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CHANGELOG.md: Update to 25.10

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/src/mod_muc_sql.erl

%%%-------------------------------------------------------------------
%%% File    : mod_muc_sql.erl
%%% Author  : Evgeny Khramtsov <ekhramtsov@process-one.net>
%%% Created : 13 Apr 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2025   ProcessOne
%%%
%%% 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_muc_sql).


-behaviour(mod_muc).
-behaviour(mod_muc_room).

%% API
-export([init/2, store_room/5, store_changes/4,
         restore_room/3, forget_room/3,
         can_use_nick/4, get_rooms/2, get_nick/3, get_nicks/2, set_nick/4,
         import/3, export/1]).
-export([register_online_room/4, unregister_online_room/4, find_online_room/3,
         get_online_rooms/3, count_online_rooms/2, rsm_supported/0,
         register_online_user/4, unregister_online_user/4,
         count_online_rooms_by_user/3, get_online_rooms_by_user/3,
         get_subscribed_rooms/3, get_rooms_without_subscribers/2,
         get_hibernated_rooms_older_than/3,
         find_online_room_by_pid/2, remove_user/2]).
-export([set_affiliation/6, set_affiliations/4, get_affiliation/5,
         get_affiliations/3, search_affiliation/4]).
-export([sql_schemas/0]).

-include_lib("xmpp/include/jid.hrl").
-include("mod_muc.hrl").
-include("logger.hrl").
-include("ejabberd_sql_pt.hrl").

%%%===================================================================
%%% API
%%%===================================================================
init(Host, Opts) ->
    ejabberd_sql_schema:update_schema(Host, ?MODULE, sql_schemas()),
    case gen_mod:ram_db_mod(Opts, mod_muc) of
        ?MODULE ->
            clean_tables(Host);
        _ ->
            ok
    end.

sql_schemas() ->
    [#sql_schema{
        version = 1,
        tables =
            [#sql_table{
                name = <<"muc_room">>,
                columns =
                    [#sql_column{name = <<"name">>, type = text},
                     #sql_column{name = <<"host">>, type = text},
                     #sql_column{name = <<"server_host">>, type = text},
                     #sql_column{name = <<"opts">>, type = {text, big}},
                     #sql_column{name = <<"created_at">>, type = timestamp,
                                 default = true}],
                indices = [#sql_index{
                              columns = [<<"name">>, <<"host">>],
                              unique = true},
                           #sql_index{
                              columns = [<<"host">>, <<"created_at">>]}]},
             #sql_table{
                name = <<"muc_registered">>,
                columns =
                    [#sql_column{name = <<"jid">>, type = text},
                     #sql_column{name = <<"host">>, type = text},
                     #sql_column{name = <<"server_host">>, type = text},
                     #sql_column{name = <<"nick">>, type = text},
                     #sql_column{name = <<"created_at">>, type = timestamp,
                                 default = true}],
                indices = [#sql_index{
                              columns = [<<"jid">>, <<"host">>],
                              unique = true},
                           #sql_index{
                              columns = [<<"nick">>]}]},
             #sql_table{
                name = <<"muc_online_room">>,
                columns =
                    [#sql_column{name = <<"name">>, type = text},
                     #sql_column{name = <<"host">>, type = text},
                     #sql_column{name = <<"server_host">>, type = text},
                     #sql_column{name = <<"node">>, type = text},
                     #sql_column{name = <<"pid">>, type = text}],
                indices = [#sql_index{
                              columns = [<<"name">>, <<"host">>],
                              unique = true}]},
             #sql_table{
                name = <<"muc_online_users">>,
                columns =
                    [#sql_column{name = <<"username">>, type = text},
                     #sql_column{name = <<"server">>, type = {text, 75}},
                     #sql_column{name = <<"resource">>, type = text},
                     #sql_column{name = <<"name">>, type = text},
                     #sql_column{name = <<"host">>, type = {text, 75}},
                     #sql_column{name = <<"server_host">>, type = text},
                     #sql_column{name = <<"node">>, type = text}],
                indices = [#sql_index{
                              columns = [<<"username">>, <<"server">>,
                                         <<"resource">>, <<"name">>,
                                         <<"host">>],
                              unique = true}]},
             #sql_table{
                name = <<"muc_room_subscribers">>,
                columns =
                    [#sql_column{name = <<"room">>, type = text},
                     #sql_column{name = <<"host">>, type = text},
                     #sql_column{name = <<"jid">>, type = text},
                     #sql_column{name = <<"nick">>, type = text},
                     #sql_column{name = <<"nodes">>, type = text},
                     #sql_column{name = <<"created_at">>, type = timestamp,
                                 default = true}],
                indices = [#sql_index{
                              columns = [<<"host">>, <<"room">>, <<"jid">>],
                              unique = true},
                           #sql_index{
                              columns = [<<"host">>, <<"jid">>]},
                           #sql_index{
                              columns = [<<"jid">>]}]}]}].

