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Paper/Spigot-Server-Patches/0315-Break-up-and-make-tab-spam-limits-configurable.patch
Shane Freeder ea855e2b46 Updated Upstream (Bukkit/CraftBukkit/Spigot)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Developers!: You will need to clean up your work/Minecraft/1.13.2 folder
for this

Also, restore a patch that was dropped in the last upstream

Bukkit Changes:
279eeab3 Fix command description not being set
96e2bb18 Remove debug print from SyntheticEventTest

CraftBukkit Changes:
d3ed1516 Fix dangerously threaded beacons
217a293d Don't relocate joptsimple to allow --help to work.
1be05a21 Prepare for imminent Java 12 release
a49270b2 Mappings Update
5259d80c SPIGOT-4669: Fix PlayerTeleportEvent coordinates for relative teleports

Spigot Changes:
e6eb36f2 Rebuild patches
2019-03-20 01:55:16 +00:00

79 Zeilen
4.5 KiB
Diff

From 4eb1fe024505c41a58aedceadf435a00505610ed 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 3538e80c3..975ebf75c 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -332,4 +332,18 @@ public class PaperConfig {
logger.log(Level.INFO, "******************************************************");
}
}
+
+ public static int tabSpamIncrement = 1;
+ 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 9394d60d9..a7b4439f0 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -76,6 +76,7 @@ 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.exit();
// 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;
@@ -509,7 +511,7 @@ 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, 1) > 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
minecraftServer.postToMainThread(() -> this.disconnect(new ChatMessage("disconnect.spam", new Object[0]))); // Paper
return;
}
--
2.21.0