mirror of
https://github.com/processone/ejabberd.git
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779 lines
25 KiB
Erlang
779 lines
25 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : ejabberd_ctl.erl
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%%% Author : Alexey Shchepin <alexey@process-one.net>
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%%% Purpose : ejabberd command line admin tool
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%%% Created : 11 Jan 2004 by Alexey Shchepin <alexey@process-one.net>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2010 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
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%%% along with this program; if not, write to the Free Software
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%%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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%%% 02111-1307 USA
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%%%
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%%%----------------------------------------------------------------------
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%%% @headerfile "ejabberd_ctl.hrl"
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%%% @doc Management of ejabberdctl commands and frontend to ejabberd commands.
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%%%
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%%% An ejabberdctl command is an abstract function identified by a
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%%% name, with a defined number of calling arguments, that can be
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%%% defined in any Erlang module and executed using ejabberdctl
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%%% administration script.
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%%%
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%%% Note: strings cannot have blankspaces
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%%%
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%%% Does not support commands that have arguments with ctypes: list, tuple
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%%%
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%%% TODO: Update the guide
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%%% TODO: Mention this in the release notes
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%%% Note: the commands with several words use now the underline: _
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%%% It is still possible to call the commands with dash: -
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%%% but this is deprecated, and may be removed in a future version.
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-module(ejabberd_ctl).
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-author('alexey@process-one.net').
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-export([start/0,
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init/0,
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process/1,
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process2/2,
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register_commands/3,
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unregister_commands/3]).
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-include("ejabberd_ctl.hrl").
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-include("ejabberd_commands.hrl").
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-include("ejabberd.hrl").
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%%-----------------------------
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%% Module
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%%-----------------------------
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start() ->
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case init:get_plain_arguments() of
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[SNode | Args] ->
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SNode1 = case string:tokens(SNode, "@") of
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[_Node, _Server] ->
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SNode;
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_ ->
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case net_kernel:longnames() of
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true ->
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SNode ++ "@" ++ inet_db:gethostname() ++
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"." ++ inet_db:res_option(domain);
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false ->
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SNode ++ "@" ++ inet_db:gethostname();
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_ ->
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SNode
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end
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end,
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Node = list_to_atom(SNode1),
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Status = case rpc:call(Node, ?MODULE, process, [Args]) of
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{badrpc, Reason} ->
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?PRINT("Failed RPC connection to the node ~p: ~p~n",
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[Node, Reason]),
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%% TODO: show minimal start help
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?STATUS_BADRPC;
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S ->
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S
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end,
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halt(Status);
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_ ->
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print_usage(),
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halt(?STATUS_USAGE)
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end.
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init() ->
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ets:new(ejabberd_ctl_cmds, [named_table, set, public]),
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ets:new(ejabberd_ctl_host_cmds, [named_table, set, public]).
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%%-----------------------------
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%% ejabberdctl Command managment
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%%-----------------------------
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register_commands(CmdDescs, Module, Function) ->
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ets:insert(ejabberd_ctl_cmds, CmdDescs),
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ejabberd_hooks:add(ejabberd_ctl_process,
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Module, Function, 50),
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ok.
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unregister_commands(CmdDescs, Module, Function) ->
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lists:foreach(fun(CmdDesc) ->
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ets:delete_object(ejabberd_ctl_cmds, CmdDesc)
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end, CmdDescs),
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ejabberd_hooks:delete(ejabberd_ctl_process,
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Module, Function, 50),
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ok.
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%%-----------------------------
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%% Process
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%%-----------------------------
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%% The commands status, stop and restart are defined here to ensure
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%% they are usable even if ejabberd is completely stopped.
