package net.minecraft.server; import com.google.common.collect.Lists; import com.google.common.primitives.Doubles; import com.google.common.primitives.Floats; import com.google.common.util.concurrent.Futures; import io.akarin.api.internal.Akari; import io.akarin.server.core.AkarinGlobalConfig; import io.netty.util.concurrent.Future; import io.netty.util.concurrent.GenericFutureListener; import java.io.IOException; import java.util.ArrayList; import java.util.Collections; import java.util.Iterator; import java.util.List; import java.util.Set; import org.apache.commons.lang3.StringUtils; import org.apache.logging.log4j.LogManager; import org.apache.logging.log4j.Logger; // CraftBukkit start import java.util.HashSet; import java.util.concurrent.ExecutionException; import java.util.concurrent.atomic.AtomicIntegerFieldUpdater; import org.bukkit.Location; import org.bukkit.craftbukkit.entity.CraftPlayer; import org.bukkit.craftbukkit.event.CraftEventFactory; import org.bukkit.craftbukkit.inventory.CraftInventoryView; import org.bukkit.craftbukkit.inventory.CraftItemStack; import org.bukkit.craftbukkit.util.CraftChatMessage; import org.bukkit.craftbukkit.util.LazyPlayerSet; import org.bukkit.craftbukkit.util.Waitable; import org.bukkit.entity.Player; import org.bukkit.event.Event; import org.bukkit.event.block.Action; import org.bukkit.event.block.SignChangeEvent; import org.bukkit.event.inventory.ClickType; import org.bukkit.event.inventory.CraftItemEvent; import org.bukkit.event.inventory.InventoryAction; import org.bukkit.event.inventory.InventoryClickEvent; import org.bukkit.event.inventory.InventoryCreativeEvent; import org.bukkit.event.inventory.InventoryType.SlotType; import org.bukkit.event.player.AsyncPlayerChatEvent; import org.bukkit.event.player.PlayerAnimationEvent; import org.bukkit.event.player.PlayerChatEvent; import org.bukkit.event.player.PlayerCommandPreprocessEvent; import org.bukkit.event.player.PlayerInteractAtEntityEvent; import org.bukkit.event.player.PlayerInteractEntityEvent; import org.bukkit.event.player.PlayerItemHeldEvent; import org.bukkit.event.player.PlayerKickEvent; import org.bukkit.event.player.PlayerMoveEvent; import org.bukkit.event.player.PlayerResourcePackStatusEvent; import org.bukkit.event.player.PlayerSwapHandItemsEvent; import org.bukkit.event.player.PlayerTeleportEvent; import org.bukkit.event.player.PlayerToggleFlightEvent; import org.bukkit.event.player.PlayerToggleSneakEvent; import org.bukkit.event.player.PlayerToggleSprintEvent; import org.bukkit.inventory.CraftingInventory; import org.bukkit.inventory.EquipmentSlot; import org.bukkit.inventory.InventoryView; import org.bukkit.util.NumberConversions; import com.destroystokyo.paper.event.player.IllegalPacketEvent; // Paper import com.destroystokyo.paper.event.player.PlayerJumpEvent; // Paper import co.aikar.timings.MinecraftTimings; // Paper // CraftBukkit end /** * Akarin Changes Note * 1) Add volatile to fields (slack service) * 2) Expose private members (slack service) * 3) Removed keep-alive codes (slack service) * 4) Accessible keep-alive limit (feature, compatibility) */ public class PlayerConnection implements PacketListenerPlayIn, ITickable { private static final Logger LOGGER = LogManager.getLogger(); public final NetworkManager networkManager; private final MinecraftServer minecraftServer; public EntityPlayer player; private int e; private long f = getCurrentMillis(); public void setLastPing(long lastPing) { this.f = lastPing;}; public long getLastPing() { return this.f;}; // Paper - OBFHELPER - set ping to delay initial // Akarin - private -> public private boolean g; public void setPendingPing(boolean isPending) { this.g = isPending;}; public boolean isPendingPing() { return this.g;}; // Paper - OBFHELPER // Akarin - private -> public private long h; public void setKeepAliveID(long keepAliveID) { this.h = keepAliveID;}; public long getKeepAliveID() {return this.h; }; // Paper - OBFHELPER // Akarin - private -> public // CraftBukkit start - multithreaded fields private volatile int chatThrottle; private static final AtomicIntegerFieldUpdater chatSpamField = AtomicIntegerFieldUpdater.newUpdater(PlayerConnection.class, "chatThrottle"); private final java.util.concurrent.atomic.AtomicInteger tabSpamLimiter = new java.util.concurrent.atomic.AtomicInteger(); // Paper - configurable tab spam limits // CraftBukkit end private int j; private final IntHashMap k = new IntHashMap(); private double l; private double m; private double n; private double o; private double p; private double q; private Entity r; private double s; private double t; private double u; private double v; private double w; private double x; private Vec3D teleportPos; private int teleportAwait; private int A; private boolean B; private int C; private boolean D; private int E; private int receivedMovePackets; private int processedMovePackets; private AutoRecipe H = new AutoRecipe(); private static final long KEEPALIVE_LIMIT = /*Long.getLong("paper.playerconnection.keepalive", 30)*/ AkarinGlobalConfig.keepAliveTimeout * 1000; // Paper - provide property to set keepalive limit // Akarin - more accessible - keep changes public PlayerConnection(MinecraftServer minecraftserver, NetworkManager networkmanager, EntityPlayer entityplayer) { this.minecraftServer = minecraftserver; this.networkManager = networkmanager; networkmanager.setPacketListener(this); this.player = entityplayer; entityplayer.playerConnection = this; // CraftBukkit start - add fields and methods this.server = minecraftserver.server; } private final org.bukkit.craftbukkit.CraftServer server; public volatile boolean processedDisconnect; // Akarin - private -> public - volatile private int lastTick = MinecraftServer.currentTick; private int allowedPlayerTicks = 1; private int lastDropTick = MinecraftServer.currentTick; private int lastBookTick = MinecraftServer.currentTick; private int dropCount = 0; private static final int SURVIVAL_PLACE_DISTANCE_SQUARED = 6 * 6; private static final int CREATIVE_PLACE_DISTANCE_SQUARED = 7 * 7; // Get position of last block hit for BlockDamageLevel.STOPPED private double lastPosX = Double.MAX_VALUE; private double lastPosY = Double.MAX_VALUE; private double lastPosZ = Double.MAX_VALUE; private float lastPitch = Float.MAX_VALUE; private float lastYaw = Float.MAX_VALUE; private boolean justTeleported = false; private boolean hasMoved; // Spigot public CraftPlayer getPlayer() { return (this.player == null) ? null : (CraftPlayer) this.player.getBukkitEntity(); } private final static HashSet invalidItems = new HashSet(java.util.Arrays.asList(8, 9, 10, 11, 26, 34, 36, 43, 51, 55, 59, 62, 63, 64, 68, 71, 74, 75, 83, 90, 92, 93, 94, 104, 105, 115, 117, 118, 119, 125, 127, 132, 140, 141, 142, 144)); // TODO: Check after every update. // CraftBukkit end public void e() { this.syncPosition(); this.player.playerTick(); this.player.setLocation(this.l, this.m, this.n, this.player.yaw, this.player.pitch); ++this.e; this.processedMovePackets = this.receivedMovePackets; if (this.B) { if (++this.C > 80) { PlayerConnection.LOGGER.warn("{} was kicked for floating too long!", this.player.getName()); this.disconnect(com.destroystokyo.paper.PaperConfig.flyingKickPlayerMessage); // Paper - use configurable kick message return; } } else { this.B = false; this.C = 0; } this.r = this.player.getVehicle(); if (this.r != this.player && this.r.bE() == this.player) { this.s = this.r.locX; this.t = this.r.locY; this.u = this.r.locZ; this.v = this.r.locX; this.w = this.r.locY; this.x = this.r.locZ; if (this.D && this.player.getVehicle().bE() == this.player) { if (++this.E > 80) { PlayerConnection.LOGGER.warn("{} was kicked for floating a vehicle too long!", this.player.getName()); this.disconnect(com.destroystokyo.paper.PaperConfig.flyingKickVehicleMessage); // Paper - use configurable kick message return; } } else { this.D = false; this.E = 0; } } else { this.r = null; this.D = false; this.E = 0; } this.minecraftServer.methodProfiler.a("keepAlive"); /* // Akarin // Paper Start - give clients a longer time to respond to pings as per pre 1.12.2 timings // This should effectively place the keepalive handling back to "as it was" before 1.12.2 long currentTime = this.getCurrentMillis(); long elapsedTime = currentTime - this.getLastPing(); if (this.isPendingPing()) { // We're pending a ping from the client if (!this.processedDisconnect && elapsedTime >= KEEPALIVE_LIMIT) { // check keepalive limit, don't fire if already disconnected PlayerConnection.LOGGER.warn("{} was kicked due to keepalive timeout!", this.player.getName()); // more info this.disconnect(new ChatMessage("disconnect.timeout")); } } else { if (elapsedTime >= 15000L) { // 15 seconds this.setPendingPing(true); this.setLastPing(currentTime); this.setKeepAliveID(currentTime); this.sendPacket(new PacketPlayOutKeepAlive(this.getKeepAliveID())); } } // Paper end */ // Akarin this.minecraftServer.methodProfiler.b(); // CraftBukkit start for (int spam; (spam = this.chatThrottle) > 0 && !chatSpamField.compareAndSet(this, spam, spam - 1); ) ; if (tabSpamLimiter.get() > 0) tabSpamLimiter.getAndDecrement(); // Paper - split to seperate variable /* Use thread-safe field access instead if (this.chatThrottle > 0) { --this.chatThrottle; } */ // CraftBukkit end if (this.j > 0) { --this.j; } if (this.player.J() > 0L && this.minecraftServer.getIdleTimeout() > 0 && MinecraftServer.aw() - this.player.J() > (long) (this.minecraftServer.getIdleTimeout() * 1000 * 60)) { this.player.resetIdleTimer(); // CraftBukkit - SPIGOT-854 this.disconnect(new ChatMessage("multiplayer.disconnect.idling", new Object[0])); } } public void syncPosition() { this.l = this.player.locX; this.m = this.player.locY; this.n = this.player.locZ; this.o = this.player.locX; this.p = this.player.locY; this.q = this.player.locZ; } public NetworkManager a() { return this.networkManager; } // CraftBukkit start @Deprecated public void disconnect(IChatBaseComponent ichatbasecomponent) { disconnect(CraftChatMessage.fromComponent(ichatbasecomponent, EnumChatFormat.WHITE)); } // CraftBukkit end public void disconnect(String s) { // CraftBukkit start - fire PlayerKickEvent if (this.processedDisconnect) { return; } String leaveMessage = EnumChatFormat.YELLOW + this.player.getName() + " left the game."; PlayerKickEvent event = new PlayerKickEvent(this.server.getPlayer(this.player), s, leaveMessage); if (this.server.getServer().isRunning()) { this.server.getPluginManager().callEvent(event); } if (event.isCancelled()) { // Do not kick the player return; } // Send the possibly modified leave message s = event.getReason(); // CraftBukkit end final ChatComponentText chatcomponenttext = new ChatComponentText(s); this.networkManager.sendPacket(new PacketPlayOutKickDisconnect(chatcomponenttext), new GenericFutureListener() { public void operationComplete(Future future) throws Exception { // CraftBukkit - decompile error PlayerConnection.this.networkManager.close(chatcomponenttext); } }, new GenericFutureListener[0]); this.a(chatcomponenttext); // CraftBukkit - fire quit instantly this.networkManager.stopReading(); // CraftBukkit - Don't wait this.minecraftServer.postToMainThread(new Runnable() { public void run() { PlayerConnection.this.networkManager.handleDisconnection(); } }); } public void a(PacketPlayInSteerVehicle packetplayinsteervehicle) { PlayerConnectionUtils.ensureMainThread(packetplayinsteervehicle, this, this.player.x()); this.player.a(packetplayinsteervehicle.a(), packetplayinsteervehicle.b(), packetplayinsteervehicle.c(), packetplayinsteervehicle.d()); } private static boolean b(PacketPlayInFlying packetplayinflying) { return Doubles.isFinite(packetplayinflying.a(0.0D)) && Doubles.isFinite(packetplayinflying.b(0.0D)) && Doubles.isFinite(packetplayinflying.c(0.0D)) && Floats.isFinite(packetplayinflying.b(0.0F)) && Floats.isFinite(packetplayinflying.a(0.0F)) ? Math.abs(packetplayinflying.a(0.0D)) > 3.0E7D || Math.abs(packetplayinflying.b(0.0D)) > 3.0E7D || Math.abs(packetplayinflying.c(0.0D)) > 3.0E7D : true; } private static boolean b(PacketPlayInVehicleMove packetplayinvehiclemove) { return !Doubles.isFinite(packetplayinvehiclemove.getX()) || !Doubles.isFinite(packetplayinvehiclemove.getY()) || !Doubles.isFinite(packetplayinvehiclemove.getZ()) || !Floats.isFinite(packetplayinvehiclemove.getPitch()) || !Floats.isFinite(packetplayinvehiclemove.getYaw()); } public void a(PacketPlayInVehicleMove packetplayinvehiclemove) { PlayerConnectionUtils.ensureMainThread(packetplayinvehiclemove, this, this.player.x()); if (b(packetplayinvehiclemove)) { this.disconnect(new ChatMessage("multiplayer.disconnect.invalid_vehicle_movement", new Object[0])); } else { Entity entity = this.player.getVehicle(); if (entity != this.player && entity.bE() == this.player && entity == this.r) { WorldServer worldserver = this.player.x(); double d0 = entity.locX; double d1 = entity.locY; double d2 = entity.locZ; double d3 = packetplayinvehiclemove.getX(); double d4 = packetplayinvehiclemove.getY(); double d5 = packetplayinvehiclemove.getZ(); float f = packetplayinvehiclemove.getYaw(); float f1 = packetplayinvehiclemove.getPitch(); double d6 = d3 - this.s; double d7 = d4 - this.t; double d8 = d5 - this.u; double d9 = entity.motX * entity.motX + entity.motY * entity.motY + entity.motZ * entity.motZ; double d10 = d6 * d6 + d7 * d7 + d8 * d8; // CraftBukkit start - handle custom speeds and skipped ticks this.allowedPlayerTicks += (System.currentTimeMillis() / 50) - this.lastTick; this.allowedPlayerTicks = Math.max(this.allowedPlayerTicks, 1); this.lastTick = (int) (System.currentTimeMillis() / 50); ++this.receivedMovePackets; int i = this.receivedMovePackets - this.processedMovePackets; if (i > Math.max(this.allowedPlayerTicks, 5)) { PlayerConnection.LOGGER.debug(this.player.getName() + " is sending move packets too frequently (" + i + " packets since last tick)"); i = 1; } if (d10 > 0) { allowedPlayerTicks -= 1; } else { allowedPlayerTicks = 20; } float speed; if (player.abilities.isFlying) { speed = player.abilities.flySpeed * 20f; } else { speed = player.abilities.walkSpeed * 10f; } speed *= 2f; // TODO: Get the speed of the vehicle instead of the player if (d10 - d9 > Math.max(100.0D, Math.pow((double) (org.spigotmc.SpigotConfig.movedTooQuicklyMultiplier * (float) i * speed), 2)) && (!this.minecraftServer.R() || !this.minecraftServer.Q().equals(entity.getName()))) { // Spigot // CraftBukkit end PlayerConnection.LOGGER.warn("{} (vehicle of {}) moved too quickly! {},{},{}", entity.getName(), this.player.getName(), Double.valueOf(d6), Double.valueOf(d7), Double.valueOf(d8)); this.networkManager.sendPacket(new PacketPlayOutVehicleMove(entity)); return; } boolean flag = worldserver.getCubes(entity, entity.getBoundingBox().shrink(0.0625D)).isEmpty(); d6 = d3 - this.v; d7 = d4 - this.w - 1.0E-6D; d8 = d5 - this.x; entity.move(EnumMoveType.PLAYER, d6, d7, d8); double d11 = d7; d6 = d3 - entity.locX; d7 = d4 - entity.locY; if (d7 > -0.5D || d7 < 0.5D) { d7 = 0.0D; } d8 = d5 - entity.locZ; d10 = d6 * d6 + d7 * d7 + d8 * d8; boolean flag1 = false; if (d10 > org.spigotmc.SpigotConfig.movedWronglyThreshold) { // Spigot flag1 = true; PlayerConnection.LOGGER.warn(entity.getName() + " (vehicle of " + this.player.getName() + ") moved wrongly!"); // Paper - More informative } entity.setLocation(d3, d4, d5, f, f1); Location curPos = getPlayer().getLocation(); // Paper player.setLocation(d3, d4, d5, f, f1); // Paper boolean flag2 = worldserver.getCubes(entity, entity.getBoundingBox().shrink(0.0625D)).isEmpty(); if (flag && (flag1 || !flag2)) { entity.setLocation(d0, d1, d2, f, f1); player.setLocation(d0, d1, d2, f, f1); // Paper this.networkManager.sendPacket(new PacketPlayOutVehicleMove(entity)); return; } // CraftBukkit start - fire PlayerMoveEvent Player player = this.getPlayer(); // Spigot Start if ( !hasMoved ) { //Location curPos = player.getLocation(); // Paper - move up lastPosX = curPos.getX(); lastPosY = curPos.getY(); lastPosZ = curPos.getZ(); lastYaw = curPos.getYaw(); lastPitch = curPos.getPitch(); hasMoved = true; } // Spigot End Location from = new Location(player.getWorld(), lastPosX, lastPosY, lastPosZ, lastYaw, lastPitch); // Get the Players previous Event location. Location to = player.getLocation().clone(); // Start off the To location as the Players current location. // If the packet contains movement information then we update the To location with the correct XYZ. to.setX(packetplayinvehiclemove.getX()); to.setY(packetplayinvehiclemove.getY()); to.setZ(packetplayinvehiclemove.getZ()); // If the packet contains look information then we update the To location with the correct Yaw & Pitch. to.setYaw(packetplayinvehiclemove.getYaw()); to.setPitch(packetplayinvehiclemove.getPitch()); // Prevent 40 event-calls for less than a single pixel of movement >.> double delta = Math.pow(this.lastPosX - to.getX(), 2) + Math.pow(this.lastPosY - to.getY(), 2) + Math.pow(this.lastPosZ - to.getZ(), 2); float deltaAngle = Math.abs(this.lastYaw - to.getYaw()) + Math.abs(this.lastPitch - to.getPitch()); if ((delta > 1f / 256 || deltaAngle > 10f) && !this.player.isFrozen()) { this.lastPosX = to.getX(); this.lastPosY = to.getY(); this.lastPosZ = to.getZ(); this.lastYaw = to.getYaw(); this.lastPitch = to.getPitch(); // Skip the first time we do this if (true) { // Spigot - don't skip any move events Location oldTo = to.clone(); PlayerMoveEvent event = new PlayerMoveEvent(player, from, to); this.server.getPluginManager().callEvent(event); // If the event is cancelled we move the player back to their old location. if (event.isCancelled()) { teleport(from); return; } // If a Plugin has changed the To destination then we teleport the Player // there to avoid any 'Moved wrongly' or 'Moved too quickly' errors. // We only do this if the Event was not cancelled. if (!oldTo.equals(event.getTo()) && !event.isCancelled()) { this.player.getBukkitEntity().teleport(event.getTo(), PlayerTeleportEvent.TeleportCause.PLUGIN); return; } // Check to see if the Players Location has some how changed during the call of the event. // This can happen due to a plugin teleporting the player instead of using .setTo() if (!from.equals(this.getPlayer().getLocation()) && this.justTeleported) { this.justTeleported = false; return; } } } // CraftBukkit end this.minecraftServer.getPlayerList().d(this.player); this.player.checkMovement(this.player.locX - d0, this.player.locY - d1, this.player.locZ - d2); this.D = d11 >= -0.03125D && !this.minecraftServer.getAllowFlight() && !worldserver.c(entity.getBoundingBox().g(0.0625D).b(0.0D, -0.55D, 0.0D)); this.v = entity.locX; this.w = entity.locY; this.x = entity.locZ; } } } public void a(PacketPlayInTeleportAccept packetplayinteleportaccept) { PlayerConnectionUtils.ensureMainThread(packetplayinteleportaccept, this, this.player.x()); if (packetplayinteleportaccept.a() == this.teleportAwait && this.teleportPos != null) { // CraftBukkit this.player.setLocation(this.teleportPos.x, this.teleportPos.y, this.teleportPos.z, this.player.yaw, this.player.pitch); if (this.player.L()) { this.o = this.teleportPos.x; this.p = this.teleportPos.y; this.q = this.teleportPos.z; this.player.M(); } this.teleportPos = null; } } public void a(PacketPlayInRecipeDisplayed packetplayinrecipedisplayed) { PlayerConnectionUtils.ensureMainThread(packetplayinrecipedisplayed, this, this.player.x()); if (packetplayinrecipedisplayed.a() == PacketPlayInRecipeDisplayed.Status.SHOWN) { this.player.F().f(packetplayinrecipedisplayed.b()); } else if (packetplayinrecipedisplayed.a() == PacketPlayInRecipeDisplayed.Status.SETTINGS) { this.player.F().a(packetplayinrecipedisplayed.c()); this.player.F().b(packetplayinrecipedisplayed.d()); } } public void a(PacketPlayInAdvancements packetplayinadvancements) { PlayerConnectionUtils.ensureMainThread(packetplayinadvancements, this, this.player.x()); if (packetplayinadvancements.b() == PacketPlayInAdvancements.Status.OPENED_TAB) { MinecraftKey minecraftkey = packetplayinadvancements.c(); Advancement advancement = this.minecraftServer.getAdvancementData().a(minecraftkey); if (advancement != null) { this.player.getAdvancementData().a(advancement); } } } public void a(PacketPlayInFlying packetplayinflying) { PlayerConnectionUtils.ensureMainThread(packetplayinflying, this, this.player.x()); if (b(packetplayinflying)) { this.disconnect(new ChatMessage("multiplayer.disconnect.invalid_player_movement", new Object[0])); } else { WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension); if (!this.player.viewingCredits && !this.player.isFrozen()) { // CraftBukkit if (this.e == 0) { this.syncPosition(); } if (this.teleportPos != null) { if (this.e - this.A > 20) { this.A = this.e; this.a(this.teleportPos.x, this.teleportPos.y, this.teleportPos.z, this.player.yaw, this.player.pitch); } this.allowedPlayerTicks = 20; // CraftBukkit } else { this.A = this.e; if (this.player.isPassenger()) { this.player.setLocation(this.player.locX, this.player.locY, this.player.locZ, packetplayinflying.a(this.player.yaw), packetplayinflying.b(this.player.pitch)); this.minecraftServer.getPlayerList().d(this.player); this.allowedPlayerTicks = 20; // CraftBukkit } else { // CraftBukkit - Make sure the move is valid but then reset it for plugins to modify double prevX = player.locX; double prevY = player.locY; double prevZ = player.locZ; float prevYaw = player.yaw; float prevPitch = player.pitch; // CraftBukkit end double d0 = this.player.locX; double d1 = this.player.locY; double d2 = this.player.locZ; double d3 = this.player.locY; double d4 = packetplayinflying.a(this.player.locX); double d5 = packetplayinflying.b(this.player.locY); double d6 = packetplayinflying.c(this.player.locZ); float f = packetplayinflying.a(this.player.yaw); float f1 = packetplayinflying.b(this.player.pitch); double d7 = d4 - this.l; double d8 = d5 - this.m; double d9 = d6 - this.n; double d10 = this.player.motX * this.player.motX + this.player.motY * this.player.motY + this.player.motZ * this.player.motZ; double d11 = d7 * d7 + d8 * d8 + d9 * d9; if (this.player.isSleeping()) { if (d11 > 1.0D) { this.a(this.player.locX, this.player.locY, this.player.locZ, packetplayinflying.a(this.player.yaw), packetplayinflying.b(this.player.pitch)); } } else { ++this.receivedMovePackets; int i = this.receivedMovePackets - this.processedMovePackets; // CraftBukkit start - handle custom speeds and skipped ticks this.allowedPlayerTicks += (System.currentTimeMillis() / 50) - this.lastTick; this.allowedPlayerTicks = Math.max(this.allowedPlayerTicks, 1); this.lastTick = (int) (System.currentTimeMillis() / 50); if (i > Math.max(this.allowedPlayerTicks, 5)) { PlayerConnection.LOGGER.debug("{} is sending move packets too frequently ({} packets since last tick)", this.player.getName(), Integer.valueOf(i)); i = 1; } if (packetplayinflying.hasLook || d11 > 0) { allowedPlayerTicks -= 1; } else { allowedPlayerTicks = 20; } float speed; if (player.abilities.isFlying) { speed = player.abilities.flySpeed * 20f; } else { speed = player.abilities.walkSpeed * 10f; } if (!this.player.L() && (!this.player.x().getGameRules().getBoolean("disableElytraMovementCheck") || !this.player.cP())) { float f2 = this.player.cP() ? 300.0F : 100.0F; if (d11 - d10 > Math.max(f2, Math.pow((double) (org.spigotmc.SpigotConfig.movedTooQuicklyMultiplier * (float) i * speed), 2)) && (!this.minecraftServer.R() || !this.minecraftServer.Q().equals(this.player.getName()))) { // Spigot // CraftBukkit end PlayerConnection.LOGGER.warn("{} moved too quickly! {},{},{}", this.player.getName(), Double.valueOf(d7), Double.valueOf(d8), Double.valueOf(d9)); this.a(this.player.locX, this.player.locY, this.player.locZ, this.player.yaw, this.player.pitch); return; } } boolean flag = worldserver.getCubes(this.player, this.player.getBoundingBox().shrink(0.0625D)).isEmpty(); d7 = d4 - this.o; d8 = d5 - this.p; d9 = d6 - this.q; if (this.player.onGround && !packetplayinflying.a() && d8 > 0.0D) { // Paper start - Add player jump event Player player = this.getPlayer(); Location from = new Location(player.getWorld(), lastPosX, lastPosY, lastPosZ, lastYaw, lastPitch); // Get the Players previous Event location. Location to = player.getLocation().clone(); // Start off the To location as the Players current location. // If the packet contains movement information then we update the To location with the correct XYZ. if (packetplayinflying.hasPos) { to.setX(packetplayinflying.x); to.setY(packetplayinflying.y); to.setZ(packetplayinflying.z); } // If the packet contains look information then we update the To location with the correct Yaw & Pitch. if (packetplayinflying.hasLook) { to.setYaw(packetplayinflying.yaw); to.setPitch(packetplayinflying.pitch); } PlayerJumpEvent event = new PlayerJumpEvent(player, from, to); if (event.callEvent()) { this.player.jump(); } else { from = event.getFrom(); this.internalTeleport(from.getX(), from.getY(), from.getZ(), from.getYaw(), from.getPitch(), Collections.emptySet()); return; } // Paper end } this.player.move(EnumMoveType.PLAYER, d7, d8, d9); this.player.onGround = packetplayinflying.a(); double d12 = d8; d7 = d4 - this.player.locX; d8 = d5 - this.player.locY; if (d8 > -0.5D || d8 < 0.5D) { d8 = 0.0D; } d9 = d6 - this.player.locZ; d11 = d7 * d7 + d8 * d8 + d9 * d9; boolean flag1 = false; if (!this.player.L() && d11 > org.spigotmc.SpigotConfig.movedWronglyThreshold && !this.player.isSleeping() && !this.player.playerInteractManager.isCreative() && this.player.playerInteractManager.getGameMode() != EnumGamemode.SPECTATOR) { // Spigot flag1 = true; PlayerConnection.LOGGER.warn("{} moved wrongly!", this.player.getName()); } this.player.setLocation(d4, d5, d6, f, f1); this.player.checkMovement(this.player.locX - d0, this.player.locY - d1, this.player.locZ - d2); if (!this.player.noclip && !this.player.isSleeping()) { boolean flag2 = worldserver.getCubes(this.player, this.player.getBoundingBox().shrink(0.0625D)).isEmpty(); if (flag && (flag1 || !flag2)) { this.a(d0, d1, d2, f, f1); return; } } // CraftBukkit start - fire PlayerMoveEvent // Rest to old location first this.player.setLocation(prevX, prevY, prevZ, prevYaw, prevPitch); Player player = this.getPlayer(); Location from = new Location(player.getWorld(), lastPosX, lastPosY, lastPosZ, lastYaw, lastPitch); // Get the Players previous Event location. Location to = player.getLocation().clone(); // Start off the To location as the Players current location. // If the packet contains movement information then we update the To location with the correct XYZ. if (packetplayinflying.hasPos) { to.setX(packetplayinflying.x); to.setY(packetplayinflying.y); to.setZ(packetplayinflying.z); } // If the packet contains look information then we update the To location with the correct Yaw & Pitch. if (packetplayinflying.hasLook) { to.setYaw(packetplayinflying.yaw); to.setPitch(packetplayinflying.pitch); } // Prevent 40 event-calls for less than a single pixel of movement >.