public function identifyUser($db, $auth_header)
{
// identify the user
$oauth_pieces = explode(' ', $auth_header);
if (count($oauth_pieces) != 2) {
throw new Exception('Invalid Authorization Header', '400');
}
if (strtolower($oauth_pieces[0]) != "oauth") {
throw new Exception('Unknown Authorization Header Received', '400');
}
$oauth_model = new OAuthModel($db);
$user_id = $oauth_model->verifyAccessToken($oauth_pieces[1]);
$this->user_id = $user_id;
return true;
}
