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Added delete option to database storage.

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Batuhan Berk Başoğlu 2020-10-12 12:10:01 -04:00
parent 308604a33c
commit 963b5bc68b
1868 changed files with 192402 additions and 13278 deletions
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221
venv/Lib/site-packages/requests/models.py
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@ -7,30 +7,37 @@ requests.models
This module contains the primary objects that power Requests.
"""
import collections
import datetime
import sys
from io import BytesIO, UnsupportedOperation
# Import encoding now, to avoid implicit import later.
# Implicit import within threads may cause LookupError when standard library is in a ZIP,
# such as in Embedded Python. See https://github.com/psf/requests/issues/3578.
import encodings.idna
from urllib3.fields import RequestField
from urllib3.filepost import encode_multipart_formdata
from urllib3.util import parse_url
from urllib3.exceptions import (
DecodeError, ReadTimeoutError, ProtocolError, LocationParseError)
from io import UnsupportedOperation
from .hooks import default_hooks
from .structures import CaseInsensitiveDict
from .auth import HTTPBasicAuth
from .cookies import cookiejar_from_dict, get_cookie_header, _copy_cookie_jar
from .packages.urllib3.fields import RequestField
from .packages.urllib3.filepost import encode_multipart_formdata
from .packages.urllib3.util import parse_url
from .packages.urllib3.exceptions import (
DecodeError, ReadTimeoutError, ProtocolError, LocationParseError)
from .exceptions import (
HTTPError, MissingSchema, InvalidURL, ChunkedEncodingError,
ContentDecodingError, ConnectionError, StreamConsumedError)
from ._internal_utils import to_native_string, unicode_is_ascii
from .utils import (
guess_filename, get_auth_from_url, requote_uri,
stream_decode_response_unicode, to_key_val_list, parse_header_links,
iter_slices, guess_json_utf, super_len, to_native_string,
check_header_validity)
iter_slices, guess_json_utf, super_len, check_header_validity)
from .compat import (
cookielib, urlunparse, urlsplit, urlencode, str, bytes, StringIO,
Callable, Mapping,
cookielib, urlunparse, urlsplit, urlencode, str, bytes,
is_py2, chardet, builtin_str, basestring)
from .compat import json as complexjson
from .status_codes import codes
@ -148,8 +155,12 @@ class RequestEncodingMixin(object):
if isinstance(fp, (str, bytes, bytearray)):
fdata = fp
else:
elif hasattr(fp, 'read'):
fdata = fp.read()
elif fp is None:
continue
else:
fdata = fp
rf = RequestField(name=k, data=fdata, filename=fn, headers=fh)
rf.make_multipart(content_type=ft)
@ -167,10 +178,10 @@ class RequestHooksMixin(object):
if event not in self.hooks:
raise ValueError('Unsupported event specified, with event name "%s"' % (event))
if isinstance(hook, collections.Callable):
if isinstance(hook, Callable):
self.hooks[event].append(hook)
elif hasattr(hook, '__iter__'):
self.hooks[event].extend(h for h in hook if isinstance(h, collections.Callable))
self.hooks[event].extend(h for h in hook if isinstance(h, Callable))
def deregister_hook(self, event, hook):
"""Deregister a previously registered hook.
@ -193,9 +204,13 @@ class Request(RequestHooksMixin):
:param url: URL to send.
:param headers: dictionary of headers to send.
:param files: dictionary of {filename: fileobject} files to multipart upload.
:param data: the body to attach to the request. If a dictionary is provided, form-encoding will take place.
:param data: the body to attach to the request. If a dictionary or
list of tuples ``[(key, value)]`` is provided, form-encoding will
take place.
:param json: json for the body to attach to the request (if files or data is not specified).
:param params: dictionary of URL parameters to append to the URL.
:param params: URL parameters to append to the URL. If a dictionary or
list of tuples ``[(key, value)]`` is provided, form-encoding will
take place.
:param auth: Auth handler or (user, pass) tuple.
:param cookies: dictionary or CookieJar of cookies to attach to this request.
:param hooks: dictionary of callback hooks, for internal usage.
@ -203,13 +218,14 @@ class Request(RequestHooksMixin):
Usage::
>>> import requests
>>> req = requests.Request('GET', 'http://httpbin.org/get')
>>> req = requests.Request('GET', 'https://httpbin.org/get')
>>> req.prepare()
<PreparedRequest [GET]>
"""
def __init__(self, method=None, url=None, headers=None, files=None,
data=None, params=None, auth=None, cookies=None, hooks=None, json=None):
def __init__(self,
method=None, url=None, headers=None, files=None, data=None,
params=None, auth=None, cookies=None, hooks=None, json=None):
# Default empty dicts for dict params.
data = [] if data is None else data
@ -262,8 +278,9 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
Usage::
>>> import requests
>>> req = requests.Request('GET', 'http://httpbin.org/get')
>>> req = requests.Request('GET', 'https://httpbin.org/get')
>>> r = req.prepare()
>>> r
<PreparedRequest [GET]>
>>> s = requests.Session()
@ -285,9 +302,12 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
self.body = None
#: dictionary of callback hooks, for internal usage.
