public static Script GetScriptPubKey(this string bech32Address)
{
if (bech32Address == null)
{
throw new ArgumentNullException(nameof(bech32Address));
}
if (bech32Address.Length == C.PubKeyHashAddressLength && bech32Address.StartsWith(PubKeyAddressPrefix))
{
var hash160 = PubKeyAddressEncoder.Decode(bech32Address, out var witnessVersion);
KeyHelper.CheckBytes(hash160, 20);
if (witnessVersion != 0)
{
InvalidAddress(bech32Address);
}
return(new Script(OpcodeType.OP_0, Op.GetPushOp(hash160)));
}
if (bech32Address.Length == C.ScriptAddressLength && bech32Address.StartsWith(ScriptAddressPrefix))
{
var hash256 = PubKeyAddressEncoder.Decode(bech32Address, out var witnessVersion);
KeyHelper.CheckBytes(hash256, 32);
if (witnessVersion != 0)
{
InvalidAddress(bech32Address);
}
return(new Script(OpcodeType.OP_0, Op.GetPushOp(hash256)));
}
throw InvalidAddress(bech32Address);
}
public void ValidAddress()
{
foreach (string[] address in VALID_ADDRESS)
{
byte witVer;
byte[] witProg;
Bech32Encoder encoder = bech32;
try
{
witProg = bech32.Decode(address[0], out witVer);
encoder = bech32;
}
catch
{
witProg = tbech32.Decode(address[0], out witVer);
encoder = tbech32;
}
byte[] scriptPubkey = Scriptpubkey(witVer, witProg);
string hex = string.Join("", scriptPubkey.Select(x => x.ToString("x2")));
Assert.Equal(hex, address[1]);
string addr = encoder.Encode(witVer, witProg);
Assert.Equal(address[0].ToLowerInvariant(), addr);
}
}
public void CanDetectError()
{
Bech32Encoder bech = Encoders.Bech32("bc");
byte wit;
var ex = Assert.Throws <Bech32FormatException>(() => bech.Decode("bc1zw508e6qejxtdg4y5r3zarvaryvg6kdaj", out wit));
Assert.Single(ex.ErrorIndexes);
Assert.Equal(8, ex.ErrorIndexes[0]);
ex = Assert.Throws <Bech32FormatException>(() => bech.Decode("bc1zw508e6qeextdg4y5r3zarvaryvg6kdaj", out wit));
Assert.Equal(2, ex.ErrorIndexes.Length);
Assert.Equal(8, ex.ErrorIndexes[0]);
Assert.Equal(12, ex.ErrorIndexes[1]);
}
public BitcoinWitPubKeyAddress(string bech32, Network expectedNetwork)
: base(Validate(bech32, expectedNetwork), expectedNetwork)
{
Bech32Encoder encoder = expectedNetwork.GetBech32Encoder(Bech32Type.WITNESS_PUBKEY_ADDRESS, true);
byte witVersion;
byte[] decoded = encoder.Decode(bech32, out witVersion);
this._Hash = new WitKeyId(decoded);
}
public BitcoinWitScriptAddress(string bech32, Network expectedNetwork = null)
: base(Validate(bech32, expectedNetwork), expectedNetwork)
{
Bech32Encoder encoder = expectedNetwork.GetBech32Encoder(Bech32Type.WITNESS_SCRIPT_ADDRESS, true);
byte witVersion;
byte[] decoded = encoder.Decode(bech32, out witVersion);
this._Hash = new WitScriptId(decoded);
}
private static string GetBase58(PubKey blindingKey, BitcoinAddress address)
{
if (address == null)
{
throw new ArgumentNullException(nameof(address));
}
if (blindingKey == null)
{
throw new ArgumentNullException(nameof(blindingKey));
}
if (address is BitcoinBlindedAddress ba)
{
address = ba.UnblindedAddress;
}
if (!(address is IBase58Data))
{
byte witVer;
byte[] witProg;
var blech32Encoder = address.Network.GetBech32Encoder(Bech32Type.BLINDED_ADDRESS, true);
Bech32Encoder bech32Encoder = null;
switch (address)
{
case BitcoinWitPubKeyAddress _:
bech32Encoder = address.Network.GetBech32Encoder(Bech32Type.WITNESS_PUBKEY_ADDRESS, true);
break;
case BitcoinWitScriptAddress _:
