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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 3 Mar 2016 01:17:12 -0600
Subject: [PATCH] Improve Player chat API handling
Properly split up the chat and command handling to reflect the server now
having separate packets for both, and the client always using the correct packet. Text
from a chat packet should never be parsed into a command, even if it starts with the `/`
character.
Add a missing async catcher and improve Spigot's async catcher error message.
== AT ==
public net.minecraft.server.network.ServerGamePacketListenerImpl isChatMessageIllegal(Ljava/lang/String;)Z
Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>
Co-authored-by: SoSeDiK <mrsosedik@gmail.com>
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index eee2d397b1de010552e5d194a7896598d63ec4a6..7b9e613d68f5765207bc60aa9b82bfc8e9da49bf 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -2013,7 +2013,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
}
OutgoingChatMessage outgoing = OutgoingChatMessage.create(original);
- if (!async && s.startsWith("/")) {
+ if (false && !async && s.startsWith("/")) { // Paper - Don't handle commands in chat logic
this.handleCommand(s);
} else if (this.player.getChatVisibility() == ChatVisiblity.SYSTEM) {
// Do nothing, this is coming from a plugin
@@ -2100,7 +2100,8 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
}
}
- private void handleCommand(String s) {
+ public void handleCommand(String s) { // Paper - private -> public
+ org.spigotmc.AsyncCatcher.catchOp("Command Dispatched Async: " + s); // Paper - Add async catcher
if ( org.spigotmc.SpigotConfig.logCommands ) // Spigot
this.LOGGER.info(this.player.getScoreboardName() + " issued server command: " + s);
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 2a36e562967ec6174efe456e489c50ca10ba47e5..b0371c51645da361b63dea02bf7633ae6191560f 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -933,7 +933,7 @@ public final class CraftServer implements Server {
public boolean dispatchCommand(CommandSender sender, String commandLine) {
Preconditions.checkArgument(sender != null, "sender cannot be null");
Preconditions.checkArgument(commandLine != null, "commandLine cannot be null");
- org.spigotmc.AsyncCatcher.catchOp("command dispatch"); // Spigot
+ org.spigotmc.AsyncCatcher.catchOp("Command Dispatched Async: " + commandLine); // Spigot // Paper - Include command in error message
if (this.commandMap.dispatch(sender, commandLine)) {
return true;
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index fb5548b92a0fe7866cf98e25293c4b0702344c9b..52d48ad341c564f0f847e3aad09babee826ebf87 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -546,7 +546,20 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
if (this.getHandle().connection == null) return;
- this.getHandle().connection.chat(msg, PlayerChatMessage.system(msg), false);
+ // Paper start - Improve chat handling
+ if (ServerGamePacketListenerImpl.isChatMessageIllegal(msg)) {
+ this.getHandle().connection.disconnect(Component.translatable("multiplayer.disconnect.illegal_characters"));
+ } else {
+ if (msg.startsWith("/")) {
+ this.getHandle().connection.handleCommand(msg);
+ } else {
+ final PlayerChatMessage playerChatMessage = PlayerChatMessage.system(msg).withUnsignedContent(Component.literal(msg));
+ // TODO chat decorating
+ // TODO text filtering
+ this.getHandle().connection.chat(msg, playerChatMessage, false);
+ }
+ }
+ // Paper end - Improve chat handling
}
@Override
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