store_room(LServer, Host, Name, Opts, ChangesHints) ->
    {Subs, Opts2} = case lists:keytake(subscribers, 1, Opts) of
                        {value, {subscribers, S}, OptN} -> {S, OptN};
                        _ -> {[], Opts}
                    end,
    SOpts = misc:term_to_expr(Opts2),
    Timestamp = case lists:keyfind(hibernation_time, 1, Opts) of
                    false -> <<"1970-01-02 00:00:00">>;
                    {_, undefined} -> <<"1970-01-02 00:00:00">>;
                    {_, Time} -> usec_to_sql_timestamp(Time)
                end,
    F = fun () ->
                ?SQL_UPSERT_T(
                   "muc_room",
                   ["!name=%(Name)s",
                    "!host=%(Host)s",
                    "server_host=%(LServer)s",
                    "opts=%(SOpts)s",
                    "created_at=%(Timestamp)t"]),
                case ChangesHints of
                    Changes when is_list(Changes) ->
                        [change_room(Host, Name, Change) || Change <- Changes];
                    _ ->
                        ejabberd_sql:sql_query_t(
                          ?SQL("delete from muc_room_subscribers where "
                               "room=%(Name)s and host=%(Host)s")),
                        [change_room(Host, Name, {add_subscription, JID, Nick, Nodes})
                         || {JID, Nick, Nodes} <- Subs]
                end
        end,
    ejabberd_sql:sql_transaction(LServer, F).

store_changes(LServer, Host, Name, Changes) ->
    F = fun () ->
                [change_room(Host, Name, Change) || Change <- Changes]
        end,
    ejabberd_sql:sql_transaction(LServer, F).

change_room(Host, Room, {add_subscription, JID, Nick, Nodes}) ->
    SJID = jid:encode(JID),
    SNodes = misc:term_to_expr(Nodes),
    ?SQL_UPSERT_T(
       "muc_room_subscribers",
       ["!jid=%(SJID)s",
        "!host=%(Host)s",
        "!room=%(Room)s",
        "nick=%(Nick)s",
        "nodes=%(SNodes)s"]);
change_room(Host, Room, {del_subscription, JID}) ->
    SJID = jid:encode(JID),
    ejabberd_sql:sql_query_t(?SQL("delete from muc_room_subscribers where "
                                  "room=%(Room)s and host=%(Host)s and jid=%(SJID)s"));
change_room(Host, Room, Change) ->
    ?ERROR_MSG("Unsupported change on room ~ts@~ts: ~p", [Room, Host, Change]).

restore_room(LServer, Host, Name) ->
    case catch ejabberd_sql:sql_query(
                 LServer,
                 ?SQL("select @(opts)s from muc_room where name=%(Name)s"
                      " and host=%(Host)s")) of
        {selected, [{Opts}]} ->
            OptsD = ejabberd_sql:decode_term(Opts),
            case catch ejabberd_sql:sql_query(
                LServer,
                ?SQL("select @(jid)s, @(nick)s, @(nodes)s from muc_room_subscribers where room=%(Name)s"
                     " and host=%(Host)s")) of
                {selected, []} ->
                    OptsR = mod_muc:opts_to_binary(OptsD),
                    case lists:keymember(subscribers, 1, OptsD) of
                        true ->
                            store_room(LServer, Host, Name, OptsR, undefined);
                        _ ->
                            ok
                    end,
                    OptsR;
                {selected, Subs} ->
                    SubData = lists:map(
                             fun({Jid, Nick, Nodes}) ->
                                 {jid:decode(Jid), Nick, ejabberd_sql:decode_term(Nodes)}
                             end, Subs),
                    Opts2 = lists:keystore(subscribers, 1, OptsD, {subscribers, SubData}),
                    mod_muc:opts_to_binary(Opts2);
                _ ->
                    {error, db_failure}
            end;
        {selected, _} ->
            error;
        _ ->
            {error, db_failure}
    end.

