Created
February 27, 2022 09:37
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Seamless Name, UUID, and Skin Disguise on Paper 1.18 (ProtocolLib)
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| package me.nathanfranke.nickplugin | |
| import com.comphenix.protocol.PacketType | |
| import com.comphenix.protocol.ProtocolLibrary | |
| import com.comphenix.protocol.events.PacketAdapter | |
| import com.comphenix.protocol.events.PacketContainer | |
| import com.comphenix.protocol.events.PacketEvent | |
| import com.comphenix.protocol.wrappers.EnumWrappers | |
| import com.comphenix.protocol.wrappers.PlayerInfoData | |
| import com.comphenix.protocol.wrappers.WrappedChatComponent | |
| import com.comphenix.protocol.wrappers.WrappedGameProfile | |
| import com.comphenix.protocol.wrappers.WrappedSignedProperty | |
| import com.destroystokyo.paper.profile.PlayerProfile | |
| import org.bukkit.command.Command | |
| import org.bukkit.command.CommandSender | |
| import org.bukkit.entity.Player | |
| import org.bukkit.event.EventHandler | |
| import org.bukkit.event.Listener | |
| import org.bukkit.event.player.PlayerJoinEvent | |
| import org.bukkit.plugin.java.JavaPlugin | |
| import java.util.UUID | |
| @Suppress("UNUSED") | |
| class NickPlugin : JavaPlugin(), Listener { | |
| private val names = mutableMapOf<UUID, String>() | |
| override fun onEnable() { | |
| ProtocolLibrary.getProtocolManager().addPacketListener( | |
| object : PacketAdapter(this, PacketType.Play.Server.NAMED_ENTITY_SPAWN) { | |
| override fun onPacketSending(event: PacketEvent) { | |
| val uuid = event.packet.uuiDs.read(0) | |
| val profile = getEffectiveProfile(server.getPlayer(uuid)!!) | |
| event.packet.uuiDs.write(0, profile.id) | |
| } | |
| }, | |
| ) | |
| ProtocolLibrary.getProtocolManager().addPacketListener( | |
| object : PacketAdapter(this, PacketType.Play.Server.PLAYER_INFO) { | |
| override fun onPacketSending(event: PacketEvent) { | |
| val dataList = event.packet.playerInfoDataLists.read(0) | |
| for (i in dataList.indices) { | |
| val data = dataList[i] | |
| val player = server.getPlayer(data.profile.uuid) ?: continue | |
| val profile = getEffectiveProfile(player) | |
| val wrappedProfile = if (event.player == player) { | |
| WrappedGameProfile(player.uniqueId, profile.name) | |
| } else { | |
| WrappedGameProfile(profile.id, profile.name) | |
| } | |
| for (property in profile.properties) { | |
| wrappedProfile.properties.put( | |
| property.name, | |
| WrappedSignedProperty( | |
| property.name, | |
| property.value, | |
| property.signature, | |
| ), | |
| ) | |
| } | |
| dataList[i] = PlayerInfoData( | |
| wrappedProfile, | |
| data.latency, | |
| data.gameMode, | |
| WrappedChatComponent.fromText(wrappedProfile.name), | |
| ) | |
| } | |
| event.packet.playerInfoDataLists.write(0, dataList) | |
| Unit | |
| } | |
| }, | |
| ) | |
| server.pluginManager.registerEvents(this, this) | |
| } | |
| private fun getOfflineProfile(name: String) = | |
| server.createProfile(UUID.nameUUIDFromBytes("OfflinePlayer:$name".toByteArray()), name) | |
| private fun getEffectiveProfile(player: Player): PlayerProfile { | |
| val effectiveName = names.getOrDefault(player.uniqueId, player.name) | |
| val profile = server.createProfile(effectiveName) | |
| profile.complete() | |
| profile.id ?: return getOfflineProfile(effectiveName) | |
| return profile | |
| } | |
| private fun nick(player: Player, name: String) { | |
