public void ReadTLV(TLVReader reader, Network network)
{
if (reader.ReadU16() != TLVType)
{
throw new FormatException("Invalid TLV type for sign");
}
ContractId = reader.ReadUInt256();
CetSigs = CetSigs.ParseFromTLV(reader);
using (var r = reader.StartReadRecord())
{
if (r.Type != FundingSignaturesTLVType)
{
throw new FormatException("Invalid TLV type for funding signatures");
}
FundingSigs = new List <WitScript>();
var witnesses = r.ReadU16();
for (int i = 0; i < witnesses; i++)
{
var elementsCount = reader.ReadU16();
var witnessBytes = new byte[elementsCount][];
for (int y = 0; y < elementsCount; y++)
{
var elementSize = reader.ReadU16();
witnessBytes[y] = new byte[elementSize];
r.ReadBytes(witnessBytes[y]);
}
FundingSigs.Add(new WitScript(witnessBytes));
}
}
}
public static CetSigs ParseFromTLV(TLVReader reader)
{
CetSigs cet = new CetSigs();
using (var r = reader.StartReadRecord())
{
if (r.Type != AdaptorSigsTLVType)
{
throw new FormatException("Invalid TLV type, expected adaptor sigs");
}
List <AdaptorSignature> sigs = new List <AdaptorSignature>();
while (!r.IsEnd)
{
sigs.Add(AdaptorSignature.ParseFromTLV(reader));
}
cet.OutcomeSigs = sigs.ToArray();
}
Span <byte> buf = stackalloc byte[64];
reader.ReadBytes(buf);
if (!ECDSASignature.TryParseFromCompact(buf, out var sig))
{
throw new FormatException("Invalid DER signature");
}
cet.RefundSig = sig;
return(cet);
}
public void WriteTLV(TLVWriter writer)
{
if (ContractId is null)
{
throw new InvalidOperationException("ContractId is not set");
}
if (CetSigs is null)
{
throw new InvalidOperationException("CetSigs is not set");
}
if (FundingSigs is null)
{
throw new InvalidOperationException("FundingSigs is not set");
}
writer.WriteU16(TLVType);
writer.WriteUInt256(ContractId);
CetSigs.WriteTLV(writer);
using (var w = writer.StartWriteRecord(FundingSignaturesTLVType))
{
w.WriteU16(FundingSigs.Count);
foreach (var s in FundingSigs)
{
w.WriteU16(s.PushCount);
for (int i = 0; i < s.PushCount; i++)
{
var p = s.GetUnsafePush(i);
w.WriteU16(p.Length);
w.WriteBytes(p);
}
}
}
}
public void WriteTLV(TLVWriter writer)
{
if (TemporaryContractId is null)
{
throw new InvalidOperationException($"{nameof(TemporaryContractId)} is not set");
}
if (TotalCollateral is null)
{
throw new InvalidOperationException($"{nameof(TotalCollateral)} is not set");
}
if (PubKeys?.FundingKey is null)
{
throw new InvalidOperationException($"{nameof(PubKeys.FundingKey)} is not set");
}
if (PubKeys?.PayoutAddress is null)
{
throw new InvalidOperationException($"{nameof(PubKeys.PayoutAddress)} is not set");
}
if (FundingInputs is null)
{
throw new InvalidOperationException($"{nameof(FundingInputs)} is not set");
}
if (ChangeAddress is null)
{
throw new InvalidOperationException($"{nameof(ChangeAddress)} is not set");
}
if (CetSigs is null)
{
throw new InvalidOperationException($"{nameof(CetSigs)} is not set");
}
writer.WriteU16(TLVType);
writer.WriteUInt256(TemporaryContractId);
writer.WriteU64((ulong)TotalCollateral.Satoshi);
Span <byte> buf = stackalloc byte[64];
PubKeys.FundingKey.Compress().ToBytes(buf, out _);
writer.WriteBytes(buf.Slice(0, 33));
writer.WriteScript(PubKeys.PayoutAddress.ScriptPubKey);
writer.WriteU16((ushort)FundingInputs.Length);
foreach (var input in FundingInputs)
{
input.WriteTLV(writer);
}
writer.WriteScript(ChangeAddress.ScriptPubKey);
CetSigs.WriteTLV(writer);
}
public void ReadTLV(TLVReader reader, Network network)
{
if (reader.ReadU16() != TLVType)
{
throw new FormatException("Invalid TLV type for accept");
}
TemporaryContractId = reader.ReadUInt256();
TotalCollateral = Money.Satoshis(reader.ReadU64());
PubKeys = new PubKeyObject();
var pk = new byte[33];
reader.ReadBytes(pk);
PubKeys.FundingKey = new PubKey(pk, true);
PubKeys.PayoutAddress = reader.ReadScript().GetDestinationAddress(network);
var inputLen = reader.ReadU16();
FundingInputs = new FundingInput[inputLen];
for (int i = 0; i < inputLen; i++)
{
FundingInputs[i] = FundingInput.ParseFromTLV(reader, network);
}
ChangeAddress = reader.ReadScript().GetDestinationAddress(network);
CetSigs = CetSigs.ParseFromTLV(reader);
}
