150 lines
5.2 KiB
Erlang
150 lines
5.2 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 2006-2011, ProcessOne
|
|
%%% All Rights Reserved.''
|
|
%%% This software is copyright 2006-2011, ProcessOne.
|
|
%%%
|
|
%%%
|
|
%%% @copyright 2006-2011 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 PubSub node tree plugin that
|
|
%%% allow virtual nodes handling.
|
|
%%% <p>PubSub node tree plugins are using the {@link gen_nodetree} behaviour.</p>
|
|
%%% <p>The development of this plugin 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).
|
|
-author('christophe.romain@process-one.net').
|
|
|
|
-include("pubsub.hrl").
|
|
|
|
-behaviour(gen_pubsub_nodetree).
|
|
|
|
-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_subnodes/3,
|
|
get_subnodes_tree/3,
|
|
create_node/6,
|
|
delete_node/2
|
|
]).
|
|
|
|
%% ================
|
|
%% API definition
|
|
%% ================
|
|
|
|
%% @spec (Host, ServerHost, Opts) -> any()
|
|
%% Host = mod_pubsub:host()
|
|
%% ServerHost = host()
|
|
%% Opts = list()
|
|
%% @doc <p>Called during pubsub modules initialisation. Any pubsub plugin must
|
|
%% implement this function. It can return anything.</p>
|
|
%% <p>This function is mainly used to trigger the setup task necessary for the
|
|
%% plugin. It can be used for example by the developer to create the specific
|
|
%% module database schema if it does not exists yet.</p>
|
|
init(_Host, _ServerHost, _Opts) ->
|
|
ok.
|
|
terminate(_Host, _ServerHost) ->
|
|
ok.
|
|
|
|
%% @spec () -> [Option]
|
|
%% Option = mod_pubsub:nodetreeOption()
|
|
%% @doc <p>Returns the default pubsub node tree options.</p>
|
|
options() ->
|
|
[{virtual_tree, true}].
|
|
|
|
%% @spec (NodeRecord) -> ok | {error, Reason}
|
|
%% NodeRecord = mod_pubsub:pubsub_node()
|
|
%% @doc <p>No node record is stored on database. Just do nothing.</p>
|
|
set_node(_NodeRecord) ->
|
|
ok.
|
|
|
|
%% @spec (Host, Node, From) -> pubsubNode()
|
|
%% Host = mod_pubsub:host()
|
|
%% Node = node()
|
|
%% @doc <p>Virtual node tree does not handle a node database. Any node is considered
|
|
%% as existing. Node record contains default values.</p>
|
|
get_node(Host, Node, _From) ->
|
|
get_node(Host, Node).
|
|
get_node(Host, Node) ->
|
|
%% TODO : to fix idx
|
|
#pubsub_node{id = {Host, Node}, idx = {Host, Node}, owners = [{undefined, list_to_binary(Host), undefined}]}.
|
|
get_node({Host, _} = NodeId) ->
|
|
#pubsub_node{id = NodeId, idx = NodeId, owners = [{undefined, list_to_binary(Host), undefined}]}.
|
|
|
|
%% @spec (Host, From) -> [pubsubNode()]
|
|
%% Host = mod_pubsub:host() | ljid()
|
|
%% @doc <p>Virtual node tree does not handle a node database. Any node is considered
|
|
%% as existing. Nodes list can not be determined.</p>
|
|
get_nodes(Host, _From) ->
|
|
get_nodes(Host).
|
|
get_nodes(_Host) ->
|
|
[].
|
|
|
|
%% @spec (Host, Node, From) -> [pubsubNode()]
|
|
%% Host = mod_pubsub:host()
|
|
%% Node = node()
|
|
%% From = ljid()
|
|
%% @doc <p>Virtual node tree does not handle parent/child. Child list is empty.</p>
|
|
get_subnodes(Host, Node, _From) ->
|
|
get_subnodes(Host, Node).
|
|
get_subnodes(_Host, _Node) ->
|
|
[].
|
|
|
|
%% @spec (Host, Index, From) -> [pubsubNode()]
|
|
%% Host = mod_pubsub:host()
|
|
%% Node = node()
|
|
%% @doc <p>Virtual node tree does not handle parent/child. Child list is empty.</p>
|
|
get_subnodes_tree(Host, Node, _From) ->
|
|
get_subnodes_tree(Host, Node).
|
|
get_subnodes_tree(_Host, _Node) ->
|
|
[].
|
|
|
|
%% @spec (Host, Node, Type, Owner, Options, Parents) -> ok
|
|
%% Host = mod_pubsub:host()
|
|
%% Node = node()
|
|
%% Type = nodeType()
|
|
%% Owner = ljid()
|
|
%% Options = list()
|
|
%% @doc <p>No node record is stored on database. Any valid node
|
|
%% is considered as already created.</p>
|
|
%% <p>default allowed nodes: /home/host/user/any/node/name</p>
|
|
create_node(Host, Node, _Type, Owner, _Options, _Parents) ->
|
|
UserName = exmpp_jid:prep_node_as_list(Owner),
|
|
UserHost = exmpp_jid:prep_domain_as_list(Owner),
|
|
case Node of
|
|
["home", UserHost, UserName | _] -> {error, {virtual, {Host, Node}}};
|
|
_ -> {error, 'not-allowed'}
|
|
end.
|
|
|
|
%% @spec (Host, Node) -> [mod_pubsub:node()]
|
|
%% Host = mod_pubsub:host()
|
|
%% Node = node()
|
|
%% @doc <p>Virtual node tree does not handle parent/child.
|
|
%% node deletion just affects the corresponding node.</p>
|
|
delete_node(Host, Node) ->
|
|
[get_node(Host, Node)].
|