Get REALLY current page URL

I am trying to get the current page url, whatever be the page, but I cannot find a way WHEN REWRITE is involved by some plug-in, as for instance qTranslate.

In fact, if you use get_permalink() you obtain the URL of the last post in loop if taken outside of loop, so it is ok if you are on a post page, not in other cases.

On the other hand, if you use

<?php
function curPageURL() {
 $pageURL = 'http';
 if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
 $pageURL .= "://";
 if ($_SERVER["SERVER_PORT"] != "80") {
  $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
 } else {
  $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
 }
 return $pageURL;
}
?>

you get the URL *without* the changes applied by plug-in. I need to get exactly what is in the browser URL field. Any help appreciated.