2016-04-14 13:16:32 +02:00
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%%%-------------------------------------------------------------------
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2016-12-27 10:44:07 +01:00
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%%% File : mod_privacy_mnesia.erl
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%%% Author : Evgeny Khramtsov <ekhramtsov@process-one.net>
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2016-04-14 13:16:32 +02:00
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%%% Created : 14 Apr 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
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2016-12-27 10:44:07 +01:00
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%%%
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%%%
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2020-01-28 13:34:02 +01:00
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%%% ejabberd, Copyright (C) 2002-2020 ProcessOne
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2016-12-27 10:44:07 +01:00
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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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2016-04-14 13:16:32 +02:00
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-module(mod_privacy_mnesia).
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-behaviour(mod_privacy).
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%% API
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2017-05-20 21:36:32 +02:00
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-export([init/2, set_default/3, unset_default/2, set_lists/1,
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set_list/4, get_lists/2, get_list/3, remove_lists/2,
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remove_list/3, use_cache/1, import/1]).
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2017-04-23 15:37:58 +02:00
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-export([need_transform/1, transform/1]).
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2016-04-14 13:16:32 +02:00
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2016-07-26 10:29:17 +02:00
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-include("xmpp.hrl").
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2016-04-14 13:16:32 +02:00
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-include("mod_privacy.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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2016-11-30 11:09:17 +01:00
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ejabberd_mnesia:create(?MODULE, privacy,
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2017-05-20 21:36:32 +02:00
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[{disc_only_copies, [node()]},
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{attributes, record_info(fields, privacy)}]).
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2017-05-20 21:36:32 +02:00
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use_cache(Host) ->
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case mnesia:table_info(privacy, storage_type) of
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disc_only_copies ->
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2019-06-14 11:33:26 +02:00
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mod_privacy_opt:use_cache(Host);
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2017-05-20 21:36:32 +02:00
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_ ->
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false
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2016-04-14 13:16:32 +02:00
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end.
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2017-05-20 21:36:32 +02:00
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unset_default(LUser, LServer) ->
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2016-07-18 14:01:32 +02:00
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F = fun () ->
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case mnesia:read({privacy, {LUser, LServer}}) of
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[] -> ok;
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[R] -> mnesia:write(R#privacy{default = none})
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end
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end,
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2017-05-20 21:36:32 +02:00
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transaction(F).
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set_default(LUser, LServer, Name) ->
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2016-04-14 13:16:32 +02:00
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F = fun () ->
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case mnesia:read({privacy, {LUser, LServer}}) of
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2017-05-20 21:36:32 +02:00
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[] ->
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{error, notfound};
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2016-04-14 13:16:32 +02:00
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[#privacy{lists = Lists} = P] ->
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case lists:keymember(Name, 1, Lists) of
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true ->
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mnesia:write(P#privacy{default = Name,
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2017-05-20 21:36:32 +02:00
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lists = Lists});
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false ->
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{error, notfound}
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2016-04-14 13:16:32 +02:00
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end
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end
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end,
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2017-05-20 21:36:32 +02:00
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transaction(F).
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2016-04-14 13:16:32 +02:00
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2017-05-20 21:36:32 +02:00
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remove_list(LUser, LServer, Name) ->
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2016-04-14 13:16:32 +02:00
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F = fun () ->
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case mnesia:read({privacy, {LUser, LServer}}) of
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2017-05-20 21:36:32 +02:00
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[] ->
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{error, notfound};
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[#privacy{default = Default, lists = Lists} = P] ->
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if Name == Default ->
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{error, conflict};
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true ->
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NewLists = lists:keydelete(Name, 1, Lists),
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mnesia:write(P#privacy{lists = NewLists})
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end
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2016-04-14 13:16:32 +02:00
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end
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end,
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2017-05-20 21:36:32 +02:00
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transaction(F).
