Services/LDAP/classes/class.ilLDAPCronSynchronization.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
        |                                                                             |
        | 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 2              |
        | 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, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/

include_once('Services/LDAP/classes/class.ilLDAPServer.php');
include_once('Services/LDAP/classes/class.ilLDAPQuery.php');
include_once('Services/LDAP/classes/class.ilLDAPAttributeToUser.php');


class ilLDAPCronSynchronization
{
        private $current_server = null;
        private $ldap_query = null;
        private $log = null;
        
        public function __construct()
        {
                global $ilLog;
                
                $this->log = $ilLog;
        }
        
        public function start()
        {
                foreach(ilLDAPServer::_getCronServerIds() as $server_id)
                {
                        try
                        {
                                $this->current_server = new ilLDAPServer($server_id);
                                $this->current_server->doConnectionCheck();
                                $this->log->write("LDAP: starting user synchronization for ".$this->current_server->getName());
                                
                                $this->ldap_query = new ilLDAPQuery($this->current_server);
                                $this->ldap_query->bind(IL_LDAP_BIND_DEFAULT);
                                
                                if(is_array($users = $this->ldap_query->fetchUsers()))
                                {
                                        // Deactivate ldap users that are not in the list
                                        $this->deactivateUsers($users);
                                }
                        
                                if(count($users))
                                {       
                                        $this->log->write("LDAP: Starting update/creation of users ...");
                                        $this->ldap_to_ilias = new ilLDAPAttributeToUser($this->current_server);
                                        $this->ldap_to_ilias->setUserData($users);
                                        $this->ldap_to_ilias->refresh();
                                        $this->log->write("LDAP: Finished update/creation");
                                }
                                else
                                {
                                        $this->log->write("LDAP: No users for update/create. Aborting.");
                                }
                        }
                        catch(ilLDAPQueryException $exc)
                        {
                                $this->log->write($exc->getMessage());
                        }
                }
        }
        
        private function deactivateUsers($a_ldap_users)
        {
                include_once './Services/User/classes/class.ilObjUser.php';
                
                foreach($ext = ilObjUser::_getExternalAccountsByAuthMode('ldap',true) as $usr_id => $external_account)
                {
                        if(!array_key_exists($external_account,$a_ldap_users))
                        {
                                $inactive[] = $usr_id;
                        }
                }
                if(count($inactive))
                {
                        ilObjUser::_toggleActiveStatusOfUsers($inactive,false);
                        $this->log->write('LDAP: Found '.count($inactive).' inactive users.');
                }
                else
                {
                        $this->log->write('LDAP: No inactive users found');
                }
        }
}


?>