public TxReceipt Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (rlpStream.IsNextItemNull())
{
rlpStream.ReadByte();
return(null);
}
TxReceipt txReceipt = new TxReceipt();
_ = rlpStream.ReadSequenceLength();
byte[] firstItem = rlpStream.DecodeByteArray();
if (firstItem.Length == 1 && (firstItem[0] == 0 || firstItem[0] == 1))
{
txReceipt.StatusCode = firstItem[0];
txReceipt.GasUsedTotal = (long)rlpStream.DecodeUBigInt();
}
else if (firstItem.Length >= 1 && firstItem.Length <= 4)
{
txReceipt.GasUsedTotal = (long)firstItem.ToUnsignedBigInteger();
txReceipt.SkipStateAndStatusInRlp = true;
}
else
{
txReceipt.PostTransactionState = firstItem.Length == 0 ? null : new Keccak(firstItem);
txReceipt.GasUsedTotal = (long)rlpStream.DecodeUBigInt();
}
txReceipt.Bloom = rlpStream.DecodeBloom();
int lastCheck = rlpStream.ReadSequenceLength() + rlpStream.Position;
int numberOfReceipts = rlpStream.ReadNumberOfItemsRemaining(lastCheck);
LogEntry[] entries = new LogEntry[numberOfReceipts];
for (int i = 0; i < numberOfReceipts; i++)
{
entries[i] = Rlp.Decode <LogEntry>(rlpStream, RlpBehaviors.AllowExtraData);
}
txReceipt.Logs = entries;
return(txReceipt);
}
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 & RlpBehaviors.AllowExtraData) != RlpBehaviors.AllowExtraData)
{
rlpStream.Check(blockCheck);
}
return(new Block(header, transactions, ommerHeaders));
}
public Account Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
rlpStream.ReadSequenceLength();
UInt256 nonce = rlpStream.DecodeUInt256();
UInt256 balance = rlpStream.DecodeUInt256();
Keccak storageRoot = rlpStream.DecodeKeccak();
Keccak codeHash = rlpStream.DecodeKeccak();
Account account = new Account(nonce, balance, storageRoot, codeHash);
return(account);
}
public TxReceipt Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (rlpStream.IsNextItemNull())
{
rlpStream.ReadByte();
return(null);
}
TxReceipt txReceipt = new TxReceipt();
var lenght = rlpStream.ReadSequenceLength();
byte[] firstItem = rlpStream.DecodeByteArray();
if (firstItem.Length == 1 && (firstItem[0] == 0 || firstItem[0] == 1))
{
txReceipt.StatusCode = firstItem[0];
txReceipt.GasUsedTotal = (long)rlpStream.DecodeUBigInt();
}
else if (firstItem.Length >= 1 && firstItem.Length <= 4)
{
txReceipt.GasUsedTotal = (long)firstItem.ToUnsignedBigInteger();
txReceipt.SkipStateAndStatusInRlp = true;
}
else
{
txReceipt.PostTransactionState = firstItem.Length == 0 ? null : new Keccak(firstItem);
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));
}
txReceipt.Logs = logEntries.ToArray();
return(txReceipt);
}
public LogEntry?Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (rlpStream.IsNextItemNull())
{
rlpStream.ReadByte();
return(null);
}
rlpStream.ReadSequenceLength();
Address?address = rlpStream.DecodeAddress();
long sequenceLength = rlpStream.ReadSequenceLength();
Keccak[] topics = new Keccak[sequenceLength / 33];
for (int i = 0; i < topics.Length; i++)
{
topics[i] = rlpStream.DecodeKeccak();
}
byte[] data = rlpStream.DecodeByteArray();
return(new LogEntry(address, data, topics));
}
public ChainLevelInfo?Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (rlpStream.Length == 0)
{
throw new RlpException($"Received a 0 length stream when decoding a {nameof(ChainLevelInfo)}");
}
if (rlpStream.IsNextItemNull())
{
return(null);
}
int lastCheck = rlpStream.ReadSequenceLength() + rlpStream.Position;
bool hasMainChainBlock = rlpStream.DecodeBool();
List <BlockInfo> blockInfos = new();
rlpStream.ReadSequenceLength();
while (rlpStream.Position < lastCheck)
{
// block info can be null for corrupted states (also cases where block hash is null from the old DBs)
BlockInfo?blockInfo = Rlp.Decode <BlockInfo?>(rlpStream, RlpBehaviors.AllowExtraData);
if (blockInfo is not null)
{
blockInfos.Add(blockInfo);
}
}
if ((rlpBehaviors & RlpBehaviors.AllowExtraData) != RlpBehaviors.AllowExtraData)
