/** * Streams the file using readfile * * @param IOutput $output a small wrapper that handles output * @since 8.1.0 */ public function callback(IOutput $output) { // handle caching if ($output->getHttpResponseCode() !== Http::STATUS_NOT_MODIFIED) { if (!file_exists($this->filePath)) { $output->setHttpResponseCode(Http::STATUS_NOT_FOUND); } elseif ($output->setReadfile($this->filePath) === false) { $output->setHttpResponseCode(Http::STATUS_BAD_REQUEST); } } }