/**
* Obtains the session id from the request, either from our
* native 3rd party cookie, or their 1st party cookie sent to us
* in the body of the request.
* @method sessionIdFromRequest
* @static
* @return {string}
*/
static function sessionIdFromRequest()
{
static $sessionId;
if (isset($sessionId)) {
return $sessionId;
}
self::$session_name = self::getFields(self::$publisher, 'session_name');
if (isset($_GET[self::$session_name])) {
return $_GET[self::$session_name];
}
if (isset($_POST[self::$session_name])) {
return $_POST[self::$session_name];
}
if (isset($_COOKIE[self::$session_name])) {
return $_COOKIE[self::$session_name];
}
return null;
}
