Johannes Plunien

NAME

POE::Component::IRC::Plugin::Blowfish - A POE::Component::IRC plugin that provides blowfish encryption.

SYNOPSIS

    #!/usr/bin/perl
    use strict;
    use warnings;
    use POE qw(Component::IRC Component::IRC::Plugin::Blowfish);

    my $nickname  = 'BlowFish' . $$;
    my $ircname   = 'Blowing fish';
    my $ircserver = 'irc.perl.org';
    my $port      = 6667;
    my $channel   = '#POE-Component-IRC-Plugin-Blowfish';
    my $bfkey     = 'secret';

    my $irc = POE::Component::IRC->spawn(
        nick         => $nickname,
        server       => $ircserver,
        port         => $port,
        ircname      => $ircname,
        debug        => 0,
        plugin_debug => 1,
        options      => { trace => 0 },
    ) or die "Oh noooo! $!";

    POE::Session->create(
        package_states => [ 'main' => [qw(_start irc_public irc_001 irc_join)], ],
    );

    $poe_kernel->run();
    exit 0;

    sub _start {

        # Create and load our plugin
        $irc->plugin_add( 'BlowFish' =>
              POE::Component::IRC::Plugin::Blowfish->new( $channel => $bfkey ) );

        $irc->yield( register => 'all' );
        $irc->yield( connect  => {} );
        undef;
    }

    sub irc_001 {
        $irc->yield( join => $channel );
        undef;
    }

    sub irc_join {
        my ( $kernel, $sender, $channel ) = @_[ KERNEL, SENDER, ARG1 ];
        $kernel->post(
            $irc => privmsg => $channel => 'hello this is an encrypted message' );
        undef;
    }

    sub irc_public {
        my ( $kernel, $sender, $who, $where, $msg ) =
          @_[ KERNEL, SENDER, ARG0, ARG1, ARG2 ];
        my $nick = ( split /!/, $who )[0];
        my $chan = $where->[0];

        my @args = split /\s+/, $msg;
        my $cmd = shift @args;

        if ( $cmd eq '!setkey' ) {
            $kernel->yield( set_blowfish_key => (@args)[ 0, 1 ] );
        }

        elsif ( $cmd eq '!delkey' ) {
            $kernel->yield( del_blowfish_key => $args[0] );
        }

        elsif ( $cmd eq '!test' ) {
            $kernel->post(
                $irc => privmsg => $chan => 'this is a test message...' );
        }
    }

DESCRIPTION

POE::Component::IRC::Plugin::Blowfish, is a POE::Component::IRC plugin that provides a mechanism for encrypting and decrypting IRC messages using Crypt::Blowfish_PP. If there is a blowfish key set for a IRC channel this plugin will always encrypt and decrypt IRC messages of that channel. After the plugin has registered it will push itself to the first position in the plugin pipeline. This is necessary that all other plugins will get the decrypted IRC messages.

This plugin is compatible to blowfish irssi plugin: http://fish.sekure.us/irssi/

CONSTRUCTOR

new

Creates a new plugin object. Takes a hash to set blowfish keys for channels:

    '#perl' => 'secret',
    '#poe' => 'foo',
    

It's possible to change this later using "INPUT EVENTS".

INPUT EVENTS

The plugin registers the following state handler within your session:

set_blowfish_key

Parameters: $channel $blowfish_key

Set blowfish key for a channel. If there was a key set already it will be overwritten.

del_blowfish_key

Remove blowfish key from a channel.

Parameters: $channel

AUTHOR

Johannes 'plu' Plunien <plu@cpan.org>

SEE ALSO

POE::Component::IRC

Crypt::Blowfish_PP




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