mirror of
https://github.com/moparisthebest/SickRage
synced 2024-11-18 07:15:13 -05:00
05410e2aa0
Replaced urllib2 with requests for both TVDB and TVRage. Updated cache cleanup code to process both TVDB and TVRage cache folders.
802 lines
26 KiB
Python
802 lines
26 KiB
Python
# -*- coding: utf-8 -*-
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"""
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requests.models
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~~~~~~~~~~~~~~~
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This module contains the primary objects that power Requests.
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"""
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import collections
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import datetime
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from io import BytesIO, UnsupportedOperation
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from .hooks import default_hooks
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from .structures import CaseInsensitiveDict
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from .auth import HTTPBasicAuth
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from .cookies import cookiejar_from_dict, get_cookie_header
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from .packages.urllib3.fields import RequestField
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from .packages.urllib3.filepost import encode_multipart_formdata
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from .packages.urllib3.util import parse_url
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from .packages.urllib3.exceptions import DecodeError
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from .exceptions import (
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HTTPError, RequestException, MissingSchema, InvalidURL,
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ChunkedEncodingError, ContentDecodingError)
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from .utils import (
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guess_filename, get_auth_from_url, requote_uri,
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stream_decode_response_unicode, to_key_val_list, parse_header_links,
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iter_slices, guess_json_utf, super_len, to_native_string)
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from .compat import (
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cookielib, urlunparse, urlsplit, urlencode, str, bytes, StringIO,
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is_py2, chardet, json, builtin_str, basestring, IncompleteRead)
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from .status_codes import codes
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#: The set of HTTP status codes that indicate an automatically
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#: processable redirect.
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REDIRECT_STATI = (
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codes.moved, # 301
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codes.found, # 302
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codes.other, # 303
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codes.temporary_moved, # 307
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)
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DEFAULT_REDIRECT_LIMIT = 30
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CONTENT_CHUNK_SIZE = 10 * 1024
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ITER_CHUNK_SIZE = 512
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class RequestEncodingMixin(object):
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@property
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def path_url(self):
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"""Build the path URL to use."""
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url = []
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p = urlsplit(self.url)
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path = p.path
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if not path:
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path = '/'
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url.append(path)
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query = p.query
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if query:
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url.append('?')
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url.append(query)
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return ''.join(url)
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@staticmethod
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def _encode_params(data):
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"""Encode parameters in a piece of data.
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Will successfully encode parameters when passed as a dict or a list of
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2-tuples. Order is retained if data is a list of 2-tuples but arbitrary
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if parameters are supplied as a dict.
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"""
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if isinstance(data, (str, bytes)):
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return data
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elif hasattr(data, 'read'):
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return data
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elif hasattr(data, '__iter__'):
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result = []
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for k, vs in to_key_val_list(data):
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if isinstance(vs, basestring) or not hasattr(vs, '__iter__'):
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vs = [vs]
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for v in vs:
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if v is not None:
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result.append(
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(k.encode('utf-8') if isinstance(k, str) else k,
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v.encode('utf-8') if isinstance(v, str) else v))
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return urlencode(result, doseq=True)
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else:
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return data
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@staticmethod
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def _encode_files(files, data):
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"""Build the body for a multipart/form-data request.
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Will successfully encode files when passed as a dict or a list of
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2-tuples. Order is retained if data is a list of 2-tuples but arbitrary
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if parameters are supplied as a dict.
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"""
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if (not files):
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raise ValueError("Files must be provided.")
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elif isinstance(data, basestring):
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raise ValueError("Data must not be a string.")
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new_fields = []
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fields = to_key_val_list(data or {})
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files = to_key_val_list(files or {})
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for field, val in fields:
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if isinstance(val, basestring) or not hasattr(val, '__iter__'):
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val = [val]
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for v in val:
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if v is not None:
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# Don't call str() on bytestrings: in Py3 it all goes wrong.
