Java tutorial
/******************************************************************************* * Copyright (C) 2015 Jordan Dalton (jordan.8474@gmail.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 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 General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *******************************************************************************/ package ovh.tgrhavoc.aibot.protocol.v74; import java.io.*; import java.math.BigInteger; import java.security.*; import java.util.Arrays; import javax.crypto.SecretKey; import org.json.simple.JSONObject; import org.json.simple.parser.JSONParser; import ovh.tgrhavoc.aibot.MinecraftBot; import ovh.tgrhavoc.aibot.auth.*; import ovh.tgrhavoc.aibot.event.*; import ovh.tgrhavoc.aibot.event.io.*; import ovh.tgrhavoc.aibot.event.protocol.client.*; import ovh.tgrhavoc.aibot.event.protocol.server.*; import ovh.tgrhavoc.aibot.event.protocol.server.EntitySpawnEvent.SpawnLocation; import ovh.tgrhavoc.aibot.event.protocol.server.LivingEntitySpawnEvent.*; import ovh.tgrhavoc.aibot.event.protocol.server.ObjectEntitySpawnEvent.*; import ovh.tgrhavoc.aibot.event.protocol.server.PaintingSpawnEvent.PaintingSpawnLocation; import ovh.tgrhavoc.aibot.event.protocol.server.RotatedEntitySpawnEvent.RotatedSpawnLocation; import ovh.tgrhavoc.aibot.protocol.*; import ovh.tgrhavoc.aibot.protocol.v74.packets.*; import ovh.tgrhavoc.aibot.protocol.v74.packets.Packet18Animation.Animation; import ovh.tgrhavoc.aibot.protocol.v74.packets.Packet19EntityAction.Action; import ovh.tgrhavoc.aibot.world.entity.MainPlayerEntity; import ovh.tgrhavoc.aibot.world.item.*; public final class Protocol74 extends AbstractProtocol implements EventListener { public static final int VERSION = 74; public static final String VERSION_NAME = "1.6.2"; private final MinecraftBot bot; public Protocol74(MinecraftBot bot) { super(VERSION); this.bot = bot; register(Packet0KeepAlive.class); register(Packet1Login.class); register(Packet2Handshake.class); register(Packet3Chat.class); register(Packet4UpdateTime.class); register(Packet5PlayerInventory.class); register(Packet6SpawnPosition.class); register(Packet7UseEntity.class); register(Packet8UpdateHealth.class); register(Packet9Respawn.class); register(Packet10Flying.class); register(Packet11PlayerPosition.class); register(Packet12PlayerLook.class); register(Packet13PlayerLookMove.class); register(Packet14BlockDig.class); register(Packet15Place.class); register(Packet16BlockItemSwitch.class); register(Packet17Sleep.class); register(Packet18Animation.class); register(Packet19EntityAction.class); register(Packet20NamedEntitySpawn.class); register(Packet21PickupSpawn.class); register(Packet22Collect.class); register(Packet23VehicleSpawn.class); register(Packet24MobSpawn.class); register(Packet25EntityPainting.class); register(Packet26EntityExpOrb.class); register(Packet27SteerVehicle.class); register(Packet28EntityVelocity.class); register(Packet29DestroyEntity.class); register(Packet30Entity.class); register(Packet31RelEntityMove.class); register(Packet32EntityLook.class); register(Packet33RelEntityMoveLook.class); register(Packet34EntityTeleport.class); register(Packet35EntityHeadRotation.class); register(Packet38EntityStatus.class); register(Packet39AttachEntity.class); register(Packet40EntityMetadata.class); register(Packet41EntityEffect.class); register(Packet42RemoveEntityEffect.class); register(Packet43Experience.class); register(Packet44EntityProperties.class); register(Packet51MapChunk.class); register(Packet52MultiBlockChange.class); register(Packet53BlockChange.class); register(Packet54PlayNoteBlock.class); register(Packet55BlockDestroy.class); register(Packet56MapChunks.class); register(Packet60Explosion.class); register(Packet61DoorChange.class); register