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-rw-r--r--nms-patches/PlayerConnection.patch1458
1 files changed, 1458 insertions, 0 deletions
diff --git a/nms-patches/PlayerConnection.patch b/nms-patches/PlayerConnection.patch
new file mode 100644
index 00000000..577557e6
--- /dev/null
+++ b/nms-patches/PlayerConnection.patch
@@ -0,0 +1,1458 @@
+--- ../work/decompile-bb26c12b/net/minecraft/server/PlayerConnection.java 2014-11-27 08:59:46.853421177 +1100
++++ src/main/java/net/minecraft/server/PlayerConnection.java 2014-11-27 08:42:10.148850918 +1100
+@@ -16,6 +16,48 @@
+ import org.apache.logging.log4j.LogManager;
+ import org.apache.logging.log4j.Logger;
+
++// CraftBukkit start
++import java.util.concurrent.ExecutionException;
++import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
++import java.util.HashSet;
++
++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.Location;
++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.PlayerInteractEntityEvent;
++import org.bukkit.event.player.PlayerInteractAtEntityEvent;
++import org.bukkit.event.player.PlayerItemHeldEvent;
++import org.bukkit.event.player.PlayerKickEvent;
++import org.bukkit.event.player.PlayerMoveEvent;
++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.InventoryView;
++import org.bukkit.util.NumberConversions;
++// CraftBukkit end
++
+ public class PlayerConnection implements PacketListenerPlayIn, IUpdatePlayerListBox {
+
+ private static final Logger c = LogManager.getLogger();
+@@ -29,13 +71,17 @@
+ private int i;
+ private long j;
+ private long k;
+- private int chatThrottle;
++ // CraftBukkit start - multithreaded fields
++ private volatile int chatThrottle;
++ private static final AtomicIntegerFieldUpdater chatSpamField = AtomicIntegerFieldUpdater.newUpdater(PlayerConnection.class, "chatThrottle");
++ // CraftBukkit end
+ private int m;
+ private IntHashMap n = new IntHashMap();
+ private double o;
+ private double p;
+ private double q;
+ public boolean checkMovement = true;
++ private boolean processedDisconnect; // CraftBukkit - added
+
+ public PlayerConnection(MinecraftServer minecraftserver, NetworkManager networkmanager, EntityPlayer entityplayer) {
+ this.minecraftServer = minecraftserver;
+@@ -43,7 +89,37 @@
+ networkmanager.a((PacketListener) this);
+ this.player = entityplayer;
+ entityplayer.playerConnection = this;
++
++ // CraftBukkit start - add fields and methods
++ this.server = minecraftserver.server;
++ }
++
++ private final org.bukkit.craftbukkit.CraftServer server;
++ private int lastTick = MinecraftServer.currentTick;
++ private int lastDropTick = 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;
++
++ // For the PacketPlayOutBlockPlace hack :(
++ Long lastPacket;
++
++ // Store the last block right clicked and what type it was
++ private Item lastMaterial;
++
++ public CraftPlayer getPlayer() {
++ return (this.player == null) ? null : (CraftPlayer) this.player.getBukkitEntity();
+ }
++ private final static HashSet<Integer> invalidItems = new HashSet<Integer>(java.util.Arrays.asList(8, 9, 10, 11, 26, 34, 36, 43, 51, 52, 55, 59, 60, 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 c() {
+ this.h = false;
+@@ -57,9 +133,14 @@
+ }
+
+ this.minecraftServer.methodProfiler.b();
++ // CraftBukkit start
++ for (int spam; (spam = this.chatThrottle) > 0 && !chatSpamField.compareAndSet(this, spam, spam - 1); ) ;
++ /* Use thread-safe field access instead
+ if (this.chatThrottle > 0) {
+ --this.chatThrottle;
+ }
++ */
++ // CraftBukkit end
+
+ if (this.m > 0) {
+ --this.m;
+@@ -76,11 +157,27 @@
+ }
+
+ public void disconnect(String s) {
++ // CraftBukkit start - fire PlayerKickEvent
++ 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
+ ChatComponentText chatcomponenttext = new ChatComponentText(s);
+
+ this.networkManager.a(new PacketPlayOutKickDisconnect(chatcomponenttext), new PlayerConnectionFuture(this, chatcomponenttext), new GenericFutureListener[0]);
+ this.networkManager.k();
+- Futures.getUnchecked(this.minecraftServer.postToMainThread(new PlayerConnectionDisconnector(this)));
++ this.minecraftServer.postToMainThread(new PlayerConnectionDisconnector(this)); // CraftBukkit - Don't wait
+ }
+
+ public void a(PacketPlayInSteerVehicle packetplayinsteervehicle) {
+@@ -90,6 +187,13 @@
+
+ public void a(PacketPlayInFlying packetplayinflying) {
+ PlayerConnectionUtils.ensureMainThread(packetplayinflying, this, this.player.u());
++ // CraftBukkit start - Check for NaN
++ if (Double.isNaN(packetplayinflying.x) || Double.isNaN(packetplayinflying.y) || Double.isNaN(packetplayinflying.z)) {
++ c.warn(player.getName() + " was caught trying to crash the server with an invalid position.");
++ getPlayer().kickPlayer("Nope!");
++ return;
++ }
++ // CraftBukkit end
+ WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension);
+
+ this.h = true;
+@@ -108,8 +212,65 @@
+ this.checkMovement = true;
+ }
+ }
++ // CraftBukkit start - fire PlayerMoveEvent
++ 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 && !(packetplayinflying.hasPos && packetplayinflying.y == -999.0D)) {
++ 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.checkMovement && !this.player.dead)) {
++ 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) {
++ 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()) {
++ this.player.playerConnection.sendPacket(new PacketPlayOutPosition(from.getX(), from.getY() + 1.6200000047683716D, from.getZ(), from.getYaw(), from.getPitch(), Collections.emptySet()));
++ 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 (!to.equals(event.getTo()) && !event.isCancelled()) {
++ this.player.getBukkitEntity().teleport(event.getTo(), PlayerTeleportEvent.TeleportCause.UNKNOWN);
