1# $Id: URI.pm,v 1.1.1.1 2004/05/20 17:59:56 jpetri Exp $
2
3package XML::SAX::PurePerl::Reader::URI;
4
5use strict;
6
7use XML::SAX::PurePerl::Reader;
8use File::Temp qw(tempfile);
9use Symbol;
10
11## NOTE: This is *not* a subclass of Reader. It just returns Stream or String
12## Reader objects depending on what it's capabilities are.
13
14sub new {
15    my $class = shift;
16    my $uri = shift;
17    # request the URI
18    if (-e $uri && -f _) {
19        my $fh = gensym;
20        open($fh, $uri) || die "Cannot open file $uri : $!";
21        return XML::SAX::PurePerl::Reader::Stream->new($fh);
22    }
23    elsif ($uri =~ /^file:(.*)$/ && -e $1 && -f _) {
24        my $file = $1;
25        my $fh = gensym;
26        open($fh, $file) || die "Cannot open file $file : $!";
27        return XML::SAX::PurePerl::Reader::Stream->new($fh);
28    }
29    else {
30        # request URI, return String reader
31        require LWP::UserAgent;
32        my $ua = LWP::UserAgent->new;
33        $ua->agent("Perl/XML/SAX/PurePerl/1.0 " . $ua->agent);
34
35        my $req = HTTP::Request->new(GET => $uri);
36
37        my $fh = tempfile();
38
39        my $callback = sub {
40            my ($data, $response, $protocol) = @_;
41            print $fh $data;
42        };
43
44        my $res = $ua->request($req, $callback, 4096);
45
46        if ($res->is_success) {
47            seek($fh, 0, 0);
48            return XML::SAX::PurePerl::Reader::Stream->new($fh);
49        }
50        else {
51            die "LWP Request Failed";
52        }
53    }
54}
55
56
571;
58