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xmpp.chapril.org-ejabberd/mod_pubsub_ng/pubsub_broadcast.erl

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%%% ====================================================================
%%% ``The contents of this file are subject to the Erlang Public License,
%%% Version 1.1, (the "License"); you may not use this file except in
%%% compliance with the License. You should have received a copy of the
%%% Erlang Public License along with this software. If not, it can be
%%% retrieved via the world wide web at http://www.erlang.org/.
%%%
%%% Software distributed under the License is distributed on an "AS IS"
%%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%%% the License for the specific language governing rights and limitations
%%% under the License.
%%%
%%% The Initial Developer of the Original Code is ProcessOne.
%%% Portions created by ProcessOne are Copyright 2006-2013, ProcessOne
%%% All Rights Reserved.''
%%% This software is copyright 2006-2013, ProcessOne.
%%%
%%% @copyright 2006-2013 ProcessOne
%%% @author Karim Gemayel <karim.gemayel@process-one.net>
%%% [http://www.process-one.net/]
%%% @version {@vsn}, {@date} {@time}
%%% @end
%%% ====================================================================
%%% @headerfile "pubsub_dev.hrl"
-module(pubsub_broadcast).
-author('karim.gemayel@process-one.net').
-compile(export_all).
-include("pubsub_dev.hrl").
-include("pubsub_api.hrl").
-import(pubsub_tools,
[
get_option/2,
get_option/3,
get_value/2,
get_value/3,
set_value/3,
%%
check_access_model/3,
check_access_model/7,
check_publish_model/3,
is_contact_subscribed_to_node_owners/3,
is_contact_in_allowed_roster_groups/2,
has_subscriptions/1,
get_resources/2,
get_resources_show/2,
rosters_groups_allowed_cache/2
]).
-spec(notify_subscriptions/5 ::
(
Host :: xmpp_jid:raw_jid_component_bare(),
Pubsub_Host :: exmpp_pubsub:host(),
NodeId :: exmpp_pubsub:nodeId(),
Notification_Type :: pubsub_options:notification_type(),
Entities_Subscriptions :: [Entity_Subscriptions :: {
Entity :: xmpp_jid:usr_entity(),
Subscriptions :: _%sub:subscriptions()
}])
-> 'ok'
).
notify_subscriptions(_Host, Pubsub_Host, NodeId, Notification_Type,
Entities_Subscriptions) ->
Pubsub_Component_Jid = jlib:make_jid(<<>>, Pubsub_Host, <<>>),
lists:foreach(fun
(_Entity = {{U,S,_R}, Subscriptions}) ->
lists:foreach(fun
({Subscription_State, SubId, Resource, _Subscription_Options}) ->
Recipient_Jid = jlib:make_jid(U,S,Resource),
ejabberd_router:route(_From = Pubsub_Component_Jid,
_To = Recipient_Jid,
_Stanza_Message = exmpp_pubsub:xmlel_message(
Notification_Type,
[exmpp_pubsub:xmlel_event([
exmpp_pubsub:xmlel_subscription('pubsub#event',
NodeId,
_Jid = pubsub_tools:jid_to_string(Recipient_Jid),
SubId,
Subscription_State
)
])]
)
)
end, Subscriptions)
end, Entities_Subscriptions).
%%
-spec(notify_subscription/6 ::
(
Host :: xmpp_jid:raw_jid_component_bare(),
NodeId :: exmpp_pubsub:nodeId(),
Pubsub_Component_Jid :: xmpp_jid:component_bare(),
Recipient :: xmpp_jid:entity_bare() | [xmpp_jid:entity_bare(),...],
Notification_Type :: pubsub_options:notification_type(),
Subscription :: {
Subscriber :: xmpp_jid:raw_jid_entity(),
Subscription_State :: exmpp_pubsub:subscription_state(),
SubId :: exmpp_pubsub:subId()
})
-> 'ok'
).
notify_subscription(_Host, NodeId, Pubsub_Component_Jid, Recipients,
Notification_Type, {Subscriber, Subscription_State, SubId})
when is_list(Recipients) ->
Stanza_Message = exmpp_pubsub:xmlel_message(Notification_Type,
[exmpp_pubsub:xmlel_event([
exmpp_pubsub:xmlel_subscription('pubsub#event',
NodeId, Subscriber, SubId, Subscription_State)
])
]),
lists:foreach(fun
(Recipient) ->
ejabberd_router:route(_From = Pubsub_Component_Jid,
_To = pubsub_tools:make_jid(Recipient), Stanza_Message)
end, Recipients);
%%
notify_subscription(_Host, NodeId, Pubsub_Component_Jid, Recipient,
Notification_Type, {Subscriber, Subscription_State, SubId}) ->
Stanza_Message = exmpp_pubsub:xmlel_message(Notification_Type,
[exmpp_pubsub:xmlel_event([
exmpp_pubsub:xmlel_subscription('pubsub#event',
NodeId, Subscriber, SubId, Subscription_State)
])
]),
ejabberd_router:route(_From = Pubsub_Component_Jid,
_To = Recipient, Stanza_Message).
%%
-spec(notify_delete/6 ::
(
Host :: xmpp_jid:raw_jid_component_bare(),
Pubsub_Host :: exmpp_pubsub:host(),
NodeId :: exmpp_pubsub:nodeId(),
Notification_Type :: pubsub_options:notification_type(),
RedirectURI :: undefined | binary(),
Recipients :: [Recipient::xmpp_jid:usr_bare(),...])
