mirror of
https://github.com/processone/ejabberd.git
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94 lines
2.9 KiB
Erlang
94 lines
2.9 KiB
Erlang
%%%-------------------------------------------------------------------
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%%% File : ejabberd_auth_pam.erl
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%%% Author : Evgeniy Khramtsov <xram@jabber.ru>
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%%% Purpose : PAM authentication
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%%% Created : 5 Jul 2007 by Evgeniy Khramtsov <xram@jabber.ru>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2018 ProcessOne
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%%%
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%%% This program is free software; you can redistribute it and/or
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%%% modify it under the terms of the GNU General Public License as
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%%% published by the Free Software Foundation; either version 2 of the
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%%% License, or (at your option) any later version.
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%%%
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%%% This program is distributed in the hope that it will be useful,
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%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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%%% General Public License for more details.
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%%%
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%%% You should have received a copy of the GNU General Public License along
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%%% with this program; if not, write to the Free Software Foundation, Inc.,
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%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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%%%
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%%%-------------------------------------------------------------------
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-module(ejabberd_auth_pam).
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-behaviour(ejabberd_config).
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-author('xram@jabber.ru').
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-behaviour(ejabberd_auth).
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-export([start/1, stop/1, check_password/4,
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user_exists/2, store_type/1, plain_password_required/1,
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opt_type/1]).
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start(_Host) ->
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ejabberd:start_app(epam).
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stop(_Host) ->
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ok.
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check_password(User, AuthzId, Host, Password) ->
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if AuthzId /= <<>> andalso AuthzId /= User ->
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false;
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true ->
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Service = get_pam_service(Host),
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UserInfo = case get_pam_userinfotype(Host) of
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username -> User;
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jid -> <<User/binary, "@", Host/binary>>
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end,
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case catch epam:authenticate(Service, UserInfo,
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Password)
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of
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true -> true;
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_ -> false
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end
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end.
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user_exists(User, Host) ->
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Service = get_pam_service(Host),
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UserInfo = case get_pam_userinfotype(Host) of
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username -> User;
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jid -> <<User/binary, "@", Host/binary>>
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end,
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case catch epam:acct_mgmt(Service, UserInfo) of
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true -> true;
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false -> false;
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_Err -> {error, db_failure}
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end.
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plain_password_required(_) -> true.
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store_type(_) -> external.
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%%====================================================================
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%% Internal functions
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%%====================================================================
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get_pam_service(Host) ->
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ejabberd_config:get_option({pam_service, Host}, <<"ejabberd">>).
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get_pam_userinfotype(Host) ->
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ejabberd_config:get_option({pam_userinfotype, Host}, username).
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-spec opt_type(pam_service) -> fun((binary()) -> binary());
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(pam_userinfotype) -> fun((username | jid) -> username | jid);
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(atom()) -> [atom()].
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opt_type(pam_service) -> fun iolist_to_binary/1;
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opt_type(pam_userinfotype) ->
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fun (username) -> username;
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(jid) -> jid
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end;
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opt_type(_) -> [pam_service, pam_userinfotype].
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