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#!/usr/bin/env python

#

# 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.

#

"""Starting template for Google App Engine applications.

Use this project as a starting point if you are just beginning to build a Google

App Engine project. Remember to download the OAuth 2.0 client secrets which can

be obtained from the Developer Console <https://code.google.com/apis/console/>

and save them as 'client_secrets.json' in the project directory.

"""

__author__ = 'jcgregorio@google.com (Joe Gregorio)'

import httplib2

import logging

import os

import pickle

from googleapiclient import discovery

from oauth2client import client

from oauth2client.contrib import appengine

from google.appengine.api import memcache

import webapp2

import jinja2

JINJA_ENVIRONMENT = jinja2.Environment(

loader=jinja2.FileSystemLoader(os.path.dirname(__file__)),

autoescape=True,

extensions=['jinja2.ext.autoescape'])

# CLIENT_SECRETS, name of a file containing the OAuth 2.0 information for this

# application, including client_id and client_secret, which are found

# on the API Access tab on the Google APIs

# Console <http://code.google.com/apis/console>

CLIENT_SECRETS = os.path.join(os.path.dirname(__file__), 'client_secrets.json')

# Helpful message to display in the browser if the CLIENT_SECRETS file

# is missing.

MISSING_CLIENT_SECRETS_MESSAGE = """

<h1>Warning: Please configure OAuth 2.0</h1>

<p>

To make this sample run you will need to populate the client_secrets.json file

found at:

</p>

<p>

<code>%s</code>.

</p>

<p>with information found on the <a

href="https://code.google.com/apis/console">APIs Console</a>.

</p>

""" % CLIENT_SECRETS

http = httplib2.Http(memcache)

service = discovery.build("plus", "v1", http=http)

decorator = appengine.oauth2decorator_from_clientsecrets(

CLIENT_SECRETS,

scope='https://www.googleapis.com/auth/plus.me',

message=MISSING_CLIENT_SECRETS_MESSAGE)

class MainHandler(webapp2.RequestHandler):

@decorator.oauth_aware

def get(self):

variables = {

'url': decorator.authorize_url(),

'has_credentials': decorator.has_credentials()

}

template = JINJA_ENVIRONMENT.get_template('grant.html')

self.response.write(template.render(variables))

class AboutHandler(webapp2.RequestHandler):

@decorator.oauth_required

def get(self):

try:

http = decorator.http()

user = service.people().get(userId='me').execute(http=http)

text = 'Hello, %s!' % user['displayName']

template = JINJA_ENVIRONMENT.get_template('welcome.html')

self.response.write(template.render({'text': text }))

except client.AccessTokenRefreshError:

self.redirect('/')

app = webapp2.WSGIApplication(

[

('/', MainHandler),

('/about', AboutHandler),

(decorator.callback_path, decorator.callback_handler()),

],

debug=True)