public Block Decode(ref Rlp.ValueDecoderContext decoderContext, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (decoderContext.IsNextItemNull())
{
decoderContext.ReadByte();
return(null);
}
int sequenceLength = decoderContext.ReadSequenceLength();
int blockCheck = decoderContext.Position + sequenceLength;
BlockHeader header = Rlp.Decode <BlockHeader>(ref decoderContext);
int transactionsSequenceLength = decoderContext.ReadSequenceLength();
int transactionsCheck = decoderContext.Position + transactionsSequenceLength;
List <Transaction> transactions = new List <Transaction>();
while (decoderContext.Position < transactionsCheck)
{
transactions.Add(Rlp.Decode <Transaction>(ref decoderContext));
}
decoderContext.Check(transactionsCheck);
int ommersSequenceLength = decoderContext.ReadSequenceLength();
int ommersCheck = decoderContext.Position + ommersSequenceLength;
List <BlockHeader> ommerHeaders = new List <BlockHeader>();
while (decoderContext.Position < ommersCheck)
{
ommerHeaders.Add(Rlp.Decode <BlockHeader>(ref decoderContext, rlpBehaviors));
}
decoderContext.Check(ommersCheck);
if ((rlpBehaviors & RlpBehaviors.AllowExtraData) != RlpBehaviors.AllowExtraData)
{
decoderContext.Check(blockCheck);
}
return(new Block(header, transactions, ommerHeaders));
}
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 BlockInfo?Decode(ref Rlp.ValueDecoderContext decoderContext, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (decoderContext.IsNextItemNull())
{
decoderContext.ReadByte();
return(null);
}
int lastCheck = decoderContext.ReadSequenceLength() + decoderContext.Position;
Keccak? blockHash = decoderContext.DecodeKeccak();
bool wasProcessed = decoderContext.DecodeBool();
UInt256 totalDifficulty = decoderContext.DecodeUInt256();
BlockMetadata metadata = BlockMetadata.None;
// if we hadn't reached the end of the stream, assume we have metadata to decode
if (decoderContext.Position != lastCheck)
{
metadata = (BlockMetadata)decoderContext.DecodeInt();
}
if ((rlpBehaviors & RlpBehaviors.AllowExtraData) != RlpBehaviors.AllowExtraData)
{
decoderContext.Check(lastCheck);
}
if (blockHash is null)
{
return(null);
}
BlockInfo blockInfo = new(blockHash, totalDifficulty)
{
WasProcessed = wasProcessed,
Metadata = metadata
};
return(blockInfo);
}
}
public BlockInfo?Decode(ref Rlp.ValueDecoderContext decoderContext, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (decoderContext.IsNextItemNull())
{
decoderContext.ReadByte();
return(null);
}
int lastCheck = decoderContext.ReadSequenceLength() + decoderContext.Position;
Keccak? blockHash = decoderContext.DecodeKeccak();
bool wasProcessed = decoderContext.DecodeBool();
UInt256 totalDifficulty = decoderContext.DecodeUInt256();
bool isFinalized = false;
if (_chainWithFinalization)
{
isFinalized = decoderContext.DecodeBool();
}
if ((rlpBehaviors & RlpBehaviors.AllowExtraData) != RlpBehaviors.AllowExtraData)
{
decoderContext.Check(lastCheck);
}
if (blockHash is null)
{
return(null);
}
BlockInfo blockInfo = new(blockHash, totalDifficulty)
{
WasProcessed = wasProcessed,
IsFinalized = isFinalized
};
return(blockInfo);
}
}
public LogEntry?Decode(ref Rlp.ValueDecoderContext decoderContext, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (decoderContext.IsNextItemNull())
{
decoderContext.ReadByte();
return(null);
}
decoderContext.ReadSequenceLength();
Address?address = decoderContext.DecodeAddress();
long sequenceLength = decoderContext.ReadSequenceLength();
Keccak[] topics = new Keccak[sequenceLength / 33];
for (int i = 0; i < topics.Length; i++)
{
topics[i] = decoderContext.DecodeKeccak();
}
byte[] data = decoderContext.DecodeByteArray();
return(new LogEntry(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 TxReceipt Decode(ref Rlp.ValueDecoderContext decoderContext, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (decoderContext.IsNextItemNull())
{
decoderContext.ReadByte();
return(null);
}
bool isStorage = (rlpBehaviors & RlpBehaviors.Storage) != 0;
TxReceipt txReceipt = new TxReceipt();
decoderContext.ReadSequenceLength();
byte[] firstItem = decoderContext.DecodeByteArray();
if (firstItem.Length == 1)
{
txReceipt.StatusCode = firstItem[0];
}
else
{
txReceipt.PostTransactionState = firstItem.Length == 0 ? null : new Keccak(firstItem);
}
if (isStorage)
{
txReceipt.BlockHash = decoderContext.DecodeKeccak();
}
if (isStorage)
{
txReceipt.BlockNumber = (long)decoderContext.DecodeUInt256();
}
if (isStorage)
{
txReceipt.Index = decoderContext.DecodeInt();
}
if (isStorage)
{
txReceipt.Sender = decoderContext.DecodeAddress();
}
if (isStorage)
{
txReceipt.Recipient = decoderContext.DecodeAddress();
