From 51a056ecd5820ff24a87f0c20a05024f68275224 Mon Sep 17 00:00:00 2001
From: Nathan Adams <dinnerbone@dinnerbone.com>
Date: Fri, 20 Jan 2012 16:03:15 +0000
Subject: [PATCH] Disallow colour names in offline-mode. This fixes BUKKIT-439.
 Thanks to cainfool for the discovery.

---
 src/main/java/net/minecraft/server/NetLoginHandler.java | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/main/java/net/minecraft/server/NetLoginHandler.java b/src/main/java/net/minecraft/server/NetLoginHandler.java
index e3494c0532..82e3804c97 100644
--- a/src/main/java/net/minecraft/server/NetLoginHandler.java
+++ b/src/main/java/net/minecraft/server/NetLoginHandler.java
@@ -6,6 +6,7 @@ import java.util.Random;
 import java.util.logging.Logger;
 
 // CraftBukkit start
+import org.bukkit.ChatColor;
 import org.bukkit.craftbukkit.event.CraftEventFactory;
 import org.bukkit.event.server.ServerListPingEvent;
 // CraftBukkit end
@@ -77,6 +78,12 @@ public class NetLoginHandler extends NetHandler {
             }
         } else {
             if (!this.server.onlineMode) {
+                // CraftBukkit start - disallow colour in names
+                if (!packet1login.name.equals(ChatColor.stripColor(packet1login.name))) {
+                    this.disconnect("Colourful names are not permitted!");
+                    return;
+                }
+                // CraftBukkit end
                 this.b(packet1login);
             } else {
                 (new ThreadLoginVerifier(this, packet1login, this.server.server)).start(); // CraftBukkit