private async Task <ResultWithError <ErrorData> > Process(ValidateAuthenticatorAppCommand request, CancellationToken cancellationToken)
{
var userMaybe = await this._userRepository.Find(this._currentUserService.CurrentUser.Value.UserId, cancellationToken);
if (userMaybe.HasNoValue)
{
return(ResultWithError.Fail(new ErrorData(ErrorCodes.UserNotFound)));
}
var user = userMaybe.Value;
var authApp = user.AuthenticatorApps.SingleOrDefault(x => x.WhenRevoked == null);
if (authApp == null)
{
return(ResultWithError.Fail(new ErrorData(ErrorCodes.AuthenticatorAppAlreadyEnrolled)));
}
var secretBytes = Base32Encoding.ToBytes(authApp.Key);
var topt = new Totp(secretBytes);
var isVerified = topt.VerifyTotp(request.Token, out _);
return(isVerified
? ResultWithError.Ok <ErrorData>()
: ResultWithError.Fail(new ErrorData(ErrorCodes.FailedVerifyingAuthenticatorCode)));
}
public async Task <ResultWithError <ErrorData> > Handle(ValidateAuthenticatorAppCommand request, CancellationToken cancellationToken)
{
var result = await this.Process(request, cancellationToken);
var dbResult = await this._userRepository.UnitOfWork.SaveEntitiesAsync(cancellationToken);
if (!dbResult)
{
return(ResultWithError.Fail(new ErrorData(
ErrorCodes.SavingChanges, "Failed To Save Database")));
}
return(result);
}
