Paper/patches/server/0110-Filter-bad-data-from-ArmorStand-and-SpawnEgg-items.patch
Jake Potrebic a923e332ee
Make despawn distance configs per-category, improve per category spawn limit config (#6717)
Also adds per-world spawn limit config in paper.yml for `underground_water_creature`, and migrates existing spawn limit config options to their Mojang names.
2021-11-08 23:59:15 -08:00

47 lines
2.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Sat, 12 Nov 2016 23:25:22 -0600
Subject: [PATCH] Filter bad data from ArmorStand and SpawnEgg items
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 097991f2dd8d35fd5bc62e23e7361d47e70da493..4bda78d36a64e89bc68885a2a10b40a759720d1a 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -347,4 +347,12 @@ public class PaperWorldConfig {
private void removeCorruptTEs() {
removeCorruptTEs = getBoolean("remove-corrupt-tile-entities", false);
}
+
+ public boolean filterNBTFromSpawnEgg = true;
+ private void fitlerNBTFromSpawnEgg() {
+ filterNBTFromSpawnEgg = getBoolean("filter-nbt-data-from-spawn-eggs-and-related", true);
+ if (!filterNBTFromSpawnEgg) {
+ Bukkit.getLogger().warning("Spawn Egg and Armor Stand NBT filtering disabled, this is a potential security risk");
+ }
+ }
}
diff --git a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
index 1d538f490c7aa48991446fb55c7f0916bb5d5e29..69f385c57f3716a489781debb32b4adf1cb9383d 100644
--- a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
+++ b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
@@ -309,6 +309,18 @@ public class FallingBlockEntity extends Entity {
@Override
protected void readAdditionalSaveData(CompoundTag nbt) {
this.blockState = NbtUtils.readBlockState(nbt.getCompound("BlockState"));
+ // Paper start - Block FallingBlocks with Command Blocks
+ final Block b = this.blockState.getBlock();
+ if (this.level.paperConfig.filterNBTFromSpawnEgg
+ && (b == Blocks.COMMAND_BLOCK
+ || b == Blocks.REPEATING_COMMAND_BLOCK
+ || b == Blocks.CHAIN_COMMAND_BLOCK
+ || b == Blocks.JIGSAW
+ || b == Blocks.STRUCTURE_BLOCK
+ || b instanceof net.minecraft.world.level.block.GameMasterBlock)) {
+ this.blockState = Blocks.STONE.defaultBlockState();
+ }
+ // Paper end
this.time = nbt.getInt("Time");
if (nbt.contains("HurtEntities", 99)) {
this.hurtEntities = nbt.getBoolean("HurtEntities");