IfHasRoleViewHelper.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\Fluid\ViewHelpers\Security;
 
use ‪TYPO3\CMS\Core\Context\Context;
use ‪TYPO3\CMS\Core\Context\UserAspect;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractConditionViewHelper;
 
class ‪IfHasRoleViewHelper extends AbstractConditionViewHelper
{
    public function ‪initializeArguments()
    {
        parent::initializeArguments();
 
        $this->registerArgument('role', 'string', 'The usergroup (either the usergroup uid or its title).');
    }
 
    protected static function ‪evaluateCondition($arguments = null)
    {
        $role = $arguments['role'];
        $userAspect = GeneralUtility::makeInstance(Context::class)->getAspect('frontend.user');
        if (!$userAspect->isLoggedIn()) {
            return false;
        }
        if (is_numeric($role)) {
            $groupIds = $userAspect->getGroupIds();
            return in_array((int)$role, $groupIds, true);
        }
        return in_array($role, $userAspect->getGroupNames(), true);
    }
}