Paper/CraftBukkit-Patches/0055-Fire-PreLogin-Events-in-Offline-Mode.patch

From a31599ba0f5d0464336c4447f4e7a0b8f681003b Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Wed, 18 Dec 2013 13:32:10 +1100
Subject: [PATCH] Fire PreLogin Events in Offline Mode


diff --git a/src/main/java/net/minecraft/server/LoginListener.java b/src/main/java/net/minecraft/server/LoginListener.java
index ba2b912..a59ea80 100644
--- a/src/main/java/net/minecraft/server/LoginListener.java
+++ b/src/main/java/net/minecraft/server/LoginListener.java
@@ -60,10 +60,23 @@ public class LoginListener implements PacketLoginInListener, IUpdatePlayerListBo
 
     }
 
+    // Spigot start
+    public void initUUID()
+    {
+        UUID uuid = UUID.nameUUIDFromBytes( ( "OfflinePlayer:" + this.i.getName() ).getBytes( Charsets.UTF_8 ) );
+
+        this.i = new GameProfile( uuid, this.i.getName() );
+    }
+    // Spigot end
+
     public void b() {
+        // Spigot start - Moved to initUUID
+        /*
         if (!this.i.isComplete()) {
             this.i = this.a(this.i);
         }
+        */
+        // Spigot end
 
         // CraftBukkit start - fire PlayerLoginEvent
         EntityPlayer s = this.server.getPlayerList().attemptLogin(this, this.i, hostname);
@@ -98,7 +111,7 @@ public class LoginListener implements PacketLoginInListener, IUpdatePlayerListBo
             this.g = EnumProtocolState.KEY;
             this.networkManager.handle(new PacketLoginOutEncryptionBegin(this.j, this.server.P().getPublic(), this.e));
         } else {
-            this.g = EnumProtocolState.READY_TO_ACCEPT;
+            (new ThreadPlayerLookupUUID(this, "User Authenticator #" + b.incrementAndGet())).start(); // Spigot
         }
 
     }
diff --git a/src/main/java/net/minecraft/server/ThreadPlayerLookupUUID.java b/src/main/java/net/minecraft/server/ThreadPlayerLookupUUID.java
index bbceef0..8b93fd5 100644
--- a/src/main/java/net/minecraft/server/ThreadPlayerLookupUUID.java
+++ b/src/main/java/net/minecraft/server/ThreadPlayerLookupUUID.java
@@ -24,50 +24,19 @@ class ThreadPlayerLookupUUID extends Thread {
         GameProfile gameprofile = LoginListener.b(this.a);
 
         try {
+            // Spigot Start
+            if ( !LoginListener.a( this.a ).getOnlineMode() )
+            {
+                a.initUUID();
+                fireLoginEvents();
+                return;
+            }
+            // Spigot End
             String s = (new BigInteger(MinecraftEncryption.a(LoginListener.c(this.a), LoginListener.a(this.a).P().getPublic(), LoginListener.d(this.a)))).toString(16);
 
