public function serve($app)
{
$fileType = $app->request()->format();
$filePath = null;
$filename = (string) $app->parameters()->path . ($fileType ? '.' . $fileType : '');
if ($fileType == 'css' || $fileType == 'js') {
$data = $app->getService('assets')->compileFile($filename, !(bool) $app->parameters()->body);
if ($data) {
$filePath = $data['tempFilePath'];
}
} else {
$file = $app->getService('assets')->findFile($filename);
if ($file) {
$filePath = $file->originalFilePath();
}
}
$response = $app->response();
if ($filePath) {
$mtime = filemtime($filePath);
$etag = md5($filePath . $mtime);
if ($this->notModified($filePath, $etag)) {
$this->setNotModifiedHeaders($response);
return;
}
$response->addHeader('Last-Modified', date('D, d M Y H:i:s T'))->addHeader('ETag', $etag)->addHeader('Cache-control', 'public, must-revalidate')->setBody(file_get_contents($filePath))->setContentType(MimeTypes::getMimeType($fileType));
} else {
$response->setStatus(404);
}
}
protected function setDefaultContentType($controller)
{
if (!$controller->response()->contentType()) {
$controller->response()->setContentType(MimeTypes::getMimeType($controller->request()->format()));
}
}
/**
* Attempts to serialize $var according to $format, setting the
* proper content type and returning the serialization.
* TODO: improve content type.
*
* @return string
*/
public function renderSerialized($var, $format)
{
if (is_string($var)) {
$serialized = $var;
} elseif (is_object($var)) {
$toMethod = 'to' . ucFirst($format);
if ($var instanceof \Rails\ActiveRecord\Relation) {
$serialized = $var->records()->{$toMethod}();
} else {
if (is_callable([$var, $toMethod])) {
$serialized = $var->{$toMethod}();
}
}
} elseif (is_array($var)) {
if ($format == 'json') {
$serialized = json_encode($var);
}
}
if (!isset($serialized)) {
if (is_object($var)) {
$message = sprintf("Can't serialize object of class %s to format %s", get_class($var), $format);
} else {
$message = sprintf("Can't serialize variable of type %s to format %s", gettype($var), $format);
}
throw new Exception\RuntimeException($message);
}
$this->controller->response()->setContentType(MimeTypes::getMimeType($format));
return $serialized;
}