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if not isinstance(v, bytes):
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v = str(v)
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new_fields.append(
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(field.decode('utf-8') if isinstance(field, bytes) else field,
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v.encode('utf-8') if isinstance(v, str) else v))
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for (k, v) in files:
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# support for explicit filename
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ft = None
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fh = None
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if isinstance(v, (tuple, list)):
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if len(v) == 2:
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fn, fp = v
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elif len(v) == 3:
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fn, fp, ft = v
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else:
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fn, fp, ft, fh = v
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else:
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fn = guess_filename(v) or k
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fp = v
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if isinstance(fp, str):
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fp = StringIO(fp)
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if isinstance(fp, bytes):
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fp = BytesIO(fp)
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rf = RequestField(name=k, data=fp.read(),
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filename=fn, headers=fh)
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rf.make_multipart(content_type=ft)
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new_fields.append(rf)
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body, content_type = encode_multipart_formdata(new_fields)
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return body, content_type
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class RequestHooksMixin(object):
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def register_hook(self, event, hook):
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"""Properly register a hook."""
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if event not in self.hooks:
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raise ValueError('Unsupported event specified, with event name "%s"' % (event))
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if isinstance(hook, collections.Callable):
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self.hooks[event].append(hook)
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elif hasattr(hook, '__iter__'):
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self.hooks[event].extend(h for h in hook if isinstance(h, collections.Callable))
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def deregister_hook(self, event, hook):
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"""Deregister a previously registered hook.
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Returns True if the hook existed, False if not.
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"""
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try:
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self.hooks[event].remove(hook)
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return True
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except ValueError:
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return False
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class Request(RequestHooksMixin):
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"""A user-created :class:`Request <Request>` object.
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Used to prepare a :class:`PreparedRequest <PreparedRequest>`, which is sent to the server.
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:param method: HTTP method to use.
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:param url: URL to send.
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:param headers: dictionary of headers to send.
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:param files: dictionary of {filename: fileobject} files to multipart upload.
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:param data: the body to attach the request. If a dictionary is provided, form-encoding will take place.
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:param params: dictionary of URL parameters to append to the URL.
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:param auth: Auth handler or (user, pass) tuple.
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:param cookies: dictionary or CookieJar of cookies to attach to this request.
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:param hooks: dictionary of callback hooks, for internal usage.
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Usage::
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>>> import requests
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>>> req = requests.Request('GET', 'http://httpbin.org/get')
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>>> req.prepare()
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<PreparedRequest [GET]>
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"""
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def __init__(self,
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method=None,
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url=None,
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headers=None,
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files=None,
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data=None,
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params=None,
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auth=None,
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cookies=None,
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hooks=None):
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# Default empty dicts for dict params.
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data = [] if data is None else data
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files = [] if files is None else files
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headers = {} if headers is None else headers
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params = {} if params is None else params
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hooks = {} if hooks is None else hooks
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self.hooks = default_hooks()
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for (k, v) in list(hooks.items()):
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self.register_hook(event=k, hook=v)
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self.method = method
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self.url = url
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self.headers = headers
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self.files = files
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self.data = data
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self.params = params
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self.auth = auth
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self.cookies = cookies
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def __repr__(self):
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return '<Request [%s]>' % (self.method)
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def prepare(self):
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"""Constructs a :class:`PreparedRequest <PreparedRequest>` for transmission and returns it."""
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p = PreparedRequest()
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p.prepare(
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method=self.method,
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url=self.url,
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headers=self.headers,
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files=self.files,
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data=self.data,
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params=self.params,
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auth=self.auth,
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cookies=self.cookies,
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hooks=self.hooks,
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)
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return p
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class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
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"""The fully mutable :class:`PreparedRequest <PreparedRequest>` object,
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containing the exact bytes that will be sent to the server.
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Generated from either a :class:`Request <Request>` object or manually.
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Usage::
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>>> import requests
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>>> req = requests.Request('GET', 'http://httpbin.org/get')
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>>> r = req.prepare()
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<PreparedRequest [GET]>
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>>> s = requests.Session()
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>>> s.send(r)
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<Response [200]>
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"""
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def __init__(self):
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#: HTTP verb to send to the server.
