Honour consoleproxy.session.timeout for noVNC sessions (fixes #12810)

services/console-proxy/server/src/main/java/com/cloud/consoleproxy/ConsoleProxy.java

@@ -80,6 +80,9 @@ public class ConsoleProxy {
     static String factoryClzName;
     static boolean standaloneStart = false;
 
+    // New: session timeout in milliseconds, default 300000 (5 minutes)
+    static int sessionTimeoutMillis = 300000;
+
     static String encryptorPassword = "Dummy";
     static final String[] skipProperties = new String[]{"certificate", "cacertificate", "keystore_password", "privatekey"};
 
@@ -165,6 +168,18 @@ private static void configProxy(Properties conf) {
             defaultBufferSize = Integer.parseInt(s);
             LOGGER.info("Setting defaultBufferSize=" + defaultBufferSize);
         }
+
+        // New: read consoleproxy.session.timeout (milliseconds)
+        s = conf.getProperty("consoleproxy.session.timeout");
+        if (s != null) {
+            try {
+                sessionTimeoutMillis = Integer.parseInt(s);
+                LOGGER.info("Setting consoleproxy.session.timeout=" + sessionTimeoutMillis);
+            } catch (NumberFormatException e) {
+                LOGGER.warn("Invalid value for consoleproxy.session.timeout: " + s +
+                        ", using default " + sessionTimeoutMillis, e);
+            }
+        }
     }
 
     public static ConsoleProxyServerFactory getHttpServerFactory() {
@@ -379,7 +394,7 @@ public static void start(Properties conf) {
             LOGGER.info("HTTP command port is disabled");
         }
 
-        ConsoleProxyGCThread cthread = new ConsoleProxyGCThread(connectionMap, removedSessionsSet);
+        ConsoleProxyGCThread cthread = new ConsoleProxyGCThread(connectionMap, removedSessionsSet /*, sessionTimeoutMillis */);
         cthread.setName("Console Proxy GC Thread");
         cthread.start();
     }

services/console-proxy/server/src/main/java/com/cloud/consoleproxy/ConsoleProxyGCThread.java

@@ -34,7 +34,7 @@
 public class ConsoleProxyGCThread extends Thread {
     protected Logger logger = LogManager.getLogger(ConsoleProxyGCThread.class);
 
-    private final static int MAX_SESSION_IDLE_SECONDS = 180;
+    private final static int DEFAULT_MAX_SESSION_IDLE_SECONDS = 180;
 
     private final Map<String, ConsoleProxyClient> connMap;
     private final Set<String> removedSessionsSet;
@@ -45,6 +45,13 @@ public ConsoleProxyGCThread(Map<String, ConsoleProxyClient> connMap, Set<String>
         this.removedSessionsSet = removedSet;
     }
 
+    private int getMaxSessionIdleSeconds() {
+        if (ConsoleProxy.sessionTimeoutMillis <= 0) {
+            return DEFAULT_MAX_SESSION_IDLE_SECONDS;
+        }
+        return ConsoleProxy.sessionTimeoutMillis / 1000;
+    }
+
     private void cleanupLogging() {
         if (lastLogScan != 0 && System.currentTimeMillis() - lastLogScan < 3600000)
             return;
@@ -92,7 +99,7 @@ public void run() {
                 }
 
                 long seconds_unused = (System.currentTimeMillis() - client.getClientLastFrontEndActivityTime()) / 1000;
-                if (seconds_unused < MAX_SESSION_IDLE_SECONDS) {
+                if (seconds_unused < getMaxSessionIdleSeconds()) {
                     continue;
                 }
 

services/console-proxy/server/src/main/java/com/cloud/consoleproxy/ConsoleProxyNoVNCHandler.java

@@ -125,6 +125,10 @@ public void onConnect(final Session session) throws IOException, InterruptedExce
         }
 
         try {
+            session.setIdleTimeout(ConsoleProxy.sessionTimeoutMillis);
+            logger.debug("Set noVNC WebSocket idle timeout to {} ms for session UUID: {}.",
+                    ConsoleProxy.sessionTimeoutMillis, sessionUuid);
+
             ConsoleProxyClientParam param = new ConsoleProxyClientParam();
             param.setClientHostAddress(host);
             param.setClientHostPort(port);
@@ -185,12 +189,21 @@ public void onClose(Session session, int statusCode, String reason) throws IOExc
 
     @OnWebSocketFrame
     public void onFrame(Frame f) throws IOException {
+        if (viewer == null) {
+            logger.warn("Ignoring WebSocket frame because viewer is not initialized yet.");
+            return;
+        }
         logger.trace("Sending client [ID: {}] frame of {} bytes.", viewer.getClientId(), f.getPayloadLength());
         viewer.sendClientFrame(f);
     }
 
     @OnWebSocketError
     public void onError(Throwable cause) {
-        logger.error("Error on WebSocket [client ID: {}, session UUID: {}].", cause, viewer.getClientId(), viewer.getSessionUuid());
+        if (viewer != null) {
+            logger.error("Error on WebSocket [client ID: {}, session UUID: {}].",
+                    viewer.getClientId(), viewer.getSessionUuid(), cause);
+        } else {
+            logger.error("Error on WebSocket before viewer initialization.", cause);
+        }
     }
 }