From 4afff7942e9d14f9265eacf05920eb6a62934960 Mon Sep 17 00:00:00 2001
From: Focusvity <nathan.curran10012@gmail.com>
Date: Sun, 11 Feb 2024 19:45:18 +1100
Subject: [PATCH] Add depth limit to updateCustomBlockEntityTag

---
 ...-limit-to-updateCustomBlockEntityTag.patch | 75 +++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 patches/server/0052-Add-depth-limit-to-updateCustomBlockEntityTag.patch

diff --git a/patches/server/0052-Add-depth-limit-to-updateCustomBlockEntityTag.patch b/patches/server/0052-Add-depth-limit-to-updateCustomBlockEntityTag.patch
new file mode 100644
index 0000000..b9f41b9
--- /dev/null
+++ b/patches/server/0052-Add-depth-limit-to-updateCustomBlockEntityTag.patch
@@ -0,0 +1,75 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Focusvity <nathan.curran10012@gmail.com>
+Date: Sun, 11 Feb 2024 19:44:20 +1100
+Subject: [PATCH] Add depth limit to updateCustomBlockEntityTag
+
+
+diff --git a/src/main/java/net/minecraft/world/item/BlockItem.java b/src/main/java/net/minecraft/world/item/BlockItem.java
+index 8d2c0accadaf0c5d28e7db6e62a05f6c619cf02f..a59b3e5dde7325e43b8041bccc51d370fdc17c55 100644
+--- a/src/main/java/net/minecraft/world/item/BlockItem.java
++++ b/src/main/java/net/minecraft/world/item/BlockItem.java
+@@ -4,12 +4,19 @@ import java.util.Iterator;
+ import java.util.List;
+ import java.util.Map;
+ import java.util.Objects;
++// Scissors start
++import java.util.regex.Matcher;
++import java.util.regex.Pattern;
++// Scissors end
+ import java.util.stream.Stream;
+ import javax.annotation.Nullable;
++
++import me.totalfreedom.scissors.ScissorsConfig;
+ import net.minecraft.advancements.CriteriaTriggers;
+ import net.minecraft.core.BlockPos;
+ import net.minecraft.nbt.CompoundTag;
+ import net.minecraft.nbt.ListTag;
++import net.minecraft.nbt.Tag; // Scissors
+ import net.minecraft.network.chat.Component;
+ import net.minecraft.server.MinecraftServer;
+ import net.minecraft.server.level.ServerLevel;
+@@ -98,7 +105,7 @@ public class BlockItem extends Item {
+                         iblockdata1 = this.updateBlockStateFromTag(blockposition, world, itemstack, iblockdata1);
+                         // Paper start - Reset placed block on exception
+                         try {
+-                        this.updateCustomBlockEntityTag(blockposition, world, entityhuman, itemstack, iblockdata1);
++                            this.updateCustomBlockEntityTag(blockposition, world, entityhuman, itemstack, iblockdata1);
+                         } catch (Exception e) {
+                             oldBlockstate.update(true, false);
+                             if (entityhuman instanceof ServerPlayer player) {
+@@ -240,6 +247,35 @@ public class BlockItem extends Item {
+             if (nbttagcompound != null) {
+                 BlockEntity tileentity = world.getBlockEntity(pos);
+ 
++                // Scissors start
++                if (nbttagcompound.contains("CustomName")) {
++                    String customName = nbttagcompound.getString("CustomName");
++                    Pattern EXTRA_PATTERN = Pattern.compile("\"extra\":(\\[(.*?)\\{|\\[\\{)");
++                    Matcher matcher = EXTRA_PATTERN.matcher(customName);
++                    if (matcher.find()) {
++                        String matcherString = matcher.group();
++                        int penalty = (matcherString.startsWith("\"extra\":[{") ? (int) matcher.results().count() : matcher.group().replace("\"extra\":", "").replace("{", "").length()) * 12;
++                        if (penalty > ScissorsConfig.componentDepthLimit) {
++                            return false;
++                        }
++                    }
++                }
++
++                for (Tag tag : nbttagcompound.tags.values()) {
++                    if (tag instanceof CompoundTag compoundTag && compoundTag.contains("messages")) {
++                        ListTag messagesList = compoundTag.getList("messages", 8);
++                        Pattern TRANSLATE_PLACEHOLDER_PATTERN = Pattern.compile("%[0-9]+\\$s");
++                        Matcher matcher = TRANSLATE_PLACEHOLDER_PATTERN.matcher(messagesList.toString());
++                        if (matcher.find()) {
++                            int penalty = (int) matcher.results().count() * 12;
++                            if (penalty > ScissorsConfig.componentDepthLimit) {
++                                return false;
++                            }
++                        }
++                    }
++                }
++                // Scissors end
++
+                 if (tileentity != null) {
+                     if (!world.isClientSide && tileentity.onlyOpCanSetNbt() && (player == null || !(player.canUseGameMasterBlocks() || (player.getAbilities().instabuild && player.getBukkitEntity().hasPermission("minecraft.nbt.place"))))) { // Spigot - add permission
+                         return false;