106 lines
3.4 KiB
Python
Executable File
106 lines
3.4 KiB
Python
Executable File
#!/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 asyncio
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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 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(
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"config_file", default="secrets.cfg", help="filename for additional configuration"
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)
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define(
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"debug",
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default=False,
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group="application",
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help="run in debug mode (with automatic reloading)",
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)
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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(
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"cookie_secret",
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type=str,
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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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)
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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_signed_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", access_token=self.current_user["access_token"]
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)
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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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del user["description"]
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self.set_signed_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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async 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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[("/", MainHandler), ("/login", LoginHandler), ("/logout", LogoutHandler)],
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login_url="/login",
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**options.group_dict("application")
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)
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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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await asyncio.Event().wait()
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if __name__ == "__main__":
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asyncio.run(main())
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