2017-07-20 20:22:50 +02:00
|
|
|
%%%----------------------------------------------------------------------
|
|
|
|
%%% File : mod_push.erl
|
|
|
|
%%% Author : Holger Weiss <holger@zedat.fu-berlin.de>
|
|
|
|
%%% Purpose : Push Notifications (XEP-0357)
|
|
|
|
%%% Created : 15 Jul 2017 by Holger Weiss <holger@zedat.fu-berlin.de>
|
|
|
|
%%%
|
|
|
|
%%%
|
|
|
|
%%% ejabberd, Copyright (C) 2017 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.,
|
|
|
|
%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
%%%
|
|
|
|
%%%----------------------------------------------------------------------
|
|
|
|
|
|
|
|
-module(mod_push).
|
|
|
|
-author('holger@zedat.fu-berlin.de').
|
|
|
|
-protocol({xep, 357, '0.2'}).
|
|
|
|
|
|
|
|
-behavior(gen_mod).
|
|
|
|
|
|
|
|
%% gen_mod callbacks.
|
|
|
|
-export([start/2, stop/1, reload/3, mod_opt_type/1, depends/2]).
|
|
|
|
|
|
|
|
%% ejabberd_hooks callbacks.
|
|
|
|
-export([disco_sm_features/5, c2s_session_pending/1, c2s_copy_session/2,
|
|
|
|
c2s_handle_cast/2, c2s_stanza/3, mam_message/6, offline_message/1,
|
|
|
|
remove_user/2]).
|
|
|
|
|
|
|
|
%% gen_iq_handler callback.
|
|
|
|
-export([process_iq/1]).
|
|
|
|
|
|
|
|
%% ejabberd command.
|
|
|
|
-export([get_commands_spec/0, delete_old_sessions/1]).
|
|
|
|
|
2017-07-21 01:07:36 +02:00
|
|
|
%% API (used by mod_push_keepalive).
|
|
|
|
-export([notify/1, notify/3, notify/5]).
|
|
|
|
|
2017-07-20 20:22:50 +02:00
|
|
|
-include("ejabberd.hrl").
|
|
|
|
-include("ejabberd_commands.hrl").
|
|
|
|
-include("logger.hrl").
|
|
|
|
-include("xmpp.hrl").
|
|
|
|
|
|
|
|
-define(PUSH_CACHE, push_cache).
|
|
|
|
|
|
|
|
-type c2s_state() :: ejabberd_c2s:state().
|
|
|
|
-type timestamp() :: erlang:timestamp().
|
|
|
|
-type push_session() :: {timestamp(), ljid(), binary(), xdata()}.
|
|
|
|
|
|
|
|
-callback init(binary(), gen_mod:opts())
|
|
|
|
-> any().
|
|
|
|
-callback store_session(binary(), binary(), timestamp(), jid(), binary(),
|
|
|
|
xdata())
|
|
|
|
-> {ok, push_session()} | error.
|
|
|
|
-callback lookup_session(binary(), binary(), jid(), binary())
|
|
|
|
-> {ok, push_session()} | error.
|
|
|
|
-callback lookup_session(binary(), binary(), timestamp())
|
|
|
|
-> {ok, push_session()} | error.
|
|
|
|
-callback lookup_sessions(binary(), binary(), jid())
|
|
|
|
-> {ok, [push_session()]} | error.
|
|
|
|
-callback lookup_sessions(binary(), binary())
|
|
|
|
-> {ok, [push_session()]} | error.
|
|
|
|
-callback lookup_sessions(binary())
|
|
|
|
-> {ok, [push_session()]} | error.
|
|
|
|
-callback delete_session(binary(), binary(), timestamp())
|
|
|
|
-> ok | error.
|
|
|
|
-callback delete_old_sessions(binary() | global, erlang:timestamp())
|
|
|
|
-> any().
|
|
|
|
-callback use_cache(binary())
|
|
|
|
-> boolean().
|
|
|
|
-callback cache_nodes(binary())
|
|
|
|
-> [node()].
|
|
|
|
|
|
|
|
-optional_callbacks([use_cache/1, cache_nodes/1]).
|
|
|
|
|
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
%% gen_mod callbacks.
|
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
-spec start(binary(), gen_mod:opts()) -> ok.
