From 8efc549832c3ed150b6427738460301fce938ab5 Mon Sep 17 00:00:00 2001
From: md_5 <md_5@live.com.au>
Date: Sun, 1 Dec 2013 18:18:41 +1100
Subject: [PATCH] BungeeCord Support

Provides support for IP forwarding via BungeeCord.

diff --git a/src/main/java/net/minecraft/server/HandshakeListener.java b/src/main/java/net/minecraft/server/HandshakeListener.java
index ff7b3d3..0215891 100644
--- a/src/main/java/net/minecraft/server/HandshakeListener.java
+++ b/src/main/java/net/minecraft/server/HandshakeListener.java
@@ -73,6 +73,22 @@ public class HandshakeListener implements PacketHandshakingInListener {
                 this.b.a((IChatBaseComponent) chatcomponenttext);
             } else {
                 this.b.a((PacketListener) (new LoginListener(this.a, this.b)));
+                // Spigot Start
+                if (org.spigotmc.SpigotConfig.bungee) {
+                    String[] split = packethandshakinginsetprotocol.b.split("\00");
+                    if ( split.length == 3 ) {
+                        packethandshakinginsetprotocol.b = split[0];
+                        b.l = new java.net.InetSocketAddress(split[1], ((java.net.InetSocketAddress) b.getSocketAddress()).getPort());
+                        b.spoofedUUID = split[2];
+                    } else
+                    {
+                        chatcomponenttext = new ChatComponentText("If you wish to use IP forwarding, please enable it in your BungeeCord config as well!");
+                        this.b.handle(new PacketLoginOutDisconnect(chatcomponenttext), new GenericFutureListener[0]);
+                        this.b.a(chatcomponenttext);
+                        return;
+                    }
+                }
+                // Spigot End
                 ((LoginListener) this.b.getPacketListener()).hostname = packethandshakinginsetprotocol.b + ":" + packethandshakinginsetprotocol.c; // CraftBukkit - set hostname
             }
             break;
diff --git a/src/main/java/net/minecraft/server/LoginListener.java b/src/main/java/net/minecraft/server/LoginListener.java
index 6beac82..aa06e92 100644
--- a/src/main/java/net/minecraft/server/LoginListener.java
+++ b/src/main/java/net/minecraft/server/LoginListener.java
@@ -61,9 +61,18 @@ public class LoginListener implements PacketLoginInListener {
 
     public void c() {
         if (!this.i.isComplete()) {
-            UUID uuid = UUID.nameUUIDFromBytes(("OfflinePlayer:" + this.i.getName()).getBytes(Charsets.UTF_8));
-
-            this.i = new GameProfile(uuid.toString().replaceAll("-", ""), this.i.getName());
+            // Spigot Start
+            String uuid;
+            if ( networkManager.spoofedUUID != null )
+            {
+                uuid = networkManager.spoofedUUID;
+            } else
+            {
+                uuid = UUID.nameUUIDFromBytes(("OfflinePlayer:" + this.i.getName()).getBytes(Charsets.UTF_8)).toString().replaceAll("-", "");
+            }
+
+            this.i = new GameProfile(uuid, this.i.getName());
+            // Spigot End
         }
 
         // CraftBukkit start
diff --git a/src/main/java/net/minecraft/server/NetworkManager.java b/src/main/java/net/minecraft/server/NetworkManager.java
index 8f829bb..6b2fbb9 100644
--- a/src/main/java/net/minecraft/server/NetworkManager.java
+++ b/src/main/java/net/minecraft/server/NetworkManager.java
@@ -34,7 +34,8 @@ public class NetworkManager extends SimpleChannelInboundHandler {
     private final Queue i = Queues.newConcurrentLinkedQueue();
     private final Queue j = Queues.newConcurrentLinkedQueue();
     private Channel k;
-    private SocketAddress l;
+    public SocketAddress l; // Spigot
+    public String spoofedUUID; // Spigot
     private PacketListener m;
     private EnumProtocol n;
     private IChatBaseComponent o;
@@ -195,4 +196,11 @@ public class NetworkManager extends SimpleChannelInboundHandler {
     static Channel a(NetworkManager networkmanager) {
         return networkmanager.k;
     }
+
+    // Spigot Start
+    public SocketAddress getRawAddress()
+    {
+        return this.k.remoteAddress();
+    }
+    // Spigot End
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 1b902b2..a85b08e 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -1259,6 +1259,12 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
     {
 
         @Override
+        public InetSocketAddress getRawAddress()
+        {
+            return (InetSocketAddress) getHandle().playerConnection.networkManager.getRawAddress();
+        }
+
+        @Override
         public boolean getCollidesWithEntities()
         {
             return getHandle().collidesWithEntities;
diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
index 2ea1be7..08bd5ba 100644
--- a/src/main/java/org/spigotmc/SpigotConfig.java
+++ b/src/main/java/org/spigotmc/SpigotConfig.java
@@ -181,4 +181,14 @@ public class SpigotConfig
         commands.put( "restart", new RestartCommand( "restart" ) );
         WatchdogThread.doStart( timeoutTime, restartOnCrash );
     }
+
+    public static boolean bungee;
+    private static void bungee() {
+        if ( version < 4 )
+        {
+            set( "settings.bungeecord", false );
+            System.out.println( "Oudated config, disabling BungeeCord support!" );
+        }
+        bungee = getBoolean( "settings.bungeecord", false );
+    }
 }
-- 
1.8.3.2