first commit

typo3/sysext/seo/Classes/Canonical/CanonicalGenerator.php

@@ -0,0 +1,168 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Seo\Canonical;
+
+/*
+ * 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\Utility\GeneralUtility;
+use TYPO3\CMS\Extbase\SignalSlot\Dispatcher;
+use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
+use TYPO3\CMS\Frontend\Page\PageRepository;
+use TYPO3\CMS\Frontend\Utility\CanonicalizationUtility;
+
+/**
+ * Class to add the canonical tag to the page
+ *
+ * @internal this class is not part of TYPO3's Core API.
+ */
+class CanonicalGenerator
+{
+    /**
+     * @var TypoScriptFrontendController
+     */
+    protected $typoScriptFrontendController;
+
+    /**
+     * @var PageRepository
+     */
+    protected $pageRepository;
+
+    /**
+     * @var Dispatcher
+     */
+    protected $signalSlotDispatcher;
+
+    /**
+     * CanonicalGenerator constructor
+     *
+     * @param TypoScriptFrontendController $typoScriptFrontendController
+     * @param Dispatcher $signalSlotDispatcher
+     */
+    public function __construct(TypoScriptFrontendController $typoScriptFrontendController = null, Dispatcher $signalSlotDispatcher = null)
+    {
+        if ($typoScriptFrontendController === null) {
+            $typoScriptFrontendController = $this->getTypoScriptFrontendController();
+        }
+        if ($signalSlotDispatcher === null) {
+            $signalSlotDispatcher = GeneralUtility::makeInstance(Dispatcher::class);
+        }
+        $this->typoScriptFrontendController = $typoScriptFrontendController;
+        $this->signalSlotDispatcher = $signalSlotDispatcher;
+        $this->pageRepository = GeneralUtility::makeInstance(PageRepository::class);
+    }
+
+    /**
+     * @return string
+     * @throws \TYPO3\CMS\Extbase\SignalSlot\Exception\InvalidSlotException
+     * @throws \TYPO3\CMS\Extbase\SignalSlot\Exception\InvalidSlotReturnException
+     */
+    public function generate(): string
+    {
+        $href = '';
+        $this->signalSlotDispatcher->dispatch(self::class, 'beforeGeneratingCanonical', [&$href]);
+
+        if (empty($href) && (int)$this->typoScriptFrontendController->page['no_index'] === 1) {
+            return '';
+        }
+
+        if (empty($href)) {
+            // 1) Check if page show content from other page
+            $href = $this->checkContentFromPid();
+        }
+        if (empty($href)) {
+            // 2) Check if page has canonical URL set
+            $href = $this->checkForCanonicalLink();
+        }
+        if (empty($href)) {
+            // 3) Fallback, create canonical URL
+            $href = $this->checkDefaultCanonical();
+        }
+
+        if (!empty($href)) {
+            $canonical = '<link ' . GeneralUtility::implodeAttributes([
+                    'rel' => 'canonical',
+                    'href' => $href
+                ], true) . '/>' . LF;
+            $this->typoScriptFrontendController->additionalHeaderData[] = $canonical;
+            return $canonical;
+        }
+        return '';
+    }
+
+    /**
+     * @return string
+     */
+    protected function checkForCanonicalLink(): string
+    {
+        if (!empty($this->typoScriptFrontendController->page['canonical_link'])) {
+            return $this->typoScriptFrontendController->cObj->typoLink_URL([
+                'parameter' => $this->typoScriptFrontendController->page['canonical_link'],
+                'forceAbsoluteUrl' => true,
+            ]);
+        }
+        return '';
+    }
+
+    /**
+     * @return string
+     */
+    protected function checkContentFromPid(): string
+    {
+        if (!empty($this->typoScriptFrontendController->page['content_from_pid'])) {
+            $parameter = (int)$this->typoScriptFrontendController->page['content_from_pid'];
+            if ($parameter > 0) {
+                $targetPage = $this->pageRepository->getPage($parameter, true);
+                if (!empty($targetPage['canonical_link'])) {
+                    $parameter = $targetPage['canonical_link'];
+                }
+                return $this->typoScriptFrontendController->cObj->typoLink_URL([
+                    'parameter' => $parameter,
+                    'forceAbsoluteUrl' => true,
+                ]);
+            }
+        }
+        return '';
+    }
+
+    /**
+     * @return string
+     */
+    protected function checkDefaultCanonical(): string
+    {
+        return $this->typoScriptFrontendController->cObj->typoLink_URL([
+            'parameter' => $this->typoScriptFrontendController->id . ',' . $this->typoScriptFrontendController->type,
+            'forceAbsoluteUrl' => true,
+            'addQueryString' => true,
+            'addQueryString.' => [
+                'method' => 'GET',
+                'exclude' => implode(
+                    ',',
+                    CanonicalizationUtility::getParamsToExcludeForCanonicalizedUrl(
+                        (int)$this->typoScriptFrontendController->id,
+                        (array)$GLOBALS['TYPO3_CONF_VARS']['FE']['additionalCanonicalizedUrlParameters']
+                    )
+                )
+            ]
+        ]);
+    }
+
+    /**
+     * @return TypoScriptFrontendController
+     */
+    protected function getTypoScriptFrontendController(): TypoScriptFrontendController
+    {
+        return $GLOBALS['TSFE'];
+    }
+}

