mirror of
https://github.com/processone/ejabberd.git
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276 lines
8.7 KiB
Erlang
276 lines
8.7 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : mod_stats.erl
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%%% Author : Alexey Shchepin <alexey@process-one.net>
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%%% Purpose : Basic statistics.
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%%% Created : 11 Jan 2003 by Alexey Shchepin <alexey@process-one.net>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2016 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(mod_stats).
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-author('alexey@process-one.net').
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-protocol({xep, 39, '0.6.0'}).
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-behaviour(gen_mod).
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-export([start/2, stop/1, process_local_iq/3,
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mod_opt_type/1]).
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-include("ejabberd.hrl").
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-include("logger.hrl").
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-include("jlib.hrl").
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start(Host, Opts) ->
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IQDisc = gen_mod:get_opt(iqdisc, Opts, fun gen_iq_handler:check_type/1,
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one_queue),
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gen_iq_handler:add_iq_handler(ejabberd_local, Host,
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?NS_STATS, ?MODULE, process_local_iq, IQDisc).
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stop(Host) ->
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gen_iq_handler:remove_iq_handler(ejabberd_local, Host,
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?NS_STATS).
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process_local_iq(_From, To,
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#iq{id = _ID, type = Type, xmlns = XMLNS,
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sub_el = SubEl, lang = Lang} =
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IQ) ->
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case Type of
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set ->
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Txt = <<"Value 'set' of 'type' attribute is not allowed">>,
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IQ#iq{type = error, sub_el = [SubEl, ?ERRT_NOT_ALLOWED(Lang, Txt)]};
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get ->
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#xmlel{children = Els} = SubEl,
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Node = str:tokens(fxml:get_tag_attr_s(<<"node">>, SubEl),
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<<"/">>),
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Names = get_names(Els, []),
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case get_local_stats(To#jid.server, Node, Names, Lang) of
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{result, Res} ->
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IQ#iq{type = result,
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sub_el =
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[#xmlel{name = <<"query">>,
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attrs = [{<<"xmlns">>, XMLNS}],
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children = Res}]};
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{error, Error} ->
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IQ#iq{type = error, sub_el = [SubEl, Error]}
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end
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end.
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get_names([], Res) -> Res;
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get_names([#xmlel{name = <<"stat">>, attrs = Attrs}
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| Els],
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Res) ->
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Name = fxml:get_attr_s(<<"name">>, Attrs),
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case Name of
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<<"">> -> get_names(Els, Res);
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_ -> get_names(Els, [Name | Res])
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end;
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get_names([_ | Els], Res) -> get_names(Els, Res).
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-define(STAT(Name),
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#xmlel{name = <<"stat">>, attrs = [{<<"name">>, Name}],
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children = []}).
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get_local_stats(_Server, [], [], _Lang) ->
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{result,
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[?STAT(<<"users/online">>), ?STAT(<<"users/total">>),
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?STAT(<<"users/all-hosts/online">>),
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?STAT(<<"users/all-hosts/total">>)]};
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get_local_stats(Server, [], Names, _Lang) ->
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{result,
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lists:map(fun (Name) -> get_local_stat(Server, [], Name)
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end,
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Names)};
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get_local_stats(_Server, [<<"running nodes">>, _],
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[], _Lang) ->
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{result,
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[?STAT(<<"time/uptime">>), ?STAT(<<"time/cputime">>),
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?STAT(<<"users/online">>),
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?STAT(<<"transactions/committed">>),
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?STAT(<<"transactions/aborted">>),
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?STAT(<<"transactions/restarted">>),
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?STAT(<<"transactions/logged">>)]};
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get_local_stats(_Server, [<<"running nodes">>, ENode],
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Names, Lang) ->
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case search_running_node(ENode) of
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false ->
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Txt = <<"No running node found">>,
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{error, ?ERRT_ITEM_NOT_FOUND(Lang, Txt)};
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Node ->
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{result,
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lists:map(fun (Name) -> get_node_stat(Node, Name) end,
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Names)}
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end;
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get_local_stats(_Server, _, _, Lang) ->
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Txt = <<"No statistics found for this item">>,
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{error, ?ERRT_FEATURE_NOT_IMPLEMENTED(Lang, Txt)}.
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-define(STATVAL(Val, Unit),
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#xmlel{name = <<"stat">>,
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attrs =
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[{<<"name">>, Name}, {<<"units">>, Unit},
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{<<"value">>, Val}],
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children = []}).
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-define(STATERR(Code, Desc),
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#xmlel{name = <<"stat">>, attrs = [{<<"name">>, Name}],
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children =
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[#xmlel{name = <<"error">>,
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attrs = [{<<"code">>, Code}],
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children = [{xmlcdata, Desc}]}]}).
