private function doNonRangeResponse($fileInfo, Response $response)
{
$this->assignCommonHeaders($fileInfo, $response);
$response->setHeader("Content-Length", (string) $fileInfo->size);
$response->setHeader("Content-Type", $this->selectMimeTypeFromPath($fileInfo->path));
return isset($fileInfo->buffer) ? $response->end($fileInfo->buffer) : $this->finalizeResponse($response, $fileInfo);
}