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Unified Diff: third_party/gsutil/third_party/oauth2client/oauth2client/tools.py

Issue 1377933002: [catapult] - Copy Telemetry's gsutilz over to third_party. (Closed) Base URL: https://github.com/catapult-project/catapult.git@master
Patch Set: Rename to gsutil. Created 5 years, 3 months ago
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Index: third_party/gsutil/third_party/oauth2client/oauth2client/tools.py
diff --git a/third_party/gsutil/third_party/oauth2client/oauth2client/tools.py b/third_party/gsutil/third_party/oauth2client/oauth2client/tools.py
new file mode 100644
index 0000000000000000000000000000000000000000..2caa13420c5c0720e958995daf089ff180d16974
--- /dev/null
+++ b/third_party/gsutil/third_party/oauth2client/oauth2client/tools.py
@@ -0,0 +1,249 @@
+# 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.
+
+"""Command-line tools for authenticating via OAuth 2.0
+
+Do the OAuth 2.0 Web Server dance for a command line application. Stores the
+generated credentials in a common file that is used by other example apps in
+the same directory.
+"""
+
+from __future__ import print_function
+
+__author__ = 'jcgregorio@google.com (Joe Gregorio)'
+__all__ = ['argparser', 'run_flow', 'run', 'message_if_missing']
+
+import logging
+import socket
+import sys
+
+from six.moves import BaseHTTPServer
+from six.moves import urllib
+from six.moves import input
+
+from oauth2client import client
+from oauth2client import util
+
+
+_CLIENT_SECRETS_MESSAGE = """WARNING: Please configure OAuth 2.0
+
+To make this sample run you will need to populate the client_secrets.json file
+found at:
+
+ %s
+
+with information from the APIs Console <https://code.google.com/apis/console>.
+
+"""
+
+def _CreateArgumentParser():
+ try:
+ import argparse
+ except ImportError:
+ return None
+ parser = argparse.ArgumentParser(add_help=False)
+ parser.add_argument('--auth_host_name', default='localhost',
+ help='Hostname when running a local web server.')
+ parser.add_argument('--noauth_local_webserver', action='store_true',
+ default=False, help='Do not run a local web server.')
+ parser.add_argument('--auth_host_port', default=[8080, 8090], type=int,
+ nargs='*', help='Port web server should listen on.')
+ parser.add_argument('--logging_level', default='ERROR',
+ choices=['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL'],
+ help='Set the logging level of detail.')
+ return parser
+
+# argparser is an ArgumentParser that contains command-line options expected
+# by tools.run(). Pass it in as part of the 'parents' argument to your own
+# ArgumentParser.
+argparser = _CreateArgumentParser()
+
+
+class ClientRedirectServer(BaseHTTPServer.HTTPServer):
+ """A server to handle OAuth 2.0 redirects back to localhost.
+
+ Waits for a single request and parses the query parameters
+ into query_params and then stops serving.
+ """
+ query_params = {}
+
+
+class ClientRedirectHandler(BaseHTTPServer.BaseHTTPRequestHandler):
+ """A handler for OAuth 2.0 redirects back to localhost.
+
+ Waits for a single request and parses the query parameters
+ into the servers query_params and then stops serving.
+ """
+
+ def do_GET(self):
+ """Handle a GET request.
+
+ Parses the query parameters and prints a message
+ if the flow has completed. Note that we can't detect
+ if an error occurred.
+ """
+ self.send_response(200)
+ self.send_header("Content-type", "text/html")
+ self.end_headers()
+ query = self.path.split('?', 1)[-1]
+ query = dict(urllib.parse.parse_qsl(query))
+ self.server.query_params = query
+ self.wfile.write(b"<html><head><title>Authentication Status</title></head>")
+ self.wfile.write(b"<body><p>The authentication flow has completed.</p>")
+ self.wfile.write(b"</body></html>")
+
+ def log_message(self, format, *args):
+ """Do not log messages to stdout while running as command line program."""
+
+
+@util.positional(3)
+def run_flow(flow, storage, flags, 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.
+
+
+
+
+ The tools module defines an ``ArgumentParser`` the already contains the flag
+ definitions that ``run()`` requires. You can pass that ``ArgumentParser`` to your
+ ``ArgumentParser`` constructor::
+
+ parser = argparse.ArgumentParser(description=__doc__,
+ formatter_class=argparse.RawDescriptionHelpFormatter,
+ parents=[tools.argparser])
+ flags = parser.parse_args(argv)
+
+ Args:
+ flow: Flow, an OAuth 2.0 Flow to step through.
+ storage: Storage, a ``Storage`` to store the credential in.
+ flags: ``argparse.Namespace``, The command-line flags. This is the
+ object returned from calling ``parse_args()`` on
+ ``argparse.ArgumentParser`` as described above.
+ http: An instance of ``httplib2.Http.request`` or something that
+ acts like it.
+
+ Returns:
+ Credentials, the obtained credential.
+ """
+ logging.getLogger().setLevel(getattr(logging, flags.logging_level))
+ if not flags.noauth_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:
+ pass
+ else:
+ success = True
+ break
+ flags.noauth_local_webserver = not 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 not flags.noauth_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 not flags.noauth_local_webserver:
+ import webbrowser
+ 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 this')
+ print('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 not flags.noauth_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
+
+
+def message_if_missing(filename):
+ """Helpful message to display if the CLIENT_SECRETS file is missing."""
+
+ return _CLIENT_SECRETS_MESSAGE % filename
+
+try:
+ from oauth2client.old_run import run
+ from oauth2client.old_run import FLAGS
+except ImportError:
+ def run(*args, **kwargs):
+ raise NotImplementedError(
+ 'The gflags library must be installed to use tools.run(). '
+ 'Please install gflags or preferrably switch to using '
+ 'tools.run_flow().')

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