107 lines
2.4 KiB
PHP
Executable File
107 lines
2.4 KiB
PHP
Executable File
<?php
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namespace Gregwar\CaptchaBundle\Type;
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use Symfony\Component\HttpFoundation\Session;
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use Symfony\Component\DependencyInjection\ContainerInterface;
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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\Component\Form\Exception\FormException;
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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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/**
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* The image width
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* @var integer
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*/
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protected $width;
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/**
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* The image height
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* @var integer
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*/
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protected $height;
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/**
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* The session
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* @var Symfony\Component\HttpFoundation\Session
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*/
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protected $session;
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private $key = 'captcha';
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public function __construct(Session $session, $width, $height)
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{
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$this->session = $session;
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$this->width = $width;
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$this->height = $height;
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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 $form)
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{
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$generator = new CaptchaGenerator($this->generateCaptchaValue());
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$view->set('captcha_code', $generator->getCode($this->width, $this->height));
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$view->set('captcha_width', $this->width);
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$view->set('captcha_height', $this->height);
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}
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public function getDefaultOptions(array $options = array())
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{
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if (isset($options['width'])) {
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$this->width = $options['width'];
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$this->height = $options['height'];
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}
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return array(
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'width' => $this->width,
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'height' => $this->height
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);
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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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