Paper/patches/server-remapped/0394-Guard-against-serializing-mismatching-chunk-coordina.patch
Mariell Hoversholm a207d14a0e
Rename all patches to correct numbering scheme
Signed-off-by: Mariell Hoversholm <proximyst@proximyst.com>
2021-06-11 15:46:44 +02:00

63 lines
4.2 KiB
Diff

From 0000000000000000000000000000000000000000 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/world/level/chunk/storage/ChunkSerializer.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
index be67dc16bf70e4517efd213ca9002f116f60b57c..6c28a611b9b79c3322ab07883972c07b3bfc3073 100644
--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
@@ -67,6 +67,13 @@ public class ChunkSerializer {
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 ChunkPos getChunkCoordinate(CompoundTag chunkData) {
+ CompoundTag levelData = chunkData.getCompound("Level");
+ return new ChunkPos(levelData.getInt("xPos"), levelData.getInt("zPos"));
+ }
+ // Paper end
// Paper start
public static final class InProgressChunkHolder {
@@ -92,8 +99,8 @@ public class ChunkSerializer {
// Paper end
ChunkGenerator chunkgenerator = worldserver.getChunkSource().getGenerator();
BiomeSource worldchunkmanager = chunkgenerator.getBiomeSource();
- CompoundTag nbttagcompound1 = nbttagcompound.getCompound("Level");
- ChunkPos chunkcoordintpair1 = new ChunkPos(nbttagcompound1.getInt("xPos"), nbttagcompound1.getInt("zPos"));
+ CompoundTag nbttagcompound1 = nbttagcompound.getCompound("Level"); // Paper - diff on change, see ChunkRegionLoader#getChunkCoordinate
+ ChunkPos chunkcoordintpair1 = new ChunkPos(nbttagcompound1.getInt("xPos"), nbttagcompound1.getInt("zPos")); // Paper - diff on change, see ChunkRegionLoader#getChunkCoordinate
if (!Objects.equals(chunkcoordintpair, chunkcoordintpair1)) {
ChunkSerializer.LOGGER.error("Chunk file at {} is in the wrong location; relocating. (Expected {}, got {})", chunkcoordintpair, chunkcoordintpair, chunkcoordintpair1);
diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
index 684442b7175e30b6d4cafb2f7d2d4c10517cc33d..1af804c5c6fb2b20ea3f020610763c1d7dcee110 100644
--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
@@ -13,6 +13,7 @@ import net.minecraft.SharedConstants;
import net.minecraft.nbt.CompoundTag;
import net.minecraft.nbt.NbtUtils;
import net.minecraft.resources.ResourceKey;
+import net.minecraft.server.level.ChunkMap;
import net.minecraft.server.level.ServerChunkCache;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.util.datafix.DataFixTypes;
@@ -119,6 +120,13 @@ public class ChunkStorage implements AutoCloseable {
public void write(ChunkPos chunkcoordintpair, CompoundTag nbttagcompound) throws IOException { write(chunkcoordintpair, nbttagcompound); } // Paper OBFHELPER
public void write(ChunkPos chunkcoordintpair, CompoundTag nbttagcompound) throws IOException { // Paper - OBFHELPER - (Switched around for safety)
+ // Paper start
+ if (!chunkcoordintpair.equals(ChunkSerializer.getChunkCoordinate(nbttagcompound))) {
+ String world = (this instanceof ChunkMap) ? ((ChunkMap)this).level.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 " + ChunkSerializer.getChunkCoordinate(nbttagcompound).toString() + (world == null ? " for an unknown world" : (" for world: " + world)));
+ }
+ // Paper end
this.regionFileCache.write(chunkcoordintpair, nbttagcompound);
if (this.legacyStructureHandler != null) {
synchronized (this.persistentDataLock) { // Paper - Async chunk loading