From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: granny <granny@purpurmc.org>
Date: Fri, 9 Jun 2023 02:26:42 -0700
Subject: [PATCH] Signs allow color codes


diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index ef86dac1613cd19035eb27008851c56533535bd9..fe66f37a2b385870bf72f97e73b297b9bc2ef9c3 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1570,6 +1570,7 @@ public class ServerPlayer extends Player {
 
     @Override
     public void openTextEdit(SignBlockEntity sign, boolean front) {
+        if (level().purpurConfig.signAllowColors) this.connection.send(sign.getTranslatedUpdatePacket(textFilteringEnabled, front)); // Purpur
         this.connection.send(new ClientboundBlockUpdatePacket(this.level(), sign.getBlockPos()));
         this.connection.send(new ClientboundOpenSignEditorPacket(sign.getBlockPos(), front));
     }
diff --git a/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java
index 0521240dddde12d78cc05deda7fac11690f5d155..e326c289fd33b5a9fe49eebaedb29abbdd9a0e4b 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java
@@ -203,11 +203,18 @@ public class SignBlockEntity extends BlockEntity implements CommandSource { // C
             FilteredText filteredtext = (FilteredText) list.get(i);
             Style chatmodifier = signtext.getMessage(i, entityhuman.isTextFilteringEnabled()).getStyle();
 
-            if (entityhuman.isTextFilteringEnabled()) {
-                signtext = signtext.setMessage(i, Component.literal(net.minecraft.SharedConstants.filterText(filteredtext.filteredOrEmpty())).setStyle(chatmodifier)); // Paper - filter sign text to chat only
+            // Purpur start TODO: This is probably wrong but we'll see what happens
+            org.bukkit.entity.Player player =  (org.bukkit.craftbukkit.entity.CraftPlayer) entityhuman.getBukkitEntity();
+            String line = net.minecraft.SharedConstants.filterText(entityhuman.isTextFilteringEnabled() ? filteredtext.filteredOrEmpty() : filteredtext.raw());
+            if (level.purpurConfig.signAllowColors) {
+                if (player.hasPermission("purpur.sign.color")) line = line.replaceAll("(?i)&([0-9a-fr])", "\u00a7$1");
+                if (player.hasPermission("purpur.sign.style")) line = line.replaceAll("(?i)&([l-or])", "\u00a7$1");
+                if (player.hasPermission("purpur.sign.magic")) line = line.replaceAll("(?i)&([kr])", "\u00a7$1");
+                signtext = signtext.setMessage(i, io.papermc.paper.adventure.PaperAdventure.asVanilla(net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserialize(line)).copy().setStyle(chatmodifier));
             } else {
-                signtext = signtext.setMessage(i, Component.literal(net.minecraft.SharedConstants.filterText(filteredtext.raw())).setStyle(chatmodifier), Component.literal(net.minecraft.SharedConstants.filterText(filteredtext.filteredOrEmpty())).setStyle(chatmodifier)); // Paper - filter sign text to chat only
+                signtext = signtext.setMessage(i, io.papermc.paper.adventure.PaperAdventure.asVanilla(net.kyori.adventure.text.Component.text(line)).copy().setStyle(chatmodifier));
             }
+            // Purpur end
         }
 
         // CraftBukkit start
@@ -346,6 +353,23 @@ public class SignBlockEntity extends BlockEntity implements CommandSource { // C
         return ClientboundBlockEntityDataPacket.create(this);
     }
 
+    // Purpur start
+    public ClientboundBlockEntityDataPacket getTranslatedUpdatePacket(boolean filtered, boolean front) {
+        final CompoundTag nbt = new CompoundTag();
+        this.saveAdditional(nbt);
+        final Component[] lines = front ? frontText.getMessages(filtered) : backText.getMessages(filtered);
+        for (int i = 0; i < 4; i++) {
+            final var component = io.papermc.paper.adventure.PaperAdventure.asAdventure(lines[i]);
+            final String line = net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacyAmpersand().serialize(component);
+            final var text = net.kyori.adventure.text.Component.text(line);
+            final String json = net.kyori.adventure.text.serializer.gson.GsonComponentSerializer.gson().serialize(text);
+            nbt.putString("Text" + (i + 1), json);
+        }
+        nbt.putString("PurpurEditor", "true");
+        return ClientboundBlockEntityDataPacket.create(this, entity -> nbt);
+    }
+    // Purpur end
+
     @Override
     public CompoundTag getUpdateTag() {
         return this.saveWithoutMetadata();
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index a467208789d77d46376de18f7111daf8a589e393..ce69519fbbc75174421a326e8054452df410bea2 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -959,6 +959,11 @@ public class PurpurWorldConfig {
         shulkerBoxAllowOversizedStacks = getBoolean("blocks.shulker_box.allow-oversized-stacks", shulkerBoxAllowOversizedStacks);
     }
 
+    public boolean signAllowColors = false;
+    private void signSettings() {
+        signAllowColors = getBoolean("blocks.sign.allow-colors", signAllowColors);
+    }
+
     public boolean slabHalfBreak = false;
     private void slabSettings() {
         slabHalfBreak = getBoolean("blocks.slab.break-individual-slabs-when-sneaking", slabHalfBreak);