111 lines
6.1 KiB
Diff
111 lines
6.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Noah van der Aa <ndvdaa@gmail.com>
|
|
Date: Tue, 3 Aug 2021 17:28:27 +0200
|
|
Subject: [PATCH] Hide unnecessary itemmeta from clients
|
|
|
|
|
|
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
|
|
index 409cffcf74b32beba09b2fe800d1329ee64426f8..99008ac6943c56f74f912e739709a4724da322ef 100644
|
|
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
|
|
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
|
|
@@ -985,6 +985,13 @@ public class PaperWorldConfig {
|
|
behaviorTickRates = loadTickRates("behavior");
|
|
}
|
|
|
|
+ public boolean hideItemmetaFromClients = false;
|
|
+ public boolean hideDurabilityFromClients = false;
|
|
+ private void getHideItemmetaFromClients() {
|
|
+ hideItemmetaFromClients = getBoolean("anticheat.obfuscation.items.hide-itemmeta", hideItemmetaFromClients);
|
|
+ hideDurabilityFromClients = getBoolean("anticheat.obfuscation.items.hide-durability", hideDurabilityFromClients);
|
|
+ }
|
|
+
|
|
private com.google.common.collect.Table<String, String, Integer> loadTickRates(String type) {
|
|
log(" " + type + ":");
|
|
com.google.common.collect.Table<String, String, Integer> table = com.google.common.collect.HashBasedTable.create();
|
|
diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
|
|
index 5d30612fbb5e9edc7301b3bae31c1764fc6630c6..a482cc1c4d7eab531cd3f5cf42f7d3a43470ef6b 100644
|
|
--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
|
|
+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
|
|
@@ -305,7 +305,7 @@ public class ServerEntity {
|
|
if (!itemstack.isEmpty()) {
|
|
// Paper start - prevent oversized data
|
|
final ItemStack sanitized = LivingEntity.sanitizeItemStack(itemstack.copy(), false);
|
|
- list.add(Pair.of(enumitemslot, sanitized));
|
|
+ list.add(Pair.of(enumitemslot, ((LivingEntity) this.entity).stripMeta(sanitized, false))); // Paper - remove unnecessary item meta
|
|
// Paper end
|
|
}
|
|
}
|
|
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
|
|
index 522d4ca03bf539dcb38ddf8cf97a1627a7698bc3..7bd5c41c08d198c4278486a245872d2f31162627 100644
|
|
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
|
|
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
|
|
@@ -3111,7 +3111,7 @@ public abstract class LivingEntity extends Entity {
|
|
|
|
// Paper start - prevent oversized data
|
|
ItemStack toSend = sanitizeItemStack(itemstack1, true);
|
|
- list.add(Pair.of(enumitemslot, toSend));
|
|
+ list.add(Pair.of(enumitemslot, stripMeta(toSend, toSend == itemstack1))); // Paper - hide unnecessary item meta
|
|
// Paper end
|
|
switch (enumitemslot.getType()) {
|
|
case HAND:
|
|
@@ -3125,6 +3125,59 @@ public abstract class LivingEntity extends Entity {
|
|
((ServerLevel) this.level).getChunkSource().broadcast(this, new ClientboundSetEquipmentPacket(this.getId(), list));
|
|
}
|
|
|
|
+ // Paper start - hide unnecessary item meta
|
|
+ public ItemStack stripMeta(final ItemStack itemStack, final boolean copyItemStack) {
|
|
+ if (itemStack.isEmpty() || (!itemStack.hasTag() && itemStack.getCount() < 2)) {
|
|
+ return itemStack;
|
|
+ }
|
|
+
|
|
+ final ItemStack copy = copyItemStack ? itemStack.copy() : itemStack;
|
|
+ if (level.paperConfig.hideDurabilityFromClients) {
|
|
+ // Only show damage values for elytra's, since they show a different texture when broken.
|
|
+ if (!copy.is(Items.ELYTRA) || copy.getDamageValue() < copy.getMaxDamage() - 1) {
|
|
+ copy.setDamageValue(0);
|
|
+ }
|
|
+ }
|
|
+
|
|
+ if (level.paperConfig.hideItemmetaFromClients) {
|
|
+ // Some resource packs show different textures when there is more than one item. Since this shouldn't provide a big advantage,
|
|
+ // we'll tell the client if there's one or (more than) two items.
|
|
+ copy.setCount(copy.getCount() > 1 ? 2 : 1);
|
|
+ // We can't just strip out display, leather helmets still use the display.color tag.
|
|
+ final CompoundTag tag = copy.getTag();
|
|
+ if (tag != null) {
|
|
+ if (tag.get("display") instanceof CompoundTag displayTag) {
|
|
+ displayTag.remove("Lore");
|
|
+ displayTag.remove("Name");
|
|
+ }
|
|
+
|
|
+ if (tag.get("Enchantments") instanceof ListTag enchantmentsTag && !enchantmentsTag.isEmpty()) {
|
|
+ // The client still renders items with the enchantment glow if the enchantments tag contains at least one (empty) child.
|
|
+ ListTag enchantments = new ListTag();
|
|
+ CompoundTag fakeEnchantment = new CompoundTag();
|
|
+ // Soul speed boots generate client side particles.
|
|
+ if (EnchantmentHelper.getItemEnchantmentLevel(Enchantments.SOUL_SPEED, itemStack) > 0) {
|
|
+ fakeEnchantment.putString("id", org.bukkit.enchantments.Enchantment.SOUL_SPEED.getKey().asString());
|
|
+ fakeEnchantment.putInt("lvl", 1);
|
|
+ }
|
|
+ enchantments.add(fakeEnchantment);
|
|
+ tag.put("Enchantments", enchantments);
|
|
+ }
|
|
+ tag.remove("AttributeModifiers");
|
|
+
|
|
+ // Books
|
|
+ tag.remove("author");
|
|
+ tag.remove("filtered_title");
|
|
+ tag.remove("pages");
|
|
+ tag.remove("filtered_pages");
|
|
+ tag.remove("title");
|
|
+ tag.remove("generation");
|
|
+ }
|
|
+ }
|
|
+ return copy;
|
|
+ }
|
|
+ // Paper end
|
|
+
|
|
// Paper start - prevent oversized data
|
|
public static ItemStack sanitizeItemStack(final ItemStack itemStack, final boolean copyItemStack) {
|
|
if (itemStack.isEmpty() || !itemStack.hasTag()) {
|