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#!/usr/bin/env python
# coding: utf-8
#
# Copyright 2010 Alexandre Fiori
# based on the original Tornado by Facebook
#
# 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.
import sys
import cyclone.auth
import cyclone.escape
import cyclone.web
from twisted.python import log
from twisted.internet import reactor
from pycket.session import SessionMixin
class Application(cyclone.web.Application):
def __init__(self):
handlers = [
(r"/", MainHandler),
(r"/auth/login", AuthHandler),
(r"/auth/logout", LogoutHandler),
]
settings = dict(
cookie_secret="32oETzKXQAGaYdkL5gEmGeJJFuYh7EQnp2XdTP1o/Vo=",
debug=True,
login_url="/auth/login",
logout_url="/auth/logout",
)
settings['pycket'] = {
'engine': 'redis',
'storage': {
'host': 'localhost',
'port': 6379,
'db_sessions': 10,
'db_notifications': 11
}
}
cyclone.web.Application.__init__(self, handlers, **settings)
class BaseHandler(cyclone.web.RequestHandler, SessionMixin):
def get_current_user(self):
user = self.session.get('user')
if not user:
return None
return user
class MainHandler(BaseHandler):
@cyclone.web.authenticated
def get(self):
name = cyclone.escape.xhtml_escape(self.current_user)
self.write("Hello, " + name)
self.write("<br><br><a href=\"/auth/logout\">Log out</a>")
class AuthHandler(BaseHandler, SessionMixin):
def get(self):
self.write('<form method="post">'
'Enter your username: <input name="username" type="text">'
'<button type="submit" class="btn">Login</button></form>')
def post(self):
username = self.get_argument('username')
if not username:
self.write('<form method="post">Enter your username: '
'<input name="username" type="text">'
'<button type="submit" class="btn">Login</button>'
'</form>')
else:
self.session.set('user', username)
self.redirect('/')
class LogoutHandler(BaseHandler, SessionMixin):
def get(self):
self.session.delete('user')
self.redirect("/")
def main():
log.startLogging(sys.stdout)
reactor.listenTCP(8888, Application(), interface="127.0.0.1")
reactor.run()
if __name__ == "__main__":
main()
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