papermc/Spigot-Server-Patches/0418-Guard-against-serializing-mismatching-chunk-coordina.patch
Aikar 57dd397155
Updated Upstream (Bukkit/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

Bukkit Changes:
b999860d SPIGOT-2304: Add LootGenerateEvent

CraftBukkit Changes:
77fd87e4 SPIGOT-2304: Implement LootGenerateEvent
a1a705ee SPIGOT-5566: Doused campfires & fires should call EntityChangeBlockEvent
41712edd SPIGOT-5707: PersistentDataHolder not Persistent on API dropped Item
2020-05-01 18:03:57 -04:00

57 lines
3.7 KiB
Diff

From bd2c97b4e2a476c2170825a496cc155b9380db25 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Fri, 27 Dec 2019 09:42:26 -0800
Subject: [PATCH] Guard against serializing mismatching chunk coordinate
Should help if something dumb happens
diff --git a/src/main/java/net/minecraft/server/ChunkRegionLoader.java b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
index 7389aba1a4..938c747dcc 100644
--- a/src/main/java/net/minecraft/server/ChunkRegionLoader.java
+++ b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
@@ -23,6 +23,13 @@ public class ChunkRegionLoader {
private static final Logger LOGGER = LogManager.getLogger();
+ // Paper start - guard against serializing mismatching coordinates
+ // TODO Note: This needs to be re-checked each update
+ public static ChunkCoordIntPair getChunkCoordinate(NBTTagCompound chunkData) {
+ NBTTagCompound levelData = chunkData.getCompound("Level");
+ return new ChunkCoordIntPair(levelData.getInt("xPos"), levelData.getInt("zPos"));
+ }
+ // Paper end
// Paper start
public static final class InProgressChunkHolder {
@@ -48,8 +55,8 @@ public class ChunkRegionLoader {
// Paper end
ChunkGenerator<?> chunkgenerator = worldserver.getChunkProvider().getChunkGenerator();
WorldChunkManager worldchunkmanager = chunkgenerator.getWorldChunkManager();
- NBTTagCompound nbttagcompound1 = nbttagcompound.getCompound("Level");
- ChunkCoordIntPair chunkcoordintpair1 = new ChunkCoordIntPair(nbttagcompound1.getInt("xPos"), nbttagcompound1.getInt("zPos"));
+ NBTTagCompound nbttagcompound1 = nbttagcompound.getCompound("Level"); // Paper - diff on change, see ChunkRegionLoader#getChunkCoordinate
+ ChunkCoordIntPair chunkcoordintpair1 = new ChunkCoordIntPair(nbttagcompound1.getInt("xPos"), nbttagcompound1.getInt("zPos")); // Paper - diff on change, see ChunkRegionLoader#getChunkCoordinate
if (!Objects.equals(chunkcoordintpair, chunkcoordintpair1)) {
ChunkRegionLoader.LOGGER.error("Chunk file at {} is in the wrong location; relocating. (Expected {}, got {})", chunkcoordintpair, chunkcoordintpair, chunkcoordintpair1);
diff --git a/src/main/java/net/minecraft/server/IChunkLoader.java b/src/main/java/net/minecraft/server/IChunkLoader.java
index 134c76065b..25c8b131fe 100644
--- a/src/main/java/net/minecraft/server/IChunkLoader.java
+++ b/src/main/java/net/minecraft/server/IChunkLoader.java
@@ -106,6 +106,13 @@ public class IChunkLoader extends RegionFileCache implements AutoCloseable {
//
public void a(ChunkCoordIntPair chunkcoordintpair, NBTTagCompound nbttagcompound) throws IOException { write(chunkcoordintpair, nbttagcompound); } // Paper OBFHELPER
public void write(ChunkCoordIntPair chunkcoordintpair, NBTTagCompound nbttagcompound) throws IOException { // Paper - OBFHELPER - (Switched around for safety)
+ // Paper start
+ if (!chunkcoordintpair.equals(ChunkRegionLoader.getChunkCoordinate(nbttagcompound))) {
+ String world = (this instanceof PlayerChunkMap) ? ((PlayerChunkMap)this).world.getWorld().getName() : null;
+ throw new IllegalArgumentException("Chunk coordinate and serialized data do not have matching coordinates, trying to serialize coordinate " + chunkcoordintpair.toString()
+ + " but compound says coordinate is " + ChunkRegionLoader.getChunkCoordinate(nbttagcompound).toString() + (world == null ? " for an unknown world" : (" for world: " + world)));
+ }
+ // Paper end
super.write(chunkcoordintpair, nbttagcompound);
if (this.c != null) {
synchronized (this.persistentDataLock) { // Paper - Async chunk loading
--
2.26.2