9.5/_link_handler_8php_source.html

<?php

namespace ‪TYPO3\CMS\Linkvalidator\Linktype;


/*

 * 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 ‪TYPO3\CMS\Core\Database\ConnectionPool;

use ‪TYPO3\CMS\Core\Database\Query\Restriction\DeletedRestriction;

use ‪TYPO3\CMS\Core\Utility\GeneralUtility;


class ‪LinkHandler extends ‪AbstractLinktype

{

    const ‪DELETED = 'deleted';


    const ‪DISABLED = 'disabled';


    public function ‪checkLink($url, $softRefEntry, $reference)

    {

        $response = true;

        $errorType = '';

        ‪$errorParams = [];

        $parts = explode(':', $url);

        if (count($parts) !== 3) {

            return $response;

        }


        list(, $tableName, $rowid) = $parts;

        $rowid = (int)$rowid;


        $row = null;

        $tsConfig = $reference->getTSConfig();

        $reportHiddenRecords = (bool)$tsConfig['linkhandler.']['reportHiddenRecords'];


        // First check, if we find a non disabled record if the check

        // for hidden records is enabled.

        if ($reportHiddenRecords) {

            $row = $this->‪getRecordRow($tableName, $rowid, 'disabled');

            if ($row === false) {

                $response = false;

                $errorType = ‪self::DISABLED;

            }

        }


        // If no enabled record was found or we did not check that see

        // if we can find a non deleted record.

        if ($row === null) {

            $row = $this->‪getRecordRow($tableName, $rowid, 'deleted');

            if ($row === false) {

                $response = false;

                $errorType = ‪self::DELETED;

            }

        }


        // If we did not find a non deleted record, check if we find a

        // deleted one.

        if ($row === null) {

            $row = $this->‪getRecordRow($tableName, $rowid, 'all');

            if ($row === false) {

                $response = false;

                $errorType = '';

            }

        }


        if (!$response) {

            ‪$errorParams['errorType'] = $errorType;

            ‪$errorParams['tablename'] = $tableName;

            ‪$errorParams['uid'] = $rowid;

            $this->‪setErrorParams(‪$errorParams);

        }


        return $response;

    }


    public function ‪fetchType($value, $type, $key)

    {

        if ($value['type'] === 'string' && strpos(strtolower($value['tokenValue']), 'record:') === 0) {

            $type = 'linkhandler';

        }

        return $type;

    }


    public function ‪getErrorMessage(‪$errorParams)

    {

        $errorType = ‪$errorParams['errorType'];

        $tableName = ‪$errorParams['tablename'];

        if (!empty(‪$GLOBALS['TCA'][$tableName]['ctrl']['title'])) {

            $title = $this->‪getLanguageService()->‪sL(‪$GLOBALS['TCA'][$tableName]['ctrl']['title']);

        } else {

            $title = $tableName;

        }

        switch ($errorType) {

            case ‪self::DISABLED:

                $response = $this->‪getTranslatedErrorMessage('list.report.rownotvisible', ‪$errorParams['uid'], $title);

                break;

            case ‪self::DELETED:

                $response = $this->‪getTranslatedErrorMessage('list.report.rowdeleted', ‪$errorParams['uid'], $title);

                break;

            default:

                $response = $this->‪getTranslatedErrorMessage('list.report.rownotexisting', ‪$errorParams['uid']);

        }

        return $response;

    }


    protected function ‪getTranslatedErrorMessage($translationKey, $uid, $title = null)

    {

        $message = $this->‪getLanguageService()->‪getLL($translationKey);

        $message = str_replace('###uid###', (int)$uid, $message);

        if (isset($title)) {

            $message = str_replace('###title###', htmlspecialchars($title), $message);

        }

        return $message;

    }


    protected function ‪getRecordRow($tableName, $uid, $filter = '')

    {

        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable($tableName);


        switch ($filter) {

            case ‪self::DISABLED:

                // All default restrictions for the QueryBuilder stay active

                break;

            case ‪self::DELETED:

                $queryBuilder->getRestrictions()

                    ->removeAll()

                    ->add(GeneralUtility::makeInstance(DeletedRestriction::class));

                break;

            default:

                $queryBuilder->getRestrictions()->removeAll();

        }


        $row = $queryBuilder

            ->select('*')

            ->from($tableName)

            ->where(

                $queryBuilder->expr()->eq(

                    'uid',

                    $queryBuilder->createNamedParameter($uid, \PDO::PARAM_INT)

                )

            )

            ->execute()

            ->fetch();


        return $row;

    }

}