src/Form/EventListener/ReCaptchaValidatorListener.php line 28

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  1. <?php
  2. namespace App\Form\EventListener;
  4. use ReCaptcha\ReCaptcha;
  5. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  6. use Symfony\Component\Form\FormError;
  7. use Symfony\Component\Form\FormEvent;
  8. use Symfony\Component\Form\FormEvents;
  9. use Symfony\Component\HttpFoundation\Request;
  10. use Symfony\Contracts\Translation\TranslatorInterface;
  12. class ReCaptchaValidatorListener implements EventSubscriberInterface
  13. {
  14.     public function __construct(ReCaptcha $recaptcha, TranslatorInterface $translator, bool $enabled)
  15.     {
  16.         $this->recaptcha = $recaptcha;
  17.         $this->translator = $translator;
  18.         $this->enabled = $enabled;
  19.     }
  21.     public static function getSubscribedEvents()
  22.     {
  23.         return [
  24.             FormEvents::POST_SUBMIT => 'onPostSubmit'
  25.         ];
  26.     }
  28.     public function onPostSubmit(FormEvent $event)
  29.     {
  30.         // No hacer nada si no está habilitado
  31.         if (! $this->enabled)
  32.             return;
  33.         // Comprobación de que es válido
  34.         $request = Request::createFromGlobals();
  35.         $result =$this->recaptcha
  36.             ->setExpectedHostname($request->getHost())
  37.             ->verify($request->get('g-recaptcha-response'), $request->getClientIp());
  38.         if (! $result->isSuccess())
  39.             $event->getForm()->addError(new FormError($this->translator->trans("El captcha no es válido, por favor inténtelo de nuevo.")));
  40.     }
  41. }
  42. ?>