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89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
51 lines
3.4 KiB
Diff
51 lines
3.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Fri, 14 Jan 2022 10:20:40 -0800
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Subject: [PATCH] Sync offhand slot in menus
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Menus don't add slots for the offhand, so on sendAllDataToRemote calls the
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offhand slot isn't sent. This is not correct because you *can* put stuff into the offhand
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by pressing the offhand swap item
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diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
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index ecdeaa3f5a793895c3a4584ae7e4594b21087167..d4930c40f03c5f331847bf52736c563a688d7daf 100644
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--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
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+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
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@@ -299,6 +299,13 @@ public class ServerPlayer extends Player {
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}
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+ // Paper start - Sync offhand slot in menus
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+ @Override
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+ public void sendOffHandSlotChange() {
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+ ServerPlayer.this.connection.send(new ClientboundContainerSetSlotPacket(ServerPlayer.this.inventoryMenu.containerId, ServerPlayer.this.inventoryMenu.incrementStateId(), net.minecraft.world.inventory.InventoryMenu.SHIELD_SLOT, ServerPlayer.this.inventoryMenu.getSlot(net.minecraft.world.inventory.InventoryMenu.SHIELD_SLOT).getItem().copy()));
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+ }
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+ // Paper end - Sync offhand slot in menus
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+
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@Override
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public void sendSlotChange(AbstractContainerMenu handler, int slot, ItemStack stack) {
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ServerPlayer.this.connection.send(new ClientboundContainerSetSlotPacket(handler.containerId, handler.incrementStateId(), slot, stack));
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diff --git a/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java b/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
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index 399b2f4ddb7e9ef26fbc5e83f3b77c46d3868814..24caa1cf91cd50a5972238119aca1f85ec2b3d2b 100644
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--- a/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
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+++ b/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
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@@ -200,6 +200,7 @@ public abstract class AbstractContainerMenu {
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if (this.synchronizer != null) {
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this.synchronizer.sendInitialData(this, this.remoteSlots, this.remoteCarried, this.remoteDataSlots.toIntArray());
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+ this.synchronizer.sendOffHandSlotChange(); // Paper - Sync offhand slot in menus; update player's offhand since the offhand slot is not added to the slots for menus but can be changed by swapping from a menu slot
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}
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}
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diff --git a/src/main/java/net/minecraft/world/inventory/ContainerSynchronizer.java b/src/main/java/net/minecraft/world/inventory/ContainerSynchronizer.java
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index ff4fa86f9408e83e505f7e27692d3423f8570c48..a45ef5fcffc05e4e30801b73e82d29c6dbf5b8fd 100644
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--- a/src/main/java/net/minecraft/world/inventory/ContainerSynchronizer.java
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+++ b/src/main/java/net/minecraft/world/inventory/ContainerSynchronizer.java
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@@ -6,6 +6,7 @@ import net.minecraft.world.item.ItemStack;
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public interface ContainerSynchronizer {
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void sendInitialData(AbstractContainerMenu handler, NonNullList<ItemStack> stacks, ItemStack cursorStack, int[] properties);
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+ default void sendOffHandSlotChange() {} // Paper - Sync offhand slot in menus
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void sendSlotChange(AbstractContainerMenu handler, int slot, ItemStack stack);
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void sendCarriedChange(AbstractContainerMenu handler, ItemStack stack);
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