examples/gae/extras/main.py
# -*- coding: utf-8 -*-
# main.py
import webapp2
from authomatic import Authomatic
from authomatic.adapters import Webapp2Adapter
from authomatic.extras import gae
authomatic = Authomatic(config=gae.ndb_config(), # Here goes the config.
secret='some random secret string',
report_errors=False)
# Create a simple request handler for the login procedure.
class Login(webapp2.RequestHandler):
# The handler must accept GET and POST http methods and
# Accept any HTTP method and catch the "provider_name" URL variable.
def any(self, provider_name):
session = gae.Webapp2Session(self, secret='abc')
# It all begins with login.
result = authomatic.login(Webapp2Adapter(self), # Framework adapter.
provider_name,
# Provider name extracted from url.
session=session,
session_saver=session.save)
# Do not write anything to the response if there is no result!
if result:
# If there is result, the login procedure is over and we can write
# to response.
self.response.write('<a href="..">Home</a>')
if result.error:
# Login procedure finished with an error.
self.response.write(
'<h2>Damn that error: {}</h2>'.format(result.error.message))
elif result.user:
# Hooray, we have the user!
# OAuth 2.0 and OAuth 1.0a provide only limited user data on login,
# We need to update the user to get more info.
result.user.update()
# Welcome the user.
self.response.write('<h1>Hi {}</h1>'.format(result.user.name))
self.response.write(
'<h2>Your id is: {}</h2>'.format(result.user.id))
self.response.write(
'<h2>Your email is: {}</h2>'.format(result.user.email))
# Seems like we're done, but there's more we can do...
# If there are credentials (only by AuthorizationProvider),
# we can _access user's protected resources.
if result.user.credentials:
# Each provider has it's specific API.
if result.provider.name == 'fb':
self.response.write(
'Your are logged in with Facebook,<br />')
# We will access the user's 5 most recent statuses.
url = 'https://graph.facebook.com/{}?fields=feed.limit(5).fields(message)'
url = url.format(result.user.id)
# Access user's protected resource.
response = result.provider.access(url)
if response.status == 200:
# Parse response.
statuses = response.data.get('feed').get('data')
error = response.data.get('error')
if error:
self.response.write(
'Damn that error: {}!'.format(error))
elif statuses:
self.response.write(
'and these are your 5 most recent statuses:<br /><br />')
for message in statuses:
text = message.get('message')
date = message.get('created_time')
self.response.write(
'<h3>{}</h3>'.format(text))
self.response.write(
'Posted on: {}<br /><br />'.format(date))
else:
self.response.write(
'Damn that unknown error!<br />')
self.response.write(
'Status: {}'.format(response.status))
if result.provider.name == 'tw':
self.response.write(
'Your are logged in with Twitter,<br />')
# We will get the user's 5 most recent tweets.
url = 'https://api.twitter.com/1.1/statuses/user_timeline.json'
# You can pass a dictionary of querystring parameters.
response = result.provider.access(url, {'count': 5})
# Parse response.
if response.status == 200:
if isinstance(response.data, list):
# Twitter returns the tweets as a JSON list.
self.response.write(
'and these are your 5 most recent tweets:')
for tweet in response.data:
text = tweet.get('text')
date = tweet.get('created_at')
self.response.write(
'<h3>{}</h3>'.format(text))
self.response.write(
'Tweeted on: {}'.format(date))
elif response.data.get('errors'):
self.response.write(
'Damn that error: {}!'.format(
response.data.get('errors')))
else:
self.response.write(
'Damn that unknown error!<br />')
self.response.write(
'Status: {}'.format(response.status))
# Create a home request handler just that you don't have to enter the urls
# manually.
class Home(webapp2.RequestHandler):
def get(self):
# Create links to the Login handler.
self.response.write(
'Login with <a href="login/fb">Facebook</a>.<br />')
self.response.write('Login with <a href="login/tw">Twitter</a>.<br />')
# Create OpenID form where the user can specify their claimed identifier.
# The library by default extracts the identifier from the "id"
# parameter.
self.response.write('''
<form action="login/oi">
<input type="text" name="id" value="me.yahoo.com" />
<input type="submit" value="Authenticate With OpenID">
</form>
''')
# Create GAEOpenID form
self.response.write('''
<form action="login/gae_oi">
<input type="text" name="id" value="me.yahoo.com" />
<input type="submit" value="Authenticate With GAEOpenID">
</form>
''')
# Create routes.
ROUTES = [webapp2.Route(r'/login/<:.*>', Login, handler_method='any'),
webapp2.Route(r'/', Home)]
# Instantiate the webapp2 WSGI application.
app = webapp2.WSGIApplication(ROUTES, debug=True)