/**
* indexAction action.
*/
public function indexAction(Request $request, $_format)
{
$session = $request->getSession();
if ($request->hasPreviousSession() && $session->getFlashBag() instanceof AutoExpireFlashBag) {
// keep current flashes for one more request if using AutoExpireFlashBag
$session->getFlashBag()->setAll($session->getFlashBag()->peekAll());
}
$cache = new ConfigCache($this->exposedRoutesExtractor->getCachePath($request->getLocale()), $this->debug);
if (!$cache->isFresh()) {
$exposedRoutes = $this->exposedRoutesExtractor->getRoutes();
$serializedRoutes = $this->serializer->serialize($exposedRoutes, 'json');
$cache->write($serializedRoutes, $this->exposedRoutesExtractor->getResources());
} else {
$serializedRoutes = file_get_contents((string) $cache);
$exposedRoutes = $this->serializer->deserialize($serializedRoutes, 'Symfony\\Component\\Routing\\RouteCollection', 'json');
}
$routesResponse = new RoutesResponse($this->exposedRoutesExtractor->getBaseUrl(), $exposedRoutes, $this->exposedRoutesExtractor->getPrefix($request->getLocale()), $this->exposedRoutesExtractor->getHost(), $this->exposedRoutesExtractor->getScheme(), $request->getLocale());
$content = $this->serializer->serialize($routesResponse, 'json');
if (null !== ($callback = $request->query->get('callback'))) {
$validator = new \JsonpCallbackValidator();
if (!$validator->validate($callback)) {
throw new HttpException(400, 'Invalid JSONP callback value');
}
$content = $callback . '(' . $content . ');';
}
$response = new Response($content, 200, array('Content-Type' => $request->getMimeType($_format)));
$this->cacheControlConfig->apply($response);
return $response;
}
protected function getCallback(Request $request)
{
$callback = $request->query->get($this->callbackParam);
$validator = new \JsonpCallbackValidator();
if (!$validator->validate($callback)) {
throw new BadRequestHttpException('Invalid JSONP callback value');
}
return $callback;
}
/**
* Serializes an object.
*
* Implements FormatterInterface::formatItem($item)
*
* @param mixed $item
*
* @return array
*/
public function formatItem($item, $format = 'json')
{
$formatted = null;
switch ($format) {
case 'json':
// serialize properties with null values
$context = new SerializationContext();
$context->setSerializeNull(true);
$context->enableMaxDepthChecks(true);
$formatted = $this->getSerializer()->serialize($item, 'json', $context);
break;
case 'jsonp':
$callback = $this->getRequest()->query->get('jsonp.callback', 'JSONP.callback');
// validate against XSS
$validator = new \JsonpCallbackValidator();
if (!$validator->validate($callback)) {
throw new BadRequestHttpException('Invalid JSONP callback value');
}
$context = new SerializationContext();
$context->setSerializeNull(true);
$json = $this->getSerializer()->serialize($item, 'json');
$formatted = sprintf('/**/%s(%s)', $callback, $json);
break;
default:
// any other format is not supported
throw new \InvalidArgumentException(sprintf('Format not supported: %s', $format));
}
return $formatted;
}
public function testCallStatically()
{
$this->assertTrue(\JsonpCallbackValidator::validate('foo'));
}