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<?php |
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namespace Dafiti\Silex\Listener; |
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use Dafiti\Silex\Response\Accept; |
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use Dafiti\Silex\Response\Factory as ResponseFactory; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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use Symfony\Component\HttpFoundation; |
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use Symfony\Component\HttpKernel\Event\GetResponseEvent; |
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use Symfony\Component\HttpKernel\KernelEvents; |
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class Header implements EventSubscriberInterface |
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{ |
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/** |
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* @var Accept |
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*/ |
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private $accept; |
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/** |
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* @param Accept $accept |
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*/ |
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public function __construct(Accept $accept) |
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{ |
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$this->accept = $accept; |
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} |
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/** |
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* @param GetResponseEvent $event |
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* |
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* @return GetResponseEvent |
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*/ |
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public function onKernelRequest(GetResponseEvent $event) |
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{ |
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if (!$event->getRequest()->headers->get('Accept')) { |
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$this->setNotAcceptableError($event); |
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return $event; |
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} |
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$raw_accepts = explode(',', $event->getRequest()->headers->get('Accept')); |
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$accepts = array_map('trim', $raw_accepts); |
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if (!$this->accept->hasAllowed($accepts)) { |
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$this->setNotAcceptableError($event); |
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return $event; |
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} |
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$accept = $this->accept->getBest($accepts); |
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$event->getRequest()->request->set('_accept', $accept); |
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return $event; |
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} |
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private function setNotAcceptableError(GetResponseEvent $event) |
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{ |
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$responseFactory = new ResponseFactory($this->accept->getDefault()); |
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$catalogResponse = new \Dafiti\Silex\Response(HttpFoundation\Response::HTTP_NOT_ACCEPTABLE); |
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$response = $responseFactory->create($catalogResponse); |
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$event->setResponse($response); |
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$event->stopPropagation(); |
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} |
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/** |
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* @return array |
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*/ |
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public static function getSubscribedEvents() |
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{ |
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return [ |
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KernelEvents::REQUEST => ['onKernelRequest', 100], |
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]; |
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} |
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/** |
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* @param array $config |
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* |
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* @return ContentNegotiationHeader |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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public static function create(array $config) |
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{ |
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$availableAccepts = $config['available_accepts']; |
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if (is_null($availableAccepts)) { |
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throw new \InvalidArgumentException('available_accepts'); |
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} |
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$defaultAccept = $config['default_accept']; |
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if (is_null($defaultAccept)) { |
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throw new \InvalidArgumentException('default_accept'); |
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} |
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$accept = new Accept($defaultAccept, $availableAccepts); |
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return new self($accept); |
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} |
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} |
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dafiti /
contentnegotiation-service-provider