| names[player.uniqueId] = name | |
| refresh(player) | |
| } | |
| private val playerPreviousIdentities = mutableMapOf<Player, WrappedGameProfile>() | |
| private fun refresh(player: Player) { | |
| // REMOVE PLAYER FOR OTHERS | |
| run { | |
| val previous = playerPreviousIdentities.remove(player) | |
| ?: WrappedGameProfile(player.uniqueId, player.name) | |
| val profile = getEffectiveProfile(player) | |
| playerPreviousIdentities[player] = WrappedGameProfile(profile.id, profile.name) | |
| val packet = PacketContainer(PacketType.Play.Server.PLAYER_INFO) | |
| packet.playerInfoAction.write(0, EnumWrappers.PlayerInfoAction.REMOVE_PLAYER) | |
| packet.playerInfoDataLists.write( | |
| 0, | |
| listOf( | |
| PlayerInfoData( | |
| previous, | |
| 0, | |
| EnumWrappers.NativeGameMode.SURVIVAL, | |
| null, | |
| ), | |
| ), | |
| ) | |
| for (p in server.onlinePlayers) { | |
| if (p != player) { | |
| ProtocolLibrary.getProtocolManager().sendServerPacket(p, packet.deepClone(), false) | |
| } | |
| } | |
| } | |
| // REMOVE PLAYER FOR SELF | |
| run { | |
| val packet = PacketContainer(PacketType.Play.Server.PLAYER_INFO) | |
| packet.playerInfoAction.write(0, EnumWrappers.PlayerInfoAction.REMOVE_PLAYER) | |
| packet.playerInfoDataLists.write( | |
| 0, | |
| listOf( | |
| PlayerInfoData( | |
| WrappedGameProfile(player.uniqueId, player.name), | |
| 0, | |
| EnumWrappers.NativeGameMode.SURVIVAL, | |
| null, | |
| ), | |
| ), | |
| ) | |
| ProtocolLibrary.getProtocolManager().sendServerPacket(player, packet, false) | |
| } | |
| // ADD PLAYER FOR EVERYONE | |
| run { | |
| val packet = PacketContainer(PacketType.Play.Server.PLAYER_INFO) | |
| packet.playerInfoAction.write(0, EnumWrappers.PlayerInfoAction.ADD_PLAYER) | |
| packet.playerInfoDataLists.write( | |
| 0, | |
| listOf( | |
| PlayerInfoData( | |
| WrappedGameProfile(player.uniqueId, player.name), | |
| player.ping, | |
| EnumWrappers.NativeGameMode.fromBukkit(player.gameMode), | |
| WrappedChatComponent.fromText(player.name), | |
| ), | |
| ), | |
| ) | |
| for (p in server.onlinePlayers) { | |
| ProtocolLibrary.getProtocolManager().sendServerPacket(p, packet.deepClone()) | |
| } | |
| } | |
| // RESPAWN FOR SELF | |
| run { | |
| server.worlds.firstOrNull { it != player.world }?.let { | |
| val location = player.location | |
| player.teleport(it.spawnLocation) | |
| player.teleport(location) | |
| } | |
| } | |
| for (p in server.onlinePlayers) { | |
| p.hidePlayer(this, player) | |
| p.showPlayer(this, player) | |
| } | |
| } | |
| @EventHandler | |
| fun onPlayerJoin(event: PlayerJoinEvent) { | |
| refresh(event.player) | |
| } | |
| override fun onCommand(sender: CommandSender, command: Command, label: String, args: Array<out String>): Boolean { | |
| if (command.name == "nick") { | |
| if (sender !is Player) { | |
| sender.sendMessage("You must be a player to execute this command.") | |
| return true | |
| } | |
| if (args.isEmpty()) { | |
| sender.sendMessage("Please specify a nickname to use.") | |
| return true | |
| } | |
| nick(sender, args.first()) | |
| return true | |
| } | |
| return false | |
| } | |
| } |
[14:08:35 ERROR]: [NickColor] Unhandled exception occurred in onPacketSending(PacketEvent) for NickColor
java.lang.NullPointerException: Cannot invoke "com.comphenix.protocol.wrappers.PlayerInfoData.getProfile()" because "data" is null
at me.unknkriod.NickPlugin$onEnable$2.onPacketSending(Main.kt:43) ~[untitled2-1.0-SNAPSHOT.jar:?]
