand side and a right hand +side. The "left hand side" is a ``Nonterminal`` that specifies the +node type for a potential parent; and the "right hand side" is a list +that specifies allowable children for that parent. This lists +consists of ``Nonterminals`` and text types: each ``Nonterminal`` +indicates that the corresponding child may be a ``TreeToken`` with the +specified node type; and each text type indicates that the +corresponding child may be a ``Token`` with the with that type. + +The ``Nonterminal`` class is used to distinguish node values from leaf +values. This prevents the grammar from accidentally using a leaf +value (such as the English word "A") as the node of a subtree. Within +a ``CFG``, all node values are wrapped in the ``Nonterminal`` +class. Note, however, that the trees that are specified by the grammar do +*not* include these ``Nonterminal`` wrappers. + +Grammars can also be given a more procedural interpretation. According to +this interpretation, a Grammar specifies any tree structure *tree* that +can be produced by the following procedure: + +| Set tree to the start symbol +| Repeat until tree contains no more nonterminal leaves: +| Choose a production prod with whose left hand side +| lhs is a nonterminal leaf of tree. +| Replace the nonterminal leaf with a subtree, whose node +| value is the value wrapped by the nonterminal lhs, and +| whose children are the right hand side of prod. + +The operation of replacing the left hand side (*lhs*) of a production +with the right hand side (*rhs*) in a tree (*tree*) is known as +"expanding" *lhs* to *rhs* in *tree*. +""" +import re +from collections import deque +from functools import total_ordering + +from nltk.featstruct import SLASH, TYPE, FeatDict, FeatStruct, FeatStructReader +from nltk.internals import raise_unorderable_types +from nltk.probability import ImmutableProbabilisticMixIn +from nltk.util import invert_graph, transitive_closure + +################################################################# +# Nonterminal +################################################################# + + +@total_ordering +class Nonterminal: + """ + A non-terminal symbol for a context free grammar. ``Nonterminal`` + is a wrapper class for node values; it is used by ``Production`` + objects to distinguish node values from leaf values. + The node value that is wrapped by a ``Nonterminal`` is known as its + "symbol". Symbols are typically strings representing phrasal + categories (such as ``"NP"`` or ``"VP"``). However, more complex + symbol types are sometimes used (e.g., for lexicalized grammars). + Since symbols are node values, they must be immutable and + hashable. Two ``Nonterminals`` are considered equal if their + symbols are equal. + + :see: ``CFG``, ``Production`` + :type _symbol: any + :ivar _symbol: The node value corresponding to this + ``Nonterminal``. This value must be immutable and hashable. + """ + + def __init__(self, symbol): + """ + Construct a new non-terminal from the given symbol. + + :type symbol: any + :param symbol: The node value corresponding to this + ``Nonterminal``. This value must be immutable and + hashable. + """ + self._symbol = symbol + + def symbol(self): + """ + Return the node value corresponding to this ``Nonterminal``. + + :rtype: (any) + """ + return self._symbol + + def __eq__(self, other): + """ + Return True if this non-terminal is equal to ``other``. In + particular, return True if ``other`` is a ``Nonterminal`` + and this non-terminal's symbol is equal to ``other`` 's symbol. + + :rtype: bool + """ + return type(self) == type(other) and self._symbol == other._symbol + + def __ne__(self, other): + return not self == other + + def __lt__(self, other): + if not isinstance(other, Nonterminal): + raise_unorderable_types("<", self, other) + return self._symbol < other._symbol + + def __hash__(self): + return hash(self._symbol) + + def __repr__(self): + """ + Return a string representation for this ``Nonterminal``. + + :rtype: str + """ + if isinstance(self._symbol, str): + return "%s" % self._symbol + else: + return "%s" % repr(self._symbol) + + def __str__(self): + """ + Return a string representation for this ``Nonterminal``. + + :rtype: str + """ + if isinstance(self._symbol, str): + return "%s" % self._symbol + else: + return "%s" % repr(self._symbol) + + def __div__(self, rhs): + """ + Return a new nonterminal whose symbol is ``A/B``, where ``A`` is + the symbol for this nonterminal, and ``B`` is the symbol for rhs. + + :param rhs: The nonterminal used to form the right hand side + of the new nonterminal. + :type rhs: Nonterminal + :rtype: Nonterminal + """ + return Nonterminal(f"{self._symbol}/{rhs._symbol}") + + def __truediv__(self, rhs): + """ + Return a new nonterminal whose symbol is ``A/B``, where ``A`` is + the symbol for this nonterminal, and ``B`` is the symbol for rhs. + This function allows use of the slash ``/`` operator with + the future import of division. + + :param rhs: The nonterminal used to form the right hand side + of the new nonterminal. + :type rhs: Nonterminal + :rtype: Nonterminal + """ + return self.__div__(rhs) + + +def nonterminals(symbols): + """ + Given a string containing a list of symbol names, return a list of + ``Nonterminals`` constructed from those symbols. + + :param symbols: The symbol name string. This string can be + delimited by either spaces or commas. + :type symbols: str + :return: A list of ``Nonterminals`` constructed from the symbol + names given in ``symbols``. The ``Nonterminals`` are sorted + in the same order as the symbols names. + :rtype: list(Nonterminal) + """ + if "," in symbols: + symbol_list = symbols.split(",") + else: + symbol_list = symbols.split() + return [Nonterminal(s.strip()) for s in symbol_list] + + +class FeatStructNonterminal(FeatDict, Nonterminal): + """A feature structure that's also a nonterminal. It acts as its + own symbol, and automatically freezes itself when hashed.""" + + def __hash__(self): + self.freeze() + return FeatStruct.__hash__(self) + + def symbol(self): + return self + + +def is_nonterminal(item): + """ + :return: True if the item is a ``Nonterminal``. + :rtype: bool + """ + return isinstance(item, Nonterminal) + + +################################################################# +# Terminals +################################################################# + + +def is_terminal(item): + """ + Return True if the item is a terminal, which currently is + if it is hashable and not a ``Nonterminal``. + + :rtype: bool + """ + return hasattr(item, "__hash__") and not isinstance(item, Nonterminal) + + +################################################################# +# Productions +################################################################# + + +@total_ordering +class Production: + """ + A grammar production. Each production maps a single symbol + on the "left-hand side" to a sequence of symbols on the + "right-hand side". (In the case of context-free productions, + the left-hand side must be a ``Nonterminal``, and the right-hand + side is a sequence of terminals and ``Nonterminals``.) + "terminals" can be any immutable hashable object that is + not a ``Nonterminal``. Typically, terminals are strings + representing words, such as ``"dog"`` or ``"under"``. + + :see: ``CFG`` + :see: ``DependencyGrammar`` + :see: ``Nonterminal`` + :type _lhs: Nonterminal + :ivar _lhs: The left-hand side of the production. + :type _rhs: tuple(Nonterminal, terminal) + :ivar _rhs: The right-hand side of the production. + """ + + def __init__(self, lhs, rhs): + """ + Construct a new ``Production``. + + :param lhs: The left-hand side of the new ``Production``. + :type lhs: Nonterminal + :param rhs: The right-hand side of the new ``Production``. + :type rhs: sequence(Nonterminal and terminal) + """ + if isinstance(rhs, str): + raise TypeError( + "production right hand side should be a list, " "not a string" + ) + self._lhs = lhs + self._rhs = tuple(rhs) + + def lhs(self): + """ + Return the left-hand side of this ``Production``. + + :rtype: Nonterminal + """ + return self._lhs + + def rhs(self): + """ + Return the right-hand side of this ``Production``. + + :rtype: sequence(Nonterminal and terminal) + """ + return self._rhs + + def __len__(self): + """ + Return the length of the right-hand side. + + :rtype: int + """ + return len(self._rhs) + + def is_nonlexical(self): + """ + Return True if the right-hand side only contains ``Nonterminals`` + + :rtype: bool + """ + return all(is_nonterminal(n) for n in self._rhs) + + def is_lexical(self): + """ + Return True if the right-hand contain at least one terminal token. + + :rtype: bool + """ + return not self.is_nonlexical() + + def __str__(self): + """ + Return a verbose string representation of the ``Production``. + + :rtype: str + """ + result = "%s -> " % repr(self._lhs) + result += " ".join(repr(el) for el in self._rhs) + return result + + def __repr__(self): + """ + Return a concise string representation of the ``Production``. + + :rtype: str + """ + return "%s" % self + + def __eq__(self, other): + """ + Return True if this ``Production`` is equal to ``other``. + + :rtype: bool + """ + return ( + type(self) == type(other) + and self._lhs == other._lhs + and self._rhs == other._rhs + ) + + def __ne__(self, other): + return not self == other + + def __lt__(self, other): + if not isinstance(other, Production): + raise_unorderable_types("<", self, other) + return (self._lhs, self._rhs) < (other._lhs, other._rhs) + + def __hash__(self): + """ + Return a hash value for the ``Production``. + + :rtype: int + """ + return hash((self._lhs, self._rhs)) + + +class DependencyProduction(Production): + """ + A dependency grammar production. Each production maps a single + head word to an unordered list of one or more modifier words. + """ + + def __str__(self): + """ + Return a verbose string representation of the ``DependencyProduction``. + + :rtype: str + """ + result = f"'{self._lhs}' ->" + for elt in self._rhs: + result += f" '{elt}'" + return result + + +class ProbabilisticProduction(Production, ImmutableProbabilisticMixIn): + """ + A probabilistic context free grammar production. + A PCFG ``ProbabilisticProduction`` is essentially just a ``Production`` that + has an associated probability, which represents how likely it is that + this production will be used. In particular, the probability of a + ``ProbabilisticProduction`` records the likelihood that its right-hand side is + the correct instantiation for any given occurrence of its left-hand side. + + :see: ``Production`` + """ + + def __init__(self, lhs, rhs, **prob): + """ + Construct a new ``ProbabilisticProduction``. + + :param lhs: The left-hand side of the new ``ProbabilisticProduction``. + :type lhs: Nonterminal + :param rhs: The right-hand side of the new ``ProbabilisticProduction``. + :type rhs: sequence(Nonterminal and terminal) + :param prob: Probability parameters of the new ``ProbabilisticProduction``. + """ + ImmutableProbabilisticMixIn.__init__(self, **prob) + Production.__init__(self, lhs, rhs) + + def __str__(self): + return super().__str__() + ( + " [1.0]" if (self.prob() == 1.0) else " [%g]" % self.prob() + ) + + def __eq__(self, other): + return ( + type(self) == type(other) + and self._lhs == other._lhs + and self._rhs == other._rhs + and self.prob() == other.prob() + ) + + def __ne__(self, other): + return not self == other + + def __hash__(self): + return hash((self._lhs, self._rhs, self.prob())) + + +################################################################# +# Grammars +################################################################# + + +class CFG: + """ + A context-free grammar. A grammar consists of a start state and + a set of productions. The set of terminals and nonterminals is + implicitly specified by the productions. + + If you need efficient key-based access to productions, you + can use a subclass to implement it. + """ + + def __init__(self, start, productions, calculate_leftcorners=True): + """ + Create a new context-free grammar, from the given start state + and set of ``Production`` instances. + + :param start: The start symbol + :type start: Nonterminal + :param productions: The list of productions that defines the grammar + :type productions: list(Production) + :param calculate_leftcorners: False if we don't want to calculate the + leftcorner relation. In that case, some optimized chart parsers won't work. + :type calculate_leftcorners: bool + """ + if not is_nonterminal(start): + raise TypeError( + "start should be a Nonterminal object," + " not a %s" % type(start).__name__ + ) + + self._start = start + self._productions = productions + self._categories = {prod.lhs() for prod in productions} + self._calculate_indexes() + self._calculate_grammar_forms() + if calculate_leftcorners: + self._calculate_leftcorners() + + def _calculate_indexes(self): + self._lhs_index = {} + self._rhs_index = {} + self._empty_index = {} + self._lexical_index = {} + for prod in self._productions: + # Left hand side. + lhs = prod._lhs + if lhs not in self._lhs_index: + self._lhs_index[lhs] = [] + self._lhs_index[lhs].append(prod) + if prod._rhs: + # First item in right hand side. + rhs0 = prod._rhs[0] + if rhs0 not in self._rhs_index: + self._rhs_index[rhs0] = [] + self._rhs_index[rhs0].append(prod) + else: + # The right hand side is empty. + self._empty_index[prod.lhs()] = prod + # Lexical tokens in the right hand side. + for token in prod._rhs: + if is_terminal(token): + self._lexical_index.setdefault(token, set()).add(prod) + + def _calculate_leftcorners(self): + # Calculate leftcorner relations, for use in optimized parsing. + self._immediate_leftcorner_categories = {cat: {cat} for cat in self._categories} + self._immediate_leftcorner_words = {cat: set() for cat in self._categories} + for prod in self.productions(): + if len(prod) > 0: + cat, left = prod.lhs(), prod.rhs()[0] + if is_nonterminal(left): + self._immediate_leftcorner_categories[cat].add(left) + else: + self._immediate_leftcorner_words[cat].add(left) + + lc = transitive_closure(self._immediate_leftcorner_categories, reflexive=True) + self._leftcorners = lc + self._leftcorner_parents = invert_graph(lc) + + nr_leftcorner_categories = sum( + map(len, self._immediate_leftcorner_categories.values()) + ) + nr_leftcorner_words = sum(map(len, self._immediate_leftcorner_words.values())) + if nr_leftcorner_words > nr_leftcorner_categories > 10000: + # If the grammar is big, the leftcorner-word dictionary will be too large. + # In that case it is better to calculate the relation on demand. + self._leftcorner_words = None + return + + self._leftcorner_words = {} + for cat in self._leftcorners: + lefts = self._leftcorners[cat] + lc = self._leftcorner_words[cat] = set() + for left in lefts: + lc.update(self._immediate_leftcorner_words.get(left, set())) + + @classmethod + def fromstring(cls, input, encoding=None): + """ + Return the grammar instance corresponding to the input string(s). + + :param input: a grammar, either in the form of a string or as a list of strings. + """ + start, productions = read_grammar( + input, standard_nonterm_parser, encoding=encoding + ) + return cls(start, productions) + + def start(self): + """ + Return the start symbol of the grammar + + :rtype: Nonterminal + """ + return self._start + + # tricky to balance readability and efficiency here! + # can't use set operations as they don't preserve ordering + def productions(self, lhs=None, rhs=None, empty=False): + """ + Return the grammar productions, filtered by the left-hand side + or the first item in the right-hand side. + + :param lhs: Only return productions with the given left-hand side. + :param rhs: Only return productions with the given first item + in the right-hand side. + :param empty: Only return productions with an empty right-hand side. + :return: A list of productions matching the given constraints. + :rtype: list(Production) + """ + if rhs and empty: + raise ValueError( + "You cannot select empty and non-empty " "productions at the same time." + ) + + # no constraints so return everything + if not lhs and not rhs: + if not empty: + return self._productions + else: + return self._empty_index.values() + + # only lhs specified so look up its index + elif lhs and not rhs: + if not empty: + return self._lhs_index.get(lhs, []) + elif lhs in self._empty_index: + return [self._empty_index[lhs]] + else: + return [] + + # only rhs specified so look up its index + elif rhs and not lhs: + return self._rhs_index.get(rhs, []) + + # intersect + else: + return [ + prod + for prod in self._lhs_index.get(lhs, []) + if prod in self._rhs_index.get(rhs, []) + ] + + def leftcorners(self, cat): + """ + Return the set of all nonterminals that the given nonterminal + can start with, including itself. + + This is the reflexive, transitive closure of the immediate + leftcorner relation: (A > B) iff (A -> B beta) + + :param cat: the parent of the leftcorners + :type cat: Nonterminal + :return: the set of all leftcorners + :rtype: set(Nonterminal) + """ + return self._leftcorners.get(cat, {cat}) + + def is_leftcorner(self, cat, left): + """ + True if left is a leftcorner of cat, where left can be a + terminal or a nonterminal. + + :param cat: the parent of the leftcorner + :type cat: Nonterminal + :param left: the suggested leftcorner + :type left: Terminal or Nonterminal + :rtype: bool + """ + if is_nonterminal(left): + return left in self.leftcorners(cat) + elif self._leftcorner_words: + return left in self._leftcorner_words.get(cat, set()) + else: + return any( + left in self._immediate_leftcorner_words.get(parent, set()) + for parent in self.leftcorners(cat) + ) + + def leftcorner_parents(self, cat): + """ + Return the set of all nonterminals for which the given category + is a left corner. This is the inverse of the leftcorner relation. + + :param cat: the suggested leftcorner + :type cat: Nonterminal + :return: the set of all parents to the leftcorner + :rtype: set(Nonterminal) + """ + return self._leftcorner_parents.get(cat, {cat}) + + def check_coverage(self, tokens): + """ + Check whether the grammar rules cover the given list of tokens. + If not, then raise an exception. + + :type tokens: list(str) + """ + missing = [tok for tok in tokens if not self._lexical_index.get(tok)] + if missing: + missing = ", ".join(f"{w!r}" for w in missing) + raise ValueError( + "Grammar does not cover some of the " "input words: %r." % missing + ) + + def _calculate_grammar_forms(self): + """ + Pre-calculate of which form(s) the grammar is. + """ + prods = self._productions + self._is_lexical = all(p.is_lexical() for p in prods) + self._is_nonlexical = all(p.is_nonlexical() for p in prods if len(p) != 1) + self._min_len = min(len(p) for p in prods) + self._max_len = max(len(p) for p in prods) + self._all_unary_are_lexical = all(p.is_lexical() for p in prods if len(p) == 1) + + def is_lexical(self): + """ + Return True if all productions are lexicalised. + """ + return self._is_lexical + + def is_nonlexical(self): + """ + Return True if all lexical rules are "preterminals", that is, + unary rules which can be separated in a preprocessing step. + + This means that all productions are of the forms + A -> B1 ... Bn (n>=0), or A -> "s". + + Note: is_lexical() and is_nonlexical() are not opposites. + There are grammars which are neither, and grammars which are both. + """ + return self._is_nonlexical + + def min_len(self): + """ + Return the right-hand side length of the shortest grammar production. + """ + return self._min_len + + def max_len(self): + """ + Return the right-hand side length of the longest grammar production. + """ + return self._max_len + + def is_nonempty(self): + """ + Return True if there are no empty productions. + """ + return self._min_len > 0 + + def is_binarised(self): + """ + Return True if all productions are at most binary. + Note that there can still be empty and unary productions. + """ + return self._max_len <= 2 + + def is_flexible_chomsky_normal_form(self): + """ + Return True if all productions are of the forms + A -> B C, A -> B, or A -> "s". + """ + return self.is_nonempty() and self.is_nonlexical() and self.is_binarised() + + def is_chomsky_normal_form(self): + """ + Return True if the grammar is of Chomsky Normal Form, i.e. all productions + are of the form A -> B C, or A -> "s". + """ + return self.is_flexible_chomsky_normal_form() and self._all_unary_are_lexical + + def chomsky_normal_form(self, new_token_padding="@$@", flexible=False): + """ + Returns a new Grammar that is in chomsky normal + + :param: new_token_padding + Customise new rule formation during binarisation + """ + if self.is_chomsky_normal_form(): + return self + if self.productions(empty=True): + raise ValueError( + "Grammar has Empty rules. " "Cannot deal with them at the moment" + ) + + step1 = CFG.eliminate_start(self) + step2 = CFG.binarize(step1, new_token_padding) + step3 = CFG.remove_mixed_rules(step2, new_token_padding) + if flexible: + return step3 + step4 = CFG.remove_unitary_rules(step3) + return CFG(step4.start(), list(set(step4.productions()))) + + @classmethod + def remove_unitary_rules(cls, grammar): + """ + Remove nonlexical unitary rules and convert them to + lexical + """ + result = [] + unitary = deque([]) + for rule in grammar.productions(): + if len(rule) == 1 and rule.is_nonlexical(): + unitary.append(rule) + else: + result.append(rule) + + while unitary: + rule = unitary.popleft() + for item in grammar.productions(lhs=rule.rhs()[0]): + new_rule = Production(rule.lhs(), item.rhs()) + if len(new_rule) != 1 or new_rule.is_lexical(): + result.append(new_rule) + else: + unitary.append(new_rule) + + n_grammar = CFG(grammar.start(), result) + return n_grammar + + @classmethod + def binarize(cls, grammar, padding="@$@"): + """ + Convert all non-binary rules into binary by introducing + new tokens. + Example:: + + Original: + A => B C D + After Conversion: + A => B A@$@B + A@$@B => C D + """ + result = [] + + for rule in grammar.productions(): + if len(rule.rhs()) > 2: + # this rule needs to be broken down + left_side = rule.lhs() + for k in range(0, len(rule.rhs()) - 2): + tsym = rule.rhs()[k] + new_sym = Nonterminal(left_side.symbol() + padding + tsym.symbol()) + new_production = Production(left_side, (tsym, new_sym)) + left_side = new_sym + result.append(new_production) + last_prd = Production(left_side, rule.rhs()[-2:]) + result.append(last_prd) + else: + result.append(rule) + + n_grammar = CFG(grammar.start(), result) + return n_grammar + + @classmethod + def eliminate_start(cls, grammar): + """ + Eliminate start rule in case it appears on RHS + Example: S -> S0 S1 and S0 -> S1 S + Then another rule S0_Sigma -> S is added + """ + start = grammar.start() + result = [] + need_to_add = None + for rule in grammar.productions(): + if start in rule.rhs(): + need_to_add = True + result.append(rule) + if need_to_add: + start = Nonterminal("S0_SIGMA") + result.append(Production(start, [grammar.start()])) + n_grammar = CFG(start, result) + return n_grammar + return grammar + + @classmethod + def remove_mixed_rules(cls, grammar, padding="@$@"): + """ + Convert all mixed rules containing terminals and non-terminals + into dummy non-terminals. + Example:: + + Original: + A => term B + After Conversion: + A => TERM@$@TERM B + TERM@$@TERM => term + """ + result = [] + dummy_nonterms = {} + for rule in grammar.productions(): + if not rule.is_lexical() or len(rule.rhs()) <= 1: + result.append(rule) + continue + + new_rhs = [] + for item in rule.rhs(): + if is_nonterminal(item): + new_rhs.append(item) + else: + if item not in dummy_nonterms: + sanitized_term = "".join( + _STANDARD_NONTERM_RE.findall(item.upper()) + ) + dummy_nonterm_symbol = ( + f"{sanitized_term}{padding}{sanitized_term}" + ) + dummy_nonterms[item] = Nonterminal(dummy_nonterm_symbol) + + new_rhs.append(dummy_nonterms[item]) + result.append(Production(dummy_nonterms[item], rhs=[item])) + + result.append(Production(rule.lhs(), new_rhs)) + + n_grammar = CFG(grammar.start(), result) + return n_grammar + + def __repr__(self): + return "" % len(self._productions) + + def __str__(self): + result = "Grammar with %d productions" % len(self._productions) + result += " (start state = %r)" % self._start + for production in self._productions: + result += "\n %s" % production + return result + + +class FeatureGrammar(CFG): + """ + A feature-based grammar. This is equivalent to a + ``CFG`` whose nonterminals are all + ``FeatStructNonterminal``. + + A grammar consists of a start state and a set of + productions. The set of terminals and nonterminals + is implicitly specified by the productions. + """ + + def __init__(self, start, productions): + """ + Create a new feature-based grammar, from the given start + state and set of ``Productions``. + + :param start: The start symbol + :type start: FeatStructNonterminal + :param productions: The list of productions that defines the grammar + :type productions: list(Production) + """ + CFG.__init__(self, start, productions) + + # The difference with CFG is that the productions are + # indexed on the TYPE feature of the nonterminals. + # This is calculated by the method _get_type_if_possible(). + + def _calculate_indexes(self): + self._lhs_index = {} + self._rhs_index = {} + self._empty_index = {} + self._empty_productions = [] + self._lexical_index = {} + for prod in self._productions: + # Left hand side. + lhs = self._get_type_if_possible(prod._lhs) + if lhs not in self._lhs_index: + self._lhs_index[lhs] = [] + self._lhs_index[lhs].append(prod) + if prod._rhs: + # First item in right hand side. + rhs0 = self._get_type_if_possible(prod._rhs[0]) + if rhs0 not in self._rhs_index: + self._rhs_index[rhs0] = [] + self._rhs_index[rhs0].append(prod) + else: + # The right hand side is empty. + if lhs not in self._empty_index: + self._empty_index[lhs] = [] + self._empty_index[lhs].append(prod) + self._empty_productions.append(prod) + # Lexical tokens in the right hand side. + for token in prod._rhs: + if is_terminal(token): + self._lexical_index.setdefault(token, set()).add(prod) + + @classmethod + def fromstring( + cls, input, features=None, logic_parser=None, fstruct_reader=None, encoding=None + ): + """ + Return a feature structure based grammar. + + :param input: a grammar, either in the form of a string or else + as a list of strings. + :param features: a tuple of features (default: SLASH, TYPE) + :param logic_parser: a parser for lambda-expressions, + by default, ``LogicParser()`` + :param fstruct_reader: a feature structure parser + (only if features and logic_parser is None) + """ + if features is None: + features = (SLASH, TYPE) + + if fstruct_reader is None: + fstruct_reader = FeatStructReader( + features, FeatStructNonterminal, logic_parser=logic_parser + ) + elif logic_parser is not None: + raise Exception( + "'logic_parser' and 'fstruct_reader' must " "not both be set" + ) + + start, productions = read_grammar( + input, fstruct_reader.read_partial, encoding=encoding + ) + return cls(start, productions) + + def productions(self, lhs=None, rhs=None, empty=False): + """ + Return the grammar productions, filtered by the left-hand side + or the first item in the right-hand side. + + :param lhs: Only return productions with the given left-hand side. + :param rhs: Only return productions with the given first item + in the right-hand side. + :param empty: Only return productions with an empty right-hand side. + :rtype: list(Production) + """ + if rhs and empty: + raise ValueError( + "You cannot select empty and non-empty " "productions at the same time." + ) + + # no constraints so return everything + if not lhs and not rhs: + if empty: + return self._empty_productions + else: + return self._productions + + # only lhs specified so look up its index + elif lhs and not rhs: + if empty: + return self._empty_index.get(self._get_type_if_possible(lhs), []) + else: + return self._lhs_index.get(self._get_type_if_possible(lhs), []) + + # only rhs specified so look up its index + elif rhs and not lhs: + return self._rhs_index.get(self._get_type_if_possible(rhs), []) + + # intersect + else: + return [ + prod + for prod in self._lhs_index.get(self._get_type_if_possible(lhs), []) + if prod in self._rhs_index.get(self._get_type_if_possible(rhs), []) + ] + + def leftcorners(self, cat): + """ + Return the set of all words that the given category can start with. + Also called the "first set" in compiler construction. + """ + raise NotImplementedError("Not implemented yet") + + def leftcorner_parents(self, cat): + """ + Return the set of all categories for which the given category + is a left corner. + """ + raise NotImplementedError("Not implemented yet") + + def _get_type_if_possible(self, item): + """ + Helper function which returns the ``TYPE`` feature of the ``item``, + if it exists, otherwise it returns the ``item`` itself + """ + if isinstance(item, dict) and TYPE in item: + return FeatureValueType(item[TYPE]) + else: + return item + + +@total_ordering +class FeatureValueType: + """ + A helper class for ``FeatureGrammars``, designed to be different + from ordinary strings. This is to stop the ``FeatStruct`` + ``FOO[]`` from being compare equal to the terminal "FOO". + """ + + def __init__(self, value): + self._value = value + + def __repr__(self): + return "<%s>" % self._value + + def __eq__(self, other): + return type(self) == type(other) and self._value == other._value + + def __ne__(self, other): + return not self == other + + def __lt__(self, other): + if not isinstance(other, FeatureValueType): + raise_unorderable_types("<", self, other) + return self._value < other._value + + def __hash__(self): + return hash(self._value) + + +class DependencyGrammar: + """ + A dependency grammar. A DependencyGrammar consists of a set of + productions. Each production specifies a head/modifier relationship + between a pair of words. + """ + + def __init__(self, productions): + """ + Create a new dependency grammar, from the set of ``Productions``. + + :param productions: The list of productions that defines the grammar + :type productions: list(Production) + """ + self._productions = productions + + @classmethod + def fromstring(cls, input): + productions = [] + for linenum, line in enumerate(input.split("\n")): + line = line.strip() + if line.startswith("#") or line == "": + continue + try: + productions += _read_dependency_production(line) + except ValueError as e: + raise ValueError(f"Unable to parse line {linenum}: {line}") from e + if len(productions) == 0: + raise ValueError("No productions found!") + return cls(productions) + + def contains(self, head, mod): + """ + :param head: A head word. + :type head: str + :param mod: A mod word, to test as a modifier of 'head'. + :type mod: str + + :return: true if this ``DependencyGrammar`` contains a + ``DependencyProduction`` mapping 'head' to 'mod'. + :rtype: bool + """ + for production in self._productions: + for possibleMod in production._rhs: + if production._lhs == head and possibleMod == mod: + return True + return False + + def __contains__(self, head_mod): + """ + Return True if this ``DependencyGrammar`` contains a + ``DependencyProduction`` mapping 'head' to 'mod'. + + :param head_mod: A tuple of a head word and a mod word, + to test as a modifier of 'head'. + :type head: Tuple[str, str] + :rtype: bool + """ + try: + head, mod = head_mod + except ValueError as e: + raise ValueError( + "Must use a tuple of strings, e.g. `('price', 'of') in grammar`" + ) from e + return self.contains(head, mod) + + # # should be rewritten, the set comp won't work in all comparisons + # def contains_exactly(self, head, modlist): + # for production in self._productions: + # if(len(production._rhs) == len(modlist)): + # if(production._lhs == head): + # set1 = Set(production._rhs) + # set2 = Set(modlist) + # if(set1 == set2): + # return True + # return False + + def __str__(self): + """ + Return a verbose string representation of the ``DependencyGrammar`` + + :rtype: str + """ + str = "Dependency grammar with %d productions" % len(self._productions) + for production in self._productions: + str += "\n %s" % production + return str + + def __repr__(self): + """ + Return a concise string representation of the ``DependencyGrammar`` + """ + return "Dependency grammar with %d productions" % len(self._productions) + + +class ProbabilisticDependencyGrammar: + """ """ + + def __init__(self, productions, events, tags): + self._productions = productions + self._events = events + self._tags = tags + + def contains(self, head, mod): + """ + Return True if this ``DependencyGrammar`` contains a + ``DependencyProduction`` mapping 'head' to 'mod'. + + :param head: A head word. + :type head: str + :param mod: A mod word, to test as a modifier of 'head'. + :type mod: str + :rtype: bool + """ + for production in self._productions: + for possibleMod in production._rhs: + if production._lhs == head and possibleMod == mod: + return True + return False + + def __str__(self): + """ + Return a verbose string representation of the ``ProbabilisticDependencyGrammar`` + + :rtype: str + """ + str = "Statistical dependency grammar with %d productions" % len( + self._productions + ) + for production in self._productions: + str += "\n %s" % production + str += "\nEvents:" + for event in self._events: + str += "\n %d:%s" % (self._events[event], event) + str += "\nTags:" + for tag_word in self._tags: + str += f"\n {tag_word}:\t({self._tags[tag_word]})" + return str + + def __repr__(self): + """ + Return a concise string representation of the ``ProbabilisticDependencyGrammar`` + """ + return "Statistical Dependency grammar with %d productions" % len( + self._productions + ) + + +class PCFG(CFG): + """ + A probabilistic context-free grammar. A PCFG consists of a + start state and a set of productions with probabilities. The set of + terminals and nonterminals is implicitly specified by the productions. + + PCFG productions use the ``ProbabilisticProduction`` class. + ``PCFGs`` impose the constraint that the set of productions with + any given left-hand-side must have probabilities that sum to 1 + (allowing for a small margin of error). + + If you need efficient key-based access to productions, you can use + a subclass to implement it. + + :type EPSILON: float + :cvar EPSILON: The acceptable margin of error for checking that + productions with a given left-hand side have probabilities + that sum to 1. + """ + + EPSILON = 0.01 + + def __init__(self, start, productions, calculate_leftcorners=True): + """ + Create a new context-free grammar, from the given start state + and set of ``ProbabilisticProductions``. + + :param start: The start symbol + :type start: Nonterminal + :param productions: The list of productions that defines the grammar + :type productions: list(Production) + :raise ValueError: if the set of productions with any left-hand-side + do not have probabilities that sum to a value within + EPSILON of 1. + :param calculate_leftcorners: False if we don't want to calculate the + leftcorner relation. In that case, some optimized chart parsers won't work. + :type calculate_leftcorners: bool + """ + CFG.__init__(self, start, productions, calculate_leftcorners) + + # Make sure that the probabilities sum to one. + probs = {} + for production in productions: + probs[production.lhs()] = probs.get(production.lhs(), 0) + production.prob() + for lhs, p in probs.items(): + if not ((1 - PCFG.EPSILON) < p < (1 + PCFG.EPSILON)): + raise ValueError("Productions for %r do not sum to 1" % lhs) + + @classmethod + def fromstring(cls, input, encoding=None): + """ + Return a probabilistic context-free grammar corresponding to the + input string(s). + + :param input: a grammar, either in the form of a string or else + as a list of strings. + """ + start, productions = read_grammar( + input, standard_nonterm_parser, probabilistic=True, encoding=encoding + ) + return cls(start, productions) + + +################################################################# +# Inducing Grammars +################################################################# + +# Contributed by Nathan Bodenstab + + +def induce_pcfg(start, productions): + r""" + Induce a PCFG grammar from a list of productions. + + The probability of a production A -> B C in a PCFG is: + + | count(A -> B C) + | P(B, C | A) = --------------- where \* is any right hand side + | count(A -> \*) + + :param start: The start symbol + :type start: Nonterminal + :param productions: The list of productions that defines the grammar + :type productions: list(Production) + """ + # Production count: the number of times a given production occurs + pcount = {} + + # LHS-count: counts the number of times a given lhs occurs + lcount = {} + + for prod in productions: + lcount[prod.lhs()] = lcount.get(prod.lhs(), 0) + 1 + pcount[prod] = pcount.get(prod, 0) + 1 + + prods = [ + ProbabilisticProduction(p.lhs(), p.rhs(), prob=pcount[p] / lcount[p.lhs()]) + for p in pcount + ] + return PCFG(start, prods) + + +################################################################# +# Helper functions for reading productions +################################################################# + + +def _read_cfg_production(input): + """ + Return a list of context-free ``Productions``. + """ + return _read_production(input, standard_nonterm_parser) + + +def _read_pcfg_production(input): + """ + Return a list of PCFG ``ProbabilisticProductions``. + """ + return _read_production(input, standard_nonterm_parser, probabilistic=True) + + +def _read_fcfg_production(input, fstruct_reader): + """ + Return a list of feature-based ``Productions``. + """ + return _read_production(input, fstruct_reader) + + +# Parsing generic grammars + +_ARROW_RE = re.compile(r"\s* -> \s*", re.VERBOSE) +_PROBABILITY_RE = re.compile(r"( \[ [\d\.]+ \] ) \s*", re.VERBOSE) +_TERMINAL_RE = re.compile(r'( "[^"]*" | \'[^\']*\' ) \s*', re.VERBOSE) +_DISJUNCTION_RE = re.compile(r"\| \s*", re.VERBOSE) + + +def _read_production(line, nonterm_parser, probabilistic=False): + """ + Parse a grammar rule, given as a string, and return + a list of productions. + """ + pos = 0 + + # Parse the left-hand side. + lhs, pos = nonterm_parser(line, pos) + + # Skip over the arrow. + m = _ARROW_RE.match(line, pos) + if not m: + raise ValueError("Expected an arrow") + pos = m.end() + + # Parse the right hand side. + probabilities = [0.0] + rhsides = [[]] + while pos < len(line): + # Probability. + m = _PROBABILITY_RE.match(line, pos) + if probabilistic and m: + pos = m.end() + probabilities[-1] = float(m.group(1)[1:-1]) + if probabilities[-1] > 1.0: + raise ValueError( + "Production probability %f, " + "should not be greater than 1.0" % (probabilities[-1],) + ) + + # String -- add terminal. + elif line[pos] in "'\"": + m = _TERMINAL_RE.match(line, pos) + if not m: + raise ValueError("Unterminated string") + rhsides[-1].append(m.group(1)[1:-1]) + pos = m.end() + + # Vertical bar -- start new rhside. + elif line[pos] == "|": + m = _DISJUNCTION_RE.match(line, pos) + probabilities.append(0.0) + rhsides.append([]) + pos = m.end() + + # Anything else -- nonterminal. + else: + nonterm, pos = nonterm_parser(line, pos) + rhsides[-1].append(nonterm) + + if probabilistic: + return [ + ProbabilisticProduction(lhs, rhs, prob=probability) + for (rhs, probability) in zip(rhsides, probabilities) + ] + else: + return [Production(lhs, rhs) for rhs in rhsides] + + +################################################################# +# Reading Phrase Structure Grammars +################################################################# + + +def read_grammar(input, nonterm_parser, probabilistic=False, encoding=None): + """ + Return a pair consisting of a starting category and a list of + ``Productions``. + + :param input: a grammar, either in the form of a string or else + as a list of strings. + :param nonterm_parser: a function for parsing nonterminals. + It should take a ``(string, position)`` as argument and + return a ``(nonterminal, position)`` as result. + :param probabilistic: are the grammar rules probabilistic? + :type probabilistic: bool + :param encoding: the encoding of the grammar, if it is a binary string + :type encoding: str + """ + if encoding is not None: + input = input.decode(encoding) + if isinstance(input, str): + lines = input.split("\n") + else: + lines = input + + start = None + productions = [] + continue_line = "" + for linenum, line in enumerate(lines): + line = continue_line + line.strip() + if line.startswith("#") or line == "": + continue + if line.endswith("\\"): + continue_line = line[:-1].rstrip() + " " + continue + continue_line = "" + try: + if line[0] == "%": + directive, args = line[1:].split(None, 1) + if directive == "start": + start, pos = nonterm_parser(args, 0) + if pos != len(args): + raise ValueError("Bad argument to start directive") + else: + raise ValueError("Bad directive") + else: + # expand out the disjunctions on the RHS + productions += _read_production(line, nonterm_parser, probabilistic) + except ValueError as e: + raise ValueError(f"Unable to parse line {linenum + 1}: {line}\n{e}") from e + + if not productions: + raise ValueError("No productions found!") + if not start: + start = productions[0].lhs() + return (start, productions) + + +_STANDARD_NONTERM_RE = re.compile(r"( [\w/][\w/^<>-]* ) \s*", re.VERBOSE) + + +def standard_nonterm_parser(string, pos): + m = _STANDARD_NONTERM_RE.match(string, pos) + if not m: + raise ValueError("Expected a nonterminal, found: " + string[pos:]) + return (Nonterminal(m.group(1)), m.end()) + + +################################################################# +# Reading Dependency Grammars +################################################################# + +_READ_DG_RE = re.compile( + r"""^\s* # leading whitespace + ('[^']+')\s* # single-quoted lhs + (?:[-=]+>)\s* # arrow + (?:( # rhs: + "[^"]+" # doubled-quoted terminal + | '[^']+' # single-quoted terminal + | \| # disjunction + ) + \s*) # trailing space + *$""", # zero or more copies + re.VERBOSE, +) +_SPLIT_DG_RE = re.compile(r"""('[^']'|[-=]+>|"[^"]+"|'[^']+'|\|)""") + + +def _read_dependency_production(s): + if not _READ_DG_RE.match(s): + raise ValueError("Bad production string") + pieces = _SPLIT_DG_RE.split(s) + pieces = [p for i, p in enumerate(pieces) if i % 2 == 1] + lhside = pieces[0].strip("'\"") + rhsides = [[]] + for piece in pieces[2:]: + if piece == "|": + rhsides.append([]) + else: + rhsides[-1].append(piece.strip("'\"")) + return [DependencyProduction(lhside, rhside) for rhside in rhsides] + + +################################################################# +# Demonstration +################################################################# + + +def cfg_demo(): + """ + A demonstration showing how ``CFGs`` can be created and used. + """ + + from nltk import CFG, Production, nonterminals + + # Create some nonterminals + S, NP, VP, PP = nonterminals("S, NP, VP, PP") + N, V, P, Det = nonterminals("N, V, P, Det") + VP_slash_NP = VP / NP + + print("Some nonterminals:", [S, NP, VP, PP, N, V, P, Det, VP / NP]) + print(" S.symbol() =>", repr(S.symbol())) + print() + + print(Production(S, [NP])) + + # Create some Grammar Productions + grammar = CFG.fromstring( + """ + S -> NP VP + PP -> P NP + NP -> Det N | NP PP + VP -> V NP | VP PP + Det -> 'a' | 'the' + N -> 'dog' | 'cat' + V -> 'chased' | 'sat' + P -> 'on' | 'in' + """ + ) + + print("A Grammar:", repr(grammar)) + print(" grammar.start() =>", repr(grammar.start())) + print(" grammar.productions() =>", end=" ") + # Use string.replace(...) is to line-wrap the output. + print(repr(grammar.productions()).replace(",", ",\n" + " " * 25)) + print() + + +def pcfg_demo(): + """ + A demonstration showing how a ``PCFG`` can be created and used. + """ + + from nltk import induce_pcfg, treetransforms + from nltk.corpus import treebank + from nltk.parse import pchart + + toy_pcfg1 = PCFG.fromstring( + """ + S -> NP VP [1.0] + NP -> Det N [0.5] | NP PP [0.25] | 'John' [0.1] | 'I' [0.15] + Det -> 'the' [0.8] | 'my' [0.2] + N -> 'man' [0.5] | 'telescope' [0.5] + VP -> VP PP [0.1] | V NP [0.7] | V [0.2] + V -> 'ate' [0.35] | 'saw' [0.65] + PP -> P NP [1.0] + P -> 'with' [0.61] | 'under' [0.39] + """ + ) + + toy_pcfg2 = PCFG.fromstring( + """ + S -> NP VP [1.0] + VP -> V NP [.59] + VP -> V [.40] + VP -> VP PP [.01] + NP -> Det N [.41] + NP -> Name [.28] + NP -> NP PP [.31] + PP -> P NP [1.0] + V -> 'saw' [.21] + V -> 'ate' [.51] + V -> 'ran' [.28] + N -> 'boy' [.11] + N -> 'cookie' [.12] + N -> 'table' [.13] + N -> 'telescope' [.14] + N -> 'hill' [.5] + Name -> 'Jack' [.52] + Name -> 'Bob' [.48] + P -> 'with' [.61] + P -> 'under' [.39] + Det -> 'the' [.41] + Det -> 'a' [.31] + Det -> 'my' [.28] + """ + ) + + pcfg_prods = toy_pcfg1.productions() + + pcfg_prod = pcfg_prods[2] + print("A PCFG production:", repr(pcfg_prod)) + print(" pcfg_prod.lhs() =>", repr(pcfg_prod.lhs())) + print(" pcfg_prod.rhs() =>", repr(pcfg_prod.rhs())) + print(" pcfg_prod.prob() =>", repr(pcfg_prod.prob())) + print() + + grammar = toy_pcfg2 + print("A PCFG grammar:", repr(grammar)) + print(" grammar.start() =>", repr(grammar.start())) + print(" grammar.productions() =>", end=" ") + # Use .replace(...) is to line-wrap the output. + print(repr(grammar.productions()).replace(",", ",\n" + " " * 26)) + print() + + # extract productions from three trees and induce the PCFG + print("Induce PCFG grammar from treebank data:") + + productions = [] + item = treebank._fileids[0] + for tree in treebank.parsed_sents(item)[:3]: + # perform optional tree transformations, e.g.: + tree.collapse_unary(collapsePOS=False) + tree.chomsky_normal_form(horzMarkov=2) + + productions += tree.productions() + + S = Nonterminal("S") + grammar = induce_pcfg(S, productions) + print(grammar) + print() + + print("Parse sentence using induced grammar:") + + parser = pchart.InsideChartParser(grammar) + parser.trace(3) + + # doesn't work as tokens are different: + # sent = treebank.tokenized('wsj_0001.mrg')[0] + + sent = treebank.parsed_sents(item)[0].leaves() + print(sent) + for parse in parser.parse(sent): + print(parse) + + +def fcfg_demo(): + import nltk.data + + g = nltk.data.load("grammars/book_grammars/feat0.fcfg") + print(g) + print() + + +def dg_demo(): + """ + A demonstration showing the creation and inspection of a + ``DependencyGrammar``. + """ + grammar = DependencyGrammar.fromstring( + """ + 'scratch' -> 'cats' | 'walls' + 'walls' -> 'the' + 'cats' -> 'the' + """ + ) + print(grammar) + + +def sdg_demo(): + """ + A demonstration of how to read a string representation of + a CoNLL format dependency tree. + """ + from nltk.parse import DependencyGraph + + dg = DependencyGraph( + """ + 1 Ze ze Pron Pron per|3|evofmv|nom 2 su _ _ + 2 had heb V V trans|ovt|1of2of3|ev 0 ROOT _ _ + 3 met met Prep Prep voor 8 mod _ _ + 4 haar haar Pron Pron bez|3|ev|neut|attr 5 det _ _ + 5 moeder moeder N N soort|ev|neut 3 obj1 _ _ + 6 kunnen kan V V hulp|ott|1of2of3|mv 2 vc _ _ + 7 gaan ga V V hulp|inf 6 vc _ _ + 8 winkelen winkel V V intrans|inf 11 cnj _ _ + 9 , , Punc Punc komma 8 punct _ _ + 10 zwemmen zwem V V intrans|inf 11 cnj _ _ + 11 of of Conj Conj neven 7 vc _ _ + 12 terrassen terras N N soort|mv|neut 11 cnj _ _ + 13 . . Punc Punc punt 12 punct _ _ + """ + ) + tree = dg.tree() + print(tree.pprint()) + + +def demo(): + cfg_demo() + pcfg_demo() + fcfg_demo() + dg_demo() + sdg_demo() + + +if __name__ == "__main__": + demo() + +__all__ = [ + "Nonterminal", + "nonterminals", + "CFG", + "Production", + "PCFG", + "ProbabilisticProduction", + "DependencyGrammar", + "DependencyProduction", + "ProbabilisticDependencyGrammar", + "induce_pcfg", + "read_grammar", +] diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/help.