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process(["status"]) ->
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{InternalStatus, ProvidedStatus} = init:get_status(),
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?PRINT("The node ~p is ~p with status: ~p~n",
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[node(), InternalStatus, ProvidedStatus]),
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case lists:keysearch(ejabberd, 1, application:which_applications()) of
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false ->
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EjabberdLogPath = ejabberd_app:get_log_path(),
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?PRINT("ejabberd is not running in that node~n"
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"Check for error messages: ~s~n"
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"or other files in that directory.~n", [EjabberdLogPath]),
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?STATUS_ERROR;
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{value, {_, _, Version}} ->
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?PRINT("ejabberd ~s is running in that node~n", [Version]),
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?STATUS_SUCCESS
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end;
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process(["stop"]) ->
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%%ejabberd_cover:stop(),
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init:stop(),
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?STATUS_SUCCESS;
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process(["restart"]) ->
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init:restart(),
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?STATUS_SUCCESS;
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process(["mnesia"]) ->
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?PRINT("~p~n", [mnesia:system_info(all)]),
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?STATUS_SUCCESS;
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process(["mnesia", "info"]) ->
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mnesia:info(),
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?STATUS_SUCCESS;
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process(["mnesia", Arg]) when is_list(Arg) ->
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case catch mnesia:system_info(list_to_atom(Arg)) of
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{'EXIT', Error} -> ?PRINT("Error: ~p~n", [Error]);
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Return -> ?PRINT("~p~n", [Return])
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end,
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?STATUS_SUCCESS;
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%% The arguments --long and --dual are not documented because they are
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%% automatically selected depending in the number of columns of the shell
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process(["help" | Mode]) ->
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{MaxC, ShCode} = get_shell_info(),
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case Mode of
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[] ->
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print_usage(dual, MaxC, ShCode),
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?STATUS_USAGE;
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["--dual"] ->
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print_usage(dual, MaxC, ShCode),
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?STATUS_USAGE;
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["--long"] ->
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print_usage(long, MaxC, ShCode),
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?STATUS_USAGE;
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["--tags"] ->
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print_usage_tags(MaxC, ShCode),
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?STATUS_SUCCESS;
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["--tags", Tag] ->
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print_usage_tags(Tag, MaxC, ShCode),
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?STATUS_SUCCESS;
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["help"] ->
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print_usage_help(MaxC, ShCode),
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?STATUS_SUCCESS;
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[CmdString | _] ->
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{ok, CmdStringU, _} = regexp:gsub(CmdString, "-", "_"),
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print_usage_commands(CmdStringU, MaxC, ShCode),
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?STATUS_SUCCESS
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end;
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process(Args) ->
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AccessCommands = get_accesscommands(),
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{String, Code} = process2(Args, AccessCommands),
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case String of
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[] -> ok;
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_ ->
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io:format("~s~n", [String])
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end,
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Code.
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%% @spec (Args::[string()], AccessCommands) -> {String::string(), Code::integer()}
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process2(["--auth", User, Server, Pass | Args], AccessCommands) ->
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process2(Args, {User, Server, Pass}, AccessCommands);
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process2(Args, AccessCommands) ->
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process2(Args, noauth, AccessCommands).
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process2(Args, Auth, AccessCommands) ->
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case try_run_ctp(Args, Auth, AccessCommands) of
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{String, wrong_command_arguments}
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when is_list(String) ->
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io:format(lists:flatten(["\n" | String]++["\n"])),
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[CommandString | _] = Args,
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process(["help" | [CommandString]]),
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{lists:flatten(String), ?STATUS_ERROR};
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{String, Code}
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when is_list(String) and is_integer(Code) ->
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{lists:flatten(String), Code};
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String
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when is_list(String) ->
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{lists:flatten(String), ?STATUS_SUCCESS};
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Code
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when is_integer(Code) ->
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{"", Code};
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Other ->
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{"Erroneous result: " ++ io_lib:format("~p", [Other]), ?STATUS_ERROR}
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end.
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get_accesscommands() ->
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case ejabberd_config:get_local_option(ejabberdctl_access_commands) of
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ACs when is_list(ACs) -> ACs;
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_ -> []
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end.