|
|
|
|
start(Host, Opts) ->
|
|
|
|
IQDisc = gen_mod:get_opt(iqdisc, Opts, gen_iq_handler:iqdisc(Host)),
|
|
|
|
Mod = gen_mod:db_mod(Host, Opts, ?MODULE),
|
|
|
|
Mod:init(Host, Opts),
|
|
|
|
init_cache(Mod, Host, Opts),
|
|
|
|
register_iq_handlers(Host, IQDisc),
|
|
|
|
register_hooks(Host),
|
|
|
|
ejabberd_commands:register_commands(get_commands_spec()).
|
|
|
|
|
|
|
|
-spec stop(binary()) -> ok.
|
|
|
|
stop(Host) ->
|
|
|
|
unregister_hooks(Host),
|
|
|
|
unregister_iq_handlers(Host),
|
|
|
|
ejabberd_commands:unregister_commands(get_commands_spec()).
|
|
|
|
|
|
|
|
-spec reload(binary(), gen_mod:opts(), gen_mod:opts()) -> ok.
|
|
|
|
reload(Host, NewOpts, OldOpts) ->
|
|
|
|
NewMod = gen_mod:db_mod(Host, NewOpts, ?MODULE),
|
|
|
|
OldMod = gen_mod:db_mod(Host, OldOpts, ?MODULE),
|
|
|
|
if NewMod /= OldMod ->
|
|
|
|
NewMod:init(Host, NewOpts);
|
|
|
|
true ->
|
|
|
|
ok
|
|
|
|
end,
|
|
|
|
case gen_mod:is_equal_opt(iqdisc, NewOpts, OldOpts,
|
|
|
|
gen_iq_handler:iqdisc(Host)) of
|
|
|
|
{false, IQDisc, _} ->
|
|
|
|
register_iq_handlers(Host, IQDisc);
|
|
|
|
true ->
|
|
|
|
ok
|
|
|
|
end.
|
|
|
|
|
|
|
|
-spec depends(binary(), gen_mod:opts()) -> [{module(), hard | soft}].
|
|
|
|
depends(_Host, _Opts) ->
|
|
|
|
[].
|
|
|
|
|
|
|
|
-spec mod_opt_type(atom()) -> fun((term()) -> term()) | [atom()].
|
|
|
|
mod_opt_type(db_type) ->
|
|
|
|
fun(T) -> ejabberd_config:v_db(?MODULE, T) end;
|
|
|
|
mod_opt_type(O) when O == cache_life_time; O == cache_size ->
|
|
|
|
fun(I) when is_integer(I), I > 0 -> I;
|
|
|
|
(infinity) -> infinity
|
|
|
|
end;
|
|
|
|
mod_opt_type(O) when O == use_cache; O == cache_missed ->
|
|
|
|
fun (B) when is_boolean(B) -> B end;
|
|
|
|
mod_opt_type(iqdisc) ->
|
|
|
|
fun gen_iq_handler:check_type/1;
|
|
|
|
mod_opt_type(_) ->
|
|
|
|
[db_type, cache_life_time, cache_size, use_cache, cache_missed, iqdisc].
|
|
|
|
|
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
%% ejabberd command callback.
|
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
-spec get_commands_spec() -> [ejabberd_commands()].
|
|
|
|
get_commands_spec() ->
|
|
|
|
[#ejabberd_commands{name = delete_old_push_sessions, tags = [purge],
|
|
|
|
desc = "Remove push sessions older than DAYS",
|
|
|
|
module = ?MODULE, function = delete_old_sessions,
|
|
|
|
args = [{days, integer}],
|
|
|
|
result = {res, rescode}}].
|
|
|
|
|
|
|
|
-spec delete_old_sessions(non_neg_integer()) -> ok | any().