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/help.py new file mode 100644 index 0000000000000000000000000000000000000000..c5254e7b431b07c4a374e84a738716c061194f4a --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/help.py @@ -0,0 +1,68 @@ +# Natural Language Toolkit (NLTK) Help +# +# Copyright (C) 2001-2026 NLTK Project +# Authors: Steven Bird +# URL: +# For license information, see LICENSE.TXT + +""" +Provide structured access to documentation. +""" + +import json +import re +from textwrap import wrap + +from nltk.data import find, open_datafile + + +def brown_tagset(tagpattern=None): + _format_tagset("brown_tagset", tagpattern) + + +def claws5_tagset(tagpattern=None): + _format_tagset("claws5_tagset", tagpattern) + + +def upenn_tagset(tagpattern=None): + _format_tagset("upenn_tagset", tagpattern) + + +##################################################################### +# UTILITIES +##################################################################### + + +def _print_entries(tags, tagdict): + for tag in tags: + entry = tagdict[tag] + defn = [tag + ": " + entry[0]] + examples = wrap( + entry[1], width=75, initial_indent=" ", subsequent_indent=" " + ) + print("\n".join(defn + examples)) + + +def _format_tagset(tagset, tagpattern=None): + # Load tagset from json file. + with open_datafile(find("help/tagsets_json/PY3_json/"), f"{tagset}.json") as fin: + tagdict = json.load(fin) + + if not tagpattern: + _print_entries(sorted(tagdict), tagdict) + elif tagpattern in tagdict: + _print_entries([tagpattern], tagdict) + else: + tagpattern = re.compile(tagpattern) + tags = [tag for tag in sorted(tagdict) if tagpattern.match(tag)] + if tags: + _print_entries(tags, tagdict) + else: + print("No matching tags found.") + + +if __name__ == "__main__": + brown_tagset(r"NN.*") + upenn_tagset(r".*\$") + claws5_tagset("UNDEFINED") + brown_tagset(r"NN") diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/internals.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/internals.py new file mode 100644 index 0000000000000000000000000000000000000000..2ec47ce7630a7d0a06c7e275b43187390c12d1a4 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/internals.py @@ -0,0 +1,1125 @@ +# Natural Language Toolkit: Internal utility functions +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Steven Bird +# Edward Loper +# Nitin Madnani +# URL: +# For license information, see LICENSE.TXT + +import fnmatch +import locale +import os +import re +import stat +import subprocess +import sys +import textwrap +import types +import warnings +from xml.etree import ElementTree + +########################################################################## +# Java Via Command-Line +########################################################################## + +_java_bin = None +_java_options = [] + + +# [xx] add classpath option to config_java? +def config_java(bin=None, options=None, verbose=False): + """ + Configure nltk's java interface, by letting nltk know where it can + find the Java binary, and what extra options (if any) should be + passed to Java when it is run. + + :param bin: The full path to the Java binary. If not specified, + then nltk will search the system for a Java binary; and if + one is not found, it will raise a ``LookupError`` exception. + :type bin: str + :param options: A list of options that should be passed to the + Java binary when it is called. A common value is + ``'-Xmx512m'``, which tells Java binary to increase + the maximum heap size to 512 megabytes. If no options are + specified, then do not modify the options list. + :type options: list(str) + """ + global _java_bin, _java_options + _java_bin = find_binary( + "java", + bin, + env_vars=["JAVAHOME", "JAVA_HOME"], + verbose=verbose, + binary_names=["java.exe"], + ) + + if options is not None: + if isinstance(options, str): + options = options.split() + _java_options = list(options) + + +def java(cmd, classpath=None, stdin=None, stdout=None, stderr=None, blocking=True): + """ + Execute the given java command, by opening a subprocess that calls + Java. If java has not yet been configured, it will be configured + by calling ``config_java()`` with no arguments. + + :param cmd: The java command that should be called, formatted as + a list of strings. Typically, the first string will be the name + of the java class; and the remaining strings will be arguments + for that java class. + :type cmd: list(str) + + :param classpath: A ``':'`` separated list of directories, JAR + archives, and ZIP archives to search for class files. + :type classpath: str + + :param stdin: Specify the executed program's + standard input file handles, respectively. Valid values are ``subprocess.PIPE``, + an existing file descriptor (a positive integer), an existing + file object, 'pipe', 'stdout', 'devnull' and None. ``subprocess.PIPE`` indicates that a + new pipe to the child should be created. With None, no + redirection will occur; the child's file handles will be + inherited from the parent. Additionally, stderr can be + ``subprocess.STDOUT``, which indicates that the stderr data + from the applications should be captured into the same file + handle as for stdout. + + :param stdout: Specify the executed program's standard output file + handle. See ``stdin`` for valid values. + + :param stderr: Specify the executed program's standard error file + handle. See ``stdin`` for valid values. + + + :param blocking: If ``false``, then return immediately after + spawning the subprocess. In this case, the return value is + the ``Popen`` object, and not a ``(stdout, stderr)`` tuple. + + :return: If ``blocking=True``, then return a tuple ``(stdout, + stderr)``, containing the stdout and stderr outputs generated + by the java command if the ``stdout`` and ``stderr`` parameters + were set to ``subprocess.PIPE``; or None otherwise. If + ``blocking=False``, then return a ``subprocess.Popen`` object. + + :raise OSError: If the java command returns a nonzero return code. + """ + + subprocess_output_dict = { + "pipe": subprocess.PIPE, + "stdout": subprocess.STDOUT, + "devnull": subprocess.DEVNULL, + } + + stdin = subprocess_output_dict.get(stdin, stdin) + stdout = subprocess_output_dict.get(stdout, stdout) + stderr = subprocess_output_dict.get(stderr, stderr) + + if isinstance(cmd, str): + raise TypeError("cmd should be a list of strings") + + # Make sure we know where a java binary is. + if _java_bin is None: + config_java() + + # Set up the classpath. + if isinstance(classpath, str): + classpaths = [classpath] + else: + classpaths = list(classpath) + classpath = os.path.pathsep.join(classpaths) + + # Construct the full command string. + cmd = list(cmd) + cmd = ["-cp", classpath] + cmd + cmd = [_java_bin] + _java_options + cmd + + # Call java via a subprocess + p = subprocess.Popen(cmd, stdin=stdin, stdout=stdout, stderr=stderr) + if not blocking: + return p + (stdout, stderr) = p.communicate() + + # Check the return code. + if p.returncode != 0: + print(_decode_stdoutdata(stderr)) + raise OSError("Java command failed : " + str(cmd)) + + return (stdout, stderr) + + +###################################################################### +# Parsing +###################################################################### + + +class ReadError(ValueError): + """ + Exception raised by read_* functions when they fail. + :param position: The index in the input string where an error occurred. + :param expected: What was expected when an error occurred. + """ + + def __init__(self, expected, position): + ValueError.__init__(self, expected, position) + self.expected = expected + self.position = position + + def __str__(self): + return f"Expected {self.expected} at {self.position}" + + +_STRING_START_RE = re.compile(r"[uU]?[rR]?(\"\"\"|\'\'\'|\"|\')") + + +def read_str(s, start_position): + """ + If a Python string literal begins at the specified position in the + given string, then return a tuple ``(val, end_position)`` + containing the value of the string literal and the position where + it ends. Otherwise, raise a ``ReadError``. + + :param s: A string that will be checked to see if within which a + Python string literal exists. + :type s: str + + :param start_position: The specified beginning position of the string ``s`` + to begin regex matching. + :type start_position: int + + :return: A tuple containing the matched string literal evaluated as a + string and the end position of the string literal. + :rtype: tuple(str, int) + + :raise ReadError: If the ``_STRING_START_RE`` regex doesn't return a + match in ``s`` at ``start_position``, i.e., open quote. If the + ``_STRING_END_RE`` regex doesn't return a match in ``s`` at the + end of the first match, i.e., close quote. + :raise ValueError: If an invalid string (i.e., contains an invalid + escape sequence) is passed into the ``eval``. + + :Example: + + >>> from nltk.internals import read_str + >>> read_str('"Hello", World!', 0) + ('Hello', 7) + + """ + # Read the open quote, and any modifiers. + m = _STRING_START_RE.match(s, start_position) + if not m: + raise ReadError("open quote", start_position) + quotemark = m.group(1) + + # Find the close quote. + _STRING_END_RE = re.compile(r"\\|%s" % quotemark) + position = m.end() + while True: + match = _STRING_END_RE.search(s, position) + if not match: + raise ReadError("close quote", position) + if match.group(0) == "\\": + position = match.end() + 1 + else: + break + + # Process it, using eval. Strings with invalid escape sequences + # might raise ValueError. + try: + return eval(s[start_position : match.end()]), match.end() + except ValueError as e: + raise ReadError("valid escape sequence", start_position) from e + + +_READ_INT_RE = re.compile(r"-?\d+") + + +def read_int(s, start_position): + """ + If an integer begins at the specified position in the given + string, then return a tuple ``(val, end_position)`` containing the + value of the integer and the position where it ends. Otherwise, + raise a ``ReadError``. + + :param s: A string that will be checked to see if within which a + Python integer exists. + :type s: str + + :param start_position: The specified beginning position of the string ``s`` + to begin regex matching. + :type start_position: int + + :return: A tuple containing the matched integer casted to an int, + and the end position of the int in ``s``. + :rtype: tuple(int, int) + + :raise ReadError: If the ``_READ_INT_RE`` regex doesn't return a + match in ``s`` at ``start_position``. + + :Example: + + >>> from nltk.internals import read_int + >>> read_int('42 is the answer', 0) + (42, 2) + + """ + m = _READ_INT_RE.match(s, start_position) + if not m: + raise ReadError("integer", start_position) + return int(m.group()), m.end() + + +_READ_NUMBER_VALUE = re.compile(r"-?(\d*)([.]?\d*)?") + + +def read_number(s, start_position): + """ + If an integer or float begins at the specified position in the + given string, then return a tuple ``(val, end_position)`` + containing the value of the number and the position where it ends. + Otherwise, raise a ``ReadError``. + + :param s: A string that will be checked to see if within which a + Python number exists. + :type s: str + + :param start_position: The specified beginning position of the string ``s`` + to begin regex matching. + :type start_position: int + + :return: A tuple containing the matched number casted to a ``float``, + and the end position of the number in ``s``. + :rtype: tuple(float, int) + + :raise ReadError: If the ``_READ_NUMBER_VALUE`` regex doesn't return a + match in ``s`` at ``start_position``. + + :Example: + + >>> from nltk.internals import read_number + >>> read_number('Pi is 3.14159', 6) + (3.14159, 13) + + """ + m = _READ_NUMBER_VALUE.match(s, start_position) + if not m or not (m.group(1) or m.group(2)): + raise ReadError("number", start_position) + if m.group(2): + return float(m.group()), m.end() + else: + return int(m.group()), m.end() + + +###################################################################### +# Check if a method has been overridden +###################################################################### + + +def overridden(method): + """ + :return: True if ``method`` overrides some method with the same + name in a base class. This is typically used when defining + abstract base classes or interfaces, to allow subclasses to define + either of two related methods: + + >>> class EaterI: + ... '''Subclass must define eat() or batch_eat().''' + ... def eat(self, food): + ... if overridden(self.batch_eat): + ... return self.batch_eat([food])[0] + ... else: + ... raise NotImplementedError() + ... def batch_eat(self, foods): + ... return [self.eat(food) for food in foods] + + :type method: instance method + """ + if isinstance(method, types.MethodType) and method.__self__.__class__ is not None: + name = method.__name__ + funcs = [ + cls.__dict__[name] + for cls in _mro(method.__self__.__class__) + if name in cls.__dict__ + ] + return len(funcs) > 1 + else: + raise TypeError("Expected an instance method.") + + +def _mro(cls): + """ + Return the method resolution order for ``cls`` -- i.e., a list + containing ``cls`` and all its base classes, in the order in which + they would be checked by ``getattr``. For new-style classes, this + is just cls.__mro__. For classic classes, this can be obtained by + a depth-first left-to-right traversal of ``__bases__``. + """ + if isinstance(cls, type): + return cls.__mro__ + else: + mro = [cls] + for base in cls.__bases__: + mro.extend(_mro(base)) + return mro + + +###################################################################### +# Deprecation decorator & base class +###################################################################### +# [xx] dedent msg first if it comes from a docstring. + + +def _add_epytext_field(obj, field, message): + """Add an epytext @field to a given object's docstring.""" + indent = "" + # If we already have a docstring, then add a blank line to separate + # it from the new field, and check its indentation. + if obj.__doc__: + obj.__doc__ = obj.__doc__.rstrip() + "\n\n" + indents = re.findall(r"(?<=\n)[ ]+(?!\s)", obj.__doc__.expandtabs()) + if indents: + indent = min(indents) + # If we don't have a docstring, add an empty one. + else: + obj.__doc__ = "" + + obj.__doc__ += textwrap.fill( + f"@{field}: {message}", + initial_indent=indent, + subsequent_indent=indent + " ", + ) + + +def deprecated(message): + """ + A decorator used to mark functions as deprecated. This will cause + a warning to be printed the when the function is used. Usage: + + >>> from nltk.internals import deprecated + >>> @deprecated('Use foo() instead') + ... def bar(x): + ... print(x/10) + + """ + + def decorator(func): + msg = f"Function {func.__name__}() has been deprecated. {message}" + msg = "\n" + textwrap.fill(msg, initial_indent=" ", subsequent_indent=" ") + + def newFunc(*args, **kwargs): + warnings.warn(msg, category=DeprecationWarning, stacklevel=2) + return func(*args, **kwargs) + + # Copy the old function's name, docstring, & dict + newFunc.__dict__.update(func.__dict__) + newFunc.__name__ = func.__name__ + newFunc.__doc__ = func.__doc__ + newFunc.__deprecated__ = True + # Add a @deprecated field to the docstring. + _add_epytext_field(newFunc, "deprecated", message) + return newFunc + + return decorator + + +class Deprecated: + """ + A base class used to mark deprecated classes. A typical usage is to + alert users that the name of a class has changed: + + >>> from nltk.internals import Deprecated + >>> class NewClassName: + ... pass # All logic goes here. + ... + >>> class OldClassName(Deprecated, NewClassName): + ... "Use NewClassName instead." + + The docstring of the deprecated class will be used in the + deprecation warning message. + """ + + def __new__(cls, *args, **kwargs): + # Figure out which class is the deprecated one. + dep_cls = None + for base in _mro(cls): + if Deprecated in base.__bases__: + dep_cls = base + break + assert dep_cls, "Unable to determine which base is deprecated." + + # Construct an appropriate warning. + doc = dep_cls.__doc__ or "".strip() + # If there's a @deprecated field, strip off the field marker. + doc = re.sub(r"\A\s*@deprecated:", r"", doc) + # Strip off any indentation. + doc = re.sub(r"(?m)^\s*", "", doc) + # Construct a 'name' string. + name = "Class %s" % dep_cls.__name__ + if cls != dep_cls: + name += " (base class for %s)" % cls.__name__ + # Put it all together. + msg = f"{name} has been deprecated. {doc}" + # Wrap it. + msg = "\n" + textwrap.fill(msg, initial_indent=" ", subsequent_indent=" ") + warnings.warn(msg, category=DeprecationWarning, stacklevel=2) + # Do the actual work of __new__. + return object.__new__(cls) + + +########################################################################## +# COUNTER, FOR UNIQUE NAMING +########################################################################## + + +class Counter: + """ + A counter that auto-increments each time its value is read. + """ + + def __init__(self, initial_value=0): + self._value = initial_value + + def get(self): + self._value += 1 + return self._value + + +########################################################################## +# Search for files/binaries +########################################################################## + + +def find_file_iter( + filename, + env_vars=(), + searchpath=(), + file_names=None, + url=None, + verbose=False, + finding_dir=False, +): + """ + Search for a file to be used by nltk. + + :param filename: The name or path of the file. + :param env_vars: A list of environment variable names to check. + :param file_names: A list of alternative file names to check. + :param searchpath: List of directories to search. + :param url: URL presented to user for download help. + :param verbose: Whether or not to print path when a file is found. + """ + file_names = [filename] + (file_names or []) + assert isinstance(filename, str) + assert not isinstance(file_names, str) + assert not isinstance(searchpath, str) + if isinstance(env_vars, str): + env_vars = env_vars.split() + yielded = False + + # File exists, no magic + for alternative in file_names: + path_to_file = os.path.join(filename, alternative) + if os.path.isfile(path_to_file): + if verbose: + print(f"[Found {filename}: {path_to_file}]") + yielded = True + yield path_to_file + # Check the bare alternatives + if os.path.isfile(alternative): + if verbose: + print(f"[Found {filename}: {alternative}]") + yielded = True + yield alternative + # Check if the alternative is inside a 'file' directory + path_to_file = os.path.join(filename, "file", alternative) + if os.path.isfile(path_to_file): + if verbose: + print(f"[Found {filename}: {path_to_file}]") + yielded = True + yield path_to_file + + # Check environment variables + for env_var in env_vars: + if env_var in os.environ: + if finding_dir: # This is to file a directory instead of file + yielded = True + yield os.environ[env_var] + + for env_dir in os.environ[env_var].split(os.pathsep): + # Check if the environment variable contains a direct path to the bin + if os.path.isfile(env_dir): + if verbose: + print(f"[Found {filename}: {env_dir}]") + yielded = True + yield env_dir + # Check if the possible bin names exist inside the environment variable directories + for alternative in file_names: + path_to_file = os.path.join(env_dir, alternative) + if os.path.isfile(path_to_file): + if verbose: + print(f"[Found {filename}: {path_to_file}]") + yielded = True + yield path_to_file + # Check if the alternative is inside a 'file' directory + # path_to_file = os.path.join(env_dir, 'file', alternative) + + # Check if the alternative is inside a 'bin' directory + path_to_file = os.path.join(env_dir, "bin", alternative) + + if os.path.isfile(path_to_file): + if verbose: + print(f"[Found {filename}: {path_to_file}]") + yielded = True + yield path_to_file + + # Check the path list. + for directory in searchpath: + for alternative in file_names: + path_to_file = os.path.join(directory, alternative) + if os.path.isfile(path_to_file): + yielded = True + yield path_to_file + + # If we're on a POSIX system, then try using the 'which' command + # to find the file. + if os.name == "posix": + for alternative in file_names: + try: + p = subprocess.Popen( + ["which", alternative], + stdout=subprocess.PIPE, + stderr=subprocess.PIPE, + ) + stdout, stderr = p.communicate() + path = _decode_stdoutdata(stdout).strip() + if path.endswith(alternative) and os.path.exists(path): + if verbose: + print(f"[Found {filename}: {path}]") + yielded = True + yield path + except (KeyboardInterrupt, SystemExit, OSError): + raise + finally: + pass + + if not yielded: + msg = ( + "NLTK was unable to find the %s file!" + "\nUse software specific " + "configuration parameters" % filename + ) + if env_vars: + msg += " or set the %s environment variable" % env_vars[0] + msg += "." + if searchpath: + msg += "\n\n Searched in:" + msg += "".join("\n - %s" % d for d in searchpath) + if url: + msg += f"\n\n For more information on {filename}, see:\n <{url}>" + div = "=" * 75 + raise LookupError(f"\n\n{div}\n{msg}\n{div}") + + +def find_file( + filename, env_vars=(), searchpath=(), file_names=None, url=None, verbose=False +): + return next( + find_file_iter(filename, env_vars, searchpath, file_names, url, verbose) + ) + + +def find_dir( + filename, env_vars=(), searchpath=(), file_names=None, url=None, verbose=False +): + return next( + find_file_iter( + filename, env_vars, searchpath, file_names, url, verbose, finding_dir=True + ) + ) + + +def find_binary_iter( + name, + path_to_bin=None, + env_vars=(), + searchpath=(), + binary_names=None, + url=None, + verbose=False, +): + """ + Search for a file to be used by nltk. + + :param name: The name or path of the file. + :param path_to_bin: The user-supplied binary location (deprecated) + :param env_vars: A list of environment variable names to check. + :param file_names: A list of alternative file names to check. + :param searchpath: List of directories to search. + :param url: URL presented to user for download help. + :param verbose: Whether or not to print path when a file is found. + """ + yield from find_file_iter( + path_to_bin or name, env_vars, searchpath, binary_names, url, verbose + ) + + +def find_binary( + name, + path_to_bin=None, + env_vars=(), + searchpath=(), + binary_names=None, + url=None, + verbose=False, +): + return next( + find_binary_iter( + name, path_to_bin, env_vars, searchpath, binary_names, url, verbose + ) + ) + + +def find_jar_iter( + name_pattern, + path_to_jar=None, + env_vars=(), + searchpath=(), + url=None, + verbose=False, + is_regex=False, +): + """ + Search for a jar that is used by nltk. + + :param name_pattern: The name of the jar file + :param path_to_jar: The user-supplied jar location, or None. + :param env_vars: A list of environment variable names to check + in addition to the CLASSPATH variable which is + checked by default. + :param searchpath: List of directories to search. + :param is_regex: Whether name is a regular expression. + """ + + assert isinstance(name_pattern, str) + assert not isinstance(searchpath, str) + if isinstance(env_vars, str): + env_vars = env_vars.split() + yielded = False + + # Make sure we check the CLASSPATH first + env_vars = ["CLASSPATH"] + list(env_vars) + + # If an explicit location was given, then check it, and yield it if + # it's present; otherwise, complain. + if path_to_jar is not None: + if os.path.isfile(path_to_jar): + yielded = True + yield path_to_jar + else: + raise LookupError( + f"Could not find {name_pattern} jar file at {path_to_jar}" + ) + + # Check environment variables + for env_var in env_vars: + if env_var in os.environ: + if env_var == "CLASSPATH": + classpath = os.environ["CLASSPATH"] + for cp in classpath.split(os.path.pathsep): + cp = os.path.expanduser(cp) + if os.path.isfile(cp): + filename = os.path.basename(cp) + if ( + is_regex + and re.match(name_pattern, filename) + or (not is_regex and filename == name_pattern) + ): + if verbose: + print(f"[Found {name_pattern}: {cp}]") + yielded = True + yield cp + # The case where user put directory containing the jar file in the classpath + if os.path.isdir(cp): + if not is_regex: + if os.path.isfile(os.path.join(cp, name_pattern)): + if verbose: + print(f"[Found {name_pattern}: {cp}]") + yielded = True + yield os.path.join(cp, name_pattern) + else: + # Look for file using regular expression + for file_name in os.listdir(cp): + if re.match(name_pattern, file_name): + if verbose: + print( + "[Found %s: %s]" + % ( + name_pattern, + os.path.join(cp, file_name), + ) + ) + yielded = True + yield os.path.join(cp, file_name) + + else: + jar_env = os.path.expanduser(os.environ[env_var]) + jar_iter = ( + ( + os.path.join(jar_env, path_to_jar) + for path_to_jar in os.listdir(jar_env) + ) + if os.path.isdir(jar_env) + else (jar_env,) + ) + for path_to_jar in jar_iter: + if os.path.isfile(path_to_jar): + filename = os.path.basename(path_to_jar) + if ( + is_regex + and re.match(name_pattern, filename) + or (not is_regex and filename == name_pattern) + ): + if verbose: + print(f"[Found {name_pattern}: {path_to_jar}]") + yielded = True + yield path_to_jar + + # Check the path list. + for directory in searchpath: + if is_regex: + for filename in os.listdir(directory): + path_to_jar = os.path.join(directory, filename) + if os.path.isfile(path_to_jar): + if re.match(name_pattern, filename): + if verbose: + print(f"[Found {filename}: {path_to_jar}]") + yielded = True + yield path_to_jar + else: + path_to_jar = os.path.join(directory, name_pattern) + if os.path.isfile(path_to_jar): + if verbose: + print(f"[Found {name_pattern}: {path_to_jar}]") + yielded = True + yield path_to_jar + + if not yielded: + # If nothing was found, raise an error + msg = "NLTK was unable to find %s!" % name_pattern + if env_vars: + msg += " Set the %s environment variable" % env_vars[0] + msg = textwrap.fill(msg + ".", initial_indent=" ", subsequent_indent=" ") + if searchpath: + msg += "\n\n Searched in:" + msg += "".join("\n - %s" % d for d in searchpath) + if url: + msg += "\n\n For more information, on {}, see:\n <{}>".format( + name_pattern, + url, + ) + div = "=" * 75 + raise LookupError(f"\n\n{div}\n{msg}\n{div}") + + +def find_jar( + name_pattern, + path_to_jar=None, + env_vars=(), + searchpath=(), + url=None, + verbose=False, + is_regex=False, +): + return next( + find_jar_iter( + name_pattern, path_to_jar, env_vars, searchpath, url, verbose, is_regex + ) + ) + + +def find_jars_within_path(path_to_jars): + return [ + os.path.join(root, filename) + for root, dirnames, filenames in os.walk(path_to_jars) + for filename in fnmatch.filter(filenames, "*.jar") + ] + + +def _decode_stdoutdata(stdoutdata): + """Convert data read from stdout/stderr to unicode""" + if not isinstance(stdoutdata, bytes): + return stdoutdata + + encoding = getattr(sys.__stdout__, "encoding", locale.getpreferredencoding()) + if encoding is None: + return stdoutdata.decode() + return stdoutdata.decode(encoding) + + +########################################################################## +# Import Stdlib Module +########################################################################## + + +def import_from_stdlib(module): + """ + When python is run from within the nltk/ directory tree, the + current directory is included at the beginning of the search path. + Unfortunately, that means that modules within nltk can sometimes + shadow standard library modules. As an example, the stdlib + 'inspect' module will attempt to import the stdlib 'tokenize' + module, but will instead end up importing NLTK's 'tokenize' module + instead (causing the import to fail). + """ + old_path = sys.path + sys.path = [d for d in sys.path if d not in ("", ".")] + m = __import__(module) + sys.path = old_path + return m + + +########################################################################## +# Wrapper for ElementTree Elements +########################################################################## + + +class ElementWrapper: + """ + A wrapper around ElementTree Element objects whose main purpose is + to provide nicer __repr__ and __str__ methods. In addition, any + of the wrapped Element's methods that return other Element objects + are overridden to wrap those values before returning them. + + This makes Elements more convenient to work with in + interactive sessions and doctests, at the expense of some + efficiency. + """ + + # Prevent double-wrapping: + def __new__(cls, etree): + """ + Create and return a wrapper around a given Element object. + If ``etree`` is an ``ElementWrapper``, then ``etree`` is + returned as-is. + """ + if isinstance(etree, ElementWrapper): + return etree + else: + return object.__new__(ElementWrapper) + + def __init__(self, etree): + r""" + Initialize a new Element wrapper for ``etree``. + + If ``etree`` is a string, then it will be converted to an + Element object using ``ElementTree.fromstring()`` first: + + >>> ElementWrapper("") + \n"> + + """ + if isinstance(etree, str): + etree = ElementTree.fromstring(etree) + self.__dict__["_etree"] = etree + + def unwrap(self): + """ + Return the Element object wrapped by this wrapper. + """ + return self._etree + + ##//////////////////////////////////////////////////////////// + # { String Representation + ##//////////////////////////////////////////////////////////// + + def __repr__(self): + s = ElementTree.tostring(self._etree, encoding="utf8").decode("utf8") + if len(s) > 60: + e = s.rfind("<") + if (len(s) - e) > 30: + e = -20 + s = f"{s[:30]}...{s[e:]}" + return "" % s + + def __str__(self): + """ + :return: the result of applying ``ElementTree.tostring()`` to + the wrapped Element object. + """ + return ( + ElementTree.tostring(self._etree, encoding="utf8").decode("utf8").rstrip() + ) + + ##//////////////////////////////////////////////////////////// + # { Element interface Delegation (pass-through) + ##//////////////////////////////////////////////////////////// + + def __getattr__(self, attrib): + return getattr(self._etree, attrib) + + def __setattr__(self, attr, value): + return setattr(self._etree, attr, value) + + def __delattr__(self, attr): + return delattr(self._etree, attr) + + def __setitem__(self, index, element): + self._etree[index] = element + + def __delitem__(self, index): + del self._etree[index] + + def __setslice__(self, start, stop, elements): + self._etree[start:stop] = elements + + def __delslice__(self, start, stop): + del self._etree[start:stop] + + def __len__(self): + return len(self._etree) + + ##//////////////////////////////////////////////////////////// + # { Element interface Delegation (wrap result) + ##//////////////////////////////////////////////////////////// + + def __getitem__(self, index): + return ElementWrapper(self._etree[index]) + + def __getslice__(self, start, stop): + return [ElementWrapper(elt) for elt in self._etree[start:stop]] + + def getchildren(self): + return [ElementWrapper(elt) for elt in self._etree] + + def getiterator(self, tag=None): + return (ElementWrapper(elt) for elt in self._etree.getiterator(tag)) + + def makeelement(self, tag, attrib): + return ElementWrapper(self._etree.makeelement(tag, attrib)) + + def find(self, path): + elt = self._etree.find(path) + if elt is None: + return elt + else: + return ElementWrapper(elt) + + def findall(self, path): + return [ElementWrapper(elt) for elt in self._etree.findall(path)] + + +###################################################################### +# Helper for Handling Slicing +###################################################################### + + +def slice_bounds(sequence, slice_obj, allow_step=False): + """ + Given a slice, return the corresponding (start, stop) bounds, + taking into account None indices and negative indices. The + following guarantees are made for the returned start and stop values: + + - 0 <= start <= len(sequence) + - 0 <= stop <= len(sequence) + - start <= stop + + :raise ValueError: If ``slice_obj.step`` is not None. + :param allow_step: If true, then the slice object may have a + non-None step. If it does, then return a tuple + (start, stop, step). + """ + start, stop = (slice_obj.start, slice_obj.stop) + + # If allow_step is true, then include the step in our return + # value tuple. + if allow_step: + step = slice_obj.step + if step is None: + step = 1 + # Use a recursive call without allow_step to find the slice + # bounds. If step is negative, then the roles of start and + # stop (in terms of default values, etc), are swapped. + if step < 0: + start, stop = slice_bounds(sequence, slice(stop, start)) + else: + start, stop = slice_bounds(sequence, slice(start, stop)) + return start, stop, step + + # Otherwise, make sure that no non-default step value is used. + elif slice_obj.step not in (None, 1): + raise ValueError( + "slices with steps are not supported by %s" % sequence.__class__.__name__ + ) + + # Supply default offsets. + if start is None: + start = 0 + if stop is None: + stop = len(sequence) + + # Handle negative indices. + if start < 0: + start = max(0, len(sequence) + start) + if stop < 0: + stop = max(0, len(sequence) + stop) + + # Make sure stop doesn't go past the end of the list. Note that + # we avoid calculating len(sequence) if possible, because for lazy + # sequences, calculating the length of a sequence can be expensive. + if stop > 0: + try: + sequence[stop - 1] + except IndexError: + stop = len(sequence) + + # Make sure start isn't past stop. + start = min(start, stop) + + # That's all folks! + return start, stop + + +###################################################################### +# Permission Checking +###################################################################### + + +def is_writable(path): + # Ensure that it exists. + if not os.path.exists(path): + return False + + # If we're on a posix system, check its permissions. + if hasattr(os, "getuid"): + statdata = os.stat(path) + perm = stat.S_IMODE(statdata.st_mode) + # is it world-writable? + if perm & 0o002: + return True + # do we own it? + elif statdata.st_uid == os.getuid() and (perm & 0o200): + return True + # are we in a group that can write to it? + elif (statdata.st_gid in [os.getgid()] + os.getgroups()) and (perm & 0o020): + return True + # otherwise, we can't write to it. + else: + return False + + # Otherwise, we'll assume it's writable. + # [xx] should we do other checks on other platforms? + return True + + +###################################################################### +# NLTK Error reporting +###################################################################### + + +def raise_unorderable_types(ordering, a, b): + raise TypeError( + "unorderable types: %s() %s %s()" + % (type(a).__name__, ordering, type(b).__name__) + ) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/jsontags.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/jsontags.py new file mode 100644 index 0000000000000000000000000000000000000000..44716e3cb3a94205988abee4e0b8b40b5e437416 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/jsontags.py @@ -0,0 +1,76 @@ +# Natural Language Toolkit: JSON Encoder/Decoder Helpers +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Steven Xu +# +# URL: +# For license information, see LICENSE.TXT + +""" +Register JSON tags, so the nltk data loader knows what module and class to look for. + +NLTK uses simple '!' tags to mark the types of objects, but the fully-qualified +"tag:nltk.org,2011:" prefix is also accepted in case anyone ends up +using it. +""" + +import json + +json_tags = {} + +TAG_PREFIX = "!" + + +def register_tag(cls): + """ + Decorates a class to register it's json tag. + """ + json_tags[TAG_PREFIX + getattr(cls, "json_tag")] = cls + return cls + + +class JSONTaggedEncoder(json.JSONEncoder): + def default(self, obj): + obj_tag = getattr(obj, "json_tag", None) + if obj_tag is None: + return super().default(obj) + obj_tag = TAG_PREFIX + obj_tag + obj = obj.encode_json_obj() + return {obj_tag: obj} + + +class JSONTaggedDecoder(json.JSONDecoder): + #: Maximum nesting depth for decoded JSON objects. + #: Prevents denial of service from deeply nested payloads. + MAX_DECODE_DEPTH = 200 + + def decode(self, s): + try: + return self.decode_obj(super().decode(s)) + except RecursionError: + raise ValueError("JSON nesting too deep to decode safely") + + @classmethod + def decode_obj(cls, obj, _depth=0): + if _depth > cls.MAX_DECODE_DEPTH: + raise ValueError( + f"JSON nesting depth exceeds maximum allowed ({cls.MAX_DECODE_DEPTH})" + ) + # Decode nested objects first. + if isinstance(obj, dict): + obj = {key: cls.decode_obj(val, _depth + 1) for (key, val) in obj.items()} + elif isinstance(obj, list): + obj = list(cls.decode_obj(val, _depth + 1) for val in obj) + # Check if we have a tagged object. + if not isinstance(obj, dict) or len(obj) != 1: + return obj + obj_tag = next(iter(obj.keys())) + if not obj_tag.startswith("!"): + return obj + if obj_tag not in json_tags: + raise ValueError("Unknown tag", obj_tag) + obj_cls = json_tags[obj_tag] + return obj_cls.decode_json_obj(obj[obj_tag]) + + +__all__ = ["register_tag", "json_tags", "JSONTaggedEncoder", "JSONTaggedDecoder"] diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/langnames.