-> 'ok'
).
notify_delete(_Host, Pubsub_Host, NodeId, Notification_Type, RedirectURI,
Recipients) ->
Pubsub_Component_Jid = jlib:make_jid(<<>>, Pubsub_Host, <<>>),
Stanza_Message = exmpp_pubsub:xmlel_message(Notification_Type,
[exmpp_pubsub:xmlel_event([
exmpp_pubsub:xmlel_delete(NodeId, RedirectURI)])]
),
lists:foreach(fun
(Recipient) ->
ejabberd_router:route(_To = Pubsub_Component_Jid,
_From = pubsub_tools:make_jid(Recipient),
Stanza_Message
)
end, Recipients).
%%
-spec(notify_purge/5 ::
(
Host :: xmpp_jid:raw_jid_component_bare(),
Pubsub_Host :: exmpp_pubsub:host(),
NodeId :: exmpp_pubsub:nodeId(),
Notification_Type :: pubsub_options:notification_type(),
Recipients :: [Recipient::xmpp_jid:usr_bare(),...])
-> 'ok'
).
notify_purge(_Host, Pubsub_Host, NodeId, Notification_Type, Recipients) ->
Pubsub_Component_Jid = jlib:make_jid(<<>>, Pubsub_Host, <<>>),
Stanza_Message = exmpp_pubsub:xmlel_message(Notification_Type,
[exmpp_pubsub:xmlel_event([
exmpp_pubsub:xmlel_purge(NodeId)])]),
lists:foreach(fun
(Recipient) ->
ejabberd_router:route(_To = Pubsub_Component_Jid,
_From = pubsub_tools:make_jid(Recipient),
Stanza_Message
)
end, Recipients).
%%
-spec(notify_publish/8 ::
(
From :: xmpp_jid:component_bare(),
To :: xmpp_jid:entity(),
Notification_Type :: 'headline' | 'normal',
NodeId :: exmpp_pubsub:nodeId(),
ItemId :: exmpp_pubsub:itemId(),
Publisher :: undefined | xmpp_jid:raw_jid_entity(),
Payload :: exmpp_pubsub:payload(),
SubIds :: [SubId::exmpp_pubsub:subId(),...])
-> 'ok'
).
notify_publish(From, To, Notification_Type, NodeId, ItemId, Publisher, Payload,
SubIds) ->
ejabberd_router:route(From, To,
_Stanza_Message = exmpp_pubsub:xmlel_message(Notification_Type,
case SubIds of
[_SubId] ->
[exmpp_pubsub:xmlel_event([
exmpp_pubsub:xmlel_items('pubsub#event', NodeId,
[exmpp_pubsub:xmlel_item('pubsub#event', ItemId,
Publisher, Payload)
])
])
];
_SubIds ->
[exmpp_pubsub:xmlel_event([
exmpp_pubsub:xmlel_items('pubsub#event', NodeId,
[exmpp_pubsub:xmlel_item('pubsub#event', ItemId,
Publisher, Payload)
])
]),
exmpp_pubsub:xmlel_headers(
[exmpp_pubsub:xmlel_header(SubId) || SubId <- SubIds])
]
end)
).
-define(Xmlel(NS, Name, Attrs, Children),
(
#xmlel{
name = Name,
attrs = [{<<"xmlns">>, NS} | Attrs],
children = Children
}
)).
-define(CData(Data),
(
{xmlcdata, Data}
)).
-define(Stanza_Message(Type, Id, Children),
(
?Xmlel(?NS_JABBER_CLIENT, <<"message">>, [{<<"type">>, Type}, {<<"id">>, Id}],
Children)
)).
%%
-spec(stanza_notify_publish/5 ::
(
Notification_Type :: pubsub_options:notification_type(),
NodeId :: exmpp_pubsub:nodeId(),
ItemId :: exmpp_pubsub:itemId(),
Publisher :: undefined | xmpp_jid:usr_entity() | xmpp_jid:raw_jid_entity(),
Payload :: exmpp_pubsub:payload())
-> Stanza_Notify_Publish::xmlel()
).
stanza_notify_publish(Notification_Type, NodeId, ItemId, Publisher, Payload)
when is_tuple(Publisher) ->
stanza_notify_publish(Notification_Type, NodeId, ItemId,
pubsub_tools:jid_to_string(Publisher), Payload);
stanza_notify_publish(Notification_Type, NodeId, ItemId, Publisher, Payload) ->
?Stanza_Message(list_to_binary(atom_to_list(Notification_Type)), exmpp_pubsub:id(),[
?Xmlel(?NS_PUBSUB_EVENT, <<"event">>, [], [
?Xmlel(?NS_PUBSUB_EVENT, <<"items">>, [{<<"node">>, NodeId}], [
?Xmlel(?NS_PUBSUB_EVENT, <<"item">>,
case Publisher of
undefined ->
[{<<"id">>, ItemId}];
_ ->
[{<<"id">>, ItemId}, {<<"publisher">>, Publisher}]
end,
case Payload of
[] -> [];
_ -> [Payload]
end)
])
])
]).
