1from oauthlib.oauth2 import WebApplicationClient, InsecureTransportError
2from oauthlib.oauth2 import is_secure_transport
3from requests.auth import AuthBase
4
5
6class OAuth2(AuthBase):
7 """Adds proof of authorization (OAuth2 token) to the request."""
8
9 def __init__(self, client_id=None, client=None, token=None):
10 """Construct a new OAuth 2 authorization object.
11
12 :param client_id: Client id obtained during registration
13 :param client: :class:`oauthlib.oauth2.Client` to be used. Default is
14 WebApplicationClient which is useful for any
15 hosted application but not mobile or desktop.
16 :param token: Token dictionary, must include access_token
17 and token_type.
18 """
19 self._client = client or WebApplicationClient(client_id, token=token)
20 if token:
21 for k, v in token.items():
22 setattr(self._client, k, v)
23
24 def __call__(self, r):
25 """Append an OAuth 2 token to the request.
26
27 Note that currently HTTPS is required for all requests. There may be
28 a token type that allows for plain HTTP in the future and then this
29 should be updated to allow plain HTTP on a white list basis.
30 """
31 if not is_secure_transport(r.url):
32 raise InsecureTransportError()
33 r.url, r.headers, r.body = self._client.add_token(
34 r.url, http_method=r.method, body=r.body, headers=r.headers
35 )
36 return r