}
if (isStorage)
{
txReceipt.ContractAddress = decoderContext.DecodeAddress();
}
if (isStorage)
{
txReceipt.GasUsed = (long)decoderContext.DecodeUBigInt();
}
txReceipt.GasUsedTotal = (long)decoderContext.DecodeUBigInt();
txReceipt.Bloom = decoderContext.DecodeBloom();
int lastCheck = decoderContext.ReadSequenceLength() + decoderContext.Position;
List <LogEntry> logEntries = new List <LogEntry>();
while (decoderContext.Position < lastCheck)
{
logEntries.Add(Rlp.Decode <LogEntry>(ref decoderContext, RlpBehaviors.AllowExtraData));
}
bool allowExtraData = (rlpBehaviors & RlpBehaviors.AllowExtraData) != 0;
if (!allowExtraData)
{
decoderContext.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 (decoderContext.PeekByte() == MarkTxHashByte)
{
decoderContext.ReadByte();
txReceipt.TxHash = decoderContext.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 (decoderContext.Position != decoderContext.Length)
{
txReceipt.Error = decoderContext.DecodeString();
}
}
txReceipt.Logs = logEntries.ToArray();
return(txReceipt);
}
public BlockHeader?Decode(ref Rlp.ValueDecoderContext decoderContext,
RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (decoderContext.IsNextItemNull())
{
return(null);
}
var headerRlp = decoderContext.PeekNextItem();
int headerSequenceLength = decoderContext.ReadSequenceLength();
int headerCheck = decoderContext.Position + headerSequenceLength;
Keccak? parentHash = decoderContext.DecodeKeccak();
Keccak? unclesHash = decoderContext.DecodeKeccak();
Address?beneficiary = decoderContext.DecodeAddress();
Keccak? stateRoot = decoderContext.DecodeKeccak();
Keccak? transactionsRoot = decoderContext.DecodeKeccak();
Keccak? receiptsRoot = decoderContext.DecodeKeccak();
Bloom? bloom = decoderContext.DecodeBloom();
UInt256 difficulty = decoderContext.DecodeUInt256();
long number = decoderContext.DecodeLong();
long gasLimit = decoderContext.DecodeLong();
long gasUsed = decoderContext.DecodeLong();
UInt256 timestamp = decoderContext.DecodeUInt256();
byte[]? extraData = decoderContext.DecodeByteArray();
BlockHeader blockHeader = new(
parentHash,
unclesHash,
beneficiary,
difficulty,
number,
gasLimit,
timestamp,
extraData)
{
StateRoot = stateRoot,
TxRoot = transactionsRoot,
ReceiptsRoot = receiptsRoot,
Bloom = bloom,
GasUsed = gasUsed,
Hash = Keccak.Compute(headerRlp)
};
if (decoderContext.PeekPrefixAndContentLength().ContentLength == Keccak.Size)
{
blockHeader.MixHash = decoderContext.DecodeKeccak();
blockHeader.Nonce = (ulong)decoderContext.DecodeUBigInt();
}
else
{
blockHeader.AuRaStep = (long)decoderContext.DecodeUInt256();
blockHeader.AuRaSignature = decoderContext.DecodeByteArray();
}
if (blockHeader.Number >= Eip1559TransitionBlock)
{
blockHeader.BaseFeePerGas = decoderContext.DecodeUInt256();
}
if ((rlpBehaviors & RlpBehaviors.AllowExtraData) != RlpBehaviors.AllowExtraData)
{
decoderContext.Check(headerCheck);
}
return(blockHeader);
}
public Keccak Decode(ref Rlp.ValueDecoderContext decoderContext, RlpBehaviors rlpBehaviors = RlpBehaviors.None) => decoderContext.DecodeKeccak();
public BlockHeader Decode(Rlp.ValueDecoderContext decoderContext, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (decoderContext.IsNextItemNull())
{
return(null);
}
var headerRlp = decoderContext.PeekNextItem();
int headerSequenceLength = decoderContext.ReadSequenceLength();
int headerCheck = decoderContext.Position + headerSequenceLength;
Keccak parentHash = decoderContext.DecodeKeccak();
Keccak ommersHash = decoderContext.DecodeKeccak();
Address beneficiary = decoderContext.DecodeAddress();
Keccak stateRoot = decoderContext.DecodeKeccak();
Keccak transactionsRoot = decoderContext.DecodeKeccak();
Keccak receiptsRoot = decoderContext.DecodeKeccak();
Bloom bloom = decoderContext.DecodeBloom();
UInt256 difficulty = decoderContext.DecodeUInt256();
UInt256 number = decoderContext.DecodeUInt256();
UInt256 gasLimit = decoderContext.DecodeUInt256();
UInt256 gasUsed = decoderContext.DecodeUInt256();
UInt256 timestamp = decoderContext.DecodeUInt256();
byte[] extraData = decoderContext.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 (decoderContext.PeekPrefixAndContentLength().ContentLength == Keccak.Size)
{
blockHeader.MixHash = decoderContext.DecodeKeccak();
blockHeader.Nonce = (ulong)decoderContext.DecodeUBigInt();
}
else
{
blockHeader.AuRaStep = (long)decoderContext.DecodeUInt256();
blockHeader.AuRaSignature = decoderContext.DecodeByteArray();
}
if ((rlpBehaviors & RlpBehaviors.AllowExtraData) != RlpBehaviors.AllowExtraData)
{
decoderContext.Check(headerCheck);
}
return(blockHeader);
}
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);
}
