private static BlockForRpc BuildBlock(DeltaWithCid deltaWithCid, long blockNumber, IHashProvider hashProvider)
{
var(delta, deltaHash) = deltaWithCid;
Address author;
var firstCoinBaseEntry = delta.CoinbaseEntries.FirstOrDefault();
if (firstCoinBaseEntry != null)
{
author = new Address(Keccak.Compute(firstCoinBaseEntry.ReceiverPublicKey.ToByteArray()));
}
else
{
author = Address.Zero;
}
var nonce = new byte[8];
BinaryPrimitives.WriteUInt64BigEndian(nonce, 42);
BlockForRpc blockForRpc = new BlockForRpc
{
ExtraData = new byte[0],
Miner = author,
Difficulty = 1,
Hash = deltaHash,
Number = blockNumber,
GasLimit = (long)delta.GasLimit,
GasUsed = delta.GasUsed,
Timestamp = new UInt256(delta.TimeStamp.Seconds),
ParentHash = blockNumber == 0 ? null : Cid.Read(delta.PreviousDeltaDfsHash.ToByteArray()),
StateRoot = delta.StateRoot.ToKeccak(),
ReceiptsRoot = Keccak.EmptyTreeHash,
TransactionsRoot = Keccak.EmptyTreeHash,
LogsBloom = Bloom.Empty,
MixHash = Keccak.Zero,
Nonce = nonce,
Uncles = new Keccak[0],
Transactions = delta.PublicEntries.Select(x => x.GetHash(hashProvider))
};
blockForRpc.TotalDifficulty = (UInt256)((long)blockForRpc.Difficulty * (blockNumber + 1));
blockForRpc.Sha3Uncles = Keccak.OfAnEmptySequenceRlp;
return(blockForRpc);
}
protected override BlockForRpc Handle(BlockParameter block, IWeb3EthApi api)
{
Cid deltaHash;
long blockNumber;
IDeltaCache deltaCache = api.DeltaCache;
IDeltaResolver deltaResolver = api.DeltaResolver;
switch (block.Type)
{
case BlockParameterType.Earliest:
deltaHash = deltaCache.GenesisHash;
blockNumber = 0;
break;
case BlockParameterType.Latest:
deltaHash = deltaResolver.LatestDelta;
blockNumber = deltaResolver.LatestDeltaNumber;
break;
case BlockParameterType.Pending:
deltaHash = deltaResolver.LatestDelta;
blockNumber = deltaResolver.LatestDeltaNumber;
break;
case BlockParameterType.BlockNumber:
blockNumber = block.BlockNumber.Value;
if (!deltaResolver.TryResolve(blockNumber, out deltaHash))
{
return(null);
}
break;
default:
throw new ArgumentOutOfRangeException();
}
DeltaWithCid deltaWithCid = api.GetDeltaWithCid(deltaHash);
return(BuildBlock(deltaWithCid, blockNumber, api.HashProvider));
}
protected override BlockForRpc Handle(Keccak deltaHash, IWeb3EthApi api)
{
DeltaWithCid deltaWithCid = api.GetDeltaWithCid(deltaHash.ToCid());
return(BuildBlock(deltaWithCid, deltaWithCid.Delta.DeltaNumber, api.HashProvider));
}
