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Do not read tile entities in chunks that are positioned outside of the chunk

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The tile entities are not accessible and so should not be loaded.
This can happen as a result of users moving regionfiles around,
which would cause a crash on Folia but would appear to function
fine on Paper.
This commit is contained in:
Spottedleaf 2023-06-18 23:04:46 -07:00
parent 183683ecc5
commit 65466558be
1 changed files with 40 additions and 11 deletions
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51
paper-server/patches/sources/net/minecraft/world/level/chunk/storage/SerializableChunkData.java.patch
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@ -109,20 +109,35 @@
}
}
@@ -289,6 +317,12 @@
@@ -287,7 +315,13 @@
if (this.chunkStatus.isOrAfter(ChunkStatus.INITIALIZE_LIGHT)) {
protochunk.setLightEngine(levellightengine);
}
}
+ }
+
+ // CraftBukkit start - load chunk persistent data from nbt - SPIGOT-6814: Already load PDC here to account for 1.17 to 1.18 chunk upgrading.
+ if (this.persistentDataContainer instanceof CompoundTag) {
+ ((ChunkAccess) object).persistentDataContainer.putAll((CompoundTag) this.persistentDataContainer);
+ }
}
+ // CraftBukkit end
+
((ChunkAccess) object).setLightCorrect(this.lightCorrect);
EnumSet<Heightmap.Types> enumset = EnumSet.noneOf(Heightmap.Types.class);
Iterator iterator1 = ((ChunkAccess) object).getPersistedStatus().heightmapsAfter().iterator();
@@ -348,6 +382,12 @@
@@ -329,6 +363,13 @@
while (iterator2.hasNext()) {
nbttagcompound = (CompoundTag) iterator2.next();
+ // Paper start - do not read tile entities positioned outside the chunk
+ final BlockPos blockposition = BlockEntity.getPosFromTag(nbttagcompound);
+ if ((blockposition.getX() >> 4) != chunkPos.x || (blockposition.getZ() >> 4) != chunkPos.z) {
+ LOGGER.warn("Tile entity serialized in chunk {} in world '{}' positioned at {} is located outside of the chunk", chunkPos, world.getWorld().getName(), blockposition);
+ continue;
+ }
+ // Paper end - do not read tile entities positioned outside the chunk
protochunk1.setBlockEntityNbt(nbttagcompound);
}
@@ -348,6 +389,12 @@
return PalettedContainer.codecRO(biomeRegistry.asHolderIdMap(), biomeRegistry.holderByNameCodec(), PalettedContainer.Strategy.SECTION_BIOMES, biomeRegistry.getOrThrow(Biomes.PLAINS));
}
@ -135,7 +150,7 @@
public static SerializableChunkData copyOf(ServerLevel world, ChunkAccess chunk) {
if (!chunk.canBeSerialized()) {
throw new IllegalArgumentException("Chunk can't be serialized: " + String.valueOf(chunk));
@@ -419,7 +459,14 @@
@@ -419,7 +466,14 @@
});
CompoundTag nbttagcompound1 = packStructureData(StructurePieceSerializationContext.fromLevel(world), chunkcoordintpair, chunk.getAllStarts(), chunk.getAllReferences());
@ -151,7 +166,7 @@
}
}
@@ -432,7 +479,7 @@
@@ -432,7 +486,7 @@
nbttagcompound.putLong("LastUpdate", this.lastUpdateTime);
nbttagcompound.putLong("InhabitedTime", this.inhabitedTime);
nbttagcompound.putString("Status", BuiltInRegistries.CHUNK_STATUS.getKey(this.chunkStatus).toString());
@ -160,7 +175,7 @@
Logger logger;
if (this.blendingData != null) {
@@ -513,6 +560,11 @@
@@ -513,6 +567,11 @@
});
nbttagcompound.put("Heightmaps", nbttagcompound2);
nbttagcompound.put("structures", this.structureData);
@ -172,7 +187,21 @@
return nbttagcompound;
}
@@ -623,6 +675,12 @@
@@ -564,6 +623,13 @@
chunk.setBlockEntityNbt(nbttagcompound);
} else {
BlockPos blockposition = BlockEntity.getPosFromTag(nbttagcompound);
+ // Paper start - do not read tile entities positioned outside the chunk
+ ChunkPos chunkPos = chunk.getPos();
+ if ((blockposition.getX() >> 4) != chunkPos.x || (blockposition.getZ() >> 4) != chunkPos.z) {
+ LOGGER.warn("Tile entity serialized in chunk " + chunkPos + " in world '" + world.getWorld().getName() + "' positioned at " + blockposition + " is located outside of the chunk");
+ continue;
+ }
+ // Paper end - do not read tile entities positioned outside the chunk
BlockEntity tileentity = BlockEntity.loadStatic(blockposition, chunk.getBlockState(blockposition), nbttagcompound, world.registryAccess());
if (tileentity != null) {
@@ -623,6 +689,12 @@
StructureStart structurestart = StructureStart.loadStaticStart(context, nbttagcompound1.getCompound(s), worldSeed);
if (structurestart != null) {