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%%-----------------------------
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%% Command calling
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%%-----------------------------
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%% @spec (Args::[string()], Auth, AccessCommands) -> string() | integer() | {string(), integer()}
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try_run_ctp(Args, Auth, AccessCommands) ->
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try ejabberd_hooks:run_fold(ejabberd_ctl_process, false, [Args]) of
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false when Args /= [] ->
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try_call_command(Args, Auth, AccessCommands);
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false ->
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print_usage(),
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{"", ?STATUS_USAGE};
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Status ->
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{"", Status}
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catch
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exit:Why ->
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print_usage(),
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{io_lib:format("Error in ejabberd ctl process: ~p", [Why]), ?STATUS_USAGE};
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Error:Why ->
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%% In this case probably ejabberd is not started, so let's show Status
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process(["status"]),
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?PRINT("~n", []),
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{io_lib:format("Error in ejabberd ctl process: '~p' ~p", [Error, Why]), ?STATUS_USAGE}
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end.
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%% @spec (Args::[string()], Auth, AccessCommands) -> string() | integer() | {string(), integer()}
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try_call_command(Args, Auth, AccessCommands) ->
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try call_command(Args, Auth, AccessCommands) of
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{error, command_unknown} ->
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{io_lib:format("Error: command ~p not known.", [hd(Args)]), ?STATUS_ERROR};
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{error, wrong_number_parameters} ->
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{"Error: wrong number of parameters", ?STATUS_ERROR};
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Res ->
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Res
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catch
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A:Why ->
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Stack = erlang:get_stacktrace(),
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{io_lib:format("Problem '~p ~p' occurred executing the command.~nStacktrace: ~p", [A, Why, Stack]), ?STATUS_ERROR}
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end.
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%% @spec (Args::[string()], Auth, AccessCommands) -> string() | integer() | {string(), integer()} | {error, ErrorType}
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call_command([CmdString | Args], Auth, AccessCommands) ->
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{ok, CmdStringU, _} = regexp:gsub(CmdString, "-", "_"),
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Command = list_to_atom(CmdStringU),
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case ejabberd_commands:get_command_format(Command) of
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{error, command_unknown} ->
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{error, command_unknown};
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{ArgsFormat, ResultFormat} ->
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case (catch format_args(Args, ArgsFormat)) of
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ArgsFormatted when is_list(ArgsFormatted) ->
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Result = ejabberd_commands:execute_command(AccessCommands, Auth, Command,
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ArgsFormatted),
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format_result(Result, ResultFormat);
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{'EXIT', {function_clause,[{lists,zip,[A1, A2]} | _]}} ->
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{NumCompa, TextCompa} =
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case {length(A1), length(A2)} of
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{L1, L2} when L1 < L2 -> {L2-L1, "less argument"};
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{L1, L2} when L1 > L2 -> {L1-L2, "more argument"}
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end,
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{io_lib:format("Error: the command ~p requires ~p ~s.",
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[CmdString, NumCompa, TextCompa]),
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wrong_command_arguments}
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end
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end.
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%%-----------------------------
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%% Format arguments
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%%-----------------------------
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format_args(Args, ArgsFormat) ->
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lists:foldl(
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fun({{_ArgName, ArgFormat}, Arg}, Res) ->
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Formatted = format_arg(Arg, ArgFormat),
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Res ++ [Formatted]
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end,
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[],
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lists:zip(ArgsFormat, Args)).
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format_arg(Arg, integer) ->
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format_arg2(Arg, "~d");
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format_arg("", string) ->
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"";
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format_arg(Arg, string) ->
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NumChars = integer_to_list(string:len(Arg)),
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Parse = "~" ++ NumChars ++ "c",
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format_arg2(Arg, Parse).
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format_arg2(Arg, Parse)->
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{ok, [Arg2], _RemainingArguments} = io_lib:fread(Parse, Arg),
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Arg2.
