public async Task <KeyManager> GenerateWalletAsync(string walletName)
{
var selectedDevice = SelectedDevice;
try
{
if (selectedDevice?.Fingerprint is null)
{
throw new Exception("Cannot be null.");
}
await StopDetectionAsync();
var fingerPrint = (HDFingerprint)selectedDevice.Fingerprint;
using var cts = new CancellationTokenSource(TimeSpan.FromMinutes(3));
var extPubKey = await Client.GetXpubAsync(
selectedDevice.Model,
selectedDevice.Path,
KeyManager.DefaultAccountKeyPath,
cts.Token).ConfigureAwait(false);
var path = WalletManager.WalletDirectories.GetWalletFilePaths(walletName).walletFilePath;
return(KeyManager.CreateNewHardwareWalletWatchOnly(fingerPrint, extPubKey, path));
}
catch (Exception)
{
StartDetection();
throw;
}
}
public static async Task <KeyManager> GenerateWalletAsync(HwiEnumerateEntry device, string walletFilePath, Network network, CancellationToken cancelToken)
{
if (device.Fingerprint is null)
{
throw new Exception("Fingerprint cannot be null.");
}
var client = new HwiClient(network);
var fingerPrint = (HDFingerprint)device.Fingerprint;
using var cts = new CancellationTokenSource(TimeSpan.FromMinutes(3));
using var genCts = CancellationTokenSource.CreateLinkedTokenSource(cts.Token, cancelToken);
var extPubKey = await client.GetXpubAsync(
device.Model,
device.Path,
KeyManager.GetAccountKeyPath(network),
genCts.Token).ConfigureAwait(false);
return(KeyManager.CreateNewHardwareWalletWatchOnly(fingerPrint, extPubKey, network, walletFilePath));
}
private static KeyManager GetKeyManagerByColdcardJson(WalletManager manager, JObject jsonWallet, string walletFullPath)
{
var xpubString = jsonWallet["ExtPubKey"]?.ToString()
?? throw new ArgumentNullException($"Can't get KeyManager, ExtPubKey was null.");
var mfpString = jsonWallet["MasterFingerprint"]?.ToString()
?? throw new ArgumentNullException($"Can't get KeyManager, MasterFingerprint was null.");
// https://github.com/zkSNACKs/WalletWasabi/pull/1663#issuecomment-508073066
// Coldcard 2.1.0 improperly implemented Wasabi skeleton fingerprint at first, so we must reverse byte order.
// The solution was to add a ColdCardFirmwareVersion json field from 2.1.1 and correct the one generated by 2.1.0.
var coldCardVersionString = jsonWallet["ColdCardFirmwareVersion"]?.ToString();
var reverseByteOrder = false;
if (coldCardVersionString is null)
{
reverseByteOrder = true;
}
else
{
Version coldCardVersion = new(coldCardVersionString);
if (coldCardVersion == new Version("2.1.0")) // Should never happen though.
{
reverseByteOrder = true;
}
}
var bytes = ByteHelpers.FromHex(Guard.NotNullOrEmptyOrWhitespace(nameof(mfpString), mfpString, trim: true));
HDFingerprint mfp = reverseByteOrder ? new HDFingerprint(bytes.Reverse().ToArray()) : new HDFingerprint(bytes);
if (manager.WalletExists(mfp))
{
throw new InvalidOperationException(WalletExistsErrorMessage);
}
ExtPubKey extPubKey = NBitcoinHelpers.BetterParseExtPubKey(xpubString);
return(KeyManager.CreateNewHardwareWalletWatchOnly(mfp, extPubKey, manager.Network, walletFullPath));
}
public LoadWalletViewModel(WalletManagerViewModel owner, LoadWalletType loadWalletType)
: base(loadWalletType == LoadWalletType.Password ? "Test Password" : (loadWalletType == LoadWalletType.Desktop ? "Load Wallet" : "Hardware Wallet"))
{
Owner = owner;
Password = "";
LoadWalletType = loadWalletType;
Wallets = new ObservableCollection <LoadWalletEntry>();
WalletLock = new object();
this.WhenAnyValue(x => x.SelectedWallet)
.Subscribe(selectedWallet => TrySetWalletStates());
this.WhenAnyValue(x => x.IsWalletOpened)
.Subscribe(isWalletOpened => TrySetWalletStates());
this.WhenAnyValue(x => x.IsBusy)
.Subscribe(x => TrySetWalletStates());
this.WhenAnyValue(x => x.Password).Subscribe(async x =>
{
try
{
if (x.NotNullAndNotEmpty())
{
char lastChar = x.Last();
if (lastChar == '\r' || lastChar == '\n') // If the last character is cr or lf then act like it'd be a sign to do the job.
