src/Component/ReCaptcha/EventSubscriber/ReCaptchaEventSubscriber.php line 31

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  1. <?php
  3. namespace App\Component\ReCaptcha\EventSubscriber;
  5. use ReCaptcha\ReCaptcha;
  6. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  7. use Symfony\Component\Form\FormError;
  8. use Symfony\Component\Form\FormEvent;
  9. use Symfony\Component\Form\FormEvents;
  10. use Symfony\Component\HttpFoundation\Request;
  11. use Symfony\Contracts\Translation\TranslatorInterface;
  13. class ReCaptchaEventSubscriber implements EventSubscriberInterface
  14. {
  15.     protected ReCaptcha $reCaptcha;
  16.     protected TranslatorInterface $translator;
  18.     public function __construct(ReCaptcha $reCaptcha, TranslatorInterface $translator)
  19.     {
  20.         $this->reCaptcha = $reCaptcha;
  21.         $this->translator = $translator;
  22.     }
  24.     public static function getSubscribedEvents(): array
  25.     {
  26.         return [
  27.             FormEvents::POST_SUBMIT => 'validateReCaptcha',
  28.         ];
  29.     }
  31.     public function validateReCaptcha(FormEvent $formEvent)
  32.     {
  33.         $request = Request::createFromGlobals();
  34.         $validation = $this->reCaptcha
  35.             ->setExpectedHostname($request->getHost())
  36.             ->verify(
  37.                 $request->request->get('g-recaptcha-response'),
  38.                 $request->getClientIp()
  39.             )
  40.         ;
  42.         if (!$validation->isSuccess()) {
  43.             $formEvent->getForm()->addError(
  44.                 new FormError($this->translator->trans('recaptcha.message_invalid'))
  45.             );
  46.         }
  47.     }
  48. }