Pipe\Middleware::handle PHP Method

    function handle(Request $request, $type = HttpFoundation::MASTER_REQUEST, $catch = true)
    {
        $pathinfo = $request->getPathInfo();
        if (preg_match('{^/_pipe/(.+)$}', $pathinfo, $matches)) {
            $path = $matches[1];
            if (!$path or !($asset = $this->env->find($path, array('bundled' => true)))) {
                $this->log->error("pipe: Asset '{$path}' not found");
                return new Response('Not Found', 404);
            }
            $lastModified = new \DateTime();
            $lastModified->setTimestamp($asset->getLastModified());
            $response = new Response();
            $response->setPublic();
            $response->setLastModified($lastModified);
            if ($response->isNotModified($request)) {
                $this->log->info("pipe: 302 {$path}");
                return $response;
            }
            $start = microtime(true);
            $response->setContent($asset->getBody());
            $this->log->info(sprintf('pipe: Rendered "%s" in %d seconds', $path, microtime(true) - $start));
            $response->headers->set('Content-Type', $asset->getContentType());
            $response->prepare($request);
            return $response;
        }
        return $this->app->handle($request, $type, $catch);
    }