forget_room(LServer, Host, Name) ->
    F = fun () ->
                ejabberd_sql:sql_query_t(
                  ?SQL("delete from muc_room where name=%(Name)s"
                       " and host=%(Host)s")),
                ejabberd_sql:sql_query_t(
                    ?SQL("delete from muc_room_subscribers where room=%(Name)s"
                       " and host=%(Host)s"))
        end,
    ejabberd_sql:sql_transaction(LServer, F).

can_use_nick(LServer, ServiceOrRoom, JID, Nick) ->
    SJID = jid:encode(jid:tolower(jid:remove_resource(JID))),
    SqlQuery = case (jid:decode(ServiceOrRoom))#jid.lserver of
                   ServiceOrRoom ->
                       ?SQL("select @(jid)s from muc_registered "
                            "where nick=%(Nick)s"
                            " and host=%(ServiceOrRoom)s");
                   Service ->
                       ?SQL("select @(jid)s from muc_registered "
                            "where nick=%(Nick)s"
                            " and (host=%(ServiceOrRoom)s or host=%(Service)s)")
               end,
    case catch ejabberd_sql:sql_query(LServer, SqlQuery) of
        {selected, [{SJID1}]} -> SJID == SJID1;
        _ -> true
    end.

get_rooms_without_subscribers(LServer, Host) ->
    case catch ejabberd_sql:sql_query(
        LServer,
        ?SQL("select @(name)s, @(opts)s from muc_room"
             " where host=%(Host)s")) of
        {selected, RoomOpts} ->
            lists:map(
                fun({Room, Opts}) ->
                    OptsD = ejabberd_sql:decode_term(Opts),
                    #muc_room{name_host = {Room, Host},
                              opts = mod_muc:opts_to_binary(OptsD)}
                end, RoomOpts);
        _Err ->
            []
    end.

get_hibernated_rooms_older_than(LServer, Host, Timestamp) ->
    TimestampS = usec_to_sql_timestamp(Timestamp),
    case catch ejabberd_sql:sql_query(
        LServer,
        ?SQL("select @(name)s, @(opts)s from muc_room"
             " where host=%(Host)s and created_at < %(TimestampS)t and created_at > '1970-01-02 00:00:00'")) of
        {selected, RoomOpts} ->
            lists:map(
                fun({Room, Opts}) ->
                    OptsD = ejabberd_sql:decode_term(Opts),
                    #muc_room{name_host = {Room, Host},
                              opts = mod_muc:opts_to_binary(OptsD)}
                end, RoomOpts);
        _Err ->
            []
    end.

get_rooms(LServer, Host) ->
    case catch ejabberd_sql:sql_query(
                 LServer,
                 ?SQL("select @(name)s, @(opts)s from muc_room"
                      " where host=%(Host)s")) of
        {selected, RoomOpts} ->
            case catch ejabberd_sql:sql_query(
                LServer,
                ?SQL("select @(room)s, @(jid)s, @(nick)s, @(nodes)s from muc_room_subscribers"
                     " where host=%(Host)s")) of
                {selected, Subs} ->
                    SubsD = lists:foldl(
                        fun({Room, Jid, Nick, Nodes}, Dict) ->
                                Sub = {jid:decode(Jid),
                                       Nick, ejabberd_sql:decode_term(Nodes)},
                                maps:update_with(
                                  Room,
                                  fun(SubAcc) ->
                                          [Sub | SubAcc]
                                  end,
                                  [Sub],
                                  Dict)
                        end, maps:new(), Subs),
            lists:map(
              fun({Room, Opts}) ->
                            OptsD = ejabberd_sql:decode_term(Opts),
                            OptsD2 = case {maps:find(Room, SubsD), lists:keymember(subscribers, 1, OptsD)} of
                                         {_, true} ->
                                             store_room(LServer, Host, Room, mod_muc:opts_to_binary(OptsD), undefined),
                                             OptsD;
                                         {{ok, SubsI}, false} ->
                                             lists:keystore(subscribers, 1, OptsD, {subscribers, SubsI});
                                         _ ->
                                             OptsD
                            end,
                      #muc_room{name_host = {Room, Host},
                                      opts = mod_muc:opts_to_binary(OptsD2)}
              end, RoomOpts);
        _Err ->
                    []
            end;
        _Err ->
            []
    end.