++ 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;
++ }
++ }
++ }
+
+- if (this.checkMovement) {
++ if (this.checkMovement && !this.player.dead) {
++ // CraftBukkit end
+ this.f = this.e;
+ double d7;
+ double d8;
+@@ -203,12 +364,14 @@
+ double d11 = d7 - this.player.locX;
+ double d12 = d8 - this.player.locY;
+ double d13 = d9 - this.player.locZ;
+- double d14 = Math.min(Math.abs(d11), Math.abs(this.player.motX));
+- double d15 = Math.min(Math.abs(d12), Math.abs(this.player.motY));
+- double d16 = Math.min(Math.abs(d13), Math.abs(this.player.motZ));
++ // CraftBukkit start - min to max
++ double d14 = Math.max(Math.abs(d11), Math.abs(this.player.motX));
++ double d15 = Math.max(Math.abs(d12), Math.abs(this.player.motY));
++ double d16 = Math.max(Math.abs(d13), Math.abs(this.player.motZ));
++ // CraftBukkit end
+ double d17 = d14 * d14 + d15 * d15 + d16 * d16;
+
+- if (d17 > 100.0D && (!this.minecraftServer.S() || !this.minecraftServer.R().equals(this.player.getName()))) {
++ if (d17 > 100.0D && this.checkMovement && (!this.minecraftServer.S() || !this.minecraftServer.R().equals(this.player.getName()))) { // CraftBukkit - Added this.checkMovement condition to solve this check being triggered by teleports
+ PlayerConnection.c.warn(this.player.getName() + " moved too quickly! " + d11 + "," + d12 + "," + d13 + " (" + d14 + ", " + d15 + ", " + d16 + ")");
+ this.a(this.o, this.p, this.q, this.player.yaw, this.player.pitch);
+ return;
+@@ -281,6 +444,49 @@
+ }
+
+ public void a(double d0, double d1, double d2, float f, float f1, Set set) {
++ // CraftBukkit start - Delegate to teleport(Location)
++ Player player = this.getPlayer();
++ Location from = player.getLocation();
++ Location to = new Location(this.getPlayer().getWorld(), d0, d1, d2, f, f1);
++ PlayerTeleportEvent event = new PlayerTeleportEvent(player, from, to, PlayerTeleportEvent.TeleportCause.UNKNOWN);
++ this.server.getPluginManager().callEvent(event);
++
++ from = event.getFrom();
++ to = event.isCancelled() ? from : event.getTo();
++
++ this.teleport(to, set);
++ }
++
++ public void teleport(Location dest) {
++ teleport(dest, Collections.emptySet());
++ }
++
++ public void teleport(Location dest, Set set) {
++ double d0, d1, d2;
++ float f, f1;
++
++ d0 = dest.getX();
++ d1 = dest.getY();
++ d2 = dest.getZ();
++ f = dest.getYaw();
++ f1 = dest.getPitch();
++
++ // TODO: make sure this is the best way to address this.
++ if (Float.isNaN(f)) {
++ f = 0;
++ }
++
++ if (Float.isNaN(f1)) {
++ f1 = 0;
++ }
++
++ this.lastPosX = d0;
++ this.lastPosY = d1;
++ this.lastPosZ = d2;
++ this.lastYaw = f;
++ this.lastPitch = f1;
++ this.justTeleported = true;
++ // CraftBukkit end
+ this.checkMovement = false;
+ this.o = d0;
+ this.p = d1;
+@@ -314,32 +520,49 @@
+
+ public void a(PacketPlayInBlockDig packetplayinblockdig) {
+ PlayerConnectionUtils.ensureMainThread(packetplayinblockdig, this, this.player.u());
++ if (this.player.dead) return; // CraftBukkit
+ WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension);
+ BlockPosition blockposition = packetplayinblockdig.a();
+
+ this.player.z();
++ // CraftBukkit start
+ switch (SwitchHelperCommandActionType.a[packetplayinblockdig.c().ordinal()]) {
+- case 1:
++ case 1: // DROP_ITEM
+ if (!this.player.v()) {
++ // 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) {
++ this.c.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 2:
++ case 2: // DROP_ALL_ITEMS
+ if (!this.player.v()) {
+ this.player.a(true);
+ }
+
+ return;
+
+- case 3:
++ case 3: // RELEASE_USE_ITEM
+ this.player.bT();
+ return;
+
+- case 4:
+- case 5:
+- case 6:
++ case 4: // START_DESTROY_BLOCK
++ case 5: // ABORT_DESTROY_BLOCK
++ case 6: // 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);
+@@ -354,7 +577,15 @@
+ if (!this.minecraftServer.a(worldserver, blockposition, this.player) && worldserver.af().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());
+ 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() == EnumPlayerDigType.STOP_DESTROY_BLOCK) {
+@@ -374,11 +605,38 @@
+ default:
+ throw new IllegalArgumentException("Invalid player action");
+ }
++ // CraftBukkit end
+ }
+
+ public void a(PacketPlayInBlockPlace packetplayinblockplace) {
+ PlayerConnectionUtils.ensureMainThread(packetplayinblockplace, this, this.player.u());
+ WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension);
++
++ // CraftBukkit start
++ if (this.player.dead) return;
++
++ // This is a horrible hack needed because the client sends 2 packets on 'right mouse click'
++ // aimed at a block. We shouldn't need to get the second packet if the data is handled
++ // but we cannot know what the client will do, so we might still get it
++ //
++ // If the time between packets is small enough, and the 'signature' similar, we discard the
++ // second one. This sadly has to remain until Mojang makes their packets saner. :(
++ // -- Grum
++ if (packetplayinblockplace.getFace() == 255) {
++ if (packetplayinblockplace.getItemStack() != null && packetplayinblockplace.getItemStack().getItem() == this.lastMaterial && this.lastPacket != null && packetplayinblockplace.timestamp - this.lastPacket < 100) {
++ this.lastPacket = null;
++ return;
++ }
++ } else {
++ this.lastMaterial = packetplayinblockplace.getItemStack() == null ? null : packetplayinblockplace.getItemStack().getItem();
++ this.lastPacket = packetplayinblockplace.timestamp;
++ }
++ // CraftBukkit - if rightclick decremented the item, always send the update packet. */
++ // this is not here for CraftBukkit's own functionality; rather it is to fix
++ // a notch bug where the item doesn't update correctly.