self.hooks = default_hooks()
#: integer denoting starting position of a readable file-like body.
self._body_position = None
def prepare(self, method=None, url=None, headers=None, files=None,
data=None, params=None, auth=None, cookies=None, hooks=None, json=None):
def prepare(self,
method=None, url=None, headers=None, files=None, data=None,
params=None, auth=None, cookies=None, hooks=None, json=None):
"""Prepares the entire request with the given parameters."""
self.prepare_method(method)
@ -314,6 +334,7 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
p._cookies = _copy_cookie_jar(self._cookies)
p.body = self.body
p.hooks = self.hooks
p._body_position = self._body_position
return p
def prepare_method(self, method):
@ -322,18 +343,31 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
if self.method is not None:
self.method = to_native_string(self.method.upper())
@staticmethod
def _get_idna_encoded_host(host):
import idna
try:
host = idna.encode(host, uts46=True).decode('utf-8')
except idna.IDNAError:
raise UnicodeError
return host
def prepare_url(self, url, params):
"""Prepares the given HTTP URL."""
#: Accept objects that have string representations.
#: We're unable to blindly call unicode/str functions
#: as this will include the bytestring indicator (b'')
#: on python 3.x.
#: https://github.com/kennethreitz/requests/pull/2238
#: https://github.com/psf/requests/pull/2238
if isinstance(url, bytes):
url = url.decode('utf8')
else:
url = unicode(url) if is_py2 else str(url)
# Remove leading whitespaces from url
url = url.lstrip()
# Don't do any URL preparation for non-HTTP schemes like `mailto`,
# `data` etc to work around exceptions from `url_parse`, which
# handles RFC 3986 only.
@ -356,10 +390,16 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
if not host:
raise InvalidURL("Invalid URL %r: No host supplied" % url)
# Only want to apply IDNA to the hostname
try:
host = host.encode('idna').decode('utf-8')
except UnicodeError:
# In general, we want to try IDNA encoding the hostname if the string contains
# non-ASCII characters. This allows users to automatically get the correct IDNA
# behaviour. For strings containing only ASCII characters, we need to also verify
# it doesn't start with a wildcard (*), before allowing the unencoded hostname.
if not unicode_is_ascii(host):
try:
host = self._get_idna_encoded_host(host)
except UnicodeError:
raise InvalidURL('URL has an invalid label.')
elif host.startswith(u'*'):
raise InvalidURL('URL has an invalid label.')
# Carefully reconstruct the network location
@ -419,7 +459,6 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
# Nottin' on you.
body = None
content_type = None
length = None
if not data and json is not None:
# urllib3 requires a bytes-like body. Python 2's json.dumps
@ -431,17 +470,28 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
is_stream = all([
hasattr(data, '__iter__'),
not isinstance(data, (basestring, list, tuple, dict))
not isinstance(data, (basestring, list, tuple, Mapping))
])
try:
length = super_len(data)
except (TypeError, AttributeError, UnsupportedOperation):
length = None
if is_stream:
try:
length = super_len(data)
except (TypeError, AttributeError, UnsupportedOperation):
length = None
body = data
if getattr(body, 'tell', None) is not None:
# Record the current file position before reading.
# This will allow us to rewind a file in the event
# of a redirect.
try:
self._body_position = body.tell()
except (IOError, OSError):
# This differentiates from None, allowing us to catch
# a failed `tell()` later when trying to rewind the body
self._body_position = object()
if files:
raise NotImplementedError('Streamed bodies and files are mutually exclusive.')
@ -470,17 +520,16 @@ class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
self.body = body
def prepare_content_length(self, body):
if hasattr(body, 'seek') and hasattr(body, 'tell'):
curr_pos = body.tell()
body.seek(0, 2)
end_pos = body.tell()
self.headers['Content-Length'] = builtin_str(max(0, end_pos - curr_pos))
body.seek(curr_pos, 0)
elif body is not None:
l = super_len(body)
if l:
self.headers['Content-Length'] = builtin_str(l)
elif (self.method not in ('GET', 'HEAD')) and (self.headers.get('Content-Length') is None):
"""Prepare Content-Length header based on request method and body"""
if body is not None:
length = super_len(body)
if length:
# If length exists, set it. Otherwise, we fallback
# to Transfer-Encoding: chunked.
self.headers['Content-Length'] = builtin_str(length)
elif self.method not in ('GET', 'HEAD') and self.headers.get('Content-Length') is None:
# Set Content-Length to 0 for methods that can have a body
# but don't provide one. (i.e. not GET or HEAD)
self.headers['Content-Length'] = '0'
def prepare_auth(self, auth, url=''):
@ -546,10 +595,9 @@ class Response(object):
]
def __init__(self):
super(Response, self).__init__()
self._content = False
self._content_consumed = False
self._next = None
#: Integer Code of responded HTTP Status, e.g. 404 or 200.
self.status_code = None
@ -561,7 +609,7 @@ class Response(object):
#: File-like object representation of response (for advanced usage).
