Paper/Spigot-Server-Patches/0326-Break-up-and-make-tab-spam-limits-configurable.patch
Aikar f835a91d15
Updated Upstream (Bukkit/CraftBukkit), deprecate SentientNPC API
Upstream has added the equivalent of our SentientNPC API, with exception to the EnderDragon.

We've added Mob to the EnderDragon, and our SentientNPC API should behave the same.

Vex#getOwner has been deprecated and a replacement Vex#getSummoner has been added using Mob.

However, since 1.13 is not production ready, SentientNPC API is subject for removal in 1.13.1 since
1.13 API is not compatible with 1.12.

Please move to the Mob interface ASAP.

This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
c5ab54d8 Expand GameRule API
ab9a606c Improve entity hierarchy by adding Mob interface.

CraftBukkit Changes:
29e75648 Expand GameRule API
50e6858b Improve entity hierarchy by adding Mob interface.
0e1d79b4 Correct error in previous patch
2018-08-10 22:20:59 -04:00

79 lines
4.5 KiB
Diff

From a118ceac94cfcd9814c85880f46ae0a08e4e4fb7 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Sun, 29 Jul 2018 05:02:15 +0100
Subject: [PATCH] Break up and make tab spam limits configurable
Due to the changes in 1.13, clients will send a tab completion request
for all bukkit commands in order to factor in the lack of support for
brigadier and provide backwards support in the API.
Craftbukkit, however; has moved the chat spam limiter to also interact
with the tab completion request, which while good for avoiding abuse,
causes 1.13 clients to easilly be kicked from a server in bukkit due
to this. Removing the spam limit could cause issues for servers, however,
there is no way for servers to manipulate this without blindly cancelling
kick events, which only causes additional complications. This also causes
issues in that the tab spam limit and chat share the same field but different
limits, meaning that a player having typed a long command may be kicked from
the server.
Splitting the field up and making it configurable allows for server owners
to take the burden of this into their own hand without having to rely on
plugins doing unsafe things.
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index c457d07110..046bf33f66 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -327,4 +327,18 @@ public class PaperConfig {
logger.log(Level.INFO, "******************************************************");
}
}
+
+ public static int tabSpamIncrement = 2;
+ public static int tabSpamLimit = 500;
+ private static void tabSpamLimiters() {
+ tabSpamIncrement = getInt("settings.spam-limiter.tab-spam-increment", tabSpamIncrement);
+ // Older versions used a smaller limit, which is too low for 1.13, we'll bump this up if default
+ if (version < 14) {
+ if (tabSpamIncrement == 10) {
+ set("settings.spam-limiter.tab-spam-increment", 2);
+ tabSpamIncrement = 2;
+ }
+ }
+ tabSpamLimit = getInt("settings.spam-limiter.tab-spam-limit", tabSpamLimit);
+ }
}
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index f7401f5c98..6ebc0a95e2 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -75,6 +75,7 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
// CraftBukkit start - multithreaded fields
private volatile int chatThrottle;
private static final AtomicIntegerFieldUpdater chatSpamField = AtomicIntegerFieldUpdater.newUpdater(PlayerConnection.class, "chatThrottle");
+ private final java.util.concurrent.atomic.AtomicInteger tabSpamLimiter = new java.util.concurrent.atomic.AtomicInteger(); // Paper - configurable tab spam limits
// CraftBukkit end
private int j;
private final IntHashMap<Short> k = new IntHashMap();
@@ -204,6 +205,7 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
this.minecraftServer.methodProfiler.e();
// CraftBukkit start
for (int spam; (spam = this.chatThrottle) > 0 && !chatSpamField.compareAndSet(this, spam, spam - 1); ) ;
+ if (tabSpamLimiter.get() > 0) tabSpamLimiter.getAndDecrement(); // Paper - split to seperate variable
/* Use thread-safe field access instead
if (this.chatThrottle > 0) {
--this.chatThrottle;
@@ -506,7 +508,7 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
public void a(PacketPlayInTabComplete packetplayintabcomplete) {
// PlayerConnectionUtils.ensureMainThread(packetplayintabcomplete, this, this.player.getWorldServer()); // Paper - run this async
// CraftBukkit start
- if (chatSpamField.addAndGet(this, 2) > 500 && !this.minecraftServer.getPlayerList().isOp(this.player.getProfile())) {
+ if (tabSpamLimiter.addAndGet(com.destroystokyo.paper.PaperConfig.tabSpamIncrement) > com.destroystokyo.paper.PaperConfig.tabSpamLimit && !this.minecraftServer.getPlayerList().isOp(this.player.getProfile())) { // Paper start - split and make configurable
this.disconnect(new ChatMessage("disconnect.spam", new Object[0]));
minecraftServer.postToMainThread(() -> this.disconnect(new ChatMessage("disconnect.spam", new Object[0]))); // Paper
return;
--
2.18.0