mirror of
https://github.com/processone/ejabberd.git
synced 2024-10-31 15:21:38 +01:00
642b18edcb
According to XEP-0012 Last Activity, the server must return iq errors with forbidden instead of not-allowed. Fixes problem 1 of EJAB-1158.
267 lines
8.4 KiB
Erlang
267 lines
8.4 KiB
Erlang
%%%----------------------------------------------------------------------
|
|
%%% File : mod_last.erl
|
|
%%% Author : Alexey Shchepin <alexey@process-one.net>
|
|
%%% Purpose : jabber:iq:last support (XEP-0012)
|
|
%%% Created : 24 Oct 2003 by Alexey Shchepin <alexey@process-one.net>
|
|
%%%
|
|
%%%
|
|
%%% ejabberd, Copyright (C) 2002-2010 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
|
|
%%%
|
|
%%%----------------------------------------------------------------------
|
|
|
|
%%% Database schema (version / storage / table)
|
|
%%%
|
|
%%% 2.1.x / mnesia / last_activity
|
|
%%% us = {Username::string(), Host::string()}
|
|
%%% timestamp = now()
|
|
%%% status = string()
|
|
%%%
|
|
%%% 2.1.x / odbc / last
|
|
%%% username = varchar250
|
|
%%% seconds = text
|
|
%%% state = text
|
|
%%%
|
|
%%% 3.0.0-prealpha / mnesia / last_activity
|
|
%%% us = {Username::binary(), Host::binary()}
|
|
%%% timestamp = now()
|
|
%%% status = binary()
|
|
%%%
|
|
%%% 3.0.0-prealpha / odbc / last
|
|
%%% Same as 2.1.x
|
|
%%%
|
|
%%% 3.0.0-alpha / mnesia / last_activity
|
|
%%% user_host = {Username::binary(), Host::binary()}
|
|
%%% timestamp = now()
|
|
%%% status = binary()
|
|
%%%
|
|
%%% 3.0.0-alpha / odbc / last_activity
|
|
%%% user = varchar150
|
|
%%% host = varchar150
|
|
%%% timestamp = bigint
|
|
%%% status = text
|
|
|
|
-module(mod_last).
|
|
-author('alexey@process-one.net').
|
|
|
|
-behaviour(gen_mod).
|
|
|
|
-export([start/2,
|
|
stop/1,
|
|
process_local_iq/3,
|
|
process_sm_iq/3,
|
|
on_presence_update/4,
|
|
store_last_info/4,
|
|
get_last_info/2,
|
|
remove_user/2]).
|
|
|
|
-include_lib("exmpp/include/exmpp.hrl").
|
|
|
|
-include("ejabberd.hrl").
|
|
-include("mod_privacy.hrl").
|
|
|
|
-record(last_activity, {user_host, timestamp, status}).
|
|
|
|
|
|
start(Host, Opts) ->
|
|
HostB = list_to_binary(Host),
|
|
IQDisc = gen_mod:get_opt(iqdisc, Opts, one_queue),
|
|
Backend = gen_mod:get_opt(backend, Opts, mnesia),
|
|
gen_storage:create_table(Backend, HostB, last_activity,
|
|
[{disc_copies, [node()]},
|
|
{odbc_host, Host},
|
|
{attributes, record_info(fields, last_activity)},
|
|
{types, [{user_host, {text, text}},
|
|
{timestamp, bigint}]}]),
|
|
update_table(Host, Backend),
|
|
gen_iq_handler:add_iq_handler(ejabberd_local, HostB, ?NS_LAST_ACTIVITY,
|
|
?MODULE, process_local_iq, IQDisc),
|
|
gen_iq_handler:add_iq_handler(ejabberd_sm, HostB, ?NS_LAST_ACTIVITY,
|
|
?MODULE, process_sm_iq, IQDisc),
|
|
ejabberd_hooks:add(remove_user, HostB,
|
|
?MODULE, remove_user, 50),
|
|
ejabberd_hooks:add(unset_presence_hook, HostB,
|
|
?MODULE, on_presence_update, 50).