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/langnames.py new file mode 100644 index 0000000000000000000000000000000000000000..3db2093ae433c81a950ade5e7d837d649c4208dc --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/langnames.py @@ -0,0 +1,730 @@ +# Natural Language Toolkit: Language Codes +# +# Copyright (C) 2022-2023 NLTK Project +# Author: Eric Kafe +# URL: +# For license information, see LICENSE.TXT +# +# iso639-3 language codes (C) https://iso639-3.sil.org/ + +""" +Translate between language names and language codes. + +The iso639-3 language codes were downloaded from the registration authority at +https://iso639-3.sil.org/ + +The iso639-3 codeset is evolving, so retired language codes are kept in the +"iso639retired" dictionary, which is used as fallback by the wrapper functions +"langname" and "langcode", in order to support the lookup of retired codes. + +The "langcode" function returns the current iso639-3 code if there is one, +and falls back to the retired code otherwise. As specified by BCP-47, +it returns the shortest (2-letter) code by default, but 3-letter codes +are also available: + + >>> import nltk.langnames as lgn + >>> lgn.langname('fri') #'fri' is a retired code + 'Western Frisian' + + The current code is different from the retired one: + >>> lgn.langcode('Western Frisian') + 'fy' + + >>> lgn.langcode('Western Frisian', typ = 3) + 'fry' + +""" + +import re +from warnings import warn + +from nltk.corpus import bcp47 + +codepattern = re.compile("[a-z][a-z][a-z]?") + + +def langname(tag, typ="full"): + """ + Convert a composite BCP-47 tag to a language name + + >>> from nltk.langnames import langname + >>> langname('ca-Latn-ES-valencia') + 'Catalan: Latin: Spain: Valencian' + + >>> langname('ca-Latn-ES-valencia', typ="short") + 'Catalan' + """ + tags = tag.split("-") + code = tags[0].lower() + if codepattern.fullmatch(code): + if code in iso639retired: # retired codes + return iso639retired[code] + elif code in iso639short: # 3-letter codes + code2 = iso639short[code] # convert to 2-letter code + warn(f"Shortening {code!r} to {code2!r}", stacklevel=2) + tag = "-".join([code2] + tags[1:]) + name = bcp47.name(tag) # parse according to BCP-47 + if typ == "full": + return name # include all subtags + elif name: + return name.split(":")[0] # only the language subtag + else: + warn(f"Could not find code in {code!r}", stacklevel=2) + + +def langcode(name, typ=2): + """ + Convert language name to iso639-3 language code. Returns the short 2-letter + code by default, if one is available, and the 3-letter code otherwise: + + >>> from nltk.langnames import langcode + >>> langcode('Modern Greek (1453-)') + 'el' + + Specify 'typ=3' to get the 3-letter code: + + >>> langcode('Modern Greek (1453-)', typ=3) + 'ell' + """ + if name in bcp47.langcode: + code = bcp47.langcode[name] + if typ == 3 and code in iso639long: + code = iso639long[code] # convert to 3-letter code + return code + elif name in iso639code_retired: + return iso639code_retired[name] + else: + warn(f"Could not find language in {name!r}", stacklevel=2) + + +# ======================================================================= +# Translate betwwen Wikidata Q-codes and BCP-47 codes or names +# ....................................................................... + + +def tag2q(tag): + """ + Convert BCP-47 tag to Wikidata Q-code + + >>> tag2q('nds-u-sd-demv') + 'Q4289225' + """ + return bcp47.wiki_q[tag] + + +def q2tag(qcode): + """ + Convert Wikidata Q-code to BCP-47 tag + + >>> q2tag('Q4289225') + 'nds-u-sd-demv' + """ + return wiki_bcp47[qcode] + + +def q2name(qcode, typ="full"): + """ + Convert Wikidata Q-code to BCP-47 (full or short) language name + + >>> q2name('Q4289225') + 'Low German: Mecklenburg-Vorpommern' + + >>> q2name('Q4289225', "short") + 'Low German' + """ + return langname(q2tag(qcode), typ) + + +def lang2q(name): + """ + Convert simple language name to Wikidata Q-code + + >>> lang2q('Low German') + 'Q25433' + """ + return tag2q(langcode(name)) + + +# ====================================================================== +# Data dictionaries +# ...................................................................... + + +def inverse_dict(dic): + """Return inverse mapping, but only if it is bijective""" + if len(dic.keys()) == len(set(dic.values())): + return {val: key for (key, val) in dic.items()} + else: + warn("This dictionary has no bijective inverse mapping.") + + +bcp47.load_wiki_q() # Wikidata conversion table needs to be loaded explicitly +wiki_bcp47 = inverse_dict(bcp47.wiki_q) + +iso639short = { + "aar": "aa", + "abk": "ab", + "afr": "af", + "aka": "ak", + "amh": "am", + "ara": "ar", + "arg": "an", + "asm": "as", + "ava": "av", + "ave": "ae", + "aym": "ay", + "aze": "az", + "bak": "ba", + "bam": "bm", + "bel": "be", + "ben": "bn", + "bis": "bi", + "bod": "bo", + "bos": "bs", + "bre": "br", + "bul": "bg", + "cat": "ca", + "ces": "cs", + "cha": "ch", + "che": "ce", + "chu": "cu", + "chv": "cv", + "cor": "kw", + "cos": "co", + "cre": "cr", + "cym": "cy", + "dan": "da", + "deu": "de", + "div": "dv", + "dzo": "dz", + "ell": "el", + "eng": "en", + "epo": "eo", + "est": "et", + "eus": "eu", + "ewe": "ee", + "fao": "fo", + "fas": "fa", + "fij": "fj", + "fin": "fi", + "fra": "fr", + "fry": "fy", + "ful": "ff", + "gla": "gd", + "gle": "ga", + "glg": "gl", + "glv": "gv", + "grn": "gn", + "guj": "gu", + "hat": "ht", + "hau": "ha", + "hbs": "sh", + "heb": "he", + "her": "hz", + "hin": "hi", + "hmo": "ho", + "hrv": "hr", + "hun": "hu", + "hye": "hy", + "ibo": "ig", + "ido": "io", + "iii": "ii", + "iku": "iu", + "ile": "ie", + "ina": "ia", + "ind": "id", + "ipk": "ik", + "isl": "is", + "ita": "it", + "jav": "jv", + "jpn": "ja", + "kal": "kl", + "kan": "kn", + "kas": "ks", + "kat": "ka", + "kau": "kr", + "kaz": "kk", + "khm": "km", + "kik": "ki", + "kin": "rw", + "kir": "ky", + "kom": "kv", + "kon": "kg", + "kor": "ko", + "kua": "kj", + "kur": "ku", + "lao": "lo", + "lat": "la", + "lav": "lv", + "lim": "li", + "lin": "ln", + "lit": "lt", + "ltz": "lb", + "lub": "lu", + "lug": "lg", + "mah": "mh", + "mal": "ml", + "mar": "mr", + "mkd": "mk", + "mlg": "mg", + "mlt": "mt", + "mon": "mn", + "mri": "mi", + "msa": "ms", + "mya": "my", + "nau": "na", + "nav": "nv", + "nbl": "nr", + "nde": "nd", + "ndo": "ng", + "nep": "ne", + "nld": "nl", + "nno": "nn", + "nob": "nb", + "nor": "no", + "nya": "ny", + "oci": "oc", + "oji": "oj", + "ori": "or", + "orm": "om", + "oss": "os", + "pan": "pa", + "pli": "pi", + "pol": "pl", + "por": "pt", + "pus": "ps", + "que": "qu", + "roh": "rm", + "ron": "ro", + "run": "rn", + "rus": "ru", + "sag": "sg", + "san": "sa", + "sin": "si", + "slk": "sk", + "slv": "sl", + "sme": "se", + "smo": "sm", + "sna": "sn", + "snd": "sd", + "som": "so", + "sot": "st", + "spa": "es", + "sqi": "sq", + "srd": "sc", + "srp": "sr", + "ssw": "ss", + "sun": "su", + "swa": "sw", + "swe": "sv", + "tah": "ty", + "tam": "ta", + "tat": "tt", + "tel": "te", + "tgk": "tg", + "tgl": "tl", + "tha": "th", + "tir": "ti", + "ton": "to", + "tsn": "tn", + "tso": "ts", + "tuk": "tk", + "tur": "tr", + "twi": "tw", + "uig": "ug", + "ukr": "uk", + "urd": "ur", + "uzb": "uz", + "ven": "ve", + "vie": "vi", + "vol": "vo", + "wln": "wa", + "wol": "wo", + "xho": "xh", + "yid": "yi", + "yor": "yo", + "zha": "za", + "zho": "zh", + "zul": "zu", +} + + +iso639retired = { + "fri": "Western Frisian", + "auv": "Auvergnat", + "gsc": "Gascon", + "lms": "Limousin", + "lnc": "Languedocien", + "prv": "Provençal", + "amd": "Amapá Creole", + "bgh": "Bogan", + "bnh": "Banawá", + "bvs": "Belgian Sign Language", + "ccy": "Southern Zhuang", + "cit": "Chittagonian", + "flm": "Falam Chin", + "jap": "Jaruára", + "kob": "Kohoroxitari", + "mob": "Moinba", + "mzf": "Aiku", + "nhj": "Tlalitzlipa Nahuatl", + "nhs": "Southeastern Puebla Nahuatl", + "occ": "Occidental", + "tmx": "Tomyang", + "tot": "Patla-Chicontla Totonac", + "xmi": "Miarrã", + "yib": "Yinglish", + "ztc": "Lachirioag Zapotec", + "atf": "Atuence", + "bqe": "Navarro-Labourdin Basque", + "bsz": "Souletin Basque", + "aex": "Amerax", + "ahe": "Ahe", + "aiz": "Aari", + "akn": "Amikoana", + "arf": "Arafundi", + "azr": "Adzera", + "bcx": "Pamona", + "bii": "Bisu", + "bke": "Bengkulu", + "blu": "Hmong Njua", + "boc": "Bakung Kenyah", + "bsd": "Sarawak Bisaya", + "bwv": "Bahau River Kenyah", + "bxt": "Buxinhua", + "byu": "Buyang", + "ccx": "Northern Zhuang", + "cru": "Carútana", + "dat": "Darang Deng", + "dyk": "Land Dayak", + "eni": "Enim", + "fiz": "Izere", + "gen": "Geman Deng", + "ggh": "Garreh-Ajuran", + "itu": "Itutang", + "kds": "Lahu Shi", + "knh": "Kayan River Kenyah", + "krg": "North Korowai", + "krq": "Krui", + "kxg": "Katingan", + "lmt": "Lematang", + "lnt": "Lintang", + "lod": "Berawan", + "mbg": "Northern Nambikuára", + "mdo": "Southwest Gbaya", + "mhv": "Arakanese", + "miv": "Mimi", + "mqd": "Madang", + "nky": "Khiamniungan Naga", + "nxj": "Nyadu", + "ogn": "Ogan", + "ork": "Orokaiva", + "paj": "Ipeka-Tapuia", + "pec": "Southern Pesisir", + "pen": "Penesak", + "plm": "Palembang", + "poj": "Lower Pokomo", + "pun": "Pubian", + "rae": "Ranau", + "rjb": "Rajbanshi", + "rws": "Rawas", + "sdd": "Semendo", + "sdi": "Sindang Kelingi", + "skl": "Selako", + "slb": "Kahumamahon Saluan", + "srj": "Serawai", + "suf": "Tarpia", + "suh": "Suba", + "suu": "Sungkai", + "szk": "Sizaki", + "tle": "Southern Marakwet", + "tnj": "Tanjong", + "ttx": "Tutong 1", + "ubm": "Upper Baram Kenyah", + "vky": "Kayu Agung", + "vmo": "Muko-Muko", + "wre": "Ware", + "xah": "Kahayan", + "xkm": "Mahakam Kenyah", + "xuf": "Kunfal", + "yio": "Dayao Yi", + "ymj": "Muji Yi", + "ypl": "Pula Yi", + "ypw": "Puwa Yi", + "ywm": "Wumeng Yi", + "yym": "Yuanjiang-Mojiang Yi", + "mly": "Malay (individual language)", + "muw": "Mundari", + "xst": "Silt'e", + "ope": "Old Persian", + "scc": "Serbian", + "scr": "Croatian", + "xsk": "Sakan", + "mol": "Moldavian", + "aay": "Aariya", + "acc": "Cubulco Achí", + "cbm": "Yepocapa Southwestern Cakchiquel", + "chs": "Chumash", + "ckc": "Northern Cakchiquel", + "ckd": "South Central Cakchiquel", + "cke": "Eastern Cakchiquel", + "ckf": "Southern Cakchiquel", + "cki": "Santa María De Jesús Cakchiquel", + "ckj": "Santo Domingo Xenacoj Cakchiquel", + "ckk": "Acatenango Southwestern Cakchiquel", + "ckw": "Western Cakchiquel", + "cnm": "Ixtatán Chuj", + "cti": "Tila Chol", + "cun": "Cunén Quiché", + "eml": "Emiliano-Romagnolo", + "eur": "Europanto", + "gmo": "Gamo-Gofa-Dawro", + "hsf": "Southeastern Huastec", + "hva": "San Luís Potosí Huastec", + "ixi": "Nebaj Ixil", + "ixj": "Chajul Ixil", + "jai": "Western Jacalteco", + "mms": "Southern Mam", + "mpf": "Tajumulco Mam", + "mtz": "Tacanec", + "mvc": "Central Mam", + "mvj": "Todos Santos Cuchumatán Mam", + "poa": "Eastern Pokomam", + "pob": "Western Pokomchí", + "pou": "Southern Pokomam", + "ppv": "Papavô", + "quj": "Joyabaj Quiché", + "qut": "West Central Quiché", + "quu": "Eastern Quiché", + "qxi": "San Andrés Quiché", + "sic": "Malinguat", + "stc": "Santa Cruz", + "tlz": "Toala'", + "tzb": "Bachajón Tzeltal", + "tzc": "Chamula Tzotzil", + "tze": "Chenalhó Tzotzil", + "tzs": "San Andrés Larrainzar Tzotzil", + "tzt": "Western Tzutujil", + "tzu": "Huixtán Tzotzil", + "tzz": "Zinacantán Tzotzil", + "vlr": "Vatrata", + "yus": "Chan Santa Cruz Maya", + "nfg": "Nyeng", + "nfk": "Shakara", + "agp": "Paranan", + "bhk": "Albay Bicolano", + "bkb": "Finallig", + "btb": "Beti (Cameroon)", + "cjr": "Chorotega", + "cmk": "Chimakum", + "drh": "Darkhat", + "drw": "Darwazi", + "gav": "Gabutamon", + "mof": "Mohegan-Montauk-Narragansett", + "mst": "Cataelano Mandaya", + "myt": "Sangab Mandaya", + "rmr": "Caló", + "sgl": "Sanglechi-Ishkashimi", + "sul": "Surigaonon", + "sum": "Sumo-Mayangna", + "tnf": "Tangshewi", + "wgw": "Wagawaga", + "ayx": "Ayi (China)", + "bjq": "Southern Betsimisaraka Malagasy", + "dha": "Dhanwar (India)", + "dkl": "Kolum So Dogon", + "mja": "Mahei", + "nbf": "Naxi", + "noo": "Nootka", + "tie": "Tingal", + "tkk": "Takpa", + "baz": "Tunen", + "bjd": "Bandjigali", + "ccq": "Chaungtha", + "cka": "Khumi Awa Chin", + "dap": "Nisi (India)", + "dwl": "Walo Kumbe Dogon", + "elp": "Elpaputih", + "gbc": "Garawa", + "gio": "Gelao", + "hrr": "Horuru", + "ibi": "Ibilo", + "jar": "Jarawa (Nigeria)", + "kdv": "Kado", + "kgh": "Upper Tanudan Kalinga", + "kpp": "Paku Karen", + "kzh": "Kenuzi-Dongola", + "lcq": "Luhu", + "mgx": "Omati", + "nln": "Durango Nahuatl", + "pbz": "Palu", + "pgy": "Pongyong", + "sca": "Sansu", + "tlw": "South Wemale", + "unp": "Worora", + "wiw": "Wirangu", + "ybd": "Yangbye", + "yen": "Yendang", + "yma": "Yamphe", + "daf": "Dan", + "djl": "Djiwarli", + "ggr": "Aghu Tharnggalu", + "ilw": "Talur", + "izi": "Izi-Ezaa-Ikwo-Mgbo", + "meg": "Mea", + "mld": "Malakhel", + "mnt": "Maykulan", + "mwd": "Mudbura", + "myq": "Forest Maninka", + "nbx": "Ngura", + "nlr": "Ngarla", + "pcr": "Panang", + "ppr": "Piru", + "tgg": "Tangga", + "wit": "Wintu", + "xia": "Xiandao", + "yiy": "Yir Yoront", + "yos": "Yos", + "emo": "Emok", + "ggm": "Gugu Mini", + "leg": "Lengua", + "lmm": "Lamam", + "mhh": "Maskoy Pidgin", + "puz": "Purum Naga", + "sap": "Sanapaná", + "yuu": "Yugh", + "aam": "Aramanik", + "adp": "Adap", + "aue": "ǂKxʼauǁʼein", + "bmy": "Bemba (Democratic Republic of Congo)", + "bxx": "Borna (Democratic Republic of Congo)", + "byy": "Buya", + "dzd": "Daza", + "gfx": "Mangetti Dune ǃXung", + "gti": "Gbati-ri", + "ime": "Imeraguen", + "kbf": "Kakauhua", + "koj": "Sara Dunjo", + "kwq": "Kwak", + "kxe": "Kakihum", + "lii": "Lingkhim", + "mwj": "Maligo", + "nnx": "Ngong", + "oun": "ǃOǃung", + "pmu": "Mirpur Panjabi", + "sgo": "Songa", + "thx": "The", + "tsf": "Southwestern Tamang", + "uok": "Uokha", + "xsj": "Subi", + "yds": "Yiddish Sign Language", + "ymt": "Mator-Taygi-Karagas", + "ynh": "Yangho", + "bgm": "Baga Mboteni", + "btl": "Bhatola", + "cbe": "Chipiajes", + "cbh": "Cagua", + "coy": "Coyaima", + "cqu": "Chilean Quechua", + "cum": "Cumeral", + "duj": "Dhuwal", + "ggn": "Eastern Gurung", + "ggo": "Southern Gondi", + "guv": "Gey", + "iap": "Iapama", + "ill": "Iranun", + "kgc": "Kasseng", + "kox": "Coxima", + "ktr": "Kota Marudu Tinagas", + "kvs": "Kunggara", + "kzj": "Coastal Kadazan", + "kzt": "Tambunan Dusun", + "nad": "Nijadali", + "nts": "Natagaimas", + "ome": "Omejes", + "pmc": "Palumata", + "pod": "Ponares", + "ppa": "Pao", + "pry": "Pray 3", + "rna": "Runa", + "svr": "Savara", + "tdu": "Tempasuk Dusun", + "thc": "Tai Hang Tong", + "tid": "Tidong", + "tmp": "Tai Mène", + "tne": "Tinoc Kallahan", + "toe": "Tomedes", + "xba": "Kamba (Brazil)", + "xbx": "Kabixí", + "xip": "Xipináwa", + "xkh": "Karahawyana", + "yri": "Yarí", + "jeg": "Jeng", + "kgd": "Kataang", + "krm": "Krim", + "prb": "Lua'", + "puk": "Pu Ko", + "rie": "Rien", + "rsi": "Rennellese Sign Language", + "skk": "Sok", + "snh": "Shinabo", + "lsg": "Lyons Sign Language", + "mwx": "Mediak", + "mwy": "Mosiro", + "ncp": "Ndaktup", + "ais": "Nataoran Amis", + "asd": "Asas", + "dit": "Dirari", + "dud": "Hun-Saare", + "lba": "Lui", + "llo": "Khlor", + "myd": "Maramba", + "myi": "Mina (India)", + "nns": "Ningye", + "aoh": "Arma", + "ayy": "Tayabas Ayta", + "bbz": "Babalia Creole Arabic", + "bpb": "Barbacoas", + "cca": "Cauca", + "cdg": "Chamari", + "dgu": "Degaru", + "drr": "Dororo", + "ekc": "Eastern Karnic", + "gli": "Guliguli", + "kjf": "Khalaj", + "kxl": "Nepali Kurux", + "kxu": "Kui (India)", + "lmz": "Lumbee", + "nxu": "Narau", + "plp": "Palpa", + "sdm": "Semandang", + "tbb": "Tapeba", + "xrq": "Karranga", + "xtz": "Tasmanian", + "zir": "Ziriya", + "thw": "Thudam", + "bic": "Bikaru", + "bij": "Vaghat-Ya-Bijim-Legeri", + "blg": "Balau", + "gji": "Geji", + "mvm": "Muya", + "ngo": "Ngoni", + "pat": "Papitalai", + "vki": "Ija-Zuba", + "wra": "Warapu", + "ajt": "Judeo-Tunisian Arabic", + "cug": "Chungmboko", + "lak": "Laka (Nigeria)", + "lno": "Lango (South Sudan)", + "pii": "Pini", + "smd": "Sama", + "snb": "Sebuyau", + "uun": "Kulon-Pazeh", + "wrd": "Warduji", + "wya": "Wyandot", +} + + +iso639long = inverse_dict(iso639short) + +iso639code_retired = inverse_dict(iso639retired) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/lazyimport.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/lazyimport.py new file mode 100644 index 0000000000000000000000000000000000000000..e75b328e778d700857140c1dce946369b97d473a --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/lazyimport.py @@ -0,0 +1,137 @@ +# This module is from mx/DateTime/LazyModule.py and is +# distributed under the terms of the eGenix.com Public License Agreement +# https://www.egenix.com/products/eGenix.com-Public-License-1.1.0.pdf + +"""Helper to enable simple lazy module import. + +'Lazy' means the actual import is deferred until an attribute is +requested from the module's namespace. This has the advantage of +allowing all imports to be done at the top of a script (in a +prominent and visible place) without having a great impact +on startup time. + +Copyright (c) 1999-2005, Marc-Andre Lemburg; mailto:mal@lemburg.com +See the documentation for further information on copyrights, +or contact the author. All Rights Reserved. +""" + +### Constants + +_debug = 0 + +### + + +class LazyModule: + """Lazy module class. + + Lazy modules are imported into the given namespaces whenever a + non-special attribute (there are some attributes like __doc__ + that class instances handle without calling __getattr__) is + requested. The module is then registered under the given name + in locals usually replacing the import wrapper instance. The + import itself is done using globals as global namespace. + + Example of creating a lazy load module: + + ISO = LazyModule('ISO',locals(),globals()) + + Later, requesting an attribute from ISO will load the module + automatically into the locals() namespace, overriding the + LazyModule instance: + + t = ISO.Week(1998,1,1) + + """ + + # Flag which indicates whether the LazyModule is initialized or not + __lazymodule_init = 0 + + # Name of the module to load + __lazymodule_name = "" + + # Flag which indicates whether the module was loaded or not + __lazymodule_loaded = 0 + + # Locals dictionary where to register the module + __lazymodule_locals = None + + # Globals dictionary to use for the module import + __lazymodule_globals = None + + def __init__(self, name, locals, globals=None): + """Create a LazyModule instance wrapping module name. + + The module will later on be registered in locals under the + given module name. + + globals is optional and defaults to locals. + + """ + self.__lazymodule_locals = locals + if globals is None: + globals = locals + self.__lazymodule_globals = globals + mainname = globals.get("__name__", "") + if mainname: + self.__name__ = mainname + "." + name + self.__lazymodule_name = name + else: + self.__name__ = self.__lazymodule_name = name + self.__lazymodule_init = 1 + + def __lazymodule_import(self): + """Import the module now.""" + # Load and register module + local_name = self.__lazymodule_name # e.g. "toolbox" + full_name = self.__name__ # e.g. "nltk.toolbox" + if self.__lazymodule_loaded: + return self.__lazymodule_locals[local_name] + if _debug: + print("LazyModule: Loading module %r" % full_name) + self.__lazymodule_locals[local_name] = module = __import__( + full_name, self.__lazymodule_locals, self.__lazymodule_globals, "*" + ) + + # Fill namespace with all symbols from original module to + # provide faster access. + self.__dict__.update(module.__dict__) + + # Set import flag + self.__dict__["__lazymodule_loaded"] = 1 + + if _debug: + print("LazyModule: Module %r loaded" % full_name) + return module + + def __getattr__(self, name): + """Import the module on demand and get the attribute.""" + if self.__lazymodule_loaded: + raise AttributeError(name) + if _debug: + print( + "LazyModule: " + "Module load triggered by attribute %r read access" % name + ) + module = self.__lazymodule_import() + return getattr(module, name) + + def __setattr__(self, name, value): + """Import the module on demand and set the attribute.""" + if not self.__lazymodule_init: + self.__dict__[name] = value + return + if self.__lazymodule_loaded: + self.__lazymodule_locals[self.__lazymodule_name] = value + self.__dict__[name] = value + return + if _debug: + print( + "LazyModule: " + "Module load triggered by attribute %r write access" % name + ) + module = self.__lazymodule_import() + setattr(module, name, value) + + def __repr__(self): + return "" % self.__name__ diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/pathsec.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/pathsec.py new file mode 100644 index 0000000000000000000000000000000000000000..65ebbed5ef7877af04be95805fba6040a227803c --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/pathsec.py @@ -0,0 +1,284 @@ +# Natural Language Toolkit: Centralized I/O security sentinel +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Eric Kafe +# URL: +# For license information, see LICENSE.TXT +# +"""Centralized I/O security sentinel for NLTK.""" + +"""Centralized I/O security sentinel for NLTK.""" +import builtins +import ipaddress +import os +import socket +import sys +import urllib.request +import warnings +import zipfile +from functools import lru_cache +from pathlib import Path +from urllib.parse import unquote, urlparse + +# Security Enforcement Toggle +ENFORCE = False + +_ALLOWED_ROOTS_CACHE = None +_LAST_DATA_PATHS = None + + +def _get_allowed_roots(): + """Dynamically determines allowed directories based on NLTK data paths.""" + global _ALLOWED_ROOTS_CACHE, _LAST_DATA_PATHS + + current_paths = [] + if "nltk.data" in sys.modules: + # Accessing nltk.data.path via sys.modules to avoid top-level circularity + current_paths = list(getattr(sys.modules["nltk.data"], "path", [])) + + env_paths = os.environ.get("NLTK_DATA", "") + current_state = (current_paths, env_paths) + + if _ALLOWED_ROOTS_CACHE is not None and _LAST_DATA_PATHS == current_state: + return _ALLOWED_ROOTS_CACHE + + roots = set() + for p in current_paths + env_paths.split(os.pathsep): + if p: + try: + # Handle both string paths and PathPointer objects + raw_p = p.path if hasattr(p, "path") else p + roots.add(Path(str(raw_p)).resolve()) + except (OSError, ValueError, RuntimeError): + continue + + import tempfile + + for loc in ["~/nltk_data", "/usr/share/nltk_data", tempfile.gettempdir()]: + try: + p = Path(loc).expanduser().resolve() + if p.exists(): + roots.add(p) + except (OSError, ValueError, RuntimeError): + continue + + _ALLOWED_ROOTS_CACHE = roots + _LAST_DATA_PATHS = current_state + return roots + + +def validate_path(path_input, context="NLTK", required_root=None): + """ + Ensures file access is restricted to allowed data directories. + + :param path_input: The path to validate. + :param context: Diagnostic context for warnings/errors. + :param required_root: If provided, enforces that the path is strictly + within this specific directory (scoped sandbox). + """ + if isinstance(path_input, int) or not path_input or not str(path_input).strip(): + return + try: + raw = path_input.path if hasattr(path_input, "path") else str(path_input) + + if "://" in raw: + parsed = urlparse(raw) + if parsed.scheme in ("http", "https", "ftp"): + return + if parsed.scheme == "file": + raw = unquote(parsed.path) + + # Resolve path to catch symlink escapes + try: + target = Path(raw).resolve() + except (OSError, ValueError): + # Fallback for virtual paths inside ZIPs (e.g. corpora/foo.zip/file.txt) + lower_raw = raw.lower() + if ".zip" in lower_raw: + zip_idx = lower_raw.find(".zip") + 4 + target = Path(raw[:zip_idx]).resolve() + else: + target = Path(raw) + + # LAYER 1: Scoped Sandbox (PR #3528 Integration) + # This resolves both target and root to block symlink-based escapes. + if required_root: + root_raw = ( + required_root.path + if hasattr(required_root, "path") + else str(required_root) + ) + scoped_root = Path(root_raw).resolve() + if not (target == scoped_root or target.is_relative_to(scoped_root)): + # Raise ValueError to match NLTK's historical CorpusReader error type + raise ValueError( + f"Security Violation [{context}]: Path {target} escapes root {scoped_root}" + ) + + # LAYER 2: Global NLTK_DATA Sandbox + allowed_roots = _get_allowed_roots() + if any(target == root or target.is_relative_to(root) for root in allowed_roots): + return + + # CWD Fallback (Explicit Opt-In for ENFORCE mode) + try: + cwd = Path(os.getcwd()).resolve() + if target == cwd or target.is_relative_to(cwd): + if any(cwd == root for root in allowed_roots): + return + msg = ( + f"Security Violation [{context}]: CWD access restricted in ENFORCE mode. " + "Authorize via: nltk.data.path.append('.')" + ) + if ENFORCE: + raise PermissionError(msg) + else: + warnings.warn( + f"Security Warning [{context}]: Path {target} allowed via CWD.", + RuntimeWarning, + stacklevel=3, + ) + return + except (OSError, ValueError): + pass + + msg = f"Security Violation [{context}]: Unauthorized path {target}" + if ENFORCE: + raise PermissionError(msg) + else: + warnings.warn(msg, RuntimeWarning, stacklevel=3) + except (PermissionError, ValueError): + raise + except Exception: + if ENFORCE: + raise + + +def validate_zip_archive( + zip_obj_or_path, target_root, specific_member=None, context="ZipAudit" +): + """Enhanced Zip-Slip protection using Pathlib for cross-platform safety.""" + try: + target = Path(target_root).resolve() + + def _audit(zf): + members = ( + [specific_member] if specific_member is not None else zf.namelist() + ) + for name in members: + name_str = name.filename if hasattr(name, "filename") else str(name) + if "\0" in name_str: + raise ValueError(f"Null byte in ZIP member: {name_str}") + + member_path = (target / name_str).resolve() + if not (member_path == target or member_path.is_relative_to(target)): + msg = f"Security Violation [{context}]: Traversal member '{name_str}' detected." + if ENFORCE: + raise PermissionError(msg) + else: + warnings.warn(msg, RuntimeWarning, stacklevel=3) + + if isinstance(zip_obj_or_path, zipfile.ZipFile): + _audit(zip_obj_or_path) + else: + with zipfile.ZipFile(zip_obj_or_path, "r") as zf: + _audit(zf) + except (PermissionError, ValueError): + raise + except (OSError, zipfile.BadZipFile): + if ENFORCE: + raise PermissionError("Zip validation failed") + + +@lru_cache(maxsize=256) +def _resolve_hostname(hostname): + """Cached hostname resolution to mitigate DNS rebinding.""" + try: + return socket.getaddrinfo(hostname, None, proto=socket.IPPROTO_TCP) + except (OSError, ValueError): + return [] + + +def validate_network_url(url_input, context="NetworkIO"): + """Hardened URL validation with SSRF protection.""" + if not url_input or not str(url_input).strip(): + return + try: + parsed = urlparse(str(url_input)) + if parsed.scheme == "file": + validate_path(unquote(parsed.path), context=f"{context}.file_scheme") + return + + if parsed.scheme not in ("http", "https"): + msg = ( + f"Security Violation [{context}]: Unsupported scheme '{parsed.scheme}'." + ) + if ENFORCE: + raise PermissionError(msg) + else: + warnings.warn(msg, RuntimeWarning, stacklevel=3) + return + + for result in _resolve_hostname(parsed.hostname or ""): + ip = ipaddress.ip_address(result[4][0]) + if ip.is_loopback or ip.is_link_local or ip.is_multicast or ip.is_private: + msg = f"Security Violation [{context}]: SSRF attempt to restricted IP {ip}" + if ENFORCE: + raise PermissionError(msg) + else: + warnings.warn(msg, RuntimeWarning, stacklevel=3) + except (PermissionError, ValueError): + raise + except Exception: + if ENFORCE: + raise + + +class _ValidatingRedirectHandler(urllib.request.HTTPRedirectHandler): + """Ensures that every step of a redirect chain is re-validated against SSRF.""" + + def redirect_request(self, req, fp, code, msg, headers, newurl): + validate_network_url(newurl, context="NetworkRedirect") + return super().redirect_request(req, fp, code, msg, headers, newurl) + + +def urlopen(url, *args, **kwargs): + """Secure wrapper for urllib.request.urlopen with redirect validation.""" + url_str = url.full_url if hasattr(url, "full_url") else str(url) + validate_network_url(url_str, context="pathsec.urlopen") + opener = urllib.request.build_opener(_ValidatingRedirectHandler()) + return opener.open(url, *args, **kwargs) + + +def open(file, mode="r", **kwargs): + """Secure wrapper for builtins.open.""" + validate_path(file, context="pathsec.open") + return builtins.open(file, mode=mode, **kwargs) + + +class ZipFile(zipfile.ZipFile): + """Secure wrapper for zipfile.ZipFile.""" + + def __init__(self, file, *args, **kwargs): + if isinstance(file, (str, Path)): + validate_path(file, context="pathsec.ZipFile") + super().__init__(file, *args, **kwargs) + + def extract(self, member, path=None, pwd=None): + validate_zip_archive(self, path or os.getcwd(), specific_member=member) + return super().extract(member, path, pwd) + + def extractall(self, path=None, members=None, pwd=None): + validate_zip_archive(self, path or os.getcwd()) + super().extractall(path, members, pwd) + + +__all__ = [ + "validate_path", + "validate_network_url", + "validate_zip_archive", + "open", + "urlopen", + "ZipFile", + "ENFORCE", +] diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/picklesec.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/picklesec.py new file mode 100644 index 0000000000000000000000000000000000000000..62e04d7ba194b783dd960e058fa53186fa627c30 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/picklesec.py @@ -0,0 +1,72 @@ +# Natural Language Toolkit: Safer pickle loading. +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Eric Kafe +# URL: +# For license information, see LICENSE.TXT +# + +""" +Helpers for safer and/or more explicit pickle usage in NLTK. + +- RestrictedUnpickler: blocks unpickling of *any* globals (classes/functions). + Intended for loading NLTK data packages where we control the serialization. +- WarningUnpickler: emits a security warning before unpickling (does not make + unpickling safe). +""" + +from __future__ import annotations + +import pickle +import warnings +from typing import Any, BinaryIO + +PICKLE_WARNING = ( + "Security warning: loading pickles can execute arbitrary code. " + "Only load pickle files from trusted sources and never from untrusted " + "or unauthenticated locations." +) + + +class RestrictedUnpickler(pickle.Unpickler): + """ + Unpickler that prevents any class or function from being used during loading. + """ + + def find_class(self, module: str, name: str) -> Any: + # Forbid every function/class global. + raise pickle.UnpicklingError(f"global '{module}.{name}' is forbidden") + + +class WarningUnpickler(pickle.Unpickler): + """Unpickler that emits PICKLE_WARNING once per instance.""" + + def __init__(self, file: BinaryIO, *, context: str | None = None, **kwargs: Any): + super().__init__(file, **kwargs) + self._context = context + self._warned = False + + def load(self) -> Any: + if not self._warned: + msg = ( + PICKLE_WARNING + if self._context is None + else f"{PICKLE_WARNING} ({self._context})" + ) + warnings.warn(msg, RuntimeWarning, stacklevel=3) + self._warned = True + return super().load() + + +def pickle_load( + file: BinaryIO, *, context: str | None = None, restricted: bool = False +) -> Any: + """ + Convenience wrapper similar to pickle.load(file). + + - If restricted=True, uses RestrictedUnpickler (no warning by default). + - If restricted=False, uses WarningUnpickler and emits a warning. + """ + if restricted: + return RestrictedUnpickler(file).load() + return WarningUnpickler(file, context=context).load() diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/probability.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/probability.py new file mode 100644 index 0000000000000000000000000000000000000000..6cfec14d207df2a246a369bf6aa3e12814b1550a --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/probability.py @@ -0,0 +1,2578 @@ +# Natural Language Toolkit: Probability and Statistics +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Edward Loper +# Steven Bird (additions) +# Trevor Cohn (additions) +# Peter Ljunglöf (additions) +# Liang Dong (additions) +# Geoffrey Sampson (additions) +# Ilia Kurenkov (additions) +# +# URL: +# For license information, see LICENSE.TXT + +""" +Classes for representing and processing probabilistic information. + +The ``FreqDist`` class is used to encode "frequency distributions", +which count the number of times that each outcome of an experiment +occurs. + +The ``ProbDistI`` class defines a standard interface for "probability +distributions", which encode the probability of each outcome for an +experiment. There are two types of probability distribution: + + - "derived probability distributions" are created from frequency + distributions. They attempt to model the probability distribution + that generated the frequency distribution. + - "analytic probability distributions" are created directly from + parameters (such as variance). + +The ``ConditionalFreqDist`` class and ``ConditionalProbDistI`` interface +are used to encode conditional distributions. Conditional probability +distributions can be derived or analytic; but currently the only +implementation of the ``ConditionalProbDistI`` interface is +``ConditionalProbDist``, a derived distribution. + +""" + +import array +import math +import random +import warnings +from abc import ABCMeta, abstractmethod +from collections import Counter, defaultdict +from functools import reduce + +from nltk.internals import raise_unorderable_types + +_NINF = float("-1e300") + +##////////////////////////////////////////////////////// +## Frequency Distributions +##////////////////////////////////////////////////////// + + +class FreqDist(Counter): + """ + A frequency distribution for the outcomes of an experiment. A + frequency distribution records the number of times each outcome of + an experiment has occurred. For example, a frequency distribution + could be used to record the frequency of each word type in a + document. Formally, a frequency distribution can be defined as a + function mapping from each sample to the number of times that + sample occurred as an outcome. + + Frequency distributions are generally constructed by running a + number of experiments, and incrementing the count for a sample + every time it is an outcome of an experiment. For example, the + following code will produce a frequency distribution that encodes + how often each word occurs in a text: + + >>> from nltk.tokenize import word_tokenize + >>> from nltk.probability import FreqDist + >>> sent = 'This is an example sentence' + >>> fdist = FreqDist() + >>> for word in word_tokenize(sent): + ... fdist[word.lower()] += 1 + + An equivalent way to do this is with the initializer: + + >>> fdist = FreqDist(word.lower() for word in word_tokenize(sent)) + + """ + + def __init__(self, samples=None): + """ + Construct a new frequency distribution. If ``samples`` is + given, then the frequency distribution will be initialized + with the count of each object in ``samples``; otherwise, it + will be initialized to be empty. + + In particular, ``FreqDist()`` returns an empty frequency + distribution; and ``FreqDist(samples)`` first creates an empty + frequency distribution, and then calls ``update`` with the + list ``samples``. + + :param samples: The samples to initialize the frequency + distribution with. + :type samples: Sequence + """ + Counter.__init__(self, samples) + + # Cached number of samples in this FreqDist + self._N = None + + def N(self): + """ + Return the total number of sample outcomes that have been + recorded by this FreqDist. For the number of unique + sample values (or bins) with counts greater than zero, use + ``FreqDist.B()``. + + :rtype: int + """ + if self._N is None: + # Not already cached, or cache has been invalidated + self._N = sum(self.values()) + return self._N + + def __setitem__(self, key, val): + """ + Override ``Counter.__setitem__()`` to invalidate the cached N + """ + self._N = None + super().__setitem__(key, val) + + def __delitem__(self, key): + """ + Override ``Counter.__delitem__()`` to invalidate the cached N + """ + self._N = None + super().__delitem__(key) + + def update(self, *args, **kwargs): + """ + Override ``Counter.update()`` to invalidate the cached N + """ + self._N = None + super().update(*args, **kwargs) + + def setdefault(self, key, val): + """ + Override ``Counter.setdefault()`` to invalidate the cached N + """ + self._N = None + super().setdefault(key, val) + + def B(self): + """ + Return the total number of sample values (or "bins") that + have counts greater than zero. For the total + number of sample outcomes recorded, use ``FreqDist.N()``. + (FreqDist.B() is the same as len(FreqDist).) + + :rtype: int + """ + return len(self) + + def hapaxes(self): + """ + Return a list of all samples that occur once (hapax legomena) + + :rtype: list + """ + return [item for item in self if self[item] == 1] + + def Nr(self, r, bins=None): + return self.r_Nr(bins)[r] + + def r_Nr(self, bins=None): + """ + Return the dictionary mapping r to Nr, the number of samples with frequency r, where Nr > 0. + + :type bins: int + :param bins: The number of possible sample outcomes. ``bins`` + is used to calculate Nr(0). In particular, Nr(0) is + ``bins-self.B()``. If ``bins`` is not specified, it + defaults to ``self.B()`` (so Nr(0) will be 0). + :rtype: int + """ + + _r_Nr = defaultdict(int) + for count in self.values(): + _r_Nr[count] += 1 + + # Special case for Nr[0]: + _r_Nr[0] = bins - self.B() if bins is not None else 0 + + return _r_Nr + + def _cumulative_frequencies(self, samples): + """ + Return the cumulative frequencies of the specified samples. + If no samples are specified, all counts are returned, starting + with the largest. + + :param samples: the samples whose frequencies should be returned. + :type samples: any + :rtype: list(float) + """ + cf = 0.0 + for sample in samples: + cf += self[sample] + yield cf + + # slightly odd nomenclature freq() if FreqDist does counts and ProbDist does probs, + # here, freq() does probs + def freq(self, sample): + """ + Return the frequency of a given sample. The frequency of a + sample is defined as the count of that sample divided by the + total number of sample outcomes that have been recorded by + this FreqDist. The count of a sample is defined as the + number of times that sample outcome was recorded by this + FreqDist. Frequencies are always real numbers in the range + [0, 1]. + + :param sample: the sample whose frequency + should be returned. + :type sample: any + :rtype: float + """ + n = self.N() + if n == 0: + return 0 + return self[sample] / n + + def max(self): + """ + Return the sample with the greatest number of outcomes in this + frequency distribution. If two or more samples have the same + number of outcomes, return one of them; which sample is + returned is undefined. If no outcomes have occurred in this + frequency distribution, return None. + + :return: The sample with the maximum number of outcomes in this + frequency distribution. + :rtype: any or None + """ + if len(self) == 0: + raise ValueError( + "A FreqDist must have at least one sample before max is defined." + ) + return self.most_common(1)[0][0] + + def plot( + self, *args, title="", cumulative=False, percents=False, show=False, **kwargs + ): + """ + Plot samples from the frequency distribution + displaying the most frequent sample first. If an integer + parameter is supplied, stop after this many samples have been + plotted. For a cumulative plot, specify cumulative=True. Additional + ``**kwargs`` are passed to matplotlib's plot function. + (Requires Matplotlib to be installed.) + + :param title: The title for the graph. + :type title: str + :param cumulative: Whether the plot is cumulative. (default = False) + :type cumulative: bool + :param percents: Whether the plot uses percents instead of counts. (default = False) + :type percents: bool + :param show: Whether to show the plot, or only return the ax. + :type show: bool + """ + try: + import matplotlib.pyplot as plt + except ImportError as e: + raise ValueError( + "The plot function requires matplotlib to be installed." + "See https://matplotlib.org/" + ) from e + + if len(args) == 0: + args = [len(self)] + samples = [item for item, _ in self.most_common(*args)] + + if cumulative: + freqs = list(self._cumulative_frequencies(samples)) + ylabel = "Cumulative " + else: + freqs = [self[sample] for sample in samples] + ylabel = "" + + if percents: + freqs = [f / self.N() * 100 for f in freqs] + ylabel += "Percents" + else: + ylabel += "Counts" + + ax = plt.gca() + ax.grid(True, color="silver") + + if "linewidth" not in kwargs: + kwargs["linewidth"] = 2 + if title: + ax.set_title(title) + + ax.plot(freqs, **kwargs) + ax.set_xticks(range(len(samples))) + ax.set_xticklabels([str(s) for s in samples], rotation=90) + ax.set_xlabel("Samples") + ax.set_ylabel(ylabel) + + if show: + plt.show() + + return ax + + def tabulate(self, *args, **kwargs): + """ + Tabulate the given samples from the frequency distribution (cumulative), + displaying the most frequent sample first. If an integer + parameter is supplied, stop after this many samples have been + plotted. + + :param samples: The samples to plot (default is all samples) + :type samples: list + :param cumulative: A flag to specify whether the freqs are cumulative (default = False) + :type title: bool + """ + if len(args) == 0: + args = [len(self)] + samples = _get_kwarg( + kwargs, "samples", [item for item, _ in self.most_common(*args)] + ) + + cumulative = _get_kwarg(kwargs, "cumulative", False) + if cumulative: + freqs = list(self._cumulative_frequencies(samples)) + else: + freqs = [self[sample] for sample in samples] + # percents = [f * 100 for f in freqs] only in ProbDist? + + width = max(len(f"{s}") for s in samples) + width = max(width, max(len("%d" % f) for f in freqs)) + + for i in range(len(samples)): + print("%*s" % (width, samples[i]), end=" ") + print() + for i in range(len(samples)): + print("%*d" % (width, freqs[i]), end=" ") + print() + + def copy(self): + """ + Create a copy of this frequency distribution. + + :rtype: FreqDist + """ + return self.__class__(self) + + # Mathematical operatiors + + def __add__(self, other): + """ + Add counts from two counters. + + >>> FreqDist('abbb') + FreqDist('bcc') + FreqDist({'b': 4, 'c': 2, 'a': 1}) + + """ + return self.__class__(super().__add__(other)) + + def __sub__(self, other): + """ + Subtract count, but keep only results with positive counts. + + >>> FreqDist('abbbc') - FreqDist('bccd') + FreqDist({'b': 2, 'a': 1}) + + """ + return self.__class__(super().__sub__(other)) + + def __or__(self, other): + """ + Union is the maximum of value in either of the input counters. + + >>> FreqDist('abbb') | FreqDist('bcc') + FreqDist({'b': 3, 'c': 2, 'a': 1}) + + """ + return self.__class__(super().__or__(other)) + + def __and__(self, other): + """ + Intersection is the minimum of corresponding counts. + + >>> FreqDist('abbb') & FreqDist('bcc') + FreqDist({'b': 1}) + + """ + return self.__class__(super().