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 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 void ReadTLV(TLVReader reader, Network network)
{
if (reader.ReadU16() != TLVType)
{
throw new FormatException("Invalid TLV type for offer");
}
reader.ReadByte(); // contract_flags
ChainHash = reader.ReadUInt256();
if (network.GenesisHash != network.GenesisHash)
{
throw new FormatException("Invalid ChainHash");
}
Span <byte> buf = stackalloc byte[64];
using (var ciRecord = reader.StartReadRecord())
{
if (ciRecord.Type != TLVContractInfoType)
{
throw new FormatException("Invalid TLV type for contract info");
}
List <ContractInfo> cis = new List <ContractInfo>();
while (!ciRecord.IsEnd)
{
ciRecord.ReadBytes(buf.Slice(0, 32));
var sats = ciRecord.ReadU64();
cis.Add(new Messages.ContractInfo(new DiscreteOutcome(buf.Slice(0, 32).ToArray()), Money.Satoshis(sats)));
}
ContractInfo = cis.ToArray();
}
using (var oracleRecord = reader.StartReadRecord())
{
if (oracleRecord.Type != TLVOracleInfoType)
{
throw new FormatException("Invalid TLV type for oracle info");
}
oracleRecord.ReadBytes(buf.Slice(0, 64));
OracleInfo = OracleInfo.Create(buf);
}
PubKeys = new PubKeyObject();
reader.ReadBytes(buf.Slice(0, 33));
PubKeys.FundingKey = new PubKey(buf.Slice(0, 33).ToArray());
PubKeys.PayoutAddress = reader.ReadScript().GetDestinationAddress(network);
if (PubKeys.PayoutAddress is null)
{
throw new FormatException("Invalid script");
}
TotalCollateral = Money.Satoshis(reader.ReadU64());
var fiCount = reader.ReadU16();
List <FundingInput> fis = new List <FundingInput>();
while (fiCount > 0)
{
fis.Add(FundingInput.ParseFromTLV(reader, network));
fiCount--;
}
FundingInputs = fis.ToArray();
ChangeAddress = reader.ReadScript().GetDestinationAddress(network);
if (ChangeAddress is null)
{
throw new FormatException("Invalid script");
}
FeeRate = new FeeRate(Money.Satoshis(reader.ReadU64()), 1);
Timeouts = new Timeouts()
{
ContractMaturity = reader.ReadU32(),
ContractTimeout = reader.ReadU32()
};
}