> double delta = Math.pow(this.lastPosX - to.getX(), 2) + Math.pow(this.lastPosY - to.getY(), 2) + Math.pow(this.lastPosZ - to.getZ(), 2); float deltaAngle = Math.abs(this.lastYaw - to.getYaw()) + Math.abs(this.lastPitch - to.getPitch()); if ((delta > 1f / 256 || deltaAngle > 10f) && !this.player.isFrozen()) { this.lastPosX = to.getX(); this.lastPosY = to.getY(); this.lastPosZ = to.getZ(); this.lastYaw = to.getYaw(); this.lastPitch = to.getPitch(); // Skip the first time we do this if (from.getX() != Double.MAX_VALUE) { Location oldTo = to.clone(); PlayerMoveEvent event = new PlayerMoveEvent(player, from, to); this.server.getPluginManager().callEvent(event); // If the event is cancelled we move the player back to their old location. if (event.isCancelled()) { teleport(from); return; } // If a Plugin has changed the To destination then we teleport the Player // there to avoid any 'Moved wrongly' or 'Moved too quickly' errors. // We only do this if the Event was not cancelled. if (!oldTo.equals(event.getTo()) && !event.isCancelled()) { this.player.getBukkitEntity().teleport(event.getTo(), PlayerTeleportEvent.TeleportCause.PLUGIN); return; } // Check to see if the Players Location has some how changed during the call of the event. // This can happen due to a plugin teleporting the player instead of using .setTo() if (!from.equals(this.getPlayer().getLocation()) && this.justTeleported) { this.justTeleported = false; return; } } } this.player.setLocation(d4, d5, d6, f, f1); // Copied from above // CraftBukkit end this.B = d12 >= -0.03125D; this.B &= !this.minecraftServer.getAllowFlight() && !this.player.abilities.canFly; this.B &= !this.player.hasEffect(MobEffects.LEVITATION) && !this.player.cP() && !worldserver.c(this.player.getBoundingBox().g(0.0625D).b(0.0D, -0.55D, 0.0D)); this.player.onGround = packetplayinflying.a(); this.minecraftServer.getPlayerList().d(this.player); this.player.a(this.player.locY - d3, packetplayinflying.a()); this.o = this.player.locX; this.p = this.player.locY; this.q = this.player.locZ; } } } } } } public void a(double d0, double d1, double d2, float f, float f1) { this.a(d0, d1, d2, f, f1, Collections.emptySet()); } // CraftBukkit start - Delegate to teleport(Location) public void a(double d0, double d1, double d2, float f, float f1, PlayerTeleportEvent.TeleportCause cause) { this.a(d0, d1, d2, f, f1, Collections.emptySet(), cause); } public void a(double d0, double d1, double d2, float f, float f1, Set set) { this.a(d0, d1, d2, f, f1, set, PlayerTeleportEvent.TeleportCause.UNKNOWN); } public void a(double d0, double d1, double d2, float f, float f1, Set set, PlayerTeleportEvent.TeleportCause cause) { Player player = this.getPlayer(); Location from = player.getLocation(); double x = d0; double y = d1; double z = d2; float yaw = f; float pitch = f1; if (set.contains(PacketPlayOutPosition.EnumPlayerTeleportFlags.X)) { x += from.getX(); } if (set.contains(PacketPlayOutPosition.EnumPlayerTeleportFlags.Y)) { y += from.getY(); } if (set.contains(PacketPlayOutPosition.EnumPlayerTeleportFlags.Z)) { z += from.getZ(); } if (set.contains(PacketPlayOutPosition.EnumPlayerTeleportFlags.Y_ROT)) { yaw += from.getYaw(); } if (set.contains(PacketPlayOutPosition.EnumPlayerTeleportFlags.X_ROT)) { pitch += from.getPitch(); } Location to = new Location(this.getPlayer().getWorld(), x, y, z, yaw, pitch); PlayerTeleportEvent event = new PlayerTeleportEvent(player, from.clone(), to.clone(), cause); this.server.getPluginManager().callEvent(event); if (event.isCancelled() || !to.equals(event.getTo())) { set.clear(); // Can't relative teleport to = event.isCancelled() ? event.getFrom() : event.getTo(); d0 = to.getX(); d1 = to.getY(); d2 = to.getZ(); f = to.getYaw(); f1 = to.getPitch(); } this.internalTeleport(d0, d1, d2, f, f1, set); } public void teleport(Location dest) { internalTeleport(dest.getX(), dest.getY(), dest.getZ(), dest.getYaw(), dest.getPitch(), Collections.emptySet()); } private void internalTeleport(double d0, double d1, double d2, float f, float f1, Set set) { // CraftBukkit start if (Float.isNaN(f)) { f = 0; } if (Float.isNaN(f1)) { f1 = 0; } this.justTeleported = true; // CraftBukkit end double d3 = set.contains(PacketPlayOutPosition.EnumPlayerTeleportFlags.X) ? this.player.locX : 0.0D; double d4 = set.contains(PacketPlayOutPosition.EnumPlayerTeleportFlags.Y) ? this.player.locY : 0.0D; double d5 = set.contains(PacketPlayOutPosition.EnumPlayerTeleportFlags.Z) ? this.player.locZ : 0.0D; this.teleportPos = new Vec3D(d0 + d3, d1 + d4, d2 + d5); float f2 = f; float f3 = f1; if (set.contains(PacketPlayOutPosition.EnumPlayerTeleportFlags.Y_ROT)) { f2 = f + this.player.yaw; } if (set.contains(PacketPlayOutPosition.EnumPlayerTeleportFlags.X_ROT)) { f3 = f1 + this.player.pitch; } // CraftBukkit start - update last location this.lastPosX = this.teleportPos.x; this.lastPosY = this.teleportPos.y; this.lastPosZ = this.teleportPos.z; this.lastYaw = f2; this.lastPitch = f3; // CraftBukkit end if (++this.teleportAwait == Integer.MAX_VALUE) { this.teleportAwait = 0; } this.A = this.e; this.player.setLocation(this.teleportPos.x, this.teleportPos.y, this.teleportPos.z, f2, f3); this.player.playerConnection.sendPacket(new PacketPlayOutPosition(d0, d1, d2, f, f1, set, this.teleportAwait)); } public void a(PacketPlayInBlockDig packetplayinblockdig) { PlayerConnectionUtils.ensureMainThread(packetplayinblockdig, this, this.player.x()); if (this.player.isFrozen()) return; // CraftBukkit WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension); BlockPosition blockposition = packetplayinblockdig.a(); this.player.resetIdleTimer(); switch (packetplayinblockdig.c()) { case SWAP_HELD_ITEMS: if (!this.player.isSpectator()) { ItemStack itemstack = this.player.b(EnumHand.OFF_HAND); // CraftBukkit start PlayerSwapHandItemsEvent swapItemsEvent = new PlayerSwapHandItemsEvent(getPlayer(), CraftItemStack.asBukkitCopy(itemstack), CraftItemStack.asBukkitCopy(this.player.b(EnumHand.MAIN_HAND))); this.server.getPluginManager().callEvent(swapItemsEvent); if (swapItemsEvent.isCancelled()) { return; } itemstack = CraftItemStack.asNMSCopy(swapItemsEvent.getMainHandItem()); this.player.a(EnumHand.OFF_HAND, CraftItemStack.asNMSCopy(swapItemsEvent.getOffHandItem())); // CraftBukkit end this.player.a(EnumHand.MAIN_HAND, itemstack); } return; case DROP_ITEM: if (!this.player.isSpectator()) { // limit how quickly items can be dropped // If the ticks aren't the same then the count starts from 0 and we update the lastDropTick. if (this.lastDropTick != MinecraftServer.currentTick) { this.dropCount = 0; this.lastDropTick = MinecraftServer.currentTick; } else { // Else we increment the drop count and check the amount. this.dropCount++; if (this.dropCount >= 20) { LOGGER.warn(this.player.getName() + " dropped their items too quickly!"); this.disconnect("You dropped your items too quickly (Hacking?)"); return; } } // CraftBukkit end this.player.a(false); } return; case DROP_ALL_ITEMS: if (!this.player.isSpectator()) { this.player.a(true); } return; case RELEASE_USE_ITEM: this.player.clearActiveItem(); return; case START_DESTROY_BLOCK: case ABORT_DESTROY_BLOCK: case STOP_DESTROY_BLOCK: double d0 = this.player.locX - ((double) blockposition.getX() + 0.5D); double d1 = this.player.locY - ((double) blockposition.getY() + 0.5D) + 1.5D; double d2 = this.player.locZ - ((double) blockposition.getZ() + 0.5D); double d3 = d0 * d0 + d1 * d1 + d2 * d2; if (d3 > 36.0D) { if (worldserver.isChunkLoaded(blockposition.getX() >> 4, blockposition.getZ() >> 4, true)) // Paper - Fix block break desync - Don't send for unloaded chunks this.sendPacket(new PacketPlayOutBlockChange(worldserver, blockposition)); // Paper - Fix block break desync return; } else if (blockposition.getY() >= this.minecraftServer.getMaxBuildHeight()) { return; } else { if (packetplayinblockdig.c() == PacketPlayInBlockDig.EnumPlayerDigType.START_DESTROY_BLOCK) { if (!this.minecraftServer.a(worldserver, blockposition, this.player) && worldserver.getWorldBorder().a(blockposition)) { this.player.playerInteractManager.a(blockposition, packetplayinblockdig.b()); } else { // CraftBukkit start - fire PlayerInteractEvent CraftEventFactory.callPlayerInteractEvent(this.player, Action.LEFT_CLICK_BLOCK, blockposition, packetplayinblockdig.b(), this.player.inventory.getItemInHand(), EnumHand.MAIN_HAND); this.player.playerConnection.sendPacket(new PacketPlayOutBlockChange(worldserver, blockposition)); // Update any tile entity data for this block TileEntity tileentity = worldserver.getTileEntity(blockposition); if (tileentity != null) { this.player.playerConnection.sendPacket(tileentity.getUpdatePacket()); } // CraftBukkit end } } else { if (packetplayinblockdig.c() == PacketPlayInBlockDig.EnumPlayerDigType.STOP_DESTROY_BLOCK) { this.player.playerInteractManager.a(blockposition); } else if (packetplayinblockdig.c() == PacketPlayInBlockDig.EnumPlayerDigType.ABORT_DESTROY_BLOCK) { this.player.playerInteractManager.e(); } if (worldserver.getType(blockposition).getMaterial() != Material.AIR) { this.player.playerConnection.sendPacket(new PacketPlayOutBlockChange(worldserver, blockposition)); } } return; } default: throw new IllegalArgumentException("Invalid player action"); } // CraftBukkit end } // Spigot start - limit place/interactions private int limitedPackets; private long lastLimitedPacket = -1; private static final int THRESHOLD = com.destroystokyo.paper.PaperConfig.packetInSpamThreshold; // Paper - Configurable threshold private boolean checkLimit(long timestamp) { if (lastLimitedPacket != -1 && timestamp - lastLimitedPacket < THRESHOLD && limitedPackets++ >= 8) { // Paper - Use threshold, raise packet limit to 8 return false; } if (lastLimitedPacket == -1 || timestamp - lastLimitedPacket >= THRESHOLD) { // Paper lastLimitedPacket = timestamp; limitedPackets = 0; return true; } return true; } // Spigot end public void a(PacketPlayInUseItem packetplayinuseitem) { PlayerConnectionUtils.ensureMainThread(packetplayinuseitem, this, this.player.x()); if (this.player.isFrozen()) return; // CraftBukkit if (!checkLimit(packetplayinuseitem.timestamp)) return; // Spigot - check limit WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension); EnumHand enumhand = packetplayinuseitem.c(); ItemStack itemstack = this.player.b(enumhand); BlockPosition blockposition = packetplayinuseitem.a(); EnumDirection enumdirection = packetplayinuseitem.b(); this.player.resetIdleTimer(); if (blockposition.getY() >= this.minecraftServer.getMaxBuildHeight() - 1 && (enumdirection == EnumDirection.UP || blockposition.getY() >= this.minecraftServer.getMaxBuildHeight())) { ChatMessage chatmessage = new ChatMessage("build.tooHigh", new Object[] { Integer.valueOf(this.minecraftServer.getMaxBuildHeight())}); chatmessage.getChatModifier().setColor(EnumChatFormat.RED); this.player.playerConnection.sendPacket(new PacketPlayOutChat(chatmessage, ChatMessageType.GAME_INFO)); } else if (this.teleportPos == null && this.player.d((double) blockposition.getX() + 0.5D, (double) blockposition.getY() + 0.5D, (double) blockposition.getZ() + 0.5D) < 64.0D && !this.minecraftServer.a(worldserver, blockposition, this.player) && worldserver.getWorldBorder().a(blockposition)) { // CraftBukkit start - Check if we can actually do