]> git.mxchange.org Git - friendica.git/blobdiff - src/Util/ParseUrl.php
Check media links when fetching page data
[friendica.git] / src / Util / ParseUrl.php
index 83d0d84dc90eca910811ab2cf9f86626eafca216..13cb55b73ee1396acd4d03714d38c2c07be59233 100644 (file)
@@ -54,33 +54,27 @@ class ParseUrl
        /**
         * Fetch the content type of the given url
         * @param string $url URL of the page
-        * @return string content type 
+        * @return array content type 
         */
        public static function getContentType(string $url)
        {
                $curlResult = DI::httpRequest()->head($url);
                if (!$curlResult->isSuccess()) {
-                       return '';
+                       return [];
                }
 
                $contenttype =  $curlResult->getHeader('Content-Type');
                if (empty($contenttype)) {
-                       return '';
-               }
-               
-               if (!preg_match('#(image|video|audio)/#i', $contenttype, $matches)) {
-                       return '';
+                       return [];
                }
 
-               return array_pop($matches);
+               return explode('/', current(explode(';', $contenttype)));
        }
 
        /**
         * Search for chached embeddable data of an url otherwise fetch it
         *
         * @param string $url         The url of the page which should be scraped
-        * @param bool   $no_guessing If true the parse doens't search for
-        *                            preview pictures
         * @param bool   $do_oembed   The false option is used by the function fetch_oembed()
         *                            to avoid endless loops
         *
@@ -89,7 +83,7 @@ class ParseUrl
         *    string 'type'     => Content type
         *    string 'title'    => (optional) The title of the content
         *    string 'text'     => (optional) The description for the content
-        *    string 'image'    => (optional) A preview image of the content (only available if $no_geuessing = false)
+        *    string 'image'    => (optional) A preview image of the content
         *    array  'images'   => (optional) Array of preview pictures
         *    string 'keywords' => (optional) The tags which belong to the content
         *
@@ -97,7 +91,7 @@ class ParseUrl
         * @see   ParseUrl::getSiteinfo() for more information about scraping
         * embeddable content
         */
-       public static function getSiteinfoCached($url, $no_guessing = false, $do_oembed = true): array
+       public static function getSiteinfoCached($url, $do_oembed = true): array
        {
                if (empty($url)) {
                        return [
@@ -109,14 +103,14 @@ class ParseUrl
                $urlHash = hash('sha256', $url);
 
                $parsed_url = DBA::selectFirst('parsed_url', ['content'],
-                       ['url_hash' => $urlHash, 'guessing' => !$no_guessing, 'oembed' => $do_oembed]
+                       ['url_hash' => $urlHash, 'oembed' => $do_oembed]
                );
                if (!empty($parsed_url['content'])) {
                        $data = unserialize($parsed_url['content']);
                        return $data;
                }
 
-               $data = self::getSiteinfo($url, $no_guessing, $do_oembed);
+               $data = self::getSiteinfo($url, $do_oembed);
 
                $expires = $data['expires'];
 
@@ -126,7 +120,6 @@ class ParseUrl
                        'parsed_url',
                        [
                                'url_hash' => $urlHash,
-                               'guessing' => !$no_guessing,
                                'oembed'   => $do_oembed,
                                'url'      => $url,
                                'content'  => serialize($data),
@@ -150,8 +143,6 @@ class ParseUrl
         * \<meta name="description" content="An awesome description"\>
         *
         * @param string $url         The url of the page which should be scraped
-        * @param bool   $no_guessing If true the parse doens't search for
-        *                            preview pictures
         * @param bool   $do_oembed   The false option is used by the function fetch_oembed()
         *                            to avoid endless loops
         * @param int    $count       Internal counter to avoid endless loops
@@ -161,7 +152,7 @@ class ParseUrl
         *    string 'type'     => Content type (error, link, photo, image, audio, video)
         *    string 'title'    => (optional) The title of the content
         *    string 'text'     => (optional) The description for the content
-        *    string 'image'    => (optional) A preview image of the content (only available if $no_guessing = false)
+        *    string 'image'    => (optional) A preview image of the content
         *    array  'images'   => (optional) Array of preview pictures
         *    string 'keywords' => (optional) The tags which belong to the content
         *
@@ -179,7 +170,7 @@ class ParseUrl
         * </body>
         * @endverbatim
         */
-       public static function getSiteinfo($url, $no_guessing = false, $do_oembed = true, $count = 1)
+       public static function getSiteinfo($url, $do_oembed = true, $count = 1)
        {
                if (empty($url)) {
                        return [
@@ -211,8 +202,14 @@ class ParseUrl
                }
 