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get_local_stat(Server, [], Name)
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when Name == <<"users/online">> ->
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case catch ejabberd_sm:get_vh_session_list(Server) of
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{'EXIT', _Reason} ->
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?STATERR(<<"500">>, <<"Internal Server Error">>);
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Users ->
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?STATVAL((iolist_to_binary(integer_to_list(length(Users)))),
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<<"users">>)
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end;
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get_local_stat(Server, [], Name)
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when Name == <<"users/total">> ->
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case catch
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ejabberd_auth:get_vh_registered_users_number(Server)
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of
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{'EXIT', _Reason} ->
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?STATERR(<<"500">>, <<"Internal Server Error">>);
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NUsers ->
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?STATVAL((iolist_to_binary(integer_to_list(NUsers))),
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<<"users">>)
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end;
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get_local_stat(_Server, [], Name)
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when Name == <<"users/all-hosts/online">> ->
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case catch mnesia:table_info(session, size) of
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{'EXIT', _Reason} ->
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?STATERR(<<"500">>, <<"Internal Server Error">>);
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Users ->
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?STATVAL((iolist_to_binary(integer_to_list(Users))),
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<<"users">>)
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end;
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get_local_stat(_Server, [], Name)
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when Name == <<"users/all-hosts/total">> ->
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NumUsers = lists:foldl(fun (Host, Total) ->
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ejabberd_auth:get_vh_registered_users_number(Host)
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+ Total
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end,
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0, ?MYHOSTS),
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?STATVAL((iolist_to_binary(integer_to_list(NumUsers))),
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<<"users">>);
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get_local_stat(_Server, _, Name) ->
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?STATERR(<<"404">>, <<"Not Found">>).
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get_node_stat(Node, Name)
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when Name == <<"time/uptime">> ->
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case catch ejabberd_cluster:call(Node, erlang, statistics,
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[wall_clock])
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of
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{badrpc, _Reason} ->
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?STATERR(<<"500">>, <<"Internal Server Error">>);
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CPUTime ->
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?STATVAL(list_to_binary(
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io_lib:format("~.3f",
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[element(1, CPUTime) / 1000])),
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<<"seconds">>)
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end;
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get_node_stat(Node, Name)
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when Name == <<"time/cputime">> ->
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case catch ejabberd_cluster:call(Node, erlang, statistics, [runtime])
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of
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{badrpc, _Reason} ->
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?STATERR(<<"500">>, <<"Internal Server Error">>);
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RunTime ->
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?STATVAL(list_to_binary(
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io_lib:format("~.3f",
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[element(1, RunTime) / 1000])),
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<<"seconds">>)
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end;
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get_node_stat(Node, Name)
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when Name == <<"users/online">> ->
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case catch ejabberd_cluster:call(Node, ejabberd_sm,
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dirty_get_my_sessions_list, [])
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of
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{badrpc, _Reason} ->
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?STATERR(<<"500">>, <<"Internal Server Error">>);
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Users ->
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?STATVAL((iolist_to_binary(integer_to_list(length(Users)))),
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<<"users">>)
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end;
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get_node_stat(Node, Name)
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when Name == <<"transactions/committed">> ->
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case catch ejabberd_cluster:call(Node, mnesia, system_info,
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[transaction_commits])
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of
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{badrpc, _Reason} ->
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?STATERR(<<"500">>, <<"Internal Server Error">>);
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Transactions ->
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?STATVAL((iolist_to_binary(integer_to_list(Transactions))),
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<<"transactions">>)
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end;
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get_node_stat(Node, Name)
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when Name == <<"transactions/aborted">> ->
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case catch ejabberd_cluster:call(Node, mnesia, system_info,
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[transaction_failures])
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of
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{badrpc, _Reason} ->
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?STATERR(<<"500">>, <<"Internal Server Error">>);
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Transactions ->
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?STATVAL((iolist_to_binary(integer_to_list(Transactions))),
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<<"transactions">>)
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end;
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get_node_stat(Node, Name)
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when Name == <<"transactions/restarted">> ->
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case catch ejabberd_cluster:call(Node, mnesia, system_info,
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[transaction_restarts])
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of
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{badrpc, _Reason} ->
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?STATERR(<<"500">>, <<"Internal Server Error">>);
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Transactions ->
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?STATVAL((iolist_to_binary(integer_to_list(Transactions))),
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<<"transactions">>)
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end;
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get_node_stat(Node, Name)
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when Name == <<"transactions/logged">> ->
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case catch ejabberd_cluster:call(Node, mnesia, system_info,
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[transaction_log_writes])
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of
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{badrpc, _Reason} ->
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?STATERR(<<"500">>, <<"Internal Server Error">>);
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Transactions ->
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?STATVAL((iolist_to_binary(integer_to_list(Transactions))),
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<<"transactions">>)
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end;
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get_node_stat(_, Name) ->
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?STATERR(<<"404">>, <<"Not Found">>).
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search_running_node(SNode) ->
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search_running_node(SNode,
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mnesia:system_info(running_db_nodes)).
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search_running_node(_, []) -> false;
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search_running_node(SNode, [Node | Nodes]) ->
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case iolist_to_binary(atom_to_list(Node)) of
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SNode -> Node;
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_ -> search_running_node(SNode, Nodes)
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end.
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mod_opt_type(iqdisc) -> fun gen_iq_handler:check_type/1;
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mod_opt_type(_) -> [iqdisc].
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