mirror of
https://github.com/processone/ejabberd.git
synced 2024-11-28 16:34:13 +01:00
308 lines
9.8 KiB
Erlang
308 lines
9.8 KiB
Erlang
%%%----------------------------------------------------------------------
|
|
%%% File : ejabberd_auth_riak.erl
|
|
%%% Author : Evgeniy Khramtsov <ekhramtsov@process-one.net>
|
|
%%% Purpose : Authentification via Riak
|
|
%%% Created : 12 Nov 2012 by Evgeniy Khramtsov <ekhramtsov@process-one.net>
|
|
%%%
|
|
%%%
|
|
%%% ejabberd, Copyright (C) 2002-2016 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(ejabberd_auth_riak).
|
|
|
|
-compile([{parse_transform, ejabberd_sql_pt}]).
|
|
|
|
-author('alexey@process-one.net').
|
|
|
|
-behaviour(ejabberd_auth).
|
|
|
|
%% External exports
|
|
-export([start/1, set_password/3, check_password/4,
|
|
check_password/6, try_register/3,
|
|
dirty_get_registered_users/0, get_vh_registered_users/1,
|
|
get_vh_registered_users/2,
|
|
get_vh_registered_users_number/1,
|
|
get_vh_registered_users_number/2, get_password/2,
|
|
get_password_s/2, is_user_exists/2, remove_user/2,
|
|
remove_user/3, store_type/0, export/1, import/3,
|
|
plain_password_required/0]).
|
|
-export([passwd_schema/0]).
|
|
|
|
-include("ejabberd.hrl").
|
|
-include("ejabberd_sql_pt.hrl").
|
|
|
|
-record(passwd, {us = {<<"">>, <<"">>} :: {binary(), binary()} | '$1',
|
|
password = <<"">> :: binary() | scram() | '_'}).
|
|
|
|
-define(SALT_LENGTH, 16).
|
|
|
|
start(_Host) ->
|
|
ok.
|
|
|
|
plain_password_required() ->
|
|
case is_scrammed() of
|
|
false -> false;
|
|
true -> true
|
|
end.
|
|
|
|
store_type() ->
|
|
case is_scrammed() of
|
|
false -> plain; %% allows: PLAIN DIGEST-MD5 SCRAM
|
|
true -> scram %% allows: PLAIN SCRAM
|
|
end.
|
|
|
|
passwd_schema() ->
|
|
{record_info(fields, passwd), #passwd{}}.
|
|
|
|
check_password(User, AuthzId, Server, Password) ->
|
|
if AuthzId /= <<>> andalso AuthzId /= User ->
|
|
false;
|
|
true ->
|
|
LUser = jid:nodeprep(User),
|
|
LServer = jid:nameprep(Server),
|
|
case ejabberd_riak:get(passwd, passwd_schema(), {LUser, LServer}) of
|
|
{ok, #passwd{password = Password}} when is_binary(Password) ->
|
|
Password /= <<"">>;
|
|
{ok, #passwd{password = Scram}} when is_record(Scram, scram) ->
|
|
is_password_scram_valid(Password, Scram);
|
|
_ ->
|
|
false
|
|
end
|
|
end.
|
|
|
|
check_password(User, AuthzId, Server, Password, Digest,
|
|
DigestGen) ->
|
|
if AuthzId /= <<>> andalso AuthzId /= User ->
|
|
false;
|
|
true ->
|
|
LUser = jid:nodeprep(User),
|
|
LServer = jid:nameprep(Server),
|
|
case ejabberd_riak:get(passwd, passwd_schema(), {LUser, LServer}) of
|
|
{ok, #passwd{password = Passwd}} when is_binary(Passwd) ->
|
|
DigRes = if Digest /= <<"">> ->
|
|
Digest == DigestGen(Passwd);
|
|
true -> false
|
|
end,
|
|
if DigRes -> true;
|
|
true -> (Passwd == Password) and (Password /= <<"">>)
|
|
end;
|
|
{ok, #passwd{password = Scram}}
|
|
when is_record(Scram, scram) ->
|
|
Passwd = jlib:decode_base64(Scram#scram.storedkey),
|
|
DigRes = if Digest /= <<"">> ->
|
|
Digest == DigestGen(Passwd);
|
|
true -> false
|
|
end,
|
|
if DigRes -> true;
|
|
true -> (Passwd == Password) and (Password /= <<"">>)
|
|
end;
|
|
_ -> false
|
|
end
|
|
end.
