DeleteFileViewHelper.php

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<?php
namespace TYPO3\CMS\Filelist\ViewHelpers\Uri;

/*
 * 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 Closure;
use TYPO3\CMS\Backend\Utility\BackendUtility;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3\CMS\Fluid\Core\ViewHelper\Facets\CompilableInterface;

class DeleteFileViewHelper extends \TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper implements CompilableInterface
{
    public function render(\TYPO3\CMS\Core\Resource\AbstractFile $file, $returnUrl = '')
    {
        return static::renderStatic(
            [
                'file' => $file,
                'returnUrl' => $returnUrl,
            ],
            $this->buildRenderChildrenClosure(),
            $this->renderingContext
        );
    }

    public static function renderStatic(array $arguments, Closure $renderChildrenClosure, RenderingContextInterface $renderingContext)
    {
        $veriCode = '&vC=';
        if ($GLOBALS['BE_USER'] instanceof \TYPO3\CMS\Core\Authentication\BackendUserAuthentication) {
            $veriCode .= $GLOBALS['BE_USER']->veriCode() . BackendUtility::getUrlToken('tceAction');
        }

        if (empty($arguments['returnUrl'])) {
            $arguments['returnUrl'] = GeneralUtility::getIndpEnv('REQUEST_URI');
        }

        $file = $arguments['file'];

        $params = [
            'file' => [
                'delete' => [
                    0 => [
                        'data' => $file->getCombinedIdentifier()
                    ]
                ]
            ],
            'redirect' => $arguments['returnUrl']
        ];

        return BackendUtility::getModuleUrl('tce_file', $params) . $veriCode;
    }
}