From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Thu, 6 Jun 2019 17:40:30 -0500
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 609afae1bfdbeb82fb48bdbb0200427a67f1cd2a..ce9a348796a8c262e144c09d753cda2e28998fbf 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1459,6 +1459,7 @@ public class ServerPlayer extends Player {
 
     @Override
     public void openTextEdit(SignBlockEntity sign) {
+        if (level.purpurConfig.signAllowColors) this.connection.send(sign.getTranslatedUpdatePacket(textFilteringEnabled)); // Purpur
         sign.setAllowedPlayerEditor(this.getUUID());
         this.connection.send(new ClientboundBlockUpdatePacket(this.level, sign.getBlockPos()));
         this.connection.send(new ClientboundOpenSignEditorPacket(sign.getBlockPos()));
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 143fb89c6207c8c44ad8eb3da8129f825b73c624..461e80185d25529c367ede7df571fbff172f0384 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -3001,9 +3001,21 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
                 }
                 // Paper end
                 if (this.player.isTextFilteringEnabled()) {
-                    lines.add(net.kyori.adventure.text.Component.text(SharedConstants.filterText(currentLine.getFiltered())));
+                    String filtered = currentLine.getFiltered();
+                    if (worldserver.purpurConfig.signAllowColors) {
+                        if (player.hasPermission("purpur.sign.color")) filtered = filtered.replaceAll("(?i)&([0-9a-fr])", "\u00a7$1");
+                        if (player.hasPermission("purpur.sign.style")) filtered = filtered.replaceAll("(?i)&([l-or])", "\u00a7$1");
+                        if (player.hasPermission("purpur.sign.magic")) filtered = filtered.replaceAll("(?i)&([kr])", "\u00a7$1");
+                    }
+                    lines.add(net.kyori.adventure.text.Component.text(SharedConstants.filterText(filtered)));
                 } else {
-                    lines.add(net.kyori.adventure.text.Component.text(SharedConstants.filterText(currentLine.getRaw())));
+                    String raw = currentLine.getRaw();
+                    if (worldserver.purpurConfig.signAllowColors) {
+                        if (player.hasPermission("purpur.sign.color")) raw = raw.replaceAll("(?i)&([0-9a-fr])", "\u00a7$1");
+                        if (player.hasPermission("purpur.sign.style")) raw = raw.replaceAll("(?i)&([l-or])", "\u00a7$1");
+                        if (player.hasPermission("purpur.sign.magic")) raw = raw.replaceAll("(?i)&([kr])", "\u00a7$1");
+                    }
+                    lines.add(net.kyori.adventure.text.Component.text(SharedConstants.filterText(raw)));
                 }
             }
             SignChangeEvent event = new SignChangeEvent((org.bukkit.craftbukkit.block.CraftBlock) player.getWorld().getBlockAt(x, y, z), this.player.getBukkitEntity(), lines);
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 9b5d11ece006d7aa893360a84ba652c666517ac1..2519e8946064a2326ef9acde1e66d0671a62daed 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
@@ -180,6 +180,18 @@ public class SignBlockEntity extends BlockEntity implements CommandSource { // C
         return filtered ? this.filteredMessages : this.messages;
     }
 
+    // Purpur start
+    public ClientboundBlockEntityDataPacket getTranslatedUpdatePacket(boolean filtered) {
+        CompoundTag nbt = save(new CompoundTag());
+        for (int i = 0; i < 4; ++i) {
+            String line = io.papermc.paper.adventure.PaperAdventure.LEGACY_AMPERSAND.serialize(io.papermc.paper.adventure.PaperAdventure.asAdventure(getMessages(filtered)[i]));
+            nbt.putString("Text" + (i + 1), net.kyori.adventure.text.serializer.gson.GsonComponentSerializer.gson().serialize(net.kyori.adventure.text.Component.text(line)));
+        }
+        nbt.putString("PurpurEditor", "true");
+        return new ClientboundBlockEntityDataPacket(worldPosition, 9, nbt);
+    }
+    // Purpur end
+
     @Nullable
     @Override
     public ClientboundBlockEntityDataPacket getUpdatePacket() {
diff --git a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
index 6ec28fc27b5362fe6928677b8c17dc60e56b36cc..9eda28fd9b10df4ae2f2df1b03b4321b203608bc 100644
--- a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
+++ b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
@@ -109,8 +109,10 @@ public class PurpurWorldConfig {
         });
     }
 
+    public boolean signAllowColors = false;
     public boolean signRightClickEdit = false;
     private void signSettings() {
+        signAllowColors = getBoolean("blocks.sign.allow-colors", signAllowColors);
         signRightClickEdit = getBoolean("blocks.sign.right-click-edit", signRightClickEdit);
     }