public Transaction Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (rlpStream.IsNextItemNull())
{
rlpStream.ReadByte();
return(null);
}
var transactionSequence = rlpStream.PeekNextItem();
int transactionLength = rlpStream.ReadSequenceLength();
int lastCheck = rlpStream.Position + transactionLength;
Transaction transaction = new Transaction();
transaction.Nonce = rlpStream.DecodeUInt256();
transaction.GasPrice = rlpStream.DecodeUInt256();
transaction.GasLimit = rlpStream.DecodeLong();
transaction.To = rlpStream.DecodeAddress();
transaction.Value = rlpStream.DecodeUInt256();
if (transaction.To == null)
{
transaction.Init = rlpStream.DecodeByteArray();
}
else
{
transaction.Data = rlpStream.DecodeByteArray();
}
if (rlpStream.Position < lastCheck)
{
ReadOnlySpan <byte> vBytes = rlpStream.DecodeByteArraySpan();
ReadOnlySpan <byte> rBytes = rlpStream.DecodeByteArraySpan();
ReadOnlySpan <byte> sBytes = rlpStream.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)
{
rlpStream.Check(lastCheck);
}
return(transaction);
}
SystemTransaction IRlpDecoder <SystemTransaction> .Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors)
{
throw new NotSupportedException();
}
public BlockHeader Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (rlpStream.IsNextItemNull())
{
rlpStream.ReadByte();
return(null);
}
var headerRlp = rlpStream.PeekNextItem();
int headerSequenceLength = rlpStream.ReadSequenceLength();
int headerCheck = rlpStream.Position + headerSequenceLength;
Keccak parentHash = rlpStream.DecodeKeccak();
Keccak ommersHash = rlpStream.DecodeKeccak();
Address beneficiary = rlpStream.DecodeAddress();
Keccak stateRoot = rlpStream.DecodeKeccak();
Keccak transactionsRoot = rlpStream.DecodeKeccak();
Keccak receiptsRoot = rlpStream.DecodeKeccak();
Bloom bloom = rlpStream.DecodeBloom();
UInt256 difficulty = rlpStream.DecodeUInt256();
UInt256 number = rlpStream.DecodeUInt256();
UInt256 gasLimit = rlpStream.DecodeUInt256();
UInt256 gasUsed = rlpStream.DecodeUInt256();
UInt256 timestamp = rlpStream.DecodeUInt256();
byte[] extraData = rlpStream.DecodeByteArray();
BlockHeader blockHeader = new BlockHeader(
parentHash,
ommersHash,
beneficiary,
difficulty,
(long)number,
(long)gasLimit,
timestamp,
extraData)
{
StateRoot = stateRoot,
TxRoot = transactionsRoot,
ReceiptsRoot = receiptsRoot,
Bloom = bloom,
GasUsed = (long)gasUsed,
Hash = Keccak.Compute(headerRlp)
};
if (rlpStream.PeekPrefixAndContentLength().ContentLength == Keccak.Size)
{
blockHeader.MixHash = rlpStream.DecodeKeccak();
blockHeader.Nonce = (ulong)rlpStream.DecodeUBigInt();
}
else
{
blockHeader.AuRaStep = (long)rlpStream.DecodeUInt256();
blockHeader.AuRaSignature = rlpStream.DecodeByteArray();
}
if ((rlpBehaviors & RlpBehaviors.AllowExtraData) != RlpBehaviors.AllowExtraData)
{
rlpStream.Check(headerCheck);
}
return(blockHeader);
}
public void Encode(RlpStream stream, BlockInfo item, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
throw new NotImplementedException();
}
public TxReceipt Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (rlpStream.IsNextItemNull())
{
rlpStream.ReadByte();
return(null);
}
bool isStorage = (rlpBehaviors & RlpBehaviors.Storage) != 0;
TxReceipt txReceipt = new TxReceipt();
