web/views/sessions.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Thu, 23 Sep 2010 10:47:54 +0200
branchstable
changeset 6316 51aa84c40a71
parent 6240 fd0cbb801007
child 6279 42079f752a9c
permissions -rw-r--r--
[test] we actually still need the set_option on base-url for multi-sources (eg repo) configuration
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# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
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#
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# This file is part of CubicWeb.
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#
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# CubicWeb is free software: you can redistribute it and/or modify it under the
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# terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation, either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
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"""web session component: by dfault the session is actually the db connection
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object :/
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"""
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__docformat__ = "restructuredtext en"
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from cubicweb.web import InvalidSession
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from cubicweb.web.application import AbstractSessionManager
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from cubicweb.dbapi import DBAPISession
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class InMemoryRepositorySessionManager(AbstractSessionManager):
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    """manage session data associated to a session identifier"""
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    def __init__(self, *args, **kwargs):
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        AbstractSessionManager.__init__(self, *args, **kwargs)
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        # 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 = {}
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    # dump_data / restore_data to avoid loosing open sessions on registry
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    # reloading
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    def dump_data(self):
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        return self._sessions
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    def restore_data(self, data):
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        self._sessions = data
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    def current_sessions(self):
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        return self._sessions.values()
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    def get_session(self, req, sessionid):
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        """return existing session for the given session identifier"""
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        if not sessionid in self._sessions:
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            raise InvalidSession()
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        session = self._sessions[sessionid]
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        if self.has_expired(session):
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            self.close_session(session)
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            raise InvalidSession()
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        try:
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            user = self.authmanager.validate_session(req, session)
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        except InvalidSession:
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            # invalid session
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            self.close_session(session)
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            raise
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        # associate the connection to the current request
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        req.set_session(session, user)
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        return session
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    def open_session(self, req):
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        """open and return a new session for the given request. The session is
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        also bound to the request.
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        raise :exc:`cubicweb.AuthenticationError` if authentication failed
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        (no authentication info found or wrong user/password)
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        """
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        cnx, login, authinfo = self.authmanager.authenticate(req)
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        session = DBAPISession(cnx, login, authinfo)
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        self._sessions[session.sessionid] = session
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        # associate the connection to the current request
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        req.set_session(session)
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        return session
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    def close_session(self, session):
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        """close session on logout or on invalid session detected (expired out,
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        corrupted...)
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        """
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        self.info('closing http session %s' % session.sessionid)
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        del self._sessions[session.sessionid]
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        try:
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            session.cnx.close()
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        except:
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            # already closed, may occurs if the repository session expired but
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            # not the web session
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            pass
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        session.cnx = None