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. 

1 files changed, 33 insertions, 0 deletions

diff --git a/patches/server/0909-SculkCatalyst-bloom-API.patch b/patches/server/0909-SculkCatalyst-bloom-API.patch
new file mode 100644
index 0000000000..77742addde
--- /dev/null
+++ b/patches/server/0909-SculkCatalyst-bloom-API.patch
@@ -0,0 +1,33 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Oliwier Miodun <[email protected]>
+Date: Mon, 10 Jul 2023 17:59:42 +0200
+Subject: [PATCH] SculkCatalyst bloom API
+
+== AT ==
+public net.minecraft.world.level.block.entity.SculkCatalystBlockEntity$CatalystListener bloom(Lnet/minecraft/server/level/ServerLevel;Lnet/minecraft/core/BlockPos;Lnet/minecraft/world/level/block/state/BlockState;Lnet/minecraft/util/RandomSource;)V
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftSculkCatalyst.java b/src/main/java/org/bukkit/craftbukkit/block/CraftSculkCatalyst.java
+index 139026c06589bb9c4201e20cd200887a8527fe55..a4ad8a90d0c2e4978370f9631dbd3a430e951b1c 100644
+--- a/src/main/java/org/bukkit/craftbukkit/block/CraftSculkCatalyst.java
++++ b/src/main/java/org/bukkit/craftbukkit/block/CraftSculkCatalyst.java
+@@ -32,4 +32,20 @@ public class CraftSculkCatalyst extends CraftBlockEntityState<SculkCatalystBlock
+     public CraftSculkCatalyst copy() {
+         return new CraftSculkCatalyst(this);
+     }
++
++    // Paper start - SculkCatalyst bloom API
++    @Override
++    public void bloom(@org.jetbrains.annotations.NotNull io.papermc.paper.math.Position position, int charge) {
++        com.google.common.base.Preconditions.checkNotNull(position);
++        requirePlaced();
++
++        getTileEntity().getListener().bloom(
++            world.getHandle(),
++            getTileEntity().getBlockPos(),
++            getTileEntity().getBlockState(),
++            world.getHandle().getRandom()
++        );
++        getTileEntity().getListener().getSculkSpreader().addCursors(io.papermc.paper.util.MCUtil.toBlockPos(position), charge);
++    }
++    // Paper end
+ }