class.ilCronWebResourceCheck.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2001 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. |
        +-----------------------------------------------------------------------------+
*/


class ilCronWebResourceCheck
{
        function ilCronWebResourceCheck()
        {
                global $ilLog,$ilDB;

                $this->log =& $ilLog;
                $this->db =& $ilDB;
        }

        function check()
        {
                global $ilObjDataCache,$ilUser;

                include_once'./classes/class.ilLinkChecker.php';


                foreach(ilUtil::_getObjectsByOperations('webr','write',$ilUser->getId(),-1) as $node)
                {
                        if(!is_object($tmp_webr =& ilObjectFactory::getInstanceByRefId($node,false)))
                        {
                                continue;
                        }

                        $tmp_webr->initLinkResourceItemsObject();
                        
                        // Set all link to valid. After check invalid links will be set to invalid

                        $link_checker =& new ilLinkChecker($this->db);
                        $link_checker->setMailStatus(true);
                        $link_checker->setCheckPeriod($this->__getCheckPeriod());
                        $link_checker->setObjId($tmp_webr->getId());


                        $tmp_webr->items_obj->updateValidByCheck($this->__getCheckPeriod());
                        foreach($link_checker->checkWebResourceLinks() as $invalid)
                        {
                                $tmp_webr->items_obj->readItem($invalid['page_id']);
                                $tmp_webr->items_obj->setActiveStatus(false);
                                $tmp_webr->items_obj->setValidStatus(false);
                                $tmp_webr->items_obj->setDisableCheckStatus(true);
                                $tmp_webr->items_obj->setLastCheckDate(time());
                                $tmp_webr->items_obj->update(false);
                        }
                        
                        $tmp_webr->items_obj->updateLastCheck($this->__getCheckPeriod());

                        foreach($link_checker->getLogMessages() as $message)
                        {
                                $this->log->write($message);
                        }
                }
                return true;
        }


        function __getCheckPeriod()
        {
                global $ilias;

                switch($ilias->getSetting('cron_web_resource_check'))
                {
                        case 1:
                                $period = 24 * 60 * 60;
                                break;

                        case 2:
                                $period = 7 * 24 * 60 * 60;
                                break;

                        case 3:
                                $period = 30 * 7 * 24 * 60 * 60;
                                break;

                        case 4:
                                $period = 4  * 30 * 7 * 24 * 60 * 60;
                                break;

                        default:
                                $period = 0;
                }
                return $period;
        }
}
?>