something over this large a distance Location eyeLoc = this.getPlayer().getEyeLocation(); double reachDistance = NumberConversions.square(eyeLoc.getX() - blockposition.getX()) + NumberConversions.square(eyeLoc.getY() - blockposition.getY()) + NumberConversions.square(eyeLoc.getZ() - blockposition.getZ()); if (reachDistance > (this.getPlayer().getGameMode() == org.bukkit.GameMode.CREATIVE ? CREATIVE_PLACE_DISTANCE_SQUARED : SURVIVAL_PLACE_DISTANCE_SQUARED)) { return; } // CraftBukkit end this.player.playerInteractManager.a(this.player, worldserver, itemstack, enumhand, blockposition, enumdirection, packetplayinuseitem.d(), packetplayinuseitem.e(), packetplayinuseitem.f()); } this.player.playerConnection.sendPacket(new PacketPlayOutBlockChange(worldserver, blockposition)); this.player.playerConnection.sendPacket(new PacketPlayOutBlockChange(worldserver, blockposition.shift(enumdirection))); } public void a(PacketPlayInBlockPlace packetplayinblockplace) { PlayerConnectionUtils.ensureMainThread(packetplayinblockplace, this, this.player.x()); if (this.player.isFrozen()) return; // CraftBukkit if (!checkLimit(packetplayinblockplace.timestamp)) return; // Spigot - check limit WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension); EnumHand enumhand = packetplayinblockplace.a(); ItemStack itemstack = this.player.b(enumhand); this.player.resetIdleTimer(); if (!itemstack.isEmpty()) { // CraftBukkit start // Raytrace to look for 'rogue armswings' float f1 = this.player.pitch; float f2 = this.player.yaw; double d0 = this.player.locX; double d1 = this.player.locY + (double) this.player.getHeadHeight(); double d2 = this.player.locZ; Vec3D vec3d = new Vec3D(d0, d1, d2); float f3 = MathHelper.cos(-f2 * 0.017453292F - 3.1415927F); float f4 = MathHelper.sin(-f2 * 0.017453292F - 3.1415927F); float f5 = -MathHelper.cos(-f1 * 0.017453292F); float f6 = MathHelper.sin(-f1 * 0.017453292F); float f7 = f4 * f5; float f8 = f3 * f5; double d3 = player.playerInteractManager.getGameMode()== EnumGamemode.CREATIVE ? 5.0D : 4.5D; Vec3D vec3d1 = vec3d.add((double) f7 * d3, (double) f6 * d3, (double) f8 * d3); MovingObjectPosition movingobjectposition = this.player.world.rayTrace(vec3d, vec3d1, false); boolean cancelled; if (movingobjectposition == null || movingobjectposition.type != MovingObjectPosition.EnumMovingObjectType.BLOCK) { org.bukkit.event.player.PlayerInteractEvent event = CraftEventFactory.callPlayerInteractEvent(this.player, Action.RIGHT_CLICK_AIR, itemstack, enumhand); cancelled = event.useItemInHand() == Event.Result.DENY; } else { if (player.playerInteractManager.firedInteract) { player.playerInteractManager.firedInteract = false; cancelled = player.playerInteractManager.interactResult; } else { org.bukkit.event.player.PlayerInteractEvent event = CraftEventFactory.callPlayerInteractEvent(player, Action.RIGHT_CLICK_BLOCK, movingobjectposition.a(), movingobjectposition.direction, itemstack, true, enumhand); cancelled = event.useItemInHand() == Event.Result.DENY; } } if (cancelled) { this.player.getBukkitEntity().updateInventory(); // SPIGOT-2524 } else { this.player.playerInteractManager.a(this.player, worldserver, itemstack, enumhand); } // CraftBukkit end } } public void a(PacketPlayInSpectate packetplayinspectate) { PlayerConnectionUtils.ensureMainThread(packetplayinspectate, this, this.player.x()); if (this.player.isSpectator()) { Entity entity = null; WorldServer[] aworldserver = this.minecraftServer.worldServer; int i = aworldserver.length; // CraftBukkit - use the worlds array list for (WorldServer worldserver : minecraftServer.worlds) { if (worldserver != null) { entity = packetplayinspectate.a(worldserver); if (entity != null) { break; } } } if (entity != null) { this.player.setSpectatorTarget(this.player); this.player.stopRiding(); /* CraftBukkit start - replace with bukkit handling for multi-world if (entity.world == this.player.world) { this.player.enderTeleportTo(entity.locX, entity.locY, entity.locZ); } else { WorldServer worldserver1 = this.player.x(); WorldServer worldserver2 = (WorldServer) entity.world; this.player.dimension = entity.dimension; this.sendPacket(new PacketPlayOutRespawn(this.player.dimension, worldserver1.getDifficulty(), worldserver1.getWorldData().getType(), this.player.playerInteractManager.getGameMode())); this.minecraftServer.getPlayerList().f(this.player); worldserver1.removeEntity(this.player); this.player.dead = false; this.player.setPositionRotation(entity.locX, entity.locY, entity.locZ, entity.yaw, entity.pitch); if (this.player.isAlive()) { worldserver1.entityJoinedWorld(this.player, false); worldserver2.addEntity(this.player); worldserver2.entityJoinedWorld(this.player, false); } this.player.spawnIn(worldserver2); this.minecraftServer.getPlayerList().a(this.player, worldserver1); this.player.enderTeleportTo(entity.locX, entity.locY, entity.locZ); this.player.playerInteractManager.a(worldserver2); this.minecraftServer.getPlayerList().b(this.player, worldserver2); this.minecraftServer.getPlayerList().updateClient(this.player); } */ this.player.getBukkitEntity().teleport(entity.getBukkitEntity(), PlayerTeleportEvent.TeleportCause.SPECTATE); // CraftBukkit end } } } // CraftBukkit start public void a(PacketPlayInResourcePackStatus packetplayinresourcepackstatus) { PlayerConnectionUtils.ensureMainThread(packetplayinresourcepackstatus, this, this.player.x()); // Paper start //this.server.getPluginManager().callEvent(new PlayerResourcePackStatusEvent(getPlayer(), PlayerResourcePackStatusEvent.Status.values()[packetplayinresourcepackstatus.status.ordinal()])); final PlayerResourcePackStatusEvent.Status status = PlayerResourcePackStatusEvent.Status.values()[packetplayinresourcepackstatus.status.ordinal()]; this.getPlayer().setResourcePackStatus(status); this.server.getPluginManager().callEvent(new PlayerResourcePackStatusEvent(getPlayer(), status)); // Paper end } // CraftBukkit end public void a(PacketPlayInBoatMove packetplayinboatmove) { PlayerConnectionUtils.ensureMainThread(packetplayinboatmove, this, this.player.x()); Entity entity = this.player.bJ(); if (entity instanceof EntityBoat) { ((EntityBoat) entity).a(packetplayinboatmove.a(), packetplayinboatmove.b()); } } public void a(IChatBaseComponent ichatbasecomponent) { // CraftBukkit start - Rarely it would send a disconnect line twice if (this.processedDisconnect) { return; } else { this.processedDisconnect = true; } // CraftBukkit end PlayerConnection.LOGGER.info("{} lost connection: {}", this.player.getName(), ichatbasecomponent.toPlainText()); // CraftBukkit start - Replace vanilla quit message handling with our own. /* this.minecraftServer.aD(); ChatMessage chatmessage = new ChatMessage("multiplayer.player.left", new Object[] { this.player.getScoreboardDisplayName()}); chatmessage.getChatModifier().setColor(EnumChatFormat.YELLOW); this.minecraftServer.getPlayerList().sendMessage(chatmessage); */ this.player.s(); String quitMessage = this.minecraftServer.getPlayerList().disconnect(this.player); if ((quitMessage != null) && (quitMessage.length() > 0)) { this.minecraftServer.getPlayerList().sendMessage(CraftChatMessage.fromString(quitMessage)); } // CraftBukkit end if (this.minecraftServer.R() && this.player.getName().equals(this.minecraftServer.Q())) { PlayerConnection.LOGGER.info("Stopping singleplayer server as player logged out"); this.minecraftServer.safeShutdown(); } } public void sendPacket(final Packet packet) { if (packet instanceof PacketPlayOutChat) { PacketPlayOutChat packetplayoutchat = (PacketPlayOutChat) packet; EntityHuman.EnumChatVisibility entityhuman_enumchatvisibility = this.player.getChatFlags(); if (entityhuman_enumchatvisibility == EntityHuman.EnumChatVisibility.HIDDEN && packetplayoutchat.c() != ChatMessageType.GAME_INFO) { return; } if (entityhuman_enumchatvisibility == EntityHuman.EnumChatVisibility.SYSTEM && !packetplayoutchat.b()) { return; } } // CraftBukkit start if (packet == null || this.processedDisconnect) { // Spigot return; } else if (packet instanceof PacketPlayOutSpawnPosition) { PacketPlayOutSpawnPosition packet6 = (PacketPlayOutSpawnPosition) packet; this.player.compassTarget = new Location(this.getPlayer().getWorld(), packet6.position.getX(), packet6.position.getY(), packet6.position.getZ()); } // CraftBukkit end try { this.networkManager.sendPacket(packet); } catch (Throwable throwable) { CrashReport crashreport = CrashReport.a(throwable, "Sending packet"); CrashReportSystemDetails crashreportsystemdetails = crashreport.a("Packet being sent"); crashreportsystemdetails.a("Packet class", new CrashReportCallable() { public String a() throws Exception { return packet.getClass().getCanonicalName(); } public Object call() throws Exception { return this.a(); } }); throw new ReportedException(crashreport); } } public void a(PacketPlayInHeldItemSlot packetplayinhelditemslot) { PlayerConnectionUtils.ensureMainThread(packetplayinhelditemslot, this, this.player.x()); if (this.player.isFrozen()) return; // CraftBukkit if (packetplayinhelditemslot.a() >= 0 && packetplayinhelditemslot.a() < PlayerInventory.getHotbarSize()) { PlayerItemHeldEvent event = new PlayerItemHeldEvent(this.getPlayer(), this.player.inventory.itemInHandIndex, packetplayinhelditemslot.a()); this.server.getPluginManager().callEvent(event); if (event.isCancelled()) { this.sendPacket(new PacketPlayOutHeldItemSlot(this.player.inventory.itemInHandIndex)); this.player.resetIdleTimer(); return; } // CraftBukkit end this.player.inventory.itemInHandIndex = packetplayinhelditemslot.a(); this.player.resetIdleTimer(); } else { PlayerConnection.LOGGER.warn("{} tried to set an invalid carried item", this.player.getName()); this.disconnect("Invalid hotbar selection (Hacking?)"); // CraftBukkit //Spigot "Nope" -> Descriptive reason } } public void a(PacketPlayInChat packetplayinchat) { // CraftBukkit start - async chat // SPIGOT-3638 if (this.minecraftServer.isStopped()) { return; } boolean isSync = packetplayinchat.a().startsWith("/"); if (packetplayinchat.a().startsWith("/")) { PlayerConnectionUtils.ensureMainThread(packetplayinchat, this, this.player.x()); } // CraftBukkit end if (this.player.dead || this.player.getChatFlags() == EntityHuman.EnumChatVisibility.HIDDEN) { // CraftBukkit - dead men tell no tales ChatMessage chatmessage = new ChatMessage("chat.cannotSend", new Object[0]); chatmessage.getChatModifier().setColor(EnumChatFormat.RED); this.sendPacket(new PacketPlayOutChat(chatmessage)); } else { this.player.resetIdleTimer(); String s = packetplayinchat.a(); s = StringUtils.normalizeSpace(s); for (int i = 0; i < s.length(); ++i) { if (!SharedConstants.isAllowedChatCharacter(s.charAt(i))) { // CraftBukkit start - threadsafety if (!isSync) { Waitable waitable = new Waitable() { @Override protected Object evaluate() { PlayerConnection.this.disconnect(new ChatMessage("multiplayer.disconnect.illegal_characters", new Object[0])); return null; } }; this.minecraftServer.processQueue.add(waitable); try { waitable.get(); } catch (InterruptedException e) { Thread.currentThread().interrupt(); } catch (ExecutionException e) { throw new RuntimeException(e); } } else { this.disconnect(new ChatMessage("multiplayer.disconnect.illegal_characters", new Object[0])); } // CraftBukkit end return; } } // CraftBukkit start if (isSync) { try { this.minecraftServer.server.playerCommandState = true; this.handleCommand(s); } finally { this.minecraftServer.server.playerCommandState = false; } } else if (s.isEmpty()) { LOGGER.warn(this.player.getName() + " tried to send an empty message"); } else if (getPlayer().isConversing()) { // Spigot start final String message = s; this.minecraftServer.processQueue.add( new Waitable() { @Override protected Object evaluate() { getPlayer().acceptConversationInput( message ); return null; } } ); // Spigot end } else if (this.player.getChatFlags() == EntityHuman.EnumChatVisibility.SYSTEM) { // Re-add "Command Only" flag check ChatMessage chatmessage = new ChatMessage("chat.cannotSend", new Object[0]); chatmessage.getChatModifier().setColor(EnumChatFormat.RED); this.sendPacket(new PacketPlayOutChat(chatmessage)); } else if (true) { this.chat(s, true); // CraftBukkit end - the below is for reference. :) } else { ChatMessage chatmessage1 = new ChatMessage("chat.type.text", new Object[] { this.player.getScoreboardDisplayName(), s}); this.minecraftServer.getPlayerList().sendMessage(chatmessage1, false); } // Spigot start - spam exclusions boolean counted = true; for ( String exclude : org.spigotmc.SpigotConfig.spamExclusions ) { if ( exclude != null && s.startsWith( exclude ) ) { counted = false; break; } } // Spigot end // CraftBukkit start - replaced with thread safe throttle // this.chatThrottle += 20; if (counted && chatSpamField.addAndGet(this, 