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%%%-------------------------------------------------------------------
%%% File : mod_private_sql.erl
%%% Author : Evgeny Khramtsov <ekhramtsov@process-one.net>
%%% Created : 13 Apr 2016 by Evgeny Khramtsov <ekhramtsov@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.
%%%
%%%----------------------------------------------------------------------
-module(mod_private_sql).
-behaviour(mod_private).
%% API
-export([init/2, set_data/3, get_data/3, get_all_data/2, del_data/2,
import/3, export/1]).
-include("xmpp.hrl").
-include("mod_private.hrl").
-include("logger.hrl").
%%%===================================================================
%%% API
%%%===================================================================
init(_Host, _Opts) ->
ok.
set_data(LUser, LServer, Data) ->
F = fun() ->
lists:foreach(
fun({XMLNS, El}) ->
SData = fxml:element_to_binary(El),
sql_queries:set_private_data(
LServer, LUser, XMLNS, SData)
end, Data)
end,
case ejabberd_sql:sql_transaction(LServer, F) of
{atomic, ok} ->
ok;
_ ->
{error, db_failure}
end.
get_data(LUser, LServer, XMLNS) ->
case sql_queries:get_private_data(LServer, LUser, XMLNS) of
{selected, [{SData}]} ->
parse_element(LUser, LServer, SData);
{selected, []} ->
error;
_ ->
{error, db_failure}
end.
get_all_data(LUser, LServer) ->
case catch sql_queries:get_private_data(LServer, LUser) of
{selected, []} ->
error;
{selected, Res} ->
{ok, lists:flatmap(
fun({_, SData}) ->
case parse_element(LUser, LServer, SData) of
{ok, El} -> [El];
error -> []
end
end, Res)};
_ ->
{error, db_failure}
end.
del_data(LUser, LServer) ->
case sql_queries:del_user_private_storage(LServer, LUser) of
{updated, _} ->
ok;
_ ->
{error, db_failure}
end.
export(_Server) ->
[{private_storage,
fun(Host, #private_storage{usns = {LUser, LServer, XMLNS},
xml = Data})
when LServer == Host ->
SData = fxml:element_to_binary(Data),
sql_queries:set_private_data_sql(LUser, XMLNS, SData);
(_Host, _R) ->
[]
end}].
import(_, _, _) ->
ok.
%%%===================================================================
%%% Internal functions
%%%===================================================================
parse_element(LUser, LServer, XML) ->
case fxml_stream:parse_element(XML) of
El when is_record(El, xmlel) ->
{ok, El};
_ ->
?ERROR_MSG("malformed XML element in SQL table "
"'private_storage' for user ~s@~s: ~s",
[LUser, LServer, XML]),
error
end.
|
