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91 lines
3.1 KiB
91 lines
3.1 KiB
###################################################################################
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#
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# Copyright (c) 2017-2019 MuK IT GmbH.
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#
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# This file is part of MuK Session Store
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# (see https://mukit.at).
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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###################################################################################
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import functools
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import logging
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import pickle
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from odoo.tools import config
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from werkzeug.contrib.sessions import SessionStore
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_logger = logging.getLogger(__name__)
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try:
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import redis
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except ImportError:
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pass
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SESSION_TIMEOUT = 60 * 60 * 24 * 7
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def retry_redis(func):
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@functools.wraps(func)
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def wrapper(self, *args, **kwargs):
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for attempts in range(1, 6):
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try:
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return func(self, *args, **kwargs)
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except redis.ConnectionError as error:
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_logger.warn("SessionStore connection failed! (%s/5)" % attempts)
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if attempts >= 5:
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raise error
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return wrapper
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class RedisSessionStore(SessionStore):
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def __init__(self, *args, **kwargs):
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super(RedisSessionStore, self).__init__(*args, **kwargs)
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self.prefix = config.get("session_store_prefix", "")
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self.server = redis.Redis(
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host=config.get("session_store_host", "localhost"),
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port=int(config.get("session_store_port", 6379)),
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db=int(config.get("session_store_dbindex", 1)),
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password=config.get("session_store_pass", None),
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)
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def _encode_session_key(self, key):
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return key.encode("utf-8") if isinstance(key, str) else key
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def _get_session_key(self, sid):
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return self._encode_session_key(self.prefix + sid)
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@retry_redis
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def save(self, session):
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key = self._get_session_key(session.sid)
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payload = pickle.dumps(dict(session), pickle.HIGHEST_PROTOCOL)
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self.server.setex(name=key, value=payload, time=SESSION_TIMEOUT)
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@retry_redis
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def delete(self, session):
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self.server.delete(self._get_session_key(session.sid))
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@retry_redis
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def get(self, sid):
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if not self.is_valid_key(sid):
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return self.new()
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key = self._get_session_key(sid)
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payload = self.server.get(key)
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if payload:
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self.server.setex(name=key, value=payload, time=SESSION_TIMEOUT)
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return self.session_class(pickle.loads(payload), sid, False)
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else:
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return self.session_class({}, sid, False)
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