public async Task SetPasswordAsync(string password)
{
Mnemonic seedWords = null;
await Task.Run(() =>
{
// Here we are not letting anything that will be autocorrected later.
// Generate wallet with password exactly as entered for compatibility.
PasswordHelper.Guard(password);
string walletFilePath = Path.Combine(_walletManager.WalletDirectories.WalletsDir, $"{_config.Network}.json");
KeyManager.CreateNew(out seedWords, password, walletFilePath);
});
await _storage.SetSeedWords(password, seedWords.ToString());
// this should not be a config
_uiConfig.HasSeed = true;
_uiConfig.ToFile();
}
public async Task LoadWallet()
{
SeedWords = Guard.Correct(SeedWords);
Password = Guard.Correct(Password); // Do not let whitespaces to the beginning and to the end.
string walletFilePath = Path.Combine(_walletManager.WalletDirectories.WalletsDir, $"{_config.Network}.json");
Mnemonic mnemonic = null;
await Task.Run(() =>
{
KeyPath.TryParse(ACCOUNT_KEY_PATH, out KeyPath keyPath);
mnemonic = new Mnemonic(SeedWords);
var km = KeyManager.Recover(mnemonic, Password, filePath: null, keyPath, MIN_GAP_LIMIT);
km.SetNetwork(_config.Network);
km.SetFilePath(walletFilePath);
_walletManager.AddWallet(km);
});
await _storage.SetSeedWords(Password, mnemonic.ToString());
_uiConfig.HasSeed = true;
_uiConfig.ToFile();
}
public async Task InitSeedWords(string password)
{
string wordString = null;
KeyManager keyManager = null;
try
{
// ensure correct pw
PasswordHelper.Guard(password);
string walletFilePath = Path.Combine(_walletManager.WalletDirectories.WalletsDir, $"{_config.Network}.json");
await Task.Run(() =>
{
keyManager = KeyManager.FromFile(walletFilePath);
keyManager.GetMasterExtKey(password ?? "");
});
await Task.Run(async() =>
{
// this next line doesn't really run async :/
wordString = await _storage.GetSeedWords(password);
if (wordString is null)
{
throw new KeyNotFoundException();
}
});
}
catch (SecurityException e)
{
// toss bad password to UI
throw e;
}
// KeyNotFoundException || ArgumentException
catch
{
// try migrate from the legacy system
var seedWords = await _hsm.GetAsync(LegacyWordsLoc);
if (string.IsNullOrEmpty(seedWords))
{
// check if corrupted and show message
throw new InvalidOperationException("Try again if you cancelled the biometric authentication. Otherwise, there are no seed words saved. Please back up using \"Export Wallet File\"");
}
// check if words match the wallet file
KeyManager legacyKM = null;
await Task.Run(() =>
{
KeyPath.TryParse(ACCOUNT_KEY_PATH, out KeyPath keyPath);
var mnemonic = new Mnemonic(seedWords);
legacyKM = KeyManager.Recover(mnemonic, password, filePath: null, keyPath, MIN_GAP_LIMIT);
});
if (legacyKM.EncryptedSecret != keyManager.EncryptedSecret)
{
throw new InvalidOperationException("Corrupt seed words. Please back up using \"Export Wallet File\" instead.");
}
await _storage.SetSeedWords(password, seedWords);
wordString = seedWords;
}
finally
{
SeedWords = wordString?.Split(' ').ToList();
}
}