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self.method = None
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#: HTTP URL to send the request to.
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self.url = None
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#: dictionary of HTTP headers.
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self.headers = None
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# The `CookieJar` used to create the Cookie header will be stored here
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# after prepare_cookies is called
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self._cookies = None
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#: request body to send to the server.
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self.body = None
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#: dictionary of callback hooks, for internal usage.
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self.hooks = default_hooks()
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def prepare(self, method=None, url=None, headers=None, files=None,
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data=None, params=None, auth=None, cookies=None, hooks=None):
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"""Prepares the entire request with the given parameters."""
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self.prepare_method(method)
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self.prepare_url(url, params)
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self.prepare_headers(headers)
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self.prepare_cookies(cookies)
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self.prepare_body(data, files)
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self.prepare_auth(auth, url)
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# Note that prepare_auth must be last to enable authentication schemes
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# such as OAuth to work on a fully prepared request.
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# This MUST go after prepare_auth. Authenticators could add a hook
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self.prepare_hooks(hooks)
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def __repr__(self):
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return '<PreparedRequest [%s]>' % (self.method)
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def copy(self):
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p = PreparedRequest()
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p.method = self.method
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p.url = self.url
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p.headers = self.headers.copy()
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p._cookies = self._cookies.copy()
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p.body = self.body
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p.hooks = self.hooks
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return p
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def prepare_method(self, method):
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"""Prepares the given HTTP method."""
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self.method = method
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if self.method is not None:
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self.method = self.method.upper()
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def prepare_url(self, url, params):
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"""Prepares the given HTTP URL."""
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#: Accept objects that have string representations.
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try:
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url = unicode(url)
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except NameError:
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# We're on Python 3.
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url = str(url)
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except UnicodeDecodeError:
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pass
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# Don't do any URL preparation for oddball schemes
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if ':' in url and not url.lower().startswith('http'):
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self.url = url
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return
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# Support for unicode domain names and paths.
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scheme, auth, host, port, path, query, fragment = parse_url(url)
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if not scheme:
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raise MissingSchema("Invalid URL {0!r}: No schema supplied. "
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"Perhaps you meant http://{0}?".format(url))
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if not host:
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raise InvalidURL("Invalid URL %r: No host supplied" % url)
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# Only want to apply IDNA to the hostname
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try:
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host = host.encode('idna').decode('utf-8')
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except UnicodeError:
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raise InvalidURL('URL has an invalid label.')
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# Carefully reconstruct the network location
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netloc = auth or ''
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if netloc:
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netloc += '@'
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netloc += host
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if port:
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netloc += ':' + str(port)
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# Bare domains aren't valid URLs.
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if not path:
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path = '/'
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if is_py2:
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if isinstance(scheme, str):
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scheme = scheme.encode('utf-8')
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if isinstance(netloc, str):
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netloc = netloc.encode('utf-8')
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if isinstance(path, str):
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path = path.encode('utf-8')
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if isinstance(query, str):
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query = query.encode('utf-8')
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if isinstance(fragment, str):
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fragment = fragment.encode('utf-8')
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enc_params = self._encode_params(params)
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if enc_params:
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if query:
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query = '%s&%s' % (query, enc_params)
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else:
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query = enc_params
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url = requote_uri(urlunparse([scheme, netloc, path, None, query, fragment]))
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self.url = url
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def prepare_headers(self, headers):
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"""Prepares the given HTTP headers."""
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if headers:
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self.headers = CaseInsensitiveDict((to_native_string(name), value) for name, value in headers.items())
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else:
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self.headers = CaseInsensitiveDict()
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def prepare_body(self, data, files):
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"""Prepares the given HTTP body data."""
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# Check if file, fo, generator, iterator.
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# If not, run through normal process.
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# Nottin' on you.