++ boolean always = false;
++ // CraftBukkit end
++
+ ItemStack itemstack = this.player.inventory.getItemInHand();
+ boolean flag = false;
+ BlockPosition blockposition = packetplayinblockplace.a();
+@@ -390,7 +648,18 @@
+ return;
+ }
+
+- this.player.playerInteractManager.useItem(this.player, worldserver, itemstack);
++ // CraftBukkit start
++ int itemstackAmount = itemstack.count;
++ org.bukkit.event.player.PlayerInteractEvent event = CraftEventFactory.callPlayerInteractEvent(this.player, Action.RIGHT_CLICK_AIR, itemstack);
++ if (event.useItemInHand() != Event.Result.DENY) {
++ this.player.playerInteractManager.useItem(this.player, this.player.world, itemstack);
++ }
++
++ // CraftBukkit - notch decrements the counter by 1 in the above method with food,
++ // snowballs and so forth, but he does it in a place that doesn't cause the
++ // inventory update packet to get sent
++ always = (itemstack.count != itemstackAmount) || itemstack.getItem() == Item.getItemOf(Blocks.WATERLILY);
++ // CraftBukkit end
+ } else 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())});
+
+@@ -398,9 +667,21 @@
+ this.player.playerConnection.sendPacket(new PacketPlayOutChat(chatmessage));
+ flag = true;
+ } else {
++ // 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;
++ }
++
++ if (!worldserver.af().a(blockposition)) {
++ return;
++ }
++
+ if (this.checkMovement && this.player.e((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.af().a(blockposition)) {
+- this.player.playerInteractManager.interact(this.player, worldserver, itemstack, blockposition, enumdirection, packetplayinblockplace.d(), packetplayinblockplace.e(), packetplayinblockplace.f());
++ always = !this.player.playerInteractManager.interact(this.player, worldserver, itemstack, blockposition, enumdirection, packetplayinblockplace.d(), packetplayinblockplace.e(), packetplayinblockplace.f());
+ }
++ // CraftBukkit end
+
+ flag = true;
+ }
+@@ -423,7 +704,8 @@
+
+ this.player.activeContainer.b();
+ this.player.g = false;
+- if (!ItemStack.matches(this.player.inventory.getItemInHand(), packetplayinblockplace.getItemStack())) {
++ // CraftBukkit - TODO CHECK IF NEEDED -- new if structure might not need 'always'. Kept it in for now, but may be able to remove in future
++ if (!ItemStack.matches(this.player.inventory.getItemInHand(), packetplayinblockplace.getItemStack()) || always) {
+ this.sendPacket(new PacketPlayOutSetSlot(this.player.activeContainer.windowId, slot.rawSlotIndex, this.player.inventory.getItemInHand()));
+ }
+ }
+@@ -437,8 +719,8 @@
+ WorldServer[] aworldserver = this.minecraftServer.worldServer;
+ int i = aworldserver.length;
+
+- for (int j = 0; j < i; ++j) {
+- WorldServer worldserver = aworldserver[j];
++ // CraftBukkit - use the worlds array list
++ for (WorldServer worldserver : minecraftServer.worlds) {
+
+ if (worldserver != null) {
+ entity = packetplayinspectate.a(worldserver);
+@@ -455,6 +737,7 @@
+ WorldServer worldserver1 = this.player.u();
+ WorldServer worldserver2 = (WorldServer) entity.world;
+
++ /* CraftBukkit start - replace with bukkit handling for multi-world
+ this.player.dimension = entity.dimension;
+ this.sendPacket(new PacketPlayOutRespawn(this.player.dimension, worldserver1.getDifficulty(), worldserver1.getWorldData().getType(), this.player.playerInteractManager.getGameMode()));
+ worldserver1.removeEntity(this.player);
+@@ -472,6 +755,9 @@
+ this.player.playerInteractManager.a(worldserver2);
+ this.minecraftServer.getPlayerList().b(this.player, worldserver2);
+ this.minecraftServer.getPlayerList().updateClient(this.player);
++ */
++ this.player.getBukkitEntity().teleport(entity.getBukkitEntity());
++ // CraftBukkit end
+ } else {
+ this.player.enderTeleportTo(entity.locX, entity.locY, entity.locZ);
+ }
+@@ -483,14 +769,29 @@
+ public void a(PacketPlayInResourcePackStatus packetplayinresourcepackstatus) {}
+
+ public void a(IChatBaseComponent ichatbasecomponent) {
+- PlayerConnection.c.info(this.player.getName() + " lost connection: " + ichatbasecomponent);
++ // CraftBukkit start - Rarely it would send a disconnect line twice
++ if (this.processedDisconnect) {
++ return;
++ } else {
++ this.processedDisconnect = true;
++ }
++ // CraftBukkit end
++ c.info(this.player.getName() + " lost connection: " + ichatbasecomponent.c()); // CraftBukkit - Don't toString the component
+ this.minecraftServer.aF();
++ // CraftBukkit start - Replace vanilla quit message handling with our own.
