Scissors/patches/server/0011-Even-more-resource-location-validation.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Video <videogamesm12@gmail.com>
Date: Mon, 9 May 2022 23:40:59 -0500
Subject: [PATCH] Even more resource location validation


diff --git a/src/main/java/net/minecraft/world/entity/AreaEffectCloud.java b/src/main/java/net/minecraft/world/entity/AreaEffectCloud.java
index 91e0328f847a2464a1cf65134520244a4cec705f..77ae3bc5fd6cf34aae7bd3baa563f3e23e57de26 100644
--- a/src/main/java/net/minecraft/world/entity/AreaEffectCloud.java
+++ b/src/main/java/net/minecraft/world/entity/AreaEffectCloud.java
@@ -145,7 +145,7 @@ public class AreaEffectCloud extends Entity implements TraceableEntity {
     }
 
     public void setPotionType(String string) {
-        this.setPotion(BuiltInRegistries.POTION.get(new ResourceLocation(string)));
+        this.setPotion(BuiltInRegistries.POTION.get(ResourceLocation.tryParse(string))); // Scissors - Validate resource locations
     }
     // CraftBukkit end
 
@@ -425,7 +425,7 @@ public class AreaEffectCloud extends Entity implements TraceableEntity {
             try {
                 this.setParticle(ParticleArgument.readParticle(new StringReader(nbt.getString("Particle")), (HolderLookup) BuiltInRegistries.PARTICLE_TYPE.asLookup()));
             } catch (CommandSyntaxException commandsyntaxexception) {
-                AreaEffectCloud.LOGGER.warn("Couldn't load custom particle {}", nbt.getString("Particle"), commandsyntaxexception);
+                // Scissors - Don't log custom particle errors
             }
         }
 
diff --git a/src/main/java/net/minecraft/world/entity/EntityType.java b/src/main/java/net/minecraft/world/entity/EntityType.java
index 9afc81ccb237c3655d64cdbe8a0db9a4d7791043..ffcb77755b28bcdb3eae981fc735e6dde664bb6e 100644
--- a/src/main/java/net/minecraft/world/entity/EntityType.java
+++ b/src/main/java/net/minecraft/world/entity/EntityType.java
@@ -588,7 +588,7 @@ public class EntityType<T extends Entity> implements FeatureElement, EntityTypeT
         }), (entity) -> {
             entity.load(nbt);
         }, () -> {
-            EntityType.LOGGER.warn("Skipping Entity with id {}", nbt.getString("id"));
+            /*EntityType.LOGGER.warn("Skipping Entity with id {}", nbt.getString("id"));*/ // Scissors - Don't log invalid entities
         });
     }
 
@@ -607,7 +607,7 @@ public class EntityType<T extends Entity> implements FeatureElement, EntityTypeT
     }
 
     public static Optional<EntityType<?>> by(CompoundTag nbt) {
-        return BuiltInRegistries.ENTITY_TYPE.getOptional(new ResourceLocation(nbt.getString("id")));
+        return BuiltInRegistries.ENTITY_TYPE.getOptional(ResourceLocation.tryParse(nbt.getString("id")));
     }
 
     @Nullable
diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
index e2a25c29ec74147b3e66aa0b3deb85a8f6ee53a5..b0c953ad8275740679c847e348b311de93d64965 100644
--- a/src/main/java/net/minecraft/world/entity/Mob.java
+++ b/src/main/java/net/minecraft/world/entity/Mob.java
@@ -618,7 +618,7 @@ public abstract class Mob extends LivingEntity implements Targeting {
 
         this.setLeftHanded(nbt.getBoolean("LeftHanded"));
         if (nbt.contains("DeathLootTable", 8)) {
-            this.lootTable = new ResourceLocation(nbt.getString("DeathLootTable"));
+            this.lootTable = ResourceLocation.tryParse(nbt.getString("DeathLootTable"));
             this.lootTableSeed = nbt.getLong("DeathLootTableSeed");
         }
 
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftLootable.java b/src/main/java/org/bukkit/craftbukkit/block/CraftLootable.java
index e49eece9bff3a53469673d03a7bbf8f9cf8776b8..a49f32e9649155b6af4b1f236e4e8142d730e7e8 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftLootable.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftLootable.java
@@ -30,8 +30,14 @@ public abstract class CraftLootable<T extends RandomizableContainerBlockEntity>
             return null;
         }
 
-        ResourceLocation key = getSnapshot().lootTable;
-        return Bukkit.getLootTable(CraftNamespacedKey.fromMinecraft(key));
+        // Scissors start - Return a null loot table if the specified loot table is not valid
+        try {
+            ResourceLocation key = getSnapshot().lootTable;
+            return Bukkit.getLootTable(CraftNamespacedKey.fromMinecraft(key));
+        } 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 0dd0ce9a9b3253e87eda12354249ec2fd2a33cf2..b6920f9432ca1736afbe775186fbbcf11cf046fb 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartContainer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftMinecartContainer.java
@@ -33,8 +33,14 @@ public abstract class CraftMinecartContainer extends CraftMinecart implements Lo
             return null; // return empty loot table?
         }
 
-        NamespacedKey key = CraftNamespacedKey.fromMinecraft(nmsTable);
-        return Bukkit.getLootTable(key);
+        // Scissors start - Return a null loot table if the specified loot table is not valid
+        try {
+            NamespacedKey key = CraftNamespacedKey.fromMinecraft(nmsTable);
+            return Bukkit.getLootTable(key);
+        } catch (Exception ex) {
+            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 18b9b0dc70f6872a9d71c120bcd2edca531b0ac4..fa0c023b3a88bd797f563e0e675d70966ff7dbd3 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java
@@ -80,8 +80,18 @@ public abstract class CraftMob extends CraftLivingEntity implements Mob {
 
     @Override
     public LootTable getLootTable() {
-        NamespacedKey key = CraftNamespacedKey.fromMinecraft(this.getHandle().getLootTable());
-        return Bukkit.getLootTable(key);
+        if (this.getHandle().lootTable == null) {
+            this.getHandle().lootTable = this.getHandle().getDefaultLootTable();
+        }
+
+        // Scissors start - Return a null loot table if the specified loot table is not valid
+        try {
+            NamespacedKey key = CraftNamespacedKey.fromMinecraft(this.getHandle().getLootTable());
+            return Bukkit.getLootTable(key);
+        } catch (Exception ex) {
+            return null;
+        }
+        // Scissors end
     }
 
     @Override