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def _parse_authorization(cls, response, uri=None):
"""
Parse an authorization resource.
"""
links = _parse_header_links(response)
try:
new_cert_uri = links[u'next'][u'url']
except KeyError:
raise errors.ClientError('"next" link missing')
re... |
def _check_authorization(cls, authzr, identifier):
"""
Check that the authorization we got is the one we expected.
"""
if authzr.body.identifier != identifier:
raise errors.UnexpectedUpdate(authzr)
return authzr |
def answer_challenge(self, challenge_body, response):
"""
Respond to an authorization challenge.
:param ~acme.messages.ChallengeBody challenge_body: The challenge being
responded to.
:param ~acme.challenges.ChallengeResponse response: The response to the
challeng... |
def _parse_challenge(cls, response):
"""
Parse a challenge resource.
"""
links = _parse_header_links(response)
try:
authzr_uri = links['up']['url']
except KeyError:
raise errors.ClientError('"up" link missing')
return (
response... |
def _check_challenge(cls, challenge, challenge_body):
"""
Check that the challenge resource we got is the one we expected.
"""
if challenge.uri != challenge_body.uri:
raise errors.UnexpectedUpdate(challenge.uri)
return challenge |
def poll(self, authzr):
"""
Update an authorization from the server (usually to check its status).
"""
action = LOG_ACME_POLL_AUTHORIZATION(authorization=authzr)
with action.context():
return (
DeferredContext(self._client.get(authzr.uri))
... |
def retry_after(cls, response, default=5, _now=time.time):
"""
Parse the Retry-After value from a response.
"""
val = response.headers.getRawHeaders(b'retry-after', [default])[0]
try:
return int(val)
except ValueError:
return http.stringToDatetime(... |
def request_issuance(self, csr):
"""
Request a certificate.
Authorizations should have already been completed for all of the names
requested in the CSR.
Note that unlike `acme.client.Client.request_issuance`, the certificate
resource will have the body data as raw bytes... |
def _parse_certificate(cls, response):
"""
Parse a response containing a certificate resource.
"""
links = _parse_header_links(response)
try:
cert_chain_uri = links[u'up'][u'url']
except KeyError:
cert_chain_uri = None
return (
... |
def fetch_chain(self, certr, max_length=10):
"""
Fetch the intermediary chain for a certificate.
:param acme.messages.CertificateResource certr: The certificate to
fetch the chain for.
:param int max_length: The maximum length of the chain that will be
fetched.
... |
def _wrap_in_jws(self, nonce, obj):
"""
Wrap ``JSONDeSerializable`` object in JWS.
.. todo:: Implement ``acmePath``.
:param ~josepy.interfaces.JSONDeSerializable obj:
:param bytes nonce:
:rtype: `bytes`
:return: JSON-encoded data
"""
with LOG_J... |
def _check_response(cls, response, content_type=JSON_CONTENT_TYPE):
"""
Check response content and its type.
.. note::
Unlike :mod:`acme.client`, checking is strict.
:param bytes content_type: Expected Content-Type response header. If
the response Content-Typ... |
def _send_request(self, method, url, *args, **kwargs):
"""
Send HTTP request.
:param str method: The HTTP method to use.
:param str url: The URL to make the request to.
:return: Deferred firing with the HTTP response.
"""
action = LOG_JWS_REQUEST(url=url)
... |
def head(self, url, *args, **kwargs):
"""
Send HEAD request without checking the response.
Note that ``_check_response`` is not called, as there will be no
response body to check.
:param str url: The URL to make the request to.
"""
with LOG_JWS_HEAD().context():... |
def get(self, url, content_type=JSON_CONTENT_TYPE, **kwargs):
"""
Send GET request and check response.
:param str method: The HTTP method to use.
:param str url: The URL to make the request to.
:raises txacme.client.ServerError: If server response body carries HTTP
... |
def _add_nonce(self, response):
"""
Store a nonce from a response we received.
:param twisted.web.iweb.IResponse response: The HTTP response.
:return: The response, unmodified.
