require "libraries/browserid/Verifier.php";

$assertion = trim($_POST["assertion"]);

try {
$verifier = new Verifier('www.site.com');
$response = $verifier->verify($assertion);

$verified_email = strtolower(trim($response[email]));
$verified_expires = $response[expires]/1000;

if ($response[status] == "okay" && $response[email]
 && $response[audience] == "www.site.com"
 //&& $response[issuer] == "browserid.org"
 && $verified_expires > time()
 ) {

 //good

 }

 } catch (Exception $e) {
 // Something went wrong
 //print $e;
 die("Error".' [<a href="login.html"  style="text-decoration:none;color:rgb(0, 0, 221);font-weight:bold;">try again</a>]');
 }