[1.7.10] How do offline servers resolve UUIDs?

[DaPorkchop_]

Hi, I'm trying to make a mod for transporting players to other servers and I need to send the player's player.dat file to the destination server.  I already have a way of doing this (a sort of webserver running in the mod) and a way to download the data to the world/playerdata directory.  The problem is that I need to get the UUID of the player on the receiving side, and want to know if there's any way to get it on an offline server.  I can use MojangApi for online servers,  but so far skimming through the DedicatedServer code I havent found anything useful for resolving offline UUIDs.  How does minecraft resolve them on servers with online mode off and how can I implement this (i.e. will the same player have a different UUID on two different offline servers?)

 

Thanks!

[DaPorkchop_]

Thanks! I eventually found this in NetHandlerLoginServer:

 

protected GameProfile func_152506_a(GameProfile p_152506_1_)

    {

        UUID uuid = UUID.nameUUIDFromBytes(("OfflinePlayer:" + p_152506_1_.getName()).getBytes(Charsets.UTF_);

        return new GameProfile(uuid, p_152506_1_.getName());

    }