mirror of
https://github.com/PaperMC/Paper.git
synced 2024-12-30 16:19:03 +01:00
37 lines
2.2 KiB
Diff
37 lines
2.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Zach Brown <zach@zachbr.io>
|
|
Date: Tue, 23 Jul 2019 20:44:47 -0500
|
|
Subject: [PATCH] Do not let the server load chunks from newer versions
|
|
|
|
If the server attempts to load a chunk generated by a newer version of
|
|
the game, immediately stop the server to prevent data corruption.
|
|
|
|
You can override this functionality at your own peril.
|
|
|
|
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 4138ba8bdf6f359327dfc86d3402b787ae58c818..f0f38f1a7603cd06aba6adefd370d40b97f2e5b8 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
|
|
@@ -128,9 +128,22 @@ public class ChunkSerializer {
|
|
return holder.protoChunk;
|
|
}
|
|
|
|
+ // Paper start
|
|
+ private static final int CURRENT_DATA_VERSION = net.minecraft.SharedConstants.getCurrentVersion().getDataVersion().getVersion();
|
|
+ private static final boolean JUST_CORRUPT_IT = Boolean.getBoolean("Paper.ignoreWorldDataVersion");
|
|
+ // Paper end
|
|
public static InProgressChunkHolder loadChunk(ServerLevel world, PoiManager poiStorage, ChunkPos chunkPos, CompoundTag nbt, boolean distinguish) {
|
|
java.util.ArrayDeque<Runnable> tasksToExecuteOnMain = new java.util.ArrayDeque<>();
|
|
// Paper end
|
|
+ // Paper start - Do NOT attempt to load chunks saved with newer versions
|
|
+ if (nbt.contains("DataVersion", 99)) {
|
|
+ int dataVersion = nbt.getInt("DataVersion");
|
|
+ if (!JUST_CORRUPT_IT && dataVersion > CURRENT_DATA_VERSION) {
|
|
+ new RuntimeException("Server attempted to load chunk saved with newer version of minecraft! " + dataVersion + " > " + CURRENT_DATA_VERSION).printStackTrace();
|
|
+ System.exit(1);
|
|
+ }
|
|
+ }
|
|
+ // Paper end
|
|
ChunkPos chunkcoordintpair1 = new ChunkPos(nbt.getInt("xPos"), nbt.getInt("zPos")); // Paper - diff on change, see ChunkSerializer#getChunkCoordinate
|
|
|
|
if (!Objects.equals(chunkPos, chunkcoordintpair1)) {
|