Paper/patches/server/0445-Limit-recipe-packets.patch
Nassim Jahnke dc684c60d1
Remove bad server.scheduleOnMain disconnect calls from old patches
The new behavior of disconnect to block the current thread until the disconnect succeeded is better than throwing it off to happen at some point
2024-06-16 12:56:00 +02:00

42 lines
2.8 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/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index d8cd5bcc8d8c07eb4582030ca2703f9171743bd8..291c85c823a24b86235bf7581761c1686f609b82 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -266,6 +266,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
// CraftBukkit start - multithreaded fields
private final 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;
@@ -384,6 +385,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
// CraftBukkit start
for (int spam; (spam = this.chatSpamTickCount.get()) > 0 && !this.chatSpamTickCount.compareAndSet(spam, spam - 1); ) ;
if (tabSpamLimiter.get() > 0) tabSpamLimiter.getAndDecrement(); // Paper - configurable tab spam limits
+ if (recipeSpamPackets.get() > 0) recipeSpamPackets.getAndDecrement(); // Paper - auto recipe limit
/* Use thread-safe field access instead
if (this.chatSpamTickCount > 0) {
--this.chatSpamTickCount;
@@ -3070,6 +3072,14 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
@Override
public void handlePlaceRecipe(ServerboundPlaceRecipePacket packet) {
+ // Paper start - auto recipe limit
+ if (!org.bukkit.Bukkit.isPrimaryThread()) {
+ if (this.recipeSpamPackets.addAndGet(io.papermc.paper.configuration.GlobalConfiguration.get().spamLimiter.recipeSpamIncrement) > io.papermc.paper.configuration.GlobalConfiguration.get().spamLimiter.recipeSpamLimit) {
+ this.disconnect(net.minecraft.network.chat.Component.translatable("disconnect.spam"));
+ return;
+ }
+ }
+ // Paper end - auto recipe limit
PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
this.player.resetLastActionTime();
if (!this.player.isSpectator() && this.player.containerMenu.containerId == packet.getContainerId() && this.player.containerMenu instanceof RecipeBookMenu) {