public Block Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (rlpStream.IsNextItemNull())
{
rlpStream.ReadByte();
return(null);
}
int sequenceLength = rlpStream.ReadSequenceLength();
int blockCheck = rlpStream.Position + sequenceLength;
BlockHeader header = Rlp.Decode <BlockHeader>(rlpStream);
int transactionsSequenceLength = rlpStream.ReadSequenceLength();
int transactionsCheck = rlpStream.Position + transactionsSequenceLength;
List <Transaction> transactions = new List <Transaction>();
while (rlpStream.Position < transactionsCheck)
{
transactions.Add(Rlp.Decode <Transaction>(rlpStream));
}
rlpStream.Check(transactionsCheck);
int ommersSequenceLength = rlpStream.ReadSequenceLength();
int ommersCheck = rlpStream.Position + ommersSequenceLength;
List <BlockHeader> ommerHeaders = new List <BlockHeader>();
while (rlpStream.Position < ommersCheck)
{
ommerHeaders.Add(Rlp.Decode <BlockHeader>(rlpStream, rlpBehaviors));
}
rlpStream.Check(ommersCheck);
if (!rlpBehaviors.HasFlag(RlpBehaviors.AllowExtraData))
{
rlpStream.Check(blockCheck);
}
return(new Block(header, transactions, ommerHeaders));
}
public Block Decode(Rlp.DecoderContext context, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
int sequenceLength = context.ReadSequenceLength();
if (sequenceLength == 0)
{
return(null);
}
int blockCheck = context.Position + sequenceLength;
BlockHeader header = Rlp.Decode <BlockHeader>(context);
int transactionsSequenceLength = context.ReadSequenceLength();
int transactionsCheck = context.Position + transactionsSequenceLength;
List <Transaction> transactions = new List <Transaction>();
while (context.Position < transactionsCheck)
{
transactions.Add(Rlp.Decode <Transaction>(context));
}
context.Check(transactionsCheck);
int ommersSequenceLength = context.ReadSequenceLength();
int ommersCheck = context.Position + ommersSequenceLength;
List <BlockHeader> ommerHeaders = new List <BlockHeader>();
while (context.Position < ommersCheck)
{
ommerHeaders.Add(Rlp.Decode <BlockHeader>(context, rlpBehaviors));
}
context.Check(ommersCheck);
if (!rlpBehaviors.HasFlag(RlpBehaviors.AllowExtraData))
{
context.Check(blockCheck);
}
return(new Block(header, transactions, ommerHeaders));
}
private (int Total, int Logs) GetContentLength(TxReceipt item, RlpBehaviors rlpBehaviors)
{
var contentLength = 0;
var logsLength = 0;
if (item == null)
{
return(contentLength, 0);
}
bool isStorage = (rlpBehaviors & RlpBehaviors.Storage) != 0;
if (isStorage)
{
contentLength += Rlp.LengthOf(item.BlockHash);
contentLength += Rlp.LengthOf(item.BlockNumber);
contentLength += Rlp.LengthOf(item.Index);
contentLength += Rlp.LengthOf(item.Sender);
contentLength += Rlp.LengthOf(item.Recipient);
contentLength += Rlp.LengthOf(item.ContractAddress);
contentLength += Rlp.LengthOf(item.GasUsed);
contentLength += Rlp.LengthOf(item.Error);
}
contentLength += Rlp.LengthOf(item.GasUsedTotal);
contentLength += Rlp.LengthOf(item.Bloom);
logsLength = GetLogsLength(item);
contentLength += Rlp.GetSequenceRlpLength(logsLength);
bool isEip658receipts = (rlpBehaviors & RlpBehaviors.Eip658Receipts) == RlpBehaviors.Eip658Receipts;
if (isEip658receipts)
{
contentLength += Rlp.LengthOf(item.StatusCode);
}
else
{
contentLength += Rlp.LengthOf(item.PostTransactionState);
}
return(contentLength, logsLength);
}
public static Rlp Encode(
Transaction transaction,
bool forSigning,
bool isEip155Enabled = false,
int chainId = 0)
{
Rlp[] sequence = new Rlp[forSigning && !(isEip155Enabled && chainId != 0) ? 6 : 9];
sequence[0] = Encode(transaction.Nonce);
sequence[1] = Encode(transaction.GasPrice);