typo3/sysext/seo/Classes/HrefLang/HrefLangGenerator.php

@@ -0,0 +1,146 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Seo\HrefLang;
+
+/*
+ * 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\ServerRequestInterface;
+use TYPO3\CMS\Core\Http\Uri;
+use TYPO3\CMS\Core\Site\Entity\Site;
+use TYPO3\CMS\Core\Site\Entity\SiteLanguage;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer;
+use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
+use TYPO3\CMS\Frontend\DataProcessing\LanguageMenuProcessor;
+
+/**
+ * Class to add the hreflang tags to the page
+ *
+ * @internal
+ */
+class HrefLangGenerator
+{
+    /**
+     * The content object renderer
+     *
+     * @var ContentObjectRenderer
+     */
+    public $cObj;
+
+    /**
+     * @var TypoScriptFrontendController
+     */
+    protected $typoScriptFrontendController;
+
+    /**
+     * @var ServerRequestInterface
+     */
+    protected $request;
+
+    /**
+     * HreflangGenerator constructor
+     *
+     * @param ContentObjectRenderer|null $cObj
+     * @param TypoScriptFrontendController|null $typoScriptFrontendController
+     */
+    public function __construct(ContentObjectRenderer $cObj = null, TypoScriptFrontendController $typoScriptFrontendController = null, ServerRequestInterface $request = null)
+    {
+        if ($cObj === null) {
+            $cObj = GeneralUtility::makeInstance(ContentObjectRenderer::class);
+        }
+        if ($typoScriptFrontendController === null) {
+            $typoScriptFrontendController = $this->getTypoScriptFrontendController();
+        }
+        if ($request === null) {
+            $request = $this->getRequest();
+        }
+
+        $this->cObj = $cObj;
+        $this->typoScriptFrontendController = $typoScriptFrontendController;
+        $this->request = $request;
+    }
+
+    public function generate(): string
+    {
+        $hreflangs = [];
+        if ((int)$this->typoScriptFrontendController->page['no_index'] === 1) {
+            return '';
+        }
+
+        if ($this->request->getAttribute('site') instanceof Site) {
+            $languageMenu = GeneralUtility::makeInstance(LanguageMenuProcessor::class);
+            $languages = $languageMenu->process($this->cObj, [], [], []);
+            foreach ($languages['languagemenu'] as $language) {
+                if ($language['available'] === 1 && !empty($language['link'])) {
+                    $href = $this->getAbsoluteUrl($language['link']);
+                    $hreflangs[] =
+                        '<link rel="alternate" hreflang="' . htmlspecialchars($language['hreflang']) . '" href="' . htmlspecialchars($href) . '"/>';
+                }
+            }
+
+            if (count($hreflangs) > 1) {
+                $href = $this->getAbsoluteUrl($languages['languagemenu'][0]['link']);
+                $hreflangs[] =
+                    '<link rel="alternate" hreflang="x-default" href="' . htmlspecialchars($href) . '"/>' . LF;
+
+                $this->getTypoScriptFrontendController()->additionalHeaderData[] = implode(LF, $hreflangs);
+            }
+        }
+
+        return implode(LF, $hreflangs);
+    }
+
+    /**
+     * @param string $url
+     * @return string
+     */
+    protected function getAbsoluteUrl(string $url): string
+    {
+        $uri = new Uri($url);
+        if (empty($uri->getHost())) {
+            $url = $this->getSiteLanguage()->getBase()->withPath($uri->getPath());
+
+            if ($uri->getQuery()) {
+                $url = $url->withQuery($uri->getQuery());
+            }
+        }
+
+        return (string)$url;
+    }
+
+    /**
+     * @return SiteLanguage
+     */
+    protected function getSiteLanguage(): SiteLanguage
+    {
+        return $this->request->getAttribute('language');
+    }
+
+    /**
+     * @return TypoScriptFrontendController
+     */
+    protected function getTypoScriptFrontendController(): TypoScriptFrontendController
+    {
+        return $GLOBALS['TSFE'];
+    }
+
+    /**
+     * @return ServerRequestInterface
+     */
+    protected function getRequest(): ServerRequestInterface
+    {
+        return $GLOBALS['TYPO3_REQUEST'];
+    }
+}

