Paper/Spigot-Server-Patches/0363-Handle-Excessive-Signs-in-Chunks-creating-too-large-.patch
Spottedleaf 2f782a6652 Updated Upstream (CraftBukkit)
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

CraftBukkit Changes:
17543ecf SPIGOT-5035: Error Using Virtual Merchant GUI
0fc6922b SPIGOT-5028: Villager#setVillagerExperience() doesn't work
bdbdbe44 SPIGOT-5024: Fox error - Unknown target reason
2019-06-06 16:56:51 +01:00

91 lines
3.8 KiB
Diff

From f84a25850ddd3248c6fa8dad8a8d06612383dcf6 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 2 Mar 2019 14:55:01 -0500
Subject: [PATCH] Handle Excessive Signs in Chunks creating too large of
packets
Also adds a limit to stop sending Sign data to client after 500
signs per chunk to limit client lag.
Use -DPaper.excessiveSignsLimit=500 to configure that limit, or -1
to disable the limit and let your players be abused.
diff --git a/src/main/java/net/minecraft/server/NetworkManager.java b/src/main/java/net/minecraft/server/NetworkManager.java
index 23fcdea176..ba23d28335 100644
--- a/src/main/java/net/minecraft/server/NetworkManager.java
+++ b/src/main/java/net/minecraft/server/NetworkManager.java
@@ -220,6 +220,15 @@ public class NetworkManager extends SimpleChannelInboundHandler<Packet<?>> {
});
}
+ // Paper start
+ java.util.List<Packet> extraPackets = packet.getExtraPackets();
+ if (extraPackets != null && !extraPackets.isEmpty()) {
+ for (Packet extraPacket : extraPackets) {
+ this.dispatchPacket(extraPacket, genericfuturelistener);
+ }
+ }
+ // Paper end
+
}
private void sendPacketQueue() { this.o(); } // Paper - OBFHELPER
diff --git a/src/main/java/net/minecraft/server/Packet.java b/src/main/java/net/minecraft/server/Packet.java
index 2d8e6a2f4a..8d0965a053 100644
--- a/src/main/java/net/minecraft/server/Packet.java
+++ b/src/main/java/net/minecraft/server/Packet.java
@@ -11,6 +11,7 @@ public interface Packet<T extends PacketListener> {
void a(T t0);
// Paper start
+ default java.util.List<Packet> getExtraPackets() { return null; }
default boolean packetTooLarge(NetworkManager manager) {
return false;
}
diff --git a/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java b/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
index 58eccd9c63..ef71a1feb3 100644
--- a/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
+++ b/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
@@ -20,6 +20,15 @@ public class PacketPlayOutMapChunk implements Packet<PacketListenerPlayOut> {
public PacketPlayOutMapChunk() {}
+ // Paper start
+ private final java.util.List<Packet> extraPackets = new java.util.ArrayList<>();
+ private static final int SKIP_EXCESSIVE_SIGNS_LIMIT = Integer.getInteger("Paper.excessiveSignsLimit", 500);
+
+ @Override
+ public java.util.List<Packet> getExtraPackets() {
+ return extraPackets;
+ }
+ // Paper end
public PacketPlayOutMapChunk(Chunk chunk, int i) {
ChunkCoordIntPair chunkcoordintpair = chunk.getPos();
@@ -42,6 +51,7 @@ public class PacketPlayOutMapChunk implements Packet<PacketListenerPlayOut> {
this.c = this.a(new PacketDataSerializer(this.i()), chunk, i);
this.f = Lists.newArrayList();
iterator = chunk.getTileEntities().entrySet().iterator();
+ int totalSigns = 0; // Paper
while (iterator.hasNext()) {
entry = (Entry) iterator.next();
@@ -50,6 +60,14 @@ public class PacketPlayOutMapChunk implements Packet<PacketListenerPlayOut> {
int j = blockposition.getY() >> 4;
if (this.f() || (i & 1 << j) != 0) {
+ // Paper start - send signs separately
+ if (tileentity instanceof TileEntitySign) {
+ if (SKIP_EXCESSIVE_SIGNS_LIMIT < 0 || ++totalSigns < SKIP_EXCESSIVE_SIGNS_LIMIT) {
+ this.extraPackets.add(tileentity.getUpdatePacket());
+ }
+ continue;
+ }
+ // Paper end
NBTTagCompound nbttagcompound = tileentity.b();
if (tileentity instanceof TileEntitySkull) { TileEntitySkull.sanitizeTileEntityUUID(nbttagcompound); } // Paper
--
2.21.0