(Packet62NamedSoundEffect.class); register(Packet63Particle.class); register(Packet70ChangeGameState.class); register(Packet71Weather.class); register(Packet100OpenWindow.class); register(Packet101CloseWindow.class); register(Packet102WindowClick.class); register(Packet103SetSlot.class); register(Packet104WindowItems.class); register(Packet105UpdateProgressbar.class); register(Packet106Transaction.class); register(Packet107CreativeSetSlot.class); register(Packet108EnchantItem.class); register(Packet130UpdateSign.class); register(Packet131MapData.class); register(Packet132TileEntityData.class); register(Packet133OpenTileEditor.class); register(Packet200Statistic.class); register(Packet201PlayerInfo.class); register(Packet202PlayerAbilities.class); register(Packet203AutoComplete.class); register(Packet204ClientInfo.class); register(Packet205ClientCommand.class); register(Packet206SetObjective.class); register(Packet207SetScore.class); register(Packet208SetDisplayObjective.class); register(Packet209SetPlayerTeam.class); register(Packet250CustomPayload.class); register(Packet252SharedKey.class); register(Packet253EncryptionKeyRequest.class); register(Packet254ServerPing.class); register(Packet255KickDisconnect.class); bot.getEventBus().register(this); } @EventHandler public void onHandshake(HandshakeEvent event) { bot.getConnectionHandler().sendPacket(new Packet2Handshake(VERSION, event.getSession().getUsername(), event.getServer(), event.getPort())); } @EventHandler public void onInventoryChange(InventoryChangeEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); Packet102WindowClick packet = new Packet102WindowClick(); packet.windowId = event.getInventory().getWindowId(); packet.slot = event.getSlot(); packet.button = event.getButton(); packet.action = event.getTransactionId(); packet.item = event.getItem(); packet.shift = event.isShiftHeld(); handler.sendPacket(packet); } @EventHandler public void onInventoryClose(InventoryCloseEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); handler.sendPacket(new Packet101CloseWindow(event.getInventory().getWindowId())); } @EventHandler public void onHeldItemDrop(HeldItemDropEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); handler.sendPacket(new Packet14BlockDig(event.isEntireStack() ? 3 : 4, 0, 0, 0, 0)); } @EventHandler public void onHeldItemChange(HeldItemChangeEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); handler.sendPacket(new Packet16BlockItemSwitch(event.getNewSlot())); } @EventHandler public void onEntityInteract(EntityInteractEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); int mode; if (event instanceof EntityHitEvent) mode = 1; else if (event instanceof EntityUseEvent) mode = 0; else return; handler.sendPacket(new Packet7UseEntity(bot.getPlayer().getId(), event.getEntity().getId(), mode)); } @EventHandler public void onArmSwing(ArmSwingEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); handler.sendPacket(new Packet18Animation(bot.getPlayer().getId(), Animation.SWING_ARM)); } @EventHandler public void onCrouchUpdate(CrouchUpdateEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); handler.sendPacket(new Packet19EntityAction(bot.getPlayer().getId(), event.isCrouching() ? Action.CROUCH : Action.UNCROUCH, 0)); } @EventHandler public void onSprintUpdate(SprintUpdateEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); handler.sendPacket(new Packet19EntityAction(bot.getPlayer().getId(), event.isSprinting() ? Action.START_SPRINTING : Action.STOP_SPRINTING, 0)); } @EventHandler public void onBedLeave(BedLeaveEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); handler.sendPacket(new Packet19EntityAction(bot.getPlayer().getId(), Action.LEAVE_BED, 0)); } @EventHandler public void onChatSent(ChatSentEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); handler.sendPacket(new