Send URL we publish

Webmention and Pingback both need the exact URL we are going to claim to link to to be present in our HTML source, so send them our actual original link.

Webmention clients are supposed to resolve this link.  Pingback clients may still fail on shortened links.

plugins/Linkback/LinkbackPlugin.php

@@ -107,11 +107,15 @@ class LinkbackPlugin extends Plugin
 
         $wm = $this->getWebmention($result);
         if(!empty($wm)) {
-            $this->webmention($result->final_url, $wm);
+            // It is the webmention receiver's job to resolve source
+            // Ref: https://github.com/converspace/webmention/issues/43
+            $this->webmention($url, $wm);
         } else {
             $pb = $this->getPingback($result);
             if (!empty($pb)) {
-                $this->pingback($result->final_url, $pb);
+                // Pingback still looks for exact URL in our source, so we
+                // must send what we have
+                $this->pingback($url, $pb);
             } else {
                 $tb = $this->getTrackback($result);
                 if (!empty($tb)) {