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-rw-r--r--patches/server/0547-Add-PlayerKickEvent-causes.patch533
1 files changed, 533 insertions, 0 deletions
diff --git a/patches/server/0547-Add-PlayerKickEvent-causes.patch b/patches/server/0547-Add-PlayerKickEvent-causes.patch
new file mode 100644
index 0000000000..d5a0964872
--- /dev/null
+++ b/patches/server/0547-Add-PlayerKickEvent-causes.patch
@@ -0,0 +1,533 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <[email protected]>
+Date: Sat, 15 May 2021 20:30:45 -0700
+Subject: [PATCH] Add PlayerKickEvent causes
+
+
+diff --git a/src/main/java/net/minecraft/network/chat/SignedMessageChain.java b/src/main/java/net/minecraft/network/chat/SignedMessageChain.java
+index dbcf183483766f39334d7f7e8336033906625f3f..300929a406905f5ff1ede664d5b99fb0938d4d2e 100644
+--- a/src/main/java/net/minecraft/network/chat/SignedMessageChain.java
++++ b/src/main/java/net/minecraft/network/chat/SignedMessageChain.java
+@@ -40,14 +40,14 @@ public class SignedMessageChain {
+ if (signature == null) {
+ throw new SignedMessageChain.DecodeException(SignedMessageChain.DecodeException.MISSING_PROFILE_KEY);
+ } else if (playerPublicKey.data().hasExpired()) {
+- throw new SignedMessageChain.DecodeException(SignedMessageChain.DecodeException.EXPIRED_PROFILE_KEY);
++ throw new SignedMessageChain.DecodeException(SignedMessageChain.DecodeException.EXPIRED_PROFILE_KEY, org.bukkit.event.player.PlayerKickEvent.Cause.EXPIRED_PROFILE_PUBLIC_KEY); // Paper - kick event causes
+ } else {
+ SignedMessageLink signedMessageLink = SignedMessageChain.this.nextLink;
+ if (signedMessageLink == null) {
+ throw new SignedMessageChain.DecodeException(SignedMessageChain.DecodeException.CHAIN_BROKEN);
+ } else if (body.timeStamp().isBefore(SignedMessageChain.this.lastTimeStamp)) {
+ this.setChainBroken();
+- throw new SignedMessageChain.DecodeException(SignedMessageChain.DecodeException.OUT_OF_ORDER_CHAT);
++ throw new SignedMessageChain.DecodeException(SignedMessageChain.DecodeException.OUT_OF_ORDER_CHAT, org.bukkit.event.player.PlayerKickEvent.Cause.OUT_OF_ORDER_CHAT); // Paper - kick event causes
+ } else {
+ SignedMessageChain.this.lastTimeStamp = body.timeStamp();
+ PlayerChatMessage playerChatMessage = new PlayerChatMessage(signedMessageLink, signature, body, null, FilterMask.PASS_THROUGH);
+@@ -80,8 +80,15 @@ public class SignedMessageChain {
+ static final Component INVALID_SIGNATURE = Component.translatable("chat.disabled.invalid_signature");
+ static final Component OUT_OF_ORDER_CHAT = Component.translatable("chat.disabled.out_of_order_chat");
+
+- public DecodeException(Component message) {
++ // Paper start
++ public final org.bukkit.event.player.PlayerKickEvent.Cause kickCause;
++ public DecodeException(Component message, org.bukkit.event.player.PlayerKickEvent.Cause event) {
+ super(message);
++ this.kickCause = event;
++ }
++ // Paper end
++ public DecodeException(Component message) {
++ this(message, org.bukkit.event.player.PlayerKickEvent.Cause.UNKNOWN); // Paper
+ }
+ }
+
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index e02e57d243bc8bccddcf3e3c40887fb774f5e460..6ad7c34513034c87059f8a0790aea3231dd0d2a9 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
++++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -2288,7 +2288,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+ ServerPlayer entityplayer = (ServerPlayer) iterator.next();
+
+ if (!whitelist.isWhiteListed(entityplayer.getGameProfile()) && !this.getPlayerList().isOp(entityplayer.getGameProfile())) { // Paper - Fix kicking ops when whitelist is reloaded (MC-171420)
+- entityplayer.connection.disconnect(net.kyori.adventure.text.Component.text(org.spigotmc.SpigotConfig.whitelistMessage));
++ entityplayer.connection.disconnect(net.kyori.adventure.text.Component.text(org.spigotmc.SpigotConfig.whitelistMessage), org.bukkit.event.player.PlayerKickEvent.Cause.WHITELIST); // Paper - use configurable message & kick event cause
+ }
+ }
+
+diff --git a/src/main/java/net/minecraft/server/commands/BanIpCommands.java b/src/main/java/net/minecraft/server/commands/BanIpCommands.java
+index b451f98aaa5b694cfd9fadebcb5a4441951e9e87..b23dca02fe85a299d13353706915db2aec3467a6 100644
