[CWEP002] refactor rql read security checking
Split 'check_read_perms' into 'check_relations_perms' which checks relations
'read' permissions and 'get_local_checks' which build dictionary of local
security checks (rql expression) for variables.
This allows to check relations 'read' permissions earlier in the process and so
to prepare insertion of the rql rewriter: we want to check permissions of the
computed relation, not permissions of relations introduced by the associated
rule, to conform to the CWEP.
Related to #3546717
# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
"""the Bookmark entity type for internal links
"""
__docformat__ = "restructuredtext en"
_ = unicode
from yams.buildobjs import EntityType, RelationType, SubjectRelation, String
from cubicweb.schema import RRQLExpression
class Bookmark(EntityType):
"""bookmarks are used to have user's specific internal links"""
__permissions__ = {
'read': ('managers', 'users', 'guests',),
'add': ('managers', 'users',),
'delete': ('managers', 'owners',),
'update': ('managers', 'owners',),
}
title = String(required=True, maxsize=128, internationalizable=True)
path = String(maxsize=2048, required=True,
description=_("relative url of the bookmarked page"))
bookmarked_by = SubjectRelation('CWUser',
description=_("users using this bookmark"))
class bookmarked_by(RelationType):
__permissions__ = {'read': ('managers', 'users', 'guests',),
# test user in users group to avoid granting permission to anonymous user
'add': ('managers', RRQLExpression('O identity U, U in_group G, G name "users"')),
'delete': ('managers', RRQLExpression('O identity U, U in_group G, G name "users"')),
}