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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Form\Element;
use Zend\Form\Element;
use Zend\Form\ElementPrepareAwareInterface;
use Zend\Form\FormInterface;
use Zend\InputFilter\InputProviderInterface;
use Zend\Validator\Csrf as CsrfValidator;
class Csrf extends Element implements InputProviderInterface, ElementPrepareAwareInterface
{
/**
* Seed attributes
*
* @var array
*/
protected $attributes = array(
'type' => 'hidden',
);
/**
* @var array
*/
protected $csrfValidatorOptions = array();
/**
* @var CsrfValidator
*/
protected $csrfValidator;
/**
* Accepted options for Csrf:
* - csrf_options: an array used in the Csrf
*
* @param array|\Traversable $options
* @return Csrf
*/
public function setOptions($options)
{
parent::setOptions($options);
if (isset($options['csrf_options'])) {
$this->setCsrfValidatorOptions($options['csrf_options']);
}
return $this;
}
/**
* @return array
*/
public function getCsrfValidatorOptions()
{
return $this->csrfValidatorOptions;
}
/**
* @param array $options
* @return Csrf
*/
public function setCsrfValidatorOptions(array $options)
{
$this->csrfValidatorOptions = $options;
return $this;
}
/**
* Get CSRF validator
*
* @return CsrfValidator
*/
public function getCsrfValidator()
{
if (null === $this->csrfValidator) {
$csrfOptions = $this->getCsrfValidatorOptions();
$csrfOptions = array_merge($csrfOptions, array('name' => $this->getName()));
$this->setCsrfValidator(new CsrfValidator($csrfOptions));
}
return $this->csrfValidator;
}
/**
* @param \Zend\Validator\Csrf $validator
* @return Csrf
*/
public function setCsrfValidator(CsrfValidator $validator)
{
$this->csrfValidator = $validator;
return $this;
}
/**
* Retrieve value
*
* Retrieves the hash from the validator
*
* @return string
*/
public function getValue()
{
$validator = $this->getCsrfValidator();
return $validator->getHash();
}
/**
* Override: get attributes
*
* Seeds 'value' attribute with validator hash
*
* @return array
*/
public function getAttributes()
{
$attributes = parent::getAttributes();
$validator = $this->getCsrfValidator();
$attributes['value'] = $validator->getHash();
return $attributes;
}
/**
* Provide default input rules for this element
*
* Attaches the captcha as a validator.
*
* @return array
*/
public function getInputSpecification()
{
return array(
'name' => $this->getName(),
'required' => true,
'filters' => array(
array('name' => 'Zend\Filter\StringTrim'),
),
'validators' => array(
$this->getCsrfValidator(),
),
);
}
/**
* Prepare the form element
*/
public function prepareElement(FormInterface $form)
{
$this->getCsrfValidator()->getHash(true);
}
}
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