+--- a/src/main/java/net/minecraft/server/commands/BanIpCommands.java
++++ b/src/main/java/net/minecraft/server/commands/BanIpCommands.java
+@@ -66,7 +66,7 @@ public class BanIpCommands {
+ }
+
+ for (ServerPlayer serverPlayer : list) {
+- serverPlayer.connection.disconnect(Component.translatable("multiplayer.disconnect.ip_banned"));
++ serverPlayer.connection.disconnect(Component.translatable("multiplayer.disconnect.ip_banned"), org.bukkit.event.player.PlayerKickEvent.Cause.IP_BANNED); // Paper - kick event cause
+ }
+
+ return list.size();
+diff --git a/src/main/java/net/minecraft/server/commands/BanPlayerCommands.java b/src/main/java/net/minecraft/server/commands/BanPlayerCommands.java
+index e63a03a419061edc6a1305f6469d2282d960d6d1..be436480873ac914d67dac36061ac087b7389ab1 100644
+--- a/src/main/java/net/minecraft/server/commands/BanPlayerCommands.java
++++ b/src/main/java/net/minecraft/server/commands/BanPlayerCommands.java
+@@ -55,7 +55,7 @@ public class BanPlayerCommands {
+ );
+ ServerPlayer serverPlayer = source.getServer().getPlayerList().getPlayer(gameProfile.getId());
+ if (serverPlayer != null) {
+- serverPlayer.connection.disconnect(Component.translatable("multiplayer.disconnect.banned"));
++ serverPlayer.connection.disconnect(Component.translatable("multiplayer.disconnect.banned"), org.bukkit.event.player.PlayerKickEvent.Cause.BANNED); // Paper - kick event cause
+ }
+ }
+ }
+diff --git a/src/main/java/net/minecraft/server/commands/KickCommand.java b/src/main/java/net/minecraft/server/commands/KickCommand.java
+index d1caaecfdfba1cdeba032f0bc38c06541fa61633..6468b3a25c7527a2fde6899e4812b5cb79ce4b1d 100644
+--- a/src/main/java/net/minecraft/server/commands/KickCommand.java
++++ b/src/main/java/net/minecraft/server/commands/KickCommand.java
+@@ -48,7 +48,7 @@ public class KickCommand {
+
+ for (ServerPlayer serverPlayer : targets) {
+ if (!source.getServer().isSingleplayerOwner(serverPlayer.getGameProfile())) {
+- serverPlayer.connection.disconnect(reason);
++ serverPlayer.connection.disconnect(reason, org.bukkit.event.player.PlayerKickEvent.Cause.KICK_COMMAND); // Paper - kick event cause
+ source.sendSuccess(() -> Component.translatable("commands.kick.success", serverPlayer.getDisplayName(), reason), true);
+ i++;
+ }
+diff --git a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
+index 24bf661e76fb421a8be565d9ea68edf7205254d2..feb529adf2168025c785ab92d95a3246e73c0236 100644
+--- a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
+@@ -128,7 +128,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+ } else if (!this.isSingleplayerOwner()) {
+ // Paper start - This needs to be handled on the main thread for plugins
+ server.submit(() -> {
+- this.disconnect(ServerCommonPacketListenerImpl.TIMEOUT_DISCONNECTION_MESSAGE);
++ this.disconnect(ServerCommonPacketListenerImpl.TIMEOUT_DISCONNECTION_MESSAGE, PlayerKickEvent.Cause.TIMEOUT); // Paper - kick event cause
+ });
+ // Paper end - This needs to be handled on the main thread for plugins
+ }
+@@ -164,7 +164,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+ }
+ } catch (Exception ex) {
+ ServerGamePacketListenerImpl.LOGGER.error("Couldn\'t register custom payload", ex);
+- this.disconnect(Component.literal("Invalid payload REGISTER!"));
++ this.disconnect(Component.literal("Invalid payload REGISTER!"), PlayerKickEvent.Cause.INVALID_PAYLOAD); // Paper - kick event cause
+ }
+ } else if (identifier.equals(ServerCommonPacketListenerImpl.CUSTOM_UNREGISTER)) {
+ try {
+@@ -174,7 +174,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+ }
+ } catch (Exception ex) {
+ ServerGamePacketListenerImpl.LOGGER.error("Couldn\'t unregister custom payload", ex);
+- this.disconnect(Component.literal("Invalid payload UNREGISTER!"));
++ this.disconnect(Component.literal("Invalid payload UNREGISTER!"), PlayerKickEvent.Cause.INVALID_PAYLOAD); // Paper - kick event cause
+ }
+ } else {
+ try {
+@@ -192,7 +192,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+ this.cserver.getMessenger().dispatchIncomingMessage(this.player.getBukkitEntity(), identifier.toString(), data);
+ } catch (Exception ex) {
+ ServerGamePacketListenerImpl.LOGGER.error("Couldn\'t dispatch custom payload", ex);
+- this.disconnect(Component.literal("Invalid custom payload!"));
