You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
143 lines
4.3 KiB
143 lines
4.3 KiB
# -*- coding: utf-8 -*-
|
|
"""
|
|
|
|
requests_toolbelt.auth.handler
|
|
==============================
|
|
|
|
This holds all of the implementation details of the Authentication Handler.
|
|
|
|
"""
|
|
|
|
from requests.auth import AuthBase, HTTPBasicAuth
|
|
from requests.compat import urlparse, urlunparse
|
|
|
|
|
|
class AuthHandler(AuthBase):
|
|
|
|
"""
|
|
|
|
The ``AuthHandler`` object takes a dictionary of domains paired with
|
|
authentication strategies and will use this to determine which credentials
|
|
to use when making a request. For example, you could do the following:
|
|
|
|
.. code-block:: python
|
|
|
|
from requests import HTTPDigestAuth
|
|
from requests_toolbelt.auth.handler import AuthHandler
|
|
|
|
import requests
|
|
|
|
auth = AuthHandler({
|
|
'https://api.github.com': ('sigmavirus24', 'fakepassword'),
|
|
'https://example.com': HTTPDigestAuth('username', 'password')
|
|
})
|
|
|
|
r = requests.get('https://api.github.com/user', auth=auth)
|
|
# => <Response [200]>
|
|
r = requests.get('https://example.com/some/path', auth=auth)
|
|
# => <Response [200]>
|
|
|
|
s = requests.Session()
|
|
s.auth = auth
|
|
r = s.get('https://api.github.com/user')
|
|
# => <Response [200]>
|
|
|
|
.. warning::
|
|
|
|
:class:`requests.auth.HTTPDigestAuth` is not yet thread-safe. If you
|
|
use :class:`AuthHandler` across multiple threads you should
|
|
instantiate a new AuthHandler for each thread with a new
|
|
HTTPDigestAuth instance for each thread.
|
|
|
|
"""
|
|
|
|
def __init__(self, strategies):
|
|
self.strategies = dict(strategies)
|
|
self._make_uniform()
|
|
|
|
def __call__(self, request):
|
|
auth = self.get_strategy_for(request.url)
|
|
return auth(request)
|
|
|
|
def __repr__(self):
|
|
return '<AuthHandler({0!r})>'.format(self.strategies)
|
|
|
|
def _make_uniform(self):
|
|
existing_strategies = list(self.strategies.items())
|
|
self.strategies = {}
|
|
|
|
for (k, v) in existing_strategies:
|
|
self.add_strategy(k, v)
|
|
|
|
@staticmethod
|
|
def _key_from_url(url):
|
|
parsed = urlparse(url)
|
|
return urlunparse((parsed.scheme.lower(),
|
|
parsed.netloc.lower(),
|
|
'', '', '', ''))
|
|
|
|
def add_strategy(self, domain, strategy):
|
|
"""Add a new domain and authentication strategy.
|
|
|
|
:param str domain: The domain you wish to match against. For example:
|
|
``'https://api.github.com'``
|
|
:param str strategy: The authentication strategy you wish to use for
|
|
that domain. For example: ``('username', 'password')`` or
|
|
``requests.HTTPDigestAuth('username', 'password')``
|
|
|
|
.. code-block:: python
|
|
|
|
a = AuthHandler({})
|
|
a.add_strategy('https://api.github.com', ('username', 'password'))
|
|
|
|
"""
|
|
# Turn tuples into Basic Authentication objects
|
|
if isinstance(strategy, tuple):
|
|
strategy = HTTPBasicAuth(*strategy)
|
|
|
|
key = self._key_from_url(domain)
|
|
self.strategies[key] = strategy
|
|
|
|
def get_strategy_for(self, url):
|
|
"""Retrieve the authentication strategy for a specified URL.
|
|
|
|
:param str url: The full URL you will be making a request against. For
|
|
example, ``'https://api.github.com/user'``
|
|
:returns: Callable that adds authentication to a request.
|
|
|
|
.. code-block:: python
|
|
|
|
import requests
|
|
a = AuthHandler({'example.com', ('foo', 'bar')})
|
|
strategy = a.get_strategy_for('http://example.com/example')
|
|
assert isinstance(strategy, requests.auth.HTTPBasicAuth)
|
|
|
|
"""
|
|
key = self._key_from_url(url)
|
|
return self.strategies.get(key, NullAuthStrategy())
|
|
|
|
def remove_strategy(self, domain):
|
|
"""Remove the domain and strategy from the collection of strategies.
|
|
|
|
:param str domain: The domain you wish remove. For example,
|
|
``'https://api.github.com'``.
|
|
|
|
.. code-block:: python
|
|
|
|
a = AuthHandler({'example.com', ('foo', 'bar')})
|
|
a.remove_strategy('example.com')
|
|
assert a.strategies == {}
|
|
|
|
"""
|
|
key = self._key_from_url(domain)
|
|
if key in self.strategies:
|
|
del self.strategies[key]
|
|
|
|
|
|
class NullAuthStrategy(AuthBase):
|
|
def __repr__(self):
|
|
return '<NullAuthStrategy>'
|
|
|
|
def __call__(self, r):
|
|
return r
|