public Task BindModelAsync(ModelBindingContext bindingContext)
{
if (!typeof(DerivationStrategyBase).GetTypeInfo().IsAssignableFrom(bindingContext.ModelType))
{
return(Task.CompletedTask);
}
ValueProviderResult val = bindingContext.ValueProvider.GetValue(
bindingContext.ModelName);
if (val == null)
{
return(Task.CompletedTask);
}
string key = val.FirstValue as string;
if (key == null)
{
return(Task.CompletedTask);
}
var network = (Network)bindingContext.HttpContext.RequestServices.GetService(typeof(Network));
var data = new DerivationStrategy.DerivationStrategyFactory(network).Parse(key);
if (!bindingContext.ModelType.IsInstanceOfType(data))
{
throw new FormatException("Invalid destination type");
}
bindingContext.Result = ModelBindingResult.Success(data);
return(Task.CompletedTask);
}
public void CanParseDerivationScheme()
{
var network = Network.Main;
var factory = new DerivationStrategy.DerivationStrategyFactory(network);
var tata = new BitcoinExtPubKey("xpub661MyMwAqRbcFiadHioAunPTeic3C17HKPABCBvURz3W2ivn63jzEYYXWpDePLGncjLuRvQKx7jrKweSkoEvgQTvAo5zw4z8HPGC8Y4E4Wr", network);
var toto = new BitcoinExtPubKey("xpub661MyMwAqRbcFqyJE6zy5jMF7bjUtvNHgHJPbENEZtEQKRrukKWJP5xLMKntBaNya7CLMLL6u1KEk8GnrEv8pur5DFSgEMf1hRGjsJrcQKS", network);
var direct = (DirectDerivationStrategy)factory.Parse($"{toto}-[legacy]");
Assert.Equal($"{toto}-[legacy]", direct.ToString());
var generated = Generate(direct);
Assert.Equal(toto.ExtPubKey.Derive(new KeyPath("0/1")).PubKey.Hash.ScriptPubKey, generated.ScriptPubKey);
Assert.Null(generated.Redeem);
var p2wpkh = (DirectDerivationStrategy)factory.Parse($"{toto}");
Assert.Equal($"{toto}", p2wpkh.ToString());
generated = Generate(p2wpkh);
Assert.Null(generated.Redeem);
Assert.Equal(toto.ExtPubKey.Derive(new KeyPath("0/1")).PubKey.WitHash.ScriptPubKey, generated.ScriptPubKey);
var p2shp2wpkh = (P2SHDerivationStrategy)factory.Parse($"{toto}-[p2sh]");
generated = Generate(p2shp2wpkh);
Assert.NotNull(generated.Redeem);
Assert.Equal(toto.ExtPubKey.Derive(new KeyPath("0/1")).PubKey.WitHash.ScriptPubKey.Hash.ScriptPubKey, generated.ScriptPubKey);
Assert.Equal(toto.ExtPubKey.Derive(new KeyPath("0/1")).PubKey.WitHash.ScriptPubKey, generated.Redeem);
//Same thing as above, reversed attribute
p2shp2wpkh = (P2SHDerivationStrategy)factory.Parse($"{toto}-[p2sh]");
Assert.Equal($"{toto}-[p2sh]", p2shp2wpkh.ToString());
Assert.NotNull(generated.Redeem);
Assert.Equal(toto.ExtPubKey.Derive(new KeyPath("0/1")).PubKey.WitHash.ScriptPubKey.Hash.ScriptPubKey, generated.ScriptPubKey);
Assert.Equal(toto.ExtPubKey.Derive(new KeyPath("0/1")).PubKey.WitHash.ScriptPubKey, generated.Redeem);
var multiSig = (P2SHDerivationStrategy)factory.Parse($"2-of-{toto}-{tata}-[legacy]");
generated = Generate(multiSig);
Assert.Equal(new Script("2 025ca59b2007a67f24fdd26acefbe8feb5e8849c207d504b16d4801a8290fe9409 03d15f88de692693e0c25cec27b68da49ae4c29805efbe08154c4acfdf951ccb54 2 OP_CHECKMULTISIG"), generated.Redeem);
multiSig = (P2SHDerivationStrategy)factory.Parse($"2-of-{toto}-{tata}-[legacy]-[keeporder]");
Assert.Equal($"2-of-{toto}-{tata}-[legacy]-[keeporder]", multiSig.ToString());
