Network Protocol/Server/gpsp.gs.nintendowifi.net

Server gpsp.gs.nintendowifi.net

Client and server communicate using the PARAM-STRING protocol. The server is listening at TCP port 29901. This server translates profile ids into user nicks.

Parameters

Here is a list of found parameters for further analysis: param-of-server-gpsp.list (35 KB text file)

Protocol Parameters

Name	Sender	Param Type	Description
final	both	empty	Last parameter of a parameter list. One or more parameter lists may follow.
gamename	client	string	For MKWii it's always "mariokartwii"
namespaceid	client	integer	Only value 16 seen yet.
numopids	client	integer	Number of profile ids in parameter opids. (usually 0 – 32).
o	server	profile id	The following uniquenick is the translated nick of this player. The series is sorted by this profile id.
oldone	server	empty	Abbreviation for »others list done«. It marks the end of the o and uniquenick sequence.
opids	client	profile id	profile ids separated by an "|". Generally all profile ids of the friends list are send. If there is no entry in the list, opids contains a single "0".
otherslist	both	empty	Header of the otherslist list.
profileid	client	profile id	profile id of the questioner.
sesskey	client	integer	Session-ID
uniquenick	server	user nick	This is the translated nick based on the profile id of the previous o parameter.

Parameter Lists

Only one parameter list has been found yet. The name of the first parameter is used as caption. See PARAM-STRING for the protocol and the naming convention.

otherslist

The client sends a list with profile ids to the server to translate them into user nicks:

      otherslist =
         sesskey = 210997796
       profileid = 302594991
        numopids = 3
           opids = 469604577|447214276|354860031
     namespaceid = 16
        gamename = mariokartwii
           final /

The parameters sesskey and numopids are ignored by the server.

The server answers with a sequence of o+uniquenick pairs; one pair for each requested id of opids. The usage of the nick names is not clear yet. The list is sorted by the profile ids of the parameter o. Parameter oldone terminates the sequence.

      otherslist =
               o = 354860031
      uniquenick = 4anbjhi1jRMCJ23ioucc
               o = 447214276
      uniquenick = 7dkt0p6gtRMCJ2ljh72h
               o = 469604577
      uniquenick = 7hl05oif6RMCJ142q65e
          oldone =
           final /

Server Tests

Here are some notes after direct tests with the server:

• The server ignores the parameters sesskey and numopids and just replies one nick for each profile id in opids .
• Server answers only contain nicks for friends of profileid (clients profile id). So the server must know the friend lists of all players.
• The returned nick list is sorted by the o parameters. Numerical sort is used (pid 20 is before pid 100).
• After opening the connection, only one query is possible. To get more nicks, the connection must be closed and re-opened again.