class.ilWebResourceCronLinkCheck.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once "Services/Cron/classes/class.ilCronJob.php";

class ilWebResourceCronLinkCheck extends ilCronJob
{       
        public function getId()
        {
                return "webr_link_check";
        }
        
        public function getTitle()
        {
                global $lng;
                
                return $lng->txt("check_web_resources");
        }
        
        public function getDescription()
        {
                global $lng;
                
                return $lng->txt("check_web_resources_desc");
        }
        
        public function getDefaultScheduleType()
        {
                return self::SCHEDULE_TYPE_DAILY;
        }
        
        public function getDefaultScheduleValue()
        {
                return;
        }
        
        public function hasAutoActivation()
        {
                return false;
        }
        
        public function hasFlexibleSchedule()
        {
                return true;
        }
        
        public function run()
        {               
                global $ilLog, $ilUser, $ilDB;
                
                $status = ilCronJobResult::STATUS_NO_ACTION;
        
                include_once'./Services/LinkChecker/classes/class.ilLinkChecker.php';

                $counter = 0;
                foreach(ilUtil::_getObjectsByOperations('webr','write',$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

                        $link_checker =& new ilLinkChecker($ilDB);
                        $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)
                        {
                                $ilLog->write($message);
                                $counter++;
                        }
                }
        
                if($counter)
                {
                        $status = ilCronJobResult::STATUS_OK;
                }               
                $result = new ilCronJobResult();
                $result->setStatus($status);            
                return $result;
        }
        
        function __getCheckPeriod()
        {               
                switch($this->getScheduleType())
                {
                        case self::SCHEDULE_TYPE_DAILY:
                                $period = 24 * 60 * 60;
                                break;

                        case self::SCHEDULE_TYPE_WEEKLY:
                                $period = 7 * 24 * 60 * 60;
                                break;

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

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

                        default:
                                $period = 0;
                }
                return $period;
        }
        
        public function activationWasToggled($a_currently_active)
        {
                global $ilSetting;
                                
                // propagate cron-job setting to object setting
                $ilSetting->set("cron_web_resource_check", (bool)$a_currently_active);          
        }
}

?>