mirror of
https://github.com/evilhero/mylar
synced 2024-12-23 16:22:45 +00:00
482 lines
17 KiB
Python
Executable file
482 lines
17 KiB
Python
Executable file
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
Compatibility code to be able to use `cookielib.CookieJar` with requests.
|
|
|
|
requests.utils imports from here, so be careful with imports.
|
|
"""
|
|
|
|
import copy
|
|
import time
|
|
import collections
|
|
from .compat import cookielib, urlparse, urlunparse, Morsel
|
|
|
|
try:
|
|
import threading
|
|
# grr, pyflakes: this fixes "redefinition of unused 'threading'"
|
|
threading
|
|
except ImportError:
|
|
import dummy_threading as threading
|
|
|
|
|
|
class MockRequest(object):
|
|
"""Wraps a `requests.Request` to mimic a `urllib2.Request`.
|
|
|
|
The code in `cookielib.CookieJar` expects this interface in order to correctly
|
|
manage cookie policies, i.e., determine whether a cookie can be set, given the
|
|
domains of the request and the cookie.
|
|
|
|
The original request object is read-only. The client is responsible for collecting
|
|
the new headers via `get_new_headers()` and interpreting them appropriately. You
|
|
probably want `get_cookie_header`, defined below.
|
|
"""
|
|
|
|
def __init__(self, request):
|
|
self._r = request
|
|
self._new_headers = {}
|
|
self.type = urlparse(self._r.url).scheme
|
|
|
|
def get_type(self):
|
|
return self.type
|
|
|
|
def get_host(self):
|
|
return urlparse(self._r.url).netloc
|
|
|
|
def get_origin_req_host(self):
|
|
return self.get_host()
|
|
|
|
def get_full_url(self):
|
|
# Only return the response's URL if the user hadn't set the Host
|
|
# header
|
|
if not self._r.headers.get('Host'):
|
|
return self._r.url
|
|
# If they did set it, retrieve it and reconstruct the expected domain
|
|
host = self._r.headers['Host']
|
|
parsed = urlparse(self._r.url)
|
|
# Reconstruct the URL as we expect it
|
|
return urlunparse([
|
|
parsed.scheme, host, parsed.path, parsed.params, parsed.query,
|
|
parsed.fragment
|
|
])
|
|
|
|
def is_unverifiable(self):
|
|
return True
|
|
|
|
def has_header(self, name):
|
|
return name in self._r.headers or name in self._new_headers
|
|
|
|
def get_header(self, name, default=None):
|
|
return self._r.headers.get(name, self._new_headers.get(name, default))
|
|
|
|
def add_header(self, key, val):
|
|
"""cookielib has no legitimate use for this method; add it back if you find one."""
|
|
raise NotImplementedError("Cookie headers should be added with add_unredirected_header()")
|
|
|
|
def add_unredirected_header(self, name, value):
|
|
self._new_headers[name] = value
|
|
|
|
def get_new_headers(self):
|
|
return self._new_headers
|
|
|
|
@property
|
|
def unverifiable(self):
|
|
return self.is_unverifiable()
|
|
|
|
@property
|
|
def origin_req_host(self):
|
|
return self.get_origin_req_host()
|
|
|
|
@property
|
|
def host(self):
|
|
return self.get_host()
|
|
|
|
|
|
class MockResponse(object):
|
|
"""Wraps a `httplib.HTTPMessage` to mimic a `urllib.addinfourl`.
|
|
|
|
...what? Basically, expose the parsed HTTP headers from the server response
|
|
the way `cookielib` expects to see them.
|
|
"""
|
|
|
|
def __init__(self, headers):
|
|
"""Make a MockResponse for `cookielib` to read.
|
|
|
|
:param headers: a httplib.HTTPMessage or analogous carrying the headers
|
|
"""
|
|
self._headers = headers
|
|
|
|
def info(self):
|
|
return self._headers
|
|
|
|
def getheaders(self, name):
|
|
self._headers.getheaders(name)
|
|
|
|
|
|
def extract_cookies_to_jar(jar, request, response):
|
|
"""Extract the cookies from the response into a CookieJar.
