web/application.py
author Alexandre Fayolle <alexandre.fayolle@logilab.fr>
Wed, 07 Apr 2010 11:56:30 +0200
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"""CubicWeb web client application object
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:organization: Logilab
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:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
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"""
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__docformat__ = "restructuredtext en"
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import sys
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from time import clock, time
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from logilab.common.deprecation import deprecated
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from rql import BadRQLQuery
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from cubicweb import set_log_methods, cwvreg
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from cubicweb import (
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    ValidationError, Unauthorized, AuthenticationError, NoSelectableObject,
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    RepositoryError, CW_EVENT_MANAGER)
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from cubicweb.web import LOGGER, component
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from cubicweb.web import (
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    StatusResponse, DirectResponse, Redirect, NotFound,
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    RemoteCallFailed, ExplicitLogin, InvalidSession, RequestError)
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# make session manager available through a global variable so the debug view can
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# print information about web session
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SESSION_MANAGER = None
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class AbstractSessionManager(component.Component):
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    """manage session data associated to a session identifier"""
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    __regid__ = 'sessionmanager'
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    def __init__(self, vreg):
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        self.session_time = vreg.config['http-session-time'] or None
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        assert self.session_time is None or self.session_time > 0
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        self.cleanup_session_time = vreg.config['cleanup-session-time'] or 43200
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        assert self.cleanup_session_time > 0
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        self.cleanup_anon_session_time = vreg.config['cleanup-anonymous-session-time'] or 120
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        assert self.cleanup_anon_session_time > 0
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        if self.session_time:
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            assert self.cleanup_session_time < self.session_time
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            assert self.cleanup_anon_session_time < self.session_time
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        self.authmanager = vreg['components'].select('authmanager', vreg=vreg)
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    def clean_sessions(self):
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        """cleanup sessions which has not been unused since a given amount of
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        time. Return the number of sessions which have been closed.
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        """
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        self.debug('cleaning http sessions')
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        closed, total = 0, 0
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        for session in self.current_sessions():
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            no_use_time = (time() - session.last_usage_time)
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            total += 1
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            if session.anonymous_connection:
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                if no_use_time >= self.cleanup_anon_session_time:
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                    self.close_session(session)
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                    closed += 1
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            elif no_use_time >= self.cleanup_session_time:
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                self.close_session(session)
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                closed += 1
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        return closed, total - closed
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    def has_expired(self, session):
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        """return True if the web session associated to the session is expired
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        """
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        return not (self.session_time is None or
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                    time() < session.last_usage_time + self.session_time)
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    def current_sessions(self):
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        """return currently open sessions"""
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        raise NotImplementedError()
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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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        raise NotImplementedError()
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    def open_session(self, req):
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        """open and return a new session for the given request
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        :raise ExplicitLogin: if authentication is required
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        """
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        raise NotImplementedError()
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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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        raise NotImplementedError()
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class AbstractAuthenticationManager(component.Component):
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    """authenticate user associated to a request and check session validity"""
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    id = 'authmanager'
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    vreg = None # XXX necessary until property for deprecation warning is on appobject
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    def __init__(self, vreg):
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        self.vreg = vreg
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    def authenticate(self, req):
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        """authenticate user and return corresponding user object
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        :raise ExplicitLogin: if authentication is required (no authentication
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        info found or wrong user/password)
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        """
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        raise NotImplementedError()
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class CookieSessionHandler(object):
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    """a session handler using a cookie to store the session identifier
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    :cvar SESSION_VAR:
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      string giving the name of the variable used to store the session
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      identifier
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    """
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    SESSION_VAR = '__session'
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    def __init__(self, appli):
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        self.vreg = appli.vreg
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        self.session_manager = self.vreg['components'].select('sessionmanager',
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                                                              vreg=self.vreg)
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        global SESSION_MANAGER
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        SESSION_MANAGER = self.session_manager
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        if not 'last_login_time' in self.vreg.schema:
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            self._update_last_login_time = lambda x: None
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   126
        if self.vreg.config.mode != 'test':
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            # don't try to reset session manager during test, this leads to
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   128
            # weird failures when running multiple tests
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   129
            CW_EVENT_MANAGER.bind('after-registry-reload',
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   130
