From ead9fa41adb7c620a593dac005223c01453252c4 Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Mon, 21 Mar 2016 00:19:18 -0500
Subject: [PATCH] Support offline mode in whitelist command as well


diff --git a/src/main/java/net/minecraft/server/CommandWhitelist.java b/src/main/java/net/minecraft/server/CommandWhitelist.java
index b52bf74..8da137e 100644
--- a/src/main/java/net/minecraft/server/CommandWhitelist.java
+++ b/src/main/java/net/minecraft/server/CommandWhitelist.java
@@ -43,24 +43,35 @@ public class CommandWhitelist extends CommandAbstract {
                         throw new ExceptionUsage("commands.whitelist.add.usage", new Object[0]);
                     }
 
+                    // Paper start - Handle offline mode as well
+                    /*
                     gameprofile = minecraftserver.getUserCache().getProfile(astring[1]);
                     if (gameprofile == null) {
                         throw new CommandException("commands.whitelist.add.failed", new Object[] { astring[1]});
                     }
 
                     minecraftserver.getPlayerList().addWhitelist(gameprofile);
+                    */
+                    this.whitelist(minecraftserver, astring[1], true);
+                    // Paper end
                     a(icommandlistener, (ICommand) this, "commands.whitelist.add.success", new Object[] { astring[1]});
                 } else if (astring[0].equals("remove")) {
                     if (astring.length < 2) {
                         throw new ExceptionUsage("commands.whitelist.remove.usage", new Object[0]);
                     }
 
+                    // Paper start - Handle offline mode as well
+                    /*
                     gameprofile = minecraftserver.getPlayerList().getWhitelist().a(astring[1]);
                     if (gameprofile == null) {
                         throw new CommandException("commands.whitelist.remove.failed", new Object[] { astring[1]});
                     }
 
                     minecraftserver.getPlayerList().removeWhitelist(gameprofile);
+
+                    */
+                    this.whitelist(minecraftserver, astring[1], false);
+                    // Paper end
                     a(icommandlistener, (ICommand) this, "commands.whitelist.remove.success", new Object[] { astring[1]});
                 } else if (astring[0].equals("reload")) {
                     minecraftserver.getPlayerList().reloadWhitelist();
@@ -88,4 +99,43 @@ public class CommandWhitelist extends CommandAbstract {
             return Collections.emptyList();
         }
     }
+
+    // Paper start
+    /**
+     * Adds or removes a player from the game whitelist
+     *
+     * @param mcserver running instance of MinecraftServer
+     * @param playerName the player we're going to be whitelisting
+     * @param add whether we're adding or removing from the whitelist
+     */
+    private void whitelist(MinecraftServer mcserver, String playerName, boolean add) throws CommandException {
+        if (mcserver.getOnlineMode()) {
+            // The reason we essentially copy/pasta NMS code here is because the NMS online-only version
+            // is capable of providing feedback to the person running the command based on whether or
+            // not the player is a real online-mode account
+            GameProfile gameprofile = mcserver.getUserCache().getProfile(playerName);
+            if (gameprofile == null) {
+                if (add) {
+                    throw new CommandException("commands.whitelist.add.failed", new Object[] { playerName});
+                } else {
+                    throw new CommandException("commands.whitelist.remove.failed", new Object[] { playerName});
+                }
+            }
+
+            if (add) {
+                mcserver.getPlayerList().addWhitelist(gameprofile);
+            } else {
+                mcserver.getPlayerList().removeWhitelist(gameprofile);
+            }
+        } else {
+            // versus our offline version, which will always report success all of the time
+            org.bukkit.OfflinePlayer offlinePlayer = org.bukkit.Bukkit.getOfflinePlayer(playerName);
+            if (add) {
+                offlinePlayer.setWhitelisted(true);
+            } else {
+                offlinePlayer.setWhitelisted(false);
+            }
+        }
+    }
+    // Paper end
 }
-- 
2.8.0