93 lines
3.4 KiB
Python
93 lines
3.4 KiB
Python
#!/usr/bin/env python
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"""A simplistic Twitter viewer to demonstrate the use of TwitterMixin.
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To run this app, you must first register an application with Twitter:
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1) Go to https://dev.twitter.com/apps and create an application.
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Your application must have a callback URL registered with Twitter.
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It doesn't matter what it is, but it has to be there (Twitter won't
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let you use localhost in a registered callback URL, but that won't stop
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you from running this demo on localhost).
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2) Create a file called "secrets.cfg" and put your consumer key and
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secret (which Twitter gives you when you register an app) in it:
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twitter_consumer_key = 'asdf1234'
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twitter_consumer_secret = 'qwer5678'
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(you could also generate a random value for "cookie_secret" and put it
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in the same file, although it's not necessary to run this demo)
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3) Run this program and go to http://localhost:8888 (by default) in your
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browser.
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"""
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import logging
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from tornado.auth import TwitterMixin
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from tornado.escape import json_decode, json_encode
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from tornado.ioloop import IOLoop
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from tornado import gen
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from tornado.options import define, options, parse_command_line, parse_config_file
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from tornado.web import Application, RequestHandler, authenticated
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define('port', default=8888, help="port to listen on")
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define('config_file', default='secrets.cfg',
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help='filename for additional configuration')
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define('debug', default=False, group='application',
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help="run in debug mode (with automatic reloading)")
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# The following settings should probably be defined in secrets.cfg
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define('twitter_consumer_key', type=str, group='application')
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define('twitter_consumer_secret', type=str, group='application')
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define('cookie_secret', type=str, group='application',
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default='__TODO:_GENERATE_YOUR_OWN_RANDOM_VALUE__',
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help="signing key for secure cookies")
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class BaseHandler(RequestHandler):
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COOKIE_NAME = 'twitterdemo_user'
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def get_current_user(self):
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user_json = self.get_secure_cookie(self.COOKIE_NAME)
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if not user_json:
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return None
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return json_decode(user_json)
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class MainHandler(BaseHandler, TwitterMixin):
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@authenticated
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@gen.coroutine
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def get(self):
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timeline = yield self.twitter_request(
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'/statuses/home_timeline',
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access_token=self.current_user['access_token'])
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self.render('home.html', timeline=timeline)
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class LoginHandler(BaseHandler, TwitterMixin):
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@gen.coroutine
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def get(self):
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if self.get_argument('oauth_token', None):
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user = yield self.get_authenticated_user()
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self.set_secure_cookie(self.COOKIE_NAME, json_encode(user))
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self.redirect(self.get_argument('next', '/'))
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else:
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yield self.authorize_redirect(callback_uri=self.request.full_url())
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class LogoutHandler(BaseHandler):
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def get(self):
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self.clear_cookie(self.COOKIE_NAME)
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def main():
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parse_command_line(final=False)
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parse_config_file(options.config_file)
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app = Application(
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[
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('/', MainHandler),
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('/login', LoginHandler),
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('/logout', LogoutHandler),
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],
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login_url='/login',
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**options.group_dict('application'))
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app.listen(options.port)
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logging.info('Listening on http://localhost:%d' % options.port)
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IOLoop.instance().start()
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if __name__ == '__main__':
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main()
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