root/downloadDatabase/files/lib/page/DownloadDBFileDownloadPage.class.php @ 415

<?php

// wcf imports
require_once(WCF_DIR.'lib/page/AbstractPage.class.php');
require_once(WCF_DIR.'lib/data/downloadDB/DownloadDBDataEditor.class.php');

/**
 * Download Database Datei Download
 *
 * @author              Robert "Tatzelwurm" Hempel
 * @copyright   2007/2008 INSIDE das Hrspiel
 * @license     GNU LGPL http://www.gnu.org/licenses/lgpl.txt
 * @package             de.inside.wcf.DownloadDatabase
 */

class DownloadDBFileDownloadPage extends AbstractPage {
        
        public $dataID;
        private $fileName;
        private $fileType;
        private $link;
        
        public function readParameters() {
                parent :: readParameters();
                if (isset($_REQUEST['dataID'])) $this->dataID = intval($_REQUEST['dataID']);
                if (!$this->dataID){
                        require_once(WCF_DIR.'lib/system/exception/NamedUserException.class.php');
                        throw new NamedUserException(WCF::getLanguage()->get('wcf.dldb.wrongid'));
                        exit;
                }
                WCF::getCache()->addResource('dldbData',
                        WCF_DIR.'cache/cache.dldbData.php',
                        WCF_DIR.'lib/system/cache/CacheBuilderDLDBData.class.php');
        }

        public function show() {
                $this->readDaten();
                // Anzahl der Downloads erhöhen
                $sql = "UPDATE wcf".WCF_N."_dldb_data
                                SET downloads = downloads + 1
                                WHERE `dataID` = ".$this->dataID;
                $row = WCF::getDB()->registerShutdownUpdate($sql);
                // reset cache
                WCF::getCache()->clear(WCF_DIR.'cache/', 'cache.dldbData.php');
                if (!$this->fileType) {
                        if (FileUtil::isURL($this->link)) {
                                HeaderUtil::redirect($this->link,false);
                                exit;
                        } else {
                                $link = FileUtil::getRealPath(RELATIVE_WCF_DIR.$this->link);
                                $type = 'application/unknown';
                        }
                } else {
                        $dataset = new downloadDBDataEditor($this->dataID);
                        $link = FileUtil::getRealPath(RELATIVE_WCF_DIR.$dataset->getURL());
                        $type = $this->fileType;
                }
                // Set Download Infos
                @ header('Content-Description: File Transfer');
                @ header('Content-Type: '. $type);
                @ header('Content-disposition: attachment; filename="' . $this->fileName . '"');
                @ header('Content-Length: ' . filesize($link));
                @ header('Pragma: no-cache');
                @ header('Expires: 0');
                // Start Download
                @readfile($link);
        }
        
        protected function readDaten() {
                // Cache lesen
                $data = WCF::getCache()->get('dldbData');
                foreach ($data as $daten) {
                        if ($daten['dataID'] == $this->dataID) {
                                $this->fileType = $daten['mimeType'];
                                $this->fileName = $daten['fileName'];
                                $this->link             = $daten['link'];
                                // Kontrolle der Zugangsberechtigung;
                                $IDs = explode(',',$daten['groupcheck']);
                                $daten['canViewCat'] = false;
                                foreach ($IDs as $gruppe) {
                                        if (in_array($gruppe, WCF::getUser()->getGroupIDs())) { 
                                                $daten['canViewCat'] = true;
                                        }
                                }
                                if ($daten['canViewCat'] != true){
                                        require_once(WCF_DIR.'lib/system/exception/PermissionDeniedException.class.php');
                                        throw new PermissionDeniedException();
                                }
                        }
                }
        }
}
?>