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89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
34 lines
2.1 KiB
Diff
34 lines
2.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Thu, 16 Jun 2022 14:22:56 -0700
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Subject: [PATCH] Don't broadcast messages to command blocks
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Previously the broadcast method would update the last output
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in command blocks, and if called asynchronously, would throw
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an error
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diff --git a/src/main/java/net/minecraft/world/level/BaseCommandBlock.java b/src/main/java/net/minecraft/world/level/BaseCommandBlock.java
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index c56f5173fda6b38c2dcaea196217f2f5a7d7c641..524b0f1086c01888fe0b76e180c40915d16a1eb9 100644
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--- a/src/main/java/net/minecraft/world/level/BaseCommandBlock.java
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+++ b/src/main/java/net/minecraft/world/level/BaseCommandBlock.java
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@@ -172,6 +172,7 @@ public abstract class BaseCommandBlock implements CommandSource {
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@Override
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public void sendSystemMessage(Component message) {
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if (this.trackOutput) {
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+ org.spigotmc.AsyncCatcher.catchOp("sendSystemMessage to a command block"); // Paper - Don't broadcast messages to command blocks
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SimpleDateFormat simpledateformat = BaseCommandBlock.TIME_FORMAT;
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Date date = new Date();
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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index 562953515e21adc1cffadfe3ffb803c2d5059df0..e849e706660bf0b0ef1748dfee3ba75e5aff9863 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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@@ -1880,7 +1880,7 @@ public final class CraftServer implements Server {
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// Paper end
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Set<CommandSender> recipients = new HashSet<>();
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for (Permissible permissible : this.getPluginManager().getPermissionSubscriptions(permission)) {
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- if (permissible instanceof CommandSender && permissible.hasPermission(permission)) {
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+ if (permissible instanceof CommandSender && !(permissible instanceof org.bukkit.command.BlockCommandSender) && permissible.hasPermission(permission)) { // Paper - Don't broadcast messages to command blocks
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recipients.add((CommandSender) permissible);
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}
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}
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