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https://github.com/PaperMC/Paper.git
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65 lines
3.1 KiB
Diff
65 lines
3.1 KiB
Diff
From b277f7f16147d91a04ac1708888225076084af68 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 4ca44afa9..dcf64efcc 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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@@ -385,4 +385,12 @@ 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/server/EntityFallingBlock.java b/src/main/java/net/minecraft/server/EntityFallingBlock.java
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index 8059e6dcd..a4f465e38 100644
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--- a/src/main/java/net/minecraft/server/EntityFallingBlock.java
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+++ b/src/main/java/net/minecraft/server/EntityFallingBlock.java
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@@ -251,6 +251,14 @@ public class EntityFallingBlock extends Entity {
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this.block = Block.getById(nbttagcompound.getByte("Tile") & 255).fromLegacyData(i);
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}
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+ // Paper start - Block FallingBlocks with Command Blocks
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+ // Check mappings on update - dc = "repeating_command_block" - dd = "chain_command_block"
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+ final Block b = this.block.getBlock();
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+ if (this.world.paperConfig.filterNBTFromSpawnEgg && (b == Blocks.COMMAND_BLOCK || b == Blocks.dc || b == Blocks.dd)) {
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+ this.block = Blocks.STONE.getBlockData();
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+ }
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+ // Paper end
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+
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this.ticksLived = nbttagcompound.getInt("Time");
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Block block = this.block.getBlock();
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diff --git a/src/main/java/net/minecraft/server/ItemMonsterEgg.java b/src/main/java/net/minecraft/server/ItemMonsterEgg.java
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index 1a01a57d2..f914ad417 100644
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--- a/src/main/java/net/minecraft/server/ItemMonsterEgg.java
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+++ b/src/main/java/net/minecraft/server/ItemMonsterEgg.java
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@@ -102,7 +102,14 @@ public class ItemMonsterEgg extends Item {
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NBTTagCompound nbttagcompound1 = entity.e(new NBTTagCompound());
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UUID uuid = entity.getUniqueID();
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- nbttagcompound1.a(nbttagcompound.getCompound("EntityTag"));
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+ // Paper start - Filter out position and motion information
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+ final NBTTagCompound entityTag = nbttagcompound.getCompound("EntityTag");
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+ if (world.paperConfig.filterNBTFromSpawnEgg) {
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+ entityTag.remove("Pos");
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+ entityTag.remove("Motion");
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+ }
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+ nbttagcompound1.a(entityTag);
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+ // Paper end
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entity.a(uuid);
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entity.f(nbttagcompound1);
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}
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--
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2.12.2
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