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%%-----------------------------
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%% Format result
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%%-----------------------------
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format_result({error, ErrorAtom}, _) ->
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{io_lib:format("Error: ~p", [ErrorAtom]), make_status(error)};
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format_result(Atom, {_Name, atom}) ->
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io_lib:format("~p", [Atom]);
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format_result(Int, {_Name, integer}) ->
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io_lib:format("~p", [Int]);
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format_result(String, {_Name, string}) ->
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io_lib:format("~s", [String]);
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format_result(Code, {_Name, rescode}) ->
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make_status(Code);
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format_result({Code, Text}, {_Name, restuple}) ->
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{io_lib:format("~s", [Text]), make_status(Code)};
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%% The result is a list of something: [something()]
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format_result([], {_Name, {list, _ElementsDef}}) ->
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"";
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format_result([FirstElement | Elements], {_Name, {list, ElementsDef}}) ->
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%% Start formatting the first element
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[format_result(FirstElement, ElementsDef) |
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%% If there are more elements, put always first a newline character
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lists:map(
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fun(Element) ->
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["\n" | format_result(Element, ElementsDef)]
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end,
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Elements)];
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%% The result is a tuple with several elements: {something1(), something2(),...}
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%% NOTE: the elements in the tuple are separated with tabular characters,
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%% if a string is empty, it will be difficult to notice in the shell,
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%% maybe a different separation character should be used, like ;;?
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format_result(ElementsTuple, {_Name, {tuple, ElementsDef}}) ->
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ElementsList = tuple_to_list(ElementsTuple),
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[{FirstE, FirstD} | ElementsAndDef] = lists:zip(ElementsList, ElementsDef),
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[format_result(FirstE, FirstD) |
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lists:map(
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fun({Element, ElementDef}) ->
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["\t" | format_result(Element, ElementDef)]
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end,
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ElementsAndDef)].
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make_status(ok) -> ?STATUS_SUCCESS;
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make_status(true) -> ?STATUS_SUCCESS;
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make_status(_Error) -> ?STATUS_ERROR.
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get_list_commands() ->
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try ejabberd_commands:list_commands() of
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Commands ->
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[tuple_command_help(Command)
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|| {N,_,_}=Command <- Commands,
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%% Don't show again those commands, because they are already
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%% announced by ejabberd_ctl itself
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N /= status, N /= stop, N /= restart]
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catch
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exit:_ ->
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[]
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end.
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%% Return: {string(), [string()], string()}
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tuple_command_help({Name, Args, Desc}) ->
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Arguments = [atom_to_list(ArgN) || {ArgN, _ArgF} <- Args],
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Prepend = case is_supported_args(Args) of
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true -> "";
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false -> "*"
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end,
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CallString = atom_to_list(Name),
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{CallString, Arguments, Prepend ++ Desc}.
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is_supported_args(Args) ->
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lists:all(
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fun({_Name, Format}) ->
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(Format == integer)
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or (Format == string)
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end,
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Args).
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get_list_ctls() ->
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case catch ets:tab2list(ejabberd_ctl_cmds) of
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{'EXIT', _} -> [];
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Cs -> [{NameArgs, [], Desc} || {NameArgs, Desc} <- Cs]
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end.
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%%-----------------------------
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%% Print help
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%%-----------------------------
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%% Bold
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-define(B1, "\e[1m").
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-define(B2, "\e[22m").
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-define(B(S), case ShCode of true -> [?B1, S, ?B2]; false -> S end).
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%% Underline
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-define(U1, "\e[4m").
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-define(U2, "\e[24m").
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-define(U(S), case ShCode of true -> [?U1, S, ?U2]; false -> S end).
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print_usage() ->
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{MaxC, ShCode} = get_shell_info(),
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print_usage(dual, MaxC, ShCode).
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print_usage(HelpMode, MaxC, ShCode) ->
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AllCommands =
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[
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{"status", [], "Get ejabberd status"},
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{"stop", [], "Stop ejabberd"},
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{"restart", [], "Restart ejabberd"},
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{"help", ["[--tags [tag] | com?*]"], "Show help (try: ejabberdctl help help)"},
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{"mnesia", ["[info]"], "show information of Mnesia system"}] ++
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get_list_commands() ++
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get_list_ctls(),
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?PRINT(
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["Usage: ", ?B("ejabberdctl"), " [--node ", ?U("nodename"), "] [--auth ",
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?U("user"), " ", ?U("host"), " ", ?U("password"), "] ",
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?U("command"), " [", ?U("options"), "]\n"
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"\n"
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"Available commands in this ejabberd node:\n"], []),
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print_usage_commands(HelpMode, MaxC, ShCode, AllCommands),
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?PRINT(
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["\n"
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"Examples:\n"
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" ejabberdctl restart\n"
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" ejabberdctl --node ejabberd@host restart\n"],
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[]).
