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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Form\Extension\Csrf\CsrfProvider;
use Symfony\Component\HttpFoundation\Session\Session;
/**
* This provider uses a Symfony2 Session object to retrieve the user's
* session ID.
*
* @see DefaultCsrfProvider
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class SessionCsrfProvider extends DefaultCsrfProvider
{
/**
* The user session from which the session ID is returned
* @var Session
*/
protected $session;
/**
* Initializes the provider with a Session object and a secret value.
*
* A recommended value for the secret is a generated value with at least
* 32 characters and mixed letters, digits and special characters.
*
* @param Session $session The user session
* @param string $secret A secret value included in the CSRF token
*/
public function __construct(Session $session, $secret)
{
parent::__construct($secret);
$this->session = $session;
}
/**
* {@inheritdoc}
*/
protected function getSessionId()
{
$this->session->start();
return $this->session->getId();
}
}
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