From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Tue, 3 Nov 2020 01:25:06 -0600
Subject: [PATCH] Allow color codes in books


diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index e2f57af54380c7afa5c6ac00c8aba74e838465c4..c84cb931a78390fd485b95e8c9b9904de920f254 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1273,13 +1273,16 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
                 itemstack1.setTag(nbttagcompound.copy());
             }
 
+            // Purpur start
+            boolean hasPerm = getCraftPlayer().hasPermission("purpur.book.color.edit") || getCraftPlayer().hasPermission("purpur.book.color.sign");
             itemstack1.addTagElement("author", StringTag.valueOf(this.player.getName().getString()));
             if (this.player.isTextFilteringEnabled()) {
-                itemstack1.addTagElement("title", StringTag.valueOf((String) title.filteredOrElse("")));
+                itemstack1.addTagElement("title", StringTag.valueOf(color(title.filteredOrElse(""), hasPerm)));
             } else {
-                itemstack1.addTagElement("filtered_title", StringTag.valueOf((String) title.filteredOrElse("")));
-                itemstack1.addTagElement("title", StringTag.valueOf((String) title.raw()));
+                itemstack1.addTagElement("filtered_title", StringTag.valueOf(color(title.filteredOrElse(""), hasPerm)));
+                itemstack1.addTagElement("title", StringTag.valueOf(color(title.raw(), hasPerm)));
             }
+            // Purpur end
 
             this.updateBookPages(pages, (s) -> {
                 return Component.Serializer.toJson(Component.literal(s));
@@ -1291,10 +1294,13 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
     public void updateBookPages(List<FilteredText<String>> list, UnaryOperator<String> unaryoperator, ItemStack itemstack, int slot, ItemStack handItem) { // CraftBukkit
         ListTag nbttaglist = new ListTag();
 
+        // Purpur start
+        boolean hasPerm = getCraftPlayer().hasPermission("purpur.book.color.edit");
         if (this.player.isTextFilteringEnabled()) {
-            Stream<StringTag> stream = list.stream().map((filteredtext) -> { // CraftBukkit - decompile error
-                return StringTag.valueOf((String) unaryoperator.apply((String) filteredtext.filteredOrElse("")));
+            Stream<StringTag> stream = list.stream().map(s -> color(s.filteredOrElse(""), hasPerm, false)).map((s) -> { // CraftBukkit - decompile error
+                return StringTag.valueOf((String) unaryoperator.apply(s));
             });
+            // Purpur end
 
             Objects.requireNonNull(nbttaglist);
             stream.forEach(nbttaglist::add);
@@ -1304,11 +1310,11 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
 
             for (int j = list.size(); i < j; ++i) {
                 FilteredText<String> filteredtext = (FilteredText) list.get(i);
-                String s = (String) filteredtext.raw();
+                String s = color(filteredtext.raw(), hasPerm, false); // Purpur
 
                 nbttaglist.add(StringTag.valueOf((String) unaryoperator.apply(s)));
                 if (filteredtext.isFiltered()) {
-                    nbttagcompound.putString(String.valueOf(i), (String) unaryoperator.apply((String) filteredtext.filteredOrElse("")));
+                    nbttagcompound.putString(String.valueOf(i), (String) unaryoperator.apply((String) color(filteredtext.filteredOrElse(""), hasPerm, false))); // Purpur
                 }
             }
 
@@ -1321,6 +1327,16 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
         this.player.getInventory().setItem(slot, CraftEventFactory.handleEditBookEvent(player, slot, handItem, itemstack)); // CraftBukkit // Paper - Don't ignore result (see other callsite for handleEditBookEvent)
     }
 
+    // Purpur start
+    private String color(String str, boolean hasPerm) {
+        return color(str, hasPerm, true);
+    }
+
+    private String color(String str, boolean hasPerm, boolean parseHex) {
+        return hasPerm ? org.bukkit.ChatColor.color(str, parseHex) : str;
+    }
+    // Purpur end
+
     @Override
     public void handleEntityTagQuery(ServerboundEntityTagQuery packet) {
         PacketUtils.ensureRunningOnSameThread(packet, this, this.player.getLevel());