web/application.py
author Julien Cristau <julien.cristau@logilab.fr>
Tue, 03 Nov 2015 12:25:14 +0100
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permissions -rw-r--r--
[web/application] return bytes from redirect_handler and validation_error_handler
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# copyright 2003-2014 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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"""CubicWeb web client application object"""
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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 contextlib import contextmanager
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from warnings import warn
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import json
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from six import text_type, binary_type
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from six.moves import http_client
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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, Forbidden,
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    AuthenticationError, NoSelectableObject,
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    CW_EVENT_MANAGER)
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from cubicweb.repoapi import anonymous_cnx
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from cubicweb.web import LOGGER, component, cors
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from cubicweb.web import (
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    StatusResponse, DirectResponse, Redirect, NotFound, LogOut,
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    RemoteCallFailed, InvalidSession, RequestError, PublishException)
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from cubicweb.web.request import CubicWebRequestBase
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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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@contextmanager
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def anonymized_request(req):
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    orig_cnx = req.cnx
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    anon_cnx = anonymous_cnx(orig_cnx.session.repo)
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    req.set_cnx(anon_cnx)
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    try:
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        with anon_cnx:
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            yield req
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    finally:
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        req.set_cnx(orig_cnx)
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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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    def __init__(self, appli):
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        self.repo = appli.repo
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        self.vreg = appli.vreg
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        self.session_manager = self.vreg['sessions'].select('sessionmanager',
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                                                            repo=self.repo)
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        global SESSION_MANAGER
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        SESSION_MANAGER = self.session_manager
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        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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            # weird failures when running multiple tests
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            CW_EVENT_MANAGER.bind('after-registry-reload',
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                                  self.reset_session_manager)
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    def reset_session_manager(self):
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        data = self.session_manager.dump_data()
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        self.session_manager = self.vreg['sessions'].select('sessionmanager',
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                                                            repo=self.repo)
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        self.session_manager.restore_data(data)
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        global SESSION_MANAGER
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        SESSION_MANAGER = self.session_manager
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    @property
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    def clean_sessions_interval(self):
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        return self.session_manager.clean_sessions_interval
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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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    def session_cookie(self, req):
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        """return a string giving the name of the cookie used to store the
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        session identifier.
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        """
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        if req.https:
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            return '__%s_https_session' % self.vreg.config.appid
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        return '__%s_session' % self.vreg.config.appid
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    def get_session(self, req):
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        """Return a session object corresponding to credentials held by the req
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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, try opening a new session with credentials
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        found in the request.
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        Raises AuthenticationError if no session can be found or created.
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        """
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        cookie = req.get_cookie()
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        sessioncookie = self.session_cookie(req)
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        try:
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            sessionid = str(cookie[sessioncookie].value)
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            session = self.get_session_by_id(req, sessionid)
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        except (KeyError, InvalidSession): # no valid session cookie
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            session = self.open_session(req)
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        return session
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    def get_session_by_id(self, req, sessionid):
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        session = self.session_manager.get_session(req, sessionid)
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        session.mtime = time()
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        return session
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    def open_session(self, req):
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        session = self.session_manager.open_session(req)
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        sessioncookie = self.session_cookie(req)
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        secure = req.https and req.base_url().startswith('https://')
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        req.set_cookie(sessioncookie, session.sessionid,
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                       maxage=None, secure=secure, httponly=True)
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        if not session.anonymous_session:
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            self.session_manager.postlogin(req, session)
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        return session
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    def logout(self, req, goto_url):
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        """logout from the instance by cleaning the session and raising
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        `AuthenticationError`
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        """
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        self.session_manager.close_session(req.session)
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        req.remove_cookie(self.session_cookie(req))
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        raise LogOut(url=goto_url)
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    # these are overridden by set_log_methods below
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    # only defining here to prevent pylint from complaining
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    info = warning = error = critical = exception = debug = lambda msg,*a,**kw: None
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class CubicWebPublisher(object):
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    """the publisher is a singleton hold by the web frontend, and is responsible
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    to publish HTTP request.
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    The http server will call its main entry point ``application.handle_request``.