__and__(other)) + + def __le__(self, other): + """ + Returns True if this frequency distribution is a subset of the other + and for no key the value exceeds the value of the same key from + the other frequency distribution. + + The <= operator forms partial order and satisfying the axioms + reflexivity, antisymmetry and transitivity. + + >>> FreqDist('a') <= FreqDist('a') + True + >>> a = FreqDist('abc') + >>> b = FreqDist('aabc') + >>> (a <= b, b <= a) + (True, False) + >>> FreqDist('a') <= FreqDist('abcd') + True + >>> FreqDist('abc') <= FreqDist('xyz') + False + >>> FreqDist('xyz') <= FreqDist('abc') + False + >>> c = FreqDist('a') + >>> d = FreqDist('aa') + >>> e = FreqDist('aaa') + >>> c <= d and d <= e and c <= e + True + """ + if not isinstance(other, FreqDist): + raise_unorderable_types("<=", self, other) + return set(self).issubset(other) and all( + self[key] <= other[key] for key in self + ) + + def __ge__(self, other): + if not isinstance(other, FreqDist): + raise_unorderable_types(">=", self, other) + return set(self).issuperset(other) and all( + self[key] >= other[key] for key in other + ) + + __lt__ = lambda self, other: self <= other and not self == other + __gt__ = lambda self, other: self >= other and not self == other + + def __repr__(self): + """ + Return a string representation of this FreqDist. + + :rtype: string + """ + return self.pformat() + + def pprint(self, maxlen=10, stream=None): + """ + Print a string representation of this FreqDist to 'stream' + + :param maxlen: The maximum number of items to print + :type maxlen: int + :param stream: The stream to print to. stdout by default + """ + print(self.pformat(maxlen=maxlen), file=stream) + + def pformat(self, maxlen=10): + """ + Return a string representation of this FreqDist. + + :param maxlen: The maximum number of items to display + :type maxlen: int + :rtype: string + """ + items = ["{!r}: {!r}".format(*item) for item in self.most_common(maxlen)] + if len(self) > maxlen: + items.append("...") + return "FreqDist({{{0}}})".format(", ".join(items)) + + def __str__(self): + """ + Return a string representation of this FreqDist. + + :rtype: string + """ + return "" % (len(self), self.N()) + + def __iter__(self): + """ + Return an iterator which yields tokens ordered by frequency. + + :rtype: iterator + """ + for token, _ in self.most_common(self.B()): + yield token + + +##////////////////////////////////////////////////////// +## Probability Distributions +##////////////////////////////////////////////////////// + + +class ProbDistI(metaclass=ABCMeta): + """ + A probability distribution for the outcomes of an experiment. A + probability distribution specifies how likely it is that an + experiment will have any given outcome. For example, a + probability distribution could be used to predict the probability + that a token in a document will have a given type. Formally, a + probability distribution can be defined as a function mapping from + samples to nonnegative real numbers, such that the sum of every + number in the function's range is 1.0. A ``ProbDist`` is often + used to model the probability distribution of the experiment used + to generate a frequency distribution. + """ + + SUM_TO_ONE = True + """True if the probabilities of the samples in this probability + distribution will always sum to one.""" + + @abstractmethod + def __init__(self): + """ + Classes inheriting from ProbDistI should implement __init__. + """ + + @abstractmethod + def prob(self, sample): + """ + Return the probability for a given sample. Probabilities + are always real numbers in the range [0, 1]. + + :param sample: The sample whose probability + should be returned. + :type sample: any + :rtype: float + """ + + def logprob(self, sample): + """ + Return the base 2 logarithm of the probability for a given sample. + + :param sample: The sample whose probability + should be returned. + :type sample: any + :rtype: float + """ + # Default definition, in terms of prob() + p = self.prob(sample) + return math.log(p, 2) if p != 0 else _NINF + + @abstractmethod + def max(self): + """ + Return the sample with the greatest probability. If two or + more samples have the same probability, return one of them; + which sample is returned is undefined. + + :rtype: any + """ + + @abstractmethod + def samples(self): + """ + Return a list of all samples that have nonzero probabilities. + Use ``prob`` to find the probability of each sample. + + :rtype: list + """ + + # cf self.SUM_TO_ONE + def discount(self): + """ + Return the ratio by which counts are discounted on average: c*/c + + :rtype: float + """ + return 0.0 + + # Subclasses should define more efficient implementations of this, + # where possible. + def generate(self): + """ + Return a randomly selected sample from this probability distribution. + The probability of returning each sample ``samp`` is equal to + ``self.prob(samp)``. + """ + p = random.random() + p_init = p + for sample in self.samples(): + p -= self.prob(sample) + if p <= 0: + return sample + # allow for some rounding error: + if p < 0.0001: + return sample + # we *should* never get here + if self.SUM_TO_ONE: + warnings.warn( + "Probability distribution %r sums to %r; generate()" + " is returning an arbitrary sample." % (self, p_init - p) + ) + return random.choice(list(self.samples())) + + +class UniformProbDist(ProbDistI): + """ + A probability distribution that assigns equal probability to each + sample in a given set; and a zero probability to all other + samples. + """ + + def __init__(self, samples): + """ + Construct a new uniform probability distribution, that assigns + equal probability to each sample in ``samples``. + + :param samples: The samples that should be given uniform + probability. + :type samples: list + :raise ValueError: If ``samples`` is empty. + """ + if len(samples) == 0: + raise ValueError( + "A Uniform probability distribution must " + "have at least one sample." + ) + self._sampleset = set(samples) + self._prob = 1.0 / len(self._sampleset) + self._samples = list(self._sampleset) + + def prob(self, sample): + return self._prob if sample in self._sampleset else 0 + + def max(self): + return self._samples[0] + + def samples(self): + return self._samples + + def __repr__(self): + return "" % len(self._sampleset) + + +class RandomProbDist(ProbDistI): + """ + Generates a random probability distribution whereby each sample + will be between 0 and 1 with equal probability (uniform random distribution. + Also called a continuous uniform distribution). + """ + + def __init__(self, samples): + if len(samples) == 0: + raise ValueError( + "A probability distribution must " + "have at least one sample." + ) + self._probs = self.unirand(samples) + self._samples = list(self._probs.keys()) + + @classmethod + def unirand(cls, samples): + """ + The key function that creates a randomized initial distribution + that still sums to 1. Set as a dictionary of prob values so that + it can still be passed to MutableProbDist and called with identical + syntax to UniformProbDist + """ + samples = set(samples) + randrow = [random.random() for i in range(len(samples))] + total = sum(randrow) + for i, x in enumerate(randrow): + randrow[i] = x / total + + total = sum(randrow) + if total != 1: + # this difference, if present, is so small (near NINF) that it + # can be subtracted from any element without risking probs not (0 1) + randrow[-1] -= total - 1 + + return {s: randrow[i] for i, s in enumerate(samples)} + + def max(self): + if not hasattr(self, "_max"): + self._max = max((p, v) for (v, p) in self._probs.items())[1] + return self._max + + def prob(self, sample): + return self._probs.get(sample, 0) + + def samples(self): + return self._samples + + def __repr__(self): + return "" % len(self._probs) + + +class DictionaryProbDist(ProbDistI): + """ + A probability distribution whose probabilities are directly + specified by a given dictionary. The given dictionary maps + samples to probabilities. + """ + + def __init__(self, prob_dict=None, log=False, normalize=False): + """ + Construct a new probability distribution from the given + dictionary, which maps values to probabilities (or to log + probabilities, if ``log`` is true). If ``normalize`` is + true, then the probability values are scaled by a constant + factor such that they sum to 1. + + If called without arguments, the resulting probability + distribution assigns zero probability to all values. + """ + + self._prob_dict = prob_dict.copy() if prob_dict is not None else {} + self._log = log + + # Normalize the distribution, if requested. + if normalize: + if len(prob_dict) == 0: + raise ValueError( + "A DictionaryProbDist must have at least one sample " + + "before it can be normalized." + ) + if log: + value_sum = sum_logs(list(self._prob_dict.values())) + if value_sum <= _NINF: + logp = math.log(1.0 / len(prob_dict), 2) + for x in prob_dict: + self._prob_dict[x] = logp + else: + for x, p in self._prob_dict.items(): + self._prob_dict[x] -= value_sum + else: + value_sum = sum(self._prob_dict.values()) + if value_sum == 0: + p = 1.0 / len(prob_dict) + for x in prob_dict: + self._prob_dict[x] = p + else: + norm_factor = 1.0 / value_sum + for x, p in self._prob_dict.items(): + self._prob_dict[x] *= norm_factor + + def prob(self, sample): + if self._log: + return 2 ** (self._prob_dict[sample]) if sample in self._prob_dict else 0 + else: + return self._prob_dict.get(sample, 0) + + def logprob(self, sample): + if self._log: + return self._prob_dict.get(sample, _NINF) + else: + if sample not in self._prob_dict: + return _NINF + elif self._prob_dict[sample] == 0: + return _NINF + else: + return math.log(self._prob_dict[sample], 2) + + def max(self): + if not hasattr(self, "_max"): + self._max = max((p, v) for (v, p) in self._prob_dict.items())[1] + return self._max + + def samples(self): + return self._prob_dict.keys() + + def __repr__(self): + return "" % len(self._prob_dict) + + +class MLEProbDist(ProbDistI): + """ + The maximum likelihood estimate for the probability distribution + of the experiment used to generate a frequency distribution. The + "maximum likelihood estimate" approximates the probability of + each sample as the frequency of that sample in the frequency + distribution. + """ + + def __init__(self, freqdist, bins=None): + """ + Use the maximum likelihood estimate to create a probability + distribution for the experiment used to generate ``freqdist``. + + :type freqdist: FreqDist + :param freqdist: The frequency distribution that the + probability estimates should be based on. + """ + self._freqdist = freqdist + + def freqdist(self): + """ + Return the frequency distribution that this probability + distribution is based on. + + :rtype: FreqDist + """ + return self._freqdist + + def prob(self, sample): + return self._freqdist.freq(sample) + + def max(self): + return self._freqdist.max() + + def samples(self): + return self._freqdist.keys() + + def __repr__(self): + """ + :rtype: str + :return: A string representation of this ``ProbDist``. + """ + return "" % self._freqdist.N() + + +class LidstoneProbDist(ProbDistI): + """ + The Lidstone estimate for the probability distribution of the + experiment used to generate a frequency distribution. The + "Lidstone estimate" is parameterized by a real number *gamma*, + which typically ranges from 0 to 1. The Lidstone estimate + approximates the probability of a sample with count *c* from an + experiment with *N* outcomes and *B* bins as + ``c+gamma)/(N+B*gamma)``. This is equivalent to adding + *gamma* to the count for each bin, and taking the maximum + likelihood estimate of the resulting frequency distribution. + """ + + SUM_TO_ONE = False + + def __init__(self, freqdist, gamma, bins=None): + """ + Use the Lidstone estimate to create a probability distribution + for the experiment used to generate ``freqdist``. + + :type freqdist: FreqDist + :param freqdist: The frequency distribution that the + probability estimates should be based on. + :type gamma: float + :param gamma: A real number used to parameterize the + estimate. The Lidstone estimate is equivalent to adding + *gamma* to the count for each bin, and taking the + maximum likelihood estimate of the resulting frequency + distribution. + :type bins: int + :param bins: The number of sample values that can be generated + by the experiment that is described by the probability + distribution. This value must be correctly set for the + probabilities of the sample values to sum to one. If + ``bins`` is not specified, it defaults to ``freqdist.B()``. + """ + if (bins == 0) or (bins is None and freqdist.N() == 0): + name = self.__class__.__name__[:-8] + raise ValueError( + "A %s probability distribution " % name + "must have at least one bin." + ) + if (bins is not None) and (bins < freqdist.B()): + name = self.__class__.__name__[:-8] + raise ValueError( + "\nThe number of bins in a %s distribution " % name + + "(%d) must be greater than or equal to\n" % bins + + "the number of bins in the FreqDist used " + + "to create it (%d)." % freqdist.B() + ) + + self._freqdist = freqdist + self._gamma = float(gamma) + self._N = self._freqdist.N() + + if bins is None: + bins = freqdist.B() + self._bins = bins + + self._divisor = self._N + bins * gamma + if self._divisor == 0.0: + # In extreme cases we force the probability to be 0, + # which it will be, since the count will be 0: + self._gamma = 0 + self._divisor = 1 + + def freqdist(self): + """ + Return the frequency distribution that this probability + distribution is based on. + + :rtype: FreqDist + """ + return self._freqdist + + def prob(self, sample): + c = self._freqdist[sample] + return (c + self._gamma) / self._divisor + + def max(self): + # For Lidstone distributions, probability is monotonic with + # frequency, so the most probable sample is the one that + # occurs most frequently. + return self._freqdist.max() + + def samples(self): + return self._freqdist.keys() + + def discount(self): + gb = self._gamma * self._bins + return gb / (self._N + gb) + + def __repr__(self): + """ + Return a string representation of this ``ProbDist``. + + :rtype: str + """ + return "" % self._freqdist.N() + + +class LaplaceProbDist(LidstoneProbDist): + """ + The Laplace estimate for the probability distribution of the + experiment used to generate a frequency distribution. The + "Laplace estimate" approximates the probability of a sample with + count *c* from an experiment with *N* outcomes and *B* bins as + *(c+1)/(N+B)*. This is equivalent to adding one to the count for + each bin, and taking the maximum likelihood estimate of the + resulting frequency distribution. + """ + + def __init__(self, freqdist, bins=None): + """ + Use the Laplace estimate to create a probability distribution + for the experiment used to generate ``freqdist``. + + :type freqdist: FreqDist + :param freqdist: The frequency distribution that the + probability estimates should be based on. + :type bins: int + :param bins: The number of sample values that can be generated + by the experiment that is described by the probability + distribution. This value must be correctly set for the + probabilities of the sample values to sum to one. If + ``bins`` is not specified, it defaults to ``freqdist.B()``. + """ + LidstoneProbDist.__init__(self, freqdist, 1, bins) + + def __repr__(self): + """ + :rtype: str + :return: A string representation of this ``ProbDist``. + """ + return "" % self._freqdist.N() + + +class ELEProbDist(LidstoneProbDist): + """ + The expected likelihood estimate for the probability distribution + of the experiment used to generate a frequency distribution. The + "expected likelihood estimate" approximates the probability of a + sample with count *c* from an experiment with *N* outcomes and + *B* bins as *(c+0.5)/(N+B/2)*. This is equivalent to adding 0.5 + to the count for each bin, and taking the maximum likelihood + estimate of the resulting frequency distribution. + """ + + def __init__(self, freqdist, bins=None): + """ + Use the expected likelihood estimate to create a probability + distribution for the experiment used to generate ``freqdist``. + + :type freqdist: FreqDist + :param freqdist: The frequency distribution that the + probability estimates should be based on. + :type bins: int + :param bins: The number of sample values that can be generated + by the experiment that is described by the probability + distribution. This value must be correctly set for the + probabilities of the sample values to sum to one. If + ``bins`` is not specified, it defaults to ``freqdist.B()``. + """ + LidstoneProbDist.__init__(self, freqdist, 0.5, bins) + + def __repr__(self): + """ + Return a string representation of this ``ProbDist``. + + :rtype: str + """ + return "" % self._freqdist.N() + + +class HeldoutProbDist(ProbDistI): + """ + The heldout estimate for the probability distribution of the + experiment used to generate two frequency distributions. These + two frequency distributions are called the "heldout frequency + distribution" and the "base frequency distribution." The + "heldout estimate" uses uses the "heldout frequency + distribution" to predict the probability of each sample, given its + frequency in the "base frequency distribution". + + In particular, the heldout estimate approximates the probability + for a sample that occurs *r* times in the base distribution as + the average frequency in the heldout distribution of all samples + that occur *r* times in the base distribution. + + This average frequency is *Tr[r]/(Nr[r].N)*, where: + + - *Tr[r]* is the total count in the heldout distribution for + all samples that occur *r* times in the base distribution. + - *Nr[r]* is the number of samples that occur *r* times in + the base distribution. + - *N* is the number of outcomes recorded by the heldout + frequency distribution. + + In order to increase the efficiency of the ``prob`` member + function, *Tr[r]/(Nr[r].N)* is precomputed for each value of *r* + when the ``HeldoutProbDist`` is created. + + :type _estimate: list(float) + :ivar _estimate: A list mapping from *r*, the number of + times that a sample occurs in the base distribution, to the + probability estimate for that sample. ``_estimate[r]`` is + calculated by finding the average frequency in the heldout + distribution of all samples that occur *r* times in the base + distribution. In particular, ``_estimate[r]`` = + *Tr[r]/(Nr[r].N)*. + :type _max_r: int + :ivar _max_r: The maximum number of times that any sample occurs + in the base distribution. ``_max_r`` is used to decide how + large ``_estimate`` must be. + """ + + SUM_TO_ONE = False + + def __init__(self, base_fdist, heldout_fdist, bins=None): + """ + Use the heldout estimate to create a probability distribution + for the experiment used to generate ``base_fdist`` and + ``heldout_fdist``. + + :type base_fdist: FreqDist + :param base_fdist: The base frequency distribution. + :type heldout_fdist: FreqDist + :param heldout_fdist: The heldout frequency distribution. + :type bins: int + :param bins: The number of sample values that can be generated + by the experiment that is described by the probability + distribution. This value must be correctly set for the + probabilities of the sample values to sum to one. If + ``bins`` is not specified, it defaults to ``freqdist.B()``. + """ + + self._base_fdist = base_fdist + self._heldout_fdist = heldout_fdist + + # The max number of times any sample occurs in base_fdist. + self._max_r = base_fdist[base_fdist.max()] + + # Calculate Tr, Nr, and N. + Tr = self._calculate_Tr() + r_Nr = base_fdist.r_Nr(bins) + Nr = [r_Nr[r] for r in range(self._max_r + 1)] + N = heldout_fdist.N() + + # Use Tr, Nr, and N to compute the probability estimate for + # each value of r. + self._estimate = self._calculate_estimate(Tr, Nr, N) + + def _calculate_Tr(self): + """ + Return the list *Tr*, where *Tr[r]* is the total count in + ``heldout_fdist`` for all samples that occur *r* + times in ``base_fdist``. + + :rtype: list(float) + """ + Tr = [0.0] * (self._max_r + 1) + for sample in self._heldout_fdist: + r = self._base_fdist[sample] + Tr[r] += self._heldout_fdist[sample] + return Tr + + def _calculate_estimate(self, Tr, Nr, N): + """ + Return the list *estimate*, where *estimate[r]* is the probability + estimate for any sample that occurs *r* times in the base frequency + distribution. In particular, *estimate[r]* is *Tr[r]/(N[r].N)*. + In the special case that *N[r]=0*, *estimate[r]* will never be used; + so we define *estimate[r]=None* for those cases. + + :rtype: list(float) + :type Tr: list(float) + :param Tr: the list *Tr*, where *Tr[r]* is the total count in + the heldout distribution for all samples that occur *r* + times in base distribution. + :type Nr: list(float) + :param Nr: The list *Nr*, where *Nr[r]* is the number of + samples that occur *r* times in the base distribution. + :type N: int + :param N: The total number of outcomes recorded by the heldout + frequency distribution. + """ + estimate = [] + for r in range(self._max_r + 1): + if Nr[r] == 0: + estimate.append(None) + else: + estimate.append(Tr[r] / (Nr[r] * N)) + return estimate + + def base_fdist(self): + """ + Return the base frequency distribution that this probability + distribution is based on. + + :rtype: FreqDist + """ + return self._base_fdist + + def heldout_fdist(self): + """ + Return the heldout frequency distribution that this + probability distribution is based on. + + :rtype: FreqDist + """ + return self._heldout_fdist + + def samples(self): + return self._base_fdist.keys() + + def prob(self, sample): + # Use our precomputed probability estimate. + r = self._base_fdist[sample] + return self._estimate[r] + + def max(self): + # Note: the Heldout estimation is *not* necessarily monotonic; + # so this implementation is currently broken. However, it + # should give the right answer *most* of the time. :) + return self._base_fdist.max() + + def discount(self): + raise NotImplementedError() + + def __repr__(self): + """ + :rtype: str + :return: A string representation of this ``ProbDist``. + """ + s = "" + return s % (self._base_fdist.N(), self._heldout_fdist.N()) + + +class CrossValidationProbDist(ProbDistI): + """ + The cross-validation estimate for the probability distribution of + the experiment used to generate a set of frequency distribution. + The "cross-validation estimate" for the probability of a sample + is found by averaging the held-out estimates for the sample in + each pair of frequency distributions. + """ + + SUM_TO_ONE = False + + def __init__(self, freqdists, bins): + """ + Use the cross-validation estimate to create a probability + distribution for the experiment used to generate + ``freqdists``. + + :type freqdists: list(FreqDist) + :param freqdists: A list of the frequency distributions + generated by the experiment. + :type bins: int + :param bins: The number of sample values that can be generated + by the experiment that is described by the probability + distribution. This value must be correctly set for the + probabilities of the sample values to sum to one. If + ``bins`` is not specified, it defaults to ``freqdist.B()``. + """ + self._freqdists = freqdists + + # Create a heldout probability distribution for each pair of + # frequency distributions in freqdists. + self._heldout_probdists = [] + for fdist1 in freqdists: + for fdist2 in freqdists: + if fdist1 is not fdist2: + probdist = HeldoutProbDist(fdist1, fdist2, bins) + self._heldout_probdists.append(probdist) + + def freqdists(self): + """ + Return the list of frequency distributions that this ``ProbDist`` is based on. + + :rtype: list(FreqDist) + """ + return self._freqdists + + def samples(self): + # [xx] nb: this is not too efficient + return set(sum((list(fd) for fd in self._freqdists), [])) + + def prob(self, sample): + # Find the average probability estimate returned by each + # heldout distribution. + prob = 0.0 + for heldout_probdist in self._heldout_probdists: + prob += heldout_probdist.prob(sample) + return prob / len(self._heldout_probdists) + + def discount(self): + raise NotImplementedError() + + def __repr__(self): + """ + Return a string representation of this ``ProbDist``. + + :rtype: str + """ + return "" % len(self._freqdists) + + +class WittenBellProbDist(ProbDistI): + """ + The Witten-Bell estimate of a probability distribution. This distribution + allocates uniform probability mass to as yet unseen events by using the + number of events that have only been seen once. The probability mass + reserved for unseen events is equal to *T / (N + T)* + where *T* is the number of observed event types and *N* is the total + number of observed events. This equates to the maximum likelihood estimate + of a new type event occurring. The remaining probability mass is discounted + such that all probability estimates sum to one, yielding: + + - *p = T / Z (N + T)*, if count = 0 + - *p = c / (N + T)*, otherwise + """ + + def __init__(self, freqdist, bins=None): + """ + Creates a distribution of Witten-Bell probability estimates. This + distribution allocates uniform probability mass to as yet unseen + events by using the number of events that have only been seen once. The + probability mass reserved for unseen events is equal to *T / (N + T)* + where *T* is the number of observed event types and *N* is the total + number of observed events. This equates to the maximum likelihood + estimate of a new type event occurring. The remaining probability mass + is discounted such that all probability estimates sum to one, + yielding: + + - *p = T / Z (N + T)*, if count = 0 + - *p = c / (N + T)*, otherwise + + The parameters *T* and *N* are taken from the ``freqdist`` parameter + (the ``B()`` and ``N()`` values). The normalizing factor *Z* is + calculated using these values along with the ``bins`` parameter. + + :param freqdist: The frequency counts upon which to base the + estimation. + :type freqdist: FreqDist + :param bins: The number of possible event types. This must be at least + as large as the number of bins in the ``freqdist``. If None, then + it's assumed to be equal to that of the ``freqdist`` + :type bins: int + """ + assert bins is None or bins >= freqdist.B(), ( + "bins parameter must not be less than %d=freqdist.B()" % freqdist.B() + ) + if bins is None: + bins = freqdist.B() + self._freqdist = freqdist + self._T = self._freqdist.B() + self._Z = bins - self._freqdist.B() + self._N = self._freqdist.N() + # self._P0 is P(0), precalculated for efficiency: + if self._N == 0: + # if freqdist is empty, we approximate P(0) by a UniformProbDist: + self._P0 = 1.0 / self._Z + else: + self._P0 = self._T / (self._Z * (self._N + self._T)) + + def prob(self, sample): + # inherit docs from ProbDistI + c = self._freqdist[sample] + return c / (self._N + self._T) if c != 0 else self._P0 + + def max(self): + return self._freqdist.max() + + def samples(self): + return self._freqdist.keys() + + def freqdist(self): + return self._freqdist + + def discount(self): + raise NotImplementedError() + + def __repr__(self): + """ + Return a string representation of this ``ProbDist``. + + :rtype: str + """ + return "" % self._freqdist.N() + + +##////////////////////////////////////////////////////// +## Good-Turing Probability Distributions +##////////////////////////////////////////////////////// + +# Good-Turing frequency estimation was contributed by Alan Turing and +# his statistical assistant I.J. Good, during their collaboration in +# the WWII. It is a statistical technique for predicting the +# probability of occurrence of objects belonging to an unknown number +# of species, given past observations of such objects and their +# species. (In drawing balls from an urn, the 'objects' would be balls +# and the 'species' would be the distinct colors of the balls (finite +# but unknown in number). +# +# Good-Turing method calculates the probability mass to assign to +# events with zero or low counts based on the number of events with +# higher counts. It does so by using the adjusted count *c\**: +# +# - *c\* = (c + 1) N(c + 1) / N(c)* for c >= 1 +# - *things with frequency zero in training* = N(1) for c == 0 +# +# where *c* is the original count, *N(i)* is the number of event types +# observed with count *i*. We can think the count of unseen as the count +# of frequency one (see Jurafsky & Martin 2nd Edition, p101). +# +# This method is problematic because the situation ``N(c+1) == 0`` +# is quite common in the original Good-Turing estimation; smoothing or +# interpolation of *N(i)* values is essential in practice. +# +# Bill Gale and Geoffrey Sampson present a simple and effective approach, +# Simple Good-Turing. As a smoothing curve they simply use a power curve: +# +# Nr = a*r^b (with b < -1 to give the appropriate hyperbolic +# relationship) +# +# They estimate a and b by simple linear regression technique on the +# logarithmic form of the equation: +# +# log Nr = a + b*log(r) +# +# However, they suggest that such a simple curve is probably only +# appropriate for high values of r. For low values of r, they use the +# measured Nr directly. (see M&S, p.213) +# +# Gale and Sampson propose to use r while the difference between r and +# r* is 1.96 greater than the standard deviation, and switch to r* if +# it is less or equal: +# +# |r - r*| > 1.96 * sqrt((r + 1)^2 (Nr+1 / Nr^2) (1 + Nr+1 / Nr)) +# +# The 1.96 coefficient correspond to a 0.05 significance criterion, +# some implementations can use a coefficient of 1.65 for a 0.1 +# significance criterion. +# + +##////////////////////////////////////////////////////// +## Simple Good-Turing Probablity Distributions +##////////////////////////////////////////////////////// + + +class SimpleGoodTuringProbDist(ProbDistI): + """ + SimpleGoodTuring ProbDist approximates from frequency to frequency of + frequency into a linear line under log space by linear regression. + Details of Simple Good-Turing algorithm can be found in: + + - Good Turing smoothing without tears" (Gale & Sampson 1995), + Journal of Quantitative Linguistics, vol. 2 pp. 217-237. + - "Speech and Language Processing (Jurafsky & Martin), + 2nd Edition, Chapter 4.5 p103 (log(Nc) = a + b*log(c)) + - https://www.grsampson.net/RGoodTur.html + + Given a set of pair (xi, yi), where the xi denotes the frequency and + yi denotes the frequency of frequency, we want to minimize their + square variation. E(x) and E(y) represent the mean of xi and yi. + + - slope: b = sigma ((xi-E(x)(yi-E(y))) / sigma ((xi-E(x))(xi-E(x))) + - intercept: a = E(y) - b.E(x) + """ + + SUM_TO_ONE = False + + def __init__(self, freqdist, bins=None): + """ + :param freqdist: The frequency counts upon which to base the + estimation. + :type freqdist: FreqDist + :param bins: The number of possible event types. This must be + larger than the number of bins in the ``freqdist``. If None, + then it's assumed to be equal to ``freqdist``.B() + 1 + :type bins: int + """ + assert ( + bins is None or bins > freqdist.B() + ), "bins parameter must not be less than %d=freqdist.B()+1" % (freqdist.B() + 1) + if bins is None: + bins = freqdist.B() + 1 + self._freqdist = freqdist + self._bins = bins + r, nr = self._r_Nr() + self.find_best_fit(r, nr) + self._switch(r, nr) + self._renormalize(r, nr) + + def _r_Nr_non_zero(self): + r_Nr = self._freqdist.r_Nr() + del r_Nr[0] + return r_Nr + + def _r_Nr(self): + """ + Split the frequency distribution in two list (r, Nr), where Nr(r) > 0 + """ + nonzero = self._r_Nr_non_zero() + + if not nonzero: + return [], [] + return zip(*sorted(nonzero.items())) + + def find_best_fit(self, r, nr): + """ + Use simple linear regression to tune parameters self._slope and + self._intercept in the log-log space based on count and Nr(count) + (Work in log space to avoid floating point underflow.) + """ + # For higher sample frequencies the data points becomes horizontal + # along line Nr=1. To create a more evident linear model in log-log + # space, we average positive Nr values with the surrounding zero + # values. (Church and Gale, 1991) + + if not r or not nr: + # Empty r or nr? + return + + zr = [] + for j in range(len(r)): + i = r[j - 1] if j > 0 else 0 + k = 2 * r[j] - i if j == len(r) - 1 else r[j + 1] + zr_ = 2.0 * nr[j] / (k - i) + zr.append(zr_) + + log_r = [math.log(i) for i in r] + log_zr = [math.log(i) for i in zr] + + xy_cov = x_var = 0.0 + x_mean = sum(log_r) / len(log_r) + y_mean = sum(log_zr) / len(log_zr) + for x, y in zip(log_r, log_zr): + xy_cov += (x - x_mean) * (y - y_mean) + x_var += (x - x_mean) ** 2 + self._slope = xy_cov / x_var if x_var != 0 else 0.0 + if self._slope >= -1: + warnings.warn( + "SimpleGoodTuring did not find a proper best fit " + "line for smoothing probabilities of occurrences. " + "The probability estimates are likely to be " + "unreliable." + ) + self._intercept = y_mean - self._slope * x_mean + + def _switch(self, r, nr): + """ + Calculate the r frontier where we must switch from Nr to Sr + when estimating E[Nr]. + """ + for i, r_ in enumerate(r): + if len(r) == i + 1 or r[i + 1] != r_ + 1: + # We are at the end of r, or there is a gap in r + self._switch_at = r_ + break + + Sr = self.smoothedNr + smooth_r_star = (r_ + 1) * Sr(r_ + 1) / Sr(r_) + unsmooth_r_star = (r_ + 1) * nr[i + 1] / nr[i] + + std = math.sqrt(self._variance(r_, nr[i], nr[i + 1])) + if abs(unsmooth_r_star - smooth_r_star) <= 1.96 * std: + self._switch_at = r_ + break + + def _variance(self, r, nr, nr_1): + r = float(r) + nr = float(nr) + nr_1 = float(nr_1) + return (r + 1.0) ** 2 * (nr_1 / nr**2) * (1.0 + nr_1 / nr) + + def _renormalize(self, r, nr): + """ + It is necessary to renormalize all the probability estimates to + ensure a proper probability distribution results. This can be done + by keeping the estimate of the probability mass for unseen items as + N(1)/N and renormalizing all the estimates for previously seen items + (as Gale and Sampson (1995) propose). (See M&S P.213, 1999) + """ + prob_cov = 0.0 + for r_, nr_ in zip(r, nr): + prob_cov += nr_ * self._prob_measure(r_) + if prob_cov: + self._renormal = (1 - self._prob_measure(0)) / prob_cov + + def smoothedNr(self, r): + """ + Return the number of samples with count r. + + :param r: The amount of frequency. + :type r: int + :rtype: float + """ + + # Nr = a*r^b (with b < -1 to give the appropriate hyperbolic + # relationship) + # Estimate a and b by simple linear regression technique on + # the logarithmic form of the equation: log Nr = a + b*log(r) + + return math.exp(self._intercept + self._slope * math.log(r)) + + def prob(self, sample): + """ + Return the sample's probability. + + :param sample: sample of the event + :type sample: str + :rtype: float + """ + count = self._freqdist[sample] + p = self._prob_measure(count) + if count == 0: + if self._bins == self._freqdist.B(): + p = 0.0 + else: + p = p / (self._bins - self._freqdist.B()) + else: + p = p * self._renormal + return p + + def _prob_measure(self, count): + if count == 0 and self._freqdist.N() == 0: + return 1.0 + elif count == 0 and self._freqdist.N() != 0: + return self._freqdist.Nr(1) / self._freqdist.N() + + if self._switch_at > count: + Er_1 = self._freqdist.Nr(count + 1) + Er = self._freqdist.Nr(count) + else: + Er_1 = self.smoothedNr(count + 1) + Er = self.smoothedNr(count) + + r_star = (count + 1) * Er_1 / Er + return r_star / self._freqdist.N() + + def check(self): + prob_sum = 0.0 + for i in range(0, len(self._Nr)): + prob_sum += self._Nr[i] * self._prob_measure(i) / self._renormal + print("Probability Sum:", prob_sum) + # assert prob_sum != 1.0, "probability sum should be one!" + + def discount(self): + """ + This function returns the total mass of probability transfers from the + seen samples to the unseen samples. + """ + return self.smoothedNr(1) / self._freqdist.N() + + def max(self): + return self._freqdist.max() + + def samples(self): + return self._freqdist.keys() + + def freqdist(self): + return self._freqdist + + def __repr__(self): + """ + Return a string representation of this ``ProbDist``. + + :rtype: str + """ + return "" % self._freqdist.N() + + +class MutableProbDist(ProbDistI): + """ + An mutable probdist where the probabilities may be easily modified. This + simply copies an existing probdist, storing the probability values in a + mutable dictionary and providing an update method. + """ + + def __init__(self, prob_dist, samples, store_logs=True): + """ + Creates the mutable probdist based on the given prob_dist and using + the list of samples given. These values are stored as log + probabilities if the store_logs flag is set. + + :param prob_dist: the distribution from which to garner the + probabilities + :type prob_dist: ProbDist + :param samples: the complete set of samples + :type samples: sequence of any + :param store_logs: whether to store the probabilities as logarithms + :type store_logs: bool + """ + self._samples = samples + self._sample_dict = {samples[i]: i for i in range(len(samples))} + self._data = array.array("d", [0.0]) * len(samples) + for i in range(len(samples)): + if store_logs: + self._data[i] = prob_dist.logprob(samples[i]) + else: + self._data[i] = prob_dist.prob(samples[i]) + self._logs = store_logs + + def max(self): + # inherit documentation + return max((p, v) for (v, p) in self._sample_dict.items())[1] + + def samples(self): + # inherit documentation + return self._samples + + def prob(self, sample): + # inherit documentation + i = self._sample_dict.get(sample) + if i is None: + return 0.0 + return 2 ** (self._data[i]) if self._logs else self._data[i] + + def logprob(self, sample): + # inherit documentation + i = self._sample_dict.get(sample) + if i is None: + return float("-inf") + return self._data[i] if self._logs else math.log(self._data[i], 2) + + def update(self, sample, prob, log=True): + """ + Update the probability for the given sample. This may cause the object + to stop being the valid probability distribution - the user must + ensure that they update the sample probabilities such that all samples + have probabilities between 0 and 1 and that all probabilities sum to + one. + + :param sample: the sample for which to update the probability + :type sample: any + :param prob: the new probability + :type prob: float + :param log: is the probability already logged + :type log: bool + """ + i = self._sample_dict.get(sample) + assert i is not None + if self._logs: + self._data[i] = prob if log else math.log(prob, 2) + else: + self._data[i] = 2 ** (prob) if log else prob + + +##///////////////////////////////////////////////////// +## Kneser-Ney Probability Distribution +##////////////////////////////////////////////////////// + +# This method for calculating probabilities was introduced in 1995 by Reinhard +# Kneser and Hermann Ney. It was meant to improve the accuracy of language +# models that use backing-off to deal with sparse data. The authors propose two +# ways of doing so: a marginal distribution constraint on the back-off +# distribution and a leave-one-out distribution. For a start, the first one is +# implemented as a class below. +# +# The idea behind a back-off n-gram model is that we have a series of +# frequency distributions for our n-grams so that in case we have not seen a +# given n-gram during training (and as a result have a 0 probability for it) we +# can 'back off' (hence the name!) and try testing whether we've seen the +# n-1-gram part of the n-gram in training. +# +# The novelty of Kneser and Ney's approach was that they decided to fiddle +# around with the way this latter, backed off probability was being calculated +# whereas their peers seemed to focus on the primary probability. +# +# The implementation below uses one of the techniques described in their paper +# titled "Improved backing-off for n-gram language modeling." In the same paper +# another technique is introduced to attempt to smooth the back-off +# distribution as well as the primary one. There is also a much-cited +# modification of this method proposed by Chen and Goodman. +# +# In order for the implementation of Kneser-Ney to be more efficient, some +# changes have been made to the original algorithm. Namely, the calculation of +# the normalizing function gamma has been significantly simplified and +# combined slightly differently with beta. None of these changes affect the +# nature of the algorithm, but instead aim to cut out unnecessary calculations +# and take advantage of storing and retrieving information in dictionaries +# where possible. + + +class KneserNeyProbDist(ProbDistI): + """ + Kneser-Ney estimate of a probability distribution. This is a version of + back-off that counts how likely an n-gram is provided the n-1-gram had + been seen in training. Extends the ProbDistI interface, requires a trigram + FreqDist instance to train on. Optionally, a different from default discount + value can be specified. The default discount is set to 0.75. + + """ + + def __init__(self, freqdist, bins=None, discount=0.75): + """ + :param freqdist: The trigram frequency distribution upon which to base + the estimation + :type freqdist: FreqDist + :param bins: Included for compatibility with nltk.tag.hmm + :type bins: int or float + :param discount: The discount applied when retrieving counts of + trigrams + :type discount: float (preferred, but can be set to int) + """ + + if not bins: + self._bins = freqdist.B() + else: + self._bins = bins + self._D = discount + + # cache for probability calculation + self._cache = {} + + # internal bigram and trigram frequency distributions + self._bigrams = defaultdict(int) + self._trigrams = freqdist + + # helper dictionaries used to calculate probabilities + self._wordtypes_after = defaultdict(float) + self._trigrams_contain = defaultdict(float) + self._wordtypes_before = defaultdict(float) + for w0, w1, w2 in freqdist: + self._bigrams[(w0, w1)] += freqdist[(w0, w1, w2)] + self._wordtypes_after[(w0, w1)] += 1 + self._trigrams_contain[w1] += 1 + self._wordtypes_before[(w1, w2)] += 1 + + def prob(self, trigram): + # sample must be a triple + if len(trigram) != 3: + raise ValueError("Expected an iterable with 3 members.") + trigram = tuple(trigram) + w0, w1, w2 = trigram + + if trigram in self._cache: + return self._cache[trigram] + else: + # if the sample trigram was seen during training + if trigram in self._trigrams: + prob = (self._trigrams[trigram] - self.discount()) / self._bigrams[ + (w0, w1) + ] + + # else if the 'rougher' environment was seen during training + elif (w0, w1) in self._bigrams and (w1, w2) in self._wordtypes_before: + aftr = self._wordtypes_after[(w0, w1)] + bfr = self._wordtypes_before[(w1, w2)] + + # the probability left over from alphas + leftover_prob = (aftr * self.discount()) / self._bigrams[(w0, w1)] + + # the beta (including normalization) + beta = bfr / (self._trigrams_contain[w1] - aftr) + + prob = leftover_prob * beta + + # else the sample was completely unseen during training + else: + prob = 0.0 + + self._cache[trigram] = prob + return prob + + def discount(self): + """ + Return the value by which counts are discounted. By default set to 0.75. + + :rtype: float + """ + return self._D + + def set_discount(self, discount): + """ + Set the value by which counts are discounted to the value of discount. + + :param discount: the new value to discount counts by + :type discount: float (preferred, but int possible) + :rtype: None + """ + self._D = discount + + def samples(self): + return self._trigrams.keys() + + def max(self): + return self._trigrams.max() + + def __repr__(self): + """ + Return a string representation of this ProbDist + + :rtype: str + """ + return f">> from nltk.probability import ConditionalFreqDist + >>> from nltk.tokenize import word_tokenize + >>> sent = "the the the dog dog some other words that we do not care about" + >>> cfdist = ConditionalFreqDist() + >>> for word in word_tokenize(sent): + ... condition = len(word) + ... cfdist[condition][word] += 1 + + An equivalent way to do this is with the initializer: + + >>> cfdist = ConditionalFreqDist((len(word), word) for word in word_tokenize(sent)) + + The frequency distribution for each condition is accessed using + the indexing operator: + + >>> cfdist[3] + FreqDist({'the': 3, 'dog': 2, 'not': 1}) + >>> cfdist[3].freq('the') + 0.5 + >>> cfdist[3]['dog'] + 2 + + When the indexing operator is used to access the frequency + distribution for a condition that has not been accessed before, + ``ConditionalFreqDist`` creates a new empty FreqDist for that + condition. + + """ + + def __init__(self, cond_samples=None): + """ + Construct a new empty conditional frequency distribution. In + particular, the count for every sample, under every condition, + is zero. + + :param cond_samples: The samples to initialize the conditional + frequency distribution with + :type cond_samples: Sequence of (condition, sample) tuples + """ + defaultdict.__init__(self, FreqDist) + + if cond_samples: + for cond, sample in cond_samples: + self[cond][sample] += 1 + + def __reduce__(self): + kv_pairs = ((cond, self[cond]) for cond in self.conditions()) + return (self.__class__, (), None, None, kv_pairs) + + def conditions(self): + """ + Return a list of the conditions that have been accessed for + this ``ConditionalFreqDist``. Use the indexing operator to + access the frequency distribution for a given condition. + Note that the frequency distributions for some conditions + may contain zero sample outcomes. + + :rtype: list + """ + return list(self.keys()) + + def N(self): + """ + Return the total number of sample outcomes that have been + recorded by this ``ConditionalFreqDist``. + + :rtype: int + """ + return sum(fdist.N() for fdist in self.values()) + + def plot( + self, + *args, + samples=None, + title="", + cumulative=False, + percents=False, + conditions=None, + show=False, + **kwargs, + ): + """ + Plot the given samples from the conditional frequency distribution. + For a cumulative plot, specify cumulative=True. Additional ``*args`` and + ``**kwargs`` are passed to matplotlib's plot function. + (Requires Matplotlib to be installed.) + + :param samples: The samples to plot + :type samples: list + :param title: The title for the graph + :type title: str + :param cumulative: Whether the plot is cumulative. (default = False) + :type cumulative: bool + :param percents: Whether the plot uses percents instead of counts. (default = False) + :type percents: bool + :param conditions: The conditions to plot (default is all) + :type conditions: list + :param show: Whether to show the plot, or only return the ax. + :type show: bool + """ + try: + import matplotlib.pyplot as plt # import statement fix + except ImportError as e: + raise ValueError( + "The plot function requires matplotlib to be installed." + "See https://matplotlib.org/" + ) from e + + if not conditions: + conditions = self.conditions() + else: + conditions = [c for c in conditions if c in self] + if not samples: + samples = sorted({v for c in conditions for v in self[c]}) + if "linewidth" not in kwargs: + kwargs["linewidth"] = 2 + ax = plt.gca() + if conditions: + freqs = [] + for condition in conditions: + if cumulative: + # freqs should be a list of list where each sub list will be a frequency of a condition + freq = list(self[condition]._cumulative_frequencies(samples)) + else: + freq = [self[condition][sample] for sample in samples] + + if percents: + freq = [f / self[condition].N() * 100 for f in freq] + + freqs.append(freq) + + if cumulative: + ylabel = "Cumulative " + legend_loc = "lower right" + else: + ylabel = "" + legend_loc = "upper right" + + if percents: + ylabel += "Percents" + else: + ylabel += "Counts" + + i = 0 + for freq in freqs: + kwargs["label"] = conditions[i] # label for each condition + i += 1 + ax.plot(freq, *args, **kwargs) + ax.legend(loc=legend_loc) + ax.grid(True, color="silver") + ax.set_xticks(range(len(samples))) + ax.set_xticklabels([str(s) for s in samples], rotation=90) + if title: + ax.set_title(title) + ax.set_xlabel("Samples") + ax.set_ylabel(ylabel) + + if show: + plt.show() + + return ax + + def tabulate(self, *args, **kwargs): + """ + Tabulate the given samples from the conditional frequency distribution. + + :param samples: The samples to plot + :type samples: list + :param conditions: The conditions to plot (default is all) + :type conditions: list + :param cumulative: A flag to specify whether the freqs are cumulative (default = False) + :type title: bool + """ + + cumulative = _get_kwarg(kwargs, "cumulative", False) + conditions = _get_kwarg(kwargs, "conditions", sorted(self.conditions())) + samples = _get_kwarg( + kwargs, + "samples", + sorted({v for c in conditions if c in self for v in self[c]}), + ) # this computation could be wasted + + width = max(len("%s" % s) for s in samples) + freqs = dict() + for c in conditions: + if cumulative: + freqs[c] = list(self[c]._cumulative_frequencies(samples)) + else: + freqs[c] = [self[c][sample] for sample in samples] + width = max(width, max(len("%d" % f) for f in freqs[c])) + + condition_size = max(len("%s" % c) for c in conditions) + print(" " * condition_size, end=" ") + for s in samples: + print("%*s" % (width, s), end=" ") + print() + for c in conditions: + print("%*s" % (condition_size, c), end=" ") + for f in freqs[c]: + print("%*d" % (width, f), end=" ") + print() + + # Mathematical operators + + def __add__(self, other): + """ + Add counts from two ConditionalFreqDists. + """ + if not isinstance(other, ConditionalFreqDist): + return NotImplemented + result = self.copy() + for cond in other.conditions(): + result[cond] += other[cond] + return result + + def __sub__(self, other): + """ + Subtract count, but keep only results with positive counts. + """ + if not isinstance(other, ConditionalFreqDist): + return NotImplemented + result = self.copy() + for cond in other.conditions(): + result[cond] -= other[cond] + if not result[cond]: + del result[cond] + return result + + def __or__(self, other): + """ + Union is the maximum of value in either of the input counters. + """ + if not isinstance(other, ConditionalFreqDist): + return NotImplemented + result = self.copy() + for cond in other.conditions(): + result[cond] |= other[cond] + return result + + def __and__(self, other): + """ + Intersection is the minimum of corresponding counts. + """ + if not isinstance(other, ConditionalFreqDist): + return NotImplemented + result = ConditionalFreqDist() + for cond in self.conditions(): + newfreqdist = self[cond] & other[cond] + if newfreqdist: + result[cond] = newfreqdist + return result + + # @total_ordering doesn't work here, since the class inherits from a builtin class + def __le__(self, other): + if not isinstance(other, ConditionalFreqDist): + raise_unorderable_types("<=", self, other) + return set(self.conditions()).issubset(other.conditions()) and all( + self[c] <= other[c] for c in self.conditions() + ) + + def __lt__(self, other): + if not isinstance(other, ConditionalFreqDist): + raise_unorderable_types("<", self, other) + return self <= other and self != other + + def __ge__(self, other): + if not isinstance(other, ConditionalFreqDist): + raise_unorderable_types(">=", self, other) + return other <= self + + def __gt__(self, other): + if not isinstance(other, ConditionalFreqDist): + raise_unorderable_types(">", self, other) + return other < self + + def deepcopy(self): + from copy import deepcopy + + return deepcopy(self) + + copy = deepcopy + + def __repr__(self): + """ + Return a string representation of this ``ConditionalFreqDist``. + + :rtype: str + """ + return "" % len(self) + + +class ConditionalProbDistI(dict, metaclass=ABCMeta): + """ + A collection of probability distributions for a single experiment + run under different conditions. Conditional probability + distributions are used to estimate the likelihood of each sample, + given the condition under which the experiment was run. For + example, a conditional probability distribution could be used to + estimate the probability of each word type in a document, given + the length of the word type. Formally, a conditional probability + distribution can be defined as a function that maps from each + condition to the ``ProbDist`` for the experiment under that + condition. + """ + + @abstractmethod + def __init__(self): + """ + Classes inheriting from ConditionalProbDistI should implement __init__. + """ + + def conditions(self): + """ + Return a list of the conditions that are represented by + this ``ConditionalProbDist``. Use the indexing operator to + access the probability distribution for a given condition. + + :rtype: list + """ + return list(self.keys()) + + def __repr__(self): + """ + Return a string representation of this ``ConditionalProbDist``. + + :rtype: str + """ + return "<%s with %d conditions>" % (type(self).