mirror of
https://github.com/processone/ejabberd.git
synced 2024-12-22 17:28:25 +01:00
fd8e07af47
The header consisted of too many unrelated stuff and macros misuse. Some stuff is moved into scram.hrl and type_compat.hrl. All macros have been replaced with the corresponding function calls. TODO: probably type_compat.hrl is not even needed anymore since we support only Erlang >= OTP 17.5
251 lines
8.7 KiB
Erlang
251 lines
8.7 KiB
Erlang
%%%-------------------------------------------------------------------
|
|
%%% File : ejabberd_logger.erl
|
|
%%% Author : Evgeniy Khramtsov <ekhramtsov@process-one.net>
|
|
%%% Purpose : ejabberd logger wrapper
|
|
%%% Created : 12 May 2013 by Evgeniy Khramtsov <ekhramtsov@process-one.net>
|
|
%%%
|
|
%%%
|
|
%%% ejabberd, Copyright (C) 2013-2018 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(ejabberd_logger).
|
|
|
|
-behaviour(ejabberd_config).
|
|
|
|
%% API
|
|
-export([start/0, restart/0, reopen_log/0, rotate_log/0, get/0, set/1,
|
|
get_log_path/0, opt_type/1]).
|
|
|
|
|
|
-type loglevel() :: 0 | 1 | 2 | 3 | 4 | 5.
|
|
|
|
-spec start() -> ok.
|
|
-spec get_log_path() -> string().
|
|
-spec reopen_log() -> ok.
|
|
-spec rotate_log() -> ok.
|
|
-spec get() -> {loglevel(), atom(), string()}.
|
|
-spec set(loglevel() | {loglevel(), list()}) -> {module, module()}.
|
|
|
|
%%%===================================================================
|
|
%%% API
|
|
%%%===================================================================
|
|
%% @doc Returns the full path to the ejabberd log file.
|
|
%% It first checks for application configuration parameter 'log_path'.
|
|
%% If not defined it checks the environment variable EJABBERD_LOG_PATH.
|
|
%% And if that one is neither defined, returns the default value:
|
|
%% "ejabberd.log" in current directory.
|
|
%% Note: If the directory where to place the ejabberd log file to not exist,
|
|
%% it is not created and no log file will be generated.
|
|
%% @spec () -> string()
|
|
get_log_path() ->
|
|
case ejabberd_config:env_binary_to_list(ejabberd, log_path) of
|
|
{ok, Path} ->
|
|
Path;
|
|
undefined ->
|
|
case os:getenv("EJABBERD_LOG_PATH") of
|
|
false ->
|
|
"ejabberd.log";
|
|
Path ->
|
|
Path
|
|
end
|
|
end.
|
|
|
|
opt_type(log_rotate_date) ->
|
|
fun(S) -> binary_to_list(iolist_to_binary(S)) end;
|
|
opt_type(log_rotate_size) ->
|
|
fun(I) when is_integer(I), I >= 0 -> I end;
|
|
opt_type(log_rotate_count) ->
|
|
fun(I) when is_integer(I), I >= 0 -> I end;
|
|
opt_type(log_rate_limit) ->
|
|
fun(I) when is_integer(I), I >= 0 -> I end;
|
|
opt_type(_) ->
|
|
[log_rotate_date, log_rotate_size, log_rotate_count, log_rate_limit].
|
|
|
|
get_integer_env(Name, Default) ->
|
|
case application:get_env(ejabberd, Name) of
|
|
{ok, I} when is_integer(I), I>=0 ->
|
|
I;
|
|
undefined ->
|
|
Default;
|
|
{ok, Junk} ->
|
|
error_logger:error_msg("wrong value for ~s: ~p; "
|
|
"using ~p as a fallback~n",
|
|
[Name, Junk, Default]),
|
|
Default
|
|
end.
|
|
get_string_env(Name, Default) ->
|
|
case application:get_env(ejabberd, Name) of
|
|
{ok, L} when is_list(L) ->
|
|
L;
|
|
undefined ->
|
|
Default;
|
|
{ok, Junk} ->
|
|
error_logger:error_msg("wrong value for ~s: ~p; "
|
|
"using ~p as a fallback~n",
|
|
[Name, Junk, Default]),
|
|
Default
|
|
end.
|
|
|
|
%% @spec () -> ok
|
|
start() ->
|
|
start(4).
|
|
|
|
-spec start(loglevel()) -> ok.
|
|
start(Level) ->
|
|
LLevel = get_lager_loglevel(Level),
|
|
StartedApps = application:which_applications(5000),
|
|
case lists:keyfind(logger, 1, StartedApps) of
|
|
%% Elixir logger is started. We assume everything is in place
|
|
%% to use lager to Elixir logger bridge.
|
|
{logger, _, _} ->
|
|
error_logger:info_msg("Ignoring ejabberd logger options, using Elixir Logger.", []),
|
|
%% Do not start lager, we rely on Elixir Logger
|
|
do_start_for_logger(LLevel);
|
|
_ ->
|
|
do_start(LLevel)
|
|
end.
|
|
|
|
do_start_for_logger(Level) ->
|
|
application:load(sasl),
|
|
application:set_env(sasl, sasl_error_logger, false),
|
|
application:load(lager),
|
|
application:set_env(lager, error_logger_redirect, false),
|
|
application:set_env(lager, error_logger_whitelist, ['Elixir.Logger.ErrorHandler']),
|
|
application:set_env(lager, crash_log, false),
|
|
application:set_env(lager, handlers, [{elixir_logger_backend, [{level, Level}]}]),
|
|
ejabberd:start_app(lager),
|
|
ok.
