fix(PortProxy): Fix handling of SNI re-negotiation in PortProxy

changelog.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 2025-02-27 - 3.17.1 - fix(PortProxy)
+Fix handling of SNI re-negotiation in PortProxy
+
+- Removed connection locking to the initially negotiated SNI
+- Improved handling of SNI during renegotiation in PortProxy
+
 ## 2025-02-27 - 3.17.0 - feat(smartproxy)
 Enhance description clarity and improve SNI handling with domain locking.
 

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartproxy',
-  version: '3.17.0',
+  version: '3.17.1',
   description: 'A powerful proxy package that effectively handles high traffic, with features such as SSL/TLS support, port proxying, WebSocket handling, and dynamic routing with authentication options.'
 }

ts/classes.portproxy.ts

@@ -90,7 +90,6 @@ interface IConnectionRecord {
   outgoing: plugins.net.Socket | null;
   incomingStartTime: number;
   outgoingStartTime?: number;
-  lockedDomain?: string; // New field to lock this connection to the initial SNI
   connectionClosed: boolean;
   cleanupTimer?: NodeJS.Timeout; // Timer to force cleanup after max lifetime/inactivity
 }
@@ -367,19 +366,7 @@ export class PortProxy {
           socket.setTimeout(0);
           initialDataReceived = true;
           const serverName = extractSNI(chunk) || '';
-          // Lock the connection to the negotiated SNI.
-          connectionRecord.lockedDomain = serverName;
           console.log(`Received connection from ${remoteIP} with SNI: ${serverName}`);
-          // Add an extra data listener to check for a renegotiated ClientHello.
-          socket.on('data', (chunk: Buffer) => {
-            if (chunk.length > 0 && chunk.readUInt8(0) === 22) {
-              const newSNI = extractSNI(chunk);
-              if (newSNI && newSNI !== connectionRecord.lockedDomain) {
-                console.log(`Rehandshake detected with different SNI: ${newSNI} vs locked ${connectionRecord.lockedDomain}. Terminating connection.`);
-                cleanupOnce();
-              }
-            }
-          });
           setupConnection(serverName, chunk);
         });
       } else {