++ this.disconnect(Component.literal("Invalid custom payload!"), PlayerKickEvent.Cause.INVALID_PAYLOAD); // Paper - kick event cause
+ }
+ }
+
+@@ -208,7 +208,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+ PacketUtils.ensureRunningOnSameThread(packet, this, (BlockableEventLoop) this.server);
+ if (packet.action() == ServerboundResourcePackPacket.Action.DECLINED && this.server.isResourcePackRequired()) {
+ ServerCommonPacketListenerImpl.LOGGER.info("Disconnecting {} due to resource pack {} rejection", this.playerProfile().getName(), packet.id());
+- this.disconnect((Component) Component.translatable("multiplayer.requiredTexturePrompt.disconnect"));
++ this.disconnect((Component) Component.translatable("multiplayer.requiredTexturePrompt.disconnect"), PlayerKickEvent.Cause.RESOURCE_PACK_REJECTION); // Paper - kick event cause
+ }
+ // Paper start - adventure pack callbacks
+ // call the callbacks before the previously-existing event so the event has final say
+@@ -238,7 +238,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+ return;
+ }
+ // CraftBukkit end
+- this.disconnect(ServerCommonPacketListenerImpl.DISCONNECT_UNEXPECTED_QUERY);
++ this.disconnect(ServerCommonPacketListenerImpl.DISCONNECT_UNEXPECTED_QUERY, PlayerKickEvent.Cause.INVALID_COOKIE); // Paper - kick event cause
+ }
+
+ protected void keepConnectionAlive() {
+@@ -250,7 +250,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+
+ if (!this.isSingleplayerOwner() && elapsedTime >= 15000L) { // Paper - use vanilla's 15000L between keep alive packets
+ if (this.keepAlivePending && !this.processedDisconnect && elapsedTime >= KEEPALIVE_LIMIT) { // Paper - check keepalive limit, don't fire if already disconnected
+- this.disconnect(ServerCommonPacketListenerImpl.TIMEOUT_DISCONNECTION_MESSAGE);
++ this.disconnect(ServerCommonPacketListenerImpl.TIMEOUT_DISCONNECTION_MESSAGE, PlayerKickEvent.Cause.TIMEOUT); // Paper - kick event cause
+ } else if (this.checkIfClosed(currentTime)) { // Paper
+ this.keepAlivePending = true;
+ this.keepAliveTime = currentTime;
+@@ -266,7 +266,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+ private boolean checkIfClosed(long time) {
+ if (this.closed) {
+ if (time - this.closedListenerTime >= 15000L) {
+- this.disconnect(ServerCommonPacketListenerImpl.TIMEOUT_DISCONNECTION_MESSAGE);
++ this.disconnect(ServerCommonPacketListenerImpl.TIMEOUT_DISCONNECTION_MESSAGE, PlayerKickEvent.Cause.TIMEOUT); // Paper - kick event cause
+ }
+
+ return false;
+@@ -318,15 +318,25 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+
+ // Paper start - adventure
+ public void disconnect(final net.kyori.adventure.text.Component reason) {
+- this.disconnect(io.papermc.paper.adventure.PaperAdventure.asVanilla(reason));
++ this.disconnect(reason, PlayerKickEvent.Cause.UNKNOWN);
++ }
++ public void disconnect(final net.kyori.adventure.text.Component reason, PlayerKickEvent.Cause cause) {
++ this.disconnect(io.papermc.paper.adventure.PaperAdventure.asVanilla(reason), cause);
++ // Paper end - kick event causes
+ }
+ // Paper end - adventure
+
++ @Deprecated @io.papermc.paper.annotation.DoNotUse // Paper - kick event causes
+ public void disconnect(Component reason) {
+- this.disconnect(new DisconnectionDetails(reason));
++ // Paper start - kick event causes
++ this.disconnect(reason, PlayerKickEvent.Cause.UNKNOWN);
++ }
++ public void disconnect(final Component reason, PlayerKickEvent.Cause cause) {
++ this.disconnect(new DisconnectionDetails(reason), cause);
++ // Paper end - kick event causes
+ }
+
+- public void disconnect(DisconnectionDetails disconnectionInfo) {
++ public void disconnect(DisconnectionDetails disconnectionInfo, PlayerKickEvent.Cause cause) { // Paper - kick event cause
+ // CraftBukkit start - fire PlayerKickEvent
+ if (this.processedDisconnect) {
+ return;
+@@ -335,7 +345,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+ Waitable waitable = new Waitable() {
+ @Override
+ protected Object evaluate() {
+- ServerCommonPacketListenerImpl.this.disconnect(disconnectionInfo);
++ ServerCommonPacketListenerImpl.this.disconnect(disconnectionInfo, cause); // Paper - kick event causes
+ return null;
+ }
+ };
+@@ -354,7 +364,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
+
