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Mirror von https://github.com/PaperMC/Paper.git synchronisiert 2024-12-17 03:50:08 +01:00
Paper/patches/server/0568-Limit-recipe-packets.patch

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3.7 KiB
Diff

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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 c1842abd86751353a323a725e55db2d92a562dae..ac79cdde35b0a332556a5db7017732eb98139b4f 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -343,6 +343,13 @@ public class PaperConfig {
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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
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index b804a29dc0c3538f5f14d6276247f8f7a299e481..946d537c3049a884a175b20bd79fc97dc762f0f1 100644
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--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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@@ -231,6 +231,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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// CraftBukkit start - multithreaded fields
private AtomicInteger chatSpamTickCount = new AtomicInteger();
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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;
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private double firstGoodX;
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@@ -376,6 +377,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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// CraftBukkit start
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for (int spam; (spam = this.chatSpamTickCount.get()) > 0 && !this.chatSpamTickCount.compareAndSet(spam, spam - 1); ) ;
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if (tabSpamLimiter.get() > 0) tabSpamLimiter.getAndDecrement(); // Paper - split to seperate variable
+ if (recipeSpamPackets.get() > 0) recipeSpamPackets.getAndDecrement(); // Paper
/* Use thread-safe field access instead
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if (this.chatSpamTickCount > 0) {
--this.chatSpamTickCount;
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@@ -2780,6 +2782,14 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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@Override
public void handlePlaceRecipe(ServerboundPlaceRecipePacket packet) {
+ // Paper start
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+ if (!org.bukkit.Bukkit.isPrimaryThread()) {
+ if (recipeSpamPackets.addAndGet(com.destroystokyo.paper.PaperConfig.autoRecipeIncrement) > com.destroystokyo.paper.PaperConfig.autoRecipeLimit) {
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+ 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();
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if (!this.player.isSpectator() && this.player.containerMenu.containerId == packet.getContainerId() && this.player.containerMenu instanceof RecipeBookMenu) {