This document describes using Plack and AnyEvent to create an IRC to HTTP stream server. It connects to an IRC server using AnyEvent::IRC::Client, registers a callback for IRC privmsgs, and runs a Plack server on port 8080 that writes received privmsgs to responses. This allows viewing an IRC channel through a web browser without requiring IRC port access. Key points are using AnyEvent asynchronously, registering an IRC privmsg callback, and running the Plack server to handle HTTP requests.

1. IRC HTTP Stream
yusukebe
YAPC::Asia 2009

2. Want to see talks of the IRC!
• But…
• IRC port is not available here ><
• Port forwarding ?
• (既存の) Web proxy ?
• Polling ?

3. No.

4. We are
miyagawanized!

5. それPla
( SOREPLA )

6. use Plack with AnyEvent!
Plack
Async
AnyEvent::
IRC IRC::Client
HTTP

7. use Plack::Loader;
use AnyEvent;
use AnyEvent::IRC::Client;
my $impl = Plack::Loader->load( 'AnyEvent', port =>
8080 );
my $cv = AnyEvent->condvar;
my $pc = AnyEvent::IRC::Client->new;

8. # Set and Start IRC Client!
$cv->begin;
$pc->reg_cb(
irc_privmsg => sub {
my ( $name, $msg ) = @_;
$writer->write( $msg->{params}->[1] );
}
);
$pc->send_srv( "JOIN", 'yapc.asia-ja' );
$pc->connect( "irc.freenode.net", 6667,
{ nick => 'nick', user => 'nick', real => 'nick' } );
$cv->end;

9. # Run plack server
$impl->run(
sub {
my ( $env, $start_response ) = @_;
$writer = $start_response->( 200, [ 'Content-Type'
=> 'text/plain' ] );
$writer->write("IRC HTTP Stream!n");
return [];
}
);
$impl->run_loop;

10. DEMO

11. Test server is available(?)
$ curl http://yapc-stream.pulpsite.net

12. What does ‘それPla’ mean?

13. If you wan to…
• Make original Web Application Framework.
• Make Async Web Server.
• etc.

14. Ask miyagawa-san
“Do you know a good module?”

15. Maybe, miyagawa-san says…
Plack Author

16. “Yes. Plack can.”

17. 「それPlackで
できるよ」

18. それPla
( SOREPLA )

19. それPlack
でできるよ
Plack
HACKS

20. Special thanks to Tatsuhiko Miyagawa –san.