#: Use of ``raw`` requires that ``stream=True`` be set on the request.
# This requirement does not apply for use internally to Requests.
#: This requirement does not apply for use internally to Requests.
self.raw = None
#: Final URL location of Response.
@ -593,16 +641,19 @@ class Response(object):
#: is a response.
self.request = None
def __enter__(self):
return self
def __exit__(self, *args):
self.close()
def __getstate__(self):
# Consume everything; accessing the content attribute makes
# sure the content has been fully read.
if not self._content_consumed:
self.content
return dict(
(attr, getattr(self, attr, None))
for attr in self.__attrs__
)
return {attr: getattr(self, attr, None) for attr in self.__attrs__}
def __setstate__(self, state):
for name, value in state.items():
@ -616,11 +667,23 @@ class Response(object):
return '<Response [%s]>' % (self.status_code)
def __bool__(self):
"""Returns true if :attr:`status_code` is 'OK'."""
"""Returns True if :attr:`status_code` is less than 400.
This attribute checks if the status code of the response is between
400 and 600 to see if there was a client error or a server error. If
the status code, is between 200 and 400, this will return True. This
is **not** a check to see if the response code is ``200 OK``.
"""
return self.ok
def __nonzero__(self):
"""Returns true if :attr:`status_code` is 'OK'."""
"""Returns True if :attr:`status_code` is less than 400.
This attribute checks if the status code of the response is between
400 and 600 to see if there was a client error or a server error. If
the status code, is between 200 and 400, this will return True. This
is **not** a check to see if the response code is ``200 OK``.
"""
return self.ok
def __iter__(self):
@ -629,6 +692,13 @@ class Response(object):
@property
def ok(self):
"""Returns True if :attr:`status_code` is less than 400, False if not.
This attribute checks if the status code of the response is between
400 and 600 to see if there was a client error or a server error. If
the status code is between 200 and 400, this will return True. This
is **not** a check to see if the response code is ``200 OK``.
"""
try:
self.raise_for_status()
except HTTPError:
@ -644,12 +714,17 @@ class Response(object):
@property
def is_permanent_redirect(self):
"""True if this Response one of the permanent versions of redirect"""
"""True if this Response one of the permanent versions of redirect."""
return ('location' in self.headers and self.status_code in (codes.moved_permanently, codes.permanent_redirect))
@property
def next(self):
"""Returns a PreparedRequest for the next request in a redirect chain, if there is one."""
return self._next
@property
def apparent_encoding(self):
"""The apparent encoding, provided by the chardet library"""
"""The apparent encoding, provided by the chardet library."""
return chardet.detect(self.content)['encoding']
def iter_content(self, chunk_size=1, decode_unicode=False):
@ -707,7 +782,7 @@ class Response(object):
return chunks
def iter_lines(self, chunk_size=ITER_CHUNK_SIZE, decode_unicode=None, delimiter=None):
def iter_lines(self, chunk_size=ITER_CHUNK_SIZE, decode_unicode=False, delimiter=None):
"""Iterates over the response data, one line at a time. When
stream=True is set on the request, this avoids reading the
content at once into memory for large responses.
@ -744,18 +819,14 @@ class Response(object):
if self._content is False:
# Read the contents.
try:
if self._content_consumed:
raise RuntimeError(
'The content for this response was already consumed')
if self._content_consumed:
raise RuntimeError(
'The content for this response was already consumed')
if self.status_code == 0:
self._content = None
else:
self._content = bytes().join(self.iter_content(CONTENT_CHUNK_SIZE)) or bytes()
except AttributeError:
if self.status_code == 0 or self.raw is None:
self._content = None
else:
self._content = b''.join(self.iter_content(CONTENT_CHUNK_SIZE)) or b''
self._content_consumed = True
# don't need to release the connection; that's been handled by urllib3
@ -801,9 +872,10 @@ class Response(object):
return content
def json(self, **kwargs):
"""Returns the json-encoded content of a response, if any.
r"""Returns the json-encoded content of a response, if any.
:param \*\*kwargs: Optional arguments that ``json.loads`` takes.
:raises ValueError: If the response body does not contain valid json.
"""
if not self.encoding and self.content and len(self.content) > 3:
@ -844,11 +916,18 @@ class Response(object):
return l
def raise_for_status(self):
"""Raises stored :class:`HTTPError`, if one occurred."""
"""Raises :class:`HTTPError`, if one occurred."""
http_error_msg = ''
if isinstance(self.reason, bytes):
reason = self.reason.decode('utf-8', 'ignore')
# We attempt to decode utf-8 first because some servers
# choose to localize their reason strings. If the string
# isn't utf-8, we fall back to iso-8859-1 for all other
# encodings. (See PR #3538)
try:
reason = self.reason.decode('utf-8')
except UnicodeDecodeError:
reason = self.reason.decode('iso-8859-1')
else:
reason = self.reason
@ -870,4 +949,6 @@ class Response(object):
if not self._content_consumed:
self.raw.close()
return self.raw.release_conn()
release_conn = getattr(self.raw, 'release_conn', None)
if release_conn is not None:
release_conn()