++ /*
+ ChatMessage chatmessage = new ChatMessage("multiplayer.player.left", new Object[] { this.player.getScoreboardDisplayName()});
+
+ chatmessage.getChatModifier().setColor(EnumChatFormat.YELLOW);
+ this.minecraftServer.getPlayerList().sendMessage(chatmessage);
++ */
++
+ this.player.q();
+- this.minecraftServer.getPlayerList().disconnect(this.player);
++ 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.S() && this.player.getName().equals(this.minecraftServer.R())) {
+ PlayerConnection.c.info("Stopping singleplayer server as player logged out");
+ this.minecraftServer.safeShutdown();
+@@ -511,6 +812,15 @@
+ return;
+ }
+ }
++
++ // CraftBukkit start
++ if (packet == null) {
++ 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.handle(packet);
+@@ -524,18 +834,34 @@
+ }
+
+ public void a(PacketPlayInHeldItemSlot packetplayinhelditemslot) {
++ // CraftBukkit start
++ if (this.player.dead) return;
+ PlayerConnectionUtils.ensureMainThread(packetplayinhelditemslot, this, this.player.u());
+ 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.z(); // RENAME
++ return;
++ }
++ // CraftBukkit end
+ this.player.inventory.itemInHandIndex = packetplayinhelditemslot.a();
+ this.player.z();
+ } else {
+ PlayerConnection.c.warn(this.player.getName() + " tried to set an invalid carried item");
++ this.disconnect("Nope!"); // CraftBukkit
+ }
+ }
+
+ public void a(PacketPlayInChat packetplayinchat) {
+- PlayerConnectionUtils.ensureMainThread(packetplayinchat, this, this.player.u());
+- if (this.player.getChatFlags() == EnumChatVisibility.HIDDEN) {
++ // CraftBukkit start - async chat
++ boolean isSync = packetplayinchat.a().startsWith("/");
++ if (packetplayinchat.a().startsWith("/")) {
++ PlayerConnectionUtils.ensureMainThread(packetplayinchat, this, this.player.u());
++ }
++ // CraftBukkit end
++ if (this.player.dead || this.player.getChatFlags() == EnumChatVisibility.HIDDEN) { // CraftBukkit - dead men tell no tales
+ ChatMessage chatmessage = new ChatMessage("chat.cannotSend", new Object[0]);
+
+ chatmessage.getChatModifier().setColor(EnumChatFormat.RED);
+@@ -548,39 +874,248 @@
+
+ for (int i = 0; i < s.length(); ++i) {
+ if (!SharedConstants.isAllowedChatCharacter(s.charAt(i))) {
+- this.disconnect("Illegal characters in chat");
++ // CraftBukkit start - threadsafety
++ if (!isSync) {
++ Waitable waitable = new Waitable() {
++ @Override
++ protected Object evaluate() {
++ PlayerConnection.this.disconnect("Illegal characters in chat");
++ 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("Illegal characters in chat");
++ }
++ // CraftBukkit end
+ return;
+ }
+ }
+
+- if (s.startsWith("/")) {
+- this.handleCommand(s);
++ // CraftBukkit start
++ if (isSync) {
++ try {
++ this.minecraftServer.server.playerCommandState = true;
++ this.handleCommand(s);
++ } finally {
++ this.minecraftServer.server.playerCommandState = false;
++ }
++ } else if (s.isEmpty()) {
++ c.warn(this.player.getName() + " tried to send an empty message");
++ } else if (getPlayer().isConversing()) {
++ getPlayer().acceptConversationInput(s);
++ } else if (this.player.getChatFlags() == 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);
+ }
+
+- this.chatThrottle += 20;
+- if (this.chatThrottle > 200 && !this.minecraftServer.getPlayerList().isOp(this.player.getProfile())) {
+- this.disconnect("disconnect.spam");
+- }
++ // CraftBukkit start - replaced with thread safe throttle
++ // this.chatThrottle += 20;
++ if (chatSpamField.addAndGet(this, 20) > 200 && !this.minecraftServer.getPlayerList().isOp(this.player.getProfile())) {
++ if (!isSync) {
++ Waitable waitable = new Waitable() {
++ @Override
++ protected Object evaluate() {
++ PlayerConnection.this.disconnect("disconnect.spam");
++ 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("disconnect.spam");
++ }
++ // CraftBukkit end
++ }
+ }
+ }
++
++ // CraftBukkit start - add method
++ public void chat(String s, boolean async) {
++ if (s.isEmpty() || this.player.getChatFlags() == EnumChatVisibility.HIDDEN) {
++ return;
++ }
++
++ if (!async && s.startsWith("/")) {
++ this.handleCommand(s);
++ } else if (this.player.getChatFlags() == EnumChatVisibility.SYSTEM) {
++ // Do nothing, this is coming from a plugin
++ } else {
++ Player player = this.getPlayer();
++ AsyncPlayerChatEvent event = new AsyncPlayerChatEvent(async, player, s, new LazyPlayerSet());
++ 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;
++ }
++
++ s = String.format(event.getFormat(), event.getPlayer().getDisplayName(), event.getMessage());
++ 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) {
+- this.minecraftServer.getCommandHandler().a(this.player, s);
++ // CraftBukkit start - whole method
++ this.c.info(this.player.getName() + " issued server command: " + s);
++
++ CraftPlayer player = this.getPlayer();
++
++ PlayerCommandPreprocessEvent event = new PlayerCommandPreprocessEvent(player, s, new LazyPlayerSet());
++ this.server.getPluginManager().callEvent(event);
++
++ if (event.isCancelled()) {
++ return;
++ }
++
++ try {
++ if (this.server.dispatchCommand(event.getPlayer(), event.getMessage().substring(1))) {
++ 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);