                $type = self::getContentType($url);
-               if (in_array($type, ['image', 'video', 'audio'])) {
-                       $siteinfo['type'] = $type;
+               Logger::info('Got content-type', ['content-type' => $type, 'url' => $url]);
+               if (!empty($type) && in_array($type[0], ['image', 'video', 'audio'])) {
+                       $siteinfo['type'] = $type[0];
+                       return $siteinfo;
+               }
+
+               if ((count($type) >= 2) && (($type[0] != 'text') || ($type[1] != 'html'))) {
+                       Logger::info('Unparseable content-type, quitting here, ', ['content-type' => $type, 'url' => $url]);
                        return $siteinfo;
                }
 
@@ -228,21 +225,6 @@ class ParseUrl
                        return $siteinfo;
                }
 
-               // Native media type, no need for HTML parsing
-               $type = $curlResult->getHeader('Content-Type');
-               if ($type) {
-                       preg_match('#(image|video|audio)/#i', $type, $matches);
-                       if ($matches) {
-                               $siteinfo['type'] = array_pop($matches);
-                               return $siteinfo;
-                       }
-               }
-
-               // If it isn't a HTML file then exit
-               if (($curlResult->getContentType() != '') && !strstr(strtolower($curlResult->getContentType()), 'html')) {
-                       return $siteinfo;
-               }
-
                if ($cacheControlHeader = $curlResult->getHeader('Cache-Control')) {
                        if (preg_match('/max-age=([0-9]+)/i', $cacheControlHeader, $matches)) {
                                $maxAge = max(86400, (int)array_pop($matches));
@@ -254,7 +236,7 @@ class ParseUrl
                $body = $curlResult->getBody();
 
                if ($do_oembed) {
-                       $oembed_data = OEmbed::fetchURL($url);
+                       $oembed_data = OEmbed::fetchURL($url, false, false);
 
                        if (!empty($oembed_data->type)) {
                                if (!in_array($oembed_data->type, ['error', 'rich', 'image', 'video', 'audio', ''])) {
@@ -263,13 +245,25 @@ class ParseUrl
 
                                // See https://github.com/friendica/friendica/pull/5763#discussion_r217913178
                                if ($siteinfo['type'] != 'photo') {
-                                       if (isset($oembed_data->title)) {
+                                       if (!empty($oembed_data->title)) {
                                                $siteinfo['title'] = trim($oembed_data->title);
                                        }
-                                       if (isset($oembed_data->description)) {
+                                       if (!empty($oembed_data->description)) {
                                                $siteinfo['text'] = trim($oembed_data->description);
                                        }
-                                       if (isset($oembed_data->thumbnail_url)) {
+                                       if (!empty($oembed_data->author_name)) {
+                                               $siteinfo['author_name'] = trim($oembed_data->author_name);
+                                       }
+                                       if (!empty($oembed_data->author_url)) {
+                                               $siteinfo['author_url'] = trim($oembed_data->author_url);
+                                       }
+                                       if (!empty($oembed_data->provider_name)) {
+                                               $siteinfo['publisher_name'] = trim($oembed_data->provider_name);
+                                       }
+                                       if (!empty($oembed_data->provider_url)) {
+                                               $siteinfo['publisher_url'] = trim($oembed_data->provider_url);
+                                       }
+                                       if (!empty($oembed_data->thumbnail_url)) {
                                                $siteinfo['image'] = $oembed_data->thumbnail_url;
                                        }
                                }
@@ -313,7 +307,6 @@ class ParseUrl
                @$doc->loadHTML($body);
 