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print_usage_commands(HelpMode, MaxC, ShCode, Commands) ->
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CmdDescsSorted = lists:keysort(1, Commands),
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%% What is the length of the largest command?
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{CmdArgsLenDescsSorted, Lens} =
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lists:mapfoldl(
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fun({Cmd, Args, Desc}, Lengths) ->
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Len =
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length(Cmd) +
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lists:foldl(fun(Arg, R) ->
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R + 1 + length(Arg)
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end,
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0,
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Args),
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{{Cmd, Args, Len, Desc}, [Len | Lengths]}
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end,
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|
[],
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CmdDescsSorted),
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MaxCmdLen = case Lens of
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[] -> 80;
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_ -> lists:max(Lens)
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end,
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|
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%% For each command in the list of commands
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%% Convert its definition to a line
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FmtCmdDescs = format_command_lines(CmdArgsLenDescsSorted, MaxCmdLen, MaxC, ShCode, HelpMode),
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?PRINT([FmtCmdDescs], []).
|
|
|
|
|
|
%% Get some info about the shell:
|
|
%% how many columns of width
|
|
%% and guess if it supports text formatting codes.
|
|
get_shell_info() ->
|
|
%% This function was introduced in OTP R12B-0
|
|
try io:columns() of
|
|
{ok, C} -> {C-2, true};
|
|
{error, enotsup} -> {78, false}
|
|
catch
|
|
_:_ -> {78, false}
|
|
end.
|
|
|
|
%% Split this command description in several lines of proper length
|
|
prepare_description(DescInit, MaxC, Desc) ->
|
|
Words = string:tokens(Desc, " "),
|
|
prepare_long_line(DescInit, MaxC, Words).
|
|
|
|
prepare_long_line(DescInit, MaxC, Words) ->
|
|
MaxSegmentLen = MaxC - DescInit,
|
|
MarginString = lists:duplicate(DescInit, $\s), % Put spaces
|
|
[FirstSegment | MoreSegments] = split_desc_segments(MaxSegmentLen, Words),
|
|
MoreSegmentsMixed = mix_desc_segments(MarginString, MoreSegments),
|
|
[FirstSegment | MoreSegmentsMixed].
|
|
|
|
mix_desc_segments(MarginString, Segments) ->
|
|
[["\n", MarginString, Segment] || Segment <- Segments].
|
|
|
|
split_desc_segments(MaxL, Words) ->
|
|
join(MaxL, Words).
|
|
|
|
%% Join words in a segment,
|
|
%% but stop adding to a segment if adding this word would pass L
|
|
join(L, Words) ->
|
|
join(L, Words, 0, [], []).
|
|
|
|
join(_L, [], _LenLastSeg, LastSeg, ResSeg) ->
|
|
ResSeg2 = [lists:reverse(LastSeg) | ResSeg],
|
|
lists:reverse(ResSeg2);
|
|
join(L, [Word | Words], LenLastSeg, LastSeg, ResSeg) ->
|
|
LWord = length(Word),
|
|
case LWord + LenLastSeg < L of
|
|
true ->
|
|
%% This word fits in the last segment
|
|
%% If this word ends with "\n", reset column counter
|
|
case string:str(Word, "\n") of
|
|
0 ->
|
|
join(L, Words, LenLastSeg+LWord+1, [" ", Word | LastSeg], ResSeg);
|
|
_ ->
|
|
join(L, Words, LWord+1, [" ", Word | LastSeg], ResSeg)
|
|
end;
|
|
false ->
|
|
join(L, Words, LWord, [" ", Word], [lists:reverse(LastSeg) | ResSeg])
|
|
end.
