papermc/CraftBukkit-Patches/0093-Fix-Player-Banning.patch

From 2e56c863ba5d4ae0afee8be802e7b05ee8108458 Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Tue, 15 Apr 2014 10:32:48 +1000
Subject: [PATCH] Fix Player Banning

This issue stems from the fact that Bukkit's API only allows a UUID to be banned, but Minecraft requires both a UUID and name. To fix this we modify the code to require a UUID or a name, or both. The correct fix would be expanding the API to be able to provide a name, however this would require plugin changes.

diff --git a/src/main/java/net/minecraft/server/GameProfileBanEntry.java b/src/main/java/net/minecraft/server/GameProfileBanEntry.java
index 27ce9d9..e68d2b3 100644
--- a/src/main/java/net/minecraft/server/GameProfileBanEntry.java
+++ b/src/main/java/net/minecraft/server/GameProfileBanEntry.java
@@ -28,20 +28,29 @@ public class GameProfileBanEntry extends ExpirableListEntry<GameProfile> {
     }
 
     private static GameProfile b(JsonObject jsonobject) {
-        if (jsonobject.has("uuid") && jsonobject.has("name")) {
+        // Spigot start
+        // this whole method has to be reworked to account for the fact Bukkit only accepts UUID bans and gives no way for usernames to be stored!
+        UUID uuid = null;
+        String name = null;
+        if (jsonobject.has("uuid")) {
             String s = jsonobject.get("uuid").getAsString();
 
-            UUID uuid;
-
             try {
                 uuid = UUID.fromString(s);
             } catch (Throwable throwable) {
-                return null;
             }
 
-            return new GameProfile(uuid, jsonobject.get("name").getAsString());
+        }
+        if ( jsonobject.has("name"))
+        {
+            name = jsonobject.get("name").getAsString();
+        }
+        if ( uuid != null || name != null )
+        {
+            return new GameProfile( uuid, name );
         } else {
             return null;
         }
+        // Spigot End
     }
 }
-- 
2.5.0