20) > 200 && !this.minecraftServer.getPlayerList().isOp(this.player.getProfile())) { // Spigot if (!isSync) { Waitable waitable = new Waitable() { @Override protected Object evaluate() { PlayerConnection.this.disconnect(new ChatMessage("disconnect.spam", new Object[0])); return null; } }; this.minecraftServer.processQueue.add(waitable); try { waitable.get(); } catch (InterruptedException e) { Thread.currentThread().interrupt(); } catch (ExecutionException e) { throw new RuntimeException(e); } } else { this.disconnect(new ChatMessage("disconnect.spam", new Object[0])); } // CraftBukkit end } } } // CraftBukkit start - add method public void chat(String s, boolean async) { if (s.isEmpty() || this.player.getChatFlags() == EntityHuman.EnumChatVisibility.HIDDEN) { return; } if (!async && s.startsWith("/")) { // Paper Start if (!org.spigotmc.AsyncCatcher.shuttingDown && !Akari.isPrimaryThread()) { // Akarin final String fCommandLine = s; Akari.callbackQueue.add(() -> chat(fCommandLine, false)); // Akarin /* // Akarin MinecraftServer.LOGGER.log(org.apache.logging.log4j.Level.ERROR, "Command Dispatched Async: " + fCommandLine); MinecraftServer.LOGGER.log(org.apache.logging.log4j.Level.ERROR, "Please notify author of plugin causing this execution to fix this bug! see: http://bit.ly/1oSiM6C", new Throwable()); Waitable wait = new Waitable() { @Override protected Object evaluate() { chat(fCommandLine, false); return null; } }; minecraftServer.processQueue.add(wait); try { wait.get(); return; } catch (InterruptedException e) { Thread.currentThread().interrupt(); // This is proper habit for java. If we aren't handling it, pass it on! } catch (Exception e) { throw new RuntimeException("Exception processing chat command", e.getCause()); } */ // Akarin } // Paper End this.handleCommand(s); } else if (this.player.getChatFlags() == EntityHuman.EnumChatVisibility.SYSTEM) { // Do nothing, this is coming from a plugin } else { Player player = this.getPlayer(); AsyncPlayerChatEvent event = new AsyncPlayerChatEvent(async, player, s, new LazyPlayerSet(minecraftServer)); this.server.getPluginManager().callEvent(event); if (PlayerChatEvent.getHandlerList().getRegisteredListeners().length != 0) { // Evil plugins still listening to deprecated event final PlayerChatEvent queueEvent = new PlayerChatEvent(player, event.getMessage(), event.getFormat(), event.getRecipients()); queueEvent.setCancelled(event.isCancelled()); Waitable waitable = new Waitable() { @Override protected Object evaluate() { org.bukkit.Bukkit.getPluginManager().callEvent(queueEvent); if (queueEvent.isCancelled()) { return null; } String message = String.format(queueEvent.getFormat(), queueEvent.getPlayer().getDisplayName(), queueEvent.getMessage()); PlayerConnection.this.minecraftServer.console.sendMessage(message); if (((LazyPlayerSet) queueEvent.getRecipients()).isLazy()) { for (Object player : PlayerConnection.this.minecraftServer.getPlayerList().players) { ((EntityPlayer) player).sendMessage(CraftChatMessage.fromString(message)); } } else { for (Player player : queueEvent.getRecipients()) { player.sendMessage(message); } } return null; }}; if (async) { minecraftServer.processQueue.add(waitable); } else { waitable.run(); } try { waitable.get(); } catch (InterruptedException e) { Thread.currentThread().interrupt(); // This is proper habit for java. If we aren't handling it, pass it on! } catch (ExecutionException e) { throw new RuntimeException("Exception processing chat event", e.getCause()); } } else { if (event.isCancelled()) { return; } // Paper Start - (Meh) Support for vanilla world scoreboard name coloring String displayName = event.getPlayer().getDisplayName(); if (this.player.getWorld().paperConfig.useVanillaScoreboardColoring) { displayName = ScoreboardTeam.getPlayerDisplayName(this.player.getTeam(), player.getDisplayName()); } s = String.format(event.getFormat(), displayName, event.getMessage()); // Paper end minecraftServer.console.sendMessage(s); if (((LazyPlayerSet) event.getRecipients()).isLazy()) { for (Object recipient : minecraftServer.getPlayerList().players) { ((EntityPlayer) recipient).sendMessage(CraftChatMessage.fromString(s)); } } else { for (Player recipient : event.getRecipients()) { recipient.sendMessage(s); } } } } } // CraftBukkit end private void handleCommand(String s) { MinecraftTimings.playerCommandTimer.startTiming(); // Paper // CraftBukkit start - whole method if ( org.spigotmc.SpigotConfig.logCommands ) // Spigot this.LOGGER.info(this.player.getName() + " issued server command: " + s); CraftPlayer player = this.getPlayer(); PlayerCommandPreprocessEvent event = new PlayerCommandPreprocessEvent(player, s, new LazyPlayerSet(minecraftServer)); this.server.getPluginManager().callEvent(event); if (event.isCancelled()) { MinecraftTimings.playerCommandTimer.stopTiming(); // Paper return; } try { if (this.server.dispatchCommand(event.getPlayer(), event.getMessage().substring(1))) { MinecraftTimings.playerCommandTimer.stopTiming(); // Paper return; } } catch (org.bukkit.command.CommandException ex) { player.sendMessage(org.bukkit.ChatColor.RED + "An internal error occurred while attempting to perform this command"); java.util.logging.Logger.getLogger(PlayerConnection.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); MinecraftTimings.playerCommandTimer.stopTiming(); // Paper return; } MinecraftTimings.playerCommandTimer.stopTiming(); // Paper // this.minecraftServer.getCommandHandler().a(this.player, s); // CraftBukkit end } public void a(PacketPlayInArmAnimation packetplayinarmanimation) { PlayerConnectionUtils.ensureMainThread(packetplayinarmanimation, this, this.player.x()); if (this.player.isFrozen()) return; // CraftBukkit this.player.resetIdleTimer(); // CraftBukkit start - Raytrace to look for 'rogue armswings' float f1 = this.player.pitch; float f2 = this.player.yaw; double d0 = this.player.locX; double d1 = this.player.locY + (double) this.player.getHeadHeight(); double d2 = this.player.locZ; Vec3D vec3d = new Vec3D(d0, d1, d2); float f3 = MathHelper.cos(-f2 * 0.017453292F - 3.1415927F); float f4 = MathHelper.sin(-f2 * 0.017453292F - 3.1415927F); float f5 = -MathHelper.cos(-f1 * 0.017453292F); float f6 = MathHelper.sin(-f1 * 0.017453292F); float f7 = f4 * f5; float f8 = f3 * f5; double d3 = player.playerInteractManager.getGameMode()== EnumGamemode.CREATIVE ? 5.0D : 4.5D; Vec3D vec3d1 = vec3d.add((double) f7 * d3, (double) f6 * d3, (double) f8 * d3); MovingObjectPosition movingobjectposition = this.player.world.rayTrace(vec3d, vec3d1, false); if (movingobjectposition == null || movingobjectposition.type != MovingObjectPosition.EnumMovingObjectType.BLOCK) { CraftEventFactory.callPlayerInteractEvent(this.player, Action.LEFT_CLICK_AIR, this.player.inventory.getItemInHand(), EnumHand.MAIN_HAND); } // Arm swing animation PlayerAnimationEvent event = new PlayerAnimationEvent(this.getPlayer()); this.server.getPluginManager().callEvent(event); if (event.isCancelled()) return; // CraftBukkit end this.player.a(packetplayinarmanimation.a()); } public void a(PacketPlayInEntityAction packetplayinentityaction) { PlayerConnectionUtils.ensureMainThread(packetplayinentityaction, this, this.player.x()); // CraftBukkit start if (this.player.dead) return; switch (packetplayinentityaction.b()) { case START_SNEAKING: case STOP_SNEAKING: PlayerToggleSneakEvent event = new PlayerToggleSneakEvent(this.getPlayer(), packetplayinentityaction.b() == PacketPlayInEntityAction.EnumPlayerAction.START_SNEAKING); this.server.getPluginManager().callEvent(event); if (event.isCancelled()) { return; } break; case START_SPRINTING: case STOP_SPRINTING: PlayerToggleSprintEvent e2 = new PlayerToggleSprintEvent(this.getPlayer(), packetplayinentityaction.b() == PacketPlayInEntityAction.EnumPlayerAction.START_SPRINTING); this.server.getPluginManager().callEvent(e2); if (e2.isCancelled()) { return; } break; } // CraftBukkit end this.player.resetIdleTimer(); IJumpable ijumpable; switch (packetplayinentityaction.b()) { case START_SNEAKING: this.player.setSneaking(true); // Paper start - Hang on! if (this.player.world.paperConfig.parrotsHangOnBetter) { this.player.releaseShoulderEntities(); } // Paper end break; case STOP_SNEAKING: this.player.setSneaking(false); break; case START_SPRINTING: this.player.setSprinting(true); break; case STOP_SPRINTING: this.player.setSprinting(false); break; case STOP_SLEEPING: if (this.player.isSleeping()) { this.player.a(false, true, true); this.teleportPos = new Vec3D(this.player.locX, this.player.locY, this.player.locZ); } break; case START_RIDING_JUMP: if (this.player.bJ() instanceof IJumpable) { ijumpable = (IJumpable) this.player.bJ(); int i = packetplayinentityaction.c(); if (ijumpable.a() && i > 0) { ijumpable.b_(i); } } break; case STOP_RIDING_JUMP: if (this.player.bJ() instanceof IJumpable) { ijumpable = (IJumpable) this.player.bJ(); ijumpable.r_(); } break; case OPEN_INVENTORY: if (this.player.bJ() instanceof EntityHorseAbstract) { ((EntityHorseAbstract) this.player.bJ()).c((EntityHuman) this.player); } break; case START_FALL_FLYING: if (!this.player.onGround && this.player.motY < 0.0D && !this.player.cP() && !this.player.isInWater()) { ItemStack itemstack = this.player.getEquipment(EnumItemSlot.CHEST); if (itemstack.getItem() == Items.cS && ItemElytra.d(itemstack)) { this.player.N(); } } else { this.player.O(); } break; default: throw new IllegalArgumentException("Invalid client command!"); } } public void a(PacketPlayInUseEntity packetplayinuseentity) { PlayerConnectionUtils.ensureMainThread(packetplayinuseentity, this, this.player.x()); if (this.player.isFrozen()) return; // CraftBukkit WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension); Entity entity = packetplayinuseentity.a((World) worldserver); // Spigot Start if ( entity == player && !player.isSpectator() ) { disconnect( "Cannot interact with self!" ); return; } // Spigot End this.player.resetIdleTimer(); if (entity != null) { boolean flag = this.player.hasLineOfSight(entity); double d0 = 36.0D; if (!flag) { d0 = 9.0D; } if (this.player.h(entity) < d0) { EnumHand enumhand; ItemStack itemInHand = this.player.b(packetplayinuseentity.b() == null ? EnumHand.MAIN_HAND : packetplayinuseentity.b()); // CraftBukkit if (packetplayinuseentity.a() == PacketPlayInUseEntity.EnumEntityUseAction.INTERACT || packetplayinuseentity.a() == PacketPlayInUseEntity.EnumEntityUseAction.INTERACT_AT) { // CraftBukkit start boolean triggerLeashUpdate = itemInHand != null && itemInHand.getItem() == Items.LEAD && entity instanceof EntityInsentient; Item origItem = this.player.inventory.getItemInHand() == null ? null : this.player.inventory.getItemInHand().getItem(); PlayerInteractEntityEvent event; if (packetplayinuseentity.a() == PacketPlayInUseEntity.EnumEntityUseAction.INTERACT) { event = new PlayerInteractEntityEvent((Player) this.getPlayer(), entity.getBukkitEntity(), (packetplayinuseentity.b() == EnumHand.OFF_HAND) ? EquipmentSlot.OFF_HAND : EquipmentSlot.HAND); } else { Vec3D target = packetplayinuseentity.c(); event = new PlayerInteractAtEntityEvent((Player) this.getPlayer(), entity.getBukkitEntity(), new org.bukkit.util.Vector(target.x, target.y, target.z), (packetplayinuseentity.b() == EnumHand.OFF_HAND) ? EquipmentSlot.OFF_HAND : EquipmentSlot.HAND); } this.server.getPluginManager().callEvent(event); if (triggerLeashUpdate && (event.isCancelled() || this.player.inventory.getItemInHand() == null || this.player.inventory.getItemInHand().getItem() != Items.LEAD)) { // Refresh the current leash state this.sendPacket(new PacketPlayOutAttachEntity(entity, ((EntityInsentient) entity).getLeashHolder())); } if (event.isCancelled() || this.player.inventory.getItemInHand() == null || this.player.inventory.getItemInHand().getItem() != origItem) { // Refresh the current entity metadata this.sendPacket(new PacketPlayOutEntityMetadata(entity.getId(), entity.datawatcher, true)); } if (event.isCancelled()) { this.player.updateInventory(this.player.activeContainer); // Paper - Refresh player inventory return; } // CraftBukkit end } if (packetplayinuseentity.a() == PacketPlayInUseEntity.EnumEntityUseAction.INTERACT) { enumhand = packetplayinuseentity.b(); this.player.a(entity, enumhand); // CraftBukkit start if (!itemInHand.isEmpty() && itemInHand.getCount() <= -1) { this.player.updateInventory(this.player.activeContainer); } // CraftBukkit end } else if (packetplayinuseentity.a() == PacketPlayInUseEntity.EnumEntityUseAction.INTERACT_AT) { enumhand = packetplayinuseentity.b(); entity.a(this.player, packetplayinuseentity.c(), enumhand); // CraftBukkit start if (!itemInHand.isEmpty() && itemInHand.getCount() <= -1) { this.player.updateInventory(this.player.activeContainer); } // CraftBukkit end } else if (packetplayinuseentity.a() == PacketPlayInUseEntity.EnumEntityUseAction.ATTACK) { if (entity instanceof EntityItem || entity instanceof EntityExperienceOrb || entity instanceof EntityArrow || (entity == this.player && !player.isSpectator())) { // CraftBukkit this.disconnect(new ChatMessage("multiplayer.disconnect.invalid_entity_attacked", new Object[0])); this.minecraftServer.warning("Player " + this.player.getName() + " tried to attack an invalid entity"); return; } this.player.attack(entity); // CraftBukkit start if (!itemInHand.isEmpty() && itemInHand.getCount() <= -1) { this.player.updateInventory(this.player.activeContainer); } // CraftBukkit end } } } // Paper start - fire event else { this.server.getPluginManager().callEvent(new com.destroystokyo.paper.event.player.PlayerUseUnknownEntityEvent( this.getPlayer(), packetplayinuseentity.getEntityId(), packetplayinuseentity.a() == PacketPlayInUseEntity.EnumEntityUseAction.ATTACK, packetplayinuseentity.b() == EnumHand.MAIN_HAND ? EquipmentSlot.HAND : EquipmentSlot.OFF_HAND )); } // Paper end } public void a(PacketPlayInClientCommand packetplayinclientcommand) { PlayerConnectionUtils.ensureMainThread(packetplayinclientcommand, this, this.player.x()); this.player.resetIdleTimer(); PacketPlayInClientCommand.EnumClientCommand packetplayinclientcommand_enumclientcommand = packetplayinclientcommand.a(); switch (packetplayinclientcommand_enumclientcommand) { case PERFORM_RESPAWN: if (this.player.viewingCredits) { this.player.viewingCredits = false; // this.player = this.minecraftServer.getPlayerList().moveToWorld(this.player, 0, true); this.minecraftServer.getPlayerList().changeDimension(this.player, 0, PlayerTeleportEvent.TeleportCause.END_PORTAL); // CraftBukkit - reroute logic through custom portal management CriterionTriggers.u.a(this.player, DimensionManager.THE_END, DimensionManager.OVERWORLD); } else { if (this.player.getHealth() > 0.0F) { return; } this.player = this.minecraftServer.getPlayerList().moveToWorld(this.player, 0, false); if (this.minecraftServer.isHardcore()) { this.player.a(EnumGamemode.SPECTATOR); this.player.x().getGameRules().set("spectatorsGenerateChunks", "false"); } } break; case REQUEST_STATS: this.player.getStatisticManager().a(this.player); } } public void a(PacketPlayInCloseWindow packetplayinclosewindow) { PlayerConnectionUtils.ensureMainThread(packetplayinclosewindow, this, this.player.x()); if (this.player.isFrozen()) return; // CraftBukkit CraftEventFactory.handleInventoryCloseEvent(this.player, org.bukkit.event.inventory.InventoryCloseEvent.Reason.PLAYER); // CraftBukkit // Paper this.player.r(); } public void a(PacketPlayInWindowClick packetplayinwindowclick) { PlayerConnectionUtils.ensureMainThread(packetplayinwindowclick, this, this.player.x()); if (this.player.isFrozen()) return; // CraftBukkit this.player.resetIdleTimer(); if (this.player.activeContainer.windowId == packetplayinwindowclick.a() && this.player.activeContainer.c(this.player) && this.player.activeContainer.canUse(this.player)) { // CraftBukkit boolean cancelled = this.player.isSpectator(); // CraftBukkit - see below if if (false/*this.player.isSpectator()*/) { // CraftBukkit NonNullList nonnulllist = NonNullList.a(); for (int i = 0; i < this.player.activeContainer.slots.size(); ++i) { nonnulllist.add(((Slot) this.player.activeContainer.slots.get(i)).getItem()); } this.player.a(this.player.activeContainer, nonnulllist); } else { // CraftBukkit start - Call InventoryClickEvent if (packetplayinwindowclick.b() < -1 && packetplayinwindowclick.b() != -999) { return; } InventoryView inventory = this.player.activeContainer.getBukkitView(); SlotType type = CraftInventoryView.getSlotType(inventory, packetplayinwindowclick.b()); InventoryClickEvent event; ClickType click = ClickType.UNKNOWN; InventoryAction action = InventoryAction.UNKNOWN; ItemStack itemstack = ItemStack.a; switch (packetplayinwindowclick.f()) { case PICKUP: if (packetplayinwindowclick.c() == 0) { click = ClickType.LEFT; } else if (packetplayinwindowclick.c() == 1) { click = ClickType.RIGHT; } if (packetplayinwindowclick.c() == 0 || packetplayinwindowclick.c() == 1) { action = InventoryAction.NOTHING; // Don't want to repeat ourselves if (packetplayinwindowclick.b() == -999) { if (!player.inventory.getCarried().isEmpty()) { action = packetplayinwindowclick.c() == 0 ? InventoryAction.DROP_ALL_CURSOR : InventoryAction.DROP_ONE_CURSOR; } } else if (packetplayinwindowclick.b() < 0) { action = InventoryAction.NOTHING; } else { Slot slot = this.player.activeContainer.getSlot(packetplayinwindowclick.b()); if (slot != null) { ItemStack clickedItem = slot.getItem(); ItemStack cursor = player.inventory.getCarried(); if (clickedItem.isEmpty()) { if (!cursor.isEmpty()) { action = packetplayinwindowclick.c() == 0 ? InventoryAction.PLACE_ALL : InventoryAction.PLACE_ONE; } } else if (slot.isAllowed(player)) { if (cursor.isEmpty()) { action = packetplayinwindowclick.c() == 0 ? InventoryAction.PICKUP_ALL : InventoryAction.PICKUP_HALF; } else if (slot.isAllowed(cursor)) { if (clickedItem.doMaterialsMatch(cursor) && ItemStack.equals(clickedItem, cursor)) { int toPlace = packetplayinwindowclick.c() == 0 ? cursor.getCount() : 1; toPlace = Math.min(toPlace, clickedItem.getMaxStackSize() - clickedItem.getCount()); toPlace = Math.min(toPlace, slot.inventory.getMaxStackSize() - clickedItem.getCount()); if (toPlace == 1) { action = InventoryAction.PLACE_ONE; } else if (toPlace == cursor.getCount()) { action = InventoryAction.PLACE_ALL; } else if (toPlace < 0) { action = toPlace != -1 ? InventoryAction.PICKUP_SOME : InventoryAction.PICKUP_ONE; // this happens with oversized stacks } else if (toPlace != 0) { action = InventoryAction.PLACE_SOME; } } else if (cursor.getCount() <= slot.getMaxStackSize()) { action = InventoryAction.SWAP_WITH_CURSOR; } } else if (cursor.getItem() == clickedItem.getItem() && (!cursor.usesData() || cursor.getData() == clickedItem.getData()) && ItemStack.equals(cursor, clickedItem)) { if (clickedItem.getCount() >= 0) { if (clickedItem.getCount() + cursor.getCount() <= cursor.getMaxStackSize()) { // As of 1.5, this is result slots only action = InventoryAction.PICKUP_ALL; } } } } } } } break; // TODO check on updates case QUICK_MOVE: if (packetplayinwindowclick.c() == 0) { click = ClickType.SHIFT_LEFT; } else if (packetplayinwindowclick.c() == 1) { click = ClickType.SHIFT_RIGHT; } if (packetplayinwindowclick.c() == 0 || packetplayinwindowclick.c() == 1) { if (packetplayinwindowclick.b() < 0) { action = InventoryAction.NOTHING; } else { Slot slot = this.player.activeContainer.getSlot(packetplayinwindowclick.b()); if (slot != null && slot.isAllowed(this.player) && slot.hasItem()) { action = InventoryAction.MOVE_TO_OTHER_INVENTORY; } else { action = InventoryAction.NOTHING; } } } break; case SWAP: if (packetplayinwindowclick.c() >= 0 && packetplayinwindowclick.c() < 9) { click = ClickType.NUMBER_KEY; Slot clickedSlot = this.player.activeContainer.getSlot(packetplayinwindowclick.b()); if (clickedSlot.isAllowed(player)) { ItemStack hotbar = this.player.inventory.getItem(packetplayinwindowclick.c()); boolean canCleanSwap = hotbar.isEmpty() || (clickedSlot.inventory == player.inventory && clickedSlot.isAllowed(hotbar)); // the slot will accept the hotbar item if (clickedSlot.hasItem()) { if (canCleanSwap) { action = InventoryAction.HOTBAR_SWAP; } else { action = InventoryAction.HOTBAR_MOVE_AND_READD; } } else if (!clickedSlot.hasItem() && !hotbar.isEmpty() && clickedSlot.isAllowed(hotbar)) { action = InventoryAction.HOTBAR_SWAP; } else { action = InventoryAction.NOTHING; } } else { action = InventoryAction.NOTHING; } } break; case CLONE: if (packetplayinwindowclick.c() == 2) { click = ClickType.MIDDLE; if (packetplayinwindowclick.b() < 0) { // Paper - GH-404 action = InventoryAction.NOTHING; } else { Slot slot = this.player.activeContainer.getSlot(packetplayinwindowclick.b()); if (slot != null && slot.hasItem() && player.abilities.canInstantlyBuild && player.inventory.getCarried().isEmpty()) { action = InventoryAction.CLONE_STACK; } else { action = InventoryAction.NOTHING; } } } else { click = ClickType.UNKNOWN; action = InventoryAction.UNKNOWN; } break; case THROW: if (packetplayinwindowclick.b() >= 0) { if (packetplayinwindowclick.c() == 0) { click = ClickType.DROP; Slot slot = this.player.activeContainer.getSlot(packetplayinwindowclick.b()); if (slot != null && slot.hasItem() && slot.isAllowed(player) && !slot.getItem().isEmpty() && slot.getItem().getItem() != Item.getItemOf(Blocks.AIR)) { action = InventoryAction.DROP_ONE_SLOT; } else { action = InventoryAction.NOTHING; } } else if (packetplayinwindowclick.c() == 1) { click = ClickType.CONTROL_DROP; Slot slot = this.player.activeContainer.getSlot(packetplayinwindowclick.b()); if (slot != null && slot.hasItem() && slot.isAllowed(player) && !slot.getItem().isEmpty() && slot.getItem().getItem() != Item.getItemOf(Blocks.AIR)) { action = InventoryAction.DROP_ALL_SLOT; } else { action = InventoryAction.NOTHING; } } } else { // Sane default (because this happens when they are holding nothing. Don't ask why.) click = ClickType.LEFT; if (packetplayinwindowclick.c() == 1) { click = ClickType.RIGHT; } action = InventoryAction.NOTHING; } break; case QUICK_CRAFT: itemstack = this.player.activeContainer.a(packetplayinwindowclick.b(), packetplayinwindowclick.c(), packetplayinwindowclick.f(), this.player); break; case PICKUP_ALL: click = ClickType.DOUBLE_CLICK; action = InventoryAction.NOTHING; if (packetplayinwindowclick.b() >= 0 && !this.player.inventory.getCarried().isEmpty()) { ItemStack cursor = this.player.inventory.getCarried(); action = InventoryAction.NOTHING; // Quick check for if we have any of the item if (inventory.getTopInventory().contains(org.bukkit.Material.getMaterial(Item.getId(cursor.getItem()))) || inventory.getBottomInventory().contains(org.bukkit.Material.getMaterial(Item.getId(cursor.getItem())))) { action = InventoryAction.COLLECT_TO_CURSOR; } } break; default: break; } if (packetplayinwindowclick.f() != InventoryClickType.QUICK_CRAFT) { if (click == ClickType.NUMBER_KEY) { event = new InventoryClickEvent(inventory, type, packetplayinwindowclick.b(), click, action, packetplayinwindowclick.c()); } else { event = new InventoryClickEvent(inventory, type, packetplayinwindowclick.b(), click, action); } org.bukkit.inventory.Inventory top = inventory.getTopInventory(); if (packetplayinwindowclick.b() == 0 && top instanceof CraftingInventory) { org.bukkit.inventory.Recipe recipe = ((CraftingInventory) top).getRecipe(); if (recipe != null) { if (click == ClickType.NUMBER_KEY) { event = new CraftItemEvent(recipe, inventory, type, packetplayinwindowclick.b(), click, action, packetplayinwindowclick.c()); } else { event = new CraftItemEvent(recipe, inventory, type, packetplayinwindowclick.b(), click, action); } } } event.setCancelled(cancelled); Container oldContainer = this.player.activeContainer; // SPIGOT-1224 server.getPluginManager().callEvent(event); if (this.player.activeContainer != oldContainer) { return; } switch (event.getResult()) { case ALLOW: case DEFAULT: itemstack = this.player.activeContainer.a(packetplayinwindowclick.b(), packetplayinwindowclick.c(), packetplayinwindowclick.f(), this.player); break; case DENY: /* Needs enum constructor in InventoryAction if (action.modifiesOtherSlots()) { } else { if (action.modifiesCursor()) { this.player.playerConnection.sendPacket(new Packet103SetSlot(-1, -1, this.player.inventory.getCarried())); } if (action.modifiesClicked()) { this.player.playerConnection.sendPacket(new Packet103SetSlot(this.player.activeContainer.windowId, packet102windowclick.slot, this.player.activeContainer.getSlot(packet102windowclick.slot).getItem())); } }*/ switch (action) { // Modified other slots case PICKUP_ALL: case MOVE_TO_OTHER_INVENTORY: case HOTBAR_MOVE_AND_READD: case HOTBAR_SWAP: case COLLECT_TO_CURSOR: case UNKNOWN: this.player.updateInventory(this.player.activeContainer); break; // Modified cursor and clicked case PICKUP_SOME: case PICKUP_HALF: case PICKUP_ONE: case PLACE_ALL: case PLACE_SOME: case PLACE_ONE: case SWAP_WITH_CURSOR: this.player.playerConnection.sendPacket(new PacketPlayOutSetSlot(-1, -1, this.player.inventory.getCarried())); this.player.playerConnection.sendPacket(new PacketPlayOutSetSlot(this.player.activeContainer.windowId, packetplayinwindowclick.b(), this.player.activeContainer.getSlot(packetplayinwindowclick.b()).getItem())); break; // Modified clicked only case DROP_ALL_SLOT: case DROP_ONE_SLOT: this.player.playerConnection.sendPacket(new PacketPlayOutSetSlot(this.player.activeContainer.windowId, packetplayinwindowclick.b(), this.player.activeContainer.getSlot(packetplayinwindowclick.b()).getItem())); break; // Modified