47 lines
2.5 KiB
Diff
47 lines
2.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Zach Brown <zach.brown@destroystokyo.com>
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Date: Sat, 12 Nov 2016 23:25:22 -0600
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Subject: [PATCH] Filter bad data from ArmorStand and SpawnEgg items
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diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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index e70c930d8ce1a385840b4fcf26fdeb8d8ee853b9..efdec6529abd5c0e09ee48f9cb4df3cd12bea31b 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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@@ -311,4 +311,12 @@ public class PaperWorldConfig {
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private void removeCorruptTEs() {
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removeCorruptTEs = getBoolean("remove-corrupt-tile-entities", false);
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}
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+
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+ public boolean filterNBTFromSpawnEgg = true;
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+ private void fitlerNBTFromSpawnEgg() {
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+ filterNBTFromSpawnEgg = getBoolean("filter-nbt-data-from-spawn-eggs-and-related", true);
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+ if (!filterNBTFromSpawnEgg) {
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+ Bukkit.getLogger().warning("Spawn Egg and Armor Stand NBT filtering disabled, this is a potential security risk");
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+ }
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+ }
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}
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diff --git a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
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index 1d538f490c7aa48991446fb55c7f0916bb5d5e29..69f385c57f3716a489781debb32b4adf1cb9383d 100644
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--- a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
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@@ -309,6 +309,18 @@ public class FallingBlockEntity extends Entity {
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@Override
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protected void readAdditionalSaveData(CompoundTag nbt) {
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this.blockState = NbtUtils.readBlockState(nbt.getCompound("BlockState"));
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+ // Paper start - Block FallingBlocks with Command Blocks
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+ final Block b = this.blockState.getBlock();
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+ if (this.level.paperConfig.filterNBTFromSpawnEgg
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+ && (b == Blocks.COMMAND_BLOCK
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+ || b == Blocks.REPEATING_COMMAND_BLOCK
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+ || b == Blocks.CHAIN_COMMAND_BLOCK
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+ || b == Blocks.JIGSAW
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+ || b == Blocks.STRUCTURE_BLOCK
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+ || b instanceof net.minecraft.world.level.block.GameMasterBlock)) {
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+ this.blockState = Blocks.STONE.defaultBlockState();
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+ }
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+ // Paper end
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this.time = nbt.getInt("Time");
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if (nbt.contains("HurtEntities", 99)) {
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this.hurtEntities = nbt.getBoolean("HurtEntities");
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