1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
%%%-------------------------------------------------------------------
%%% File : ejabberd_auth_pam.erl
%%% Author : Evgeniy Khramtsov <xram@jabber.ru>
%%% Purpose : PAM authentication
%%% Created : 5 Jul 2007 by Evgeniy Khramtsov <xram@jabber.ru>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2017 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_pam).
-behaviour(ejabberd_config).
-author('xram@jabber.ru').
-behaviour(ejabberd_auth).
-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, plain_password_required/0,
opt_type/1]).
start(_Host) ->
ejabberd:start_app(p1_pam).
set_password(_User, _Server, _Password) ->
{error, not_allowed}.
check_password(User, AuthzId, Server, Password, _Digest,
_DigestGen) ->
check_password(User, AuthzId, Server, Password).
check_password(User, AuthzId, Host, Password) ->
if AuthzId /= <<>> andalso AuthzId /= User ->
false;
true ->
Service = get_pam_service(Host),
UserInfo = case get_pam_userinfotype(Host) of
username -> User;
jid -> <<User/binary, "@", Host/binary>>
end,
case catch epam:authenticate(Service, UserInfo,
Password)
of
true -> true;
_ -> false
end
end.
try_register(_User, _Server, _Password) ->
{error, not_allowed}.
dirty_get_registered_users() -> [].
get_vh_registered_users(_Host) -> [].
get_vh_registered_users(_Host, _) -> [].
get_vh_registered_users_number(_Host) -> 0.
get_vh_registered_users_number(_Host, _) -> 0.
get_password(_User, _Server) -> false.
get_password_s(_User, _Server) -> <<"">>.
%% @spec (User, Server) -> true | false | {error, Error}
%% TODO: Improve this function to return an error instead of 'false' when connection to PAM failed
is_user_exists(User, Host) ->
Service = get_pam_service(Host),
UserInfo = case get_pam_userinfotype(Host) of
username -> User;
jid -> <<User/binary, "@", Host/binary>>
end,
case catch epam:acct_mgmt(Service, UserInfo) of
true -> true;
_ -> false
end.
remove_user(_User, _Server) -> {error, not_allowed}.
remove_user(_User, _Server, _Password) -> not_allowed.
plain_password_required() -> true.
store_type() -> external.
%%====================================================================
%% Internal functions
%%====================================================================
get_pam_service(Host) ->
ejabberd_config:get_option(
{pam_service, Host},
fun iolist_to_binary/1,
<<"ejabberd">>).
get_pam_userinfotype(Host) ->
ejabberd_config:get_option(
{pam_userinfotype, Host},
fun(username) -> username;
(jid) -> jid
end,
username).
opt_type(pam_service) -> fun iolist_to_binary/1;
opt_type(pam_userinfotype) ->
fun (username) -> username;
(jid) -> jid
end;
opt_type(_) -> [pam_service, pam_userinfotype].
|
