From 91f92dfcdf9c6d9f9de49a16ab9d0456ac680667 Mon Sep 17 00:00:00 2001 From: Aikar Date: Tue, 22 Nov 2016 00:40:42 -0500 Subject: [PATCH] Fix client rendering skulls from same user See: https://github.com/PaperMC/Paper/issues/1304 Changes the UUID sent to client to be based on either the texture payload, or random. This allows the client to render multiple skull textures from the same user, for when different skins were used when skull was made. diff --git a/src/main/java/net/minecraft/server/ItemStack.java b/src/main/java/net/minecraft/server/ItemStack.java index 2acd02f2f4..ca1bd02995 100644 --- a/src/main/java/net/minecraft/server/ItemStack.java +++ b/src/main/java/net/minecraft/server/ItemStack.java @@ -54,7 +54,7 @@ public final class ItemStack { // Paper end @Deprecated private Item item; - private NBTTagCompound tag; + NBTTagCompound tag; // Paper -> package private private boolean h; private EntityItemFrame i; private ShapeDetectorBlock j; diff --git a/src/main/java/net/minecraft/server/PacketDataSerializer.java b/src/main/java/net/minecraft/server/PacketDataSerializer.java index 0d67676f7d..fa2d3ce8cb 100644 --- a/src/main/java/net/minecraft/server/PacketDataSerializer.java +++ b/src/main/java/net/minecraft/server/PacketDataSerializer.java @@ -253,6 +253,15 @@ public class PacketDataSerializer extends ByteBuf { CraftItemStack.setItemMeta(itemstack, CraftItemStack.getItemMeta(itemstack)); // Spigot end nbttagcompound = itemstack.getTag(); + // Paper start + if (nbttagcompound != null && nbttagcompound.hasKeyOfType("SkullOwner", 10)) { + NBTTagCompound owner = nbttagcompound.getCompound("SkullOwner"); + if (owner.hasKey("Id")) { + nbttagcompound.setString("SkullOwnerOrig", owner.getString("Id")); + TileEntitySkull.sanitizeUUID(owner); + } + } + // Paper end } this.a(nbttagcompound); @@ -272,6 +281,16 @@ public class PacketDataSerializer extends ByteBuf { itemstack.setTag(this.l()); // CraftBukkit start if (itemstack.getTag() != null) { + // Paper start - Fix skulls of same owner - restore orig ID since we changed it on send to client + if (itemstack.tag.hasKey("SkullOwnerOrig")) { + NBTTagCompound owner = itemstack.tag.getCompound("SkullOwner"); + String ownerOrig = itemstack.tag.getString("SkullOwnerOrig"); + if (!owner.isEmpty() && !ownerOrig.isEmpty()) { + owner.setString("Id", ownerOrig); + } + itemstack.tag.remove("SkullOwnerOrig"); + } + // Paper end CraftItemStack.setItemMeta(itemstack, CraftItemStack.getItemMeta(itemstack)); } // CraftBukkit end diff --git a/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java b/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java index 363ab5da12..d19a30ad87 100644 --- a/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java +++ b/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java @@ -51,6 +51,7 @@ public class PacketPlayOutMapChunk implements Packet { if (this.f() || (i & 1 << j) != 0) { NBTTagCompound nbttagcompound = tileentity.b(); + if (tileentity instanceof TileEntitySkull) { TileEntitySkull.sanitizeTileEntityUUID(nbttagcompound); } // Paper this.f.add(nbttagcompound); } diff --git a/src/main/java/net/minecraft/server/TileEntitySkull.java b/src/main/java/net/minecraft/server/TileEntitySkull.java index 177cceb77f..0882d82cef 100644 --- a/src/main/java/net/minecraft/server/TileEntitySkull.java +++ b/src/main/java/net/minecraft/server/TileEntitySkull.java @@ -142,9 +142,37 @@ public class TileEntitySkull extends TileEntity /*implements ITickable*/ { // Pa @Nullable @Override public PacketPlayOutTileEntityData getUpdatePacket() { - return new PacketPlayOutTileEntityData(this.position, 4, this.b()); + return new PacketPlayOutTileEntityData(this.position, 4, sanitizeTileEntityUUID(this.b())); // Paper } + // Paper start + static NBTTagCompound sanitizeTileEntityUUID(NBTTagCompound cmp) { + NBTTagCompound owner = cmp.getCompound("Owner"); + if (!owner.isEmpty()) { + sanitizeUUID(owner); + } + return cmp; + } + + static void sanitizeUUID(NBTTagCompound owner) { + NBTTagCompound properties = owner.getCompound("Properties"); + NBTTagList list = null; + if (!properties.isEmpty()) { + list = properties.getList("textures", 10); + } + + if (list != null && !list.isEmpty()) { + String textures = ((NBTTagCompound)list.get(0)).getString("Value"); + if (textures != null && textures.length() > 3) { + String uuid = UUID.nameUUIDFromBytes(textures.getBytes()).toString(); + owner.setString("Id", uuid); + return; + } + } + owner.setString("Id", UUID.randomUUID().toString()); + } + // Paper end + @Override public NBTTagCompound b() { return this.save(new NBTTagCompound()); -- 2.21.0