%%
-spec(stanza_notify_retract/3 ::
(
Notification_Type :: pubsub_options:notification_type(),
NodeId :: exmpp_pubsub:nodeId(),
ItemId :: exmpp_pubsub:itemId())
-> Stanza_Notify_Retract::xmlel()
).
stanza_notify_retract(Notification_Type, NodeId, ItemId) ->
?Stanza_Message(list_to_binary(atom_to_list(Notification_Type)), exmpp_pubsub:id(),[
?Xmlel(?NS_PUBSUB_EVENT, <<"event">>, [], [
?Xmlel(?NS_PUBSUB_EVENT, <<"items">>, [{<<"node">>, NodeId}], [
?Xmlel(?NS_PUBSUB_EVENT, <<"retract">>, [{<<"id">>, ItemId}], [])
])
])
]).
%%
-spec(notify_retract/6 ::
(
From :: xmpp_jid:component_bare(),
To :: xmpp_jid:entity(),
Notification_Type :: 'headline' | 'normal',
NodeId :: exmpp_pubsub:nodeId(),
ItemId :: exmpp_pubsub:itemId(),
SubIds :: [SubId::exmpp_pubsub:subId(),...])
-> none
).
notify_retract(From, To, Notification_Type, NodeId, ItemId, SubIds) ->
ejabberd_router:route(From, To,
_Stanza_Message = exmpp_pubsub:xmlel_message(Notification_Type,
case SubIds of
[_SubId] ->
[exmpp_pubsub:xmlel_event([
exmpp_pubsub:xmlel_items('pubsub#event', NodeId,
[exmpp_pubsub:xmlel_retract(ItemId)])
])
];
_SubIds ->
[exmpp_pubsub:xmlel_event([
exmpp_pubsub:xmlel_items('pubsub#event', NodeId,
[exmpp_pubsub:xmlel_retract(ItemId)])
]),
exmpp_pubsub:xmlel_headers(
[exmpp_pubsub:xmlel_header(SubId) || SubId <- SubIds])
]
end)
).
broadcast_item(From, To, Stanza, SubIds) ->
ejabberd_router:route(From, To,
case SubIds of
[_] -> Stanza;
_ -> exmpp_xml:append_child(Stanza, shim_headers(SubIds))
end).
shim_headers(SubIds) ->
?Xmlel(?NS_SHIM, <<"headers">>, [],
[?Xmlel(?NS_SHIM, <<"header">>, [{<<"name">>, <<"SubID">>}], [?CData(SubId)])
|| SubId <- SubIds]
).
%%
xmlel_delay(From, DateTime) ->
{T_string, Tz_string} = jlib:timestamp_to_iso(
calendar:now_to_datetime(DateTime), 'utc'),
?Xmlel(?NS_DELAY, <<"delay">>,
[{<<"from">>, pubsub_tools:jid_to_string(From)},
{<<"stamp">>, list_to_binary(T_string ++ Tz_string)}],
[]).
%%
-spec(broadcast_publish/8 ::
(
Host :: xmpp_jid:raw_jid_component_bare(),
Pubsub_Host :: exmpp_pubsub:host(),
NodeId :: exmpp_pubsub:nodeId(),
Node_Options :: pubsub_options:options_node(),
Node_Owners :: [Node_Owner::xmpp_jid:usr_bare(),...],
Broadcasted_Items :: {
Published_Items :: [{
ItemId :: exmpp_pubsub:itemId(),
Item_Options :: [] | pubsub_options:options_item(),
Payload :: exmpp_pubsub:payload(),
Publisher :: xmpp_jid:usr_entity()
}],
%
Retracted_Items :: [{
ItemId :: exmpp_pubsub:itemId(),
Item_Options :: [] | pubsub_options:options_item()
}]
},
Subscription :: undefined
| {Subscriber :: xmpp_jid:raw_jid_entity(),
Subscription_State :: _,%exmpp_pubsub:subscription_state(),
SubId :: exmpp_pubsub:subId()},
Pubsub_States :: [Pubsub_State::mod_pubsub_dev:pubsub_state(),...])
-> 'ok'
).
broadcast_publish(Host, Pubsub_Host, NodeId, Node_Options, Node_Owners,
{Published_Items, Retracted_Items}, Subscription, Pubsub_States) ->
Event = #event{
host = Host,
component = jlib:make_jid(<<>>, Pubsub_Host, <<>>),
node = #node{
id = NodeId,
owners = Node_Owners,
access_model = get_value(Node_Options, 'access_model'),
rosters_groups_allowed = get_value(Node_Options, 'roster_groups_allowed')
}
},
Broadcasted_Items = lists:map(fun
%%
({ItemId, _Item_Options = []}) ->
#item{
presence_based_delivery = get_value(Node_Options,
'presence_based_delivery'),
stanza = stanza_notify_retract(
get_value(Node_Options, 'notification_type', 'headline'),
NodeId, ItemId)
};
%%
({ItemId, Item_Options}) ->
#item{
access_model = get_value(Item_Options, 'access_model', undefined),
presence_based_delivery = get_value({Node_Options, Item_Options},
'presence_based_delivery'),
rosters_groups_allowed = get_value(Item_Options,
'roster_groups_allowed', []),
stanza = stanza_notify_retract(
get_value({Node_Options, Item_Options}, 'notification_type',
'headline'),
NodeId, ItemId)
};
%%
({ItemId, _Item_Options = [], Payload, Publisher}) ->
#item{
presence_based_delivery = get_value(Node_Options,
'presence_based_delivery'),
stanza = stanza_notify_publish(
get_value(Node_Options, 'notification_type', 'headline'),
NodeId,
ItemId,
_Publisher = case
get_value(Node_Options, 'itemreply', 'owner')
of
'publisher' -> pubsub_tools:jid_to_string(Publisher);
_Owner -> undefined
end,
Payload)
};
%%
({ItemId, Item_Options, Payload, Publisher}) ->
#item{
access_model = get_value(Item_Options, 'access_model'),