typo3/sysext/seo/Classes/MetaTag/MetaTagGenerator.php

@@ -0,0 +1,170 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Seo\MetaTag;
+
+/*
+ * 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\Imaging\ImageManipulation\CropVariantCollection;
+use TYPO3\CMS\Core\MetaTag\MetaTagManagerRegistry;
+use TYPO3\CMS\Core\Resource\FileReference;
+use TYPO3\CMS\Core\Resource\ProcessedFile;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Extbase\Service\ImageService;
+use TYPO3\CMS\Frontend\Resource\FileCollector;
+
+/**
+ * Class to add the metatags for the SEO fields in core
+ *
+ * @internal
+ */
+class MetaTagGenerator
+{
+    /**
+     * Generate the meta tags that can be set in backend and add them to frontend by using the MetaTag API
+     *
+     * @param array $params
+     */
+    public function generate(array $params)
+    {
+        $metaTagManagerRegistry = GeneralUtility::makeInstance(MetaTagManagerRegistry::class);
+
+        if (!empty($params['page']['description'])) {
+            $manager = $metaTagManagerRegistry->getManagerForProperty('description');
+            $manager->addProperty('description', $params['page']['description']);
+        }
+
+        if (!empty($params['page']['og_title'])) {
+            $manager = $metaTagManagerRegistry->getManagerForProperty('og:title');
+            $manager->addProperty('og:title', $params['page']['og_title']);
+        }
+
+        if (!empty($params['page']['og_description'])) {
+            $manager = $metaTagManagerRegistry->getManagerForProperty('og:description');
+            $manager->addProperty('og:description', $params['page']['og_description']);
+        }
+
+        if (!empty($params['page']['og_image'])) {
+            $fileCollector = GeneralUtility::makeInstance(FileCollector::class);
+            $fileCollector->addFilesFromRelation('pages', 'og_image', $params['page']);
+            $manager = $metaTagManagerRegistry->getManagerForProperty('og:image');
+
+            $ogImages = $this->generateSocialImages($fileCollector->getFiles());
+            foreach ($ogImages as $ogImage) {
+                $subProperties = [];
+                $subProperties['url'] = $ogImage['url'];
+                $subProperties['width'] = $ogImage['width'];
+                $subProperties['height'] = $ogImage['height'];
+
+                if (!empty($ogImage['alternative'])) {
+                    $subProperties['alt'] = $ogImage['alternative'];
+                }
+
+                $manager->addProperty(
+                    'og:image',
+                    $ogImage['url'],
+                    $subProperties
+                );
+            }
+        }
+
+        /*
+         * Set type of twitter card to summary. This value can be overridden by TypoScript or the MetaTag API by
+         * using the replace option. In v10 this will be a page property
+        */
+        $manager = $metaTagManagerRegistry->getManagerForProperty('twitter:card');
+        $manager->addProperty('twitter:card', 'summary');
+
+        if (!empty($params['page']['twitter_title'])) {
+            $manager = $metaTagManagerRegistry->getManagerForProperty('twitter:title');
+            $manager->addProperty('twitter:title', $params['page']['twitter_title']);
+        }
+
+        if (!empty($params['page']['twitter_description'])) {
+            $manager = $metaTagManagerRegistry->getManagerForProperty('twitter:description');
+            $manager->addProperty('twitter:description', $params['page']['twitter_description']);
+        }
+
+        if (!empty($params['page']['twitter_image'])) {
+            $fileCollector = GeneralUtility::makeInstance(FileCollector::class);
+            $fileCollector->addFilesFromRelation('pages', 'twitter_image', $params['page']);
+            $manager = $metaTagManagerRegistry->getManagerForProperty('twitter:image');
+
+            $twitterImages = $this->generateSocialImages($fileCollector->getFiles());
+            foreach ($twitterImages as $twitterImage) {
+                $subProperties = [];
+
+                if (!empty($twitterImage['alternative'])) {
+                    $subProperties['alt'] = $twitterImage['alternative'];
+                }
+
+                $manager->addProperty(
+                    'twitter:image',
+                    $twitterImage['url'],
+                    $subProperties
+                );
+            }
+        }
+
+        $noIndex = ((bool)$params['page']['no_index']) ? 'noindex' : 'index';
+        $noFollow = ((bool)$params['page']['no_follow']) ? 'nofollow' : 'follow';
+
+        if ($noIndex === 'noindex' || $noFollow === 'nofollow') {
+            $manager = $metaTagManagerRegistry->getManagerForProperty('robots');
+            $manager->addProperty('robots', implode(',', [$noIndex, $noFollow]));
+        }
+    }
+
+    /**
+     * @param array $fileReferences
+     * @return array
+     */
+    protected function generateSocialImages(array $fileReferences): array
+    {
+        $imageService = GeneralUtility::makeInstance(ImageService::class);
+
+        $socialImages = [];
+
+        /** @var FileReference $file */
+        foreach ($fileReferences as $file) {
+            $arguments = $file->getProperties();
+            $cropVariantCollection = CropVariantCollection::create((string)$arguments['crop']);
+            $cropVariant = $arguments['cropVariant'] ?: 'social';
+            $cropArea = $cropVariantCollection->getCropArea($cropVariant);
+            $crop = $cropArea->makeAbsoluteBasedOnFile($file);
+
+            $cropInformation = $crop->asArray();
+
+            $processingConfiguration = [
+                'crop' => $crop
+            ];
+
+            $processedImage = $file->getOriginalFile()->process(
+                ProcessedFile::CONTEXT_IMAGECROPSCALEMASK,
+                $processingConfiguration
+            );
+
+            $imageUri = $imageService->getImageUri($processedImage, true);
+
+            $socialImages[] = [
+                'url' => $imageUri,
+                'width' => floor($cropInformation['width']),
+                'height' => floor($cropInformation['height']),
+                'alternative' => $arguments['alternative'],
+            ];
+        }
+
+        return $socialImages;
+    }
+}

