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<?php
declare(strict_types=1);
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Frontend\Middleware;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
use TYPO3\CMS\Core\Localization\Locales;
use TYPO3\CMS\Core\Routing\SiteMatcher;
use TYPO3\CMS\Core\Routing\SiteRouteResult;
use TYPO3\CMS\Core\Site\Entity\SiteLanguage;
/**
* Identifies if a site is configured for the request, based on "id" and "L" GET/POST parameters, or the requested
* string.
*
* If a site is found, the request is populated with the found language+site objects. If none is found, the main magic
* is handled by the PageResolver middleware.
*/
class SiteResolver implements MiddlewareInterface
{
public function __construct(protected readonly SiteMatcher $matcher) {}
/**
* Resolve the site/language information by checking the page ID or the URL.
*/
public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
{
/** @var SiteRouteResult $routeResult */
$routeResult = $this->matcher->matchRequest($request);
$request = $request->withAttribute('site', $routeResult->getSite());
$request = $request->withAttribute('language', $routeResult->getLanguage());
$request = $request->withAttribute('routing', $routeResult);
if ($routeResult->getLanguage() instanceof SiteLanguage) {
Locales::setSystemLocaleFromSiteLanguage($routeResult->getLanguage());
}
return $handler->handle($request);
}
}