dont suspend...

Signed-off-by: Joerg Dorgeist <joerg.dorgeist@telekom.de>

background.js

@@ -10,6 +10,8 @@ var PROXY_PORT = 1080;
 // TCP Server Management
 var serverSocketId = null;
 var isListening = false;
+var isInitialized = false;  // Prevent double initialization
+var handlersSetup = false;  // Prevent duplicate event listeners
 
 // SOCKS5 Connection States
 var ConnectionState = {
@@ -383,7 +385,13 @@ function setupConnectionHandlers() {
   chrome.sockets.tcp.onReceiveError.addListener(function(info) {
     var socketId = info.socketId;
     var resultCode = info.resultCode;
+
+    // Error code -100 is ERR_CONNECTION_CLOSED - normal disconnect, not an error
+    if (resultCode === -100) {
+      console.log('[Proxy] Socket ' + socketId + ' connection closed');
+    } else {
       console.error('[Proxy] Receive error on socket ' + socketId + ': ' + resultCode);
+    }
 
     // Clean up connections
     if (connections[socketId]) {
@@ -424,16 +432,29 @@ function setupConnectionHandlers() {
 }
 
 function initializeProxy() {
+  // Prevent double initialization
+  if (isInitialized) {
+    console.log('[Proxy] Already initialized or initializing...');
+    return;
+  }
+  isInitialized = true;
+
   console.log('[Proxy] Initializing Chrome SOCKS Proxy (with tunneling)...');
 
   createServer(PROXY_HOST, PROXY_PORT, function(error, socketId) {
     if (error) {
       console.error('[Proxy] Failed to initialize:', error);
+      isInitialized = false;  // Allow retry on failure
       return;
     }
 
     console.log('[Proxy] SOCKS proxy is running on ' + PROXY_HOST + ':' + PROXY_PORT);
+
+    // Setup handlers only once
+    if (!handlersSetup) {
       setupConnectionHandlers();
+      handlersSetup = true;
+    }
   });
 }
 
@@ -443,7 +464,79 @@ chrome.app.runtime.onLaunched.addListener(function() {
   initializeProxy();
 });
 
+// Chrome App lifecycle - restart when app is restarted
+chrome.app.runtime.onRestarted.addListener(function() {
+  console.log('[Proxy] App restarted');
+  // Reset state and reinitialize
+  isListening = false;
+  isInitialized = false;
+  serverSocketId = null;
+  initializeProxy();
+});
+
+// Handle the app window being closed
+chrome.app.window.onClosed.addListener(function() {
+  console.log('[Proxy] App window closed');
+  // Clean up connections
+  for (var socketId in connections) {
+    try {
+      chrome.sockets.tcp.close(parseInt(socketId));
+    } catch(e) {}
+  }
+  connections = {};
+  reverseConnections = {};
+
+  // Close server socket
+  if (serverSocketId !== null) {
+    try {
+      chrome.sockets.tcpServer.close(serverSocketId);
+    } catch(e) {}
+    serverSocketId = null;
+  }
+  isListening = false;
+  isInitialized = false;
+});
+
 // Also initialize on startup (for apps that are already running)
 initializeProxy();
 
+// ============================================================================
+// KEEP-ALIVE MECHANISM
+// ============================================================================
+
+// Setup keep-alive alarm to prevent Chrome from suspending the app
+chrome.alarms.create('keepAlive', { periodInMinutes: 1 });
+
+chrome.alarms.onAlarm.addListener(function(alarm) {
+  if (alarm.name === 'keepAlive') {
+    // Heartbeat: log activity to keep the app alive
+    console.log('[Proxy] Heartbeat - Proxy is ' + (isListening ? 'active' : 'inactive'));
+
+    // Check if server is still listening, restart if needed
+    if (!isListening && !isInitialized) {
+      console.log('[Proxy] Server not listening, reinitializing...');
+      initializeProxy();
+    }
+
+    // Request keep awake to prevent system sleep (optional)
+    chrome.power.requestKeepAwake('system');
+  }
+});
+
+// Handle when app is suspended and resumed
+chrome.runtime.onSuspend.addListener(function() {
+  console.log('[Proxy] App being suspended...');
+});
+
+chrome.runtime.onSuspendCanceled.addListener(function() {
+  console.log('[Proxy] Suspend canceled - app is active again');
+
+  // Reinitialize if needed after unsuspend
+  if (!isListening) {
+    console.log('[Proxy] Reinitializing after unsuspend...');
+    isInitialized = false;
+    initializeProxy();
+  }
+});
+
 console.log('[Proxy] Background script loaded');

manifest.json

@@ -16,5 +16,5 @@
       "listen": ["*:*"]
     }
   },
-  "permissions": ["storage", "<all_urls>"]
+  "permissions": ["storage", "<all_urls>", "alarms", "power"]
 }