{
Password = x.TrimEnd('\r', '\n');
await LoadKeyManagerAsync(requirePassword: true, isHardwareWallet: false);
}
}
}
catch (Exception ex)
{
Logger.LogTrace(ex);
}
});
LoadCommand = ReactiveCommand.CreateFromTask(async() => await LoadWalletAsync(), this.WhenAnyValue(x => x.CanLoadWallet));
TestPasswordCommand = ReactiveCommand.CreateFromTask(async() => await LoadKeyManagerAsync(requirePassword: true, isHardwareWallet: false), this.WhenAnyValue(x => x.CanTestPassword));
OpenFolderCommand = ReactiveCommand.Create(OpenWalletsFolder);
ImportColdcardCommand = ReactiveCommand.CreateFromTask(async() =>
{
try
{
var ofd = new OpenFileDialog
{
AllowMultiple = false,
Title = "Import Coldcard"
};
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
ofd.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
}
var selected = await ofd.ShowAsync(Application.Current.MainWindow, fallBack: true);
if (selected != null && selected.Any())
{
var path = selected.First();
var jsonString = await File.ReadAllTextAsync(path);
var json = JObject.Parse(jsonString);
var xpubString = json["ExtPubKey"].ToString();
var mfpString = json["MasterFingerprint"].ToString();
// https://github.com/zkSNACKs/WalletWasabi/pull/1663#issuecomment-508073066
// Coldcard 2.1.0 improperly implemented Wasabi skeleton fingerpring at first, so we must reverse byte order.
// The solution was to add a ColdCardFirmwareVersion json field from 2.1.1 and correct the one generated by 2.1.0.
var coldCardVersionString = json["ColdCardFirmwareVersion"]?.ToString();
var reverseByteOrder = false;
if (coldCardVersionString is null)
{
reverseByteOrder = true;
}
else
{
Version coldCardVersion = new Version(coldCardVersionString);
if (coldCardVersion == new Version("2.1.0")) // Should never happen though.
{
reverseByteOrder = true;
}
}
HDFingerprint mfp = NBitcoinHelpers.BetterParseHDFingerprint(mfpString, reverseByteOrder: reverseByteOrder);
ExtPubKey extPubKey = NBitcoinHelpers.BetterParseExtPubKey(xpubString);
Logger.LogInfo <LoadWalletViewModel>("Creating new wallet file.");
var walletName = Global.GetNextHardwareWalletName(customPrefix: "Coldcard");
var walletFullPath = Global.GetWalletFullPath(walletName);
KeyManager.CreateNewHardwareWalletWatchOnly(mfp, extPubKey, walletFullPath);
owner.SelectLoadWallet();
}
}
catch (Exception ex)
{
SetWarningMessage(ex.ToTypeMessageString());
Logger.LogError <LoadWalletViewModel>(ex);
}
}, outputScheduler: RxApp.MainThreadScheduler);
OpenBrowserCommand = ReactiveCommand.Create <string>(x =>
{
IoHelpers.OpenBrowser(x);
});
OpenBrowserCommand.ThrownExceptions.Subscribe(Logger.LogWarning <LoadWalletViewModel>);
LoadCommand.ThrownExceptions.Subscribe(Logger.LogWarning <LoadWalletViewModel>);