typo3/sysext/seo/Classes/MetaTag/OpenGraphMetaTagManager.php

@@ -0,0 +1,68 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Seo\MetaTag;
+
+/*
+ * 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\MetaTag\AbstractMetaTagManager;
+
+/**
+ * @internal this class is not part of TYPO3's Core API.
+ */
+class OpenGraphMetaTagManager extends AbstractMetaTagManager
+{
+    /**
+     * The default attribute that defines the name of the property
+     *
+     * This creates tags like <meta property="" /> by default
+     *
+     * @var string
+     */
+    protected $defaultNameAttribute = 'property';
+
+    /**
+     * Array of properties that can be handled by this manager
+     *
+     * @var array
+     */
+    protected $handledProperties = [
+        'og:type' => [],
+        'og:title' => [],
+        'og:description' => [],
+        'og:site_name' => [],
+        'og:url' => [],
+        'og:audio' => [],
+        'og:video' => [],
+        'og:determiner' => [],
+        'og:locale' => [
+            'allowedSubProperties' => [
+                'alternate' => [
+                    'allowMultipleOccurrences' => true
+                ],
+            ]
+        ],
+        'og:image' => [
+            'allowMultipleOccurrences' => true,
+            'allowedSubProperties' => [
+                'url' => [],
+                'secure_url' => [],
+                'type' => [],
+                'width' => [],
+                'height' => [],
+                'alt' => [],
+            ]
+        ]
+    ];
+}

typo3/sysext/seo/Classes/MetaTag/TwitterCardMetaTagManager.php

@@ -0,0 +1,71 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Seo\MetaTag;
+
+/*
+ * 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\MetaTag\AbstractMetaTagManager;
+
+/**
+ * @internal this class is not part of TYPO3's Core API.
+ */
+class TwitterCardMetaTagManager extends AbstractMetaTagManager
+{
+    /**
+     * Array of properties that can be handled by this manager
+     *
+     * @var array
+     */
+    protected $handledProperties = [
+        'twitter:card' => [],
+        'twitter:site' => [
+            'allowedSubProperties' => [
+                'id' => [],
+            ]
+        ],
+        'twitter:creator' => [
+            'allowedSubProperties' => [
+                'id' => [],
+            ]
+        ],
+        'twitter:description' => [],
+        'twitter:title' => [],
+        'twitter:image' => [
+            'allowedSubProperties' => [
+                'alt' => [],
+            ]
+        ],
+        'twitter:player' => [
+            'allowedSubProperties' => [
+                'width' => [],
+                'height' => [],
+                'stream' => [],
+            ]
+        ],
+        'twitter:app' => [
+            'allowedSubProperties' => [
+                'name:iphone' => [],
+                'id:iphone' => [],
+                'url:iphone' => [],
+                'name:ipad' => [],
+                'id:ipad' => [],
+                'url:ipad' => [],
+                'name:googleplay' => [],
+                'id:googleplay' => [],
+                'url:googleplay' => [],
+            ]
+        ],
+    ];
+}

typo3/sysext/seo/Classes/PageTitle/SeoTitlePageTitleProvider.php

@@ -0,0 +1,31 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Seo\PageTitle;
+
+/*
+ * 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\PageTitle\AbstractPageTitleProvider;
+
+/**
+ * This class will take care of the seo title that can be set in the backend
+ * @internal this class is not part of TYPO3's Core API.
+ */
+class SeoTitlePageTitleProvider extends AbstractPageTitleProvider
+{
+    public function __construct()
+    {
+        $this->title = (string)$GLOBALS['TSFE']->page['seo_title'];
+    }
+}