                XML::deleteNode($doc, 'style');
-               XML::deleteNode($doc, 'script');
                XML::deleteNode($doc, 'option');
                XML::deleteNode($doc, 'h1');
                XML::deleteNode($doc, 'h2');
@@ -345,7 +338,7 @@ class ParseUrl
                                        }
                                }
                                if ($content != '') {
-                                       $siteinfo = self::getSiteinfo($content, $no_guessing, $do_oembed, ++$count);
+                                       $siteinfo = self::getSiteinfo($content, $do_oembed, ++$count);
                                        return $siteinfo;
                                }
                        }
@@ -405,6 +398,9 @@ class ParseUrl
                                case 'dc.description':
                                        $siteinfo['text'] = trim($meta_tag['content']);
                                        break;
+                               case 'dc.creator':
+                                       $siteinfo['publisher_name'] = trim($meta_tag['content']);
+                                       break;
                                case 'keywords':
                                        $keywords = explode(',', $meta_tag['content']);
                                        break;
@@ -439,12 +435,40 @@ class ParseUrl
                                        case 'og:image':
                                                $siteinfo['image'] = $meta_tag['content'];
                                                break;
+                                       case 'og:image:url':
+                                               $siteinfo['image'] = $meta_tag['content'];
+                                               break;
+                                       case 'og:image:secure_url':
+                                               $siteinfo['image'] = $meta_tag['content'];
+                                               break;
                                        case 'og:title':
                                                $siteinfo['title'] = trim($meta_tag['content']);
                                                break;
                                        case 'og:description':
                                                $siteinfo['text'] = trim($meta_tag['content']);
                                                break;
+                                       case 'og:site_name':
+                                               $siteinfo['publisher_name'] = trim($meta_tag['content']);
+                                               break;
+                                       case 'twitter:description':
+                                               $siteinfo['text'] = trim($meta_tag['content']);
+                                               break;
+                                       case 'twitter:title':
+                                               $siteinfo['title'] = trim($meta_tag['content']);
+                                               break;
+                                       case 'twitter:image':
+                                               $siteinfo['image'] = $meta_tag['content'];
+                                               break;
+                               }
+                       }
+               }
+
+               $list = $xpath->query("//script[@type='application/ld+json']");
+               foreach ($list as $node) {
+                       if (!empty($node->nodeValue)) {
+                               $nodevalue = html_entity_decode($node->nodeValue, ENT_COMPAT, 'UTF-8');
+                               if ($jsonld = json_decode($nodevalue, true)) {
+                                       $siteinfo = self::parseParts($siteinfo, $jsonld);
                                }
                        }
                }
@@ -455,19 +479,13 @@ class ParseUrl
                }
 
                if (!empty($siteinfo['image'])) {
-                       $src = self::completeUrl($siteinfo['image'], $url);
-
+                       $siteinfo['images'] = $siteinfo['images'] ?? [];
+                       array_unshift($siteinfo['images'], ['url' => $siteinfo['image']]);
                        unset($siteinfo['image']);
-
-                       $photodata = Images::getInfoFromURLCached($src);
-
-                       if (($photodata) && ($photodata[0] > 10) && ($photodata[1] > 10)) {
-                               $siteinfo['images'][] = ['src' => $src,
-                                       'width' => $photodata[0],
-                                       'height' => $photodata[1]];
-                       }
                }
 
+               $siteinfo = self::checkMedia($url, $siteinfo);
+
                if (!empty($siteinfo['text']) && mb_strlen($siteinfo['text']) > self::MAX_DESC_COUNT) {
                        $siteinfo['text'] = mb_substr($siteinfo['text'], 0, self::MAX_DESC_COUNT) . '…';
                        $pos = mb_strrpos($siteinfo['text'], '.');
@@ -483,6 +501,98 @@ class ParseUrl
                return $siteinfo;
        }
 
