120 lines
3.4 KiB
PHP
Executable File
120 lines
3.4 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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use Gregwar\CaptchaBundle\DataTransformer\EmptyTransformer;
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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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* Options
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* @var array
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*/
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private $options = array();
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/**
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* Session key
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* @var string
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*/
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private $key = 'captcha';
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public function __construct(Session $session, $config)
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{
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$this->session = $session;
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$this->options = $config;
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}
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public function buildForm(FormBuilder $builder, array $options)
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{
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$this->key = $builder->getForm()->getName();
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$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 $form)
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{
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$fingerprint = null;
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if ($this->options['keep_value'] && $this->session->has($this->key.'_fingerprint')) {
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$fingerprint = $this->session->get($this->key.'_fingerprint');
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}
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$generator = new CaptchaGenerator($this->generateCaptchaValue(),
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$this->options['image_folder'],
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$this->options['web_path'],
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$this->options['gc_freq'],
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$this->options['expiration'],
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$this->options['font'],
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$fingerprint,
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$this->options['quality']);
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if ($this->options['as_file']) {
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$view->set('captcha_code', $generator->getFile($this->options['width'], $this->options['height']));
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} else {
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$view->set('captcha_code', $generator->getCode($this->options['width'], $this->options['height']));
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}
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$view->set('captcha_width', $this->options['width']);
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$view->set('captcha_height', $this->options['height']);
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if ($this->options['keep_value']) {
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$this->session->set($this->key.'_fingerprint', $generator->getFingerprint());
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}
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$view->set('value', '');
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}
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public function getDefaultOptions(array $options = array())
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{
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$this->options = array_replace($this->options, $options);
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$this->options['property_path'] = false;
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return $this->options;
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}
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public function getParent(array $options)
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{
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return 'text';
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}
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public function getName()
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{
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return 'captcha';
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}
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private function generateCaptchaValue()
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{
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if (!$this->options['keep_value'] || !$this->session->has($this->key)) {
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$value = '';
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$chars = str_split($this->options['charset']);
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for ($i=0; $i<$this->options['length']; $i++) {
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$value.= $chars[array_rand($chars)];
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}
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$this->session->set($this->key, $value);
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} else {
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$value = $this->session->get($this->key);
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}
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return $value;
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}
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}
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