public function __invoke(HttpRequest $request, HttpResponse $response)
{
$path = $this->path . substr($request->getUrl(), 1);
$fn = $this->filter;
if ($fn($path)) {
$response->setContentEncoding(HttpResponse::GZIP);
if (is_dir($path) && $this->hasIndex) {
// serve the index of the specified path
$fn = $this->index;
$response->setContentType('text/html');
$response->setBody($fn($path));
} else {
if (is_file($path)) {
$response->setContentType($this->finfo->file($path, FILEINFO_MIME_TYPE));
$response->setBody(fopen($path, 'r'));
}
}
}
}