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body = None
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content_type = None
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length = None
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is_stream = all([
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hasattr(data, '__iter__'),
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not isinstance(data, basestring),
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not isinstance(data, list),
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not isinstance(data, dict)
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])
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try:
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length = super_len(data)
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except (TypeError, AttributeError, UnsupportedOperation):
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length = None
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if is_stream:
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body = data
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if files:
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raise NotImplementedError('Streamed bodies and files are mutually exclusive.')
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if length is not None:
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self.headers['Content-Length'] = builtin_str(length)
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else:
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self.headers['Transfer-Encoding'] = 'chunked'
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else:
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# Multi-part file uploads.
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if files:
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(body, content_type) = self._encode_files(files, data)
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else:
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if data:
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body = self._encode_params(data)
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if isinstance(data, str) or isinstance(data, builtin_str) or hasattr(data, 'read'):
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content_type = None
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else:
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content_type = 'application/x-www-form-urlencoded'
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self.prepare_content_length(body)
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# Add content-type if it wasn't explicitly provided.
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if (content_type) and (not 'content-type' in self.headers):
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self.headers['Content-Type'] = content_type
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self.body = body
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def prepare_content_length(self, body):
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if hasattr(body, 'seek') and hasattr(body, 'tell'):
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body.seek(0, 2)
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self.headers['Content-Length'] = builtin_str(body.tell())
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body.seek(0, 0)
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elif body is not None:
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l = super_len(body)
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if l:
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self.headers['Content-Length'] = builtin_str(l)
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elif self.method not in ('GET', 'HEAD'):
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self.headers['Content-Length'] = '0'
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def prepare_auth(self, auth, url=''):
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"""Prepares the given HTTP auth data."""
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# If no Auth is explicitly provided, extract it from the URL first.
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if auth is None:
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url_auth = get_auth_from_url(self.url)
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auth = url_auth if any(url_auth) else None
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if auth:
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if isinstance(auth, tuple) and len(auth) == 2:
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# special-case basic HTTP auth
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auth = HTTPBasicAuth(*auth)
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# Allow auth to make its changes.
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r = auth(self)
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# Update self to reflect the auth changes.
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self.__dict__.update(r.__dict__)
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# Recompute Content-Length
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self.prepare_content_length(self.body)
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def prepare_cookies(self, cookies):
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"""Prepares the given HTTP cookie data."""
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if isinstance(cookies, cookielib.CookieJar):
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self._cookies = cookies
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else:
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self._cookies = cookiejar_from_dict(cookies)
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cookie_header = get_cookie_header(self._cookies, self)
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if cookie_header is not None:
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self.headers['Cookie'] = cookie_header
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def prepare_hooks(self, hooks):
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"""Prepares the given hooks."""
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for event in hooks:
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self.register_hook(event, hooks[event])
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class Response(object):
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"""The :class:`Response <Response>` object, which contains a
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server's response to an HTTP request.
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"""
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__attrs__ = [
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'_content',
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'status_code',
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'headers',
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'url',
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'history',
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'encoding',
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'reason',
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'cookies',
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'elapsed',
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'request',
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]
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def __init__(self):
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super(Response, self).__init__()
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self._content = False
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self._content_consumed = False
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#: Integer Code of responded HTTP Status, e.g. 404 or 200.
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self.status_code = None
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#: Case-insensitive Dictionary of Response Headers.
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#: For example, ``headers['content-encoding']`` will return the
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#: value of a ``'Content-Encoding'`` response header.
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self.headers = CaseInsensitiveDict()
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#: File-like object representation of response (for advanced usage).
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#: Use of ``raw`` requires that ``stream=True`` be set on the request.
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# This requirement does not apply for use internally to Requests.
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self.raw = None
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#: Final URL location of Response.
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self.url = None
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#: Encoding to decode with when accessing r.text.
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self.encoding = None
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#: A list of :class:`Response <Response>` objects from
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#: the history of the Request. Any redirect responses will end
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#: up here. The list is sorted from the oldest to the most recent request.
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self.history = []
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#: Textual reason of responded HTTP Status, e.g. "Not Found" or "OK".
