private bool SaveToDatabase(User newUser)
{
WalletBank wBank = new WalletBank();
var wallet = wBank.CreateWallet(newUser.Password);
newUser.PublicKey = Convert.ToBase64String(wallet.PublicKey);
newUser.PublicKeyHashed = Convert.ToBase64String(wallet.PublicKeyHash);
newUser.Address = wallet.Address;
//save to Database
UserContext context = new UserContext();
context.Users.Add(newUser);
try
{
context.SaveChanges();
return(true);
}
catch (Exception e)
{
Console.WriteLine(e);
return(false);
}
}
private void LoginButtonClicked(object sender, RoutedEventArgs e)
{
string address = AddressComboBox.Text;;
string hashPw = Sha.GenerateSha256String(PasswordBox1.Password);
//check Private key and public Key
var walletBank = new WalletBank();
var wallet = walletBank.FindWallet(address, hashPw);
if (wallet == null)
{
Errormessage.Text = "First import your wallet";
return;
}
if (!wallet.IsValid())
{
Errormessage.Text = "Wallet isn't valid";
return;
}
//check inside DB
var context = new UserContext();
var user = context.Users.FirstOrDefault(n => n.Address == address && n.Password == hashPw);
if (user != null)
{
NavigationService?.Navigate(new WalletPage(user));
}
else
{
Errormessage.Text = "Passwords doesn't match or connection is lost";
}
}
//ver1
public static Transaction NewTransaction(string from, string to, int amount, UTXOSet set)
{
var inputs = new List <TxInput>();
var outputs = new List <TxOutput>();
var walletBank = new WalletBank();
var wallet = walletBank.FindWallet(from);
var pubKeyHash = wallet.PublicKeyHash;
var spendableOutputs = set.FindSpendableOutputs(pubKeyHash, amount);
var account = spendableOutputs.Item2;
var validOutputs = spendableOutputs.Item1;
if (account < amount)
{
Console.WriteLine("Insufficient funds");
return(null);
}
else
{
foreach (var output in validOutputs.Keys)
{
var txId = (output);
if (validOutputs.ContainsKey(txId))
{
foreach (var @out in validOutputs[txId])
{
var input = new TxInput()
{
Id = HexadecimalEncoding.FromHexStringToByte(txId), Out = @out, Signature = null, PubKey = wallet.PublicKey
};
inputs.Add(input);
}
}
}
outputs.Add(TxOutput.NewTxOutput(amount, to));
if (account > amount)
{
outputs.Add(TxOutput.NewTxOutput(account - amount, from));
}
}
var tx = new Transaction()
{
Id = null,
Inputs = inputs,
Outputs = outputs,
TimeStamp = DateTime.Now
};
tx.Id = tx.CalculateHash();
set.Chain.SignTransaction(tx, wallet.PrivateKey);
return(tx);
}
public Login(User newUser)
{
InitializeComponent();
_walletBank = new WalletBank();
AddressComboBox.ItemsSource = _walletBank.GetAddresses();
if (newUser != null)
{
AddressComboBox.Text = newUser.Address;
}
}
public WalletPage(User user)
{
InitializeComponent();
InitializeLogger();
TryCreateShortcut(); // create shortcut, so i will be able to show toasts
//INITIALIZE CHAIN, ETC
_loggedUser = user;
var bank = new WalletBank();
_loggedUserWallet = bank.FindWallet(user.Address);
_friChain = new BlockChain(LayerBlockchainNetwork.GetIpAddress());
//REGISTER CLOSING EVENET
Application.Current.MainWindow.Closing += new CancelEventHandler(AppClosing);
//SET GUI PROPERTIES
InitializeProfile();
UpdateBalance();
UpdateRawChain();
UpdatePeerList();
}
static void Main(string[] args)
{
var startTime = DateTime.Now;
//var wBank = new WalletBank();
//for (var i = 0; i < 100; i++) wBank.CreateWallet();
//foreach (var wallet in wBank)
//{
// var isOk = wallet.VerifyAddress(wallet.Address);
// Console.WriteLine(isOk);
//}
//var blockChain = new BlockChain();
//blockChain.Print();
//var txList = new List<Transaction>();
//for(var i = 0; i<10000; i++) {
//Transaction tx1 = new Transaction()
//{
// Id = null,
// Inputs = new List<TxInput>()
// {
// new TxInput() {
// Id = new byte[] {},
// PubKey = new byte[]{0x01},
// Out = i
// }
// } ,
// Outputs = new List<TxOutput>() { new TxOutput()
// {
// Value = i,
// } }
//};
//tx1.CalculateHash();
// txList.Add(tx1);
//}
//var merkleTree = new MerkleTree(txList);
//merkleTree.LevelOrder();
var list = new List <Transaction>();
var bank = new WalletBank();
var _loggedUserWallet = bank.FindWallet("112H2TcYAvxWGPSWXz4bzGvm5RXEdFDCms");
var _friChain = new BlockChain("x");
var utxoSet = new UTXOSet(_friChain);
for (int i = 0; i < 20; i++)
{
var tx = Transaction.NewTransaction("112H2TcYAvxWGPSWXz4bzGvm5RXEdFDCms", "1fp9JwtnMMnYVLaABMEQuKGtpXUnJm7Cz", 2, utxoSet);
if (tx == null)
{
return;
}
list.Add(tx);
}
var block = _friChain.MineBlock(list);
utxoSet.Update(block);
_friChain.GetBalance("112H2TcYAvxWGPSWXz4bzGvm5RXEdFDCms");
var endTime = DateTime.Now;
Console.WriteLine($"Duration: {endTime - startTime}");
Console.Read();
}