|
|
|
|
:param jar: cookielib.CookieJar (not necessarily a RequestsCookieJar)
|
|
:param request: our own requests.Request object
|
|
:param response: urllib3.HTTPResponse object
|
|
"""
|
|
if not (hasattr(response, '_original_response') and
|
|
response._original_response):
|
|
return
|
|
# the _original_response field is the wrapped httplib.HTTPResponse object,
|
|
req = MockRequest(request)
|
|
# pull out the HTTPMessage with the headers and put it in the mock:
|
|
res = MockResponse(response._original_response.msg)
|
|
jar.extract_cookies(res, req)
|
|
|
|
|
|
def get_cookie_header(jar, request):
|
|
"""Produce an appropriate Cookie header string to be sent with `request`, or None."""
|
|
r = MockRequest(request)
|
|
jar.add_cookie_header(r)
|
|
return r.get_new_headers().get('Cookie')
|
|
|
|
|
|
def remove_cookie_by_name(cookiejar, name, domain=None, path=None):
|
|
"""Unsets a cookie by name, by default over all domains and paths.
|
|
|
|
Wraps CookieJar.clear(), is O(n).
|
|
"""
|
|
clearables = []
|
|
for cookie in cookiejar:
|
|
if cookie.name == name:
|
|
if domain is None or domain == cookie.domain:
|
|
if path is None or path == cookie.path:
|
|
clearables.append((cookie.domain, cookie.path, cookie.name))
|
|
|
|
for domain, path, name in clearables:
|
|
cookiejar.clear(domain, path, name)
|
|
|
|
|
|
class CookieConflictError(RuntimeError):
|
|
"""There are two cookies that meet the criteria specified in the cookie jar.
|
|
Use .get and .set and include domain and path args in order to be more specific."""
|
|
|
|
|
|
class RequestsCookieJar(cookielib.CookieJar, collections.MutableMapping):
|
|
"""Compatibility class; is a cookielib.CookieJar, but exposes a dict
|
|
interface.
|
|
|
|
This is the CookieJar we create by default for requests and sessions that
|
|
don't specify one, since some clients may expect response.cookies and
|
|
session.cookies to support dict operations.
|
|
|
|
Requests does not use the dict interface internally; it's just for
|
|
compatibility with external client code. All requests code should work
|
|
out of the box with externally provided instances of ``CookieJar``, e.g.
|
|
``LWPCookieJar`` and ``FileCookieJar``.
|
|
|
|
Unlike a regular CookieJar, this class is pickleable.
|
|
|
|
.. warning:: dictionary operations that are normally O(1) may be O(n).
|
|
"""
|
|
def get(self, name, default=None, domain=None, path=None):
|
|
"""Dict-like get() that also supports optional domain and path args in
|
|
order to resolve naming collisions from using one cookie jar over
|
|
multiple domains.
|
|
|
|
.. warning:: operation is O(n), not O(1)."""
|
|
try:
|
|
return self._find_no_duplicates(name, domain, path)
|
|
except KeyError:
|
|
return default
|
|
|
|
def set(self, name, value, **kwargs):
|
|
"""Dict-like set() that also supports optional domain and path args in
|
|
order to resolve naming collisions from using one cookie jar over
|
|
multiple domains."""
|
|
# support client code that unsets cookies by assignment of a None value:
|
|
if value is None:
|
|
remove_cookie_by_name(self, name, domain=kwargs.get('domain'), path=kwargs.get('path'))
|
|
return
|
|
|
|
if isinstance(value, Morsel):
|
|
c = morsel_to_cookie(value)
|
|
else:
|
|
c = create_cookie(name, value, **kwargs)
|
|
self.set_cookie(c)
|
|
return c
|
|
|
|
def iterkeys(self):
|
|
"""Dict-like iterkeys() that returns an iterator of names of cookies
|
|
from the jar. See itervalues() and iteritems()."""
