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geforkt von Mirrors/Paper
Paper/patches/server/0732-Prevent-sending-oversized-item-data-in-equipment-and.patch

87 Zeilen
4.7 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Nassim Jahnke <nassim@njahnke.dev>
Date: Wed, 1 Dec 2021 12:36:25 +0100
Subject: [PATCH] Prevent sending oversized item data in equipment and metadata
diff --git a/src/main/java/net/minecraft/network/syncher/EntityDataSerializers.java b/src/main/java/net/minecraft/network/syncher/EntityDataSerializers.java
index 97da8896865ff0bdd4fe8f2155b0830b42051bb1..9ca897d92c5bdd2764d114c74d64c776674d6beb 100644
--- a/src/main/java/net/minecraft/network/syncher/EntityDataSerializers.java
+++ b/src/main/java/net/minecraft/network/syncher/EntityDataSerializers.java
@@ -42,7 +42,7 @@ public class EntityDataSerializers {
public static final EntityDataSerializer<ItemStack> ITEM_STACK = new EntityDataSerializer<ItemStack>() {
@Override
public void write(FriendlyByteBuf buf, ItemStack value) {
- buf.writeItem(value);
+ buf.writeItem(net.minecraft.world.entity.LivingEntity.sanitizeItemStack(value, true)); // Paper - prevent oversized data
}
@Override
diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
index e7c0d214abbad1f300049f790ae54e7ea488e150..24f0d61a2fa9ac95dd26443a978209b53baf10b1 100644
--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
2023-06-08 09:20:03 +02:00
@@ -338,7 +338,10 @@ public class ServerEntity {
ItemStack itemstack = ((LivingEntity) this.entity).getItemBySlot(enumitemslot);
if (!itemstack.isEmpty()) {
- list.add(Pair.of(enumitemslot, itemstack.copy()));
+ // Paper start - prevent oversized data
+ final ItemStack sanitized = LivingEntity.sanitizeItemStack(itemstack.copy(), false);
+ list.add(Pair.of(enumitemslot, sanitized));
+ // 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 a26a2cb41206f66c209c6b9c2328f46487ac9aba..d481eeac08535bc79b5714afa376a2fe2843516c 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#9440) 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: 01aa02eb PR-858: Add LivingEntity#playHurtAnimation() 9421320f PR-884: Refinements to new ban API for improved compatibility and correctness 37a60b45 SPIGOT-6455, SPIGOT-7030, PR-750: Improve ban API 4eeb174b All smithing inventories are now the new smithing inventory f2bb168e PR-880: Add methods to get/set FallingBlock CancelDrop e7a807fa PR-879: Add Player#sendHealthUpdate() 692b8e96 SPIGOT-7370: Remove float value conversion in plugin.yml 2d033390 SPIGOT-7403: Add direct API for waxed signs 16a08373 PR-876: Add missing Raider API and 'no action ticks' CraftBukkit Changes: b60a95c8c PR-1189: Add LivingEntity#playHurtAnimation() 95c335c63 PR-1226: Fix VehicleEnterEvent not being called for certain entities 0a0fc3bee PR-1227: Refinements to new ban API for improved compatibility and correctness 0d0b1e5dc Revert bad change to PathfinderGoalSit causing all cats to sit 648196070 SPIGOT-6455, SPIGOT-7030, PR-1054: Improve ban API 31fe848d6 All smithing inventories are now the new smithing inventory 9a919a143 SPIGOT-7416: SmithItemEvent not firing in Smithing Table 9f64f0d22 PR-1221: Add methods to get/set FallingBlock CancelDrop 3be9ac171 PR-1220: Add Player#sendHealthUpdate() c1279f775 PR-1209: Clean up various patches c432e4397 Fix Raider#setCelebrating() implementation 504d96665 SPIGOT-7403: Add direct API for waxed signs c68c1f1b3 PR-1216: Add missing Raider API and 'no action ticks' 85b89c3dd Increase outdated build delay Spigot Changes: 9ebce8af Rebuild patches 64b565e6 Rebuild patches
2023-07-04 10:22:56 +02:00
