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Add PlayerKickEvent causes

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This commit is contained in:
Jake Potrebic 2021-05-15 20:30:45 -07:00
parent e8cb0ac761
commit 75225eb102
12 changed files with 267 additions and 65 deletions
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37
paper-server/patches/sources/net/minecraft/network/chat/SignedMessageChain.java.patch Normal file
View file

@ -0,0 +1,37 @@
--- a/net/minecraft/network/chat/SignedMessageChain.java
+++ b/net/minecraft/network/chat/SignedMessageChain.java
@@ -40,14 +40,14 @@
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);
@@ -80,9 +80,16 @@
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
+ }
}
@FunctionalInterface

2
paper-server/patches/sources/net/minecraft/server/MinecraftServer.java.patch
View file

@ -1249,7 +1249,7 @@
- if (!whitelist.isWhiteListed(entityplayer.getGameProfile())) {
- entityplayer.connection.disconnect((Component) Component.translatable("multiplayer.disconnect.not_whitelisted"));
+ 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
}
}

11
paper-server/patches/sources/net/minecraft/server/commands/BanIpCommands.java.patch Normal file
View file

@ -0,0 +1,11 @@
--- a/net/minecraft/server/commands/BanIpCommands.java
+++ b/net/minecraft/server/commands/BanIpCommands.java
@@ -66,7 +66,7 @@
}
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();

11
paper-server/patches/sources/net/minecraft/server/commands/BanPlayerCommands.java.patch Normal file
View file

@ -0,0 +1,11 @@
--- a/net/minecraft/server/commands/BanPlayerCommands.java
+++ b/net/minecraft/server/commands/BanPlayerCommands.java
@@ -55,7 +55,7 @@
);
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
}
}
}

11
paper-server/patches/sources/net/minecraft/server/commands/KickCommand.java.patch Normal file
View file

@ -0,0 +1,11 @@
--- a/net/minecraft/server/commands/KickCommand.java
+++ b/net/minecraft/server/commands/KickCommand.java
@@ -48,7 +48,7 @@
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++;
}

64
paper-server/patches/sources/net/minecraft/server/network/ServerCommonPacketListenerImpl.java.patch
View file

@ -58,8 +58,8 @@
+ }
+
+ @Override
+ public void kickPlayer(Component reason) {
+ this.disconnect(reason);
+ public void kickPlayer(Component reason, org.bukkit.event.player.PlayerKickEvent.Cause cause) { // Paper - kick event causes
+ this.disconnect(reason, cause); // Paper - kick event causes
+ }
+ // CraftBukkit end
private static final Logger LOGGER = LogUtils.getLogger();
@ -125,13 +125,13 @@
- this.disconnect(ServerCommonPacketListenerImpl.TIMEOUT_DISCONNECTION_MESSAGE);
+ // 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
}
}
@@ -94,9 +150,71 @@
@@ -94,38 +150,127 @@
@Override
public void handlePong(ServerboundPongPacket packet) {}
@ -162,7 +162,7 @@
+ }
+ } 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 {
@ -172,7 +172,7 @@
+ }
+ } 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 {
@ -190,23 +190,24 @@
+ 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
+ }
+ }
+
+ }
+
+ public final boolean isDisconnected() {
+ return (!this.player.joining && !this.connection.isConnected()) || this.processedDisconnect; // Paper - Fix duplication bugs
+ }
+ // CraftBukkit end
+
@Override
public void handleResourcePackResponse(ServerboundResourcePackPacket packet) {
PacketUtils.ensureRunningOnSameThread(packet, this, (BlockableEventLoop) this.server);
@@ -104,28 +222,55 @@
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"));
+ 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
@ -230,13 +231,14 @@
@Override
public void handleCookieResponse(ServerboundCookieResponsePacket packet) {
- this.disconnect(ServerCommonPacketListenerImpl.DISCONNECT_UNEXPECTED_QUERY);
+ // CraftBukkit start
+ PacketUtils.ensureRunningOnSameThread(packet, this, (BlockableEventLoop) this.server);
+ if (this.player.getBukkitEntity().handleCookieResponse(packet)) {
+ 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() {
@ -249,10 +251,11 @@
- if (!this.isSingleplayerOwner() && i - this.keepAliveTime >= 15000L) {
- if (this.keepAlivePending) {
- this.disconnect(ServerCommonPacketListenerImpl.TIMEOUT_DISCONNECTION_MESSAGE);
- } else if (this.checkIfClosed(i)) {
+ 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);
- } else if (this.checkIfClosed(i)) {
+ this.disconnect(ServerCommonPacketListenerImpl.TIMEOUT_DISCONNECTION_MESSAGE, PlayerKickEvent.Cause.TIMEOUT); // Paper - kick event cause
+ } else if (this.checkIfClosed(currentTime)) { // Paper
this.keepAlivePending = true;
- this.keepAliveTime = i;
@ -266,6 +269,15 @@
Profiler.get().pop();
}
@@ -133,7 +278,7 @@
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;
@@ -156,6 +301,14 @@
}
@ -281,23 +293,35 @@
if (packet.isTerminal()) {
this.close();
}
@@ -175,20 +328,73 @@
@@ -175,20 +328,83 @@
}
}
+ // 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));
- 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) {
- this.connection.send(new ClientboundDisconnectPacket(disconnectionInfo.reason()), PacketSendListener.thenRun(() -> {
- this.connection.disconnect(disconnectionInfo);
+ public void disconnect(DisconnectionDetails disconnectionInfo, PlayerKickEvent.Cause cause) { // Paper - kick event cause
+ // CraftBukkit start - fire PlayerKickEvent
+ if (this.processedDisconnect) {
+ return;
@ -306,7 +330,7 @@
+ Waitable waitable = new Waitable() {
+ @Override
+ protected Object evaluate() {
+ ServerCommonPacketListenerImpl.this.disconnect(disconnectionInfo);
+ ServerCommonPacketListenerImpl.this.disconnect(disconnectionInfo, cause); // Paper - kick event causes
+ return null;
+ }
+ };
@ -325,7 +349,7 @@
+
+ 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);

