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|
#!/usr/bin/perl
use strict;
use warnings;
use IO::Async::Loop;
use IO::Async::Stream;
use IO::Async::Listener;
my $LISTEN_PORT = 12345;
my $CONNECT_HOST = "localhost";
my $CONNECT_PORT = 80;
my $loop = IO::Async::Loop->new;
my $listener = ProxyListener->new;
$loop->add( $listener );
$listener->listen(
service => $LISTEN_PORT,
socktype => 'stream',
on_resolve_error => sub { die "Cannot resolve - $_[0]\n"; },
on_listen_error => sub { die "Cannot listen\n"; },
);
$loop->run;
package ProxyListener;
use base qw( IO::Async::Listener );
sub on_stream
{
my $self = shift;
my ( $stream1 ) = @_;
# $socket is just an IO::Socket reference
my $socket1 = $stream1->read_handle;
my $peeraddr = $socket1->peerhost . ":" . $socket1->peerport;
print STDERR "Accepted new connection from $peeraddr\n";
$loop->connect(
host => $CONNECT_HOST,
service => $CONNECT_PORT,
on_stream => sub {
my ( $stream2 ) = @_;
$stream1->configure(
on_read => sub {
my ( $self, $buffref, $eof ) = @_;
# Just copy all the data
$stream2->write( $$buffref ); $$buffref = "";
return 0;
},
on_closed => sub {
$stream2->close_when_empty;
print STDERR "Connection from $peeraddr closed\n";
},
);
$stream2->configure(
on_read => sub {
my ( $self, $buffref, $eof ) = @_;
# Just copy all the data
$stream1->write( $$buffref ); $$buffref = "";
return 0;
},
on_closed => sub {
$stream1->close_when_empty;
print STDERR "Connection to $CONNECT_HOST:$CONNECT_PORT closed\n";
},
);
$loop->add( $stream1 );
$loop->add( $stream2 );
},
on_resolve_error => sub { print STDERR "Cannot resolve - $_[0]\n"; },
on_connect_error => sub { print STDERR "Cannot connect\n"; },
);
}
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