103 lines
5.5 KiB
Diff
103 lines
5.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Mariell Hoversholm <proximyst@proximyst.com>
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Date: Thu, 30 Apr 2020 16:56:54 +0200
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Subject: [PATCH] Add Raw Byte ItemStack Serialization
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Serializes using NBT which is safer for server data migrations than bukkits format.
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diff --git a/src/main/java/net/minecraft/server/DataConverterRegistry.java b/src/main/java/net/minecraft/server/DataConverterRegistry.java
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index 77c77973bb335cc89dae31bef2bbbcd4adc1d14b..d957d5fc2dc724cdda553e3a67ffe65e1e41c304 100644
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--- a/src/main/java/net/minecraft/server/DataConverterRegistry.java
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+++ b/src/main/java/net/minecraft/server/DataConverterRegistry.java
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@@ -22,6 +22,7 @@ public class DataConverterRegistry {
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return datafixerbuilder.build(SystemUtils.e());
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}
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+ public static DataFixer getDataFixer() { return a(); } // Paper - OBFHELPER
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public static DataFixer a() {
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return DataConverterRegistry.c;
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}
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diff --git a/src/main/java/net/minecraft/server/ItemStack.java b/src/main/java/net/minecraft/server/ItemStack.java
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index d6e43313bf0c678cf78fe77de2f8f4b6f819e3f4..ea60880c6f15b1a39579896d78cf641563621aa4 100644
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--- a/src/main/java/net/minecraft/server/ItemStack.java
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+++ b/src/main/java/net/minecraft/server/ItemStack.java
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@@ -140,6 +140,7 @@ public final class ItemStack {
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this.checkEmpty();
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}
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+ public static ItemStack fromCompound(NBTTagCompound nbttagcompound) { return a(nbttagcompound); } // Paper - OBFHELPER
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public static ItemStack a(NBTTagCompound nbttagcompound) {
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try {
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return new ItemStack(nbttagcompound);
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diff --git a/src/main/java/net/minecraft/server/NBTCompressedStreamTools.java b/src/main/java/net/minecraft/server/NBTCompressedStreamTools.java
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index 2322c0c8c5aacebb6317eab8ce4245554f6d9d55..3e6f878cdbbf5ebfa7fb390745ead135c1c4dee8 100644
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--- a/src/main/java/net/minecraft/server/NBTCompressedStreamTools.java
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+++ b/src/main/java/net/minecraft/server/NBTCompressedStreamTools.java
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@@ -14,6 +14,7 @@ import java.util.zip.GZIPOutputStream;
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public class NBTCompressedStreamTools {
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+ public static NBTTagCompound readNBT(InputStream inputstream) throws IOException { return a(inputstream); } // Paper - OBFHELPER
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public static NBTTagCompound a(InputStream inputstream) throws IOException {
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DataInputStream datainputstream = new DataInputStream(new BufferedInputStream(new GZIPInputStream(inputstream)));
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Throwable throwable = null;
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@@ -43,6 +44,7 @@ public class NBTCompressedStreamTools {
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return nbttagcompound;
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}
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+ public static void writeNBT(NBTTagCompound nbttagcompound, OutputStream outputstream) throws IOException { a(nbttagcompound, outputstream); } // Paper - OBFHELPER
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public static void a(NBTTagCompound nbttagcompound, OutputStream outputstream) throws IOException {
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DataOutputStream dataoutputstream = new DataOutputStream(new BufferedOutputStream(new GZIPOutputStream(outputstream)));
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Throwable throwable = null;
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diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
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index 770375ed4207920e71d2d0799c611c4b3cdbe6f7..549ba4d8068763f41c2307a9c88f0b3f304b17e9 100644
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--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
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+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
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@@ -313,6 +313,46 @@ public final class CraftMagicNumbers implements UnsafeValues {
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public boolean isSupportedApiVersion(String apiVersion) {
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return apiVersion != null && SUPPORTED_API.contains(apiVersion);
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}
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+
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+ @Override
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+ public byte[] serializeItem(ItemStack item) {
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+ Preconditions.checkNotNull(item, "null cannot be serialized");
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+ Preconditions.checkArgument(item.getType() != Material.AIR, "air cannot be serialized");
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+
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+ java.io.ByteArrayOutputStream outputStream = new java.io.ByteArrayOutputStream();
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+ NBTTagCompound compound = (item instanceof CraftItemStack ? ((CraftItemStack) item).getHandle() : CraftItemStack.asNMSCopy(item)).save(new NBTTagCompound());
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+ compound.setInt("DataVersion", getDataVersion());
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+ try {
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+ net.minecraft.server.NBTCompressedStreamTools.writeNBT(
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+ compound,
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+ outputStream
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+ );
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+ } catch (IOException ex) {
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+ throw new RuntimeException(ex);
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+ }
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+
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+ return outputStream.toByteArray();
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+ }
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+
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+ @Override
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+ public ItemStack deserializeItem(byte[] data) {
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+ Preconditions.checkNotNull(data, "null cannot be deserialized");
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+ Preconditions.checkArgument(data.length > 0, "cannot deserialize nothing");
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+
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+ try {
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+ NBTTagCompound compound = net.minecraft.server.NBTCompressedStreamTools.readNBT(
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+ new java.io.ByteArrayInputStream(data)
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+ );
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+ int dataVersion = compound.getInt("DataVersion");
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+
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+ Preconditions.checkArgument(dataVersion <= getDataVersion(), "Newer version! Server downgrades are not supported!");
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+ Dynamic<NBTBase> converted = DataConverterRegistry.getDataFixer().update(DataConverterTypes.ITEM_STACK, new Dynamic<NBTBase>(DynamicOpsNBT.a, compound), -1, getDataVersion());
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+ return CraftItemStack.asCraftMirror(net.minecraft.server.ItemStack.fromCompound((NBTTagCompound) converted.getValue()));
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+ } catch (IOException ex) {
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+ com.destroystokyo.paper.util.SneakyThrow.sneaky(ex);
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+ throw new RuntimeException();
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+ }
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+ }
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// Paper end
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/**
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