get_nick(LServer, Host, From) ->
    SJID = jid:encode(jid:tolower(jid:remove_resource(From))),
    case catch ejabberd_sql:sql_query(
                 LServer,
                 ?SQL("select @(nick)s from muc_registered where"
                      " jid=%(SJID)s and host=%(Host)s")) of
        {selected, [{Nick}]} -> Nick;
        _ -> error
    end.

get_nicks(LServer, Host) ->
    case catch ejabberd_sql:sql_query(LServer,
                                      ?SQL("select @(jid)s, @(nick)s from muc_registered where"
                                           " host=%(Host)s"))
    of
        {selected, Results} ->
            lists:map(fun({JidBin, Nick}) ->
                         {User, Server, _Resource} =
                             jid:tolower(
                                 jid:decode(JidBin)),
                         {User, Server, Nick}
                      end,
                      Results);
        _ ->
            error
    end.

set_nick(LServer, ServiceOrRoom, From, Nick) ->
    JID = jid:encode(jid:tolower(jid:remove_resource(From))),
    F = fun () ->
                case Nick of
                    <<"">> ->
                        ejabberd_sql:sql_query_t(
                          ?SQL("delete from muc_registered where"
                               " jid=%(JID)s and host=%(ServiceOrRoom)s")),
                        ok;
                    _ ->
                        Service = (jid:decode(ServiceOrRoom))#jid.lserver,
                        SqlQuery = case (ServiceOrRoom == Service) of
                                       true ->
                                           ?SQL("select @(jid)s, @(host)s from muc_registered "
                                                "where nick=%(Nick)s"
                                                " and host=%(ServiceOrRoom)s");
                                       false ->
                                           ?SQL("select @(jid)s, @(host)s from muc_registered "
                                                "where nick=%(Nick)s"
                                                " and (host=%(ServiceOrRoom)s or host=%(Service)s)")
                                   end,
                        Allow = case ejabberd_sql:sql_query_t(SqlQuery) of
                                    {selected, []}
                                      when (ServiceOrRoom == Service) ->
                                        %% Registering in the service...
                                        %% check if nick is registered for some room in this service
                                        {selected, NickRegistrations} =
                                            ejabberd_sql:sql_query_t(
                                              ?SQL("select @(jid)s, @(host)s from muc_registered "
                                                   "where nick=%(Nick)s")),
                                        not lists:any(fun({_NRJid, NRServiceOrRoom}) ->
                                                              Service == (jid:decode(NRServiceOrRoom))#jid.lserver end,
                                                      NickRegistrations);
                                    {selected, []} ->
                                        %% Nick not registered in any service or room
                                        true;
                                    {selected, [{_J, Host}]}
                                      when (Host == Service) and (ServiceOrRoom /= Service) ->
                                        %% Registering in a room, but the nick is already registered in the service
                                        false;
                                    {selected, [{J, _Host}]} ->
                                        %% Registering in room (or service) a nick that is
                                        %% already registered in this room (or service)
                                        %% Only the owner of this registration can use the nick
                                        J == JID
                                end,
                        if Allow ->
                                ?SQL_UPSERT_T(
                                  "muc_registered",
                                  ["!jid=%(JID)s",
                                   "!host=%(ServiceOrRoom)s",
                                   "server_host=%(LServer)s",
                                   "nick=%(Nick)s"]),
                                ok;
                           true ->
                                false
                        end
                end
        end,
    ejabberd_sql:sql_transaction(LServer, F).

set_affiliation(_ServerHost, _Room, _Host, _JID, _Affiliation, _Reason) ->
    {error, not_implemented}.

