Unable to attach Serial Download to Product

		switch($filemode) {
			case 'path':
				$file->file_path = $formData['filepath'];

				if(strpos($file->file_path, '..') !== false)
					return false;

				$firstChar = substr($file->file_path,0,1);
				if(substr($file->file_path, 0, 7) != 'http://' && substr($file->file_path, 0, 8) != 'https://' && !in_array($firstChar, array('#','@'))) {
					$config =& hikashop_config();
					$clean_filename = JPath::clean($file->file_path);
					$secure_path = $config->get('uploadsecurefolder');
					if((JPATH_ROOT != '') && strpos($clean_filename, JPath::clean(JPATH_ROOT)) !== 0 && strpos($clean_filename, JPath::clean($secure_path)) !== 0)
						return false;
				}
				break;