fix url mismatches of a single trailing slash for feed author/owner comparisons; update diaspora_compat

include/bb2diaspora.php

@@ -131,10 +131,8 @@ function diaspora2bb($s,$use_zrl = false) {
 //	$s = preg_replace('/\@\{(.+?)\; (.+?)\@(.+?)\}/','@[url=https://$3/u/$2]$1[/url]',$s);
 
 	// first try plustags
-	// nope don't do it. This will cause mis-attributed messages and runaway delivery chains -
-	// Diaspora doesn't have sufficient delivery loop detection.
-	// Leave the next line commented and leave this description here so future readers will know why.
-	//	$s = preg_replace_callback('/\@\{(.+?)\; (.+?)\@(.+?)\}\+/','diaspora_mention_callback',$s);
+
+	$s = preg_replace_callback('/\@\{(.+?)\; (.+?)\@(.+?)\}\+/','diaspora_mention_callback',$s);
 
 	$s = preg_replace_callback('/\@\{(.+?)\; (.+?)\@(.+?)\}/','diaspora_mention_callback',$s);
 

include/follow.php

@@ -19,6 +19,9 @@ function new_contact($uid,$url,$channel,$interactive = false, $confirm = false)
 	$is_red = false;
 	$is_http = ((strpos($url,'://') !== false) ? true : false);
 
+	if($is_http && substr($url,-1,1) === '/')
+		$url = substr($url,0,-1);
+
 	if(! allowed_url($url)) {
 		$result['message'] = t('Channel is blocked on this site.');
 		return $result;

include/items.php

@@ -1424,6 +1424,9 @@ function get_atom_elements($feed,$item,&$author) {
 		$author['author_link'] = unxmlify($feed->get_permalink());
 	}
 
+	if(substr($author['author_link'],-1,1) == '/')
+		$author['author_link'] = substr($author['author_link'],0,-1);
+
 	$res['mid'] = base64url_encode(unxmlify($item->get_id()));
 	$res['title'] = unxmlify($item->get_title());
 	$res['body'] = unxmlify($item->get_content());