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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\Install\Controller;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use TYPO3\CMS\Core\Http\JsonResponse;
use TYPO3\CMS\Core\Utility\GeneralUtility;
/**
* Used from backend `/typo3` context to check webserver response in general (independent of install tool).
* @internal This class is a specific controller implementation and is not considered part of the Public TYPO3 API.
*/
class ServerResponseCheckController
{
public static function hmac(string $value): string
{
return GeneralUtility::hmac($value, ServerResponseCheckController::class);
}
public function checkHostAction(ServerRequestInterface $request): ResponseInterface
{
$time = $request->getQueryParams()['src-time'] ?? null;
$hash = $request->getQueryParams()['src-hash'] ?? null;
if (empty($time) || !is_string($time) || empty($hash) || !is_string($hash)) {
return new JsonResponse(['error' => 'Query params src-time` and src-hash` are required.'], 400);
}
if (!hash_equals(self::hmac($time), $hash)) {
return new JsonResponse(['error' => 'Invalid time or hash provided.'], 400);
}
if ((int)$time + 60 < time()) {
return new JsonResponse(['error' => 'Request expired.'], 400);
}
return new JsonResponse([
'server.HTTP_HOST' => $_SERVER['HTTP_HOST'] ?? null,
'server.SERVER_NAME' => $_SERVER['SERVER_NAME'] ?? null,
'server.SERVER_PORT' => $_SERVER['SERVER_PORT'] ?? null,
]);
}
}