Menu callback; redirect during Normalization/Discovery.
function openid_test_redirect($count = 0) {
if ($count == 0) {
$url = variable_get('openid_test_redirect_url', '');
}
else {
$url = url('openid-test/redirect/' . --$count, array(
'absolute' => TRUE,
));
}
$http_response_code = variable_get('openid_test_redirect_http_reponse_code', 301);
header('Location: ' . $url, TRUE, $http_response_code);
exit;
}