134 lines
4.1 KiB
Erlang
134 lines
4.1 KiB
Erlang
%%%-------------------------------------------------------------------
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%%% Author : Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%% Created : 28 Mar 2017 by Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2022 ProcessOne
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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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-module(ejabberd_router_sql).
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-behaviour(ejabberd_router).
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%% API
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-export([init/0, register_route/5, unregister_route/3, find_routes/1,
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get_all_routes/0]).
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-include("logger.hrl").
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-include("ejabberd_sql_pt.hrl").
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-include("ejabberd_router.hrl").
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-include("ejabberd_stacktrace.hrl").
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%%%===================================================================
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%%% API
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%%%===================================================================
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init() ->
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Node = erlang:atom_to_binary(node(), latin1),
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?DEBUG("Cleaning SQL 'route' table...", []),
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case ejabberd_sql:sql_query(
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ejabberd_config:get_myname(), ?SQL("delete from route where node=%(Node)s")) of
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{updated, _} ->
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ok;
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Err ->
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?ERROR_MSG("Failed to clean 'route' table: ~p", [Err]),
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Err
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end.
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register_route(Domain, ServerHost, LocalHint, _, Pid) ->
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PidS = misc:encode_pid(Pid),
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LocalHintS = enc_local_hint(LocalHint),
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Node = erlang:atom_to_binary(node(Pid), latin1),
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case ?SQL_UPSERT(ejabberd_config:get_myname(), "route",
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["!domain=%(Domain)s",
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"!server_host=%(ServerHost)s",
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"!node=%(Node)s",
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"!pid=%(PidS)s",
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"local_hint=%(LocalHintS)s"]) of
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ok ->
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ok;
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_ ->
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{error, db_failure}
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end.
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unregister_route(Domain, _, Pid) ->
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PidS = misc:encode_pid(Pid),
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Node = erlang:atom_to_binary(node(Pid), latin1),
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case ejabberd_sql:sql_query(
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ejabberd_config:get_myname(),
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?SQL("delete from route where domain=%(Domain)s "
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"and pid=%(PidS)s and node=%(Node)s")) of
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{updated, _} ->
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ok;
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_ ->
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{error, db_failure}
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end.
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find_routes(Domain) ->
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case ejabberd_sql:sql_query(
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ejabberd_config:get_myname(),
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?SQL("select @(server_host)s, @(node)s, @(pid)s, @(local_hint)s "
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"from route where domain=%(Domain)s")) of
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{selected, Rows} ->
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{ok, lists:flatmap(
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fun(Row) ->
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row_to_route(Domain, Row)
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end, Rows)};
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_ ->
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{error, db_failure}
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end.
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get_all_routes() ->
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case ejabberd_sql:sql_query(
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ejabberd_config:get_myname(),
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?SQL("select @(domain)s from route where domain <> server_host")) of
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{selected, Domains} ->
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{ok, [Domain || {Domain} <- Domains]};
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_ ->
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{error, db_failure}
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end.
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%%%===================================================================
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%%% Internal functions
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%%%===================================================================
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enc_local_hint(undefined) ->
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<<"">>;
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enc_local_hint(LocalHint) ->
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misc:term_to_expr(LocalHint).
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dec_local_hint(<<"">>) ->
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undefined;
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dec_local_hint(S) ->
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ejabberd_sql:decode_term(S).
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row_to_route(Domain, {ServerHost, NodeS, PidS, LocalHintS} = Row) ->
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try [#route{domain = Domain,
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server_host = ServerHost,
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pid = misc:decode_pid(PidS, NodeS),
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local_hint = dec_local_hint(LocalHintS)}]
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catch _:{bad_node, _} ->
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[];
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?EX_RULE(Class, Reason, St) ->
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StackTrace = ?EX_STACK(St),
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?ERROR_MSG("Failed to decode row from 'route' table:~n"
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"** Row = ~p~n"
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"** Domain = ~ts~n"
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"** ~ts",
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[Row, Domain,
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misc:format_exception(2, Class, Reason, StackTrace)]),
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[]
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end.
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