#3009 allow filtering of mqtt topics and payloads (#3037)

* Allow filtering of attributes in mqtt json payload or published attributes

* Add test for mqtt_attribute_filter

Just doing attribute_and_json should be fine as the code changes are run before this. Doing this tests lets us varify both json or seperate topic get properly filtered.

* Add test for mqtt_attribute_filter on group

* Rename mqtt_attribute_filter to filtered_attributes

lib/controller.js

@@ -285,6 +285,11 @@ class Controller {
             attributes.forEach((a) => messagePayload.device[a] = device[a]);
         }
 
+        // filter mqtt message attributes
+        if (entity.settings.filtered_attributes) {
+            entity.settings.filtered_attributes.forEach((a) => delete messagePayload[a]);
+        }
+
         this.eventBus.emit('publishEntityState', {payload: messagePayload, entity});
 
         if (Object.entries(messagePayload).length) {