vendor/gregwar/captcha-bundle/Type/CaptchaType.php line 118

  1. <?php
  3. declare(strict_types=1);
  5. namespace Gregwar\CaptchaBundle\Type;
  7. use Symfony\Component\Form\Extension\Core\Type\TextType;
  8. use Symfony\Component\Form\FormView;
  9. use Symfony\Component\Form\FormInterface;
  10. use Symfony\Component\Form\AbstractType;
  11. use Symfony\Component\Form\FormBuilderInterface;
  12. use Symfony\Component\OptionsResolver\OptionsResolver;
  13. use Symfony\Component\Form\FormEvents;
  14. use Symfony\Contracts\Translation\TranslatorInterface;
  15. use Gregwar\CaptchaBundle\Validator\CaptchaValidator;
  16. use Gregwar\CaptchaBundle\Generator\CaptchaGenerator;
  17. use Symfony\Component\HttpFoundation\RequestStack; 
  19. /**
  20.  * Captcha type.
  21.  *
  22.  * @author Gregwar <g.passault@gmail.com>
  23.  */
  24. class CaptchaType extends AbstractType
  25. {
  26.     const SESSION_KEY_PREFIX = '_captcha_';
  28.     /** @var SessionInterface */
  29.     protected $session;
  31.     /** @var CaptchaGenerator */
  32.     protected $generator;
  34.     /** @var TranslatorInterface */
  35.     protected $translator;
  37.     /** @var array<mixed> */
  38.     private $options;
  40.     /**
  41.      * @param SessionInterface $session
  42.      * @param CaptchaGenerator $generator
  43.      * @param TranslatorInterface $translator
  44.      * @param array<mixed> $options
  45.      */
  46.     public function __construct(RequestStack $requestStack, CaptchaGenerator $generator, TranslatorInterface $translator, array $options)
  47.     {
  48.         $this->session = $requestStack->getSession();
  49.         $this->generator = $generator;
  50.         $this->translator = $translator;
  51.         $this->options = $options;
  52.     }
  54.     /**
  55.      * @param FormBuilderInterface<mixed> $builder
  56.      * @param array<mixed> $options
  57.      */
  58.     public function buildForm(FormBuilderInterface $builder, array $options): void
  59.     {
  60.         $validator = new CaptchaValidator(
  61.             $this->translator,
  62.             $this->session,
  63.             sprintf('%s%s', self::SESSION_KEY_PREFIX, $options['session_key']),
  64.             $options['invalid_message'],
  65.             $options['bypass_code'],
  66.             $options['humanity']
  67.         );
  69.         $builder->addEventListener(FormEvents::POST_SUBMIT, array($validator, 'validate'));
  70.     }
  72.     /**
  73.      * @param FormView<mixed> $view
  74.      * @param FormInterface<mixed> $form
  75.      * @param array<mixed> $options
  76.      */
  77.     public function buildView(FormView $view, FormInterface $form, array $options): void
  78.     {
  79.         if ($options['reload'] && !$options['as_url']) {
  80.             throw new \InvalidArgumentException('GregwarCaptcha: The reload option cannot be set without as_url, see the README for more information');
  81.         }
  83.         $sessionKey = sprintf('%s%s', self::SESSION_KEY_PREFIX, $options['session_key']);
  84.         $isHuman = false;
  86.         if ($options['humanity'] > 0) {
  87.             $humanityKey = sprintf('%s_humanity', $sessionKey);
  88.             if ($this->session->get($humanityKey, 0) > 0) {
  89.                 $isHuman = true;
  90.             }
  91.         }
  93.         if ($options['as_url']) {
  94.             $keys = $this->session->get($options['whitelist_key'], array());
  95.             if (!in_array($sessionKey, $keys)) {
  96.                 $keys[] = $sessionKey;
  97.             }
  98.             $this->session->set($options['whitelist_key'], $keys);
  99.             $options['session_key'] = $sessionKey;
  100.         }
  102.         $view->vars = array_merge($view->vars, array(
  103.             'captcha_width' => $options['width'],
  104.             'captcha_height' => $options['height'],
  105.             'reload' => $options['reload'],
  106.             'image_id' => uniqid('captcha_'),
  107.             'captcha_code' => $this->generator->getCaptchaCode($options),
  108.             'value' => '',
  109.             'is_human' => $isHuman,
  110.         ));
  112.         $persistOptions = array();
  113.         foreach (array('phrase', 'width', 'height', 'distortion', 'length',
  114.         'quality', 'background_color', 'background_images', 'text_color', ) as $key) {
  115.             $persistOptions[$key] = $options[$key];
  116.         }
  118.         $this->session->set($sessionKey, $persistOptions);
  119.     }
  121.     /**
  122.      * {@inheritdoc}
  123.      */
  124.     public function configureOptions(OptionsResolver $resolver): void
  125.     {
  126.         $this->options['mapped'] = false;
  127.         $resolver->setDefaults($this->options);
  128.     }
  130.     public function getParent(): string
  131.     {
  132.         return TextType::class;
  133.     }
  135.     public function getName(): string
  136.     {
  137.         return $this->getBlockPrefix();
  138.     }
  140.     public function getBlockPrefix(): string
  141.     {
  142.         return 'captcha';
  143.     }
  144. }