                                  self.reset_session_manager)
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   131
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   132
    def reset_session_manager(self):
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   133
        data = self.session_manager.dump_data()
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   134
        self.session_manager = self.vreg['components'].select('sessionmanager',
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   135
                                                              vreg=self.vreg)
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   136
        self.session_manager.restore_data(data)
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   137
        global SESSION_MANAGER
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        SESSION_MANAGER = self.session_manager
0
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    def clean_sessions(self):
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        """cleanup sessions which has not been unused since a given amount of
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        time
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        """
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        self.session_manager.clean_sessions()
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0
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    def set_session(self, req):
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        """associate a session to the request
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        Session id is searched from :
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        - # form variable
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        - cookie
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        if no session id is found, open a new session for the connected user
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        or request authentification as needed
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   155
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        :raise Redirect: if authentication has occured and succeed
0
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        """
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   158
        assert req.cnx is None # at this point no cnx should be set on the request
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   159
        cookie = req.get_cookie()
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        try:
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            sessionid = str(cookie[self.SESSION_VAR].value)
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        except KeyError: # no session cookie
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   163
            session = self.open_session(req)
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   164
        else:
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   165
            try:
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   166
                session = self.get_session(req, sessionid)
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   167
            except InvalidSession:
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   168
                try:
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   169
                    session = self.open_session(req)
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                except ExplicitLogin:
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                    req.remove_cookie(cookie, self.SESSION_VAR)
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                    raise
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   173
        # remember last usage time for web session tracking
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   174
        session.last_usage_time = time()
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   175
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    def get_session(self, req, sessionid):
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        return self.session_manager.get_session(req, sessionid)
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   178
0
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    def open_session(self, req):
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        session = self.session_manager.open_session(req)
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   181
        cookie = req.get_cookie()
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        cookie[self.SESSION_VAR] = session.sessionid
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   183
        req.set_cookie(cookie, self.SESSION_VAR, maxage=None)
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   184
        # remember last usage time for web session tracking
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        session.last_usage_time = time()
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   186
        if not session.anonymous_connection:
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   187
            self._postlogin(req)
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   188
        return session
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   189
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    def _update_last_login_time(self, req):
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   191
        try:
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   192
            req.execute('SET X last_login_time NOW WHERE X eid %(x)s',
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   193
                        {'x' : req.user.eid}, 'x')
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   194
            req.cnx.commit()
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   195
        except (RepositoryError, Unauthorized):
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   196
            # ldap user are not writeable for instance
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   197
            req.cnx.rollback()
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   198
        except:
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   199
            req.cnx.rollback()
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   200
            raise
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diff changeset
   201
0
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   202
    def _postlogin(self, req):
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   203
        """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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   205
        """
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   206
        # Update last connection date
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   207
        # XXX: this should be in a post login hook in the repository, but there
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   208
        #      we can't differentiate actual login of automatic session
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   209
        #      reopening. Is it actually a problem?
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   210
        self._update_last_login_time(req)
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   211
        args = req.form
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diff changeset
   212
        for forminternal_key in ('__form_id', '__domid', '__errorurl'):
82afdc7d8cd8 cleanup internal forms parameters in postlogin
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diff changeset
   213
            args.pop(forminternal_key, None)
0
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   214
        args['__message'] = req._('welcome %s !') % req.user.login
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diff changeset
   215
        if 'vid' in req.form:
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   216
            args['vid'] = req.form['vid']
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   217
        if 'rql' in req.form:
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   218
            args['rql'] = req.form['rql']
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   219
        path = req.relative_path(False)
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   220
        if path == 'login':
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   221
            path = 'view'
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   222
        raise Redirect(req.build_url(path, **args))
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diff changeset
   223
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diff changeset
   224
    def logout(self, req, goto_url):
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diff changeset
   225
        """logout from the instance by cleaning the session and raising
0
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   226
        `AuthenticationError`
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diff changeset
   227
        """
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   228
        self.session_manager.close_session(req.cnx)
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   229
        req.remove_cookie(req.get_cookie(), self.SESSION_VAR)
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   230
        raise AuthenticationError(url=goto_url)
0
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diff changeset
   231
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   232
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class CubicWebPublisher(object):
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   234
    """the publisher is a singleton hold by the web frontend, and is responsible
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   235
    to publish HTTP request.
