Paper/patches/server/0566-Limit-recipe-packets.patch
Shane Freeder aa52bf9e33
Remove "Implement-Chunk-Priority-Urgency-System-for-Chunks" (Fixes #5980)
Mojang made some changes to priorities in 1.17 and it seems that these changes
conflict with the changes made in this patch, which in some cases appears to
cause excessive rescheduling of tasks.

This, however, is not confirmed as such but seems to be the behavior that we're
seeing to cause this issue, if mojang has adopted the changes we suggested,
then a good chunk of this patch may be unneeded, but, this needs a much better
look than I'm currently able to do
2021-08-14 14:55:55 +01:00

60 Zeilen
3.7 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Sat, 12 Dec 2020 23:45:28 +0000
Subject: [PATCH] Limit recipe packets
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index 22027cdebcde2157b119f37cb1471f7a69c2a31a..ec8afe1bb9881c87c4ee0f15dcfcb4b8f318febc 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -352,6 +352,13 @@ public class PaperConfig {
tabSpamLimit = getInt("settings.spam-limiter.tab-spam-limit", tabSpamLimit);
}
+ public static int autoRecipeIncrement = 1;
+ public static int autoRecipeLimit = 20;
+ private static void autoRecipieLimiters() {
+ autoRecipeIncrement = getInt("settings.spam-limiter.recipe-spam-increment", autoRecipeIncrement);
+ autoRecipeLimit = getInt("settings.spam-limiter.recipe-spam-limit", autoRecipeLimit);
+ }
+
public static boolean velocitySupport;
public static boolean velocityOnlineMode;
public static byte[] velocitySecretKey;
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index dee3c1d24a1b4a67c79d13106fdab54200023cb9..f7aecda113cb12b6b392b26f861c8cd55b7f3ddd 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -231,6 +231,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
// CraftBukkit start - multithreaded fields
private AtomicInteger chatSpamTickCount = new AtomicInteger();
private final java.util.concurrent.atomic.AtomicInteger tabSpamLimiter = new java.util.concurrent.atomic.AtomicInteger(); // Paper - configurable tab spam limits
+ private final java.util.concurrent.atomic.AtomicInteger recipeSpamPackets = new java.util.concurrent.atomic.AtomicInteger(); // Paper - auto recipe limit
// CraftBukkit end
private int dropSpamTickCount;
private double firstGoodX;
@@ -376,6 +377,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
// CraftBukkit start
for (int spam; (spam = this.chatSpamTickCount.get()) > 0 && !this.chatSpamTickCount.compareAndSet(spam, spam - 1); ) ;
if (tabSpamLimiter.get() > 0) tabSpamLimiter.getAndDecrement(); // Paper - split to seperate variable
+ if (recipeSpamPackets.get() > 0) recipeSpamPackets.getAndDecrement(); // Paper
/* Use thread-safe field access instead
if (this.chatSpamTickCount > 0) {
--this.chatSpamTickCount;
@@ -2780,6 +2782,14 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
@Override
public void handlePlaceRecipe(ServerboundPlaceRecipePacket packet) {
+ // Paper start
+ if (!org.bukkit.Bukkit.isPrimaryThread()) {
+ if (recipeSpamPackets.addAndGet(com.destroystokyo.paper.PaperConfig.autoRecipeIncrement) > com.destroystokyo.paper.PaperConfig.autoRecipeLimit) {
+ server.scheduleOnMain(() -> this.disconnect(new TranslatableComponent("disconnect.spam", new Object[0]))); // Paper
+ return;
+ }
+ }
+ // Paper end
PacketUtils.ensureRunningOnSameThread(packet, this, this.player.getLevel());
this.player.resetLastActionTime();
if (!this.player.isSpectator() && this.player.containerMenu.containerId == packet.getContainerId() && this.player.containerMenu instanceof RecipeBookMenu) {