25
1
mirror of https://github.com/processone/ejabberd.git synced 2024-12-24 17:29:28 +01:00
xmpp.chapril.org-ejabberd/src/node_pep.erl

501 lines
14 KiB
Erlang

%%% ====================================================================
%%% ``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 2006-2014, ProcessOne
%%% All Rights Reserved.''
%%% This software is copyright 2006-2014, ProcessOne.
%%%
%%%
%%% @copyright 2006-2014 ProcessOne
%%% @author Christophe Romain <christophe.romain@process-one.net>
%%% [http://www.process-one.net/]
%%% @version {@vsn}, {@date} {@time}
%%% @end
%%% ====================================================================
%%% @doc The module <strong>{@module}</strong> is the pep PubSub plugin.
%%% <p>PubSub plugin nodes are using the {@link gen_pubsub_node} behaviour.</p>
-module(node_pep).
-author('christophe.romain@process-one.net').
-include("ejabberd.hrl").
-include("logger.hrl").
-include("pubsub.hrl").
-include("jlib.hrl").
-behaviour(gen_pubsub_node).
%% API definition
-export([init/3, terminate/2, options/0, features/0,
create_node_permission/6, create_node/2, delete_node/1,
purge_node/2, subscribe_node/8, unsubscribe_node/4,
publish_item/6, delete_item/4, remove_extra_items/3,
get_entity_affiliations/2, get_node_affiliations/1,
get_affiliation/2, set_affiliation/3,
get_entity_subscriptions/2, get_node_subscriptions/1,
get_subscriptions/2, set_subscriptions/4,
get_pending_nodes/2, get_states/1, get_state/2,
set_state/1, get_items/6, get_items/2, get_item/7,
get_item/2, set_item/1, get_item_name/3, node_to_path/1,
path_to_node/1]).
init(Host, ServerHost, Opts) ->
node_hometree:init(Host, ServerHost, Opts),
complain_if_modcaps_disabled(ServerHost),
ok.
terminate(Host, ServerHost) ->
node_hometree:terminate(Host, ServerHost), ok.
-spec(options/0 :: () -> NodeOptions::mod_pubsub:nodeOptions()).
options() ->
[{deliver_payloads, true}, {notify_config, false},
{notify_delete, false}, {notify_retract, false},
{purge_offline, false}, {persist_items, true},
{max_items, 1}, {subscribe, true},
{access_model, presence}, {roster_groups_allowed, []},
{publish_model, publishers},
{notification_type, headline},
{max_payload_size, ?MAX_PAYLOAD_SIZE},
{send_last_published_item, on_sub_and_presence},
{deliver_notifications, true},
{presence_based_delivery, true}].
-spec(features/0 :: () -> Features::[binary(),...]).
features() ->
[<<"create-nodes">>, %*
<<"auto-create">>, %*
<<"auto-subscribe">>, %*
<<"delete-nodes">>, %*
<<"delete-items">>, %*
<<"filtered-notifications">>, %*
<<"modify-affiliations">>, <<"outcast-affiliation">>,
<<"persistent-items">>,
<<"publish">>, %*
<<"purge-nodes">>, <<"retract-items">>,
<<"retrieve-affiliations">>,
<<"retrieve-items">>, %*
<<"retrieve-subscriptions">>, <<"subscribe">>].
-spec(create_node_permission/6 ::
(
Host :: mod_pubsub:hostPEP(),
ServerHost :: binary(),
NodeId :: mod_pubsub:nodeId(),
_ParentNodeId :: mod_pubsub:nodeId(),
Owner :: jid(),
Access :: atom())
-> {result, boolean()}
).
create_node_permission(Host, ServerHost, _Node, _ParentNode, Owner, Access) ->
LOwner = jlib:jid_tolower(Owner),
{User, Server, _Resource} = LOwner,
Allowed = case LOwner of
{<<"">>, Host, <<"">>} ->
true; % pubsub service always allowed
_ ->
case acl:match_rule(ServerHost, Access, LOwner) of
allow ->
case Host of
{User, Server, _} -> true;
_ -> false
end;
E -> ?DEBUG("Create not allowed : ~p~n", [E]), false
end
end,
{result, Allowed}.
