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Paper/patches/server/0563-Correctly-check-if-bucket-dispenses-will-succeed-for.patch
Owen 89d51d5f29
Allow enabling sand duping (#10191)
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.
2024-03-03 17:05:34 -05:00

29 Zeilen
2.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Mon, 1 Jan 2024 12:57:19 -0800
Subject: [PATCH] Correctly check if bucket dispenses will succeed for event
Upstream incorrectly checks if the bucket place will succeed
in order to fire the BlockDispenseEvent. This patch corrects
that.
diff --git a/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
index 8c8d2e81f0866dc1441e181f2580852d87263bcc..c1c57f24ccfa7bd17541f53d02293db0bce8dc5c 100644
--- a/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
+++ b/src/main/java/net/minecraft/core/dispenser/DispenseItemBehavior.java
@@ -617,7 +617,13 @@ public interface DispenseItemBehavior {
int y = blockposition.getY();
int z = blockposition.getZ();
BlockState iblockdata = worldserver.getBlockState(blockposition);
- if (iblockdata.isAir() || iblockdata.canBeReplaced() || (dispensiblecontaineritem instanceof BucketItem && iblockdata.getBlock() instanceof LiquidBlockContainer && ((LiquidBlockContainer) iblockdata.getBlock()).canPlaceLiquid((Player) null, worldserver, blockposition, iblockdata, ((BucketItem) dispensiblecontaineritem).content))) {
+ // Paper start - correctly check if the bucket place will succeed
+ /* Taken from SolidBucketItem#emptyContents */
+ boolean willEmptyContentsSolidBucketItem = dispensiblecontaineritem instanceof net.minecraft.world.item.SolidBucketItem && worldserver.isInWorldBounds(blockposition) && iblockdata.isAir();
+ /* Taken from BucketItem#emptyContents */
+ boolean willEmptyBucketItem = dispensiblecontaineritem instanceof final BucketItem bucketItem && bucketItem.content instanceof net.minecraft.world.level.material.FlowingFluid && (iblockdata.isAir() || iblockdata.canBeReplaced(bucketItem.content) || (iblockdata.getBlock() instanceof LiquidBlockContainer liquidBlockContainer && liquidBlockContainer.canPlaceLiquid(null, worldserver, blockposition, iblockdata, bucketItem.content)));
+ if (willEmptyContentsSolidBucketItem || willEmptyBucketItem) {
+ // Paper end - correctly check if the bucket place will succeed
org.bukkit.block.Block block = CraftBlock.at(worldserver, pointer.pos());
CraftItemStack craftItem = CraftItemStack.asCraftMirror(stack);