108 lines
4 KiB
Python
108 lines
4 KiB
Python
# Copyright 2020 Google LLC
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
"""OAuth 2.0 Async Credentials.
|
|
|
|
This module provides credentials based on OAuth 2.0 access and refresh tokens.
|
|
These credentials usually access resources on behalf of a user (resource
|
|
owner).
|
|
|
|
Specifically, this is intended to use access tokens acquired using the
|
|
`Authorization Code grant`_ and can refresh those tokens using a
|
|
optional `refresh token`_.
|
|
|
|
Obtaining the initial access and refresh token is outside of the scope of this
|
|
module. Consult `rfc6749 section 4.1`_ for complete details on the
|
|
Authorization Code grant flow.
|
|
|
|
.. _Authorization Code grant: https://tools.ietf.org/html/rfc6749#section-1.3.1
|
|
.. _refresh token: https://tools.ietf.org/html/rfc6749#section-6
|
|
.. _rfc6749 section 4.1: https://tools.ietf.org/html/rfc6749#section-4.1
|
|
"""
|
|
|
|
from google.auth import _credentials_async as credentials
|
|
from google.auth import _helpers
|
|
from google.auth import exceptions
|
|
from google.oauth2 import _client_async as _client
|
|
from google.oauth2 import credentials as oauth2_credentials
|
|
|
|
|
|
class Credentials(oauth2_credentials.Credentials):
|
|
"""Credentials using OAuth 2.0 access and refresh tokens.
|
|
|
|
The credentials are considered immutable. If you want to modify the
|
|
quota project, use :meth:`with_quota_project` or ::
|
|
|
|
credentials = credentials.with_quota_project('myproject-123)
|
|
"""
|
|
|
|
@_helpers.copy_docstring(credentials.Credentials)
|
|
async def refresh(self, request):
|
|
if (
|
|
self._refresh_token is None
|
|
or self._token_uri is None
|
|
or self._client_id is None
|
|
or self._client_secret is None
|
|
):
|
|
raise exceptions.RefreshError(
|
|
"The credentials do not contain the necessary fields need to "
|
|
"refresh the access token. You must specify refresh_token, "
|
|
"token_uri, client_id, and client_secret."
|
|
)
|
|
|
|
(
|
|
access_token,
|
|
refresh_token,
|
|
expiry,
|
|
grant_response,
|
|
) = await _client.refresh_grant(
|
|
request,
|
|
self._token_uri,
|
|
self._refresh_token,
|
|
self._client_id,
|
|
self._client_secret,
|
|
self._scopes,
|
|
)
|
|
|
|
self.token = access_token
|
|
self.expiry = expiry
|
|
self._refresh_token = refresh_token
|
|
self._id_token = grant_response.get("id_token")
|
|
|
|
if self._scopes and "scopes" in grant_response:
|
|
requested_scopes = frozenset(self._scopes)
|
|
granted_scopes = frozenset(grant_response["scopes"].split())
|
|
scopes_requested_but_not_granted = requested_scopes - granted_scopes
|
|
if scopes_requested_but_not_granted:
|
|
raise exceptions.RefreshError(
|
|
"Not all requested scopes were granted by the "
|
|
"authorization server, missing scopes {}.".format(
|
|
", ".join(scopes_requested_but_not_granted)
|
|
)
|
|
)
|
|
|
|
|
|
class UserAccessTokenCredentials(oauth2_credentials.UserAccessTokenCredentials):
|
|
"""Access token credentials for user account.
|
|
|
|
Obtain the access token for a given user account or the current active
|
|
user account with the ``gcloud auth print-access-token`` command.
|
|
|
|
Args:
|
|
account (Optional[str]): Account to get the access token for. If not
|
|
specified, the current active account will be used.
|
|
quota_project_id (Optional[str]): The project ID used for quota
|
|
and billing.
|
|
|
|
"""
|