9.5/_admin_is_system_maintainer_8php_source.html

<?php

declare(strict_types = 1);

namespace ‪TYPO3\CMS\Backend\Form\FieldInformation;


/*

 * 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!

 */


use ‪TYPO3\CMS\Backend\Form\AbstractNode;

use ‪TYPO3\CMS\Core\Authentication\BackendUserAuthentication;

use ‪TYPO3\CMS\Core\Localization\LanguageService;


class ‪AdminIsSystemMaintainer extends ‪AbstractNode

{

    public function ‪render(): array

    {

        if ($this->data['tableName'] !== 'be_users' || $this->data['fieldName'] !== 'admin') {

            throw new \RuntimeException(

                'The adminIsSystemMaintainer field information can be used for admin field in be_users table only',

                1537273550

            );

        }


        $resultArray = $this->‪initializeResultArray();

        if ($this->data['command'] === 'new') {

            // Early return on 'new' records - nothing we can do here

            return $resultArray;

        }


        // False if current user is not in system maintainer list or if switch to user mode is active

        $isCurrentUserSystemMaintainer = $this->‪getBackendUser()->‪isSystemMaintainer();

        $systemMaintainers = array_map('intval', ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['systemMaintainers'] ?? []);

        $isTargetUserInSystemMaintainerList = in_array((int)$this->data['vanillaUid'], $systemMaintainers, true);


        if ($isTargetUserInSystemMaintainerList) {

            $languageService = $this->‪getLanguageService();

            $isTargetUserAdmin = (int)$this->data['databaseRow']['admin'] === 1;

            if ($isCurrentUserSystemMaintainer) {

                if ($isTargetUserAdmin) {

                    // User is a system maintainer

                    $fieldInformationText = '<strong>' . htmlspecialchars($languageService->sL(

                        'LLL:EXT:core/Resources/Private/Language/locallang_core.xlf:formEngine.beUser.admin.information.userIsSystemMaintainer'

                    )) . '</strong>';

                } else {

                    // User is currently not an admin, but set as system maintainer (in-effective).

                    // If admin field is set to 1, the user is therefore system maintainer again.

                    $fieldInformationText = '<strong>' . htmlspecialchars($languageService->sL(

                        'LLL:EXT:core/Resources/Private/Language/locallang_core.xlf:formEngine.beUser.admin.information.userWillBecomeSystemMaintainer'

                    )) . '</strong>';

                }

            } else {

                // User is in system maintainer list, user can not change admin and password

                $fieldInformationText = '<strong>' . htmlspecialchars($languageService->sL(

                    'LLL:EXT:core/Resources/Private/Language/locallang_core.xlf:formEngine.beUser.admin.information.userAdminAndPasswordChangeNotAllowed'

                )) . '</strong>';

            }

            $resultArray['html'] = $fieldInformationText;

        }

        return $resultArray;

    }


    protected function ‪getLanguageService(): ‪LanguageService

    {

        return ‪$GLOBALS['LANG'];

    }


    protected function ‪getBackendUser(): ‪BackendUserAuthentication

    {

        return ‪$GLOBALS['BE_USER'];

    }

}