%%%------------------------------------------------------------------- %%% File : ejabberd_oauth.erl %%% Author : Alexey Shchepin %%% Purpose : OAUTH2 support %%% Created : 20 Mar 2015 by Alexey Shchepin %%% %%% %%% ejabberd, Copyright (C) 2002-2015 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). -behaviour(gen_server). %% gen_server callbacks -export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]). -export([start/0, start_link/0, get_client_identity/2, verify_redirection_uri/3, authenticate_user/2, authenticate_client/2, verify_resowner_scope/3, associate_access_code/3, associate_access_token/3, associate_refresh_token/3, check_token/4, check_token/2, process/2, opt_type/1]). -include("jlib.hrl"). -include("ejabberd.hrl"). -include("logger.hrl"). -include("ejabberd_http.hrl"). -include("ejabberd_web_admin.hrl"). -record(oauth_token, { token = {<<"">>, <<"">>} :: {binary(), binary()}, us = {<<"">>, <<"">>} :: {binary(), binary()}, scope = [] :: [binary()], expire :: integer() }). -define(EXPIRE, 3600). start() -> init_db(mnesia, ?MYNAME), Expire = expire(), application:set_env(oauth2, backend, ejabberd_oauth), application:set_env(oauth2, expiry_time, Expire), application:start(oauth2), ChildSpec = {?MODULE, {?MODULE, start_link, []}, temporary, 1000, worker, [?MODULE]}, supervisor:start_child(ejabberd_sup, ChildSpec), ok. start_link() -> gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). init([]) -> erlang:send_after(expire() * 1000, self(), clean), {ok, ok}. handle_call(_Request, _From, State) -> {reply, bad_request, State}. handle_cast(_Msg, State) -> {noreply, State}. handle_info(clean, State) -> {MegaSecs, Secs, MiniSecs} = os:timestamp(), TS = 1000000 * MegaSecs + Secs, F = fun() -> Ts = mnesia:select( oauth_token, [{#oauth_token{expire = '$1', _ = '_'}, [{'<', '$1', TS}], ['$_']}]), lists:foreach(fun mnesia:delete_object/1, Ts) end, mnesia:async_dirty(F), erlang:send_after(trunc(expire() * 1000 * (1 + MiniSecs / 1000000)), self(), clean), {noreply, State}; handle_info(_Info, State) -> {noreply, State}. terminate(_Reason, _State) -> ok. code_change(_OldVsn, State, _Extra) -> {ok, State}. init_db(mnesia, _Host) -> mnesia:create_table(oauth_token, [{disc_copies, [node()]}, {attributes, record_info(fields, oauth_token)}]), mnesia:add_table_copy(oauth_token, node(), disc_copies); init_db(_, _) -> ok. get_client_identity(Client, Ctx) -> {ok, {Ctx, {client, Client}}}. verify_redirection_uri(_, _, Ctx) -> {ok, Ctx}. authenticate_user({User, Server}, {password, Password} = Ctx) -> case ejabberd_auth:check_password(User, Server, Password) of true -> {ok, {Ctx, {user, User, Server}}}; false -> {error, badpass} end. authenticate_client(Client, Ctx) -> {ok, {Ctx, {client, Client}}}. verify_resowner_scope({user, User, Server}, Scope, Ctx) -> Cmds = ejabberd_commands:get_commands(), Cmds1 = [sasl_auth | Cmds], RegisteredScope = [atom_to_binary(C, utf8) || C <- Cmds1], case oauth2_priv_set:is_subset(oauth2_priv_set:new(Scope), oauth2_priv_set:new(RegisteredScope)) of true -> {ok, {Ctx, Scope}}; false -> {error, badscope} end; verify_resowner_scope(_, _, _) -> {error, badscope}. associate_access_code(AccessCode, Context, AppContext) -> %put(?ACCESS_CODE_TABLE, AccessCode, Context), {ok, AppContext}. associate_access_token(AccessToken, Context, AppContext) -> {user, User, Server} = proplists:get_value(<<"resource_owner">>, Context, <<"">>), Scope = proplists:get_value(<<"scope">>, Context, []), Expire = proplists:get_value(<<"expiry_time">>, Context, 0), LUser = jlib:nodeprep(User), LServer = jlib:nameprep(Server), R = #oauth_token{ token = AccessToken, us = {LUser, LServer}, scope = Scope, expire = Expire }, mnesia:dirty_write(R), {ok, AppContext}. associate_refresh_token(RefreshToken, Context, AppContext) -> %put(?REFRESH_TOKEN_TABLE, RefreshToken, Context), {ok, AppContext}. check_token(User, Server, Scope, Token) -> LUser = jlib:nodeprep(User), LServer = jlib:nameprep(Server), case catch mnesia:dirty_read(oauth_token, Token) of [#oauth_token{us = {LUser, LServer}, scope = TokenScope, expire = Expire}] -> {MegaSecs, Secs, _} = os:timestamp(), TS = 1000000 * MegaSecs + Secs, oauth2_priv_set:is_member( Scope, oauth2_priv_set:new(TokenScope)) andalso Expire > TS; _ -> false end. check_token(Scope, Token) -> case catch mnesia:dirty_read(oauth_token, Token) of [#oauth_token{us = {LUser, LServer}, scope = TokenScope, expire = Expire}] -> {MegaSecs, Secs, _} = os:timestamp(), TS = 1000000 * MegaSecs + Secs, case oauth2_priv_set:is_member( Scope, oauth2_priv_set:new(TokenScope)) andalso Expire > TS of true -> {ok, LUser, LServer}; false -> false end; _ -> false end. expire() -> ejabberd_config:get_option( oauth_expire, fun(I) when is_integer(I) -> I end, ?EXPIRE). -define(DIV(Class, Els), ?XAE(<<"div">>, [{<<"class">>, Class}], Els)). -define(INPUTID(Type, Name, Value), ?XA(<<"input">>, [{<<"type">>, Type}, {<<"name">>, Name}, {<<"value">>, Value}, {<<"id">>, Name}])). -define(LABEL(ID, Els), ?XAE(<<"label">>, [{<<"for">>, ID}], Els)). process(_Handlers, #request{method = 'GET', q = Q, lang = Lang, path = [_, <<"authorization_token">>]}) -> ResponseType = proplists:get_value(<<"response_type">>, Q, <<"">>), ClientId = proplists:get_value(<<"client_id">>, Q, <<"">>), RedirectURI = proplists:get_value(<<"redirect_uri">>, Q, <<"">>), Scope = proplists:get_value(<<"scope">>, Q, <<"">>), State = proplists:get_value(<<"state">>, Q, <<"">>), Form = ?XAE(<<"form">>, [{<<"action">>, <<"authorization_token">>}, {<<"method">>, <<"post">>}], [?LABEL(<<"username">>, [?CT(<<"User">>), ?C(<<": ">>)]), ?INPUTID(<<"text">>, <<"username">>, <<"">>), ?BR, ?LABEL(<<"server">>, [?CT(<<"Server">>), ?C(<<": ">>)]), ?INPUTID(<<"text">>, <<"server">>, <<"">>), ?BR, ?LABEL(<<"password">>, [?CT(<<"Password">>), ?C(<<": ">>)]), ?INPUTID(<<"password">>, <<"password">>, <<"">>), ?INPUT(<<"hidden">>, <<"response_type">>, ResponseType), ?INPUT(<<"hidden">>, <<"client_id">>, ClientId), ?INPUT(<<"hidden">>, <<"redirect_uri">>, RedirectURI), ?INPUT(<<"hidden">>, <<"scope">>, Scope), ?INPUT(<<"hidden">>, <<"state">>, State), ?BR, ?INPUTT(<<"submit">>, <<"">>, <<"Accept">>) ]), Top = ?DIV(<<"section">>, [?DIV(<<"block">>, [?A(<<"https://www.ejabberd.im">>, [?XA(<<"img">>, [{<<"height">>, <<"32">>}, {<<"src">>, logo()}])] )])]), Middle = ?DIV(<<"white section">>, [?DIV(<<"block">>, [?XC(<<"h1">>, <<"Authorization request">>), ?XE(<<"p">>, [?C(<<"Application ">>), ?XC(<<"em">>, ClientId), ?C(<<" wants to access scope ">>), ?XC(<<"em">>, Scope)]), Form ])]), Bottom = ?DIV(<<"section">>, [?DIV(<<"block">>, [?XAC(<<"a">>, [{<<"href">>, <<"https://www.ejabberd.im">>}, {<<"title">>, <<"ejabberd XMPP server">>}], <<"ejabberd">>), ?C(" is maintained by "), ?XAC(<<"a">>, [{<<"href">>, <<"https://www.process-one.net">>}, {<<"title">>, <<"ProcessOne - Leader in Instant Messaging and Push Solutions">>}], <<"ProcessOne">>) ])]), Body = ?DIV(<<"container">>, [Top, Middle, Bottom]), ejabberd_web:make_xhtml(web_head(), [Body]); process(_Handlers, #request{method = 'POST', q = Q, lang = _Lang, path = [_, <<"authorization_token">>]}) -> ResponseType = proplists:get_value(<<"response_type">>, Q, <<"">>), ClientId = proplists:get_value(<<"client_id">>, Q, <<"">>), RedirectURI = proplists:get_value(<<"redirect_uri">>, Q, <<"">>), SScope = proplists:get_value(<<"scope">>, Q, <<"">>), Username = proplists:get_value(<<"username">>, Q, <<"">>), Server = proplists:get_value(<<"server">>, Q, <<"">>), Password = proplists:get_value(<<"password">>, Q, <<"">>), State = proplists:get_value(<<"state">>, Q, <<"">>), Scope = str:tokens(SScope, <<" ">>), case oauth2:authorize_password({Username, Server}, ClientId, RedirectURI, Scope, {password, Password}) of {ok, {_AppContext, Authorization}} -> {ok, {_AppContext2, Response}} = oauth2:issue_token(Authorization, none), {ok, AccessToken} = oauth2_response:access_token(Response), {ok, Type} = oauth2_response:token_type(Response), {ok, Expires} = oauth2_response:expires_in(Response), {ok, VerifiedScope} = oauth2_response:scope(Response), %oauth2_wrq:redirected_access_token_response(ReqData, % RedirectURI, % AccessToken, % Type, % Expires, % VerifiedScope, % State, % Context); {302, [{<<"Location">>, <>))/binary, "&state=", State/binary>> }], ejabberd_web:make_xhtml([?XC(<<"h1">>, <<"302 Found">>)])}; {error, Error} when is_atom(Error) -> %oauth2_wrq:redirected_error_response( % ReqData, RedirectURI, Error, State, Context) {302, [{<<"Location">>, <>, <<"302 Found">>)])} end; process(_Handlers, _Request) -> ejabberd_web:error(not_found). web_head() -> [?XA(<<"meta">>, [{<<"http-equiv">>, <<"X-UA-Compatible">>}, {<<"content">>, <<"IE=edge">>}]), ?XA(<<"meta">>, [{<<"name">>, <<"viewport">>}, {<<"content">>, <<"width=device-width, initial-scale=1">>}]), ?XC(<<"title">>, <<"Authorization request">>), ?XC(<<"style">>, css()) ]. css() -> <<" body { margin: 0; padding: 0; font-family: sans-serif; color: #fff; } h1 { font-size: 3em; color: #444; } p { line-height: 1.5em; color: #888; } a { color: #fff; } a:hover, a:active { text-decoration: underline; } em { display: inline-block; padding: 0 5px; background: #f4f4f4; border-radius: 5px; font-style: normal; font-weight: bold; color: #444; } form { color: #444; } label { display: block; font-weight: bold; } input[type=text], input[type=password] { margin-bottom: 1em; padding: 0.4em; max-width: 330px; width: 100%; border: 1px solid #c4c4c4; border-radius: 5px; outline: 0; font-size: 1.2em; } input[type=text]:focus, input[type=password]:focus, input[type=text]:active, input[type=password]:active { border-color: #41AFCA; } input[type=submit] { font-size: 1em; } .container { position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: #424A55; background-image: -webkit-linear-gradient(270deg, rgba(48,52,62,0) 24%, #30353e 100%); background-image: linear-gradient(-180deg, rgba(48,52,62,0) 24%, #30353e 100%); } .section { padding: 3em; } .white.section { background: #fff; border-bottom: 4px solid #41AFCA; } .white.section a { text-decoration: none; color: #41AFCA; } .white.section a:hover, .white.section a:active { text-decoration: underline; } .container > .section { background: #424A55; } .block { margin: 0 auto; max-width: 900px; width: 100%; } ">>. logo() -> 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">>. opt_type(oauth_expire) -> fun(I) when is_integer(I), I >= 0 -> I end; opt_type(_) -> [oauth_expire].