mirror of
https://github.com/processone/ejabberd.git
synced 2024-11-22 16:20:52 +01:00
125 lines
3.9 KiB
Erlang
125 lines
3.9 KiB
Erlang
%%%----------------------------------------------------------------------
|
|
%%% File : nodetree_virtual.erl
|
|
%%% Author : Christophe Romain <christophe.romain@process-one.net>
|
|
%%% Purpose : Standard node tree plugin using no storage backend
|
|
%%% Created : 1 Dec 2007 by Christophe Romain <christophe.romain@process-one.net>
|
|
%%%
|
|
%%%
|
|
%%% ejabberd, Copyright (C) 2002-2017 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.
|
|
%%%
|
|
%%%----------------------------------------------------------------------
|
|
|
|
%%% @doc The module <strong>{@module}</strong> is the PubSub node tree plugin that
|
|
%%% allow virtual nodes handling. This prevent storage of nodes.
|
|
%%% <p>PubSub node tree plugins are using the {@link gen_nodetree} behaviour.</p>
|
|
%%% <p>This plugin development is still a work in progress. Due to optimizations in
|
|
%%% mod_pubsub, this plugin can not work anymore without altering functioning.
|
|
%%% Please, send us comments, feedback and improvements.</p>
|
|
|
|
-module(nodetree_virtual).
|
|
-behaviour(gen_pubsub_nodetree).
|
|
-author('christophe.romain@process-one.net').
|
|
|
|
-include("pubsub.hrl").
|
|
|
|
-export([init/3, terminate/2, options/0, set_node/1,
|
|
get_node/3, get_node/2, get_node/1, get_nodes/2,
|
|
get_nodes/1, get_parentnodes/3, get_parentnodes_tree/3,
|
|
get_subnodes/3, get_subnodes_tree/3, create_node/6,
|
|
delete_node/2]).
|
|
|
|
init(_Host, _ServerHost, _Opts) ->
|
|
ok.
|
|
|
|
terminate(_Host, _ServerHost) ->
|
|
ok.
|
|
|
|
options() ->
|
|
[{virtual_tree, true}].
|
|
|
|
set_node(_Node) ->
|
|
ok.
|
|
|
|
get_node(Host, Node, _From) ->
|
|
get_node(Host, Node).
|
|
|
|
get_node(Host, Node) ->
|
|
Nidx = nodeidx(Host, Node),
|
|
node_record(Host, Node, Nidx).
|
|
|
|
get_node(Nidx) ->
|
|
{Host, Node} = nodeid(Nidx),
|
|
node_record(Host, Node, Nidx).
|
|
|
|
get_nodes(Host, _From) ->
|
|
get_nodes(Host).
|
|
|
|
get_nodes(_Host) ->
|
|
[].
|
|
|
|
get_parentnodes(_Host, _Node, _From) ->
|
|
[].
|
|
|
|
get_parentnodes_tree(Host, Node, From) ->
|
|
[{0, [get_node(Host, Node, From)]}].
|
|
|
|
get_subnodes(Host, Node, _From) ->
|
|
get_subnodes(Host, Node).
|
|
|
|
get_subnodes(_Host, _Node) ->
|
|
[].
|
|
|
|
get_subnodes_tree(Host, Node, _From) ->
|
|
get_subnodes_tree(Host, Node).
|
|
|
|
get_subnodes_tree(_Host, _Node) ->
|
|
[].
|
|
|
|
create_node(Host, Node, _Type, _Owner, _Options, _Parents) ->
|
|
{error, {virtual, nodeidx(Host, Node)}}.
|
|
|
|
delete_node(Host, Node) ->
|
|
[get_node(Host, Node)].
|
|
|
|
%% internal helper
|
|
|
|
node_record({U,S,R}, Node, Nidx) ->
|
|
Host = mod_pubsub:host(S),
|
|
Type = <<"pep">>,
|
|
Module = mod_pubsub:plugin(Host, Type),
|
|
#pubsub_node{nodeid = {{U,S,R},Node}, id = Nidx, type = Type,
|
|
owners = [{U,S,R}],
|
|
options = Module:options()};
|
|
node_record(Host, Node, Nidx) ->
|
|
[Type|_] = mod_pubsub:plugins(Host),
|
|
Module = mod_pubsub:plugin(Host, Type),
|
|
#pubsub_node{nodeid = {Host, Node}, id = Nidx, type = Type,
|
|
owners = [{<<"">>, Host, <<"">>}],
|
|
options = Module:options()}.
|
|
|
|
nodeidx({U,S,R}, Node) ->
|
|
JID = jid:encode(jid:make(U,S,R)),
|
|
<<JID/binary, ":", Node/binary>>;
|
|
nodeidx(Host, Node) ->
|
|
<<Host/binary, ":", Node/binary>>.
|
|
nodeid(Nidx) ->
|
|
[Head, Node] = binary:split(Nidx, <<":">>),
|
|
case jid:decode(Head) of
|
|
{jid,<<>>,Host,<<>>,_,_,_} -> {Host, Node};
|
|
{jid,U,S,R,_,_,_} -> {{U,S,R}, Node}
|
|
end.
|