PaperMC/patches/server/0544-Limit-recipe-packets.patch
Nassim Jahnke 26734e83b0
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#7454)
* Updated Upstream (Bukkit/CraftBukkit/Spigot)

Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
8085edde SPIGOT-6918: Add SpawnCategory API and configurations for Axolotls
04c7e13c PR-719: Add Player Profile API
71564210 SPIGOT-6910: Add BlockDamageAbortEvent

CraftBukkit Changes:
febaa1c6 SPIGOT-6918: Add SpawnCategory API and configurations for Axolotls
9dafd109 Don't send updates over large distances
bdac46b0 SPIGOT-6782: EntityPortalEvent should not destroy entity when setTo() uses same world as getFrom()
8f361ece PR-1002: Add Player Profile API
911875d4 Increase outdated build delay
e5f8a767 SPIGOT-6917: Use main scoreboard for /trigger
a672a531 Clean up callBlockDamageEvent
8e1bdeef SPIGOT-6910: Add BlockDamageAbortEvent

Spigot Changes:
6edb62f3 Rebuild patches
7fbc6a1e Rebuild patches

* Updated Upstream (CraftBukkit)

Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

CraftBukkit Changes:
de951355 SPIGOT-6927: Fix default value of spawn-limits in Worlds
2022-02-12 14:20:33 +01:00

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 ec42fb00b6f4a691fa710c68131f80b242e3e6e8..d5ae781d65016e0382cb3497cb8cac201680bc8c 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -366,6 +366,13 @@ 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 64bd37e70997d1cbafa6a5f9b800352a7c105f28..f93b6822f5180720849db4bd47c53366060bbe89 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -230,6 +230,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
// 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;
@@ -374,6 +375,7 @@ 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;
@@ -2817,6 +2819,14 @@ 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) {