++ return;
++ }
++ // this.minecraftServer.getCommandHandler().a(this.player, s);
++ // CraftBukkit end
+ }
+
+ public void a(PacketPlayInArmAnimation packetplayinarmanimation) {
++ if (this.player.dead) return; // CraftBukkit
+ PlayerConnectionUtils.ensureMainThread(packetplayinarmanimation, this, this.player.u());
+ this.player.z();
++ // CraftBukkit start - Raytrace to look for 'rogue armswings'
++ float f = 1.0F;
++ float f1 = this.player.lastPitch + (this.player.pitch - this.player.lastPitch) * f;
++ float f2 = this.player.lastYaw + (this.player.yaw - this.player.lastYaw) * f;
++ double d0 = this.player.lastX + (this.player.locX - this.player.lastX) * (double) f;
++ double d1 = this.player.lastY + (this.player.locY - this.player.lastY) * (double) f + 1.62D - (double) this.player.getHeadHeight();
++ double d2 = this.player.lastZ + (this.player.locZ - this.player.lastZ) * (double) f;
++ 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 = 5.0D;
++ 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 != EnumMovingObjectType.BLOCK) {
++ CraftEventFactory.callPlayerInteractEvent(this.player, Action.LEFT_CLICK_AIR, this.player.inventory.getItemInHand());
++ }
++
++ // Arm swing animation
++ PlayerAnimationEvent event = new PlayerAnimationEvent(this.getPlayer());
++ this.server.getPluginManager().callEvent(event);
++
++ if (event.isCancelled()) return;
++ // CraftBukkit end
+ this.player.bv();
+ }
+
+ public void a(PacketPlayInEntityAction packetplayinentityaction) {
+ PlayerConnectionUtils.ensureMainThread(packetplayinentityaction, this, this.player.u());
++ // CraftBukkit start
++ if (this.player.dead) return;
++ switch (packetplayinentityaction.b()) {
++ case START_SNEAKING:
++ case STOP_SNEAKING:
++ PlayerToggleSneakEvent event = new PlayerToggleSneakEvent(this.getPlayer(), packetplayinentityaction.b() == 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() == EnumPlayerAction.START_SPRINTING);
++ this.server.getPluginManager().callEvent(e2);
++
++ if (e2.isCancelled()) {
++ return;
++ }
++ break;
++ }
+ this.player.z();
+ switch (SwitchHelperCommandActionType.b[packetplayinentityaction.b().ordinal()]) {
+ case 1:
+@@ -601,7 +1136,7 @@
+
+ case 5:
+ this.player.a(false, true, true);
+- this.checkMovement = false;
++ // this.checkMovement = false; // CraftBukkit - this is handled in teleport
+ break;
+
+ case 6:
+@@ -623,6 +1158,7 @@
+ }
+
+ public void a(PacketPlayInUseEntity packetplayinuseentity) {
++ if (this.player.dead) return; // CraftBukkit
+ PlayerConnectionUtils.ensureMainThread(packetplayinuseentity, this, this.player.u());
+ WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension);
+ Entity entity = packetplayinuseentity.a((World) worldserver);
+@@ -637,18 +1173,72 @@
+ }
+
+ if (this.player.h(entity) < d0) {
++ ItemStack itemInHand = this.player.inventory.getItemInHand(); // CraftBukkit
++
++ if (packetplayinuseentity.a() == EnumEntityUseAction.INTERACT
++ || packetplayinuseentity.a() == EnumEntityUseAction.INTERACT_AT) {
++ // CraftBukkit start
++ boolean triggerTagUpdate = itemInHand != null && itemInHand.getItem() == Items.NAME_TAG && entity instanceof EntityInsentient;
++ boolean triggerChestUpdate = itemInHand != null && itemInHand.getItem() == Item.getItemOf(Blocks.CHEST) && entity instanceof EntityHorse;
++ boolean triggerLeashUpdate = itemInHand != null && itemInHand.getItem() == Items.LEAD && entity instanceof EntityInsentient;
++ PlayerInteractEntityEvent event;
++ if (packetplayinuseentity.a() == EnumEntityUseAction.INTERACT) {
++ event = new PlayerInteractEntityEvent((Player) this.getPlayer(), entity.getBukkitEntity());
++ } else {
++ Vec3D target = packetplayinuseentity.b();
++ event = new PlayerInteractAtEntityEvent((Player) this.getPlayer(), entity.getBukkitEntity(), new org.bukkit.util.Vector(target.a, target.b, target.c));
++ }
++ 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(1, entity, ((EntityInsentient) entity).getLeashHolder()));
++ }
++
++ if (triggerTagUpdate && (event.isCancelled() || this.player.inventory.getItemInHand() == null || this.player.inventory.getItemInHand().getItem() != Items.NAME_TAG)) {
++ // Refresh the current entity metadata
++ this.sendPacket(new PacketPlayOutEntityMetadata(entity.getId(), entity.datawatcher, true));
++ }
++ if (triggerChestUpdate && (event.isCancelled() || this.player.inventory.getItemInHand() == null || this.player.inventory.getItemInHand().getItem() != Item.getItemOf(Blocks.CHEST))) {
++ this.sendPacket(new PacketPlayOutEntityMetadata(entity.getId(), entity.datawatcher, true));
++ }
++
++ if (event.isCancelled()) {
++ return;
++ }
++ // CraftBukkit end
++ }
++
+ if (packetplayinuseentity.a() == EnumEntityUseAction.INTERACT) {
+ this.player.u(entity);
++
++ // CraftBukkit start
++ if (itemInHand != null && itemInHand.count <= -1) {
++ this.player.updateInventory(this.player.activeContainer);
++ }
++ // CraftBukkit end
+ } else if (packetplayinuseentity.a() == EnumEntityUseAction.INTERACT_AT) {
+ entity.a((EntityHuman) this.player, packetplayinuseentity.b());
++
++ // CraftBukkit start
++ if (itemInHand != null && itemInHand.count <= -1) {
