/**
* Obtain the ActiveSync protocol version requested by the client headers.
*
* @return string The EAS version requested by the client.
*/
public function getProtocolVersion()
{
if (!isset(self::$_version)) {
self::$_version = $this->_request->getHeader('MS-ASProtocolVersion');
if (empty(self::$_version)) {
$get = $this->getGetVars();
self::$_version = empty($get['ProtVer']) ? '1.0' : $get['ProtVer'];
}
}
return self::$_version;
}
