can sub group

authhook/auth_on_subscribe.js

 var config = require('config');
+
 // https://github.com/isaacs/node-lru-cache
-var LRU = require("lru-cache") ,
+var LRU = require("lru-cache"),
     cache = LRU({
         max: 500,
         maxAge: 1000 * 60 * 5
@@ -12,13 +13,13 @@ function authCheck(client_id, token, topic, callback) {
     callback(true);
 }
 
-module.exports = function(options={}) {
+module.exports = function (options = {}) {
 
     debug = options.debug || false;
 
-    return function(req, res, next) {
+    return function (req, res, next) {
 
-        if (debug) {
+        if (options.debug) {
             console.log('auth_on_subscribe-------------');
             console.log(req.body);
         }
@@ -27,24 +28,35 @@ module.exports = function(options={}) {
             var authstatus;
             var topic = req.body.topics[0].topic;
 
-            var cachekey = 'sub:'+req.body.client_id +':'+ req.body.username+':'+topic;
+            var cachekey = 'sub:' + req.body.client_id + ':' + req.body.username + ':' + topic;
             var authstatus = cache.get(cachekey);
 
-            if (typeof(authstatus)=='undefined') {
+            // Set Response
+            var getGroupID = require('./utils/getGroupID').getGroupID
+            getGroupID(req.body.username, req.body.client_id, (_id) => { // get groupID
+                // console.log(_id)
+                var _ftopic = require('./utils/getTopic').getTopic(topic, _id) // get topic where concat with groupID
+                var _topic = [{ // setTopic for response
+                    'topic': _ftopic,
+                    'qos': 0
+                }]
+                var response = {
+                    'result': 'ok',
+                    'topics': _topic
+                }
+                
+                if (typeof (authstatus) == 'undefined') {
                     // cache missed
-                authCheck(req.body.client_id, req.body.username, topic, function(result) {
+                    authCheck(req.body.client_id, req.body.username, topic, function (result) {
                         cache.set(cachekey, result);
-                    res.send({
-                        "result": result?"ok":"no"
-                    });
+                        res.send(response);
                     });
                 }
                 else {
-                res.send({
-                    "result": authstatus?"ok":"no"
-                });
+                    res.send(response);
                 }
                 next();
+            })
         }
         else {
             res.send({
@@ -54,3 +66,4 @@ module.exports = function(options={}) {
         }
     }
 }
+