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    .. automethod:: cubicweb.web.application.CubicWebPublisher.main_handle_request
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    You have to provide both a repository and web-server config at
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    initialization. In all in one instance both config will be the same.
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    """
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    def __init__(self, repo, config, session_handler_fact=CookieSessionHandler):
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        self.info('starting web instance from %s', config.apphome)
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        self.repo = repo
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        self.vreg = repo.vreg
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        # get instance's schema
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        if not self.vreg.initialized:
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            config.init_cubes(self.repo.get_cubes())
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            self.vreg.init_properties(self.repo.properties())
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            self.vreg.set_schema(self.repo.get_schema())
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        # set the correct publish method
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        if config['query-log-file']:
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            from threading import Lock
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            self._query_log = open(config['query-log-file'], 'a')
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            self.handle_request = self.log_handle_request
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            self._logfile_lock = Lock()
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        else:
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            self._query_log = None
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            self.handle_request = self.main_handle_request
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        # instantiate session and url resolving helpers
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        self.session_handler = session_handler_fact(self)
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        self.set_urlresolver()
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        CW_EVENT_MANAGER.bind('after-registry-reload', self.set_urlresolver)
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    def set_urlresolver(self):
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        self.url_resolver = self.vreg['components'].select('urlpublisher',
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                                                           vreg=self.vreg)
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    def get_session(self, req):
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        """Return a session object corresponding to credentials held by the req
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        May raise AuthenticationError.
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        """
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        return self.session_handler.get_session(req)
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    # publish methods #########################################################
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    def log_handle_request(self, req, path):
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        """wrapper around _publish to log all queries executed for a given
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        accessed path
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        """
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        def wrap_set_cnx(func):
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            def wrap_execute(cnx):
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                orig_execute = cnx.execute
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                def execute(rql, kwargs=None, build_descr=True):
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                    tstart, cstart = time(), clock()
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                    rset = orig_execute(rql, kwargs, build_descr=build_descr)
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                    cnx.executed_queries.append((rql, kwargs, time() - tstart, clock() - cstart))
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                    return rset
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                return execute
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   217
            def set_cnx(cnx):
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   218
                func(cnx)
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   219
                cnx.execute = wrap_execute(cnx)
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   220
                cnx.executed_queries = []
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   221
            return set_cnx
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   222
        req.set_cnx = wrap_set_cnx(req.set_cnx)
0
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        try:
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   224
            return self.main_handle_request(req, path)
0
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        finally:
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            cnx = req.cnx
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   227
            if cnx:
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   228
                with self._logfile_lock:
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                    try:
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   230
                        result = ['\n'+'*'*80]
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diff changeset
   231
                        result.append(req.url())
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   232
                        result += ['%s %s -- (%.3f sec, %.3f CPU sec)' % q
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diff changeset
   233
                                   for q in cnx.executed_queries]
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diff changeset
   234
                        cnx.executed_queries = []
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.
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diff changeset
   235
                        self._query_log.write('\n'.join(result).encode(req.encoding))
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.
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diff changeset
   236
                        self._query_log.flush()
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diff changeset
   237
                    except Exception:
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.
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diff changeset
   238
                        self.exception('error while logging queries')
0
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diff changeset
   239
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   240
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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diff changeset
   241
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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   242
    def main_handle_request(self, req, path):
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diff changeset
   243
        """Process an http request
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diff changeset
   244
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   245
        Arguments are:
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diff changeset
   246
        - a Request object
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diff changeset
   247
        - path of the request object
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diff changeset
   248
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   249
        It returns the content of the http response. HTTP header and status are
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   250
        set on the Request object.
