diff --git a/BauSystem_Main/src/de/steamwar/bausystem/features/other/NoClipCommand.java b/BauSystem_Main/src/de/steamwar/bausystem/features/other/NoClipCommand.java index 4d8d5f1f..75fd8e72 100644 --- a/BauSystem_Main/src/de/steamwar/bausystem/features/other/NoClipCommand.java +++ b/BauSystem_Main/src/de/steamwar/bausystem/features/other/NoClipCommand.java @@ -19,23 +19,20 @@ package de.steamwar.bausystem.features.other; -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.tinyprotocol.Reflection; import de.steamwar.bausystem.BauSystem; import de.steamwar.bausystem.features.tpslimit.TPSUtils; import de.steamwar.bausystem.linkage.LinkageType; import de.steamwar.bausystem.linkage.Linked; +import de.steamwar.bausystem.utils.ProtocolAPI; import de.steamwar.command.SWCommand; import de.steamwar.core.VersionedRunnable; import lombok.Getter; -import org.bukkit.Bukkit; +import net.minecraft.server.v1_15_R1.PacketPlayOutPlayerInfo; import org.bukkit.GameMode; import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer; import org.bukkit.entity.Player; @@ -46,42 +43,59 @@ import org.bukkit.event.player.PlayerGameModeChangeEvent; import org.bukkit.event.player.PlayerTeleportEvent; import org.bukkit.event.player.PlayerToggleFlightEvent; -import java.lang.reflect.InvocationTargetException; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; -import java.util.logging.Level; +import java.util.function.BiFunction; @Linked(LinkageType.COMMAND) @Linked(LinkageType.LISTENER) public class NoClipCommand extends SWCommand implements Listener { + public static final Class playerInfo = Reflection.getClass("{nms}.PacketPlayOutPlayerInfo"); + private static final Reflection.FieldAccessor playerInfoAction = Reflection.getField(playerInfo, PacketPlayOutPlayerInfo.EnumPlayerInfoAction.class, 0); + private static final Reflection.FieldAccessor playerInfoDataList = Reflection.getField(playerInfo, "b", List.class); + + public static final Class gameStateChange = Reflection.getClass("{nms}.PacketPlayOutGameStateChange"); + private static final Reflection.FieldAccessor integerFieldAccessor = Reflection.getField(gameStateChange, int.class, 0); + private static final Reflection.FieldAccessor floatFieldAccessor = Reflection.getField(gameStateChange, float.class, 0); + + public static final Class position = Reflection.getClass("{nms}.PacketPlayInFlying$PacketPlayInPosition"); + public static final Class positionLook = Reflection.getClass("{nms}.PacketPlayInFlying$PacketPlayInPositionLook"); + public static final Class useItem = Reflection.getClass("{nms}.PacketPlayInUseItem"); + public static final Class blockDig = Reflection.getClass("{nms}.PacketPlayInBlockDig"); + public static final Class windowClick = Reflection.getClass("{nms}.PacketPlayInWindowClick"); + @Getter private static final List NOCLIPS = new ArrayList<>(); private static final Map LAST_TICKS = new HashMap<>(); protected NoClipCommand() { super("noclip", "nc"); - ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(BauSystem.getInstance(), PacketType.Play.Client.POSITION, PacketType.Play.Client.POSITION_LOOK) { - @Override - public void onPacketReceiving(PacketEvent event) { - if (NOCLIPS.contains(event.getPlayer())) { - if (LAST_TICKS.getOrDefault(event.getPlayer(), -1L).equals(TPSUtils.currentTick.get())) return; - VersionedRunnable.call(new VersionedRunnable(() -> NoClipCommand_15.setGameModeInternal(event.getPlayer(), GameMode.SPECTATOR), 15)); - LAST_TICKS.put(event.getPlayer(), TPSUtils.currentTick.get()); - } + + BiFunction first = (player, o) -> { + if (NOCLIPS.contains(player)) { + if (LAST_TICKS.getOrDefault(player, -1L).equals(TPSUtils.currentTick.get())) return o; + VersionedRunnable.call(new VersionedRunnable(() -> NoClipCommand_15.setGameModeInternal(player, GameMode.SPECTATOR), 15)); + LAST_TICKS.put(player, TPSUtils.currentTick.get()); } - }); - ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(BauSystem.getInstance(), PacketType.Play.Client.USE_ITEM, PacketType.Play.Client.BLOCK_DIG, PacketType.Play.Client.WINDOW_CLICK) { - @Override - public void onPacketReceiving(PacketEvent event) { - if (NOCLIPS.contains(event.getPlayer())) { - VersionedRunnable.call(new VersionedRunnable(() -> NoClipCommand_15.setGameModeInternal(event.getPlayer(), GameMode.CREATIVE), 15)); - LAST_TICKS.put(event.getPlayer(), TPSUtils.currentTick.get()); - } + return o; + }; + ProtocolAPI.setIncomingHandler(position, first); + ProtocolAPI.setIncomingHandler(positionLook, first); + + BiFunction second = (player, o) -> { + if (NOCLIPS.contains(player)) { + if (LAST_TICKS.getOrDefault(player, -1L).equals(TPSUtils.currentTick.get())) return o; + VersionedRunnable.call(new VersionedRunnable(() -> NoClipCommand_15.setGameModeInternal(player, GameMode.SPECTATOR), 15)); + LAST_TICKS.put(player, TPSUtils.currentTick.get()); } - }); + return o; + }; + ProtocolAPI.setIncomingHandler(useItem, second); + ProtocolAPI.setIncomingHandler(blockDig, second); + ProtocolAPI.setIncomingHandler(windowClick, second); } @Register(help = true) @@ -93,23 +107,21 @@ public class NoClipCommand extends SWCommand implements Listener { player.setGameMode(GameMode.SPECTATOR); ((CraftPlayer) player).getHandle().abilities.mayBuild = true; ((CraftPlayer) player).getHandle().abilities.canInstantlyBuild = true; - PacketContainer gm3packet = ProtocolLibrary.getProtocolManager().createPacket(PacketType.Play.Server.PLAYER_INFO); - gm3packet.getPlayerInfoAction().write(0, EnumWrappers.PlayerInfoAction.UPDATE_GAME_MODE); + + Object playerInfoObject = Reflection.newInstance(playerInfo); + playerInfoAction.set(playerInfoObject, PacketPlayOutPlayerInfo.EnumPlayerInfoAction.UPDATE_GAME_MODE); List playerInfoActions = new ArrayList<>(); playerInfoActions.add(new PlayerInfoData(WrappedGameProfile.fromPlayer(player), 1, EnumWrappers.NativeGameMode.SPECTATOR, WrappedChatComponent.fromText(player.getDisplayName()))); - gm3packet.getPlayerInfoDataLists().write(0, playerInfoActions); - PacketContainer gm1packet = ProtocolLibrary.getProtocolManager().createPacket(PacketType.Play.Server.GAME_STATE_CHANGE); - gm1packet.getIntegers().write(0, 3); - gm1packet.getFloat().write(0, 1F); + playerInfoDataList.set(playerInfoObject, playerInfoActions); + + Object gameStateChangeObject = Reflection.newInstance(gameStateChange); + integerFieldAccessor.set(gameStateChangeObject, 3); + floatFieldAccessor.set(gameStateChangeObject, 1F); + NOCLIPS.add(player); BauSystem.MESSAGE.send("OTHER_NOCLIP_SLOT_INFO", player); - try { - ProtocolLibrary.getProtocolManager().sendServerPacket(player, gm1packet); - ProtocolLibrary.getProtocolManager().sendServerPacket(player, gm3packet); - } catch (InvocationTargetException e) { - Bukkit.getLogger().log(Level.SEVERE, "Invocation target exception", e); - player.performCommand("noclip"); - } + ProtocolAPI.tinyProtocol.sendPacket(player, gameStateChangeObject); + ProtocolAPI.tinyProtocol.sendPacket(player, playerInfoObject); } } diff --git a/BauSystem_Main/src/de/steamwar/bausystem/utils/ProtocolAPI.java b/BauSystem_Main/src/de/steamwar/bausystem/utils/ProtocolAPI.java new file mode 100644 index 00000000..eab08b08 --- /dev/null +++ b/BauSystem_Main/src/de/steamwar/bausystem/utils/ProtocolAPI.java @@ -0,0 +1,140 @@ +/* + * This file is a part of the SteamWar software. + * + * Copyright (C) 2021 SteamWar.de-Serverteam + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . + */ + +package de.steamwar.bausystem.utils; + +import com.comphenix.tinyprotocol.TinyProtocol; +import de.steamwar.bausystem.BauSystem; +import io.netty.channel.Channel; +import lombok.experimental.UtilityClass; +import org.bukkit.Bukkit; +import org.bukkit.entity.Player; + +import java.lang.reflect.Array; +import java.lang.reflect.Field; +import java.lang.reflect.Modifier; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.function.BiConsumer; +import java.util.function.BiFunction; +import java.util.function.UnaryOperator; + +@UtilityClass +public class ProtocolAPI { + + private static final Map, BiFunction> outgoingHandler = new HashMap<>(); + private static final Map, BiFunction> incomingHandler = new HashMap<>(); + + public static final TinyProtocol tinyProtocol = new TinyProtocol(BauSystem.getInstance()) { + @Override + public Object onPacketOutAsync(Player receiver, Channel channel, Object packet) { + BiFunction handler = outgoingHandler.get(packet.getClass()); + if (handler == null) + return packet; + return handler.apply(receiver, packet); + } + + @Override + public Object onPacketInAsync(Player sender, Channel channel, Object packet) { + BiFunction handler = incomingHandler.get(packet.getClass()); + if (handler == null) + return packet; + return handler.apply(sender, packet); + } + }; + + public static void setOutgoingHandler(Class packetClass, BiFunction handler) { + outgoingHandler.put(packetClass, handler); + } + + public static void removeOutgoingHandler(Class packetClass) { + outgoingHandler.remove(packetClass); + } + + public static void setIncomingHandler(Class packetClass, BiFunction handler) { + incomingHandler.put(packetClass, handler); + } + + public static void removeIncomingHandler(Class packetClass) { + incomingHandler.remove(packetClass); + } + + public static void broadcastPacket(Object packet) { + Bukkit.getOnlinePlayers().stream().map(tinyProtocol::getChannel).filter(tinyProtocol::hasInjected).forEach(channel -> tinyProtocol.sendPacket(channel, packet)); + } + + public static BiFunction, Object> arrayCloneGenerator(Class elementClass) { + return (array, worker) -> { + int length = Array.getLength(array); + Object result = Array.newInstance(elementClass, length); + + for (int i = 0; i < length; i++) + Array.set(result, i, worker.apply(Array.get(array, i))); + + return result; + }; + } + + public static UnaryOperator shallowCloneGenerator(Class clazz) { + BiConsumer filler = shallowFill(clazz); + + return source -> { + Object clone; + try { + clone = clazz.newInstance(); + } catch (InstantiationException | IllegalAccessException e) { + throw new IllegalStateException("Could not clone " + clazz.getName(), e); + } + filler.accept(source, clone); + return clone; + }; + } + + private static BiConsumer shallowFill(Class clazz) { + if (clazz == null) + return (source, clone) -> { + }; + + BiConsumer superFiller = shallowFill(clazz.getSuperclass()); + + Field[] fds = clazz.getDeclaredFields(); + List fields = new ArrayList<>(); + for (Field field : fds) { + if (Modifier.isStatic(field.getModifiers())) + continue; + + field.setAccessible(true); + fields.add(field); + } + + return (source, clone) -> { + superFiller.accept(source, clone); + try { + for (Field field : fields) { + field.set(clone, field.get(source)); + } + } catch (IllegalAccessException e) { + throw new IllegalStateException("Could not set field", e); + } + + }; + } +}