0
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   236
    """
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diff changeset
   237
0
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   238
    def __init__(self, config, debug=None,
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   239
                 session_handler_fact=CookieSessionHandler,
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diff changeset
   240
                 vreg=None):
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d87989d91635 fix duplicated vregistry initialization during tests
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diff changeset
   241
        self.info('starting web instance from %s', config.apphome)
0
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diff changeset
   242
        if vreg is None:
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c6c832d32936 [webapp] missing renaming
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diff changeset
   243
            vreg = cwvreg.CubicWebVRegistry(config, debug=debug)
0
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   244
        self.vreg = vreg
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diff changeset
   245
        # connect to the repository and get instance's schema
0
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   246
        self.repo = config.repository(vreg)
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diff changeset
   247
        if not vreg.initialized:
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diff changeset
   248
            self.config.init_cubes(self.repo.get_cubes())
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diff changeset
   249
            vreg.init_properties(self.repo.properties())
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diff changeset
   250
            vreg.set_schema(self.repo.get_schema())
0
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diff changeset
   251
        # set the correct publish method
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   252
        if config['query-log-file']:
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diff changeset
   253
            from threading import Lock
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diff changeset
   254
            self._query_log = open(config['query-log-file'], 'a')
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parents:
diff changeset
   255
            self.publish = self.log_publish
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parents: 1132
diff changeset
   256
            self._logfile_lock = Lock()
0
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parents:
diff changeset
   257
        else:
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parents:
diff changeset
   258
            self._query_log = None
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parents:
diff changeset
   259
            self.publish = self.main_publish
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parents:
diff changeset
   260
        # instantiate session and url resolving helpers
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   261
        self.session_handler = session_handler_fact(self)
2685
0518ca8f63e3 [autoreload] recompute urlresolver / urlrewriter after autoreload
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 2666
diff changeset
   262
        self.set_urlresolver()
2705
30bcdbd92820 [events] renamed source-reload into registry-reload to avoid potential confusions with datasources
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 2685
diff changeset
   263
        CW_EVENT_MANAGER.bind('after-registry-reload', self.set_urlresolver)
2685
0518ca8f63e3 [autoreload] recompute urlresolver / urlrewriter after autoreload
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 2666
diff changeset
   264
0518ca8f63e3 [autoreload] recompute urlresolver / urlrewriter after autoreload
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 2666
diff changeset
   265
    def set_urlresolver(self):
2887
1282dc6525c5 give vreg where we need it (eg no bound request)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2867
diff changeset
   266
        self.url_resolver = self.vreg['components'].select('urlpublisher',
1282dc6525c5 give vreg where we need it (eg no bound request)
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parents: 2867
diff changeset
   267
                                                           vreg=self.vreg)
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sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   268
0
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parents:
diff changeset
   269
    def connect(self, req):
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parents:
diff changeset
   270
        """return a connection for a logged user object according to existing
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   271
        sessions (i.e. a new connection may be created or an already existing
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   272
        one may be reused
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parents:
diff changeset
   273
        """
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parents:
diff changeset
   274
        self.session_handler.set_session(req)
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parents:
diff changeset
   275
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parents:
diff changeset
   276
    # publish methods #########################################################
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parents: 1132
diff changeset
   277
0
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parents:
diff changeset
   278
    def log_publish(self, path, req):
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parents:
diff changeset
   279
        """wrapper around _publish to log all queries executed for a given
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   280
        accessed path
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   281
        """
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   282
        try:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   283
            return self.main_publish(path, req)
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   284
        finally:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   285
            cnx = req.cnx
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   286
            self._logfile_lock.acquire()
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   287
            try:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   288
                try:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   289
                    result = ['\n'+'*'*80]
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   290
                    result.append(req.url())
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   291
                    result += ['%s %s -- (%.3f sec, %.3f CPU sec)' % q for q in cnx.executed_queries]
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   292
                    cnx.executed_queries = []
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   293
                    self._query_log.write('\n'.join(result).encode(req.encoding))
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   294
                    self._query_log.flush()
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   295
                except Exception:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   296
                    self.exception('error while logging queries')
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   297
            finally:
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   298
                self._logfile_lock.release()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   299
2788
8d3dbe577d3a R put version info in deprecation warnings
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 2706
diff changeset
   300
    @deprecated("[3.4] use vreg['controllers'].select(...)")