presence_based_delivery = get_value({Node_Options, Item_Options},
'presence_based_delivery'),
rosters_groups_allowed = get_value(Item_Options,
'roster_groups_allowed', []),
stanza = stanza_notify_publish(
get_value({Node_Options, Item_Options}, 'notification_type',
'headline'),
NodeId,
ItemId,
_Publisher = case
get_value({Node_Options, Item_Options}, 'itemreply',
'owner')
of
'publisher' -> pubsub_tools:jid_to_string(Publisher);
_Owner -> undefined
end,
Payload)
}
%
end, lists:append(Retracted_Items, Published_Items)),
%
lists:foreach(fun
%%
(#pubsub_state_dev{id = {{U,S,R} = _Entity, _NodeIdx},
affiliation = Affiliation, subscriptions = Subscriptions})
when (Affiliation == 'member'
orelse Affiliation == 'owner'
orelse Affiliation == 'publisher')
andalso Subscriptions =/= [] ->
case Subscription =/= undefined andalso Affiliation == 'owner' of
true ->
notify_subscription(Host, NodeId,
_Pubsub_Component_Jid = Event#event.component,
_Recipient = jlib:make_jid(U,S,<<>>),
_Notification_Type = get_value(Node_Options,
'notification_type'),
Subscription);
false ->
ok
end,
lists:foldl(fun broadcast_item/2,
Event#event{
entity = #entity{
id = {U,S,R},
local = S == Event#event.host,
affiliation = Affiliation,
subscriptions = Subscriptions
},
cache = #cache{},
subids = #subids{}
},
Broadcasted_Items);
%%
(_Pubsub_State) ->
ok
%
end, Pubsub_States).
%%
-spec(broadcast_publish_last/9 ::
(
Host :: xmpp_jid:raw_jid_component_bare(),
Pubsub_Host :: exmpp_pubsub:host(),
NodeId :: exmpp_pubsub:nodeId(),
Node_Options :: pubsub_options:options_node(),
Node_Owners :: [Node_Owner::xmpp_jid:usr_bare(),...],
Published_Items :: [Published_Item :: {
ItemId :: exmpp_pubsub:itemId(),
Item_Options :: [] | pubsub_options:options_item(),
Payload :: exmpp_pubsub:payload(),
Publisher :: xmpp_jid:usr_entity(),
DateTime :: erlang:timestamp()
},...],
Entity :: xmpp_jid:usr_entity(),
Affiliation :: 'member' | 'owner' | 'publisher',
Subscription :: exmpp_pubsub:subscription())
-> none()
).
broadcast_publish_last(Host, Pubsub_Host, NodeId, Node_Options, Node_Owners,
Published_Items, {U,S,R} = Entity, Affiliation, Subscription) ->
Event = #event{
host = Host,
component = jlib:make_jid(<<>>, Pubsub_Host, <<>>),
node = #node{
id = NodeId,
owners = Node_Owners,
access_model = get_value(Node_Options, 'access_model'),
rosters_groups_allowed = get_value(Node_Options, 'roster_groups_allowed')
}
},
Broadcasted_Items = lists:map(fun
%%
({ItemId, _Item_Options = [], Payload, Publisher, DateTime}) ->
#item{
presence_based_delivery = get_value(Node_Options,
'presence_based_delivery'),
stanza = exmpp_xml:append_child(stanza_notify_publish(
get_value(Node_Options, 'notification_type', 'headline'),
NodeId,
ItemId,
_Publisher = case
get_value(Node_Options, 'itemreply', 'owner')
of
'publisher' -> pubsub_tools:jid_to_string(Publisher);
_Owner -> undefined
end,
Payload),
xmlel_delay(Publisher, DateTime))
};
%%
({ItemId, Item_Options, Payload, Publisher, DateTime}) ->
#item{
access_model = get_value(Item_Options, 'access_model'),
presence_based_delivery = get_value({Node_Options, Item_Options},
'presence_based_delivery'),
rosters_groups_allowed = get_value(Item_Options,
'roster_groups_allowed', []),
stanza = exmpp_xml:append_child(stanza_notify_publish(
get_value({Node_Options, Item_Options}, 'notification_type',
'headline'),
NodeId,
ItemId,
_Publisher = case
get_value({Node_Options, Item_Options}, 'itemreply',
'owner')
of
'publisher' -> pubsub_tools:jid_to_string(Publisher);
_Owner -> undefined
end,
Payload),
xmlel_delay(Publisher, DateTime))
}
%
end, Published_Items),
case get_value(Node_Options, 'notify_sub', false) of
true ->
{Subscription_State, SubId, Resource, _} = Subscription,
Subscriber = pubsub_tools:jid_to_string({U,S,Resource}),
Notification_Type = get_value(Node_Options, 'notification_type',
'headline'),
lists:foreach(fun
(Node_Owner) ->
notify_subscription(Host, NodeId,
_Pubsub_Component_Jid = Event#event.component,
_Recipient = pubsub_tools:make_jid(Node_Owner),
Notification_Type,
{Subscriber, Subscription_State, SubId})
end, Node_Owners);
false ->
ok
end,
%%
lists:foldl(fun broadcast_item/2,
Event#event{
entity = #entity{
id = {U,S,R},
local = S == Event#event.host,
affiliation = Affiliation,
subscriptions = [Subscription]
},
cache = #cache{},
subids = #subids{}
},
Broadcasted_Items).