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diff changeset
   251
        """
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diff changeset
   252
        if not isinstance(req, CubicWebRequestBase):
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diff changeset
   253
            warn('[3.15] Application entry point arguments are now (req, path) '
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diff changeset
   254
                 'not (path, req)', DeprecationWarning, 2)
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diff changeset
   255
            req, path = path, req
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parents: 8311
diff changeset
   256
        if req.authmode == 'http':
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   257
            # activate realm-based auth
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parents: 8311
diff changeset
   258
            realm = self.vreg.config['realm']
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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diff changeset
   259
            req.set_header('WWW-Authenticate', [('Basic', {'realm' : realm })], raw=False)
10744
c5dc40988e6e [web] assert that CubicWebPublisher.handle_request returns bytes
Julien Cristau <julien.cristau@logilab.fr>
parents: 10740
diff changeset
   260
        content = b''
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diff changeset
   261
        try:
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parents: 8997
diff changeset
   262
            try:
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e08f9c55dab5 [application] call req.set_session in application.main_handle_request
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 9018
diff changeset
   263
                session = self.get_session(req)
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parents: 9066
diff changeset
   264
                from  cubicweb import repoapi
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635cfac73d28 [repoapi] fold ClientConnection into Connection
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 10322
diff changeset
   265
                cnx = repoapi.Connection(session)
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diff changeset
   266
                req.set_cnx(cnx)
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diff changeset
   267
            except AuthenticationError:
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3c85e734ce00 [webrequest] set DBAPISession without cnx at initialisation time
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parents: 9032
diff changeset
   268
                # Keep the dummy session set at initialisation.
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parents: 9032
diff changeset
   269
                # such session with work to an some extend but raise an
3c85e734ce00 [webrequest] set DBAPISession without cnx at initialisation time
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diff changeset
   270
                # AuthenticationError on any database access.
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diff changeset
   271
                import contextlib
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diff changeset
   272
                @contextlib.contextmanager
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diff changeset
   273
                def dummy():
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diff changeset
   274
                    yield
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diff changeset
   275
                cnx = dummy()
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diff changeset
   276
                # XXX We want to clean up this approach in the future. But
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diff changeset
   277
                # several cubes like registration or forgotten password rely on
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diff changeset
   278
                # this principle.
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diff changeset
   279
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diff changeset
   280
            # nested try to allow LogOut to delegate logic to AuthenticationError
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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diff changeset
   281
            # handler
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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diff changeset
   282
            try:
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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diff changeset
   283
                ### Try to generate the actual request content
9071
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parents: 9066
diff changeset
   284
                with cnx:
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diff changeset
   285
                    content = self.core_handle(req, path)
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   286
            # Handle user log-out
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   287
            except LogOut as ex:
8312
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parents: 8311
diff changeset
   288
                # When authentification is handled by cookie the code that
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   289
                # raised LogOut must has invalidated the cookie. We can just
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   290
                # reload the original url without authentification
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   291
                if self.vreg.config['auth-mode'] == 'cookie' and ex.url:
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   292
                    req.headers_out.setHeader('location', str(ex.url))
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   293
                if ex.status is not None:
10604
d4bf85db41f2 [py3k] import HTTP client constants and exceptions using six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10565
diff changeset
   294
                    req.status_out = http_client.SEE_OTHER
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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diff changeset
   295
                # When the authentification is handled by http we must
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   296
                # explicitly ask for authentification to flush current http
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   297
                # authentification information
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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diff changeset
   298
                else:
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   299
                    # Render "logged out" content.
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   300
                    # assignement to ``content`` prevent standard
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   301
                    # AuthenticationError code to overwrite it.
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   302
                    content = self.loggedout_content(req)
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   303
                    # let the explicitly reset http credential
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   304
                    raise AuthenticationError()
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358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   305
        except Redirect as ex:
8470
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   306
            # authentication needs redirection (eg openid)
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   307
            content = self.redirect_handler(req, ex)
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   308
        # Wrong, absent or Reseted credential
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   309
        except AuthenticationError:
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   310
            # If there is an https url configured and
9175
a7412e884d7b fix typos in docstring, doc and comments
Julien Cristau <julien.cristau@logilab.fr>
parents: 8997
diff changeset
   311
            # the request does not use https, redirect to login form
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   312
            https_url = self.vreg.config['https-url']
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   313
            if https_url and req.base_url() != https_url:
10604
d4bf85db41f2 [py3k] import HTTP client constants and exceptions using six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10565
diff changeset
   314
                req.status_out = http_client.SEE_OTHER
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   315
                req.headers_out.setHeader('location', https_url + 'login')
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   316
            else:
