only send messages to target

raspberry/roberto/views/websocket/routes.py

@@ -59,20 +59,28 @@ def camera():
 
 @socketio.on('message')  # ok
 def webrtc_message(data):
-    sid = request.sid
+    from_sid = request.sid
+    target_sid = None
     #print('Message from {}: {}'.format(sid, data))
     if isinstance(data, str):
         try:
             jsonData = json.loads(data)
-            jsonData['from_sid'] = sid
+            jsonData['from_sid'] = from_sid
+            if 'sid' in jsonData:
+                target_sid = jsonData['sid']
             data = json.dumps(jsonData)
         except json.JSONDecodeError:
             print("could not decode json")
     elif isinstance(data, dict):
-        data['from_sid'] = sid
+        data['from_sid'] = from_sid
+        if 'sid' in data:
+            target_sid = data['sid']
     else:
         print("unknown message type")
-    socketio.emit('message', data=data, room=ROOM, skip_sid=sid)
+    if target_sid:
+        socketio.emit('message', data=data, room=target_sid)
+    else:
+        socketio.emit('message', data=data, room=ROOM, skip_sid=from_sid)
 
 @socketio.on('battery')  # ok
 def battery_message(data):