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Allow enabling sand duping (#10191)

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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.
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Owen 2024-03-03 17:05:34 -05:00 • committed by GitHub
parent b21eb4d9a4
commit 89d51d5f29
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673 changed files with 157 additions and 189 deletions
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patches/server/0782-Added-byte-array-serialization-deserialization-for-P.patch Normal file
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@ -0,0 +1,39 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Nex <nex@bits.team>
Date: Thu, 24 Feb 2022 16:28:07 +0100
Subject: [PATCH] Added byte array serialization/deserialization for
PersistentDataContainers
diff --git a/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java b/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
index 984e988a47aa55a3fd92198e379d0f92f511daef..5a4e7e7150b7c137b077e0b393f17ed35b5aec34 100644
--- a/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
+++ b/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
@@ -184,4 +184,27 @@ public class CraftPersistentDataContainer implements PersistentDataContainer {
this.customDataTags.clear();
}
// Paper end
+
+ // Paper start - byte array serialization
+ @Override
+ public byte[] serializeToBytes() throws java.io.IOException {
+ final net.minecraft.nbt.CompoundTag root = this.toTagCompound();
+ final java.io.ByteArrayOutputStream byteArrayOutput = new java.io.ByteArrayOutputStream();
+ try (final java.io.DataOutputStream dataOutput = new java.io.DataOutputStream(byteArrayOutput)) {
+ net.minecraft.nbt.NbtIo.write(root, dataOutput);
+ return byteArrayOutput.toByteArray();
+ }
+ }
+
+ @Override
+ public void readFromBytes(final byte[] bytes, final boolean clear) throws java.io.IOException {
+ if (clear) {
+ this.clear();
+ }
+ try (final java.io.DataInputStream dataInput = new java.io.DataInputStream(new java.io.ByteArrayInputStream(bytes))) {
+ final net.minecraft.nbt.CompoundTag compound = net.minecraft.nbt.NbtIo.read(dataInput);
+ this.putAll(compound);
+ }
+ }
+ // Paper end - byte array serialization
}