added client folder

Author: danil-nizamov

.DS_Store

@@ -57,45 +57,45 @@ function serveFile(filePath, res) {
 // Handle POST requests
 function handlePostRequest(req, res) {
   const parsedUrl = url.parse(req.url, true);
-  
+
   if (parsedUrl.pathname === '/message') {
     let body = '';
-    
+
     req.on('data', chunk => {
       body += chunk.toString();
     });
-    
+
     req.on('end', () => {
       try {
         const data = JSON.parse(body);
         const message = data.message;
-        
+
         if (!message) {
           res.writeHead(400, { 'Content-Type': 'application/json' });
           res.end(JSON.stringify({ error: 'Message is required' }));
           return;
         }
-        
+
         // Check if WebSocket is available
         if (!isWebSocketAvailable) {
           res.writeHead(503, { 'Content-Type': 'application/json' });
-          res.end(JSON.stringify({ 
-            error: 'WebSocket functionality not available', 
-            details: 'Install the ws package with: npm install ws' 
+          res.end(JSON.stringify({
+            error: 'WebSocket functionality not available',
+            details: 'Install the ws package with: npm install ws'
           }));
           return;
         }
-        
+
         // Broadcast message to all connected WebSocket clients
         wsClients.forEach(client => {
           if (client.readyState === WebSocket.OPEN) {
             client.send(JSON.stringify({ type: 'message', message: message }));
           }
         });
-        
+
         res.writeHead(200, { 'Content-Type': 'application/json' });
         res.end(JSON.stringify({ success: true, clientCount: wsClients.size }));
-        
+
       } catch (error) {
         res.writeHead(400, { 'Content-Type': 'application/json' });
         res.end(JSON.stringify({ error: 'Invalid JSON' }));
@@ -111,7 +111,7 @@ function handlePostRequest(req, res) {
 const server = http.createServer((req, res) => {
   const parsedUrl = url.parse(req.url, true);
   let pathname = parsedUrl.pathname;
-  
+
   // Handle POST requests
   if (req.method === 'POST') {
     handlePostRequest(req, res);
@@ -124,10 +124,11 @@ const server = http.createServer((req, res) => {
   }
 
   // Remove leading slash and construct file path
-  const filePath = path.join(__dirname, pathname.substring(1));
+  const filePath = path.join(__dirname, 'client', pathname.substring(1));
 
   // Security check - prevent directory traversal
-  if (!filePath.startsWith(__dirname)) {
+  const clientDir = path.join(__dirname, 'client');
+  if (!filePath.startsWith(clientDir)) {
     res.writeHead(403, { 'Content-Type': 'text/plain' });
     res.end('Forbidden');
     return;
@@ -153,12 +154,12 @@ if (isWebSocketAvailable) {
   wss.on('connection', (ws) => {
     console.log('New WebSocket client connected');
     wsClients.add(ws);
-    
+
     ws.on('close', () => {
       console.log('WebSocket client disconnected');
       wsClients.delete(ws);
     });
-    
+
     ws.on('error', (error) => {
       console.error('WebSocket error:', error);
       wsClients.delete(ws);