at com.comphenix.protocol.injector.SortedPacketListenerList.invokeSendingListener(SortedPacketListenerList.java:219) ~[ProtocolLib.jar:?]
at com.comphenix.protocol.injector.SortedPacketListenerList.invokeUnpackedPacketSending(SortedPacketListenerList.java:204) ~[ProtocolLib.jar:?]
at com.comphenix.protocol.injector.SortedPacketListenerList.invokePacketSending(SortedPacketListenerList.java:149) ~[ProtocolLib.jar:?]
at com.comphenix.protocol.injector.SortedPacketListenerList.invokePacketSending(SortedPacketListenerList.java:139) ~[ProtocolLib.jar:?]
at com.comphenix.protocol.injector.PacketFilterManager.postPacketToListeners(PacketFilterManager.java:553) ~[ProtocolLib.jar:?]
at com.comphenix.protocol.injector.PacketFilterManager.invokePacketSending(PacketFilterManager.java:526) ~[ProtocolLib.jar:?]
at com.comphenix.protocol.injector.netty.manager.NetworkManagerInjector.onPacketSending(NetworkManagerInjector.java:100) ~[ProtocolLib.jar:?]
at com.comphenix.protocol.injector.netty.channel.NettyChannelInjector.processOutbound(NettyChannelInjector.java:553) ~[ProtocolLib.jar:?]
at com.comphenix.protocol.injector.netty.channel.NettyChannelInjector$2.doProxyRunnable(NettyChannelInjector.java:456) ~[ProtocolLib.jar:?]
at com.comphenix.protocol.injector.netty.channel.NettyEventLoopProxy.proxyRunnable(NettyEventLoopProxy.java:43) ~[ProtocolLib.jar:?]
at com.comphenix.protocol.injector.netty.channel.NettyEventLoopProxy.execute(NettyEventLoopProxy.java:252) ~[ProtocolLib.jar:?]
at net.minecraft.network.Connection.sendPacket(Connection.java:432) ~[?:?]
at net.minecraft.network.Connection.send(Connection.java:392) ~[?:?]
at net.minecraft.server.network.ServerCommonPacketListenerImpl.send(ServerCommonPacketListenerImpl.java:242) ~[paper-1.20.2.jar:git-Paper-318]
at net.minecraft.server.network.ServerCommonPacketListenerImpl.send(ServerCommonPacketListenerImpl.java:227) ~[paper-1.20.2.jar:git-Paper-318]
at net.minecraft.server.players.PlayerList.tick(PlayerList.java:1020) ~[paper-1.20.2.jar:git-Paper-318]
at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1582) ~[paper-1.20.2.jar:git-Paper-318]
at net.minecraft.server.dedicated.DedicatedServer.tickChildren(DedicatedServer.java:446) ~[paper-1.20.2.jar:git-Paper-318]
at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1379) ~[paper-1.20.2.jar:git-Paper-318]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1156) ~[paper-1.20.2.jar:git-Paper-318]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:315) ~[paper-1.20.2.jar:git-Paper-318]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
[14:08:35 ERROR]: Parameters:
net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket@74b23de8[
a=[UPDATE_LATENCY]
b=[b[profileId=......................................................., profile=com.mojang.authlib.GameProfile@470d99c2[id=..........................................,name=...............,properties={textures=[Property[name=textures, value=..................................................]]}], listed=true, latency=0, gameMode=SURVIVAL, displayName=io.papermc.paper.adventure.AdventureComponent@216c894f, chatSession=null]]
]
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