typo3/sysext/seo/Classes/XmlSitemap/AbstractXmlSitemapDataProvider.php

@@ -0,0 +1,138 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Seo\XmlSitemap;
+
+/*
+ * 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\ServerRequestInterface;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer;
+
+/**
+ * Base class for XmlSitemapProviders to extend
+ */
+abstract class AbstractXmlSitemapDataProvider implements XmlSitemapDataProviderInterface
+{
+    /**
+     * @var string
+     */
+    protected $key;
+
+    /**
+     * @var int
+     */
+    protected $lastModified;
+
+    /**
+     * @var array
+     */
+    protected $items = [];
+
+    /**
+     * @var array
+     */
+    protected $config = [];
+
+    /**
+     * @var ContentObjectRenderer
+     */
+    protected $cObj;
+
+    /**
+     * @var int
+     */
+    protected $numberOfItemsPerPage = 1000;
+
+    /**
+     * @var ServerRequestInterface
+     */
+    protected $request;
+
+    /**
+     * AbstractXmlSitemapDataProvider constructor
+     *
+     * @param \Psr\Http\Message\ServerRequestInterface $request
+     * @param string $key
+     * @param array $config
+     * @param ContentObjectRenderer $cObj
+     */
+    public function __construct(ServerRequestInterface $request, string $key, array $config = [], ContentObjectRenderer $cObj = null)
+    {
+        $this->key = $key;
+        $this->config = $config;
+        $this->request = $request;
+
+        if ($cObj === null) {
+            $cObj = GeneralUtility::makeInstance(ContentObjectRenderer::class);
+        }
+        $this->cObj = $cObj;
+    }
+
+    /**
+     * @return string
+     */
+    public function getKey(): string
+    {
+        return $this->key;
+    }
+
+    /**
+     * @return int
+     */
+    public function getNumberOfPages(): int
+    {
+        return (int)ceil(count($this->items) / $this->numberOfItemsPerPage);
+    }
+
+    /**
+     * @return int
+     */
+    public function getLastModified(): int
+    {
+        $lastMod = 0;
+        foreach ($this->items as $item) {
+            if ((int)$item['lastMod'] > $lastMod) {
+                $lastMod = (int)$item['lastMod'];
+            }
+        }
+
+        return $lastMod;
+    }
+
+    /**
+     * @param array $data
+     * @return array
+     */
+    protected function defineUrl(array $data): array
+    {
+        return $data;
+    }
+
+    /**
+     * @return array
+     */
+    public function getItems(): array
+    {
+        $pageNumber = (int)($this->request->getQueryParams()['page'] ?? 0);
+        $page = $pageNumber > 0 ? $pageNumber : 0;
+        $items = array_slice(
+            $this->items,
+            $page * $this->numberOfItemsPerPage,
+            $this->numberOfItemsPerPage
+        );
+
+        return array_map([$this, 'defineUrl'], $items);
+    }
+}

typo3/sysext/seo/Classes/XmlSitemap/Exception/InvalidConfigurationException.php

@@ -0,0 +1,20 @@
+<?php
+declare(strict_types = 1);
+namespace TYPO3\CMS\Seo\XmlSitemap\Exception;
+
+/*
+ * 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!
+ */
+
+class InvalidConfigurationException extends \TYPO3\CMS\Core\Resource\Exception
+{
+}

typo3/sysext/seo/Classes/XmlSitemap/Exception/MissingConfigurationException.php

@@ -0,0 +1,20 @@
+<?php
+declare(strict_types = 1);
+namespace TYPO3\CMS\Seo\XmlSitemap\Exception;
+
+/*
+ * 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!
+ */
+
+class MissingConfigurationException extends \TYPO3\CMS\Core\Resource\Exception
+{
+}

