public void DecodeChecked()
{
Base58.DecodeChecked("4stwEBjT6FYyVV");
Assert.Throws <AddressFormatException>(() => Base58.DecodeChecked("yVv"));
Assert.Throws <AddressFormatException>(() => Base58.DecodeChecked("4stwEBjT6FYyVv"));
// Now check we can correctly decode the case where the high bit of the first byte is not zero, so BigInteger
// sign extends. Fix for a bug that stopped us parsing keys exported using sipas patch.
Base58.DecodeChecked("93VYUMzRG9DdbRP72uQXjaWibbQwygnvaCu9DumcqDjGybD864T");
}
// Visible for testing.
internal static IList <EndPoint> ParseUserList(IEnumerable <string> userNames)
{
var addresses = new List <EndPoint>();
foreach (var user in userNames)
{
// All BitCoin peers start their nicknames with a 'u' character.
if (!user.StartsWith("u"))
{
continue;
}
// After "u" is stripped from the beginning array contains unsigned chars of:
// 4 byte IP address, 2 byte port, 4 byte hash check (ipv4)
byte[] addressBytes;
try
{
// Strip off the "u" before decoding. Note that it's possible for anyone to join these IRC channels and
// so simply beginning with "u" does not imply this is a valid BitCoin encoded address.
//
// decodeChecked removes the checksum from the returned bytes.
addressBytes = Base58.DecodeChecked(user.Substring(1));
}
catch (AddressFormatException)
{
_log.WarnFormat("IRC nick does not parse as base58: {0}", user);
continue;
}
// TODO: Handle IPv6 if one day the official client uses it. It may be that IRC discovery never does.
if (addressBytes.Length != 6)
{
continue;
}
var ipBytes = new[] { addressBytes[0], addressBytes[1], addressBytes[2], addressBytes[3] };
var port = Utils.ReadUint16Be(addressBytes, 4);
var ip = new IPAddress(ipBytes);
var address = new IPEndPoint(ip, port);
addresses.Add(address);
}
return(addresses);
}
public void TestDecode()
{
var testbytes = Encoding.UTF8.GetBytes("Hello World");
var actualbytes = Base58.Decode("JxF12TrwUP45BMd");
Assert.IsTrue(testbytes.SequenceEqual(actualbytes), Encoding.UTF8.GetString(actualbytes, 0, actualbytes.Length));
try
{
Base58.Decode("This isn't valid base58");
Assert.Fail();
}
catch (AddressFormatException)
{
}
Base58.DecodeChecked("4stwEBjT6FYyVV");
// Now check we can correctly decode the case where the high bit of the first byte is not zero, so BigInteger
// sign extends. Fix for a bug that stopped us parsing keys exported using Sipa's patch.
Base58.DecodeChecked("93VYUMzRG9DdbRP72uQXjaWibbQwygnvaCu9DumcqDjGybD864T");
}