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
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parents: 8311
diff changeset
   317
                # We assume here that in http auth mode the user *May* provide
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   318
                # Authentification Credential if asked kindly.
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   319
                if self.vreg.config['auth-mode'] == 'http':
10604
d4bf85db41f2 [py3k] import HTTP client constants and exceptions using six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10565
diff changeset
   320
                    req.status_out = http_client.UNAUTHORIZED
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   321
                # In the other case (coky auth) we assume that there is no way
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   322
                # for the user to provide them...
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   323
                # XXX But WHY ?
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   324
                else:
10604
d4bf85db41f2 [py3k] import HTTP client constants and exceptions using six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10565
diff changeset
   325
                    req.status_out = http_client.FORBIDDEN
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   326
                # If previous error handling already generated a custom content
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   327
                # do not overwrite it. This is used by LogOut Except
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   328
                # XXX ensure we don't actually serve content
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   329
                if not content:
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   330
                    content = self.need_login_content(req)
10744
c5dc40988e6e [web] assert that CubicWebPublisher.handle_request returns bytes
Julien Cristau <julien.cristau@logilab.fr>
parents: 10740
diff changeset
   331
        assert isinstance(content, binary_type)
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   332
        return content
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   333
9571
aaf83cc07eed [web] implement cross origin resource sharing (CORS) (closes #2491768)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 9478
diff changeset
   334
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   335
    def core_handle(self, req, path):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   336
        """method called by the main publisher to process <path>
1426
379261551578 remove trailing spaces
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   337
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   338
        should return a string containing the resulting page or raise a
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   339
        `NotFound` exception
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   340
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   341
        :type path: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   342
        :param path: the path part of the url to publish
1426
379261551578 remove trailing spaces
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   343
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   344
        :type req: `web.Request`
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   345
        :param req: the request object
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   346
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   347
        :rtype: str
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   348
        :return: the result of the pusblished url
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   349
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   350
        # don't log form values they may contains sensitive information
8390
637b934bc742 [app] turn these info into debug logs (this being too chatty for .info)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8312
diff changeset
   351
        self.debug('publish "%s" (%s, form params: %s)',
8696
0bb18407c053 [toward py3k] rewrite dict.keys() and dict.values() (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8695
diff changeset
   352
                   path, req.session.sessionid, list(req.form))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   353
        # remove user callbacks on a new request (except for json controllers
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   354
        # to avoid callbacks being unregistered before they could be called)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   355
        tstart = clock()
5865
af414723598d [publisher] avoid useless rollback after successful commit, which clutters debug logs and may also not be cost-free
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5721
diff changeset
   356
        commited = False
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   357
        try:
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   358
            ### standard processing of the request
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   359
            try:
9571
aaf83cc07eed [web] implement cross origin resource sharing (CORS) (closes #2491768)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 9478
diff changeset
   360
                # apply CORS sanity checks
aaf83cc07eed [web] implement cross origin resource sharing (CORS) (closes #2491768)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 9478
diff changeset
   361
                cors.process_request(req, self.vreg.config)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   362
                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
   363
                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
   364
                    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
   365
                                                                 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
   366
                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
   367
                    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
   368
                req.update_search_state()
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   369
                result = controller.publish(rset=rset)
9571
aaf83cc07eed [web] implement cross origin resource sharing (CORS) (closes #2491768)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 9478
diff changeset
   370
            except cors.CORSPreflight:
aaf83cc07eed [web] implement cross origin resource sharing (CORS) (closes #2491768)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 9478
diff changeset
   371
                # Return directly an empty 200
aaf83cc07eed [web] implement cross origin resource sharing (CORS) (closes #2491768)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 9478
diff changeset
   372
                req.status_out = 200
10744
c5dc40988e6e [web] assert that CubicWebPublisher.handle_request returns bytes
Julien Cristau <julien.cristau@logilab.fr>
parents: 10740
diff changeset
   373
                result = b''
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   374
            except StatusResponse as ex:
9228
90b8c7a7e205 [deprecation] add (approximate) version number to deprecation message and set proper stacklevel
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9175
diff changeset
   375
                warn('[3.16] StatusResponse is deprecated use req.status_out',
90b8c7a7e205 [deprecation] add (approximate) version number to deprecation message and set proper stacklevel
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9175
diff changeset
   376
                     DeprecationWarning, stacklevel=2)
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   377
                result = ex.content
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   378
                req.status_out = ex.status
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   379
            except Redirect as ex:
8470
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   380
                # Redirect may be raised by edit controller when everything went
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   381
                # fine, so attempt to commit
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   382
                result = self.redirect_handler(req, ex)
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   383
            if req.cnx:
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   384
                txuuid = req.cnx.commit()
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   385
                commited = True
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   386
                if txuuid is not None:
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   387
                    req.data['last_undoable_transaction'] = txuuid
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   388
        ### error case
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   389
        except NotFound as ex:
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   390
            result = self.notfound_content(req)
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   391
            req.status_out = ex.status
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   392
        except ValidationError as ex:
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   393
            result = self.validation_error_handler(req, ex)
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   394
        except RemoteCallFailed as ex:
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   395
            result = self.ajax_error_handler(req, ex)
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   396
        except Unauthorized as ex:
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   397
            req.data['errmsg'] = req._('You\'re not authorized to access this page. '
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   398
                                       'If you think you should, please contact the site administrator.')
