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<?php
namespace Engelsystem\Renderer\Twig\Extensions;
use Symfony\Component\HttpFoundation\Session\SessionInterface;
use Twig_Extension as TwigExtension;
use Twig_Function as TwigFunction;
class Csrf extends TwigExtension
{
/** @var SessionInterface */
protected $session;
/**
* @param SessionInterface $session
*/
public function __construct(SessionInterface $session)
{
$this->session = $session;
}
/**
* @return TwigFunction[]
*/
public function getFunctions()
{
return [
new TwigFunction('csrf', [$this, 'getCsrfField'], ['is_safe' => ['html']]),
new TwigFunction('csrf_token', [$this, 'getCsrfToken']),
];
}
/**
* @return string
*/
public function getCsrfField()
{
return sprintf('<input type="hidden" name="_token" value="%s">', $this->getCsrfToken());
}
/**
* @return string
*/
public function getCsrfToken()
{
return $this->session->get('_token');
}
}
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