59 lines
3.7 KiB
Diff
59 lines
3.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Sat, 12 Dec 2020 23:45:28 +0000
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Subject: [PATCH] Limit recipe packets
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diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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index 3e486376a49a61d52cdcd32ea877996d81186a73..e62bb33852b0dca346aeb3cb2747d1a5686dea2d 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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@@ -334,6 +334,13 @@ public class PaperConfig {
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tabSpamLimit = getInt("settings.spam-limiter.tab-spam-limit", tabSpamLimit);
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}
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+ public static int autoRecipeIncrement = 1;
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+ public static int autoRecipeLimit = 20;
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+ private static void autoRecipieLimiters() {
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+ autoRecipeIncrement = getInt("settings.spam-limiter.recipe-spam-increment", autoRecipeIncrement);
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+ autoRecipeLimit = getInt("settings.spam-limiter.recipe-spam-limit", autoRecipeLimit);
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+ }
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+
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public static boolean velocitySupport;
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public static boolean velocityOnlineMode;
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public static byte[] velocitySecretKey;
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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 6dccd2288e2fbce173fa60529ee161725e0f983c..11cc3a6f04371b9217c201fd5d583213c2fbe57d 100644
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--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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+++ 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
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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
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+ private final java.util.concurrent.atomic.AtomicInteger recipeSpamPackets = new java.util.concurrent.atomic.AtomicInteger(); // Paper - auto recipe limit
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// CraftBukkit end
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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
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+ if (recipeSpamPackets.get() > 0) recipeSpamPackets.getAndDecrement(); // Paper
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/* Use thread-safe field access instead
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if (this.chatSpamTickCount > 0) {
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--this.chatSpamTickCount;
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@@ -2780,6 +2782,14 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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@Override
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public void handlePlaceRecipe(ServerboundPlaceRecipePacket packet) {
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+ // Paper start
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+ if (!org.bukkit.Bukkit.isPrimaryThread()) {
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+ 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
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+ return;
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+ }
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+ }
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+ // Paper end
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PacketUtils.ensureRunningOnSameThread(packet, this, this.player.getLevel());
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this.player.resetLastActionTime();
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if (!this.player.isSpectator() && this.player.containerMenu.containerId == packet.getContainerId() && this.player.containerMenu instanceof RecipeBookMenu) {
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