|
|
|
|
format_command_lines(CALD, MaxCmdLen, MaxC, ShCode, dual)
|
|
when MaxC - MaxCmdLen < 40 ->
|
|
%% If the space available for descriptions is too narrow, enforce long help mode
|
|
format_command_lines(CALD, MaxCmdLen, MaxC, ShCode, long);
|
|
|
|
format_command_lines(CALD, MaxCmdLen, MaxC, ShCode, dual) ->
|
|
lists:map(
|
|
fun({Cmd, Args, CmdArgsL, Desc}) ->
|
|
DescFmt = prepare_description(MaxCmdLen+4, MaxC, Desc),
|
|
[" ", ?B(Cmd), " ", [[?U(Arg), " "] || Arg <- Args], string:chars($\s, MaxCmdLen - CmdArgsL + 1),
|
|
DescFmt, "\n"]
|
|
end, CALD);
|
|
|
|
format_command_lines(CALD, _MaxCmdLen, MaxC, ShCode, long) ->
|
|
lists:map(
|
|
fun({Cmd, Args, _CmdArgsL, Desc}) ->
|
|
DescFmt = prepare_description(8, MaxC, Desc),
|
|
["\n ", ?B(Cmd), " ", [[?U(Arg), " "] || Arg <- Args], "\n", " ",
|
|
DescFmt, "\n"]
|
|
end, CALD).
|
|
|
|
|
|
%%-----------------------------
|
|
%% Print Tags
|
|
%%-----------------------------
|
|
|
|
print_usage_tags(MaxC, ShCode) ->
|
|
?PRINT("Available tags and commands:", []),
|
|
TagsCommands = ejabberd_commands:get_tags_commands(),
|
|
lists:foreach(
|
|
fun({Tag, Commands} = _TagCommands) ->
|
|
?PRINT(["\n\n ", ?B(Tag), "\n "], []),
|
|
Words = lists:sort(Commands),
|
|
Desc = prepare_long_line(5, MaxC, Words),
|
|
?PRINT(Desc, [])
|
|
end,
|
|
TagsCommands),
|
|
?PRINT("\n\n", []).
|
|
|
|
print_usage_tags(Tag, MaxC, ShCode) ->
|
|
?PRINT(["Available commands with tag ", ?B(Tag), ":", "\n"], []),
|
|
HelpMode = long,
|
|
TagsCommands = ejabberd_commands:get_tags_commands(),
|
|
CommandsNames = case lists:keysearch(Tag, 1, TagsCommands) of
|
|
{value, {Tag, CNs}} -> CNs;
|
|
false -> []
|
|
end,
|
|
CommandsList = lists:map(
|
|
fun(NameString) ->
|
|
C = ejabberd_commands:get_command_definition(list_to_atom(NameString)),
|
|
#ejabberd_commands{name = Name,
|
|
args = Args,
|
|
desc = Desc} = C,
|
|
tuple_command_help({Name, Args, Desc})
|
|
end,
|
|
CommandsNames),
|
|
print_usage_commands(HelpMode, MaxC, ShCode, CommandsList),
|
|
?PRINT("\n", []).