|
|
|
|
delete_old_sessions(Days) ->
|
|
|
|
CurrentTime = p1_time_compat:system_time(micro_seconds),
|
|
|
|
Diff = Days * 24 * 60 * 60 * 1000000,
|
|
|
|
TimeStamp = misc:usec_to_now(CurrentTime - Diff),
|
|
|
|
DBTypes = lists:usort(
|
|
|
|
lists:map(
|
|
|
|
fun(Host) ->
|
|
|
|
case gen_mod:db_type(Host, ?MODULE) of
|
|
|
|
sql -> {sql, Host};
|
|
|
|
Other -> {Other, global}
|
|
|
|
end
|
|
|
|
end, ?MYHOSTS)),
|
|
|
|
Results = lists:map(
|
|
|
|
fun({DBType, Host}) ->
|
|
|
|
Mod = gen_mod:db_mod(DBType, ?MODULE),
|
|
|
|
Mod:delete_old_sessions(Host, TimeStamp)
|
|
|
|
end, DBTypes),
|
|
|
|
ets_cache:clear(?PUSH_CACHE, ejabberd_cluster:get_nodes()),
|
|
|
|
case lists:filter(fun(Res) -> Res /= ok end, Results) of
|
|
|
|
[] ->
|
|
|
|
?INFO_MSG("Deleted push sessions older than ~B days", [Days]),
|
|
|
|
ok;
|
|
|
|
[NotOk | _] ->
|
|
|
|
?ERROR_MSG("Error while deleting old push sessions: ~p", [NotOk]),
|
|
|
|
NotOk
|
|
|
|
end.
|
|
|
|
|
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
%% Register/unregister hooks.
|
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
-spec register_hooks(binary()) -> ok.
|
|
|
|
register_hooks(Host) ->
|
|
|
|
ejabberd_hooks:add(disco_sm_features, Host, ?MODULE,
|
|
|
|
disco_sm_features, 50),
|
|
|
|
ejabberd_hooks:add(c2s_session_pending, Host, ?MODULE,
|
|
|
|
c2s_session_pending, 50),
|
|
|
|
ejabberd_hooks:add(c2s_copy_session, Host, ?MODULE,
|
|
|
|
c2s_copy_session, 50),
|
|
|
|
ejabberd_hooks:add(c2s_handle_cast, Host, ?MODULE,
|
|
|
|
c2s_handle_cast, 50),
|
|
|
|
ejabberd_hooks:add(c2s_handle_send, Host, ?MODULE,
|
|
|
|
c2s_stanza, 50),
|
|
|
|
ejabberd_hooks:add(store_mam_message, Host, ?MODULE,
|
|
|
|
mam_message, 50),
|
|
|
|
ejabberd_hooks:add(offline_message_hook, Host, ?MODULE,
|
|
|
|
offline_message, 50),
|
|
|
|
ejabberd_hooks:add(remove_user, Host, ?MODULE,
|
|
|
|
remove_user, 50).
|
|
|
|
|
|
|
|
-spec unregister_hooks(binary()) -> ok.
|
|
|
|
unregister_hooks(Host) ->
|
|
|
|
ejabberd_hooks:delete(disco_sm_features, Host, ?MODULE,
|
|
|
|
disco_sm_features, 50),
|
|
|
|
ejabberd_hooks:delete(c2s_session_pending, Host, ?MODULE,
|
|
|
|
c2s_session_pending, 50),
|
|
|
|
ejabberd_hooks:delete(c2s_copy_session, Host, ?MODULE,
|
|
|
|
c2s_copy_session, 50),
|
|
|
|
ejabberd_hooks:delete(c2s_handle_cast, Host, ?MODULE,
|
|
|
|
c2s_handle_cast, 50),
|
|
|
|
ejabberd_hooks:delete(c2s_handle_send, Host, ?MODULE,
|
|
|
|
c2s_stanza, 50),
|
|
|
|
ejabberd_hooks:delete(store_mam_message, Host, ?MODULE,
|
|
|
|
mam_message, 50),
|
|
|
|
ejabberd_hooks:delete(offline_message_hook, Host, ?MODULE,
|
|
|
|
offline_message, 50),
|
|
|
|
ejabberd_hooks:delete(remove_user, Host, ?MODULE,
|
|
|
|
remove_user, 50).
|
|
|
|
|
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
%% Service discovery.
|
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
-spec disco_sm_features(empty | {result, [binary()]} | {error, stanza_error()},
|
|
|
|
jid(), jid(), binary(), binary())
|
|
|
|
-> {result, [binary()]} | {error, stanza_error()}.
|
|
|
|
disco_sm_features(empty, From, To, Node, Lang) ->
|
|
|
|
disco_sm_features({result, []}, From, To, Node, Lang);
|
|
|
|
disco_sm_features({result, OtherFeatures},
|
|
|
|
#jid{luser = U, lserver = S},
|
|
|
|
#jid{luser = U, lserver = S}, <<"">>, _Lang) ->
|
|
|
|
{result, [?NS_PUSH_0 | OtherFeatures]};
|
|
|
|
disco_sm_features(Acc, _From, _To, _Node, _Lang) ->
|
|
|
|
Acc.