rlpStream.ReadSequenceLength();
byte[] firstItem = rlpStream.DecodeByteArray();
if (firstItem.Length == 1)
{
txReceipt.StatusCode = firstItem[0];
}
else
{
txReceipt.PostTransactionState = firstItem.Length == 0 ? null : new Keccak(firstItem);
}
if (isStorage)
{
txReceipt.BlockHash = rlpStream.DecodeKeccak();
}
if (isStorage)
{
txReceipt.BlockNumber = (long)rlpStream.DecodeUInt256();
}
if (isStorage)
{
txReceipt.Index = rlpStream.DecodeInt();
}
if (isStorage)
{
txReceipt.Sender = rlpStream.DecodeAddress();
}
if (isStorage)
{
txReceipt.Recipient = rlpStream.DecodeAddress();
}
if (isStorage)
{
txReceipt.ContractAddress = rlpStream.DecodeAddress();
}
if (isStorage)
{
txReceipt.GasUsed = (long)rlpStream.DecodeUBigInt();
}
txReceipt.GasUsedTotal = (long)rlpStream.DecodeUBigInt();
txReceipt.Bloom = rlpStream.DecodeBloom();
int lastCheck = rlpStream.ReadSequenceLength() + rlpStream.Position;
List <LogEntry> logEntries = new List <LogEntry>();
while (rlpStream.Position < lastCheck)
{
logEntries.Add(Rlp.Decode <LogEntry>(rlpStream, RlpBehaviors.AllowExtraData));
}
bool allowExtraData = (rlpBehaviors & RlpBehaviors.AllowExtraData) != 0;
if (!allowExtraData)
{
rlpStream.Check(lastCheck);
}
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 (rlpStream.PeekByte() == MarkTxHashByte)
{
rlpStream.ReadByte();
txReceipt.TxHash = rlpStream.DecodeKeccak();
}
}
// 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 (rlpStream.Position != rlpStream.Length)
{
txReceipt.Error = rlpStream.DecodeString();
}
}
txReceipt.Logs = logEntries.ToArray();
return(txReceipt);
}
public void Encode(RlpStream rlpStream, TxReceipt item, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (item == null)
{
rlpStream.EncodeNullObject();
return;
}
var(totalLength, logsLength) = GetContentLength(item, rlpBehaviors);
bool isStorage = (rlpBehaviors & RlpBehaviors.Storage) != 0;
bool isEip658receipts = (rlpBehaviors & RlpBehaviors.Eip658Receipts) == RlpBehaviors.Eip658Receipts;
rlpStream.StartSequence(totalLength);
if (isEip658receipts)
{
rlpStream.Encode(item.StatusCode);
}
else
{
rlpStream.Encode(item.PostTransactionState);
}
if (isStorage)
{
rlpStream.Encode(item.BlockHash);
rlpStream.Encode(item.BlockNumber);
rlpStream.Encode(item.Index);
rlpStream.Encode(item.Sender);
rlpStream.Encode(item.Recipient);
rlpStream.Encode(item.ContractAddress);
rlpStream.Encode(item.GasUsed);
rlpStream.Encode(item.GasUsedTotal);
rlpStream.Encode(item.Bloom);
rlpStream.StartSequence(logsLength);
for (var i = 0; i < item.Logs.Length; i++)
{
rlpStream.Encode(item.Logs[i]);
}
if (_supportTxHash)
{
rlpStream.WriteByte(MarkTxHashByte);
rlpStream.Encode(item.TxHash);
}
rlpStream.Encode(item.Error);
}
else
{
rlpStream.Encode(item.GasUsedTotal);
rlpStream.Encode(item.Bloom);
rlpStream.StartSequence(logsLength);
for (var i = 0; i < item.Logs.Length; i++)
{
rlpStream.Encode(item.Logs[i]);
}
rlpStream.Encode(item.Error);
}
}
public static T Decode <T>(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
var rlpDecoder = GetDecoder <T>();
return(rlpDecoder != null?rlpDecoder.Decode(rlpStream, rlpBehaviors) : throw new RlpException($"{nameof(Rlp)} does not support decoding {typeof(T).Name}"));
}