++ this.player.updateInventory(this.player.activeContainer);
++ }
++ // CraftBukkit end
+ } else if (packetplayinuseentity.a() == EnumEntityUseAction.ATTACK) {
+- if (entity instanceof EntityItem || entity instanceof EntityExperienceOrb || entity instanceof EntityArrow || entity == this.player) {
++ if (entity instanceof EntityItem || entity instanceof EntityExperienceOrb || entity instanceof EntityArrow || (entity == this.player && !player.v())) { // CraftBukkit, RENAME
+ this.disconnect("Attempting to attack an invalid entity");
+ this.minecraftServer.warning("Player " + this.player.getName() + " tried to attack an invalid entity");
+ return;
+ }
+
+ this.player.attack(entity);
++
++ // CraftBukkit start
++ if (itemInHand != null && itemInHand.count <= -1) {
++ this.player.updateInventory(this.player.activeContainer);
++ }
++ // CraftBukkit end
+ }
+ }
+ }
+@@ -663,7 +1253,8 @@
+ switch (SwitchHelperCommandActionType.c[enumclientcommand.ordinal()]) {
+ case 1:
+ if (this.player.viewingCredits) {
+- this.player = this.minecraftServer.getPlayerList().moveToWorld(this.player, 0, true);
++ // 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
+ } else if (this.player.u().getWorldData().isHardcore()) {
+ if (this.minecraftServer.S() && this.player.getName().equals(this.minecraftServer.R())) {
+ this.player.playerConnection.disconnect("You have died. Game over, man, it\'s game over!");
+@@ -694,11 +1285,17 @@
+ }
+
+ public void a(PacketPlayInCloseWindow packetplayinclosewindow) {
++ if (this.player.dead) return; // CraftBukkit
+ PlayerConnectionUtils.ensureMainThread(packetplayinclosewindow, this, this.player.u());
++
++ CraftEventFactory.handleInventoryCloseEvent(this.player); // CraftBukkit
++
+ this.player.p();
+ }
+
+ public void a(PacketPlayInWindowClick packetplayinwindowclick) {
++ if (this.player.dead) return; // CraftBukkit
++
+ PlayerConnectionUtils.ensureMainThread(packetplayinwindowclick, this, this.player.u());
+ this.player.z();
+ if (this.player.activeContainer.windowId == packetplayinwindowclick.a() && this.player.activeContainer.c(this.player)) {
+@@ -711,7 +1308,263 @@
+
+ this.player.a(this.player.activeContainer, (List) arraylist);
+ } else {
+- ItemStack itemstack = this.player.activeContainer.clickItem(packetplayinwindowclick.b(), packetplayinwindowclick.c(), packetplayinwindowclick.f(), this.player);
++ // ItemStack itemstack = this.player.activeContainer.clickItem(packetplayinwindowclick.b(), packetplayinwindowclick.c(), packetplayinwindowclick.f(), this.player);
++ // 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 = null;
++ ClickType click = ClickType.UNKNOWN;
++ InventoryAction action = InventoryAction.UNKNOWN;
++
++ ItemStack itemstack = null;
++
++ if (packetplayinwindowclick.b() == -1) {
++ type = SlotType.OUTSIDE; // override
++ click = packetplayinwindowclick.c() == 0 ? ClickType.WINDOW_BORDER_LEFT : ClickType.WINDOW_BORDER_RIGHT;
++ action = InventoryAction.NOTHING;
++ } else if (packetplayinwindowclick.f() == 0) {
++ 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() != null) {
++ action = packetplayinwindowclick.c() == 0 ? InventoryAction.DROP_ALL_CURSOR : InventoryAction.DROP_ONE_CURSOR;
++ }
++ } else {
++ Slot slot = this.player.activeContainer.getSlot(packetplayinwindowclick.b());
++ if (slot != null) {
++ ItemStack clickedItem = slot.getItem();
++ ItemStack cursor = player.inventory.getCarried();
++ if (clickedItem == null) {
++ if (cursor != null) {
++ action = packetplayinwindowclick.c() == 0 ? InventoryAction.PLACE_ALL : InventoryAction.PLACE_ONE;
++ }
++ } else if (slot.isAllowed(player)) {
++ if (cursor == null) {
++ 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.count : 1;
++ toPlace = Math.min(toPlace, clickedItem.getMaxStackSize() - clickedItem.count);
++ toPlace = Math.min(toPlace, slot.inventory.getMaxStackSize() - clickedItem.count);
++ if (toPlace == 1) {
++ action = InventoryAction.PLACE_ONE;
++ } else if (toPlace == cursor.count) {
++ 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.count <= 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.count >= 0) {
++ if (clickedItem.count + cursor.count <= cursor.getMaxStackSize()) {
++ // As of 1.5, this is result slots only
++ action = InventoryAction.PICKUP_ALL;
++ }
++ }
++ }
++ }
++ }
++ }
++ }
++ } else if (packetplayinwindowclick.f() == 1) {
++ 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;
++ }
++ }
++ }
++ } else if (packetplayinwindowclick.f() == 2) {
++ 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 == null || (clickedSlot.inventory == player.inventory && clickedSlot.isAllowed(hotbar)); // the slot will accept the hotbar item
++ if (clickedSlot.hasItem()) {
++ if (canCleanSwap) {
++ action = InventoryAction.HOTBAR_SWAP;
++ } else {
++ int firstEmptySlot = player.inventory.getFirstEmptySlotIndex();
++ if (firstEmptySlot > -1) {
++ action = InventoryAction.HOTBAR_MOVE_AND_READD;
++ } else {
++ action = InventoryAction.NOTHING; // This is not sane! Mojang: You should test for other slots of same type
++ }
++ }
++ } else if (!clickedSlot.hasItem() && hotbar != null && clickedSlot.isAllowed(hotbar)) {
