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HttpFoundationExtension.php
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HttpFoundationExtension.php
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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\Bridge\Twig\Extension;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\HttpFoundation\UrlHelper;
use Symfony\Component\Routing\RequestContext;
use Twig\Extension\AbstractExtension;
use Twig\TwigFunction;
/**
* Twig extension for the Symfony HttpFoundation component.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class HttpFoundationExtension extends AbstractExtension
{
private $urlHelper;
/**
* @param UrlHelper $urlHelper
*/
public function __construct($urlHelper)
{
if ($urlHelper instanceof UrlHelper) {
$this->urlHelper = $urlHelper;
return;
}
if (!$urlHelper instanceof RequestStack) {
throw new \TypeError(sprintf('The first argument must be an instance of "%s" or an instance of "%s".', UrlHelper::class, RequestStack::class));
}
@trigger_error(sprintf('Passing a "%s" instance as the first argument to the "%s" constructor is deprecated since Symfony 4.3, pass a "%s" instance instead.', RequestStack::class, __CLASS__, UrlHelper::class), E_USER_DEPRECATED);
$requestContext = null;
if (2 === \func_num_args()) {
$requestContext = func_get_arg(1);
if (null !== $requestContext && !$requestContext instanceof RequestContext) {
throw new \TypeError(sprintf('The second argument must be an instance of "%s".', RequestContext::class));
}
}
$this->urlHelper = new UrlHelper($urlHelper, $requestContext);
}
/**
* {@inheritdoc}
*
* @return TwigFunction[]
*/
public function getFunctions()
{
return [
new TwigFunction('absolute_url', [$this, 'generateAbsoluteUrl']),
new TwigFunction('relative_path', [$this, 'generateRelativePath']),
];
}
/**
* Returns the absolute URL for the given absolute or relative path.
*
* This method returns the path unchanged if no request is available.
*
* @param string $path The path
*
* @return string The absolute URL
*
* @see Request::getUriForPath()
*/
public function generateAbsoluteUrl($path)
{
return $this->urlHelper->getAbsoluteUrl($path);
}
/**
* Returns a relative path based on the current Request.
*
* This method returns the path unchanged if no request is available.
*
* @param string $path The path
*
* @return string The relative path
*
* @see Request::getRelativeUriForPath()
*/
public function generateRelativePath($path)
{
return $this->urlHelper->getRelativePath($path);
}
/**
* Returns the name of the extension.
*
* @return string The extension name
*/
public function getName()
{
return 'request';
}
}