68 lines
1.5 KiB
PHP
68 lines
1.5 KiB
PHP
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<?php
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namespace Gregwar\CaptchaBundle\Type;
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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\FormBuilder;
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use Symfony\Bridge\Doctrine\RegistryInterface;
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use Symfony\Component\Form\Exception\FormException;
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use Symfony\Component\HttpFoundation\Session;
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use Gregwar\CaptchaBundle\Validator\CaptchaValidator;
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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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private $key = 'captcha';
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protected $session;
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public function __construct(Session $session)
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{
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$this->session = $session;
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}
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public function buildForm(FormBuilder $builder, array $options)
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{
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$builder->addValidator(
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new CaptchaValidator($this->session, $this->key)
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);
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}
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public function buildView(FormView $view, FormInterface $form)
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{
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$view->set('captcha_code', $this->generateCaptchaValue());
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}
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public function getParent(array $options)
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{
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return 'text';
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}
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public function getName()
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{
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return 'captcha';
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}
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private function generateCaptchaValue()
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{
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$charset = 'abcdefghijklmnopqrstuvwxyz0123456789';
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$value = '';
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$chars = str_split($charset);
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for ($i=0; $i<5; $i++) {
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$value.= $chars[array_rand($chars)];
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}
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$this->session->set($this->key, $value);
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return $value;
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}
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}
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