|
|
|
|
|
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
%% IQ handlers.
|
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
-spec register_iq_handlers(binary(), gen_iq_handler:type()) -> ok.
|
|
|
|
register_iq_handlers(Host, IQDisc) ->
|
|
|
|
gen_iq_handler:add_iq_handler(ejabberd_sm, Host, ?NS_PUSH_0,
|
|
|
|
?MODULE, process_iq, IQDisc).
|
|
|
|
|
|
|
|
-spec unregister_iq_handlers(binary()) -> ok.
|
|
|
|
unregister_iq_handlers(Host) ->
|
|
|
|
gen_iq_handler:remove_iq_handler(ejabberd_sm, Host, ?NS_PUSH_0).
|
|
|
|
|
|
|
|
-spec process_iq(iq()) -> iq().
|
|
|
|
process_iq(#iq{type = get, lang = Lang} = IQ) ->
|
|
|
|
Txt = <<"Value 'get' of 'type' attribute is not allowed">>,
|
|
|
|
xmpp:make_error(IQ, xmpp:err_not_allowed(Txt, Lang));
|
|
|
|
process_iq(#iq{lang = Lang, sub_els = [#push_enable{node = <<>>}]} = IQ) ->
|
|
|
|
Txt = <<"Enabling push without 'node' attribute is not supported">>,
|
|
|
|
xmpp:make_error(IQ, xmpp:err_feature_not_implemented(Txt, Lang));
|
|
|
|
process_iq(#iq{from = #jid{lserver = LServer} = JID,
|
|
|
|
to = #jid{lserver = LServer},
|
|
|
|
sub_els = [#push_enable{jid = PushJID,
|
|
|
|
node = Node,
|
|
|
|
xdata = XData}]} = IQ) ->
|
|
|
|
case enable(JID, PushJID, Node, XData) of
|
|
|
|
ok ->
|
|
|
|
xmpp:make_iq_result(IQ);
|
|
|
|
error ->
|
|
|
|
xmpp:make_error(IQ, xmpp:err_internal_server_error())
|
|
|
|
end;
|
|
|
|
process_iq(#iq{from = #jid{lserver = LServer} = JID,
|
|
|
|
to = #jid{lserver = LServer},
|
|
|
|
sub_els = [#push_disable{jid = PushJID,
|
|
|
|
node = Node}]} = IQ) ->
|
|
|
|
case disable(JID, PushJID, Node) of
|
|
|
|
ok ->
|
|
|
|
xmpp:make_iq_result(IQ);
|
|
|
|
error ->
|
|
|
|
xmpp:make_error(IQ, xmpp:err_item_not_found())
|
|
|
|
end;
|
|
|
|
process_iq(IQ) ->
|
|
|
|
xmpp:make_error(IQ, xmpp:err_not_allowed()).
|
|
|
|
|
|
|
|
-spec enable(jid(), jid(), binary(), xdata()) -> ok | error.
|
|
|
|
enable(#jid{luser = LUser, lserver = LServer, lresource = LResource} = JID,
|
|
|
|
PushJID, Node, XData) ->
|
|
|
|
case ejabberd_sm:get_session_sid(LUser, LServer, LResource) of
|
|
|
|
{TS, PID} ->
|
|
|
|
case store_session(LUser, LServer, TS, PushJID, Node, XData) of
|
|
|
|
{ok, _} ->
|
|
|
|
?INFO_MSG("Enabling push notifications for ~s",
|
|
|
|
[jid:encode(JID)]),
|
|
|
|
ejabberd_c2s:cast(PID, push_enable);
|
|
|
|
error ->
|
|
|
|
?ERROR_MSG("Cannot enable push for ~s: database error",
|
|
|
|
[jid:encode(JID)]),
|
|
|
|
error
|
|
|
|
end;
|
|
|
|
none ->
|
|
|
|
?WARNING_MSG("Cannot enable push for ~s: session not found",
|
|
|
|
[jid:encode(JID)]),
|
|
|
|
error
|
|
|
|
end.
|
|
|
|
|
|
|
|
-spec disable(jid(), jid(), binary() | undefined) -> ok | error.
