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Allow enabling sand duping (#10191)

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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.
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Owen 2024-03-03 17:05:34 -05:00 • committed by GitHub
parent b21eb4d9a4
commit 89d51d5f29
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GPG key ID: B5690EEEBB952194
673 changed files with 157 additions and 189 deletions
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48
patches/server/0923-Add-PlayerPickItemEvent.patch Normal file
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@ -0,0 +1,48 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: RodneyMKay <36546810+RodneyMKay@users.noreply.github.com>
Date: Wed, 8 Sep 2021 21:34:01 +0200
Subject: [PATCH] Add PlayerPickItemEvent
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 81bc1e1cf5cd77f09560dbd0c277f77670d6cc56..270a76e932b76105a8a986b71ac8da8096368c73 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -907,8 +907,17 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
this.disconnect("Invalid hotbar selection (Hacking?)", org.bukkit.event.player.PlayerKickEvent.Cause.ILLEGAL_ACTION); // Paper - kick event cause
return;
}
- this.player.getInventory().pickSlot(packet.getSlot()); // Paper - Diff above if changed
// Paper end - validate pick item position
+ // Paper start - Add PlayerPickItemEvent
+ Player bukkitPlayer = this.player.getBukkitEntity();
+ int targetSlot = this.player.getInventory().getSuitableHotbarSlot();
+ int sourceSlot = packet.getSlot();
+
+ io.papermc.paper.event.player.PlayerPickItemEvent event = new io.papermc.paper.event.player.PlayerPickItemEvent(bukkitPlayer, targetSlot, sourceSlot);
+ if (!event.callEvent()) return;
+
+ this.player.getInventory().pickSlot(event.getSourceSlot(), event.getTargetSlot());
+ // Paper end - Add PlayerPickItemEvent
this.player.connection.send(new ClientboundContainerSetSlotPacket(-2, 0, this.player.getInventory().selected, this.player.getInventory().getItem(this.player.getInventory().selected)));
this.player.connection.send(new ClientboundContainerSetSlotPacket(-2, 0, packet.getSlot(), this.player.getInventory().getItem(packet.getSlot())));
this.player.connection.send(new ClientboundSetCarriedItemPacket(this.player.getInventory().selected));
diff --git a/src/main/java/net/minecraft/world/entity/player/Inventory.java b/src/main/java/net/minecraft/world/entity/player/Inventory.java
index 395cecc385e4126a7534ac9aeb15cf323efab03e..309acf7bd07e38043aa81e0e686edba1136bd04c 100644
--- a/src/main/java/net/minecraft/world/entity/player/Inventory.java
+++ b/src/main/java/net/minecraft/world/entity/player/Inventory.java
@@ -174,7 +174,13 @@ public class Inventory implements Container, Nameable {
}
public void pickSlot(int slot) {
- this.selected = this.getSuitableHotbarSlot();
+ // Paper start - Add PlayerPickItemEvent
+ pickSlot(slot, this.getSuitableHotbarSlot());
+ }
+
+ public void pickSlot(int slot, int targetSlot) {
+ this.selected = targetSlot;
+ // Paper end - Add PlayerPickItemEvent
ItemStack itemstack = (ItemStack) this.items.get(this.selected);
this.items.set(this.selected, (ItemStack) this.items.get(slot));