Fixed CORS issue and added chat spam safeguard

src/index.js

@@ -16,6 +16,13 @@ var ns = {
     tanks: io.of("/tanks")
 };
 
+// Allow CORS from ARNweb.nl
+app.use(function (req, res, next) {
+    res.header("Access-Control-Allow-Origin", "https://arnweb.nl");
+    res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
+    next();
+});
+
 // Request documentation
 app.get("/", (req, res) =>
     res.status(200).sendFile(path.resolve(__dirname + "/../html/index.html"))

src/services/chat.js

@@ -38,6 +38,7 @@ function handle(io, socket) {
 
     // Handle messages
     socket.on("message_send", function (message) {
+        if (socket.username) {
             // Build message data for clients
             message = striptags(message, "<br />");
             if (message !== "") {
@@ -53,6 +54,7 @@ function handle(io, socket) {
             } else {
                 socket.emit("message_receive", serverMsg("Empty messages will not be sent."));
             }
+        }
     });
 }