142 lines
4.1 KiB
PHP
142 lines
4.1 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Gregwar\CaptchaBundle\Type;
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use Symfony\Component\Form\Extension\Core\Type\TextType;
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use Symfony\Component\HttpFoundation\Session\SessionInterface;
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use Symfony\Component\Form\FormView;
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use Symfony\Component\Form\FormInterface;
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use Symfony\Component\Form\AbstractType;
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use Symfony\Component\Form\FormBuilderInterface;
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use Symfony\Component\OptionsResolver\OptionsResolver;
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use Symfony\Component\Form\FormEvents;
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use Symfony\Contracts\Translation\TranslatorInterface;
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use Gregwar\CaptchaBundle\Validator\CaptchaValidator;
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use Gregwar\CaptchaBundle\Generator\CaptchaGenerator;
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/**
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* Captcha type.
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*
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* @author Gregwar <g.passault@gmail.com>
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*/
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class CaptchaType extends AbstractType
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{
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const SESSION_KEY_PREFIX = '_captcha_';
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/** @var SessionInterface */
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protected $session;
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/** @var CaptchaGenerator */
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protected $generator;
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/** @var TranslatorInterface */
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protected $translator;
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/** @var array */
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private $options = array();
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/**
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* @param SessionInterface $session
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* @param CaptchaGenerator $generator
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* @param TranslatorInterface $translator
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* @param array $options
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*/
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public function __construct(SessionInterface $session, CaptchaGenerator $generator, TranslatorInterface $translator, $options)
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{
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$this->session = $session;
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$this->generator = $generator;
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$this->translator = $translator;
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$this->options = $options;
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}
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/**
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* {@inheritdoc}
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*/
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public function buildForm(FormBuilderInterface $builder, array $options)
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{
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$validator = new CaptchaValidator(
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$this->translator,
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$this->session,
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sprintf('%s%s', self::SESSION_KEY_PREFIX, $options['session_key']),
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$options['invalid_message'],
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$options['bypass_code'],
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$options['humanity']
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);
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$builder->addEventListener(FormEvents::POST_SUBMIT, array($validator, 'validate'));
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}
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/**
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* {@inheritdoc}
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*/
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public function buildView(FormView $view, FormInterface $form, array $options)
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{
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if ($options['reload'] && !$options['as_url']) {
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throw new \InvalidArgumentException('GregwarCaptcha: The reload option cannot be set without as_url, see the README for more information');
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}
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$sessionKey = sprintf('%s%s', self::SESSION_KEY_PREFIX, $options['session_key']);
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$isHuman = false;
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if ($options['humanity'] > 0) {
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$humanityKey = sprintf('%s_humanity', $sessionKey);
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if ($this->session->get($humanityKey, 0) > 0) {
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$isHuman = true;
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}
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}
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if ($options['as_url']) {
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$keys = $this->session->get($options['whitelist_key'], array());
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if (!in_array($sessionKey, $keys)) {
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$keys[] = $sessionKey;
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}
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$this->session->set($options['whitelist_key'], $keys);
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$options['session_key'] = $sessionKey;
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}
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$view->vars = array_merge($view->vars, array(
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'captcha_width' => $options['width'],
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'captcha_height' => $options['height'],
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'reload' => $options['reload'],
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'image_id' => uniqid('captcha_'),
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'captcha_code' => $this->generator->getCaptchaCode($options),
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'value' => '',
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'is_human' => $isHuman,
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));
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$persistOptions = array();
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foreach (array('phrase', 'width', 'height', 'distortion', 'length',
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'quality', 'background_color', 'background_images', 'text_color', ) as $key) {
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$persistOptions[$key] = $options[$key];
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}
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$this->session->set($sessionKey, $persistOptions);
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}
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/**
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* {@inheritdoc}
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*/
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public function configureOptions(OptionsResolver $resolver)
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{
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$this->options['mapped'] = false;
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$resolver->setDefaults($this->options);
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}
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public function getParent(): string
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{
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return TextType::class;
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}
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public function getName(): string
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{
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return $this->getBlockPrefix();
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}
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public function getBlockPrefix(): string
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{
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return 'captcha';
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}
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}
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