141 lines
4.2 KiB
Erlang
141 lines
4.2 KiB
Erlang
%%%-------------------------------------------------------------------
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%%% File : mod_private_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) 2002-2020 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_private_sql).
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-behaviour(mod_private).
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%% API
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-export([init/2, set_data/3, get_data/3, get_all_data/2, del_data/2,
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import/3, export/1]).
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-include("xmpp.hrl").
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-include("mod_private.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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set_data(LUser, LServer, Data) ->
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F = fun() ->
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lists:foreach(
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fun({XMLNS, El}) ->
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SData = fxml:element_to_binary(El),
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?SQL_UPSERT_T(
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"private_storage",
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["!username=%(LUser)s",
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"!server_host=%(LServer)s",
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"!namespace=%(XMLNS)s",
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"data=%(SData)s"])
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end, Data)
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end,
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case ejabberd_sql:sql_transaction(LServer, F) of
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{atomic, ok} ->
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ok;
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_ ->
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{error, db_failure}
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end.
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get_data(LUser, LServer, XMLNS) ->
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case ejabberd_sql:sql_query(
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LServer,
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?SQL("select @(data)s from private_storage"
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" where username=%(LUser)s and %(LServer)H"
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" and namespace=%(XMLNS)s")) of
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{selected, [{SData}]} ->
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parse_element(LUser, LServer, SData);
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{selected, []} ->
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error;
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_ ->
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{error, db_failure}
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end.
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get_all_data(LUser, LServer) ->
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case ejabberd_sql:sql_query(
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LServer,
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?SQL("select @(namespace)s, @(data)s from private_storage"
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" where username=%(LUser)s and %(LServer)H")) of
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{selected, []} ->
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error;
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{selected, Res} ->
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{ok, lists:flatmap(
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fun({_, SData}) ->
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case parse_element(LUser, LServer, SData) of
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{ok, El} -> [El];
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error -> []
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end
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end, Res)};
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_ ->
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{error, db_failure}
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end.
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del_data(LUser, LServer) ->
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case ejabberd_sql:sql_query(
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LServer,
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?SQL("delete from private_storage"
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" where username=%(LUser)s and %(LServer)H")) of
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{updated, _} ->
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ok;
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_ ->
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{error, db_failure}
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end.
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export(_Server) ->
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[{private_storage,
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fun(Host, #private_storage{usns = {LUser, LServer, XMLNS},
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xml = Data})
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when LServer == Host ->
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SData = fxml:element_to_binary(Data),
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[?SQL("delete from private_storage where"
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" username=%(LUser)s and %(LServer)H and namespace=%(XMLNS)s;"),
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?SQL_INSERT(
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"private_storage",
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["username=%(LUser)s",
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"server_host=%(LServer)s",
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"namespace=%(XMLNS)s",
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"data=%(SData)s"])];
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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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parse_element(LUser, LServer, XML) ->
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case fxml_stream:parse_element(XML) of
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El when is_record(El, xmlel) ->
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{ok, El};
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_ ->
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?ERROR_MSG("Malformed XML element in SQL table "
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"'private_storage' for user ~ts@~ts: ~ts",
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[LUser, LServer, XML]),
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error
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end.
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