Mercurial > eagle-eye
comparison ikweb/ikweb/gaeo/session/memcache.py @ 247:7747bbe5b68e
start to develope Information Exchange Center of Ikariam Game. (prototpye)
| author | "Hisn Yi, Chen <ossug.hychen@gmail.com>" |
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| date | Mon, 01 Dec 2008 00:27:22 +0800 |
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| 246:60c4b4b78a01 | 247:7747bbe5b68e |
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| 1 # -*- coding: utf-8 -*- | |
| 2 # | |
| 3 # Copyright 2008 Lin-Chieh Shangkuan & Liang-Heng Chen | |
| 4 # | |
| 5 # Licensed under the Apache License, Version 2.0 (the "License"); | |
| 6 # you may not use this file except in compliance with the License. | |
| 7 # You may obtain a copy of the License at | |
| 8 # | |
| 9 # http://www.apache.org/licenses/LICENSE-2.0 | |
| 10 # | |
| 11 # Unless required by applicable law or agreed to in writing, software | |
| 12 # distributed under the License is distributed on an "AS IS" BASIS, | |
| 13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 14 # See the License for the specific language governing permissions and | |
| 15 # limitations under the License. | |
| 16 # | |
| 17 """ GAEO Session - memcache store """ | |
| 18 import random | |
| 19 import pickle | |
| 20 import logging | |
| 21 | |
| 22 from google.appengine.api import memcache | |
| 23 | |
| 24 from gaeo import session | |
| 25 | |
| 26 class MemcacheSession(session.Session): | |
| 27 """ session that uses memcache """ | |
| 28 | |
| 29 def __init__(self, hnd, name = 'gaeo_session', timeout = 60 * 60): | |
| 30 super(MemcacheSession, self).__init__(hnd, name, timeout) | |
| 31 | |
| 32 # check from cookie | |
| 33 if name in hnd.request.cookies: | |
| 34 self._id = hnd.request.cookies[name] | |
| 35 session_data = memcache.get(self._id) | |
| 36 if session_data: | |
| 37 self.update(pickle.loads(session_data)) | |
| 38 memcache.set(self._id, session_data, timeout) | |
| 39 else: # not in the cookie, set it | |
| 40 cookie = '%s=%s' % (name, self._id) | |
| 41 hnd.response.headers.add_header('Set-Cookie', cookie) | |
| 42 | |
| 43 def put(self): | |
| 44 if not self._invalidated: | |
| 45 memcache.set(self._id, pickle.dumps(self.copy()), self._timeout) | |
| 46 | |
| 47 def invalidate(self): | |
| 48 """Invalidates the session data""" | |
| 49 self._hnd.response.headers.add_header( | |
| 50 'Set-Cookie', | |
| 51 '%s=; expires=Thu, 1-Jan-1970 00:00:00 GMT;' % self._name | |
| 52 ) | |
| 53 memcache.delete(self._id) | |
| 54 self.clear() | |
| 55 self._invalidated = True |