set_affiliations(_ServerHost, _Room, _Host, _Affiliations) ->
    {error, not_implemented}.

get_affiliation(_ServerHost, _Room, _Host, _LUser, _LServer) ->
    {error, not_implemented}.

get_affiliations(_ServerHost, _Room, _Host) ->
    {error, not_implemented}.

search_affiliation(_ServerHost, _Room, _Host, _Affiliation) ->
    {error, not_implemented}.

register_online_room(ServerHost, Room, Host, Pid) ->
    PidS = misc:encode_pid(Pid),
    NodeS = erlang:atom_to_binary(node(Pid), latin1),
    case ?SQL_UPSERT(ServerHost,
                     "muc_online_room",
                     ["!name=%(Room)s",
                      "!host=%(Host)s",
                      "server_host=%(ServerHost)s",
                      "node=%(NodeS)s",
                      "pid=%(PidS)s"]) of
        ok ->
            ok;
        Err ->
            Err
    end.

unregister_online_room(ServerHost, Room, Host, Pid) ->
    %% TODO: report errors
    PidS = misc:encode_pid(Pid),
    NodeS = erlang:atom_to_binary(node(Pid), latin1),
    ejabberd_sql:sql_query(
      ServerHost,
      ?SQL("delete from muc_online_room where name=%(Room)s and "
           "host=%(Host)s and node=%(NodeS)s and pid=%(PidS)s")).

find_online_room(ServerHost, Room, Host) ->
    case ejabberd_sql:sql_query(
           ServerHost,
           ?SQL("select @(pid)s, @(node)s from muc_online_room where "
                "name=%(Room)s and host=%(Host)s")) of
        {selected, [{PidS, NodeS}]} ->
            try {ok, misc:decode_pid(PidS, NodeS)}
            catch _:{bad_node, _} -> error
            end;
        {selected, []} ->
            error;
        _Err ->
            error
    end.

find_online_room_by_pid(ServerHost, Pid) ->
    PidS = misc:encode_pid(Pid),
    NodeS = erlang:atom_to_binary(node(Pid), latin1),
    case ejabberd_sql:sql_query(
        ServerHost,
        ?SQL("select @(name)s, @(host)s from muc_online_room where "
             "node=%(NodeS)s and pid=%(PidS)s")) of
        {selected, [{Room, Host}]} ->
            {ok, Room, Host};
        {selected, []} ->
            error;
        _Err ->
            error
    end.

count_online_rooms(ServerHost, Host) ->
    case ejabberd_sql:sql_query(
           ServerHost,
           ?SQL("select @(count(*))d from muc_online_room "
                "where host=%(Host)s")) of
        {selected, [{Num}]} ->
            Num;
        _Err ->
            0
    end.

get_online_rooms(ServerHost, Host, _RSM) ->
    case ejabberd_sql:sql_query(
           ServerHost,
           ?SQL("select @(name)s, @(pid)s, @(node)s from muc_online_room "
                "where host=%(Host)s")) of
        {selected, Rows} ->
            lists:flatmap(
              fun({Room, PidS, NodeS}) ->
                      try [{Room, Host, misc:decode_pid(PidS, NodeS)}]
                      catch _:{bad_node, _} -> []
                      end
              end, Rows);
        _Err ->
            []
    end.

rsm_supported() ->
    false.

register_online_user(ServerHost, {U, S, R}, Room, Host) ->
    NodeS = erlang:atom_to_binary(node(), latin1),
    case ?SQL_UPSERT(ServerHost, "muc_online_users",
                     ["!username=%(U)s",
                      "!server=%(S)s",
                      "!resource=%(R)s",
                      "!name=%(Room)s",
                      "!host=%(Host)s",
                      "server_host=%(ServerHost)s",
                      "node=%(NodeS)s"]) of
        ok ->
            ok;
        Err ->
            Err
    end.

unregister_online_user(ServerHost, {U, S, R}, Room, Host) ->
    %% TODO: report errors
    ejabberd_sql:sql_query(
      ServerHost,
      ?SQL("delete from muc_online_users where username=%(U)s and "
           "server=%(S)s and resource=%(R)s and name=%(Room)s and "
           "host=%(Host)s")).

