papermc/patches/server/0104-Configurable-packet-in-spam-threshold.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Sun, 11 Sep 2016 14:30:57 -0500
Subject: [PATCH] Configurable packet in spam threshold


diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index 96fbac179e6970f4eeeed9fdc07c1ac1d8e8be0a..081761cd2177bd3cea5a489a85e7088c46d12725 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -264,4 +264,13 @@ public class PaperConfig {
     public static boolean isProxyOnlineMode() {
         return Bukkit.getOnlineMode() || (SpigotConfig.bungee && bungeeOnlineMode);
     }
+
+    public static int packetInSpamThreshold = 300;
+    private static void packetInSpamThreshold() {
+        if (version < 11) {
+            int oldValue = getInt("settings.play-in-use-item-spam-threshold", 300);
+            set("settings.incoming-packet-spam-threshold", oldValue);
+        }
+        packetInSpamThreshold = getInt("settings.incoming-packet-spam-threshold", 300);
+    }
 }
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 8e976184215b2db7684bb0488e4a8124b5dedde0..350a8194ef52242be6a70a16d2692e17216178fb 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1502,13 +1502,14 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
     // Spigot start - limit place/interactions
     private int limitedPackets;
     private long lastLimitedPacket = -1;
+    private static final int THRESHOLD = com.destroystokyo.paper.PaperConfig.packetInSpamThreshold; // Paper - Configurable threshold
 
     private boolean checkLimit(long timestamp) {
-        if (this.lastLimitedPacket != -1 && timestamp - this.lastLimitedPacket < 30 && this.limitedPackets++ >= 4) {
+        if (this.lastLimitedPacket != -1 && timestamp - this.lastLimitedPacket < THRESHOLD && this.limitedPackets++ >= 8) { // Paper - Use threshold, raise packet limit to 8
             return false;
         }
 
-        if (this.lastLimitedPacket == -1 || timestamp - this.lastLimitedPacket >= 30) {
+        if (this.lastLimitedPacket == -1 || timestamp - this.lastLimitedPacket >= THRESHOLD) { // Paper
             this.lastLimitedPacket = timestamp;
             this.limitedPackets = 0;
             return true;