+ net.kyori.adventure.text.Component leaveMessage = net.kyori.adventure.text.Component.translatable("multiplayer.player.left", net.kyori.adventure.text.format.NamedTextColor.YELLOW, io.papermc.paper.configuration.GlobalConfiguration.get().messages.useDisplayNameInQuitMessage ? this.player.getBukkitEntity().displayName() : net.kyori.adventure.text.Component.text(this.player.getScoreboardName())); // Paper - Adventure
+
+- PlayerKickEvent event = new PlayerKickEvent(this.player.getBukkitEntity(), io.papermc.paper.adventure.PaperAdventure.asAdventure(disconnectionInfo.reason()), leaveMessage); // Paper - adventure
++ PlayerKickEvent event = new PlayerKickEvent(this.player.getBukkitEntity(), io.papermc.paper.adventure.PaperAdventure.asAdventure(disconnectionInfo.reason()), leaveMessage, cause); // Paper - adventure & kick event causes
+
+ if (this.cserver.getServer().isRunning()) {
+ this.cserver.getPluginManager().callEvent(event);
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index ada5016ee354e799a8241a0706ea04e236efd1eb..70b215dfbe53bd475192ca1d021032c8fba97228 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
++++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -349,7 +349,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ if (this.clientIsFloating && !this.player.isSleeping() && !this.player.isPassenger() && !this.player.isDeadOrDying()) {
+ if (++this.aboveGroundTickCount > this.getMaximumFlyingTicks(this.player)) {
+ ServerGamePacketListenerImpl.LOGGER.warn("{} was kicked for floating too long!", this.player.getName().getString());
+- this.disconnect(io.papermc.paper.configuration.GlobalConfiguration.get().messages.kick.flyingPlayer); // Paper - use configurable kick message
++ this.disconnect(io.papermc.paper.configuration.GlobalConfiguration.get().messages.kick.flyingPlayer, org.bukkit.event.player.PlayerKickEvent.Cause.FLYING_PLAYER); // Paper - use configurable kick message & kick event cause
+ return;
+ }
+ } else {
+@@ -368,7 +368,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ if (this.clientVehicleIsFloating && this.lastVehicle.getControllingPassenger() == this.player) {
+ if (++this.aboveGroundVehicleTickCount > this.getMaximumFlyingTicks(this.lastVehicle)) {
+ ServerGamePacketListenerImpl.LOGGER.warn("{} was kicked for floating a vehicle too long!", this.player.getName().getString());
+- this.disconnect(io.papermc.paper.configuration.GlobalConfiguration.get().messages.kick.flyingVehicle); // Paper - use configurable kick message
++ this.disconnect(io.papermc.paper.configuration.GlobalConfiguration.get().messages.kick.flyingVehicle, org.bukkit.event.player.PlayerKickEvent.Cause.FLYING_VEHICLE); // Paper - use configurable kick message & kick event cause
+ return;
+ }
+ } else {
+@@ -399,7 +399,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+
+ if (this.player.getLastActionTime() > 0L && this.server.getPlayerIdleTimeout() > 0 && Util.getMillis() - this.player.getLastActionTime() > (long) this.server.getPlayerIdleTimeout() * 1000L * 60L) {
+ this.player.resetLastActionTime(); // CraftBukkit - SPIGOT-854
+- this.disconnect((Component) Component.translatable("multiplayer.disconnect.idling"));
++ this.disconnect((Component) Component.translatable("multiplayer.disconnect.idling"), org.bukkit.event.player.PlayerKickEvent.Cause.IDLING); // Paper - kick event cause
+ }
+
+ }
+@@ -481,7 +481,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ public void handleMoveVehicle(ServerboundMoveVehiclePacket packet) {
+ PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
+ if (ServerGamePacketListenerImpl.containsInvalidValues(packet.getX(), packet.getY(), packet.getZ(), packet.getYRot(), packet.getXRot())) {
+- this.disconnect((Component) Component.translatable("multiplayer.disconnect.invalid_vehicle_movement"));
++ this.disconnect((Component) Component.translatable("multiplayer.disconnect.invalid_vehicle_movement"), org.bukkit.event.player.PlayerKickEvent.Cause.INVALID_VEHICLE_MOVEMENT); // Paper - kick event cause
+ } else if (!this.updateAwaitingTeleport()) {
+ Entity entity = this.player.getRootVehicle();
+
+@@ -686,7 +686,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
+ if (packet.getId() == this.awaitingTeleport) {
+ if (this.awaitingPositionFromClient == null) {
