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%%%----------------------------------------------------------------------
%%% File : cyrsasl_anonymous.erl
%%% Author : Magnus Henoch <henoch@dtek.chalmers.se>
%%% Purpose : ANONYMOUS SASL mechanism
%%% Created : 23 Aug 2005 by Magnus Henoch <henoch@dtek.chalmers.se>
%%% Id : $Id$
%%%----------------------------------------------------------------------
%% See http://www.ietf.org/internet-drafts/draft-ietf-sasl-anon-05.txt
-module(cyrsasl_anonymous).
-vsn('$Revision$').
-export([start/1, stop/0, mech_new/3, mech_step/2]).
-behaviour(cyrsasl).
-record(state, {server}).
start(_Opts) ->
cyrsasl:register_mechanism("ANONYMOUS", ?MODULE, false),
ok.
stop() ->
ok.
mech_new(Host, _GetPassword, _CheckPassword) ->
{ok, #state{server = Host}}.
mech_step(State, _ClientIn) ->
%% We generate a random username:
User = lists:concat([randoms:get_string() | tuple_to_list(now())]),
Server = State#state.server,
%% Checks that the username is available
case ejabberd_auth:is_user_exists(User, Server) of
true -> {error, "not-authorized"};
false -> {ok, [{username, User}]}
end.
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