++ action = InventoryAction.HOTBAR_SWAP;
++ } else {
++ action = InventoryAction.NOTHING;
++ }
++ } else {
++ action = InventoryAction.NOTHING;
++ }
++ // Special constructor for number key
++ event = new InventoryClickEvent(inventory, type, packetplayinwindowclick.b(), click, action, packetplayinwindowclick.c());
++ }
++ } else if (packetplayinwindowclick.f() == 3) {
++ if (packetplayinwindowclick.c() == 2) {
++ click = ClickType.MIDDLE;
++ if (packetplayinwindowclick.b() == -999) {
++ action = InventoryAction.NOTHING;
++ } else {
++ Slot slot = this.player.activeContainer.getSlot(packetplayinwindowclick.b());
++ if (slot != null && slot.hasItem() && player.abilities.canInstantlyBuild && player.inventory.getCarried() == null) {
++ action = InventoryAction.CLONE_STACK;
++ } else {
++ action = InventoryAction.NOTHING;
++ }
++ }
++ } else {
++ click = ClickType.UNKNOWN;
++ action = InventoryAction.UNKNOWN;
++ }
++ } else if (packetplayinwindowclick.f() == 4) {
++ 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() != null && 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() != null && 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;
++ }
++ } else if (packetplayinwindowclick.f() == 5) {
++ itemstack = this.player.activeContainer.clickItem(packetplayinwindowclick.b(), packetplayinwindowclick.c(), 5, this.player);
++ } else if (packetplayinwindowclick.f() == 6) {
++ click = ClickType.DOUBLE_CLICK;
++ action = InventoryAction.NOTHING;
++ if (packetplayinwindowclick.b() >= 0 && this.player.inventory.getCarried() != null) {
++ 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;
++ }
++ }
++ }
++ // TODO check on updates
++
++ if (packetplayinwindowclick.f() != 5) {
++ 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);
++ }
++ }
++ }
++
++ server.getPluginManager().callEvent(event);
++
++ switch (event.getResult()) {
++ case ALLOW:
++ case DEFAULT:
++ itemstack = this.player.activeContainer.clickItem(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;
++ }
++ }
++ // CraftBukkit end
+
+ if (ItemStack.matches(packetplayinwindowclick.e(), itemstack)) {
+ this.player.playerConnection.sendPacket(new PacketPlayOutTransaction(packetplayinwindowclick.a(), packetplayinwindowclick.d(), true));
+@@ -772,8 +1625,50 @@
+ }
+
+ boolean flag1 = packetplayinsetcreativeslot.a() >= 1 && packetplayinsetcreativeslot.a() < 36 + PlayerInventory.getHotbarSize();
+- boolean flag2 = itemstack == null || itemstack.getItem() != null;
++ // CraftBukkit - Add invalidItems check
++ boolean flag2 = itemstack == null || itemstack.getItem() != null && !invalidItems.contains(Item.getId(itemstack.getItem()));
+ boolean flag3 = itemstack == null || itemstack.getData() >= 0 && itemstack.count <= 64 && itemstack.count > 0;
++
++
++ // CraftBukkit start - Call click event
++ if (flag || (flag1 && !ItemStack.matches(this.player.defaultContainer.getSlot(packetplayinsetcreativeslot.a()).getItem(), packetplayinsetcreativeslot.getItemStack()))) { // Insist on valid slot
++
++ org.bukkit.entity.HumanEntity player = this.player.getBukkitEntity();
++ InventoryView inventory = new CraftInventoryView(player, player.getInventory(), this.player.defaultContainer);
++ 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 = flag3 = 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, null));
++ }
++ return;
++ }
++ }
++ // CraftBukkit end
+
+ if (flag1 && flag2 && flag3) {
+ if (itemstack == null) {
+@@ -796,6 +1691,7 @@
+ }
+
+ public void a(PacketPlayInTransaction packetplayintransaction) {
++ if (this.player.dead) return; // CraftBukkit
+ PlayerConnectionUtils.ensureMainThread(packetplayintransaction, this, this.player.u());
+ Short oshort = (Short) this.n.get(this.player.activeContainer.windowId);
+
+@@ -806,6 +1702,7 @@
+ }
+
+ public void a(PacketPlayInUpdateSign packetplayinupdatesign) {
++ if (this.player.dead) return; // CraftBukkit
+ PlayerConnectionUtils.ensureMainThread(packetplayinupdatesign, this, this.player.u());
+ this.player.z();
+ WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension);
+@@ -822,10 +1719,24 @@
+
+ if (!tileentitysign.b() || tileentitysign.c() != this.player) {
+ this.minecraftServer.warning("Player " + this.player.getName() + " just tried to change non-editable sign");
++ this.sendPacket(new PacketPlayOutUpdateSign(tileentity.world, packetplayinupdatesign.a(), tileentitysign.lines)); // CraftBukkit
+ return;
+ }
+
+- System.arraycopy(packetplayinupdatesign.b(), 0, tileentitysign.lines, 0, 4);
++ // CraftBukkit start
++ Player player = this.server.getPlayer(this.player);
++ int x = packetplayinupdatesign.a().getX();
++ int y = packetplayinupdatesign.a().getY();
++ int z = packetplayinupdatesign.a().getZ();
++ SignChangeEvent event = new SignChangeEvent((org.bukkit.craftbukkit.block.CraftBlock) player.getWorld().getBlockAt(x, y, z), this.server.getPlayer(this.player), org.bukkit.craftbukkit.block.CraftSign.revertComponents(packetplayinupdatesign.b()));
++ 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;
++ }
++ // System.arraycopy(packetplayinupdatesign.b(), 0, tileentitysign.lines, 0, 4);
++ // CraftBukkit end
+ tileentitysign.update();
