Fix frontend not working when MQTT broker is offline. https://github.com/nurikk/z2m-frontend/issues/589

lib/extension/frontend.js

@@ -19,8 +19,8 @@ class Frontend extends Extension {
         this.onRequest = this.onRequest.bind(this);
         this.onUpgrade = this.onUpgrade.bind(this);
         this.mqttBaseTopic = settings.get().mqtt.base_topic;
-        this.onMQTTPublishedMessage = this.onMQTTPublishedMessage.bind(this);
-        this.mqtt.on('publishedMessage', this.onMQTTPublishedMessage);
+        this.onMQTTPublishMessage = this.onMQTTPublishMessage.bind(this);
+        this.mqtt.on('publishMessage', this.onMQTTPublishMessage);
         this.onWebSocketConnection = this.onWebSocketConnection.bind(this);
         this.server = http.createServer(this.onRequest);
         this.server.on('upgrade', this.onUpgrade);
@@ -106,7 +106,7 @@ class Frontend extends Extension {
         }
     }
 
-    onMQTTPublishedMessage(data) {
+    onMQTTPublishMessage(data) {
         let {topic, payload, options} = data;
         if (topic.startsWith(`${this.mqttBaseTopic}/`)) {
             // Send topic without base_topic

lib/mqtt.js

@@ -116,6 +116,8 @@ class MQTT extends events.EventEmitter {
             this.publishedTopics.add(topic);
         }
 
+        this.emit('publishMessage', {topic, payload, options});
+
         if (!this.isConnected()) {
             if (!skipLog) {
                 logger.error(`Not connected to MQTT server!`);
@@ -135,7 +137,6 @@ class MQTT extends events.EventEmitter {
 
         return new Promise((resolve) => {
             this.client.publish(topic, payload, actualOptions, () => {
-                this.emit('publishedMessage', {topic, payload, options});
                 resolve();
             });
         });