__name__, len(self)) + + +class ConditionalProbDist(ConditionalProbDistI): + """ + A conditional probability distribution modeling the experiments + that were used to generate a conditional frequency distribution. + A ConditionalProbDist is constructed from a + ``ConditionalFreqDist`` and a ``ProbDist`` factory: + + - The ``ConditionalFreqDist`` specifies the frequency + distribution for each condition. + - The ``ProbDist`` factory is a function that takes a + condition's frequency distribution, and returns its + probability distribution. A ``ProbDist`` class's name (such as + ``MLEProbDist`` or ``HeldoutProbDist``) can be used to specify + that class's constructor. + + The first argument to the ``ProbDist`` factory is the frequency + distribution that it should model; and the remaining arguments are + specified by the ``factory_args`` parameter to the + ``ConditionalProbDist`` constructor. For example, the following + code constructs a ``ConditionalProbDist``, where the probability + distribution for each condition is an ``ELEProbDist`` with 10 bins: + + >>> from nltk.corpus import brown + >>> from nltk.probability import ConditionalFreqDist + >>> from nltk.probability import ConditionalProbDist, ELEProbDist + >>> cfdist = ConditionalFreqDist(brown.tagged_words()[:5000]) + >>> cpdist = ConditionalProbDist(cfdist, ELEProbDist, 10) + >>> cpdist['passed'].max() + 'VBD' + >>> cpdist['passed'].prob('VBD') #doctest: +ELLIPSIS + 0.423... + + """ + + def __init__(self, cfdist, probdist_factory, *factory_args, **factory_kw_args): + """ + Construct a new conditional probability distribution, based on + the given conditional frequency distribution and ``ProbDist`` + factory. + + :type cfdist: ConditionalFreqDist + :param cfdist: The ``ConditionalFreqDist`` specifying the + frequency distribution for each condition. + :type probdist_factory: class or function + :param probdist_factory: The function or class that maps + a condition's frequency distribution to its probability + distribution. The function is called with the frequency + distribution as its first argument, + ``factory_args`` as its remaining arguments, and + ``factory_kw_args`` as keyword arguments. + :type factory_args: (any) + :param factory_args: Extra arguments for ``probdist_factory``. + These arguments are usually used to specify extra + properties for the probability distributions of individual + conditions, such as the number of bins they contain. + :type factory_kw_args: (any) + :param factory_kw_args: Extra keyword arguments for ``probdist_factory``. + """ + self._probdist_factory = probdist_factory + self._factory_args = factory_args + self._factory_kw_args = factory_kw_args + + for condition in cfdist: + self[condition] = probdist_factory( + cfdist[condition], *factory_args, **factory_kw_args + ) + + def __missing__(self, key): + self[key] = self._probdist_factory( + FreqDist(), *self._factory_args, **self._factory_kw_args + ) + return self[key] + + +class DictionaryConditionalProbDist(ConditionalProbDistI): + """ + An alternative ConditionalProbDist that simply wraps a dictionary of + ProbDists rather than creating these from FreqDists. + """ + + def __init__(self, probdist_dict): + """ + :param probdist_dict: a dictionary containing the probdists indexed + by the conditions + :type probdist_dict: dict any -> probdist + """ + self.update(probdist_dict) + + def __missing__(self, key): + self[key] = DictionaryProbDist() + return self[key] + + +##////////////////////////////////////////////////////// +## Adding in log-space. +##////////////////////////////////////////////////////// + +# If the difference is bigger than this, then just take the bigger one: +_ADD_LOGS_MAX_DIFF = math.log(1e-30, 2) + + +def add_logs(logx, logy): + """ + Given two numbers ``logx`` = *log(x)* and ``logy`` = *log(y)*, return + *log(x+y)*. Conceptually, this is the same as returning + ``log(2**(logx)+2**(logy))``, but the actual implementation + avoids overflow errors that could result from direct computation. + """ + if logx < logy + _ADD_LOGS_MAX_DIFF: + return logy + if logy < logx + _ADD_LOGS_MAX_DIFF: + return logx + base = min(logx, logy) + return base + math.log(2 ** (logx - base) + 2 ** (logy - base), 2) + + +def sum_logs(logs): + return reduce(add_logs, logs[1:], logs[0]) if len(logs) != 0 else _NINF + + +##////////////////////////////////////////////////////// +## Probabilistic Mix-in +##////////////////////////////////////////////////////// + + +class ProbabilisticMixIn: + """ + A mix-in class to associate probabilities with other classes + (trees, rules, etc.). To use the ``ProbabilisticMixIn`` class, + define a new class that derives from an existing class and from + ProbabilisticMixIn. You will need to define a new constructor for + the new class, which explicitly calls the constructors of both its + parent classes. For example: + + >>> from nltk.probability import ProbabilisticMixIn + >>> class A: + ... def __init__(self, x, y): self.data = (x,y) + ... + >>> class ProbabilisticA(A, ProbabilisticMixIn): + ... def __init__(self, x, y, **prob_kwarg): + ... A.__init__(self, x, y) + ... ProbabilisticMixIn.__init__(self, **prob_kwarg) + + See the documentation for the ProbabilisticMixIn + ``constructor<__init__>`` for information about the arguments it + expects. + + You should generally also redefine the string representation + methods, the comparison methods, and the hashing method. + """ + + def __init__(self, **kwargs): + """ + Initialize this object's probability. This initializer should + be called by subclass constructors. ``prob`` should generally be + the first argument for those constructors. + + :param prob: The probability associated with the object. + :type prob: float + :param logprob: The log of the probability associated with + the object. + :type logprob: float + """ + if "prob" in kwargs: + if "logprob" in kwargs: + raise TypeError("Must specify either prob or logprob " "(not both)") + else: + ProbabilisticMixIn.set_prob(self, kwargs["prob"]) + elif "logprob" in kwargs: + ProbabilisticMixIn.set_logprob(self, kwargs["logprob"]) + else: + self.__prob = self.__logprob = None + + def set_prob(self, prob): + """ + Set the probability associated with this object to ``prob``. + + :param prob: The new probability + :type prob: float + """ + self.__prob = prob + self.__logprob = None + + def set_logprob(self, logprob): + """ + Set the log probability associated with this object to + ``logprob``. I.e., set the probability associated with this + object to ``2**(logprob)``. + + :param logprob: The new log probability + :type logprob: float + """ + self.__logprob = logprob + self.__prob = None + + def prob(self): + """ + Return the probability associated with this object. + + :rtype: float + """ + if self.__prob is None: + if self.__logprob is None: + return None + self.__prob = 2 ** (self.__logprob) + return self.__prob + + def logprob(self): + """ + Return ``log(p)``, where ``p`` is the probability associated + with this object. + + :rtype: float + """ + if self.__logprob is None: + if self.__prob is None: + return None + self.__logprob = math.log(self.__prob, 2) + return self.__logprob + + +class ImmutableProbabilisticMixIn(ProbabilisticMixIn): + def set_prob(self, prob): + raise ValueError("%s is immutable" % self.__class__.__name__) + + def set_logprob(self, prob): + raise ValueError("%s is immutable" % self.__class__.__name__) + + +## Helper function for processing keyword arguments + + +def _get_kwarg(kwargs, key, default): + if key in kwargs: + arg = kwargs[key] + del kwargs[key] + else: + arg = default + return arg + + +##////////////////////////////////////////////////////// +## Demonstration +##////////////////////////////////////////////////////// + + +def _create_rand_fdist(numsamples, numoutcomes): + """ + Create a new frequency distribution, with random samples. The + samples are numbers from 1 to ``numsamples``, and are generated by + summing two numbers, each of which has a uniform distribution. + """ + + fdist = FreqDist() + for x in range(numoutcomes): + y = random.randint(1, (1 + numsamples) // 2) + random.randint( + 0, numsamples // 2 + ) + fdist[y] += 1 + return fdist + + +def _create_sum_pdist(numsamples): + """ + Return the true probability distribution for the experiment + ``_create_rand_fdist(numsamples, x)``. + """ + fdist = FreqDist() + for x in range(1, (1 + numsamples) // 2 + 1): + for y in range(0, numsamples // 2 + 1): + fdist[x + y] += 1 + return MLEProbDist(fdist) + + +def demo(numsamples=6, numoutcomes=500): + """ + A demonstration of frequency distributions and probability + distributions. This demonstration creates three frequency + distributions with, and uses them to sample a random process with + ``numsamples`` samples. Each frequency distribution is sampled + ``numoutcomes`` times. These three frequency distributions are + then used to build six probability distributions. Finally, the + probability estimates of these distributions are compared to the + actual probability of each sample. + + :type numsamples: int + :param numsamples: The number of samples to use in each demo + frequency distributions. + :type numoutcomes: int + :param numoutcomes: The total number of outcomes for each + demo frequency distribution. These outcomes are divided into + ``numsamples`` bins. + :rtype: None + """ + + # Randomly sample a stochastic process three times. + fdist1 = _create_rand_fdist(numsamples, numoutcomes) + fdist2 = _create_rand_fdist(numsamples, numoutcomes) + fdist3 = _create_rand_fdist(numsamples, numoutcomes) + + # Use our samples to create probability distributions. + pdists = [ + MLEProbDist(fdist1), + LidstoneProbDist(fdist1, 0.5, numsamples), + HeldoutProbDist(fdist1, fdist2, numsamples), + HeldoutProbDist(fdist2, fdist1, numsamples), + CrossValidationProbDist([fdist1, fdist2, fdist3], numsamples), + SimpleGoodTuringProbDist(fdist1), + SimpleGoodTuringProbDist(fdist1, 7), + _create_sum_pdist(numsamples), + ] + + # Find the probability of each sample. + vals = [] + for n in range(1, numsamples + 1): + vals.append(tuple([n, fdist1.freq(n)] + [pdist.prob(n) for pdist in pdists])) + + # Print the results in a formatted table. + print( + "%d samples (1-%d); %d outcomes were sampled for each FreqDist" + % (numsamples, numsamples, numoutcomes) + ) + print("=" * 9 * (len(pdists) + 2)) + FORMATSTR = " FreqDist " + "%8s " * (len(pdists) - 1) + "| Actual" + print(FORMATSTR % tuple(repr(pdist)[1:9] for pdist in pdists[:-1])) + print("-" * 9 * (len(pdists) + 2)) + FORMATSTR = "%3d %8.6f " + "%8.6f " * (len(pdists) - 1) + "| %8.6f" + for val in vals: + print(FORMATSTR % val) + + # Print the totals for each column (should all be 1.0) + zvals = list(zip(*vals)) + sums = [sum(val) for val in zvals[1:]] + print("-" * 9 * (len(pdists) + 2)) + FORMATSTR = "Total " + "%8.6f " * (len(pdists)) + "| %8.6f" + print(FORMATSTR % tuple(sums)) + print("=" * 9 * (len(pdists) + 2)) + + # Display the distributions themselves, if they're short enough. + if len("%s" % fdist1) < 70: + print(" fdist1: %s" % fdist1) + print(" fdist2: %s" % fdist2) + print(" fdist3: %s" % fdist3) + print() + + print("Generating:") + for pdist in pdists: + fdist = FreqDist(pdist.generate() for i in range(5000)) + print("{:>20} {}".format(pdist.__class__.__name__[:20], ("%s" % fdist)[:55])) + print() + + +def gt_demo(): + from nltk import corpus + + emma_words = corpus.gutenberg.words("austen-emma.txt") + fd = FreqDist(emma_words) + sgt = SimpleGoodTuringProbDist(fd) + print("{:>18} {:>8} {:>14}".format("word", "frequency", "SimpleGoodTuring")) + fd_keys_sorted = ( + key for key, value in sorted(fd.items(), key=lambda item: item[1], reverse=True) + ) + for key in fd_keys_sorted: + print("%18s %8d %14e" % (key, fd[key], sgt.prob(key))) + + +if __name__ == "__main__": + demo(6, 10) + demo(5, 5000) + gt_demo() + +__all__ = [ + "ConditionalFreqDist", + "ConditionalProbDist", + "ConditionalProbDistI", + "CrossValidationProbDist", + "DictionaryConditionalProbDist", + "DictionaryProbDist", + "ELEProbDist", + "FreqDist", + "SimpleGoodTuringProbDist", + "HeldoutProbDist", + "ImmutableProbabilisticMixIn", + "LaplaceProbDist", + "LidstoneProbDist", + "MLEProbDist", + "MutableProbDist", + "KneserNeyProbDist", + "ProbDistI", + "ProbabilisticMixIn", + "UniformProbDist", + "WittenBellProbDist", + "add_logs", + "log_likelihood", + "sum_logs", + "entropy", +] diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/tabdata.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/tabdata.py new file mode 100644 index 0000000000000000000000000000000000000000..8484d227359584e6c4ef5fd43f8d4150a18fbd10 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/tabdata.py @@ -0,0 +1,108 @@ +# Natural Language Toolkit: Encode/Decocode Data as Tab-files +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Eric Kafe +# URL: +# For license information, see LICENSE.TXT +# + + +def rm_nl(s): + if s[-1] == "\n": + return s[:-1] + return s + + +class TabEncoder: + + def list2txt(self, s): + return "\n".join(s) + + def set2txt(self, s): + return self.list2txt(list(s)) + + def tup2tab(self, tup): + return "\t".join(tup) + + def tups2tab(self, x): + return "\n".join([self.tup2tab(tup) for tup in x]) + + def dict2tab(self, d): + return self.tups2tab(d.items()) + + def ivdict2tab(self, d): + # From integer-value dictionary + return self.tups2tab([(a, str(b)) for a, b in d.items()]) + + +class TabDecoder: + + def txt2list(self, f): + return [rm_nl(x) for x in f] + + def txt2set(self, f): + return {rm_nl(x) for x in f} + + def tab2tup(self, s): + return tuple(s.split("\t")) + + def tab2tups(self, f): + return [self.tab2tup(rm_nl(x)) for x in f] + + def tab2dict(self, f): + return {a: b for a, b in self.tab2tups(f)} + + def tab2ivdict(self, f): + # To integer-value dictionary + return {a: int(b) for a, b in self.tab2tups(f)} + + +# --------------------------------------------------------------------------- +# Maxent data +# --------------------------------------------------------------------------- + + +class MaxentEncoder(TabEncoder): + + def tupdict2tab(self, d): + def rep(a, b): + if a == "wordlen": + return repr(b) + if b in [True, False, None]: + return f"repr-{b}" + return b + + return self.tups2tab( + [(a, rep(a, b), c, repr(d)) for ((a, b, c), d) in d.items()] + ) + + +class MaxentDecoder(TabDecoder): + + def tupkey2dict(self, f): + + def rep(a, b): + if a == "wordlen": + return int(b) + if b == "repr-None": + return None + if b == "repr-True": + return True + if b == "repr-False": + return False + return b + + return {(a, rep(a, b), c): int(d) for (a, b, c, d) in self.tab2tups(f)} + + +# --------------------------------------------------------------------------- +# Punkt data +# --------------------------------------------------------------------------- + + +class PunktDecoder(TabDecoder): + + def tab2intdict(self, f): + from collections import defaultdict + + return defaultdict(int, {a: int(b) for a, b in self.tab2tups(f)}) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/text.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/text.py new file mode 100644 index 0000000000000000000000000000000000000000..7530196081c047ea7742facd59ee51e76e08959e --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/text.py @@ -0,0 +1,784 @@ +# Natural Language Toolkit: Texts +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Steven Bird +# Edward Loper +# URL: +# For license information, see LICENSE.TXT + +""" +This module brings together a variety of NLTK functionality for +text analysis, and provides simple, interactive interfaces. +Functionality includes: concordancing, collocation discovery, +regular expression search over tokenized strings, and +distributional similarity. +""" + +import re +import sys +import unicodedata +from collections import Counter, defaultdict, namedtuple +from functools import reduce +from math import log + +from nltk.collocations import BigramCollocationFinder +from nltk.lm import MLE +from nltk.lm.preprocessing import padded_everygram_pipeline +from nltk.metrics import BigramAssocMeasures, f_measure +from nltk.probability import ConditionalFreqDist as CFD +from nltk.probability import FreqDist +from nltk.tokenize import sent_tokenize +from nltk.util import LazyConcatenation, cut_string, tokenwrap + +ConcordanceLine = namedtuple( + "ConcordanceLine", + ["left", "query", "right", "offset", "left_print", "right_print", "line"], +) + + +class ContextIndex: + """ + A bidirectional index between words and their 'contexts' in a text. + The context of a word is usually defined to be the words that occur + in a fixed window around the word; but other definitions may also + be used by providing a custom context function. + """ + + @staticmethod + def _default_context(tokens, i): + """One left token and one right token, normalized to lowercase""" + left = tokens[i - 1].lower() if i != 0 else "*START*" + right = tokens[i + 1].lower() if i != len(tokens) - 1 else "*END*" + return (left, right) + + def __init__(self, tokens, context_func=None, filter=None, key=lambda x: x): + self._key = key + self._tokens = tokens + if context_func: + self._context_func = context_func + else: + self._context_func = self._default_context + if filter: + tokens = [t for t in tokens if filter(t)] + self._word_to_contexts = CFD( + (self._key(w), self._context_func(tokens, i)) for i, w in enumerate(tokens) + ) + self._context_to_words = CFD( + (self._context_func(tokens, i), self._key(w)) for i, w in enumerate(tokens) + ) + + def tokens(self): + """ + :rtype: list(str) + :return: The document that this context index was + created from. + """ + return self._tokens + + def word_similarity_dict(self, word): + """ + Return a dictionary mapping from words to 'similarity scores,' + indicating how often these two words occur in the same + context. + """ + word = self._key(word) + word_contexts = set(self._word_to_contexts[word]) + + scores = {} + for w, w_contexts in self._word_to_contexts.items(): + scores[w] = f_measure(word_contexts, set(w_contexts)) + + return scores + + def similar_words(self, word, n=20): + scores = defaultdict(int) + for c in self._word_to_contexts[self._key(word)]: + for w in self._context_to_words[c]: + if w != word: + scores[w] += ( + self._context_to_words[c][word] * self._context_to_words[c][w] + ) + return sorted(scores, key=scores.get, reverse=True)[:n] + + def common_contexts(self, words, fail_on_unknown=False): + """ + Find contexts where the specified words can all appear; and + return a frequency distribution mapping each context to the + number of times that context was used. + + :param words: The words used to seed the similarity search + :type words: str + :param fail_on_unknown: If true, then raise a value error if + any of the given words do not occur at all in the index. + """ + words = [self._key(w) for w in words] + contexts = [set(self._word_to_contexts[w]) for w in words] + empty = [words[i] for i in range(len(words)) if not contexts[i]] + common = reduce(set.intersection, contexts) + if empty and fail_on_unknown: + raise ValueError("The following word(s) were not found:", " ".join(words)) + elif not common: + # nothing in common -- just return an empty freqdist. + return FreqDist() + else: + fd = FreqDist( + c for w in words for c in self._word_to_contexts[w] if c in common + ) + return fd + + +class ConcordanceIndex: + """ + An index that can be used to look up the offset locations at which + a given word occurs in a document. + """ + + def __init__(self, tokens, key=lambda x: x): + """ + Construct a new concordance index. + + :param tokens: The document (list of tokens) that this + concordance index was created from. This list can be used + to access the context of a given word occurrence. + :param key: A function that maps each token to a normalized + version that will be used as a key in the index. E.g., if + you use ``key=lambda s:s.lower()``, then the index will be + case-insensitive. + """ + self._tokens = tokens + """The document (list of tokens) that this concordance index + was created from.""" + + self._key = key + """Function mapping each token to an index key (or None).""" + + self._offsets = defaultdict(list) + """Dictionary mapping words (or keys) to lists of offset indices.""" + # Initialize the index (self._offsets) + for index, word in enumerate(tokens): + word = self._key(word) + self._offsets[word].append(index) + + def tokens(self): + """ + :rtype: list(str) + :return: The document that this concordance index was + created from. + """ + return self._tokens + + def offsets(self, word): + """ + :rtype: list(int) + :return: A list of the offset positions at which the given + word occurs. If a key function was specified for the + index, then given word's key will be looked up. + """ + word = self._key(word) + return self._offsets[word] + + def __repr__(self): + return "" % ( + len(self._tokens), + len(self._offsets), + ) + + def find_concordance(self, word, width=80): + """ + Find all concordance lines given the query word. + + Provided with a list of words, these will be found as a phrase. + """ + if isinstance(word, list): + phrase = word + else: + phrase = [word] + + phrase_str = " ".join(phrase) + phrase_len = sum(1 for char in phrase_str if not unicodedata.combining(char)) + half_width = (width - phrase_len - 2) // 2 + context = width // 4 # approx number of words of context + + # Find the instances of the word to create the ConcordanceLine + concordance_list = [] + offsets = self.offsets(phrase[0]) + for i, word in enumerate(phrase[1:]): + word_offsets = {offset - i - 1 for offset in self.offsets(word)} + offsets = sorted(word_offsets.intersection(offsets)) + if offsets: + for i in offsets: + query_word = " ".join(self._tokens[i : i + len(phrase)]) + # Find the context of query word. + left_context = self._tokens[max(0, i - context) : i] + right_context = self._tokens[i + len(phrase) : i + context] + # Create the pretty lines with the query_word in the middle. + left_print = cut_string(" ".join(left_context), -half_width).rjust( + half_width + ) + right_print = cut_string(" ".join(right_context), half_width) + # The WYSIWYG line of the concordance. + line_print = " ".join([left_print, query_word, right_print]) + # Create the ConcordanceLine + concordance_line = ConcordanceLine( + left_context, + query_word, + right_context, + i, + left_print, + right_print, + line_print, + ) + concordance_list.append(concordance_line) + return concordance_list + + def print_concordance(self, word, width=80, lines=25): + """ + Print concordance lines given the query word. + :param word: The target word or phrase (a list of strings) + :type word: str or list + :param lines: The number of lines to display (default=25) + :type lines: int + :param width: The width of each line, in characters (default=80) + :type width: int + :param save: The option to save the concordance. + :type save: bool + """ + concordance_list = self.find_concordance(word, width=width) + + if not concordance_list: + print("no matches") + else: + lines = min(lines, len(concordance_list)) + print(f"Displaying {lines} of {len(concordance_list)} matches:") + for i, concordance_line in enumerate(concordance_list[:lines]): + print(concordance_line.line) + + +class TokenSearcher: + """ + A class that makes it easier to use regular expressions to search + over tokenized strings. The tokenized string is converted to a + string where tokens are marked with angle brackets -- e.g., + ``''``. The regular expression + passed to the ``findall()`` method is modified to treat angle + brackets as non-capturing parentheses, in addition to matching the + token boundaries; and to have ``'.'`` not match the angle brackets. + """ + + def __init__(self, tokens): + self._raw = "".join("<" + w + ">" for w in tokens) + + def findall(self, regexp): + """ + Find instances of the regular expression in the text. + The text is a list of tokens, and a regexp pattern to match + a single token must be surrounded by angle brackets. E.g. + + >>> from nltk.text import TokenSearcher + >>> from nltk.book import text1, text5, text9 + >>> text5.findall("<.*><.*>") + you rule bro; telling you bro; u twizted bro + >>> text1.findall("(<.*>)") + monied; nervous; dangerous; white; white; white; pious; queer; good; + mature; white; Cape; great; wise; wise; butterless; white; fiendish; + pale; furious; better; certain; complete; dismasted; younger; brave; + brave; brave; brave + >>> text9.findall("{3,}") + thread through those; the thought that; that the thing; the thing + that; that that thing; through these than through; them that the; + through the thick; them that they; thought that the + + :param regexp: A regular expression + :type regexp: str + """ + # preprocess the regular expression + regexp = re.sub(r"\s", "", regexp) + regexp = re.sub(r"<", "(?:<(?:", regexp) + regexp = re.sub(r">", ")>)", regexp) + regexp = re.sub(r"(?]", regexp) + + # perform the search + hits = re.findall(regexp, self._raw) + + # Sanity check + for h in hits: + if not h.startswith("<") and h.endswith(">"): + raise ValueError("Bad regexp for TokenSearcher.findall") + + # postprocess the output + hits = [h[1:-1].split("><") for h in hits] + return hits + + +class Text: + """ + A wrapper around a sequence of simple (string) tokens, which is + intended to support initial exploration of texts (via the + interactive console). Its methods perform a variety of analyses + on the text's contexts (e.g., counting, concordancing, collocation + discovery), and display the results. If you wish to write a + program which makes use of these analyses, then you should bypass + the ``Text`` class, and use the appropriate analysis function or + class directly instead. + + A ``Text`` is typically initialized from a given document or + corpus. E.g.: + + >>> import nltk.corpus + >>> from nltk.text import Text + >>> moby = Text(nltk.corpus.gutenberg.words('melville-moby_dick.txt')) + + """ + + # This defeats lazy loading, but makes things faster. This + # *shouldn't* be necessary because the corpus view *should* be + # doing intelligent caching, but without this it's running slow. + # Look into whether the caching is working correctly. + _COPY_TOKENS = True + + def __init__(self, tokens, name=None): + """ + Create a Text object. + + :param tokens: The source text. + :type tokens: sequence of str + """ + if self._COPY_TOKENS: + tokens = list(tokens) + self.tokens = tokens + + if name: + self.name = name + elif "]" in tokens[:20]: + end = tokens[:20].index("]") + self.name = " ".join(str(tok) for tok in tokens[1:end]) + else: + self.name = " ".join(str(tok) for tok in tokens[:8]) + "..." + + # //////////////////////////////////////////////////////////// + # Support item & slice access + # //////////////////////////////////////////////////////////// + + def __getitem__(self, i): + return self.tokens[i] + + def __len__(self): + return len(self.tokens) + + # //////////////////////////////////////////////////////////// + # Interactive console methods + # //////////////////////////////////////////////////////////// + + def concordance(self, word, width=79, lines=25): + """ + Prints a concordance for ``word`` with the specified context window. + Word matching is not case-sensitive. + + :param word: The target word or phrase (a list of strings) + :type word: str or list + :param width: The width of each line, in characters (default=80) + :type width: int + :param lines: The number of lines to display (default=25) + :type lines: int + + :seealso: ``ConcordanceIndex`` + """ + if "_concordance_index" not in self.__dict__: + self._concordance_index = ConcordanceIndex( + self.tokens, key=lambda s: s.lower() + ) + + return self._concordance_index.print_concordance(word, width, lines) + + def concordance_list(self, word, width=79, lines=25): + """ + Generate a concordance for ``word`` with the specified context window. + Word matching is not case-sensitive. + + :param word: The target word or phrase (a list of strings) + :type word: str or list + :param width: The width of each line, in characters (default=80) + :type width: int + :param lines: The number of lines to display (default=25) + :type lines: int + + :seealso: ``ConcordanceIndex`` + """ + if "_concordance_index" not in self.__dict__: + self._concordance_index = ConcordanceIndex( + self.tokens, key=lambda s: s.lower() + ) + return self._concordance_index.find_concordance(word, width)[:lines] + + def collocation_list(self, num=20, window_size=2): + """ + Return collocations derived from the text, ignoring stopwords. + + >>> from nltk.book import text4 + >>> text4.collocation_list()[:2] + [('United', 'States'), ('fellow', 'citizens')] + + :param num: The maximum number of collocations to return. + :type num: int + :param window_size: The number of tokens spanned by a collocation (default=2) + :type window_size: int + :rtype: list(tuple(str, str)) + """ + if not ( + "_collocations" in self.__dict__ + and self._num == num + and self._window_size == window_size + ): + self._num = num + self._window_size = window_size + + # print("Building collocations list") + from nltk.corpus import stopwords + + ignored_words = stopwords.words("english") + finder = BigramCollocationFinder.from_words(self.tokens, window_size) + finder.apply_freq_filter(2) + finder.apply_word_filter(lambda w: len(w) < 3 or w.lower() in ignored_words) + bigram_measures = BigramAssocMeasures() + self._collocations = list( + finder.nbest(bigram_measures.likelihood_ratio, num) + ) + return self._collocations + + def collocations(self, num=20, window_size=2): + """ + Print collocations derived from the text, ignoring stopwords. + + >>> from nltk.book import text4 + >>> text4.collocations() # doctest: +NORMALIZE_WHITESPACE + United States; fellow citizens; years ago; four years; Federal + Government; General Government; Vice President; American people; God + bless; Chief Justice; one another; fellow Americans; Old World; + Almighty God; Fellow citizens; Chief Magistrate; every citizen; Indian + tribes; public debt; foreign nations + + + :param num: The maximum number of collocations to print. + :type num: int + :param window_size: The number of tokens spanned by a collocation (default=2) + :type window_size: int + """ + + collocation_strings = [ + w1 + " " + w2 for w1, w2 in self.collocation_list(num, window_size) + ] + print(tokenwrap(collocation_strings, separator="; ")) + + def count(self, word): + """ + Count the number of times this word appears in the text. + """ + return self.tokens.count(word) + + def index(self, word): + """ + Find the index of the first occurrence of the word in the text. + """ + return self.tokens.index(word) + + def readability(self, method): + # code from nltk_contrib.readability + raise NotImplementedError + + def similar(self, word, num=20): + """ + Distributional similarity: find other words which appear in the + same contexts as the specified word; list most similar words first. + + :param word: The word used to seed the similarity search + :type word: str + :param num: The number of words to generate (default=20) + :type num: int + :seealso: ContextIndex.similar_words() + """ + if "_word_context_index" not in self.__dict__: + # print('Building word-context index...') + self._word_context_index = ContextIndex( + self.tokens, filter=lambda x: x.isalpha(), key=lambda s: s.lower() + ) + + # words = self._word_context_index.similar_words(word, num) + + word = word.lower() + wci = self._word_context_index._word_to_contexts + if word in wci.conditions(): + contexts = set(wci[word]) + fd = Counter( + w + for w in wci.conditions() + for c in wci[w] + if c in contexts and not w == word + ) + words = [w for w, _ in fd.most_common(num)] + print(tokenwrap(words)) + else: + print("No matches") + + def common_contexts(self, words, num=20): + """ + Find contexts where the specified words appear; list + most frequent common contexts first. + + :param words: The words used to seed the similarity search + :type words: str + :param num: The number of words to generate (default=20) + :type num: int + :seealso: ContextIndex.common_contexts() + """ + if "_word_context_index" not in self.__dict__: + # print('Building word-context index...') + self._word_context_index = ContextIndex( + self.tokens, key=lambda s: s.lower() + ) + + try: + fd = self._word_context_index.common_contexts(words, True) + if not fd: + print("No common contexts were found") + else: + ranked_contexts = [w for w, _ in fd.most_common(num)] + print(tokenwrap(w1 + "_" + w2 for w1, w2 in ranked_contexts)) + + except ValueError as e: + print(e) + + def dispersion_plot(self, words): + """ + Produce a plot showing the distribution of the words through the text. + Requires pylab to be installed. + + :param words: The words to be plotted + :type words: list(str) + :seealso: nltk.draw.dispersion_plot() + """ + from nltk.draw import dispersion_plot + + dispersion_plot(self, words) + + def _train_default_ngram_lm(self, tokenized_sents, n=3): + train_data, padded_sents = padded_everygram_pipeline(n, tokenized_sents) + model = MLE(order=n) + model.fit(train_data, padded_sents) + return model + + def generate(self, length=100, text_seed=None, random_seed=42): + """ + Print random text, generated using a trigram language model. + See also `help(nltk.lm)`. + + :param length: The length of text to generate (default=100) + :type length: int + + :param text_seed: Generation can be conditioned on preceding context. + :type text_seed: list(str) + + :param random_seed: A random seed or an instance of `random.Random`. If provided, + makes the random sampling part of generation reproducible. (default=42) + :type random_seed: int + """ + # Create the model when using it the first time. + self._tokenized_sents = [ + sent.split(" ") for sent in sent_tokenize(" ".join(self.tokens)) + ] + if not hasattr(self, "_trigram_model"): + print("Building ngram index...", file=sys.stderr) + self._trigram_model = self._train_default_ngram_lm( + self._tokenized_sents, n=3 + ) + + generated_tokens = [] + + assert length > 0, "The `length` must be more than 0." + while len(generated_tokens) < length: + for idx, token in enumerate( + self._trigram_model.generate( + length, text_seed=text_seed, random_seed=random_seed + ) + ): + if token == "": + continue + if token == "": + break + generated_tokens.append(token) + random_seed += 1 + + prefix = " ".join(text_seed) + " " if text_seed else "" + output_str = prefix + tokenwrap(generated_tokens[:length]) + print(output_str) + return output_str + + def plot(self, *args): + """ + See documentation for FreqDist.plot() + :seealso: nltk.prob.FreqDist.plot() + """ + return self.vocab().plot(*args) + + def vocab(self): + """ + :seealso: nltk.prob.FreqDist + """ + if "_vocab" not in self.__dict__: + # print("Building vocabulary index...") + self._vocab = FreqDist(self) + return self._vocab + + def findall(self, regexp): + """ + Find instances of the regular expression in the text. + The text is a list of tokens, and a regexp pattern to match + a single token must be surrounded by angle brackets. E.g. + + >>> from nltk.book import text1, text5, text9 + >>> text5.findall("<.*><.*>") + you rule bro; telling you bro; u twizted bro + >>> text1.findall("(<.*>)") + monied; nervous; dangerous; white; white; white; pious; queer; good; + mature; white; Cape; great; wise; wise; butterless; white; fiendish; + pale; furious; better; certain; complete; dismasted; younger; brave; + brave; brave; brave + >>> text9.findall("{3,}") + thread through those; the thought that; that the thing; the thing + that; that that thing; through these than through; them that the; + through the thick; them that they; thought that the + + :param regexp: A regular expression + :type regexp: str + """ + + if "_token_searcher" not in self.__dict__: + self._token_searcher = TokenSearcher(self) + + hits = self._token_searcher.findall(regexp) + hits = [" ".join(h) for h in hits] + print(tokenwrap(hits, "; ")) + + # //////////////////////////////////////////////////////////// + # Helper Methods + # //////////////////////////////////////////////////////////// + + _CONTEXT_RE = re.compile(r"\w+|[\.\!\?]") + + def _context(self, tokens, i): + """ + One left & one right token, both case-normalized. Skip over + non-sentence-final punctuation. Used by the ``ContextIndex`` + that is created for ``similar()`` and ``common_contexts()``. + """ + # Left context + j = i - 1 + while j >= 0 and not self._CONTEXT_RE.match(tokens[j]): + j -= 1 + left = tokens[j] if j != 0 else "*START*" + + # Right context + j = i + 1 + while j < len(tokens) and not self._CONTEXT_RE.match(tokens[j]): + j += 1 + right = tokens[j] if j != len(tokens) else "*END*" + + return (left, right) + + # //////////////////////////////////////////////////////////// + # String Display + # //////////////////////////////////////////////////////////// + + def __str__(self): + return "" % self.name + + def __repr__(self): + return "" % self.name + + +# Prototype only; this approach will be slow to load +class TextCollection(Text): + """A collection of texts, which can be loaded with list of texts, or + with a corpus consisting of one or more texts, and which supports + counting, concordancing, collocation discovery, etc. Initialize a + TextCollection as follows: + + >>> import nltk.corpus + >>> from nltk.text import TextCollection + >>> from nltk.book import text1, text2, text3 + >>> gutenberg = TextCollection(nltk.corpus.gutenberg) + >>> mytexts = TextCollection([text1, text2, text3]) + + Iterating over a TextCollection produces all the tokens of all the + texts in order. + """ + + def __init__(self, source): + if hasattr(source, "words"): # bridge to the text corpus reader + source = [source.words(f) for f in source.fileids()] + + self._texts = source + Text.__init__(self, LazyConcatenation(source)) + self._idf_cache = {} + + def tf(self, term, text): + """The frequency of the term in text.""" + return text.count(term) / len(text) + + def idf(self, term): + """The number of texts in the corpus divided by the + number of texts that the term appears in. + If a term does not appear in the corpus, 0.0 is returned.""" + # idf values are cached for performance. + idf = self._idf_cache.get(term) + if idf is None: + matches = len([True for text in self._texts if term in text]) + if len(self._texts) == 0: + raise ValueError("IDF undefined for empty document collection") + idf = log(len(self._texts) / matches) if matches else 0.0 + self._idf_cache[term] = idf + return idf + + def tf_idf(self, term, text): + return self.tf(term, text) * self.idf(term) + + +def demo(): + from nltk.corpus import brown + + text = Text(brown.words(categories="news")) + print(text) + print() + print("Concordance:") + text.concordance("news") + print() + print("Distributionally similar words:") + text.similar("news") + print() + print("Collocations:") + text.collocations() + print() + # print("Automatically generated text:") + # text.generate() + # print() + print("Dispersion plot:") + text.dispersion_plot(["news", "report", "said", "announced"]) + print() + print("Vocabulary plot:") + text.plot(50) + print() + print("Indexing:") + print("text[3]:", text[3]) + print("text[3:5]:", text[3:5]) + print("text.vocab()['news']:", text.vocab()["news"]) + + +if __name__ == "__main__": + demo() + +__all__ = [ + "ContextIndex", + "ConcordanceIndex", + "TokenSearcher", + "Text", + "TextCollection", +] diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/tgrep.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/tgrep.py new file mode 100644 index 0000000000000000000000000000000000000000..47ecec1d47ff8e681e1f7ce5c790af31479996c2 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/tgrep.py @@ -0,0 +1,1040 @@ +#!/usr/bin/env python +# +# Natural Language Toolkit: TGrep search +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Will Roberts +# URL: +# For license information, see LICENSE.TXT + +""" +============================================ + TGrep search implementation for NLTK trees +============================================ + +This module supports TGrep2 syntax for matching parts of NLTK Trees. +Note that many tgrep operators require the tree passed to be a +``ParentedTree``. + +External links: + +- `Tgrep tutorial `_ +- `Tgrep2 manual `_ +- `Tgrep2 source `_ + +Usage +===== + +>>> from nltk.tree import ParentedTree +>>> from nltk.tgrep import tgrep_nodes, tgrep_positions +>>> tree = ParentedTree.fromstring('(S (NP (DT the) (JJ big) (NN dog)) (VP bit) (NP (DT a) (NN cat)))') +>>> list(tgrep_nodes('NN', [tree])) +[[ParentedTree('NN', ['dog']), ParentedTree('NN', ['cat'])]] +>>> list(tgrep_positions('NN', [tree])) +[[(0, 2), (2, 1)]] +>>> list(tgrep_nodes('DT', [tree])) +[[ParentedTree('DT', ['the']), ParentedTree('DT', ['a'])]] +>>> list(tgrep_nodes('DT $ JJ', [tree])) +[[ParentedTree('DT', ['the'])]] + +This implementation adds syntax to select nodes based on their NLTK +tree position. This syntax is ``N`` plus a Python tuple representing +the tree position. For instance, ``N()``, ``N(0,)``, ``N(0,0)`` are +valid node selectors. Example: + +>>> tree = ParentedTree.fromstring('(S (NP (DT the) (JJ big) (NN dog)) (VP bit) (NP (DT a) (NN cat)))') +>>> tree[0,0] +ParentedTree('DT', ['the']) +>>> tree[0,0].treeposition() +(0, 0) +>>> list(tgrep_nodes('N(0,0)', [tree])) +[[ParentedTree('DT', ['the'])]] + +Caveats: +======== + +- Link modifiers: "?" and "=" are not implemented. +- Tgrep compatibility: Using "@" for "!", "{" for "<", "}" for ">" are + not implemented. +- The "=" and "~" links are not implemented. + +Known Issues: +============= + +- There are some issues with link relations involving leaf nodes + (which are represented as bare strings in NLTK trees). For + instance, consider the tree:: + + (S (A x)) + + The search string ``* !