|
|
|
|
|
|
%%-----------------------------
|
|
%% Print usage of 'help' command
|
|
%%-----------------------------
|
|
|
|
print_usage_help(MaxC, ShCode) ->
|
|
LongDesc =
|
|
["The special 'help' ejabberdctl command provides help of ejabberd commands.\n\n"
|
|
"The format is:\n ", ?B("ejabberdctl"), " ", ?B("help"), " [", ?B("--tags"), " ", ?U("[tag]"), " | ", ?U("com?*"), "]\n\n"
|
|
"The optional arguments:\n"
|
|
" ",?B("--tags")," Show all tags and the names of commands in each tag\n"
|
|
" ",?B("--tags"), " ", ?U("tag")," Show description of commands in this tag\n"
|
|
" ",?U("command")," Show detailed description of the command\n"
|
|
" ",?U("com?*")," Show detailed description of commands that match this glob.\n"
|
|
" You can use ? to match a simple character,\n"
|
|
" and * to match several characters.\n"
|
|
"\n",
|
|
"Some example usages:\n",
|
|
" ejabberdctl help\n",
|
|
" ejabberdctl help --tags\n",
|
|
" ejabberdctl help --tags accounts\n",
|
|
" ejabberdctl help register\n",
|
|
" ejabberdctl help regist*\n",
|
|
"\n",
|
|
"Please note that 'ejabberdctl help' shows all ejabberd commands,\n",
|
|
"even those that cannot be used in the shell with ejabberdctl.\n",
|
|
"Those commands can be identified because the description starts with: *"],
|
|
ArgsDef = [],
|
|
C = #ejabberd_commands{
|
|
desc = "Show help of ejabberd commands",
|
|
longdesc = LongDesc,
|
|
args = ArgsDef,
|
|
result = {help, string}},
|
|
print_usage_command("help", C, MaxC, ShCode).
|
|
|
|
|
|
%%-----------------------------
|
|
%% Print usage command
|
|
%%-----------------------------
|
|
|
|
%% @spec (CmdSubString::string(), MaxC::integer(), ShCode::boolean()) -> ok
|
|
print_usage_commands(CmdSubString, MaxC, ShCode) ->
|
|
%% Get which command names match this substring
|
|
AllCommandsNames = [atom_to_list(Name) || {Name, _, _} <- ejabberd_commands:list_commands()],
|
|
Cmds = filter_commands(AllCommandsNames, CmdSubString),
|
|
case Cmds of
|
|
[] -> io:format("Error: not command found that match: ~p~n", [CmdSubString]);
|
|
_ -> print_usage_commands2(lists:sort(Cmds), MaxC, ShCode)
|
|
end.
|
|
|
|
print_usage_commands2(Cmds, MaxC, ShCode) ->
|
|
%% Then for each one print it
|
|
lists:mapfoldl(
|
|
fun(Cmd, Remaining) ->
|
|
print_usage_command(Cmd, MaxC, ShCode),
|
|
case Remaining > 1 of
|
|
true -> ?PRINT([" ", lists:duplicate(MaxC, 126), " \n"], []);
|
|
false -> ok
|
|
end,
|
|
{ok, Remaining-1}
|
|
end,
|
|
length(Cmds),
|
|
Cmds).
|
|
|
|
filter_commands(All, SubString) ->
|
|
case lists:member(SubString, All) of
|
|
true -> [SubString];
|
|
false -> filter_commands_regexp(All, SubString)
|
|
end.
|
|
|
|
filter_commands_regexp(All, Glob) ->
|
|
RegExp = regexp:sh_to_awk(Glob),
|
|
lists:filter(
|
|
fun(Command) ->
|
|
case regexp:first_match(Command, RegExp) of
|
|
{match, _, _} ->
|
|
true;
|
|
_ ->
|
|
false
|
|
end
|
|
end,
|
|
All).
|
|
|
|
%% @spec (Cmd::string(), MaxC::integer(), ShCode::boolean()) -> ok
|
|
print_usage_command(Cmd, MaxC, ShCode) ->
|
|
Name = list_to_atom(Cmd),
|
|
case ejabberd_commands:get_command_definition(Name) of
|
|
command_not_found ->
|
|
io:format("Error: command ~p not known.~n", [Cmd]);
|
|
C ->
|
|
print_usage_command(Cmd, C, MaxC, ShCode)
|
|
end.
