mirror of
https://github.com/processone/ejabberd.git
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293 lines
10 KiB
Erlang
293 lines
10 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : mod_adhoc.erl
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%%% Author : Magnus Henoch <henoch@dtek.chalmers.se>
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%%% Purpose : Handle incoming ad-doc requests (XEP-0050)
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%%% Created : 15 Nov 2005 by Magnus Henoch <henoch@dtek.chalmers.se>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2017 ProcessOne
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%%%
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%%% This program is free software; you can redistribute it and/or
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%%% modify it under the terms of the GNU General Public License as
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%%% published by the Free Software Foundation; either version 2 of the
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%%% License, or (at your option) any later version.
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%%%
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%%% This program is distributed in the hope that it will be useful,
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%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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%%% General Public License for more details.
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%%%
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%%% You should have received a copy of the GNU General Public License along
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%%% with this program; if not, write to the Free Software Foundation, Inc.,
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%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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%%%
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%%%----------------------------------------------------------------------
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-module(mod_adhoc).
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-author('henoch@dtek.chalmers.se').
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-protocol({xep, 50, '1.2'}).
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-behaviour(gen_mod).
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-export([start/2, stop/1, reload/3, process_local_iq/1,
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process_sm_iq/1, get_local_commands/5,
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get_local_identity/5, get_local_features/5,
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get_sm_commands/5, get_sm_identity/5, get_sm_features/5,
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ping_item/4, ping_command/4, mod_opt_type/1, depends/2]).
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-include("ejabberd.hrl").
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-include("logger.hrl").
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-include("xmpp.hrl").
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start(Host, Opts) ->
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IQDisc = gen_mod:get_opt(iqdisc, Opts, fun gen_iq_handler:check_type/1,
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one_queue),
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gen_iq_handler:add_iq_handler(ejabberd_local, Host,
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?NS_COMMANDS, ?MODULE, process_local_iq,
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IQDisc),
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gen_iq_handler:add_iq_handler(ejabberd_sm, Host,
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?NS_COMMANDS, ?MODULE, process_sm_iq, IQDisc),
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ejabberd_hooks:add(disco_local_identity, Host, ?MODULE,
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get_local_identity, 99),
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ejabberd_hooks:add(disco_local_features, Host, ?MODULE,
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get_local_features, 99),
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ejabberd_hooks:add(disco_local_items, Host, ?MODULE,
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get_local_commands, 99),
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ejabberd_hooks:add(disco_sm_identity, Host, ?MODULE,
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get_sm_identity, 99),
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ejabberd_hooks:add(disco_sm_features, Host, ?MODULE,
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get_sm_features, 99),
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ejabberd_hooks:add(disco_sm_items, Host, ?MODULE,
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get_sm_commands, 99),
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ejabberd_hooks:add(adhoc_local_items, Host, ?MODULE,
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ping_item, 100),
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ejabberd_hooks:add(adhoc_local_commands, Host, ?MODULE,
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ping_command, 100).
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stop(Host) ->
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ejabberd_hooks:delete(adhoc_local_commands, Host,
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?MODULE, ping_command, 100),
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ejabberd_hooks:delete(adhoc_local_items, Host, ?MODULE,
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ping_item, 100),
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ejabberd_hooks:delete(disco_sm_items, Host, ?MODULE,
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get_sm_commands, 99),
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ejabberd_hooks:delete(disco_sm_features, Host, ?MODULE,
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get_sm_features, 99),
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ejabberd_hooks:delete(disco_sm_identity, Host, ?MODULE,
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get_sm_identity, 99),
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ejabberd_hooks:delete(disco_local_items, Host, ?MODULE,
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get_local_commands, 99),
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ejabberd_hooks:delete(disco_local_features, Host,
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?MODULE, get_local_features, 99),
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ejabberd_hooks:delete(disco_local_identity, Host,
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?MODULE, get_local_identity, 99),
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gen_iq_handler:remove_iq_handler(ejabberd_sm, Host,
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?NS_COMMANDS),
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gen_iq_handler:remove_iq_handler(ejabberd_local, Host,
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?NS_COMMANDS).