generated = Generate(multiSig);
Assert.Equal(new Script("2 03d15f88de692693e0c25cec27b68da49ae4c29805efbe08154c4acfdf951ccb54 025ca59b2007a67f24fdd26acefbe8feb5e8849c207d504b16d4801a8290fe9409 2 OP_CHECKMULTISIG"), generated.Redeem);
var multiP2SH = (P2WSHDerivationStrategy)factory.Parse($"2-of-{toto}-{tata}");
Assert.Equal($"2-of-{toto}-{tata}", multiP2SH.ToString());
generated = Generate(multiP2SH);
Assert.IsType <WitScriptId>(generated.ScriptPubKey.GetDestination());
Assert.NotNull(PayToMultiSigTemplate.Instance.ExtractScriptPubKeyParameters(generated.Redeem));
var multiP2WSHP2SH = (P2SHDerivationStrategy)factory.Parse($"2-of-{toto}-{tata}-[p2sh]");
Assert.Equal($"2-of-{toto}-{tata}-[p2sh]", multiP2WSHP2SH.ToString());
generated = Generate(multiP2WSHP2SH);
Assert.IsType <ScriptId>(generated.ScriptPubKey.GetDestination());
Assert.NotNull(PayToMultiSigTemplate.Instance.ExtractScriptPubKeyParameters(generated.Redeem));
}
public Task BindModelAsync(ModelBindingContext bindingContext)
{
if (!typeof(DerivationStrategyBase).GetTypeInfo().IsAssignableFrom(bindingContext.ModelType))
{
return(Task.CompletedTask);
}
ValueProviderResult val = bindingContext.ValueProvider.GetValue(
bindingContext.ModelName);
if (val == null)
{
return(Task.CompletedTask);
}
string key = val.FirstValue as string;
if (key == null)
{
return(Task.CompletedTask);
}
var networkProvider = (NBXplorer.NBXplorerNetworkProvider)bindingContext.HttpContext.RequestServices.GetService(typeof(NBXplorer.NBXplorerNetworkProvider));
var cryptoCode = bindingContext.ValueProvider.GetValue("cryptoCode").FirstValue;
var network = networkProvider.GetFromCryptoCode((cryptoCode ?? "BTC"));
try
{
var data = new DerivationStrategy.DerivationStrategyFactory(network.NBitcoinNetwork).Parse(key);
if (!bindingContext.ModelType.IsInstanceOfType(data))
{
throw new FormatException("Invalid destination type");
}
bindingContext.Result = ModelBindingResult.Success(data);
}
catch {
//throw new FormatException("Wrong scheme!");
var data = Parse(key, network.NBitcoinNetwork);
if (!bindingContext.ModelType.IsInstanceOfType(data))
{
throw new FormatException("Invalid destination type");
}
bindingContext.Result = ModelBindingResult.Success(data);
}
return(Task.CompletedTask);
}
public static bool TryParse(ReadOnlySpan <char> strSpan, out DerivationSchemeTrackedSource derivationSchemeTrackedSource, Network network)
{
if (strSpan == null)
{
throw new ArgumentNullException(nameof(strSpan));
}
if (network == null)
{
throw new ArgumentNullException(nameof(network));
}
derivationSchemeTrackedSource = null;
if (!strSpan.StartsWith("DERIVATIONSCHEME:".AsSpan(), StringComparison.Ordinal))
{
return(false);
}
try
{
var factory = new DerivationStrategy.DerivationStrategyFactory(network);
var derivationScheme = factory.Parse(strSpan.Slice("DERIVATIONSCHEME:".Length).ToString());
derivationSchemeTrackedSource = new DerivationSchemeTrackedSource(derivationScheme);
return(true);
}
catch { return(false); }
}
public DerivationStrategyJsonConverter(DerivationStrategy.DerivationStrategyFactory factory)
{
Factory = factory;
}
