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89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
55 lines
2.7 KiB
Diff
55 lines
2.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Thu, 8 Oct 2020 00:00:25 -0400
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Subject: [PATCH] Fix "Not a string" Map Conversion spam
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The maps did convert successfully, but had noisy logs due to Spigot
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implementing this logic incorrectly.
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This stops the spam by converting the old format to new before
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requesting the world.
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Track spigot issue to see when fixed: https://hub.spigotmc.org/jira/browse/SPIGOT-6181
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diff --git a/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java b/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
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index 8f144a357174bbe096ac9b38a5e67a61127d7b87..0ca0808c5eeeba969c048b422af37a273217ff52 100644
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--- a/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
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+++ b/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
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@@ -15,6 +15,8 @@ import net.minecraft.core.BlockPos;
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import net.minecraft.nbt.CompoundTag;
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import net.minecraft.nbt.ListTag;
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import net.minecraft.nbt.NbtOps;
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+import net.minecraft.nbt.NumericTag;
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+import net.minecraft.nbt.StringTag;
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import net.minecraft.nbt.Tag;
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import net.minecraft.network.chat.Component;
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import net.minecraft.network.protocol.Packet;
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@@ -108,7 +110,26 @@ public class MapItemSavedData extends SavedData {
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}
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public static MapItemSavedData load(CompoundTag nbt) {
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- DataResult<ResourceKey<Level>> dataresult = DimensionType.parseLegacy(new Dynamic(NbtOps.INSTANCE, nbt.get("dimension"))); // CraftBukkit - decompile error
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+ // Paper start - fix "Not a string" spam
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+ Tag dimension = nbt.get("dimension");
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+ if (dimension instanceof NumericTag && ((NumericTag) dimension).getAsInt() >= CraftWorld.CUSTOM_DIMENSION_OFFSET) {
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+ long least = nbt.getLong("UUIDLeast");
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+ long most = nbt.getLong("UUIDMost");
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+
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+ if (least != 0L && most != 0L) {
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+ UUID uuid = new UUID(most, least);
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+ CraftWorld world = (CraftWorld) Bukkit.getWorld(uuid);
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+ if (world != null) {
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+ dimension = StringTag.valueOf("minecraft:" + world.getName().toLowerCase(java.util.Locale.ENGLISH));
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+ } else {
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+ dimension = StringTag.valueOf("bukkit:_invalidworld_");
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+ }
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+ } else {
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+ dimension = StringTag.valueOf("bukkit:_invalidworld_");
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+ }
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+ }
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+ DataResult<ResourceKey<Level>> dataresult = DimensionType.parseLegacy(new Dynamic(NbtOps.INSTANCE, dimension)); // CraftBukkit - decompile error
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+ // Paper end - fix "Not a string" spam
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Logger logger = MapItemSavedData.LOGGER;
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Objects.requireNonNull(logger);
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