private bool _disposedValue = false; // To detect redundant calls
public LoadWalletViewModel(WalletManagerViewModel owner, LoadWalletType loadWalletType)
: base(loadWalletType == LoadWalletType.Password ? "Test Password" : "Load Wallet")
{
Global = Locator.Current.GetService <Global>();
Owner = owner;
Password = "";
LoadWalletType = loadWalletType;
this.ValidateProperty(x => x.Password, ValidatePassword);
RootList = new SourceList <WalletViewModelBase>();
RootList.Connect()
.AutoRefresh(model => model.WalletState)
.Filter(x => (!IsPasswordRequired || !x.Wallet.KeyManager.IsWatchOnly))
.Sort(SortExpressionComparer <WalletViewModelBase>
.Descending(p => p.Wallet.KeyManager.GetLastAccessTime()),
resort: ResortTrigger.AsObservable())
.ObserveOn(RxApp.MainThreadScheduler)
.Bind(out _wallets)
.DisposeMany()
.Subscribe()
.DisposeWith(Disposables);
Observable.FromEventPattern <Wallet>(Global.WalletManager, nameof(Global.WalletManager.WalletAdded))
.ObserveOn(RxApp.MainThreadScheduler)
.Select(x => x.EventArgs)
.Subscribe(wallet => RootList.Add(new WalletViewModelBase(wallet)))
.DisposeWith(Disposables);
this.WhenAnyValue(x => x.SelectedWallet)
.Where(x => x is null)
.ObserveOn(RxApp.MainThreadScheduler)
.Subscribe(_ => SelectedWallet = Wallets.FirstOrDefault());
Wallets
.ToObservableChangeSet()
.ToCollection()
.Where(items => items.Any() && SelectedWallet is null)
.Select(items => items.First())
.ObserveOn(RxApp.MainThreadScheduler)
.Subscribe(x => SelectedWallet = x);
LoadCommand = ReactiveCommand.Create(() =>
RxApp.MainThreadScheduler
.Schedule(async() => await LoadWalletAsync())
.DisposeWith(Disposables),
this.WhenAnyValue(x => x.SelectedWallet, x => x?.WalletState)
.Select(x => x == WalletState.Uninitialized));
TestPasswordCommand = ReactiveCommand.Create(LoadKeyManager, this.WhenAnyValue(x => x.SelectedWallet).Select(x => x is { }));
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);
LoadCommand.ThrownExceptions.Subscribe(ex => Logger.LogWarning <LoadWalletViewModel>(ex));
TestPasswordCommand.ThrownExceptions.Subscribe(ex => Logger.LogWarning <LoadWalletViewModel>(ex));
OpenFolderCommand.ThrownExceptions.Subscribe(ex => Logger.LogWarning <LoadWalletViewModel>(ex));
SetLoadButtonText();
IsHwWalletSearchTextVisible = LoadWalletType == LoadWalletType.Hardware;
}
public LoadWalletViewModel(WalletManagerViewModel owner, LoadWalletType loadWalletType)
: base(loadWalletType == LoadWalletType.Password ? "Test Password" : loadWalletType == LoadWalletType.Desktop ? "Load Wallet" : "Hardware Wallet")
{
Global = Locator.Current.GetService <Global>();
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(LoadWalletAsync, this.WhenAnyValue(x => x.CanLoadWallet));
TestPasswordCommand = ReactiveCommand.CreateFromTask(LoadKeyManagerAsync, this.WhenAnyValue(x => x.CanTestPassword));
OpenFolderCommand = ReactiveCommand.Create(OpenWalletsFolder);
OpenBrowserCommand = ReactiveCommand.CreateFromTask <string>(IoHelpers.OpenBrowserAsync);
Observable
.Merge(OpenBrowserCommand.ThrownExceptions)
.Merge(LoadCommand.ThrownExceptions)
.Merge(TestPasswordCommand.ThrownExceptions)
.Merge(OpenFolderCommand.ThrownExceptions)
.ObserveOn(RxApp.TaskpoolScheduler)
.Subscribe(ex =>
{
Logger.LogError(ex);
NotificationHelpers.Error(ex.ToUserFriendlyString());
});
SetLoadButtonText();
}
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();
}