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 317342df5d3afe65e09853fd9ffe4aca127152d2..970c711a6631cf3e16ca09704452b32b68672ce9 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1359,13 +1359,16 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
                 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(title.filteredOrEmpty()));
+                itemstack1.addTagElement("title", StringTag.valueOf(color(title.filteredOrEmpty(), hasPerm)));
             } else {
-                itemstack1.addTagElement("filtered_title", StringTag.valueOf(title.filteredOrEmpty()));
-                itemstack1.addTagElement("title", StringTag.valueOf(title.raw()));
+                itemstack1.addTagElement("filtered_title", StringTag.valueOf(color(title.filteredOrEmpty(), hasPerm)));
+                itemstack1.addTagElement("title", StringTag.valueOf(color(title.raw(), hasPerm)));
             }
+            // Purpur end
 
             this.updateBookPages(pages, (s) -> {
                 return Component.Serializer.toJson(Component.literal(s));
@@ -1377,10 +1380,13 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
     private void updateBookPages(List<FilteredText> 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(filteredtext.filteredOrEmpty()));
+            Stream<StringTag> stream = list.stream().map(s -> color(s.filteredOrEmpty(), hasPerm, false)).map((s) -> { // CraftBukkit - decompile error
+                return StringTag.valueOf((String) unaryoperator.apply(s));
             });
+            // Purpur end
 
             Objects.requireNonNull(nbttaglist);
             stream.forEach(nbttaglist::add);
@@ -1390,11 +1396,11 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
 
             for (int j = list.size(); i < j; ++i) {
                 FilteredText filteredtext = (FilteredText) list.get(i);
-                String s = 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(filteredtext.filteredOrEmpty()));
+                    nbttagcompound.putString(String.valueOf(i), (String) unaryoperator.apply((String) color(filteredtext.filteredOrEmpty(), hasPerm, false))); // Purpur
                 }
             }
 
@@ -1407,6 +1413,16 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
         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.serverLevel());