Paper/CraftBukkit-Patches/0047-Fire-PreLogin-Events-in-Offline-Mode.patch

From 375f19d5b86d8c2498918195a67c992259ffa5f6 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 3cca9ff..71d24b2 100644
--- a/src/main/java/net/minecraft/server/LoginListener.java
+++ b/src/main/java/net/minecraft/server/LoginListener.java
@@ -13,6 +13,7 @@ import java.util.Arrays;
 import java.util.Random;
 import java.util.UUID;
 import java.util.concurrent.atomic.AtomicInteger;
+import java.util.logging.Level;
 import javax.crypto.SecretKey;
 import org.apache.commons.lang3.Validate;
 import org.apache.logging.log4j.LogManager;
@@ -80,10 +81,23 @@ public class LoginListener implements PacketLoginInListener, ITickable {
 
     }
 
+    // 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);
@@ -133,7 +147,22 @@ public class LoginListener implements PacketLoginInListener, ITickable {
             this.g = LoginListener.EnumProtocolState.KEY;
             this.networkManager.sendPacket(new PacketLoginOutEncryptionBegin(this.j, this.server.O().getPublic(), this.e));
         } else {
-            this.g = LoginListener.EnumProtocolState.READY_TO_ACCEPT;
+            // Spigot start
+            new Thread("User Authenticator #" + LoginListener.b.incrementAndGet()) {
+
+                @Override
+                public void run() {
+                    try {
+                        initUUID();
+                        new LoginHandler().fireEvents();
+                        LoginListener.this.g = LoginListener.EnumProtocolState.READY_TO_ACCEPT;
+                    } catch (Exception ex) {
+                        disconnect("Failed to verify username!");
+                        server.server.getLogger().log(java.util.logging.Level.WARNING, "Exception verifying " + i.getName(), ex);
+                    }
+                }
+            }.start();
+            // Spigot end
         }
 
     }
@@ -162,6 +191,39 @@ public class LoginListener implements PacketLoginInListener, ITickable {
                                 return;
                             }
 
+                            new LoginHandler().fireEvents();
+                        } else if (LoginListener.this.server.R()) {
+                            LoginListener.c.warn("Failed to verify username but will let them in anyway!");
+                            LoginListener.this.i = LoginListener.this.a(gameprofile);
+                            LoginListener.this.g = LoginListener.EnumProtocolState.READY_TO_ACCEPT;
+                        } else {
+                            LoginListener.this.disconnect("Failed to verify username!");
+                            LoginListener.c.error("Username \'" + gameprofile.getName() + "\' tried to join with an invalid session"); // CraftBukkit - fix null pointer
+                        }
+                    } catch (AuthenticationUnavailableException authenticationunavailableexception) {
+                        if (LoginListener.this.server.R()) {
+                            LoginListener.c.warn("Authentication servers are down but will let them in anyway!");
+                            LoginListener.this.i = LoginListener.this.a(gameprofile);
+                            LoginListener.this.g = LoginListener.EnumProtocolState.READY_TO_ACCEPT;
+                        } else {
+                            LoginListener.this.disconnect("Authentication servers are down. Please try again later, sorry!");
+                            LoginListener.c.error("Couldn\'t verify username because servers are unavailable");
+                        }
+                        // CraftBukkit start - catch all exceptions
+                    } catch (Exception exception) {
+                        disconnect("Failed to verify username!");
+                        server.server.getLogger().log(java.util.logging.Level.WARNING, "Exception verifying " + gameprofile.getName(), exception);
+                        // CraftBukkit end
+                    }
+                }
+            }).start();
+        }
+    }
+
+    // Spigot start
+    public class LoginHandler {
+
+        public void fireEvents() throws Exception {
                             String playerName = i.getName();
                             java.net.InetAddress address = ((java.net.InetSocketAddress) networkManager.getSocketAddress()).getAddress();
                             java.util.UUID uniqueId = i.getId();
@@ -196,34 +258,9 @@ public class LoginListener implements PacketLoginInListener, ITickable {
                             // CraftBukkit end
                             LoginListener.c.info("UUID of player " + LoginListener.this.i.getName() + " is " + LoginListener.this.i.getId());
                             LoginListener.this.g = LoginListener.EnumProtocolState.READY_TO_ACCEPT;
-                        } else if (LoginListener.this.server.R()) {
-                            LoginListener.c.warn("Failed to verify username but will let them in anyway!");
-                            LoginListener.this.i = LoginListener.this.a(gameprofile);
-                            LoginListener.this.g = LoginListener.EnumProtocolState.READY_TO_ACCEPT;
-                        } else {
-                            LoginListener.this.disconnect("Failed to verify username!");
-                            LoginListener.c.error("Username \'" + gameprofile.getName() + "\' tried to join with an invalid session"); // CraftBukkit - fix null pointer
-                        }
-                    } catch (AuthenticationUnavailableException authenticationunavailableexception) {
-                        if (LoginListener.this.server.R()) {
-                            LoginListener.c.warn("Authentication servers are down but will let them in anyway!");
-                            LoginListener.this.i = LoginListener.this.a(gameprofile);
-                            LoginListener.this.g = LoginListener.EnumProtocolState.READY_TO_ACCEPT;
-                        } else {
-                            LoginListener.this.disconnect("Authentication servers are down. Please try again later, sorry!");
-                            LoginListener.c.error("Couldn\'t verify username because servers are unavailable");
-                        }
-                        // CraftBukkit start - catch all exceptions
-                    } catch (Exception exception) {
-                        disconnect("Failed to verify username!");
-                        server.server.getLogger().log(java.util.logging.Level.WARNING, "Exception verifying " + gameprofile.getName(), exception);
-                        // CraftBukkit end
-                    }
-
                 }
-            }).start();
         }
-    }
+    // Spigot end
 
     protected GameProfile a(GameProfile gameprofile) {
         UUID uuid = UUID.nameUUIDFromBytes(("OfflinePlayer:" + gameprofile.getName()).getBytes(Charsets.UTF_8));
-- 
2.5.0