RemoveUserViewHelper.php

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<?php
namespace TYPO3\CMS\Beuser\ViewHelpers;

/*
 * 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\Utility\BackendUtility;
use TYPO3\CMS\Beuser\Domain\Model\BackendUser;
use TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
use TYPO3\CMS\Core\Imaging\Icon;
use TYPO3\CMS\Core\Imaging\IconFactory;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Extbase\Utility\LocalizationUtility;
use TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper;
use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;

class RemoveUserViewHelper extends AbstractViewHelper
{
    use CompileWithRenderStatic;

    protected $escapeOutput = false;

    public function initializeArguments()
    {
        parent::initializeArguments();
        $this->registerArgument('backendUser', BackendUser::class, 'Target backendUser to switch active session to', true);
    }

    public static function renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext)
    {
        $backendUser = $arguments['backendUser'];
        $beUser = $GLOBALS['BE_USER'];
        $iconFactory = GeneralUtility::makeInstance(IconFactory::class);
        if ($backendUser->getUid() === (int)$beUser->user['uid']) {
            return '<span class="btn btn-default disabled">' . $iconFactory->getIcon('empty-empty', Icon::SIZE_SMALL)->render() . '</span>';
        }

        $urlParameters = [
            'cmd[be_users][' . $backendUser->getUid() . '][delete]' => 1,
            'prErr' => 1,
            'uPT' => 1,
            'redirect' => GeneralUtility::getIndpEnv('REQUEST_URI')
        ];
        $url = BackendUtility::getModuleUrl('tce_db', $urlParameters);

        return '<a class="btn btn-default t3js-modal-trigger" href="' . htmlspecialchars($url) . '"'
            . ' title="' . htmlspecialchars($GLOBALS['LANG']->sL('LLL:EXT:beuser/Resources/Private/Language/locallang.xlf:delete')) . '"'
            . ' data-severity="warning"'
            . ' data-title="' . htmlspecialchars($GLOBALS['LANG']->sL('LLL:EXT:lang/Resources/Private/Language/locallang_alt_doc.xlf:label.confirm.delete_record.title')) . '"'
            . ' data-content="' . htmlspecialchars(LocalizationUtility::translate('confirm', 'beuser', [$backendUser->getUserName()])) . '" '
            . ' data-button-close-text="' . htmlspecialchars($GLOBALS['LANG']->sL('LLL:EXT:lang/Resources/Private/Language/locallang_common.xlf:cancel')) . '"'
            . '>' . $iconFactory->getIcon('actions-edit-delete', Icon::SIZE_SMALL)->render() . '</a>';
    }
}