protected function serve($file_info)
{
$cache = new sfFileCache(array('cache_dir' => sfConfig::get('sf_web_dir') . DIRECTORY_SEPARATOR . ".." . DIRECTORY_SEPARATOR . 'cache'));
if ($file_info->getIsCached() && $cache->has($file_info->getId(), 'uploaded_files')) {
$file_data = new FileData();
$file_data->setBinaryData($cache->get($file_info->getId(), 'uploaded_files'));
} else {
$file_data = $file_info->getFileData();
$cache->set($file_info->getId(), 'uploaded_files', fread($file_data->getBinaryData(), $file_info->getSize()));
$file_info->setIsCached(true);
$file_info->save();
}
sfConfig::set('sf_web_debug', false);
// $this->getResponse()->addHttpMeta('content-type', $file_info->getMime());
// $this->getResponse()->addHttpMeta('content-length', $file_info->getSize());
return $file_data;
}