+- this.disconnect((Component) Component.translatable("multiplayer.disconnect.invalid_player_movement"));
++ this.disconnect((Component) Component.translatable("multiplayer.disconnect.invalid_player_movement"), org.bukkit.event.player.PlayerKickEvent.Cause.INVALID_PLAYER_MOVEMENT); // Paper - kick event cause
+ return;
+ }
+
+@@ -744,7 +744,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ // PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel()); // Paper - AsyncTabCompleteEvent; run this async
+ // CraftBukkit start
+ if (this.chatSpamTickCount.addAndGet(io.papermc.paper.configuration.GlobalConfiguration.get().spamLimiter.tabSpamIncrement) > io.papermc.paper.configuration.GlobalConfiguration.get().spamLimiter.tabSpamLimit && !this.server.getPlayerList().isOp(this.player.getGameProfile())) { // Paper - configurable tab spam limits
+- this.disconnect(Component.translatable("disconnect.spam"));
++ this.disconnect(Component.translatable("disconnect.spam"), org.bukkit.event.player.PlayerKickEvent.Cause.SPAM); // Paper - Kick event cause
+ return;
+ }
+ // CraftBukkit end
+@@ -909,7 +909,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ // Paper start - validate pick item position
+ if (!(packet.getSlot() >= 0 && packet.getSlot() < this.player.getInventory().items.size())) {
+ ServerGamePacketListenerImpl.LOGGER.warn("{} tried to set an invalid carried item", this.player.getName().getString());
+- this.disconnect(Component.literal("Invalid hotbar selection (Hacking?)"));
++ this.disconnect(Component.literal("Invalid hotbar selection (Hacking?)"), org.bukkit.event.player.PlayerKickEvent.Cause.ILLEGAL_ACTION); // Paper - kick event cause
+ return;
+ }
+ this.player.getInventory().pickSlot(packet.getSlot()); // Paper - Diff above if changed
+@@ -1088,7 +1088,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ int byteLength = testString.getBytes(java.nio.charset.StandardCharsets.UTF_8).length;
+ if (byteLength > 256 * 4) {
+ ServerGamePacketListenerImpl.LOGGER.warn(this.player.getScoreboardName() + " tried to send a book with with a page too large!");
+- this.disconnect(Component.literal("Book too large!"));
++ this.disconnect(Component.literal("Book too large!"), org.bukkit.event.player.PlayerKickEvent.Cause.ILLEGAL_ACTION); // Paper - kick event cause
+ return;
+ }
+ byteTotal += byteLength;
+@@ -1111,14 +1111,14 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+
+ if (byteTotal > byteAllowed) {
+ ServerGamePacketListenerImpl.LOGGER.warn(this.player.getScoreboardName() + " tried to send too large of a book. Book Size: " + byteTotal + " - Allowed: "+ byteAllowed + " - Pages: " + pageList.size());
+- this.disconnect(Component.literal("Book too large!"));
++ this.disconnect(Component.literal("Book too large!"), org.bukkit.event.player.PlayerKickEvent.Cause.ILLEGAL_ACTION); // Paper - kick event cause
+ return;
+ }
+ }
+ // Paper end - Book size limits
+ // CraftBukkit start
+ if (this.lastBookTick + 20 > MinecraftServer.currentTick) {
+- this.disconnect(Component.literal("Book edited too quickly!"));
++ this.disconnect(Component.literal("Book edited too quickly!"), org.bukkit.event.player.PlayerKickEvent.Cause.ILLEGAL_ACTION); // Paper - kick event cause
+ return;
+ }
+ this.lastBookTick = MinecraftServer.currentTick;
+@@ -1230,7 +1230,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ public void handleMovePlayer(ServerboundMovePlayerPacket packet) {
+ PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
+ if (ServerGamePacketListenerImpl.containsInvalidValues(packet.getX(0.0D), packet.getY(0.0D), packet.getZ(0.0D), packet.getYRot(0.0F), packet.getXRot(0.0F))) {
+- this.disconnect((Component) Component.translatable("multiplayer.disconnect.invalid_player_movement"));
++ this.disconnect((Component) Component.translatable("multiplayer.disconnect.invalid_player_movement"), org.bukkit.event.player.PlayerKickEvent.Cause.INVALID_PLAYER_MOVEMENT); // Paper - kick event cause
+ } else {
+ ServerLevel worldserver = this.player.serverLevel();
+
+@@ -1668,7 +1668,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ this.dropCount++;
+ if (this.dropCount >= 20) {
+ ServerGamePacketListenerImpl.LOGGER.warn(this.player.getScoreboardName() + " dropped their items too quickly!");
