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# Copyright (c) Alibaba, Inc. and its affiliates.
import asyncio
import json
import os
import platform
import queue
import threading
from dataclasses import dataclass
from http import HTTPStatus
from typing import Dict
from urllib.parse import urlparse
import aiohttp
import requests
from dashscope.api_entities.dashscope_response import DashScopeAPIResponse
from dashscope.common.api_key import get_default_api_key
from dashscope.common.constants import SSE_CONTENT_TYPE
from dashscope.common.logging import logger
from dashscope.version import __version__
def is_validate_fine_tune_file(file_path):
with open(file_path, encoding="utf-8") as f:
for line in f:
try:
json.loads(line)
except json.decoder.JSONDecodeError:
return False
return True
def _get_task_group_and_task(module_name):
"""Get task_group and task name.
get task_group and task name based on api file __name__
Args:
module_name (str): The api file __name__
Returns:
(str, str): task_group and task
"""
pkg, task = module_name.rsplit(".", 1)
task = task.replace("_", "-")
_, task_group = pkg.rsplit(".", 1)
return task_group, task
def is_path(path: str):
"""Check the input path is valid local path.
Args:
path_or_url (str): The path.
Returns:
bool: If path return True, otherwise False.
"""
url_parsed = urlparse(path)
if url_parsed.scheme in ("file", ""):
return os.path.exists(url_parsed.path)
else:
return False
def is_url(url: str):
"""Check the input url is valid url.
Args:
url (str): The url
Returns:
bool: If is url return True, otherwise False.
"""
url_parsed = urlparse(url)
# pylint: disable=simplifiable-if-statement
if url_parsed.scheme in ("http", "https", "oss"):
return True
else:
return False
def iter_over_async(ait):
loop = asyncio.get_event_loop_policy().new_event_loop()
ait = ait.__aiter__()
async def get_next():
try:
obj = await ait.__anext__()
return False, obj
except StopAsyncIteration:
return True, None
def iter_thread(loop, message_queue):
while True:
try:
done, obj = loop.run_until_complete(get_next())
if done:
message_queue.put((True, None, None))
break
message_queue.put((False, None, obj))
except BaseException as e: # noqa E722
logger.exception(e)
message_queue.put((True, e, None))
break
message_queue = queue.Queue()
x = threading.Thread(
target=iter_thread,
args=(loop, message_queue),
name="iter_async_thread",
)
x.start()
while True:
finished, error, obj = message_queue.get()
if finished:
if error is not None:
yield DashScopeAPIResponse(
-1,
"",
"Unknown",
message=f"Error type: {type(error)}, message: {error}",
)
break
yield obj # pylint: disable=no-else-break
def async_to_sync(async_generator):
for message in iter_over_async(async_generator):
yield message
def get_user_agent():
try:
platform_ = (
platform.platform().replace("\n", "").replace("\r", "").strip()
)
except Exception:
platform_ = "unknown"
try:
processor_ = (
platform.processor().replace("\n", "").replace("\r", "").strip()
)
except Exception:
processor_ = "unknown"
ua = (
f"dashscope/{__version__}; python/{platform.python_version()}; "
f"platform/{platform_}; "
f"processor/{processor_}"
)
return ua
def default_headers(api_key: str = None) -> Dict[str, str]:
ua = get_user_agent()
headers = {"user-agent": ua}
if api_key is None:
api_key = get_default_api_key()
headers["Authorization"] = f"Bearer {api_key}"
headers["Accept"] = "application/json"
return headers
def join_url(base_url, *args):
if not base_url.endswith("/"):
base_url = base_url + "/"
url = base_url
for arg in args:
if arg is not None:
url += arg + "/"
return url[:-1]
async def _handle_aiohttp_response(response: aiohttp.ClientResponse):
request_id = ""
if response.status == HTTPStatus.OK:
json_content = await response.json()
if "request_id" in json_content:
request_id = json_content["request_id"]
return DashScopeAPIResponse(
request_id=request_id,
status_code=HTTPStatus.OK,
output=json_content,
)
else:
if "application/json" in response.content_type:
error = await response.json()
msg = ""
if "message" in error:
msg = error["message"]
if "request_id" in error:
request_id = error["request_id"]
return DashScopeAPIResponse(
request_id=request_id,
status_code=response.status,
output=None,
code=error["code"],
message=msg,
)
else:
msg = await response.read()
return DashScopeAPIResponse(
request_id=request_id,
status_code=response.status,
output=None,
code="Unknown",
message=msg,
)
@dataclass
class SSEEvent:
id: str
eventType: str
data: str
def __init__( # pylint: disable=redefined-builtin
self,
id: str,
type: str,
data: str,
):
self.id = id
self.eventType = type
self.data = data
def _handle_stream(response: requests.Response):
# TODO define done message.
is_error = False
status_code = HTTPStatus.BAD_REQUEST
event = SSEEvent(None, None, None) # type: ignore[arg-type]
eventType = None
for line in response.iter_lines():
if line:
line = line.decode("utf8")
line = line.rstrip("\n").rstrip("\r")
if line.startswith("id:"):
id = line[len("id:") :] # pylint: disable=redefined-builtin
event.id = id.strip()
elif line.startswith("event:"):
eventType = line[len("event:") :]
event.eventType = eventType.strip()
if eventType == "error":
is_error = True
elif line.startswith("status:"):
status_code = line[len("status:") :]
status_code = int(status_code.strip())
elif line.startswith("data:"):
line = line[len("data:") :]
event.data = line.strip()
if eventType is not None and eventType == "done":
continue
yield (is_error, status_code, event)
if is_error:
break
else:
continue # ignore heartbeat...
