mirror of
https://github.com/processone/ejabberd.git
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117 lines
3.3 KiB
Erlang
117 lines
3.3 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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-compile([{parse_transform, ejabberd_sql_pt}]).
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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/3,
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export/1]).
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-include("xmpp.hrl").
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-include("mod_announce.hrl").
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-include("ejabberd_sql_pt.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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?SQL_UPSERT_T(
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"motd",
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["!username=%(U)s",
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"xml=''"])
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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 = fxml:element_to_binary(Packet),
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F = fun() ->
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?SQL_UPSERT_T(
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"motd",
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["!username=''",
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"xml=%(XML)s"])
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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(?SQL("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,
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?SQL("select @(xml)s from motd where username=''")) of
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{selected, [{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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case catch ejabberd_sql:sql_query(
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LServer,
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?SQL("select @(username)s from motd"
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" where username=%(LUser)s")) of
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{selected, [_|_]} ->
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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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F = fun() ->
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?SQL_UPSERT_T(
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"motd",
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["!username=%(LUser)s",
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"xml=''"])
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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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XML = fxml:element_to_binary(El),
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[?SQL("delete from motd where username='';"),
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?SQL("insert into motd(username, xml) values ('', %(XML)s);")];
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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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[?SQL("delete from motd where username=%(LUser)s;"),
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?SQL("insert into motd(username, xml) values (%(LUser)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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