@@ -3157,7 +3157,10 @@ public abstract class LivingEntity extends Entity implements Attackable {
equipmentChanges.forEach((enumitemslot, itemstack) -> {
ItemStack itemstack1 = itemstack.copy();
- list.add(Pair.of(enumitemslot, itemstack1));
+ // Paper start - prevent oversized data
+ ItemStack toSend = sanitizeItemStack(itemstack1, true);
+ list.add(Pair.of(enumitemslot, toSend));
+ // Paper end
switch (enumitemslot.getType()) {
case HAND:
this.setLastHandItem(enumitemslot, itemstack1);
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#9440) 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: 01aa02eb PR-858: Add LivingEntity#playHurtAnimation() 9421320f PR-884: Refinements to new ban API for improved compatibility and correctness 37a60b45 SPIGOT-6455, SPIGOT-7030, PR-750: Improve ban API 4eeb174b All smithing inventories are now the new smithing inventory f2bb168e PR-880: Add methods to get/set FallingBlock CancelDrop e7a807fa PR-879: Add Player#sendHealthUpdate() 692b8e96 SPIGOT-7370: Remove float value conversion in plugin.yml 2d033390 SPIGOT-7403: Add direct API for waxed signs 16a08373 PR-876: Add missing Raider API and 'no action ticks' CraftBukkit Changes: b60a95c8c PR-1189: Add LivingEntity#playHurtAnimation() 95c335c63 PR-1226: Fix VehicleEnterEvent not being called for certain entities 0a0fc3bee PR-1227: Refinements to new ban API for improved compatibility and correctness 0d0b1e5dc Revert bad change to PathfinderGoalSit causing all cats to sit 648196070 SPIGOT-6455, SPIGOT-7030, PR-1054: Improve ban API 31fe848d6 All smithing inventories are now the new smithing inventory 9a919a143 SPIGOT-7416: SmithItemEvent not firing in Smithing Table 9f64f0d22 PR-1221: Add methods to get/set FallingBlock CancelDrop 3be9ac171 PR-1220: Add Player#sendHealthUpdate() c1279f775 PR-1209: Clean up various patches c432e4397 Fix Raider#setCelebrating() implementation 504d96665 SPIGOT-7403: Add direct API for waxed signs c68c1f1b3 PR-1216: Add missing Raider API and 'no action ticks' 85b89c3dd Increase outdated build delay Spigot Changes: 9ebce8af Rebuild patches 64b565e6 Rebuild patches
2023-07-04 10:22:56 +02:00
@@ -3170,6 +3173,34 @@ public abstract class LivingEntity extends Entity implements Attackable {
2023-06-08 09:20:03 +02:00
((ServerLevel) this.level()).getChunkSource().broadcast(this, new ClientboundSetEquipmentPacket(this.getId(), list));
}
+ // Paper start - prevent oversized data
+ public static ItemStack sanitizeItemStack(final ItemStack itemStack, final boolean copyItemStack) {
+ if (itemStack.isEmpty() || !itemStack.hasTag()) {
+ return itemStack;
+ }
+
+ final ItemStack copy = copyItemStack ? itemStack.copy() : itemStack;
+ final CompoundTag tag = copy.getTag();
+ if (copy.is(Items.BUNDLE) && tag.get("Items") instanceof ListTag oldItems && !oldItems.isEmpty()) {
+ // Bundles change their texture based on their fullness.
+ org.bukkit.inventory.meta.BundleMeta bundleMeta = (org.bukkit.inventory.meta.BundleMeta) copy.asBukkitMirror().getItemMeta();
+ int sizeUsed = 0;
+ for (org.bukkit.inventory.ItemStack item : bundleMeta.getItems()) {
+ int scale = 64 / item.getMaxStackSize();
+ sizeUsed += scale * item.getAmount();
+ }
+ // Now we add a single fake item that uses the same amount of slots as all other items.
+ ListTag items = new ListTag();
+ items.add(new ItemStack(Items.PAPER, sizeUsed).save(new CompoundTag()));
+ tag.put("Items", items);
+ }
+ if (tag.get("BlockEntityTag") instanceof CompoundTag blockEntityTag) {
+ blockEntityTag.remove("Items");
+ }
+ return copy;
+ }
+ // Paper end
+
private ItemStack getLastArmorItem(EquipmentSlot slot) {
return (ItemStack) this.lastArmorItemStacks.get(slot.getIndex());
}