|
|
|
|
disable(#jid{luser = LUser, lserver = LServer, lresource = LResource} = JID,
|
|
|
|
PushJID, Node) ->
|
|
|
|
case ejabberd_sm:get_session_sid(LUser, LServer, LResource) of
|
|
|
|
{_TS, PID} ->
|
|
|
|
?INFO_MSG("Disabling push notifications for ~s",
|
|
|
|
[jid:encode(JID)]),
|
|
|
|
ejabberd_c2s:cast(PID, push_disable);
|
|
|
|
none ->
|
|
|
|
?WARNING_MSG("Session not found while disabling push for ~s",
|
|
|
|
[jid:encode(JID)])
|
|
|
|
end,
|
|
|
|
if Node /= undefined ->
|
|
|
|
delete_session(LUser, LServer, PushJID, Node);
|
|
|
|
true ->
|
|
|
|
delete_sessions(LUser, LServer, PushJID)
|
|
|
|
end.
|
|
|
|
|
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
%% Hook callbacks.
|
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
-spec c2s_stanza(c2s_state(), xmpp_element() | xmlel(), term()) -> c2s_state().
|
|
|
|
c2s_stanza(#{push_enabled := true, mgmt_state := pending} = State,
|
|
|
|
_Pkt, _SendResult) ->
|
|
|
|
notify(State),
|
|
|
|
State;
|
|
|
|
c2s_stanza(State, _Pkt, _SendResult) ->
|
|
|
|
State.
|
|
|
|
|
|
|
|
-spec mam_message(message() | drop, binary(), binary(), jid(),
|
|
|
|
chat | groupchat, recv | send) -> message().
|
|
|
|
mam_message(#message{meta = #{push_notified := true}} = Pkt,
|
|
|
|
_LUser, _LServer, _Peer, _Type, _Dir) ->
|
|
|
|
Pkt;
|
|
|
|
mam_message(#message{} = Pkt, LUser, LServer, _Peer, chat, _Dir) ->
|
|
|
|
case lookup_sessions(LUser, LServer) of
|
|
|
|
{ok, [_|_] = Clients} ->
|
|
|
|
case drop_online_sessions(LUser, LServer, Clients) of
|
|
|
|
[_|_] = Clients1 ->
|
|
|
|
?DEBUG("Notifying ~s@~s of MAM message", [LUser, LServer]),
|
|
|
|
notify(LUser, LServer, Clients1);
|
|
|
|
[] ->
|
|
|
|
ok
|
|
|
|
end;
|
|
|
|
_ ->
|
|
|
|
ok
|
|
|
|
end,
|
|
|
|
xmpp:put_meta(Pkt, push_notified, true);
|
|
|
|
mam_message(Pkt, _LUser, _LServer, _Peer, _Type, _Dir) ->
|
|
|
|
Pkt.
|
|
|
|
|
|
|
|
-spec offline_message({any(), message()}) -> {any(), message()}.
|
|
|
|
offline_message({_Action, #message{meta = #{push_notified := true}}} = Acc) ->
|
|
|
|
Acc;
|
|
|
|
offline_message({Action, #message{to = #jid{luser = LUser,
|
|
|
|
lserver = LServer}} = Pkt}) ->
|
|
|
|
case lookup_sessions(LUser, LServer) of
|
|
|
|
{ok, [_|_] = Clients} ->
|
|
|
|
?DEBUG("Notifying ~s@~s of offline message", [LUser, LServer]),
|
|
|
|
notify(LUser, LServer, Clients);
|
|
|
|
_ ->
|
|
|
|
ok
|
|
|
|
end,
|
|
|
|
{Action, xmpp:put_meta(Pkt, push_notified, true)}.
|
|
|
|
|
|
|
|
-spec c2s_session_pending(c2s_state()) -> c2s_state().
|
|
|
|
c2s_session_pending(#{push_enabled := true, mgmt_queue := Queue} = State) ->
|
|
|
|
case p1_queue:len(Queue) of
|
|
|
|
Len when Len > 0 ->
|
|
|
|
?DEBUG("Notifying client of unacknowledged messages", []),
|
|
|
|
notify(State),
|
|
|
|
State;
|
|
|
|
0 ->
|
|
|
|
State
|
|
|
|
end;
|
|
|
|
c2s_session_pending(State) ->
|
|
|
|
State.
|
|
|
|
|
|
|
|
-spec c2s_copy_session(c2s_state(), c2s_state()) -> c2s_state().