10604
d4bf85db41f2 [py3k] import HTTP client constants and exceptions using six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10565
diff changeset
   399
            req.status_out = http_client.FORBIDDEN
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   400
            result = self.error_handler(req, ex, tb=False)
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   401
        except Forbidden as ex:
8602
d066ba3bb07d [web] add a Forbidden exception
David Douard <david.douard@logilab.fr>
parents: 8470
diff changeset
   402
            req.data['errmsg'] = req._('This action is forbidden. '
d066ba3bb07d [web] add a Forbidden exception
David Douard <david.douard@logilab.fr>
parents: 8470
diff changeset
   403
                                       'If you think it should be allowed, please contact the site administrator.')
10604
d4bf85db41f2 [py3k] import HTTP client constants and exceptions using six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10565
diff changeset
   404
            req.status_out = http_client.FORBIDDEN
8602
d066ba3bb07d [web] add a Forbidden exception
David Douard <david.douard@logilab.fr>
parents: 8470
diff changeset
   405
            result = self.error_handler(req, ex, tb=False)
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   406
        except (BadRQLQuery, RequestError) as ex:
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   407
            result = self.error_handler(req, ex, tb=False)
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   408
        ### pass through exception
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   409
        except DirectResponse:
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   410
            if req.cnx:
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   411
                req.cnx.commit()
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   412
            raise
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   413
        except (AuthenticationError, LogOut):
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   414
            # the rollback is handled in the finally
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   415
            raise
8560
fef0b8214fcf [web app] move set of status_out into validation_error_handler to ease readability
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8556
diff changeset
   416
        ### Last defense line
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   417
        except BaseException as ex:
10604
d4bf85db41f2 [py3k] import HTTP client constants and exceptions using six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10565
diff changeset
   418
            req.status_out = http_client.INTERNAL_SERVER_ERROR
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   419
            result = self.error_handler(req, ex, tb=True)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   420
        finally:
5865
af414723598d [publisher] avoid useless rollback after successful commit, which clutters debug logs and may also not be cost-free
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5721
diff changeset
   421
            if req.cnx and not commited:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   422
                try:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   423
                    req.cnx.rollback()
7815
2a164a9cf81c [exceptions] stop catching any exception in various places (closes #1942716)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7589
diff changeset
   424
                except Exception:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   425
                    pass # ignore rollback error at this point
8267
486386d9f836 [web] Exposes the undo feature to user through a undo-history view (closes #893940)
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 8190
diff changeset
   426
        self.add_undo_link_to_msg(req)
8390
637b934bc742 [app] turn these info into debug logs (this being too chatty for .info)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8312
diff changeset
   427
        self.debug('query %s executed in %s sec', req.relative_path(), clock() - tstart)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   428
        return result
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   429
8470
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   430
    # Error handlers
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   431
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   432
    def redirect_handler(self, req, ex):
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   433
        """handle redirect
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   434
        - comply to ex status
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   435
        - set header field
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   436
        - return empty content
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   437
        """
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   438
        self.debug('redirecting to %s', str(ex.location))
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   439
        req.headers_out.setHeader('location', str(ex.location))
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   440
        assert 300 <= ex.status < 400
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   441
        req.status_out = ex.status
10820
fef0ab4c4f94 [web/application] return bytes from redirect_handler and validation_error_handler
Julien Cristau <julien.cristau@logilab.fr>
parents: 10777
diff changeset
   442
        return b''
8470
a85e107947e6 [web app] handle Redirect raised during session establishment, as this may be used by eg openid authentication. Closes #2430018
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8466
diff changeset
