mirror of
https://github.com/PaperMC/Paper.git
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57 lines
4.0 KiB
Diff
57 lines
4.0 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/core/component/DataComponentPatch.java b/src/main/java/net/minecraft/core/component/DataComponentPatch.java
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index 2a00a2c8102a4a88edcfc8c680c3711efeb75b4a..33340e8ebe23a1a9ce587be34551fb929c41d0fd 100644
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--- a/src/main/java/net/minecraft/core/component/DataComponentPatch.java
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+++ b/src/main/java/net/minecraft/core/component/DataComponentPatch.java
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@@ -71,7 +71,7 @@ public final class DataComponentPatch {
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if (i == 0 && j == 0) {
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return DataComponentPatch.EMPTY;
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} else {
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- Reference2ObjectMap<DataComponentType<?>, Optional<?>> reference2objectmap = new Reference2ObjectArrayMap(i + j);
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+ Reference2ObjectMap<DataComponentType<?>, Optional<?>> reference2objectmap = new Reference2ObjectArrayMap(Math.min(i + j, 256)); // Paper - sensible initial size limit
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DataComponentType datacomponenttype;
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int k;
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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 30e0563ba54021bf8f2896bee8060e723ad84d48..e13097ceba283fdf165d7e6327fe78590252fe94 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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@@ -2970,6 +2970,12 @@ 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 85fb19177690ea7235c10f64789066599db08b05..428e454116804c27496cfbf796edd44780890d33 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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@@ -423,6 +423,7 @@ 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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@@ -597,6 +598,7 @@ 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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