Support for twitter cards (in both directions)

[friendica.git] / mod / display.php

diff --git a/mod/display.php b/mod/display.php
index 75e51d5a90e2789cfce24d39dc925e12a02afbdf..116b4a17e3073d2590df08aa56a873f2073fb1e3 100644 (file)
--- a/mod/display.php
+++ b/mod/display.php
@@ -203,6 +203,10 @@ function display_content(&$a, $update = 0) {
                $title = trim(html2plain(bbcode($r[0]["title"], false, false), 0, true));
                $author_name = $r[0]["author-name"];
 
+               $image = "";
+               if ($image == "")
+                       $image = $r[0]["thumb"];
+
                if ($title == "")
                        $title = $author_name;
 
@@ -219,9 +223,16 @@ function display_content(&$a, $update = 0) {
                // Schema.org microdata
                $a->page['htmlhead'] .= '<meta itemprop="name" content="'.$title.'" />'."\n";
                $a->page['htmlhead'] .= '<meta itemprop="description" content="'.$description.'" />'."\n";
-               $a->page['htmlhead'] .= '<meta itemprop="image" content="'.$r[0]["thumb"].'" />'."\n";
+               $a->page['htmlhead'] .= '<meta itemprop="image" content="'.$image.'" />'."\n";
                $a->page['htmlhead'] .= '<meta itemprop="author" content="'.$author_name.'" />'."\n";
 
+               // Twitter cards
+               $a->page['htmlhead'] .= '<meta name="twitter:card" content="summary" />'."\n";
+               $a->page['htmlhead'] .= '<meta name="twitter:title" content="'.$title.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta name="twitter:description" content="'.$description.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta name="twitter:image" content="'.$image.'" />'."\n";
+               $a->page['htmlhead'] .= '<meta name="twitter:url" content="'.$r[0]["plink"].'" />'."\n";
+
                // Dublin Core
                $a->page['htmlhead'] .= '<meta name="DC.title" content="'.$title.'" />'."\n";
                $a->page['htmlhead'] .= '<meta name="DC.description" content="'.$description.'" />'."\n";
@@ -229,7 +240,7 @@ function display_content(&$a, $update = 0) {
                // Open Graph
                $a->page['htmlhead'] .= '<meta property="og:type" content="website" />'."\n";
                $a->page['htmlhead'] .= '<meta property="og:title" content="'.$title.'" />'."\n";
-               $a->page['htmlhead'] .= '<meta property="og:image" content="'.$r[0]["thumb"].'" />'."\n";
+               $a->page['htmlhead'] .= '<meta property="og:image" content="'.$image.'" />'."\n";
                $a->page['htmlhead'] .= '<meta property="og:url" content="'.$r[0]["plink"].'" />'."\n";
                $a->page['htmlhead'] .= '<meta property="og:description" content="'.$description.'" />'."\n";
                $a->page['htmlhead'] .= '<meta name="og:article:author" content="'.$author_name.'" />'."\n";