count_online_rooms_by_user(ServerHost, U, S) ->
    case ejabberd_sql:sql_query(
           ServerHost,
           ?SQL("select @(count(*))d from muc_online_users where "
                "username=%(U)s and server=%(S)s")) of
        {selected, [{Num}]} ->
            Num;
        _Err ->
            0
    end.

get_online_rooms_by_user(ServerHost, U, S) ->
    case ejabberd_sql:sql_query(
           ServerHost,
           ?SQL("select @(name)s, @(host)s from muc_online_users where "
                "username=%(U)s and server=%(S)s")) of
        {selected, Rows} ->
            Rows;
        _Err ->
            []
    end.

export(_Server) ->
    [{muc_room,
      fun(Host, #muc_room{name_host = {Name, RoomHost}, opts = Opts}) ->
              case str:suffix(Host, RoomHost) of
                  true ->
                      SOpts = misc:term_to_expr(Opts),
                      [?SQL("delete from muc_room where name=%(Name)s"
                            " and host=%(RoomHost)s;"),
                       ?SQL_INSERT(
                          "muc_room",
                          ["name=%(Name)s",
                           "host=%(RoomHost)s",
                           "server_host=%(Host)s",
                           "opts=%(SOpts)s"])];
                  false ->
                      []
              end
      end},
     {muc_registered,
      fun(Host, #muc_registered{us_host = {{U, S}, RoomHost},
                                nick = Nick}) ->
              case str:suffix(Host, RoomHost) of
                  true ->
                      SJID = jid:encode(jid:make(U, S)),
                      [?SQL("delete from muc_registered where"
                            " jid=%(SJID)s and host=%(RoomHost)s;"),
                       ?SQL_INSERT(
                          "muc_registered",
                          ["jid=%(SJID)s",
                           "host=%(RoomHost)s",
                           "server_host=%(Host)s",
                           "nick=%(Nick)s"])];
                  false ->
                      []
              end
      end}].

import(_, _, _) ->
    ok.

get_subscribed_rooms(LServer, Host, Jid) ->
    JidS = jid:encode(Jid),
    case ejabberd_sql:sql_query(
           LServer,
           ?SQL("select @(room)s, @(nick)s, @(nodes)s from muc_room_subscribers "
                "where jid=%(JidS)s and host=%(Host)s")) of
        {selected, Subs} ->
            {ok, [{jid:make(Room, Host), Nick, ejabberd_sql:decode_term(Nodes)}
                  || {Room, Nick, Nodes} <- Subs]};
        _Error ->
            {error, db_failure}
    end.

remove_user(LUser, LServer) ->
    SJID = jid:encode(jid:make(LUser, LServer)),
    ejabberd_sql:sql_query(
      LServer,
      ?SQL("delete from muc_room_subscribers where jid=%(SJID)s")),
    ok.

%%%===================================================================
%%% Internal functions
%%%===================================================================
clean_tables(ServerHost) ->
    NodeS = erlang:atom_to_binary(node(), latin1),
    ?DEBUG("Cleaning SQL muc_online_room table...", []),
    case ejabberd_sql:sql_query(
           ServerHost,
           ?SQL("delete from muc_online_room where node=%(NodeS)s")) of
        {updated, _} ->
            ok;
        Err1 ->
            ?ERROR_MSG("Failed to clean 'muc_online_room' table: ~p", [Err1]),
            Err1
    end,
    ?DEBUG("Cleaning SQL muc_online_users table...", []),
    case ejabberd_sql:sql_query(
           ServerHost,
           ?SQL("delete from muc_online_users where node=%(NodeS)s")) of
        {updated, _} ->
            ok;
        Err2 ->
            ?ERROR_MSG("Failed to clean 'muc_online_users' table: ~p", [Err2]),
            Err2
    end.

usec_to_sql_timestamp(Timestamp) ->
    TS = misc:usec_to_now(Timestamp),
    case calendar:now_to_universal_time(TS) of
        {{Year, Month, Day}, {Hour, Minute, Second}} ->
            list_to_binary(io_lib:format("~4..0B-~2..0B-~2..0B "
                                         "~2..0B:~2..0B:~2..0B",
                                         [Year, Month, Day, Hour, Minute, Second]))
    end.

processone / ejabberd / 1173

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