From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Allink <arclicious@vivaldi.net>
Date: Sun, 10 Jul 2022 10:29:03 +0100
Subject: [PATCH] Disable running commands in books by default


diff --git a/src/main/java/net/minecraft/world/item/WrittenBookItem.java b/src/main/java/net/minecraft/world/item/WrittenBookItem.java
index 31911c09fe15753ae32fa39417bdc9e9de552a88..8ef33e2e2374c456cb9d4aab8ed6f1742951f402 100644
--- a/src/main/java/net/minecraft/world/item/WrittenBookItem.java
+++ b/src/main/java/net/minecraft/world/item/WrittenBookItem.java
@@ -2,6 +2,8 @@ package net.minecraft.world.item;
 
 import java.util.List;
 import javax.annotation.Nullable;
+
+import me.totalfreedom.scissors.ScissorsConfig;
 import net.minecraft.ChatFormatting;
 import net.minecraft.commands.CommandSourceStack;
 import net.minecraft.core.BlockPos;
@@ -9,8 +11,7 @@ import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.ListTag;
 import net.minecraft.nbt.StringTag;
 import net.minecraft.nbt.Tag;
-import net.minecraft.network.chat.Component;
-import net.minecraft.network.chat.ComponentUtils;
+import net.minecraft.network.chat.*;
 import net.minecraft.stats.Stats;
 import net.minecraft.util.StringUtil;
 import net.minecraft.world.InteractionHand;
@@ -111,8 +112,7 @@ public class WrittenBookItem extends Item {
 
     public static boolean resolveBookComponents(ItemStack book, @Nullable CommandSourceStack commandSource, @Nullable Player player) {
         CompoundTag compoundTag = book.getTag();
-        if (io.papermc.paper.configuration.GlobalConfiguration.get().itemValidation.resolveSelectorsInBooks && compoundTag != null && !compoundTag.getBoolean("resolved")) { // Paper
-            compoundTag.putBoolean("resolved", true);
+        if (compoundTag != null) { // Paper
             if (!makeSureTagIsValid(compoundTag)) {
                 return false;
             } else {
@@ -161,8 +161,41 @@ public class WrittenBookItem extends Item {
             component2 = Component.literal(text);
         }
 
-        return Component.Serializer.toJson(component2);
+        return Component.Serializer.toJson(!ScissorsConfig.runCommandsInBooks ? sanitize(component2, 0) : component2); // Scissors - Allow server owners to disable run command in books
+    }
+
+    // Scissors start - Allow server owners to disable run command in books
+    public static Component sanitize(Component component, int depth) {
+        if (depth > 128) {
+            return Component.nullToEmpty("Sanitization function depth limit exceeded");
+        }
+
+        MutableComponent component2 = component.copy();
+
+        final Style style = component2.getStyle();
+        final ClickEvent clickEvent = style.getClickEvent();
+
+        if(clickEvent != null && clickEvent.getAction().equals(ClickEvent.Action.RUN_COMMAND))
+        {
+            final String clickEventValue = clickEvent.getValue();
+
+            component2 = component2.copy().setStyle(style
+                    .withClickEvent(null)
+                    .withHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, Component.nullToEmpty("Would've " + (clickEventValue.startsWith("/") ? "ran": "said") + ": " + clickEvent.getValue())))
+            );
+        }
+
+        final List<Component> processedExtra = component2.getSiblings()
+                .stream()
+                .map(comp -> sanitize(comp, depth + 1))
+                .toList();
+
+        component2.getSiblings().clear();
+        component2.getSiblings().addAll(processedExtra);
+
+        return component2;
     }
+    // Scissors end
 
     @Override
     public boolean isFoil(ItemStack stack) {