"""
nonce = response.headers.getRawHeaders(
REPLAY_NONCE_HEADER, [None])[0]
... |
def _get_nonce(self, url):
"""
Get a nonce to use in a request, removing it from the nonces on hand.
"""
action = LOG_JWS_GET_NONCE()
if len(self._nonces) > 0:
with action:
nonce = self._nonces.pop()
action.add_success_fields(nonce=nonc... |
def _post(self, url, obj, content_type, **kwargs):
"""
POST an object and check the response.
:param str url: The URL to request.
:param ~josepy.interfaces.JSONDeSerializable obj: The serializable
payload of the request.
:param bytes content_type: The expected conten... |
def post(self, url, obj, content_type=JSON_CONTENT_TYPE, **kwargs):
"""
POST an object and check the response. Retry once if a badNonce error
is received.
:param str url: The URL to request.
:param ~josepy.interfaces.JSONDeSerializable obj: The serializable
payload o... |
def _daemon_thread(*a, **kw):
"""
Create a `threading.Thread`, but always set ``daemon``.
"""
thread = Thread(*a, **kw)
thread.daemon = True
return thread |
def _defer_to_worker(deliver, worker, work, *args, **kwargs):
"""
Run a task in a worker, delivering the result as a ``Deferred`` in the
reactor thread.
"""
deferred = Deferred()
def wrapped_work():
try:
result = work(*args, **kwargs)
except BaseException:
... |
def _split_zone(server_name, zone_name):
"""
Split the zone portion off from a DNS label.
:param str server_name: The full DNS label.
:param str zone_name: The zone name suffix.
"""
server_name = server_name.rstrip(u'.')
zone_name = zone_name.rstrip(u'.')
if not (server_name == zone_nam... |
def _get_existing(driver, zone_name, server_name, validation):
"""
Get existing validation records.
"""
if zone_name is None:
zones = sorted(
(z for z
in driver.list_zones()
if server_name.rstrip(u'.')
.endswith(u'.' + z.domain.rstrip(u'.')))... |
def _validation(response):
"""
Get the validation value for a challenge response.
"""
h = hashlib.sha256(response.key_authorization.encode("utf-8"))
return b64encode(h.digest()).decode() |
def load_or_create_client_key(pem_path):
"""
Load the client key from a directory, creating it if it does not exist.
.. note:: The client key that will be created will be a 2048-bit RSA key.
:type pem_path: ``twisted.python.filepath.FilePath``
:param pem_path: The certificate directory
to ... |
def _parse(reactor, directory, pemdir, *args, **kwargs):
"""
Parse a txacme endpoint description.
:param reactor: The Twisted reactor.
:param directory: ``twisted.python.url.URL`` for the ACME directory to use
for issuing certs.
:param str pemdir: The path to the certificate directory to us... |
def lazyread(f, delimiter):
"""
Generator which continually reads ``f`` to the next instance
of ``delimiter``.
This allows you to do batch processing on the contents of ``f`` without
loading the entire file into memory.
:param f: Any file-like object which has a ``.read()`` method.
:param ... |
def generate_private_key(key_type):
"""
Generate a random private key using sensible parameters.
:param str key_type: The type of key to generate. One of: ``rsa``.
"""
if key_type == u'rsa':
return rsa.generate_private_key(
public_exponent=65537, key_size=2048, backend=default_b... |
def generate_tls_sni_01_cert(server_name, key_type=u'rsa',
_generate_private_key=None):
"""
Generate a certificate/key pair for responding to a tls-sni-01 challenge.
:param str server_name: The SAN the certificate should have.
:param str key_type: The type of key to generat... |
def tap(f):
"""
"Tap" a Deferred callback chain with a function whose return value is
ignored.
"""
@wraps(f)
def _cb(res, *a, **kw):
d = maybeDeferred(f, res, *a, **kw)
d.addCallback(lambda ignored: res)
return d
return _cb |
def decode_csr(b64der):
"""
Decode JOSE Base-64 DER-encoded CSR.
:param str b64der: The encoded CSR.
