#!/usr/bin/perl -w

use strict;

use LWP::UserAgent;
use HTML::Parser;
use URI;

my $starturl = shift || die "No url supplied\n"; #"http://www.strathaven.s-lanark.sch.uk/pages/ring.htm"; #
my $baseuri = URI->new($starturl);
my $cururi;
my $url;
my @urls ;

push @urls,$starturl;

my $agent = new LWP::UserAgent;
my $parser = HTML::Parser->new(api_version => 3,
                                  start_h => [\&start ,"tagname, attr"]);

$agent->agent("Jonzilla/666");

while( $url = shift @urls)
  {
    my $request = new HTTP::Request 'GET' => $url;

    my $result = $agent->request($request);

    if ($result->is_success)
      {
	print "URL: $url\n";
	#print $result->as_string;
	$parser->parse($result->content);
      }
    else
      {
        print "Error: " . $result->status_line . " URL=$url, $baseuri\n";
      }
  }

sub start
  {
    my($tag,$attr) = @_;
    if ($tag eq 'frame' )
      {
	my $thisuri = URI->new($attr->{src});
        push @urls, $thisuri->abs($cururi);
      }
  }