NAME
    POE::Component::Server::IRC - A fully event-driven networkable IRC
    server daemon module.

SYNOPSIS
     # A fairly simple example:
     use strict;
     use warnings;
     use POE qw(Component::Server::IRC);

     my %config = (
         servername => 'simple.poco.server.irc', 
         nicklen    => 15,
         network    => 'SimpleNET'
     );

     my $pocosi = POE::Component::Server::IRC->spawn( config => \%config );

     POE::Session->create(
         package_states => [
             'main' => [qw(_start _default)],
         ],
         heap => { ircd => $pocosi },
     );

     $poe_kernel->run();

     sub _start {
         my ($kernel, $heap) = @_[KERNEL, HEAP];

         $heap->{ircd}->yield('register', 'all');

         # Anyone connecting from the loopback gets spoofed hostname
         $heap->{ircd}->add_auth(
             mask     => '*@localhost',
             spoof    => 'm33p.com',
             no_tilde => 1,
         );

         # We have to add an auth as we have specified one above.
         $heap->{ircd}->add_auth(mask => '*@*');

         # Start a listener on the 'standard' IRC port.
         $heap->{ircd}->add_listener(port => 6667);

         # Add an operator who can connect from localhost
         $heap->{ircd}->add_operator(
             {
                 username => 'moo',
                 password => 'fishdont',
             }
         );
     }

     sub _default {
         my ($event, $args) = @_[ARG0 .. $#_];

         print "$event: ";
         for my $arg (@$args) {

         if (ref($arg) eq 'ARRAY') {
             print "[", join ( ", ", @$arg ), "] ";
         }
         elsif (ref($arg) eq 'HASH') {
             print "{", join ( ", ", %$arg ), "} ";
         }
         else {
             print "'$arg' ";
         }

         print "\n";
      }

DESCRIPTION
    POE::Component::Server::IRC is a POE component which implements an IRC
    server (also referred to as an IRC daemon or IRCd). It should be
    compliant with the pertient IRC RFCs and is based on reverse engineering
    Hybrid IRCd behaviour with regards to interactions with IRC clients and
    other IRC servers.

    Yes, that's right. POE::Component::Server::IRC is capable of linking to
    foreign IRC networks. It supports the TS5 server to server protocol and
    has been tested with linking to Hybrid-7 based networks. It should in
    theory work with any TS5-based IRC network.

    POE::Component::Server::IRC also has a services API, which enables one
    to extend the IRCd to create IRC Services. This is fully event-driven
    (of course =]). There is also a Plugin system, similar to that sported
    by POE::Component::IRC.

    Note: This is a subclass of POE::Component::Server::IRC::Backend. You
    should read its documentation too.

CONSTRUCTOR
  "spawn"
    Returns a new instance of the component. Takes the following parameters:

    *   'config', a hashref of configuration options, see the "configure"
        method for details.

    Any other parameters will be passed along to
    POE::Component::Server::IRC::Backend's "create" method.

    If the component is spawned from within another session then that
    session will automagically be registered with the component to receive
    events and be sent an "ircd_registered" event.

METHODS
  Information
   "server_name"
    No arguments, returns the name of the ircd.

   "server_version"
    No arguments, returns the software version of the ircd.

   "server_created"
    No arguments, returns a string signifying when the ircd was created.

   "server_config"
    Takes one argument, the server configuration value to query.

  Configuration
    These methods provide mechanisms for configuring and controlling the
    IRCd component.

   "configure"
    Configures your new shiny IRCd.

    Takes a number of parameters:

    *   'servername', a name to bless your shiny new IRCd with, defaults to
        'poco.server.irc';

    *   'serverdesc', a description for your IRCd, defaults to 'Poco? POCO?
        POCO!';

    *   'network', the name of the IRC network you will be creating,
        defaults to 'poconet';

    *   'nicklen', the max length of nicknames to support, defaults to 9.
        Note: the nicklen must be the same on all servers on your IRC
        network;

    *   'maxtargets', max number of targets a user can send PRIVMSG/NOTICE's
        to, defaults to 4;

    *   'maxchannels', max number of channels users may join, defaults to
        15;

    *   'version', change the server version that is reported;

    *   'admin', an arrayref consisting of the 3 lines that will be returned
        by ADMIN;

    *   'info', an arrayref consisting of lines to be returned by INFO;

    *   'ophacks', set to true to enable oper hacks. Default is false;

    *   'whoisactually', setting this to a false value means that only opers
        can see 338. Defaults to true;

   "add_auth"
    By default the IRCd allows any user to connect to the server without a
    password. Configuring auths enables you to control who can connect and
    set passwords required to connect.