:rtype: `cryptography.x509.CertificateSigningRequest`
:return: The decoded CSR.
"""
try:
return x509.load_der_x509_csr(
decode_b64jose(b64der), default_backend())
ex... |
def csr_for_names(names, key):
"""
Generate a certificate signing request for the given names and private key.
.. seealso:: `acme.client.Client.request_issuance`
.. seealso:: `generate_private_key`
:param ``List[str]``: One or more names (subjectAltName) for which to
request a certifica... |
def _wrap_parse(code, filename):
"""
async wrapper is required to avoid await calls raising a SyntaxError
"""
code = 'async def wrapper():\n' + indent(code, ' ')
return ast.parse(code, filename=filename).body[0].body[0].value |
def linkcode_resolve(domain, info):
"""
Determine the URL corresponding to Python object
"""
if domain != 'py':
return None
modname = info['module']
fullname = info['fullname']
submod = sys.modules.get(modname)
if submod is None:
return None
obj = submod
for part ... |
def layers_to_solr(self, layers):
"""
Sync n layers in Solr.
"""
layers_dict_list = []
layers_success_ids = []
layers_errors_ids = []
for layer in layers:
layer_dict, message = layer2dict(layer)
if not layer_dict:
layers_e... |
def layer_to_solr(self, layer):
"""
Sync a layer in Solr.
"""
success = True
message = 'Synced layer id %s to Solr' % layer.id
layer_dict, message = layer2dict(layer)
if not layer_dict:
success = False
else:
layer_json = json.dumps... |
def clear_solr(self, catalog="hypermap"):
"""Clear all indexes in the solr core"""
solr_url = "{0}/solr/{1}".format(SEARCH_URL, catalog)
solr = pysolr.Solr(solr_url, timeout=60)
solr.delete(q='*:*')
LOGGER.debug('Solr core cleared') |
def update_schema(self, catalog="hypermap"):
"""
set the mapping in solr.
:param catalog: core
:return:
"""
schema_url = "{0}/solr/{1}/schema".format(SEARCH_URL, catalog)
print schema_url
# create a special type to draw better heatmaps.
location_r... |
def create_layer_from_metadata_xml(resourcetype, xml, monitor=False, service=None, catalog=None):
"""
Create a layer / keyword list from a metadata record if it does not already exist.
"""
from models import gen_anytext, Layer
if resourcetype == 'http://www.opengis.net/cat/csw/2.0.2': # Dublin cor... |
def create_service_from_endpoint(endpoint, service_type, title=None, abstract=None, catalog=None):
"""
Create a service from an endpoint if it does not already exists.
"""
from models import Service
if Service.objects.filter(url=endpoint, catalog=catalog).count() == 0:
# check if endpoint is... |
def create_services_from_endpoint(url, catalog, greedy_opt=True):
"""
Generate service/services from an endpoint.
WMS, WMTS, TMS endpoints correspond to a single service.
ESRI, CSW endpoints corrispond to many services.
:return: imported, message
"""
# this variable will collect any excepti... |
def service_url_parse(url):
"""
Function that parses from url the service and folder of services.
"""
endpoint = get_sanitized_endpoint(url)
url_split_list = url.split(endpoint + '/')
if len(url_split_list) != 0:
url_split_list = url_split_list[1].split('/')
else:
raise Excep... |
def inverse_mercator(xy):
"""
Given coordinates in spherical mercator, return a lon,lat tuple.
"""
lon = (xy[0] / 20037508.34) * 180
lat = (xy[1] / 20037508.34) * 180
lat = 180 / math.pi * \
(2 * math.atan(math.exp(lat * math.pi / 180)) - math.pi / 2)
return (lon, lat) |
def get_wms_version_negotiate(url, timeout=10):
"""
OWSLib wrapper function to perform version negotiation against owslib.wms.WebMapService
"""
try:
LOGGER.debug('Trying a WMS 1.3.0 GetCapabilities request')
return WebMapService(url, version='1.3.0', timeout=timeout)
except Exceptio... |
def get_sanitized_endpoint(url):
"""
Sanitize an endpoint, as removing unneeded parameters
"""
# sanitize esri
sanitized_url = url.rstrip()
esri_string = '/rest/services'
if esri_string in url:
match = re.search(esri_string, sanitized_url)
sanitized_url = url[0:(match.start(0... |
def get_esri_service_name(url):
"""
A method to get a service name from an esri endpoint.
