0976d52bbd
Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Please note that this build includes changes to meet upstreams requirements for nullability annotations. While we aim for a level of accuracy, these might not be 100% correct, if there are any issues, please speak to us on discord, or open an issue on the tracker to discuss. Bukkit Changes: 9a6a1de3 Remove nullability annotations from enum constructors 3f0591ea SPIGOT-2540: Add nullability annotations to entire Bukkit API CraftBukkit Changes: 8d8475fc SPIGOT-4666: Force parameter in HumanEntity#sleep 8b1588e2 Fix ExplosionPrimeEvent#setFire not working with EnderCrystals 39a287b7 Don't ignore newlines in PlayerListHeader/Footer Spigot Changes: cf694d87 Add nullability annotations
90 lines
4.2 KiB
Diff
90 lines
4.2 KiB
Diff
From ca740a7103a7674d27106edb8e6a7a0a8eaff361 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sat, 2 Mar 2019 14:55:01 -0500
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Subject: [PATCH] Handle Excessive Signs in Chunks creating too large of
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packets
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Also adds a limit to stop sending Sign data to client after 500
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signs per chunk to limit client lag.
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Use -DPaper.excessiveSignsLimit=500 to configure that limit, or -1
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to disable the limit and let your players be abused.
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diff --git a/src/main/java/net/minecraft/server/NetworkManager.java b/src/main/java/net/minecraft/server/NetworkManager.java
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index 553637239..30f646e42 100644
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--- a/src/main/java/net/minecraft/server/NetworkManager.java
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+++ b/src/main/java/net/minecraft/server/NetworkManager.java
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@@ -221,6 +221,15 @@ public class NetworkManager extends SimpleChannelInboundHandler<Packet<?>> {
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});
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}
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+ // Paper start
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+ java.util.List<Packet> extraPackets = packet.getExtraPackets();
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+ if (extraPackets != null && !extraPackets.isEmpty()) {
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+ for (Packet extraPacket : extraPackets) {
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+ this.dispatchPacket(extraPacket, genericfuturelistener);
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+ }
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+ }
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+ // Paper end
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+
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}
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// Paper start - Async-Anti-Xray - Stop dispatching further packets and return false if the peeked packet is a chunk packet which is not ready
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diff --git a/src/main/java/net/minecraft/server/Packet.java b/src/main/java/net/minecraft/server/Packet.java
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index 2d8e6a2f4..8d0965a05 100644
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--- a/src/main/java/net/minecraft/server/Packet.java
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+++ b/src/main/java/net/minecraft/server/Packet.java
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@@ -11,6 +11,7 @@ public interface Packet<T extends PacketListener> {
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void a(T t0);
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// Paper start
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+ default java.util.List<Packet> getExtraPackets() { return null; }
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default boolean packetTooLarge(NetworkManager manager) {
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return false;
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}
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diff --git a/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java b/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
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index 4a57e8a3e..eb54bdb64 100644
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--- a/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
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+++ b/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
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@@ -23,6 +23,13 @@ public class PacketPlayOutMapChunk implements Packet<PacketListenerPlayOut> {
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this.ready = true; // Paper - Async-Anti-Xray - Set the ready flag to true
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}
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+ // Paper start
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+ private final java.util.List<Packet> extraPackets = new java.util.ArrayList<>();
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+ private static final int SKIP_EXCESSIVE_SIGNS_LIMIT = Integer.getInteger("Paper.excessiveSignsLimit", 500);
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+ public java.util.List<Packet> getExtraPackets() {
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+ return extraPackets;
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+ }
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+ // Paper end
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public PacketPlayOutMapChunk(Chunk chunk, int i) {
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ChunkPacketInfo<IBlockData> chunkPacketInfo = chunk.world.chunkPacketBlockController.getChunkPacketInfo(this, chunk, i); // Paper - Anti-Xray - Add chunk packet info
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this.a = chunk.locX;
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@@ -41,6 +48,7 @@ public class PacketPlayOutMapChunk implements Packet<PacketListenerPlayOut> {
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this.c = this.writeChunk(new PacketDataSerializer(this.h()), chunk, flag, i, chunkPacketInfo); // Paper - Anti-Xray - Add chunk packet info
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this.e = Lists.newArrayList();
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Iterator iterator = chunk.getTileEntities().entrySet().iterator();
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+ int totalSigns = 0; // Paper
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while (iterator.hasNext()) {
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Entry<BlockPosition, TileEntity> entry = (Entry) iterator.next();
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@@ -49,6 +57,15 @@ public class PacketPlayOutMapChunk implements Packet<PacketListenerPlayOut> {
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int j = blockposition.getY() >> 4;
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if (this.f() || (i & 1 << j) != 0) {
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+ // Paper start - send signs separately
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+ if (tileentity instanceof TileEntitySign) {
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+ if (SKIP_EXCESSIVE_SIGNS_LIMIT < 0 || ++totalSigns < SKIP_EXCESSIVE_SIGNS_LIMIT) {
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+ extraPackets.add(tileentity.getUpdatePacket());
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+ }
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+ continue;
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+ }
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+ // Paper end
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+
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NBTTagCompound nbttagcompound = tileentity.aa_();
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if (tileentity instanceof TileEntitySkull) { TileEntitySkull.sanitizeTileEntityUUID(nbttagcompound); } // Paper
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--
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2.21.0
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