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from oauthlib.oauth2 import WebApplicationClient, InsecureTransportError
from oauthlib.oauth2 import is_secure_transport
from requests.auth import AuthBase
class OAuth2(AuthBase):
"""Adds proof of authorization (OAuth2 token) to the request."""
def __init__(self, client_id=None, client=None, token=None):
"""Construct a new OAuth 2 authorization object.
:param client_id: Client id obtained during registration
:param client: :class:`oauthlib.oauth2.Client` to be used. Default is
WebApplicationClient which is useful for any
hosted application but not mobile or desktop.
:param token: Token dictionary, must include access_token
and token_type.
"""
self._client = client or WebApplicationClient(client_id, token=token)
if token:
for k, v in token.items():
setattr(self._client, k, v)
def __call__(self, r):
"""Append an OAuth 2 token to the request.
Note that currently HTTPS is required for all requests. There may be
a token type that allows for plain HTTP in the future and then this
should be updated to allow plain HTTP on a white list basis.
"""
if not is_secure_transport(r.url):
raise InsecureTransportError()
r.url, r.headers, r.body = self._client.add_token(
r.url, http_method=r.method, body=r.body, headers=r.headers
)
return r
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