-spec(create_node/2 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
Owner :: jid())
-> {result, {default, broadcast}}
).
create_node(NodeIdx, Owner) ->
node_hometree:create_node(NodeIdx, Owner).
-spec(delete_node/1 ::
(
Nodes :: [mod_pubsub:pubsubNode(),...])
-> {result,
{[],
[{mod_pubsub:pubsubNode(),
[{ljid(), [{mod_pubsub:subscription(), mod_pubsub:subId()}]},...]},...]
}
}
).
delete_node(Removed) ->
case node_hometree:delete_node(Removed) of
{result, {_, _, Result}} -> {result, {[], Result}};
Error -> Error
end.
-spec(subscribe_node/8 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
Sender :: jid(),
Subscriber :: ljid(),
AccessModel :: mod_pubsub:accessModel(),
SendLast :: 'never' | 'on_sub' | 'on_sub_and_presence',
PresenceSubscription :: boolean(),
RosterGroup :: boolean(),
Options :: mod_pubsub:subOptions())
-> {result, {default, subscribed, mod_pubsub:subId()}}
| {result, {default, subscribed, mod_pubsub:subId(), send_last}}
| {result, {default, pending, mod_pubsub:subId()}}
%%%
| {error, xmlel()}
).
subscribe_node(NodeIdx, Sender, Subscriber, AccessModel, SendLast,
PresenceSubscription, RosterGroup, Options) ->
node_hometree:subscribe_node(NodeIdx, Sender, Subscriber, AccessModel,
SendLast, PresenceSubscription, RosterGroup, Options).
-spec(unsubscribe_node/4 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
Sender :: jid(),
Subscriber :: ljid(),
SubId :: subId())
-> {result, default}
%
| {error, xmlel()}
).
unsubscribe_node(NodeIdx, Sender, Subscriber, SubID) ->
case node_hometree:unsubscribe_node(NodeIdx, Sender, Subscriber, SubID) of
{error, Error} -> {error, Error};
{result, _} -> {result, []}
end.
-spec(publish_item/6 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
Publisher :: jid(),
PublishModel :: mod_pubsub:publishModel(),
Max_Items :: non_neg_integer(),
ItemId :: <<>> | mod_pubsub:itemId(),
Payload :: mod_pubsub:payload())
-> {result, {default, broadcast, [mod_pubsub:itemId()]}}
%%%
| {error, xmlel()}
).
publish_item(NodeIdx, Publisher, Model, MaxItems, ItemId, Payload) ->
node_hometree:publish_item(NodeIdx, Publisher, Model, MaxItems, ItemId, Payload).
-spec(remove_extra_items/3 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
Max_Items :: unlimited | non_neg_integer(),
ItemIds :: [mod_pubsub:itemId()])
-> {result,
{NewItems::[mod_pubsub:itemId()],
OldItems::[mod_pubsub:itemId()]}
}
).
remove_extra_items(NodeId, MaxItems, ItemIds) ->
node_hometree:remove_extra_items(NodeId, MaxItems, ItemIds).
-spec(delete_item/4 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
Publisher :: jid(),
PublishModel :: mod_pubsub:publishModel(),
ItemId :: <<>> | mod_pubsub:itemId())
-> {result, {default, broadcast}}
%%%
| {error, xmlel()}
).
delete_item(NodeIdx, Publisher, PublishModel, ItemId) ->
node_hometree:delete_item(NodeIdx, Publisher, PublishModel, ItemId).
-spec(purge_node/2 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
Owner :: jid())
-> {result, {default, broadcast}}
| {error, xmlel()}
).
purge_node(NodeIdx, Owner) ->
node_hometree:purge_node(NodeIdx, Owner).