|
|
for cookie in iter(self):
|
|
yield cookie.name
|
|
|
|
def keys(self):
|
|
"""Dict-like keys() that returns a list of names of cookies from the
|
|
jar. See values() and items()."""
|
|
return list(self.iterkeys())
|
|
|
|
def itervalues(self):
|
|
"""Dict-like itervalues() that returns an iterator of values of cookies
|
|
from the jar. See iterkeys() and iteritems()."""
|
|
for cookie in iter(self):
|
|
yield cookie.value
|
|
|
|
def values(self):
|
|
"""Dict-like values() that returns a list of values of cookies from the
|
|
jar. See keys() and items()."""
|
|
return list(self.itervalues())
|
|
|
|
def iteritems(self):
|
|
"""Dict-like iteritems() that returns an iterator of name-value tuples
|
|
from the jar. See iterkeys() and itervalues()."""
|
|
for cookie in iter(self):
|
|
yield cookie.name, cookie.value
|
|
|
|
def items(self):
|
|
"""Dict-like items() that returns a list of name-value tuples from the
|
|
jar. See keys() and values(). Allows client-code to call
|
|
``dict(RequestsCookieJar)`` and get a vanilla python dict of key value
|
|
pairs."""
|
|
return list(self.iteritems())
|
|
|
|
def list_domains(self):
|
|
"""Utility method to list all the domains in the jar."""
|
|
domains = []
|
|
for cookie in iter(self):
|
|
if cookie.domain not in domains:
|
|
domains.append(cookie.domain)
|
|
return domains
|
|
|
|
def list_paths(self):
|
|
"""Utility method to list all the paths in the jar."""
|
|
paths = []
|
|
for cookie in iter(self):
|
|
if cookie.path not in paths:
|
|
paths.append(cookie.path)
|
|
return paths
|
|
|
|
def multiple_domains(self):
|
|
"""Returns True if there are multiple domains in the jar.
|
|
Returns False otherwise."""
|
|
domains = []
|
|
for cookie in iter(self):
|
|
if cookie.domain is not None and cookie.domain in domains:
|
|
return True
|
|
domains.append(cookie.domain)
|
|
return False # there is only one domain in jar
|
|
|
|
def get_dict(self, domain=None, path=None):
|
|
"""Takes as an argument an optional domain and path and returns a plain
|
|
old Python dict of name-value pairs of cookies that meet the
|
|
requirements."""
|
|
dictionary = {}
|
|
for cookie in iter(self):
|
|
if (domain is None or cookie.domain == domain) and (path is None
|
|
or cookie.path == path):
|
|
dictionary[cookie.name] = cookie.value
|
|
return dictionary
|
|
|
|
def __getitem__(self, name):
|
|
"""Dict-like __getitem__() for compatibility with client code. Throws
|
|
exception if there are more than one cookie with name. In that case,
|
|
use the more explicit get() method instead.
|
|
|
|
.. warning:: operation is O(n), not O(1)."""
|
|
|
|
return self._find_no_duplicates(name)
|
|
|
|
def __setitem__(self, name, value):
|
|
"""Dict-like __setitem__ for compatibility with client code. Throws
|
|
exception if there is already a cookie of that name in the jar. In that
|
|
case, use the more explicit set() method instead."""
|
|
|
|
self.set(name, value)
|
|
|
|
def __delitem__(self, name):
|
|
"""Deletes a cookie given a name. Wraps ``cookielib.CookieJar``'s
|
|
``remove_cookie_by_name()``."""
