Paper/patches/server/0783-Kick-on-main-for-illegal-chat.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Nassim Jahnke <nassim@njahnke.dev>
Date: Mon, 17 Jan 2022 19:47:19 +0100
Subject: [PATCH] Kick on main for illegal chat
Makes the PlayerKickEvent fire on the main thread for
illegal characters or chat out-of-order errors.
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 8552f230b4ec64a6e056198d3edb04395138608a..1371ffc0426ff019c47f30f2cdeea51f72b137c3 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -2162,7 +2162,9 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
}
// CraftBukkit end
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if (ServerGamePacketListenerImpl.isChatMessageIllegal(packet.message())) {
+ this.server.scheduleOnMain(() -> { // Paper - push to main for event firing
this.disconnect(Component.translatable("multiplayer.disconnect.illegal_characters"), org.bukkit.event.player.PlayerKickEvent.Cause.ILLEGAL_CHARACTERS); // Paper - add cause
+ }); // Paper - push to main for event firing
} else {
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Optional<LastSeenMessages> optional = this.tryHandleChat(packet.message(), packet.timeStamp(), packet.lastSeenMessages());
@@ -2196,7 +2198,9 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
@Override
public void handleChatCommand(ServerboundChatCommandPacket packet) {
if (ServerGamePacketListenerImpl.isChatMessageIllegal(packet.command())) {
+ this.server.scheduleOnMain(() -> { // Paper - push to main for event firing
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this.disconnect(Component.translatable("multiplayer.disconnect.illegal_characters"), org.bukkit.event.player.PlayerKickEvent.Cause.ILLEGAL_CHARACTERS); // Paper
+ }); // Paper - push to main for event firing
} else {
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Optional<LastSeenMessages> optional = this.tryHandleChat(packet.command(), packet.timeStamp(), packet.lastSeenMessages());
@@ -2276,7 +2280,9 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
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private Optional<LastSeenMessages> tryHandleChat(String message, Instant timestamp, LastSeenMessages.Update acknowledgment) {
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if (!this.updateChatOrder(timestamp)) {
ServerGamePacketListenerImpl.LOGGER.warn("{} sent out-of-order chat: '{}'", this.player.getName().getString(), message);
+ this.server.scheduleOnMain(() -> { // Paper - push to main
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this.disconnect(Component.translatable("multiplayer.disconnect.out_of_order_chat"), org.bukkit.event.player.PlayerKickEvent.Cause.OUT_OF_ORDER_CHAT); // Paper - kick event ca
+ }); // Paper - push to main
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return Optional.empty();
} else {
Optional<LastSeenMessages> optional = this.unpackAndApplyLastSeen(acknowledgment);