vendor/eo/honeypot-bundle/Form/Type/HoneypotType.php line 27

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  1. <?php
  3. /*
  4.  * This file is part of the EoHoneypotBundle package.
  5.  *
  6.  * (c) Eymen Gunay <eymen@egunay.com>
  7.  *
  8.  * For the full copyright and license information, please view the LICENSE
  9.  * file that was distributed with this source code.
  10.  */
  12. namespace Eo\HoneypotBundle\Form\Type;
  14. use Eo\HoneypotBundle\Events;
  15. use Eo\HoneypotBundle\Event\BirdInCageEvent;
  16. use Doctrine\Common\Persistence\ObjectManager;
  17. use Eo\HoneypotBundle\Manager\HoneypotManager;
  18. use Symfony\Component\EventDispatcher\EventDispatcherInterface;
  19. use Symfony\Component\Form\FormError;
  20. use Symfony\Component\Form\FormEvent;
  21. use Symfony\Component\Form\FormEvents;
  22. use Symfony\Component\Form\AbstractType;
  23. use Symfony\Component\Form\FormBuilderInterface;
  24. use Symfony\Component\HttpFoundation\RequestStack;
  25. use Symfony\Component\OptionsResolver\OptionsResolver;
  27. class HoneypotType extends AbstractType
  28. {
  29.     /**
  30.      * @var Symfony\Component\HttpFoundation\RequestStack
  31.      */
  32.     protected $requestStack;
  34.     /**
  35.      * @var Eo\HoneypotBundle\Manager\HoneypotManager
  36.      */
  37.     protected $honeypotManager;
  39.     /**
  40.      * @var Symfony\Component\EventDispatcher\EventDispatcherInterface
  41.      */
  42.     protected $eventDispatcher;
  44.     /**
  45.      * Class constructor
  46.      *
  47.      * @param Symfony\Component\HttpFoundation\RequestStack $requestStack
  48.      * @param Eo\HoneypotBundle\Manager\HoneypotManager $honeypotManager
  49.      * @param Symfony\Component\EventDispatcher\EventDispatcherInterface $eventDispatcher
  50.      */
  51.     public function __construct(RequestStack $requestStack, HoneypotManager $honeypotManager, EventDispatcherInterface $eventDispatcher)
  52.     {
  53.         $this->requestStack = $requestStack;
  54.         $this->honeypotManager = $honeypotManager;
  55.         $this->eventDispatcher = $eventDispatcher;
  56.     }
  58.     /**
  59.      * {@inheritdoc}
  60.      */
  61.     public function buildForm(FormBuilderInterface $builder, array $options)
  62.     {
  63.         // Closure $this support was removed temporarily from PHP 5.3
  64.         // and re-introduced with 5.4. This small hack is here for 5.3 compability.
  65.         // https://wiki.php.net/rfc/closures/removal-of-this
  66.         // http://php.net/manual/en/migration54.new-features.php
  67.         $request = $this->requestStack->getCurrentRequest();
  68.         $honeypotManager = $this->honeypotManager;
  69.         $eventDispatcher = $this->eventDispatcher;
  71.         $builder->addEventListener(FormEvents::PRE_SUBMIT, function(FormEvent $event) use ($request, $honeypotManager, $eventDispatcher, $options) {
  72.             $data = $event->getData();
  73.             $form = $event->getForm();
  75.             if (!$data) {
  76.                 return;
  77.             }
  79.             // Create new prey
  80.             $prey = $honeypotManager->createNew($request->getClientIp());
  82.             // Dispatch bird.in.cage event
  83.             $eventDispatcher->dispatch(new BirdInCageEvent($prey), Events::BIRD_IN_CAGE);
  85.             // Save prey
  86.             $honeypotManager->save($prey);
  88.             if ($options['causesError']) {
  89.                 $form->getParent()->addError(new FormError('Form is invalid.'));
  90.             }
  91.         });
  92.     }
  94.     /**
  95.      * {@inheritdoc}
  96.      */
  97.     public function configureOptions(OptionsResolver $resolver)
  98.     {
  99.         $resolver->setDefaults(array(
  100.             'required'    => false,
  101.             'mapped'      => false,
  102.             'data'        => '',
  103.             'causesError' => true,
  104.             'attr'        => array(
  105.                 // autocomplete="off" does not work in some cases, random strings always do
  106.                 'autocomplete' => 'nope',
  107.                 // Make the field unfocusable for keyboard users
  108.                 'tabindex' => -1,
  109.                 // Hide the field from assistive technology like screen readers
  110.                 'aria-hidden' => 'true',
  111.                 // Fake `display:none` css behaviour to hide input
  112.                 // as some bots may also check inputs visibility
  113.                 'style' => 'position: fixed; left: -100%; top: -100%;'
  114.             )
  115.         ));
  116.     }
  118.     /**
  119.      * {@inheritdoc}
  120.      */
  121.     public function getParent()
  122.     {
  123.         return 'Symfony\Component\Form\Extension\Core\Type\TextType';
  124.     }
  125. }