feat(smartproxy.portproxy): Add logging of connection durations to PortProxy

changelog.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 2025-02-21 - 3.9.0 - feat(smartproxy.portproxy)
+Add logging of connection durations to PortProxy
+
+- Track start times for incoming and outgoing connections.
+- Log duration of longest running incoming and outgoing connections every 10 seconds.
+
 ## 2025-02-21 - 3.8.1 - fix(plugins)
 Simplified plugin import structure across codebase
 

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartproxy',
-  version: '3.8.1',
+  version: '3.9.0',
   description: 'a proxy for handling high workloads of proxying'
 }

ts/smartproxy.portproxy.ts

@@ -117,6 +117,10 @@ export class PortProxy {
   settings: IProxySettings;
   // Track active incoming connections
   private activeConnections: Set<plugins.net.Socket> = new Set();
+  // Record start times for incoming connections
+  private incomingConnectionTimes: Map<plugins.net.Socket, number> = new Map();
+  // Record start times for outgoing connections
+  private outgoingConnectionTimes: Map<plugins.net.Socket, number> = new Map();
   private connectionLogger: NodeJS.Timeout | null = null;
 
   constructor(settings: IProxySettings) {
@@ -168,6 +172,11 @@ export class PortProxy {
     this.netServer = plugins.net.createServer((socket: plugins.net.Socket) => {
       const remoteIP = socket.remoteAddress || '';
 
+      // Record start time for the incoming connection.
+      this.activeConnections.add(socket);
+      this.incomingConnectionTimes.set(socket, Date.now());
+      console.log(`New connection from ${remoteIP}. Active connections: ${this.activeConnections.size}`);
+
       // Flag to detect if we've received the first data chunk.
       let initialDataReceived = false;
 
@@ -180,16 +189,16 @@ export class PortProxy {
         }
       });
 
-      // Track the new incoming connection.
-      this.activeConnections.add(socket);
-      console.log(`New connection from ${remoteIP}. Active connections: ${this.activeConnections.size}`);
-
       // Flag to ensure cleanup happens only once.
       let connectionClosed = false;
       const cleanupOnce = () => {
         if (!connectionClosed) {
           connectionClosed = true;
           cleanUpSockets(socket, to);
+          this.incomingConnectionTimes.delete(socket);
+          if (to) {
+            this.outgoingConnectionTimes.delete(to);
+          }
           if (this.activeConnections.has(socket)) {
             this.activeConnections.delete(socket);
             console.log(`Connection from ${remoteIP} terminated. Active connections: ${this.activeConnections.size}`);
@@ -253,6 +262,8 @@ export class PortProxy {
 
         // Establish outgoing connection.
         to = plugins.net.connect(connectionOptions);
+        // Record start time for the outgoing connection.
+        this.outgoingConnectionTimes.set(to, Date.now());
         console.log(`Connection established: ${remoteIP} -> ${targetHost}:${this.settings.toPort}${serverName ? ` (SNI: ${serverName})` : ''}`);
         
         // Push back the initial chunk if provided.
@@ -301,9 +312,24 @@ export class PortProxy {
       console.log(`PortProxy -> OK: Now listening on port ${this.settings.fromPort}${this.settings.sniEnabled ? ' (SNI passthrough enabled)' : ''}`);
     });
 
-    // Log active connection count every 10 seconds.
+    // Log active connection count and longest running connections every 10 seconds.
     this.connectionLogger = setInterval(() => {
-      console.log(`(Interval Log) Active connections: ${this.activeConnections.size}`);
+      const now = Date.now();
+      let maxIncoming = 0;
+      for (const startTime of this.incomingConnectionTimes.values()) {
+        const duration = now - startTime;
+        if (duration > maxIncoming) {
+          maxIncoming = duration;
+        }
+      }
+      let maxOutgoing = 0;
+      for (const startTime of this.outgoingConnectionTimes.values()) {
+        const duration = now - startTime;
+        if (duration > maxOutgoing) {
+          maxOutgoing = duration;
+        }
+      }
+      console.log(`(Interval Log) Active connections: ${this.activeConnections.size}. Longest running incoming: ${maxIncoming}ms, outgoing: ${maxOutgoing}ms`);
     }, 10000);
   }