For example: http://example.com/arcgis/rest/services/myservice/mylayer/MapServer/?f=json
Will return: myservice/mylayer
"""
result = re.search('rest/services/(.*)/[MapServer|ImageServer]', url)
if resul... |
def get_esri_extent(esriobj):
"""
Get the extent of an ESRI resource
"""
extent = None
srs = None
if 'fullExtent' in esriobj._json_struct:
extent = esriobj._json_struct['fullExtent']
if 'extent' in esriobj._json_struct:
extent = esriobj._json_struct['extent']
try:
... |
def bbox2wktpolygon(bbox):
"""
Return OGC WKT Polygon of a simple bbox list of strings
"""
minx = float(bbox[0])
miny = float(bbox[1])
maxx = float(bbox[2])
maxy = float(bbox[3])
return 'POLYGON((%.2f %.2f, %.2f %.2f, %.2f %.2f, %.2f %.2f, %.2f %.2f))' \
% (minx, miny, minx, max... |
def get_solr_date(pydate, is_negative):
"""
Returns a date in a valid Solr format from a string.
"""
# check if date is valid and then set it to solr format YYYY-MM-DDThh:mm:ssZ
try:
if isinstance(pydate, datetime.datetime):
solr_date = '%sZ' % pydate.isoformat()[0:19]
... |
def get_date(layer):
"""
Returns a custom date representation. A date can be detected or from metadata.
It can be a range or a simple date in isoformat.
"""
date = None
sign = '+'
date_type = 1
layer_dates = layer.get_layer_dates()
# we index the first date!
if layer_dates:
... |
def layer2dict(layer):
"""
Return a json representation for a layer.
"""
category = None
username = None
# bbox must be valid before proceeding
if not layer.has_valid_bbox():
message = 'Layer id: %s has a not valid bbox' % layer.id
return None, message
# we can proceed... |
def detect_metadata_url_scheme(url):
"""detect whether a url is a Service type that HHypermap supports"""
scheme = None
url_lower = url.lower()
if any(x in url_lower for x in ['wms', 'service=wms']):
scheme = 'OGC:WMS'
if any(x in url_lower for x in ['wmts', 'service=wmts']):
schem... |
def serialize_checks(check_set):
"""
Serialize a check_set for raphael
"""
check_set_list = []
for check in check_set.all()[:25]:
check_set_list.append(
{
'datetime': check.checked_datetime.isoformat(),
'value': check.response_time,
... |
def domains(request):
"""
A page with number of services and layers faceted on domains.
"""
url = ''
query = '*:*&facet=true&facet.limit=-1&facet.pivot=domain_name,service_id&wt=json&indent=true&rows=0'
if settings.SEARCH_TYPE == 'elasticsearch':
url = '%s/select?q=%s' % (settings.SEARCH... |
def tasks_runner(request):
"""
A page that let the admin to run global tasks.
"""
# server info
cached_layers_number = 0
cached_layers = cache.get('layers')
if cached_layers:
cached_layers_number = len(cached_layers)
cached_deleted_layers_number = 0
cached_deleted_layers = ... |
def layer_mapproxy(request, catalog_slug, layer_uuid, path_info):
"""
Get Layer with matching catalog and uuid
"""
layer = get_object_or_404(Layer,
uuid=layer_uuid,
catalog__slug=catalog_slug)
# for WorldMap layers we need to use the url o... |
def parse_datetime(date_str):
"""
Parses a date string to date object.
for BCE dates, only supports the year part.