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reload(Host, NewOpts, OldOpts) ->
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case gen_mod:is_equal_opt(iqdisc, NewOpts, OldOpts,
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fun gen_iq_handler:check_type/1,
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one_queue) of
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{false, IQDisc, _} ->
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gen_iq_handler:add_iq_handler(ejabberd_local, Host, ?NS_COMMANDS,
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?MODULE, process_local_iq, IQDisc),
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gen_iq_handler:add_iq_handler(ejabberd_sm, Host, ?NS_COMMANDS,
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?MODULE, process_sm_iq, IQDisc);
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true ->
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ok
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end.
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%-------------------------------------------------------------------------
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get_local_commands(Acc, _From,
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#jid{server = Server, lserver = LServer} = _To, <<"">>,
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Lang) ->
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Display = gen_mod:get_module_opt(LServer, ?MODULE,
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report_commands_node,
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fun(B) when is_boolean(B) -> B end,
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false),
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case Display of
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false -> Acc;
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_ ->
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Items = case Acc of
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{result, I} -> I;
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_ -> []
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end,
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Nodes = [#disco_item{jid = jid:make(Server),
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node = ?NS_COMMANDS,
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name = translate:translate(Lang, <<"Commands">>)}],
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{result, Items ++ Nodes}
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end;
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get_local_commands(_Acc, From,
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#jid{lserver = LServer} = To, ?NS_COMMANDS, Lang) ->
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ejabberd_hooks:run_fold(adhoc_local_items, LServer,
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{result, []}, [From, To, Lang]);
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get_local_commands(_Acc, _From, _To, <<"ping">>,
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_Lang) ->
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{result, []};
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get_local_commands(Acc, _From, _To, _Node, _Lang) ->
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Acc.
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%-------------------------------------------------------------------------
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get_sm_commands(Acc, _From,
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#jid{lserver = LServer} = To, <<"">>, Lang) ->
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Display = gen_mod:get_module_opt(LServer, ?MODULE,
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report_commands_node,
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fun(B) when is_boolean(B) -> B end,
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false),
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case Display of
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false -> Acc;
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_ ->
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Items = case Acc of
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{result, I} -> I;
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_ -> []
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end,
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Nodes = [#disco_item{jid = To,
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node = ?NS_COMMANDS,
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name = translate:translate(Lang, <<"Commands">>)}],
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{result, Items ++ Nodes}
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end;
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get_sm_commands(_Acc, From,
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#jid{lserver = LServer} = To, ?NS_COMMANDS, Lang) ->
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ejabberd_hooks:run_fold(adhoc_sm_items, LServer,
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{result, []}, [From, To, Lang]);
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get_sm_commands(Acc, _From, _To, _Node, _Lang) -> Acc.
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%-------------------------------------------------------------------------
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%% On disco info request to the ad-hoc node, return automation/command-list.
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get_local_identity(Acc, _From, _To, ?NS_COMMANDS,
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Lang) ->
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[#identity{category = <<"automation">>,
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type = <<"command-list">>,
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name = translate:translate(Lang, <<"Commands">>)}
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| Acc];
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get_local_identity(Acc, _From, _To, <<"ping">>, Lang) ->
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[#identity{category = <<"automation">>,
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type = <<"command-node">>,
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name = translate:translate(Lang, <<"Ping">>)}
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| Acc];
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get_local_identity(Acc, _From, _To, _Node, _Lang) ->
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Acc.
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%-------------------------------------------------------------------------
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%% On disco info request to the ad-hoc node, return automation/command-list.
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get_sm_identity(Acc, _From, _To, ?NS_COMMANDS, Lang) ->
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[#identity{category = <<"automation">>,
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type = <<"command-list">>,
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name = translate:translate(Lang, <<"Commands">>)}
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| Acc];
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get_sm_identity(Acc, _From, _To, _Node, _Lang) -> Acc.