>> S`` should select all nodes which are not + dominated in some way by an ``S`` node (i.e., all nodes which are + not descendants of an ``S``). Clearly, in this tree, the only node + which fulfills this criterion is the top node (since it is not + dominated by anything). However, the code here will find both the + top node and the leaf node ``x``. This is because we cannot recover + the parent of the leaf, since it is stored as a bare string. + + A possible workaround, when performing this kind of search, would be + to filter out all leaf nodes. + +Implementation notes +==================== + +This implementation is (somewhat awkwardly) based on lambda functions +which are predicates on a node. A predicate is a function which is +either True or False; using a predicate function, we can identify sets +of nodes with particular properties. A predicate function, could, for +instance, return True only if a particular node has a label matching a +particular regular expression, and has a daughter node which has no +sisters. Because tgrep2 search strings can do things statefully (such +as substituting in macros, and binding nodes with node labels), the +actual predicate function is declared with three arguments:: + + pred = lambda n, m, l: return True # some logic here + +``n`` + is a node in a tree; this argument must always be given + +``m`` + contains a dictionary, mapping macro names onto predicate functions + +``l`` + is a dictionary to map node labels onto nodes in the tree + +``m`` and ``l`` are declared to default to ``None``, and so need not be +specified in a call to a predicate. Predicates which call other +predicates must always pass the value of these arguments on. The +top-level predicate (constructed by ``_tgrep_exprs_action``) binds the +macro definitions to ``m`` and initialises ``l`` to an empty dictionary. +""" + +import functools +import re + +try: + import pyparsing +except ImportError: + print("Warning: nltk.tgrep will not work without the `pyparsing` package") + print("installed.") + +import nltk.tree + + +class TgrepException(Exception): + """Tgrep exception type.""" + + pass + + +def ancestors(node): + """ + Returns the list of all nodes dominating the given tree node. + This method will not work with leaf nodes, since there is no way + to recover the parent. + """ + results = [] + try: + current = node.parent() + except AttributeError: + # if node is a leaf, we cannot retrieve its parent + return results + while current: + results.append(current) + current = current.parent() + return results + + +def unique_ancestors(node): + """ + Returns the list of all nodes dominating the given node, where + there is only a single path of descent. + """ + results = [] + try: + current = node.parent() + except AttributeError: + # if node is a leaf, we cannot retrieve its parent + return results + while current and len(current) == 1: + results.append(current) + current = current.parent() + return results + + +def _descendants(node): + """ + Returns the list of all nodes which are descended from the given + tree node in some way. + """ + try: + treepos = node.treepositions() + except AttributeError: + return [] + return [node[x] for x in treepos[1:]] + + +def _leftmost_descendants(node): + """ + Returns the set of all nodes descended in some way through + left branches from this node. + """ + try: + treepos = node.treepositions() + except AttributeError: + return [] + return [node[x] for x in treepos[1:] if all(y == 0 for y in x)] + + +def _rightmost_descendants(node): + """ + Returns the set of all nodes descended in some way through + right branches from this node. + """ + try: + rightmost_leaf = max(node.treepositions()) + except AttributeError: + return [] + return [node[rightmost_leaf[:i]] for i in range(1, len(rightmost_leaf) + 1)] + + +def _istree(obj): + """Predicate to check whether `obj` is a nltk.tree.Tree.""" + return isinstance(obj, nltk.tree.Tree) + + +def _unique_descendants(node): + """ + Returns the list of all nodes descended from the given node, where + there is only a single path of descent. + """ + results = [] + current = node + while current and _istree(current) and len(current) == 1: + current = current[0] + results.append(current) + return results + + +def _before(node): + """ + Returns the set of all nodes that are before the given node. + """ + try: + pos = node.treeposition() + tree = node.root() + except AttributeError: + return [] + return [tree[x] for x in tree.treepositions() if x[: len(pos)] < pos[: len(x)]] + + +def _immediately_before(node): + """ + Returns the set of all nodes that are immediately before the given + node. + + Tree node A immediately precedes node B if the last terminal + symbol (word) produced by A immediately precedes the first + terminal symbol produced by B. + """ + try: + pos = node.treeposition() + tree = node.root() + except AttributeError: + return [] + # go "upwards" from pos until there is a place we can go to the left + idx = len(pos) - 1 + while 0 <= idx and pos[idx] == 0: + idx -= 1 + if idx < 0: + return [] + pos = list(pos[: idx + 1]) + pos[-1] -= 1 + before = tree[pos] + return [before] + _rightmost_descendants(before) + + +def _after(node): + """ + Returns the set of all nodes that are after the given node. + """ + try: + pos = node.treeposition() + tree = node.root() + except AttributeError: + return [] + return [tree[x] for x in tree.treepositions() if x[: len(pos)] > pos[: len(x)]] + + +def _immediately_after(node): + """ + Returns the set of all nodes that are immediately after the given + node. + + Tree node A immediately follows node B if the first terminal + symbol (word) produced by A immediately follows the last + terminal symbol produced by B. + """ + try: + pos = node.treeposition() + tree = node.root() + current = node.parent() + except AttributeError: + return [] + # go "upwards" from pos until there is a place we can go to the + # right + idx = len(pos) - 1 + while 0 <= idx and pos[idx] == len(current) - 1: + idx -= 1 + current = current.parent() + if idx < 0: + return [] + pos = list(pos[: idx + 1]) + pos[-1] += 1 + after = tree[pos] + return [after] + _leftmost_descendants(after) + + +def _tgrep_node_literal_value(node): + """ + Gets the string value of a given parse tree node, for comparison + using the tgrep node literal predicates. + """ + return node.label() if _istree(node) else str(node) + + +def _tgrep_macro_use_action(_s, _l, tokens): + """ + Builds a lambda function which looks up the macro name used. + """ + assert len(tokens) == 1 + assert tokens[0][0] == "@" + macro_name = tokens[0][1:] + + def macro_use(n, m=None, l=None): + if m is None or macro_name not in m: + raise TgrepException(f"macro {macro_name} not defined") + return m[macro_name](n, m, l) + + return macro_use + + +def _tgrep_node_action(_s, _l, tokens): + """ + Builds a lambda function representing a predicate on a tree node + depending on the name of its node. + """ + if tokens[0] == "'": + # strip initial apostrophe (tgrep2 print command) + tokens = tokens[1:] + if len(tokens) > 1: + # disjunctive definition of a node name + assert list(set(tokens[1::2])) == ["|"] + # recursively call self to interpret each node name definition + tokens = [_tgrep_node_action(None, None, [node]) for node in tokens[::2]] + # capture tokens and return the disjunction + return (lambda t: lambda n, m=None, l=None: any(f(n, m, l) for f in t))(tokens) + else: + if hasattr(tokens[0], "__call__"): + # this is a previously interpreted parenthetical node + # definition (lambda function) + return tokens[0] + elif tokens[0] == "*" or tokens[0] == "__": + return lambda n, m=None, l=None: True + elif tokens[0].startswith('"'): + assert tokens[0].endswith('"') + node_lit = tokens[0][1:-1].replace('\\"', '"').replace("\\\\", "\\") + return ( + lambda s: lambda n, m=None, l=None: _tgrep_node_literal_value(n) == s + )(node_lit) + elif tokens[0].startswith("/"): + assert tokens[0].endswith("/") + node_lit = tokens[0][1:-1] + return ( + lambda r: lambda n, m=None, l=None: r.search( + _tgrep_node_literal_value(n) + ) + )(re.compile(node_lit)) + elif tokens[0].startswith("i@"): + node_func = _tgrep_node_action(_s, _l, [tokens[0][2:].lower()]) + return ( + lambda f: lambda n, m=None, l=None: f( + _tgrep_node_literal_value(n).lower() + ) + )(node_func) + else: + return ( + lambda s: lambda n, m=None, l=None: _tgrep_node_literal_value(n) == s + )(tokens[0]) + + +def _tgrep_parens_action(_s, _l, tokens): + """ + Builds a lambda function representing a predicate on a tree node + from a parenthetical notation. + """ + assert len(tokens) == 3 + assert tokens[0] == "(" + assert tokens[2] == ")" + return tokens[1] + + +def _tgrep_nltk_tree_pos_action(_s, _l, tokens): + """ + Builds a lambda function representing a predicate on a tree node + which returns true if the node is located at a specific tree + position. + """ + # recover the tuple from the parsed string + node_tree_position = tuple(int(x) for x in tokens if x.isdigit()) + # capture the node's tree position + return ( + lambda i: lambda n, m=None, l=None: ( + hasattr(n, "treeposition") and n.treeposition() == i + ) + )(node_tree_position) + + +def _tgrep_relation_action(_s, _l, tokens): + """ + Builds a lambda function representing a predicate on a tree node + depending on its relation to other nodes in the tree. + """ + # process negation first if needed + negated = False + if tokens[0] == "!": + negated = True + tokens = tokens[1:] + if tokens[0] == "[": + # process square-bracketed relation expressions + assert len(tokens) == 3 + assert tokens[2] == "]" + retval = tokens[1] + else: + # process operator-node relation expressions + assert len(tokens) == 2 + operator, predicate = tokens + # A < B A is the parent of (immediately dominates) B. + if operator == "<": + retval = lambda n, m=None, l=None: ( + _istree(n) and any(predicate(x, m, l) for x in n) + ) + # A > B A is the child of B. + elif operator == ">": + retval = lambda n, m=None, l=None: ( + hasattr(n, "parent") + and bool(n.parent()) + and predicate(n.parent(), m, l) + ) + # A <, B Synonymous with A <1 B. + elif operator == "<," or operator == "<1": + retval = lambda n, m=None, l=None: ( + _istree(n) and bool(list(n)) and predicate(n[0], m, l) + ) + # A >, B Synonymous with A >1 B. + elif operator == ">," or operator == ">1": + retval = lambda n, m=None, l=None: ( + hasattr(n, "parent") + and bool(n.parent()) + and (n is n.parent()[0]) + and predicate(n.parent(), m, l) + ) + # A N B A is the Nth child of B (the first child is >1). + elif operator[0] == ">" and operator[1:].isdigit(): + idx = int(operator[1:]) + # capture the index parameter + retval = ( + lambda i: lambda n, m=None, l=None: ( + hasattr(n, "parent") + and bool(n.parent()) + and 0 <= i < len(n.parent()) + and (n is n.parent()[i]) + and predicate(n.parent(), m, l) + ) + )(idx - 1) + # A <' B B is the last child of A (also synonymous with A <-1 B). + # A <- B B is the last child of A (synonymous with A <-1 B). + elif operator == "<'" or operator == "<-" or operator == "<-1": + retval = lambda n, m=None, l=None: ( + _istree(n) and bool(list(n)) and predicate(n[-1], m, l) + ) + # A >' B A is the last child of B (also synonymous with A >-1 B). + # A >- B A is the last child of B (synonymous with A >-1 B). + elif operator == ">'" or operator == ">-" or operator == ">-1": + retval = lambda n, m=None, l=None: ( + hasattr(n, "parent") + and bool(n.parent()) + and (n is n.parent()[-1]) + and predicate(n.parent(), m, l) + ) + # A <-N B B is the N th-to-last child of A (the last child is <-1). + elif operator[:2] == "<-" and operator[2:].isdigit(): + idx = -int(operator[2:]) + # capture the index parameter + retval = ( + lambda i: lambda n, m=None, l=None: ( + _istree(n) + and bool(list(n)) + and 0 <= (i + len(n)) < len(n) + and predicate(n[i + len(n)], m, l) + ) + )(idx) + # A >-N B A is the N th-to-last child of B (the last child is >-1). + elif operator[:2] == ">-" and operator[2:].isdigit(): + idx = -int(operator[2:]) + # capture the index parameter + retval = ( + lambda i: lambda n, m=None, l=None: ( + hasattr(n, "parent") + and bool(n.parent()) + and 0 <= (i + len(n.parent())) < len(n.parent()) + and (n is n.parent()[i + len(n.parent())]) + and predicate(n.parent(), m, l) + ) + )(idx) + # A <: B B is the only child of A + elif operator == "<:": + retval = lambda n, m=None, l=None: ( + _istree(n) and len(n) == 1 and predicate(n[0], m, l) + ) + # A >: B A is the only child of B. + elif operator == ">:": + retval = lambda n, m=None, l=None: ( + hasattr(n, "parent") + and bool(n.parent()) + and len(n.parent()) == 1 + and predicate(n.parent(), m, l) + ) + # A << B A dominates B (A is an ancestor of B). + elif operator == "<<": + retval = lambda n, m=None, l=None: ( + _istree(n) and any(predicate(x, m, l) for x in _descendants(n)) + ) + # A >> B A is dominated by B (A is a descendant of B). + elif operator == ">>": + retval = lambda n, m=None, l=None: any( + predicate(x, m, l) for x in ancestors(n) + ) + # A <<, B B is a left-most descendant of A. + elif operator == "<<," or operator == "<<1": + retval = lambda n, m=None, l=None: ( + _istree(n) and any(predicate(x, m, l) for x in _leftmost_descendants(n)) + ) + # A >>, B A is a left-most descendant of B. + elif operator == ">>,": + retval = lambda n, m=None, l=None: any( + (predicate(x, m, l) and n in _leftmost_descendants(x)) + for x in ancestors(n) + ) + # A <<' B B is a right-most descendant of A. + elif operator == "<<'": + retval = lambda n, m=None, l=None: ( + _istree(n) + and any(predicate(x, m, l) for x in _rightmost_descendants(n)) + ) + # A >>' B A is a right-most descendant of B. + elif operator == ">>'": + retval = lambda n, m=None, l=None: any( + (predicate(x, m, l) and n in _rightmost_descendants(x)) + for x in ancestors(n) + ) + # A <<: B There is a single path of descent from A and B is on it. + elif operator == "<<:": + retval = lambda n, m=None, l=None: ( + _istree(n) and any(predicate(x, m, l) for x in _unique_descendants(n)) + ) + # A >>: B There is a single path of descent from B and A is on it. + elif operator == ">>:": + retval = lambda n, m=None, l=None: any( + predicate(x, m, l) for x in unique_ancestors(n) + ) + # A . B A immediately precedes B. + elif operator == ".": + retval = lambda n, m=None, l=None: any( + predicate(x, m, l) for x in _immediately_after(n) + ) + # A , B A immediately follows B. + elif operator == ",": + retval = lambda n, m=None, l=None: any( + predicate(x, m, l) for x in _immediately_before(n) + ) + # A .. B A precedes B. + elif operator == "..": + retval = lambda n, m=None, l=None: any( + predicate(x, m, l) for x in _after(n) + ) + # A ,, B A follows B. + elif operator == ",,": + retval = lambda n, m=None, l=None: any( + predicate(x, m, l) for x in _before(n) + ) + # A $ B A is a sister of B (and A != B). + elif operator == "$" or operator == "%": + retval = lambda n, m=None, l=None: ( + hasattr(n, "parent") + and bool(n.parent()) + and any(predicate(x, m, l) for x in n.parent() if x is not n) + ) + # A $. B A is a sister of and immediately precedes B. + elif operator == "$." or operator == "%.": + retval = lambda n, m=None, l=None: ( + hasattr(n, "right_sibling") + and bool(n.right_sibling()) + and predicate(n.right_sibling(), m, l) + ) + # A $, B A is a sister of and immediately follows B. + elif operator == "$," or operator == "%,": + retval = lambda n, m=None, l=None: ( + hasattr(n, "left_sibling") + and bool(n.left_sibling()) + and predicate(n.left_sibling(), m, l) + ) + # A $.. B A is a sister of and precedes B. + elif operator == "$.." or operator == "%..": + retval = lambda n, m=None, l=None: ( + hasattr(n, "parent") + and hasattr(n, "parent_index") + and bool(n.parent()) + and any(predicate(x, m, l) for x in n.parent()[n.parent_index() + 1 :]) + ) + # A $,, B A is a sister of and follows B. + elif operator == "$,," or operator == "%,,": + retval = lambda n, m=None, l=None: ( + hasattr(n, "parent") + and hasattr(n, "parent_index") + and bool(n.parent()) + and any(predicate(x, m, l) for x in n.parent()[: n.parent_index()]) + ) + else: + raise TgrepException(f'cannot interpret tgrep operator "{operator}"') + # now return the built function + if negated: + return (lambda r: (lambda n, m=None, l=None: not r(n, m, l)))(retval) + else: + return retval + + +def _tgrep_conjunction_action(_s, _l, tokens, join_char="&"): + """ + Builds a lambda function representing a predicate on a tree node + from the conjunction of several other such lambda functions. + + This is prototypically called for expressions like + (`tgrep_rel_conjunction`):: + + < NP & < AP < VP + + where tokens is a list of predicates representing the relations + (`< NP`, `< AP`, and `< VP`), possibly with the character `&` + included (as in the example here). + + This is also called for expressions like (`tgrep_node_expr2`):: + + NP < NN + S=s < /NP/=n : s < /VP/=v : n .. v + + tokens[0] is a tgrep_expr predicate; tokens[1:] are an (optional) + list of segmented patterns (`tgrep_expr_labeled`, processed by + `_tgrep_segmented_pattern_action`). + """ + # filter out the ampersand + tokens = [x for x in tokens if x != join_char] + if len(tokens) == 1: + return tokens[0] + else: + return ( + lambda ts: lambda n, m=None, l=None: all( + predicate(n, m, l) for predicate in ts + ) + )(tokens) + + +def _tgrep_segmented_pattern_action(_s, _l, tokens): + """ + Builds a lambda function representing a segmented pattern. + + Called for expressions like (`tgrep_expr_labeled`):: + + =s .. =v < =n + + This is a segmented pattern, a tgrep2 expression which begins with + a node label. + + The problem is that for segemented_pattern_action (': =v < =s'), + the first element (in this case, =v) is specifically selected by + virtue of matching a particular node in the tree; to retrieve + the node, we need the label, not a lambda function. For node + labels inside a tgrep_node_expr, we need a lambda function which + returns true if the node visited is the same as =v. + + We solve this by creating two copies of a node_label_use in the + grammar; the label use inside a tgrep_expr_labeled has a separate + parse action to the pred use inside a node_expr. See + `_tgrep_node_label_use_action` and + `_tgrep_node_label_pred_use_action`. + """ + # tokens[0] is a string containing the node label + node_label = tokens[0] + # tokens[1:] is an (optional) list of predicates which must all + # hold of the bound node + reln_preds = tokens[1:] + + def pattern_segment_pred(n, m=None, l=None): + """This predicate function ignores its node argument.""" + # look up the bound node using its label + if l is None or node_label not in l: + raise TgrepException(f"node_label ={node_label} not bound in pattern") + node = l[node_label] + # match the relation predicates against the node + return all(pred(node, m, l) for pred in reln_preds) + + return pattern_segment_pred + + +def _tgrep_node_label_use_action(_s, _l, tokens): + """ + Returns the node label used to begin a tgrep_expr_labeled. See + `_tgrep_segmented_pattern_action`. + + Called for expressions like (`tgrep_node_label_use`):: + + =s + + when they appear as the first element of a `tgrep_expr_labeled` + expression (see `_tgrep_segmented_pattern_action`). + + It returns the node label. + """ + assert len(tokens) == 1 + assert tokens[0].startswith("=") + return tokens[0][1:] + + +def _tgrep_node_label_pred_use_action(_s, _l, tokens): + """ + Builds a lambda function representing a predicate on a tree node + which describes the use of a previously bound node label. + + Called for expressions like (`tgrep_node_label_use_pred`):: + + =s + + when they appear inside a tgrep_node_expr (for example, inside a + relation). The predicate returns true if and only if its node + argument is identical the the node looked up in the node label + dictionary using the node's label. + """ + assert len(tokens) == 1 + assert tokens[0].startswith("=") + node_label = tokens[0][1:] + + def node_label_use_pred(n, m=None, l=None): + # look up the bound node using its label + if l is None or node_label not in l: + raise TgrepException(f"node_label ={node_label} not bound in pattern") + node = l[node_label] + # truth means the given node is this node + return n is node + + return node_label_use_pred + + +def _tgrep_bind_node_label_action(_s, _l, tokens): + """ + Builds a lambda function representing a predicate on a tree node + which can optionally bind a matching node into the tgrep2 string's + label_dict. + + Called for expressions like (`tgrep_node_expr2`):: + + /NP/ + @NP=n + """ + # tokens[0] is a tgrep_node_expr + if len(tokens) == 1: + return tokens[0] + else: + # if present, tokens[1] is the character '=', and tokens[2] is + # a tgrep_node_label, a string value containing the node label + assert len(tokens) == 3 + assert tokens[1] == "=" + node_pred = tokens[0] + node_label = tokens[2] + + def node_label_bind_pred(n, m=None, l=None): + if node_pred(n, m, l): + # bind `n` into the dictionary `l` + if l is None: + raise TgrepException( + "cannot bind node_label {}: label_dict is None".format( + node_label + ) + ) + l[node_label] = n + return True + else: + return False + + return node_label_bind_pred + + +def _tgrep_rel_disjunction_action(_s, _l, tokens): + """ + Builds a lambda function representing a predicate on a tree node + from the disjunction of several other such lambda functions. + """ + # filter out the pipe + tokens = [x for x in tokens if x != "|"] + if len(tokens) == 1: + return tokens[0] + elif len(tokens) == 2: + return (lambda a, b: lambda n, m=None, l=None: a(n, m, l) or b(n, m, l))( + tokens[0], tokens[1] + ) + + +def _macro_defn_action(_s, _l, tokens): + """ + Builds a dictionary structure which defines the given macro. + """ + assert len(tokens) == 3 + assert tokens[0] == "@" + return {tokens[1]: tokens[2]} + + +def _tgrep_exprs_action(_s, _l, tokens): + """ + This is the top-lebel node in a tgrep2 search string; the + predicate function it returns binds together all the state of a + tgrep2 search string. + + Builds a lambda function representing a predicate on a tree node + from the disjunction of several tgrep expressions. Also handles + macro definitions and macro name binding, and node label + definitions and node label binding. + """ + if len(tokens) == 1: + return lambda n, m=None, l=None: tokens[0](n, None, {}) + # filter out all the semicolons + tokens = [x for x in tokens if x != ";"] + # collect all macro definitions + macro_dict = {} + macro_defs = [tok for tok in tokens if isinstance(tok, dict)] + for macro_def in macro_defs: + macro_dict.update(macro_def) + # collect all tgrep expressions + tgrep_exprs = [tok for tok in tokens if not isinstance(tok, dict)] + + # create a new scope for the node label dictionary + def top_level_pred(n, m=macro_dict, l=None): + label_dict = {} + # bind macro definitions and OR together all tgrep_exprs + return any(predicate(n, m, label_dict) for predicate in tgrep_exprs) + + return top_level_pred + + +def _build_tgrep_parser(set_parse_actions=True): + """ + Builds a pyparsing-based parser object for tokenizing and + interpreting tgrep search strings. + """ + tgrep_op = pyparsing.Optional("!") + pyparsing.Regex("[$%,.<>][%,.<>0-9-':]*") + tgrep_qstring = pyparsing.QuotedString( + quoteChar='"', escChar="\\", unquoteResults=False + ) + tgrep_node_regex = pyparsing.QuotedString( + quoteChar="/", escChar="\\", unquoteResults=False + ) + tgrep_qstring_icase = pyparsing.Regex('i@\\"(?:[^"\\n\\r\\\\]|(?:\\\\.))*\\"') + tgrep_node_regex_icase = pyparsing.Regex("i@\\/(?:[^/\\n\\r\\\\]|(?:\\\\.))*\\/") + tgrep_node_literal = pyparsing.Regex("[^][ \r\t\n;:.,&|<>()$!@%'^=]+") + tgrep_expr = pyparsing.Forward() + tgrep_relations = pyparsing.Forward() + tgrep_parens = pyparsing.Literal("(") + tgrep_expr + ")" + tgrep_nltk_tree_pos = ( + pyparsing.Literal("N(") + + pyparsing.Optional( + pyparsing.Word(pyparsing.nums) + + "," + + pyparsing.Optional( + pyparsing.delimitedList(pyparsing.Word(pyparsing.nums), delim=",") + + pyparsing.Optional(",") + ) + ) + + ")" + ) + tgrep_node_label = pyparsing.Regex("[A-Za-z0-9]+") + tgrep_node_label_use = pyparsing.Combine("=" + tgrep_node_label) + # see _tgrep_segmented_pattern_action + tgrep_node_label_use_pred = tgrep_node_label_use.copy() + macro_name = pyparsing.Regex("[^];:.,&|<>()[$!@%'^=\r\t\n ]+") + macro_name.setWhitespaceChars("") + macro_use = pyparsing.Combine("@" + macro_name) + tgrep_node_expr = ( + tgrep_node_label_use_pred + | macro_use + | tgrep_nltk_tree_pos + | tgrep_qstring_icase + | tgrep_node_regex_icase + | tgrep_qstring + | tgrep_node_regex + | "*" + | tgrep_node_literal + ) + tgrep_node_expr2 = ( + tgrep_node_expr + + pyparsing.Literal("=").setWhitespaceChars("") + + tgrep_node_label.copy().setWhitespaceChars("") + ) | tgrep_node_expr + tgrep_node = tgrep_parens | ( + pyparsing.Optional("'") + + tgrep_node_expr2 + + pyparsing.ZeroOrMore("|" + tgrep_node_expr) + ) + tgrep_brackets = pyparsing.Optional("!") + "[" + tgrep_relations + "]" + tgrep_relation = tgrep_brackets | (tgrep_op + tgrep_node) + tgrep_rel_conjunction = pyparsing.Forward() + tgrep_rel_conjunction << ( + tgrep_relation + + pyparsing.ZeroOrMore(pyparsing.Optional("&") + tgrep_rel_conjunction) + ) + tgrep_relations << tgrep_rel_conjunction + pyparsing.ZeroOrMore( + "|" + tgrep_relations + ) + tgrep_expr << tgrep_node + pyparsing.Optional(tgrep_relations) + tgrep_expr_labeled = tgrep_node_label_use + pyparsing.Optional(tgrep_relations) + tgrep_expr2 = tgrep_expr + pyparsing.ZeroOrMore(":" + tgrep_expr_labeled) + macro_defn = ( + pyparsing.Literal("@") + pyparsing.White().suppress() + macro_name + tgrep_expr2 + ) + tgrep_exprs = ( + pyparsing.Optional(macro_defn + pyparsing.ZeroOrMore(";" + macro_defn) + ";") + + tgrep_expr2 + + pyparsing.ZeroOrMore(";" + (macro_defn | tgrep_expr2)) + + pyparsing.ZeroOrMore(";").suppress() + ) + if set_parse_actions: + tgrep_node_label_use.setParseAction(_tgrep_node_label_use_action) + tgrep_node_label_use_pred.setParseAction(_tgrep_node_label_pred_use_action) + macro_use.setParseAction(_tgrep_macro_use_action) + tgrep_node.setParseAction(_tgrep_node_action) + tgrep_node_expr2.setParseAction(_tgrep_bind_node_label_action) + tgrep_parens.setParseAction(_tgrep_parens_action) + tgrep_nltk_tree_pos.setParseAction(_tgrep_nltk_tree_pos_action) + tgrep_relation.setParseAction(_tgrep_relation_action) + tgrep_rel_conjunction.setParseAction(_tgrep_conjunction_action) + tgrep_relations.setParseAction(_tgrep_rel_disjunction_action) + macro_defn.setParseAction(_macro_defn_action) + # the whole expression is also the conjunction of two + # predicates: the first node predicate, and the remaining + # relation predicates + tgrep_expr.setParseAction(_tgrep_conjunction_action) + tgrep_expr_labeled.setParseAction(_tgrep_segmented_pattern_action) + tgrep_expr2.setParseAction( + functools.partial(_tgrep_conjunction_action, join_char=":") + ) + tgrep_exprs.setParseAction(_tgrep_exprs_action) + return tgrep_exprs.ignore("#" + pyparsing.restOfLine) + + +def tgrep_tokenize(tgrep_string): + """ + Tokenizes a TGrep search string into separate tokens. + """ + parser = _build_tgrep_parser(False) + if isinstance(tgrep_string, bytes): + tgrep_string = tgrep_string.decode() + return list(parser.parseString(tgrep_string)) + + +def tgrep_compile(tgrep_string): + """ + Parses (and tokenizes, if necessary) a TGrep search string into a + lambda function. + """ + parser = _build_tgrep_parser(True) + if isinstance(tgrep_string, bytes): + tgrep_string = tgrep_string.decode() + return list(parser.parseString(tgrep_string, parseAll=True))[0] + + +def treepositions_no_leaves(tree): + """ + Returns all the tree positions in the given tree which are not + leaf nodes. + """ + treepositions = tree.treepositions() + # leaves are treeposition tuples that are not prefixes of any + # other treeposition + prefixes = set() + for pos in treepositions: + for length in range(len(pos)): + prefixes.add(pos[:length]) + return [pos for pos in treepositions if pos in prefixes] + + +def tgrep_positions(pattern, trees, search_leaves=True): + """ + Return the tree positions in the trees which match the given pattern. + + :param pattern: a tgrep search pattern + :type pattern: str or output of tgrep_compile() + :param trees: a sequence of NLTK trees (usually ParentedTrees) + :type trees: iter(ParentedTree) or iter(Tree) + :param search_leaves: whether to return matching leaf nodes + :type search_leaves: bool + :rtype: iter(tree positions) + """ + + if isinstance(pattern, (bytes, str)): + pattern = tgrep_compile(pattern) + + for tree in trees: + try: + if search_leaves: + positions = tree.treepositions() + else: + positions = treepositions_no_leaves(tree) + yield [position for position in positions if pattern(tree[position])] + except AttributeError: + yield [] + + +def tgrep_nodes(pattern, trees, search_leaves=True): + """ + Return the tree nodes in the trees which match the given pattern. + + :param pattern: a tgrep search pattern + :type pattern: str or output of tgrep_compile() + :param trees: a sequence of NLTK trees (usually ParentedTrees) + :type trees: iter(ParentedTree) or iter(Tree) + :param search_leaves: whether to return matching leaf nodes + :type search_leaves: bool + :rtype: iter(tree nodes) + """ + + if isinstance(pattern, (bytes, str)): + pattern = tgrep_compile(pattern) + + for tree in trees: + try: + if search_leaves: + positions = tree.treepositions() + else: + positions = treepositions_no_leaves(tree) + yield [tree[position] for position in positions if pattern(tree[position])] + except AttributeError: + yield [] diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/toolbox.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/toolbox.py new file mode 100644 index 0000000000000000000000000000000000000000..0088c2fd4463fe59407ac4024447b2241a4f7ce1 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/toolbox.py @@ -0,0 +1,524 @@ +# Natural Language Toolkit: Toolbox Reader +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Greg Aumann +# URL: +# For license information, see LICENSE.TXT + +""" +Module for reading, writing and manipulating +Toolbox databases and settings files. +""" + +import codecs +import re +from io import StringIO +from xml.etree.ElementTree import Element, ElementTree, SubElement, TreeBuilder + +from nltk.data import PathPointer, find + + +class StandardFormat: + """ + Class for reading and processing standard format marker files and strings. + """ + + def __init__(self, filename=None, encoding=None): + self._encoding = encoding + if filename is not None: + self.open(filename) + + def open(self, sfm_file): + """ + Open a standard format marker file for sequential reading. + + :param sfm_file: name of the standard format marker input file + :type sfm_file: str + """ + if isinstance(sfm_file, PathPointer): + self._file = sfm_file.open(self._encoding) + else: + self._file = codecs.open(sfm_file, "r", self._encoding) + + def open_string(self, s): + """ + Open a standard format marker string for sequential reading. + + :param s: string to parse as a standard format marker input file + :type s: str + """ + self._file = StringIO(s) + + def raw_fields(self): + """ + Return an iterator that returns the next field in a (marker, value) + tuple. Linebreaks and trailing white space are preserved except + for the final newline in each field. + + :rtype: iter(tuple(str, str)) + """ + join_string = "\n" + line_regexp = r"^%s(?:\\(\S+)\s*)?(.*)$" + # discard a BOM in the first line + first_line_pat = re.compile(line_regexp % "(?:\xef\xbb\xbf)?") + line_pat = re.compile(line_regexp % "") + # need to get first line outside the loop for correct handling + # of the first marker if it spans multiple lines + file_iter = iter(self._file) + # PEP 479, prevent RuntimeError when StopIteration is raised inside generator + try: + line = next(file_iter) + except StopIteration: + # no more data is available, terminate the generator + return + mobj = re.match(first_line_pat, line) + mkr, line_value = mobj.groups() + value_lines = [line_value] + self.line_num = 0 + for line in file_iter: + self.line_num += 1 + mobj = re.match(line_pat, line) + line_mkr, line_value = mobj.groups() + if line_mkr: + yield (mkr, join_string.join(value_lines)) + mkr = line_mkr + value_lines = [line_value] + else: + value_lines.append(line_value) + self.line_num += 1 + yield (mkr, join_string.join(value_lines)) + + def fields( + self, + strip=True, + unwrap=True, + encoding=None, + errors="strict", + unicode_fields=None, + ): + """ + Return an iterator that returns the next field in a ``(marker, value)`` + tuple, where ``marker`` and ``value`` are unicode strings if an ``encoding`` + was specified in the ``fields()`` method. Otherwise they are non-unicode strings. + + :param strip: strip trailing whitespace from the last line of each field + :type strip: bool + :param unwrap: Convert newlines in a field to spaces. + :type unwrap: bool + :param encoding: Name of an encoding to use. If it is specified then + the ``fields()`` method returns unicode strings rather than non + unicode strings. + :type encoding: str or None + :param errors: Error handling scheme for codec. Same as the ``decode()`` + builtin string method. + :type errors: str + :param unicode_fields: Set of marker names whose values are UTF-8 encoded. + Ignored if encoding is None. If the whole file is UTF-8 encoded set + ``encoding='utf8'`` and leave ``unicode_fields`` with its default + value of None. + :type unicode_fields: sequence + :rtype: iter(tuple(str, str)) + """ + if encoding is None and unicode_fields is not None: + raise ValueError("unicode_fields is set but not encoding.") + unwrap_pat = re.compile(r"\n+") + for mkr, val in self.raw_fields(): + if unwrap: + val = unwrap_pat.sub(" ", val) + if strip: + val = val.rstrip() + yield (mkr, val) + + def close(self): + """Close a previously opened standard format marker file or string.""" + self._file.close() + try: + del self.line_num + except AttributeError: + pass + + +class ToolboxData(StandardFormat): + def parse(self, grammar=None, **kwargs): + if grammar: + return self._chunk_parse(grammar=grammar, **kwargs) + else: + return self._record_parse(**kwargs) + + def _record_parse(self, key=None, **kwargs): + r""" + Returns an element tree structure corresponding to a toolbox data file with + all markers at the same level. + + Thus the following Toolbox database:: + \_sh v3.0 400 Rotokas Dictionary + \_DateStampHasFourDigitYear + + \lx kaa + \ps V.A + \ge gag + \gp nek i pas + + \lx kaa + \ps V.B + \ge strangle + \gp pasim nek + + after parsing will end up with the same structure (ignoring the extra + whitespace) as the following XML fragment after being parsed by + ElementTree:: + +
+ <_sh>v3.0 400 Rotokas Dictionary + <_DateStampHasFourDigitYear/> +
+ + + kaa + V.A + gag + nek i pas + + + + kaa + V.B + strangle + pasim nek + + + + :param key: Name of key marker at the start of each record. If set to + None (the default value) the first marker that doesn't begin with + an underscore is assumed to be the key. + :type key: str + :param kwargs: Keyword arguments passed to ``StandardFormat.fields()`` + :type kwargs: dict + :rtype: ElementTree._ElementInterface + :return: contents of toolbox data divided into header and records + """ + builder = TreeBuilder() + builder.start("toolbox_data", {}) + builder.start("header", {}) + in_records = False + for mkr, value in self.fields(**kwargs): + if key is None and not in_records and mkr[0] != "_": + key = mkr + if mkr == key: + if in_records: + builder.end("record") + else: + builder.end("header") + in_records = True + builder.start("record", {}) + builder.start(mkr, {}) + builder.data(value) + builder.end(mkr) + if in_records: + builder.end("record") + else: + builder.end("header") + builder.end("toolbox_data") + return builder.close() + + def _tree2etree(self, parent): + from nltk.tree import Tree + + root = Element(parent.label()) + for child in parent: + if isinstance(child, Tree): + root.append(self._tree2etree(child)) + else: + text, tag = child + e = SubElement(root, tag) + e.text = text + return root + + def _chunk_parse(self, grammar=None, root_label="record", trace=0, **kwargs): + """ + Returns an element tree structure corresponding to a toolbox data file + parsed according to the chunk grammar. + + :type grammar: str + :param grammar: Contains the chunking rules used to parse the + database. See ``chunk.RegExp`` for documentation. + :type root_label: str + :param root_label: The node value that should be used for the + top node of the chunk structure. + :type trace: int + :param trace: The level of tracing that should be used when + parsing a text. ``0`` will generate no tracing output; + ``1`` will generate normal tracing output; and ``2`` or + higher will generate verbose tracing output. + :type kwargs: dict + :param kwargs: Keyword arguments passed to ``toolbox.StandardFormat.fields()`` + :rtype: ElementTree._ElementInterface + """ + from nltk import chunk + from nltk.tree import Tree + + cp = chunk.RegexpParser(grammar, root_label=root_label, trace=trace) + db = self.parse(**kwargs) + tb_etree = Element("toolbox_data") + header = db.find("header") + tb_etree.append(header) + for record in db.findall("record"): + parsed = cp.parse([(elem.text, elem.tag) for elem in record]) + tb_etree.append(self._tree2etree(parsed)) + return tb_etree + + +_is_value = re.compile(r"\S") + + +def to_sfm_string(tree, encoding=None, errors="strict", unicode_fields=None): + """ + Return a string with a standard format representation of the toolbox + data in tree (tree can be a toolbox database or a single record). + + :param tree: flat representation of toolbox data (whole database or single record) + :type tree: ElementTree._ElementInterface + :param encoding: Name of an encoding to use. + :type encoding: str + :param errors: Error handling scheme for codec. Same as the ``encode()`` + builtin string method. + :type errors: str + :param unicode_fields: + :type unicode_fields: dict(str) or set(str) + :rtype: str + """ + if tree.tag == "record": + root = Element("toolbox_data") + root.append(tree) + tree = root + + if tree.tag != "toolbox_data": + raise ValueError("not a toolbox_data element structure") + if encoding is None and unicode_fields is not None: + raise ValueError( + "if encoding is not specified then neither should unicode_fields" + ) + l = [] + for rec in tree: + l.append("\n") + for field in rec: + mkr = field.tag + value = field.text + if encoding is not None: + if unicode_fields is not None and mkr in unicode_fields: + cur_encoding = "utf8" + else: + cur_encoding = encoding + if re.search(_is_value, value): + l.append((f"\\{mkr} {value}\n").encode(cur_encoding, errors)) + else: + l.append((f"\\{mkr}{value}\n").encode(cur_encoding, errors)) + else: + if re.search(_is_value, value): + l.append(f"\\{mkr} {value}\n") + else: + l.append(f"\\{mkr}{value}\n") + return "".join(l[1:]) + + +class ToolboxSettings(StandardFormat): + """This class is the base class for settings files.""" + + def __init__(self): + super().__init__() + + def parse(self, encoding=None, errors="strict", **kwargs): + """ + Return the contents of toolbox settings file with a nested structure. + + :param encoding: encoding used by settings file + :type encoding: str + :param errors: Error handling scheme for codec. Same as ``decode()`` builtin method. + :type errors: str + :param kwargs: Keyword arguments passed to ``StandardFormat.fields()`` + :type kwargs: dict + :rtype: ElementTree._ElementInterface + """ + builder = TreeBuilder() + for mkr, value in self.fields(encoding=encoding, errors=errors, **kwargs): + # Check whether the first char of the field marker + # indicates a block start (+) or end (-) + block = mkr[0] + if block in ("+", "-"): + mkr = mkr[1:] + else: + block = None + # Build tree on the basis of block char + if block == "+": + builder.start(mkr, {}) + builder.data(value) + elif block == "-": + builder.end(mkr) + else: + builder.start(mkr, {}) + builder.data(value) + builder.end(mkr) + return builder.close() + + +def to_settings_string(tree, encoding=None, errors="strict", unicode_fields=None): + # write XML to file + l = list() + _to_settings_string( + tree.getroot(), + l, + encoding=encoding, + errors=errors, + unicode_fields=unicode_fields, + ) + return "".join(l) + + +def _to_settings_string(node, l, **kwargs): + # write XML to file + tag = node.tag + text = node.text + if len(node) == 0: + if text: + l.append(f"\\{tag} {text}\n") + else: + l.append("\\%s\n" % tag) + else: + if text: + l.append(f"\\+{tag} {text}\n") + else: + l.append("\\+%s\n" % tag) + for n in node: + _to_settings_string(n, l, **kwargs) + l.append("\\-%s\n" % tag) + return + + +def remove_blanks(elem): + """ + Remove all elements and subelements with no text and no child elements. + + :param elem: toolbox data in an elementtree structure + :type elem: ElementTree._ElementInterface + """ + out = list() + for child in elem: + remove_blanks(child) + if child.text or len(child) > 0: + out.append(child) + elem[:] = out + + +def add_default_fields(elem, default_fields): + """ + Add blank elements and subelements specified in default_fields. + + :param elem: toolbox data in an elementtree structure + :type elem: ElementTree._ElementInterface + :param default_fields: fields to add to each type of element and subelement + :type default_fields: dict(tuple) + """ + for field in default_fields.get(elem.tag, []): + if elem.find(field) is None: + SubElement(elem, field) + for child in elem: + add_default_fields(child, default_fields) + + +def sort_fields(elem, field_orders): + """ + Sort the elements and subelements in order specified in field_orders. + + :param elem: toolbox data in an elementtree structure + :type elem: ElementTree._ElementInterface + :param field_orders: order of fields for each type of element and subelement + :type field_orders: dict(tuple) + """ + order_dicts = dict() + for field, order in field_orders.items(): + order_dicts[field] = order_key = dict() + for i, subfield in enumerate(order): + order_key[subfield] = i + _sort_fields(elem, order_dicts) + + +def _sort_fields(elem, orders_dicts): + """sort the children of elem""" + try: + order = orders_dicts[elem.tag] + except KeyError: + pass + else: + tmp = sorted( + ((order.get(child.tag, 1e9), i), child) for i, child in enumerate(elem) + ) + elem[:] = [child for key, child in tmp] + for child in elem: + if len(child): + _sort_fields(child, orders_dicts) + + +def add_blank_lines(tree, blanks_before, blanks_between): + """ + Add blank lines before all elements and subelements specified in blank_before. + + :param elem: toolbox data in an elementtree structure + :type elem: ElementTree._ElementInterface + :param blank_before: elements and subelements to add blank lines before + :type blank_before: dict(tuple) + """ + try: + before = blanks_before[tree.tag] + between = blanks_between[tree.tag] + except KeyError: + for elem in tree: + if len(elem): + add_blank_lines(elem, blanks_before, blanks_between) + else: + last_elem = None + for elem in tree: + tag = elem.tag + if last_elem is not None and last_elem.tag != tag: + if tag in before and last_elem is not None: + e = last_elem.getiterator()[-1] + e.text = (e.text or "") + "\n" + else: + if tag in between: + e = last_elem.getiterator()[-1] + e.text = (e.text or "") + "\n" + if len(elem): + add_blank_lines(elem, blanks_before, blanks_between) + last_elem = elem + + +def demo(): + from itertools import islice + + # zip_path = find('corpora/toolbox.zip') + # lexicon = ToolboxData(ZipFilePathPointer(zip_path, 'toolbox/rotokas.dic')).parse() + file_path = find("corpora/toolbox/rotokas.dic") + lexicon = ToolboxData(file_path).parse() + print("first field in fourth record:") + print(lexicon[3][0].tag) + print(lexicon[3][0].text) + + print("\nfields in sequential order:") + for field in islice(lexicon.find("record"), 10): + print(field.tag, field.text) + + print("\nlx fields:") + for field in islice(lexicon.findall("record/lx"), 10): + print(field.text) + + settings = ToolboxSettings() + file_path = find("corpora/toolbox/MDF/MDF_AltH.typ") + settings.open(file_path) + # settings.open(ZipFilePathPointer(zip_path, entry='toolbox/MDF/MDF_AltH.typ')) + tree = settings.parse(unwrap=False, encoding="cp1252") + print(tree.find("expset/expMDF/rtfPageSetup/paperSize").text) + settings_tree = ElementTree(tree) + print(to_settings_string(settings_tree).encode("utf8")) + + +if __name__ == "__main__": + demo() diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/treeprettyprinter.