|
|
|
|
c2s_copy_session(State, #{push_enabled := true}) ->
|
|
|
|
State#{push_enabled => true};
|
|
|
|
c2s_copy_session(State, _) ->
|
|
|
|
State.
|
|
|
|
|
|
|
|
-spec c2s_handle_cast(c2s_state(), any()) -> c2s_state() | {stop, c2s_state()}.
|
|
|
|
c2s_handle_cast(State, push_enable) ->
|
|
|
|
{stop, State#{push_enabled => true}};
|
|
|
|
c2s_handle_cast(State, push_disable) ->
|
|
|
|
{stop, maps:remove(push_enabled, State)};
|
|
|
|
c2s_handle_cast(State, _Msg) ->
|
|
|
|
State.
|
|
|
|
|
|
|
|
-spec remove_user(binary(), binary()) -> ok | error.
|
|
|
|
remove_user(LUser, LServer) ->
|
|
|
|
?INFO_MSG("Removing any push sessions of ~s@~s", [LUser, LServer]),
|
|
|
|
Mod = gen_mod:db_mod(LServer, ?MODULE),
|
|
|
|
LookupFun = fun() -> Mod:lookup_sessions(LUser, LServer) end,
|
|
|
|
delete_sessions(LUser, LServer, LookupFun, Mod).
|
|
|
|
|
|
|
|
%%--------------------------------------------------------------------
|
2017-07-21 01:07:36 +02:00
|
|
|
%% Generate push notifications.
|
2017-07-20 20:22:50 +02:00
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
-spec notify(c2s_state()) -> ok.
|
|
|
|
notify(#{jid := #jid{luser = LUser, lserver = LServer}, sid := {TS, _}}) ->
|
|
|
|
case lookup_session(LUser, LServer, TS) of
|
|
|
|
{ok, Client} ->
|
|
|
|
notify(LUser, LServer, [Client]);
|
|
|
|
error ->
|
|
|
|
ok
|
|
|
|
end.
|
|
|
|
|
|
|
|
-spec notify(binary(), binary(), [push_session()]) -> ok.
|
|
|
|
notify(LUser, LServer, Clients) ->
|
|
|
|
lists:foreach(
|
|
|
|
fun({TS, PushLJID, Node, XData}) ->
|
|
|
|
HandleResponse = fun(#iq{type = result}) ->
|
|
|
|
ok;
|
|
|
|
(#iq{type = error}) ->
|
|
|
|
delete_session(LUser, LServer, TS);
|
|
|
|
(timeout) ->
|
|
|
|
ok % Hmm.
|
|
|
|
end,
|
|
|
|
notify(LServer, PushLJID, Node, XData, HandleResponse)
|
|
|
|
end, Clients).
|
|
|
|
|
|
|
|
-spec notify(binary(), ljid(), binary(), xdata(),
|
|
|
|
fun((iq() | timeout) -> any())) -> ok.
|
|
|
|
notify(LServer, PushLJID, Node, XData, HandleResponse) ->
|
|
|
|
From = jid:make(LServer),
|
|
|
|
Item = #ps_item{xml_els = [xmpp:encode(#push_notification{})]},
|
|
|
|
PubSub = #pubsub{publish = #ps_publish{node = Node, items = [Item]},
|
|
|
|
publish_options = XData},
|
|
|
|
IQ = #iq{type = set,
|
|
|
|
from = From,
|
|
|
|
to = jid:make(PushLJID),
|
|
|
|
id = randoms:get_string(),
|
|
|
|
sub_els = [PubSub]},
|
|
|
|
ejabberd_local:route_iq(IQ, HandleResponse),
|
|
|
|
ok.
|
|
|
|
|
2017-07-21 01:07:36 +02:00
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
%% Internal functions.
|
|
|
|
%%--------------------------------------------------------------------
|
2017-07-20 20:22:50 +02:00
|
|
|
-spec store_session(binary(), binary(), timestamp(), jid(), binary(), xdata())
|
|
|
|
-> {ok, push_session()} | error.
