IntegrityService.php

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<?php
 
declare(strict_types=1);
 
/*
 * 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!
 */
 
namespace ‪TYPO3\CMS\Redirects\Service;
 
use ‪TYPO3\CMS\Core\Database\ConnectionPool;
use ‪TYPO3\CMS\Core\Http\Uri;
use ‪TYPO3\CMS\Core\LinkHandling\LinkService;
use ‪TYPO3\CMS\Core\Site\Entity\Site;
use ‪TYPO3\CMS\Core\Site\SiteFinder;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
 
class ‪IntegrityService
{
    private ‪$redirectService;
 
    private ‪$siteFinder;
 
    public function ‪__construct(‪RedirectService ‪$redirectService = null, ‪SiteFinder ‪$siteFinder = null)
    {
        $this->siteFinder = ‪$siteFinder ?? GeneralUtility::makeInstance(SiteFinder::class);
        $this->redirectService = ‪$redirectService ?? GeneralUtility::makeInstance(
            RedirectService::class,
            GeneralUtility::makeInstance(RedirectCacheService::class),
            GeneralUtility::makeInstance(LinkService::class),
            $this->siteFinder
        );
    }
 
    public function ‪findConflictingRedirects(?string $siteIdentifier = null): \Generator
    {
        foreach ($this->‪getSites($siteIdentifier) as $site) {
            // Collect page urls for all pages and languages for $site.
            $urls = $this->‪getAllPageUrlsForSite($site);
            foreach ($urls as $url) {
                $uri = new ‪Uri($url);
                $matchingRedirect = $this->‪getMatchingRedirectByUri($uri);
                if ($matchingRedirect !== null) {
                    // @todo Returning information should be improved in future to give more useful information in
                    //       command output and report output, for example redirect uid, page/language details, which would
                    //       make the life easier for using the command and finding the conflicts.
                    yield [
                        'uri' => (string)$uri,
                        'redirect' => [
                            'source_host' => $matchingRedirect['source_host'],
                            'source_path' => $matchingRedirect['source_path'],
                        ],
                    ];
                }
            }
        }
    }
 
    private function ‪getMatchingRedirectByUri(‪Uri $uri): ?array
    {
        $port = $uri->‪getPort();
        $domain = $uri->‪getHost() . ($port ? ':' . $port : '');
        return $this->redirectService->matchRedirect($domain, $uri->‪getPath());
    }
 
    private function ‪getSites(?string $siteIdentifier): array
    {
        if ($siteIdentifier !== null) {
            return [$this->siteFinder->getSiteByIdentifier($siteIdentifier)];
        }
 
        return $this->siteFinder->getAllSites();
    }
 
    private function ‪getAllPageUrlsForSite(Site $site): array
    {
        $pageUrls = [];
 
        // language bases - redirects would be nasty, but should be checked also. We do not need to add site base
        // here, as there is always at least one default language.
        foreach ($site->getLanguages() as $siteLanguage) {
            $pageUrls[] = rtrim((string)$siteLanguage->getBase(), '/') . '/';
        }
 
        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)
            ->getQueryBuilderForTable('pages')
            ->select('slug', $this->‪getPagesLanguageFieldName())
            ->from('pages');
 
        $queryBuilder->where(
            $queryBuilder->expr()->orX(
                $queryBuilder->expr()->eq('uid', $queryBuilder->createNamedParameter($site->getRootPageId(), \PDO::PARAM_INT)),
                $queryBuilder->expr()->eq($this->getPagesLanguageParentFieldName(), $queryBuilder->createNamedParameter($site->getRootPageId(), \PDO::PARAM_INT))
            )
        );
        $result = $queryBuilder->execute();
 
        while ($row = $result->fetch()) {
            // @todo Considering only page slug is not complete, as it does not match redirects with file extension,
            //       for ex. if PageTypeSuffix routeEnhancer are used and redirects are created based on that.
            $slug = ltrim(($row['slug'] ?? ''), '/');
            $lang = (int)($row[$this->‪getPagesLanguageFieldName()] ?? 0);
            $siteLanguage = $site->getLanguageById($lang);
 
            // empty slug root pages has been already handled with language bases above, thus skip them here.
            if (empty($slug)) {
                continue;
            }
 
            $pageUrls[] = rtrim((string)$siteLanguage->getBase(), '/') . '/' . $slug;
        }
 
        $subPageUrls = $this->‪getSlugsOfSubPages($site->getRootPageId(), $site);
        $pageUrls = array_merge($pageUrls, $subPageUrls);
        return array_unique($pageUrls);
    }
 
    private function ‪getSlugsOfSubPages(int $pageId, Site $site): array
    {
        $pageUrls = [[]];
 
        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)
            ->getQueryBuilderForTable('pages')
            ->select('uid', 'slug', $this->‪getPagesLanguageFieldName())
            ->from('pages');
 
        $queryBuilder->where(
            $queryBuilder->expr()->eq('pid', $queryBuilder->createNamedParameter($pageId, \PDO::PARAM_INT))
        );
        $result = $queryBuilder->execute();
 
        while ($row = $result->fetch()) {
            // @todo Considering only page slug is not complete, as it does not matches redirects with file extension,
            //       for ex. if PageTypeSuffix routeEnhancer are used and redirects are created based on that.
            $slug = ltrim($row['slug'] ?? '', '/');
            $lang = (int)($row[$this->‪getPagesLanguageFieldName()] ?? 0);
            $siteLanguage = $site->getLanguageById($lang);
 
            // empty slugs should to occur here, but to be sure we skip them here, as they were already handled.
            if (empty($slug)) {
                continue;
            }
 
            $pageUrls[] = [rtrim((string)$siteLanguage->getBase(), '/') . '/' . $slug];
 
            // only traverse for pages of default language (as even translated pages contain pid of parent in default language)
            if ($lang === 0) {
                $pageUrls[] = $this->‪getSlugsOfSubPages((int)$row['uid'], $site);
            }
        }
        return array_merge(...$pageUrls);
    }
 
    private function ‪getPagesLanguageFieldName(): string
    {
        return ‪$GLOBALS['TCA']['pages']['ctrl']['languageField'] ?? 'sys_language_uid';
    }
 
    private function ‪getPagesLanguageParentFieldName(): string
    {
        return ‪$GLOBALS['TCA']['pages']['ctrl']['transOrigPointerField'] ?? 'l10n_parent';
    }
}