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self.reason = None
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|
|
#: A CookieJar of Cookies the server sent back.
|
|
self.cookies = cookiejar_from_dict({})
|
|
|
|
#: The amount of time elapsed between sending the request
|
|
#: and the arrival of the response (as a timedelta)
|
|
self.elapsed = datetime.timedelta(0)
|
|
|
|
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__
|
|
)
|
|
|
|
def __setstate__(self, state):
|
|
for name, value in state.items():
|
|
setattr(self, name, value)
|
|
|
|
# pickled objects do not have .raw
|
|
setattr(self, '_content_consumed', True)
|
|
setattr(self, 'raw', None)
|
|
|
|
def __repr__(self):
|
|
return '<Response [%s]>' % (self.status_code)
|
|
|
|
def __bool__(self):
|
|
"""Returns true if :attr:`status_code` is 'OK'."""
|
|
return self.ok
|
|
|
|
def __nonzero__(self):
|
|
"""Returns true if :attr:`status_code` is 'OK'."""
|
|
return self.ok
|
|
|
|
def __iter__(self):
|
|
"""Allows you to use a response as an iterator."""
|
|
return self.iter_content(128)
|
|
|
|
@property
|
|
def ok(self):
|
|
try:
|
|
self.raise_for_status()
|
|
except RequestException:
|
|
return False
|
|
return True
|
|
|
|
@property
|
|
def is_redirect(self):
|
|
"""True if this Response is a well-formed HTTP redirect that could have
|
|
been processed automatically (by :meth:`Session.resolve_redirects`).
|
|
"""
|
|
return ('location' in self.headers and self.status_code in REDIRECT_STATI)
|
|
|
|
@property
|
|
def apparent_encoding(self):
|
|
"""The apparent encoding, provided by the chardet library"""
|
|
return chardet.detect(self.content)['encoding']
|
|
|
|
def iter_content(self, chunk_size=1, decode_unicode=False):
|
|
"""Iterates over the response data. When stream=True is set on the
|
|
request, this avoids reading the content at once into memory for
|
|
large responses. The chunk size is the number of bytes it should
|
|
read into memory. This is not necessarily the length of each item
|
|
returned as decoding can take place.
|
|
"""
|
|
if self._content_consumed:
|
|
# simulate reading small chunks of the content
|
|
return iter_slices(self._content, chunk_size)
|
|
|
|
def generate():
|
|
try:
|
|
# Special case for urllib3.
|
|
try:
|
|
for chunk in self.raw.stream(chunk_size, decode_content=True):
|
|
yield chunk
|
|
except IncompleteRead as e:
|
|
raise ChunkedEncodingError(e)
|
|
except DecodeError as e:
|
|
raise ContentDecodingError(e)
|
|
except AttributeError:
|
|
# Standard file-like object.
|
|
while True:
|
|
chunk = self.raw.read(chunk_size)
|
|
if not chunk:
|
|
break
|
|
yield chunk
|
|
|
|
self._content_consumed = True
|
|
|
|
gen = generate()
|
|
|
|
if decode_unicode:
|
|
gen = stream_decode_response_unicode(gen, self)
|
|
|
|
return gen
|
|
|
|
def iter_lines(self, chunk_size=ITER_CHUNK_SIZE, decode_unicode=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.
|
|
"""
|
|
|
|
pending = None
|
|
|
|
for chunk in self.iter_content(chunk_size=chunk_size, decode_unicode=decode_unicode):
|
|
|
|
if pending is not None:
|
|
chunk = pending + chunk
|
|
lines = chunk.splitlines()
|
|
|
|
if lines and lines[-1] and chunk and lines[-1][-1] == chunk[-1]:
|
|
pending = lines.pop()
|
|
else:
|
|
pending = None
|
|
|
|
for line in lines:
|
|
yield line
|
|
|
|
if pending is not None:
|
|
yield pending
|
|
|
|
@property
|
|
def content(self):
|
|
"""Content of the response, in bytes."""