-spec(get_entity_affiliations/2 ::
(
Host :: mod_pubsub:hostPEP(),
Owner :: jid())
-> {result, [{mod_pubsub:pubsubNode(), mod_pubsub:affiliation()}]}
).
get_entity_affiliations(_Host, Owner) ->
{_, D, _} = SubKey = jlib:jid_tolower(Owner),
SubKey = jlib:jid_tolower(Owner),
GenKey = jlib:jid_remove_resource(SubKey),
States = mnesia:match_object(#pubsub_state{stateid =
{GenKey, '_'},
_ = '_'}),
NodeTree = case catch
ets:lookup(gen_mod:get_module_proc(D, config), nodetree)
of
[{nodetree, N}] -> N;
_ -> nodetree_tree
end,
Reply = lists:foldl(fun (#pubsub_state{stateid = {_, N},
affiliation = A},
Acc) ->
case NodeTree:get_node(N) of
#pubsub_node{nodeid = {{_, D, _}, _}} =
Node ->
[{Node, A} | Acc];
_ -> Acc
end
end,
[], States),
{result, Reply}.
-spec(get_node_affiliations/1 ::
(
NodeIdx::mod_pubsub:nodeIdx())
-> {result, [{ljid(), mod_pubsub:affiliation()}]}
).
get_node_affiliations(NodeIdx) ->
node_hometree:get_node_affiliations(NodeIdx).
-spec(get_affiliation/2 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
Owner :: jid())
-> {result, mod_pubsub:affiliation()}
).
get_affiliation(NodeIdx, Owner) ->
node_hometree:get_affiliation(NodeIdx, Owner).
-spec(set_affiliation/3 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
Owner :: ljid(),
Affiliation :: mod_pubsub:affiliation())
-> ok
).
set_affiliation(NodeIdx, Owner, Affiliation) ->
node_hometree:set_affiliation(NodeIdx, Owner, Affiliation).
-spec(get_entity_subscriptions/2 ::
(
Host :: mod_pubsub:hostPEP(),
Owner :: jid())
-> {result,
[{mod_pubsub:pubsubNode(),
mod_pubsub:subscription(),
mod_pubsub:subId(),
ljid()}]
}
).
get_entity_subscriptions(_Host, Owner) ->
{U, D, _} = SubKey = jlib:jid_tolower(Owner),
GenKey = jlib:jid_remove_resource(SubKey),
States = case SubKey of
GenKey ->
mnesia:match_object(#pubsub_state{stateid =
{{U, D, '_'}, '_'},
_ = '_'});
_ ->
mnesia:match_object(#pubsub_state{stateid =
{GenKey, '_'},
_ = '_'})
++
mnesia:match_object(#pubsub_state{stateid =
{SubKey, '_'},
_ = '_'})
end,
NodeTree = case catch
ets:lookup(gen_mod:get_module_proc(D, config), nodetree)
of
[{nodetree, N}] -> N;
_ -> nodetree_tree
end,
Reply = lists:foldl(fun (#pubsub_state{stateid = {J, N},
subscriptions = Ss},
Acc) ->
case NodeTree:get_node(N) of
#pubsub_node{nodeid = {{_, D, _}, _}} = Node ->
lists:foldl(fun
({subscribed, SubID}, Acc2) ->
[{Node, subscribed, SubID, J} | Acc2];
({pending, _SubID}, Acc2) ->
[{Node, pending, J} | Acc2];
(S, Acc2) ->
[{Node, S, J} | Acc2]
end, Acc, Ss);
_ -> Acc
end
end,
[], States),
{result, Reply}.
-spec(get_node_subscriptions/1 ::
(
NodeIdx::mod_pubsub:nodeIdx())
-> {result,
[{ljid(), mod_pubsub:subscription(), mod_pubsub:subId()}] |
[{ljid(), none},...]
}
).
get_node_subscriptions(NodeIdx) ->
node_hometree:get_node_subscriptions(NodeIdx).
-spec(get_subscriptions/2 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
Owner :: ljid())
-> {result, [{mod_pubsub:subscription(), mod_pubsub:subId()}]}
).
get_subscriptions(NodeIdx, Owner) ->
node_hometree:get_subscriptions(NodeIdx, Owner).
