diff options
| author | Andrew Dolgov <[email protected]> | 2018-05-29 22:04:02 +0300 |
|---|---|---|
| committer | Andrew Dolgov <[email protected]> | 2018-05-29 22:04:02 +0300 |
| commit | f5302247c6eecba217f35173b3f038cc828a7402 (patch) | |
| tree | fe441d5e7190541d0e121d8ee66c185a78af9ff1 /classes | |
| parent | 636164301fa425a40992bc05a70e7cd8e8946163 (diff) | |
share: add support for og:image, etc. metadata for shared articles
Diffstat (limited to 'classes')
| -rwxr-xr-x[-rw-r--r--] | classes/article.php | 42 |
1 files changed, 39 insertions, 3 deletions
diff --git a/classes/article.php b/classes/article.php index edf95b743..c8ee5b931 100644..100755 --- a/classes/article.php +++ b/classes/article.php @@ -629,16 +629,52 @@ class Article extends Handler_Protected { } } + $enclosures = self::get_article_enclosures($line["id"]); + if ($zoom_mode) { header("Content-Type: text/html"); - $rv['content'] .= "<html><head> + $rv['content'] .= "<!DOCTYPE html> + <html><head> <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/> <title>".$line["title"]."</title>". stylesheet_tag("css/default.css")." <link rel=\"shortcut icon\" type=\"image/png\" href=\"images/favicon.png\"> - <link rel=\"icon\" type=\"image/png\" sizes=\"72x72\" href=\"images/favicon-72px.png\"> + <link rel=\"icon\" type=\"image/png\" sizes=\"72x72\" href=\"images/favicon-72px.png\">"; + + $rv['content'] .= "<meta property=\"og:title\" content=\"".htmlspecialchars($line["title"])."\"/>\n"; + $rv['content'] .= "<meta property=\"og:site_name\" content=\"".htmlspecialchars($line["feed_title"])."\"/>\n"; + $rv['content'] .= "<meta property=\"og:description\" content=\"". + htmlspecialchars(truncate_string(strip_tags($line["content"]), 500, "..."))."\"/>\n"; + + $rv['content'] .= "</head>"; + + $og_image = false; + + foreach ($enclosures as $enc) { + if (strpos($enc["content_type"], "image/") !== FALSE) { + $og_image = $enc["content_url"]; + break; + } + } + + if (!$og_image) { + $tmpdoc = new DOMDocument(); + + if (@$tmpdoc->loadHTML(mb_substr($line["content"], 0, 131070))) { + $tmpxpath = new DOMXPath($tmpdoc); + $first_img = $tmpxpath->query("//img")->item(0); + + if ($first_img) { + $og_image = $first_img->getAttribute("src"); + } + } + } + + if ($og_image) { + $rv['content'] .= "<meta property=\"og:image\" content=\"" . htmlspecialchars($og_image) . "\"/>"; + } - </head><body class=\"claro ttrss_utility ttrss_zoom\">"; + $rv['content'] .= "<body class=\"claro ttrss_utility ttrss_zoom\">"; } $rv['content'] .= "<div class=\"postReply\" id=\"POST-$id\">"; |