root/trackback/files/lib/system/event/listener/ThreadAddFormTrackbackListener.class.php @ 78

<?php
// WCF include
require_once(WCF_DIR.'lib/system/event/EventListener.class.php');

// Utils
require_once(WBB_DIR.'lib/util/TrackbackUtil.class.php');

/**
 * Handles activation of the trackback in threadcreation
 *
 * @author      Torben Brodt
 * @package     de.easy-coding.wbb.trackback
 * @license     GNU General Public License <http://opensource.org/licenses/gpl-3.0.html>
 */
class ThreadAddFormTrackbackListener implements EventListener {
        protected $eventObj;
        protected $className;

        protected $hasTrackback = 0;

        /**
         * @see EventListener::execute()
         */
        public function execute($eventObj, $className, $eventName) {    
                $this->eventObj = $eventObj;
                $this->className = $className;

                switch ($eventName) {
                        case 'readData':
                                $this->readData();
                                break;
                        case 'readFormParameters':
                                $this->readFormParameters();
                                break;
                        case 'assignVariables':
                                $this->assignVariables();
                                break;
                        case 'saved':
                                $this->saved();
                                break;
                }
        }

        /**
         * @see Form::readData()
         */
        protected function readData () {
                $this->hasTrackback = $this->eventObj->post->hasTrackback;
        }

        /**
         * @see Form::readFormParameters()
         */
        protected function readFormParameters () {
                if (isset($_REQUEST['hasTrackback'])) $this->hasTrackback = intval($_REQUEST['hasTrackback']);
        }
        
        /**
         * @see Form::assignVariables()
         */
        protected function assignVariables () {
                WBBCore::getTPL()->assign('hasTrackback', $this->hasTrackback);
                WBBCore::getTPL()->append('additionalSettings', WBBCore::getTPL()->fetch('postTrackbackSetting'));
        }

        /**
         * @see Form::saved()
         */
        protected function saved () {
                $postID = 0;
                
                switch ($this->className) {
                        case 'ThreadAddForm':
                                $postID = $this->eventObj->newThread->firstPostID;
                                $this->data = $this->eventObj->newThread->firstPostID;
                                break;
                        case 'PostEditForm':
                                $postID = $this->eventObj->postID;
                                break;
                }
                
                // send trackbacks
                $this->sendTrackbackData($postID);

                // UPDATE
                $sql = "UPDATE          wbb".WBB_N."_post
                        SET             hasTrackback    = {$this->hasTrackback}
                        WHERE           postID          = {$postID};";

                WBBCore::getDB()->sendQuery($sql);
        }
        
        /**
         * fetch trackback data from database (maybe an event would be faster)
         * @param postID
         */
        protected function sendTrackbackData($postID) {
                // fetch data
                $row = TrackbackUtil::getPost($postID);
                
                $patterns = array();
                $patterns[] = "#\[url\]([\w]+?://([\w\#$%&~/.\-;:=,?@\]+]+|\[(?!url=))*?)\[/url\]#is";
                $patterns[] = "#\[url=([\w]+?://[\w\#$%&~/.\-;:=,?@\[\]+]*?)\]([^?\n\r\t].*?)\[/url\]#is";
                
                // fetch current postings
                $urls = array();
                foreach($patterns as $p) {
                        preg_match_all($p, $this->eventObj->text, $res);
                        $urls = array_merge($urls, $res[1]);
                }

                // fetch made postings
                $oldurls = array();
                $sql = "SELECT          alienURL
                        FROM            wbb".WBB_N."_trackbackLog
                        WHERE           postID = ".$postID;
                $result = WCF::getDB()->sendQuery($sql);
                while ($row = WCF::getDB()->fetchArray($result)) {
                        $oldurls[] = $row['alienURL'];
                }

                // send pings
                foreach(array_diff($urls, $oldurls) as $url) {
                        TrackbackUtil::trackAndPing($postID, $url, PAGE_TITLE, $row['username'], $row['url'], $row['topic'], substr($row['firstPostPreview'],0,255));
                }
        }
}
?>