Support for twitter cards (in both directions)

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";

mod/parse_url.php

@@ -52,6 +52,9 @@ function completeurl($url, $scheme) {
 
 function parseurl_getsiteinfo($url, $no_guessing = false) {
 	$siteinfo = array();
+
+	$siteinfo["type"] = "link";
+
 	$ch = curl_init();
 	curl_setopt($ch, CURLOPT_URL, $url);
 	curl_setopt($ch, CURLOPT_HEADER, 1);
@@ -165,6 +168,18 @@ function parseurl_getsiteinfo($url, $no_guessing = false) {
 			case "description":
 				$siteinfo["text"] = $attr["content"];
 				break;
+			case "twitter:image":
+				$siteinfo["image"] = $attr["content"];
+				break;
+			case "twitter:card":
+				$siteinfo["type"] = $attr["content"];
+				break;
+			case "twitter:description":
+				$siteinfo["text"] = $attr["content"];
+				break;
+			case "twitter:title":
+				$siteinfo["title"] = $attr["content"];
+				break;
 			case "dc.title":
 				$siteinfo["title"] = $attr["content"];
 				break;
@@ -311,9 +326,9 @@ function parse_url_content(&$a) {
 	logger('parse_url: ' . $url);
 
 	if($textmode)
-		$template = '[bookmark=%s]%s[/bookmark]%s' . $br;
+		$template = '[bookmark=%s]%s[/bookmark]%s';
 	else
-		$template = "<a class=\"bookmark\" href=\"%s\" >%s</a>%s<br />";
+		$template = "<a class=\"bookmark\" href=\"%s\" >%s</a>%s";
 
 	$arr = array('url' => $url, 'text' => '');
 
@@ -386,9 +401,10 @@ function parse_url_content(&$a) {
 			$text = '<blockquote>'.htmlspecialchars(trim($text)).'</blockquote>';
 	}
 
-	if($image) {
+	if($image)
 		$text = $br.$br.$image.$text;
-	}
+	else
+		$text = $br.$text;
 
 	$title = str_replace(array("\r","\n"),array('',''),$title);
 
@@ -398,7 +414,10 @@ function parse_url_content(&$a) {
 
 	$sitedata .=  trim($result);
 
-	echo "[class=type-link]".$sitedata."[/class]";
+	if (($siteinfo["type"] != "photo"))
+		echo "[class=type-link]".$sitedata."[/class]";
+	else
+		echo "[class=type-photo]".$title.$br.$image."[/class]";
 
 	killme();
 }

mod/photos.php

@@ -1368,7 +1368,11 @@ function photos_content(&$a) {
 		$photo = array(
 			'href' => $a->get_baseurl() . '/photo/' . $hires['resource-id'] . '-' . $hires['scale'] . '.' . $phototypes[$hires['type']],
 			'title'=> t('View Full Size'),
-			'src'  => $a->get_baseurl() . '/photo/' . $lores['resource-id'] . '-' . $lores['scale'] . '.' . $phototypes[$lores['type']] . '?f=&_u=' . datetime_convert('','','','ymdhis')
+			'src'  => $a->get_baseurl() . '/photo/' . $lores['resource-id'] . '-' . $lores['scale'] . '.' . $phototypes[$lores['type']] . '?f=&_u=' . datetime_convert('','','','ymdhis'),
+			'height' => $hires['height'],
+			'width' => $hires['width'],
+			'album' => $hires['album'],
+			'filename' => $hires['filename'],
 		);
 
 		if($nextlink)
@@ -1723,6 +1727,12 @@ function photos_content(&$a) {
 			'$paginate' => $paginate,
 		));
 
+		$a->page['htmlhead'] .= "\n".'<meta name="twitter:card" content="photo" />'."\n";
+		$a->page['htmlhead'] .= '<meta name="twitter:title" content="'.$photo["album"].'" />'."\n";
+		$a->page['htmlhead'] .= '<meta name="twitter:image" content="'.$photo["href"].'" />'."\n";
+		$a->page['htmlhead'] .= '<meta name="twitter:image:width" content="'.$photo["width"].'" />'."\n";
+		$a->page['htmlhead'] .= '<meta name="twitter:image:height" content="'.$photo["height"].'" />'."\n";
+
 		return $o;
 	}