-spec(set_subscriptions/4 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
Owner :: jid(),
Subscription :: mod_pubsub:subscription(),
SubId :: mod_pubsub:subId())
-> ok
%%%
| {error, xmlel()}
).
set_subscriptions(NodeIdx, Owner, Subscription, SubId) ->
node_hometree:set_subscriptions(NodeIdx, Owner, Subscription, SubId).
-spec(get_pending_nodes/2 ::
(
Host :: mod_pubsub:hostPubsub(),
Owner :: jid())
-> {result, [mod_pubsub:nodeId()]}
).
get_pending_nodes(Host, Owner) ->
node_hometree:get_pending_nodes(Host, Owner).
-spec(get_states/1 ::
(
NodeIdx::mod_pubsub:nodeIdx())
-> {result, [mod_pubsub:pubsubState()]}
).
get_states(NodeIdx) -> node_hometree:get_states(NodeIdx).
-spec(get_state/2 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
JID :: ljid())
-> mod_pubsub:pubsubState()
).
get_state(NodeIdx, JID) ->
node_hometree:get_state(NodeIdx, JID).
-spec(set_state/1 ::
(
State::mod_pubsub:pubsubState())
-> ok
).
set_state(State) -> node_hometree:set_state(State).
-spec(get_items/2 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
_From :: jid())
-> {result, [mod_pubsub:pubsubItem()]}
).
get_items(NodeIdx, From) ->
node_hometree:get_items(NodeIdx, From).
-spec(get_items/6 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
JID :: jid(),
AccessModel :: mod_pubsub:accessModel(),
Presence_Subscription :: boolean(),
RosterGroup :: boolean(),
_SubId :: mod_pubsub:subId())
-> {result, [mod_pubsub:pubsubItem()]}
%%%
| {error, xmlel()}
).
get_items(NodeIdx, JID, AccessModel, PresenceSubscription, RosterGroup, SubId) ->
node_hometree:get_items(NodeIdx, JID, AccessModel, PresenceSubscription, RosterGroup, SubId).
-spec(get_item/2 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
ItemId :: mod_pubsub:itemId())
-> {result, mod_pubsub:pubsubItem()}
| {error, xmlel()}
).
get_item(NodeIdx, ItemId) ->
node_hometree:get_item(NodeIdx, ItemId).
-spec(get_item/7 ::
(
NodeIdx :: mod_pubsub:nodeIdx(),
ItemId :: mod_pubsub:itemId(),
JID :: jid(),
AccessModel :: mod_pubsub:accessModel(),
PresenceSubscription :: boolean(),
RosterGroup :: boolean(),
SubId :: mod_pubsub:subId())
-> {result, mod_pubsub:pubsubItem()}
| {error, xmlel()}
).
get_item(NodeIdx, ItemId, JID, AccessModel, PresenceSubscription, RosterGroup,
SubId) ->
node_hometree:get_item(NodeIdx, ItemId, JID, AccessModel, PresenceSubscription,
RosterGroup, SubId).
-spec(set_item/1 ::
(
Item::mod_pubsub:pubsubItem())
-> ok
).
set_item(Item) -> node_hometree:set_item(Item).
get_item_name(Host, Node, Id) ->
node_hometree:get_item_name(Host, Node, Id).
node_to_path(Node) -> node_flat:node_to_path(Node).
path_to_node(Path) -> node_flat:path_to_node(Path).
%%%
%%% Internal
%%%
%% @doc Check mod_caps is enabled, otherwise show warning.
%% The PEP plugin for mod_pubsub requires mod_caps to be enabled in the host.
%% Check that the mod_caps module is enabled in that Jabber Host
%% If not, show a warning message in the ejabberd log file.
complain_if_modcaps_disabled(ServerHost) ->
case gen_mod:is_loaded(ServerHost, mod_caps) of
false ->
?WARNING_MSG("The PEP plugin is enabled in mod_pubsub "
"of host ~p. This plugin requires mod_caps "
"to be enabled, but it isn't.",
[ServerHost]);
true -> ok
end.