|
|
|
|
%% Start lager
|
|
do_start(Level) ->
|
|
application:load(sasl),
|
|
application:set_env(sasl, sasl_error_logger, false),
|
|
application:load(lager),
|
|
ConsoleLog = get_log_path(),
|
|
Dir = filename:dirname(ConsoleLog),
|
|
ErrorLog = filename:join([Dir, "error.log"]),
|
|
CrashLog = filename:join([Dir, "crash.log"]),
|
|
LogRotateDate = get_string_env(log_rotate_date, ""),
|
|
LogRotateSize = get_integer_env(log_rotate_size, 10*1024*1024),
|
|
LogRotateCount = get_integer_env(log_rotate_count, 1),
|
|
LogRateLimit = get_integer_env(log_rate_limit, 100),
|
|
application:set_env(lager, error_logger_hwm, LogRateLimit),
|
|
application:set_env(
|
|
lager, handlers,
|
|
[{lager_console_backend, Level},
|
|
{lager_file_backend, [{file, ConsoleLog}, {level, Level}, {date, LogRotateDate},
|
|
{count, LogRotateCount}, {size, LogRotateSize}]},
|
|
{lager_file_backend, [{file, ErrorLog}, {level, error}, {date, LogRotateDate},
|
|
{count, LogRotateCount}, {size, LogRotateSize}]}]),
|
|
application:set_env(lager, crash_log, CrashLog),
|
|
application:set_env(lager, crash_log_date, LogRotateDate),
|
|
application:set_env(lager, crash_log_size, LogRotateSize),
|
|
application:set_env(lager, crash_log_count, LogRotateCount),
|
|
ejabberd:start_app(lager),
|
|
lists:foreach(fun(Handler) ->
|
|
lager:set_loghwm(Handler, LogRateLimit)
|
|
end, gen_event:which_handlers(lager_event)),
|
|
ok.
|
|
|
|
restart() ->
|
|
Level = ejabberd_config:get_option(loglevel, 4),
|
|
application:stop(lager),
|
|
start(Level).
|
|
|
|
%% @spec () -> ok
|
|
reopen_log() ->
|
|
%% Lager detects external log rotation automatically.
|
|
ok.
|
|
|
|
%% @spec () -> ok
|
|
rotate_log() ->
|
|
catch lager_crash_log ! rotate,
|
|
lists:foreach(
|
|
fun({lager_file_backend, File}) ->
|
|
whereis(lager_event) ! {rotate, File};
|
|
(_) ->
|
|
ok
|
|
end, gen_event:which_handlers(lager_event)).
|
|
|
|
%% @spec () -> {loglevel(), atom(), string()}
|
|
get() ->
|
|
case get_lager_loglevel() of
|
|
none -> {0, no_log, "No log"};
|
|
emergency -> {1, critical, "Critical"};
|
|
alert -> {1, critical, "Critical"};
|
|
critical -> {1, critical, "Critical"};
|
|
error -> {2, error, "Error"};
|
|
warning -> {3, warning, "Warning"};
|
|
notice -> {3, warning, "Warning"};
|
|
info -> {4, info, "Info"};
|
|
debug -> {5, debug, "Debug"}
|
|
end.
|
|
|
|
%% @spec (loglevel() | {loglevel(), list()}) -> {module, module()}
|
|
set(LogLevel) when is_integer(LogLevel) ->
|
|
LagerLogLevel = get_lager_loglevel(LogLevel),
|
|
case get_lager_loglevel() of
|
|
LagerLogLevel ->
|
|
ok;
|
|
_ ->
|
|
ConsoleLog = get_log_path(),
|
|
lists:foreach(
|
|
fun({lager_file_backend, File} = H) when File == ConsoleLog ->
|
|
lager:set_loglevel(H, LagerLogLevel);
|
|
(lager_console_backend = H) ->
|
|
lager:set_loglevel(H, LagerLogLevel);
|
|
(elixir_logger_backend = H) ->
|
|
lager:set_loglevel(H, LagerLogLevel);
|
|
(_) ->
|
|
ok
|
|
end, gen_event:which_handlers(lager_event))
|
|
end,
|
|
{module, lager};
|
|
set({_LogLevel, _}) ->
|
|
error_logger:error_msg("custom loglevels are not supported for 'lager'"),
|
|
{module, lager}.
|
|
|
|
get_lager_loglevel() ->
|
|
Handlers = get_lager_handlers(),
|
|
lists:foldl(fun(lager_console_backend, _Acc) ->
|
|
lager:get_loglevel(lager_console_backend);
|
|
(elixir_logger_backend, _Acc) ->
|
|
lager:get_loglevel(elixir_logger_backend);
|
|
(_, Acc) ->
|
|
Acc
|
|
end,
|
|
none, Handlers).
|
|
|
|
get_lager_loglevel(LogLevel) ->
|
|
case LogLevel of
|
|
0 -> none;
|
|
1 -> critical;
|
|
2 -> error;
|
|
3 -> warning;
|
|
4 -> info;
|
|
5 -> debug;
|
|
E -> erlang:error({wrong_loglevel, E})
|
|
end.
|
|
|
|
get_lager_handlers() ->
|
|
case catch gen_event:which_handlers(lager_event) of
|
|
{'EXIT',noproc} ->
|
|
[];
|
|
Result ->
|
|
Result
|
|
end.
|