typo3/sysext/seo/Classes/XmlSitemap/PagesXmlSitemapDataProvider.php

@@ -0,0 +1,124 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Seo\XmlSitemap;
+
+/*
+ * 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\ServerRequestInterface;
+use TYPO3\CMS\Core\Context\Context;
+use TYPO3\CMS\Core\Context\LanguageAspect;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Database\Query\QueryHelper;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer;
+use TYPO3\CMS\Frontend\Page\PageRepository;
+
+/**
+ * Class to generate a XML sitemap for pages
+ * @internal this class is not part of TYPO3's Core API.
+ */
+class PagesXmlSitemapDataProvider extends AbstractXmlSitemapDataProvider
+{
+    public function __construct(ServerRequestInterface $request, string $key, array $config = [], ContentObjectRenderer $cObj = null)
+    {
+        parent::__construct($request, $key, $config, $cObj);
+
+        $this->generateItems();
+    }
+
+    protected function generateItems(): void
+    {
+        $pageRepository = GeneralUtility::makeInstance(PageRepository::class);
+        $pages = $pageRepository->getPagesOverlay($this->getPages());
+        $languageAspect = $this->getCurrentLanguageAspect();
+        foreach ($pages as $page) {
+            if (!$pageRepository->isPageSuitableForLanguage($page, $languageAspect)) {
+                continue;
+            }
+
+            $this->items[] = [
+                'uid' => $page['uid'],
+                'lastMod' => (int)($page['SYS_LASTCHANGED'] ?: $page['tstamp'])
+            ];
+        }
+    }
+
+    /**
+     * @return array
+     */
+    protected function getPages(): array
+    {
+        if (!empty($this->config['rootPage'])) {
+            $rootPageId = (int)$this->config['rootPage'];
+        } else {
+            $site = $this->request->getAttribute('site');
+            $rootPageId = $site->getRootPageId();
+        }
+
+        $cObj = GeneralUtility::makeInstance(ContentObjectRenderer::class);
+        $treeList = $cObj->getTreeList(-$rootPageId, 99);
+        $treeListArray = GeneralUtility::intExplode(',', $treeList);
+
+        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)
+            ->getQueryBuilderForTable('pages');
+
+        $constraints = [
+            $queryBuilder->expr()->in('uid', $treeListArray)
+        ];
+
+        if (!empty($this->config['additionalWhere'])) {
+            $constraints[] = QueryHelper::stripLogicalOperatorPrefix($this->config['additionalWhere']);
+        }
+
+        if (!empty($this->config['excludedDoktypes'])) {
+            $excludedDoktypes = GeneralUtility::intExplode(',', $this->config['excludedDoktypes']);
+            if (!empty($excludedDoktypes)) {
+                $constraints[] = $queryBuilder->expr()->notIn('doktype', implode(',', $excludedDoktypes));
+            }
+        }
+        $pages = $queryBuilder->select('*')
+            ->from('pages')
+            ->where(...$constraints)
+            ->orderBy('uid', 'ASC')
+            ->execute()
+            ->fetchAll();
+
+        return $pages;
+    }
+
+    /**
+     * @return LanguageAspect
+     */
+    protected function getCurrentLanguageAspect(): LanguageAspect
+    {
+        return GeneralUtility::makeInstance(Context::class)->getAspect('language');
+    }
+
+    /**
+     * @param array $data
+     * @return array
+     */
+    protected function defineUrl(array $data): array
+    {
+        $typoLinkConfig = [
+            'parameter' => $data['uid'],
+            'forceAbsoluteUrl' => 1,
+        ];
+
+        $data['loc'] = $this->cObj->typoLink_URL($typoLinkConfig);
+
+        return $data;
+    }
+}

