%%%-------------------------------------------------------------------
%%% File : ejabberd_oauth_rest.erl
%%% Author : Alexey Shchepin <alexey@process-one.net>
%%% Purpose : OAUTH2 REST backend
%%% Created : 26 Jul 2016 by Alexey Shchepin <alexey@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2021 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_oauth_rest).
-behaviour(ejabberd_oauth).
-export([init/0,
store/1,
lookup/1,
clean/1,
lookup_client/1,
store_client/1]).
-include("ejabberd_oauth.hrl").
-include("logger.hrl").
-include_lib("xmpp/include/jid.hrl").
init() ->
rest:start(ejabberd_config:get_myname()),
ok.
store(R) ->
Path = path(<<"store">>),
%% Retry 2 times, with a backoff of 500millisec
{User, Server} = R#oauth_token.us,
SJID = jid:encode({User, Server, <<"">>}),
case rest:with_retry(
post,
[ejabberd_config:get_myname(), Path, [],
{[{<<"token">>, R#oauth_token.token},
{<<"user">>, SJID},
{<<"scope">>, R#oauth_token.scope},
{<<"expire">>, R#oauth_token.expire}
]}], 2, 500) of
{ok, Code, _} when Code == 200 orelse Code == 201 ->
ok;
Err ->
?ERROR_MSG("Failed to store oauth record ~p: ~p", [R, Err]),
{error, db_failure}
end.
lookup(Token) ->
Path = path(<<"lookup">>),
case rest:with_retry(post, [ejabberd_config:get_myname(), Path, [],
{[{<<"token">>, Token}]}],
2, 500) of
{ok, 200, {Data}} ->
SJID = proplists:get_value(<<"user">>, Data, <<>>),
JID = jid:decode(SJID),
US = {JID#jid.luser, JID#jid.lserver},
Scope = proplists:get_value(<<"scope">>, Data, []),
Expire = proplists:get_value(<<"expire">>, Data, 0),
{ok, #oauth_token{token = Token,
us = US,
scope = Scope,
expire = Expire}};
{ok, 404, _Resp} ->
error;
Other ->
?ERROR_MSG("Unexpected response for oauth lookup: ~p", [Other]),
case ejabberd_option:oauth_cache_rest_failure_life_time() of
infinity -> error;
Time -> {cache_with_timeout, error, Time}
end
end.
clean(_TS) ->
ok.
path(Path) ->
Base = ejabberd_option:ext_api_path_oauth(),
<<Base/binary, "/", Path/binary>>.
store_client(#oauth_client{client_id = ClientID,
client_name = ClientName,
grant_type = GrantType,
options = Options} = R) ->
Path = path(<<"store_client">>),
SGrantType =
case GrantType of
password -> <<"password">>;
implicit -> <<"implicit">>
end,
SOptions = misc:term_to_base64(Options),
%% Retry 2 times, with a backoff of 500millisec
case rest:with_retry(
post,
[ejabberd_config:get_myname(), Path, [],
{[{<<"client_id">>, ClientID},
{<<"client_name">>, ClientName},
{<<"grant_type">>, SGrantType},
{<<"options">>, SOptions}
]}], 2, 500) of
{ok, Code, _} when Code == 200 orelse Code == 201 ->
ok;
Err ->
?ERROR_MSG("Failed to store oauth record ~p: ~p", [R, Err]),
{error, db_failure}
end.
lookup_client(ClientID) ->
Path = path(<<"lookup_client">>),
case rest:with_retry(post, [ejabberd_config:get_myname(), Path, [],
{[{<<"client_id">>, ClientID}]}],
2, 500) of
{ok, 200, {Data}} ->
ClientName = proplists:get_value(<<"client_name">>, Data, <<>>),
SGrantType = proplists:get_value(<<"grant_type">>, Data, <<>>),
GrantType =
case SGrantType of
<<"password">> -> password;
<<"implicit">> -> implicit
end,
SOptions = proplists:get_value(<<"options">>, Data, <<>>),
case misc:base64_to_term(SOptions) of
{term, Options} ->
{ok, #oauth_client{client_id = ClientID,
client_name = ClientName,
grant_type = GrantType,
options = Options}};
_ ->
error
end;
{ok, 404, _Resp} ->
error;
Other ->
?ERROR_MSG("Unexpected response for oauth lookup: ~p", [Other]),
error
end.