    Takes the following parameters:

    *   'mask', a user@host or user@ipaddress mask to match against,
        mandatory;

    *   'password', if specified, any client matching the mask must provide
        this to connect;

    *   'spoof', if specified, any client matching the mask will have their
        hostname changed to this;

    *   'no_tilde', if specified, the '~' prefix is removed from their
        username;

    Auth masks are processed in order of addition.

    If auth masks have been defined, then a connecting user *must* match one
    of the masks in order to be authorised to connect. This is a feature >;)

   "del_auth"
    Takes a single argument, the mask to remove.

   "add_operator"
    This adds an O line to the IRCd. Takes a number of parameters:

    *   'username', the username of the IRC oper, mandatory;

    *   'password', the password, mandatory;

    *   'ipmask', either a scalar ipmask or an arrayref of Net::Netmask
        objects;

    A scalar ipmask can contain '*' to match any number of characters or '?'
    to match one character. If no 'ipmask' is provided, operators are only
    allowed to OPER from the loopback interface.

    'password' can be either plain-text, "crypt"'d or unix/apache md5. See
    the "mkpasswd" function in POE::Component::Server::IRC::Common for how
    to generate passwords.

   "del_operator"
    Takes a single argument, the username to remove.

   "add_peer"
    Adds peer servers that we will allow to connect to us and who we will
    connect to. Takes the following parameters:

    *   'name', the name of the server. This is the IRC name, not hostname,
        mandatory;

    *   'pass', the password they must supply to us, mandatory;

    *   'rpass', the password we need to supply to them, mandatory;

    *   'type', the type of server, 'c' for a connecting server, 'r' for one
        that we will connect to;

    *   'raddress', the remote address to connect to, implies 'type' eq 'r';

    *   'rport', the remote port to connect to, default is 6667;

    *   'ipmask', either a scalar ipmask or an arrayref of Net::Netmask
        objects;

    *   'auto', if set to true value will automatically connect to remote
        server if type is 'r';

    *   'zip', set to a true value to enable ziplink support. This must be
        done on both ends of the connection. Requires
        POE::Filter::Zlib::Stream;

   "del_peer"
    Takes a single argument, the peer to remove. This does not disconnect
    the said peer if it is currently connected.

  State queries
    The following methods allow you to query state information regarding
    nicknames, channels, and peers.

   "state_nicks"
    Takes no arguments, returns a list of all nicknames in the state.

   "state_chans"
    Takes no arguments, returns a list of all channels in the state.

   "state_peers"
    Takes no arguments, returns a list of all irc servers in the state.

   "state_nick_exists"
    Takes one argument, a nickname, returns true or false dependent on
    whether the given nickname exists or not.

   "state_chan_exists"
    Takes one argument, a channel name, returns true or false dependent on
    whether the given channel exists or not.

   "state_peer_exists"
    Takes one argument, a peer server name, returns true or false dependent
    on whether the given peer exists or not.

   "state_user_full"
    Takes one argument, a nickname, returns that users full nick!user@host
    if they exist, undef if they don't.

   "state_user_nick"
    Takes one argument, a nickname, returns the proper nickname for that
    user. Returns undef if the nick doesn't exist.

   "state_user_umode"
    Takes one argument, a nickname, returns that users mode setting.

   "state_user_is_operator"
    Takes one argument, a nickname, returns true or false dependent on
    whether the given nickname is an IRC operator or not.

   "state_user_chans"
    Takes one argument, a nickname, returns a list of channels that that
    nick is a member of.

   "state_user_server"
    Takes one argument, a nickname, returns the name of the peer server that
    that user is connected from.

   "state_chan_list"
    Takes one argument, a channel name, returns a list of the member nicks
    on that channel.

   "state_chan_list_prefixed"
    Takes one argument, a channel name, returns a list of the member nicks
    on that channel, nicknames will be prefixed with @%+ if they are +o +h
    or +v, respectively.