-spec(broadcast_publish_last2/9 ::
(
Host :: xmpp_jid:raw_jid_component_bare(),
Pubsub_Host :: exmpp_pubsub:host(),
NodeId :: exmpp_pubsub:nodeId(),
Node_Options :: pubsub_options:options_node(),
Node_Owners :: [Node_Owner::xmpp_jid:usr_bare(),...],
Published_Items :: [Published_Item :: {
ItemId :: exmpp_pubsub:itemId(),
Item_Options :: [] | pubsub_options:options_item(),
Payload :: exmpp_pubsub:payload(),
Publisher :: xmpp_jid:usr_entity(),
DateTime :: erlang:timestamp()
},...],
Entity :: xmpp_jid:usr_entity(),
Affiliation :: 'member' | 'owner' | 'publisher',
Subscriptions :: exmpp_pubsub:subscription())
-> none()
).
broadcast_publish_last2(Host, Pubsub_Host, NodeId, Node_Options, Node_Owners,
Published_Items, {U,S,R} = Entity, Affiliation, Subscriptions) ->
Event = #event{
host = Host,
component = jlib:make_jid(<<>>, Pubsub_Host, <<>>),
node = #node{
id = NodeId,
owners = Node_Owners,
access_model = get_value(Node_Options, 'access_model'),
rosters_groups_allowed = get_value(Node_Options, 'roster_groups_allowed')
}
},
Broadcasted_Items = lists:map(fun
%%
({ItemId, _Item_Options = [], Payload, Publisher, DateTime}) ->
#item{
presence_based_delivery = get_value(Node_Options,
'presence_based_delivery'),
stanza = exmpp_xml:append_child(stanza_notify_publish(
get_value(Node_Options, 'notification_type', 'headline'),
NodeId,
ItemId,
_Publisher = case
get_value(Node_Options, 'itemreply', 'owner')
of
'publisher' -> pubsub_tools:jid_to_string(Publisher);
_Owner -> undefined
end,
Payload),
xmlel_delay(Publisher, DateTime))
};
%%
({ItemId, Item_Options, Payload, Publisher, DateTime}) ->
#item{
access_model = get_value(Item_Options, 'access_model'),
presence_based_delivery = get_value({Node_Options, Item_Options},
'presence_based_delivery'),
rosters_groups_allowed = get_value(Item_Options,
'roster_groups_allowed', []),
stanza = exmpp_xml:append_child(stanza_notify_publish(
get_value({Node_Options, Item_Options}, 'notification_type',
'headline'),
NodeId,
ItemId,
_Publisher = case
get_value({Node_Options, Item_Options}, 'itemreply',
'owner')
of
'publisher' -> pubsub_tools:jid_to_string(Publisher);
_Owner -> undefined
end,
Payload),
xmlel_delay(Publisher, DateTime))
}
%
end, Published_Items),
%%
lists:foldl(fun broadcast_item/2,
Event#event{
entity = #entity{
id = {U,S,R},
local = S == Event#event.host,
affiliation = Affiliation,
subscriptions = Subscriptions
},
cache = #cache{},
subids = #subids{}
},
Broadcasted_Items).
%%
-define(Resources_Subids(Item, Event),
(Item#item.presence_based_delivery == false
andalso
Event#event.subids#subids.no_presence =/= undefined
andalso
Event#event.subids#subids.no_presence =/= [])
orelse
(Item#item.presence_based_delivery == true
andalso
Event#event.subids#subids.presence =/= undefined
andalso
Event#event.subids#subids.presence =/= [])
).
-define(Item_Access_Model(Item, Event),
Item#item.access_model == undefined
orelse
Item#item.access_model == 'open'
orelse
Item#item.access_model == 'authorize'
orelse
Item#item.access_model == 'whitelist'
orelse
(Item#item.access_model == Event#event.node#node.access_model
andalso
Item#item.access_model =/= 'roster')
orelse
(Item#item.access_model == 'presence'
andalso
(Event#event.entity#entity.affiliation == 'owner'
orelse
% Event#event.entity#entity.affiliation == 'publisher'
% orelse
Event#event.node#node.access_model == 'presence'
orelse
Event#event.node#node.access_model == 'roster'
orelse
Event#event.cache#cache.presence_subscriptions == true)
)
orelse
(Item#item.access_model == 'roster'
andalso
(Event#event.entity#entity.affiliation == 'owner'
orelse
Event#event.entity#entity.affiliation == 'publisher'
orelse
Event#event.cache#cache.rosters_groups == true)
)
).
-define(Broadcast_Event(Item, Event),
(?Resources_Subids(Item, Event)) and (?Item_Access_Model(Item, Event))
).
-define(Presence_Based_Delivery(Item, Event),
Item#item.presence_based_delivery == true
andalso
Event#event.subids#subids.presence == undefined
).
-define(No_Presence_Based_Delivery(Item, Event),
Item#item.presence_based_delivery == false
andalso
Event#event.subids#subids.no_presence == undefined
).
-define(Presence_Based_Delivery_Cache(Item, Event),
Item#item.presence_based_delivery == true
andalso
Event#event.cache#cache.presence == undefined
).
-define(Item_Access_Model_Presence(Item, Event),
Item#item.access_model == 'presence'
andalso
Event#event.cache#cache.presence_subscriptions == undefined
).
