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Paper/patches/server/0416-Support-old-UUID-format-for-NBT.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 29 Jun 2020 03:26:17 -0400
Subject: [PATCH] Support old UUID format for NBT
We have stored UUID in plenty of places that did not get DFU'd
So just look for old format and load it if it exists.
diff --git a/src/main/java/net/minecraft/nbt/CompoundTag.java b/src/main/java/net/minecraft/nbt/CompoundTag.java
index 135530bc9d7ecd0348ace6474f4ca6d2e1bad283..4c8f2dbdd6e384be026ae1c890096f89fd744eb0 100644
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--- a/src/main/java/net/minecraft/nbt/CompoundTag.java
+++ b/src/main/java/net/minecraft/nbt/CompoundTag.java
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@@ -237,6 +237,12 @@ public class CompoundTag implements Tag {
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}
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public void putUUID(String key, UUID value) {
+ // Paper start - support old format
+ if (this.contains(key + "Most", net.minecraft.nbt.Tag.TAG_ANY_NUMERIC) && this.contains(key + "Least", net.minecraft.nbt.Tag.TAG_ANY_NUMERIC)) {
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+ this.tags.remove(key + "Most");
+ this.tags.remove(key + "Least");
+ }
+ // Paper end
this.tags.put(key, NbtUtils.createUUID(value));
}
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@@ -245,10 +251,20 @@ public class CompoundTag implements Tag {
* You must use {@link #hasUUID(String)} before or else it <b>will</b> throw an NPE.
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*/
public UUID getUUID(String key) {
+ // Paper start - support old format
+ if (!contains(key, 11) && this.contains(key + "Most", net.minecraft.nbt.Tag.TAG_ANY_NUMERIC) && this.contains(key + "Least", net.minecraft.nbt.Tag.TAG_ANY_NUMERIC)) {
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+ return new UUID(this.getLong(key + "Most"), this.getLong(key + "Least"));
+ }
+ // Paper end
return NbtUtils.loadUUID(this.get(key));
}
public boolean hasUUID(String key) {
+ // Paper start - support old format
+ if (this.contains(key + "Most", net.minecraft.nbt.Tag.TAG_ANY_NUMERIC) && this.contains(key + "Least", net.minecraft.nbt.Tag.TAG_ANY_NUMERIC)) {
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+ return true;
+ }
+ // Paper end
Tag tag = this.get(key);
return tag != null && tag.getType() == IntArrayTag.TYPE && ((IntArrayTag)tag).getAsIntArray().length == 4;
}
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diff --git a/src/main/java/net/minecraft/nbt/NbtUtils.java b/src/main/java/net/minecraft/nbt/NbtUtils.java
index 4388f2a8b05f5ed2f0934c1693299a4c92072adc..18fad4f083862ace2bc56579883f548f6d697091 100644
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--- a/src/main/java/net/minecraft/nbt/NbtUtils.java
+++ b/src/main/java/net/minecraft/nbt/NbtUtils.java
@@ -72,6 +72,14 @@ public final class NbtUtils {
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@Nullable
public static GameProfile readGameProfile(CompoundTag nbt) {
UUID uUID = nbt.hasUUID("Id") ? nbt.getUUID("Id") : Util.NIL_UUID;
+ // Paper start - Support string UUIDs
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+ if (nbt.contains("Id", Tag.TAG_STRING)) {
+ try {
+ uUID = UUID.fromString(nbt.getString("Id"));
+ } catch (IllegalArgumentException ignored){
+ }
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+ }
+ // Paper end - Support string UUIDs
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String string = nbt.getString("Name");
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try {