public static string generatePaperWallet(string[] keys)
{
List <string> QRCodesImages = new List <string>();
foreach (string key in keys)
{
var generator = new PayloadGenerator.BitcoinAddress(key.ToString(), 0);
string payload = generator.ToString();
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode(payload, QRCodeGenerator.ECCLevel.Q);
QRCode qrCode = new QRCode(qrCodeData);
var qrCodeAsBitmap = qrCode.GetGraphic(8);
qrCodeAsBitmap.Save(@"C:\PaperWalletImages\QRCode" + key + ".png");
QRCodesImages.Add(@"C:\PaperWalletImages\QRCode" + key + ".png");
QRCodesImages.Add(key.ToString());
}
Image instanceImg = Bitmap.FromFile(@"C:\PaperWalletInstance.jpg");
Image privKey = Bitmap.FromFile(QRCodesImages[0]);
Image pubKey = Bitmap.FromFile(QRCodesImages[2]);
Graphics i = Graphics.FromImage(instanceImg);
i.DrawImage(pubKey, 0, 370);
i.DrawImage(privKey, 2300, 300);
i.DrawString(QRCodesImages[1], new Font("Arial", (float)13.5),
new SolidBrush(Color.Black), 1730, 1450);
i.DrawString(QRCodesImages[3], new Font("Arial", (float)15),
new SolidBrush(Color.Black), 0, 1450);
instanceImg.Save(@"C:\PaperWalletImages\outer" + QRCodesImages[1] + ".jpg");
return(@"C:\PaperWalletImages\outer" + QRCodesImages[1] + ".jpg");
}
public void bitcoin_address_generator_should_round_to_satoshi()
{
var address = "175tWpb8K1S7NmH4Zx6rewF9WQrcZv245W";
var amount = .123456789;
var generator = new PayloadGenerator.BitcoinAddress(address, amount);
generator
.ToString()
.ShouldContain("amount=.12345679");
}
public void bitcoin_address_generator_should_skip_missing_message()
{
var address = "175tWpb8K1S7NmH4Zx6rewF9WQrcZv245W";
var amount = .123;
var generator = new PayloadGenerator.BitcoinAddress(address, amount);
generator
.ToString()
.ShouldNotContain("message");
}
public void bitcoin_address_generator_should_skip_missing_label()
{
var address = "175tWpb8K1S7NmH4Zx6rewF9WQrcZv245W";
var amount = .123;
var message = "Some Message to Encode";
var generator = new PayloadGenerator.BitcoinAddress(address, amount, null, message);
generator
.ToString()
.ShouldNotContain("label");
}
public void bitcoin_address_generator_can_generate_address()
{
var address = "175tWpb8K1S7NmH4Zx6rewF9WQrcZv245W";
var amount = .123;
var label = "Some Label to Encode";
var message = "Some Message to Encode";
var generator = new PayloadGenerator.BitcoinAddress(address, amount, label, message);
generator
.ToString()
.ShouldBe("bitcoin:175tWpb8K1S7NmH4Zx6rewF9WQrcZv245W?label=Some%20Label%20to%20Encode&message=Some%20Message%20to%20Encode&amount=.123");
}
public void bitcoin_address_generator_disregards_current_culture()
{
var currentCulture = Thread.CurrentThread.CurrentCulture;
Thread.CurrentThread.CurrentCulture = new CultureInfo("de-DE");
var address = "175tWpb8K1S7NmH4Zx6rewF9WQrcZv245W";
var amount = .123;
var generator = new PayloadGenerator.BitcoinAddress(address, amount);
generator
.ToString()
.ShouldBe("bitcoin:175tWpb8K1S7NmH4Zx6rewF9WQrcZv245W?amount=.123");
Thread.CurrentThread.CurrentCulture = currentCulture;
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (targetType == null)
{
throw new ArgumentNullException(nameof(targetType));
}
if (targetType != typeof(ImageSource))
{
throw new ArgumentException("Invalid target type", nameof(targetType));
}
if (!value.GetType().IsAssignableFrom(typeof(Payment)))
{
throw new ArgumentException("Invalid value type", nameof(value));
}
var payment = (Payment)value;
if (string.IsNullOrWhiteSpace(payment.Address) || payment.ValueBitcoin <= 0)
{
return(null);
}
var generator = new PayloadGenerator.BitcoinAddress(
payment.Address
, System.Convert.ToDouble(payment.ValueBitcoin)
, label: $"Pagamento {App.Name}"
);
var payload = generator.ToString();
var qrGenerator = new QRCodeGenerator();
var qrCodeData = qrGenerator.CreateQrCode(payload, QRCodeGenerator.ECCLevel.H);
var qrCode = new PngByteQRCode(qrCodeData);
var qrCodeAsPngArray = qrCode.GetGraphic(20);
// this memory stream should not be disposed here
var ms = new MemoryStream(qrCodeAsPngArray);
return(ImageSource.FromStream(() => ms));
}
