PaperMC/patches/server-unmapped/0545-Brand-support.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: DigitalRegent <misterwener@gmail.com>
Date: Sat, 11 Apr 2020 13:10:58 +0200
Subject: [PATCH] Brand support


diff --git a/src/main/java/net/minecraft/server/network/PlayerConnection.java b/src/main/java/net/minecraft/server/network/PlayerConnection.java
index 8f3dd1493f3a8121376f79632b3941cf642219a7..d3449dc9eeba0d8022c3a7b0280eaffcd42e7265 100644
--- a/src/main/java/net/minecraft/server/network/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/network/PlayerConnection.java
@@ -5,6 +5,7 @@ import com.google.common.primitives.Doubles;
 import com.google.common.primitives.Floats;
 import com.mojang.brigadier.ParseResults;
 import com.mojang.brigadier.StringReader;
+import io.netty.buffer.Unpooled;
 import io.netty.util.concurrent.Future;
 import io.netty.util.concurrent.GenericFutureListener;
 import it.unimi.dsi.fastutil.ints.Int2ShortMap;
@@ -37,6 +38,7 @@ import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.nbt.NBTTagList;
 import net.minecraft.nbt.NBTTagString;
 import net.minecraft.network.NetworkManager;
+import net.minecraft.network.PacketDataSerializer;
 import net.minecraft.network.chat.ChatComponentText;
 import net.minecraft.network.chat.ChatMessage;
 import net.minecraft.network.chat.ChatMessageType;
@@ -260,6 +262,8 @@ public class PlayerConnection implements PacketListenerPlayIn {
     private static final int MAX_SIGN_LINE_LENGTH = Integer.getInteger("Paper.maxSignLength", 80);
     private static final long KEEPALIVE_LIMIT = Long.getLong("paper.playerconnection.keepalive", 30) * 1000; // Paper - provide property to set keepalive limit
 
+    private String clientBrandName = null; // Paper - Brand name
+
     public PlayerConnection(MinecraftServer minecraftserver, NetworkManager networkmanager, EntityPlayer entityplayer) {
         this.minecraftServer = minecraftserver;
         this.networkManager = networkmanager;
@@ -3000,6 +3004,8 @@ public class PlayerConnection implements PacketListenerPlayIn {
     private static final MinecraftKey CUSTOM_REGISTER = new MinecraftKey("register");
     private static final MinecraftKey CUSTOM_UNREGISTER = new MinecraftKey("unregister");
 
+    private static final MinecraftKey MINECRAFT_BRAND = new MinecraftKey("brand"); // Paper - Brand support
+
     @Override
     public void a(PacketPlayInCustomPayload packetplayincustompayload) {
         PlayerConnectionUtils.ensureMainThread(packetplayincustompayload, this, this.player.getWorldServer());
@@ -3027,6 +3033,16 @@ public class PlayerConnection implements PacketListenerPlayIn {
             try {
                 byte[] data = new byte[packetplayincustompayload.data.readableBytes()];
                 packetplayincustompayload.data.readBytes(data);
+
+                // Paper start - Brand support
+                if (packetplayincustompayload.tag.equals(MINECRAFT_BRAND)) {
+                    try {
+                        this.clientBrandName = new PacketDataSerializer(Unpooled.copiedBuffer(data)).readUTF(256);
+                    } catch (StringIndexOutOfBoundsException ex) {
+                        this.clientBrandName = "illegal";
+                    }
+                }
+                // Paper end
                 server.getMessenger().dispatchIncomingMessage(player.getBukkitEntity(), packetplayincustompayload.tag.toString(), data);
             } catch (Exception ex) {
                 PlayerConnection.LOGGER.error("Couldn\'t dispatch custom payload", ex);
@@ -3036,6 +3052,12 @@ public class PlayerConnection implements PacketListenerPlayIn {
 
     }
 
+    // Paper start - brand support
+    public String getClientBrandName() {
+        return clientBrandName;
+    }
+    // Paper end
+
     public final boolean isDisconnected() {
         return (!this.player.joining && !this.networkManager.isConnected()) || this.processedDisconnect; // Paper
     }
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 0f8d10c2bc7728b58528096fc0686c3aeee623a7..18d7cf6e783843d44715210b7c8db7bf0a5c89ae 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -2388,6 +2388,13 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         // Paper end
     };
 
+    // Paper start - brand support
+    @Override
+    public String getClientBrandName() {
+        return getHandle().playerConnection != null ? getHandle().playerConnection.getClientBrandName() : null;
+    }
+    // Paper end
+
     public Player.Spigot spigot()
     {
         return spigot;