Coverage for ipalib/plugins/virtual : 82%

# Authors: 

#   Rob Crittenden <rcritten@redhat.com> 

# 

# Copyright (C) 2009  Red Hat 

# see file 'COPYING' for use and warranty information 

# 

# This program is free software; you can redistribute it and/or modify 

# it under the terms of the GNU General Public License as published by 

# the Free Software Foundation, either version 3 of the License, or 

# (at your option) any later version. 

# 

# This program 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 General Public License for more details. 

# 

# You should have received a copy of the GNU General Public License 

# along with this program.  If not, see <http://www.gnu.org/licenses/>. 

""" 

Base classes for non-LDAP backend plugins. 

""" 

from ipalib import api 

from ipalib import Command 

from ipalib import errors 

from ipapython.dn import DN 

from ipalib.text import _ 

class VirtualCommand(Command): 

    """ 

    A command that doesn't use the LDAP backend but wants to use the 

    LDAP access control system to make authorization decisions. 

    The class variable operation is the commonName attribute of the 

    entry to be tested against. 

    In advance, you need to create an entry of the form: 

        cn=<operation>, api.env.container_virtual, api.env.basedn 

    Ex. 

        cn=request certificate, cn=virtual operations,cn=etc, dc=example, dc=com 

    """ 

    operation = None 

    def check_access(self, operation=None): 

        """ 

        Perform an LDAP query to determine authorization. 

        This should be executed before any actual work is done. 

        """ 

        if self.operation is None and operation is None: 

            raise errors.ACIError(info=_('operation not defined')) 

        if operation is None: 

            operation = self.operation 

        ldap = self.api.Backend.ldap2 

        self.log.debug("IPA: virtual verify %s" % operation) 

        operationdn = DN(('cn', operation), self.api.env.container_virtual, self.api.env.basedn) 

        try: 

            if not ldap.can_write(operationdn, "objectclass"): 

                raise errors.ACIError( 

                    info=_('not allowed to perform this command')) 

        except errors.NotFound: 

            raise errors.ACIError(info=_('No such virtual command')) 

        return True