web/views/sessions.py
author Nicolas Chauvat <nicolas.chauvat@logilab.fr>
Wed, 23 Mar 2011 11:35:41 +0100
branchstable
changeset 7099 ee9f1e1890e0
parent 6848 f87cd875c6db
child 7428 5338d895b891
permissions -rw-r--r--
[doc] fix urls pointing to repositories and download sites
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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 import RepositoryError, Unauthorized
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from cubicweb.web import InvalidSession, Redirect
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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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        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 = self.authmanager.authenticate(req)
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        session = DBAPISession(cnx, login)
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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 postlogin(self, req):
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        """postlogin: the user has been authenticated, redirect to the original
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        page (index by default) with a welcome message
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        """
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        # Update last connection date
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        # XXX: this should be in a post login hook in the repository, but there
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        #      we can't differentiate actual login of automatic session
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        #      reopening. Is it actually a problem?
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        if 'last_login_time' in req.vreg.schema:
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            self._update_last_login_time(req)
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        args = req.form
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        for forminternal_key in ('__form_id', '__domid', '__errorurl'):
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            args.pop(forminternal_key, None)
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        args['__message'] = req._('welcome %s !') % req.user.login
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        if 'vid' in req.form:
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            args['vid'] = req.form['vid']
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        if 'rql' in req.form:
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            args['rql'] = req.form['rql']
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        path = req.relative_path(False)
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        if path == 'login':
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            path = 'view'
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        raise Redirect(req.build_url(path, **args))
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    def _update_last_login_time(self, req):
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        # XXX should properly detect missing permission / non writeable source
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parents: 6279
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   104
        # and avoid "except (RepositoryError, Unauthorized)" below
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parents: 6279
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   105
        if req.user.cw_metainformation()['source']['type'] == 'ldapuser':
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   106
            return
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parents: 6279
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   107
        try:
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parents: 6279
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   108
            req.execute('SET X last_login_time NOW WHERE X eid %(x)s',
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parents: 6279
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   109
                        {'x' : req.user.eid})
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parents: 6279
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   110
            req.cnx.commit()
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parents: 6279
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   111
        except (RepositoryError, Unauthorized):
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parents: 6279
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   112
            req.cnx.rollback()
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parents: 6279
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   113
        except:
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parents: 6279
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   114
            req.cnx.rollback()
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parents: 6279
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   115
            raise
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parents: 6279
diff changeset
   116
0
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
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   117
    def close_session(self, session):
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parents:
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   118
        """close session on logout or on invalid session detected (expired out,
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parents:
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   119
        corrupted...)
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parents:
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   120
        """
5799
93f4b4d2fecf use sessionid in log message
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 5426
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   121
        self.info('closing http session %s' % session.sessionid)
0
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parents:
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   122
        del self._sessions[session.sessionid]
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parents:
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   123
        try:
5223
6abd6e3599f4 #773448: refactor session and 'no connection' handling, by introducing proper web session. We should now be able to see page even when no anon is configured, and be redirected to the login form as soon as one tries to do a query.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5080
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   124
            session.cnx.close()
0
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parents:
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   125
        except:
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   126
            # already closed, may occurs if the repository session expired but
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
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   127
            # not the web session
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parents:
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   128
            pass
5223
6abd6e3599f4 #773448: refactor session and 'no connection' handling, by introducing proper web session. We should now be able to see page even when no anon is configured, and be redirected to the login form as soon as one tries to do a query.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5080
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   129
        session.cnx = None