#!/fellow/monks.pl

I've written a podcatcher in perl before, but this time I thought of doing it a bit tighter, using a few more modules, and simplifying it.

#!/usr/bin/perl

use strict;
use XML::Simple;
use LWP::Simple;

my $config    = "$0.conf";    # The config file that contains all the 
+RSS feeds
my $state    = "$0.state";    # The file to keep track what we've down
+loaded
my $target_dir    = substr($0,0,rindex($0,"/")+rindex($0,"\\"));    # 
+The directory where to dump the podcasts

open(IN,"$config")    || die "Cannot read the config file : $config";
while(<IN>)
{
    chomp;
        my $data = eval { XMLin(get($_)) };
        print "\n$data->{channel}->{title} ($_)\n";
        if (ref($data->{channel}->{item}) ne 'ARRAY') {
                &enclosure($data->{channel}->{item}->{enclosure}->{url
+},$data->{channel}->{item}->{enclosure}->{length});
        } else {
                foreach my $item ( @{ $data->{channel}->{item} }) {
                        &enclosure($item->{enclosure}->{url},$item->{e
+nclosure}->{length});
                }
        }
}
close IN;
exit(0);

sub enclosure
{
    my ($url,$len) = $_;
    open(STATE,"$state");
    while(<STATE>) {
        chomp;
        if($url eq $_) {
            close STATE;
            return;
        }
    }
    close STATE;

    my $rawfile = get($url);

    if(length($rawfile) == $len) {
        open(OUT,">$target_dir/" . substr($url,rindex($url,"/")+1));
        print OUT get($url);
        close OUT;

        open(OUT,">>$state");
        print OUT "$url\n";
        close OUT;
    }
}
[download]