Prints version from presence if available.

modules/xmpp/ChatRoom.js

@@ -345,6 +345,7 @@ export default class ChatRoom extends Listenable {
             member.status = statusEl.textContent || '';
         }
         let hasStatusUpdate = false;
+        let hasVersionUpdate = false;
         const xElement
             = pres.getElementsByTagNameNS(
                 'http://jabber.org/protocol/muc#user', 'x')[0];
@@ -435,6 +436,19 @@ export default class ChatRoom extends Listenable {
             case 'identity':
                 member.identity = extractIdentityInformation(node);
                 break;
+            case 'stat': {
+                const { attributes } = node;
+
+                if (!attributes) {
+                    break;
+                }
+                const { name } = attributes;
+
+                if (name === 'version') {
+                    member.version = attributes.value;
+                }
+                break;
+            }
             }
         }
 
@@ -471,6 +485,7 @@ export default class ChatRoom extends Listenable {
             this.members[from] = member;
             logger.log('entered', from, member);
             hasStatusUpdate = member.status !== undefined;
+            hasVersionUpdate = member.version !== undefined;
             if (member.isFocus) {
                 this._initFocus(from, jid);
             } else {
@@ -537,6 +552,11 @@ export default class ChatRoom extends Listenable {
                 hasStatusUpdate = true;
                 memberOfThis.status = member.status;
             }
+
+            if (memberOfThis.version !== member.version) {
+                hasVersionUpdate = true;
+                memberOfThis.version = member.version;
+            }
         }
 
         // after we had fired member or room joined events, lets fire events
@@ -623,6 +643,10 @@ export default class ChatRoom extends Listenable {
                 from,
                 member.status);
         }
+
+        if (hasVersionUpdate) {
+            logger.info(`Received version for ${jid}: ${member.version}`);
+        }
     }
 
     /**