websocket chat + node.js - Skicka meddelande vid disconnect

--- a/nodejs/chat/chat-server.js
+++ b/nodejs/chat/chat-server.js
@@ -88,7 +88,21 @@ wsServer.on('request', function(request) {
                 console.log((new Date()) + ' Received Message from '
                             + userName + ': ' + message.utf8Data);
                 
+                send_msg(message, userName, userColor);
-                // we want to keep history of all sent messages
-                var obj = {
-                    time: (new Date()).getTime(),
-                    text: htmlEntities(message.utf8Data),
-                    author: userName,
-                    color: userColor
-                };
-                history.push(obj);
-                history = history.slice(-100);
-
-                // broadcast message to all connected clients
-                var json = JSON.stringify({ type:'message', data: obj });
-                for (var i=0; i < clients.length; i++) {
-                    clients[i].sendUTF(json);
-                }
             }
         }
     });
@@ -98,7 +112,6 @@ wsServer.on('request', function(request) {
         if (userName !== false && userColor !== false) {
             console.log((new Date()) + " Peer "
                 + connection.remoteAddress + " disconnected.");
+            send_msg({utf8Data: "*** detached from server ***" }, userName, userColor);
             // remove user from the list of connected clients
             clients.splice(index, 1);
             // push back user's color to be reused by another user
@@ -107,20 +120,3 @@ wsServer.on('request', function(request) {
     });
 
 });
\ No newline at end of file
+
+function send_msg(message, userName, userColor) {
+    var obj = {
+        time: (new Date()).getTime(),
+        text: htmlEntities(message.utf8Data),
+        author: userName,
+        color: userColor
+    };
+    // we want to keep history of all sent messages
+    history.push(obj);
+    history = history.slice(-100);
+    // broadcast message to all connected clients
+    var json = JSON.stringify({ type: 'message', data: obj });
+    for (var i = 0; i < clients.length; i++) {
+        clients[i].sendUTF(json);
+    }
+}

colors.sort(function(a,b) { return Math.random() > 0.5; } );