+       /**
+        * Check the attached media elements.
+        * Fix existing data and add missing data.
+        *
+        * @param string $page_url
+        * @param array $siteinfo
+        * @return void
+        */
+       private static function checkMedia(string $page_url, array $siteinfo)
+       {
+               if (!empty($siteinfo['images'])) {
+                       array_walk($siteinfo['images'], function (&$image) use ($page_url) {
+                               // According to the specifications someone could place a picture url into the content field as well.
+                               // But this doesn't seem to happen in the wild, so we don't cover it here.
+                               $image['url'] = self::completeUrl($image['url'], $page_url);
+                               $photodata = Images::getInfoFromURLCached($image['url']);
+                               if (!empty($photodata) && ($photodata[0] > 50) && ($photodata[1] > 50)) {
+                                       $image['src'] = $image['url'];
+                                       $image['width'] = $photodata[0];
+                                       $image['height'] = $photodata[1];
+                                       $image['contenttype'] = $photodata['mime'];
+                                       unset($image['url']);
+                                       ksort($image);
+                               } else {
+                                       $image = [];
+                               }
+                       });
+
+                       $siteinfo['images'] = array_values(array_filter($siteinfo['images']));
+               }
+
+               foreach (['audio', 'video'] as $element) {
+                       if (!empty($siteinfo[$element])) {
+                               array_walk($siteinfo[$element], function (&$media) use ($page_url, &$siteinfo) {
+                                       $url = '';
+                                       $embed = '';
+                                       $content = '';
+                                       $contenttype = '';
+                                       foreach (['embed', 'content', 'url'] as $field) {
+                                               if (!empty($media[$field])) {
+                                                       $media[$field] = self::completeUrl($media[$field], $page_url);
+                                                       $type = self::getContentType($media[$field]);
+                                                       if ($type[0] == 'text') {
+                                                               if ($field == 'embed') {
+                                                                       $embed = $media[$field];
+                                                               } else {
+                                                                       $url = $media[$field];
+                                                               }
+                                                       } elseif (!empty($type[0])) {
+                                                               $content = $media[$field];
+                                                               $contenttype = implode('/', $type);
+                                                       }
+                                               }
+                                               unset($media[$field]);
+                                       }
+
+                                       foreach (['image', 'preview'] as $field) {
+                                               if (!empty($media[$field])) {
+                                                       $media[$field] = self::completeUrl($media[$field], $page_url);
+                                               }
+                                       }
+
+                                       if (!empty($url)) {
+                                               $media['url'] = $url;
+                                       }
+                                       if (!empty($embed)) {
+                                               $media['embed'] = $embed;
+                                               if (!empty($media['main'])) {
+                                                       $siteinfo['embed'] = $embed;
+                                               }
+                                       }
+                                       if (!empty($content)) {
+                                               $media['src'] = $content;
+                                       }
+                                       if (!empty($contenttype)) {
+                                               $media['contenttype'] = $contenttype;
+                                       }
+                                       if (empty($url) && empty($content) && empty($embed)) {
+                                               $media = [];
+                                       }
+                                       ksort($media);
+                               });
+
+                               $siteinfo[$element] = array_values(array_filter($siteinfo[$element]));
+                       }
+                       if (empty($siteinfo[$element])) {
+                               unset($siteinfo[$element]);
+                       }
+               }
+               return $siteinfo;
+       }
+
        /**
         * Convert tags from CSV to an array
         *
@@ -564,4 +674,530 @@ class ParseUrl
 
