ForcedHttpsBackendRedirector.php

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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\Backend\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\Http\RedirectResponse;
 
class ‪ForcedHttpsBackendRedirector implements MiddlewareInterface
{
    public function ‪process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        if ((bool)‪$GLOBALS['TYPO3_CONF_VARS']['BE']['lockSSL'] && !$request->getAttribute('normalizedParams')->isHttps()) {
            if ((int)‪$GLOBALS['TYPO3_CONF_VARS']['BE']['lockSSLPort']) {
                $sslPortSuffix = ':' . (int)‪$GLOBALS['TYPO3_CONF_VARS']['BE']['lockSSLPort'];
            } else {
                $sslPortSuffix = '';
            }
            [, $url] = explode('://', $request->getAttribute('normalizedParams')->getSiteUrl() . TYPO3_mainDir, 2);
            [$server, $address] = explode('/', $url, 2);
            return new ‪RedirectResponse('https://' . $server . $sslPortSuffix . '/' . $address);
        }
 
        return $handler->handle($request);
    }
}