From df01fcb7e6f82f93930252373a4b6c1dc0f0b09b Mon Sep 17 00:00:00 2001 From: Thinkofdeath Date: Sun, 29 Jun 2014 21:10:34 +0100 Subject: [PATCH] Limit block placement/interaction packets diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java index 024ec84..bd61823 100644 --- a/src/main/java/net/minecraft/server/PlayerConnection.java +++ b/src/main/java/net/minecraft/server/PlayerConnection.java @@ -573,7 +573,20 @@ public class PlayerConnection implements PacketPlayInListener { } } + // Spigot start - limit place/interactions + private long lastPlace = -1; + private int packets = 0; + public void a(PacketPlayInBlockPlace packetplayinblockplace) { + boolean throttled = false; + if (lastPlace != -1 && packetplayinblockplace.timestamp - lastPlace < 30 && packets++ >= 4) { + throttled = true; + } else if ( packetplayinblockplace.timestamp - lastPlace >= 30 || lastPlace == -1 ) + { + lastPlace = packetplayinblockplace.timestamp; + packets = 0; + } + // Spigot end WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension); // CraftBukkit start @@ -616,10 +629,14 @@ public class PlayerConnection implements PacketPlayInListener { // CraftBukkit start int itemstackAmount = itemstack.count; + // Spigot start - skip the event if throttled + if (!throttled) { org.bukkit.event.player.PlayerInteractEvent event = CraftEventFactory.callPlayerInteractEvent(this.player, Action.RIGHT_CLICK_AIR, itemstack); if (event.useItemInHand() != Event.Result.DENY) { this.player.playerInteractManager.useItem(this.player, this.player.world, itemstack); } + } + // Spigot end // CraftBukkit - notch decrements the counter by 1 in the above method with food, // snowballs and so forth, but he does it in a place that doesn't cause the @@ -640,7 +657,7 @@ public class PlayerConnection implements PacketPlayInListener { return; } - if (!this.player.playerInteractManager.interact(this.player, worldserver, itemstack, i, j, k, l, packetplayinblockplace.h(), packetplayinblockplace.i(), packetplayinblockplace.j())) { + if (throttled || !this.player.playerInteractManager.interact(this.player, worldserver, itemstack, i, j, k, l, packetplayinblockplace.h(), packetplayinblockplace.i(), packetplayinblockplace.j())) { // Spigot - skip the event if throttled always = true; // force PacketPlayOutSetSlot to be sent to client to update ItemStack count } // CraftBukkit end -- 1.9.1