cursor only case DROP_ALL_CURSOR: case DROP_ONE_CURSOR: case CLONE_STACK: this.player.playerConnection.sendPacket(new PacketPlayOutSetSlot(-1, -1, this.player.inventory.getCarried())); break; // Nothing case NOTHING: break; } return; } if (event instanceof CraftItemEvent) { // Need to update the inventory on crafting to // correctly support custom recipes player.updateInventory(player.activeContainer); } } // CraftBukkit end if (ItemStack.matches(packetplayinwindowclick.e(), itemstack)) { this.player.playerConnection.sendPacket(new PacketPlayOutTransaction(packetplayinwindowclick.a(), packetplayinwindowclick.d(), true)); this.player.f = true; this.player.activeContainer.b(); this.player.broadcastCarriedItem(); this.player.f = false; } else { this.k.a(this.player.activeContainer.windowId, Short.valueOf(packetplayinwindowclick.d())); this.player.playerConnection.sendPacket(new PacketPlayOutTransaction(packetplayinwindowclick.a(), packetplayinwindowclick.d(), false)); this.player.activeContainer.a(this.player, false); NonNullList nonnulllist1 = NonNullList.a(); for (int j = 0; j < this.player.activeContainer.slots.size(); ++j) { ItemStack itemstack1 = ((Slot) this.player.activeContainer.slots.get(j)).getItem(); ItemStack itemstack2 = itemstack1.isEmpty() ? ItemStack.a : itemstack1; nonnulllist1.add(itemstack2); } this.player.a(this.player.activeContainer, nonnulllist1); } } } } public void a(PacketPlayInAutoRecipe packetplayinautorecipe) { PlayerConnectionUtils.ensureMainThread(packetplayinautorecipe, this, this.player.x()); this.player.resetIdleTimer(); if (!this.player.isSpectator() && this.player.activeContainer.windowId == packetplayinautorecipe.a() && this.player.activeContainer.c(this.player)) { this.H.a(this.player, packetplayinautorecipe.b(), packetplayinautorecipe.c()); } } public void a(PacketPlayInEnchantItem packetplayinenchantitem) { PlayerConnectionUtils.ensureMainThread(packetplayinenchantitem, this, this.player.x()); if (this.player.isFrozen()) return; // CraftBukkit this.player.resetIdleTimer(); if (this.player.activeContainer.windowId == packetplayinenchantitem.a() && this.player.activeContainer.c(this.player) && !this.player.isSpectator()) { this.player.activeContainer.a(this.player, packetplayinenchantitem.b()); this.player.activeContainer.b(); } } public void a(PacketPlayInSetCreativeSlot packetplayinsetcreativeslot) { PlayerConnectionUtils.ensureMainThread(packetplayinsetcreativeslot, this, this.player.x()); if (this.player.playerInteractManager.isCreative()) { boolean flag = packetplayinsetcreativeslot.a() < 0; ItemStack itemstack = packetplayinsetcreativeslot.getItemStack(); if (!itemstack.isEmpty() && itemstack.hasTag() && itemstack.getTag().hasKeyOfType("BlockEntityTag", 10)) { NBTTagCompound nbttagcompound = itemstack.getTag().getCompound("BlockEntityTag"); if (nbttagcompound.hasKey("x") && nbttagcompound.hasKey("y") && nbttagcompound.hasKey("z")) { BlockPosition blockposition = new BlockPosition(nbttagcompound.getInt("x"), nbttagcompound.getInt("y"), nbttagcompound.getInt("z")); TileEntity tileentity = this.player.world.getTileEntity(blockposition); if (tileentity != null) { NBTTagCompound nbttagcompound1 = tileentity.save(new NBTTagCompound()); nbttagcompound1.remove("x"); nbttagcompound1.remove("y"); nbttagcompound1.remove("z"); itemstack.a("BlockEntityTag", (NBTBase) nbttagcompound1); } } } boolean flag1 = packetplayinsetcreativeslot.a() >= 1 && packetplayinsetcreativeslot.a() <= 45; // CraftBukkit - Add invalidItems check boolean flag2 = itemstack.isEmpty() || itemstack.getData() >= 0 && itemstack.getCount() <= 64 && !itemstack.isEmpty() && (!invalidItems.contains(Item.getId(itemstack.getItem())) || !org.spigotmc.SpigotConfig.filterCreativeItems); // Spigot if (flag || (flag1 && !ItemStack.matches(this.player.defaultContainer.getSlot(packetplayinsetcreativeslot.a()).getItem(), packetplayinsetcreativeslot.getItemStack()))) { // Insist on valid slot // CraftBukkit start - Call click event InventoryView inventory = this.player.defaultContainer.getBukkitView(); org.bukkit.inventory.ItemStack item = CraftItemStack.asBukkitCopy(packetplayinsetcreativeslot.getItemStack()); SlotType type = SlotType.QUICKBAR; if (flag) { type = SlotType.OUTSIDE; } else if (packetplayinsetcreativeslot.a() < 36) { if (packetplayinsetcreativeslot.a() >= 5 && packetplayinsetcreativeslot.a() < 9) { type = SlotType.ARMOR; } else { type = SlotType.CONTAINER; } } InventoryCreativeEvent event = new InventoryCreativeEvent(inventory, type, flag ? -999 : packetplayinsetcreativeslot.a(), item); server.getPluginManager().callEvent(event); itemstack = CraftItemStack.asNMSCopy(event.getCursor()); switch (event.getResult()) { case ALLOW: // Plugin cleared the id / stacksize checks flag2 = true; break; case DEFAULT: break; case DENY: // Reset the slot if (packetplayinsetcreativeslot.a() >= 0) { this.player.playerConnection.sendPacket(new PacketPlayOutSetSlot(this.player.defaultContainer.windowId, packetplayinsetcreativeslot.a(), this.player.defaultContainer.getSlot(packetplayinsetcreativeslot.a()).getItem())); this.player.playerConnection.sendPacket(new PacketPlayOutSetSlot(-1, -1, ItemStack.a)); } return; } } // CraftBukkit end if (flag1 && flag2) { if (itemstack.isEmpty()) { this.player.defaultContainer.setItem(packetplayinsetcreativeslot.a(), ItemStack.a); } else { this.player.defaultContainer.setItem(packetplayinsetcreativeslot.a(), itemstack); } this.player.defaultContainer.a(this.player, true); } else if (flag && flag2 && this.j < 200) { this.j += 20; EntityItem entityitem = this.player.drop(itemstack, true); if (entityitem != null) { entityitem.j(); } } } } public void a(PacketPlayInTransaction packetplayintransaction) { PlayerConnectionUtils.ensureMainThread(packetplayintransaction, this, this.player.x()); if (this.player.isFrozen()) return; // CraftBukkit Short oshort = (Short) this.k.get(this.player.activeContainer.windowId); if (oshort != null && packetplayintransaction.b() == oshort.shortValue() && this.player.activeContainer.windowId == packetplayintransaction.a() && !this.player.activeContainer.c(this.player) && !this.player.isSpectator()) { this.player.activeContainer.a(this.player, true); } } public void a(PacketPlayInUpdateSign packetplayinupdatesign) { PlayerConnectionUtils.ensureMainThread(packetplayinupdatesign, this, this.player.x()); if (this.player.isFrozen()) return; // CraftBukkit this.player.resetIdleTimer(); WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension); BlockPosition blockposition = packetplayinupdatesign.a(); if (worldserver.isLoaded(blockposition)) { IBlockData iblockdata = worldserver.getType(blockposition); TileEntity tileentity = worldserver.getTileEntity(blockposition); if (!(tileentity instanceof TileEntitySign)) { return; } TileEntitySign tileentitysign = (TileEntitySign) tileentity; if (!tileentitysign.a() || tileentitysign.e() != this.player) { this.minecraftServer.warning("Player " + this.player.getName() + " just tried to change non-editable sign"); this.sendPacket(tileentity.getUpdatePacket()); // CraftBukkit return; } String[] astring = packetplayinupdatesign.b(); // CraftBukkit start Player player = this.server.getPlayer(this.player); int x = packetplayinupdatesign.a().getX(); int y = packetplayinupdatesign.a().getY(); int z = packetplayinupdatesign.a().getZ(); String[] lines = new String[4]; for (int i = 0; i < astring.length; ++i) { lines[i] = SharedConstants.a(astring[i]); //Paper - Replaced with anvil color stripping method to stop exploits that allow colored signs to be created. } SignChangeEvent event = new SignChangeEvent((org.bukkit.craftbukkit.block.CraftBlock) player.getWorld().getBlockAt(x, y, z), this.server.getPlayer(this.player), lines); this.server.getPluginManager().callEvent(event); if (!event.isCancelled()) { System.arraycopy(org.bukkit.craftbukkit.block.CraftSign.sanitizeLines(event.getLines()), 0, tileentitysign.lines, 0, 4); tileentitysign.isEditable = false; } // CraftBukkit end tileentitysign.update(); worldserver.notify(blockposition, iblockdata, iblockdata, 3); } } public void a(PacketPlayInKeepAlive packetplayinkeepalive) { //PlayerConnectionUtils.ensureMainThread(packetplayinkeepalive, this, this.player.x()); // CraftBukkit // Paper - This shouldn't be on the main thread if (this.g && packetplayinkeepalive.a() == this.h) { int i = (int) (this.d() - this.f); this.player.ping = (this.player.ping * 3 + i) / 4; this.g = false; } else if (!this.player.getName().equals(this.minecraftServer.Q())) { // Paper start - This needs to be handled on the main thread for plugins PlayerConnection.LOGGER.warn("{} sent an invalid keepalive! pending keepalive: {} got id: {} expected id: {}", this.player.getName(), this.isPendingPing(), packetplayinkeepalive.a(), this.getKeepAliveID()); minecraftServer.postToMainThread(() -> { this.disconnect(new ChatMessage("disconnect.timeout", new Object[0])); }); // Paper end } } private long getCurrentMillis() { return d(); } // Paper - OBFHELPER private long d() { return System.nanoTime() / 1000000L; } public void a(PacketPlayInAbilities packetplayinabilities) { PlayerConnectionUtils.ensureMainThread(packetplayinabilities, this, this.player.x()); // CraftBukkit start if (this.player.abilities.canFly && this.player.abilities.isFlying != packetplayinabilities.isFlying()) { PlayerToggleFlightEvent event = new PlayerToggleFlightEvent(this.server.getPlayer(this.player), packetplayinabilities.isFlying()); this.server.getPluginManager().callEvent(event); if (!event.isCancelled()) { this.player.abilities.isFlying = packetplayinabilities.isFlying(); // Actually set the player's flying status } else { this.player.updateAbilities(); // Tell the player their ability was reverted } } // CraftBukkit end } // Paper start - async tab completion public void a(PacketPlayInTabComplete packet) { // CraftBukkit start if (tabSpamLimiter.addAndGet(com.destroystokyo.paper.PaperConfig.tabSpamIncrement) > com.destroystokyo.paper.PaperConfig.tabSpamLimit && !this.minecraftServer.getPlayerList().isOp(this.player.getProfile())) { // Paper start - split and make configurable minecraftServer.postToMainThread(() -> this.disconnect(new ChatMessage("disconnect.spam", new Object[0]))); return; } // CraftBukkit end com.destroystokyo.paper.event.server.AsyncTabCompleteEvent event; java.util.List completions = new ArrayList<>(); BlockPosition blockpos = packet.b(); String buffer = packet.a(); boolean isCommand = buffer.startsWith("/") || packet.c(); event = new com.destroystokyo.paper.event.server.AsyncTabCompleteEvent(this.getPlayer(), completions, buffer, isCommand, blockpos != null ? MCUtil.toLocation(player.world, blockpos) : null); event.callEvent(); completions = event.isCancelled() ? com.google.common.collect.ImmutableList.of() : event.getCompletions(); if (!event.isHandled()) { // If the event isn't handled, we can assume that we have no completions, and so we'll ask the server Waitable> syncCompletions = new Waitable>() { @Override protected java.util.List evaluate() { return minecraftServer.tabCompleteCommand(player, buffer, blockpos, isCommand); } }; server.getServer().processQueue.add(syncCompletions); try { completions = syncCompletions.get(); } catch (InterruptedException | ExecutionException e1) { e1.printStackTrace(); } this.player.playerConnection.sendPacket(new PacketPlayOutTabComplete(completions.toArray(new String[completions.size()]))); } else if (!event.isCancelled()) { this.player.playerConnection.sendPacket(new PacketPlayOutTabComplete(completions.toArray(new String[completions.size()]))); } // Paper end } public void a(PacketPlayInSettings packetplayinsettings) { PlayerConnectionUtils.ensureMainThread(packetplayinsettings, this, this.player.x()); this.player.a(packetplayinsettings); } public void a(PacketPlayInCustomPayload packetplayincustompayload) { PlayerConnectionUtils.ensureMainThread(packetplayincustompayload, this, this.player.x()); String s = packetplayincustompayload.a(); PacketDataSerializer packetdataserializer; ItemStack itemstack; ItemStack itemstack1; if ("MC|BEdit".equals(s)) { // CraftBukkit start if (this.lastBookTick + 20 > MinecraftServer.currentTick) { this.disconnect("Book edited too quickly!"); return; } this.lastBookTick = MinecraftServer.currentTick; // CraftBukkit end packetdataserializer = packetplayincustompayload.b(); try { itemstack = packetdataserializer.k(); if (itemstack.isEmpty()) { return; } if (!ItemBookAndQuill.b(itemstack.getTag())) { throw new IOException("Invalid book tag!"); } itemstack1 = this.player.getItemInMainHand(); if (itemstack1.isEmpty()) { return; } if (itemstack.getItem() == Items.WRITABLE_BOOK && itemstack.getItem() == itemstack1.getItem()) { itemstack1.a("pages", (NBTBase) itemstack.getTag().getList("pages", 