Mirror von
https://github.com/PaperMC/Paper.git
synchronisiert 2024-12-16 11:30:06 +01:00
7ef05fbd8a
CB blindly drops any update flags when recording block modifications, this causes the debug stick to blindly update neighbouring blocks on usage in order to control this, we will special case this item, however, this ideally should be fixed by recording the actual update flags used, but will induce ABI breaks... This patch also maintains the behavior of the BlockPlaceEvent, this behavior will NOT be guaranteed in the future, however.
85 Zeilen
4.5 KiB
Diff
85 Zeilen
4.5 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 c14df29b190a9c0126545e0084b6283efc3ce7b0..152857012d46e05c185e2a3f62a770419f2dcbc6 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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@@ -326,6 +326,13 @@ 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/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
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index fbbb5d1019d894e0f05cffb05bcea1e2fdfcbf6e..4d3a427b16e1e0d6889faf4b913b212f8a6e938d 100644
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--- a/src/main/java/net/minecraft/server/PlayerConnection.java
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+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
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@@ -1,5 +1,6 @@
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package net.minecraft.server;
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+import com.destroystokyo.paper.PaperConfig;
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import com.google.common.collect.Lists;
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import com.google.common.primitives.Doubles;
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import com.google.common.primitives.Floats;
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@@ -21,7 +22,7 @@ import java.util.function.Consumer;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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import javax.annotation.Nullable;
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-import org.apache.commons.lang3.StringEscapeUtils;
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+
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import org.apache.commons.lang3.StringUtils;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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@@ -29,6 +30,8 @@ import org.apache.logging.log4j.Logger;
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// CraftBukkit start
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
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+
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+import org.bukkit.Bukkit;
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import org.bukkit.Location;
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import org.bukkit.craftbukkit.entity.CraftPlayer;
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import org.bukkit.craftbukkit.event.CraftEventFactory;
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@@ -85,6 +88,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
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private volatile int chatThrottle;
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private static final AtomicIntegerFieldUpdater chatSpamField = AtomicIntegerFieldUpdater.newUpdater(PlayerConnection.class, "chatThrottle");
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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 j;
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private final Int2ShortMap k = new Int2ShortOpenHashMap();
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@@ -233,6 +237,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
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// CraftBukkit start
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for (int spam; (spam = this.chatThrottle) > 0 && !chatSpamField.compareAndSet(this, 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.chatThrottle > 0) {
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--this.chatThrottle;
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@@ -2627,6 +2632,14 @@ public class PlayerConnection implements PacketListenerPlayIn {
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@Override
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public void a(PacketPlayInAutoRecipe packetplayinautorecipe) {
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+ // Paper start
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+ if (!Bukkit.isPrimaryThread()) {
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+ if (recipeSpamPackets.addAndGet(PaperConfig.autoRecipeIncrement) > PaperConfig.autoRecipeLimit) {
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+ minecraftServer.scheduleOnMain(() -> this.disconnect(new ChatMessage("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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PlayerConnectionUtils.ensureMainThread(packetplayinautorecipe, this, this.player.getWorldServer());
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this.player.resetIdleTimer();
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if (!this.player.isSpectator() && this.player.activeContainer.windowId == packetplayinautorecipe.b() && this.player.activeContainer.c(this.player) && this.player.activeContainer instanceof ContainerRecipeBook) {
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