/**
* @param Mage_Cms_Model_Page $page
*
* @return bool
*/
public function isCustomerAllowed(Mage_Cms_Model_Page $page)
{
$customer = Mage::helper('customer')->getCustomer();
$pageCustomerIds = array_flip(explode(',', $page->getAllowCustomerIds()));
$isValidGroup = (pow(2, $customer->getGroupId()) & $page->getAllowCustomerGroups()) > 0;
$isValidCustomerId = isset($pageCustomerIds[$customer->getEntityId()]);
return $isValidGroup || $isValidCustomerId;
}