"""
is_common_era = True
date_str_parts = date_str.split("-")
if date_str_parts and date_str_parts[0] == '':
is_common_era = False
# for now, only support BCE ye... |
def parse_solr_time_range_as_pair(time_filter):
"""
:param time_filter: [2013-03-01 TO 2013-05-01T00:00:00]
:return: (2013-03-01, 2013-05-01T00:00:00)
"""
pattern = "\\[(.*) TO (.*)\\]"
matcher = re.search(pattern, time_filter)
if matcher:
return matcher.group(1), matcher.group(2)
... |
def parse_datetime_range(time_filter):
"""
Parse the url param to python objects.
From what time range to divide by a.time.gap into intervals.
Defaults to q.time and otherwise 90 days.
Validate in API: re.search("\\[(.*) TO (.*)\\]", value)
:param time_filter: [2013-03-01 TO 2013-05-01T00:00:00]... |
def parse_ISO8601(time_gap):
"""
P1D to (1, ("DAYS", isodate.Duration(days=1)).
P1Y to (1, ("YEARS", isodate.Duration(years=1)).
:param time_gap: ISO8601 string.
:return: tuple with quantity and unit of time.
"""
matcher = None
if time_gap.count("T"):
units = {
"H": ... |
def compute_gap(start, end, time_limit):
"""
Compute a gap that seems reasonable, considering natural time units and limit.
# TODO: make it to be reasonable.
# TODO: make it to be small unit of time sensitive.
:param start: datetime
:param end: datetime
:param time_limit: gaps count
:ret... |
def gap_to_sorl(time_gap):
"""
P1D to +1DAY
:param time_gap:
:return: solr's format duration.
"""
quantity, unit = parse_ISO8601(time_gap)
if unit[0] == "WEEKS":
return "+{0}DAYS".format(quantity * 7)
else:
return "+{0}{1}".format(quantity, unit[0]) |
def request_time_facet(field, time_filter, time_gap, time_limit=100):
"""
time facet query builder
:param field: map the query to this field.
:param time_limit: Non-0 triggers time/date range faceting. This value is the maximum number of time ranges to
return when a.time.gap is unspecified. This is ... |
def parse_solr_geo_range_as_pair(geo_box_str):
"""
:param geo_box_str: [-90,-180 TO 90,180]
:return: ("-90,-180", "90,180")
"""
pattern = "\\[(.*) TO (.*)\\]"
matcher = re.search(pattern, geo_box_str)
if matcher:
return matcher.group(1), matcher.group(2)
else:
raise Excep... |
def parse_geo_box(geo_box_str):
"""
parses [-90,-180 TO 90,180] to a shapely.geometry.box
:param geo_box_str:
:return:
"""
from_point_str, to_point_str = parse_solr_geo_range_as_pair(geo_box_str)
from_point = parse_lat_lon(from_point_str)
to_point = parse_lat_lon(to_point_str)
recta... |
def request_heatmap_facet(field, hm_filter, hm_grid_level, hm_limit):
"""
heatmap facet query builder
:param field: map the query to this field.
:param hm_filter: From what region to plot the heatmap. Defaults to q.geo or otherwise the world.
:param hm_grid_level: To explicitly specify the grid leve... |
def asterisk_to_min_max(field, time_filter, search_engine_endpoint, actual_params=None):
"""
traduce [* TO *] to something like [MIN-INDEXED-DATE TO MAX-INDEXED-DATE]
:param field: map the stats to this field.