TestPasswordCommand.ThrownExceptions.Subscribe(Logger.LogWarning <LoadWalletViewModel>);
OpenFolderCommand.ThrownExceptions.Subscribe(Logger.LogWarning <LoadWalletViewModel>);
ImportColdcardCommand.ThrownExceptions.Subscribe(Logger.LogWarning <LoadWalletViewModel>);
SetLoadButtonText();
IsHwWalletSearchTextVisible = LoadWalletType == LoadWalletType.Hardware;
}
public LoadWalletViewModel(WalletManagerViewModel owner, LoadWalletType loadWalletType)
: base(loadWalletType == LoadWalletType.Password ? "Test Password" : (loadWalletType == LoadWalletType.Desktop ? "Load Wallet" : "Hardware Wallet"))
{
Owner = owner;
Password = "";
LoadWalletType = loadWalletType;
Wallets = new ObservableCollection <LoadWalletEntry>();
IsHwWalletSearchTextVisible = false;
this.WhenAnyValue(x => x.SelectedWallet)
.Subscribe(_ => TrySetWalletStates());
this.WhenAnyValue(x => x.IsWalletOpened)
.Subscribe(_ => TrySetWalletStates());
this.WhenAnyValue(x => x.IsBusy)
.Subscribe(_ => TrySetWalletStates());
LoadCommand = ReactiveCommand.CreateFromTask(async() => await LoadWalletAsync(), this.WhenAnyValue(x => x.CanLoadWallet));
TestPasswordCommand = ReactiveCommand.CreateFromTask(async() => await LoadKeyManagerAsync(requirePassword: true, isHardwareWallet: false), this.WhenAnyValue(x => x.CanTestPassword));
OpenFolderCommand = ReactiveCommand.Create(OpenWalletsFolder);
ImportColdcardCommand = ReactiveCommand.CreateFromTask(async() =>
{
var ofd = new OpenFileDialog
{
AllowMultiple = false,
Title = "Import Coldcard"
};
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
ofd.Directory = Path.Combine("/media", Environment.UserName);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
ofd.Directory = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
}
var window = (Application.Current.ApplicationLifetime as IClassicDesktopStyleApplicationLifetime).MainWindow;
var selected = await ofd.ShowAsync(window, fallBack: true);
if (selected != null && selected.Any())
{
var path = selected.First();
var jsonString = await File.ReadAllTextAsync(path);
var json = JObject.Parse(jsonString);
var xpubString = json["ExtPubKey"].ToString();
var mfpString = json["MasterFingerprint"].ToString();
// https://github.com/zkSNACKs/WalletWasabi/pull/1663#issuecomment-508073066
// Coldcard 2.1.0 improperly implemented Wasabi skeleton fingerprint at first, so we must reverse byte order.
// The solution was to add a ColdCardFirmwareVersion json field from 2.1.1 and correct the one generated by 2.1.0.
var coldCardVersionString = json["ColdCardFirmwareVersion"]?.ToString();
var reverseByteOrder = false;
if (coldCardVersionString is null)
{
reverseByteOrder = true;
}
else
{
Version coldCardVersion = new Version(coldCardVersionString);
if (coldCardVersion == new Version("2.1.0")) // Should never happen though.