Packet3Chat(event.getMessage())); } @EventHandler public void onBlockBreak(BlockBreakEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); int code; if (event instanceof BlockBreakStartEvent) code = 0; else if (event instanceof BlockBreakStopEvent) code = 1; else if (event instanceof BlockBreakCompleteEvent) code = 2; else return; handler.sendPacket(new Packet14BlockDig(code, event.getX(), event.getY(), event.getZ(), event.getFace())); } @EventHandler public void onBlockPlace(BlockPlaceEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); Packet15Place packet = new Packet15Place(); packet.xPosition = event.getX(); packet.yPosition = event.getY(); packet.zPosition = event.getZ(); packet.direction = event.getFace(); packet.xOffset = event.getXOffset(); packet.yOffset = event.getYOffset(); packet.zOffset = event.getZOffset(); packet.itemStack = event.getItem(); handler.sendPacket(packet); } @EventHandler public void onPlayerUpdate(PlayerUpdateEvent event) { MainPlayerEntity player = event.getEntity(); double x = player.getX(), y = player.getY(), z = player.getZ(), yaw = player.getYaw(), pitch = player.getPitch(); boolean move = x != player.getLastX() || y != player.getLastY() || z != player.getLastZ(); boolean rotate = yaw != player.getLastYaw() || pitch != player.getLastPitch(); boolean onGround = player.isOnGround(); Packet10Flying packet; if (move && rotate) packet = new Packet13PlayerLookMove(x, y, y + 1.62000000476837, z, (float) yaw, (float) pitch, onGround); else if (move) packet = new Packet11PlayerPosition(x, y, y + 1.62000000476837, z, onGround); else if (rotate) packet = new Packet12PlayerLook((float) yaw, (float) pitch, onGround); else packet = new Packet10Flying(onGround); ConnectionHandler handler = bot.getConnectionHandler(); handler.sendPacket(packet); } @EventHandler public void onItemUse(ItemUseEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); Packet15Place placePacket = new Packet15Place(); placePacket.xPosition = -1; placePacket.yPosition = -1; placePacket.zPosition = -1; placePacket.itemStack = event.getItem(); if (placePacket.itemStack != null && placePacket.itemStack.getId() == 346) placePacket.direction = 255; else placePacket.direction = -1; handler.sendPacket(placePacket); } @EventHandler public void onRequestRespawn(RequestRespawnEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); handler.sendPacket(new Packet205ClientCommand(1)); } @EventHandler public void onRequestDisconnect(RequestDisconnectEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); handler.sendPacket(new Packet255KickDisconnect(event.getReason())); } @EventHandler public void onPacketProcess(PacketProcessEvent event) { Packet packet = event.getPacket(); ConnectionHandler connectionHandler = bot.getConnectionHandler(); EventBus eventBus = bot.getEventBus(); switch (packet.getId()) { // Awkward brace style to prevent accidental field name overlap, and // switch rather than instanceof for efficiency case 0: { Packet0KeepAlive keepAlivePacket = (Packet0KeepAlive) packet; connectionHandler.sendPacket(keepAlivePacket); break; } case 1: { Packet1Login loginPacket = (Packet1Login) packet; eventBus.fire(new LoginEvent(loginPacket.playerId, loginPacket.worldType, loginPacket.gameMode, loginPacket.dimension, loginPacket.difficulty, loginPacket.worldHeight, loginPacket.maxPlayers)); connectionHandler.sendPacket(new Packet204ClientInfo("en_US", 1, 0, true, 2, true)); break; } case 3: { Packet3Chat chatPacket = (Packet3Chat) packet; String message = chatPacket.message; try { JSONParser parser = new JSONParser(); JSONObject json = (JSONObject) parser.parse(message); // TODO: Actually attempt to handle new chat format if (json.containsKey("text")) eventBus.fire(new ChatReceivedEvent((String) json.get("text"))); } catch (Exception exception) { } break; } case 4: { Packet4UpdateTime timePacket = (Packet4UpdateTime) packet; eventBus.fire(new TimeUpdateEvent(timePacket.time, timePacket.otherTime)); break; } case 5: { Packet5PlayerInventory inventoryPacket = (Packet5PlayerInventory) packet; eventBus.fire(new PlayerEquipmentUpdateEvent(inventoryPacket.entityID, inventoryPacket.slot, inventoryPacket.item)); break; } case 8: { Packet8UpdateHealth updateHealthPacket = (Packet8UpdateHealth) packet; int health = (int) Math.ceil(updateHealthPacket.healthMP); eventBus.fire( new HealthUpdateEvent(health, updateHealthPacket.food, updateHealthPacket.foodSaturation)); break; } case 9: { Packet9Respawn respawnPacket = (Packet9Respawn) packet; eventBus.fire(new RespawnEvent(respawnPacket.respawnDimension, respawnPacket.difficulty, respawnPacket.gameMode, respawnPacket.worldType, respawnPacket.worldHeight)); break; } case 13: { Packet13PlayerLookMove lookMovePacket = (Packet13PlayerLookMove) packet; connectionHandler.sendPacket(lookMovePacket); eventBus.fire(new TeleportEvent(lookMovePacket.x, lookMovePacket.y, lookMovePacket.z, lookMovePacket.stance, lookMovePacket.yaw, lookMovePacket.pitch)); break; } case 17: { Packet17Sleep sleepPacket = (Packet17Sleep) packet; eventBus.fire( new SleepEvent(sleepPacket.entityID, sleepPacket.bedX, sleepPacket.bedY, sleepPacket.bedZ)); break; } case 18: { Packet18Animation animationPacket = (Packet18Animation) packet; if (animationPacket.animation == Animation.EAT_FOOD) eventBus.fire(new EntityEatEvent(animationPacket.entityId)); break; } case 20: { Packet20NamedEntitySpawn spawnPacket = (Packet20NamedEntitySpawn) packet; RotatedSpawnLocation location = new RotatedSpawnLocation(spawnPacket.xPosition / 32D, spawnPacket.yPosition / 32D, spawnPacket.zPosition / 32D, (spawnPacket.rotation * 360) / 256F, (spawnPacket.pitch * 360) / 256F); ItemStack heldItem = new BasicItemStack(spawnPacket.currentItem, 1, 0); eventBus.fire(new PlayerSpawnEvent(spawnPacket.entityId, spawnPacket.name, heldItem, location, spawnPacket.data)); break; } case 22: { Packet22Collect collectPacket = (Packet22Collect) packet; eventBus.fire(new EntityCollectEvent(collectPacket.collectedEntityId, collectPacket.collectorEntityId)); break; } case 23: { Packet23VehicleSpawn spawnPacket = (Packet23VehicleSpawn) packet; RotatedSpawnLocation location = new RotatedSpawnLocation(spawnPacket.xPosition / 32D, spawnPacket.yPosition / 32D, spawnPacket.zPosition / 32D, (spawnPacket.yaw * 360) / 256F, (spawnPacket.pitch * 360) / 256F); ObjectSpawnData spawnData; if (spawnPacket.throwerEntityId != 0) spawnData = new ThrownObjectSpawnData(spawnPacket.type, spawnPacket.throwerEntityId, spawnPacket.speedX / 8000D, spawnPacket.speedY / 8000D, spawnPacket.speedZ / 8000D); else spawnData = new ObjectSpawnData(spawnPacket.type); eventBus.fire(new ObjectEntitySpawnEvent(spawnPacket.entityId, location, spawnData)); break; } case 24: { Packet24MobSpawn spawnPacket = (Packet24MobSpawn) packet; LivingEntitySpawnLocation location = new LivingEntitySpawnLocation(spawnPacket.xPosition / 32D, spawnPacket.yPosition / 32D, spawnPacket.zPosition / 32D, (spawnPacket.yaw * 360) / 256F, (spawnPacket.pitch * 360) / 256F, (spawnPacket.headYaw * 360) / 256F); LivingEntitySpawnData data = new LivingEntitySpawnData(spawnPacket.type, spawnPacket.velocityX / 8000D, spawnPacket.velocityY / 8000D, spawnPacket.velocityZ / 8000D); eventBus.fire(new LivingEntitySpawnEvent(spawnPacket.entityId, location, data, spawnPacket.metadata)); break; } case 25: { Packet25EntityPainting spawnPacket = (Packet25EntityPainting) packet; PaintingSpawnLocation location = new PaintingSpawnLocation(spawnPacket.xPosition, spawnPacket.yPosition, spawnPacket.zPosition, spawnPacket.direction); eventBus.fire(new