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<? namespace Bitrix\Main\UrlPreview\Parser; use Bitrix\Main\UrlPreview\HtmlDocument; use Bitrix\Main\UrlPreview\Parser; class OpenGraph extends Parser { /** * Parses HTML documents OpenGraph metadata * * @param HtmlDocument $document HTML document to be parsed. * @return void */ public function handle(HtmlDocument $document) { if($document->getTitle() == '') { $ogTitle = $document->getMetaContent('og:title'); if($ogTitle <> '') { $document->setTitle($ogTitle); } } if($document->getDescription() == '') { $ogDescription = $document->getMetaContent('og:description'); if($ogDescription <> '') { $document->setDescription($ogDescription); } } if($document->getImage() == '') { $ogImage = $document->getMetaContent('og:image:secure_url') ?: $document->getMetaContent('og:image'); if($ogImage <> '') { $document->setImage($ogImage); } } $this->parseVideoData($document); if(!$document->getExtraField('SITE_NAME')) { $ogSiteName = $document->getMetaContent('og:site_name'); if($ogSiteName <> '') { $document->setExtraField('SITE_NAME', $ogSiteName); } } /* Not really opengraph property :), but it's placed in opengraph parser to prevent executing full parser chain just to get favicon */ if(!$document->getExtraField('FAVICON')) { if($favicon = $document->getLinkHref('icon')) { $document->setExtraField('FAVICON', $favicon); } } } protected function parseVideoData(HtmlDocument $document) { if(!$document->getExtraField('VIDEO')) { $ogVideo = $document->getMetaContent('og:video') ?? $document->getMetaContent('og:video:secure_url') ?? $document->getMetaContent('og:video:url') ?? ''; if($ogVideo <> '') { $document->setExtraField('VIDEO', $ogVideo); } } if(!$document->getExtraField('VIDEO_TYPE')) { $ogVideoType = $document->getMetaContent('og:video:type') ?? ''; if($ogVideoType <> '') { $document->setExtraField('VIDEO_TYPE', $ogVideoType); } } if(!$document->getExtraField('VIDEO_WIDTH')) { $ogVideoWidth = $document->getMetaContent('og:video:width') ?? ''; if($ogVideoWidth <> '') { $document->setExtraField('VIDEO_WIDTH', $ogVideoWidth); } } if(!$document->getExtraField('VIDEO_HEIGHT')) { $ogVideoHeight = $document->getMetaContent('og:video:height') ?? ''; if($ogVideoHeight <> '') { $document->setExtraField('VIDEO_HEIGHT', $ogVideoHeight); } } } }
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