is_valid) {
$isValidAuth=true;
}
}
//if someone clicks on a link to your website from wacebook
else if(preg_match('/www.facebook.com/', $_SERVER["HTTP_REFERER"]))
{
$isValidAuth=true;
}
//if the cookie was already set
else if(isset($_COOKIE["noauth"]))
{
$isValidAuth=true;
}
$target="/";
if(isset($_GET["target"]))
{
$target = $_GET["target"];
}
if($isValidAuth){
setAuth();
header("Location: http://manuelbaumann.com$target"); //forward to the target
exit;
}
//create a cookie that is valid for ages
function setAuth()
{
setcookie("noauth", "IF-ONLY-MACHINES-KNEW-THIS", time()+3600*24*365, "/");
}
?>
manuelbaumann.com/howdy