package LWP::Simple;

use strict;
use vars qw($ua %loop_check $FULL_LWP @EXPORT @EXPORT_OK $VERSION);

require Exporter;

@EXPORT = qw(get head getprint getstore mirror);
@EXPORT_OK = qw($ua);

# I really hate this.  I was a bad idea to do it in the first place.
# Wonder how to get rid of it???  (It even makes LWP::Simple 7% slower
# for trivial tests)
use HTTP::Status;
push(@EXPORT, @HTTP::Status::EXPORT);

$VERSION = "5.810";
$FULL_LWP++ if grep {lc($_) eq "http_proxy"} keys %ENV;


sub import
{
    my $pkg = shift;
    my $callpkg = caller;
    if (grep $_ eq '$ua', @_) {
	$FULL_LWP++;
	_init_ua();
    }
    Exporter::export($pkg, $callpkg, @_);
}


sub _init_ua
{
    require LWP;
    require LWP::UserAgent;
    require HTTP::Status;
    require HTTP::Date;
    $ua = new LWP::UserAgent;  # we create a global UserAgent object
    my $ver = $LWP::VERSION = $LWP::VERSION;  # avoid warning
    $ua->agent("LWP::Simple/$LWP::VERSION");
    $ua->env_proxy;
}


sub get ($)
{
    %loop_check = ();
    goto \&_get;
}


sub get_old ($)
{
    my($url) = @_;
    _init_ua() unless $ua;

    my $request = HTTP::Request->new(GET => $url);
    my $response = $ua->request($request);

    return $response->content if $response->is_success;
    return undef;
}


sub head ($)
{
    my($url) = @_;
    _init_ua() unless $ua;

    my $request = HTTP::Request->new(HEAD => $url);
    my $response = $ua->request($request);

    if ($response->is_success) {
	return $response unless wantarray;
	return (scalar $response->header('Content-Type'),
		scalar $response->header('Content-Length'),
		HTTP::Date::str2time($response->header('Last-Modified')),
		HTTP::Date::str2time($response->header('Expires')),
		scalar $response->header('Server'),
	       );
    }
    return;
}


sub getprint ($)
{
    my($url) = @_;
    _init_ua() unless $ua;

    my $request = HTTP::Request->new(GET => $url);
    local($\) = ""; # ensure standard $OUTPUT_RECORD_SEPARATOR
    my $callback = sub { print $_[0] };
    if ($^O eq "MacOS") {
	$callback = sub { $_[0] =~ s/\015?\012/\n/g; print $_[0] }
    }
    my $response = $ua->request($request, $callback);
    unless ($response->is_success) {
	print STDERR $response->status_line, " <URL:$url>\n";