2058
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   301
    def select_controller(self, oid, req):
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   302
        try:
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   303
            return self.vreg['controllers'].select(oid, req=req, appli=self)
2058
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   304
        except NoSelectableObject:
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   305
            raise Unauthorized(req._('not authorized'))
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   306
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   307
    def main_publish(self, path, req):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   308
        """method called by the main publisher to process <path>
1426
379261551578 remove trailing spaces
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   309
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   310
        should return a string containing the resulting page or raise a
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   311
        `NotFound` exception
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   312
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   313
        :type path: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   314
        :param path: the path part of the url to publish
1426
379261551578 remove trailing spaces
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   315
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   316
        :type req: `web.Request`
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   317
        :param req: the request object
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   318
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   319
        :rtype: str
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   320
        :return: the result of the pusblished url
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   321
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   322
        path = path or 'view'
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   323
        # don't log form values they may contains sensitive information
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   324
        self.info('publish "%s" (form params: %s)', path, req.form.keys())
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   325
        # remove user callbacks on a new request (except for json controllers
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   326
        # to avoid callbacks being unregistered before they could be called)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   327
        tstart = clock()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   328
        try:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   329
            try:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   330
                ctrlid, rset = self.url_resolver.process(req, path)
2058
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   331
                try:
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   332
                    controller = self.vreg['controllers'].select(ctrlid, req,
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   333
                                                                 appli=self)
2058
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   334
                except NoSelectableObject:
7ef12c03447c nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1977
diff changeset
   335
                    raise Unauthorized(req._('not authorized'))
581
09f87f2c535e update_search_state in the publisher since it should be done whatever the controller
sylvain.thenault@logilab.fr
parents: 168
diff changeset
   336
                req.update_search_state()
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   337
                result = controller.publish(rset=rset)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   338
                if req.cnx is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   339
                    # req.cnx is None if anonymous aren't allowed and we are
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   340
                    # displaying the cookie authentication form
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   341
                    req.cnx.commit()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   342
            except (StatusResponse, DirectResponse):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   343
                req.cnx.commit()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   344
                raise
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   345
            except Redirect:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   346
                # redirect is raised by edit controller when everything went fine,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   347
                # so try to commit
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   348
                try:
4913
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 4897
diff changeset
   349
                    txuuid = req.cnx.commit()
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 4897
diff changeset
   350
                    if txuuid is not None:
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 4897
diff changeset
   351
                        msg = u'<span class="undo">[<a href="%s">%s</a>]</span>' %(
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 4897
diff changeset
   352
                            req.build_url('undo', txuuid=txuuid), req._('undo'))
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 4897
diff changeset
   353
                        req.append_to_redirect_message(msg)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   354
                except ValidationError, ex:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   355
                    self.validation_error_handler(req, ex)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   356
                except Unauthorized, ex:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   357
                    req.data['errmsg'] = req._('You\'re not authorized to access this page. '
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   358
                                               'If you think you should, please contact the site administrator.')