|
|
remove_cookie_by_name(self, name)
|
|
|
|
def set_cookie(self, cookie, *args, **kwargs):
|
|
if hasattr(cookie.value, 'startswith') and cookie.value.startswith('"') and cookie.value.endswith('"'):
|
|
cookie.value = cookie.value.replace('\\"', '')
|
|
return super(RequestsCookieJar, self).set_cookie(cookie, *args, **kwargs)
|
|
|
|
def update(self, other):
|
|
"""Updates this jar with cookies from another CookieJar or dict-like"""
|
|
if isinstance(other, cookielib.CookieJar):
|
|
for cookie in other:
|
|
self.set_cookie(copy.copy(cookie))
|
|
else:
|
|
super(RequestsCookieJar, self).update(other)
|
|
|
|
def _find(self, name, domain=None, path=None):
|
|
"""Requests uses this method internally to get cookie values. Takes as
|
|
args name and optional domain and path. Returns a cookie.value. If
|
|
there are conflicting cookies, _find arbitrarily chooses one. See
|
|
_find_no_duplicates if you want an exception thrown if there are
|
|
conflicting cookies."""
|
|
for cookie in iter(self):
|
|
if cookie.name == name:
|
|
if domain is None or cookie.domain == domain:
|
|
if path is None or cookie.path == path:
|
|
return cookie.value
|
|
|
|
raise KeyError('name=%r, domain=%r, path=%r' % (name, domain, path))
|
|
|
|
def _find_no_duplicates(self, name, domain=None, path=None):
|
|
"""Both ``__get_item__`` and ``get`` call this function: it's never
|
|
used elsewhere in Requests. Takes as args name and optional domain and
|
|
path. Returns a cookie.value. Throws KeyError if cookie is not found
|
|
and CookieConflictError if there are multiple cookies that match name
|
|
and optionally domain and path."""
|
|
toReturn = None
|
|
for cookie in iter(self):
|
|
if cookie.name == name:
|
|
if domain is None or cookie.domain == domain:
|
|
if path is None or cookie.path == path:
|
|
if toReturn is not None: # if there are multiple cookies that meet passed in criteria
|
|
raise CookieConflictError('There are multiple cookies with name, %r' % (name))
|
|
toReturn = cookie.value # we will eventually return this as long as no cookie conflict
|
|
|
|
if toReturn:
|
|
return toReturn
|
|
raise KeyError('name=%r, domain=%r, path=%r' % (name, domain, path))
|
|
|
|
def __getstate__(self):
|
|
"""Unlike a normal CookieJar, this class is pickleable."""
|
|
state = self.__dict__.copy()
|
|
# remove the unpickleable RLock object
|
|
state.pop('_cookies_lock')
|
|
return state
|
|
|
|
def __setstate__(self, state):
|
|
"""Unlike a normal CookieJar, this class is pickleable."""
|
|
self.__dict__.update(state)
|
|
if '_cookies_lock' not in self.__dict__:
|
|
self._cookies_lock = threading.RLock()
|
|
|
|
def copy(self):
|
|
"""Return a copy of this RequestsCookieJar."""
|
|
new_cj = RequestsCookieJar()
|
|
new_cj.update(self)
|
|
return new_cj
|
|
|
|
|
|
def _copy_cookie_jar(jar):
|
|
if jar is None:
|
|
return None
|
|
|
|
if hasattr(jar, 'copy'):
|
|
# We're dealing with an instane of RequestsCookieJar
|
|
return jar.copy()
|
|
# We're dealing with a generic CookieJar instance
|
|
new_jar = copy.copy(jar)
|
|
new_jar.clear()
|
|
for cookie in jar:
|
|
new_jar.set_cookie(copy.copy(cookie))
|
|
return new_jar
|
|
|
|
|
|
def create_cookie(name, value, **kwargs):
|
|
"""Make a cookie from underspecified parameters.
|
|
|
|
By default, the pair of `name` and `value` will be set for the domain ''
|
|
and sent on every request (this is sometimes called a "supercookie").
