%%%----------------------------------------------------------------------
%%% File : ejabberd_auth_internal.erl
%%% Author : Alexey Shchepin <alexey@sevcom.net>
%%% Purpose : Authentification via mnesia
%%% Created : 12 Dec 2004 by Alexey Shchepin <alexey@sevcom.net>
%%% Id : $Id$
%%%----------------------------------------------------------------------
-module(ejabberd_auth_internal).
-author('alexey@sevcom.net').
-vsn('$Revision$ ').
%% External exports
-export([start/1,
set_password/3,
check_password/3,
check_password/5,
try_register/3,
dirty_get_registered_users/0,
get_vh_registered_users/1,
get_password/2,
get_password_s/2,
is_user_exists/2,
remove_user/2,
remove_user/3,
plain_password_required/0
]).
-include("ejabberd.hrl").
-record(passwd, {us, password}).
%%%----------------------------------------------------------------------
%%% API
%%%----------------------------------------------------------------------
start(Host) ->
mnesia:create_table(passwd, [{disc_copies, [node()]},
{attributes, record_info(fields, passwd)}]),
update_table(),
ejabberd_ctl:register_commands(
Host,
[{"registered-users", "list all registered users"}],
ejabberd_auth, ctl_process_get_registered),
ok.
plain_password_required() ->
false.
check_password(User, Server, Password) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Server),
US = {LUser, LServer},
case catch mnesia:dirty_read({passwd, US}) of
[#passwd{password = Password}] ->
true;
_ ->
false
end.
check_password(User, Server, Password, StreamID, Digest) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Server),
US = {LUser, LServer},
case catch mnesia:dirty_read({passwd, US}) of
[#passwd{password = Passwd}] ->
DigRes = if
Digest /= "" ->
Digest == sha:sha(StreamID ++ Passwd);
true ->
false
end,
if DigRes ->
true;
true ->
(Passwd == Password) and (Password /= "")
end;
_ ->
false
end.
set_password(User, Server, Password) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Server),
US = {LUser, LServer},
if
(LUser == error) or (LServer == error) ->
{error, invalid_jid};
true ->
F = fun() ->
mnesia:write(#passwd{us = US,
password = Password})
end,
mnesia:transaction(F)
end.
try_register(User, Server, Password) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Server),
US = {LUser, LServer},
if
(LUser == error) or (LServer == error) ->
{error, invalid_jid};
true ->
F = fun() ->
case mnesia:read({passwd, US}) of
[] ->
mnesia:write(#passwd{us = US,
password = Password}),
ok;
[_E] ->
exists
end
end,
mnesia:transaction(F)
end.
dirty_get_registered_users() ->
mnesia:dirty_all_keys(passwd).
get_vh_registered_users(Server) ->
LServer = jlib:nameprep(Server),
mnesia:dirty_select(
passwd,
[{#passwd{us = '$1', _ = '_'},
[{'==', {element, 2, '$1'}, LServer}],
['$1']}]).
get_password(User, Server) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Server),
US = {LUser, LServer},
case catch mnesia:dirty_read(passwd, US) of
[#passwd{password = Password}] ->
Password;
_ ->
false
end.
get_password_s(User, Server) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Server),
US = {LUser, LServer},
case catch mnesia:dirty_read(passwd, US) of
[#passwd{password = Password}] ->
Password;
_ ->
[]
end.
is_user_exists(User, Server) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Server),
US = {LUser, LServer},
case catch mnesia:dirty_read({passwd, US}) of
[] ->
false;
[_] ->
true;
_ ->
false
end.
remove_user(User, Server) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Server),
US = {LUser, LServer},
F = fun() ->
mnesia:delete({passwd, US})
end,
mnesia:transaction(F),
ejabberd_hooks:run(remove_user, LServer, [User, Server]).
remove_user(User, Server, Password) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Server),
US = {LUser, LServer},
F = fun() ->
case mnesia:read({passwd, US}) of
[#passwd{password = Password}] ->
mnesia:delete({passwd, US}),
ok;
[_] ->
not_allowed;
_ ->
not_exists
end
end,
case mnesia:transaction(F) of
{atomic, ok} ->
ejabberd_hooks:run(remove_user, LServer, [User, Server]),
ok;
{atomic, Res} ->
Res;
_ ->
bad_request
end.
update_table() ->
Fields = record_info(fields, passwd),
case mnesia:table_info(passwd, attributes) of
Fields ->
ok;
[user, password] ->
?INFO_MSG("Converting passwd table from "
"{user, password} format", []),
Host = ?MYNAME,
{atomic, ok} = mnesia:create_table(
ejabberd_auth_internal_tmp_table,
[{disc_only_copies, [node()]},
{type, bag},
{local_content, true},
{record_name, passwd},
{attributes, record_info(fields, passwd)}]),
mnesia:transform_table(passwd, ignore, Fields),
F1 = fun() ->
mnesia:write_lock_table(ejabberd_auth_internal_tmp_table),
mnesia:foldl(
fun(#passwd{us = U} = R, _) ->
mnesia:dirty_write(
ejabberd_auth_internal_tmp_table,
R#passwd{us = {U, Host}})
end, ok, passwd)
end,
mnesia:transaction(F1),
mnesia:clear_table(passwd),
F2 = fun() ->
mnesia:write_lock_table(passwd),
mnesia:foldl(
fun(R, _) ->
mnesia:dirty_write(R)
end, ok, ejabberd_auth_internal_tmp_table)
end,
mnesia:transaction(F2),
mnesia:delete_table(ejabberd_auth_internal_tmp_table);
_ ->
?INFO_MSG("Recreating passwd table", []),
mnesia:transform_table(passwd, ignore, Fields)
end.
