Scissors/patches/server/0003-ResourceLocation-validation.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Telesphoreo <me@telesphoreo.me>
Date: Sun, 5 May 2024 12:29:05 -0500
Subject: [PATCH] ResourceLocation validation


diff --git a/src/main/java/com/destroystokyo/paper/loottable/PaperContainerEntityLootableInventory.java b/src/main/java/com/destroystokyo/paper/loottable/PaperContainerEntityLootableInventory.java
index 183f31c81d9c0a966e6b20c2cff3d279dfc7e622..5d32a985894656712553a3f79abc454d6802d135 100644
--- a/src/main/java/com/destroystokyo/paper/loottable/PaperContainerEntityLootableInventory.java
+++ b/src/main/java/com/destroystokyo/paper/loottable/PaperContainerEntityLootableInventory.java
@@ -20,7 +20,7 @@ public class PaperContainerEntityLootableInventory implements PaperLootableEntit
 
     @Override
     public org.bukkit.loot.LootTable getLootTable() {
-        return entity.getLootTable() != null && !entity.getLootTable().location().getPath().isEmpty() ? Optionull.map(entity.getLootTable(), rk -> Bukkit.getLootTable(CraftNamespacedKey.fromMinecraft(rk.location()))) : null;
+        return entity.getLootTable() != null && !entity.getLootTable().location().getPath().isEmpty() && entity.getLootTable().toString().length() < 256 ? Optionull.map(entity.getLootTable(), rk -> Bukkit.getLootTable(CraftNamespacedKey.fromMinecraft(rk.location()))) : null; // Scissors - Validate length of loot tables before even trying
     }
 
     @Override
diff --git a/src/main/java/com/destroystokyo/paper/loottable/PaperTileEntityLootableInventory.java b/src/main/java/com/destroystokyo/paper/loottable/PaperTileEntityLootableInventory.java
index 6f6e19b7b57cb3070ef5b6810d8449344705af8c..f364b0ca67c31ae2dfbdbf5eb7980e8ddf8b82f5 100644
--- a/src/main/java/com/destroystokyo/paper/loottable/PaperTileEntityLootableInventory.java
+++ b/src/main/java/com/destroystokyo/paper/loottable/PaperTileEntityLootableInventory.java
@@ -17,7 +17,7 @@ public class PaperTileEntityLootableInventory implements PaperLootableBlockInven
 
     @Override
     public org.bukkit.loot.LootTable getLootTable() {
-        return tileEntityLootable.lootTable != null && !tileEntityLootable.lootTable.location().getPath().isEmpty() ? Bukkit.getLootTable(CraftNamespacedKey.fromMinecraft(tileEntityLootable.lootTable.location())) : null;
+        return tileEntityLootable.lootTable != null && !tileEntityLootable.lootTable.location().getPath().isEmpty() && tileEntityLootable.lootTable.toString().length() < 256 ? Bukkit.getLootTable(CraftNamespacedKey.fromMinecraft(tileEntityLootable.lootTable.location())) : null; // Scissors - Validate length of loot tables before even trying
     }
 
     @Override
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftLootable.java b/src/main/java/org/bukkit/craftbukkit/block/CraftLootable.java
index c3215f15b3088199dcf96f62b58d0ec7c2b4125c..e290a8b5f790b8ad84c3e16f650afb731018fd4d 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftLootable.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftLootable.java
@@ -1,5 +1,6 @@
 package org.bukkit.craftbukkit.block;
 
+import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.level.block.entity.RandomizableContainerBlockEntity;
 import org.bukkit.Location;
 import org.bukkit.Nameable;
@@ -29,7 +30,13 @@ public abstract class CraftLootable<T extends RandomizableContainerBlockEntity>
 
     @Override
     public LootTable getLootTable() {
-        return CraftLootTable.minecraftToBukkit(this.getSnapshot().lootTable);
+        // Scissors start - Return a null loot table if the specified loot table is not valid
+        try {
+            return CraftLootTable.minecraftToBukkit(this.getSnapshot().lootTable);
+        } catch (Exception ex) {
+            return null;
+        }
+        // Scissors end
     }
 
     @Override
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartContainer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartContainer.java
index 4388cd0303b45faf21631e7644baebb63baaba10..3c049fe04c6a4166e6fd3a24de9209d806d1e33a 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartContainer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartContainer.java
@@ -25,7 +25,14 @@ public abstract class CraftMinecartContainer extends CraftMinecart implements Lo
 
     @Override
     public LootTable getLootTable() {
-        return CraftLootTable.minecraftToBukkit(this.getHandle().lootTable);
+        // Scissors start - Return a null loot table if the specified loot table is not valid
+        try {
+            return CraftLootTable.minecraftToBukkit(this.getHandle().lootTable);
+        } catch (Exception exception)
+        {
+            return null;
+        }
+        // Scissors end
     }
 
     @Override
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java
index e155501fb3a88edf3ddac3aa0aae1b6a5a84962e..b588a3a39f2c003ddd1490decbce31f0b22bb2e1 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java
@@ -78,7 +78,13 @@ public abstract class CraftMob extends CraftLivingEntity implements Mob {
 
     @Override
     public LootTable getLootTable() {
-        return CraftLootTable.minecraftToBukkit(this.getHandle().getLootTable());
+        // Scissors start - Return a null loot table if the specified loot table is not valid
+        try {
+            return CraftLootTable.minecraftToBukkit(this.getHandle().getLootTable());
+        } catch (Exception exception) {
+            return null;
+        }
+        // Scissors end
     }
 
     @Override