public static bool TryParseError(JToken token, out HwiException error)
{
error = null;
if (token is JArray)
{
return(false);
}
var errToken = token["error"];
var codeToken = token["code"];
var successToken = token["success"];
string err = "";
if (errToken != null)
{
err = Guard.Correct(errToken.Value <string>());
}
HwiErrorCode?code = null;
if (TryParseErrorCode(codeToken, out HwiErrorCode c))
{
code = c;
}
// HWI bug: it does not give error code.
// https://github.com/bitcoin-core/HWI/issues/216
else if (err == "Not initialized")
{
code = HwiErrorCode.DeviceNotInitialized;
}
if (code.HasValue)
{
error = new HwiException(code.Value, err);
}
else if (err.Length != 0)
{
error = new HwiException(HwiErrorCode.UnknownError, err);
}
else if (successToken != null && successToken.Value <bool>() == false)
{
error = new HwiException(HwiErrorCode.UnknownError, "");
}
return(error != null);
}
public static bool TryParseErrors(string text, out HwiException error)
{
error = null;
if (JsonHelpers.TryParseJToken(text, out JToken token) && TryParseError(token, out HwiException e))
{
error = e;
}
else
{
var subString = "error:";
if (text.Contains(subString, StringComparison.OrdinalIgnoreCase))
{
int startIndex = text.IndexOf(subString, StringComparison.OrdinalIgnoreCase) + subString.Length;
var err = text.Substring(startIndex);
error = new HwiException(HwiErrorCode.UnknownError, err);
}
}
return(error != null);
}