145
paper-server/patches/sources/net/minecraft/server/network/ServerGamePacketListenerImpl.java.patch
View file

@ -48,7 +48,7 @@
import net.minecraft.world.level.GameRules;
import net.minecraft.world.level.GameType;
import net.minecraft.world.level.Level;
@@ -192,11 +196,72 @@
@@ -192,12 +196,73 @@
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.phys.AABB;
import net.minecraft.world.phys.BlockHitResult;
@ -59,7 +59,7 @@
import net.minecraft.world.phys.shapes.VoxelShape;
+import org.bukkit.NamespacedKey;
import org.slf4j.Logger;
+
+// CraftBukkit start
+import io.papermc.paper.adventure.ChatProcessor; // Paper
+import io.papermc.paper.adventure.PaperAdventure; // Paper
@ -118,9 +118,10 @@
+import org.bukkit.inventory.InventoryView;
+import org.bukkit.inventory.SmithingInventory;
+// CraftBukkit end
+
public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl implements ServerGamePacketListener, ServerPlayerConnection, TickablePacketListener {
static final Logger LOGGER = LogUtils.getLogger();
@@ -212,7 +277,9 @@
private int tickCount;
private int ackBlockChangesUpTo = -1;
@ -175,7 +176,7 @@
if (++this.aboveGroundTickCount > this.getMaximumFlyingTicks(this.player)) {
ServerGamePacketListenerImpl.LOGGER.warn("{} was kicked for floating too long!", this.player.getName().getString());
- this.disconnect((Component) Component.translatable("multiplayer.disconnect.flying"));
+ 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 {
@ -184,11 +185,11 @@
if (++this.aboveGroundVehicleTickCount > this.getMaximumFlyingTicks(this.lastVehicle)) {
ServerGamePacketListenerImpl.LOGGER.warn("{} was kicked for floating a vehicle too long!", this.player.getName().getString());
- this.disconnect((Component) Component.translatable("multiplayer.disconnect.flying"));
+ 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 {
@@ -311,8 +395,11 @@
@@ -311,9 +395,12 @@
this.keepConnectionAlive();
this.chatSpamThrottler.tick();
@ -196,10 +197,12 @@
+ this.recipeSpamPackets.tick(); // Paper - auto recipe limit
this.dropSpamThrottler.tick();
if (this.player.getLastActionTime() > 0L && this.server.getPlayerIdleTimeout() > 0 && Util.getMillis() - this.player.getLastActionTime() > (long) this.server.getPlayerIdleTimeout() * 1000L * 60L) {
- this.disconnect((Component) Component.translatable("multiplayer.disconnect.idling"));
+ 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
}
}
@@ -376,6 +463,12 @@
@Override
public void handlePlayerInput(ServerboundPlayerInputPacket packet) {
@ -213,7 +216,14 @@
this.player.setLastClientInput(packet.input());
}
@@ -401,21 +494,73 @@
@@ -395,27 +488,79 @@
public void handleMoveVehicle(ServerboundMoveVehiclePacket packet) {
PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
if (ServerGamePacketListenerImpl.containsInvalidValues(packet.position().x(), packet.position().y(), packet.position().z(), packet.yRot(), packet.xRot())) {
- 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() && this.player.hasClientLoaded()) {
Entity entity = this.player.getRootVehicle();
if (entity != this.player && entity.getControllingPassenger() == this.player && entity == this.lastVehicle) {
ServerLevel worldserver = this.player.serverLevel();
@ -308,7 +318,7 @@
boolean flag1 = entity.verticalCollisionBelow;
if (entity instanceof LivingEntity) {
@@ -449,19 +594,72 @@
@@ -449,20 +594,73 @@
d10 = d6 * d6 + d7 * d7 + d8 * d8;
boolean flag2 = false;
@ -327,8 +337,8 @@
+ this.player.absMoveTo(d0, d1, d2, this.player.getYRot(), this.player.getXRot()); // CraftBukkit
this.send(ClientboundMoveVehiclePacket.fromEntity(entity));
return;
+ }
+
}
+ // CraftBukkit start - fire PlayerMoveEvent
+ Player player = this.getCraftPlayer();
+ if (!this.hasMoved) {
@ -377,12 +387,18 @@
+ this.justTeleported = false;
+ return;
+ }
}
+ }
+ // CraftBukkit end
+
this.player.serverLevel().getChunkSource().move(this.player);
entity.recordMovementThroughBlocks(new Vec3(d0, d1, d2), entity.position());
@@ -493,12 +691,13 @@
Vec3 vec3d = new Vec3(entity.getX() - d0, entity.getY() - d1, entity.getZ() - d2);
@@ -489,16 +687,17 @@
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;
}
@ -419,7 +435,7 @@
+ // PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel()); // Paper - AsyncTabCompleteEvent; run this async
+ // CraftBukkit start
+ if (!this.tabSpamThrottler.isIncrementAndUnderThreshold() && !this.server.getPlayerList().isOp(this.player.getGameProfile()) && !this.server.isSingleplayerOwner(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
@ -568,14 +584,14 @@
+
+ if (byteTotal > byteAllowed) {