:param time_filter: this is the value to be translated. think in "[* TO 2000]"
:param sear... |
def get_service(raw_xml):
"""
Set a service object based on the XML metadata
<dct:references scheme="OGC:WMS">http://ngamaps.geointapps.org/arcgis
/services/RIO/Rio_Foundation_Transportation/MapServer/WMSServer
</dct:references>
:param instance:
:return: Layer
"""
from pycsw... |
def query_ids(self, ids):
"""
Query by list of identifiers
"""
results = self._get_repo_filter(Layer.objects).filter(uuid__in=ids).all()
if len(results) == 0: # try services
results = self._get_repo_filter(Service.objects).filter(uuid__in=ids).all()
return... |
def query_domain(self, domain, typenames, domainquerytype='list', count=False):
"""
Query by property domain values
"""
objects = self._get_repo_filter(Layer.objects)
if domainquerytype == 'range':
return [tuple(objects.aggregate(Min(domain), Max(domain)).values())]... |
def query_insert(self, direction='max'):
"""
Query to get latest (default) or earliest update to repository
"""
if direction == 'min':
return Layer.objects.aggregate(
Min('last_updated'))['last_updated__min'].strftime('%Y-%m-%dT%H:%M:%SZ')
return self.... |
def query_source(self, source):
"""
Query by source
"""
return self._get_repo_filter(Layer.objects).filter(url=source) |
def query(self, constraint, sortby=None, typenames=None, maxrecords=10, startposition=0):
"""
Query records from underlying repository
"""
# run the raw query and get total
# we want to exclude layers which are not valid, as it is done in the search engine
if 'where' in ... |
def insert(self, resourcetype, source, insert_date=None):
"""
Insert a record into the repository
"""
caller = inspect.stack()[1][3]
if caller == 'transaction': # insert of Layer
hhclass = 'Layer'
source = resourcetype
resourcetype = resourc... |
def _insert_or_update(self, resourcetype, source, mode='insert', hhclass='Service'):
"""
Insert or update a record in the repository
"""
keywords = []
if self.filter is not None:
catalog = Catalog.objects.get(id=int(self.filter.split()[-1]))
try:
... |
def delete(self, constraint):
"""
Delete a record from the repository
"""
results = self._get_repo_filter(Service.objects).extra(where=[constraint['where']],
params=constraint['values']).all()
deleted = len(results)
... |
def _get_repo_filter(self, query):
"""
Apply repository wide side filter / mask query
"""
if self.filter is not None:
return query.extra(where=[self.filter])
return query |
def to_meshcode(lat, lon, level):
"""緯度経度から指定次の地域メッシュコードを算出する。
Args:
lat: 世界測地系の緯度(度単位)
lon: 世界測地系の経度(度単位)
level: 地域メッシュコードの次数
1次(80km四方):1
40倍(40km四方):40000
20倍(20km四方):20000
16倍(16km四方):16000
2次(10km四方):2
... |
def to_meshlevel(meshcode):
"""メッシュコードから次数を算出する。
Args:
meshcode: メッシュコード
Return:
地域メッシュコードの次数
1次(80km四方):1
40倍(40km四方):40000
20倍(20km四方):20000
16倍(16km四方):16000
2次(10km四方):2
8倍(8km四方):8000
... |
def to_meshpoint(meshcode, lat_multiplier, lon_multiplier):
"""地域メッシュコードから緯度経度を算出する。
下記のメッシュに対応している。
1次(80km四方):1
40倍(40km四方):40000
20倍(20km四方):20000
16倍(16km四方):16000
2次(10km四方):2
8倍(8km四方):8000
... |
def check(func):
"""
Check the permissions, http method and login state.
"""
def iCheck(request, *args, **kwargs):
if not request.method == "POST":
return HttpResponseBadRequest("Must be POST request.")
follow = func(request, *args, **kwargs)
if request.is_ajax():
... |
def register(model, field_name=None, related_name=None, lookup_method_name='get_follows'):
"""
This registers any model class to be follow-able.
