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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the TYPO3 CMS project. |
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* |
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* It is free software; you can redistribute it and/or modify it under |
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* the terms of the GNU General Public License, either version 2 |
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* of the License, or any later version. |
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* |
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* For the full copyright and license information, please read the |
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* LICENSE.txt file that was distributed with this source code. |
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* |
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* The TYPO3 project - inspiring people to share! |
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*/ |
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namespace TYPO3\CMS\Seo\HrefLang; |
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use Psr\Http\Message\ServerRequestInterface; |
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use TYPO3\CMS\Core\Context\Context; |
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use TYPO3\CMS\Core\Context\LanguageAspectFactory; |
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use TYPO3\CMS\Core\Domain\Repository\PageRepository; |
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use TYPO3\CMS\Core\Http\Uri; |
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use TYPO3\CMS\Core\Site\Entity\SiteInterface; |
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use TYPO3\CMS\Core\Site\Entity\SiteLanguage; |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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use TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer; |
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use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController; |
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use TYPO3\CMS\Frontend\DataProcessing\LanguageMenuProcessor; |
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use TYPO3\CMS\Frontend\Event\ModifyHrefLangTagsEvent; |
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/** |
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* Class to add the hreflang tags to the page |
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* |
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* @internal |
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*/ |
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class HrefLangGenerator |
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{ |
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/** |
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* The content object renderer |
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* |
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* @var ContentObjectRenderer |
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*/ |
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public $cObj; |
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/** |
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* @var LanguageMenuProcessor |
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*/ |
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protected $languageMenuProcessor; |
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public function __construct(ContentObjectRenderer $cObj, LanguageMenuProcessor $languageMenuProcessor) |
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{ |
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$this->cObj = $cObj; |
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$this->languageMenuProcessor = $languageMenuProcessor; |
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} |
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public function __invoke(ModifyHrefLangTagsEvent $event): void |
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{ |
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$hrefLangs = $event->getHrefLangs(); |
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if ((int)$this->getTypoScriptFrontendController()->page['no_index'] === 1) { |
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return; |
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} |
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$this->cObj->setRequest($event->getRequest()); |
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$languages = $this->languageMenuProcessor->process($this->cObj, [], [], []); |
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/** @var SiteLanguage $siteLanguage */ |
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$siteLanguage = $event->getRequest()->getAttribute('language'); |
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$pageId = (int)$this->getTypoScriptFrontendController()->id; |
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foreach ($languages['languagemenu'] as $language) { |
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if ($language['available'] === 1 && !empty($language['link']) && $language['hreflang']) { |
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$page = $this->getTranslatedPageRecord($pageId, $language['languageId'], $event->getRequest()); |
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if (!empty($page['canonical_link'])) { |
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// do not set hreflang when canonical is set |
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continue; |
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} |
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$href = $this->getAbsoluteUrl($language['link'], $siteLanguage); |
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$hrefLangs[$language['hreflang']] = $href; |
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} |
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} |
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if (count($hrefLangs) > 1) { |
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if (array_key_exists($languages['languagemenu'][0]['hreflang'], $hrefLangs)) { |
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$hrefLangs['x-default'] = $hrefLangs[$languages['languagemenu'][0]['hreflang']]; |
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} |
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} |
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$event->setHrefLangs($hrefLangs); |
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} |
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/** |
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* @param string $url |
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* @param SiteLanguage $siteLanguage |
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* @return string |
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*/ |
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protected function getAbsoluteUrl(string $url, SiteLanguage $siteLanguage): string |
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{ |
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$uri = new Uri($url); |
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if (empty($uri->getHost())) { |
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$url = $siteLanguage->getBase()->withPath($uri->getPath()); |
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if ($uri->getQuery()) { |
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$url = $url->withQuery($uri->getQuery()); |
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} |
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} |
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return (string)$url; |
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} |
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/** |
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* @return TypoScriptFrontendController |
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*/ |
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protected function getTypoScriptFrontendController(): TypoScriptFrontendController |
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{ |
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return $GLOBALS['TSFE']; |
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} |
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protected function getTranslatedPageRecord(int $pageId, int $languageId, ServerRequestInterface $request): array |
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{ |
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$site = $request->getAttribute('site'); |
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if (!$site instanceof SiteInterface) { |
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return $this->getTypoScriptFrontendController()->page; |
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} |
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$targetSiteLanguage = $site->getLanguageById($languageId); |
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$languageAspect = LanguageAspectFactory::createFromSiteLanguage($targetSiteLanguage); |
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$context = clone GeneralUtility::makeInstance(Context::class); |
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$context->setAspect('language', $languageAspect); |
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$pageRepository = GeneralUtility::makeInstance(PageRepository::class, $context); |
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if ($languageId > 0) { |
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return $pageRepository->getPageOverlay($pageId, $languageId); |
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} |
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return $pageRepository->getPage($pageId); |
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} |
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} |
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TYPO3 /
TYPO3.CMS