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/treeprettyprinter.py new file mode 100644 index 0000000000000000000000000000000000000000..5559ed6992cadbdecf806e75d3d4d1b81d087525 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/treeprettyprinter.py @@ -0,0 +1,28 @@ +# Natural Language Toolkit: ASCII visualization of NLTK trees +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Andreas van Cranenburgh +# Peter Ljunglöf +# URL: +# For license information, see LICENSE.TXT + +""" +Pretty-printing of discontinuous trees. +Adapted from the disco-dop project, by Andreas van Cranenburgh. +https://github.com/andreasvc/disco-dop + +Interesting reference (not used for this code): +T. Eschbach et al., Orth. Hypergraph Drawing, Journal of +Graph Algorithms and Applications, 10(2) 141--157 (2006)149. +https://jgaa.info/accepted/2006/EschbachGuentherBecker2006.10.2.pdf +""" + +from nltk.internals import Deprecated +from nltk.tree.prettyprinter import TreePrettyPrinter as TPP + + +class TreePrettyPrinter(Deprecated, TPP): + """Import `TreePrettyPrinter` using `from nltk.tree import TreePrettyPrinter` instead.""" + + +__all__ = ["TreePrettyPrinter"] diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/treetransforms.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/treetransforms.py new file mode 100644 index 0000000000000000000000000000000000000000..d1360618def789157d6e23a4674d59fdcb17ad2d --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/treetransforms.py @@ -0,0 +1,126 @@ +# Natural Language Toolkit: Tree Transformations +# +# Copyright (C) 2005-2007 Oregon Graduate Institute +# Author: Nathan Bodenstab +# URL: +# For license information, see LICENSE.TXT + +r""" +A collection of methods for tree (grammar) transformations used +in parsing natural language. + +Although many of these methods are technically grammar transformations +(ie. Chomsky Norm Form), when working with treebanks it is much more +natural to visualize these modifications in a tree structure. Hence, +we will do all transformation directly to the tree itself. +Transforming the tree directly also allows us to do parent annotation. +A grammar can then be simply induced from the modified tree. + +The following is a short tutorial on the available transformations. + + 1. Chomsky Normal Form (binarization) + + It is well known that any grammar has a Chomsky Normal Form (CNF) + equivalent grammar where CNF is defined by every production having + either two non-terminals or one terminal on its right hand side. + When we have hierarchically structured data (ie. a treebank), it is + natural to view this in terms of productions where the root of every + subtree is the head (left hand side) of the production and all of + its children are the right hand side constituents. In order to + convert a tree into CNF, we simply need to ensure that every subtree + has either two subtrees as children (binarization), or one leaf node + (non-terminal). In order to binarize a subtree with more than two + children, we must introduce artificial nodes. + + There are two popular methods to convert a tree into CNF: left + factoring and right factoring. The following example demonstrates + the difference between them. Example:: + + Original Right-Factored Left-Factored + + A A A + / | \ / \ / \ + B C D ==> B A| OR A| D + / \ / \ + C D B C + + 2. Parent Annotation + + In addition to binarizing the tree, there are two standard + modifications to node labels we can do in the same traversal: parent + annotation and Markov order-N smoothing (or sibling smoothing). + + The purpose of parent annotation is to refine the probabilities of + productions by adding a small amount of context. With this simple + addition, a CYK (inside-outside, dynamic programming chart parse) + can improve from 74% to 79% accuracy. A natural generalization from + parent annotation is to grandparent annotation and beyond. The + tradeoff becomes accuracy gain vs. computational complexity. We + must also keep in mind data sparcity issues. Example:: + + Original Parent Annotation + + A A^ + / | \ / \ + B C D ==> B^ A|^ where ? is the + / \ parent of A + C^ D^ + + + 3. Markov order-N smoothing + + Markov smoothing combats data sparcity issues as well as decreasing + computational requirements by limiting the number of children + included in artificial nodes. In practice, most people use an order + 2 grammar. Example:: + + Original No Smoothing Markov order 1 Markov order 2 etc. + + __A__ A A A + / /|\ \ / \ / \ / \ + B C D E F ==> B A| ==> B A| ==> B A| + / \ / \ / \ + C ... C ... C ... + + + + Annotation decisions can be thought about in the vertical direction + (parent, grandparent, etc) and the horizontal direction (number of + siblings to keep). Parameters to the following functions specify + these values. For more information see: + + Dan Klein and Chris Manning (2003) "Accurate Unlexicalized + Parsing", ACL-03. https://www.aclweb.org/anthology/P03-1054 + + 4. Unary Collapsing + + Collapse unary productions (ie. subtrees with a single child) into a + new non-terminal (Tree node). This is useful when working with + algorithms that do not allow unary productions, yet you do not wish + to lose the parent information. Example:: + + A + | + B ==> A+B + / \ / \ + C D C D + +""" + +from nltk.internals import deprecated +from nltk.tree.transforms import chomsky_normal_form as cnf +from nltk.tree.transforms import collapse_unary as cu +from nltk.tree.transforms import un_chomsky_normal_form as ucnf + +chomsky_normal_form = deprecated( + "Import using `from nltk.tree import chomsky_normal_form` instead." +)(cnf) +un_chomsky_normal_form = deprecated( + "Import using `from nltk.tree import un_chomsky_normal_form` instead." +)(ucnf) +collapse_unary = deprecated( + "Import using `from nltk.tree import collapse_unary` instead." +)(cu) + + +__all__ = ["chomsky_normal_form", "un_chomsky_normal_form", "collapse_unary"] diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/util.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/util.py new file mode 100644 index 0000000000000000000000000000000000000000..90a4a2e5c69cbcb101efc492639163f7650a2dcc --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/util.py @@ -0,0 +1,1347 @@ +# Natural Language Toolkit: Utility functions +# +# Copyright (C) 2001-2026 NLTK Project +# Author: Steven Bird +# Eric Kafe (acyclic closures) +# URL: +# For license information, see LICENSE.TXT +import inspect +import locale +import os +import pydoc +import re +import textwrap +import unicodedata +import warnings +from collections import defaultdict, deque +from itertools import chain, combinations, islice, tee +from pathlib import Path +from pprint import pprint +from urllib.request import ( + HTTPPasswordMgrWithDefaultRealm, + ProxyBasicAuthHandler, + ProxyDigestAuthHandler, + ProxyHandler, + build_opener, + getproxies, + install_opener, +) + +from nltk.collections import * +from nltk.internals import deprecated, raise_unorderable_types, slice_bounds +from nltk.pathsec import open as _secure_open + +###################################################################### +# Short usage message +###################################################################### + + +@deprecated("Use help(obj) instead.") +def usage(obj): + str(obj) # In case it's lazy, this will load it. + + if not isinstance(obj, type): + obj = obj.__class__ + + print(f"{obj.__name__} supports the following operations:") + for name, method in sorted(pydoc.allmethods(obj).items()): + if name.startswith("_"): + continue + if getattr(method, "__deprecated__", False): + continue + + try: + sig = str(inspect.signature(method)) + except ValueError as e: + # builtins sometimes don't support introspection + if "builtin" in str(e): + continue + else: + raise + + args = sig.lstrip("(").rstrip(")").split(", ") + meth = inspect.getattr_static(obj, name) + if isinstance(meth, (classmethod, staticmethod)): + name = f"cls.{name}" + elif args and args[0] == "self": + name = f"self.{name}" + args.pop(0) + print( + textwrap.fill( + f"{name}({', '.join(args)})", + initial_indent=" - ", + subsequent_indent=" " * (len(name) + 5), + ) + ) + + +########################################################################## +# IDLE +########################################################################## + + +def in_idle(): + """ + Return True if this function is run within idle. Tkinter + programs that are run in idle should never call ``Tk.mainloop``; so + this function should be used to gate all calls to ``Tk.mainloop``. + + :warning: This function works by checking ``sys.stdin``. If the + user has modified ``sys.stdin``, then it may return incorrect + results. + :rtype: bool + """ + import sys + + return sys.stdin.__class__.__name__ in ("PyShell", "RPCProxy") + + +########################################################################## +# PRETTY PRINTING +########################################################################## + + +def pr(data, start=0, end=None): + """ + Pretty print a sequence of data items + + :param data: the data stream to print + :type data: sequence or iter + :param start: the start position + :type start: int + :param end: the end position + :type end: int + """ + pprint(list(islice(data, start, end))) + + +def print_string(s, width=70): + """ + Pretty print a string, breaking lines on whitespace + + :param s: the string to print, consisting of words and spaces + :type s: str + :param width: the display width + :type width: int + """ + print("\n".join(textwrap.wrap(s, width=width))) + + +def tokenwrap(tokens, separator=" ", width=70): + """ + Pretty print a list of text tokens, breaking lines on whitespace + + :param tokens: the tokens to print + :type tokens: list + :param separator: the string to use to separate tokens + :type separator: str + :param width: the display width (default=70) + :type width: int + """ + return "\n".join(textwrap.wrap(separator.join(tokens), width=width)) + + +def cut_string(s, width=70): + """ + Cut off and return a given width of a string + + Return the same as s[:width] if width >= 0 or s[-width:] if + width < 0, as long as s has no unicode combining characters. + If it has combining characters make sure the returned string's + visible width matches the called-for width. + + :param s: the string to cut + :type s: str + :param width: the display_width + :type width: int + """ + chars_sofar = 0 + width_sofar = 0 + result = "" + + abs_width = abs(width) + max_chars = len(s) + while width_sofar < abs_width and chars_sofar < max_chars: + if width < 0: + char = s[-(chars_sofar + 1)] + result = char + result + else: + char = s[chars_sofar] + result = result + char + + chars_sofar += 1 + if not unicodedata.combining(char): + width_sofar += 1 + + return result + + +########################################################################## +# Indexing +########################################################################## + + +class Index(defaultdict): + def __init__(self, pairs): + defaultdict.__init__(self, list) + for key, value in pairs: + self[key].append(value) + + +###################################################################### +## Regexp display (thanks to David Mertz) +###################################################################### + + +def re_show(regexp, string, left="{", right="}"): + """ + Return a string with markers surrounding the matched substrings. + Search str for substrings matching ``regexp`` and wrap the matches + with braces. This is convenient for learning about regular expressions. + + :param regexp: The regular expression. + :type regexp: str + :param string: The string being matched. + :type string: str + :param left: The left delimiter (printed before the matched substring) + :type left: str + :param right: The right delimiter (printed after the matched substring) + :type right: str + :rtype: str + """ + print(re.compile(regexp, re.M).sub(left + r"\g<0>" + right, string.rstrip())) + + +########################################################################## +# READ FROM FILE OR STRING +########################################################################## + + +# recipe from David Mertz +def filestring(f, allowed_dir=None): + """ + Read a file path or file-like object into a string. + + Security: + - Paths are resolved via ``Path.resolve()`` to prevent + symlink and ``../`` traversal attacks. + - If ``allowed_dir`` is provided, the resolved path must + fall within that directory tree. + - All file opens go through ``pathsec.open``, which + validates paths against NLTK's allowed data roots. + - File-like objects with a ``.read()`` method are passed + through without path checks. + + :param f: a file path or file-like object with a ``.read()`` method + :param allowed_dir: if provided, restricts file access to paths + within this directory; raises ``PermissionError`` if the + resolved path falls outside it + :raises PermissionError: if ``allowed_dir`` is set and ``f`` + resolves outside it, or if pathsec blocks the path + :rtype: str + """ + if hasattr(f, "read"): + return f.read() + elif isinstance(f, str): + # FIX: Resolve the path once to prevent symlink/rename races + target_path = Path(f).resolve() + + if allowed_dir is not None: + safe_root = Path(allowed_dir).resolve() + # FIX: Use is_relative_to for robust boundary check + if not target_path.is_relative_to(safe_root): + raise PermissionError( + f"Security Violation: Path {target_path} is outside allowed_dir {safe_root}" + ) + + # FIX: Use _secure_open with the resolved target_path + with _secure_open(target_path, encoding="utf-8", errors="ignore") as infile: + return infile.read() + + # Fallback for other types + try: + with _secure_open(f, encoding="utf-8", errors="ignore") as infile: + return infile.read() + except UnicodeDecodeError: + with _secure_open(f, encoding="latin-1") as infile: + return infile.read() + + +########################################################################## +# Breadth-First Search +########################################################################## + + +def breadth_first(tree, children=iter, maxdepth=-1): + """Traverse the nodes of a tree in breadth-first order. + (No check for cycles.) + The first argument should be the tree root; + children should be a function taking as argument a tree node + and returning an iterator of the node's children. + """ + queue = deque([(tree, 0)]) + + while queue: + node, depth = queue.popleft() + yield node + + if depth != maxdepth: + try: + queue.extend((c, depth + 1) for c in children(node)) + except TypeError: + pass + + +########################################################################## +# Graph Drawing +########################################################################## + + +def edge_closure(tree, children=iter, maxdepth=-1, verbose=False): + """ + :param tree: the tree root + :param children: a function taking as argument a tree node + :param maxdepth: to limit the search depth + :param verbose: to print warnings when cycles are discarded + + Yield the edges of a graph in breadth-first order, + discarding eventual cycles. + The first argument should be the start node; + children should be a function taking as argument a graph node + and returning an iterator of the node's children. + + >>> from nltk.util import edge_closure + >>> print(list(edge_closure('A', lambda node:{'A':['B','C'], 'B':'C', 'C':'B'}[node]))) + [('A', 'B'), ('A', 'C'), ('B', 'C'), ('C', 'B')] + """ + traversed = set() + edges = set() + queue = deque([(tree, 0)]) + while queue: + node, depth = queue.popleft() + traversed.add(node) + if depth != maxdepth: + try: + for child in children(node): + if child not in traversed: + queue.append((child, depth + 1)) + else: + if verbose: + warnings.warn( + f"Discarded redundant search for {child} at depth {depth + 1}", + stacklevel=2, + ) + edge = (node, child) + if edge not in edges: + yield edge + edges.add(edge) + except TypeError: + pass + + +def edges2dot(edges, shapes=None, attr=None): + """ + :param edges: the set (or list) of edges of a directed graph. + :param shapes: dictionary of strings that trigger a specified shape. + :param attr: dictionary with global graph attributes + :return: a representation of 'edges' as a string in the DOT graph language. + + Returns dot_string: a representation of 'edges' as a string in the DOT + graph language, which can be converted to an image by the 'dot' program + from the Graphviz package, or nltk.parse.dependencygraph.dot2img(dot_string). + + >>> import nltk + >>> from nltk.util import edges2dot + >>> print(edges2dot([('A', 'B'), ('A', 'C'), ('B', 'C'), ('C', 'B')])) + digraph G { + "A" -> "B"; + "A" -> "C"; + "B" -> "C"; + "C" -> "B"; + } + + """ + if not shapes: + shapes = dict() + if not attr: + attr = dict() + + dot_string = "digraph G {\n" + + for pair in attr.items(): + dot_string += f"{pair[0]} = {pair[1]};\n" + + for edge in edges: + for shape in shapes.items(): + for node in range(2): + if shape[0] in repr(edge[node]): + dot_string += f'"{edge[node]}" [shape = {shape[1]}];\n' + dot_string += f'"{edge[0]}" -> "{edge[1]}";\n' + + dot_string += "}\n" + return dot_string + + +def unweighted_minimum_spanning_digraph(tree, children=iter, shapes=None, attr=None): + """ + :param tree: the tree root + :param children: a function taking as argument a tree node + :param shapes: dictionary of strings that trigger a specified shape. + :param attr: dictionary with global graph attributes + + Build a Minimum Spanning Tree (MST) of an unweighted graph, + by traversing the nodes of a tree in breadth-first order, + discarding eventual cycles. + + Return a representation of this MST as a string in the DOT graph language, + which can be converted to an image by the 'dot' program from the Graphviz + package, or nltk.parse.dependencygraph.dot2img(dot_string). + + The first argument should be the tree root; + children should be a function taking as argument a tree node + and returning an iterator of the node's children. + + >>> import nltk + >>> wn=nltk.corpus.wordnet + >>> from nltk.util import unweighted_minimum_spanning_digraph as umsd + >>> print(umsd(wn.synset('bound.a.01'), lambda s:sorted(s.also_sees()))) + digraph G { + "Synset('bound.a.01')" -> "Synset('unfree.a.02')"; + "Synset('unfree.a.02')" -> "Synset('confined.a.02')"; + "Synset('unfree.a.02')" -> "Synset('dependent.a.01')"; + "Synset('unfree.a.02')" -> "Synset('restricted.a.01')"; + "Synset('restricted.a.01')" -> "Synset('classified.a.02')"; + } + + """ + return edges2dot( + edge_closure( + tree, lambda node: unweighted_minimum_spanning_dict(tree, children)[node] + ), + shapes, + attr, + ) + + +########################################################################## +# Breadth-First / Depth-first Searches with Cycle Detection +########################################################################## + + +def acyclic_breadth_first(tree, children=iter, maxdepth=-1, verbose=False): + """ + :param tree: the tree root + :param children: a function taking as argument a tree node + :param maxdepth: to limit the search depth + :param verbose: to print warnings when cycles are discarded + :return: the tree in breadth-first order + + Adapted from breadth_first() above, to discard cycles. + Traverse the nodes of a tree in breadth-first order, + discarding eventual cycles. + + The first argument should be the tree root; + children should be a function taking as argument a tree node + and returning an iterator of the node's children. + """ + traversed = set() + queue = deque([(tree, 0)]) + while queue: + node, depth = queue.popleft() + if node in traversed: + continue + yield node + traversed.add(node) + if depth != maxdepth: + try: + for child in children(node): + if child not in traversed: + queue.append((child, depth + 1)) + elif verbose: + warnings.warn( + "Discarded redundant search for {} at depth {}".format( + child, depth + 1 + ), + stacklevel=2, + ) + except TypeError: + pass + + +def acyclic_depth_first( + tree, children=iter, depth=-1, cut_mark=None, traversed=None, verbose=False +): + """ + :param tree: the tree root + :param children: a function taking as argument a tree node + :param depth: the maximum depth of the search + :param cut_mark: the mark to add when cycles are truncated + :param traversed: the set of traversed nodes + :param verbose: to print warnings when cycles are discarded + :return: the tree in depth-first order + + Traverse the nodes of a tree in depth-first order, + discarding eventual cycles within any branch, + adding cut_mark (when specified) if cycles were truncated. + The first argument should be the tree root; + children should be a function taking as argument a tree node + and returning an iterator of the node's children. + + Catches all cycles: + + >>> import nltk + >>> from nltk.util import acyclic_depth_first as acyclic_tree + >>> wn=nltk.corpus.wordnet + >>> from pprint import pprint + >>> pprint(acyclic_tree(wn.synset('dog.n.01'), lambda s:sorted(s.hypernyms()),cut_mark='...')) + [Synset('dog.n.01'), + [Synset('canine.n.02'), + [Synset('carnivore.n.01'), + [Synset('placental.n.01'), + [Synset('mammal.n.01'), + [Synset('vertebrate.n.01'), + [Synset('chordate.n.01'), + [Synset('animal.n.01'), + [Synset('organism.n.01'), + [Synset('living_thing.n.01'), + [Synset('whole.n.02'), + [Synset('object.n.01'), + [Synset('physical_entity.n.01'), + [Synset('entity.n.01')]]]]]]]]]]]]], + [Synset('domestic_animal.n.01'), "Cycle(Synset('animal.n.01'),-3,...)"]] + """ + if traversed is None: + traversed = {tree} + out_tree = [tree] + if depth != 0: + try: + for child in children(tree): + if child not in traversed: + # Recurse with a common "traversed" set for all children: + traversed.add(child) + out_tree += [ + acyclic_depth_first( + child, children, depth - 1, cut_mark, traversed + ) + ] + else: + if verbose: + warnings.warn( + "Discarded redundant search for {} at depth {}".format( + child, depth - 1 + ), + stacklevel=3, + ) + if cut_mark: + out_tree += [f"Cycle({child},{depth - 1},{cut_mark})"] + except TypeError: + pass + elif cut_mark: + out_tree += [cut_mark] + return out_tree + + +def acyclic_branches_depth_first( + tree, children=iter, depth=-1, cut_mark=None, traversed=None, verbose=False +): + """ + :param tree: the tree root + :param children: a function taking as argument a tree node + :param depth: the maximum depth of the search + :param cut_mark: the mark to add when cycles are truncated + :param traversed: the set of traversed nodes + :param verbose: to print warnings when cycles are discarded + :return: the tree in depth-first order + + Adapted from acyclic_depth_first() above, to + traverse the nodes of a tree in depth-first order, + discarding eventual cycles within the same branch, + but keep duplicate paths in different branches. + Add cut_mark (when defined) if cycles were truncated. + + The first argument should be the tree root; + children should be a function taking as argument a tree node + and returning an iterator of the node's children. + + Catches only only cycles within the same branch, + but keeping cycles from different branches: + + >>> import nltk + >>> from nltk.util import acyclic_branches_depth_first as tree + >>> wn=nltk.corpus.wordnet + >>> from pprint import pprint + >>> pprint(tree(wn.synset('certified.a.01'), lambda s:sorted(s.also_sees()), cut_mark='...', depth=4)) + [Synset('certified.a.01'), + [Synset('authorized.a.01'), + [Synset('lawful.a.01'), + [Synset('legal.a.01'), + "Cycle(Synset('lawful.a.01'),0,...)", + [Synset('legitimate.a.01'), '...']], + [Synset('straight.a.06'), + [Synset('honest.a.01'), '...'], + "Cycle(Synset('lawful.a.01'),0,...)"]], + [Synset('legitimate.a.01'), + "Cycle(Synset('authorized.a.01'),1,...)", + [Synset('legal.a.01'), + [Synset('lawful.a.01'), '...'], + "Cycle(Synset('legitimate.a.01'),0,...)"], + [Synset('valid.a.01'), + "Cycle(Synset('legitimate.a.01'),0,...)", + [Synset('reasonable.a.01'), '...']]], + [Synset('official.a.01'), "Cycle(Synset('authorized.a.01'),1,...)"]], + [Synset('documented.a.01')]] + """ + if traversed is None: + traversed = {tree} + out_tree = [tree] + if depth != 0: + try: + for child in children(tree): + if child not in traversed: + # Recurse with a different "traversed" set for each child: + out_tree += [ + acyclic_branches_depth_first( + child, + children, + depth - 1, + cut_mark, + traversed.union({child}), + ) + ] + else: + if verbose: + warnings.warn( + "Discarded redundant search for {} at depth {}".format( + child, depth - 1 + ), + stacklevel=3, + ) + if cut_mark: + out_tree += [f"Cycle({child},{depth - 1},{cut_mark})"] + except TypeError: + pass + elif cut_mark: + out_tree += [cut_mark] + return out_tree + + +def acyclic_dic2tree(node, dic): + """ + :param node: the root node + :param dic: the dictionary of children + + Convert acyclic dictionary 'dic', where the keys are nodes, and the + values are lists of children, to output tree suitable for pprint(), + starting at root 'node', with subtrees as nested lists.""" + return [node] + [acyclic_dic2tree(child, dic) for child in dic[node]] + + +def unweighted_minimum_spanning_dict(tree, children=iter): + """ + :param tree: the tree root + :param children: a function taking as argument a tree node + + Output a dictionary representing a Minimum Spanning Tree (MST) + of an unweighted graph, by traversing the nodes of a tree in + breadth-first order, discarding eventual cycles. + + The first argument should be the tree root; + children should be a function taking as argument a tree node + and returning an iterator of the node's children. + + >>> import nltk + >>> from nltk.corpus import wordnet as wn + >>> from nltk.util import unweighted_minimum_spanning_dict as umsd + >>> from pprint import pprint + >>> pprint(umsd(wn.synset('bound.a.01'), lambda s:sorted(s.also_sees()))) + {Synset('bound.a.01'): [Synset('unfree.a.02')], + Synset('classified.a.02'): [], + Synset('confined.a.02'): [], + Synset('dependent.a.01'): [], + Synset('restricted.a.01'): [Synset('classified.a.02')], + Synset('unfree.a.02'): [Synset('confined.a.02'), + Synset('dependent.a.01'), + Synset('restricted.a.01')]} + + """ + traversed = set() # Empty set of traversed nodes + queue = deque([tree]) # Initialize queue + agenda = {tree} # Set of all nodes ever queued + mstdic = {} # Empty MST dictionary + while queue: + node = queue.popleft() # Node is not yet in the MST dictionary, + mstdic[node] = [] # so add it with an empty list of children + if node not in traversed: # Avoid cycles + traversed.add(node) + for child in children(node): + if child not in agenda: # Queue nodes only once + mstdic[node].append(child) # Add child to the MST + queue.append(child) # Add child to queue + agenda.add(child) + return mstdic + + +def unweighted_minimum_spanning_tree(tree, children=iter): + """ + :param tree: the tree root + :param children: a function taking as argument a tree node + + Output a Minimum Spanning Tree (MST) of an unweighted graph, + by traversing the nodes of a tree in breadth-first order, + discarding eventual cycles. + + The first argument should be the tree root; + children should be a function taking as argument a tree node + and returning an iterator of the node's children. + + >>> import nltk + >>> from nltk.util import unweighted_minimum_spanning_tree as mst + >>> wn=nltk.corpus.wordnet + >>> from pprint import pprint + >>> pprint(mst(wn.synset('bound.a.01'), lambda s:sorted(s.also_sees()))) + [Synset('bound.a.01'), + [Synset('unfree.a.02'), + [Synset('confined.a.02')], + [Synset('dependent.a.01')], + [Synset('restricted.a.01'), [Synset('classified.a.02')]]]] + """ + return acyclic_dic2tree(tree, unweighted_minimum_spanning_dict(tree, children)) + + +########################################################################## +# Guess Character Encoding +########################################################################## + +# adapted from io.py in the docutils extension module (https://docutils.sourceforge.io/) +# http://www.pyzine.com/Issue008/Section_Articles/article_Encodings.html + + +def guess_encoding(data): + """ + Given a byte string, attempt to decode it. + Tries the standard 'UTF8' and 'latin-1' encodings, + Plus several gathered from locale information. + + The calling program *must* first call:: + + locale.setlocale(locale.LC_ALL, '') + + If successful it returns ``(decoded_unicode, successful_encoding)``. + If unsuccessful it raises a ``UnicodeError``. + """ + successful_encoding = None + # we make 'utf-8' the first encoding + encodings = ["utf-8"] + # + # next we add anything we can learn from the locale + try: + encodings.append(locale.nl_langinfo(locale.CODESET)) + except AttributeError: + pass + try: + encodings.append(locale.getlocale()[1]) + except (AttributeError, IndexError): + pass + try: + encodings.append(locale.getdefaultlocale()[1]) + except (AttributeError, IndexError): + pass + # + # we try 'latin-1' last + encodings.append("latin-1") + for enc in encodings: + # some of the locale calls + # may have returned None + if not enc: + continue + try: + decoded = str(data, enc) + successful_encoding = enc + + except (UnicodeError, LookupError): + pass + else: + break + if not successful_encoding: + raise UnicodeError( + "Unable to decode input data. " + "Tried the following encodings: %s." + % ", ".join([repr(enc) for enc in encodings if enc]) + ) + else: + return (decoded, successful_encoding) + + +########################################################################## +# Remove repeated elements from a list deterministcally +########################################################################## + + +def unique_list(xs): + seen = set() + # not seen.add(x) here acts to make the code shorter without using if statements, seen.add(x) always returns None. + return [x for x in xs if x not in seen and not seen.add(x)] + + +########################################################################## +# Invert a dictionary +########################################################################## + + +def invert_dict(d): + inverted_dict = defaultdict(list) + for key in d: + if hasattr(d[key], "__iter__"): + for term in d[key]: + inverted_dict[term].append(key) + else: + inverted_dict[d[key]] = key + return inverted_dict + + +########################################################################## +# Utilities for directed graphs: transitive closure, and inversion +# The graph is represented as a dictionary of sets +########################################################################## + + +def transitive_closure(graph, reflexive=False): + """ + Calculate the transitive closure of a directed graph, + optionally the reflexive transitive closure. + + The algorithm is a slight modification of the "Marking Algorithm" of + Ioannidis & Ramakrishnan (1998) "Efficient Transitive Closure Algorithms". + + :param graph: the initial graph, represented as a dictionary of sets + :type graph: dict(set) + :param reflexive: if set, also make the closure reflexive + :type reflexive: bool + :rtype: dict(set) + """ + if reflexive: + base_set = lambda k: {k} + else: + base_set = lambda k: set() + # The graph U_i in the article: + agenda_graph = {k: graph[k].copy() for k in graph} + # The graph M_i in the article: + closure_graph = {k: base_set(k) for k in graph} + for i in graph: + agenda = agenda_graph[i] + closure = closure_graph[i] + while agenda: + j = agenda.pop() + closure.add(j) + closure |= closure_graph.setdefault(j, base_set(j)) + agenda |= agenda_graph.get(j, base_set(j)) + agenda -= closure + return closure_graph + + +def invert_graph(graph): + """ + Inverts a directed graph. + + :param graph: the graph, represented as a dictionary of sets + :type graph: dict(set) + :return: the inverted graph + :rtype: dict(set) + """ + inverted = {} + for key in graph: + for value in graph[key]: + inverted.setdefault(value, set()).add(key) + return inverted + + +########################################################################## +# HTML Cleaning +########################################################################## + + +def clean_html(html): + raise NotImplementedError( + "To remove HTML markup, use BeautifulSoup's get_text() function" + ) + + +def clean_url(url): + raise NotImplementedError( + "To remove HTML markup, use BeautifulSoup's get_text() function" + ) + + +########################################################################## +# FLATTEN LISTS +########################################################################## + + +def flatten(*args): + """ + Flatten a list. + + >>> from nltk.util import flatten + >>> flatten(1, 2, ['b', 'a' , ['c', 'd']], 3) + [1, 2, 'b', 'a', 'c', 'd', 3] + + :param args: items and lists to be combined into a single list + :rtype: list + """ + + x = [] + for l in args: + if not isinstance(l, (list, tuple)): + l = [l] + for item in l: + if isinstance(item, (list, tuple)): + x.extend(flatten(item)) + else: + x.append(item) + return x + + +########################################################################## +# Ngram iteration +########################################################################## + + +def pad_sequence( + sequence, + n, + pad_left=False, + pad_right=False, + left_pad_symbol=None, + right_pad_symbol=None, +): + """ + Returns a padded sequence of items before ngram extraction. + + >>> list(pad_sequence([1,2,3,4,5], 2, pad_left=True, pad_right=True, left_pad_symbol='', right_pad_symbol='')) + ['', 1, 2, 3, 4, 5, ''] + >>> list(pad_sequence([1,2,3,4,5], 2, pad_left=True, left_pad_symbol='')) + ['', 1, 2, 3, 4, 5] + >>> list(pad_sequence([1,2,3,4,5], 2, pad_right=True, right_pad_symbol='')) + [1, 2, 3, 4, 5, ''] + + :param sequence: the source data to be padded + :type sequence: sequence or iter + :param n: the degree of the ngrams + :type n: int + :param pad_left: whether the ngrams should be left-padded + :type pad_left: bool + :param pad_right: whether the ngrams should be right-padded + :type pad_right: bool + :param left_pad_symbol: the symbol to use for left padding (default is None) + :type left_pad_symbol: any + :param right_pad_symbol: the symbol to use for right padding (default is None) + :type right_pad_symbol: any + :rtype: sequence or iter + """ + sequence = iter(sequence) + if pad_left: + sequence = chain((left_pad_symbol,) * (n - 1), sequence) + if pad_right: + sequence = chain(sequence, (right_pad_symbol,) * (n - 1)) + return sequence + + +# add a flag to pad the sequence so we get peripheral ngrams? + + +def ngrams(sequence, n, **kwargs): + """ + Return the ngrams generated from a sequence of items, as an iterator. + For example: + + >>> from nltk.util import ngrams + >>> list(ngrams([1,2,3,4,5], 3)) + [(1, 2, 3), (2, 3, 4), (3, 4, 5)] + + Wrap with list for a list version of this function. Set pad_left + or pad_right to true in order to get additional ngrams: + + >>> list(ngrams([1,2,3,4,5], 2, pad_right=True)) + [(1, 2), (2, 3), (3, 4), (4, 5), (5, None)] + >>> list(ngrams([1,2,3,4,5], 2, pad_right=True, right_pad_symbol='')) + [(1, 2), (2, 3), (3, 4), (4, 5), (5, '')] + >>> list(ngrams([1,2,3,4,5], 2, pad_left=True, left_pad_symbol='')) + [('', 1), (1, 2), (2, 3), (3, 4), (4, 5)] + >>> list(ngrams([1,2,3,4,5], 2, pad_left=True, pad_right=True, left_pad_symbol='', right_pad_symbol='')) + [('', 1), (1, 2), (2, 3), (3, 4), (4, 5), (5, '')] + + + :param sequence: the source data to be converted into ngrams + :type sequence: sequence or iter + :param n: the degree of the ngrams + :type n: int + :param pad_left: whether the ngrams should be left-padded + :type pad_left: bool + :param pad_right: whether the ngrams should be right-padded + :type pad_right: bool + :param left_pad_symbol: the symbol to use for left padding (default is None) + :type left_pad_symbol: any + :param right_pad_symbol: the symbol to use for right padding (default is None) + :type right_pad_symbol: any + :rtype: sequence or iter + """ + sequence = pad_sequence(sequence, n, **kwargs) + + # sliding_window('ABCDEFG', 4) --> ABCD BCDE CDEF DEFG + # https://docs.python.org/3/library/itertools.html?highlight=sliding_window#itertools-recipes + it = iter(sequence) + window = deque(islice(it, n), maxlen=n) + if len(window) == n: + yield tuple(window) + for x in it: + window.append(x) + yield tuple(window) + + +def bigrams(sequence, **kwargs): + """ + Return the bigrams generated from a sequence of items, as an iterator. + For example: + + >>> from nltk.util import bigrams + >>> list(bigrams([1,2,3,4,5])) + [(1, 2), (2, 3), (3, 4), (4, 5)] + + Use bigrams for a list version of this function. + + :param sequence: the source data to be converted into bigrams + :type sequence: sequence or iter + :rtype: iter(tuple) + """ + + yield from ngrams(sequence, 2, **kwargs) + + +def trigrams(sequence, **kwargs): + """ + Return the trigrams generated from a sequence of items, as an iterator. + For example: + + >>> from nltk.util import trigrams + >>> list(trigrams([1,2,3,4,5])) + [(1, 2, 3), (2, 3, 4), (3, 4, 5)] + + Use trigrams for a list version of this function. + + :param sequence: the source data to be converted into trigrams + :type sequence: sequence or iter + :rtype: iter(tuple) + """ + + yield from ngrams(sequence, 3, **kwargs) + + +def everygrams( + sequence, min_len=1, max_len=-1, pad_left=False, pad_right=False, **kwargs +): + """ + Returns all possible ngrams generated from a sequence of items, as an iterator. + + >>> sent = 'a b c'.split() + + New version outputs for everygrams. + >>> list(everygrams(sent)) + [('a',), ('a', 'b'), ('a', 'b', 'c'), ('b',), ('b', 'c'), ('c',)] + + Old version outputs for everygrams. + >>> sorted(everygrams(sent), key=len) + [('a',), ('b',), ('c',), ('a', 'b'), ('b', 'c'), ('a', 'b', 'c')] + + >>> list(everygrams(sent, max_len=2)) + [('a',), ('a', 'b'), ('b',), ('b', 'c'), ('c',)] + + :param sequence: the source data to be converted into ngrams. If max_len is + not provided, this sequence will be loaded into memory + :type sequence: sequence or iter + :param min_len: minimum length of the ngrams, aka. n-gram order/degree of ngram + :type min_len: int + :param max_len: maximum length of the ngrams (set to length of sequence by default) + :type max_len: int + :param pad_left: whether the ngrams should be left-padded + :type pad_left: bool + :param pad_right: whether the ngrams should be right-padded + :type pad_right: bool + :rtype: iter(tuple) + """ + + # Get max_len for padding. + if max_len == -1: + try: + max_len = len(sequence) + except TypeError: + sequence = list(sequence) + max_len = len(sequence) + + # Pad if indicated using max_len. + sequence = pad_sequence(sequence, max_len, pad_left, pad_right, **kwargs) + + # Sliding window to store grams. + history = list(islice(sequence, max_len)) + + # Yield ngrams from sequence. + while history: + for ngram_len in range(min_len, len(history) + 1): + yield tuple(history[:ngram_len]) + + # Append element to history if sequence has more items. + try: + history.append(next(sequence)) + except StopIteration: + pass + + del history[0] + + +def skipgrams(sequence, n, k, **kwargs): + """ + Returns all possible skipgrams generated from a sequence of items, as an iterator. + Skipgrams are ngrams that allows tokens to be skipped. + Refer to http://homepages.inf.ed.ac.uk/ballison/pdf/lrec_skipgrams.pdf + + >>> sent = "Insurgents killed in ongoing fighting".split() + >>> list(skipgrams(sent, 2, 2)) + [('Insurgents', 'killed'), ('Insurgents', 'in'), ('Insurgents', 'ongoing'), ('killed', 'in'), ('killed', 'ongoing'), ('killed', 'fighting'), ('in', 'ongoing'), ('in', 'fighting'), ('ongoing', 'fighting')] + >>> list(skipgrams(sent, 3, 2)) + [('Insurgents', 'killed', 'in'), ('Insurgents', 'killed', 'ongoing'), ('Insurgents', 'killed', 'fighting'), ('Insurgents', 'in', 'ongoing'), ('Insurgents', 'in', 'fighting'), ('Insurgents', 'ongoing', 'fighting'), ('killed', 'in', 'ongoing'), ('killed', 'in', 'fighting'), ('killed', 'ongoing', 'fighting'), ('in', 'ongoing', 'fighting')] + + :param sequence: the source data to be converted into trigrams + :type sequence: sequence or iter + :param n: the degree of the ngrams + :type n: int + :param k: the skip distance + :type k: int + :rtype: iter(tuple) + """ + + # Pads the sequence as desired by **kwargs. + if "pad_left" in kwargs or "pad_right" in kwargs: + sequence = pad_sequence(sequence, n, **kwargs) + + # Note when iterating through the ngrams, the pad_right here is not + # the **kwargs padding, it's for the algorithm to detect the SENTINEL + # object on the right pad to stop inner loop. + SENTINEL = object() + for ngram in ngrams(sequence, n + k, pad_right=True, right_pad_symbol=SENTINEL): + head = ngram[:1] + tail = ngram[1:] + for skip_tail in combinations(tail, n - 1): + if skip_tail[-1] is SENTINEL: + continue + yield head + skip_tail + + +###################################################################### +# Binary Search in a File +###################################################################### + + +# inherited from pywordnet, by Oliver Steele +def binary_search_file(file, key, cache=None, cacheDepth=-1): + """ + Return the line from the file with first word key. + Searches through a sorted file using the binary search algorithm. + + :type file: file + :param file: the file to be searched through. + :type key: str + :param key: the identifier we are searching for. + """ + + key = key + " " + keylen = len(key) + start = 0 + currentDepth = 0 + + if hasattr(file, "name"): + end = os.stat(file.name).st_size - 1 + else: + file.seek(0, 2) + end = file.tell() - 1 + file.seek(0) + + if cache is None: + cache = {} + + while start < end: + lastState = start, end + middle = (start + end) // 2 + + if cache.get(middle): + offset, line = cache[middle] + + else: + line = "" + while True: + file.seek(max(0, middle - 1)) + if middle > 0: + file.discard_line() + offset = file.tell() + line = file.readline() + if line != "": + break + # at EOF; try to find start of the last line + middle = (start + middle) // 2 + if middle == end - 1: + return None + if currentDepth < cacheDepth: + cache[middle] = (offset, line) + + if offset > end: + assert end != middle - 1, "infinite loop" + end = middle - 1 + elif line[:keylen] == key: + return line + elif line > key: + assert end != middle - 1, "infinite loop" + end = middle - 1 + elif line < key: + start = offset + len(line) - 1 + + currentDepth += 1 + thisState = start, end + + if lastState == thisState: + # Detects the condition where we're searching past the end + # of the file, which is otherwise difficult to detect + return None + + return None + + +###################################################################### +# Proxy configuration +###################################################################### + + +def set_proxy(proxy, user=None, password=""): + """ + Set the HTTP proxy for Python to download through. + + If ``proxy`` is None then tries to set proxy from environment or system + settings. + + :param proxy: The HTTP proxy server to use. For example: + 'http://proxy.example.com:3128/' + :param user: The username to authenticate with. Use None to disable + authentication. + :param password: The password to authenticate with. + """ + if proxy is None: + # Try and find the system proxy settings + try: + proxy = getproxies()["http"] + except KeyError as e: + raise ValueError("Could not detect default proxy settings") from e + + # Set up the proxy handler + proxy_handler = ProxyHandler({"https": proxy, "http": proxy}) + opener = build_opener(proxy_handler) + + if user is not None: + # Set up basic proxy authentication if provided + password_manager = HTTPPasswordMgrWithDefaultRealm() + password_manager.add_password(realm=None, uri=proxy, user=user, passwd=password) + opener.add_handler(ProxyBasicAuthHandler(password_manager)) + opener.add_handler(ProxyDigestAuthHandler(password_manager)) + + # Override the existing url opener + install_opener(opener) + + +###################################################################### +# ElementTree pretty printing from https://www.effbot.org/zone/element-lib.htm +###################################################################### + + +def elementtree_indent(elem, level=0): + """ + Recursive function to indent an ElementTree._ElementInterface + used for pretty printing. Run indent on elem and then output + in the normal way. + + :param elem: element to be indented. will be modified. + :type elem: ElementTree._ElementInterface + :param level: level of indentation for this element + :type level: nonnegative integer + :rtype: ElementTree._ElementInterface + :return: Contents of elem indented to reflect its structure + """ + + i = "\n" + level * " " + if len(elem): + if not elem.text or not elem.text.strip(): + elem.text = i + " " + for elem in elem: + elementtree_indent(elem, level + 1) + if not elem.tail or not elem.tail.strip(): + elem.tail = i + else: + if level and (not elem.tail or not elem.tail.strip()): + elem.tail = i + + +###################################################################### +# Mathematical approximations +###################################################################### + + +def choose(n, k): + """ + This function is a fast way to calculate binomial coefficients, commonly + known as nCk, i.e. the number of combinations of n things taken k at a time. + (https://en.wikipedia.org/wiki/Binomial_coefficient). + + This is the *scipy.special.comb()* with long integer computation but this + approximation is faster, see https://github.com/nltk/nltk/issues/1181 + + >>> choose(4, 2) + 6 + >>> choose(6, 2) + 15 + + :param n: The number of things. + :type n: int + :param r: The number of times a thing is taken. + :type r: int + """ + if 0 <= k <= n: + ntok, ktok = 1, 1 + for t in range(1, min(k, n - k) + 1): + ntok *= n + ktok *= t + n -= 1 + return ntok // ktok + else: + return 0 + + +###################################################################### +# Iteration utilities +###################################################################### + + +def pairwise(iterable): + """s -> (s0,s1), (s1,s2), (s2, s3), ...""" + a, b = tee(iterable) + next(b, None) + return zip(a, b) + + +###################################################################### +# Parallelization. +###################################################################### + + +def parallelize_preprocess(func, iterator, processes, progress_bar=False): + from joblib import Parallel, delayed + from tqdm import tqdm + + iterator = tqdm(iterator) if progress_bar else iterator + if processes <= 1: + return map(func, iterator) + return Parallel(n_jobs=processes)(delayed(func)(line) for line in iterator) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/wsd.py b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/wsd.py new file mode 100644 index 0000000000000000000000000000000000000000..615d89f6088d8b8136694bd367dec4eb11d14c5c --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/nltk/wsd.py @@ -0,0 +1,52 @@ +# Natural Language Toolkit: Word Sense Disambiguation Algorithms +# +# Authors: Liling Tan , +# Dmitrijs Milajevs +# +# Copyright (C) 2001-2026 NLTK Project +# URL: +# For license information, see LICENSE.TXT + +from nltk.corpus import wordnet + + +def lesk(context_sentence, ambiguous_word, pos=None, synsets=None, lang="eng"): + """Return a synset for an ambiguous word in a context. + + :param iter context_sentence: The context sentence where the ambiguous word + occurs, passed as an iterable of words. + :param str ambiguous_word: The ambiguous word that requires WSD. + :param str pos: A specified Part-of-Speech (POS). + :param iter synsets: Possible synsets of the ambiguous word. + :param str lang: WordNet language. + :return: ``lesk_sense`` The Synset() object with the highest signature overlaps. + + This function is an implementation of the original Lesk algorithm (1986) [1]. + + Usage example:: + + >>> lesk(['I', 'went', 'to', 'the', 'bank', 'to', 'deposit', 'money', '.'], 'bank', 'n') + Synset('depository_financial_institution.n.01') + + [1] Lesk, Michael. "Automatic sense disambiguation using machine + readable dictionaries: how to tell a pine cone from an ice cream + cone." Proceedings of the 5th Annual International Conference on + Systems Documentation. ACM, 1986. + https://dl.acm.org/citation.cfm?id=318728 + """ + + context = set(context_sentence) + if synsets is None: + synsets = wordnet.synsets(ambiguous_word, lang=lang) + + if pos: + synsets = [ss for ss in synsets if str(ss.pos()) == pos] + + if not synsets: + return None + + sense = max( + synsets, key=lambda ss: len(context.intersection(ss.definition().split())) + ) + + return sense diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/INSTALLER b/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/INSTALLER new file mode 100644 index 0000000000000000000000000000000000000000..a1b589e38a32041e49332e5e81c2d363dc418d68 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/LICENSE b/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/LICENSE new file mode 100644 index 0000000000000000000000000000000000000000..cff5eb74e1badd1c5237ed2654b349530179ad1d --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/LICENSE @@ -0,0 +1,29 @@ +BSD 3-Clause License + +Copyright (c) 2009, Jay Loden, Dave Daeschler, Giampaolo Rodola +All rights reserved. + +Redistribution and use in source and binary forms, with or without modification, +are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + + * Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + + * Neither the name of the psutil authors nor the names of its contributors + may be used to endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR +ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON +ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/METADATA b/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/METADATA new file mode 100644 index 0000000000000000000000000000000000000000..f916e9fa57ea52dd8cea4afe658d165a3bb38162 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/METADATA @@ -0,0 +1,542 @@ +Metadata-Version: 2.1 +Name: psutil +Version: 7.2.2 +Summary: Cross-platform lib for process and system monitoring. +Home-page: https://github.com/giampaolo/psutil +Author: Giampaolo Rodola +Author-email: g.rodola@gmail.com +License: BSD-3-Clause +Keywords: ps,top,kill,free,lsof,netstat,nice,tty,ionice,uptime,taskmgr,process,df,iotop,iostat,ifconfig,taskset,who,pidof,pmap,smem,pstree,monitoring,ulimit,prlimit,smem,performance,metrics,agent,observability +Platform: Platform Independent +Classifier: Development Status :: 5 - Production/Stable +Classifier: Environment :: Console +Classifier: Intended Audience :: Developers +Classifier: Intended Audience :: Information Technology +Classifier: Intended Audience :: System Administrators +Classifier: Operating System :: MacOS :: MacOS X +Classifier: Operating System :: Microsoft :: Windows :: Windows 10 +Classifier: Operating System :: Microsoft :: Windows :: Windows 11 +Classifier: Operating System :: Microsoft :: Windows :: Windows 7 +Classifier: Operating System :: Microsoft :: Windows :: Windows 8 +Classifier: Operating System :: Microsoft :: Windows :: Windows 8.1 +Classifier: Operating System :: Microsoft :: Windows :: Windows Server 2003 +Classifier: Operating System :: Microsoft :: Windows :: Windows Server 2008 +Classifier: Operating System :: Microsoft :: Windows :: Windows Vista +Classifier: Operating System :: Microsoft :: Windows +Classifier: Operating System :: Microsoft +Classifier: Operating System :: OS Independent +Classifier: Operating System :: POSIX :: AIX +Classifier: Operating System :: POSIX :: BSD :: FreeBSD +Classifier: Operating System :: POSIX :: BSD :: NetBSD +Classifier: Operating System :: POSIX :: BSD :: OpenBSD +Classifier: Operating System :: POSIX :: BSD +Classifier: Operating System :: POSIX :: Linux +Classifier: Operating System :: POSIX :: SunOS/Solaris +Classifier: Operating System :: POSIX +Classifier: Programming Language :: C +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: Implementation :: CPython +Classifier: Programming Language :: Python :: Implementation :: PyPy +Classifier: Programming Language :: Python +Classifier: Topic :: Software Development :: Libraries :: Python Modules +Classifier: Topic :: Software Development :: Libraries +Classifier: Topic :: System :: Benchmark +Classifier: Topic :: System :: Hardware +Classifier: Topic :: System :: Monitoring +Classifier: Topic :: System :: Networking :: Monitoring :: Hardware Watchdog +Classifier: Topic :: System :: Networking :: Monitoring +Classifier: Topic :: System :: Networking +Classifier: Topic :: System :: Operating System +Classifier: Topic :: System :: Systems Administration +Classifier: Topic :: Utilities +Requires-Python: >=3.6 +Description-Content-Type: text/x-rst +License-File: LICENSE +Provides-Extra: dev +Requires-Dist: psleak ; extra == 'dev' +Requires-Dist: pytest ; extra == 'dev' +Requires-Dist: pytest-instafail ; extra == 'dev' +Requires-Dist: pytest-xdist ; extra == 'dev' +Requires-Dist: setuptools ; extra == 'dev' +Requires-Dist: abi3audit ; extra == 'dev' +Requires-Dist: black ; extra == 'dev' +Requires-Dist: check-manifest ; extra == 'dev' +Requires-Dist: coverage ; extra == 'dev' +Requires-Dist: packaging ; extra == 'dev' +Requires-Dist: pylint ; extra == 'dev' +Requires-Dist: pyperf ; extra == 'dev' +Requires-Dist: pypinfo ; extra == 'dev' +Requires-Dist: pytest-cov ; extra == 'dev' +Requires-Dist: requests ; extra == 'dev' +Requires-Dist: rstcheck ; extra == 'dev' +Requires-Dist: ruff ; extra == 'dev' +Requires-Dist: sphinx ; extra == 'dev' +Requires-Dist: sphinx-rtd-theme ; extra == 'dev' +Requires-Dist: toml-sort ; extra == 'dev' +Requires-Dist: twine ; extra == 'dev' +Requires-Dist: validate-pyproject[all] ; extra == 'dev' +Requires-Dist: virtualenv ; extra == 'dev' +Requires-Dist: vulture ; extra == 'dev' +Requires-Dist: wheel ; extra == 'dev' +Requires-Dist: colorama ; (os_name == "nt") and extra == 'dev' +Requires-Dist: pyreadline3 ; (os_name == "nt") and extra == 'dev' +Requires-Dist: pywin32 ; (os_name == "nt" and implementation_name != "pypy") and extra == 'dev' +Requires-Dist: wheel ; (os_name == "nt" and implementation_name != "pypy") and extra == 'dev' +Requires-Dist: wmi ; (os_name == "nt" and implementation_name != "pypy") and extra == 'dev' +Provides-Extra: test +Requires-Dist: psleak ; extra == 'test' +Requires-Dist: pytest ; extra == 'test' +Requires-Dist: pytest-instafail ; extra == 'test' +Requires-Dist: pytest-xdist ; extra == 'test' +Requires-Dist: setuptools ; extra == 'test' +Requires-Dist: pywin32 ; (os_name == "nt" and implementation_name != "pypy") and extra == 'test' +Requires-Dist: wheel ; (os_name == "nt" and implementation_name != "pypy") and extra == 'test' +Requires-Dist: wmi ; (os_name == "nt" and implementation_name != "pypy") and extra == 'test' + +| |downloads| |stars| |forks| |contributors| |packages| +| |version| |license| |stackoverflow| |twitter| |tidelift| +| 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|twitter| image:: https://img.shields.io/twitter/follow/grodola?style=flat + :target: https://twitter.com/grodola + :alt: Twitter Follow + +.. |tidelift| image:: https://tidelift.com/badges/github/giampaolo/psutil?style=flat + :target: https://tidelift.com/subscription/pkg/pypi-psutil?utm_source=pypi-psutil&utm_medium=referral&utm_campaign=readme + :alt: Tidelift + +----- + +Quick links +=========== + +- `Home page `_ +- `Install `_ +- `Documentation `_ +- `Download `_ +- `Forum `_ +- `StackOverflow `_ +- `Blog `_ +- `What's new `_ + + +Summary +======= + +psutil (process and system utilities) is a cross-platform library for +retrieving information on **running processes** and **system utilization** +(CPU, memory, disks, network, sensors) in Python. +It is useful mainly for **system monitoring**, **profiling and limiting process +resources** and **management of running processes**. +It implements many functionalities offered by classic UNIX command line tools +such as *ps, top, iotop, lsof, netstat, ifconfig, free* and others. +psutil currently supports the following platforms: + +- **Linux** +- **Windows** +- **macOS** +- **FreeBSD, OpenBSD**, **NetBSD** +- **Sun Solaris** +- **AIX** + +Supported Python versions are cPython 3.6+ and `PyPy `__. +Latest psutil version supporting Python 2.7 is +`psutil 6.1.1 `__. + +Example usages +============== + +This represents pretty much the whole psutil API. + +CPU +--- + +.. code-block:: python + + >>> import psutil + >>> + >>> psutil.cpu_times() + scputimes(user=3961.46, nice=169.729, system=2150.659, idle=16900.540, iowait=629.59, irq=0.0, softirq=19.42, steal=0.0, guest=0, guest_nice=0.0) + >>> + >>> for x in range(3): + ... psutil.cpu_percent(interval=1) + ... + 4.0 + 5.9 + 3.8 + >>> + >>> for x in range(3): + ... psutil.cpu_percent(interval=1, percpu=True) + ... + [4.0, 6.9, 3.7, 9.2] + [7.0, 8.5, 2.4, 2.1] + [1.2, 9.0, 9.9, 7.2] + >>> + >>> for x in range(3): + ... psutil.cpu_times_percent(interval=1, percpu=False) + ... + scputimes(user=1.5, nice=0.0, system=0.5, idle=96.5, iowait=1.5, irq=0.0, softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0) + scputimes(user=1.0, nice=0.0, system=0.0, idle=99.0, iowait=0.0, irq=0.0, softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0) + scputimes(user=2.0, nice=0.0, system=0.0, idle=98.0, iowait=0.0, irq=0.0, softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0) + >>> + >>> psutil.cpu_count() + 4 + >>> psutil.cpu_count(logical=False) + 2 + >>> + >>> psutil.cpu_stats() + scpustats(ctx_switches=20455687, interrupts=6598984, soft_interrupts=2134212, syscalls=0) + >>> + >>> psutil.cpu_freq() + scpufreq(current=931.42925, min=800.0, max=3500.0) + >>> + >>> psutil.getloadavg() # also on Windows (emulated) + (3.14, 3.89, 4.67) + +Memory +------ + +.. code-block:: python + + >>> psutil.virtual_memory() + svmem(total=10367352832, available=6472179712, percent=37.6, used=8186245120, free=2181107712, active=4748992512, inactive=2758115328, buffers=790724608, cached=3500347392, shared=787554304) + >>> psutil.swap_memory() + sswap(total=2097147904, used=296128512, free=1801019392, percent=14.1, sin=304193536, sout=677842944) + >>> + +Disks +----- + +.. code-block:: python + + >>> psutil.disk_partitions() + [sdiskpart(device='/dev/sda1', mountpoint='/', fstype='ext4', opts='rw,nosuid'), + sdiskpart(device='/dev/sda2', mountpoint='/home', fstype='ext', opts='rw')] + >>> + >>> psutil.disk_usage('/') + sdiskusage(total=21378641920, used=4809781248, free=15482871808, percent=22.5) + >>> + >>> psutil.disk_io_counters(perdisk=False) + sdiskio(read_count=719566, write_count=1082197, read_bytes=18626220032, write_bytes=24081764352, read_time=5023392, write_time=63199568, read_merged_count=619166, write_merged_count=812396, busy_time=4523412) + >>> + +Network +------- + +.. code-block:: python + + >>> psutil.net_io_counters(pernic=True) + {'eth0': netio(bytes_sent=485291293, bytes_recv=6004858642, packets_sent=3251564, packets_recv=4787798, errin=0, errout=0, dropin=0, dropout=0), + 'lo': netio(bytes_sent=2838627, bytes_recv=2838627, packets_sent=30567, packets_recv=30567, errin=0, errout=0, dropin=0, dropout=0)} + >>> + >>> psutil.net_connections(kind='tcp') + [sconn(fd=115, family=, type=, laddr=addr(ip='10.0.0.1', port=48776), raddr=addr(ip='93.186.135.91', port=80), status='ESTABLISHED', pid=1254), + sconn(fd=117, family=, type=, laddr=addr(ip='10.0.0.1', port=43761), raddr=addr(ip='72.14.234.100', port=80), status='CLOSING', pid=2987), + ...] + >>> + >>> psutil.net_if_addrs() + {'lo': [snicaddr(family=, address='127.0.0.1', netmask='255.0.0.0', broadcast='127.0.0.1', ptp=None), + snicaddr(family=, address='::1', netmask='ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff', broadcast=None, ptp=None), + snicaddr(family=, address='00:00:00:00:00:00', netmask=None, broadcast='00:00:00:00:00:00', ptp=None)], + 'wlan0': [snicaddr(family=, address='192.168.1.3', netmask='255.255.255.0', broadcast='192.168.1.255', ptp=None), + snicaddr(family=, address='fe80::c685:8ff:fe45:641%wlan0', netmask='ffff:ffff:ffff:ffff::', broadcast=None, ptp=None), + snicaddr(family=, address='c4:85:08:45:06:41', netmask=None, broadcast='ff:ff:ff:ff:ff:ff', ptp=None)]} + >>> + >>> psutil.net_if_stats() + {'lo': snicstats(isup=True, duplex=, speed=0, mtu=65536, flags='up,loopback,running'), + 'wlan0': snicstats(isup=True, duplex=, speed=100, mtu=1500, flags='up,broadcast,running,multicast')} + >>> + +Sensors +------- + +.. code-block:: python + + >>> import psutil + >>> psutil.sensors_temperatures() + {'acpitz': [shwtemp(label='', current=47.0, high=103.0, critical=103.0)], + 'asus': [shwtemp(label='', current=47.0, high=None, critical=None)], + 'coretemp': [shwtemp(label='Physical id 0', current=52.0, high=100.0, critical=100.0), + shwtemp(label='Core 0', current=45.0, high=100.0, critical=100.0)]} + >>> + >>> psutil.sensors_fans() + {'asus': [sfan(label='cpu_fan', current=3200)]} + >>> + >>> psutil.sensors_battery() + sbattery(percent=93, secsleft=16628, power_plugged=False) + >>> + +Other system info +----------------- + +.. code-block:: python + + >>> import psutil + >>> psutil.users() + [suser(name='giampaolo', terminal='pts/2', host='localhost', started=1340737536.0, pid=1352), + suser(name='giampaolo', terminal='pts/3', host='localhost', started=1340737792.0, pid=1788)] + >>> + >>> psutil.boot_time() + 1365519115.0 + >>> + +Process management +------------------ + +.. code-block:: python + + >>> import psutil + >>> psutil.pids() + [1, 2, 3, 4, 5, 6, 7, 46, 48, 50, 51, 178, 182, 222, 223, 224, 268, 1215, + 1216, 1220, 1221, 1243, 1244, 1301, 1601, 2237, 2355, 2637, 2774, 3932, + 4176, 4177, 4185, 4187, 4189, 4225, 4243, 4245, 4263, 4282, 4306, 4311, + 4312, 4313, 4314, 4337, 4339, 4357, 4358, 4363, 4383, 4395, 4408, 4433, + 4443, 4445, 4446, 5167, 5234, 5235, 5252, 5318, 5424, 5644, 6987, 7054, + 7055, 7071] + >>> + >>> p = psutil.Process(7055) + >>> p + psutil.Process(pid=7055, name='python3', status='running', started='09:04:44') + >>> p.pid + 7055 + >>> p.name() + 'python3' + >>> p.exe() + '/usr/bin/python3' + >>> p.cwd() + '/home/giampaolo' + >>> p.cmdline() + ['/usr/bin/python3', 'main.py'] + >>> + >>> p.ppid() + 7054 + >>> p.parent() + psutil.Process(pid=4699, name='bash', status='sleeping', started='09:06:44') + >>> p.parents() + [psutil.Process(pid=4699, name='bash', started='09:06:44'), + psutil.Process(pid=4689, name='gnome-terminal-server', status='sleeping', started='0:06:44'), + psutil.Process(pid=1, name='systemd', status='sleeping', started='05:56:55')] + >>> p.children(recursive=True) + [psutil.Process(pid=29835, name='python3', status='sleeping', started='11:45:38'), + psutil.Process(pid=29836, name='python3', status='waking', started='11:43:39')] + >>> + >>> p.status() + 'running' + >>> p.create_time() + 1267551141.5019531 + >>> p.terminal() + '/dev/pts/0' + >>> + >>> p.username() + 'giampaolo' + >>> p.uids() + puids(real=1000, effective=1000, saved=1000) + >>> p.gids() + pgids(real=1000, effective=1000, saved=1000) + >>> + >>> p.cpu_times() + pcputimes(user=1.02, system=0.31, children_user=0.32, children_system=0.1, iowait=0.0) + >>> p.cpu_percent(interval=1.0) + 12.1 + >>> p.cpu_affinity() + [0, 1, 2, 3] + >>> p.cpu_affinity([0, 1]) # set + >>> p.cpu_num() + 1 + >>> + >>> p.memory_info() + pmem(rss=10915840, vms=67608576, shared=3313664, text=2310144, lib=0, data=7262208, dirty=0) + >>> p.memory_full_info() # "real" USS memory usage (Linux, macOS, Win only) + pfullmem(rss=10199040, vms=52133888, shared=3887104, text=2867200, lib=0, data=5967872, dirty=0, uss=6545408, pss=6872064, swap=0) + >>> p.memory_percent() + 0.7823 + >>> p.memory_maps() + [pmmap_grouped(path='/lib/x8664-linux-gnu/libutil-2.15.so', rss=32768, size=2125824, pss=32768, shared_clean=0, shared_dirty=0, private_clean=20480, private_dirty=12288, referenced=32768, anonymous=12288, swap=0), + pmmap_grouped(path='/lib/x8664-linux-gnu/libc-2.15.so', rss=3821568, size=3842048, pss=3821568, shared_clean=0, shared_dirty=0, private_clean=0, private_dirty=3821568, referenced=3575808, anonymous=3821568, swap=0), + pmmap_grouped(path='[heap]', rss=32768, size=139264, pss=32768, shared_clean=0, shared_dirty=0, private_clean=0, private_dirty=32768, referenced=32768, anonymous=32768, swap=0), + pmmap_grouped(path='[stack]', rss=2465792, size=2494464, pss=2465792, shared_clean=0, shared_dirty=0, private_clean=0, private_dirty=2465792, referenced=2277376, anonymous=2465792, swap=0), + ...] + >>> + >>> p.io_counters() + pio(read_count=478001, write_count=59371, read_bytes=700416, write_bytes=69632, read_chars=456232, write_chars=517543) + >>> + >>> p.open_files() + [popenfile(path='/home/giampaolo/monit.py', fd=3, position=0, mode='r', flags=32768), + popenfile(path='/var/log/monit.log', fd=4, position=235542, mode='a', flags=33793)] + >>> + >>> p.net_connections(kind='tcp') + [pconn(fd=115, family=, type=, laddr=addr(ip='10.0.0.1', port=48776), raddr=addr(ip='93.186.135.91', port=80), status='ESTABLISHED'), + pconn(fd=117, family=, type=, laddr=addr(ip='10.0.0.1', port=43761), raddr=addr(ip='72.14.234.100', port=80), status='CLOSING')] + >>> + >>> p.threads() + [pthread(id=5234, user_time=22.5, system_time=9.2891), + pthread(id=5237, user_time=0.0707, system_time=1.1)] + >>> + >>> p.num_threads() + 4 + >>> p.num_fds() + 8 + >>> p.num_ctx_switches() + pctxsw(voluntary=78, involuntary=19) + >>> + >>> p.nice() + 0 + >>> p.nice(10) # set + >>> + >>> p.ionice(psutil.IOPRIO_CLASS_IDLE) # IO priority (Win and Linux only) + >>> p.ionice() + pionice(ioclass=, value=0) + >>> + >>> p.rlimit(psutil.RLIMIT_NOFILE, (5, 5)) # set resource limits (Linux only) + >>> p.rlimit(psutil.RLIMIT_NOFILE) + (5, 5) + >>> + >>> p.environ() + {'LC_PAPER': 'it_IT.UTF-8', 'SHELL': '/bin/bash', 'GREP_OPTIONS': '--color=auto', + 'XDG_CONFIG_DIRS': '/etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg', + ...} + >>> + >>> p.as_dict() + {'status': 'running', 'num_ctx_switches': pctxsw(voluntary=63, involuntary=1), 'pid': 5457, ...} + >>> p.is_running() + True + >>> p.suspend() + >>> p.resume() + >>> + >>> p.terminate() + >>> p.kill() + >>> p.wait(timeout=3) + + >>> + >>> psutil.test() + USER PID %CPU %MEM VSZ RSS TTY START TIME COMMAND + root 1 0.0 0.0 24584 2240 Jun17 00:00 init + root 2 0.0 0.0 0 0 Jun17 00:00 kthreadd + ... + giampaolo 31475 0.0 0.0 20760 3024 /dev/pts/0 Jun19 00:00 python2.4 + giampaolo 31721 0.0 2.2 773060 181896 00:04 10:30 chrome + root 31763 0.0 0.0 0 0 00:05 00:00 kworker/0:1 + >>> + +Further process APIs +-------------------- + +.. code-block:: python + + >>> import psutil + >>> for proc in psutil.process_iter(['pid', 'name']): + ... print(proc.info) + ... + {'pid': 1, 'name': 'systemd'} + {'pid': 2, 'name': 'kthreadd'} + {'pid': 3, 'name': 'ksoftirqd/0'} + ... + >>> + >>> psutil.pid_exists(3) + True + >>> + >>> def on_terminate(proc): + ... print("process {} terminated".format(proc)) + ... + >>> # waits for multiple processes to terminate + >>> gone, alive = psutil.wait_procs(procs_list, timeout=3, callback=on_terminate) + >>> + +Heap info +--------- + +.. code-block:: python + + >>> import psutil + >>> psutil.heap_info() + pheap(heap_used=5177792, mmap_used=819200) + >>> psutil.heap_trim() + +See also `psleak `__ + +Windows services +---------------- + +.. code-block:: python + + >>> list(psutil.win_service_iter()) + [, + , + , + , + ...] + >>> s = psutil.win_service_get('alg') + >>> s.as_dict() + {'binpath': 'C:\\Windows\\System32\\alg.exe', + 'description': 'Provides support for 3rd party protocol plug-ins for Internet Connection Sharing', + 'display_name': 'Application Layer Gateway Service', + 'name': 'alg', + 'pid': None, + 'start_type': 'manual', + 'status': 'stopped', + 'username': 'NT AUTHORITY\\LocalService'} + +Projects using psutil +===================== + +Here's some I find particularly interesting: + +- https://github.com/giampaolo/psleak +- https://github.com/google/grr +- https://github.com/facebook/osquery/ +- https://github.com/nicolargo/glances +- https://github.com/aristocratos/bpytop +- https://github.com/Jahaja/psdash +- https://github.com/ajenti/ajenti +- https://github.com/home-assistant/home-assistant/ + +Portings +======== + +- Go: https://github.com/shirou/gopsutil +- C: https://github.com/hamon-in/cpslib +- Rust: https://github.com/rust-psutil/rust-psutil +- Nim: https://github.com/johnscillieri/psutil-nim + + + diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/RECORD b/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/RECORD new file mode 100644 index 0000000000000000000000000000000000000000..673a558bdb3bc5bd9e588204a48517f3656e16a2 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/RECORD @@ -0,0 +1,27 @@ +psutil-7.2.2.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 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0000000000000000000000000000000000000000..280072783340be19a7c93e8436411cfe97dc5602 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/WHEEL @@ -0,0 +1,7 @@ +Wheel-Version: 1.0 +Generator: setuptools (75.3.3) +Root-Is-Purelib: false +Tag: cp36-abi3-manylinux_2_12_x86_64 +Tag: cp36-abi3-manylinux2010_x86_64 +Tag: cp36-abi3-manylinux_2_28_x86_64 + diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/top_level.txt b/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/top_level.txt new file mode 100644 index 0000000000000000000000000000000000000000..a4d92cc08db6a0d8bfedbbbd620d1fb11f84677b --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/psutil-7.2.2.dist-info/top_level.txt @@ -0,0 +1 @@ +psutil diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/requests-2.32.5.dist-info/INSTALLER b/data/conda_envs/evalclaw/lib/python3.11/site-packages/requests-2.32.5.dist-info/INSTALLER new file mode 100644 index 0000000000000000000000000000000000000000..a1b589e38a32041e49332e5e81c2d363dc418d68 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/requests-2.32.5.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/requests-2.32.5.dist-info/METADATA b/data/conda_envs/evalclaw/lib/python3.11/site-packages/requests-2.32.5.dist-info/METADATA new file mode 100644 index 0000000000000000000000000000000000000000..b31773e3ea2d0e0e16e77d33fefd8b8f8ff3fc85 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/requests-2.32.5.dist-info/METADATA @@ -0,0 +1,133 @@ +Metadata-Version: 2.4 +Name: requests +Version: 2.32.5 +Summary: Python HTTP for Humans. +Home-page: https://requests.readthedocs.io +Author: Kenneth Reitz +Author-email: me@kennethreitz.org +License: Apache-2.0 +Project-URL: Documentation, https://requests.readthedocs.io +Project-URL: Source, https://github.com/psf/requests +Classifier: Development Status :: 5 - Production/Stable +Classifier: Environment :: Web Environment +Classifier: Intended Audience :: Developers +Classifier: License :: OSI Approved :: Apache Software License +Classifier: Natural Language :: English +Classifier: Operating System :: OS Independent +Classifier: Programming Language :: Python +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3.9 +Classifier: Programming Language :: Python :: 3.10 +Classifier: Programming Language :: Python :: 3.11 +Classifier: Programming Language :: Python :: 3.12 +Classifier: Programming Language :: Python :: 3.13 +Classifier: Programming Language :: Python :: 3.14 +Classifier: Programming Language :: Python :: 3 :: Only +Classifier: Programming Language :: Python :: Implementation :: CPython +Classifier: Programming Language :: Python :: Implementation :: PyPy +Classifier: Topic :: Internet :: WWW/HTTP +Classifier: Topic :: Software Development :: Libraries +Requires-Python: >=3.9 +Description-Content-Type: text/markdown +License-File: LICENSE +Requires-Dist: charset_normalizer<4,>=2 +Requires-Dist: idna<4,>=2.5 +Requires-Dist: urllib3<3,>=1.21.1 +Requires-Dist: certifi>=2017.4.17 +Provides-Extra: security +Provides-Extra: socks +Requires-Dist: PySocks!=1.5.7,>=1.5.6; extra == "socks" +Provides-Extra: use-chardet-on-py3 +Requires-Dist: chardet<6,>=3.0.2; extra == "use-chardet-on-py3" +Dynamic: author +Dynamic: author-email +Dynamic: classifier +Dynamic: description +Dynamic: description-content-type +Dynamic: home-page +Dynamic: license +Dynamic: license-file +Dynamic: project-url +Dynamic: provides-extra +Dynamic: requires-dist +Dynamic: requires-python +Dynamic: summary + +# Requests + +**Requests** is a simple, yet elegant, HTTP library. + +```python +>>> import requests +>>> r = requests.get('https://httpbin.org/basic-auth/user/pass', auth=('user', 'pass')) +>>> r.status_code +200 +>>> r.headers['content-type'] +'application/json; charset=utf8' +>>> r.encoding +'utf-8' +>>> r.text +'{"authenticated": true, ...' +>>> r.json() +{'authenticated': True, ...} +``` + +Requests allows you to send HTTP/1.1 requests extremely easily. There’s no need to manually add query strings to your URLs, or to form-encode your `PUT` & `POST` data — but nowadays, just use the `json` method! + +Requests is one of the most downloaded Python packages today, pulling in around `30M downloads / week`— according to GitHub, Requests is currently [depended upon](https://github.com/psf/requests/network/dependents?package_id=UGFja2FnZS01NzA4OTExNg%3D%3D) by `1,000,000+` repositories. You may certainly put your trust in this code. + +[![Downloads](https://static.pepy.tech/badge/requests/month)](https://pepy.tech/project/requests) +[![Supported Versions](https://img.shields.io/pypi/pyversions/requests.svg)](https://pypi.org/project/requests) +[![Contributors](https://img.shields.io/github/contributors/psf/requests.svg)](https://github.com/psf/requests/graphs/contributors) + +## Installing Requests and Supported Versions + +Requests is available on PyPI: + +```console +$ python -m pip install requests +``` + +Requests officially supports Python 3.9+. + +## Supported Features & Best–Practices + +Requests is ready for the demands of building robust and reliable HTTP–speaking applications, for the needs of today. + +- Keep-Alive & Connection Pooling +- International Domains and URLs +- Sessions with Cookie Persistence +- Browser-style TLS/SSL Verification +- Basic & Digest Authentication +- Familiar `dict`–like Cookies +- Automatic Content Decompression and Decoding +- Multi-part File Uploads +- SOCKS Proxy Support +- Connection Timeouts +- Streaming Downloads +- Automatic honoring of `.netrc` +- Chunked HTTP Requests + +## API Reference and User Guide available on [Read the Docs](https://requests.readthedocs.io) + +[![Read the Docs](https://raw.githubusercontent.com/psf/requests/main/ext/ss.png)](https://requests.readthedocs.io) + +## Cloning the repository + +When cloning the Requests repository, you may need to add the `-c +fetch.fsck.badTimezone=ignore` flag to avoid an error about a bad commit timestamp (see +[this issue](https://github.com/psf/requests/issues/2690) for more background): + +```shell +git clone -c fetch.fsck.badTimezone=ignore https://github.com/psf/requests.git +``` + +You can also apply this setting to your global Git config: + +```shell +git config --global fetch.fsck.badTimezone ignore +``` + +--- + +[![Kenneth Reitz](https://raw.githubusercontent.com/psf/requests/main/ext/kr.png)](https://kennethreitz.org) [![Python Software Foundation](https://raw.githubusercontent.com/psf/requests/main/ext/psf.png)](https://www.python.org/psf) diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/requests-2.32.5.dist-info/RECORD b/data/conda_envs/evalclaw/lib/python3.11/site-packages/requests-2.32.5.dist-info/RECORD new file mode 100644 index 0000000000000000000000000000000000000000..50cf4656960c9aea16e818a5d99d0e9c21a3a09b --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/requests-2.32.5.dist-info/RECORD @@ -0,0 +1,42 @@ +requests-2.32.5.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 +requests-2.32.5.dist-info/METADATA,sha256=ZbWgjagfSRVRPnYJZf8Ut1GPZbe7Pv4NqzZLvMTUDLA,4945 +requests-2.32.5.dist-info/RECORD,, +requests-2.32.5.dist-info/WHEEL,sha256=_zCd3N1l69ArxyTb8rzEoP9TpbYXkqRFSNOD5OuxnTs,91 +requests-2.32.5.dist-info/licenses/LICENSE,sha256=CeipvOyAZxBGUsFoaFqwkx54aPnIKEtm9a5u2uXxEws,10142 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b/data/conda_envs/evalclaw/lib/python3.11/site-packages/typepy-1.3.5.dist-info/METADATA new file mode 100644 index 0000000000000000000000000000000000000000..aace29773726c3677b5dcf55454408f5c3e14d7e --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/typepy-1.3.5.dist-info/METADATA @@ -0,0 +1,254 @@ +Metadata-Version: 2.4 +Name: typepy +Version: 1.3.5 +Summary: typepy is a Python library for variable type checker/validator/converter at a run time. +Home-page: https://github.com/thombashi/typepy +Author: Tsuyoshi Hombashi +Author-email: tsuyoshi.hombashi@gmail.com +License: MIT License +Project-URL: Changelog, https://github.com/thombashi/typepy/releases +Project-URL: Documentation, https://typepy.rtfd.io/ +Project-URL: Source, https://github.com/thombashi/typepy +Project-URL: Tracker, https://github.com/thombashi/typepy/issues +Keywords: library,type-checking,type-conversion,validator +Classifier: Development Status :: 5 - Production/Stable +Classifier: Intended Audience :: Developers +Classifier: Intended Audience :: Information Technology +Classifier: License :: OSI Approved :: MIT License +Classifier: Operating System :: OS Independent +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3.9 +Classifier: Programming Language :: Python :: 3.10 +Classifier: Programming Language :: Python :: 3.11 +Classifier: Programming Language :: Python :: 3.12 +Classifier: Programming Language :: Python :: 3.13 +Classifier: Programming Language :: Python :: 3.14 +Classifier: Programming Language :: Python :: 3 :: Only +Classifier: Programming Language :: Python :: Implementation :: CPython +Classifier: Programming Language :: Python :: Implementation :: PyPy +Classifier: Topic :: Software Development :: Libraries +Classifier: Topic :: Software Development :: Libraries :: Python Modules +Requires-Python: >=3.9 +Description-Content-Type: text/x-rst +License-File: LICENSE +Requires-Dist: mbstrdecoder<2,>=1.0.0 +Provides-Extra: datetime +Requires-Dist: python-dateutil<3.0.0,>=2.8.0; extra == "datetime" +Requires-Dist: pytz>=2018.9; extra == "datetime" +Requires-Dist: packaging; extra == "datetime" +Provides-Extra: test +Requires-Dist: pytest>=6.0.1; extra == "test" +Requires-Dist: tcolorpy; extra == "test" +Requires-Dist: python-dateutil<3.0.0,>=2.8.0; extra == "test" +Requires-Dist: pytz>=2018.9; extra == "test" +Requires-Dist: packaging; extra == "test" +Dynamic: author +Dynamic: author-email +Dynamic: classifier +Dynamic: description +Dynamic: description-content-type +Dynamic: home-page +Dynamic: keywords +Dynamic: license +Dynamic: license-file +Dynamic: project-url +Dynamic: provides-extra +Dynamic: requires-dist +Dynamic: requires-python +Dynamic: summary + +.. contents:: **typepy** + :backlinks: top + :depth: 2 + +Summary +========= +`typepy `__ is a Python library for variable type checker/validator/converter at a run time. + +.. image:: https://badge.fury.io/py/typepy.svg + :target: https://badge.fury.io/py/typepy + :alt: PyPI package version + +.. image:: https://anaconda.org/conda-forge/typepy/badges/version.svg + :target: https://anaconda.org/conda-forge/typepy + :alt: conda-forge package version + +.. image:: https://img.shields.io/pypi/pyversions/typepy.svg + :target: https://pypi.org/project/typepy + :alt: Supported Python versions + +.. image:: https://img.shields.io/pypi/implementation/typepy.svg + :target: https://pypi.org/project/typepy + :alt: Supported Python implementations + +.. image:: https://github.com/thombashi/typepy/workflows/Tests/badge.svg + :target: https://github.com/thombashi/typepy/actions?query=workflow%3ATests + :alt: Linux/macOS/Windows CI status + +.. image:: https://coveralls.io/repos/github/thombashi/typepy/badge.svg?branch=master + :target: https://coveralls.io/github/thombashi/typepy?branch=master + :alt: Test coverage + +.. image:: https://github.com/thombashi/typepy/actions/workflows/github-code-scanning/codeql/badge.svg + :target: https://github.com/thombashi/typepy/actions/workflows/github-code-scanning/codeql + :alt: CodeQL + +Features +========== +- checking a value type +- validate a value for a type +- convert a value from one type to the other type + +The correspondence between Python types and ``typepy`` classes are as follows: + +.. table:: Supported Types + + ================================================ ======================================================================================================= + Python Type typepy: Type Class + ================================================ ======================================================================================================= + ``bool`` `Bool `__ + ``datetime`` `DateTime `__ + ``dict`` `Dictionary `__ + ``float``/``decimal.Decimal`` (not infinity/NaN) `RealNumber `__ + ``float``/``decimal.Decimal`` (infinity) `Infinity `__ + ``float``/``decimal.Decimal`` (NaN) `Nan `__ + ``int`` `Integer `__ + ``list`` `List `__ + ``None`` `None `__ + ``str`` (not null) `String `__ + ``str`` (null) `NullString `__ + ``str`` (IP address) `IpAddress `__ + ================================================ ======================================================================================================= + +Installation +============ + +Installation: pip +------------------------------ +:: + + pip install typepy + +Install additional dependency packages with the following command if using ``typepy.DateTime`` class + +:: + + pip install typepy[datetime] + +Installation: conda +------------------------------ +:: + + conda install -c conda-forge typepy + +Installation: apt +------------------------------ +:: + + sudo add-apt-repository ppa:thombashi/ppa + sudo apt update + sudo apt install python3-typepy + + +Dependencies +============ +- Python 3.9+ +- `Python package dependencies (automatically installed) `__ + +Optional dependencies +---------------------------------- +These packages can be installed via ``pip install typepy[datetime]``: + +- `python-dateutil `__ +- `pytz `__ + +Usage +======= +Type Check Method +---------------------- +:Examples: + .. code-block:: pycon + + >>> from typepy import Integer + >>> Integer(1).is_type() + True + >>> Integer(1.1).is_type() + False + + +Type Validation Method +-------------------------------------------- +:Examples: + .. code-block:: pycon + + >>> from typepy import Integer + >>> Integer(1).validate() + >>> try: + ... Integer(1.1).validate() + ... except TypeError as e: + ... # validate() raised TypeError when the value unmatched the type class + ... print(e) + ... + invalid value type: expected=INTEGER, actual= + + +Type Conversion Methods +-------------------------------------------- + +convert method +~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +:Examples: + .. code-block:: pycon + + >>> from typepy import Integer, TypeConversionError + >>> Integer("1").convert() + 1 + >>> try: + ... Integer(1.1).convert() + ... except TypeConversionError as e: + ... # convert() raised TypeConversionError when conversion failed + ... print(e) + ... + failed to convert from float to INTEGER + +try_convert method +~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +:Examples: + .. code-block:: pycon + + >>> from typepy import Integer + >>> Integer("1").try_convert() + 1 + >>> print(Integer(1.1).try_convert()) # try_convert() returned None when conversion failed + None + +force_convert +~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +:Examples: + .. code-block:: pycon + + >>> from typepy import Integer, TypeConversionError + >>> Integer("1").force_convert() # force_convert() forcibly convert the value + 1 + >>> Integer(1.1).force_convert() + 1 + >>> try: + ... Integer("abc").force_convert() + ... except TypeConversionError as e: + ... # force_convert() raised TypeConversionError when the value was not convertible + ... print(e) + ... + failed to force_convert to int: type= + + +For more information +-------------------------------------------- +Type check/validate/convert results differed according to +``strict_level`` value which can pass to typepy class constructors as an argument. +More information can be found in the +`API reference `__. + +Documentation +=============== +https://typepy.rtfd.io/ + diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/typepy-1.3.5.dist-info/RECORD b/data/conda_envs/evalclaw/lib/python3.11/site-packages/typepy-1.3.5.dist-info/RECORD new file mode 100644 index 0000000000000000000000000000000000000000..d7e7b05d37c318104c6c4dae388d8dd05b7329a8 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/typepy-1.3.5.dist-info/RECORD @@ -0,0 +1,107 @@ 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+Classifier: Programming Language :: Python :: 3 :: Only +Classifier: Programming Language :: Python :: 3.9 +Classifier: Programming Language :: Python :: 3.10 +Classifier: Programming Language :: Python :: 3.11 +Classifier: Programming Language :: Python :: 3.12 +Classifier: Programming Language :: Python :: 3.13 +Classifier: Programming Language :: Python :: 3.14 +Classifier: Topic :: Software Development +License-File: LICENSE +Project-URL: Bug Tracker, https://github.com/python/typing_extensions/issues +Project-URL: Changes, https://github.com/python/typing_extensions/blob/main/CHANGELOG.md +Project-URL: Documentation, https://typing-extensions.readthedocs.io/ +Project-URL: Home, https://github.com/python/typing_extensions +Project-URL: Q & A, https://github.com/python/typing/discussions +Project-URL: Repository, https://github.com/python/typing_extensions + +# Typing Extensions + +[![Chat at https://gitter.im/python/typing](https://badges.gitter.im/python/typing.svg)](https://gitter.im/python/typing) + +[Documentation](https://typing-extensions.readthedocs.io/en/latest/#) – +[PyPI](https://pypi.org/project/typing-extensions/) + +## Overview + +The `typing_extensions` module serves two related purposes: + +- Enable use of new type system features on older Python versions. For example, + `typing.TypeGuard` is new in Python 3.10, but `typing_extensions` allows + users on previous Python versions to use it too. +- Enable experimentation with new type system PEPs before they are accepted and + added to the `typing` module. + +`typing_extensions` is treated specially by static type checkers such as +mypy and pyright. Objects defined in `typing_extensions` are treated the same +way as equivalent forms in `typing`. + +`typing_extensions` uses +[Semantic Versioning](https://semver.org/). The +major version will be incremented only for backwards-incompatible changes. +Therefore, it's safe to depend +on `typing_extensions` like this: `typing_extensions ~=x.y`, +where `x.y` is the first version that includes all features you need. +[This](https://packaging.python.org/en/latest/specifications/version-specifiers/#compatible-release) +is equivalent to `typing_extensions >=x.y, <(x+1)`. Do not depend on `~= x.y.z` +unless you really know what you're doing; that defeats the purpose of +semantic versioning. + +## Included items + +See [the documentation](https://typing-extensions.readthedocs.io/en/latest/#) for a +complete listing of module contents. + +## Contributing + +See [CONTRIBUTING.md](https://github.com/python/typing_extensions/blob/main/CONTRIBUTING.md) +for how to contribute to `typing_extensions`. + diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/typing_extensions-4.15.0.dist-info/RECORD b/data/conda_envs/evalclaw/lib/python3.11/site-packages/typing_extensions-4.15.0.dist-info/RECORD new file mode 100644 index 0000000000000000000000000000000000000000..9effc3c466858fa01ef6401138aad6ddd742700c --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/typing_extensions-4.15.0.dist-info/RECORD @@ -0,0 +1,7 @@ +__pycache__/typing_extensions.cpython-311.pyc,, +typing_extensions-4.15.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 +typing_extensions-4.15.0.dist-info/METADATA,sha256=wTg3j-jxiTSsmd4GBTXFPsbBOu7WXpTDJkHafuMZKnI,3259 +typing_extensions-4.15.0.dist-info/RECORD,, +typing_extensions-4.15.0.dist-info/WHEEL,sha256=G2gURzTEtmeR8nrdXUJfNiB3VYVxigPQ-bEQujpNiNs,82 +typing_extensions-4.15.0.dist-info/licenses/LICENSE,sha256=Oy-B_iHRgcSZxZolbI4ZaEVdZonSaaqFNzv7avQdo78,13936 +typing_extensions.py,sha256=Qz0R0XDTok0usGXrwb_oSM6n49fOaFZ6tSvqLUwvftg,160429 diff --git a/data/conda_envs/evalclaw/lib/python3.11/site-packages/typing_extensions-4.15.0.dist-info/WHEEL b/data/conda_envs/evalclaw/lib/python3.11/site-packages/typing_extensions-4.15.0.dist-info/WHEEL new file mode 100644 index 0000000000000000000000000000000000000000..d8b9936dad9ab2513fa6979f411560d3b6b57e37 --- /dev/null +++ b/data/conda_envs/evalclaw/lib/python3.11/site-packages/typing_extensions-4.15.0.dist-info/WHEEL @@ -0,0 +1,4 @@ +Wheel-Version: 1.0 +Generator: flit 3.12.0 +Root-Is-Purelib: true +Tag: py3-none-any