bech32Encoder = address.Network.GetBech32Encoder(Bech32Type.WITNESS_SCRIPT_ADDRESS, true);
break;
default:
throw new ArgumentException($"no bech32 encoder for {address.GetType()} found");
}
witProg = bech32Encoder.Decode(address.ToString(), out witVer);
return(blech32Encoder.Encode(witVer, blindingKey.ToBytes().Concat(witProg)));
}
else
{
var network = address.Network;
var keyId = address.ScriptPubKey.GetDestination();
if (keyId == null)
{
throw new ArgumentException("The passed address can't be reduced to a hash");
}
var bytes = address.Network.GetVersionBytes(Base58Type.BLINDED_ADDRESS, true).Concat(
network.GetVersionBytes(((IBase58Data)address).Type, true), blindingKey.ToBytes(),
keyId.ToBytes());
return(NBitcoin.DataEncoders.Encoders.Base58Check.EncodeData(bytes));
}
}
public void ValidAddress()
{
foreach (var address in VALID_ADDRESS)
{
Bech32Encoder encoder = Bech32Encoder.ExtractEncoderFromString(address[0]);
var witProg = encoder.Decode(address[0], out var witVer);
var scriptPubkey = Scriptpubkey(witVer, witProg);
var hex = string.Join("", scriptPubkey.Select(x => x.ToString("x2")));
Assert.Equal(hex, address[1]);
var addr = encoder.Encode(witVer, witProg);
Assert.Equal(address[0].ToLowerInvariant(), addr);
}
}
public static T ToNetwork <T>(this T obj, Network network) where T : IBitcoinString
{
if (network == null)
{
throw new ArgumentNullException("network");
}
if (obj == null)
{
throw new ArgumentNullException("obj");
}
if (obj.Network == network)
{
return(obj);
}
if (obj is IBase58Data)
{
var b58 = (IBase58Data)obj;
if (b58.Type != Base58Type.COLORED_ADDRESS)
{
byte[] version = network.GetVersionBytes(b58.Type, true);
byte[] inner = Encoders.Base58Check.DecodeData(b58.ToString()).Skip(version.Length).ToArray();
string newBase58 = Encoders.Base58Check.EncodeData(version.Concat(inner).ToArray());
return(Network.Parse <T>(newBase58, network));
}
else
{
string colored = BitcoinColoredAddress.GetWrappedBase58(obj.ToString(), obj.Network);
BitcoinAddress address = Network.Parse <BitcoinAddress>(colored, obj.Network).ToNetwork(network);
return((T)(object)address.ToColoredAddress());
}
}
else if (obj is IBech32Data)
{
var b32 = (IBech32Data)obj;
Bech32Encoder encoder = b32.Network.GetBech32Encoder(b32.Type, true);
byte wit;
byte[] data = encoder.Decode(b32.ToString(), out wit);
encoder = network.GetBech32Encoder(b32.Type, true);
string str = encoder.Encode(wit, data);
return((T)(object)Network.Parse <T>(str, network));
}
else
{
throw new NotSupportedException();
}
}
public static bool IsValid(string bech32, Network expectedNetwork, out Exception exception)
{
exception = null;
if (bech32 == null)
{
exception = new ArgumentNullException("bech32");
return(false);
}
Bech32Encoder encoder = expectedNetwork.GetBech32Encoder(Bech32Type.WITNESS_PUBKEY_ADDRESS, false);
if (encoder == null)
{
return(false);
}
try
{
byte witVersion;
byte[] data = encoder.Decode(bech32, out witVersion);
if (data.Length == 20 && witVersion == 0)
{
return(true);
}
}
catch (Bech32FormatException bech32FormatException)
{
exception = bech32FormatException;
return(false);
}
catch (FormatException)
{
exception = new FormatException("Invalid BitcoinWitPubKeyAddress");
return(false);
}
exception = new FormatException("Invalid BitcoinWitScriptAddress");
return(false);
}
