disp.php

<?php
    /**
     * Delivers the content of the requested file.
     * 
     * @param string $sObjectType The type of the requested file.
     * @param string $sObjectUrl  The file url.
     * 
     * @return null
     */
    public function getFile($sObjectType, $sObjectUrl)
    {
        $oObject = $this->_getFileSettingsByType($sObjectType, $sObjectUrl);

        if ($oObject === null) {
            return null;
        }
        
        $sFile = null;
        
        if ($this->getAccessHandler()->checkObjectAccess($oObject->type, $oObject->id)) {
            $sFile = $oObject->file;
        } elseif ($oObject->isImage) {
            $sFile = UAM_REALPATH.'gfx/noAccessPic.png';
        } else {
            wp_die(TXT_UAM_NO_RIGHTS);
        }
        
        //Deliver content
        if (file_exists($sFile)) {
            $sFileName = basename($sFile);
            
            /*
             * This only for compatibility
             * mime_content_type has been deprecated as the PECL extension file info
             * provides the same functionality (and more) in a much cleaner way.
             */
            $sFileExt = strtolower(array_pop(explode('.', $sFileName)));
            $aMimeTypes = $this->_getMimeTypes();

            if (function_exists('finfo_open')) {
                $sFileInfo = finfo_open(FILEINFO_MIME);
                $sFileMimeType = finfo_file($sFileInfo, $sFile);
                finfo_close($sFileInfo);
            } elseif (function_exists('mime_content_type')) {
                $sFileMimeType = mime_content_type($sFile);
            } elseif (isset($aMimeTypes[$sFileExt])) {
                $sFileMimeType = $aMimeTypes[$sFileExt];
            } else {
                $sFileMimeType = 'application/octet-stream';
            }
            
            header('Content-Description: File Transfer');
            header('Content-Type: '.$sFileMimeType);
            
            if (!$oObject->isImage) {
                $sBaseName = str_replace(' ', '_', basename($sFile));
                header('Content-Disposition: attachment; filename="'.$sBaseName.'"');
            }
           
            header('Content-Transfer-Encoding: binary');
            header('Content-Length: '.filesize($sFile));

            $aUamOptions = $this->getAdminOptions();
            
            if ($aUamOptions['download_type'] == 'fopen'
                && !$oObject->isImage
            ) {
                $oHandler = fopen($sFile, 'r');
                
                //TODO find better solution (prevent '\n' / '0A')
                ob_clean();
                flush();
                
                while (!feof($oHandler)) {
                    if (!ini_get('safe_mode')) {
                        set_time_limit(30);
                    }

                    echo fread($oHandler, 1024);
                }
                                
                exit;
            } else {
                ob_clean();
                flush();
                readfile($sFile);
                exit;
            }
        } else {
            wp_die(TXT_UAM_FILE_NOT_FOUND_ERROR);
        }
    }