From 448a2ac9aa4422c108643494f19c1cdbe900ed3b 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

---
 .../net/minecraft/server/EntityPlayer.java    |  1 +
 .../minecraft/server/IChatBaseComponent.java  |  1 +
 .../minecraft/server/PlayerConnection.java    |  8 +++++++
 .../net/minecraft/server/TileEntitySign.java  | 23 +++++++++++++++++++
 .../net/pl3x/purpur/PurpurWorldConfig.java    |  3 +++
 5 files changed, 36 insertions(+)

diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
index 07f8f0fa7d..3556e86fd7 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -1269,6 +1269,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
     public void openSign(TileEntitySign tileentitysign) {
         tileentitysign.a((EntityHuman) this);
         this.playerConnection.sendPacket(new PacketPlayOutOpenSignEditor(tileentitysign.getPosition()));
+        if (world.purpurConfig.signAllowColors) this.playerConnection.sendPacket(tileentitysign.getTranslatedUpdatePacket()); // Purpur
     }
 
     public int nextContainerCounter() { // CraftBukkit - void -> int
diff --git a/src/main/java/net/minecraft/server/IChatBaseComponent.java b/src/main/java/net/minecraft/server/IChatBaseComponent.java
index fd3e6cda6a..750896fc82 100644
--- a/src/main/java/net/minecraft/server/IChatBaseComponent.java
+++ b/src/main/java/net/minecraft/server/IChatBaseComponent.java
@@ -344,6 +344,7 @@ public interface IChatBaseComponent extends Message, IChatFormatted, Iterable<IC
             return jsonobject;
         }
 
+        public static String toJson(IChatBaseComponent ichatbasecomponent) { return a(ichatbasecomponent); } // Purpur - OBFHELPER
         public static String a(IChatBaseComponent ichatbasecomponent) {
             return IChatBaseComponent.ChatSerializer.a.toJson(ichatbasecomponent);
         }
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index e2c7ab7f04..be5b5b0573 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -2701,6 +2701,14 @@ public class PlayerConnection implements PacketListenerPlayIn {
                     }
                 }
                 // Paper end
+                // Purpur start
+                if (worldserver.purpurConfig.signAllowColors) {
+                    lines[i] = astring[i];
+                    if (player.hasPermission("purpur.sign.color")) lines[i] = lines[i].replaceAll("(?i)&([0-9a-fr])", "\u00a7$1");
+                    if (player.hasPermission("purpur.sign.style")) lines[i] = lines[i].replaceAll("(?i)&([l-or])", "\u00a7$1");
+                    if (player.hasPermission("purpur.sign.magic")) lines[i] = lines[i].replaceAll("(?i)&([kr])", "\u00a7$1");
+                } else
+                // Purpur end
                 lines[i] = SharedConstants.a(astring[i]); //Paper - Replaced with anvil color stripping method to stop exploits that allow colored signs to be created.
             }
             SignChangeEvent event = new SignChangeEvent((org.bukkit.craftbukkit.block.CraftBlock) player.getWorld().getBlockAt(x, y, z), this.server.getPlayer(this.player), lines);
diff --git a/src/main/java/net/minecraft/server/TileEntitySign.java b/src/main/java/net/minecraft/server/TileEntitySign.java
index e1ab299756..1778c5474f 100644
--- a/src/main/java/net/minecraft/server/TileEntitySign.java
+++ b/src/main/java/net/minecraft/server/TileEntitySign.java
@@ -1,6 +1,14 @@
 package net.minecraft.server;
 
 import com.mojang.brigadier.exceptions.CommandSyntaxException;
+import net.md_5.bungee.api.chat.BaseComponent;
+import net.md_5.bungee.api.chat.TextComponent;
+import net.md_5.bungee.chat.BaseComponentSerializer;
+import net.md_5.bungee.chat.ComponentSerializer;
+import net.md_5.bungee.chat.TextComponentSerializer;
+import org.bukkit.craftbukkit.util.CraftChatMessage;
+
+import java.util.List;
 import java.util.UUID;
 import javax.annotation.Nullable;
 
@@ -93,6 +101,21 @@ public class TileEntitySign extends TileEntity implements ICommandListener { //
         this.g[i] = null;
     }
 
+    // Purpur start
+    public PacketPlayOutTileEntityData getTranslatedUpdatePacket() {
+        NBTTagCompound nbt = save(new NBTTagCompound());
+        for (int i = 0; i < 4; ++i) {
+            String line = CraftChatMessage.fromComponent(lines[i]).replace("\u00a7", "&");
+            if (line.endsWith("&r")) {
+                line = line.substring(0, line.length() - 2);
+            }
+            nbt.setString("Text" + (i + 1), CraftChatMessage.toJSON(CraftChatMessage.fromString(line)[0]));
+        }
+        nbt.setString("PurpurEditor", "true");
+        return new PacketPlayOutTileEntityData(position, 9, nbt);
+    }
+    // Purpur end
+
     @Nullable
     @Override
     public PacketPlayOutTileEntityData getUpdatePacket() {
diff --git a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
index ed6102b407..5df442c5b8 100644
--- a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
+++ b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
@@ -92,9 +92,12 @@ public class PurpurWorldConfig {
         playerInvulnerableWhileAcceptingResourcePack = getBoolean("gameplay-mechanics.player.invulnerable-while-accepting-resource-pack", playerInvulnerableWhileAcceptingResourcePack);
     }
 
+    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);
+        
     }
 
     public boolean turtleEggsBreakFromExpOrbs = true;
-- 
2.26.2