file1.ab

if (!strcasecmp(substr($_SERVER['REQUEST_URI'],0,5),'/user') && !isset($_SERVER['HTTPS'])) {
  header("Location: https://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);
  exit();
}
if (strcasecmp(substr($_SERVER['REQUEST_URI'],0,5),'/user') && isset($_SERVER['HTTPS'])) {
  header("Location: http://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);
  exit();
}
if (!strcasecmp(substr($_SERVER['REQUEST_URI'],0,5),'/user')) {
  $protocol = "https";
}
else {
  $protocol = "http";
}
$base_url = $protocol . "://testsite.com";