// We may or may not have this data based on a $_GET or $_COOKIE based session.
//
// If we get a session here, it means we found a correctly signed session using
// the Application Secret only Facebook and the Application know. We dont know
// if it is still valid until we make an API call using the session. A session
// can become invalid if it has already expired (should not be getting the
// session back in this case) or if the user logged out of Facebook.
$me = null;
// Session based API call.
$uid = 0;
if ($session) {
try {
$uid = $facebook->getUser();
$me = $facebook->api('/me');
} catch (FacebookApiException $e) {
error_log($e);
}
}
// login or logout url will be needed depending on current user state.
if ($me) {
$logoutUrl = $facebook->getLogoutUrl();
} else {
$loginUrl = $facebook->getLoginUrl();
}
// This call will always work since we are fetching public data.
$naitik = $facebook->api('/naitik');
***/
/***
* Facebook made installed=1 available again. We are going to take advantage of that.
*/
if(isset($_GET['installed']) && !isset($_GET['request_ids'])){
$kt->track_install($uid);
}
//
//Acquire User Info
//
$capture_user_info_key = $kt->gen_kt_capture_user_info_key(FB_ID, $uid);
if(!isset($_COOKIE[$capture_user_info_key]))
{
$user_info = $facebook->api('/me');
$friends_info = $facebook->api('/me/friends');
$kt->track_user_info($uid, $user_info, $friends_info);
if( !headers_sent() ){
setcookie( $capture_user_info_key, 'done', time()+1209600); // 2 weeks
}
}
}
}
//
// Track other messages
//
if(isset($_GET['kt_type']))
