protected function getConfigs()
    {
    	$session = $this->container->get('session');
    	if (!$configs = $session->get($this->getRequest()->get('thrace_media_id', false))){
            $configs = [
                'max_upload_size' => '200000000',
                'extensions' => 'application/*'
            ];
    	}
    	
    	return $configs;
    }