                return($complete);
        }
+
+       /**
+        * Parse the Json-Ld parts of a web page
+        *
+        * @param array $siteinfo
+        * @param array $jsonld
+        * @return array siteinfo
+        */
+       private static function parseParts(array $siteinfo, array $jsonld)
+       {
+               if (!empty($jsonld['@graph']) && is_array($jsonld['@graph'])) {
+                       foreach ($jsonld['@graph'] as $part) {
+                               $siteinfo = self::parseParts($siteinfo, $part);
+                       }
+               } elseif (!empty($jsonld['@type'])) {
+                       $siteinfo = self::parseJsonLd($siteinfo, $jsonld);
+               } elseif (!empty($jsonld)) {
+                       $keys = array_keys($jsonld);
+                       $numeric_keys = true;
+                       foreach ($keys as $key) {
+                               if (!is_int($key)) {
+                                       $numeric_keys = false;
+                               }
+                       }
+                       if ($numeric_keys) {
+                               foreach ($jsonld as $part) {
+                                       $siteinfo = self::parseParts($siteinfo, $part);
+                               }       
+                       }
+               }
+
+               return $siteinfo;
+       }
+
+       /**
+        * Improve the siteinfo with information from the provided JSON-LD information
+        * @see https://jsonld.com/
+        * @see https://schema.org/
+        *
+        * @param array $siteinfo
+        * @param array $jsonld
+        * @return array siteinfo
+        */
+       private static function parseJsonLd(array $siteinfo, array $jsonld)
+       {
+               $type = JsonLD::fetchElement($jsonld, '@type');
+               if (empty($type)) {
+                       Logger::info('Empty type', ['url' => $siteinfo['url']]);
+                       return $siteinfo;
+               }
+
+               // Silently ignore some types that aren't processed
+               if (in_array($type, ['SiteNavigationElement', 'JobPosting', 'CreativeWork', 'MusicAlbum',
+                       'WPHeader', 'WPSideBar', 'WPFooter', 'LegalService', 'MusicRecording',
+                       'ItemList', 'BreadcrumbList', 'Blog', 'Dataset', 'Product'])) {
+                       return $siteinfo;
+               }
+
+               switch ($type) {
+                       case 'Article':
+                       case 'AdvertiserContentArticle':
+                       case 'NewsArticle':
+                       case 'Report':
+                       case 'SatiricalArticle':
+                       case 'ScholarlyArticle':
+                       case 'SocialMediaPosting':
+                       case 'TechArticle':
+                       case 'ReportageNewsArticle':
+                       case 'SocialMediaPosting':
+                       case 'BlogPosting':
+                       case 'LiveBlogPosting':
+                       case 'DiscussionForumPosting':
+                               return self::parseJsonLdArticle($siteinfo, $jsonld);
+                       case 'WebPage':
+                       case 'AboutPage':
+                       case 'CheckoutPage':
+                       case 'CollectionPage':
+                       case 'ContactPage':
+                       case 'FAQPage':
+                       case 'ItemPage':
+                       case 'MedicalWebPage':
+                       case 'ProfilePage':
+                       case 'QAPage':
+                       case 'RealEstateListing':
+                       case 'SearchResultsPage':
+                       case 'MediaGallery':                    
+                       case 'ImageGallery':
+                       case 'VideoGallery':
+                       case 'RadioEpisode':
+                       case 'Event':
+                               return self::parseJsonLdWebPage($siteinfo, $jsonld);
+                       case 'WebSite':
+                               return self::parseJsonLdWebSite($siteinfo, $jsonld);
+                       case 'Organization':
+                       case 'Airline':
+                       case 'Consortium':
+                       case 'Corporation':
+                       case 'EducationalOrganization':
+                       case 'FundingScheme':
+                       case 'GovernmentOrganization':
+                       case 'LibrarySystem':
+                       case 'LocalBusiness':
+                       case 'MedicalOrganization':
+                       case 'NGO':
+                       case 'NewsMediaOrganization':
+                       case 'Project':
+                       case 'SportsOrganization':
+                       case 'WorkersUnion':
+                               return self::parseJsonLdWebOrganization($siteinfo, $jsonld);
+                       case 'Person':
+                       case 'Patient':
+                       case 'PerformingGroup':
+                       case 'DanceGroup';
+                       case 'MusicGroup':
+                       case 'TheaterGroup':                    
+                               return self::parseJsonLdWebPerson($siteinfo, $jsonld);
+                       case 'AudioObject':
+                       case 'Audio':
