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xmpp.chapril.org-ejabberd/src/mod_shared_roster_sql.erl

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%%%-------------------------------------------------------------------
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%%% File : mod_shared_roster_sql.erl
%%% Author : Evgeny Khramtsov <ekhramtsov@process-one.net>
%%% Created : 14 Apr 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%%
%%%
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%%% ejabberd, Copyright (C) 2002-2018 ProcessOne
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%%%
%%% 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_shared_roster_sql).
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-compile([{parse_transform, ejabberd_sql_pt}]).
-behaviour(mod_shared_roster).
%% API
-export([init/2, list_groups/1, groups_with_opts/1, create_group/3,
delete_group/2, get_group_opts/2, set_group_opts/3,
get_user_groups/2, get_group_explicit_users/2,
get_user_displayed_groups/3, is_user_in_group/3,
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add_user_to_group/3, remove_user_from_group/3, import/3,
export/1]).
-include("jid.hrl").
-include("mod_roster.hrl").
-include("mod_shared_roster.hrl").
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-include("ejabberd_sql_pt.hrl").
%%%===================================================================
%%% API
%%%===================================================================
init(_Host, _Opts) ->
ok.
list_groups(Host) ->
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case ejabberd_sql:sql_query(
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Host,
?SQL("select @(name)s from sr_group where %(Host)H")) of
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{selected, Rs} -> [G || {G} <- Rs];
_ -> []
end.
groups_with_opts(Host) ->
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case ejabberd_sql:sql_query(
Host,
?SQL("select @(name)s, @(opts)s from sr_group where %(Host)H"))
of
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{selected, Rs} ->
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[{G, mod_shared_roster:opts_to_binary(ejabberd_sql:decode_term(Opts))}
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|| {G, Opts} <- Rs];
_ -> []
end.
create_group(Host, Group, Opts) ->
SOpts = misc:term_to_expr(Opts),
F = fun () ->
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?SQL_UPSERT_T(
"sr_group",
["!name=%(Group)s",
"!server_host=%(Host)s",
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"opts=%(SOpts)s"])
end,
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ejabberd_sql:sql_transaction(Host, F).
delete_group(Host, Group) ->
F = fun () ->
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ejabberd_sql:sql_query_t(
?SQL("delete from sr_group where name=%(Group)s and %(Host)H")),
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ejabberd_sql:sql_query_t(
?SQL("delete from sr_user where grp=%(Group)s and %(Host)H"))
end,
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case ejabberd_sql:sql_transaction(Host, F) of
{atomic,{updated,_}} -> {atomic, ok};
Res -> Res
end.
get_group_opts(Host, Group) ->
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case catch ejabberd_sql:sql_query(
Host,
?SQL("select @(opts)s from sr_group"
" where name=%(Group)s and %(Host)H")) of
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{selected, [{SOpts}]} ->
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mod_shared_roster:opts_to_binary(ejabberd_sql:decode_term(SOpts));
_ -> error
end.
set_group_opts(Host, Group, Opts) ->
SOpts = misc:term_to_expr(Opts),
F = fun () ->
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?SQL_UPSERT_T(
"sr_group",
["!name=%(Group)s",
"!server_host=%(Host)s",
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"opts=%(SOpts)s"])
end,
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ejabberd_sql:sql_transaction(Host, F).
get_user_groups(US, Host) ->
SJID = make_jid_s(US),
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case catch ejabberd_sql:sql_query(
Host,
?SQL("select @(grp)s from sr_user"
" where jid=%(SJID)s and %(Host)H")) of
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{selected, Rs} -> [G || {G} <- Rs];
_ -> []
end.
get_group_explicit_users(Host, Group) ->
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case catch ejabberd_sql:sql_query(
Host,
?SQL("select @(jid)s from sr_user"
" where grp=%(Group)s and %(Host)H")) of
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{selected, Rs} ->
lists:map(
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fun({JID}) ->
{U, S, _} = jid:tolower(jid:decode(JID)),
{U, S}
end, Rs);
_ ->
[]
end.
get_user_displayed_groups(LUser, LServer, GroupsOpts) ->
SJID = make_jid_s(LUser, LServer),
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case catch ejabberd_sql:sql_query(
LServer,
?SQL("select @(grp)s from sr_user"
" where jid=%(SJID)s and %(LServer)H")) of
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{selected, Rs} ->
[{Group, proplists:get_value(Group, GroupsOpts, [])}
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|| {Group} <- Rs];
_ -> []
end.
is_user_in_group(US, Group, Host) ->
SJID = make_jid_s(US),
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case catch ejabberd_sql:sql_query(
Host,
?SQL("select @(jid)s from sr_user where jid=%(SJID)s"
" and %(Host)H and grp=%(Group)s")) of
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{selected, []} -> false;
_ -> true
end.
add_user_to_group(Host, US, Group) ->
SJID = make_jid_s(US),
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ejabberd_sql:sql_query(
Host,
?SQL_INSERT(
"sr_user",
["jid=%(SJID)s",
"server_host=%(Host)s",
"grp=%(Group)s"])).
remove_user_from_group(Host, US, Group) ->
SJID = make_jid_s(US),
F = fun () ->
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ejabberd_sql:sql_query_t(
?SQL("delete from sr_user where jid=%(SJID)s and %(Host)H"
" and grp=%(Group)s")),
ok
end,
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ejabberd_sql:sql_transaction(Host, F).
export(_Server) ->
[{sr_group,
fun(Host, #sr_group{group_host = {Group, LServer}, opts = Opts})
when LServer == Host ->
SOpts = misc:term_to_expr(Opts),
[?SQL("delete from sr_group where name=%(Group)s and %(Host)H;"),
?SQL_INSERT(
"sr_group",
["name=%(Group)s",
"server_host=%(Host)s",
"opts=%(SOpts)s"])];
(_Host, _R) ->
[]
end},
{sr_user,
fun(Host, #sr_user{us = {U, S}, group_host = {Group, LServer}})
when LServer == Host ->
SJID = make_jid_s(U, S),
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[?SQL("select @(jid)s from sr_user where jid=%(SJID)s"
" and %(Host)H and grp=%(Group)s;"),
?SQL_INSERT(
"sr_user",
["jid=%(SJID)s",
"server_host=%(Host)s",
"grp=%(Group)s"])];
(_Host, _R) ->
[]
end}].
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import(_, _, _) ->
ok.
%%%===================================================================
%%% Internal functions
%%%===================================================================
make_jid_s(U, S) ->
jid:encode(jid:tolower(jid:make(U, S))).
make_jid_s({U, S}) -> make_jid_s(U, S).