133 lines
3.8 KiB
Erlang
133 lines
3.8 KiB
Erlang
%%%-------------------------------------------------------------------
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%%% @author Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%% @copyright (C) 2016, Evgeny Khramtsov
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%%% @doc
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%%%
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%%% @end
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%%% Created : 13 Apr 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%%-------------------------------------------------------------------
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-module(mod_announce_sql).
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-behaviour(mod_announce).
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%% API
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-export([init/2, set_motd_users/2, set_motd/2, delete_motd/1,
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get_motd/1, is_motd_user/2, set_motd_user/2, import/1,
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import/2, export/1]).
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-include("jlib.hrl").
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-include("mod_announce.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_motd_users(LServer, USRs) ->
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F = fun() ->
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lists:foreach(
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fun({U, _S, _R}) ->
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Username = ejabberd_sql:escape(U),
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sql_queries:update_t(
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<<"motd">>,
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[<<"username">>, <<"xml">>],
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[Username, <<"">>],
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[<<"username='">>, Username, <<"'">>])
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end, USRs)
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end,
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ejabberd_sql:sql_transaction(LServer, F).
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set_motd(LServer, Packet) ->
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XML = ejabberd_sql:escape(fxml:element_to_binary(Packet)),
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F = fun() ->
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sql_queries:update_t(
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<<"motd">>,
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[<<"username">>, <<"xml">>],
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[<<"">>, XML],
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[<<"username=''">>])
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end,
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ejabberd_sql:sql_transaction(LServer, F).
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delete_motd(LServer) ->
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F = fun() ->
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ejabberd_sql:sql_query_t([<<"delete from motd;">>])
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end,
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ejabberd_sql:sql_transaction(LServer, F).
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get_motd(LServer) ->
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case catch ejabberd_sql:sql_query(
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LServer, [<<"select xml from motd where username='';">>]) of
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{selected, [<<"xml">>], [[XML]]} ->
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case fxml_stream:parse_element(XML) of
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{error, _} ->
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error;
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Packet ->
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{ok, Packet}
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end;
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_ ->
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error
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end.
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is_motd_user(LUser, LServer) ->
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Username = ejabberd_sql:escape(LUser),
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case catch ejabberd_sql:sql_query(
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LServer,
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[<<"select username from motd "
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"where username='">>, Username, <<"';">>]) of
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{selected, [<<"username">>], [_|_]} ->
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true;
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_ ->
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false
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end.
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set_motd_user(LUser, LServer) ->
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Username = ejabberd_sql:escape(LUser),
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F = fun() ->
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sql_queries:update_t(
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<<"motd">>,
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[<<"username">>, <<"xml">>],
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[Username, <<"">>],
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[<<"username='">>, Username, <<"'">>])
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end,
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ejabberd_sql:sql_transaction(LServer, F).
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export(_Server) ->
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[{motd,
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fun(Host, #motd{server = LServer, packet = El})
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when LServer == Host ->
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[[<<"delete from motd where username='';">>],
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[<<"insert into motd(username, xml) values ('', '">>,
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ejabberd_sql:escape(fxml:element_to_binary(El)),
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<<"');">>]];
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(_Host, _R) ->
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[]
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end},
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{motd_users,
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fun(Host, #motd_users{us = {LUser, LServer}})
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when LServer == Host, LUser /= <<"">> ->
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Username = ejabberd_sql:escape(LUser),
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[[<<"delete from motd where username='">>, Username, <<"';">>],
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[<<"insert into motd(username, xml) values ('">>,
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Username, <<"', '');">>]];
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(_Host, _R) ->
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[]
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end}].
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import(LServer) ->
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[{<<"select xml from motd where username='';">>,
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fun([XML]) ->
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El = fxml_stream:parse_element(XML),
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#motd{server = LServer, packet = El}
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end},
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{<<"select username from motd where xml='';">>,
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fun([LUser]) ->
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#motd_users{us = {LUser, LServer}}
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end}].
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import(_, _) ->
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pass.
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%%%===================================================================
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%%% Internal functions
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%%%===================================================================
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