|
|
|
|
print_usage_command(Cmd, C, MaxC, ShCode) ->
|
|
#ejabberd_commands{
|
|
tags = TagsAtoms,
|
|
desc = Desc,
|
|
longdesc = LongDesc,
|
|
args = ArgsDef,
|
|
result = ResultDef} = C,
|
|
|
|
NameFmt = [" ", ?B("Command Name"), ": ", Cmd, "\n"],
|
|
|
|
%% Initial indentation of result is 13 = length(" Arguments: ")
|
|
Args = [format_usage_ctype(ArgDef, 13) || ArgDef <- ArgsDef],
|
|
ArgsMargin = lists:duplicate(13, $\s),
|
|
ArgsListFmt = case Args of
|
|
[] -> "\n";
|
|
_ -> [ [Arg, "\n", ArgsMargin] || Arg <- Args]
|
|
end,
|
|
ArgsFmt = [" ", ?B("Arguments"), ": ", ArgsListFmt],
|
|
|
|
%% Initial indentation of result is 11 = length(" Returns: ")
|
|
ResultFmt = format_usage_ctype(ResultDef, 11),
|
|
ReturnsFmt = [" ",?B("Returns"),": ", ResultFmt],
|
|
|
|
XmlrpcFmt = "", %%+++ [" ",?B("XML-RPC"),": ", format_usage_xmlrpc(ArgsDef, ResultDef), "\n\n"],
|
|
|
|
TagsFmt = [" ",?B("Tags"),": ", prepare_long_line(8, MaxC, [atom_to_list(TagA) || TagA <- TagsAtoms])],
|
|
|
|
DescFmt = [" ",?B("Description"),": ", prepare_description(15, MaxC, Desc)],
|
|
|
|
LongDescFmt = case LongDesc of
|
|
"" -> "";
|
|
_ -> ["", prepare_description(0, MaxC, LongDesc), "\n\n"]
|
|
end,
|
|
|
|
NoteEjabberdctl = case is_supported_args(ArgsDef) of
|
|
true -> "";
|
|
false -> [" ", ?B("Note:"), " This command cannot be executed using ejabberdctl. Try ejabberd_xmlrpc.\n\n"]
|
|
end,
|
|
|
|
?PRINT(["\n", NameFmt, "\n", ArgsFmt, "\n", ReturnsFmt, "\n\n", XmlrpcFmt, TagsFmt, "\n\n", DescFmt, "\n\n", LongDescFmt, NoteEjabberdctl], []).
|
|
|
|
format_usage_ctype({Name, Type}, _Indentation)
|
|
when (Type==atom) or (Type==integer) or (Type==string) or (Type==rescode) or (Type==restuple)->
|
|
io_lib:format("~p::~p", [Name, Type]);
|
|
|
|
format_usage_ctype({Name, {list, ElementDef}}, Indentation) ->
|
|
NameFmt = atom_to_list(Name),
|
|
Indentation2 = Indentation + length(NameFmt) + 4,
|
|
ElementFmt = format_usage_ctype(ElementDef, Indentation2),
|
|
[NameFmt, "::[ ", ElementFmt, " ]"];
|
|
|
|
format_usage_ctype({Name, {tuple, ElementsDef}}, Indentation) ->
|
|
NameFmt = atom_to_list(Name),
|
|
Indentation2 = Indentation + length(NameFmt) + 4,
|
|
ElementsFmt = format_usage_tuple(ElementsDef, Indentation2),
|
|
[NameFmt, "::{ " | ElementsFmt].
|
|
|
|
format_usage_tuple([], _Indentation) ->
|
|
[];
|
|
format_usage_tuple([ElementDef], Indentation) ->
|
|
[format_usage_ctype(ElementDef, Indentation) , " }"];
|
|
format_usage_tuple([ElementDef | ElementsDef], Indentation) ->
|
|
ElementFmt = format_usage_ctype(ElementDef, Indentation),
|
|
MarginString = lists:duplicate(Indentation, $\s), % Put spaces
|
|
[ElementFmt, ",\n", MarginString, format_usage_tuple(ElementsDef, Indentation)].
|
|
|
|
|
|
%%-----------------------------
|
|
%% Command managment
|
|
%%-----------------------------
|
|
|
|
%%+++
|
|
%% Struct(Integer res) create_account(Struct(String user, String server, String password))
|
|
%%format_usage_xmlrpc(ArgsDef, ResultDef) ->
|
|
%% ["aaaa bbb ccc"].
|
|
|