PaintingSpawnEvent(spawnPacket.entityId, location, spawnPacket.title)); break; } case 26: { Packet26EntityExpOrb spawnPacket = (Packet26EntityExpOrb) packet; SpawnLocation location = new SpawnLocation(spawnPacket.posX / 32D, spawnPacket.posY / 32D, spawnPacket.posZ / 32D); eventBus.fire(new ExpOrbSpawnEvent(spawnPacket.entityId, location, spawnPacket.xpValue)); break; } case 28: { Packet28EntityVelocity velocityPacket = (Packet28EntityVelocity) packet; eventBus.fire(new EntityVelocityEvent(velocityPacket.entityId, velocityPacket.motionX / 8000D, velocityPacket.motionY / 8000D, velocityPacket.motionZ / 8000D)); break; } case 29: { Packet29DestroyEntity destroyEntityPacket = (Packet29DestroyEntity) packet; for (int id : destroyEntityPacket.entityIds) eventBus.fire(new EntityDespawnEvent(id)); break; } case 30: case 31: case 32: case 33: { Packet30Entity entityPacket = (Packet30Entity) packet; if (packet instanceof Packet31RelEntityMove || packet instanceof Packet33RelEntityMoveLook) eventBus.fire(new EntityMoveEvent(entityPacket.entityId, entityPacket.xPosition / 32D, entityPacket.yPosition / 32D, entityPacket.zPosition / 32D)); if (packet instanceof Packet32EntityLook || packet instanceof Packet33RelEntityMoveLook) eventBus.fire(new EntityRotateEvent(entityPacket.entityId, (entityPacket.yaw * 360) / 256F, (entityPacket.pitch * 360) / 256F)); break; } case 34: { Packet34EntityTeleport teleportPacket = (Packet34EntityTeleport) packet; eventBus.fire(new EntityTeleportEvent(teleportPacket.entityId, teleportPacket.xPosition / 32D, teleportPacket.yPosition / 32D, teleportPacket.zPosition / 32D, (teleportPacket.yaw * 360) / 256F, (teleportPacket.pitch * 360) / 256F)); break; } case 35: { Packet35EntityHeadRotation headRotatePacket = (Packet35EntityHeadRotation) packet; eventBus.fire(new EntityHeadRotateEvent(headRotatePacket.entityId, (headRotatePacket.headRotationYaw * 360) / 256F)); break; } case 38: { Packet38EntityStatus statusPacket = (Packet38EntityStatus) packet; if (statusPacket.entityStatus == 2) eventBus.fire(new EntityHurtEvent(statusPacket.entityId)); else if (statusPacket.entityStatus == 3) eventBus.fire(new EntityDeathEvent(statusPacket.entityId)); else if (statusPacket.entityStatus == 9) eventBus.fire(new EntityStopEatingEvent(statusPacket.entityId)); break; } case 39: { Packet39AttachEntity attachEntityPacket = (Packet39AttachEntity) packet; if (attachEntityPacket.leashed) break; if (attachEntityPacket.vehicleEntityId != -1) eventBus.fire( new EntityMountEvent(attachEntityPacket.entityId, attachEntityPacket.vehicleEntityId)); else eventBus.fire(new EntityDismountEvent(attachEntityPacket.entityId)); break; } case 40: { Packet40EntityMetadata metadataPacket = (Packet40EntityMetadata) packet; eventBus.fire(new EntityMetadataUpdateEvent(metadataPacket.entityId, metadataPacket.metadata)); break; } case 43: { Packet43Experience experiencePacket = (Packet43Experience) packet; eventBus.fire( new ExperienceUpdateEvent(experiencePacket.experienceLevel, experiencePacket.experienceTotal)); break; } case 51: { Packet51MapChunk mapChunkPacket = (Packet51MapChunk) packet; processChunk(mapChunkPacket.x, mapChunkPacket.z, mapChunkPacket.chunkData, mapChunkPacket.bitmask, mapChunkPacket.additionalBitmask, true, mapChunkPacket.biomes); break; } case 52: { Packet52MultiBlockChange multiBlockChangePacket = (Packet52MultiBlockChange) packet; if (multiBlockChangePacket.metadataArray == null) return; DataInputStream in = new DataInputStream( new ByteArrayInputStream(multiBlockChangePacket.metadataArray)); try { for (int i = 0; i < multiBlockChangePacket.size; i++) { short word0 = in.readShort(); short word1 = in.readShort(); int id = (word1 & 0xfff) >> 4; int metadata = word1 & 0xf; int x = word0 >> 12 & 0xf; int z = word0 >> 8 & 0xf; int y = word0 & 0xff; eventBus.fire(new