|
|
|
|
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.status_code == 0:
|
|
self._content = None
|
|
else:
|
|
self._content = bytes().join(self.iter_content(CONTENT_CHUNK_SIZE)) or bytes()
|
|
|
|
except AttributeError:
|
|
self._content = None
|
|
|
|
self._content_consumed = True
|
|
# don't need to release the connection; that's been handled by urllib3
|
|
# since we exhausted the data.
|
|
return self._content
|
|
|
|
@property
|
|
def text(self):
|
|
"""Content of the response, in unicode.
|
|
|
|
If Response.encoding is None, encoding will be guessed using
|
|
``chardet``.
|
|
|
|
The encoding of the response content is determined based solely on HTTP
|
|
headers, following RFC 2616 to the letter. If you can take advantage of
|
|
non-HTTP knowledge to make a better guess at the encoding, you should
|
|
set ``r.encoding`` appropriately before accessing this property.
|
|
"""
|
|
|
|
# Try charset from content-type
|
|
content = None
|
|
encoding = self.encoding
|
|
|
|
if not self.content:
|
|
return str('')
|
|
|
|
# Fallback to auto-detected encoding.
|
|
if self.encoding is None:
|
|
encoding = self.apparent_encoding
|
|
|
|
# Decode unicode from given encoding.
|
|
try:
|
|
content = str(self.content, encoding, errors='replace')
|
|
except (LookupError, TypeError):
|
|
# A LookupError is raised if the encoding was not found which could
|
|
# indicate a misspelling or similar mistake.
|
|
#
|
|
# A TypeError can be raised if encoding is None
|
|
#
|
|
# So we try blindly encoding.
|
|
content = str(self.content, errors='replace')
|
|
|
|
return content
|
|
|
|
def json(self, **kwargs):
|
|
"""Returns the json-encoded content of a response, if any.
|
|
|
|
:param \*\*kwargs: Optional arguments that ``json.loads`` takes.
|
|
"""
|
|
|
|
if not self.encoding and len(self.content) > 3:
|
|
# No encoding set. JSON RFC 4627 section 3 states we should expect
|
|
# UTF-8, -16 or -32. Detect which one to use; If the detection or
|
|
# decoding fails, fall back to `self.text` (using chardet to make
|
|
# a best guess).
|
|
encoding = guess_json_utf(self.content)
|
|
if encoding is not None:
|
|
try:
|
|
return json.loads(self.content.decode(encoding), **kwargs)
|
|
except UnicodeDecodeError:
|
|
# Wrong UTF codec detected; usually because it's not UTF-8
|
|
# but some other 8-bit codec. This is an RFC violation,
|
|
# and the server didn't bother to tell us what codec *was*
|
|
# used.
|
|
pass
|
|
return json.loads(self.text, **kwargs)
|
|
|
|
@property
|
|
def links(self):
|
|
"""Returns the parsed header links of the response, if any."""
|
|
|
|
header = self.headers.get('link')
|
|
|
|
# l = MultiDict()
|
|
l = {}
|
|
|
|
if header:
|
|
links = parse_header_links(header)
|
|
|
|
for link in links:
|
|
key = link.get('rel') or link.get('url')
|
|
l[key] = link
|
|
|
|
return l
|
|
|
|
def raise_for_status(self):
|
|
"""Raises stored :class:`HTTPError`, if one occurred."""
|
|
|
|
http_error_msg = ''
|
|
|
|
if 400 <= self.status_code < 500:
|
|
http_error_msg = '%s Client Error: %s' % (self.status_code, self.reason)
|
|
|
|
elif 500 <= self.status_code < 600:
|
|
http_error_msg = '%s Server Error: %s' % (self.status_code, self.reason)
|
|
|
|
if http_error_msg:
|
|
raise HTTPError(http_error_msg, response=self)
|
|
|
|
def close(self):
|
|
"""Closes the underlying file descriptor and releases the connection
|
|
back to the pool.
|
|
|
|
*Note: Should not normally need to be called explicitly.*
|
|
"""
|
|
return self.raw.release_conn()
|