public static void DecodeStructRef(ref Rlp.ValueDecoderContext decoderContext, RlpBehaviors storage, out LogEntryStructRef item)
{
if (decoderContext.IsNextItemNull())
{
decoderContext.ReadByte();
item = new LogEntryStructRef();
return;
}
decoderContext.ReadSequenceLength();
decoderContext.DecodeAddressStructRef(out var address);
var peekPrefixAndContentLength = decoderContext.PeekPrefixAndContentLength();
var sequenceLength = peekPrefixAndContentLength.PrefixLength + peekPrefixAndContentLength.ContentLength;
var topics = decoderContext.Data.Slice(decoderContext.Position, sequenceLength);
decoderContext.SkipItem();
var data = decoderContext.DecodeByteArraySpan();
item = new LogEntryStructRef(address, data, topics);
}
public void DecodeStructRef(ref Rlp.ValueDecoderContext decoderContext, RlpBehaviors rlpBehaviors, out TxReceiptStructRef item)
{
item = new TxReceiptStructRef();
if (decoderContext.IsNextItemNull())
{
decoderContext.ReadByte();
return;
}
bool isStorage = (rlpBehaviors & RlpBehaviors.Storage) != 0;
decoderContext.ReadSequenceLength();
Span <byte> firstItem = decoderContext.DecodeByteArraySpan();
if (firstItem.Length == 1)
{
item.StatusCode = firstItem[0];
}
else
{
item.PostTransactionState = firstItem.Length == 0 ? new ValueKeccak() : new ValueKeccak(firstItem);
}
if (isStorage)
{
decoderContext.DecodeValueKeccak(out item.BlockHash);
}
if (isStorage)
{
item.BlockNumber = (long)decoderContext.DecodeUInt256();
}
if (isStorage)
{
item.Index = decoderContext.DecodeInt();
}
if (isStorage)
{
decoderContext.DecodeAddressStructRef(out item.Sender);
}
if (isStorage)
{
decoderContext.DecodeAddressStructRef(out item.Recipient);
}
if (isStorage)
{
decoderContext.DecodeAddressStructRef(out item.ContractAddress);
}
if (isStorage)
{
item.GasUsed = (long)decoderContext.DecodeUBigInt();
}
item.GasUsedTotal = (long)decoderContext.DecodeUBigInt();
decoderContext.DecodeBloomStructRef(out item.Bloom);
var peekPrefixAndContentLength = decoderContext.PeekPrefixAndContentLength();
var logsBytes = peekPrefixAndContentLength.ContentLength + peekPrefixAndContentLength.PrefixLength;
item.LogsRlp = decoderContext.Data.Slice(decoderContext.Position, logsBytes);
decoderContext.SkipItem();
bool allowExtraData = (rlpBehaviors & RlpBehaviors.AllowExtraData) != 0;
if (!allowExtraData)
{
if (isStorage && _supportTxHash)
{
// since txHash was added later and may not be in rlp, we provide special mark byte that it will be next
if (decoderContext.PeekByte() == MarkTxHashByte)
{
decoderContext.ReadByte();
decoderContext.DecodeValueKeccak(out item.TxHash);
}
}
// since error was added later we can only rely on it in cases where we read receipt only and no data follows, empty errors might not be serialized
if (decoderContext.Position != decoderContext.Length)
{
item.Error = decoderContext.DecodeString();
}
}
}
public Transaction Decode(ref Rlp.ValueDecoderContext decoderContext, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (decoderContext.IsNextItemNull())
{
decoderContext.ReadByte();
return(null);
}
var transactionSequence = decoderContext.PeekNextItem();
int transactionLength = decoderContext.ReadSequenceLength();
int lastCheck = decoderContext.Position + transactionLength;
Transaction transaction = new Transaction();
transaction.Nonce = decoderContext.DecodeUInt256();
transaction.GasPrice = decoderContext.DecodeUInt256();
transaction.GasLimit = decoderContext.DecodeLong();
transaction.To = decoderContext.DecodeAddress();
transaction.Value = decoderContext.DecodeUInt256();
if (transaction.To == null)
{
transaction.Init = decoderContext.DecodeByteArray();
}
else
{
transaction.Data = decoderContext.DecodeByteArray();
}
if (decoderContext.Position < lastCheck)
{
Span <byte> vBytes = decoderContext.DecodeByteArraySpan();
Span <byte> rBytes = decoderContext.DecodeByteArraySpan();
Span <byte> sBytes = decoderContext.DecodeByteArraySpan();
bool allowUnsigned = (rlpBehaviors & RlpBehaviors.AllowUnsigned) == RlpBehaviors.AllowUnsigned;
bool isSignatureOk = true;
string signatureError = null;
if (vBytes == null || rBytes == null || sBytes == null)
{
isSignatureOk = false;
signatureError = "VRS null when decoding Transaction";
}
else if (vBytes.Length == 0 || rBytes.Length == 0 || sBytes.Length == 0)
{
isSignatureOk = false;
signatureError = "VRS is 0 length when decoding Transaction";
}
else if (vBytes[0] == 0 || rBytes[0] == 0 || sBytes[0] == 0)
{
isSignatureOk = false;
signatureError = "VRS starting with 0";
}
else if (rBytes.Length > 32 || sBytes.Length > 32)
{
isSignatureOk = false;
signatureError = "R and S lengths expected to be less or equal 32";
}
else if (rBytes.SequenceEqual(Bytes.Zero32) && sBytes.SequenceEqual(Bytes.Zero32))
{
isSignatureOk = false;
signatureError = "Both 'r' and 's' are zero when decoding a transaction.";
}
if (isSignatureOk)
{
int v = vBytes.ReadEthInt32();
Signature signature = new Signature(rBytes, sBytes, v);
transaction.Signature = signature;
transaction.Hash = Keccak.Compute(transactionSequence);
}
else
{
if (!allowUnsigned)
{
throw new RlpException(signatureError);
}
}
}
if ((rlpBehaviors & RlpBehaviors.AllowExtraData) != RlpBehaviors.AllowExtraData)
{
decoderContext.Check(lastCheck);
}
return(transaction);
}