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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 base64
import functools
import sys
import cyclone.redis
import cyclone.web
from twisted.python import log
from twisted.internet import defer, reactor
try:
import txmongo
except ImportError:
print("You need txmongo: "
"https://github.com/fiorix/mongo-async-python-driver")
sys.exit(1)
class Application(cyclone.web.Application):
def __init__(self):
mongodb = txmongo.lazyMongoConnectionPool()
handlers = [
(r"/", IndexHandler, dict(mongodb=mongodb)),
(r"/createuser", CreateUserHandler, dict(mongodb=mongodb)),
]
cyclone.web.Application.__init__(self, handlers, debug=True)
def HTTPBasic(method):
@defer.inlineCallbacks
@functools.wraps(method)
def wrapper(self, *args, **kwargs):
try:
auth_type, auth_data = \
self.request.headers["Authorization"].split()
assert auth_type == "Basic"
usr, pwd = base64.b64decode(auth_data).split(":", 1)
except:
raise cyclone.web.HTTPAuthenticationRequired
try:
# search for user under the "cyclonedb.users" collection
response = yield self.mongodb.cyclonedb.users.find_one(
{"usr": usr, "pwd": pwd}, fields=["usr"])
mongo_usr = response.get("usr")
except Exception, e:
log.msg("MongoDB failed to find(): %s" % str(e))
raise cyclone.web.HTTPError(503) # Service Unavailable
if usr != mongo_usr:
raise cyclone.web.HTTPAuthenticationRequired
else:
self._current_user = usr
defer.returnValue(method(self, *args, **kwargs))
return wrapper
class IndexHandler(cyclone.web.RequestHandler):
def initialize(self, mongodb):
self.mongodb = mongodb
@HTTPBasic
def get(self):
self.write("Hi, %s." % self._current_user)
class CreateUserHandler(cyclone.web.RequestHandler):
def initialize(self, mongodb):
self.mongodb = mongodb
@defer.inlineCallbacks
def post(self):
usr = self.get_argument("username")
pwd = self.get_argument("password")
try:
# create user under the "cyclonedb.users" collection
ObjId = yield self.mongodb.cyclonedb.users.update(
{"usr": usr}, {"usr": usr, "pwd": pwd},
upsert=True, safe=True)
except Exception, e:
log.msg("MongoDB failed to upsert(): %s" % str(e))
raise cyclone.web.HTTPError(503) # Service Unavailable
self.write("User created. ObjId=%s\r\n" % ObjId)
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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