Question

My application refreshs automatically to facebook login url but my user already signed in so repeats refresh, nonstop.

Here is my code

$facebook = new Facebook(array(
    'appId'  => 'my app id',
    'secret' => 'my secret key',
    'cookie' => true,
));
$session = $facebook->getSession();
$fbme = null;
$loginUrl = $facebook->getLoginUrl(
    array(
        'canvas'    => 1,
        'fbconnect' => 0,
        'next' => 'my app uri',
        'cancel_url' => 'my app uri',
        'req_perms' => 'email,publish_stream,status_update,offline_access,user_birthday'
    )
);
if (!$session) {
   echo "<script type='text/javascript'>top.location.href = '$loginUrl';</script>";
   exit;
}
else {
  try {
      $uid      =   $facebook->getUser();
      $fbme     =   $facebook->api('/me');
  } catch (FacebookApiException $e) {
      echo "<script type='text/javascript'>top.location.href = '$loginUrl';</script>";
      exit;
  }
}
function d($d){
return TRUE;
}

And my page’s source in refresh is:

"<script type='text/javascript'>top.location.href = 'facebook login url..';</script>

Always refreshs, non stop.

I looked google and i found p3p policy: header('P3P:CP="IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT"');
added but not working 🙁

Sorry for my bad English.

Answer 1

I guess you need to look at this document:

Cookies in iframes/P3P Header
Some browsers will let iframes set cookies
based on the presence of the P3P
header. Notably, IE respects this
header. Ideally you may want to look
up the right value based on the
privacy policy adopted by your
application, but any value will
usually suffice. The sample
application sends this for instance:

P3P: CP="HONK"