   "state_chan_topic"
    Takes one argument, a channel name, returns undef if no topic is set on
    that channel, or an arrayref consisting of the topic, who set it and the
    time they set it.

   "state_chan_mode_set"
    Takes two arguments, a channel name and a channel mode character.
    Returns true if that channel mode is set, false otherwise.

   "state_is_chan_member"
    Takes two arguments, a nick and a channel name. Returns true if that
    nick is on channel, false otherwise.

   "state_user_chan_mode"
    Takes two arguments, a nick and a channel name. Returns that nicks
    status (+ohv or '') on that channel.

   "state_is_chan_op"
    Takes two arguments, a nick and a channel name. Returns true if that
    nick is an channel operator, false otherwise.

   "state_is_chan_hop"
    Takes two arguments, a nick and a channel name. Returns true if that
    nick is an channel half-operator, false otherwise.

   "state_has_chan_voice"
    Takes two arguments, a nick and a channel name. Returns true if that
    nick has channel voice, false otherwise.

  Server actions
   "daemon_server_kill"
    Takes two arguments, a nickname and a comment (which is optional);
    Issues a SERVER KILL of the given nick;

   "daemon_server_mode"
    First argument is a channel name, remaining arguments are channel modes
    and their parameters to apply.

   "daemon_server_kick"
    Takes two arguments that are mandatory and an optional one: channel
    name, nickname of the user to kick and a pithy comment.

   "daemon_server_remove"
    Takes two arguments that are mandatory and an optional one: channel
    name, nickname of the user to remove and a pithy comment.

   "daemon_server_wallops"
    Takes one argument, the message text to send.

INPUT EVENTS
    These are POE events that can be sent to the component.

  "add_spoofed_nick"
    Takes a single argument a hashref which should have the following keys:

    *   'nick', the nickname to add, mandatory;

    *   'user', the ident you want the nick to have, defaults to the same as
        the nick;

    *   'hostname', the hostname, defaults to the server name;

    *   'umode', specify whether this is to be an IRCop etc, defaults to
        'i';

    *   'ts', unixtime, default is time(), best not to meddle;

    Note: spoofed nicks are currently only really functional for use as IRC
    services.

  "del_spoofed_nick"
    Takes a single mandatory argument, the spoofed nickname to remove.
    Optionally, you may specify a quit message for the spoofed nick.

  Spoofed nick commands
    The following input events are for the benefit of spoofed nicks. All
    require a nickname of a spoofed nick as the first argument.

   "daemon_cmd_join"
    Takes two arguments, a spoofed nick and a channel name to join.

   "daemon_cmd_part"
    Takes two arguments, a spoofed nick and a channel name to part from.

   "daemon_cmd_mode"
    Takes at least three arguments, a spoofed nick, a channel and a channel
    mode to apply. Additional arguments are parameters for the channel
    modes.

   "daemon_cmd_kick"
    Takes at least three arguments, a spoofed nick, a channel name and the
    nickname of a user to kick from that channel. You may supply a fourth
    argument which will be the kick comment.

   "daemon_cmd_topic"
    Takes three arguments, a spoofed nick, a channel name and the topic to
    set on that channel. If the third argument is an empty string then the
    channel topic will be unset.

   "daemon_cmd_nick"
    Takes two arguments, a spoofed nick and a new nickname to change to.

   "daemon_cmd_gline"
    Takes three arguments, a spoofed nick, a user@host mask to gline and a
    reason for the gline.

   "daemon_cmd_kline"
    Takes a number of arguments depending on where the KLINE is to be
    applied and for how long:

    To set a permanent KLINE:

     $ircd->yield(
         'daemon_cmd_kline',
         $spoofed_nick,
         $nick || $user_host_mask,
         $reason,
     );

    To set a temporary 10 minute KLINE:

     $ircd->yield(
         'daemon_cmd_kline',
         $spoofed_nick,
         10,
         $nick || $user_host_mask,
         $reason,
     );

    To set a temporary 10 minute KLINE on all servers:

     $ircd->yield(
         'daemon_cmd_kline',
         $spoofed_nick,
         10,
         $nick || $user_host_mask,
         'on',
         '*',
         $reason,
     );

   "daemon_cmd_unkline"
    Removes a KLINE as indicated by the user@host mask supplied.

