sub credentials
{
    my($self, $netloc, $realm, $uid, $pass) = @_;
    @{ $self->{'basic_authentication'}{lc($netloc)}{$realm} } =
        ($uid, $pass);
}

sub get_basic_credentials
{
    my($self, $realm, $uri, $proxy) = @_;
    return if $proxy;

    my $host_port = lc($uri->host_port);
    if (exists $self->{'basic_authentication'}{$host_port}{$realm}) {
        return @{ $self->{'basic_authentication'}{$host_port}{$realm} };
    }

    return (undef, undef);
}