Blame - oauth2client/tools.py - platform/external/python/google-api-python-client

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Joe Gregorio	695fdc1	2011-01-16 16:46:55 -0500	[diff] [blame]	1	# Copyright (C) 2010 Google Inc.
				2	#
				3	# Licensed under the Apache License, Version 2.0 (the "License");
				4	# you may not use this file except in compliance with the License.
				5	# You may obtain a copy of the License at
				6	#
				7	# http://www.apache.org/licenses/LICENSE-2.0
				8	#
				9	# Unless required by applicable law or agreed to in writing, software
				10	# distributed under the License is distributed on an "AS IS" BASIS,
				11	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
				12	# See the License for the specific language governing permissions and
				13	# limitations under the License.
				14
				15	"""Command-line tools for authenticating via OAuth 2.0
				16
Joe Gregorio	7c22ab2	2011-02-16 15:32:39 -0500	[diff] [blame]	17	Do the OAuth 2.0 Web Server dance for a command line application. Stores the
				18	generated credentials in a common file that is used by other example apps in
				19	the same directory.
Joe Gregorio	695fdc1	2011-01-16 16:46:55 -0500	[diff] [blame]	20	"""
				21
				22	__author__ = 'jcgregorio@google.com (Joe Gregorio)'
Joe Gregorio	7c22ab2	2011-02-16 15:32:39 -0500	[diff] [blame]	23	__all__ = ['run']
Joe Gregorio	695fdc1	2011-01-16 16:46:55 -0500	[diff] [blame]	24
Joe Gregorio	695fdc1	2011-01-16 16:46:55 -0500	[diff] [blame]	25
Joe Gregorio	9e5fe4d	2011-03-10 09:33:47 -0500	[diff] [blame]	26	import BaseHTTPServer
				27	import gflags
				28	import logging
				29	import socket
				30	import sys
				31
				32	from optparse import OptionParser
Joe Gregorio	06d852b	2011-03-25 15:03:10 -0400	[diff] [blame^]	33	from client import FlowExchangeError
Joe Gregorio	9e5fe4d	2011-03-10 09:33:47 -0500	[diff] [blame]	34
				35	try:
				36	from urlparse import parse_qsl
				37	except ImportError:
				38	from cgi import parse_qsl
				39
				40
				41	FLAGS = gflags.FLAGS
				42
				43	gflags.DEFINE_boolean('auth_local_webserver', True,
				44	('Run a local web server to handle redirects during '
				45	'OAuth authorization.'))
				46
				47	gflags.DEFINE_string('auth_host_name', 'localhost',
				48	('Host name to use when running a local web server to '
				49	'handle redirects during OAuth authorization.'))
				50
				51	gflags.DEFINE_multi_int('auth_host_port', [8080, 8090],
				52	('Port to use when running a local web server to '
				53	'handle redirects during OAuth authorization.'))
				54
				55
				56	class ClientRedirectServer(BaseHTTPServer.HTTPServer):
				57	"""A server to handle OAuth 2.0 redirects back to localhost.
				58
				59	Waits for a single request and parses the query parameters
				60	into query_params and then stops serving.
				61	"""
				62	query_params = {}
				63
				64
				65	class ClientRedirectHandler(BaseHTTPServer.BaseHTTPRequestHandler):
				66	"""A handler for OAuth 2.0 redirects back to localhost.
				67
				68	Waits for a single request and parses the query parameters
				69	into the servers query_params and then stops serving.
				70	"""
				71
				72	def do_GET(s):
				73	"""Handle a GET request
				74
				75	Parses the query parameters and prints a message
				76	if the flow has completed. Note that we can't detect
				77	if an error occurred.
				78	"""
				79	s.send_response(200)
				80	s.send_header("Content-type", "text/html")
				81	s.end_headers()
				82	query = s.path.split('?', 1)[-1]
				83	query = dict(parse_qsl(query))
				84	s.server.query_params = query
				85	s.wfile.write("<html><head><title>Authentication Status</title></head>")
				86	s.wfile.write("<body><p>The authentication flow has completed.</p>")
				87	s.wfile.write("</body></html>")
				88
				89	def log_message(self, format, *args):
				90	"""Do not log messages to stdout while running as command line program."""
				91	pass
				92
				93
Joe Gregorio	deeb020	2011-02-15 14:49:57 -0500	[diff] [blame]	94	def run(flow, storage):
Joe Gregorio	695fdc1	2011-01-16 16:46:55 -0500	[diff] [blame]	95	"""Core code for a command-line application.
Joe Gregorio	fffa7d7	2011-02-18 17:20:39 -0500	[diff] [blame]	96
				97	Args:
				98	flow: Flow, an OAuth 2.0 Flow to step through.
				99	storage: Storage, a Storage to store the credential in.
				100
				101	Returns:
				102	Credentials, the obtained credential.
Joe Gregorio	695fdc1	2011-01-16 16:46:55 -0500	[diff] [blame]	103	"""
Joe Gregorio	9e5fe4d	2011-03-10 09:33:47 -0500	[diff] [blame]	104	if FLAGS.auth_local_webserver:
				105	success = False
				106	port_number = 0
				107	for port in FLAGS.auth_host_port:
				108	port_number = port
				109	try:
				110	httpd = BaseHTTPServer.HTTPServer((FLAGS.auth_host_name, port),
				111	ClientRedirectHandler)
				112	except socket.error, e:
				113	pass
				114	else:
				115	success = True
				116	break
				117	FLAGS.auth_local_webserver = success
				118
				119	if FLAGS.auth_local_webserver:
				120	oauth_callback = 'http://%s:%s/' % (FLAGS.auth_host_name, port_number)
				121	else:
				122	oauth_callback = 'oob'
				123	authorize_url = flow.step1_get_authorize_url(oauth_callback)
Joe Gregorio	695fdc1	2011-01-16 16:46:55 -0500	[diff] [blame]	124
				125	print 'Go to the following link in your browser:'
				126	print authorize_url
				127	print
				128
Joe Gregorio	9e5fe4d	2011-03-10 09:33:47 -0500	[diff] [blame]	129	if FLAGS.auth_local_webserver:
				130	httpd.handle_request()
				131	if 'error' in httpd.query_params:
				132	sys.exit('Authentication request was rejected.')
				133	if 'code' in httpd.query_params:
				134	code = httpd.query_params['code']
				135	else:
				136	accepted = 'n'
				137	while accepted.lower() == 'n':
				138	accepted = raw_input('Have you authorized me? (y/n) ')
				139	code = raw_input('What is the verification code? ').strip()
Joe Gregorio	695fdc1	2011-01-16 16:46:55 -0500	[diff] [blame]	140
Joe Gregorio	fffa7d7	2011-02-18 17:20:39 -0500	[diff] [blame]	141	try:
				142	credentials = flow.step2_exchange(code)
Joe Gregorio	06d852b	2011-03-25 15:03:10 -0400	[diff] [blame^]	143	except FlowExchangeError:
Joe Gregorio	fffa7d7	2011-02-18 17:20:39 -0500	[diff] [blame]	144	sys.exit('The authentication has failed.')
Joe Gregorio	695fdc1	2011-01-16 16:46:55 -0500	[diff] [blame]	145
Joe Gregorio	deeb020	2011-02-15 14:49:57 -0500	[diff] [blame]	146	storage.put(credentials)
				147	credentials.set_store(storage.put)
Joe Gregorio	9e5fe4d	2011-03-10 09:33:47 -0500	[diff] [blame]	148	print "You have successfully authenticated."
Joe Gregorio	deeb020	2011-02-15 14:49:57 -0500	[diff] [blame]	149
				150	return credentials