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Include oauthlib module

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JonnyWong16 2016-05-15 10:15:44 -07:00
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lib/oauthlib/oauth2/rfc6749/clients/web_application.py Normal file
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# -*- coding: utf-8 -*-
"""
oauthlib.oauth2.rfc6749
~~~~~~~~~~~~~~~~~~~~~~~
This module is an implementation of various logic needed
for consuming and providing OAuth 2.0 RFC6749.
"""
from __future__ import absolute_import, unicode_literals
from .base import Client
from ..parameters import prepare_grant_uri, prepare_token_request
from ..parameters import parse_authorization_code_response
from ..parameters import parse_token_response
class WebApplicationClient(Client):
"""A client utilizing the authorization code grant workflow.
A web application is a confidential client running on a web
server. Resource owners access the client via an HTML user
interface rendered in a user-agent on the device used by the
resource owner. The client credentials as well as any access
token issued to the client are stored on the web server and are
not exposed to or accessible by the resource owner.
The authorization code grant type is used to obtain both access
tokens and refresh tokens and is optimized for confidential clients.
As a redirection-based flow, the client must be capable of
interacting with the resource owner's user-agent (typically a web
browser) and capable of receiving incoming requests (via redirection)
from the authorization server.
"""
def __init__(self, client_id, code=None, **kwargs):
super(WebApplicationClient, self).__init__(client_id, **kwargs)
self.code = code
def prepare_request_uri(self, uri, redirect_uri=None, scope=None,
state=None, **kwargs):
"""Prepare the authorization code request URI
The client constructs the request URI by adding the following
parameters to the query component of the authorization endpoint URI
using the "application/x-www-form-urlencoded" format, per `Appendix B`_:
:param redirect_uri: OPTIONAL. The redirect URI must be an absolute URI
and it should have been registerd with the OAuth
provider prior to use. As described in `Section 3.1.2`_.
:param scope: OPTIONAL. The scope of the access request as described by
Section 3.3`_. These may be any string but are commonly
URIs or various categories such as ``videos`` or ``documents``.
:param state: RECOMMENDED. An opaque value used by the client to maintain
state between the request and callback. The authorization
server includes this value when redirecting the user-agent back
to the client. The parameter SHOULD be used for preventing
cross-site request forgery as described in `Section 10.12`_.
:param kwargs: Extra arguments to include in the request URI.
In addition to supplied parameters, OAuthLib will append the ``client_id``
that was provided in the constructor as well as the mandatory ``response_type``
argument, set to ``code``::
>>> from oauthlib.oauth2 import WebApplicationClient
>>> client = WebApplicationClient('your_id')
>>> client.prepare_request_uri('https://example.com')
'https://example.com?client_id=your_id&response_type=code'
>>> client.prepare_request_uri('https://example.com', redirect_uri='https://a.b/callback')
'https://example.com?client_id=your_id&response_type=code&redirect_uri=https%3A%2F%2Fa.b%2Fcallback'
>>> client.prepare_request_uri('https://example.com', scope=['profile', 'pictures'])
'https://example.com?client_id=your_id&response_type=code&scope=profile+pictures'
>>> client.prepare_request_uri('https://example.com', foo='bar')
'https://example.com?client_id=your_id&response_type=code&foo=bar'
.. _`Appendix B`: http://tools.ietf.org/html/rfc6749#appendix-B
.. _`Section 2.2`: http://tools.ietf.org/html/rfc6749#section-2.2
.. _`Section 3.1.2`: http://tools.ietf.org/html/rfc6749#section-3.1.2
.. _`Section 3.3`: http://tools.ietf.org/html/rfc6749#section-3.3
.. _`Section 10.12`: http://tools.ietf.org/html/rfc6749#section-10.12
"""
return prepare_grant_uri(uri, self.client_id, 'code',
redirect_uri=redirect_uri, scope=scope, state=state, **kwargs)
def prepare_request_body(self, client_id=None, code=None, body='',
redirect_uri=None, **kwargs):
"""Prepare the access token request body.
The client makes a request to the token endpoint by adding the
following parameters using the "application/x-www-form-urlencoded"
format in the HTTP request entity-body:
:param client_id: REQUIRED, if the client is not authenticating with the
authorization server as described in `Section 3.2.1`_.
:param code: REQUIRED. The authorization code received from the
authorization server.
:param redirect_uri: REQUIRED, if the "redirect_uri" parameter was included in the
authorization request as described in `Section 4.1.1`_, and their
values MUST be identical.
:param kwargs: Extra parameters to include in the token request.
In addition OAuthLib will add the ``grant_type`` parameter set to
``authorization_code``.
If the client type is confidential or the client was issued client
credentials (or assigned other authentication requirements), the
client MUST authenticate with the authorization server as described
in `Section 3.2.1`_::
>>> from oauthlib.oauth2 import WebApplicationClient
>>> client = WebApplicationClient('your_id')
>>> client.prepare_request_body(code='sh35ksdf09sf')
'grant_type=authorization_code&code=sh35ksdf09sf'
>>> client.prepare_request_body(code='sh35ksdf09sf', foo='bar')
'grant_type=authorization_code&code=sh35ksdf09sf&foo=bar'
.. _`Section 4.1.1`: http://tools.ietf.org/html/rfc6749#section-4.1.1
.. _`Section 3.2.1`: http://tools.ietf.org/html/rfc6749#section-3.2.1
"""
code = code or self.code
return prepare_token_request('authorization_code', code=code, body=body,
client_id=self.client_id, redirect_uri=redirect_uri, **kwargs)
def parse_request_uri_response(self, uri, state=None):
"""Parse the URI query for code and state.
If the resource owner grants the access request, the authorization
server issues an authorization code and delivers it to the client by
adding the following parameters to the query component of the
redirection URI using the "application/x-www-form-urlencoded" format:
:param uri: The callback URI that resulted from the user being redirected
back from the provider to you, the client.
:param state: The state provided in the authorization request.
**code**
The authorization code generated by the authorization server.
The authorization code MUST expire shortly after it is issued
to mitigate the risk of leaks. A maximum authorization code
lifetime of 10 minutes is RECOMMENDED. The client MUST NOT
use the authorization code more than once. If an authorization
code is used more than once, the authorization server MUST deny
the request and SHOULD revoke (when possible) all tokens
previously issued based on that authorization code.
The authorization code is bound to the client identifier and
redirection URI.
**state**
If the "state" parameter was present in the authorization request.
This method is mainly intended to enforce strict state checking with
the added benefit of easily extracting parameters from the URI::
>>> from oauthlib.oauth2 import WebApplicationClient
>>> client = WebApplicationClient('your_id')
>>> uri = 'https://example.com/callback?code=sdfkjh345&state=sfetw45'
>>> client.parse_request_uri_response(uri, state='sfetw45')
{'state': 'sfetw45', 'code': 'sdfkjh345'}
>>> client.parse_request_uri_response(uri, state='other')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "oauthlib/oauth2/rfc6749/__init__.py", line 357, in parse_request_uri_response
back from the provider to you, the client.
File "oauthlib/oauth2/rfc6749/parameters.py", line 153, in parse_authorization_code_response
raise MismatchingStateError()
oauthlib.oauth2.rfc6749.errors.MismatchingStateError
"""
response = parse_authorization_code_response(uri, state=state)
self._populate_attributes(response)
return response