Add MQTT via WebSocket communication option (#1544)

* Add MQTT via WebSocket communication option

Add option in MQTT broker configuration node to enable MQTT via WebSoket comunication

* MQTT over WS error correction

Minimal correction of values and erase debug console.log unnecessary

* original package.json

Erase some changes on grunt build at package.json. Erase package-lock.json and back to the original package.json

* .gitignore

* .gitignore again

* No tabs

nodes/core/io/10-mqtt.html

@@ -187,6 +187,10 @@
                     <label style="width: auto; margin-left: 20px; margin-right: 10px;" for="node-config-input-tls"><span data-i18n="mqtt.label.tls-config"></span></label><input style="width: 300px;" type="text" id="node-config-input-tls">
                 </div>
             </div>
+            <div class="form-row">
+                <input type="checkbox" id="node-config-input-usews" style="display: inline-block; width: auto; vertical-align: top;">
+                <label for="node-config-input-usews" style="width: auto;" data-i18n="mqtt.label.use-ws"></label>
+            </div>
             <div class="form-row">
                 <label for="node-config-input-clientid"><i class="fa fa-tag"></i> <span data-i18n="mqtt.label.clientid"></span></label>
                 <input type="text" id="node-config-input-clientid" data-i18n="[placeholder]mqtt.placeholder.clientid">
@@ -283,6 +287,7 @@
                     }
                 }},
             usetls: {value: false},
+            usews: {value: false},
             verifyservercert: { value: false},
             compatmode: { value: true},
             keepalive: {value:60,validate:RED.validators.number()},
@@ -344,6 +349,10 @@
                 this.usetls = false;
                 $("#node-config-input-usetls").prop("checked",false);
             }
+            if (typeof this.usews === 'undefined') {
+                this.usews = false;
+                $("#node-config-input-usews").prop('checked', false);
+            }
             if (typeof this.compatmode === 'undefined') {
                 this.compatmode = true;
                 $("#node-config-input-compatmode").prop('checked', true);

nodes/core/io/10-mqtt.js

@@ -36,6 +36,7 @@ module.exports = function(RED) {
         this.port = n.port;
         this.clientid = n.clientid;
         this.usetls = n.usetls;
+        this.usews = n.usews;
         this.verifyservercert = n.verifyservercert;
         this.compatmode = n.compatmode;
         this.keepalive = n.keepalive;
@@ -69,6 +70,9 @@ module.exports = function(RED) {
         if (typeof this.usetls === 'undefined') {
             this.usetls = false;
         }
+        if (typeof this.usews === 'undefined') {
+            this.usews = false;
+        }
         if (typeof this.compatmode === 'undefined') {
             this.compatmode = true;
         }
@@ -86,10 +90,18 @@ module.exports = function(RED) {
 
         // Create the URL to pass in to the MQTT.js library
         if (this.brokerurl === "") {
-            if (this.usetls) {
+            if (this.usews) {
-                this.brokerurl="mqtts://";
+                if (this.usetls) {
+                    this.brokerurl="wss://";
+                } else {
+                    this.brokerurl="ws://";
+				}
             } else {
-                this.brokerurl="mqtt://";
+                if (this.usetls) {
+                    this.brokerurl="mqtts://";
+                } else {
+                     this.brokerurl="mqtt://";
+                }
             }
             if (this.broker !== "") {
                 this.brokerurl = this.brokerurl+this.broker+":"+this.port;

nodes/core/locales/en-US/messages.json

@@ -314,6 +314,7 @@
             "keepalive": "Keep alive time (s)",
             "cleansession": "Use clean session",
             "use-tls": "Enable secure (SSL/TLS) connection",
+            "use-ws": "Enable MQTT over WebSocket connection",
             "tls-config":"TLS Configuration",
             "verify-server-cert":"Verify server certificate",
             "compatmode": "Use legacy MQTT 3.1 support"