PaperMC/patches/server/0563-Limit-recipe-packets.patch
2021-09-03 19:57:21 +02:00

59 lines
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 75fbffa9628072d2ebb0035bc057924eb6ed31e1..8889d727a0531d4ac65f01959ed68b57344b7ef2 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 e30e02d64f49bc086ac978abbc18e5050135d0c9..f7af847e826058cb533fc5f507efaa87cb10b562 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;
@@ -2792,6 +2794,14 @@ 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) {