mirror of
https://github.com/processone/ejabberd.git
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96 lines
3.1 KiB
Erlang
96 lines
3.1 KiB
Erlang
%%%-------------------------------------------------------------------
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%%% File : mod_caps_sql.erl
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%%% Author : Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%% Created : 13 Apr 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2018 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_caps_sql).
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-behaviour(mod_caps).
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-compile([{parse_transform, ejabberd_sql_pt}]).
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%% API
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-export([init/2, caps_read/2, caps_write/3, export/1, import/3]).
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-include("mod_caps.hrl").
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-include("ejabberd_sql_pt.hrl").
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-include("logger.hrl").
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%%%===================================================================
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%%% API
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%%%===================================================================
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init(_Host, _Opts) ->
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ok.
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caps_read(LServer, {Node, SubNode}) ->
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case ejabberd_sql:sql_query(
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LServer,
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?SQL("select @(feature)s from caps_features where"
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" node=%(Node)s and subnode=%(SubNode)s")) of
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{selected, [{H}|_] = Fs} ->
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case catch binary_to_integer(H) of
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Int when is_integer(Int), Int>=0 ->
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{ok, Int};
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_ ->
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{ok, [F || {F} <- Fs]}
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end;
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_ ->
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error
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end.
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caps_write(LServer, NodePair, Features) ->
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case ejabberd_sql:sql_transaction(
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LServer,
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sql_write_features_t(NodePair, Features)) of
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{atomic, _} ->
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ok;
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{aborted, _Reason} ->
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{error, db_failure}
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end.
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export(_Server) ->
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[{caps_features,
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fun(_Host, #caps_features{node_pair = NodePair,
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features = Features}) ->
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sql_write_features_t(NodePair, Features);
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(_Host, _R) ->
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[]
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end}].
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import(_, _, _) ->
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ok.
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%%%===================================================================
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%%% Internal functions
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%%%===================================================================
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sql_write_features_t({Node, SubNode}, Features) ->
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NewFeatures = if is_integer(Features) ->
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[integer_to_binary(Features)];
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true ->
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Features
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end,
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[?SQL("delete from caps_features where node=%(Node)s"
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" and subnode=%(SubNode)s;") |
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[?SQL("insert into caps_features(node, subnode, feature)"
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" values (%(Node)s, %(SubNode)s, %(F)s);") || F <- NewFeatures]].
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