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%%%----------------------------------------------------------------------
%%% File : ejabberd_auth_odbc.erl
%%% Author : Alexey Shchepin <alexey@sevcom.net>
%%% Purpose : Authentification via ODBC
%%% Created : 12 Dec 2004 by Alexey Shchepin <alexey@sevcom.net>
%%% Id : $Id$
%%%----------------------------------------------------------------------
-module(ejabberd_auth_odbc).
-author('alexey@sevcom.net').
-vsn('$Revision$ ').
%% External exports
-export([start/0,
set_password/2,
check_password/2,
check_password/4,
try_register/2,
dirty_get_registered_users/0,
get_password/1,
get_password_s/1,
is_user_exists/1,
remove_user/1,
remove_user/2,
plain_password_required/0
]).
-record(passwd, {user, password}).
%%%----------------------------------------------------------------------
%%% API
%%%----------------------------------------------------------------------
start() ->
ok.
plain_password_required() ->
false.
check_password(User, Password) ->
case jlib:nodeprep(User) of
error ->
false;
LUser ->
Username = ejabberd_odbc:escape(LUser),
case catch ejabberd_odbc:sql_query(
["select password from users "
"where username='", Username, "'"]) of
{selected, ["password"], [{Password}]} ->
true;
_ ->
false
end
end.
check_password(User, Password, StreamID, Digest) ->
case jlib:nodeprep(User) of
error ->
false;
LUser ->
Username = ejabberd_odbc:escape(LUser),
case catch ejabberd_odbc:sql_query(
["select password from users "
"where username='", 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
end.
set_password(User, Password) ->
case jlib:nodeprep(User) of
error ->
{error, invalid_jid};
LUser ->
Username = ejabberd_odbc:escape(LUser),
Pass = ejabberd_odbc:escape(Password),
catch ejabberd_odbc:sql_query(
["begin;"
"delete from users where username='", Username ,"';"
"insert into users(username, password) "
"values ('", Username, "', '", Pass, "'); commit"])
end.
try_register(User, Password) ->
case jlib:nodeprep(User) of
error ->
{error, invalid_jid};
LUser ->
Username = ejabberd_odbc:escape(LUser),
Pass = ejabberd_odbc:escape(Password),
case catch ejabberd_odbc:sql_query(
["insert into users(username, password) "
"values ('", Username, "', '", Pass, "')"]) of
{updated, _} ->
{atomic, ok};
_ ->
{atomic, exists}
end
end.
dirty_get_registered_users() ->
case catch ejabberd_odbc:sql_query("select username from users") of
{selected, ["username"], Res} ->
[U || {U} <- Res];
_ ->
[]
end.
get_password(User) ->
case jlib:nodeprep(User) of
error ->
false;
LUser ->
Username = ejabberd_odbc:escape(LUser),
case catch ejabberd_odbc:sql_query(
["select password from users "
"where username='", Username, "'"]) of
{selected, ["password"], [{Password}]} ->
Password;
_ ->
false
end
end.
get_password_s(User) ->
case jlib:nodeprep(User) of
error ->
"";
LUser ->
Username = ejabberd_odbc:escape(LUser),
case catch ejabberd_odbc:sql_query(
["select password from users "
"where username='", Username, "'"]) of
{selected, ["password"], [{Password}]} ->
Password;
_ ->
""
end
end.
is_user_exists(User) ->
case jlib:nodeprep(User) of
error ->
false;
LUser ->
Username = ejabberd_odbc:escape(LUser),
case catch ejabberd_odbc:sql_query(
["select password from users "
"where username='", Username, "'"]) of
{selected, ["password"], [{_Password}]} ->
true;
_ ->
false
end
end.
remove_user(User) ->
case jlib:nodeprep(User) of
error ->
error;
LUser ->
Username = ejabberd_odbc:escape(LUser),
catch ejabberd_odbc:sql_query(
["delete from users where username='", Username ,"'"]),
ejabberd_hooks:run(remove_user, [User])
end.
remove_user(User, Password) ->
case jlib:nodeprep(User) of
error ->
error;
LUser ->
Username = ejabberd_odbc:escape(LUser),
Pass = ejabberd_odbc:escape(Password),
case catch
ejabberd_odbc:sql_query(
["begin;"
"select password from users where username='", Username, "';"
"delete from users "
"where username='", Username, "' and password='", Pass, "';"
"commit"]) of
{selected, ["password"], [{Password}]} ->
ejabberd_hooks:run(remove_user, [User]),
ok;
{selected, ["password"], []} ->
not_exists;
_ ->
not_allowed
end
end.
|