   443
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   444
    def validation_error_handler(self, req, ex):
8594
001159e2e4f3 [validation api] properly use yams 0.36 validation error api and update message catalog. Follows bbe0d6985e59
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8560
diff changeset
   445
        ex.translate(req._) # translate messages using ui language
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   446
        if '__errorurl' in req.form:
4224
5998df006968 refactor form error handling:
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3408
diff changeset
   447
            forminfo = {'error': ex,
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   448
                        'values': req.form,
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   449
                        'eidmap': req.data.get('eidmap', {})
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   450
                        }
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: 5174
diff changeset
   451
            req.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
   452
            # 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
   453
            # 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
   454
            # 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
   455
            # messages.
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   456
            location = req.form['__errorurl'].rsplit('#', 1)[0]
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   457
            req.headers_out.setHeader('location', str(location))
10604
d4bf85db41f2 [py3k] import HTTP client constants and exceptions using six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10565
diff changeset
   458
            req.status_out = http_client.SEE_OTHER
10820
fef0ab4c4f94 [web/application] return bytes from redirect_handler and validation_error_handler
Julien Cristau <julien.cristau@logilab.fr>
parents: 10777
diff changeset
   459
            return b''
10604
d4bf85db41f2 [py3k] import HTTP client constants and exceptions using six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10565
diff changeset
   460
        req.status_out = http_client.CONFLICT
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   461
        return self.error_handler(req, ex, tb=False)
1426
379261551578 remove trailing spaces
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   462
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   463
    def error_handler(self, req, ex, tb=False):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   464
        excinfo = sys.exc_info()
8466
92c668170ef9 [web app] only log tb when explicitly asked
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8443
diff changeset
   465
        if tb:
92c668170ef9 [web app] only log tb when explicitly asked
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8443
diff changeset
   466
            self.exception(repr(ex))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   467
        req.set_header('Cache-Control', 'no-cache')
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   468
        req.remove_header('Etag')
8753
b61a7c6352f2 [web publish] in case of error, ensure proper http status is set and Content-disposition header is reseted. Closes #2553066
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8711
diff changeset
   469
        req.remove_header('Content-disposition')
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
   470
        req.reset_message()
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   471
        req.reset_headers()
8128
0a927fe4541b [controllers] deprecate JSonController and implement AjaxController / ajax-func registry (closes #2110265)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7990
diff changeset
   472
        if req.ajax_request:
8709
8dc0b8d92694 [web application] Fix missing self. in error_handler
Vincent Michel <vincent.michel@logilab.fr>
parents: 8602
diff changeset
   473
            return self.ajax_error_handler(req, ex)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   474
        try:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   475
            req.data['ex'] = ex
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   476
            if tb:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   477
                req.data['excinfo'] = excinfo
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
   478
            errview = self.vreg['views'].select('error', req)
882
75488a2a875e fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents: 871
diff changeset
   479
            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
   480
            content = self.vreg['views'].main_template(req, template, view=errview)
7815
2a164a9cf81c [exceptions] stop catching any exception in various places (closes #1942716)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7589
diff changeset
   481
        except Exception:
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
   482
            content = self.vreg['views'].main_template(req, 'error-template')
9428
946aded614f3 [web error] exception may not have a 'status' attribute, generating an AttributeError that hides the original error. Closes #3381670
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9355
diff changeset
   483
        if isinstance(ex, PublishException) and ex.status is not None:
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   484
            req.status_out = ex.status
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   485
        return content
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   486
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   487
    def add_undo_link_to_msg(self, req):
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   488
