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Make UseItem rate limiting stricter, configurable

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Zach Brown 2016-09-10 23:27:07 -05:00
parent 5626ad5f58
commit 2e880e7676
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GPG Key ID: CC9DA35FC5450B76
3 changed files with 25 additions and 10 deletions
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4
Spigot-API-Patches/0012-Add-PlayerInitialSpawnEvent.patch
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@ -1,4 +1,4 @@
From 3dabbf24d9e169631ff0f11df707e0623c4d2cc4 Mon Sep 17 00:00:00 2001
From f41fd8808accbe9c7771647d3beddc54fc5e7036 Mon Sep 17 00:00:00 2001
From: Steve Anton <anxuiz.nx@gmail.com>
Date: Mon, 29 Feb 2016 18:13:58 -0600
Subject: [PATCH] Add PlayerInitialSpawnEvent
@ -55,5 +55,5 @@ index 0000000..d1d6f33
+ }
+}
--
2.8.0
2.10.0.windows.1

4
Spigot-API-Patches/0014-Automatically-disable-plugins-that-fail-to-load.patch
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@ -1,4 +1,4 @@
From aca5c5298ce7fca0a9b6d8c8240f94d1a09de085 Mon Sep 17 00:00:00 2001
From 90e6868ac669e61bc3b0e176b452181dcf078c2c Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 29 Feb 2016 19:45:21 -0600
Subject: [PATCH] Automatically disable plugins that fail to load
@ -20,5 +20,5 @@ index 759c461..d8b9c24 100644
// Perhaps abort here, rather than continue going, but as it stands,
--
2.9.3
2.10.0.windows.1

27
Spigot-Server-Patches/0170-Rate-limit-PacketPlayInUseItem.patch
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@ -1,9 +1,23 @@
From 7d5d1e68148e2a526c03aeadffcda93ff8787394 Mon Sep 17 00:00:00 2001
From 49a2546fd62526b61f8dc3b7e88093a5cbcb709a Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Sat, 10 Sep 2016 21:40:51 -0500
Subject: [PATCH] Rate limit PacketPlayInUseItem
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index f40440f..f1973e3 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -225,4 +225,9 @@ public class PaperConfig {
private static void bungeeOnlineMode() {
bungeeOnlineMode = getBoolean("settings.bungee-online-mode", true);
}
+
+ public static int playInUseItemThreshold = 300;
+ private static void playInUseItemThreshold() {
+ playInUseItemThreshold = getInt("settings.play-in-use-item-spam-threshold", 300);
+ }
}
diff --git a/src/main/java/net/minecraft/server/PacketPlayInUseItem.java b/src/main/java/net/minecraft/server/PacketPlayInUseItem.java
index 82e09c1..88ac278 100644
--- a/src/main/java/net/minecraft/server/PacketPlayInUseItem.java
@ -33,29 +47,30 @@ index 82e09c1..88ac278 100644
public void a(PacketListenerPlayIn packetlistenerplayin) {
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index 3d04119..a299f4f 100644
index 3d04119..ab30d39 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -865,6 +865,10 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
@@ -865,6 +865,11 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
// CraftBukkit end
}
+ // Paper start - Rate limit UseItem as well, copied from Spigot implementation below in BlockPlace
+ private long lastPlaceUse = -1;
+ private int packetsUse = 0;
+ private static final int THRESHOLD = com.destroystokyo.paper.PaperConfig.playInUseItemThreshold;
+ // Paper end
public void a(PacketPlayInUseItem packetplayinuseitem) {
PlayerConnectionUtils.ensureMainThread(packetplayinuseitem, this, this.player.x());
if (this.player.cj()) return; // CraftBukkit
@@ -875,6 +879,16 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
@@ -875,6 +880,16 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
EnumDirection enumdirection = packetplayinuseitem.b();
this.player.resetIdleTimer();
+
+ // Paper start - Rate limit UseItem as well, copied from Spigot implementation below in BlockPlace
+ if (lastPlaceUse != -1 && packetplayinuseitem.timestamp - lastPlaceUse < 30 && packetsUse++ >= 4) {
+ if (lastPlaceUse != -1 && packetplayinuseitem.timestamp - lastPlaceUse < THRESHOLD && packetsUse++ >= 4) {
+ return;
+ } else if (packetplayinuseitem.timestamp - lastPlaceUse >= 30 || lastPlaceUse == -1) {
+ } else if (packetplayinuseitem.timestamp - lastPlaceUse >= THRESHOLD || lastPlaceUse == -1) {
+ lastPlaceUse = packetplayinuseitem.timestamp;
+ packetsUse = 0;
+ }