105 lines
5 KiB
Diff
105 lines
5 KiB
Diff
From b5d686ef919877ea53d010a47c7adb74e31a7b0a Mon Sep 17 00:00:00 2001
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From: Thinkofdeath <thinkofdeath@spigotmc.org>
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Date: Sun, 29 Jun 2014 21:10:34 +0100
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Subject: [PATCH] Limit block placement/interaction packets
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diff --git a/src/main/java/net/minecraft/server/PacketPlayInArmAnimation.java b/src/main/java/net/minecraft/server/PacketPlayInArmAnimation.java
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index c611db1..28cb5e3 100644
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--- a/src/main/java/net/minecraft/server/PacketPlayInArmAnimation.java
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+++ b/src/main/java/net/minecraft/server/PacketPlayInArmAnimation.java
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@@ -4,9 +4,13 @@ import java.io.IOException;
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public class PacketPlayInArmAnimation implements Packet<PacketListenerPlayIn> {
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+ public long timestamp; // Spigot
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+
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public PacketPlayInArmAnimation() {}
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- public void a(PacketDataSerializer packetdataserializer) throws IOException {}
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+ public void a(PacketDataSerializer packetdataserializer) throws IOException {
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+ timestamp = System.currentTimeMillis(); // Spigot
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+ }
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public void b(PacketDataSerializer packetdataserializer) throws IOException {}
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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 dfdd8c3..8158f1b 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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@@ -631,10 +631,23 @@ public class PlayerConnection implements PacketListenerPlayIn, IUpdatePlayerList
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// CraftBukkit end
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}
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+ // Spigot start - limit place/interactions
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+ private long lastPlace = -1;
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+ private int packets = 0;
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+
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public void a(PacketPlayInBlockPlace packetplayinblockplace) {
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PlayerConnectionUtils.ensureMainThread(packetplayinblockplace, this, this.player.u());
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WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension);
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-
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+ boolean throttled = false;
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+ if (lastPlace != -1 && packetplayinblockplace.timestamp - lastPlace < 30 && packets++ >= 4) {
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+ throttled = true;
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+ } else if ( packetplayinblockplace.timestamp - lastPlace >= 30 || lastPlace == -1 )
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+ {
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+ lastPlace = packetplayinblockplace.timestamp;
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+ packets = 0;
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+ }
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+ // Spigot end
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+
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// CraftBukkit start
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if (this.player.dead) return;
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@@ -657,7 +670,8 @@ public class PlayerConnection implements PacketListenerPlayIn, IUpdatePlayerList
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// CraftBukkit start
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int itemstackAmount = itemstack.count;
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-
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+ // Spigot start - skip the event if throttled
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+ if (!throttled) {
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// Raytrace to look for 'rogue armswings'
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float f1 = this.player.pitch;
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float f2 = this.player.yaw;
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@@ -693,6 +707,8 @@ public class PlayerConnection implements PacketListenerPlayIn, IUpdatePlayerList
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if (!cancelled) {
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this.player.playerInteractManager.useItem(this.player, this.player.world, itemstack);
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}
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+ }
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+ // Spigot end
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// CraftBukkit - notch decrements the counter by 1 in the above method with food,
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// snowballs and so forth, but he does it in a place that doesn't cause the
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@@ -718,7 +734,7 @@ public class PlayerConnection implements PacketListenerPlayIn, IUpdatePlayerList
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}
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if (this.checkMovement && this.player.e((double) blockposition.getX() + 0.5D, (double) blockposition.getY() + 0.5D, (double) blockposition.getZ() + 0.5D) < 64.0D && !this.minecraftServer.a(worldserver, blockposition, this.player) && worldserver.getWorldBorder().a(blockposition)) {
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- always = !this.player.playerInteractManager.interact(this.player, worldserver, itemstack, blockposition, enumdirection, packetplayinblockplace.d(), packetplayinblockplace.e(), packetplayinblockplace.f());
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+ always = throttled || !this.player.playerInteractManager.interact(this.player, worldserver, itemstack, blockposition, enumdirection, packetplayinblockplace.d(), packetplayinblockplace.e(), packetplayinblockplace.f());
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}
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flag = true;
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@@ -1135,6 +1151,19 @@ public class PlayerConnection implements PacketListenerPlayIn, IUpdatePlayerList
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public void a(PacketPlayInArmAnimation packetplayinarmanimation) {
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if (this.player.dead) return; // CraftBukkit
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PlayerConnectionUtils.ensureMainThread(packetplayinarmanimation, this, this.player.u());
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+ // Spigot start
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+ boolean throttled = false;
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+ if (lastPlace != -1 && packetplayinarmanimation.timestamp - lastPlace < 30 && packets++ >= 4) {
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+ throttled = true;
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+ } else if ( packetplayinarmanimation.timestamp - lastPlace >= 30 || lastPlace == -1 )
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+ {
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+ lastPlace = packetplayinarmanimation.timestamp;
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+ packets = 0;
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+ }
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+ if (throttled) {
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+ return;
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+ }
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+ // Spigot end
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this.player.z();
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// CraftBukkit start - Raytrace to look for 'rogue armswings'
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float f1 = this.player.pitch;
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--
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2.1.0
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