add senml rewriter

authhook/utils/router.js

@@ -6,6 +6,15 @@ function rewriteTopic(topic, op, groupid, clientid, output) {
         case '@msg'    :
                     return modify.insertWordIntoTopic(topic, '!'+groupid, 1);
 
+        case '@feed'    :
+                    if (chunk[1] == 'senml') {
+                        if (chunk[2]=='update' || chunk[2].startsWith('update:')) {
+                            return modify.insertWordIntoTopic(topic, clientid, 3);
+                        }
+                        else return topic;
+                    }
+                    else return topic;
+
         case '@shadow' :
                     if (chunk[1] == 'data') {
                         if (chunk[2]=='get' || chunk[2]=='update' || chunk[2].startsWith('get:') || chunk[2].startsWith('update:')) {