|
|
|
|
stop(Host) ->
|
|
HostB = list_to_binary(Host),
|
|
ejabberd_hooks:delete(remove_user, HostB,
|
|
?MODULE, remove_user, 50),
|
|
ejabberd_hooks:delete(unset_presence_hook, HostB,
|
|
?MODULE, on_presence_update, 50),
|
|
gen_iq_handler:remove_iq_handler(ejabberd_local, HostB, ?NS_LAST_ACTIVITY),
|
|
gen_iq_handler:remove_iq_handler(ejabberd_sm, HostB, ?NS_LAST_ACTIVITY).
|
|
|
|
%%%
|
|
%%% Uptime of ejabberd node
|
|
%%%
|
|
|
|
process_local_iq(_From, _To, #iq{type = get} = IQ_Rec) ->
|
|
Sec = get_node_uptime(),
|
|
Response = #xmlel{ns = ?NS_LAST_ACTIVITY, name = 'query', attrs =
|
|
[?XMLATTR('seconds', Sec)]},
|
|
exmpp_iq:result(IQ_Rec, Response);
|
|
process_local_iq(_From, _To, #iq{type = set} = IQ_Rec) ->
|
|
exmpp_iq:error(IQ_Rec, 'not-allowed').
|
|
|
|
%% @spec () -> integer()
|
|
%% @doc Get the uptime of the ejabberd node, expressed in seconds.
|
|
%% When ejabberd is starting, ejabberd_config:start/0 stores the datetime.
|
|
get_node_uptime() ->
|
|
case ejabberd_config:get_local_option(node_start) of
|
|
{_, _, _} = StartNow ->
|
|
now_to_seconds(now()) - now_to_seconds(StartNow);
|
|
_undefined ->
|
|
trunc(element(1, erlang:statistics(wall_clock))/1000)
|
|
end.
|
|
|
|
now_to_seconds({MegaSecs, Secs, _MicroSecs}) ->
|
|
MegaSecs * 1000000 + Secs.
|
|
|
|
|
|
%%%
|
|
%%% Serve queries about user last online
|
|
%%%
|
|
|
|
process_sm_iq(From, To, #iq{type = get} = IQ_Rec) ->
|
|
{Subscription, _Groups} =
|
|
ejabberd_hooks:run_fold(
|
|
roster_get_jid_info, exmpp_jid:prep_domain(To),
|
|
{none, []}, [exmpp_jid:prep_node(To), exmpp_jid:prep_domain(To), From]),
|
|
if
|
|
(Subscription == both) or (Subscription == from) ->
|
|
UserListRecord = ejabberd_hooks:run_fold(
|
|
privacy_get_user_list, exmpp_jid:prep_domain(To),
|
|
#userlist{},
|
|
[exmpp_jid:prep_node(To), exmpp_jid:prep_domain(To)]),
|
|
case ejabberd_hooks:run_fold(
|
|
privacy_check_packet, exmpp_jid:prep_domain(To),
|
|
allow,
|
|
[exmpp_jid:prep_node(To), exmpp_jid:prep_domain(To), UserListRecord,
|
|
{To, From,
|
|
exmpp_presence:available()},
|
|
out]) of
|
|
allow ->
|
|
get_last(IQ_Rec, exmpp_jid:prep_node(To), exmpp_jid:prep_domain(To));
|
|
deny ->
|
|
exmpp_iq:error(IQ_Rec, 'forbidden')
|
|
end;
|
|
true ->
|
|
exmpp_iq:error(IQ_Rec, 'forbidden')
|
|
end;
|
|
process_sm_iq(_From, _To, #iq{type = set} = IQ_Rec) ->
|
|
exmpp_iq:error(IQ_Rec, 'not-allowed').
