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_pydrive.py
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_pydrive.py
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# Copyright 2022 Google Inc. All rights reserved.
#
# 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.
"""Import hook to allow credentials provided by Colab."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import imp
import logging
import os
import sys
class _PyDriveImportHook(object):
"""Patches PyDrive to allow credentials provided by Colab."""
env_var = 'DISABLE_COLAB_PYDRIVE_CREDENTIALS_HOOK'
def find_module(self, fullname, path=None):
if fullname != 'pydrive.auth':
return None
uses_auth_ephem = os.environ.get('USE_AUTH_EPHEM', '0') == '1'
if not uses_auth_ephem:
return None
self.module_info = imp.find_module(fullname.split('.')[-1], path)
return self
def load_module(self, name):
"""Loads PyDrive normally and runs pre-initialization code."""
previously_loaded = name in sys.modules
pydrive_auth_module = imp.load_module(name, *self.module_info)
if not previously_loaded:
try:
import httplib2 # pylint:disable=g-import-not-at-top
from oauth2client.contrib.gce import AppAssertionCredentials # pylint:disable=g-import-not-at-top
orig_local_webserver_auth = pydrive_auth_module.GoogleAuth.LocalWebserverAuth
# Capture the environment variable outside of the patched method since
# self will refer to a GoogleAuth object in these cases.
env_var = self.env_var
def PatchedLocalWebServerAuth(self, *args, **kwargs): # pylint:disable=invalid-name
if not os.environ.get(env_var, '') and isinstance(
self.credentials, AppAssertionCredentials):
self.credentials.refresh(httplib2.Http())
return
return orig_local_webserver_auth(self, *args, **kwargs)
pydrive_auth_module.GoogleAuth.LocalWebserverAuth = PatchedLocalWebServerAuth
except: # pylint: disable=bare-except
logging.exception('Error patching PyDrive')
return pydrive_auth_module
def _register_hook():
sys.meta_path = [_PyDriveImportHook()] + sys.meta_path