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xmpp.chapril.org-ejabberd/src/ejabberd_auth_odbc.erl

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%%%----------------------------------------------------------------------
%%% File : ejabberd_auth_odbc.erl
%%% Author : Alexey Shchepin <alexey@process-one.net>
%%% Purpose : Authentification via ODBC
%%% Created : 12 Dec 2004 by Alexey Shchepin <alexey@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2008 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., 59 Temple Place, Suite 330, Boston, MA
%%% 02111-1307 USA
%%%
%%%----------------------------------------------------------------------
-module(ejabberd_auth_odbc).
-author('alexey@process-one.net').
%% External exports
-export([start/1,
set_password/3,
check_password/3,
check_password/5,
try_register/3,
dirty_get_registered_users/0,
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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,
plain_password_required/0
]).
-include("ejabberd.hrl").
%%%----------------------------------------------------------------------
%%% API
%%%----------------------------------------------------------------------
start(_Host) ->
ok.
plain_password_required() ->
false.
check_password(User, Server, Password) ->
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try
LUser = exmpp_stringprep:nodeprep(User),
Username = ejabberd_odbc:escape(LUser),
LServer = exmpp_stringprep:nameprep(Server),
case catch odbc_queries:get_password(LServer, Username) of
{selected, ["password"], [{Password}]} ->
Password /= "";
_ ->
false
end
catch
_ ->
false
end.
check_password(User, Server, Password, StreamID, Digest) ->
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try
LUser = exmpp_stringprep:nodeprep(User),
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Username = ejabberd_odbc:escape(LUser),
LServer = exmpp_stringprep:nameprep(Server),
case catch odbc_queries:get_password(LServer, Username) of
{selected, ["password"], [{Passwd}]} ->
DigRes = if
Digest /= "" ->
Digest == sha:sha(StreamID ++ Passwd);
true ->
false
end,
if DigRes ->
true;
true ->
(Passwd == Password) and (Password /= "")
end;
_ ->
false
end
catch
_ ->
false
end.
%% @spec (User::string(), Server::string(), Password::string()) ->
%% ok | {error, invalid_jid}
set_password(User, Server, Password) ->
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try
LUser = exmpp_stringprep:nodeprep(User),
Username = ejabberd_odbc:escape(LUser),
Pass = ejabberd_odbc:escape(Password),
LServer = exmpp_stringprep:nameprep(Server),
case catch odbc_queries:set_password_t(LServer, Username, Pass) of
{atomic, ok} -> ok;
Other -> {error, Other}
end
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catch
_ ->
{error, invalid_jid}
end.
try_register(User, Server, Password) ->
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try
LUser = exmpp_stringprep:nodeprep(User),
Username = ejabberd_odbc:escape(LUser),
Pass = ejabberd_odbc:escape(Password),
LServer = exmpp_stringprep:nameprep(Server),
case catch odbc_queries:add_user(LServer, Username, Pass) of
{updated, 1} ->
{atomic, ok};
_ ->
{atomic, exists}
end
catch
_ ->
{error, invalid_jid}
end.
dirty_get_registered_users() ->
Servers = ejabberd_config:get_vh_by_auth_method(odbc),
lists:flatmap(
fun(Server) ->
get_vh_registered_users(Server)
end, Servers).
get_vh_registered_users(Server) ->
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LServer = exmpp_stringprep:nameprep(Server),
case catch odbc_queries:list_users(LServer) of
{selected, ["username"], Res} ->
[{U, LServer} || {U} <- Res];
_ ->
[]
end.
get_vh_registered_users(Server, Opts) ->
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LServer = exmpp_stringprep:nameprep(Server),
case catch odbc_queries:list_users(LServer, Opts) of
{selected, ["username"], Res} ->
[{U, LServer} || {U} <- Res];
_ ->
[]
end.
get_vh_registered_users_number(Server) ->
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LServer = exmpp_stringprep:nameprep(Server),
case catch odbc_queries:users_number(LServer) of
{selected, [_], [{Res}]} ->
list_to_integer(Res);
_ ->
0
end.
get_vh_registered_users_number(Server, Opts) ->
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LServer = exmpp_stringprep:nameprep(Server),
case catch odbc_queries:users_number(LServer, Opts) of
{selected, [_], [{Res}]} ->
list_to_integer(Res);
_Other ->
0
end.
get_password(User, Server) ->
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try
LUser = exmpp_stringprep:nodeprep(User),
Username = ejabberd_odbc:escape(LUser),
LServer = exmpp_stringprep:nameprep(Server),
case catch odbc_queries:get_password(LServer, Username) of
{selected, ["password"], [{Password}]} ->
Password;
_ ->
false
end
catch
_ ->
false
end.
get_password_s(User, Server) ->
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try
LUser = exmpp_stringprep:nodeprep(User),
Username = ejabberd_odbc:escape(LUser),
LServer = exmpp_stringprep:nameprep(Server),
case catch odbc_queries:get_password(LServer, Username) of
{selected, ["password"], [{Password}]} ->
Password;
_ ->
""
end
catch
_ ->
""
end.
is_user_exists(User, Server) ->
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try
LUser = exmpp_stringprep:nodeprep(User),
Username = ejabberd_odbc:escape(LUser),
LServer = exmpp_stringprep:nameprep(Server),
case catch odbc_queries:get_password(LServer, Username) of
{selected, ["password"], [{_Password}]} ->
true;
_ ->
false
end
catch
_ ->
false
end.
remove_user(User, Server) ->
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try
LUser = exmpp_stringprep:nodeprep(User),
Username = ejabberd_odbc:escape(LUser),
LServer = exmpp_stringprep:nameprep(Server),
catch odbc_queries:del_user(LServer, Username),
ejabberd_hooks:run(remove_user, exmpp_stringprep:nameprep(Server),
[User, Server])
catch
_ ->
error
end.
remove_user(User, Server, Password) ->
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try
LUser = exmpp_stringprep:nodeprep(User),
Username = ejabberd_odbc:escape(LUser),
Pass = ejabberd_odbc:escape(Password),
LServer = exmpp_stringprep:nameprep(Server),
F = fun() ->
Result = odbc_queries:del_user_return_password(
LServer, Username, Pass),
case Result of
{selected, ["password"], [{Password}]} ->
ejabberd_hooks:run(remove_user, exmpp_stringprep:nameprep(Server),
[User, Server]),
ok;
{selected, ["password"], []} ->
not_exists;
_ ->
not_allowed
end
end,
{atomic, Result} = odbc_queries:sql_transaction(LServer, F),
Result
catch
_ ->
error
end.