|
|
|
|
set_password(User, Server, Password) ->
|
|
LUser = jid:nodeprep(User),
|
|
LServer = jid:nameprep(Server),
|
|
US = {LUser, LServer},
|
|
if (LUser == error) or (LServer == error) ->
|
|
{error, invalid_jid};
|
|
true ->
|
|
Password2 = case is_scrammed() and is_binary(Password)
|
|
of
|
|
true -> password_to_scram(Password);
|
|
false -> Password
|
|
end,
|
|
ok = ejabberd_riak:put(#passwd{us = US, password = Password2},
|
|
passwd_schema(),
|
|
[{'2i', [{<<"host">>, LServer}]}])
|
|
end.
|
|
|
|
try_register(User, Server, PasswordList) ->
|
|
LUser = jid:nodeprep(User),
|
|
LServer = jid:nameprep(Server),
|
|
Password = if is_list(PasswordList); is_binary(PasswordList) ->
|
|
iolist_to_binary(PasswordList);
|
|
true -> PasswordList
|
|
end,
|
|
US = {LUser, LServer},
|
|
if (LUser == error) or (LServer == error) ->
|
|
{error, invalid_jid};
|
|
true ->
|
|
case ejabberd_riak:get(passwd, passwd_schema(), US) of
|
|
{error, notfound} ->
|
|
Password2 = case is_scrammed() and
|
|
is_binary(Password)
|
|
of
|
|
true -> password_to_scram(Password);
|
|
false -> Password
|
|
end,
|
|
{atomic, ejabberd_riak:put(
|
|
#passwd{us = US,
|
|
password = Password2},
|
|
passwd_schema(),
|
|
[{'2i', [{<<"host">>, LServer}]}])};
|
|
{ok, _} ->
|
|
exists;
|
|
Err ->
|
|
{atomic, Err}
|
|
end
|
|
end.
|
|
|
|
dirty_get_registered_users() ->
|
|
lists:flatmap(
|
|
fun(Server) ->
|
|
get_vh_registered_users(Server)
|
|
end, ejabberd_config:get_vh_by_auth_method(riak)).
|
|
|
|
get_vh_registered_users(Server) ->
|
|
LServer = jid:nameprep(Server),
|
|
case ejabberd_riak:get_keys_by_index(passwd, <<"host">>, LServer) of
|
|
{ok, Users} ->
|
|
Users;
|
|
_ ->
|
|
[]
|
|
end.
|
|
|
|
get_vh_registered_users(Server, _) ->
|
|
get_vh_registered_users(Server).
|
|
|
|
get_vh_registered_users_number(Server) ->
|
|
LServer = jid:nameprep(Server),
|
|
case ejabberd_riak:count_by_index(passwd, <<"host">>, LServer) of
|
|
{ok, N} ->
|
|
N;
|
|
_ ->
|
|
0
|
|
end.
|
|
|
|
get_vh_registered_users_number(Server, _) ->
|
|
get_vh_registered_users_number(Server).
|
|
|
|
get_password(User, Server) ->
|
|
LUser = jid:nodeprep(User),
|
|
LServer = jid:nameprep(Server),
|
|
case ejabberd_riak:get(passwd, passwd_schema(), {LUser, LServer}) of
|
|
{ok, #passwd{password = Password}}
|
|
when is_binary(Password) ->
|
|
Password;
|
|
{ok, #passwd{password = Scram}}
|
|
when is_record(Scram, scram) ->
|
|
{jlib:decode_base64(Scram#scram.storedkey),
|
|
jlib:decode_base64(Scram#scram.serverkey),
|
|
jlib:decode_base64(Scram#scram.salt),
|
|
Scram#scram.iterationcount};
|
|
_ -> false
|
|
end.
