private void ValidateSecretKey(byte[] input, ValidationContext <IAccessKey> context)
{
if (!_inputValidator.TryValidateAccessKey(input, out ValidationStatus status, out string?allowed))
{
context.AddFailure("Invalid secret key: " + ValidationMessages.GetMessage(status, allowed));
}
}
public static void ValidateAccessKeyAndThrow(this IInputValidator validator, byte[]?accessKey)
{
if (validator.TryValidateAccessKey(accessKey, out ValidationStatus status, out string?message))
{
return;
}
throw new ArgumentException("Invalid access key: " + ValidationMessages.GetMessage(status, message), nameof(accessKey));
}
private byte[] GetAccessKey()
{
char[]? enteredAccessKey = null;
byte[]? utf8AccessKey = null;
bool validAccessKey = true;
Console.WriteLine();
Console.WriteLine("Enter your access key - Example: wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY");
do
{
if (!validAccessKey)
{
Console.Error.WriteLine("Invalid access key. Try again.");
Array.Clear(enteredAccessKey !, 0, enteredAccessKey !.Length);
Array.Clear(utf8AccessKey !, 0, utf8AccessKey !.Length);
}
enteredAccessKey = ConsoleHelper.ReadSecret(40);
//Now we trim any whitespace characters the user might have entered
int end;
int start;
for (start = 0; start < enteredAccessKey.Length;)
{
if (!char.IsWhiteSpace(enteredAccessKey[start]))
{
break;
}
start++;
}
for (end = enteredAccessKey.Length - 1; end >= start; end--)
{
if (!char.IsWhiteSpace(enteredAccessKey[end]))
{
break;
}
}
if (start != 0 || end != enteredAccessKey.Length - 1)
{
char[] trimmed = new char[end + 1 - start];
int count = 0;
for (int i = start; i < end + 1; i++, count++)
{
trimmed[count] = enteredAccessKey[i];
}
Array.Clear(enteredAccessKey, 0, enteredAccessKey.Length);
enteredAccessKey = trimmed;
}
utf8AccessKey = Encoding.UTF8.GetBytes(enteredAccessKey);
} while (!(validAccessKey = _inputValidator.TryValidateAccessKey(utf8AccessKey, out _, out _)));
//Clear the access key from memory
Array.Clear(enteredAccessKey, 0, enteredAccessKey.Length);
return(utf8AccessKey);
}