Revert of Upgrade 3rd packages

third_party/oauth2client/devshell.py

-# Copyright 2015 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.
-
-"""OAuth 2.0 utitilies for Google Developer Shell environment."""
-
-import json
-import os
-
-from . import client
-
-
-DEVSHELL_ENV = 'DEVSHELL_CLIENT_PORT'
-
-
-class Error(Exception):
-  """Errors for this module."""
-  pass
-
-
-class CommunicationError(Error):
-  """Errors for communication with the Developer Shell server."""
-
-
-class NoDevshellServer(Error):
-  """Error when no Developer Shell server can be contacted."""
-
-
-# The request for credential information to the Developer Shell client socket is
-# always an empty PBLite-formatted JSON object, so just define it as a constant.
-CREDENTIAL_INFO_REQUEST_JSON = '[]'
-
-
-class CredentialInfoResponse(object):
-  """Credential information response from Developer Shell server.
-
-  The credential information response from Developer Shell socket is a
-  PBLite-formatted JSON array with fields encoded by their index in the array:
-  * Index 0 - user email
-  * Index 1 - default project ID. None if the project context is not known.
-  * Index 2 - OAuth2 access token. None if there is no valid auth context.
-  """
-
-  def __init__(self, json_string):
-    """Initialize the response data from JSON PBLite array."""
-    pbl = json.loads(json_string)
-    if not isinstance(pbl, list):
-      raise ValueError('Not a list: ' + str(pbl))
-    pbl_len = len(pbl)
-    self.user_email = pbl[0] if pbl_len > 0 else None
-    self.project_id = pbl[1] if pbl_len > 1 else None
-    self.access_token = pbl[2] if pbl_len > 2 else None
-
-
-def _SendRecv():
-  """Communicate with the Developer Shell server socket."""
-
-  port = int(os.getenv(DEVSHELL_ENV, 0))
-  if port == 0:
-    raise NoDevshellServer()
-
-  import socket
-
-  sock = socket.socket()
-  sock.connect(('localhost', port))
-
-  data = CREDENTIAL_INFO_REQUEST_JSON
-  msg = '%s\n%s' % (len(data), data)
-  sock.sendall(msg.encode())
-
-  header = sock.recv(6).decode()
-  if '\n' not in header:
-    raise CommunicationError('saw no newline in the first 6 bytes')
-  len_str, json_str = header.split('\n', 1)
-  to_read = int(len_str) - len(json_str)
-  if to_read > 0:
-    json_str += sock.recv(to_read, socket.MSG_WAITALL).decode()
-
-  return CredentialInfoResponse(json_str)
-
-
-class DevshellCredentials(client.GoogleCredentials):
-  """Credentials object for Google Developer Shell environment.
-
-  This object will allow a Google Developer Shell session to identify its user
-  to Google and other OAuth 2.0 servers that can verify assertions. It can be
-  used for the purpose of accessing data stored under the user account.
-
-  This credential does not require a flow to instantiate because it represents
-  a two legged flow, and therefore has all of the required information to
-  generate and refresh its own access tokens.
-  """
-
-  def __init__(self, user_agent=None):
-    super(DevshellCredentials, self).__init__(
-        None,  # access_token, initialized below
-        None,  # client_id
-        None,  # client_secret
-        None,  # refresh_token
-        None,  # token_expiry
-        None,  # token_uri
-        user_agent)
-    self._refresh(None)
-
-  def _refresh(self, http_request):
-    self.devshell_response = _SendRecv()
-    self.access_token = self.devshell_response.access_token
-
-  @property
-  def user_email(self):
-    return self.devshell_response.user_email
-
-  @property
-  def project_id(self):
-    return self.devshell_response.project_id
-
-  @classmethod
-  def from_json(cls, json_data):
-    raise NotImplementedError(
-        'Cannot load Developer Shell credentials from JSON.')
-
-  @property
-  def serialization_data(self):
-    raise NotImplementedError(
-        'Cannot serialize Developer Shell credentials.')