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%%%----------------------------------------------------------------------
%%% File : cyrsasl_anonymous.erl
%%% Author : Magnus Henoch <henoch@dtek.chalmers.se>
%%% Purpose : ANONYMOUS SASL mechanism
%%% See http://www.ietf.org/internet-drafts/draft-ietf-sasl-anon-05.txt
%%% Created : 23 Aug 2005 by Magnus Henoch <henoch@dtek.chalmers.se>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2015 ProcessOne
%%%
%%% This program is free software; you can redistribute it and/or
%%% modify it under the terms of the GNU General Public License as
%%% published by the Free Software Foundation; either version 2 of the
%%% License, or (at your option) any later version.
%%%
%%% This program is distributed in the hope that it will be useful,
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
%%% General Public License for more details.
%%%
%%% You should have received a copy of the GNU General Public License along
%%% with this program; if not, write to the Free Software Foundation, Inc.,
%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
%%%
%%%----------------------------------------------------------------------
-module(cyrsasl_anonymous).
-protocol({xep, 175, '1.2'}).
-export([start/1, stop/0, mech_new/4, mech_step/2]).
-behaviour(cyrsasl).
-record(state, {server = <<"">> :: binary()}).
start(_Opts) ->
cyrsasl:register_mechanism(<<"ANONYMOUS">>, ?MODULE, plain),
ok.
stop() -> ok.
mech_new(Host, _GetPassword, _CheckPassword, _CheckPasswordDigest) ->
{ok, #state{server = Host}}.
mech_step(#state{server = Server} = S, ClientIn) ->
User = iolist_to_binary([randoms:get_string(),
randoms:get_string(),
randoms:get_string()]),
case ejabberd_auth:is_user_exists(User, Server) of
true -> mech_step(S, ClientIn);
false -> {ok, [{username, User}, {auth_module, ejabberd_auth_anonymous}]}
end.
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