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80 lines
2.6 KiB
Erlang
80 lines
2.6 KiB
Erlang
%%%-------------------------------------------------------------------
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%%% File : mod_carboncopy_mnesia.erl
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%%% Author : Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%% Created : 15 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_carboncopy_mnesia).
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-behaviour(mod_carboncopy).
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%% API
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-export([init/2, enable/4, disable/3, list/2, use_cache/1]).
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-include("mod_carboncopy.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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Fields = record_info(fields, carboncopy),
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try mnesia:table_info(carboncopy, attributes) of
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Fields ->
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ok;
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_ ->
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%% recreate..
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mnesia:delete_table(carboncopy)
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catch _:_Error ->
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%% probably table don't exist
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ok
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end,
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ejabberd_mnesia:create(?MODULE, carboncopy,
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[{ram_copies, [node()]},
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{attributes, record_info(fields, carboncopy)},
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{type, bag}]).
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enable(LUser, LServer, LResource, NS) ->
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mnesia:dirty_write(
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#carboncopy{us = {LUser, LServer},
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resource = LResource,
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version = NS}).
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disable(LUser, LServer, LResource) ->
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ToDelete = mnesia:dirty_match_object(
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#carboncopy{us = {LUser, LServer},
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resource = LResource,
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_ = '_'}),
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lists:foreach(fun mnesia:dirty_delete_object/1, ToDelete).
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list(LUser, LServer) ->
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{ok, mnesia:dirty_select(
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carboncopy,
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[{#carboncopy{us = {LUser, LServer}, resource = '$2',
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version = '$3', node = '$4'},
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[], [{{'$2','$3','$4'}}]}])}.
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use_cache(_LServer) ->
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false.
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%%%===================================================================
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%%% Internal functions
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%%%===================================================================
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