|
|
"""
|
|
result = dict(
|
|
version=0,
|
|
name=name,
|
|
value=value,
|
|
port=None,
|
|
domain='',
|
|
path='/',
|
|
secure=False,
|
|
expires=None,
|
|
discard=True,
|
|
comment=None,
|
|
comment_url=None,
|
|
rest={'HttpOnly': None},
|
|
rfc2109=False,)
|
|
|
|
badargs = set(kwargs) - set(result)
|
|
if badargs:
|
|
err = 'create_cookie() got unexpected keyword arguments: %s'
|
|
raise TypeError(err % list(badargs))
|
|
|
|
result.update(kwargs)
|
|
result['port_specified'] = bool(result['port'])
|
|
result['domain_specified'] = bool(result['domain'])
|
|
result['domain_initial_dot'] = result['domain'].startswith('.')
|
|
result['path_specified'] = bool(result['path'])
|
|
|
|
return cookielib.Cookie(**result)
|
|
|
|
|
|
def morsel_to_cookie(morsel):
|
|
"""Convert a Morsel object into a Cookie containing the one k/v pair."""
|
|
|
|
expires = None
|
|
if morsel['max-age']:
|
|
try:
|
|
expires = int(time.time() + int(morsel['max-age']))
|
|
except ValueError:
|
|
raise TypeError('max-age: %s must be integer' % morsel['max-age'])
|
|
elif morsel['expires']:
|
|
time_template = '%a, %d-%b-%Y %H:%M:%S GMT'
|
|
expires = int(time.mktime(
|
|
time.strptime(morsel['expires'], time_template)) - time.timezone)
|
|
return create_cookie(
|
|
comment=morsel['comment'],
|
|
comment_url=bool(morsel['comment']),
|
|
discard=False,
|
|
domain=morsel['domain'],
|
|
expires=expires,
|
|
name=morsel.key,
|
|
path=morsel['path'],
|
|
port=None,
|
|
rest={'HttpOnly': morsel['httponly']},
|
|
rfc2109=False,
|
|
secure=bool(morsel['secure']),
|
|
value=morsel.value,
|
|
version=morsel['version'] or 0,
|
|
)
|
|
|
|
|
|
def cookiejar_from_dict(cookie_dict, cookiejar=None, overwrite=True):
|
|
"""Returns a CookieJar from a key/value dictionary.
|
|
|
|
:param cookie_dict: Dict of key/values to insert into CookieJar.
|
|
:param cookiejar: (optional) A cookiejar to add the cookies to.
|
|
:param overwrite: (optional) If False, will not replace cookies
|
|
already in the jar with new ones.
|
|
"""
|
|
if cookiejar is None:
|
|
cookiejar = RequestsCookieJar()
|
|
|
|
if cookie_dict is not None:
|
|
names_from_jar = [cookie.name for cookie in cookiejar]
|
|
for name in cookie_dict:
|
|
if overwrite or (name not in names_from_jar):
|
|
cookiejar.set_cookie(create_cookie(name, cookie_dict[name]))
|
|
|
|
return cookiejar
|
|
|
|
|
|
def merge_cookies(cookiejar, cookies):
|
|
"""Add cookies to cookiejar and returns a merged CookieJar.
|
|
|
|
:param cookiejar: CookieJar object to add the cookies to.
|
|
:param cookies: Dictionary or CookieJar object to be added.
|
|
"""
|
|
if not isinstance(cookiejar, cookielib.CookieJar):
|
|
raise ValueError('You can only merge into CookieJar')
|
|
|
|
if isinstance(cookies, dict):
|
|
cookiejar = cookiejar_from_dict(
|
|
cookies, cookiejar=cookiejar, overwrite=False)
|
|
elif isinstance(cookies, cookielib.CookieJar):
|
|
try:
|
|
cookiejar.update(cookies)
|
|
except AttributeError:
|
|
for cookie_in_jar in cookies:
|
|
cookiejar.set_cookie(cookie_in_jar)
|
|
|
|
return cookiejar
|