| 1 |
|
%%%------------------------------------------------------------------- |
| 2 |
|
%%% @author Rafal Slota |
| 3 |
|
%%% @copyright (C) 2017 Erlang Solutions Ltd. |
| 4 |
|
%%% This software is released under the Apache License, Version 2.0 |
| 5 |
|
%%% cited in 'LICENSE.txt'. |
| 6 |
|
%%% @end |
| 7 |
|
%%%------------------------------------------------------------------- |
| 8 |
|
%%% @doc |
| 9 |
|
%%% Node implementation that proxies all published items to `push_notification' hook. |
| 10 |
|
%%% @end |
| 11 |
|
%%%------------------------------------------------------------------- |
| 12 |
|
-module(node_push). |
| 13 |
|
-author('rafal.slota@erlang-solutions.com'). |
| 14 |
|
-behaviour(gen_pubsub_node). |
| 15 |
|
|
| 16 |
|
-include("mongoose.hrl"). |
| 17 |
|
-include("jlib.hrl"). |
| 18 |
|
-include("pubsub.hrl"). |
| 19 |
|
|
| 20 |
|
-export([based_on/0, init/3, terminate/2, options/0, features/0, |
| 21 |
|
publish_item/9, node_to_path/1, should_delete_when_owner_removed/0, |
| 22 |
|
check_publish_options/2]). |
| 23 |
|
|
| 24 |
|
-ignore_xref([check_publish_options/2]). |
| 25 |
|
|
| 26 |
:-( |
based_on() -> node_flat. |
| 27 |
|
|
| 28 |
|
init(Host, ServerHost, Opts) -> |
| 29 |
:-( |
node_flat:init(Host, ServerHost, Opts), |
| 30 |
:-( |
ok. |
| 31 |
|
|
| 32 |
|
terminate(Host, ServerHost) -> |
| 33 |
:-( |
node_flat:terminate(Host, ServerHost), |
| 34 |
:-( |
ok. |
| 35 |
|
|
| 36 |
|
options() -> |
| 37 |
:-( |
[{deliver_payloads, true}, |
| 38 |
|
{notify_config, false}, |
| 39 |
|
{notify_delete, false}, |
| 40 |
|
{notify_retract, false}, |
| 41 |
|
{purge_offline, false}, |
| 42 |
|
{persist_items, false}, |
| 43 |
|
{max_items, 1}, |
| 44 |
|
{subscribe, true}, |
| 45 |
|
{access_model, whitelist}, |
| 46 |
|
{roster_groups_allowed, []}, |
| 47 |
|
{publish_model, open}, |
| 48 |
|
{notification_type, headline}, |
| 49 |
|
{max_payload_size, ?MAX_PAYLOAD_SIZE}, |
| 50 |
|
{send_last_published_item, on_sub_and_presence}, |
| 51 |
|
{deliver_notifications, true}, |
| 52 |
|
{presence_based_delivery, true}]. |
| 53 |
|
|
| 54 |
|
features() -> |
| 55 |
:-( |
[ |
| 56 |
|
<<"create-nodes">>, |
| 57 |
|
<<"delete-nodes">>, |
| 58 |
|
<<"modify-affiliations">>, |
| 59 |
|
<<"publish">>, |
| 60 |
|
<<"publish-options">>, |
| 61 |
|
<<"publish-only-affiliation">>, |
| 62 |
|
<<"purge-nodes">>, |
| 63 |
|
<<"retrieve-affiliations">> |
| 64 |
|
]. |
| 65 |
|
|
| 66 |
|
publish_item(ServerHost, Nidx, Publisher, Model, _MaxItems, _ItemId, _ItemPublisher, Payload, |
| 67 |
|
PublishOptions) -> |
| 68 |
:-( |
{ok, Affiliation} = mod_pubsub_db_backend:get_affiliation(Nidx, jid:to_lower(Publisher)), |
| 69 |
:-( |
ElPayload = [El || #xmlel{} = El <- Payload], |
| 70 |
|
|
| 71 |
:-( |
case is_allowed_to_publish(Model, Affiliation) of |
| 72 |
|
true -> |
| 73 |
:-( |
do_publish_item(ServerHost, PublishOptions, ElPayload); |
| 74 |
|
false -> |
| 75 |
:-( |
{error, mongoose_xmpp_errors:forbidden()} |
| 76 |
|
end. |
| 77 |
|
|
| 78 |
|
-spec check_publish_options(#{binary() => [binary()]} | invalid_form, #{binary() => [binary()]}) -> |
| 79 |
|
boolean(). |
| 80 |
|
check_publish_options(#{<<"device_id">> := _, <<"service">> := _}, _) -> |
| 81 |
:-( |
false; |
| 82 |
|
check_publish_options(_, _) -> |
| 83 |
:-( |
true. |
| 84 |
|
|
| 85 |
|
do_publish_item(ServerHost, PublishOptions, |
| 86 |
|
[#xmlel{name = <<"notification">>} | _] = Notifications) -> |
| 87 |
:-( |
NotificationForms = [parse_form(El) || El <- Notifications], |
| 88 |
:-( |
OptionMap = parse_form(PublishOptions), |
| 89 |
:-( |
Result = mongoose_hooks:push_notifications(ServerHost, ok, NotificationForms, OptionMap), |
| 90 |
:-( |
handle_push_hook_result(Result); |
| 91 |
|
do_publish_item(_ServerHost, _PublishOptions, _Payload) -> |
| 92 |
:-( |
{error, mongoose_xmpp_errors:bad_request()}. |
| 93 |
|
|
| 94 |
|
handle_push_hook_result(ok) -> |
| 95 |
:-( |
{result, default}; |
| 96 |
|
handle_push_hook_result({error, device_not_registered}) -> |
| 97 |
:-( |
{error, mod_pubsub:extended_error(mongoose_xmpp_errors:not_acceptable_cancel(), <<"device-not-registered">>)}; |
| 98 |
|
handle_push_hook_result({error, _}) -> |
| 99 |
:-( |
{error, mod_pubsub:extended_error(mongoose_xmpp_errors:bad_request(), <<"faild-to-submit-push-notification">>)}. |
| 100 |
|
|
| 101 |
|
node_to_path(Node) -> |
| 102 |
:-( |
node_flat:node_to_path(Node). |
| 103 |
|
|
| 104 |
:-( |
should_delete_when_owner_removed() -> true. |
| 105 |
|
|
| 106 |
|
%%% |
| 107 |
|
%%% Internal |
| 108 |
|
%%% |
| 109 |
|
|
| 110 |
|
is_allowed_to_publish(PublishModel, Affiliation) -> |
| 111 |
|
(PublishModel == open) |
| 112 |
:-( |
or (PublishModel == publishers) |
| 113 |
|
and ((Affiliation == owner) |
| 114 |
|
or (Affiliation == publisher) |
| 115 |
|
or (Affiliation == publish_only)). |
| 116 |
|
|
| 117 |
|
-spec parse_form(undefined | exml:element()) -> invalid_form | #{binary() => binary()}. |
| 118 |
|
parse_form(undefined) -> |
| 119 |
:-( |
#{}; |
| 120 |
|
parse_form(Parent) -> |
| 121 |
:-( |
case mongoose_data_forms:find_and_parse_form(Parent) of |
| 122 |
|
#{type := <<"submit">>, kvs := KVs} -> |
| 123 |
:-( |
maps:filtermap(fun(_, [V]) -> {true, V}; |
| 124 |
:-( |
(_, _) -> false |
| 125 |
|
end, KVs); |
| 126 |
|
_ -> |
| 127 |
:-( |
invalid_form |
| 128 |
|
end. |