65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
# Copyright 2016 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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"""Dictionary storage for OAuth2 Credentials."""
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from oauth2client import client
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class DictionaryStorage(client.Storage):
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"""Store and retrieve credentials to and from a dictionary-like object.
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Args:
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dictionary: A dictionary or dictionary-like object.
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key: A string or other hashable. The credentials will be stored in
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``dictionary[key]``.
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lock: An optional threading.Lock-like object. The lock will be
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acquired before anything is written or read from the
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dictionary.
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"""
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def __init__(self, dictionary, key, lock=None):
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"""Construct a DictionaryStorage instance."""
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super(DictionaryStorage, self).__init__(lock=lock)
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self._dictionary = dictionary
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self._key = key
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def locked_get(self):
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"""Retrieve the credentials from the dictionary, if they exist.
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Returns: A :class:`oauth2client.client.OAuth2Credentials` instance.
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"""
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serialized = self._dictionary.get(self._key)
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if serialized is None:
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return None
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credentials = client.OAuth2Credentials.from_json(serialized)
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credentials.set_store(self)
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return credentials
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def locked_put(self, credentials):
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"""Save the credentials to the dictionary.
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Args:
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credentials: A :class:`oauth2client.client.OAuth2Credentials`
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instance.
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"""
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serialized = credentials.to_json()
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self._dictionary[self._key] = serialized
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def locked_delete(self):
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"""Remove the credentials from the dictionary, if they exist."""
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self._dictionary.pop(self._key, None)
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