|
|
|
|
%% TODO: This function could use get_last_info/2
|
|
get_last(IQ_Rec, LUser, LServer) ->
|
|
case catch gen_storage:dirty_read(LServer, last_activity, {LUser, LServer}) of
|
|
{'EXIT', _Reason} ->
|
|
exmpp_iq:error(IQ_Rec, 'internal-server-error');
|
|
[] ->
|
|
exmpp_iq:error(IQ_Rec, 'service-unavailable');
|
|
[#last_activity{timestamp = TimeStamp, status = Status}] ->
|
|
{MegaSecs, Secs, _MicroSecs} = now(),
|
|
TimeStamp2 = MegaSecs * 1000000 + Secs,
|
|
Sec = TimeStamp2 - TimeStamp,
|
|
Response = #xmlel{ns = ?NS_LAST_ACTIVITY, name = 'query',
|
|
attrs = [?XMLATTR('seconds', Sec)],
|
|
children = [#xmlcdata{cdata = Status}]},
|
|
exmpp_iq:result(IQ_Rec, Response)
|
|
end.
|
|
|
|
|
|
|
|
on_presence_update(User, Server, _Resource, Status) ->
|
|
{MegaSecs, Secs, _MicroSecs} = now(),
|
|
TimeStamp = MegaSecs * 1000000 + Secs,
|
|
store_last_info(User, Server, TimeStamp, Status).
|
|
|
|
store_last_info(User, Server, TimeStamp, Status)
|
|
when is_binary(User), is_binary(Server) ->
|
|
try
|
|
US = {User, Server},
|
|
F = fun() ->
|
|
gen_storage:write(Server,
|
|
#last_activity{user_host = US,
|
|
timestamp = TimeStamp,
|
|
status = Status})
|
|
end,
|
|
gen_storage:transaction(Server, last_activity, F)
|
|
catch
|
|
_ ->
|
|
ok
|
|
end.
|
|
|
|
%% @spec (LUser::string(), LServer::string()) ->
|
|
%% {ok, Timestamp::integer(), Status::string()} | not_found
|
|
get_last_info(LUser, LServer) when is_list(LUser), is_list(LServer) ->
|
|
get_last_info(list_to_binary(LUser), list_to_binary(LServer));
|
|
get_last_info(LUser, LServer) when is_binary(LUser), is_binary(LServer) ->
|
|
case catch gen_storage:dirty_read(LServer, last_activity, {LUser, LServer}) of
|
|
{'EXIT', _Reason} ->
|
|
not_found;
|
|
[] ->
|
|
not_found;
|
|
[#last_activity{timestamp = TimeStamp, status = Status}] ->
|
|
{ok, TimeStamp, Status}
|
|
end.
|
|
|
|
remove_user(User, Server) when is_binary(User), is_binary(Server) ->
|
|
try
|
|
LUser = exmpp_stringprep:nodeprep(User),
|
|
LServer = exmpp_stringprep:nameprep(Server),
|
|
US = {LUser, LServer},
|
|
F = fun() ->
|
|
gen_storage:delete(LServer, {last_activity, US})
|
|
end,
|
|
gen_storage:transaction(LServer, last_activity, F)
|
|
catch
|
|
_ ->
|
|
ok
|
|
end.
|
|
|
|
update_table(Host, mnesia) ->
|
|
gen_storage_migration:migrate_mnesia(
|
|
Host, last_activity,
|
|
[{last_activity, [us, timestamp, status],
|
|
fun({last_activity, {U, S}, Timestamp, Status}) ->
|
|
U1 = case U of
|
|
"" -> undefined;
|
|
V -> V
|
|
end,
|
|
#last_activity{user_host = {list_to_binary(U1),
|
|
list_to_binary(S)},
|
|
timestamp = Timestamp,
|
|
status = list_to_binary(Status)}
|
|
end}]);
|
|
update_table(Host, odbc) ->
|
|
gen_storage_migration:migrate_odbc(
|
|
Host, [last_activity],
|
|
[{"last", ["username", "seconds", "state"],
|
|
fun(_, Username, STimeStamp, Status) ->
|
|
case catch list_to_integer(STimeStamp) of
|
|
TimeStamp when is_integer(TimeStamp) ->
|
|
[#last_activity{user_host = {Username, Host},
|
|
timestamp = TimeStamp,
|
|
status = Status}];
|
|
_ ->
|
|
?WARNING_MSG("Omitting last_activity migration item"
|
|
" with timestamp=~p",
|
|
[STimeStamp])
|
|
end
|
|
end}]).
|