+
−# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+
−# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
+
−#
+
−# This file is part of CubicWeb.
+
−#
+
−# CubicWeb is free software: you can redistribute it and/or modify it under the
+
−# terms of the GNU Lesser General Public License as published by the Free
+
−# Software Foundation, either version 2.1 of the License, or (at your option)
+
−# any later version.
+
−#
+
−# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
+
−# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+
−# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+
−# details.
+
−#
+
−# You should have received a copy of the GNU Lesser General Public License along
+
−# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
+
−"""web session component: by dfault the session is actually the db connection
+
−object :/
+
−"""
+
−
+
−__docformat__ = "restructuredtext en"
+
−
+
−from cubicweb.web import InvalidSession
+
−from cubicweb.web.application import AbstractSessionManager
+
−from cubicweb.dbapi import DBAPISession
+
−
+
−
+
−class InMemoryRepositorySessionManager(AbstractSessionManager):
+
−    """manage session data associated to a session identifier"""
+
−
+
−    def __init__(self, *args, **kwargs):
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−        AbstractSessionManager.__init__(self, *args, **kwargs)
+
−        # XXX require a RepositoryAuthenticationManager which violates
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−        #     authenticate interface by returning a session instead of a user
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−        #assert isinstance(self.authmanager, RepositoryAuthenticationManager)
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−        self._sessions = {}
+
−
+
−    # dump_data / restore_data to avoid loosing open sessions on registry
+
−    # reloading
+
−    def dump_data(self):
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−        return self._sessions
+
−    def restore_data(self, data):
+
−        self._sessions = data
+
−
+
−    def current_sessions(self):
+
−        return self._sessions.values()
+
−
+
−    def get_session(self, req, sessionid):
+
−        """return existing session for the given session identifier"""
+
−        if not sessionid in self._sessions:
+
−            raise InvalidSession()
+
−        session = self._sessions[sessionid]
+
−        try:
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−            user = self.authmanager.validate_session(req, session)
+
−        except InvalidSession:
+
−            # invalid session
+
−            self.close_session(session)
+
−            raise
+
−        # associate the connection to the current request
+
−        req.set_session(session, user)
+
−        return session
+
−
+
−    def open_session(self, req):
+
−        """open and return a new session for the given request. The session is
+
−        also bound to the request.
+
−
+
−        raise :exc:`cubicweb.AuthenticationError` if authentication failed
+
−        (no authentication info found or wrong user/password)
+
−        """
+
−        cnx, login, authinfo = self.authmanager.authenticate(req)
+
−        session = DBAPISession(cnx, login, authinfo)
+
−        self._sessions[session.sessionid] = session
+
−        # associate the connection to the current request
+
−        req.set_session(session)
+
−        return session
+
−
+
−    def close_session(self, session):
+
−        """close session on logout or on invalid session detected (expired out,
+
−        corrupted...)
+
−        """
+
−        self.info('closing http session %s' % session.sessionid)
+
−        del self._sessions[session.sessionid]
+
−        try:
+
−            session.cnx.close()
+
−        except:
+
−            # already closed, may occurs if the repository session expired but
+
−            # not the web session
+
−            pass
+
−        session.cnx = None