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IfAuthenticatedViewHelper.php
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IfAuthenticatedViewHelper.php
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<?php
namespace TYPO3\CMS\Fluid\ViewHelpers\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 ifAuthenticated/else condition for FE users/groups.
*
* = Examples =
*
* <code title="Basic usage">
* <f:security.ifAuthenticated>
* This is being shown whenever a FE user is logged in
* </f:security.ifAuthenticated>
* </code>
* <output>
* Everything inside the <f:ifAuthenticated> tag is being displayed if you are authenticated with any FE user account.
* </output>
*
* <code title="IfAuthenticated / then / else">
* <f:security.ifAuthenticated>
* <f:then>
* This is being shown in case you have access.
* </f:then>
* <f:else>
* This is being displayed in case you do not have access.
* </f:else>
* </f:security.ifAuthenticated>
* </code>
* <output>
* Everything inside the "then" tag is displayed if you have access.
* Otherwise, everything inside the "else"-tag is displayed.
* </output>
*
* @api
*/
class IfAuthenticatedViewHelper extends AbstractConditionViewHelper
{
/**
* 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)
{
return isset($GLOBALS['TSFE']) && $GLOBALS['TSFE']->loginUser;
}
/**
* @return mixed
*/
public function render()
{
if (static::evaluateCondition($this->arguments)) {
return $this->renderThenChild();
}
return $this->renderElseChild();
}
}