             LoginListener.a(this.a, LoginListener.a(this.a).aB().hasJoinedServer(new GameProfile((UUID) null, gameprofile.getName()), s));
             if (LoginListener.b(this.a) != null) {
-                // CraftBukkit start - fire PlayerPreLoginEvent
-                if (!this.a.networkManager.g()) {
-                    return;
-                }
-
-                String playerName = LoginListener.b(this.a).getName();
-                java.net.InetAddress address = ((java.net.InetSocketAddress) a.networkManager.getSocketAddress()).getAddress();
-                java.util.UUID uniqueId = LoginListener.b(this.a).getId();
-                final org.bukkit.craftbukkit.CraftServer server = LoginListener.a(this.a).server;
-
-                AsyncPlayerPreLoginEvent asyncEvent = new AsyncPlayerPreLoginEvent(playerName, address, uniqueId);
-                server.getPluginManager().callEvent(asyncEvent);
-
-                if (PlayerPreLoginEvent.getHandlerList().getRegisteredListeners().length != 0) {
-                    final PlayerPreLoginEvent event = new PlayerPreLoginEvent(playerName, address, uniqueId);
-                    if (asyncEvent.getResult() != PlayerPreLoginEvent.Result.ALLOWED) {
-                        event.disallow(asyncEvent.getResult(), asyncEvent.getKickMessage());
-                    }
-                    Waitable<PlayerPreLoginEvent.Result> waitable = new Waitable<PlayerPreLoginEvent.Result>() {
-                        @Override
-                        protected PlayerPreLoginEvent.Result evaluate() {
-                            server.getPluginManager().callEvent(event);
-                            return event.getResult();
-                        }};
-
-                    LoginListener.a(this.a).processQueue.add(waitable);
-                    if (waitable.get() != PlayerPreLoginEvent.Result.ALLOWED) {
-                        this.a.disconnect(event.getKickMessage());
-                        return;
-                    }
-                } else {
-                    if (asyncEvent.getLoginResult() != AsyncPlayerPreLoginEvent.Result.ALLOWED) {
-                        this.a.disconnect(asyncEvent.getKickMessage());
-                        return;
-                    }
-                }
-                // CraftBukkit end
-        
-                LoginListener.e().info("UUID of player " + LoginListener.b(this.a).getName() + " is " + LoginListener.b(this.a).getId());
-                LoginListener.a(this.a, EnumProtocolState.READY_TO_ACCEPT);
+                fireLoginEvents(); // Spigot
             } else if (LoginListener.a(this.a).S()) {
                 LoginListener.e().warn("Failed to verify username but will let them in anyway!");
                 LoginListener.a(this.a, this.a.a(gameprofile));
@@ -93,4 +62,48 @@ class ThreadPlayerLookupUUID extends Thread {
         }
 
     }
+
+    private void fireLoginEvents() throws Exception
+    {
+        // CraftBukkit start - fire PlayerPreLoginEvent
+        if (!this.a.networkManager.g()) {
+            return;
+        }
+
+        String playerName = LoginListener.b(this.a).getName();
+        java.net.InetAddress address = ((java.net.InetSocketAddress) a.networkManager.getSocketAddress()).getAddress();
+        java.util.UUID uniqueId = LoginListener.b(this.a).getId();
+        final org.bukkit.craftbukkit.CraftServer server = LoginListener.a(this.a).server;
+
+        AsyncPlayerPreLoginEvent asyncEvent = new AsyncPlayerPreLoginEvent(playerName, address, uniqueId);
+        server.getPluginManager().callEvent(asyncEvent);
+
+        if (PlayerPreLoginEvent.getHandlerList().getRegisteredListeners().length != 0) {
+            final PlayerPreLoginEvent event = new PlayerPreLoginEvent(playerName, address, uniqueId);
+            if (asyncEvent.getResult() != PlayerPreLoginEvent.Result.ALLOWED) {
+                event.disallow(asyncEvent.getResult(), asyncEvent.getKickMessage());
+            }
+            Waitable<PlayerPreLoginEvent.Result> waitable = new Waitable<PlayerPreLoginEvent.Result>() {
+                @Override
+                protected PlayerPreLoginEvent.Result evaluate() {
+                    server.getPluginManager().callEvent(event);
+                    return event.getResult();
+                }};
+
+            LoginListener.a(this.a).processQueue.add(waitable);
+            if (waitable.get() != PlayerPreLoginEvent.Result.ALLOWED) {
+                this.a.disconnect(event.getKickMessage());
+                return;
+            }
+        } else {
+            if (asyncEvent.getLoginResult() != AsyncPlayerPreLoginEvent.Result.ALLOWED) {
+                this.a.disconnect(asyncEvent.getKickMessage());
+                return;
+            }
+        }
+        // CraftBukkit end
+
+        LoginListener.e().info("UUID of player " + LoginListener.b(this.a).getName() + " is " + LoginListener.b(this.a).getId());
+        LoginListener.a(this.a, EnumProtocolState.READY_TO_ACCEPT);
+    }
 }
-- 
2.1.0