-define(Item_Access_Model_Roster(Item, Event),
Item#item.access_model == 'roster'
andalso
Event#event.cache#cache.rosters_groups == undefined
).
-spec(broadcast_item/2 ::
(
Item :: mod_pubsub_dev:item(),
Event :: mod_pubsub_dev:event())
-> Event::mod_pubsub_dev:event()
% Event::#event{cache::#cache{rosters_groups :: undefined}}
).
%%
broadcast_item(#item{stanza = Stanza} = Item,
#event{entity = #entity{id = {U,S,_R}}} = Event)
when ?Broadcast_Event(Item, Event) ->
lists:foreach(fun
({Resource, SubIds}) ->
broadcast_item(_From = Event#event.component,
_To = jlib:make_jid(U,S,Resource),
Stanza,
SubIds)
end,
_Resources_SubIds = case Item#item.presence_based_delivery of
true -> Event#event.subids#subids.presence;
false -> Event#event.subids#subids.no_presence
end),
Event#event{cache = Event#event.cache#cache{rosters_groups = undefined}};
%%
broadcast_item(Item, Event)
when ?No_Presence_Based_Delivery(Item, Event) ->
{Presence_Cache, Resources_SubIds} = resources_subids(
_Entity = Event#event.entity#entity.id,
_Local_Entity = Event#event.entity#entity.local,
_Presence_Based_Delivery = false,
_Subscriptions = Event#event.entity#entity.subscriptions,
{Event#event.cache#cache.presence, []}),
case Resources_SubIds of
[] ->
Event#event{
cache = Event#event.cache#cache{
presence = Presence_Cache,
rosters_groups = undefined
},
subids = Event#event.subids#subids{
no_presence = []
}
};
_Resources_SubIds ->
broadcast_item(Item,
Event#event{
cache = Event#event.cache#cache{
presence = Presence_Cache
},
subids = Event#event.subids#subids{
no_presence = Resources_SubIds
}
}
)
end;
%%
broadcast_item(Item, #event{entity = #entity{id = {U,S,_R}}} = Event)
when ?Presence_Based_Delivery_Cache(Item, Event) ->
case get_resources_show(U,S) of
[] ->
Event#event{
cache = Event#event.cache#cache{
presence = [],
rosters_groups = undefined
}
};
Resources_Show ->
broadcast_item(Item,
Event#event{
cache = Event#event.cache#cache{
presence = Resources_Show
}
})
end;
%%
broadcast_item(Item, Event)
when ?Presence_Based_Delivery(Item, Event) ->
{Presence_Cache, Resources_SubIds} = resources_subids(
_Entity = Event#event.entity#entity.id,
_Local_Entity = Event#event.entity#entity.local,
_Presence_Based_Delivery = true,
_Subscriptions = Event#event.entity#entity.subscriptions,
{Event#event.cache#cache.presence, []}),
case Resources_SubIds of
[] ->
Event#event{
cache = Event#event.cache#cache{
presence = Presence_Cache,
rosters_groups = undefined
},
subids = Event#event.subids#subids{
presence = []}
};
_Resources_SubIds ->
broadcast_item(Item,
Event#event{
cache = Event#event.cache#cache{
presence = Presence_Cache
},
subids = Event#event.subids#subids{
presence = Resources_SubIds
}
})
end;
%%
broadcast_item(Item, Event)
when ?Item_Access_Model_Presence(Item, Event) ->
case
is_contact_subscribed_to_node_owners(
_Host = Event#event.host,
_Entity = Event#event.entity#entity.id,
_Node_Owners = Event#event.node#node.owners
)
of
false ->
Event#event{
cache = Event#event.cache#cache{
presence_subscriptions = false,
rosters_groups = undefined
}
};
_Node_Owner ->
broadcast_item(Item,
Event#event{
cache = Event#event.cache#cache{
presence_subscriptions = true
}
}
)
end;
%%
broadcast_item(Item, Event)
when ?Item_Access_Model_Roster(Item, Event) ->
case Event#event.node#node.access_model of
'roster' ->
case Item#item.rosters_groups_allowed of
%%
[] ->
broadcast_item(Item,
Event#event{
cache = Event#event.cache#cache{
rosters_groups = true
}
}
);
%%
Item_Rosters_Groups_Allowed ->
case
is_contact_in_allowed_roster_groups(
_Contact = Event#event.entity#entity.id,
_Rosters_Groups_Allowed = Item_Rosters_Groups_Allowed
)
of
false ->
Event;
{_Node_Owner, _Roster_Group_Allowed} ->
broadcast_item(Item,
Event#event{
cache = Event#event.cache#cache{
rosters_groups = true
}
})
end
end;
_Node_Access_Model ->
case
is_contact_in_allowed_roster_groups(
_Contact = Event#event.entity#entity.id,
_Rosters_Groups_Allowed = case
Item#item.rosters_groups_allowed
of
[] ->
Event#event.node#node.rosters_groups_allowed;
Item_Rosters_Groups_Allowed ->
Item_Rosters_Groups_Allowed
end
)
of
false ->
Event;
{_Node_Owner, _Roster_Group_Allowed} ->
broadcast_item(Item,
Event#event{
cache = Event#event.cache#cache{rosters_groups = true}
})
end
end;
%%
broadcast_item(_Item, Event) ->
Event#event{cache = Event#event.cache#cache{rosters_groups = undefined}}.
