private bool TryFetchRedeemOrPubKey(WhatIsAddress address)
{
if (address.IsP2SH)
{
address.RedeemScript = TryFetchRedeem(address);
return(address.RedeemScript != null);
}
address.PublicKey = TryFetchPublicKey(address);
return(address.PublicKey != null);
}
public WhatIsPublicKey(PubKey pubkey, Network network)
{
Hex = pubkey.ToHex();
Address = new WhatIsAddress(pubkey.GetAddress(network));
P2SHAddress = new WhatIsAddress(pubkey.ScriptPubKey.GetScriptAddress(network))
{
RedeemScript = new WhatIsScript(pubkey.ScriptPubKey, network)
};
ScriptPubKey = new WhatIsScript(pubkey.ScriptPubKey, network);
IsCompressed = pubkey.IsCompressed;
}
private WhatIsPublicKey TryFetchPublicKey(WhatIsAddress address)
{
var scriptSig = FindScriptSig(address);
if (scriptSig == null)
{
return(null);
}
var result = PayToPubkeyHashTemplate.Instance.ExtractScriptSigParameters(scriptSig);
return(result == null ? null : new WhatIsPublicKey(result.PublicKey, Network));
}
private WhatIsScript TryFetchRedeem(WhatIsAddress address)
{
var scriptSig = FindScriptSig(address);
if (scriptSig == null)
{
return(null);
}
var result = PayToScriptHashTemplate.Instance.ExtractScriptSigParameters(scriptSig);
return(result == null ? null : new WhatIsScript(result.RedeemScript, Network));
}
private async Task <bool> TryFetchRedeemOrPubKey(WhatIsAddress address)
{
if (address.IsP2SH)
{
address.RedeemScript = await TryFetchRedeem(address);
return(address.RedeemScript != null);
}
address.PublicKey = await TryFetchPublicKey(address);
return(address.PublicKey != null);
}
private Script FindScriptSig(WhatIsAddress address)
{
var indexer = Configuration.Indexer.CreateIndexerClient();
var scriptSig = indexer
.GetOrderedBalance(address.ScriptPubKey.Raw)
.Where(b => b.SpentCoins.Count != 0)
.Select(b => new
{
SpentN = b.SpentIndices[0],
Tx = indexer.GetTransaction(b.TransactionId)
})
.Where(o => o.Tx != null)
.Select(o => o.Tx.Transaction.Inputs[o.SpentN].ScriptSig)
.FirstOrDefault();
return(scriptSig);
}
public async Task <object> Find(string data)
{
data = data.Trim();
var b58 = NoException(() => WhatIsBase58.GetFromBitcoinString(data));
if (b58 != null)
{
if (b58 is WhatIsAddress)
{
var address = (WhatIsAddress)b58;
TryFetchRedeemOrPubKey(address);
}
return(b58);
}
if (data.Length == 0x40)
{
try
{
return(await Controller.JsonTransaction(uint256.Parse(data), false));
}
catch
{
}
}
var b = NoException(() => Controller.JsonBlock(BlockFeature.Parse(data), true, false));
if (b != null)
{
return(b);
}
if (data.Length == 0x28) //Hash of pubkey or script
{
TxDestination dest = new KeyId(data);
var address = new WhatIsAddress(dest.GetAddress(Network));
if (TryFetchRedeemOrPubKey(address))
{
return(address);
}
dest = new ScriptId(data);
address = new WhatIsAddress(dest.GetAddress(Network));
if (TryFetchRedeemOrPubKey(address))
{
return(address);
}
}
var script = NoException(() => GetScriptFromBytes(data));
if (script != null)
{
return(new WhatIsScript(script, Network));
}
script = NoException(() => GetScriptFromText(data));
if (script != null)
{
return(new WhatIsScript(script, Network));
}
var sig = NoException(() => new TransactionSignature(Encoders.Hex.DecodeData(data)));
if (sig != null)
{
return(new WhatIsTransactionSignature(sig));
}
var pubkeyBytes = NoException(() => Encoders.Hex.DecodeData(data));
if (pubkeyBytes != null && PubKey.Check(pubkeyBytes, true))
{
var pubKey = NoException(() => new PubKey(data));
if (pubKey != null)
{
return(new WhatIsPublicKey(pubKey, Network));
}
}
if (data.Length == 80 * 2)
{
var blockHeader = NoException(() =>
{
var h = new BlockHeader();
h.ReadWrite(Encoders.Hex.DecodeData(data));
return(h);
});
if (blockHeader != null)
{
return(new WhatIsBlockHeader(blockHeader));
}
}
return(null);
}
/// <summary>
/// Try to interpret the given string in a few ways in order to detect what object it's supposed to represent.
/// </summary>
/// <returns>The object represented by the input string. This may be a Bitcoin address, a script, a signature, a public key, etc.</returns>
public async Task <object> Find(string data)
{
data = data.Trim();
// Is it a Bitcoin address?
var b58 = NoException(() => WhatIsBase58.GetFromBitcoinString(data));
if (b58 != null)
{
if (b58 is WhatIsAddress address)
{
await TryFetchRedeemOrPubKey(address); // Shouldn't the return value here be checked?
}
return(b58);
}
// Is it a transaction ID?
if (data.Length == 0x40)
{
try
{
return(await Controller.JsonTransaction(uint256.Parse(data), false));
}
catch
{
// Well, apparently it's not a transaction ID.
}
}
// Is it a block feature?
var b = NoException(() => Controller.JsonBlock(BlockFeature.Parse(data), true, false));
if (b != null)
{
return(b);
}
// Is it the hash of a public key (modeled as KeyId in NBitcoin), or is it the hash of a script ID?
if (data.Length == 0x28) // Hash of pubkey or script
{
TxDestination dest = new KeyId(data);
var address = new WhatIsAddress(dest.GetAddress(Network));
if (await TryFetchRedeemOrPubKey(address))
{
return(address);
}
dest = new ScriptId(data);
address = new WhatIsAddress(dest.GetAddress(Network));
if (await TryFetchRedeemOrPubKey(address))
{
return(address);
}
}
// Is it a script?
var script = NoException(() => GetScriptFromBytes(data));
if (script != null)
{
return(new WhatIsScript(script, Network));
}
script = NoException(() => GetScriptFromText(data));
if (script != null)
{
return(new WhatIsScript(script, Network));
}
// Is it a transaction signature?
var sig = NoException(() => new TransactionSignature(Encoders.Hex.DecodeData(data)));
if (sig != null)
{
return(new WhatIsTransactionSignature(sig));
}
// Is it a hexstring representing the bytes of a public key?
var pubkeyBytes = NoException(() => Encoders.Hex.DecodeData(data));
if (pubkeyBytes != null && PubKey.Check(pubkeyBytes, true))
{
var pubKey = NoException(() => new PubKey(data));
if (pubKey != null)
{
return(new WhatIsPublicKey(pubKey, Network));
}
}
// Is it a blockheader?
if (data.Length == 80 * 2)
{
var blockHeader = NoException(() =>
{
var h = ConsensusFactory.CreateBlockHeader();
h.ReadWrite(Encoders.Hex.DecodeData(data), ConsensusFactory);
return(h);
});
if (blockHeader != null)
{
return(new WhatIsBlockHeader(blockHeader));
}
}
// No idea what this is.
return(null);
}
