mirror of
https://github.com/processone/ejabberd.git
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106 lines
3.4 KiB
Erlang
106 lines
3.4 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : ejabberd_auth_external.erl
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%%% Author : Alexey Shchepin <alexey@process-one.net>
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%%% Purpose : Authentication via LDAP external script
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%%% Created : 12 Dec 2004 by Alexey Shchepin <alexey@process-one.net>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2019 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_external).
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-author('alexey@process-one.net').
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-behaviour(ejabberd_auth).
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-export([start/1, stop/1, reload/1, set_password/3, check_password/4,
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try_register/3, user_exists/2, remove_user/2,
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store_type/1, plain_password_required/1]).
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-include("logger.hrl").
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%%%----------------------------------------------------------------------
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%%% API
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%%%----------------------------------------------------------------------
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start(Host) ->
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extauth:start(Host).
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stop(Host) ->
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extauth:stop(Host).
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reload(Host) ->
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extauth:reload(Host).
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plain_password_required(_) -> true.
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store_type(_) -> external.
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check_password(User, AuthzId, Server, Password) ->
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if AuthzId /= <<>> andalso AuthzId /= User ->
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{nocache, false};
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true ->
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check_password_extauth(User, AuthzId, Server, Password)
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end.
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set_password(User, Server, Password) ->
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case extauth:set_password(User, Server, Password) of
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Res when is_boolean(Res) -> {cache, {ok, Password}};
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{error, Reason} -> failure(User, Server, set_password, Reason)
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end.
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try_register(User, Server, Password) ->
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case extauth:try_register(User, Server, Password) of
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true -> {cache, {ok, Password}};
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false -> {cache, {error, not_allowed}};
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{error, Reason} -> failure(User, Server, try_register, Reason)
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end.
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user_exists(User, Server) ->
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case extauth:user_exists(User, Server) of
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Res when is_boolean(Res) -> {cache, Res};
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{error, Reason} -> failure(User, Server, user_exists, Reason)
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end.
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remove_user(User, Server) ->
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case extauth:remove_user(User, Server) of
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false -> {error, not_allowed};
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true -> ok;
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{error, Reason} ->
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{_, Err} = failure(User, Server, remove_user, Reason),
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Err
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end.
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check_password_extauth(User, _AuthzId, Server, Password) ->
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if Password /= <<"">> ->
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case extauth:check_password(User, Server, Password) of
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Res when is_boolean(Res) -> {cache, Res};
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{error, Reason} ->
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{Tag, _} = failure(User, Server, check_password, Reason),
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{Tag, false}
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end;
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true ->
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{nocache, false}
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end.
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-spec failure(binary(), binary(), atom(), any()) -> {nocache, {error, db_failure}}.
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failure(User, Server, Fun, Reason) ->
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?ERROR_MSG("External authentication program failed when calling "
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"'~s' for ~s@~s: ~p", [Fun, User, Server, Reason]),
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{nocache, {error, db_failure}}.
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