private async Task <Result <EnrollDeviceCommandResult, ErrorData> > Process(EnrollDeviceCommand request,
CancellationToken cancellationToken)
{
var whenHappened = this._clock.GetCurrentInstant().ToDateTimeUtc();
var currentUserMaybe = this._currentUserService.CurrentUser;
if (currentUserMaybe.HasNoValue)
{
return(Result.Fail <EnrollDeviceCommandResult, ErrorData>(new ErrorData(ErrorCodes.UserNotFound)));
}
var userMaybe =
await this._userRepository.Find(this._currentUserService.CurrentUser.Value.UserId, cancellationToken);
if (userMaybe.HasNoValue)
{
return(Result.Fail <EnrollDeviceCommandResult, ErrorData>(new ErrorData(ErrorCodes.UserNotFound)));
}
var user = userMaybe.Value;
Fido2.CredentialMakeResult credentialMakeResult;
try
{
// 2. Verify and make the credentials
Task <bool> IsCredentialIdUniqueToUser(IsCredentialIdUniqueToUserParams param)
{
return(Task.FromResult(user.AuthenticatorDevices.Count == 0));
}
credentialMakeResult = await this._fido2.MakeNewCredentialAsync(
request.AuthenticatorAttestationRawResponse,
request.CredentialCreateOptions,
IsCredentialIdUniqueToUser);
}
catch (Fido2VerificationException e)
{
return(Result.Fail <EnrollDeviceCommandResult, ErrorData>(
new ErrorData(ErrorCodes.FidoVerifcationFailed)));
}
user.EnrollAuthenticatorDevice(Guid.NewGuid(),
whenHappened,
credentialMakeResult.Result.PublicKey,
credentialMakeResult.Result.CredentialId,
credentialMakeResult.Result.Aaguid,
Convert.ToInt32(credentialMakeResult.Result.Counter),
request.Name,
credentialMakeResult.Result.CredType
);
return(Result.Ok <EnrollDeviceCommandResult, ErrorData>(new EnrollDeviceCommandResult(credentialMakeResult)));
}
public async Task <Result <EnrollDeviceCommandResult, ErrorData> > Handle(EnrollDeviceCommand request,
CancellationToken cancellationToken)
{
var result = await this.Process(request, cancellationToken);
var dbResult = await this._userRepository.UnitOfWork.SaveEntitiesAsync(cancellationToken);
if (!dbResult)
{
return(Result.Fail <EnrollDeviceCommandResult, ErrorData>(new ErrorData(
ErrorCodes.SavingChanges, "Failed To Save Database")));
}
return(result);
}