PaperMC/patches/server-remapped/0547-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/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index d264fca2737f83a0860394f7bb6b269ffe669594..ab6494f5a872bba5398bef0367b4d9257786f61e 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.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.ListTag;
 import net.minecraft.nbt.StringTag;
 import net.minecraft.nbt.Tag;
 import net.minecraft.network.Connection;
+import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.network.chat.ChatType;
 import net.minecraft.network.chat.Component;
 import net.minecraft.network.chat.MutableComponent;
@@ -258,6 +260,8 @@ public class ServerGamePacketListenerImpl implements ServerGamePacketListener {
     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 ServerGamePacketListenerImpl(MinecraftServer server, Connection connection, ServerPlayer player) {
         this.server = server;
         this.connection = connection;
@@ -2998,6 +3002,8 @@ public class ServerGamePacketListenerImpl implements ServerGamePacketListener {
     private static final ResourceLocation CUSTOM_REGISTER = new ResourceLocation("register");
     private static final ResourceLocation CUSTOM_UNREGISTER = new ResourceLocation("unregister");
 
+    private static final ResourceLocation MINECRAFT_BRAND = new ResourceLocation("brand"); // Paper - Brand support
+
     @Override
     public void handleCustomPayload(ServerboundCustomPayloadPacket packet) {
         PacketUtils.ensureRunningOnSameThread(packet, this, this.player.getLevel());
@@ -3025,6 +3031,16 @@ public class ServerGamePacketListenerImpl implements ServerGamePacketListener {
             try {
                 byte[] data = new byte[packet.data.readableBytes()];
                 packet.data.readBytes(data);
+
+                // Paper start - Brand support
+                if (packet.identifier.equals(MINECRAFT_BRAND)) {
+                    try {
+                        this.clientBrandName = new FriendlyByteBuf(Unpooled.copiedBuffer(data)).readUTF(256);
+                    } catch (StringIndexOutOfBoundsException ex) {
+                        this.clientBrandName = "illegal";
+                    }
+                }
+                // Paper end
                 craftServer.getMessenger().dispatchIncomingMessage(player.getBukkitEntity(), packet.identifier.toString(), data);
             } catch (Exception ex) {
                 ServerGamePacketListenerImpl.LOGGER.error("Couldn\'t dispatch custom payload", ex);
@@ -3034,6 +3050,12 @@ public class ServerGamePacketListenerImpl implements ServerGamePacketListener {
 
     }
 
+    // Paper start - brand support
+    public String getClientBrandName() {
+        return clientBrandName;
+    }
+    // Paper end
+
     public final boolean isDisconnected() {
         return (!this.player.joining && !this.connection.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 610eabd2e93f9efccee810c3b5a314bc3cc649d8..7aae63d22167dc1b3ec7e8bc8672855c2038007e 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -2385,6 +2385,13 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         // Paper end
     };
 
+    // Paper start - brand support
+    @Override
+    public String getClientBrandName() {
+        return getHandle().connection != null ? getHandle().connection.getClientBrandName() : null;
+    }
+    // Paper end
+
     public Player.Spigot spigot()
     {
         return spigot;