ListController.php

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<?php
namespace TYPO3\CMS\Backend\Controller\Wizard;

/*
 * 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 Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use TYPO3\CMS\Backend\Utility\BackendUtility;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Utility\HttpUtility;

class ListController extends AbstractWizardController
{
    public $pid;

    public $P;

    public $table;

    public $id;

    public function __construct()
    {
        parent::__construct();
        $this->getLanguageService()->includeLLFile('EXT:lang/locallang_wizards.xlf');
        $GLOBALS['SOBE'] = $this;
        $this->P = GeneralUtility::_GP('P');
        $this->table = GeneralUtility::_GP('table');
        $this->id = GeneralUtility::_GP('id');
    }

    public function mainAction(ServerRequestInterface $request, ResponseInterface $response)
    {
        $this->main();
        return $response;
    }

    public function main()
    {
        // Get this record
        $origRow = BackendUtility::getRecord($this->P['table'], $this->P['uid']);
        // Get TSconfig for it.
        $TSconfig = BackendUtility::getTCEFORM_TSconfig(
            $this->table,
            is_array($origRow) ? $origRow : ['pid' => $this->P['pid']]
        );
        // Set [params][pid]
        if (substr($this->P['params']['pid'], 0, 3) === '###' && substr($this->P['params']['pid'], -3) === '###') {
            $keyword = substr($this->P['params']['pid'], 3, -3);
            if (strpos($keyword, 'PAGE_TSCONFIG_') === 0) {
                $this->pid = (int)$TSconfig[$this->P['field']][$keyword];
            } else {
                $this->pid = (int)$TSconfig['_' . $keyword];
            }
        } else {
            $this->pid = (int)$this->P['params']['pid'];
        }
        // Make redirect:
        // If pid is blank OR if id is set, then return...
        if ((string)$this->id !== '') {
            $redirectUrl = GeneralUtility::sanitizeLocalUrl($this->P['returnUrl']);
        } else {
            // Otherwise, show the list:
            $urlParameters = [];
            $urlParameters['id'] = $this->pid;
            $urlParameters['table'] = $this->P['params']['table'];
            $urlParameters['returnUrl'] = GeneralUtility::getIndpEnv('REQUEST_URI');
            $redirectUrl = BackendUtility::getModuleUrl('web_list', $urlParameters);
        }
        HttpUtility::redirect($redirectUrl);
    }
}