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https://github.com/PaperMC/Paper.git
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63 lines
4.2 KiB
Diff
63 lines
4.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Fri, 27 Dec 2019 09:42:26 -0800
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Subject: [PATCH] Guard against serializing mismatching chunk coordinate
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Should help if something dumb happens
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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
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index be67dc16bf70e4517efd213ca9002f116f60b57c..6c28a611b9b79c3322ab07883972c07b3bfc3073 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
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@@ -67,6 +67,13 @@ public class ChunkSerializer {
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private static final Logger LOGGER = LogManager.getLogger();
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+ // Paper start - guard against serializing mismatching coordinates
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+ // TODO Note: This needs to be re-checked each update
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+ public static ChunkPos getChunkCoordinate(CompoundTag chunkData) {
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+ CompoundTag levelData = chunkData.getCompound("Level");
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+ return new ChunkPos(levelData.getInt("xPos"), levelData.getInt("zPos"));
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+ }
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+ // Paper end
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// Paper start
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public static final class InProgressChunkHolder {
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@@ -92,8 +99,8 @@ public class ChunkSerializer {
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// Paper end
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ChunkGenerator chunkgenerator = worldserver.getChunkSource().getGenerator();
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BiomeSource worldchunkmanager = chunkgenerator.getBiomeSource();
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- CompoundTag nbttagcompound1 = nbttagcompound.getCompound("Level");
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- ChunkPos chunkcoordintpair1 = new ChunkPos(nbttagcompound1.getInt("xPos"), nbttagcompound1.getInt("zPos"));
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+ CompoundTag nbttagcompound1 = nbttagcompound.getCompound("Level"); // Paper - diff on change, see ChunkRegionLoader#getChunkCoordinate
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+ ChunkPos chunkcoordintpair1 = new ChunkPos(nbttagcompound1.getInt("xPos"), nbttagcompound1.getInt("zPos")); // Paper - diff on change, see ChunkRegionLoader#getChunkCoordinate
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if (!Objects.equals(chunkcoordintpair, chunkcoordintpair1)) {
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ChunkSerializer.LOGGER.error("Chunk file at {} is in the wrong location; relocating. (Expected {}, got {})", chunkcoordintpair, chunkcoordintpair, chunkcoordintpair1);
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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
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index 684442b7175e30b6d4cafb2f7d2d4c10517cc33d..1af804c5c6fb2b20ea3f020610763c1d7dcee110 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkStorage.java
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@@ -13,6 +13,7 @@ import net.minecraft.SharedConstants;
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import net.minecraft.nbt.CompoundTag;
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import net.minecraft.nbt.NbtUtils;
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import net.minecraft.resources.ResourceKey;
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+import net.minecraft.server.level.ChunkMap;
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import net.minecraft.server.level.ServerChunkCache;
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import net.minecraft.server.level.ServerLevel;
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import net.minecraft.util.datafix.DataFixTypes;
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@@ -119,6 +120,13 @@ public class ChunkStorage implements AutoCloseable {
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public void write(ChunkPos chunkcoordintpair, CompoundTag nbttagcompound) throws IOException { write(chunkcoordintpair, nbttagcompound); } // Paper OBFHELPER
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public void write(ChunkPos chunkcoordintpair, CompoundTag nbttagcompound) throws IOException { // Paper - OBFHELPER - (Switched around for safety)
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+ // Paper start
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+ if (!chunkcoordintpair.equals(ChunkSerializer.getChunkCoordinate(nbttagcompound))) {
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+ String world = (this instanceof ChunkMap) ? ((ChunkMap)this).level.getWorld().getName() : null;
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+ throw new IllegalArgumentException("Chunk coordinate and serialized data do not have matching coordinates, trying to serialize coordinate " + chunkcoordintpair.toString()
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+ + " but compound says coordinate is " + ChunkSerializer.getChunkCoordinate(nbttagcompound).toString() + (world == null ? " for an unknown world" : (" for world: " + world)));
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+ }
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+ // Paper end
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this.regionFileCache.write(chunkcoordintpair, nbttagcompound);
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if (this.legacyStructureHandler != null) {
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synchronized (this.persistentDataLock) { // Paper - Async chunk loading
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