{
rlpStream.Check(lastCheck);
}
ChainLevelInfo info = new(hasMainChainBlock, blockInfos.ToArray());
return(info);
}
public static T[] DecodeArray <T>(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (Decoders.ContainsKey(typeof(T)))
{
IRlpDecoder <T> decoder = (IRlpDecoder <T>)Decoders[typeof(T)];
int checkPosition = rlpStream.ReadSequenceLength() + rlpStream.Position;
T[] result = new T[rlpStream.ReadNumberOfItemsRemaining(checkPosition)];
for (int i = 0; i < result.Length; i++)
{
result[i] = decoder.Decode(rlpStream, rlpBehaviors);
}
return(result);
}
throw new RlpException($"{nameof(Rlp)} does not support decoding {typeof(T).Name}");
}
public Account?Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
int length = rlpStream.ReadSequenceLength();
if (length == 1)
{
return(null);
}
UInt256 nonce = rlpStream.DecodeUInt256();
UInt256 balance = rlpStream.DecodeUInt256();
Keccak storageRoot = DecodeStorageRoot(rlpStream);
Keccak codeHash = DecodeCodeHash(rlpStream);
Account account = new(nonce, balance, storageRoot, codeHash);
return(account);
}
public BlockInfo?Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (rlpStream.IsNextItemNull())
{
rlpStream.ReadByte();
return(null);
}
int lastCheck = rlpStream.ReadSequenceLength() + rlpStream.Position;
Keccak?blockHash = rlpStream.DecodeKeccak();
bool wasProcessed = rlpStream.DecodeBool();
UInt256 totalDifficulty = rlpStream.DecodeUInt256();
BlockMetadata metadata = BlockMetadata.None;
// if we hadn't reached the end of the stream, assume we have metadata to decode
if (rlpStream.Position != lastCheck)
{
metadata = (BlockMetadata)rlpStream.DecodeInt();
}
if ((rlpBehaviors & RlpBehaviors.AllowExtraData) != RlpBehaviors.AllowExtraData)
{
rlpStream.Check(lastCheck);
}
if (blockHash is null)
{
return(null);
}
BlockInfo blockInfo = new(blockHash, totalDifficulty)
{
WasProcessed = wasProcessed,
Metadata = metadata,
};
return(blockInfo);
}
public BlockInfo?Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (rlpStream.IsNextItemNull())
{
rlpStream.ReadByte();
return(null);
}
int lastCheck = rlpStream.ReadSequenceLength() + rlpStream.Position;
Keccak?blockHash = rlpStream.DecodeKeccak();
bool wasProcessed = rlpStream.DecodeBool();
UInt256 totalDifficulty = rlpStream.DecodeUInt256();
bool isFinalized = false;
if (_chainWithFinalization)
{
isFinalized = rlpStream.DecodeBool();
}
if ((rlpBehaviors & RlpBehaviors.AllowExtraData) != RlpBehaviors.AllowExtraData)
{
rlpStream.Check(lastCheck);
}
if (blockHash is null)
{
return(null);
}
BlockInfo blockInfo = new(blockHash, totalDifficulty)
{
WasProcessed = wasProcessed,
IsFinalized = isFinalized
};
return(blockInfo);
}
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 BlockHeader?Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
if (rlpStream.IsNextItemNull())
{
rlpStream.ReadByte();
return(null);
}
Span <byte> headerRlp = rlpStream.PeekNextItem();
int headerSequenceLength = rlpStream.ReadSequenceLength();
int headerCheck = rlpStream.Position + headerSequenceLength;
Keccak? parentHash = rlpStream.DecodeKeccak();
Keccak? unclesHash = 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();
long number = rlpStream.DecodeLong();
long gasLimit = rlpStream.DecodeLong();
long gasUsed = rlpStream.DecodeLong();
UInt256 timestamp = rlpStream.DecodeUInt256();
byte[]? extraData = rlpStream.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 (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 (blockHeader.Number >= Eip1559TransitionBlock)
{
blockHeader.BaseFeePerGas = rlpStream.DecodeUInt256();
}
if ((rlpBehaviors & RlpBehaviors.AllowExtraData) != RlpBehaviors.AllowExtraData)
{
rlpStream.Check(headerCheck);
}
return(blockHeader);
}
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 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);
}