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%-------------------------------------------------------------------------
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-spec get_local_features({error, stanza_error()} | {result, [binary()]} | empty,
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jid(), jid(), binary(), binary()) ->
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{error, stanza_error()} | {result, [binary()]} | empty.
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get_local_features(Acc, _From, _To, <<"">>, _Lang) ->
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Feats = case Acc of
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{result, I} -> I;
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_ -> []
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end,
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{result, Feats ++ [?NS_COMMANDS]};
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get_local_features(_Acc, _From, _To, ?NS_COMMANDS,
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_Lang) ->
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{result, []};
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get_local_features(_Acc, _From, _To, <<"ping">>,
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_Lang) ->
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{result, [?NS_COMMANDS]};
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get_local_features(Acc, _From, _To, _Node, _Lang) ->
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Acc.
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%-------------------------------------------------------------------------
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get_sm_features(Acc, _From, _To, <<"">>, _Lang) ->
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Feats = case Acc of
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{result, I} -> I;
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_ -> []
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end,
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{result, Feats ++ [?NS_COMMANDS]};
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get_sm_features(_Acc, _From, _To, ?NS_COMMANDS,
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_Lang) ->
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{result, []};
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get_sm_features(Acc, _From, _To, _Node, _Lang) -> Acc.
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%-------------------------------------------------------------------------
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process_local_iq(IQ) ->
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process_adhoc_request(IQ, local).
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process_sm_iq(IQ) ->
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process_adhoc_request(IQ, sm).
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process_adhoc_request(#iq{from = From, to = To,
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type = set, lang = Lang,
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sub_els = [#adhoc_command{} = SubEl]} = IQ, Type) ->
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Host = To#jid.lserver,
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Res = case Type of
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local ->
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ejabberd_hooks:run_fold(adhoc_local_commands, Host, empty,
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[From, To, SubEl]);
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sm ->
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ejabberd_hooks:run_fold(adhoc_sm_commands, Host, empty,
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[From, To, SubEl])
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end,
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case Res of
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ignore ->
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ignore;
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empty ->
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Txt = <<"No hook has processed this command">>,
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xmpp:make_error(IQ, xmpp:err_item_not_found(Txt, Lang));
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{error, Error} ->
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xmpp:make_error(IQ, Error);
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Command ->
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xmpp:make_iq_result(IQ, Command)
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end;
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process_adhoc_request(#iq{} = IQ, _Hooks) ->
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xmpp:make_error(IQ, xmpp:err_bad_request()).
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-spec ping_item(empty | {error, stanza_error()} | {result, [disco_item()]},
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jid(), jid(), binary()) -> {result, [disco_item()]}.
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ping_item(Acc, _From, #jid{server = Server} = _To,
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Lang) ->
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Items = case Acc of
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{result, I} -> I;
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_ -> []
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end,
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Nodes = [#disco_item{jid = jid:make(Server),
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node = <<"ping">>,
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name = translate:translate(Lang, <<"Ping">>)}],
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{result, Items ++ Nodes}.
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-spec ping_command(adhoc_command(), jid(), jid(), adhoc_command()) ->
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adhoc_command() | {error, stanza_error()}.
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ping_command(_Acc, _From, _To,
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#adhoc_command{lang = Lang, node = <<"ping">>,
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action = Action} = Request) ->
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if Action == execute ->
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xmpp_util:make_adhoc_response(
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Request,
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#adhoc_command{
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status = completed,
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notes = [#adhoc_note{
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type = info,
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data = translate:translate(Lang, <<"Pong">>)}]});
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true ->
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Txt = <<"Incorrect value of 'action' attribute">>,
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{error, xmpp:err_bad_request(Txt, Lang)}
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end;
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ping_command(Acc, _From, _To, _Request) -> Acc.
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depends(_Host, _Opts) ->
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[].
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mod_opt_type(iqdisc) -> fun gen_iq_handler:check_type/1;
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mod_opt_type(report_commands_node) ->
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fun (B) when is_boolean(B) -> B end;
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mod_opt_type(_) -> [iqdisc, report_commands_node].
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