sequence[2] = Encode(transaction.GasLimit);
sequence[3] = Encode(transaction.To);
sequence[4] = Encode(transaction.Value);
sequence[5] = Encode(transaction.To == null ? transaction.Init : transaction.Data);
if (forSigning)
{
if (isEip155Enabled && chainId != 0)
{
sequence[6] = Encode(chainId);
sequence[7] = OfEmptyByteArray;
sequence[8] = OfEmptyByteArray;
}
}
else
{
// TODO: below obviously fails when Signature is null
sequence[6] = transaction.Signature == null ? OfEmptyByteArray : Encode(transaction.Signature.V);
sequence[7] =
Encode(transaction.Signature == null
? null
: transaction.Signature.R
.WithoutLeadingZeros()); // TODO: consider storing R and S differently
sequence[8] =
Encode(transaction.Signature == null
? null
: transaction.Signature.S
.WithoutLeadingZeros()); // TODO: consider storing R and S differently
}
return(Encode(sequence));
}
public static Rlp Encode <T>(T[] items, RlpBehaviors behaviors = RlpBehaviors.None)
{
if (items == null)
{
return(OfEmptySequence);
}
if (Decoders.ContainsKey(typeof(T)))
{
IRlpDecoder <T> decoder = (IRlpDecoder <T>)Decoders[typeof(T)];
Rlp[] rlpSequence = new Rlp[items.Length];
for (int i = 0; i < items.Length; i++)
{
rlpSequence[i] = items[i] == null ? OfEmptySequence : decoder.Encode(items[i], behaviors);
}
return(Encode(rlpSequence));
}
throw new RlpException($"{nameof(Rlp)} does not support encoding {typeof(T).Name}");
}
public Rlp Encode(ChainLevelInfo item, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (item == null)
{
return(Rlp.OfEmptySequence);
}
Rlp[] elements = new Rlp[2];
elements[0] = Rlp.Encode(item.HasBlockOnMainChain);
elements[1] = Rlp.Encode(item.BlockInfos);
if (item.BlockInfos.Any(bi => bi == null))
{
throw new InvalidOperationException($"{nameof(BlockInfo)} is null when encoding {nameof(ChainLevelInfo)}");
}
Rlp rlp = Rlp.Encode(elements);
return(rlp);
}
public Rlp Encode(ChainLevelInfo item, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (item == null)
{
return(Rlp.OfEmptySequence);
}
Rlp[] elements = new Rlp[2];
elements[0] = Rlp.Encode(item.HasBlockOnMainChain);
elements[1] = Rlp.Encode(item.BlockInfos);
if (item.BlockInfos.Any(bi => bi == null))
{
throw new Exception();
}
Rlp rlp = Rlp.Encode(elements);
return(rlp);
}
public ChainLevelInfo Decode(Rlp.DecoderContext context, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
int lastCheck = context.ReadSequenceLength() + context.Position;
bool hasMainChainBlock = context.DecodeBool();
List <BlockInfo> blockInfos = new List <BlockInfo>();
context.ReadSequenceLength();
while (context.Position < lastCheck)
{
blockInfos.Add(Rlp.Decode <BlockInfo>(context, RlpBehaviors.AllowExtraData));
}
if (!rlpBehaviors.HasFlag(RlpBehaviors.AllowExtraData))
{
context.Check(lastCheck);
}
ChainLevelInfo info = new ChainLevelInfo(hasMainChainBlock, blockInfos.ToArray());
return(info);
}
public void Encode(MemoryStream stream, Block item, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (item == null)
{
stream.Write(Rlp.OfEmptySequence.Bytes);
return;
}
(int contentLength, int txsLength, int ommersLength) = GetContentLength(item, rlpBehaviors);
Rlp.StartSequence(stream, contentLength);
_headerDecoder.Encode(stream, item.Header);
Rlp.StartSequence(stream, txsLength);
for (int i = 0; i < item.Transactions.Length; i++)
{
_txDecoder.Encode(stream, item.Transactions[i]);
}
Rlp.StartSequence(stream, ommersLength);
for (int i = 0; i < item.Ommers.Length; i++)
{
_headerDecoder.Encode(stream, item.Ommers[i]);
}
}
public Rlp Encode(TxReceipt item, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (rlpBehaviors.HasFlag(RlpBehaviors.Storage))
{
