private bool CheckPrepareResponse()
{
if (context.TransactionHashes.Length == context.Transactions.Count)
{
// if we are the primary for this view, but acting as a backup because we recovered our own
// previously sent prepare request, then we don't want to send a prepare response.
if (context.IsPrimary || context.WatchOnly)
{
return(true);
}
// Check maximum block size via Native Contract policy
if (context.GetExpectedBlockSize() > NativeContract.Policy.GetMaxBlockSize(context.Snapshot))
{
Log($"rejected block: {context.Block.Index}{Environment.NewLine} The size exceed the policy", LogLevel.Warning);
RequestChangeView(ChangeViewReason.BlockRejectedByPolicy);
return(false);
}
// Timeout extension due to prepare response sent
// around 2*15/M=30.0/5 ~ 40% block time (for M=5)
ExtendTimerByFactor(2);
Log($"send prepare response");
localNode.Tell(new LocalNode.SendDirectly {
Inventory = context.MakePrepareResponse()
});
CheckPreparations();
}
return(true);
}
private bool AddTransaction(Transaction tx, bool verify)
{
if (Blockchain.Default.ContainsTransaction(tx.Hash) ||
(verify && !tx.Verify(context.Transactions.Values)) ||
!CheckPolicy(tx))
{
Log($"reject tx: {tx.Hash}{Environment.NewLine}{tx.ToArray().ToHexString()}");
RequestChangeView();
return(false);
}
context.Transactions[tx.Hash] = tx;
if (context.TransactionHashes.Length == context.Transactions.Count)
{
if (Blockchain.GetConsensusAddress(Blockchain.Default.GetValidators(context.Transactions.Values).ToArray()).Equals(context.NextConsensus))
{
Log($"send perpare response");
// 设置共识状态为已发送签名
context.State |= ConsensusState.SignatureSent;
// 添加本地签名到签名列表
context.Signatures[context.MyIndex] = context.MakeHeader().Sign(context.KeyPair);
// 广播共识响应
SignAndRelay(context.MakePrepareResponse(context.Signatures[context.MyIndex]));
// 检查签名状态是否符合共识要求
CheckSignatures();
}
else
{
RequestChangeView();
return(false);
}
}
return(true);
}
private bool AddTransaction(Transaction tx, bool verify)
{
if (context.Snapshot.ContainsTransaction(tx.Hash) ||
(verify && !tx.Verify(context.Snapshot, context.Transactions.Values)) ||
!Plugin.CheckPolicy(tx))
{
Log($"reject tx: {tx.Hash}{Environment.NewLine}{tx.ToArray().ToHexString()}", LogLevel.Warning);
RequestChangeView();
return(false);
}
context.Transactions[tx.Hash] = tx;
if (context.TransactionHashes.Length == context.Transactions.Count)
{
if (context.VerifyRequest())
{
Log($"send prepare response");
context.State |= ConsensusState.SignatureSent;
context.Signatures[context.MyIndex] = context.MakeHeader().Sign(context.KeyPair);
SignAndRelay(context.MakePrepareResponse(context.Signatures[context.MyIndex]));
CheckSignatures();
}
else
{
RequestChangeView();
return(false);
}
}
return(true);
}
private bool AddTransaction(Transaction tx, bool verify)
{
ReportNeoBlockchain reportObj = new ReportNeoBlockchain("[NeoConsensusService-AddTransaction]");
if (Blockchain.Default.ContainsTransaction(tx.Hash) ||
(verify && !tx.Verify(context.Transactions.Values)) ||
!CheckPolicy(tx))
{
Log($"reject tx: {tx.Hash}{Environment.NewLine}{tx.ToArray().ToHexString()}");
RequestChangeView();
return(false);
}
context.Transactions[tx.Hash] = tx;
if (context.TransactionHashes.Length == context.Transactions.Count)
{
if (Blockchain.GetConsensusAddress(Blockchain.Default.GetValidators(context.Transactions.Values).ToArray()).Equals(context.NextConsensus))
{
Log($"send perpare response");
context.State |= ConsensusState.SignatureSent;
context.Signatures[context.MyIndex] = context.MakeHeader().Sign(context.KeyPair);
SignAndRelay(context.MakePrepareResponse(context.Signatures[context.MyIndex]));
CheckSignatures();
}
else
{
RequestChangeView();
return(false);
}
}
reportObj.appendElapsedTime();
return(true);
}
private bool AddTransaction(Transaction tx, bool verify)
{
if (verify && !tx.Verify(context.Snapshot, context.Transactions.Values))
{
Log($"Invalid transaction: {tx.Hash}{Environment.NewLine}{tx.ToArray().ToHexString()}", LogLevel.Warning);
RequestChangeView(ChangeViewReason.TxInvalid);
return(false);
}
if (!NativeContract.Policy.CheckPolicy(tx, context.Snapshot))
{
Log($"reject tx: {tx.Hash}{Environment.NewLine}{tx.ToArray().ToHexString()}", LogLevel.Warning);
RequestChangeView(ChangeViewReason.TxRejectedByPolicy);
return(false);
}
context.Transactions[tx.Hash] = tx;
if (context.TransactionHashes.Length == context.Transactions.Count)
{
// if we are the primary for this view, but acting as a backup because we recovered our own
// previously sent prepare request, then we don't want to send a prepare response.
if (context.IsPrimary || context.WatchOnly)
{
return(true);
}
// Timeout extension due to prepare response sent
// around 2*15/M=30.0/5 ~ 40% block time (for M=5)
ExtendTimerByFactor(2);
Log($"send prepare response");
localNode.Tell(new LocalNode.SendDirectly {
Inventory = context.MakePrepareResponse()
});
CheckPreparations();
}
return(true);
}
