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IfHasRoleViewHelper.php
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IfHasRoleViewHelper.php
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<?php
namespace TYPO3\CMS\Fluid\ViewHelpers\Be\Security;
/*
* 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 TYPO3Fluid\Fluid\Core\ViewHelper\AbstractConditionViewHelper;
/**
* This view helper implements an ifHasRole/else condition for BE users/groups.
*
* = Examples =
*
* <code title="Basic usage">
* <f:be.security.ifHasRole role="Administrator">
* This is being shown in case the current BE user belongs to a BE usergroup (aka role) titled "Administrator" (case sensitive)
* </f:be.security.ifHasRole>
* </code>
* <output>
* Everything inside the <f:ifHasRole> tag is being displayed if the logged in BE user belongs to the specified role.
* </output>
*
* <code title="Using the usergroup uid as role identifier">
* <f:be.security.ifHasRole role="1">
* This is being shown in case the current BE user belongs to a BE usergroup (aka role) with the uid "1"
* </f:be.security.ifHasRole>
* </code>
* <output>
* Everything inside the <f:ifHasRole> tag is being displayed if the logged in BE user belongs to the specified role.
* </output>
*
* <code title="IfRole / then / else">
* <f:be.security.ifHasRole role="Administrator">
* <f:then>
* This is being shown in case you have the role.
* </f:then>
* <f:else>
* This is being displayed in case you do not have the role.
* </f:else>
* </f:be.security.ifHasRole>
* </code>
* <output>
* Everything inside the "then" tag is displayed if the logged in BE user belongs to the specified role.
* Otherwise, everything inside the "else"-tag is displayed.
* </output>
*
* @api
*/
class IfHasRoleViewHelper extends AbstractConditionViewHelper
{
/**
* Initializes the "role" argument.
* Renders <f:then> child if the current logged in BE user belongs to the specified role (aka usergroup)
* otherwise renders <f:else> child.
*/
public function initializeArguments()
{
$this->registerArgument('role', 'string', 'The usergroup (either the usergroup uid or its title).');
}
/**
* This method decides if the condition is TRUE or FALSE. It can be overridden in extending viewhelpers to adjust functionality.
*
* @param array $arguments ViewHelper arguments to evaluate the condition for this ViewHelper, allows for flexiblity in overriding this method.
* @return bool
*/
protected static function evaluateCondition($arguments = null)
{
$role = $arguments['role'];
if (!is_array($GLOBALS['BE_USER']->userGroups)) {
return false;
}
if (is_numeric($role)) {
foreach ($GLOBALS['BE_USER']->userGroups as $userGroup) {
if ((int)$userGroup['uid'] === (int)$role) {
return true;
}
}
} else {
foreach ($GLOBALS['BE_USER']->userGroups as $userGroup) {
if ($userGroup['title'] === $role) {
return true;
}
}
}
return false;
}
}