+                               return self::parseJsonLdMediaObject($siteinfo, $jsonld, 'audio');
+                       case 'VideoObject':
+                               return self::parseJsonLdMediaObject($siteinfo, $jsonld, 'video');
+                       case 'ImageObject':
+                               return self::parseJsonLdMediaObject($siteinfo, $jsonld, 'images');
+                       default:
+                               Logger::info('Unknown type', ['type' => $type, 'url' => $siteinfo['url']]);
+                               return $siteinfo;
+               }
+       }
+
+       /**
+        * Fetch author and publisher data
+        *
+        * @param array $siteinfo
+        * @param array $jsonld
+        * @return array siteinfo
+        */
+       private static function parseJsonLdAuthor(array $siteinfo, array $jsonld)
+       {
+               $jsonldinfo = [];
+
+               if (!empty($jsonld['publisher']) && is_array($jsonld['publisher'])) {
+                       $content = JsonLD::fetchElement($jsonld, 'publisher', 'name');
+                       if (!empty($content) && is_string($content)) {
+                               $jsonldinfo['publisher_name'] = trim($content);
+                       }
+
+                       $content = JsonLD::fetchElement($jsonld, 'publisher', 'sameAs');
+                       if (!empty($content) && is_string($content)) {
+                               $jsonldinfo['publisher_url'] = trim($content);
+                       }
+
+                       $content = JsonLD::fetchElement($jsonld, 'publisher', 'url');
+                       if (!empty($content) && is_string($content)) {
+                               $jsonldinfo['publisher_url'] = trim($content);
+                       }
+
+                       $brand = JsonLD::fetchElement($jsonld, 'publisher', 'brand', '@type', 'Organization');
+                       if (!empty($brand) && is_array($brand)) {
+                               $content = JsonLD::fetchElement($brand, 'name');
+                               if (!empty($content) && is_string($content)) {
+                                       $jsonldinfo['publisher_name'] = trim($content);
+                               }
+
+                               $content = JsonLD::fetchElement($brand, 'sameAs');
+                               if (!empty($content) && is_string($content)) {
+                                       $jsonldinfo['publisher_url'] = trim($content);
+                               }
+
+                               $content = JsonLD::fetchElement($brand, 'url');
+                               if (!empty($content) && is_string($content)) {
+                                       $jsonldinfo['publisher_url'] = trim($content);
+                               }
+
+                               $content = JsonLD::fetchElement($brand, 'logo', 'url');
+                               if (!empty($content) && is_string($content)) {
+                                       $jsonldinfo['publisher_img'] = trim($content);
+                               }
+                       }
+
+                       $logo = JsonLD::fetchElement($jsonld, 'publisher', 'logo');
+                       if (!empty($logo) && is_array($logo)) {
+                               $content = JsonLD::fetchElement($logo, 'url');
+                               if (!empty($content) && is_string($content)) {
+                                       $jsonldinfo['publisher_img'] = trim($content);
+                               }
+                       }
+               } elseif (!empty($jsonld['publisher']) && is_string($jsonld['publisher'])) {
+                       $jsonldinfo['publisher_name'] = trim($jsonld['publisher']);
+               }
+
+               if (!empty($jsonld['author']) && is_array($jsonld['author'])) {
+                       $content = JsonLD::fetchElement($jsonld, 'author', 'name');
+                       if (!empty($content) && is_string($content)) {
+                               $jsonldinfo['author_name'] = trim($content);
+                       }
+
+                       $content = JsonLD::fetchElement($jsonld, 'author', 'sameAs');
+                       if (!empty($content) && is_string($content)) {
+                               $jsonldinfo['author_url'] = trim($content);
+                       }
+
+                       $content = JsonLD::fetchElement($jsonld, 'author', 'url');
+                       if (!empty($content) && is_string($content)) {
+                               $jsonldinfo['author_url'] = trim($content);
+                       }
+
+                       $logo = JsonLD::fetchElement($jsonld, 'author', 'logo');
+                       if (!empty($logo) && is_array($logo)) {
+                               $content = JsonLD::fetchElement($logo, 'url');
+                               if (!empty($content) && is_string($content)) {
+                                       $jsonldinfo['author_img'] = trim($content);
+                               }
+                       }
+               } elseif (!empty($jsonld['author']) && is_string($jsonld['author'])) {
+                       $jsonldinfo['author_name'] = trim($jsonld['author']);
+               }
+
+               Logger::info('Fetched Author information', ['fetched' => $jsonldinfo]);
+
+               return array_merge($siteinfo, $jsonldinfo);
+       }
+
+       /**