return(Rlp.Encode(
rlpBehaviors.HasFlag(RlpBehaviors.Eip658Receipts) ? Rlp.Encode(item.StatusCode) : Rlp.Encode(item.PostTransactionState),
Rlp.Encode(item.BlockHash),
Rlp.Encode(item.BlockNumber),
Rlp.Encode(item.Index),
Rlp.Encode(item.Sender),
Rlp.Encode(item.Recipient),
Rlp.Encode(item.ContractAddress),
Rlp.Encode(item.GasUsed),
Rlp.Encode(item.GasUsedTotal),
Rlp.Encode(item.Bloom),
Rlp.Encode(item.Logs),
Rlp.Encode(item.Error)));
}
return(Rlp.Encode(
rlpBehaviors.HasFlag(RlpBehaviors.Eip658Receipts) ? Rlp.Encode(item.StatusCode) : Rlp.Encode(item.PostTransactionState),
Rlp.Encode(item.GasUsedTotal),
Rlp.Encode(item.Bloom),
Rlp.Encode(item.Logs)));
}
public TxReceipt Decode(Rlp.DecoderContext context, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
bool isStorage = (rlpBehaviors & RlpBehaviors.Storage) != 0;
TxReceipt txReceipt = new TxReceipt();
context.ReadSequenceLength();
byte[] firstItem = context.DecodeByteArray();
if (firstItem.Length == 1)
{
txReceipt.StatusCode = firstItem[0];
}
else
{
txReceipt.PostTransactionState = firstItem.Length == 0 ? null : new Keccak(firstItem);
}
if (isStorage)
{
txReceipt.BlockHash = context.DecodeKeccak();
}
if (isStorage)
{
txReceipt.BlockNumber = (long)context.DecodeUInt256();
}
if (isStorage)
{
txReceipt.Index = context.DecodeInt();
}
if (isStorage)
{
txReceipt.Sender = context.DecodeAddress();
}
if (isStorage)
{
txReceipt.Recipient = context.DecodeAddress();
}
if (isStorage)
{
txReceipt.ContractAddress = context.DecodeAddress();
}
if (isStorage)
{
txReceipt.GasUsed = (long)context.DecodeUBigInt();
}
txReceipt.GasUsedTotal = (long)context.DecodeUBigInt();
txReceipt.Bloom = context.DecodeBloom();
int lastCheck = context.ReadSequenceLength() + context.Position;
List <LogEntry> logEntries = new List <LogEntry>();
while (context.Position < lastCheck)
{
logEntries.Add(Rlp.Decode <LogEntry>(context, RlpBehaviors.AllowExtraData));
}
bool allowExtraData = (rlpBehaviors & RlpBehaviors.AllowExtraData) != 0;
if (!allowExtraData)
{
context.Check(lastCheck);
}
// since error was added later we can only rely on it in cases where we read receipt only and no data follows
if (isStorage && !allowExtraData && context.Position != context.Length)
{
txReceipt.Error = context.DecodeString();
}
txReceipt.Logs = logEntries.ToArray();
return(txReceipt);
}
public int GetLength(Transaction item, RlpBehaviors rlpBehaviors)
{
return(Rlp.GetSequenceRlpLength(GetContentLength(item, false)));
}
public int GetLength(TxReceipt item, RlpBehaviors rlpBehaviors)
{
return(Rlp.LengthOfSequence(GetContentLength(item, rlpBehaviors).Total));
}
public int GetLength(BlockHeader item, RlpBehaviors rlpBehaviors)
{
return(Rlp.LengthOfSequence(GetContentLength(item, rlpBehaviors)));
}
public int GetHashCode(Rlp obj)
{
return(obj.Bytes.GetXxHashCode());
}
public Rlp Encode(Transaction item, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
return(Rlp.Encode(item, false));
}
public static T Decode <T>(Rlp oldRlp, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
return(Decode <T>(oldRlp.Bytes.AsRlpContext(), rlpBehaviors));
}
public bool Equals(Rlp other)
{
return(null != other && Extensions.Bytes.AreEqual(Bytes, other.Bytes));
}
public Rlp Encode(TransactionReceipt item, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
return(Rlp.Encode(
rlpBehaviors.HasFlag(RlpBehaviors.Eip658Receipts) ? Rlp.Encode(item.StatusCode) : Rlp.Encode(item.PostTransactionState),
Rlp.Encode(item.GasUsed),
Rlp.Encode(item.Bloom),
Rlp.Encode(item.Logs)));
}
public static Rlp[] ExtractRlpList(Rlp rlp)
{
return(ExtractRlpList(new DecoderContext(rlp.Bytes)));
}