+- this.disconnect(Component.literal("You dropped your items too quickly (Hacking?)"));
++ this.disconnect(Component.literal("You dropped your items too quickly (Hacking?)"), org.bukkit.event.player.PlayerKickEvent.Cause.ILLEGAL_ACTION); // Paper - kick event cause
+ return;
+ }
+ }
+@@ -1956,7 +1956,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ this.player.resetLastActionTime();
+ } else {
+ ServerGamePacketListenerImpl.LOGGER.warn("{} tried to set an invalid carried item", this.player.getName().getString());
+- this.disconnect(Component.literal("Invalid hotbar selection (Hacking?)")); // CraftBukkit
++ this.disconnect(Component.literal("Invalid hotbar selection (Hacking?)"), org.bukkit.event.player.PlayerKickEvent.Cause.ILLEGAL_ACTION); // CraftBukkit // Paper - kick event cause
+ }
+ }
+
+@@ -2154,7 +2154,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+
+ private void tryHandleChat(String s, Runnable runnable, boolean sync) { // CraftBukkit
+ if (ServerGamePacketListenerImpl.isChatMessageIllegal(s)) {
+- this.disconnect((Component) Component.translatable("multiplayer.disconnect.illegal_characters"));
++ this.disconnect((Component) Component.translatable("multiplayer.disconnect.illegal_characters"), org.bukkit.event.player.PlayerKickEvent.Cause.ILLEGAL_CHARACTERS); // Paper
+ } else if (this.player.isRemoved() || this.player.getChatVisibility() == ChatVisiblity.HIDDEN) { // CraftBukkit - dead men tell no tales
+ this.send(new ClientboundSystemChatPacket(Component.translatable("chat.disabled.options").withStyle(ChatFormatting.RED), false));
+ } else {
+@@ -2177,7 +2177,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+
+ if (optional.isEmpty()) {
+ ServerGamePacketListenerImpl.LOGGER.warn("Failed to validate message acknowledgements from {}", this.player.getName().getString());
+- this.disconnect(ServerGamePacketListenerImpl.CHAT_VALIDATION_FAILED);
++ this.disconnect(ServerGamePacketListenerImpl.CHAT_VALIDATION_FAILED, org.bukkit.event.player.PlayerKickEvent.Cause.CHAT_VALIDATION_FAILED); // Paper - kick event causes
+ }
+
+ return optional;
+@@ -2363,7 +2363,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ // this.chatSpamTickCount += 20;
+ if (this.chatSpamTickCount.addAndGet(20) > 200 && !this.server.getPlayerList().isOp(this.player.getGameProfile()) && !this.server.isSingleplayerOwner(this.player.getGameProfile())) {
+ // CraftBukkit end
+- this.disconnect((Component) Component.translatable("disconnect.spam"));
++ this.disconnect((Component) Component.translatable("disconnect.spam"), org.bukkit.event.player.PlayerKickEvent.Cause.SPAM); // Paper - kick event cause
+ }
+
+ }
+@@ -2375,7 +2375,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ synchronized (this.lastSeenMessages) {
+ if (!this.lastSeenMessages.applyOffset(packet.offset())) {
+ ServerGamePacketListenerImpl.LOGGER.warn("Failed to validate message acknowledgements from {}", this.player.getName().getString());
+- this.disconnect(ServerGamePacketListenerImpl.CHAT_VALIDATION_FAILED);
++ this.disconnect(ServerGamePacketListenerImpl.CHAT_VALIDATION_FAILED, org.bukkit.event.player.PlayerKickEvent.Cause.CHAT_VALIDATION_FAILED); // Paper - kick event causes
+ }
+
+ }
+@@ -2523,7 +2523,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ }
+
+ if (i > 4096) {
+- this.disconnect((Component) Component.translatable("multiplayer.disconnect.too_many_pending_chats"));
++ this.disconnect((Component) Component.translatable("multiplayer.disconnect.too_many_pending_chats"), org.bukkit.event.player.PlayerKickEvent.Cause.TOO_MANY_PENDING_CHATS); // Paper - kick event cause
+ }
+
+ }
+@@ -2581,7 +2581,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ // Spigot Start
+ if ( entity == this.player && !this.player.isSpectator() )
+ {
+- this.disconnect( Component.literal( "Cannot interact with self!" ) );
++ this.disconnect( Component.literal( "Cannot interact with self!" ), org.bukkit.event.player.PlayerKickEvent.Cause.SELF_INTERACTION ); // Paper - kick event cause
+ return;
+ }
+ // Spigot End
+@@ -2695,7 +2695,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ }
+ }
+
+- ServerGamePacketListenerImpl.this.disconnect((Component) Component.translatable("multiplayer.disconnect.invalid_entity_attacked"));
