public function init()
 {
     if (isset($this->context->employee) && $this->context->employee->isLoggedBack() && Tools::getValue('file')) {
         // Admin can directly access to file
         $filename = Tools::getValue('file');
         if (!Validate::isSha1($filename)) {
             die(Tools::displayError());
         }
         $file = _PS_DOWNLOAD_DIR_ . strval(preg_replace('/\\.{2,}/', '.', $filename));
         $filename = ProductDownload::getFilenameFromFilename(Tools::getValue('file'));
         if (empty($filename)) {
             $newFileName = Tools::getValue('filename');
             if (!empty($newFileName)) {
                 $filename = Tools::getValue('filename');
             } else {
                 $filename = 'file';
             }
         }
         if (!file_exists($file)) {
             Tools::redirect('index.php');
         }
     } else {
         if (!($key = Tools::getValue('key'))) {
             $this->displayCustomError('Invalid key.');
         }
         Tools::setCookieLanguage();
         if (!$this->context->customer->isLogged() && !Tools::getValue('secure_key') && !Tools::getValue('id_order')) {
             Tools::redirect('index.php?controller=authentication&back=get-file.php&key=' . $key);
         } else {
             if (!$this->context->customer->isLogged() && Tools::getValue('secure_key') && Tools::getValue('id_order')) {
                 $order = new Order((int) Tools::getValue('id_order'));
                 if (!Validate::isLoadedObject($order)) {
                     $this->displayCustomError('Invalid key.');
                 }
                 if ($order->secure_key != Tools::getValue('secure_key')) {
                     $this->displayCustomError('Invalid key.');
                 }
             }
         }
         /* Key format: <sha1-filename>-<hashOrder> */
         $tmp = explode('-', $key);
         if (count($tmp) != 2) {
             $this->displayCustomError('Invalid key.');
         }
         $filename = $tmp[0];
         $hash = $tmp[1];
         if (!($info = OrderDetail::getDownloadFromHash($hash))) {
             $this->displayCustomError('This product does not exist in our store.');
         }
         /* Product no more present in catalog */
         if (!isset($info['id_product_download']) || empty($info['id_product_download'])) {
             $this->displayCustomError('This product has been deleted.');
         }
         if (!file_exists(_PS_DOWNLOAD_DIR_ . $filename)) {
             $this->displayCustomError('This file no longer exists.');
         }
         if (isset($info['product_quantity_refunded']) && isset($info['product_quantity_return']) && ($info['product_quantity_refunded'] > 0 || $info['product_quantity_return'] > 0)) {
             $this->displayCustomError('This product has been refunded.');
         }
         $now = time();
         $product_deadline = strtotime($info['download_deadline']);
         if ($now > $product_deadline && $info['download_deadline'] != '0000-00-00 00:00:00') {
             $this->displayCustomError('The product deadline is in the past.');
         }
         $customer_deadline = strtotime($info['date_expiration']);
         if ($now > $customer_deadline && $info['date_expiration'] != '0000-00-00 00:00:00') {
             $this->displayCustomError('Expiration date has passed, you cannot download this product');
         }
         if ($info['download_nb'] >= $info['nb_downloadable'] && $info['nb_downloadable']) {
