From fdc24cbeeddd01f8d454f8bffdfe5c244a07b8a5 Mon Sep 17 00:00:00 2001
From: Romain Beaumont <romain.rom1@gmail.com>
Date: Sat, 8 Aug 2015 19:22:32 +0200
Subject: [PATCH] Kick client when he is using the wrong version of the client,
 fix #209

---
 src/client.js       | 2 +-
 src/createServer.js | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/client.js b/src/client.js
index b1bae1f..7a73438 100644
--- a/src/client.js
+++ b/src/client.js
@@ -114,7 +114,7 @@ class Client extends EventEmitter
 
   end(reason) {
     this._endReason = reason;
-    this.socket.end();
+    if(this.socket) this.socket.end();
   }
 
   setEncryption(sharedSecret) {
diff --git a/src/createServer.js b/src/createServer.js
index 7e81f0d..b0a7487 100644
--- a/src/createServer.js
+++ b/src/createServer.js
@@ -146,6 +146,10 @@ function createServer(options) {
       } else if(packet.nextState == 2) {
         client.state = states.LOGIN;
       }
+      if(client.protocolVersion!=version.version)
+      {
+        client.end("Wrong protocol version, expected : "+version.version+" and you are using : "+client.protocolVersion);
+      }
     }
 
     function onEncryptionKeyResponse(packet) {