|
|
|
|
store_session(LUser, LServer, TS, PushJID, Node, XData) ->
|
|
|
|
Mod = gen_mod:db_mod(LServer, ?MODULE),
|
|
|
|
delete_session(LUser, LServer, PushJID, Node),
|
|
|
|
case use_cache(Mod, LServer) of
|
|
|
|
true ->
|
|
|
|
ets_cache:delete(?PUSH_CACHE, {LUser, LServer},
|
|
|
|
cache_nodes(Mod, LServer)),
|
|
|
|
ets_cache:update(
|
|
|
|
?PUSH_CACHE,
|
|
|
|
{LUser, LServer, TS}, {ok, {TS, PushJID, Node, XData}},
|
|
|
|
fun() ->
|
|
|
|
Mod:store_session(LUser, LServer, TS, PushJID, Node,
|
|
|
|
XData)
|
|
|
|
end, cache_nodes(Mod, LServer));
|
|
|
|
false ->
|
|
|
|
Mod:store_session(LUser, LServer, TS, PushJID, Node, XData)
|
|
|
|
end.
|
|
|
|
|
|
|
|
-spec lookup_session(binary(), binary(), timestamp())
|
|
|
|
-> {ok, push_session()} | error.
|
|
|
|
lookup_session(LUser, LServer, TS) ->
|
|
|
|
Mod = gen_mod:db_mod(LServer, ?MODULE),
|
|
|
|
case use_cache(Mod, LServer) of
|
|
|
|
true ->
|
|
|
|
ets_cache:lookup(
|
|
|
|
?PUSH_CACHE, {LUser, LServer, TS},
|
|
|
|
fun() -> Mod:lookup_session(LUser, LServer, TS) end);
|
|
|
|
false ->
|
|
|
|
Mod:lookup_session(LUser, LServer, TS)
|
|
|
|
end.
|
|
|
|
|
|
|
|
-spec lookup_sessions(binary(), binary()) -> {ok, [push_session()]} | error.
|
|
|
|
lookup_sessions(LUser, LServer) ->
|
|
|
|
Mod = gen_mod:db_mod(LServer, ?MODULE),
|
|
|
|
case use_cache(Mod, LServer) of
|
|
|
|
true ->
|
|
|
|
ets_cache:lookup(
|
|
|
|
?PUSH_CACHE, {LUser, LServer},
|
|
|
|
fun() -> Mod:lookup_sessions(LUser, LServer) end);
|
|
|
|
false ->
|
|
|
|
Mod:lookup_sessions(LUser, LServer)
|
|
|
|
end.
|
|
|
|
|
|
|
|
-spec delete_session(binary(), binary(), timestamp()) -> ok | error.
|
|
|
|
delete_session(LUser, LServer, TS) ->
|
|
|
|
Mod = gen_mod:db_mod(LServer, ?MODULE),
|
|
|
|
ok = Mod:delete_session(LUser, LServer, TS),
|
|
|
|
case use_cache(Mod, LServer) of
|
|
|
|
true ->
|
|
|
|
ets_cache:delete(?PUSH_CACHE, {LUser, LServer},
|
|
|
|
cache_nodes(Mod, LServer)),
|
|
|
|
ets_cache:delete(?PUSH_CACHE, {LUser, LServer, TS},
|
|
|
|
cache_nodes(Mod, LServer));
|
|
|
|
false ->
|
|
|
|
ok
|
|
|
|
end.
|
|
|
|
|
|
|
|
-spec delete_session(binary(), binary(), jid(), binary()) -> ok | error.
|
|
|
|
delete_session(LUser, LServer, PushJID, Node) ->
|
|
|
|
Mod = gen_mod:db_mod(LServer, ?MODULE),
|
|
|
|
case Mod:lookup_session(LUser, LServer, PushJID, Node) of
|
|
|
|
{ok, {TS, _, _, _}} ->
|
|
|
|
delete_session(LUser, LServer, TS);
|
|
|
|
error ->
|
|
|
|
error
|
|
|
|
end.
|
|
|
|
|
|
|
|
-spec delete_sessions(binary(), binary(), jid()) -> ok | error.
|
|
|
|
delete_sessions(LUser, LServer, PushJID) ->
|
|
|
|
Mod = gen_mod:db_mod(LServer, ?MODULE),
|
|
|
|
LookupFun = fun() -> Mod:lookup_sessions(LUser, LServer, PushJID) end,
|
|
|
|
delete_sessions(LUser, LServer, LookupFun, Mod).
|
|
|
|
|
|
|
|
-spec delete_sessions(binary(), binary(), fun(() -> ok | error), module())
|
|
|
|
-> ok | error.