"""
if model in registry:
return
registry.append(model)
if not field_name:
field_name = 'target_%s' % model._meta.module_nam... |
def follow(user, obj):
""" Make a user follow an object """
follow, created = Follow.objects.get_or_create(user, obj)
return follow |
def unfollow(user, obj):
""" Make a user unfollow an object """
try:
follow = Follow.objects.get_follows(obj).get(user=user)
follow.delete()
return follow
except Follow.DoesNotExist:
pass |
def toggle(user, obj):
""" Toggles a follow status. Useful function if you don't want to perform follow
checks but just toggle it on / off. """
if Follow.objects.is_following(user, obj):
return unfollow(user, obj)
return follow(user, obj) |
def validate_q_time(self, value):
"""
Would be for example: [2013-03-01 TO 2013-04-01T00:00:00] and/or [* TO *]
Returns a valid sorl value. [2013-03-01T00:00:00Z TO 2013-04-01T00:00:00Z] and/or [* TO *]
"""
if value:
try:
range = utils.parse_datetime_r... |
def validate_q_geo(self, value):
"""
Would be for example: [-90,-180 TO 90,180]
"""
if value:
try:
rectangle = utils.parse_geo_box(value)
return "[{0},{1} TO {2},{3}]".format(
rectangle.bounds[0],
rectang... |
def validate_a_time_filter(self, value):
"""
Would be for example: [2013-03-01 TO 2013-04-01:00:00:00] and/or [* TO *]
"""
if value:
try:
utils.parse_datetime_range(value)
except Exception as e:
raise serializers.ValidationError(e.m... |
def fname(self, model_or_obj_or_qs):
"""
Return the field name on the :class:`Follow` model for ``model_or_obj_or_qs``.
"""
if isinstance(model_or_obj_or_qs, QuerySet):
_, fname = model_map[model_or_obj_or_qs.model]
else:
cls = model_or_obj_or_qs if inspe... |
def create(self, user, obj, **kwargs):
"""
Create a new follow link between a user and an object
of a registered model type.
"""
follow = Follow(user=user)
follow.target = obj
follow.save()
return follow |
def get_or_create(self, user, obj, **kwargs):
"""
Almost the same as `FollowManager.objects.create` - behaves the same
as the normal `get_or_create` methods in django though.
Returns a tuple with the `Follow` and either `True` or `False`
"""
if not self.is_following(... |
def is_following(self, user, obj):
""" Returns `True` or `False` """
if isinstance(user, AnonymousUser):
return False
return 0 < self.get_follows(obj).filter(user=user).count() |
def get_follows(self, model_or_obj_or_qs):
"""
Returns all the followers of a model, an object or a queryset.
"""
fname = self.fname(model_or_obj_or_qs)
if isinstance(model_or_obj_or_qs, QuerySet):
return self.filter(**{'%s__in' % fname: model_or_obj_or_qs})
... |
def create_event_regressors(self, event_times_indices, covariates = None, durations = None):
"""create_event_regressors creates the part of the design matrix corresponding to one event type.
:param event_times_indices: indices in the resampled data, on which the events occurred.
:type ... |
def create_design_matrix(self, demean = False, intercept = True):
"""create_design_matrix calls create_event_regressors for each of the covariates in the self.covariates dict. self.designmatrix is created and is shaped (nr_regressors, self.resampled_signal.shape[-1])
"""
self.design_matrix = np.... |
def add_continuous_regressors_to_design_matrix(self, regressors):
"""add_continuous_regressors_to_design_matrix appends continuously sampled regressors to the existing design matrix. One uses this addition to the design matrix when one expects the data to contain nuisance factors that aren't tied to the moments... |
def regress(self, method = 'lstsq'):
"""regress performs linear least squares regression of the designmatrix on the data.
:param method: method, or backend to be used for the regression analysis.
:type method: string, one of ['lstsq', 'sm_ols']
:returns: instance variables ... |
def ridge_regress(self, cv = 20, alphas = None ):
"""perform k-folds cross-validated ridge regression on the design_matrix. To be used when the design matrix contains very collinear regressors. For cross-validation and ridge fitting, we use sklearn's RidgeCV functionality. Note: intercept is not fit, and data a... |
def betas_for_cov(self, covariate = '0'):
"""betas_for_cov returns the beta values (i.e. IRF) associated with a specific covariate.
:param covariate: name of covariate.
:type covariate: string
"""
# find the index in the designmatrix of the current covariate
this... |
def betas_for_events(self):
"""betas_for_events creates an internal self.betas_per_event_type array, of (nr_covariates x self.devonvolution_interval_size),
which holds the outcome betas per event type,in the order generated by self.covariates.keys()
"""
self.betas_per_event_type = np.ze... |
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