%%
-spec(resources_subids/5 ::
(
Entity :: xmpp_jid:usr_bare(),
Local_Entity :: boolean(),
Presence_Based_Delivery :: boolean(),
Subscriptions :: _,%exmpp_pubsub:subscriptions() | [],
Cache :: {
Presence_Cache :: undefined | [] | mod_pubsub_dev:presence_cache(),
Resources_SubIds :: undefined | [] | mod_pubsub_dev:resources_subids()
})
-> {Presence_Cache :: undefined | [] | mod_pubsub_dev:presence_cache(),
Resources_SubIds :: [] | mod_pubsub_dev:resources_subids()}
).
resources_subids(_Entity, _Local_Entity, _Presence_Based_Delivery,
[] = _Subscriptions, {Presence_Cache, Resources_SubIds}) ->
{Presence_Cache, Resources_SubIds};
%%
resources_subids(Entity, Local_Entity, Presence_Based_Delivery,
[{'pending', _SubId, _Resource, _Subscription_Options} | Subscriptions],
{Presence_Cache, Resources_SubIds}) ->
resources_subids(Entity, Local_Entity, Presence_Based_Delivery, Subscriptions,
{Presence_Cache, Resources_SubIds});
%%
resources_subids(Entity, Local_Entity, Presence_Based_Delivery,
[{Subscription_State, SubId, {caps, Resource}, Subscription_Options}
| Subscriptions], {Presence_Cache, Resources_SubIds}) ->
resources_subids(Entity, Local_Entity, Presence_Based_Delivery,
[{Subscription_State, SubId, Resource, Subscription_Options}
| Subscriptions],
{Presence_Cache, Resources_SubIds});
%% Presence_Based_Delivery = false
%% Local_Entity = boolean()
%% Subscription_Options = []
resources_subids(Entity, Local_Entity, false = Presence_Based_Delivery,
[{_Subscription_State, SubId, Resource, [] = _Subscription_Options}
| Subscriptions], {Presence_Cache, Resources_SubIds}) ->
resources_subids(Entity, Local_Entity, Presence_Based_Delivery, Subscriptions,
{Presence_Cache,
_Resources_SubIds = resources_subids(Resource, SubId,
Resources_SubIds)});
%% Presence_Based_Delivery = false
%% Local_Entity = true
%% Resource = undefined | xmpp_jid:resource_jid()
%% Subscription_Options =/= []
resources_subids({U,S,R} = _Entity, true = Local_Entity, false = Presence_Based_Delivery,
[{_Subscription_State, SubId, Resource, Subscription_Options} | Subscriptions],
{Presence_Cache, Resources_SubIds}) ->
resources_subids({U,S,R}, Local_Entity, Presence_Based_Delivery,
Subscriptions,
case get_value(Subscription_Options, 'deliver', true) of
true ->
case get_value(Subscription_Options, 'show-values') of
'none' -> %% 'show-values' NA
{Presence_Cache,
_Resources_SubIds = resources_subids(Resource, SubId,
Resources_SubIds)};
%%
Show_Values
when Show_Values == []
orelse Presence_Cache == [] ->
{Presence_Cache, Resources_SubIds};
%%
Show_Values
when Presence_Cache == undefined ->
case get_resources_show(U, S) of
%%%%
[] ->
{_Presence_Cache = [], Resources_SubIds};
%%%%
Resources_Show ->
{_Presence_Cache = Resources_Show,
_Resources_SubIds = lists:foldl(fun
(Resource_To_Deliver, Resources_SubIds_Bis) ->
resources_subids(Resource_To_Deliver,
SubId, Resources_SubIds_Bis)
end,
Resources_SubIds,
_Resources_To_Deliver = resources_to_deliver(
Resource, Show_Values, Resources_Show,
[]))}
end;
%%
Show_Values ->
{Presence_Cache,
_Resources_SubIds = lists:foldl(fun
(Resource_To_Deliver, Resources_SubIds_Bis) ->
resources_subids(Resource_To_Deliver,
SubId, Resources_SubIds_Bis)
end,
Resources_SubIds,
_Resources_To_Deliver = resources_to_deliver(
Resource, Show_Values, Presence_Cache, []))}
end;
false ->
{Presence_Cache, Resources_SubIds}
end);
%% Presence_Based_Delivery = false
%% Local_Entity = false
%% Subscription_Options =/= []
resources_subids(Entity, false = Local_Entity, false = Presence_Based_Delivery,
[{_Subscription_State, SubId, Resource, Subscription_Options} | Subscriptions],
{Presence_Cache, Resources_SubIds}) ->
resources_subids(Entity, Local_Entity, Presence_Based_Delivery, Subscriptions,
case get_value(Subscription_Options, 'deliver', true) of
true ->
{Presence_Cache,
_Resources_SubIds = resources_subids(Resource, SubId,
Resources_SubIds)};
false ->
{Presence_Cache, Resources_SubIds}
end);
%% Presence_Based_Delivery = true
%% Local_Entity = true
%% Subscription_Options : NA
%% Presence_Cache = 'none'
resources_subids({U,S,R} = _Entity, true = _Local_Entity,
true = _Presence_Based_Delivery, Subscriptions,
{undefined = _Presence_Cache, Resources_SubIds}) ->
case get_resources_show(U, S) of
[] ->
{[], Resources_SubIds};
_Resources_Show = Presence_Cache ->
resources_subids({U,S,R}, true, true, Subscriptions,
