Scissors/patches/server/0031-Make-the-maximum-tag-s...

64 lines
2.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Business Goose <arclicious@vivaldi.net>
Date: Sun, 1 May 2022 01:19:36 +0100
Subject: [PATCH] Make the maximum tag size a constant & add a method for
getting tag size
diff --git a/src/main/java/com/github/atlasmediagroup/scissors/NbtUtility.java b/src/main/java/com/github/atlasmediagroup/scissors/NbtUtility.java
index 058203440fd071ce5edbe18391ea60f0a5fbee3a..978cb98c81195640fb3704d2077148f2be0dca36 100644
--- a/src/main/java/com/github/atlasmediagroup/scissors/NbtUtility.java
+++ b/src/main/java/com/github/atlasmediagroup/scissors/NbtUtility.java
@@ -1,17 +1,49 @@
package com.github.atlasmediagroup.scissors;
-import net.minecraft.nbt.CompoundTag;
+import com.google.common.base.Strings;
+import com.google.common.collect.Lists;
+import net.minecraft.nbt.*;
import javax.annotation.Nullable;
import java.nio.charset.StandardCharsets;
+import java.util.Collections;
+import java.util.List;
public class NbtUtility
{
+ public static final long MAXIMUM_SIZE = (256 * 1024);
+
+ public static long getTagSize(@Nullable Tag tag, int depth) {
+ if(depth > 512) return 0;
+ if(tag == null) return 0;
+
+ long size = 0;
+
+ if(tag.getType() == CompoundTag.TYPE) {
+ CompoundTag compoundTag = (CompoundTag) tag;
+ for(String key : compoundTag.getAllKeys()) {
+ size += getTagSize(compoundTag.get(key), depth + 1);
+ }
+ } else if(tag.getType() == ListTag.TYPE) {
+ ListTag listTag = (ListTag) tag;
+ for (Tag tag1 : listTag) {
+ size += getTagSize(tag1, depth + 1);
+ }
+ } else {
+ size += tag.getAsString().getBytes(StandardCharsets.UTF_8).length;
+ }
+
+ return size;
+ }
+
+ public static long getTagSize(@Nullable CompoundTag tag) {
+ return getTagSize(tag, 0);
+ }
public static boolean isTooLarge(@Nullable CompoundTag tag)
{
if (tag == null) return false;
- return tag.toString().getBytes(StandardCharsets.UTF_8).length > (256 * 1024);
+ return getTagSize(tag) > MAXIMUM_SIZE;
}
public static class Item