def _handle_error_message(error, status_code, flattened_output):
code = None
msg = ""
request_id = ""
if flattened_output:
error["status_code"] = status_code
return error
if "message" in error:
msg = error["message"]
if "msg" in error:
msg = error["msg"]
if "code" in error:
code = error["code"]
if "request_id" in error:
request_id = error["request_id"]
return DashScopeAPIResponse(
request_id=request_id,
status_code=status_code,
code=code,
message=msg,
)
def _handle_http_failed_response(
response: requests.Response,
flattened_output: bool = False,
) -> DashScopeAPIResponse:
request_id = ""
if "application/json" in response.headers.get("content-type", ""):
error = response.json()
return _handle_error_message(
error,
response.status_code,
flattened_output,
)
elif SSE_CONTENT_TYPE in response.headers.get("content-type", ""):
msgs = response.content.decode("utf-8").split("\n")
for msg in msgs:
if msg.startswith("data:"):
error = json.loads(msg.replace("data:", "").strip())
return _handle_error_message(
error,
response.status_code,
flattened_output,
)
return DashScopeAPIResponse(
request_id=request_id,
status_code=response.status_code,
code="Unknown",
message=msgs,
)
else:
msg = response.content.decode("utf-8")
if flattened_output:
return {"status_code": response.status_code, "message": msg} # type: ignore[return-value] # pylint: disable=line-too-long # noqa: E501
return DashScopeAPIResponse(
request_id=request_id,
status_code=response.status_code,
code="Unknown",
message=msg,
)
async def _handle_aio_stream(response):
# TODO define done message.
is_error = False
status_code = HTTPStatus.BAD_REQUEST
async for line in response.content:
if line:
line = line.decode("utf8")
line = line.rstrip("\n").rstrip("\r")
if line.startswith("event:error"):
is_error = True
elif line.startswith("status:"):
status_code = line[len("status:") :]
status_code = int(status_code.strip())
elif line.startswith("data:"):
line = line[len("data:") :]
yield (is_error, status_code, line)
if is_error:
break
else:
continue # ignore heartbeat...
async def _handle_aiohttp_failed_response(
response: requests.Response,
flattened_output: bool = False,
) -> DashScopeAPIResponse:
request_id = ""
if "application/json" in response.content_type:
error = await response.json()
return _handle_error_message(error, response.status, flattened_output)
elif SSE_CONTENT_TYPE in response.content_type:
async for _, _, data in _handle_aio_stream(response):
error = json.loads(data)
return _handle_error_message(error, response.status, flattened_output)
else:
msg = response.content.decode("utf-8")
if flattened_output:
return {"status_code": response.status, "message": msg} # type: ignore[return-value] # pylint: disable=line-too-long # noqa: E501
return DashScopeAPIResponse(
request_id=request_id,
status_code=response.status,
code="Unknown",
message=msg,
)
def _handle_http_response(
response: requests.Response,
flattened_output: bool = False,
):
response = _handle_http_stream_response(response, flattened_output)
_, output = next(response)
try:
next(response)
except StopIteration:
pass
return output
# pylint: disable=R1702,too-many-branches,too-many-statements
def _handle_http_stream_response(
response: requests.Response,
flattened_output: bool = False,
):
request_id = ""
if (
response.status_code == HTTPStatus.OK
and SSE_CONTENT_TYPE in response.headers.get("content-type", "")
):
for is_error, status_code, event in _handle_stream(response):
if not is_error:
try:
output = None
usage = None
msg = json.loads(event.data)
if flattened_output:
msg["status_code"] = response.status_code
yield event.eventType, msg
else:
logger.debug("Stream message: %s", msg)
if not is_error:
if "output" in msg:
output = msg["output"]
if "usage" in msg:
usage = msg["usage"]
if "request_id" in msg:
request_id = msg["request_id"]
yield event.eventType, DashScopeAPIResponse(
request_id=request_id,
status_code=HTTPStatus.OK,
output=output,
usage=usage,
)
except json.JSONDecodeError as e:
if flattened_output:
yield event.eventType, {
"status_code": response.status_code,
"message": e.message,
}
else:
yield event.eventType, DashScopeAPIResponse(
request_id=request_id,
status_code=HTTPStatus.BAD_REQUEST,
output=None,
code="Unknown",
message=event.data,
)
continue
else:
if flattened_output:
yield event.eventType, {
"status_code": status_code,
"message": event.data,
}
else:
msg = json.loads(event.eventType)
yield event.eventType, DashScopeAPIResponse(
request_id=request_id,
status_code=status_code,
output=None,
code=msg["code"]
if "code" in msg
else None, # noqa E501
message=msg["message"] if "message" in msg else None,
) # noqa E501
# pylint: disable=consider-using-in
elif (
response.status_code == HTTPStatus.OK
or response.status_code == HTTPStatus.CREATED
):
json_content = response.json()
if flattened_output:
json_content["status_code"] = response.status_code
yield None, json_content
else:
output = None
usage = None
code = None
msg = ""
if "data" in json_content:
output = json_content["data"]
if "code" in json_content:
code = json_content["code"]
if "message" in json_content:
msg = json_content["message"]
if "output" in json_content:
output = json_content["output"]
if "usage" in json_content:
usage = json_content["usage"]
if "request_id" in json_content:
request_id = json_content["request_id"]
json_content.pop("request_id", None)
if "data" not in json_content and "output" not in json_content:
output = json_content
yield None, DashScopeAPIResponse(
request_id=request_id,
status_code=response.status_code,
code=code, # type: ignore[arg-type]
output=output,
usage=usage,
message=msg,
)
else:
yield None, _handle_http_failed_response(response, flattened_output)
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