8)); CraftEventFactory.handleEditBookEvent(player, itemstack1); // CraftBukkit } } catch (Exception exception) { IllegalPacketEvent.process(player.getBukkitEntity(), "InvalidBookEdit", "Invalid book data!", exception); // Paper } } else { String s1; if ("MC|BSign".equals(s)) { // CraftBukkit start if (this.lastBookTick + 20 > MinecraftServer.currentTick) { this.disconnect("Book edited too quickly!"); return; } this.lastBookTick = MinecraftServer.currentTick; // CraftBukkit end packetdataserializer = packetplayincustompayload.b(); try { itemstack = packetdataserializer.k(); if (itemstack.isEmpty()) { return; } if (!ItemWrittenBook.b(itemstack.getTag())) { throw new IOException("Invalid book tag!"); } itemstack1 = this.player.getItemInMainHand(); if (itemstack1.isEmpty()) { return; } if (itemstack.getItem() == Items.WRITABLE_BOOK && itemstack1.getItem() == Items.WRITABLE_BOOK) { ItemStack itemstack2 = new ItemStack(Items.WRITTEN_BOOK); itemstack2.a("author", (NBTBase) (new NBTTagString(this.player.getName()))); itemstack2.a("title", (NBTBase) (new NBTTagString(itemstack.getTag().getString("title")))); NBTTagList nbttaglist = itemstack.getTag().getList("pages", 8); for (int i = 0; i < nbttaglist.size(); ++i) { s1 = nbttaglist.getString(i); ChatComponentText chatcomponenttext = new ChatComponentText(s1); s1 = IChatBaseComponent.ChatSerializer.a((IChatBaseComponent) chatcomponenttext); nbttaglist.a(i, new NBTTagString(s1)); } itemstack2.a("pages", (NBTBase) nbttaglist); CraftEventFactory.handleEditBookEvent(player, itemstack2); // CraftBukkit } } catch (Exception exception1) { IllegalPacketEvent.process(player.getBukkitEntity(), "InvalidBookSign", "Invalid book data!", exception1); // Paper } } else if ("MC|TrSel".equals(s)) { try { int j = packetplayincustompayload.b().readInt(); Container container = this.player.activeContainer; if (container instanceof ContainerMerchant) { ((ContainerMerchant) container).d(j); } } catch (Exception exception2) { IllegalPacketEvent.process(player.getBukkitEntity(), "InvalidTrade", "Invalid trade data!", exception2); // Paper } } else { TileEntity tileentity; if ("MC|AdvCmd".equals(s)) { if (!this.minecraftServer.getEnableCommandBlock()) { this.player.sendMessage(new ChatMessage("advMode.notEnabled", new Object[0])); return; } if (!this.player.isCreativeAndOp()) { this.player.sendMessage(new ChatMessage("advMode.notAllowed", new Object[0])); return; } packetdataserializer = packetplayincustompayload.b(); try { byte b0 = packetdataserializer.readByte(); CommandBlockListenerAbstract commandblocklistenerabstract = null; if (b0 == 0) { tileentity = this.player.world.getTileEntity(new BlockPosition(packetdataserializer.readInt(), packetdataserializer.readInt(), packetdataserializer.readInt())); if (tileentity instanceof TileEntityCommand) { commandblocklistenerabstract = ((TileEntityCommand) tileentity).getCommandBlock(); } } else if (b0 == 1) { Entity entity = this.player.world.getEntity(packetdataserializer.readInt()); if (entity instanceof EntityMinecartCommandBlock) { commandblocklistenerabstract = ((EntityMinecartCommandBlock) entity).getCommandBlock(); } } String s2 = packetdataserializer.e(packetdataserializer.readableBytes()); boolean flag = packetdataserializer.readBoolean(); if (commandblocklistenerabstract != null) { commandblocklistenerabstract.setCommand(s2); commandblocklistenerabstract.a(flag); if (!flag) { commandblocklistenerabstract.b((IChatBaseComponent) null); } commandblocklistenerabstract.i(); this.player.sendMessage(new ChatMessage("advMode.setCommand.success", new Object[] { s2})); } } catch (Exception exception3) { PlayerConnection.LOGGER.error("Couldn\'t set command block", exception3); this.disconnect("Invalid command data!"); // CraftBukkit } } else if ("MC|AutoCmd".equals(s)) { if (!this.minecraftServer.getEnableCommandBlock()) { this.player.sendMessage(new ChatMessage("advMode.notEnabled", new Object[0])); return; } if (!this.player.isCreativeAndOp()) { this.player.sendMessage(new ChatMessage("advMode.notAllowed", new Object[0])); return; } packetdataserializer = packetplayincustompayload.b(); try { CommandBlockListenerAbstract commandblocklistenerabstract1 = null; TileEntityCommand tileentitycommand = null; BlockPosition blockposition = new BlockPosition(packetdataserializer.readInt(), packetdataserializer.readInt(), packetdataserializer.readInt()); TileEntity tileentity1 = this.player.world.getTileEntity(blockposition); if (tileentity1 instanceof TileEntityCommand) { tileentitycommand = (TileEntityCommand) tileentity1; commandblocklistenerabstract1 = tileentitycommand.getCommandBlock(); } String s3 = packetdataserializer.e(packetdataserializer.readableBytes()); boolean flag1 = packetdataserializer.readBoolean(); TileEntityCommand.Type tileentitycommand_type = TileEntityCommand.Type.valueOf(packetdataserializer.e(16)); boolean flag2 = packetdataserializer.readBoolean(); boolean flag3 = packetdataserializer.readBoolean(); if (commandblocklistenerabstract1 != null) { EnumDirection enumdirection = (EnumDirection) this.player.world.getType(blockposition).get(BlockCommand.a); IBlockData iblockdata; switch (tileentitycommand_type) { case SEQUENCE: iblockdata = Blocks.dd.getBlockData(); this.player.world.setTypeAndData(blockposition, iblockdata.set(BlockCommand.a, enumdirection).set(BlockCommand.b, Boolean.valueOf(flag2)), 2); break; case AUTO: iblockdata = Blocks.dc.getBlockData(); this.player.world.setTypeAndData(blockposition, iblockdata.set(BlockCommand.a, enumdirection).set(BlockCommand.b, Boolean.valueOf(flag2)), 2); break; case REDSTONE: iblockdata = Blocks.COMMAND_BLOCK.getBlockData(); this.player.world.setTypeAndData(blockposition, iblockdata.set(BlockCommand.a, enumdirection).set(BlockCommand.b, Boolean.valueOf(flag2)), 2); } tileentity1.A(); this.player.world.setTileEntity(blockposition, tileentity1); commandblocklistenerabstract1.setCommand(s3); commandblocklistenerabstract1.a(flag1); if (!flag1) { commandblocklistenerabstract1.b((IChatBaseComponent) null); } tileentitycommand.b(flag3); commandblocklistenerabstract1.i(); if (!UtilColor.b(s3)) { this.player.sendMessage(new ChatMessage("advMode.setCommand.success", new Object[] { s3})); } } } catch (Exception exception4) { PlayerConnection.LOGGER.error("Couldn\'t set command block", exception4); this.disconnect("Invalid command data!"); // CraftBukkit } } else { int k; if ("MC|Beacon".equals(s)) { if (this.player.activeContainer instanceof ContainerBeacon) { try { packetdataserializer = packetplayincustompayload.b(); k = packetdataserializer.readInt(); int l = packetdataserializer.readInt(); ContainerBeacon containerbeacon = (ContainerBeacon) this.player.activeContainer; Slot slot = containerbeacon.getSlot(0); if (slot.hasItem()) { slot.a(1); IInventory iinventory = containerbeacon.e(); iinventory.setProperty(1, k); iinventory.setProperty(2, l); iinventory.update(); } } catch (Exception exception5) { IllegalPacketEvent.process(player.getBukkitEntity(), "InvalidBeacon", "Invalid beacon data!", exception5); // Paper } } } else if ("MC|ItemName".equals(s)) { if (this.player.activeContainer instanceof ContainerAnvil) { ContainerAnvil containeranvil = (ContainerAnvil) this.player.activeContainer; if (packetplayincustompayload.b() != null && packetplayincustompayload.b().readableBytes() >= 1) { String s4 = SharedConstants.a(packetplayincustompayload.b().e(32767)); if (s4.length() <= 35) { containeranvil.a(s4); } } else { containeranvil.a(""); } } } else if ("MC|Struct".equals(s)) { if (!this.player.isCreativeAndOp()) { return; } packetdataserializer = packetplayincustompayload.b(); try { BlockPosition blockposition1 = new BlockPosition(packetdataserializer.readInt(), packetdataserializer.readInt(), packetdataserializer.readInt()); IBlockData iblockdata1 = this.player.world.getType(blockposition1); tileentity = this.player.world.getTileEntity(blockposition1); if (tileentity instanceof TileEntityStructure) { TileEntityStructure tileentitystructure = (TileEntityStructure) tileentity; byte b1 = packetdataserializer.readByte(); s1 = packetdataserializer.e(32); tileentitystructure.a(TileEntityStructure.UsageMode.valueOf(s1)); tileentitystructure.a(packetdataserializer.e(64)); int i1 = MathHelper.clamp(packetdataserializer.readInt(), -32, 32); int j1 = MathHelper.clamp(packetdataserializer.readInt(), -32, 32); int k1 = MathHelper.clamp(packetdataserializer.readInt(), -32, 32); tileentitystructure.b(new BlockPosition(i1, j1, k1)); int l1 = MathHelper.clamp(packetdataserializer.readInt(), 0, 32); int i2 = MathHelper.clamp(packetdataserializer.readInt(), 0, 32); int j2 = MathHelper.clamp(packetdataserializer.readInt(), 0, 32); tileentitystructure.c(new BlockPosition(l1, i2, j2)); String s5 = packetdataserializer.e(32); tileentitystructure.b(EnumBlockMirror.valueOf(s5)); String s6 = packetdataserializer.e(32); tileentitystructure.b(EnumBlockRotation.valueOf(s6)); tileentitystructure.b(packetdataserializer.e(128)); tileentitystructure.a(packetdataserializer.readBoolean()); tileentitystructure.e(packetdataserializer.readBoolean()); tileentitystructure.f(packetdataserializer.readBoolean()); tileentitystructure.a(MathHelper.a(packetdataserializer.readFloat(), 0.0F, 1.0F)); tileentitystructure.a(packetdataserializer.h()); String s7 = tileentitystructure.a(); if (b1 == 2) { if (tileentitystructure.q()) { this.player.a((IChatBaseComponent) (new ChatMessage("structure_block.save_success", new Object[] { s7})), false); } else { this.player.a((IChatBaseComponent) (new ChatMessage("structure_block.save_failure", new Object[] { s7})), false); } } else if (b1 == 3) { if (!tileentitystructure.E()) { this.player.a((IChatBaseComponent) (new ChatMessage("structure_block.load_not_found", new Object[] { s7})), false); } else if (tileentitystructure.r()) { this.player.a((IChatBaseComponent) (new ChatMessage("structure_block.load_success", new Object[] { s7})), false); } else { this.player.a((IChatBaseComponent) (new ChatMessage("structure_block.load_prepare", new Object[] { s7})), false); } } else if (b1 == 4) { if (tileentitystructure.p()) { this.player.a((IChatBaseComponent) (new ChatMessage("structure_block.size_success", new Object[] { s7})), false); } else { this.player.a((IChatBaseComponent) (new ChatMessage("structure_block.size_failure", new Object[0])), false); } } tileentitystructure.update(); this.player.world.notify(blockposition1, iblockdata1, iblockdata1, 3); } } catch (Exception exception6) { PlayerConnection.LOGGER.error("Couldn\'t set structure block", exception6); this.disconnect("Invalid structure data!"); // CraftBukkit } } else if ("MC|PickItem".equals(s)) { packetdataserializer = packetplayincustompayload.b(); try { k = packetdataserializer.g(); this.player.inventory.d(k); this.player.playerConnection.sendPacket(new PacketPlayOutSetSlot(-2, this.player.inventory.itemInHandIndex, this.player.inventory.getItem(this.player.inventory.itemInHandIndex))); this.player.playerConnection.sendPacket(new PacketPlayOutSetSlot(-2, k, this.player.inventory.getItem(k))); this.player.playerConnection.sendPacket(new PacketPlayOutHeldItemSlot(this.player.inventory.itemInHandIndex)); } catch (Exception exception7) { IllegalPacketEvent.process(player.getBukkitEntity(), "InvalidPickItem", "Invalid PickItem", exception7); // Paper } } // CraftBukkit start else if (packetplayincustompayload.a().equals("REGISTER")) { try { String channels = packetplayincustompayload.b().toString(com.google.common.base.Charsets.UTF_8); for (String channel : channels.split("\0")) { getPlayer().addChannel(channel); } } catch (Exception ex) { PlayerConnection.LOGGER.error("Couldn\'t register custom payload", ex); this.disconnect("Invalid payload REGISTER!"); } } else if (packetplayincustompayload.a().equals("UNREGISTER")) { try { String channels = packetplayincustompayload.b().toString(com.google.common.base.Charsets.UTF_8); for (String channel : channels.split("\0")) { getPlayer().removeChannel(channel); } } catch (Exception ex) { PlayerConnection.LOGGER.error("Couldn\'t unregister custom payload", ex); this.disconnect("Invalid payload UNREGISTER!"); } } else { try { byte[] data = new byte[packetplayincustompayload.b().readableBytes()]; packetplayincustompayload.b().readBytes(data); server.getMessenger().dispatchIncomingMessage(player.getBukkitEntity(), packetplayincustompayload.a(), data); } catch (Exception ex) { PlayerConnection.LOGGER.error("Couldn\'t dispatch custom payload", ex); this.disconnect("Invalid custom payload!"); } } // CraftBukkit end } } } } // CraftBukkit start - Add "isDisconnected" method public final boolean isDisconnected() { return (!this.player.joining && !this.networkManager.isConnected()) || this.processedDisconnect; // Paper } }