+ ServerGamePacketListenerImpl.LOGGER.warn("{} tried to send a book too large. Book size: {} - Allowed: {} - Pages: {}", this.player.getScoreboardName(), byteTotal, byteAllowed, 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;
@ -617,7 +633,12 @@
}
}
@@ -982,22 +1298,30 @@
@@ -978,26 +1294,34 @@
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();
@ -995,7 +1016,7 @@
+ 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;
+ }
+ }
@ -1088,10 +1109,12 @@
if (this.player.hasClientLoaded()) {
this.ackBlockChangesUpTo(packet.getSequence());
ServerLevel worldserver = this.player.serverLevel();
@@ -1296,6 +1888,47 @@
this.player.absRotateTo(f, f1);
}
@@ -1294,8 +1886,49 @@
if (f1 != this.player.getXRot() || f != this.player.getYRot()) {
this.player.absRotateTo(f, f1);
+ }
+
+ // CraftBukkit start
+ // Raytrace to look for 'rogue armswings'
+ double d0 = this.player.getX();
@ -1122,8 +1145,8 @@
+ cancelled = event.useItemInHand() == Event.Result.DENY;
+ }
+ this.player.gameMode.firedInteract = false;
+ }
+
}
+ if (cancelled) {
+ this.player.getBukkitEntity().updateInventory(); // SPIGOT-2524
+ return;
@ -1204,7 +1227,7 @@
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
}
}
@ -1332,10 +1355,11 @@
- private void tryHandleChat(String message, Runnable callback) {
- if (ServerGamePacketListenerImpl.isChatMessageIllegal(message)) {
- this.disconnect((Component) Component.translatable("multiplayer.disconnect.illegal_characters"));
- } else if (this.player.getChatVisibility() == ChatVisiblity.HIDDEN) {
+ private void tryHandleChat(String s, Runnable runnable, boolean sync) { // CraftBukkit
+ if (ServerGamePacketListenerImpl.isChatMessageIllegal(s)) {
this.disconnect((Component) Component.translatable("multiplayer.disconnect.illegal_characters"));
- } else if (this.player.getChatVisibility() == ChatVisiblity.HIDDEN) {
+ 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 {
@ -1351,6 +1375,15 @@
}
}
@@ -1549,7 +2257,7 @@
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;
@@ -1566,6 +2274,127 @@
return false;
}
@ -1479,7 +1512,7 @@
private PlayerChatMessage getSignedMessage(ServerboundChatPacket packet, LastSeenMessages lastSeenMessages) throws SignedMessageChain.DecodeException {
SignedMessageBody signedmessagebody = new SignedMessageBody(packet.message(), packet.timeStamp(), packet.salt(), lastSeenMessages);
@@ -1573,13 +2402,42 @@
@@ -1573,15 +2402,44 @@
}
private void broadcastChatMessage(PlayerChatMessage message) {
@ -1510,6 +1543,7 @@
- private void detectRateSpam() {
- this.chatSpamThrottler.increment();
- if (!this.chatSpamThrottler.isUnderThreshold() && !this.server.getPlayerList().isOp(this.player.getGameProfile()) && !this.server.isSingleplayerOwner(this.player.getGameProfile())) {
- this.disconnect((Component) Component.translatable("disconnect.spam"));
+ // Spigot start - spam exclusions
+ private void detectRateSpam(String s) {
+ // CraftBukkit start - replaced with thread safe throttle
@ -1519,14 +1553,25 @@
+ {
+ return;
+ }
+ }
}
+ // Spigot end
+ // this.chatSpamThrottler.increment();
+ if (!this.chatSpamThrottler.isIncrementAndUnderThreshold() && !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
+ }
}
@@ -1592,7 +2450,7 @@
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
}
}
@@ -1601,7 +2459,40 @@
@Override
public void handleAnimate(ServerboundSwingPacket packet) {
@ -1610,7 +1655,15 @@
break;
case RELEASE_SHIFT_KEY:
this.player.setShiftKeyDown(false);
@@ -1691,6 +2610,12 @@
@@ -1684,13 +2603,19 @@
}
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
}
}
}
public void sendPlayerChatMessage(PlayerChatMessage message, ChatType.Bound params) {
@ -1653,7 +1706,7 @@
+ // 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
@ -1747,7 +1800,7 @@
label23:
{
if (entity instanceof AbstractArrow) {
@@ -1785,6 +2769,11 @@
@@ -1785,17 +2769,41 @@
}
ServerGamePacketListenerImpl.this.player.attack(entity);
@ -1759,7 +1812,11 @@
return;
}
}
@@ -1795,7 +2784,26 @@
- 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());
}
});
}
}
@ -2133,7 +2190,7 @@
+ // Paper start - auto recipe limit
+ if (!org.bukkit.Bukkit.isPrimaryThread()) {
+ if (!this.recipeSpamPackets.isIncrementAndUnderThreshold()) {
+ 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;
+ }
+ }
@ -2311,6 +2368,24 @@
}
}
@@ -2033,7 +3440,7 @@
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();
@@ -2046,7 +3453,7 @@
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
}
}
@@ -2058,7 +3465,7 @@
if (!this.waitingForSwitchToConfig) {
throw new IllegalStateException("Client acknowledged config, but none was requested");