             $this->displayCustomError('You have reached the maximum number of allowed downloads.');
         }
         /* Access is authorized -> increment download value for the customer */
         OrderDetail::incrementDownload($info['id_order_detail']);
         $file = _PS_DOWNLOAD_DIR_ . $info['filename'];
         $filename = $info['display_filename'];
     }
     /* Detect mime content type */
     $mimeType = false;
     if (function_exists('finfo_open')) {
         $finfo = @finfo_open(FILEINFO_MIME);
         $mimeType = @finfo_file($finfo, $file);
         @finfo_close($finfo);
     } else {
         if (function_exists('mime_content_type')) {
             $mimeType = @mime_content_type($file);
         } else {
             if (function_exists('exec')) {
                 $mimeType = trim(@exec('file -b --mime-type ' . escapeshellarg($file)));
                 if (!$mimeType) {
                     $mimeType = trim(@exec('file --mime ' . escapeshellarg($file)));
                 }
                 if (!$mimeType) {
                     $mimeType = trim(@exec('file -bi ' . escapeshellarg($file)));
                 }
             }
         }
     }
     if (empty($mimeType)) {
         $bName = basename($filename);
         $bName = explode('.', $bName);
         $bName = strtolower($bName[count($bName) - 1]);
         $mimeTypes = array('ez' => 'application/andrew-inset', 'hqx' => 'application/mac-binhex40', 'cpt' => 'application/mac-compactpro', 'doc' => 'application/msword', 'oda' => 'application/oda', 'pdf' => 'application/pdf', 'ai' => 'application/postscript', 'eps' => 'application/postscript', 'ps' => 'application/postscript', 'smi' => 'application/smil', 'smil' => 'application/smil', 'wbxml' => 'application/vnd.wap.wbxml', 'wmlc' => 'application/vnd.wap.wmlc', 'wmlsc' => 'application/vnd.wap.wmlscriptc', 'bcpio' => 'application/x-bcpio', 'vcd' => 'application/x-cdlink', 'pgn' => 'application/x-chess-pgn', 'cpio' => 'application/x-cpio', 'csh' => 'application/x-csh', 'dcr' => 'application/x-director', 'dir' => 'application/x-director', 'dxr' => 'application/x-director', 'dvi' => 'application/x-dvi', 'spl' => 'application/x-futuresplash', 'gtar' => 'application/x-gtar', 'hdf' => 'application/x-hdf', 'js' => 'application/x-javascript', 'skp' => 'application/x-koan', 'skd' => 'application/x-koan', 'skt' => 'application/x-koan', 'skm' => 'application/x-koan', 'latex' => 'application/x-latex', 'nc' => 'application/x-netcdf', 'cdf' => 'application/x-netcdf', 'sh' => 'application/x-sh', 'shar' => 'application/x-shar', 'swf' => 'application/x-shockwave-flash', 'sit' => 'application/x-stuffit', 'sv4cpio' => 'application/x-sv4cpio', 'sv4crc' => 'application/x-sv4crc', 'tar' => 'application/x-tar', 'tcl' => 'application/x-tcl', 'tex' => 'application/x-tex', 'texinfo' => 'application/x-texinfo', 'texi' => 'application/x-texinfo', 't' => 'application/x-troff', 'tr' => 'application/x-troff', 'roff' => 'application/x-troff', 'man' => 'application/x-troff-man', 'me' => 'application/x-troff-me', 'ms' => 'application/x-troff-ms', 'ustar' => 'application/x-ustar', 'src' => 'application/x-wais-source', 'xhtml' => 'application/xhtml+xml', 'xht' => 'application/xhtml+xml', 'zip' => 'application/zip', 'au' => 'audio/basic', 'snd' => 'audio/basic', 'mid' => 'audio/midi', 'midi' => 'audio/midi', 'kar' => 'audio/midi', 'mpga' => 'audio/mpeg', 'mp2' => 'audio/mpeg', 'mp3' => 'audio/mpeg', 'aif' => 'audio/x-aiff', 'aiff' => 'audio/x-aiff', 'aifc' => 'audio/x-aiff', 'm3u' => 'audio/x-mpegurl', 'ram' => 'audio/x-pn-realaudio', 'rm' => 