    To remove a KLINE:

     $ircd->yield(
         'daemon_cmd_unkline',
         $spoofed_nick,
         $user_host_mask,
     );

    To remove a KLINE from all servers:

     $ircd->yield(
         'daemon_cmd_unkline',
         $spoofed_nick,
         $user_host_mask,
         'on',
         '*',
     );

   "daemon_cmd_rkline"
    Used to set a regex based KLINE. The regex given must be based on a
    user@host mask.

    To set a permanent RKLINE:

     $ircd->yield(
         'daemon_cmd_rkline',
         $spoofed_nick,
         '^.*$@^(yahoo|google|microsoft)\.com$',
         $reason,
     );

    To set a temporary 10 minute RKLINE:

     $ircd->yield(
         'daemon_cmd_rkline',
         $spoofed_nick,
         10,
         '^.*$@^(yahoo|google|microsoft)\.com$',
         $reason,
     );

    To set a temporary 10 minute RKLINE on all servers:

     $ircd->yield(
         'daemon_cmd_kline',
         $spoofed_nick,
         10,
         '^.*$@^(yahoo|google|microsoft)\.com$',
         'on',
         '*',
         $reason,
     );

   "daemon_cmd_sjoin"
    Takes two arguments a spoofed nickname and an existing channel name.
    This command will then manipulate the channel timestamp to clear all
    modes on that channel, including existing channel operators, reset the
    channel mode to '+nt', the spoofed nick will then join the channel and
    gain channel ops.

   "daemon_cmd_privmsg"
    Takes three arguments, a spoofed nickname, a target (which can be a
    nickname or a channel name) and whatever text you wish to send.

   "daemon_cmd_notice"
    Takes three arguments, a spoofed nickname, a target (which can be a
    nickname or a channel name) and whatever text you wish to send.

   "daemon_cmd_locops"
    Takes two arguments, a spoofed nickname and the text message to send to
    local operators.

   "daemon_cmd_wallops"
    Takes two arguments, a spoofed nickname and the text message to send to
    all operators.

   "daemon_cmd_operwall"
    Takes two arguments, a spoofed nickname and the text message to send to
    all operators.

OUTPUT EVENTS
  "ircd_daemon_error"
    Emitted: when we fail to register with a peer;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the connection id;

        *   "ARG1", the server name;

        *   "ARG2", the reason;

  "ircd_daemon_server"
    Emitted: when a server is introduced onto the network;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the server name;

        *   "ARG1", the name of the server that is introducing them;

        *   "ARG2", the hop count;

        *   "ARG3", the server description;

  "ircd_daemon_squit"
    Emitted: when a server quits the network;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the server name;

  "ircd_daemon_nick"
    Emitted: when a user is introduced onto the network or changes their
    nickname
    Target: all plugins and registered sessions;
    Args (new user):

        *   "ARG0", the nickname;

        *   "ARG1", the hop count;

        *   "ARG2", the time stamp (TS);

        *   "ARG3", the user mode;

        *   "ARG4", the ident;

        *   "ARG5", the hostname;

        *   "ARG6", the server name;

        *   "ARG7", the real name;

    Args (nick change):

        *   "ARG0", the full nick!user@host;

        *   "ARG1", the new nickname;

  "ircd_daemon_umode"
    Emitted: when a user changes their user mode;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host;

        *   "ARG1", the user mode change;

  "ircd_daemon_quit"
    Emitted: when a user quits or the server they are on squits;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host;

        *   "ARG1", the quit message;

  "ircd_daemon_join"
    Emitted: when a user joins a channel
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host;

        *   "ARG1", the channel name;

  "ircd_daemon_part"
    Emitted: when a user parts a channel;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host;

        *   "ARG1", the channel name;

        *   "ARG2", the part message;

  "ircd_daemon_kick"
    Emitted: when a user is kicked from a channel;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host of the kicker;

        *   "ARG1", the channel name;

        *   "ARG2", the nick of the kicked user;

        *   "ARG3", the kick message;

  "ircd_daemon_mode"
    Emitted: when a channel mode is changed;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host or server name;

        *   "ARG1", the channel name;

        *   "ARG2..$#_", the modes and their arguments;

