public String PurchaseBitcoins(String CardId, String FromCardPublicAddress, Decimal FiatAmount, String Currency)
{
// Check that the FromCardPublicAddress = what is in the cards table for this cardID
String DBCardPublicAddress = FromCardPublicAddress;
if (DBCardPublicAddress == FromCardPublicAddress)
{
DCExchange.ExchangeClient ExchangeClient = new DCExchange.ExchangeClient();
DCExchange.Margin margin = ExchangeClient.GetMargin(Currency, 0);
Decimal PurchaseBitcoinsAmount = FiatAmount * margin.Buy;
// Purchase Bitcoins from the CC card on file.
Boolean PurchaseSuccess = true;
if (PurchaseSuccess)
{
ATM.AtmClient atm = new ATM.AtmClient();
atm.CreateOrder(FromCardPublicAddress, PurchaseBitcoinsAmount);
return("Approved");
}
return("Declined");
}
else
{
return("Invalid Card - Public Address does not match entry in Database. Card may have been tampered with");
}
}
public string SendBitcoins(String FromCardId, String FromCardPublicAddress, String encryptedPrivateKey, String DestinationCardId, Decimal BitcoinAmount, Decimal FiatAmount, String Currency)
{
// For the FromCardId, Obtain the password.
String Password = "******";
// Check that the FromCardPublicAddress = what is in the cards table for this cardID
String DBCardPublicAddress = FromCardPublicAddress;
Boolean AutoTopUp = true;
// For the DesintationCardId, obtain the DestinationAddress from the Cards Table
String DestinationAddress = "1QJQMFhgyoiLLUZXpr913T2TaEaX7pNFaF";
if (DBCardPublicAddress == DestinationAddress)
{
Card.CardClient card = new Card.CardClient();
ATM.AtmClient atm = new ATM.AtmClient();
Decimal CardBalance = atm.GetBalance(FromCardPublicAddress, 1);
Decimal MinersFee = 0.0001M;
if (CardBalance >= (BitcoinAmount + MinersFee))
{
String result = atm.SendBitcoins(encryptedPrivateKey, Password, DestinationAddress, BitcoinAmount);
return(result);
}
else
{
if (AutoTopUp)
{
// Purchase more coins to cover the difference
DCExchange.ExchangeClient ExchangeClient = new DCExchange.ExchangeClient();
DCExchange.Margin margin = ExchangeClient.GetMargin(Currency, 0);
Decimal PurchaseBitcoinsAmount = FiatAmount * margin.Buy;
// PurchaseFiatAmount = PurchaseBitcoinsAmount;
PurchaseBitcoins(FromCardId, DestinationAddress, FiatAmount, Currency);
// Empty the wallet
String result = atm.SendBitcoins(encryptedPrivateKey, Password, DestinationAddress, CardBalance);
return("");
}
else
{
return("Refer to DD/CC Issuer");
}
}
}
else
{
return("Invalid Card - Public Address does not match entry in Database. Card may have been tampered with");
}
}
private void readCard()
{
nfc = DCPOS.Factory.GetNFC();
if (nfc.InitReader())
{
if (nfc.ConnectReader())
{
String CardId = "";
if (nfc.ReadTagID(ref CardId))
{
String PublicKey = "";
if (nfc.readPublicKey(ref PublicKey))
{
// Get Balance
ATM.AtmClient atm = new ATM.AtmClient();
decimal value = atm.GetBalance(PublicKey, 1);
lblBTCBalance.Text = value.ToString("0.000000 BTC");
}
else
{
lblStatus.Text = "Cannot read Public Key";
}
}
else
{
lblStatus.Text = "Cannot read CardId";
}
}
else
{
lblStatus.Text = "Card not Present on Reader";
}
}
else
{
lblStatus.Text = "Cannot Initalise Reader";
}
}
private void btnActivate_Click(object sender, EventArgs e)
{
try
{
if (validate())
{
String CardId = "";
String body = "";
nfc = DCPOS.Factory.GetNFC();
Card.CardClient card = new Card.CardClient();
ATM.AtmClient atm = new ATM.AtmClient();
if (nfc.InitReader())
{
if (nfc.ConnectReader() && nfc.ReadTagID(ref CardId))
{
if (!card.IsCardOnFile(CardId))
{
ATM.Keys key = atm.CreatePublicEncryptedPrivateKey();
String Password = key.Password.ToString();
String PrivateKey = key.PrivateKey;
String PublicKey = key.PublicKey;
String modifiedpublicuri = String.Format("bitcoin:{0}", PublicKey);
if (nfc.WriteNFCTag(modifiedpublicuri, PrivateKey))
{
body += Environment.NewLine;
body += "Dear " + txtFirstName.Text + "," + Environment.NewLine;
body += Environment.NewLine;
body += Environment.NewLine;
body += "Your Purchase" + Environment.NewLine;
body += "From PC POS" + Environment.NewLine;
body += Environment.NewLine;
body += "Your Public Bitcoin Address is: https://blockchain.info/address/" + PublicKey + Environment.NewLine;
body += Environment.NewLine;
body += "LOSE THE FOLLOWING INFORMATION AND YOUR BITCOINS ARE LOST" + Environment.NewLine;
body += "Your Private Key is: " + PrivateKey + Environment.NewLine;
body += Environment.NewLine;
body += Environment.NewLine;
body += "Thank you" + Environment.NewLine;
body += Environment.NewLine;
body += "Diamond Circle Team" + Environment.NewLine;
body += Environment.NewLine;
body += "Allow for 6 Confirmations before balance appears." + Environment.NewLine;
body += "See Terms and Conditions " + Environment.NewLine;
atm.SendEmailAsync(txtEmail.Text, "Diamond Circle Private Key. CardId:" + CardId, body);
// Write TagID to Database.
Password = Convert.ToBase64String(key.Password);
// card.AddCardWithPinLimit(CardId, PublicKey, Password, txtFirstName.Text, txtLastName.Text, txtAddress.Text, txtCity.Text, txtZip.Text, txtState.Text, cboCountry.SelectedItem, txtTelephone.Text, txtDOB.Text, txtEmail.Text, txtFirstName.Text + " " + txtLastName.Text, txtCCNumber.Text, txtExpiryDateMM.Text, txtExpiryDateYY.Text, txtCCNumber.Text, txtPIN.Text, cboCurrency.SelectedItem, Convert.ToInt32(txtLimit.Text), chkTopup);
}
else
{
// Cannot write card.
}
}
else
{
// Card on file
}
}
else
{
lblStatusMessage.Text = "Hold Card on Reader";
this.Refresh();
}
}
else
{
lblStatusMessage.Text = "Cannot Initialse Reader";
this.Refresh();
}
}
else
{
lblStatusMessage.Text = "Complete all Fields";
}
}
catch (Exception ex)
{
// GeneralExceptions("Encode Tag", System.Diagnostics.TraceEventType.Critical, ex);
}
}
