/**
* Verify a user token if it exists as part of the multi factor login process
*
* Cyril Ogana <*****@*****.**> - 2016-07-05
*
* @return boolean
* @throws UserCredentialException
*/
protected function checkToken()
{
//instantiate MultiOtp Wrapper
$multiOtpWrapper = new MultiotpWrapper();
//get the username
$currentUserName = $this->getCurrentUsername();
//assert that username is set
if (!\strlen((string) $currentUserName)) {
throw new UserCredentialException('Cannot validate a TOTP token when username is not set!', 2106);
}
//assert that the token exists
$tokenExists = $multiOtpWrapper->CheckTokenExists($currentUserName);
if (!$tokenExists) {
throw new UserCredentialException('The TOTP token for the current user does not exist', 2107);
}
//username mapped to their token name
$multiOtpWrapper->setToken($currentUserName);
//validate the Token
$oneTimeToken = $this->getOneTimeToken();
$tokenCheckResult = $multiOtpWrapper->CheckToken($oneTimeToken);
//The results are reversed
//TODO: Add intepretation of MultiOtp return results here to enable exception handling
if ($tokenCheckResult == 0) {
return true;
} else {
return false;
}
}
/**
* Generate a 6 digit SMS token
* Cyril Ogana <*****@*****.**>
* 2015-07-24
*
* @return string
*
* @param string $userName - The username
* @param string $keyString - String to use as a salt
*
* @access public
* @static
*/
public static function generateToken($userName, $keyString)
{
$userNameCast = (string) $userName;
$keyStringCast = (string) $keyString;
$multiOtpObj = new MultiotpWrapper($keyStringCast);
return $multiOtpObj->GenerateSmsToken($userNameCast);
}