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2017-05-20 21:36:32 +02:00
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set_lists(Privacy) ->
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mnesia:dirty_write(Privacy).
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set_list(LUser, LServer, Name, List) ->
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2016-04-14 13:16:32 +02:00
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F = fun () ->
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case mnesia:wread({privacy, {LUser, LServer}}) of
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2017-05-20 21:36:32 +02:00
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[] ->
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NewLists = [{Name, List}],
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mnesia:write(#privacy{us = {LUser, LServer},
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lists = NewLists});
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[#privacy{lists = Lists} = P] ->
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NewLists1 = lists:keydelete(Name, 1, Lists),
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NewLists = [{Name, List} | NewLists1],
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mnesia:write(P#privacy{lists = NewLists})
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2016-04-14 13:16:32 +02:00
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end
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end,
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2017-05-20 21:36:32 +02:00
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transaction(F).
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get_list(LUser, LServer, Name) ->
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case mnesia:dirty_read(privacy, {LUser, LServer}) of
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[#privacy{default = Default, lists = Lists}] when Name == default ->
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case lists:keyfind(Default, 1, Lists) of
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{_, List} -> {ok, {Default, List}};
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false -> error
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end;
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[#privacy{lists = Lists}] ->
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case lists:keyfind(Name, 1, Lists) of
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{_, List} -> {ok, {Name, List}};
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false -> error
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end;
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[] ->
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error
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2016-04-14 13:16:32 +02:00
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end.
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2017-05-20 21:36:32 +02:00
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get_lists(LUser, LServer) ->
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case mnesia:dirty_read(privacy, {LUser, LServer}) of
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2016-04-14 13:16:32 +02:00
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[#privacy{} = P] ->
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{ok, P};
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_ ->
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error
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end.
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2017-05-20 21:36:32 +02:00
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remove_lists(LUser, LServer) ->
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F = fun () -> mnesia:delete({privacy, {LUser, LServer}}) end,
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2017-05-20 21:36:32 +02:00
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transaction(F).
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2016-04-14 13:16:32 +02:00
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2016-11-22 16:01:08 +01:00
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import(#privacy{} = P) ->
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2016-04-14 13:16:32 +02:00
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mnesia:dirty_write(P).
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2019-06-14 11:33:26 +02:00
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need_transform({privacy, {U, S}, _, _}) when is_list(U) orelse is_list(S) ->
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2017-04-23 15:37:58 +02:00
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?INFO_MSG("Mnesia table 'privacy' will be converted to binary", []),
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true;
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need_transform(_) ->
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false.
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transform(#privacy{us = {U, S}, default = Def, lists = Lists} = R) ->
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NewLists = lists:map(
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fun({Name, Ls}) ->
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NewLs = lists:map(
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fun(#listitem{value = Val} = L) ->
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NewVal = case Val of
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2016-04-14 13:16:32 +02:00
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{LU, LS, LR} ->
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{iolist_to_binary(LU),
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iolist_to_binary(LS),
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iolist_to_binary(LR)};
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none -> none;
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both -> both;
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from -> from;
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to -> to;
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_ -> iolist_to_binary(Val)
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end,
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2017-04-23 15:37:58 +02:00
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L#listitem{value = NewVal}
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end, Ls),
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{iolist_to_binary(Name), NewLs}
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end, Lists),
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NewDef = case Def of
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none -> none;
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_ -> iolist_to_binary(Def)
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end,
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NewUS = {iolist_to_binary(U), iolist_to_binary(S)},
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R#privacy{us = NewUS, default = NewDef, lists = NewLists}.
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%%%===================================================================
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%%% Internal functions
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%%%===================================================================
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2017-05-20 21:36:32 +02:00
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transaction(F) ->
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case mnesia:transaction(F) of
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{atomic, Result} ->
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Result;
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{aborted, Reason} ->
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?ERROR_MSG("Mnesia transaction failed: ~p", [Reason]),
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{error, db_failure}
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end.
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