64 lines
2.5 KiB
Python
64 lines
2.5 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2019 Google Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Implementation of credentials that refreshes using the iamcredentials API."""
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from __future__ import absolute_import
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from __future__ import print_function
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from __future__ import division
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from __future__ import unicode_literals
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import datetime
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from oauth2client import client
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from gslib.iamcredentials_api import IamcredentailsApi
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class ImpersonationCredentials(client.OAuth2Credentials):
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_EXPIRY_FORMAT = '%Y-%m-%dT%H:%M:%SZ'
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def __init__(self, service_account_id, scopes, credentials, logger):
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self._service_account_id = service_account_id
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self.api = IamcredentailsApi(logger, credentials)
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response = self.api.GenerateAccessToken(service_account_id, scopes)
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self.access_token = response.accessToken
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self.token_expiry = self._ConvertExpiryTime(response.expireTime)
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super(ImpersonationCredentials, self).__init__(self.access_token,
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None,
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None,
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None,
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self.token_expiry,
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None,
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None,
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scopes=scopes)
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@property
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def service_account_id(self):
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return self._service_account_id
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def _refresh(self, http):
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# client.Oauth2Credentials converts scopes into a set, so we need to convert
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# back to a list before making the API request.
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response = self.api.GenerateAccessToken(self._service_account_id,
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list(self.scopes))
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self.access_token = response.accessToken
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self.token_expiry = self._ConvertExpiryTime(response.expireTime)
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def _ConvertExpiryTime(self, value):
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return datetime.datetime.strptime(value,
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ImpersonationCredentials._EXPIRY_FORMAT)
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