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xmpp.chapril.org-ejabberd/src/node_pep.erl

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%%%----------------------------------------------------------------------
%%% File : node_pep.erl
%%% Author : Christophe Romain <christophe.romain@process-one.net>
%%% Purpose : Standard PubSub PEP plugin
%%% Created : 1 Dec 2007 by Christophe Romain <christophe.romain@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2017 ProcessOne
%%%
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%%% 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.
%%%
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%%% 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.
%%%
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%%% 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.
%%%
%%%----------------------------------------------------------------------
%%% @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).
-behaviour(gen_pubsub_node).
-author('christophe.romain@process-one.net').
-include("pubsub.hrl").
-include("logger.hrl").
-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/7, 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/7, get_items/3, get_item/7,
get_item/2, set_item/1, get_item_name/3, node_to_path/1,
path_to_node/1, depends/3]).
depends(_Host, _ServerHost, _Opts) ->
[{mod_caps, hard}].
init(Host, ServerHost, Opts) ->
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node_flat:init(Host, ServerHost, Opts),
ok.
terminate(Host, ServerHost) ->
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node_flat:terminate(Host, ServerHost),
ok.
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},
{itemreply, none}].
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">>].
create_node_permission(Host, ServerHost, _Node, _ParentNode, Owner, Access) ->
LOwner = jid:tolower(Owner),
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{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;
_ ->
false
end
end,
{result, Allowed}.
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create_node(Nidx, Owner) ->
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node_flat:create_node(Nidx, Owner).
delete_node(Nodes) ->
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{result, {_, _, Result}} = node_flat:delete_node(Nodes),
{result, {[], Result}}.
subscribe_node(Nidx, Sender, Subscriber, AccessModel,
SendLast, PresenceSubscription, RosterGroup, Options) ->
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node_flat:subscribe_node(Nidx, Sender, Subscriber, AccessModel, SendLast,
PresenceSubscription, RosterGroup, Options).
unsubscribe_node(Nidx, Sender, Subscriber, SubId) ->
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case node_flat:unsubscribe_node(Nidx, Sender, Subscriber, SubId) of
{error, Error} -> {error, Error};
{result, _} -> {result, []}
end.
publish_item(Nidx, Publisher, Model, MaxItems, ItemId, Payload, PubOpts) ->
node_flat:publish_item(Nidx, Publisher, Model, MaxItems, ItemId,
Payload, PubOpts).
remove_extra_items(Nidx, MaxItems, ItemIds) ->
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node_flat:remove_extra_items(Nidx, MaxItems, ItemIds).
delete_item(Nidx, Publisher, PublishModel, ItemId) ->
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node_flat:delete_item(Nidx, Publisher, PublishModel, ItemId).
purge_node(Nidx, Owner) ->
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node_flat:purge_node(Nidx, Owner).
get_entity_affiliations(Host, Owner) ->
{_, D, _} = SubKey = jid:tolower(Owner),
SubKey = jid:tolower(Owner),
GenKey = jid:remove_resource(SubKey),
States = mnesia:match_object(#pubsub_state{stateid = {GenKey, '_'}, _ = '_'}),
NodeTree = mod_pubsub:tree(Host),
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}.
get_node_affiliations(Nidx) ->
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node_flat:get_node_affiliations(Nidx).
get_affiliation(Nidx, Owner) ->
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node_flat:get_affiliation(Nidx, Owner).
set_affiliation(Nidx, Owner, Affiliation) ->
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node_flat:set_affiliation(Nidx, Owner, Affiliation).
get_entity_subscriptions(Host, Owner) ->
{U, D, _} = SubKey = jid:tolower(Owner),
GenKey = 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 = mod_pubsub:tree(Host),
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}.
get_node_subscriptions(Nidx) ->
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node_flat:get_node_subscriptions(Nidx).
get_subscriptions(Nidx, Owner) ->
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node_flat:get_subscriptions(Nidx, Owner).
set_subscriptions(Nidx, Owner, Subscription, SubId) ->
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node_flat:set_subscriptions(Nidx, Owner, Subscription, SubId).
get_pending_nodes(Host, Owner) ->
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node_flat:get_pending_nodes(Host, Owner).
get_states(Nidx) ->
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node_flat:get_states(Nidx).
get_state(Nidx, JID) ->
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node_flat:get_state(Nidx, JID).
set_state(State) ->
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node_flat:set_state(State).
get_items(Nidx, From, RSM) ->
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node_flat:get_items(Nidx, From, RSM).
get_items(Nidx, JID, AccessModel, PresenceSubscription, RosterGroup, SubId, RSM) ->
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node_flat:get_items(Nidx, JID, AccessModel,
PresenceSubscription, RosterGroup, SubId, RSM).
get_item(Nidx, ItemId) ->
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node_flat:get_item(Nidx, ItemId).
get_item(Nidx, ItemId, JID, AccessModel, PresenceSubscription, RosterGroup, SubId) ->
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node_flat:get_item(Nidx, ItemId, JID, AccessModel,
PresenceSubscription, RosterGroup, SubId).
set_item(Item) ->
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node_flat:set_item(Item).
get_item_name(Host, Node, Id) ->
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node_flat: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).