'audio/x-pn-realaudio', 'rpm' => 'audio/x-pn-realaudio-plugin', 'ra' => 'audio/x-realaudio', 'wav' => 'audio/x-wav', 'pdb' => 'chemical/x-pdb', 'xyz' => 'chemical/x-xyz', 'bmp' => 'image/bmp', 'gif' => 'image/gif', 'ief' => 'image/ief', 'jpeg' => 'image/jpeg', 'jpg' => 'image/jpeg', 'jpe' => 'image/jpeg', 'png' => 'image/png', 'tiff' => 'image/tiff', 'tif' => 'image/tif', 'djvu' => 'image/vnd.djvu', 'djv' => 'image/vnd.djvu', 'wbmp' => 'image/vnd.wap.wbmp', 'ras' => 'image/x-cmu-raster', 'pnm' => 'image/x-portable-anymap', 'pbm' => 'image/x-portable-bitmap', 'pgm' => 'image/x-portable-graymap', 'ppm' => 'image/x-portable-pixmap', 'rgb' => 'image/x-rgb', 'xbm' => 'image/x-xbitmap', 'xpm' => 'image/x-xpixmap', 'xwd' => 'image/x-windowdump', 'igs' => 'model/iges', 'iges' => 'model/iges', 'msh' => 'model/mesh', 'mesh' => 'model/mesh', 'silo' => 'model/mesh', 'wrl' => 'model/vrml', 'vrml' => 'model/vrml', 'css' => 'text/css', 'html' => 'text/html', 'htm' => 'text/html', 'asc' => 'text/plain', 'txt' => 'text/plain', 'rtx' => 'text/richtext', 'rtf' => 'text/rtf', 'sgml' => 'text/sgml', 'sgm' => 'text/sgml', 'tsv' => 'text/tab-seperated-values', 'wml' => 'text/vnd.wap.wml', 'wmls' => 'text/vnd.wap.wmlscript', 'etx' => 'text/x-setext', 'xml' => 'text/xml', 'xsl' => 'text/xml', 'mpeg' => 'video/mpeg', 'mpg' => 'video/mpeg', 'mpe' => 'video/mpeg', 'qt' => 'video/quicktime', 'mov' => 'video/quicktime', 'mxu' => 'video/vnd.mpegurl', 'avi' => 'video/x-msvideo', 'movie' => 'video/x-sgi-movie', 'ice' => 'x-conference-xcooltalk');
         if (isset($mimeTypes[$bName])) {
             $mimeType = $mimeTypes[$bName];
         } else {
             $mimeType = 'application/octet-stream';
         }
     }
     /* Set headers for download */
     header('Content-Transfer-Encoding: binary');
     header('Content-Type: ' . $mimeType);
     header('Content-Length: ' . filesize($file));
     header('Content-Disposition: attachment; filename="' . $filename . '"');
     ob_end_flush();
     $fp = fopen($file, 'rb');
     while (!feof($fp)) {
         echo fgets($fp, 16384);
     }
     exit;
 }
        displayError('This file no longer exists.');
    }
    $now = time();
    $product_deadline = strtotime($info['download_deadline']);
    if ($now > $product_deadline and $info['download_deadline'] != '0000-00-00 00:00:00') {
        displayError('The product deadline is in the past.');
    }
    $customer_deadline = strtotime($info['date_expiration']);
    if ($now > $customer_deadline and $info['date_expiration'] != '0000-00-00 00:00:00') {
        displayError('Expiration date exceeded');
    }
    if ($info['download_nb'] >= $info['nb_downloadable'] and $info['nb_downloadable']) {
        displayError('You have reached the maximum number of allowed downloads.');
    }
    /* Access is authorized -> increment download value for the customer */
    OrderDetail::incrementDownload($info['id_order_detail']);
    $file = _PS_DOWNLOAD_DIR_ . $info['physically_filename'];
    $filename = $info['display_filename'];
}
/* Detect mime content type */
$mimeType = false;
if (function_exists('finfo_open')) {
    $finfo = @finfo_open(FILEINFO_MIME);
    $mimeType = @finfo_file($finfo, $file);
    @finfo_close($finfo);
} elseif (function_exists('mime_content_type')) {
    $mimeType = @mime_content_type($file);
} elseif (function_exists('exec')) {
    $mimeType = trim(@exec('file -b --mime-type ' . escapeshellarg($file)));
    if (!$mimeType) {
        $mimeType = trim(@exec('file --mime ' . escapeshellarg($file)));