|
|
|
|
get_password_s(User, Server) ->
|
|
LUser = jid:nodeprep(User),
|
|
LServer = jid:nameprep(Server),
|
|
case ejabberd_riak:get(passwd, passwd_schema(), {LUser, LServer}) of
|
|
{ok, #passwd{password = Password}}
|
|
when is_binary(Password) ->
|
|
Password;
|
|
{ok, #passwd{password = Scram}}
|
|
when is_record(Scram, scram) ->
|
|
<<"">>;
|
|
_ -> <<"">>
|
|
end.
|
|
|
|
is_user_exists(User, Server) ->
|
|
LUser = jid:nodeprep(User),
|
|
LServer = jid:nameprep(Server),
|
|
case ejabberd_riak:get(passwd, passwd_schema(), {LUser, LServer}) of
|
|
{error, notfound} -> false;
|
|
{ok, _} -> true;
|
|
Err -> Err
|
|
end.
|
|
|
|
remove_user(User, Server) ->
|
|
LUser = jid:nodeprep(User),
|
|
LServer = jid:nameprep(Server),
|
|
ejabberd_riak:delete(passwd, {LUser, LServer}),
|
|
ok.
|
|
|
|
remove_user(User, Server, Password) ->
|
|
LUser = jid:nodeprep(User),
|
|
LServer = jid:nameprep(Server),
|
|
case ejabberd_riak:get(passwd, passwd_schema(), {LUser, LServer}) of
|
|
{ok, #passwd{password = Password}}
|
|
when is_binary(Password) ->
|
|
ejabberd_riak:delete(passwd, {LUser, LServer}),
|
|
ok;
|
|
{ok, #passwd{password = Scram}}
|
|
when is_record(Scram, scram) ->
|
|
case is_password_scram_valid(Password, Scram) of
|
|
true ->
|
|
ejabberd_riak:delete(passwd, {LUser, LServer}),
|
|
ok;
|
|
false -> not_allowed
|
|
end;
|
|
_ -> not_exists
|
|
end.
|
|
|
|
%%%
|
|
%%% SCRAM
|
|
%%%
|
|
|
|
is_scrammed() ->
|
|
scram ==
|
|
ejabberd_config:get_local_option({auth_password_format, ?MYNAME},
|
|
fun(V) -> V end).
|
|
|
|
password_to_scram(Password) ->
|
|
password_to_scram(Password,
|
|
?SCRAM_DEFAULT_ITERATION_COUNT).
|
|
|
|
password_to_scram(Password, IterationCount) ->
|
|
Salt = randoms:bytes(?SALT_LENGTH),
|
|
SaltedPassword = scram:salted_password(Password, Salt,
|
|
IterationCount),
|
|
StoredKey =
|
|
scram:stored_key(scram:client_key(SaltedPassword)),
|
|
ServerKey = scram:server_key(SaltedPassword),
|
|
#scram{storedkey = jlib:encode_base64(StoredKey),
|
|
serverkey = jlib:encode_base64(ServerKey),
|
|
salt = jlib:encode_base64(Salt),
|
|
iterationcount = IterationCount}.
|
|
|
|
is_password_scram_valid(Password, Scram) ->
|
|
IterationCount = Scram#scram.iterationcount,
|
|
Salt = jlib:decode_base64(Scram#scram.salt),
|
|
SaltedPassword = scram:salted_password(Password, Salt,
|
|
IterationCount),
|
|
StoredKey =
|
|
scram:stored_key(scram:client_key(SaltedPassword)),
|
|
jlib:decode_base64(Scram#scram.storedkey) == StoredKey.
|
|
|
|
export(_Server) ->
|
|
[{passwd,
|
|
fun(Host, #passwd{us = {LUser, LServer}, password = Password})
|
|
when LServer == Host ->
|
|
[?SQL("delete from users where username=%(LUser)s;"),
|
|
?SQL("insert into users(username, password) "
|
|
"values (%(LUser)s, %(Password)s);")];
|
|
(_Host, _R) ->
|
|
[]
|
|
end}].
|
|
|
|
import(LServer, riak, #passwd{} = Passwd) ->
|
|
ejabberd_riak:put(Passwd, passwd_schema(), [{'2i', [{<<"host">>, LServer}]}]);
|
|
import(_, _, _) ->
|
|
pass.
|