[catapult] - Copy Telemetry's gsutilz over to third_party.

third_party/gsutil/third_party/oauth2client/oauth2client/old_run.py

Index: third_party/gsutil/third_party/oauth2client/oauth2client/old_run.py
diff --git a/third_party/gsutil/third_party/oauth2client/oauth2client/old_run.py b/third_party/gsutil/third_party/oauth2client/oauth2client/old_run.py
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index 0000000000000000000000000000000000000000..51db69b8e851ec40c7d8e5caffbf64992f69038a
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+++ b/third_party/gsutil/third_party/oauth2client/oauth2client/old_run.py
@@ -0,0 +1,161 @@
+# Copyright 2014 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.
+
+"""This module holds the old run() function which is deprecated, the
+tools.run_flow() function should be used in its place."""
+
+from __future__ import print_function
+
+import logging
+import socket
+import sys
+import webbrowser
+
+import gflags
+from six.moves import input
+
+from oauth2client import client
+from oauth2client import util
+from oauth2client.tools import ClientRedirectHandler
+from oauth2client.tools import ClientRedirectServer
+
+
+FLAGS = gflags.FLAGS
+
+gflags.DEFINE_boolean('auth_local_webserver', True,
+                      ('Run a local web server to handle redirects during '
+                       'OAuth authorization.'))
+
+gflags.DEFINE_string('auth_host_name', 'localhost',
+                     ('Host name to use when running a local web server to '
+                      'handle redirects during OAuth authorization.'))
+
+gflags.DEFINE_multi_int('auth_host_port', [8080, 8090],
+                        ('Port to use when running a local web server to '
+                         'handle redirects during OAuth authorization.'))
+
+
+@util.positional(2)
+def run(flow, storage, http=None):
+  """Core code for a command-line application.
+
+  The ``run()`` function is called from your application and runs
+  through all the steps to obtain credentials. It takes a ``Flow``
+  argument and attempts to open an authorization server page in the
+  user's default web browser. The server asks the user to grant your
+  application access to the user's data. If the user grants access,
+  the ``run()`` function returns new credentials. The new credentials
+  are also stored in the ``storage`` argument, which updates the file
+  associated with the ``Storage`` object.
+
+  It presumes it is run from a command-line application and supports the
+  following flags:
+
+    ``--auth_host_name`` (string, default: ``localhost``)
+       Host name to use when running a local web server to handle
+       redirects during OAuth authorization.
+
+    ``--auth_host_port`` (integer, default: ``[8080, 8090]``)
+       Port to use when running a local web server to handle redirects
+       during OAuth authorization. Repeat this option to specify a list
+       of values.
+
+    ``--[no]auth_local_webserver`` (boolean, default: ``True``)
+       Run a local web server to handle redirects during OAuth authorization.
+
+  Since it uses flags make sure to initialize the ``gflags`` module before
+  calling ``run()``.
+
+  Args:
+    flow: Flow, an OAuth 2.0 Flow to step through.
+    storage: Storage, a ``Storage`` to store the credential in.
+    http: An instance of ``httplib2.Http.request`` or something that acts
+        like it.
+
+  Returns:
+    Credentials, the obtained credential.
+  """
+  logging.warning('This function, oauth2client.tools.run(), and the use of '
+      'the gflags library are deprecated and will be removed in a future '
+      'version of the library.')
+  if FLAGS.auth_local_webserver:
+    success = False
+    port_number = 0
+    for port in FLAGS.auth_host_port:
+      port_number = port
+      try:
+        httpd = ClientRedirectServer((FLAGS.auth_host_name, port),
+                                     ClientRedirectHandler)
+      except socket.error as e:
+        pass
+      else:
+        success = True
+        break
+    FLAGS.auth_local_webserver = success
+    if not success:
+      print('Failed to start a local webserver listening on either port 8080')
+      print('or port 9090. Please check your firewall settings and locally')
+      print('running programs that may be blocking or using those ports.')
+      print()
+      print('Falling back to --noauth_local_webserver and continuing with')
+      print('authorization.')
+      print()
+
+  if FLAGS.auth_local_webserver:
+    oauth_callback = 'http://%s:%s/' % (FLAGS.auth_host_name, port_number)
+  else:
+    oauth_callback = client.OOB_CALLBACK_URN
+  flow.redirect_uri = oauth_callback
+  authorize_url = flow.step1_get_authorize_url()
+
+  if FLAGS.auth_local_webserver:
+    webbrowser.open(authorize_url, new=1, autoraise=True)
+    print('Your browser has been opened to visit:')
+    print()
+    print('    ' + authorize_url)
+    print()
+    print('If your browser is on a different machine then exit and re-run')
+    print('this application with the command-line parameter ')
+    print()
+    print('  --noauth_local_webserver')
+    print()
+  else:
+    print('Go to the following link in your browser:')
+    print()
+    print('    ' + authorize_url)
+    print()
+
+  code = None
+  if FLAGS.auth_local_webserver:
+    httpd.handle_request()
+    if 'error' in httpd.query_params:
+      sys.exit('Authentication request was rejected.')
+    if 'code' in httpd.query_params:
+      code = httpd.query_params['code']
+    else:
+      print('Failed to find "code" in the query parameters of the redirect.')
+      sys.exit('Try running with --noauth_local_webserver.')
+  else:
+    code = input('Enter verification code: ').strip()
+
+  try:
+    credential = flow.step2_exchange(code, http=http)
+  except client.FlowExchangeError as e:
+    sys.exit('Authentication has failed: %s' % e)
+
+  storage.put(credential)
+  credential.set_store(storage)
+  print('Authentication successful.')
+
+  return credential