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%%% ==================================================================== |
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%%% ``The contents of this file are subject to the Erlang Public License, |
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%%% Version 1.1, (the "License"); you may not use this file except in |
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%%% compliance with the License. You should have received a copy of the |
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%%% Erlang Public License along with this software. If not, it can be |
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%%% retrieved via the world wide web at http://www.erlang.org/. |
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%%% |
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%%% |
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%%% Software distributed under the License is distributed on an "AS IS" |
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%%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See |
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%%% the License for the specific language governing rights and limitations |
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%%% under the License. |
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%%% |
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%%% |
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%%% The Initial Developer of the Original Code is ProcessOne. |
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%%% Portions created by ProcessOne are Copyright 2006-2015, ProcessOne |
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%%% All Rights Reserved.'' |
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%%% This software is copyright 2006-2015, ProcessOne. |
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%%% |
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%%% @copyright 2006-2015 ProcessOne |
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%%% @author Christophe Romain <christophe.romain@process-one.net> |
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%%% [http://www.process-one.net/] |
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%%% @end |
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%%% ==================================================================== |
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-module(node_hometree). |
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-behaviour(gen_pubsub_node). |
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-author('christophe.romain@process-one.net'). |
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-include("mongoose.hrl"). |
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-include("pubsub.hrl"). |
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-include("jlib.hrl"). |
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-export([based_on/0, init/3, terminate/2, options/0, features/0, |
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create_node_permission/6, node_to_path/1, |
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path_to_node/1]). |
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|
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947 |
based_on() -> node_flat. |
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init(Host, ServerHost, Opts) -> |
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node_flat:init(Host, ServerHost, Opts), |
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Owner = mod_pubsub:service_jid(Host), |
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spawn(fun() -> continue_init(Host, ServerHost, Owner) end), |
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ok. |
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terminate(Host, ServerHost) -> |
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node_flat:terminate(Host, ServerHost). |
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options() -> |
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node_flat:options(). |
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features() -> |
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node_flat:features(). |
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%% @doc Checks if the current user has the permission to create the requested node |
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%% <p>In hometree node, the permission is decided by the place in the |
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%% hierarchy where the user is creating the node. The access parameter is also |
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%% checked. This parameter depends on the value of the |
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%% <tt>access_createnode</tt> ACL value in ejabberd config file.</p> |
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%% <p>This function also check that node can be created as a children of its |
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%% parent node</p> |
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create_node_permission(Host, _ServerHost, _Node, _ParentNode, |
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#jid{ luser = <<>>, lserver = Host, lresource = <<>> }, _Access) -> |
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{result, true}; % pubsub service always allowed |
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create_node_permission(_Host, ServerHost, Node, _ParentNode, |
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#jid{ luser = LUser, lserver = LServer } = Owner, Access) -> |
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{ok, HostType} = mongoose_domain_api:get_domain_host_type(ServerHost), |
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case acl:match_rule(HostType, ServerHost, Access, Owner) of |
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allow -> |
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case node_to_path(Node) of |
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[<<"home">>, LServer, LUser | _] -> {result, true}; |
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_ -> {result, false} |
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end; |
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:-( |
_ -> {result, false} |
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end. |
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%% @doc <p>Return the path of the node.</p> |
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node_to_path(Node) -> |
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mongoose_bin:tokens(Node, <<"/">>). |
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path_to_node([]) -> <<>>; |
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path_to_node(Path) -> mongoose_bin:join([<<"">> | Path], <<"/">>). |
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continue_init(Host, ServerHost, Owner) -> |
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% we have to wait for mod_pubsub to be up and running before we try to use it |
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Proc = gen_mod:get_module_proc(ServerHost, ?PROCNAME), |
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case wait_for(Proc, 5) of |
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{ok, _} -> |
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mod_pubsub:create_node(Host, ServerHost, <<"/home">>, Owner, <<"hometree">>), |
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mod_pubsub:create_node(Host, ServerHost, <<"/home/", ServerHost/binary>>, Owner, <<"hometree">>); |
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{error, E} -> |
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error(E) |
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end. |
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wait_for(_Proc, 0) -> |
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?LOG_ERROR(#{what => plugin_init_failed, plugin => ?MODULE}), |
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{error, no_pubsub_proc}; |
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wait_for(Proc, Retries) -> |
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case whereis(Proc) of |
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undefined -> |
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timer:sleep(timer:seconds(1)), |
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wait_for(Proc, Retries - 1); |
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P -> |
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{ok, P} |
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end. |