internal static ContractConfirmation Parse(BinaryReader bin)
{
ContractConfirmation cc = new ContractConfirmation();
cc.Key = new Primitives.PublicKey()
{
Value = bin.ReadBytes(Primitives.PublicKeySize)
};
cc.CallSequence = bin.ReadUInt64();
int cnt = (int)(uint)bin.ReadByte();
if (cnt > 0)
{
cc.Signatures = new List <KeyValuePair <int, Primitives.Signature> >();
for (int i = 0; i < cnt; i++)
{
int idx = (int)(uint)bin.ReadByte();
var sig = new Primitives.Signature()
{
Value = bin.ReadBytes(Primitives.SignatureSize)
};
cc.Signatures.Add(new KeyValuePair <int, Primitives.Signature>(idx, sig));
}
}
return(cc);
}
internal static ResponseBlock Parse(byte[] bytes)
{
try
{
if (bytes == null)
{
return(new ResponseBlock()
{
Success = false, Message = "Input bytes array is null"
});
}
using (BinaryReader bin = new BinaryReader(new MemoryStream(bytes)))
{
int hashing_len = 0;
Block block = new Block();
block.Version = bin.ReadByte();
int len = bin.ReadByte();
if (len != Primitives.HashSize)
{
return(new ResponseBlock()
{
Success = false, Message = "The hash size is not equal"
});
}
block.PreviousHash = new Primitives.Hash {
Value = bin.ReadBytes(len)
};
block.Sequence = bin.ReadUInt64();
// user fields
int cnt = (int)bin.ReadByte();
if (cnt > 0)
{
block.UserFields = new List <UserField>();
for (int i = 0; i < cnt; i++)
{
block.UserFields.Add(UserField.Parse(bin));
}
}
// round cost
block.RoundCost = new Money();
block.RoundCost.Integral = bin.ReadInt32();
block.RoundCost.Fraction = bin.ReadUInt64();
// transactions
cnt = (int)bin.ReadUInt32();
if (cnt > 0)
{
block.Transactions = new List <Transaction>();
for (int i = 0; i < cnt; i++)
{
block.Transactions.Add(Transaction.Parse(bin));
}
// round cost clarify
if (block.RoundCost.IsZero)
{
foreach (var t in block.Transactions)
{
block.RoundCost += t.ActualFee;
}
}
}
// new wallets
cnt = (int)bin.ReadUInt32();
if (cnt > 0)
{
block.IntroducedWallets = new List <WalletIntroduce>();
for (int i = 0; i < cnt; i++)
{
WalletIntroduce w = new WalletIntroduce();
Int64 v = bin.ReadInt64();
if (v < 0)
{
v = -v;
// address is target
if (v < block.Transactions.Count)
{
w.Key = block.Transactions[(int)v].Target;
}
}
else
{
if (v < block.Transactions.Count)
{
w.Key = block.Transactions[(int)v].Source;
}
}
w.Id = bin.ReadUInt32();
block.IntroducedWallets.Add(w);
}
}
// consensus info
// current RT
cnt = (int)(uint)bin.ReadByte();
UInt64 bits_trusted = bin.ReadUInt64(); // count of "1" = sig_blk_cnt
if (cnt > 0)
{
block.TrustedNodes = new List <ConsensusMember>();
for (int i = 0; i < cnt; i++)
{
block.TrustedNodes.Add(new ConsensusMember()
{
Id = new Primitives.PublicKey {
Value = bin.ReadBytes(Primitives.PublicKeySize)
}
});
}
}
// previous consensus
cnt = (int)(uint)bin.ReadByte();
if (cnt > 0)
{
block.TrustedApproval = new List <KeyValuePair <int, Primitives.Signature> >();
UInt64 bits_appr = bin.ReadUInt64();
int sig_prev_rt_cnt = CountBits(bits_appr);
int isig = 0;
for (int i = 0; i < cnt; i++)
{
if ((bits_appr & (0x1UL << i)) == 0)
{
continue;
}
if (isig >= sig_prev_rt_cnt)
{
break;
}
block.TrustedApproval.Add(new KeyValuePair <int, Primitives.Signature>(
isig,
new Primitives.Signature {
Value = bin.ReadBytes(Primitives.SignatureSize)
}
));
isig++;
}
if (isig != sig_prev_rt_cnt)
{
//TODO: malformed trusted approval section
}
}
hashing_len = (int)(uint)bin.ReadUInt64();
// continue read block.TrustedNodes (signatures)
cnt = block.TrustedNodes.Count;
for (int i = 0; i < cnt; i++)
{
if ((bits_trusted & (0x1UL << i)) == 0)
{
continue;
}
block.TrustedNodes[i].Signature = new Primitives.Signature()
{
Value = bin.ReadBytes(Primitives.SignatureSize)
};
}
// contract signatures
cnt = (int)(uint)bin.ReadByte();
if (cnt > 0)
{
block.ContractsApproval = new List <ContractConfirmation>();
for (int i = 0; i < cnt; i++)
{
block.ContractsApproval.Add(ContractConfirmation.Parse(bin));
}
}
if (bin.BaseStream.Position == bin.BaseStream.Length)
{
if (hashing_len > 0)
{
block.Hash = new Primitives.Hash()
{
Value = Blake2s.ComputeHash(Primitives.HashSize, bytes.AsSpan(0, hashing_len))
};
}
return(new ResponseBlock()
{
Success = true, Block = block
});
}
return(new ResponseBlock()
{
Success = false, Message = "The stream postion is not equal to the stream length"
});
}
}
catch (Exception ex)
{
return(new ResponseBlock()
{
Success = false, Message = ex.Message
});
}
}