+ worldserver.notify(blockposition);
+ }
+@@ -847,11 +1758,28 @@
+
+ public void a(PacketPlayInAbilities packetplayinabilities) {
+ PlayerConnectionUtils.ensureMainThread(packetplayinabilities, this, this.player.u());
+- this.player.abilities.isFlying = packetplayinabilities.isFlying() && this.player.abilities.canFly;
++ // 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
+ }
+
+ public void a(PacketPlayInTabComplete packetplayintabcomplete) {
+ PlayerConnectionUtils.ensureMainThread(packetplayintabcomplete, this, this.player.u());
++ // CraftBukkit start
++ if (chatSpamField.addAndGet(this, 20) > 200 && !this.minecraftServer.getPlayerList().isOp(this.player.getProfile())) {
++ this.disconnect("disconnect.spam");
++ return;
++ }
++ // CraftBukkit end
++
+ ArrayList arraylist = Lists.newArrayList();
+ Iterator iterator = this.minecraftServer.tabCompleteCommand(this.player, packetplayintabcomplete.a(), packetplayintabcomplete.b()).iterator();
+
+@@ -891,13 +1819,15 @@
+ itemstack1 = this.player.inventory.getItemInHand();
+ if (itemstack1 != null) {
+ if (itemstack.getItem() == Items.WRITABLE_BOOK && itemstack.getItem() == itemstack1.getItem()) {
+- itemstack1.a("pages", (NBTBase) itemstack.getTag().getList("pages", 8));
++ // itemstack1.a("pages", (NBTBase) itemstack.getTag().getList("pages", 8));
++ CraftEventFactory.handleEditBookEvent(player, itemstack); // CraftBukkit
+ }
+
+ return;
+ }
+ } catch (Exception exception) {
+ PlayerConnection.c.error("Couldn\'t handle book info", exception);
++ this.disconnect("Invalid book data!"); // CraftBukkit
+ return;
+ } finally {
+ packetdataserializer.release();
+@@ -909,27 +1839,31 @@
+
+ try {
+ itemstack = packetdataserializer.i();
+- if (itemstack == null) {
+- return;
+- }
++ if (itemstack != null) {
++ if (!ItemWrittenBook.b(itemstack.getTag())) {
++ throw new IOException("Invalid book tag!");
++ }
+
+- if (!ItemWrittenBook.b(itemstack.getTag())) {
+- throw new IOException("Invalid book tag!");
+- }
++ itemstack1 = this.player.inventory.getItemInHand();
++ if (itemstack1 == null) {
++ return;
++ }
+
+- itemstack1 = this.player.inventory.getItemInHand();
+- if (itemstack1 != null) {
+ if (itemstack.getItem() == Items.WRITTEN_BOOK && itemstack1.getItem() == Items.WRITABLE_BOOK) {
+- itemstack1.a("author", (NBTBase) (new NBTTagString(this.player.getName())));
+- itemstack1.a("title", (NBTBase) (new NBTTagString(itemstack.getTag().getString("title"))));
+- itemstack1.a("pages", (NBTBase) itemstack.getTag().getList("pages", 8));
+- itemstack1.setItem(Items.WRITTEN_BOOK);
++ // CraftBukkit start
++ // itemstack1.a("author", (NBTBase) (new NBTTagString(this.player.getName())));
++ // itemstack1.a("title", (NBTBase) (new NBTTagString(itemstack.getTag().getString("title"))));
++ // itemstack1.a("pages", (NBTBase) itemstack.getTag().getList("pages", 8));
++ // itemstack1.setItem(Items.WRITTEN_BOOK);
++ CraftEventFactory.handleEditBookEvent(player, itemstack);
++ // CraftBukkit end
+ }
+
+ return;
+ }
+ } catch (Exception exception1) {
+ PlayerConnection.c.error("Couldn\'t sign book", exception1);
++ this.disconnect("Invalid book data!"); // CraftBukkit
+ return;
+ } finally {
+ packetdataserializer.release();
+@@ -946,6 +1880,7 @@
+ }
+ } catch (Exception exception2) {
+ PlayerConnection.c.error("Couldn\'t select trade", exception2);
++ this.disconnect("Invalid trade data!"); // CraftBukkit
+ }
+ } else if ("MC|AdvCdm".equals(packetplayincustompayload.a())) {
+ if (!this.minecraftServer.getEnableCommandBlock()) {
+@@ -986,6 +1921,7 @@
+ }
+ } catch (Exception exception3) {
+ PlayerConnection.c.error("Couldn\'t set command block", exception3);
++ this.disconnect("Invalid CommandBlock data!"); // CraftBukkit
+ } finally {
+ packetdataserializer.release();
+ }
+@@ -1011,6 +1947,7 @@
+ }
+ } catch (Exception exception4) {
+ PlayerConnection.c.error("Couldn\'t set beacon", exception4);
++ this.disconnect("Invalid beacon data!"); // CraftBukkit
+ }
+ }
+ } else if ("MC|ItemName".equals(packetplayincustompayload.a()) && this.player.activeContainer instanceof ContainerAnvil) {
+@@ -1026,6 +1963,27 @@
+ containeranvil.a("");
+ }
+ }
++ // CraftBukkit start
++ else if (packetplayincustompayload.a().equals("REGISTER")) {
++ String channels = packetplayincustompayload.b().toString(com.google.common.base.Charsets.UTF_8);
++ for (String channel : channels.split("\0")) {
++ getPlayer().addChannel(channel);
++ }
++ } else if (packetplayincustompayload.a().equals("UNREGISTER")) {
++ String channels = packetplayincustompayload.b().toString(com.google.common.base.Charsets.UTF_8);
++ for (String channel : channels.split("\0")) {
++ getPlayer().removeChannel(channel);
++ }
++ } else {
++ byte[] data = new byte[packetplayincustompayload.b().readableBytes()];
++ packetplayincustompayload.b().readBytes(data);
++ server.getMessenger().dispatchIncomingMessage(player.getBukkitEntity(), packetplayincustompayload.a(), data);
++ }
++ // CraftBukkit end
++ }
+
++ // CraftBukkit start - Add "isDisconnected" method
++ public final boolean isDisconnected() {
++ return !this.player.joining && !NetworkManager.a(this.networkManager).config().isAutoRead();
+ }
+ }