[Bleeding] Implemented getting the hostname a player used to log in. Addresses BUKKIT-984

src/main/java/net/minecraft/server/NetLoginHandler.java

@@ -22,6 +22,7 @@ public class NetLoginHandler extends NetHandler {
     private String g = null;
     private Packet1Login h = null;
     private String loginKey = Long.toString(random.nextLong(), 16); // CraftBukkit - Security fix
+    public String hostname = ""; // CraftBukkit - add field
 
     public NetLoginHandler(MinecraftServer minecraftserver, Socket socket, String s) {
         this.server = minecraftserver;
@@ -60,6 +61,12 @@ public class NetLoginHandler extends NetHandler {
     }
 
     public void a(Packet2Handshake packet2handshake) {
+        // CraftBukkit start
+        int i = packet2handshake.a.indexOf(';');
+        if (i == -1) {
+            this.hostname = "";
+        } else this.hostname = packet2handshake.a.substring(i + 1);
+        // CraftBukkit end
         if (this.server.onlineMode) {
             this.loginKey = Long.toString(random.nextLong(), 16);
             this.networkManager.queue(new Packet2Handshake(this.loginKey));
@@ -92,7 +99,7 @@ public class NetLoginHandler extends NetHandler {
     }
 
     public void b(Packet1Login packet1login) {
-        EntityPlayer entityplayer = this.server.serverConfigurationManager.attemptLogin(this, packet1login.name);
+        EntityPlayer entityplayer = this.server.serverConfigurationManager.attemptLogin(this, packet1login.name, this.hostname); // CraftBukkit - add hostname parameter
 
         if (entityplayer != null) {
             this.server.serverConfigurationManager.b(entityplayer);

src/main/java/net/minecraft/server/ServerConfigurationManager.java

@@ -199,14 +199,14 @@ public class ServerConfigurationManager {
         return playerQuitEvent.getQuitMessage(); // CraftBukkit
     }
 
-    public EntityPlayer attemptLogin(NetLoginHandler netloginhandler, String s) {
+    public EntityPlayer attemptLogin(NetLoginHandler netloginhandler, String s, String hostname) { // CraftBukkit - add hostname parameter
         // CraftBukkit start - note: this entire method needs to be changed
         // Instead of kicking then returning, we need to store the kick reason
         // in the event, check with plugins to see if it's ok, and THEN kick
         // depending on the outcome. Also change any reference to this.e.c to entity.world
         EntityPlayer entity = new EntityPlayer(this.server, this.server.getWorldServer(0), s, new ItemInWorldManager(this.server.getWorldServer(0)));
-        Player player = (entity == null) ? null : (Player) entity.getBukkitEntity();
-        PlayerLoginEvent event = new PlayerLoginEvent(player);
+        Player player = (Player) entity.getBukkitEntity();
+        PlayerLoginEvent event = new PlayerLoginEvent(player, hostname);
 
         String s1 = netloginhandler.networkManager.getSocketAddress().toString();