        txuuid = req.data.get('last_undoable_transaction')
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   489
        if txuuid is not None:
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   490
            msg = u'<span class="undo">[<a href="%s">%s</a>]</span>' %(
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   491
            req.build_url('undo', txuuid=txuuid), req._('undo'))
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   492
            req.append_to_redirect_message(msg)
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   493
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   494
    def ajax_error_handler(self, req, ex):
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   495
        req.set_header('content-type', 'application/json')
10604
d4bf85db41f2 [py3k] import HTTP client constants and exceptions using six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10565
diff changeset
   496
        status = http_client.INTERNAL_SERVER_ERROR
9428
946aded614f3 [web error] exception may not have a 'status' attribute, generating an AttributeError that hides the original error. Closes #3381670
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9355
diff changeset
   497
        if isinstance(ex, PublishException) and ex.status is not None:
946aded614f3 [web error] exception may not have a 'status' attribute, generating an AttributeError that hides the original error. Closes #3381670
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9355
diff changeset
   498
            status = ex.status
9727
33f6ad4c75a5 [web/ajax] don't override any status code with 500 in ajax_error_handler
Julien Cristau <julien.cristau@logilab.fr>
parents: 9659
diff changeset
   499
        if req.status_out < 400:
33f6ad4c75a5 [web/ajax] don't override any status code with 500 in ajax_error_handler
Julien Cristau <julien.cristau@logilab.fr>
parents: 9659
diff changeset
   500
            # don't overwrite it if it's already set
33f6ad4c75a5 [web/ajax] don't override any status code with 500 in ajax_error_handler
Julien Cristau <julien.cristau@logilab.fr>
parents: 9659
diff changeset
   501
            req.status_out = status
10740
59e89db3a67d [web] unicode → six.text_type
Julien Cristau <julien.cristau@logilab.fr>
parents: 10604
diff changeset
   502
        json_dumper = getattr(ex, 'dumps', lambda : json.dumps({'reason': text_type(ex)}))
10777
eabacd3c6f16 [web] CubicWebPublisher.ajax_error_handler must return bytes
Julien Cristau <julien.cristau@logilab.fr>
parents: 10744
diff changeset
   503
        return json_dumper().encode('utf-8')
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   504
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   505
    # special case handling
1426
379261551578 remove trailing spaces
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   506
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   507
    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
   508
        return self.vreg['views'].main_template(req, 'login')
1426
379261551578 remove trailing spaces
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   509
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   510
    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
   511
        return self.vreg['views'].main_template(req, 'loggedout')
1426
379261551578 remove trailing spaces
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   512
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   513
    def notfound_content(self, req):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   514
        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
   515
        view = self.vreg['views'].select('404', req)
882
75488a2a875e fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents: 871
diff changeset
   516
        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
   517
        return self.vreg['views'].main_template(req, template, view=view)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   518
8312
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   519
    # template stuff
6c2119509fac [web] Move request handling logic into cubicweb application. (closes #2200684)
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 8311
diff changeset
   520
882
75488a2a875e fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents: 871
diff changeset
   521
    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
   522
        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
   523
        if template not in self.vreg['views']:
882
75488a2a875e fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents: 871
diff changeset
   524
            template = 'main-template'
75488a2a875e fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents: 871
diff changeset
   525
        return template
1426
379261551578 remove trailing spaces
sylvain.thenault@logilab.fr
parents: 1132
diff changeset
   526
7083
b8e35cde46e9 help pylint by explicitely defining some attributes
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 6791
diff changeset
   527
    # these are overridden by set_log_methods below
b8e35cde46e9 help pylint by explicitely defining some attributes
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 6791
diff changeset
   528
    # only defining here to prevent pylint from complaining
b8e35cde46e9 help pylint by explicitely defining some attributes
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 6791
diff changeset
   529
    info = warning = error = critical = exception = debug = lambda msg,*a,**kw: None
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   530
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   531
set_log_methods(CubicWebPublisher, LOGGER)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   532
set_log_methods(CookieSessionHandler, LOGGER)