BlockChangeEvent(id, metadata, (multiBlockChangePacket.xPosition * 16) + x, y, (multiBlockChangePacket.zPosition * 16) + z)); } } catch (IOException exception) { exception.printStackTrace(); } break; } case 53: { Packet53BlockChange blockChangePacket = (Packet53BlockChange) packet; eventBus.fire(new BlockChangeEvent(blockChangePacket.type, blockChangePacket.metadata, blockChangePacket.xPosition, blockChangePacket.yPosition, blockChangePacket.zPosition)); break; } case 56: { if (bot.isMovementDisabled()) return; Packet56MapChunks chunkPacket = (Packet56MapChunks) packet; for (int i = 0; i < chunkPacket.primaryBitmap.length; i++) processChunk(chunkPacket.chunkX[i], chunkPacket.chunkZ[i], chunkPacket.chunkData[i], chunkPacket.primaryBitmap[i], chunkPacket.secondaryBitmap[i], chunkPacket.skylight, true); break; } case 100: { Packet100OpenWindow openWindowPacket = (Packet100OpenWindow) packet; eventBus.fire(new WindowOpenEvent(openWindowPacket.windowId, openWindowPacket.inventoryType, openWindowPacket.flag ? openWindowPacket.windowTitle : "", openWindowPacket.slotsCount)); break; } case 101: { Packet101CloseWindow closeWindowPacket = (Packet101CloseWindow) packet; eventBus.fire(new WindowCloseEvent(closeWindowPacket.windowId)); break; } case 103: { Packet103SetSlot slotPacket = (Packet103SetSlot) packet; eventBus.fire( new WindowSlotChangeEvent(slotPacket.windowId, slotPacket.itemSlot, slotPacket.itemStack)); break; } case 104: { Packet104WindowItems itemsPacket = (Packet104WindowItems) packet; eventBus.fire(new WindowUpdateEvent(itemsPacket.windowId, itemsPacket.itemStack)); break; } case 132: { Packet132TileEntityData tileEntityPacket = (Packet132TileEntityData) packet; eventBus.fire(new TileEntityUpdateEvent(tileEntityPacket.xPosition, tileEntityPacket.yPosition, tileEntityPacket.zPosition, tileEntityPacket.actionType, tileEntityPacket.compound)); break; } case 130: { Packet130UpdateSign signPacket = (Packet130UpdateSign) packet; eventBus.fire(new SignUpdateEvent(signPacket.x, signPacket.y, signPacket.z, signPacket.text)); break; } case 133: { Packet133OpenTileEditor editPacket = (Packet133OpenTileEditor) packet; eventBus.fire(new EditTileEntityEvent(editPacket.x, editPacket.y, editPacket.z)); break; } case 201: { Packet201PlayerInfo infoPacket = (Packet201PlayerInfo) packet; if (infoPacket.isConnected) eventBus.fire(new PlayerListUpdateEvent(infoPacket.playerName, infoPacket.ping)); else eventBus.fire(new PlayerListRemoveEvent(infoPacket.playerName)); break; } case 252: { connectionHandler.sendPacket(new Packet205ClientCommand(0)); break; } case 253: { handleServerAuthData((Packet253EncryptionKeyRequest) packet); break; } case 255: { Packet255KickDisconnect kickPacket = (Packet255KickDisconnect) packet; eventBus.fire(new KickEvent(kickPacket.reason)); break; } } } @SuppressWarnings({ "rawtypes", "unchecked" }) public void handleServerAuthData(Packet253EncryptionKeyRequest keyRequest) { String serverId = keyRequest.serverId.trim(); PublicKey publicKey = keyRequest.publicKey; SecretKey secretKey = EncryptionUtil.generateSecretKey(); ConnectionHandler connectionHandler = bot.getConnectionHandler(); if (!serverId.equals("-")) { try { AuthService service = bot.getAuthService(); Session session = bot.getSession(); String hash = new BigInteger(EncryptionUtil.encrypt(serverId, publicKey, secretKey)).toString(16); service.authenticate(service.validateSession(session), hash); } catch (InvalidSessionException exception) { connectionHandler.disconnect("Session invalid: " + exception); } catch (NoSuchAlgorithmException | UnsupportedEncodingException exception) { connectionHandler.disconnect("Unable to hash: " + exception); } catch (AuthenticationException | IOException exception) { connectionHandler.disconnect("Unable to authenticate: " + exception); } } connectionHandler.sendPacket(new Packet252SharedKey(secretKey, publicKey, keyRequest.verifyToken)); } private void processChunk(int x, int z, byte[] data, int bitmask, int additionalBitmask, boolean addSkylight, boolean addBiomes) { if (data == null) return; int chunksChanged = 0; for (int i = 0; i < 16; i++) if ((bitmask & (1 << i)) != 0) chunksChanged++; if (chunksChanged == 0) return; int[] yValues = new int[chunksChanged]; byte[][] allBlocks = new byte[chunksChanged][], allMetadata = new byte[chunksChanged][], allLight = new byte[chunksChanged][], allSkylight = new byte[chunksChanged][]; byte[] biomes = new byte[256]; int i = 0; for (int y = 0; y < 16; y++) { if ((bitmask & (1 << y)) == 0) continue; yValues[i] = y; int dataIndex = i * 4096; byte[] blocks = Arrays.copyOfRange(data, dataIndex, dataIndex + 4096); dataIndex += ((chunksChanged - i) * 4096) + (i * 2048); byte[] metadata = Arrays.copyOfRange(data, dataIndex, dataIndex + 2048); dataIndex += chunksChanged * 2048; byte[] light = Arrays.copyOfRange(data, dataIndex, dataIndex + 2048); dataIndex += chunksChanged * 2048; byte[] skylight = null; if (addSkylight) skylight = Arrays.copyOfRange(data, dataIndex, dataIndex + 2048); byte[] perBlockMetadata = new byte[4096]; byte[] perBlockLight = new byte[4096]; byte[] perBlockSkylight = new byte[4096]; for (int j = 0; j < 2048; j++) { int k = j * 2; perBlockMetadata[k] = (byte) (metadata[j] & 0x0F); perBlockLight[k] = (byte) (light[j] & 0x0F); if (addSkylight) perBlockSkylight[k] = (byte) (skylight[j] & 0x0F); k++; perBlockMetadata[k] = (byte) (metadata[j] >> 4); perBlockLight[k] = (byte) (light[j] >> 4); if (addSkylight) perBlockSkylight[k] = (byte) (skylight[j] >> 4); } allBlocks[i] = blocks; allMetadata[i] = perBlockMetadata; allLight[i] = perBlockLight; allSkylight[i] = perBlockSkylight; i++; } System.arraycopy(data, data.length - 256, biomes, 0, 256); EventBus eventBus = bot.getEventBus(); for (i = 0; i < chunksChanged; i++) { ChunkLoadEvent event = new ChunkLoadEvent(x, yValues[i], z, allBlocks[i], allMetadata[i], allLight[i], allSkylight[i], biomes.clone()); eventBus.fire(event); } } @EventHandler public void onPacketReceived(PacketReceivedEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); Packet packet = event.getPacket(); if (packet instanceof Packet252SharedKey) { if (!handler.supportsEncryption()) { handler.disconnect("ConnectionHandler does not support encryption!"); return; } if (handler.getSharedKey() == null) { handler.disconnect("No shared key!"); return; } if (!handler.isDecrypting()) handler.enableDecryption(); } else if (packet instanceof Packet106Transaction) { Packet106Transaction transactionPacket = (Packet106Transaction) packet; bot.getEventBus().fire(new WindowTransactionCompleteEvent(transactionPacket.windowId, transactionPacket.shortWindowId, transactionPacket.accepted)); transactionPacket.accepted = true; handler.sendPacket(transactionPacket); } } @EventHandler public void onPacketSent(PacketSentEvent event) { ConnectionHandler handler = bot.getConnectionHandler(); Packet packet = event.getPacket(); if (packet instanceof Packet252SharedKey) { if (!handler.supportsEncryption()) { handler.disconnect("ConnectionHandler does not support encryption!"); return; } if (handler.getSharedKey() != null) { handler.disconnect("Shared key already installed!"); return; } if (!handler.isEncrypting()) { handler.setSharedKey(((Packet252SharedKey) packet).sharedKey); handler.enableEncryption(); } } } public static final class Provider extends ProtocolProvider<Protocol74> { @Override public Protocol74 getProtocolInstance(MinecraftBot bot) { return new Protocol74(bot); } @Override public int getSupportedVersion() { return VERSION; } @Override public String getMinecraftVersion() { return VERSION_NAME; } } }