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#!/usr/bin/env perl
use strict;
use warnings;
use 5.010;
use WWW::Mechanize;
my $mech = WWW::Mechanize->new(
stack_depth => 2,
);
my $uri = shift || read_file('last_uri');
my $image_re = read_file('image_re');
if (not defined $uri or not defined $image_re) {
die("last_uri or image_re not found / specified\n");
}
$image_re = qr{$image_re};
sub find_next_link {
foreach my $re (
qr{ ^ next $ }ix,
qr{ next }ix,
)
{
my $link = $mech->find_link(text_regex => $re);
if ($link) {
return $link;
}
}
save_lasturi();
die("Cannot find next link\n");
}
sub find_image {
my $image = $mech->find_image(url_abs_regex => $image_re);
if ($image) {
my $tmpmech = WWW::Mechanize->new();
$tmpmech->get($image->url_abs);
return $tmpmech;
}
return;
}
sub get_image {
my $tmpmech = find_image() or return;
my $filename = (split(qr{/}o, $tmpmech->uri->as_string))[-1];
if (-e $filename) {
say "img: $filename (skipped)";
}
else {
say "img: $filename";
open(my $fh, '>', $filename) or die("Cannot open $filename: $!\n");
print {$fh} $tmpmech->content();
close($fh) or die("Cannot close $filename: $!\n");
}
return;
}
sub read_file {
my ($filename) = @_;
my ($line, $fh);
if (not open($fh, '<', $filename)) {
warn("Cannot open $filename: $!\n");
return;
}
$line = <$fh>;
close($fh) or warn("Cannot close $filename: $!\n");
chomp $line;
return $line;
}
sub save_lasturi {
# Some webcomics have a non-regular page for the last (as in, latest)
# image. Work around this.
$mech->back();
open(my $fh, '>', 'last_uri') or die("Cannot open last_uri: $!\n");
print {$fh} $mech->uri->as_string;
close($fh) or die("Cannot close last_uri: $!\n");
return;
}
$SIG{INT} = sub {
save_lasturi();
exit(0);
};
while (
$mech->get($uri)
and $mech->success()
and $mech->status() == 200
)
{
say "URI: $uri";
get_image;
$uri = find_next_link->URI->abs->as_string;
if ($uri eq $mech->uri->as_string) {
save_lasturi();
die("Looks like we're in a loop, bailing out\n");
}
print "\n";
sleep(1);
}
__END__
=head1 NAME
=head1 SYNOPSIS
=head1 DESCRIPTION
=head1 OPTIONS
=head1 EXIT STATUS
=head1 CONFIGURATION
=head1 DEPENDENCIES
=head1 BUGS AND LIMITATIONS
=head1 AUTHOR
Copyright (C) 2010 by Daniel Friesel E<lt>derf@chaosdorf.deE<gt>
=head1 LICENSE
0. You just DO WHAT THE FUCK YOU WANT TO.
|