|
|
|
|
delete_sessions(LUser, LServer, LookupFun, Mod) ->
|
|
|
|
case LookupFun() of
|
|
|
|
{ok, Clients} ->
|
|
|
|
case use_cache(Mod, LServer) of
|
|
|
|
true ->
|
|
|
|
ets_cache:delete(?PUSH_CACHE, {LUser, LServer},
|
|
|
|
cache_nodes(Mod, LServer));
|
|
|
|
false ->
|
|
|
|
ok
|
|
|
|
end,
|
|
|
|
lists:foreach(
|
|
|
|
fun({TS, _, _, _}) ->
|
|
|
|
ok = Mod:delete_session(LUser, LServer, TS),
|
|
|
|
case use_cache(Mod, LServer) of
|
|
|
|
true ->
|
|
|
|
ets_cache:delete(?PUSH_CACHE,
|
|
|
|
{LUser, LServer, TS},
|
|
|
|
cache_nodes(Mod, LServer));
|
|
|
|
false ->
|
|
|
|
ok
|
|
|
|
end
|
|
|
|
end, Clients);
|
|
|
|
error ->
|
|
|
|
error
|
|
|
|
end.
|
|
|
|
|
|
|
|
-spec drop_online_sessions(binary(), binary(), [push_session()])
|
|
|
|
-> [push_session()].
|
|
|
|
drop_online_sessions(LUser, LServer, Clients) ->
|
|
|
|
SessIDs = ejabberd_sm:get_session_sids(LUser, LServer),
|
|
|
|
[Client || {TS, _, _, _} = Client <- Clients,
|
2017-08-18 16:44:32 +02:00
|
|
|
lists:keyfind(TS, 1, SessIDs) == false].
|
2017-07-20 20:22:50 +02:00
|
|
|
|
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
%% Caching.
|
|
|
|
%%--------------------------------------------------------------------
|
|
|
|
-spec init_cache(module(), binary(), gen_mod:opts()) -> ok.
|
|
|
|
init_cache(Mod, Host, Opts) ->
|
|
|
|
case use_cache(Mod, Host) of
|
|
|
|
true ->
|
|
|
|
CacheOpts = cache_opts(Host, Opts),
|
|
|
|
ets_cache:new(?PUSH_CACHE, CacheOpts);
|
|
|
|
false ->
|
|
|
|
ets_cache:delete(?PUSH_CACHE)
|
|
|
|
end.
|
|
|
|
|
|
|
|
-spec cache_opts(binary(), gen_mod:opts()) -> [proplists:property()].
|
|
|
|
cache_opts(Host, Opts) ->
|
|
|
|
MaxSize = gen_mod:get_opt(
|
|
|
|
cache_size, Opts,
|
|
|
|
ejabberd_config:cache_size(Host)),
|
|
|
|
CacheMissed = gen_mod:get_opt(
|
|
|
|
cache_missed, Opts,
|
|
|
|
ejabberd_config:cache_missed(Host)),
|
|
|
|
LifeTime = case gen_mod:get_opt(
|
|
|
|
cache_life_time, Opts,
|
|
|
|
ejabberd_config:cache_life_time(Host)) of
|
|
|
|
infinity -> infinity;
|
|
|
|
I -> timer:seconds(I)
|
|
|
|
end,
|
|
|
|
[{max_size, MaxSize}, {cache_missed, CacheMissed}, {life_time, LifeTime}].
|
|
|
|
|
|
|
|
-spec use_cache(module(), binary()) -> boolean().
|
|
|
|
use_cache(Mod, Host) ->
|
|
|
|
case erlang:function_exported(Mod, use_cache, 1) of
|
|
|
|
true -> Mod:use_cache(Host);
|
|
|
|
false ->
|
|
|
|
gen_mod:get_module_opt(
|
|
|
|
Host, ?MODULE, use_cache,
|
|
|
|
ejabberd_config:use_cache(Host))
|
|
|
|
end.
|
|
|
|
|
|
|
|
-spec cache_nodes(module(), binary()) -> [node()].
|
|
|
|
cache_nodes(Mod, Host) ->
|
|
|
|
case erlang:function_exported(Mod, cache_nodes, 1) of
|
|
|
|
true -> Mod:cache_nodes(Host);
|
|
|
|
false -> ejabberd_cluster:get_nodes()
|
|
|
|
end.
|