+        * Fetch data from the provided JSON-LD Article type
+        * @see https://schema.org/Article
+        *
+        * @param array $siteinfo
+        * @param array $jsonld
+        * @return array siteinfo
+        */
+       private static function parseJsonLdArticle(array $siteinfo, array $jsonld)
+       {
+               $jsonldinfo = [];
+
+               $content = JsonLD::fetchElement($jsonld, 'headline');
+               if (!empty($content) && is_string($content)) {
+                       $jsonldinfo['title'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'alternativeHeadline');
+               if (!empty($content) && is_string($content) && (($jsonldinfo['title'] ?? '') != trim($content))) {
+                       $jsonldinfo['alternative_title'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'description');
+               if (!empty($content) && is_string($content)) {
+                       $jsonldinfo['text'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'thumbnailUrl');
+               if (!empty($content)) {
+                       $jsonldinfo['image'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'image', 'url', '@type', 'ImageObject');
+               if (!empty($content) && is_string($content)) {
+                       $jsonldinfo['image'] = trim($content);
+               }
+
+               if (!empty($jsonld['keywords']) && !is_array($jsonld['keywords'])) {
+                       $content = JsonLD::fetchElement($jsonld, 'keywords');
+                       if (!empty($content)) {
+                               $siteinfo['keywords'] = [];
+                               $keywords = explode(',', $content);
+                               foreach ($keywords as $keyword) {
+                                       $siteinfo['keywords'][] = trim($keyword);
+                               }
+                       }
+               } else {
+                       $content = JsonLD::fetchElementArray($jsonld, 'keywords');
+                       if (!empty($content) && is_array($content)) {
+                               $jsonldinfo['keywords'] = $content;
+                       }
+               }
+
+               $jsonldinfo = self::parseJsonLdAuthor($jsonldinfo, $jsonld);
+
+               Logger::info('Fetched article information', ['url' => $siteinfo['url'], 'fetched' => $jsonldinfo]);
+
+               return array_merge($siteinfo, $jsonldinfo);
+       }
+
+       /**
+        * Fetch data from the provided JSON-LD WebPage type
+        * @see https://schema.org/WebPage
+        *
+        * @param array $siteinfo
+        * @param array $jsonld
+        * @return array siteinfo
+        */
+       private static function parseJsonLdWebPage(array $siteinfo, array $jsonld)
+       {
+               $jsonldinfo = [];
+
+               $content = JsonLD::fetchElement($jsonld, 'name');
+               if (!empty($content)) {
+                       $jsonldinfo['title'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'description');
+               if (!empty($content)) {
+                       $jsonldinfo['text'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'image');
+               if (!empty($content)) {
+                       $jsonldinfo['image'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'thumbnailUrl');
+               if (!empty($content)) {
+                       $jsonldinfo['image'] = trim($content);
+               }
+
+               $jsonldinfo = self::parseJsonLdAuthor($jsonldinfo, $jsonld);
+
+               Logger::info('Fetched WebPage information', ['url' => $siteinfo['url'], 'fetched' => $jsonldinfo]);
+
+               return array_merge($siteinfo, $jsonldinfo);
+       }
+
+       /**
+        * Fetch data from the provided JSON-LD WebSite type
+        * @see https://schema.org/WebSite
+        *
+        * @param array $siteinfo
+        * @param array $jsonld
+        * @return array siteinfo
+        */
+       private static function parseJsonLdWebSite(array $siteinfo, array $jsonld)
+       {
+               $jsonldinfo = [];
+
+               $content = JsonLD::fetchElement($jsonld, 'name');
+               if (!empty($content)) {
+                       $jsonldinfo['publisher_name'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'description');
+               if (!empty($content)) {
+                       $jsonldinfo['publisher_description'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'url');
+               if (!empty($content)) {
+                       $jsonldinfo['publisher_url'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'thumbnailUrl');
+               if (!empty($content)) {
+                       $jsonldinfo['image'] = trim($content);
+               }
+
+               $jsonldinfo = self::parseJsonLdAuthor($jsonldinfo, $jsonld);
+
+               Logger::info('Fetched WebSite information', ['url' => $siteinfo['url'], 'fetched' => $jsonldinfo]);
+               return array_merge($siteinfo, $jsonldinfo);
+       }
+
+       /**
+        * Fetch data from the provided JSON-LD Organization type
+        * @see https://schema.org/Organization
+        *
+        * @param array $siteinfo
+        * @param array $jsonld
+        * @return array siteinfo
+        */
+       private static function parseJsonLdWebOrganization(array $siteinfo, array $jsonld)
+       {
+               $jsonldinfo = [];
+
+               $content = JsonLD::fetchElement($jsonld, 'name');