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   359
                    self.error_handler(req, ex, tb=False)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   360
                except Exception, ex:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   361
                    self.error_handler(req, ex, tb=True)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   362
                else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   363
                    # delete validation errors which may have been previously set
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   364
                    if '__errorurl' in req.form:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   365
                        req.del_session_data(req.form['__errorurl'])
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   366
                    raise
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   367
            except (AuthenticationError, NotFound, RemoteCallFailed):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   368
                raise
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   369
            except ValidationError, ex:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   370
                self.validation_error_handler(req, ex)
2272
f27a3a75be0d no tb for RequestError
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2263
diff changeset
   371
            except (Unauthorized, BadRQLQuery, RequestError), ex:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   372
                self.error_handler(req, ex, tb=False)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   373
            except Exception, ex:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   374
                self.error_handler(req, ex, tb=True)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   375
        finally:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   376
            if req.cnx is not None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   377
                try:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   378
                    req.cnx.rollback()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   379
                except:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   380
                    pass # ignore rollback error at this point
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   381
        self.info('query %s executed in %s sec', req.relative_path(), clock() - tstart)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   382
        return result
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   383
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   384
    def validation_error_handler(self, req, ex):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   385
        ex.errors = dict((k, v) for k, v in ex.errors.items())
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   386
        if '__errorurl' in req.form:
4224
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3408
diff changeset
   387
            forminfo = {'error': ex,
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   388
                        'values': req.form,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   389
                        'eidmap': req.data.get('eidmap', {})
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   390
                        }
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   391
            req.set_session_data(req.form['__errorurl'], forminfo)
4679
d8ad65dab3e9 remove #<formid> from url used to redirect after a validation error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4639
diff changeset
   392
            # XXX form session key / __error_url should be differentiated:
d8ad65dab3e9 remove #<formid> from url used to redirect after a validation error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4639
diff changeset
   393
            # session key is 'url + #<form dom id', though we usually don't want
d8ad65dab3e9 remove #<formid> from url used to redirect after a validation error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4639
diff changeset
   394
            # the browser to move to the form since it hides the global
d8ad65dab3e9 remove #<formid> from url used to redirect after a validation error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4639
diff changeset
   395
            # messages.
d8ad65dab3e9 remove #<formid> from url used to redirect after a validation error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4639
diff changeset
   396
            raise Redirect(req.form['__errorurl'].rsplit('#', 1)[0])
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   397
        self.error_handler(req, ex, tb=False)
1426
379261551578 remove trailing spaces
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   398
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   399
    def error_handler(self, req, ex, tb=False):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   400
        excinfo = sys.exc_info()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   401
        self.exception(repr(ex))
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   402
        req.set_header('Cache-Control', 'no-cache')
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   403
        req.remove_header('Etag')
4897
e402e0b32075 [web] start a new message system based on id of message stored in session's data
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4709
diff changeset
   404
        req.reset_message()
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   405
        req.reset_headers()
4709
6a71fc0b4274 [web] fix #724769: Use RemoteCallFailed in the publisher's error_handler
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4679
diff changeset
   406
        if req.json_request:
6a71fc0b4274 [web] fix #724769: Use RemoteCallFailed in the publisher's error_handler
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4679
diff changeset
   407
            raise RemoteCallFailed(unicode(ex))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   408
        try:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   409
            req.data['ex'] = ex
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   410
            if tb:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   411
                req.data['excinfo'] = excinfo
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   412
            req.form['vid'] = 'error'
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   413
            errview = self.vreg['views'].select('error', req)
882
75488a2a875e fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents: 871
diff changeset
   414
            template = self.main_template_id(req)
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   415
            content = self.vreg['views'].main_template(req, template, view=errview)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   416
        except:
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   417
            content = self.vreg['views'].main_template(req, 'error-template')
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   418
        raise StatusResponse(500, content)
1426
379261551578 remove trailing spaces
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   419
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   420
    def need_login_content(self, req):
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   421
        return self.vreg['views'].main_template(req, 'login')
1426
379261551578 remove trailing spaces
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   422
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   423
    def loggedout_content(self, req):
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   424
        return self.vreg['views'].main_template(req, 'loggedout')
1426
379261551578 remove trailing spaces
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   425
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   426
    def notfound_content(self, req):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   427
        req.form['vid'] = '404'
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   428
        view = self.vreg['views'].select('404', req)
882
75488a2a875e fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents: 871
diff changeset
   429
        template = self.main_template_id(req)
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   430
        return self.vreg['views'].main_template(req, template, view=view)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   431
882
75488a2a875e fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents: 871
diff changeset
   432
    def main_template_id(self, req):
2263
1f59cd5b710f accept a __template parameter that specifies a different (main) template
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 1977
diff changeset
   433
        template = req.form.get('__template', req.property_value('ui.main-template'))
2650
18aec79ec3a3 R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2613
diff changeset
   434
        if template not in self.vreg['views']:
882
75488a2a875e fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents: 871
diff changeset
   435
            template = 'main-template'
75488a2a875e fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents: 871
diff changeset
   436
        return template
1426
379261551578 remove trailing spaces
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   437
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   438
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   439
set_log_methods(CubicWebPublisher, LOGGER)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   440
set_log_methods(CookieSessionHandler, LOGGER)