typo3/sysext/seo/Classes/XmlSitemap/RecordsXmlSitemapDataProvider.php

@@ -0,0 +1,195 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Seo\XmlSitemap;
+
+/*
+ * 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\ServerRequestInterface;
+use TYPO3\CMS\Core\Context\Context;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Database\Query\QueryHelper;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer;
+use TYPO3\CMS\Seo\XmlSitemap\Exception\MissingConfigurationException;
+
+/**
+ * XmlSiteDataProvider will provide information for the XML sitemap for a specific database table
+ * @internal this class is not part of TYPO3's Core API.
+ */
+class RecordsXmlSitemapDataProvider extends AbstractXmlSitemapDataProvider
+{
+    /**
+     * @param ServerRequestInterface $request
+     * @param string $key
+     * @param array $config
+     * @param ContentObjectRenderer|null $cObj
+     * @throws MissingConfigurationException
+     */
+    public function __construct(ServerRequestInterface $request, string $key, array $config = [], ContentObjectRenderer $cObj = null)
+    {
+        parent::__construct($request, $key, $config, $cObj);
+
+        $this->generateItems();
+    }
+
+    /**
+     * @throws MissingConfigurationException
+     */
+    public function generateItems(): void
+    {
+        $table = $this->config['table'];
+
+        if (empty($table)) {
+            throw new MissingConfigurationException(
+                'No configuration found for sitemap ' . $this->getKey(),
+                1535576053
+            );
+        }
+
+        $pids = !empty($this->config['pid']) ? GeneralUtility::intExplode(',', $this->config['pid']) : [];
+        $lastModifiedField = $this->config['lastModifiedField'] ?? 'tstamp';
+        $sortField = $this->config['sortField'] ?? 'sorting';
+
+        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)
+            ->getQueryBuilderForTable($table);
+
+        $constraints = [];
+        if (!empty($GLOBALS['TCA'][$table]['ctrl']['languageField'])) {
+            $constraints[] = $queryBuilder->expr()->in(
+                $GLOBALS['TCA'][$table]['ctrl']['languageField'],
+                [
+                    -1, // All languages
+                    $this->getLanguageId()  // Current language
+                ]
+            );
+        }
+
+        if (!empty($pids)) {
+            $recursiveLevel = isset($this->config['recursive']) ? (int)$this->config['recursive'] : 0;
+            if ($recursiveLevel) {
+                $newList = [];
+                foreach ($pids as $pid) {
+                    $list = $this->cObj->getTreeList($pid, $recursiveLevel);
+                    if ($list) {
+                        $newList = array_merge($newList, explode(',', $list));
+                    }
+                }
+                $pids = array_merge($pids, $newList);
+            }
+
+            $constraints[] = $queryBuilder->expr()->in('pid', $pids);
+        }
+
+        if (!empty($this->config['additionalWhere'])) {
+            $constraints[] = QueryHelper::stripLogicalOperatorPrefix($this->config['additionalWhere']);
+        }
+
+        $queryBuilder->select('*')
+            ->from($table);
+
+        if (!empty($constraints)) {
+            $queryBuilder->where(
+                ...$constraints
+            );
+        }
+
+        $rows = $queryBuilder->orderBy($sortField)
+            ->execute()
+            ->fetchAll();
+
+        foreach ($rows as $row) {
+            $this->items[] = [
+                'data' => $row,
+                'lastMod' => (int)$row[$lastModifiedField]
+            ];
+        }
+    }
+
+    /**
+     * @param array $data
+     * @return array
+     */
+    protected function defineUrl(array $data): array
+    {
+        $pageId = $this->config['url']['pageId'] ?? $GLOBALS['TSFE']->id;
+        $additionalParams = [];
+
+        $additionalParams = $this->getUrlFieldParameterMap($additionalParams, $data['data']);
+        $additionalParams = $this->getUrlAdditionalParams($additionalParams);
+
+        $additionalParamsString = http_build_query(
+            $additionalParams,
+            '',
+            '&',
+            PHP_QUERY_RFC3986
+        );
+
+        $typoLinkConfig = [
+            'parameter' => $pageId,
+            'additionalParams' => $additionalParamsString ? '&' . $additionalParamsString : '',
+            'forceAbsoluteUrl' => 1,
+            'useCacheHash' => $this->config['url']['useCacheHash'] ?? 0
+        ];
+
+        $data['loc'] = $this->cObj->typoLink_URL($typoLinkConfig);
+
+        return $data;
+    }
+
+    /**
+     * @param array $additionalParams
+     * @param array $data
+     * @return array
+     */
+    protected function getUrlFieldParameterMap(array $additionalParams, array $data): array
+    {
+        if (!empty($this->config['url']['fieldToParameterMap']) &&
+            \is_array($this->config['url']['fieldToParameterMap'])) {
+            foreach ($this->config['url']['fieldToParameterMap'] as $field => $urlPart) {
+                $additionalParams[$urlPart] = $data[$field];
+            }
+        }
+
+        return $additionalParams;
+    }
+
+    /**
+     * @param array $additionalParams
+     * @return array
+     */
+    protected function getUrlAdditionalParams(array $additionalParams): array
+    {
+        if (!empty($this->config['url']['additionalGetParameters']) &&
+            is_array($this->config['url']['additionalGetParameters'])) {
+            foreach ($this->config['url']['additionalGetParameters'] as $extension => $extensionConfig) {
+                foreach ($extensionConfig as $key => $value) {
+                    $additionalParams[$extension . '[' . $key . ']'] = $value;
+                }
+            }
+        }
+
+        return $additionalParams;
+    }
+
+    /**
+     * @return int
+     * @throws \TYPO3\CMS\Core\Context\Exception\AspectNotFoundException
+     */
+    protected function getLanguageId(): int
+    {
+        $context = GeneralUtility::makeInstance(Context::class);
+        return (int)$context->getPropertyFromAspect('language', 'id');
+    }
+}

typo3/sysext/seo/Classes/XmlSitemap/XmlSitemapDataProviderInterface.php

@@ -0,0 +1,32 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Seo\XmlSitemap;
+
+/*
+ * 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\ServerRequestInterface;
+use TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer;
+
+/**
+ * Interface for XmlSitemapDataProviders containing the methods that are called by the XmlSitemapRenderer
+ */
+interface XmlSitemapDataProviderInterface
+{
+    public function __construct(ServerRequestInterface $request, string $name, array $config = [], ContentObjectRenderer $cObj = null);
+    public function getKey(): string;
+    public function getItems(): array;
+    public function getLastModified(): int;
+    public function getNumberOfPages(): int;
+}