+               if (!empty($content)) {
+                       $jsonldinfo['publisher_name'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'description');
+               if (!empty($content)) {
+                       $jsonldinfo['publisher_description'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'sameAs');
+               if (!empty($content) && is_string($content)) {
+                       $jsonldinfo['publisher_url'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'url');
+               if (!empty($content)) {
+                       $jsonldinfo['publisher_url'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'logo', 'url', '@type', 'ImageObject');
+               if (!empty($content)) {
+                       $jsonldinfo['publisher_img'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'brand', 'name', '@type', 'Organization');
+               if (!empty($content)) {
+                       $jsonldinfo['publisher_name'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'brand', 'url', '@type', 'Organization');
+               if (!empty($content)) {
+                       $jsonldinfo['publisher_url'] = trim($content);
+               }
+
+               Logger::info('Fetched Organization information', ['url' => $siteinfo['url'], 'fetched' => $jsonldinfo]);
+               return array_merge($siteinfo, $jsonldinfo);
+       }
+
+       /**
+        * Fetch data from the provided JSON-LD Person type
+        * @see https://schema.org/Person
+        *
+        * @param array $siteinfo
+        * @param array $jsonld
+        * @return array siteinfo
+        */
+       private static function parseJsonLdWebPerson(array $siteinfo, array $jsonld)
+       {
+               $jsonldinfo = [];
+
+               $content = JsonLD::fetchElement($jsonld, 'name');
+               if (!empty($content)) {
+                       $jsonldinfo['author_name'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'description');
+               if (!empty($content)) {
+                       $jsonldinfo['author_description'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'sameAs');
+               if (!empty($content) && is_string($content)) {
+                       $jsonldinfo['author_url'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'url');
+               if (!empty($content)) {
+                       $jsonldinfo['author_url'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'image', 'url', '@type', 'ImageObject');
+               if (!empty($content)) {
+                       $jsonldinfo['author_img'] = trim($content);
+               }
+
+               Logger::info('Fetched Person information', ['url' => $siteinfo['url'], 'fetched' => $jsonldinfo]);
+               return array_merge($siteinfo, $jsonldinfo);
+       }
+
+       /**
+        * Fetch data from the provided JSON-LD MediaObject type
+        * @see https://schema.org/MediaObject
+        *
+        * @param array $siteinfo
+        * @param array $jsonld
+        * @return array siteinfo
+        */
+       private static function parseJsonLdMediaObject(array $siteinfo, array $jsonld, string $name)
+       {
+               $media = [];
+
+               $content = JsonLD::fetchElement($jsonld, 'caption');
+               if (!empty($content)) {
+                       $media['caption'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'url');
+               if (!empty($content)) {
+                       $media['url'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'mainEntityOfPage');
+               if (!empty($content)) {
+                       $media['main'] = Strings::compareLink($content, $siteinfo['url']);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'description');
+               if (!empty($content)) {
+                       $media['description'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'name');
+               if (!empty($content) && (($media['description'] ?? '') != trim($content))) {
+                       $media['name'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'contentUrl');
+               if (!empty($content)) {
+                       $media['content'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'embedUrl');
+               if (!empty($content)) {
+                       $media['embed'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'height');
+               if (!empty($content)) {
+                       $media['height'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'width');
+               if (!empty($content)) {
+                       $media['width'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'image');
+               if (!empty($content)) {
+                       $media['image'] = trim($content);
+               }
+
+               $content = JsonLD::fetchElement($jsonld, 'thumbnailUrl');
+               if (!empty($content) && (($media['image'] ?? '') != trim($content))) {
+                       if (!empty($media['image'])) {
+                               $media['preview'] = trim($content);
+                       } else {
+                               $media['image'] = trim($content);
+                       }
+               }
+
+               Logger::info('Fetched Media information', ['url' => $siteinfo['url'], 'fetched' => $media]);
+               $siteinfo[$name][] = $media;
+               return $siteinfo;
+       }
 }