AjaxController.php

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<?php
 
/*
 * 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\Workspaces\Controller;
 
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use TYPO3\CMS\Backend\Utility\BackendUtility;
use ‪TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
use ‪TYPO3\CMS\Core\Http\JsonResponse;
use ‪TYPO3\CMS\Core\Type\Bitmask\Permission;
use ‪TYPO3\CMS\Workspaces\Service\WorkspaceService;
 
class ‪AjaxController
{
    public function ‪switchWorkspaceAction(ServerRequestInterface $request): ResponseInterface
    {
        $page = [];
        $parsedBody = $request->getParsedBody();
        $queryParams = $request->getQueryParams();
        $workspaceId = (int)($parsedBody['workspaceId'] ?? $queryParams['workspaceId']);
        $pageId = (int)($parsedBody['pageId'] ?? $queryParams['pageId'] ?? 0);
        $finalPageUid = 0;
        $originalPageId = $pageId;
 
        $this->‪getBackendUser()->‪setWorkspace($workspaceId);
 
        while ($pageId) {
            $page = BackendUtility::getRecordWSOL(
                'pages',
                $pageId,
                '*',
                ' AND pages.t3ver_wsid IN (0, ' . $workspaceId . ')'
            );
            if ($page) {
                if ($this->‪getBackendUser()->doesUserHaveAccess($page, ‪Permission::PAGE_SHOW)) {
                    break;
                }
            } else {
                $page = BackendUtility::getRecord('pages', $pageId);
            }
            $pageId = $page['pid'];
        }
 
        if (isset($page['uid'])) {
            $finalPageUid = (int)$page['uid'];
        }
 
        $ajaxResponse = [
            'title'       => ‪WorkspaceService::getWorkspaceTitle($workspaceId),
            'workspaceId' => $workspaceId,
            'pageId'      => ($finalPageUid && $originalPageId == $finalPageUid) ? null : $finalPageUid,
            'pageModule'  => $this->‪getPageModuleName(),
        ];
        return new ‪JsonResponse($ajaxResponse);
    }
 
    protected function ‪getPageModuleName(): string
    {
        $backendUser = $this->‪getBackendUser();
        $pageModule = trim($backendUser->getTSConfig()['options.']['overridePageModule'] ?? '');
        $pageModule = BackendUtility::isModuleSetInTBE_MODULES($pageModule) ? $pageModule : 'web_layout';
 
        return $backendUser->check('modules', $pageModule) ? $pageModule : '';
    }
 
    protected function ‪getBackendUser()
    {
        return ‪$GLOBALS['BE_USER'];
    }
}