++ ServerGamePacketListenerImpl.this.disconnect((Component) Component.translatable("multiplayer.disconnect.invalid_entity_attacked"), org.bukkit.event.player.PlayerKickEvent.Cause.INVALID_ENTITY_ATTACKED); // Paper - add cause
+ ServerGamePacketListenerImpl.LOGGER.warn("Player {} tried to attack an invalid entity", ServerGamePacketListenerImpl.this.player.getName().getString());
+ }
+ });
+@@ -3092,7 +3092,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ // Paper start - auto recipe limit
+ if (!org.bukkit.Bukkit.isPrimaryThread()) {
+ if (this.recipeSpamPackets.addAndGet(io.papermc.paper.configuration.GlobalConfiguration.get().spamLimiter.recipeSpamIncrement) > io.papermc.paper.configuration.GlobalConfiguration.get().spamLimiter.recipeSpamLimit) {
+- this.disconnect(net.minecraft.network.chat.Component.translatable("disconnect.spam"));
++ this.disconnect(net.minecraft.network.chat.Component.translatable("disconnect.spam"), org.bukkit.event.player.PlayerKickEvent.Cause.SPAM); // Paper - kick event cause
+ return;
+ }
+ }
+@@ -3334,7 +3334,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+
+ if (!Objects.equals(profilepublickey_a, profilepublickey_a1)) {
+ if (profilepublickey_a != null && profilepublickey_a1.expiresAt().isBefore(profilepublickey_a.expiresAt())) {
+- this.disconnect(ProfilePublicKey.EXPIRED_PROFILE_PUBLIC_KEY);
++ this.disconnect(ProfilePublicKey.EXPIRED_PROFILE_PUBLIC_KEY, org.bukkit.event.player.PlayerKickEvent.Cause.EXPIRED_PROFILE_PUBLIC_KEY); // Paper - kick event causes
+ } else {
+ try {
+ SignatureValidator signaturevalidator = this.server.getProfileKeySignatureValidator();
+@@ -3347,7 +3347,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ this.resetPlayerChatState(remotechatsession_a.validate(this.player.getGameProfile(), signaturevalidator));
+ } catch (ProfilePublicKey.ValidationException profilepublickey_b) {
+ ServerGamePacketListenerImpl.LOGGER.error("Failed to validate profile key: {}", profilepublickey_b.getMessage());
+- this.disconnect(profilepublickey_b.getComponent());
++ this.disconnect(profilepublickey_b.getComponent(), profilepublickey_b.kickCause); // Paper - kick event causes
+ }
+
+ }
+diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
+index 7ef760cb1c88f557947e9b88409a2935666f86f0..0474b88416e0d016da38909196d32fe992b37d00 100644
+--- a/src/main/java/net/minecraft/server/players/PlayerList.java
++++ b/src/main/java/net/minecraft/server/players/PlayerList.java
+@@ -675,7 +675,7 @@ public abstract class PlayerList {
+ while (iterator.hasNext()) {
+ entityplayer = (ServerPlayer) iterator.next();
+ this.save(entityplayer); // CraftBukkit - Force the player's inventory to be saved
+- entityplayer.connection.disconnect(Component.translatable("multiplayer.disconnect.duplicate_login"));
++ entityplayer.connection.disconnect(Component.translatable("multiplayer.disconnect.duplicate_login"), org.bukkit.event.player.PlayerKickEvent.Cause.DUPLICATE_LOGIN); // Paper - kick event cause
+ }
+
+ // Instead of kicking then returning, we need to store the kick reason
+@@ -1272,7 +1272,7 @@ public abstract class PlayerList {
+ // Paper end
+ // CraftBukkit start - disconnect safely
+ for (ServerPlayer player : this.players) {
+- if (isRestarting) player.connection.disconnect(net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserialize(org.spigotmc.SpigotConfig.restartMessage)); else // Paper
++ if (isRestarting) player.connection.disconnect(net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserialize(org.spigotmc.SpigotConfig.restartMessage), org.bukkit.event.player.PlayerKickEvent.Cause.UNKNOWN); else // Paper - kick event cause (cause is never used here)
+ player.connection.disconnect(java.util.Objects.requireNonNullElseGet(this.server.server.shutdownMessage(), net.kyori.adventure.text.Component::empty)); // CraftBukkit - add custom shutdown message // Paper - Adventure
+ }
+ // CraftBukkit end
+diff --git a/src/main/java/net/minecraft/world/entity/player/ProfilePublicKey.java b/src/main/java/net/minecraft/world/entity/player/ProfilePublicKey.java
+index f472dea0bd4f834c0c8f0aa59ae7cdae082b14af..2fa51c3a70f43cd23b8f494fc643d66cecfda7d2 100644
+--- a/src/main/java/net/minecraft/world/entity/player/ProfilePublicKey.java
++++ b/src/main/java/net/minecraft/world/entity/player/ProfilePublicKey.java
