public function renderAction()
    {
        $name = $this->getRequest()->get('name');
        $hash = $this->getRequest()->get('hash');

        $response = new Response();        
        $response->setPublic();
        $response->setEtag($hash);
 
        if($response->isNotModified($this->getRequest())){
            return $response;
        }
        
        $fileManager = $this->container->get('thrace_media.filemanager');
        $content = $fileManager->getPermanentFileBlobByName($name);
        
        $response->setContent($content);
        $response->headers->set('Accept-Ranges', 'bytes');
        $response->headers->set('Content-Length', mb_strlen($content));
        $response->headers->set('Content-Type', $this->getMimeType($content));

        return $response;
    }