{
reverseByteOrder = true;
}
}
HDFingerprint mfp = NBitcoinHelpers.BetterParseHDFingerprint(mfpString, reverseByteOrder: reverseByteOrder);
ExtPubKey extPubKey = NBitcoinHelpers.BetterParseExtPubKey(xpubString);
Logger.LogInfo("Creating a new wallet file.");
var walletName = Global.GetNextHardwareWalletName(customPrefix: "Coldcard");
var walletFullPath = Global.GetWalletFullPath(walletName);
KeyManager.CreateNewHardwareWalletWatchOnly(mfp, extPubKey, walletFullPath);
owner.SelectLoadWallet();
}
});
EnumerateHardwareWalletsCommand = ReactiveCommand.CreateFromTask(async() => await EnumerateHardwareWalletsAsync());
OpenBrowserCommand = ReactiveCommand.Create <string>(x => IoHelpers.OpenBrowser(x));
Observable.Merge(OpenBrowserCommand.ThrownExceptions)
.Merge(LoadCommand.ThrownExceptions)
.Merge(TestPasswordCommand.ThrownExceptions)
.Merge(OpenFolderCommand.ThrownExceptions)
.Merge(ImportColdcardCommand.ThrownExceptions)
.Merge(EnumerateHardwareWalletsCommand.ThrownExceptions)
.Subscribe(ex =>
{
NotificationHelpers.Error(ex.ToTypeMessageString());
Logger.LogError(ex);
});
SetLoadButtonText();
}
public ConnectHardwareWalletViewModel(WalletManagerViewModel owner) : base("Hardware Wallet")
{
Global = Locator.Current.GetService <Global>();
Owner = owner;
Wallets = new ObservableCollection <LoadWalletEntry>();
IsHwWalletSearchTextVisible = false;
this.WhenAnyValue(x => x.SelectedWallet)
.Subscribe(_ => TrySetWalletStates());
this.WhenAnyValue(x => x.IsWalletOpened)
.Subscribe(_ => TrySetWalletStates());
this.WhenAnyValue(x => x.IsBusy)
.Subscribe(_ => TrySetWalletStates());
this.WhenAnyValue(x => x.IsBusy)
.Subscribe(_ => TrySetWalletStates());
LoadCommand = ReactiveCommand.CreateFromTask(LoadWalletAsync, this.WhenAnyValue(x => x.CanLoadWallet));
ImportColdcardCommand = ReactiveCommand.CreateFromTask(async() =>
{
var ofd = new OpenFileDialog
{
AllowMultiple = false,
Title = "Import Coldcard"
};
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
ofd.Directory = Path.Combine("/media", Environment.UserName);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
ofd.Directory = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
}
var window = (Application.Current.ApplicationLifetime as IClassicDesktopStyleApplicationLifetime).MainWindow;
var selected = await ofd.ShowAsync(window, fallBack: true);
if (selected is { } && selected.Any())
{
var path = selected.First();
var jsonString = await File.ReadAllTextAsync(path);
var json = JObject.Parse(jsonString);
var xpubString = json["ExtPubKey"].ToString();
var mfpString = json["MasterFingerprint"].ToString();
// https://github.com/zkSNACKs/WalletWasabi/pull/1663#issuecomment-508073066
// Coldcard 2.1.0 improperly implemented Wasabi skeleton fingerprint at first, so we must reverse byte order.
// The solution was to add a ColdCardFirmwareVersion json field from 2.1.1 and correct the one generated by 2.1.0.
var coldCardVersionString = json["ColdCardFirmwareVersion"]?.ToString();
var reverseByteOrder = false;
if (coldCardVersionString is null)
{
reverseByteOrder = true;
}
else
{
Version coldCardVersion = new Version(coldCardVersionString);
if (coldCardVersion == new Version("2.1.0")) // Should never happen though.
{
reverseByteOrder = true;
}
}
var bytes = ByteHelpers.FromHex(Guard.NotNullOrEmptyOrWhitespace(nameof(mfpString), mfpString, trim: true));
HDFingerprint mfp = reverseByteOrder ? new HDFingerprint(bytes.Reverse().ToArray()) : new HDFingerprint(bytes);
ExtPubKey extPubKey = NBitcoinHelpers.BetterParseExtPubKey(xpubString);
Logger.LogInfo("Creating a new wallet file.");
var walletName = Global.WalletManager.WalletDirectories.GetNextWalletName("Coldcard");
var walletFullPath = Global.WalletManager.WalletDirectories.GetWalletFilePaths(walletName).walletFilePath;
KeyManager.CreateNewHardwareWalletWatchOnly(mfp, extPubKey, walletFullPath);
owner.SelectLoadWallet();
}
});
