protected function _getPackageDetails($file)
{
$installer = new Installer_Model_Installer();
$installer->parse($file);
$package = $installer->getPackageDetails();
$path = pathinfo($file);
$filename = $path["filename"] . "." . $path["extension"];
return array("success" => 1, "filename" => base64_encode($filename), "package_details" => array("name" => $this->_("%s Update", $package->getName()), "version" => $package->getVersion(), "description" => $package->getDescription()));
}