{Presence_Cache, Resources_SubIds})
end;
%% Presence_Based_Delivery = true
%% Local_Entity = true
%% Subscription_Options : NA
%% Presence_Cache = []
resources_subids(_Entity, true = _Local_Entity, true = _Presence_Based_Delivery,
_Subscriptions, {[] = Presence_Cache, Resources_SubIds}) ->
{Presence_Cache, Resources_SubIds};
%% Presence_Based_Delivery = true
%% Local_Entity = true
%% Resource = undefined | xmpp_jid:resource_jid()
%% Subscription_Options =/= []
%% Presence_Cache =/= []
resources_subids(Entity, true = _Local_Entity, true = Presence_Based_Delivery,
[{_Subscription_State, SubId, Resource, Subscription_Options} | Subscriptions],
{Presence_Cache, Resources_SubIds}) ->
resources_subids(Entity, true, Presence_Based_Delivery, Subscriptions,
case
get_value(Subscription_Options, 'deliver', true) == true
andalso
(Resource == undefined
orelse lists:keymember(Resource, 1, Presence_Cache))
of
true ->
{Presence_Cache,
_Resources_SubIds = case
get_value(Subscription_Options, 'show-values')
of
'none' when Resource == undefined -> %% 'show-values' NA
lists:foldl(fun
({Resource_To_Deliver, _Show}, Resources_SubIds_Bis) ->
resources_subids(Resource_To_Deliver,
SubId, Resources_SubIds_Bis)
end, Resources_SubIds, Presence_Cache);
'none' -> %% 'show-values' NA
resources_subids(Resource, SubId, Resources_SubIds);
[] ->
Resources_SubIds;
Show_Values ->
lists:foldl(fun
(Resource_To_Deliver, Resources_SubIds_Bis) ->
resources_subids(Resource_To_Deliver,
SubId, Resources_SubIds_Bis)
end,
Resources_SubIds,
_Resources_To_Deliver = resources_to_deliver(
Resource, Show_Values, Presence_Cache, []))
end};
false ->
{Presence_Cache, Resources_SubIds}
end);
%% Presence_Based_Delivery = true
%% Local_Entity = false
%% Subscription_Options : NA
resources_subids(_Entity, false = _Local_Entity, true = _Presence_Based_Delivery,
_Subscriptions, {Presence_Cache, Resources_SubIds}) ->
{Presence_Cache, Resources_SubIds}.
%%
-spec(resources_subids/3 ::
(
Resource :: xmpp_jid:resource_jid(),
SubId :: exmpp_pubsub:subId(),
Resources_SubIds :: [] | mod_pubsub_dev:resources_subids())
-> %%
Resources_SubIds::mod_pubsub_dev:resources_subids()
).
resources_subids(Resource, SubId, Resources_SubIds) ->
_Resources_SubIds = case lists:keyfind(Resource, 1, Resources_SubIds) of
{_Resource, SubIds} ->
lists:keyreplace(Resource, 1, Resources_SubIds,
{Resource, [SubId | SubIds]});
false ->
[{Resource, [SubId]} | Resources_SubIds]
end.
%%
-spec(resources_to_deliver/4 ::
(
Resource :: undefined | xmpp_jid:resource_jid(),
Show_Values :: ['away' | 'chat' | 'dnd' | 'online' | 'xa',...],
Presence_Cache :: [] | mod_pubsub_dev:presence_cache(),
Resources_To_Deliver :: [Resource::xmpp_jid:resource_jid()])
-> %%
Resources_To_Deliver::[Resource::xmpp_jid:resource_jid()]
).
resources_to_deliver(_Resource, _Show_Values, [] = _Presence_Cache,
Resources_To_Deliver) ->
Resources_To_Deliver;
%%
resources_to_deliver(Resource, Show_Values, [Resource_Show | Presence_Cache],
Resources_To_Deliver) ->
resources_to_deliver(Resource, Show_Values, Presence_Cache,
_Resources_To_Deliver = resource_to_deliver(Resource, Show_Values,
Resource_Show, Resources_To_Deliver)).
%%
-spec(resource_to_deliver/4 ::
(
Resource :: undefined | xmpp_jid:resource_jid(),
Show_Values :: ['away' | 'chat' | 'dnd' | 'online' | 'xa',...],
Resource_Show :: mod_pubsub_dev:resource_show(),
Resources_To_Deliver :: [Resource::xmpp_jid:resource_jid()])
-> %%
Resources_To_Deliver::[Resource::xmpp_jid:resource_jid()]
).
resource_to_deliver(_Resource, [] = _Show_Values, _Resource_Show,
Resources_To_Deliver) ->
Resources_To_Deliver;
%%
resource_to_deliver(undefined = _Resource, [_Show_Value = Show | Show_Values],
{Resource, Show}, Resources_To_Deliver) ->
resource_to_deliver(_Resource = undefined, Show_Values, {Resource, Show},
[_Resource_To_Deliver = Resource | Resources_To_Deliver]);
%%
resource_to_deliver(Resource, [_Show_Value = Show | Show_Values],
{Resource, Show}, Resources_To_Deliver) ->
resource_to_deliver(Resource, Show_Values, {Resource, Show},
[_Resource_To_Deliver = Resource | Resources_To_Deliver]);
%%
resource_to_deliver(Resource, [_Show_Value | Show_Values], Resource_Show,
Resources_To_Deliver) ->
resource_to_deliver(Resource, Show_Values, Resource_Show,
Resources_To_Deliver).
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