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https://github.com/PaperMC/Paper.git
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43 lines
3 KiB
Diff
43 lines
3 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: Mon, 11 Sep 2023 12:01:57 +1000
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Subject: [PATCH] Add slot sanity checks in container clicks
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diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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index af7696900171ea6b7941251046bfc10c1f4eb469..836e6b705b201253f2b81d1ca0228b8a0266a1dd 100644
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--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
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@@ -3011,6 +3011,12 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
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break;
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case SWAP:
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if ((packet.getButtonNum() >= 0 && packet.getButtonNum() < 9) || packet.getButtonNum() == 40) {
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+ // Paper start - Add slot sanity checks to container clicks
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+ if (packet.getSlotNum() < 0) {
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+ action = InventoryAction.NOTHING;
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+ break;
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+ }
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+ // Paper end - Add slot sanity checks to container clicks
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click = (packet.getButtonNum() == 40) ? ClickType.SWAP_OFFHAND : ClickType.NUMBER_KEY;
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Slot clickedSlot = this.player.containerMenu.getSlot(packet.getSlotNum());
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if (clickedSlot.mayPickup(this.player)) {
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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 fc23e2dc42e907d5f8dc134a06102cc3e7fde515..22dc1569aabe69f139d9682ceb81311993706cb8 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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@@ -460,6 +460,7 @@ public abstract class AbstractContainerMenu {
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this.resetQuickCraft();
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}
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} else if (this.quickcraftStatus == 1) {
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+ if (slotIndex < 0) return; // Paper - Add slot sanity checks to container clicks
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slot = (Slot) this.slots.get(slotIndex);
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itemstack = this.getCarried();
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if (AbstractContainerMenu.canItemQuickReplace(slot, itemstack, true) && slot.mayPlace(itemstack) && (this.quickcraftType == 2 || itemstack.getCount() > this.quickcraftSlots.size()) && this.canDragTo(slot)) {
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@@ -634,6 +635,7 @@ public abstract class AbstractContainerMenu {
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int j2;
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if (actionType == ClickType.SWAP && (button >= 0 && button < 9 || button == 40)) {
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+ if (slotIndex < 0) return; // Paper - Add slot sanity checks to container clicks
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ItemStack itemstack4 = playerinventory.getItem(button);
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slot = (Slot) this.slots.get(slotIndex);
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