+@@ -24,7 +24,7 @@ public record ProfilePublicKey(ProfilePublicKey.Data data) {
+
+ public static ProfilePublicKey createValidated(SignatureValidator servicesSignatureVerifier, UUID playerUuid, ProfilePublicKey.Data publicKeyData) throws ProfilePublicKey.ValidationException {
+ if (!publicKeyData.validateSignature(servicesSignatureVerifier, playerUuid)) {
+- throw new ProfilePublicKey.ValidationException(INVALID_SIGNATURE);
++ throw new ProfilePublicKey.ValidationException(INVALID_SIGNATURE, org.bukkit.event.player.PlayerKickEvent.Cause.INVALID_PUBLIC_KEY_SIGNATURE); // Paper - kick event causes
+ } else {
+ return new ProfilePublicKey(publicKeyData);
+ }
+@@ -88,8 +88,16 @@ public record ProfilePublicKey(ProfilePublicKey.Data data) {
+ }
+
+ public static class ValidationException extends ThrowingComponent {
++ public final org.bukkit.event.player.PlayerKickEvent.Cause kickCause; // Paper
++ @io.papermc.paper.annotation.DoNotUse @Deprecated // Paper
+ public ValidationException(Component messageText) {
++ // Paper start
++ this(messageText, org.bukkit.event.player.PlayerKickEvent.Cause.UNKNOWN);
++ }
++ public ValidationException(Component messageText, org.bukkit.event.player.PlayerKickEvent.Cause kickCause) {
++ // Paper end
+ super(messageText);
++ this.kickCause = kickCause; // Paper
+ }
+ }
+ }
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+index 6aa9a31b2bba086265c0e83c4ea9181540a0a5f6..8f78f4879dfc46d2214243b927e0cff0257b7692 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+@@ -635,7 +635,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+ org.spigotmc.AsyncCatcher.catchOp("player kick"); // Spigot
+ if (this.getHandle().connection == null) return;
+
+- this.getHandle().connection.disconnect(CraftChatMessage.fromStringOrEmpty(message, true));
++ this.getHandle().connection.disconnect(CraftChatMessage.fromStringOrEmpty(message, true), org.bukkit.event.player.PlayerKickEvent.Cause.PLUGIN); // Paper - kick event cause
+ }
+
+ // Paper start
+@@ -647,10 +647,15 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+
+ @Override
+ public void kick(final net.kyori.adventure.text.Component message) {
++ kick(message, org.bukkit.event.player.PlayerKickEvent.Cause.PLUGIN);
++ }
++
++ @Override
++ public void kick(net.kyori.adventure.text.Component message, org.bukkit.event.player.PlayerKickEvent.Cause cause) {
+ org.spigotmc.AsyncCatcher.catchOp("player kick");
+ final ServerGamePacketListenerImpl connection = this.getHandle().connection;
+ if (connection != null) {
+- connection.disconnect(message == null ? net.kyori.adventure.text.Component.empty() : message);
++ connection.disconnect(message == null ? net.kyori.adventure.text.Component.empty() : message, cause);
+ }
+ }
+
+@@ -709,7 +714,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+
+ // Paper start - Improve chat handling
+ if (ServerGamePacketListenerImpl.isChatMessageIllegal(msg)) {
+- this.getHandle().connection.disconnect(Component.translatable("multiplayer.disconnect.illegal_characters"));
++ this.getHandle().connection.disconnect(Component.translatable("multiplayer.disconnect.illegal_characters"), org.bukkit.event.player.PlayerKickEvent.Cause.ILLEGAL_CHARACTERS); // Paper - kick event causes
+ } else {
+ if (msg.startsWith("/")) {
+ this.getHandle().connection.handleCommand(msg);
+diff --git a/src/main/java/org/spigotmc/RestartCommand.java b/src/main/java/org/spigotmc/RestartCommand.java
+index 824c4ad135ea5177f416687c7042639ed126b70b..39e56b95aaafbcd8ebe68fdefaace83702e9510d 100644
+--- a/src/main/java/org/spigotmc/RestartCommand.java
++++ b/src/main/java/org/spigotmc/RestartCommand.java
+@@ -74,7 +74,7 @@ public class RestartCommand extends Command
+ // Kick all players
+ for ( ServerPlayer p : com.google.common.collect.ImmutableList.copyOf( MinecraftServer.getServer().getPlayerList().players ) )
+ {
+- p.connection.disconnect( CraftChatMessage.fromStringOrEmpty( SpigotConfig.restartMessage, true ) );
++ p.connection.disconnect( CraftChatMessage.fromStringOrEmpty( SpigotConfig.restartMessage, true ), org.bukkit.event.player.PlayerKickEvent.Cause.RESTART_COMMAND); // Paper - kick event reason (cause is never used))
+ }
+ // Give the socket a chance to send the packets
+ try