Built-in tool _webmcp_browser-info para ver navegadores conectados

Agrega metadata tracking de browsers (userAgent, URL, hostname,
idioma, resolucion, timestamp) y tool browser-info para consultarla.

src/websocket-server.js

@@ -54,6 +54,9 @@ const wss = new WebSocketServer({
 // Store active WebSocket connections by channel
 const channels = {};
 
+// Store browser metadata per WebSocket connection
+const clientMetadata = new Map();
+
 // Special channel paths
 const MCP_PATH = '/mcp';
 const REGISTER_PATH = '/register';
@@ -356,6 +359,14 @@ wss.on('connection', (ws, req) => {
                     handleClipboardCopy(data);
                     break;
 
+                case 'clientInfo':
+                    handleClientInfo(ws, data);
+                    break;
+
+                case 'clientInfoResponse':
+                    handleToolResponse(data);
+                    break;
+
                 case 'clearRegistry':
                     handleClearRegistry(ws, data);
                     break;
@@ -391,6 +402,9 @@ wss.on('connection', (ws, req) => {
     ws.on('close', async () => {
         console.error(`Client disconnected from path: ${clientChannel}`);
 
+        // Remove browser metadata
+        clientMetadata.delete(ws);
+
         // Remove from channel
         const channel = channels[clientChannel];
         if (channel) {
@@ -468,6 +482,9 @@ wss.on('connection', (ws, req) => {
     ws.on('error', (error) => {
         console.error('WebSocket error:', error);
 
+        // Remove browser metadata
+        clientMetadata.delete(ws);
+
         // Remove from channel
         const channel = channels[clientChannel];
         if (channel) {
@@ -814,6 +831,46 @@ function handleRemoveTool(ws, data) {
     }
 }
 
+// Handle client info sent by browser on connect
+function handleClientInfo(ws, data) {
+    const { userAgent, url, hostname, language, screenWidth, screenHeight, timestamp } = data;
+    clientMetadata.set(ws, { userAgent, url, hostname, language, screenWidth, screenHeight, timestamp });
+    console.error(`Client info stored for ${hostname}: ${url}`);
+}
+
+// Handle getClientInfo request - collect info from all connected browsers
+function handleGetClientInfo(ws, callerChannel, data) {
+    const { id } = data;
+
+    const clients = [];
+    for (const [channelPath, channelClients] of Object.entries(channels)) {
+        if (channelPath === MCP_PATH || channelPath === REGISTER_PATH) continue;
+        for (const clientWs of channelClients) {
+            const meta = clientMetadata.get(clientWs) || {};
+            clients.push({
+                channel: channelPath,
+                userAgent: meta.userAgent || 'unknown',
+                url: meta.url || 'unknown',
+                hostname: meta.hostname || 'unknown',
+                language: meta.language || 'unknown',
+                screenWidth: meta.screenWidth || 0,
+                screenHeight: meta.screenHeight || 0,
+                connectedSince: meta.timestamp || 0
+            });
+        }
+    }
+
+    const text = clients.length > 0
+        ? JSON.stringify(clients, null, 2)
+        : 'No hay navegadores conectados';
+
+    ws.send(JSON.stringify({
+        id,
+        type: 'toolResponse',
+        result: { content: [{ type: 'text', text }] }
+    }));
+}
+
 // Handle clearing all registries
 function handleClearRegistry(ws, data) {
     const {id} = data;