POE::Component::IRC::Plugin::BotCommand(3pm)		User Contributed Perl Documentation	      POE::Component::IRC::Plugin::BotCommand(3pm)

NAME

       POE::Component::IRC::Plugin::BotCommand - A PoCo-IRC plugin which handles commands issued to your bot

SYNOPSIS

	use POE;
	use POE::Component::Client::DNS;
	use POE::Component::IRC;
	use POE::Component::IRC::Plugin::BotCommand;

	my @channels = ('#channel1', '#channel2');
	my $dns = POE::Component::Client::DNS->spawn();
	my $irc = POE::Component::IRC->spawn(
	    nick   => 'YourBot',
	    server => 'some.irc.server',
	);

	POE::Session->create(
	    package_states => [
		main => [ qw(_start irc_001 irc_botcmd_slap irc_botcmd_lookup dns_response) ],
	    ],
	);

	$poe_kernel->run();

	sub _start {
	    $irc->plugin_add('BotCommand', POE::Component::IRC::Plugin::BotCommand->new(
		Commands => {
		    slap   => 'Takes one argument: a nickname to slap.',
		    lookup => 'Takes two arguments: a record type (optional), and a host.',
		}
	    ));
	    $irc->yield(register => qw(001 botcmd_slap botcmd_lookup));
	    $irc->yield(connect => { });
	}

	# join some channels
	sub irc_001 {
	    $irc->yield(join => $_) for @channels;
	    return;
	}

	# the good old slap
	sub irc_botcmd_slap {
	    my $nick = (split /!/, $_[ARG0])[0];
	    my ($where, $arg) = @_[ARG1, ARG2];
	    $irc->yield(ctcp => $where, "ACTION slaps $arg");
	    return;
	}

	# non-blocking dns lookup
	sub irc_botcmd_lookup {
	    my $nick = (split /!/, $_[ARG0])[0];
	    my ($where, $arg) = @_[ARG1, ARG2];
	    my ($type, $host) = $arg =~ /^(?:(w+) )?(S+)/;

	    my $res = $dns->resolve(
		event => 'dns_response',
		host => $host,
		type => $type,
		context => {
		    where => $where,
		    nick  => $nick,
		},
	    );
	    $poe_kernel->yield(dns_response => $res) if $res;
	    return;
	}

	sub dns_response {
	    my $res = $_[ARG0];
	    my @answers = map { $_->rdatastr } $res->{response}->answer() if $res->{response};

	    $irc->yield(
		'notice',
		$res->{context}->{where},
		$res->{context}->{nick} . (@answers
		    ? ": @answers"
		    : ': no answers for "' . $res->{host} . '"')
	    );

	    return;
	}

DESCRIPTION

       POE::Component::IRC::Plugin::BotCommand is a POE::Component::IRC plugin. It provides you with a standard interface to define bot commands
       and lets you know when they are issued. Commands are accepted as channel or private messages.

       The plugin will respond to the 'help' command by default, listing available commands and information on how to use them. However, if you
       add a help command yourself, that one will be used instead.

METHODS

   "new"
       'Commands', a hash reference, with your commands as keys, and usage information as values. If the usage string contains newlines, the
       plugin will send one message for each line.

       Accepting commands

       'In_channels', a boolean value indicating whether to accept commands in channels. Default is true.

       'In_private', a boolean value indicating whether to accept commands in private. Default is true.

       'Addressed', requires users to address the bot by name in order to issue commands. Default is true.

       'Prefix', a string which all commands must be prefixed with (except in channels when 'Addressed' is true). Default is '!'. You can set it
       to '' to allow bare commands.

       'Bare_private', a boolean value indicating whether bare commands (without the prefix) are allowed in private messages. Default is false.

       Authorization

       'Auth_sub', a subroutine reference which, if provided, will be called for every command. The subroutine will be called in list context. If
       the first value returned is true, the command will be processed as normal. If the value is false, then no events will be generated, and an
       error message will possibly be sent back to the user.

       You can override the default error message by returning a second value, an array reference of (zero or more) strings. Each string will be
       sent as a message to the user.

       Your subroutine will be called with the following arguments:

       1. The IRC component object
       2. The nick!user@host of the user
       3. The place where the command was issued (the nickname of the user if it was in private)
       4. The name of the command
       5. The command argument string

       'Ignore_unauthorized', if true, the plugin will ignore unauthorized commands, rather than printing an error message upon receiving them.
       This is only relevant if 'Auth_sub' is also supplied. Default is false.

       Miscellaneous

       'Ignore_unknown', if true, the plugin will ignore undefined commands, rather than printing a help message upon receiving them. Default is
       false.

       'Method', how you want help messages to be delivered. Valid options are 'notice' (the default) and 'privmsg'.

       'Eat', set to true to make the plugin hide "irc_public" events from other plugins when they look like commands. Probably only useful when a
       'Prefix' is defined. Default is false.

       Returns a plugin object suitable for feeding to POE::Component::IRC's "plugin_add" method.

   "add"
       Adds a new command. Takes two arguments, the name of the command, and a string containing its usage information. Returns false if the
       command has already been defined, true otherwise.

   "remove"
       Removes a command. Takes one argument, the name of the command. Returns false if the command wasn't defined to begin with, true otherwise.

   "list"
       Takes no arguments. Returns a list of key/value pairs, the keys being the command names and the values being the usage strings.

OUTPUT EVENTS

   "irc_botcmd_*"
       You will receive an event like this for every valid command issued. E.g. if 'slap' were a valid command, you would receive an
       "irc_botcmd_slap" event every time someone issued that command. It receives the following arguments:

       o   "ARG0": the nick!hostmask of the user who issued the command.

       o   "ARG1" is the name of the channel in which the command was issued, or the sender's nickname if this was a private message.

       o   "ARG2": a string of arguments to the command, or undef if there were no arguments

AUTHOR

       Hinrik Oern Sigur`sson, hinrik.sig@gmail.com

perl v5.14.2							    2011-12-07			      POE::Component::IRC::Plugin::BotCommand(3pm)