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ef0e5a642d
Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 9ae3f10f SPIGOT-3842: Add Player#fireworkBoost() and expand Firework API 48c0c547 PR-786: Add methods to get sounds from entities CraftBukkit Changes: 5cc9c022a SPIGOT-7152: Handle hand item changing during air interact event 4ffa1acf6 SPIGOT-7154: Players get kicked when interacting with a conversation 4daa21123 SPIGOT-3842: Add Player#fireworkBoost() and expand Firework API e5d6a9bbf PR-1100: Add methods to get sounds from entities b7e9f1c8b SPIGOT-7146: Reduce use of Material switch in ItemMeta Spigot Changes: 4c157bb4 Rebuild patches
86 lines
4.6 KiB
Diff
86 lines
4.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Nassim Jahnke <nassim@njahnke.dev>
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Date: Wed, 1 Dec 2021 12:36:25 +0100
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Subject: [PATCH] Prevent sending oversized item data in equipment and metadata
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diff --git a/src/main/java/net/minecraft/network/syncher/EntityDataSerializers.java b/src/main/java/net/minecraft/network/syncher/EntityDataSerializers.java
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index 0c79613597e9ed1fbeeb36e9cb60a70bbda17bb9..79593d42ef881aa96eab7ea1e50683fa48ff4896 100644
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--- a/src/main/java/net/minecraft/network/syncher/EntityDataSerializers.java
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+++ b/src/main/java/net/minecraft/network/syncher/EntityDataSerializers.java
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@@ -38,7 +38,7 @@ public class EntityDataSerializers {
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public static final EntityDataSerializer<ItemStack> ITEM_STACK = new EntityDataSerializer<ItemStack>() {
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@Override
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public void write(FriendlyByteBuf buf, ItemStack value) {
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- buf.writeItem(value);
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+ buf.writeItem(net.minecraft.world.entity.LivingEntity.sanitizeItemStack(value, false)); // Paper - prevent oversized data
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}
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@Override
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diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
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index cc418554b655ea4111631e4a1abf69776e150e7c..319dfa82dff1fe188a52bed5aa2d39575853b793 100644
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--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
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+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
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@@ -309,7 +309,10 @@ public class ServerEntity {
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ItemStack itemstack = ((LivingEntity) this.entity).getItemBySlot(enumitemslot);
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if (!itemstack.isEmpty()) {
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- list.add(Pair.of(enumitemslot, itemstack.copy()));
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+ // Paper start - prevent oversized data
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+ final ItemStack sanitized = LivingEntity.sanitizeItemStack(itemstack.copy(), false);
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+ list.add(Pair.of(enumitemslot, sanitized));
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+ // Paper end
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}
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}
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diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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index 8ac7d25e6e1a22829d6c45522409763bbb1328a0..e7560eb298b563231407de832a81bb2c97e3c4cf 100644
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--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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@@ -3134,7 +3134,10 @@ public abstract class LivingEntity extends Entity {
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equipmentChanges.forEach((enumitemslot, itemstack) -> {
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ItemStack itemstack1 = itemstack.copy();
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- list.add(Pair.of(enumitemslot, itemstack1));
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+ // Paper start - prevent oversized data
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+ ItemStack toSend = sanitizeItemStack(itemstack1, true);
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+ list.add(Pair.of(enumitemslot, toSend));
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+ // Paper end
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switch (enumitemslot.getType()) {
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case HAND:
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this.setLastHandItem(enumitemslot, itemstack1);
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@@ -3147,6 +3150,34 @@ public abstract class LivingEntity extends Entity {
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((ServerLevel) this.level).getChunkSource().broadcast(this, new ClientboundSetEquipmentPacket(this.getId(), list));
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}
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+ // Paper start - prevent oversized data
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+ public static ItemStack sanitizeItemStack(final ItemStack itemStack, final boolean copyItemStack) {
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+ if (itemStack.isEmpty() || !itemStack.hasTag()) {
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+ return itemStack;
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+ }
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+
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+ final ItemStack copy = copyItemStack ? itemStack.copy() : itemStack;
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+ final CompoundTag tag = copy.getTag();
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+ if (copy.is(Items.BUNDLE) && tag.get("Items") instanceof ListTag oldItems && !oldItems.isEmpty()) {
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+ // Bundles change their texture based on their fullness.
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+ org.bukkit.inventory.meta.BundleMeta bundleMeta = (org.bukkit.inventory.meta.BundleMeta) copy.asBukkitMirror().getItemMeta();
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+ int sizeUsed = 0;
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+ for (org.bukkit.inventory.ItemStack item : bundleMeta.getItems()) {
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+ int scale = 64 / item.getMaxStackSize();
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+ sizeUsed += scale * item.getAmount();
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+ }
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+ // Now we add a single fake item that uses the same amount of slots as all other items.
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+ ListTag items = new ListTag();
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+ items.add(new ItemStack(Items.PAPER, sizeUsed).save(new CompoundTag()));
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+ tag.put("Items", items);
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+ }
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+ if (tag.get("BlockEntityTag") instanceof CompoundTag blockEntityTag) {
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+ blockEntityTag.remove("Items");
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+ }
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+ return copy;
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+ }
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+ // Paper end
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+
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private ItemStack getLastArmorItem(EquipmentSlot slot) {
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return (ItemStack) this.lastArmorItemStacks.get(slot.getIndex());
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}
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