2
paper-server/patches/sources/net/minecraft/server/network/ServerLoginPacketListenerImpl.java.patch
View file

@ -46,7 +46,7 @@
+ }
+
+ @Override
+ public void kickPlayer(Component reason) {
+ public void kickPlayer(Component reason, org.bukkit.event.player.PlayerKickEvent.Cause cause) { // Paper - kick event causes - during login, no event can be called.
+ this.disconnect(reason);
+ }
+ // CraftBukkit end

4
paper-server/patches/sources/net/minecraft/server/players/PlayerList.java.patch
View file

@ -532,7 +532,7 @@
+ 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
@ -1048,7 +1048,7 @@
+ // 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

28
paper-server/patches/sources/net/minecraft/world/entity/player/ProfilePublicKey.java.patch Normal file
View file

@ -0,0 +1,28 @@
--- a/net/minecraft/world/entity/player/ProfilePublicKey.java
+++ b/net/minecraft/world/entity/player/ProfilePublicKey.java
@@ -24,7 +24,7 @@
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 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
}
}
}

13
paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
View file

@ -280,7 +280,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
void sendPacket(Packet<?> packet);
void kickPlayer(Component reason);
void kickPlayer(Component reason, org.bukkit.event.player.PlayerKickEvent.Cause cause); // Paper - kick event causes
}
public record CookieFuture(ResourceLocation key, CompletableFuture<byte[]> future) {
@ -640,7 +640,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
@Override
public void kickPlayer(String message) {
org.spigotmc.AsyncCatcher.catchOp("player kick"); // Spigot
this.getHandle().transferCookieConnection.kickPlayer(CraftChatMessage.fromStringOrEmpty(message, true));
this.getHandle().transferCookieConnection.kickPlayer(CraftChatMessage.fromStringOrEmpty(message, true), org.bukkit.event.player.PlayerKickEvent.Cause.PLUGIN); // Paper - kick event cause
}
// Paper start
@ -652,10 +652,15 @@ 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);
}
}
@ -716,7 +721,7 @@ 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);

2
paper-server/src/main/java/org/spigotmc/RestartCommand.java
View file

@ -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