/// <summary>
/// Suggested block validation runs basic checks that can be executed before going through the expensive EVM processing.
/// </summary>
/// <param name="block">A block to validate</param>
/// <returns><value>True</value> if the <paramref name="block"/> is valid, otherwise <value>False</value></returns>
public bool ValidateSuggestedBlock(Block block)
{
Transaction[] txs = block.Transactions;
IReleaseSpec spec = _specProvider.GetSpec(block.Number);
for (int i = 0; i < txs.Length; i++)
{
if (!_txValidator.IsWellFormed(txs[i], spec))
{
if (_logger.IsDebug)
{
_logger.Debug($"Invalid block ({block.ToString(Block.Format.FullHashAndNumber)}) - invalid transaction ({txs[i].Hash})");
}
return(false);
}
}
if (spec.MaximumUncleCount < block.Ommers.Length)
{
_logger.Debug($"Invalid block ({block.ToString(Block.Format.FullHashAndNumber)}) - uncle count is {block.Ommers.Length} (MAX: {spec.MaximumUncleCount})");
return(false);
}
if (block.Header.OmmersHash != OmmersHash.Calculate(block))
{
_logger.Debug($"Invalid block ({block.ToString(Block.Format.FullHashAndNumber)}) - invalid uncles hash");
return(false);
}
if (!_ommersValidator.Validate(block.Header, block.Ommers))
{
_logger.Debug($"Invalid block ({block.ToString(Block.Format.FullHashAndNumber)}) - invalid uncles");
return(false);
}
bool blockHeaderValid = _headerValidator.Validate(block.Header);
if (!blockHeaderValid)
{
if (_logger.IsDebug)
{
_logger.Debug($"Invalid block ({block.ToString(Block.Format.FullHashAndNumber)}) - invalid header");
}
return(false);
}
Keccak txRoot = new TxTrie(block.Transactions).RootHash;
if (txRoot != block.Header.TxRoot)
{
if (_logger.IsDebug)
{
_logger.Debug($"Invalid block ({block.ToString(Block.Format.FullHashAndNumber)}) tx root {txRoot} != stated tx root {block.Header.TxRoot}");
}
return(false);
}
return(true);
}
/// <summary>
/// Suggested block validation runs basic checks that can be executed before going through the expensive EVM processing.
/// </summary>
/// <param name="block">A block to validate</param>
/// <returns><value>True</value> if the <paramref name="block"/> is valid, otherwise <value>False</value></returns>
public bool ValidateSuggestedBlock(Block block)
{
Transaction[] txs = block.Transactions;
for (int i = 0; i < txs.Length; i++)
{
if (!_txValidator.IsWellFormed(txs[i], _specProvider.GetSpec(block.Number)))
{
if (_logger.IsDebug)
{
_logger.Debug($"Invalid block ({block.ToString(Block.Format.FullHashAndNumber)}) - invalid transaction ({txs[i].Hash})");
}
return(false);
}
}
if (!_ommersValidator.Validate(block.Header, block.Ommers))
{
_logger?.Debug($"Invalid block ({block.ToString(Block.Format.FullHashAndNumber)}) - invalid ommers");
return(false);
}
bool blockHeaderValid = _headerValidator.Validate(block.Header);
if (!blockHeaderValid)
{
if (_logger.IsDebug)
{
_logger.Debug($"Invalid block ({block.ToString(Block.Format.FullHashAndNumber)}) - invalid header");
}
return(false);
}
if (block.Header.OmmersHash != Keccak.Compute(Rlp.Encode(block.Ommers)))
{
_logger?.Debug($"Invalid block ({block.ToString(Block.Format.FullHashAndNumber)}) - invalid ommers hash");
return(false);
}
Keccak txRoot = block.CalculateTxRoot();
if (txRoot != block.Header.TransactionsRoot)
{
if (_logger.IsDebug)
{
_logger.Debug($"Invalid block ({block.ToString(Block.Format.FullHashAndNumber)}) tx root {txRoot} != stated tx root {block.Header.TransactionsRoot}");
}
return(false);
}
return(true);
}
public AcceptTxResult Accept(Transaction tx, TxHandlingOptions txHandlingOptions)
{
IReleaseSpec spec = _specProvider.GetCurrentHeadSpec();
if (!_txValidator.IsWellFormed(tx, spec))
{
// It may happen that other nodes send us transactions that were signed for another chain or don't have enough gas.
if (_logger.IsTrace)
{
_logger.Trace($"Skipped adding transaction {tx.ToString(" ")}, invalid transaction.");
}
return(AcceptTxResult.Invalid);
}
return(AcceptTxResult.Accepted);
}