Make UseItem rate limiting stricter, configurable

Spigot-API-Patches/0012-Add-PlayerInitialSpawnEvent.patch

@@ -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
 

Spigot-API-Patches/0014-Automatically-disable-plugins-that-fail-to-load.patch

@@ -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
 

Spigot-Server-Patches/0170-Rate-limit-PacketPlayInUseItem.patch

@@ -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;
 +        }