  "ircd_daemon_topic"
    Emitted: when a channel topic is changed
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host of the changer;

        *   "ARG1", the channel name;

        *   "ARG2", the new topic;

  "ircd_daemon_public"
    Emitted: when a channel message is sent (a spoofed nick must be in the
    channel)
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host of the sender;

        *   "ARG1", the channel name;

        *   "ARG2", the message;

  "ircd_daemon_privmsg"
    Emitted: when someone sends a private message to a spoofed nick
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host of the sender;

        *   "ARG1", the spoofed nick targeted;

        *   "ARG2", the message;

  "ircd_daemon_notice"
    Emitted: when someone sends a notice to a spoofed nick or channel
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host of the sender;

        *   "ARG1", the spoofed nick targeted or channel spoofed nick is in;

        *   "ARG2", the message;

  "ircd_daemon_invite"
    Emitted: when someone invites a spoofed nick to a channel;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host of the inviter;

        *   "ARG1", the spoofed nick being invited;

        *   "ARG2", the channel being invited to;

  "ircd_daemon_rehash"
    Emitted: when an oper issues a REHASH command;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host of the oper;

  "ircd_daemon_die"
    Emitted: when an oper issues a DIE command;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host of the oper;

    Note: the component will shutdown, this is a feature;

  "ircd_daemon_gline"
    Emitted: when an oper issues a GLINE command;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host;

        *   "ARG1", the user mask;

        *   "ARG2", the host mask;

        *   "ARG3", the reason;

  "ircd_daemon_kline"
    Emitted: when an oper issues a KLINE command;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host;

        *   "ARG1", the target for the KLINE;

        *   "ARG2", the duration in seconds;

        *   "ARG3", the user mask;

        *   "ARG4", the host mask;

        *   "ARG5", the reason;

  "ircd_daemon_rkline"
    Emitted: when an oper issues an RKLINE command;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host;

        *   "ARG1", the target for the RKLINE;

        *   "ARG2", the duration in seconds;

        *   "ARG3", the user mask;

        *   "ARG4", the host mask;

        *   "ARG5", the reason;

  "ircd_daemon_unkline"
    Emitted: when an oper issues an UNKLINE command;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host;

        *   "ARG1", the target for the UNKLINE;

        *   "ARG2", the user mask;

        *   "ARG3", the host mask;

  "ircd_daemon_locops"
    Emitted: when an oper issues a LOCOPS command;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host;

        *   "ARG1", the locops message;

  "ircd_daemon_operwall"
    Emitted: when an oper issues a WALLOPS or OPERWALL command;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the full nick!user@host;

        *   "ARG1", the wallops or operwall message;

  "ircd_daemon_wallops"
    Emitted: when a server issues a WALLOPS;
    Target: all plugins and registered sessions;
    Args:

        *   "ARG0", the server name;

        *   "ARG1", the wallops message;

BUGS
    A few have turned up in the past and they are sure to again. Please use
    <http://rt.cpan.org/> to report any. Alternatively, email the current
    maintainer.

DEVELOPMENT
    You can find the latest source on github:
    <http://github.com/bingos/poe-component-server-irc>

    The project's developers usually hang out in the "#poe" IRC channel on
    irc.perl.org. Do drop us a line.

MAINTAINER
    Hinrik Örn Sigurðsson <hinrik.sig@gmail.com>

AUTHOR
    Chris 'BinGOs' Williams

LICENSE
    Copyright "(c)" Chris Williams

    This module may be used, modified, and distributed under the same terms
    as Perl itself. Please see the license that came with your Perl
    distribution for details.

KUDOS
    Rocco Caputo for creating POE.

    Buu for pestering me when I started to procrastinate =]

SEE ALSO
    POE <http://poe.perl.org/>

    POE::Component::Server::IRC::Backend

    Net::Netmask

    Hybrid IRCD <http://ircd-hybrid.com/>

    TSOra <http://www.idolnet.org/docs/README.TSora>

    RFC 2810 <http://www.faqs.org/rfcs/rfc2810.html>

    RFC 2811 <http://www.faqs.org/rfcs/rfc2811.html>

    RFC 2812 <http://www.faqs.org/rfcs/rfc2812.html>

    RFC 2813 <http://www.faqs.org/rfcs/rfc2813.html>

