private async Task SendPinImplAsync(HardwareWalletModels?deviceType, string devicePath, HDFingerprint?fingerprint, int pin, CancellationToken cancel)
{
await SendCommandAsync(
options : BuildOptions(deviceType, devicePath, fingerprint),
command : HwiCommands.SendPin,
commandArguments : pin.ToString(),
openConsole : false,
cancel).ConfigureAwait(false);
}
private async Task <ExtPubKey> GetXpubImplAsync(HardwareWalletModels?deviceType, string devicePath, HDFingerprint?fingerprint, KeyPath keyPath, CancellationToken cancel)
{
string keyPathString = keyPath.ToString(true, "h");
var response = await SendCommandAsync(
options : BuildOptions(deviceType, devicePath, fingerprint),
command : HwiCommands.GetXpub,
commandArguments : keyPathString,
openConsole : false,
cancel).ConfigureAwait(false);
var extPubKey = HwiParser.ParseExtPubKey(response);
return(extPubKey);
}
private async Task <BitcoinWitPubKeyAddress> DisplayAddressImplAsync(HardwareWalletModels?deviceType, string devicePath, HDFingerprint?fingerprint, KeyPath keyPath, CancellationToken cancel)
{
var response = await SendCommandAsync(
options : BuildOptions(deviceType, devicePath, fingerprint),
command : HwiCommands.DisplayAddress,
commandArguments : $"--path {keyPath.ToString(true, "h")} --wpkh",
openConsole : false,
cancel).ConfigureAwait(false);
var address = HwiParser.ParseAddress(response, Network) as BitcoinWitPubKeyAddress;
address = address.TransformToNetworkNetwork(Network);
return(address);
}
private static HwiOption[] BuildOptions(HardwareWalletModels?deviceType, string devicePath, HDFingerprint?fingerprint, params HwiOption[] extraOptions)
{
var options = new List <HwiOption>();
var hasDevicePath = devicePath != null;
var hasDeviceType = deviceType.HasValue;
var hasFingerprint = fingerprint.HasValue;
// Fingerprint and devicetype-devicepath pair cannot happen the same time.
var notSupportedExceptionMessage = $"Provide either {nameof(fingerprint)} or {nameof(devicePath)}-{nameof(deviceType)} pair, not both.";
if (hasDeviceType)
{
Guard.NotNull(nameof(devicePath), devicePath);
if (hasFingerprint)
{
throw new NotSupportedException(notSupportedExceptionMessage);
}
}
if (hasFingerprint)
{
if (hasDevicePath || hasDeviceType)
{
throw new NotSupportedException(notSupportedExceptionMessage);
}
}
if (hasDevicePath)
{
options.Add(HwiOption.DevicePath(devicePath));
}
if (hasDeviceType)
{
options.Add(HwiOption.DeviceType(deviceType.Value));
}
if (hasFingerprint)
{
options.Add(HwiOption.Fingerprint(fingerprint.Value));
}
foreach (var opt in extraOptions)
{
options.Add(opt);
}
return(options.ToArray());
}
private async Task <PSBT> SignTxImplAsync(HardwareWalletModels?deviceType, string devicePath, HDFingerprint?fingerprint, PSBT psbt, CancellationToken cancel)
{
var psbtString = psbt.ToBase64();
var response = await SendCommandAsync(
options : BuildOptions(deviceType, devicePath, fingerprint),
command : HwiCommands.SignTx,
commandArguments : psbtString,
openConsole : false,
cancel).ConfigureAwait(false);
PSBT signedPsbt = HwiParser.ParsePsbt(response, Network);
if (!signedPsbt.IsAllFinalized())
{
signedPsbt.Finalize();
}
return(signedPsbt);
}