typo3/sysext/seo/Classes/XmlSitemap/XmlSitemapRenderer.php

@@ -0,0 +1,169 @@
+<?php
+declare(strict_types = 1);
+
+namespace TYPO3\CMS\Seo\XmlSitemap;
+
+/*
+ * 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\ServerRequestInterface;
+use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\Utility\PathUtility;
+use TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface;
+use TYPO3\CMS\Extbase\Object\ObjectManager;
+use TYPO3\CMS\Fluid\View\StandaloneView;
+use TYPO3\CMS\Seo\XmlSitemap\Exception\InvalidConfigurationException;
+
+/**
+ * Class to render the XML Sitemap to be used as a UserFunction
+ * @internal this class is not part of TYPO3's Core API.
+ */
+class XmlSitemapRenderer
+{
+    /**
+     * @var array
+     */
+    protected $configuration;
+
+    /**
+     * @var \TYPO3\CMS\Fluid\View\StandaloneView
+     */
+    protected $view;
+
+    public function __construct()
+    {
+        $this->configuration = $this->getConfiguration();
+        $this->view = $this->getStandaloneView();
+        $this->view->assign(
+            'xslFile',
+            PathUtility::stripPathSitePrefix(
+                ExtensionManagementUtility::extPath('seo', 'Resources/Public/CSS/Sitemap.xsl')
+            )
+        );
+    }
+
+    /**
+     * @return string
+     * @throws InvalidConfigurationException
+     */
+    public function render(): string
+    {
+        // Inject request from globals until request will be available to cObj
+        $request = $GLOBALS['TYPO3_REQUEST'];
+        $this->view->assign('type', $GLOBALS['TSFE']->type);
+        if (!empty($sitemap = $request->getQueryParams()['sitemap'])) {
+            return $this->renderSitemap($request, $sitemap);
+        }
+
+        return $this->renderIndex($request);
+    }
+
+    /**
+     * @param \Psr\Http\Message\ServerRequestInterface $request
+     * @return string
+     */
+    protected function renderIndex(ServerRequestInterface $request): string
+    {
+        $sitemaps = [];
+        foreach ($this->configuration['config']['xmlSitemap']['sitemaps'] ?? [] as $sitemap => $config) {
+            if (class_exists($config['provider']) &&
+                is_subclass_of($config['provider'], XmlSitemapDataProviderInterface::class)) {
+                /** @var XmlSitemapDataProviderInterface $provider */
+                $provider = GeneralUtility::makeInstance(
+                    $config['provider'],
+                    $request,
+                    $sitemap,
+                    (array)$config['config']
+                );
+
+                $pages = $provider->getNumberOfPages();
+
+                for ($page = 0; $page < $pages; $page++) {
+                    $sitemaps[] = [
+                        'key' => $sitemap,
+                        'page' => $page,
+                        'lastMod' => $provider->getLastModified()
+                    ];
+                }
+            }
+        }
+
+        $this->view->assign('sitemaps', $sitemaps);
+        $this->view->setTemplate('Index');
+
+        return $this->view->render();
+    }
+
+    /**
+     * @param \Psr\Http\Message\ServerRequestInterface $request
+     * @param string $sitemap
+     * @return string
+     * @throws \TYPO3\CMS\Seo\XmlSitemap\Exception\InvalidConfigurationException
+     */
+    protected function renderSitemap(ServerRequestInterface $request, string $sitemap): string
+    {
+        if (!empty($sitemapConfig = $this->configuration['config']['xmlSitemap']['sitemaps'][$sitemap])) {
+            if (class_exists($sitemapConfig['provider']) &&
+                is_subclass_of($sitemapConfig['provider'], XmlSitemapDataProviderInterface::class)) {
+                /** @var XmlSitemapDataProviderInterface $provider */
+                $provider = GeneralUtility::makeInstance(
+                    $sitemapConfig['provider'],
+                    $request,
+                    $sitemap,
+                    (array)$sitemapConfig['config']
+                );
+
+                $items = $provider->getItems();
+
+                $template = $sitemapConfig['config']['template'] ?: 'Sitemap';
+                $this->view->setTemplate($template);
+                $this->view->assign('items', $items);
+
+                return $this->view->render();
+            }
+            throw new InvalidConfigurationException('No valid provider set for ' . $sitemap, 1535578522);
+        }
+
+        throw new InvalidConfigurationException('No valid configuration found for sitemap ' . $sitemap, 1535578569);
+    }
+
+    /**
+     * @return \TYPO3\CMS\Fluid\View\StandaloneView
+     */
+    protected function getStandaloneView(): StandaloneView
+    {
+        $view = GeneralUtility::makeInstance(StandaloneView::class);
+        $view->setTemplateRootPaths($this->configuration['view']['templateRootPaths']);
+        $view->setLayoutRootPaths($this->configuration['view']['layoutRootPaths']);
+        $view->setPartialRootPaths($this->configuration['view']['partialRootPaths']);
+        $view->setFormat('xml');
+
+        return $view;
+    }
+
+    /**
+     * Get the whole typoscript array
+     * @return array
+     */
+    private function getConfiguration(): array
+    {
+        $configurationManager = GeneralUtility::makeInstance(ObjectManager::class)
+            ->get(ConfigurationManagerInterface::class);
+
+        return $configurationManager->getConfiguration(
+            ConfigurationManagerInterface::CONFIGURATION_TYPE_FRAMEWORK,
+            'seo'
+        );
+    }
+}