private void OnPrepareRequestReceived(ConsensusPayload payload, PrepareRequest message)
{
Log($"{nameof(OnPrepareRequestReceived)}: height={payload.BlockIndex} view={message.ViewNumber} index={payload.ValidatorIndex} tx={message.TransactionHashes.Length}");
if (!context.State.HasFlag(ConsensusState.Backup) || context.State.HasFlag(ConsensusState.RequestReceived))
{
return;
}
if (payload.ValidatorIndex != context.PrimaryIndex)
{
return;
}
if (payload.Timestamp <= Blockchain.Default.GetHeader(context.PrevHash).Timestamp || payload.Timestamp > DateTime.Now.AddMinutes(10).ToTimestamp())
{
Log($"Timestamp incorrect: {payload.Timestamp}");
return;
}
context.State |= ConsensusState.RequestReceived;
context.Timestamp = payload.Timestamp;
context.Nonce = message.Nonce;
context.CurrentConsensus = message.CurrentConsensus;
context.NextConsensus = message.NextConsensus;
context.TransactionHashes = message.TransactionHashes;
if (context.TransactionHashes.Length > MaxTransactionsPerBlock)
{
return;
}
context.Transactions = new Dictionary <UInt256, Transaction>();
if (!Crypto.Default.VerifySignature(context.MakeHeader().GetHashData(), message.Signature, context.Validators[payload.ValidatorIndex].EncodePoint(false)))
{
return;
}
context.Signatures = new byte[context.Validators.Length][];
context.Signatures[payload.ValidatorIndex] = message.Signature;
Dictionary <UInt256, Transaction> mempool = LocalNode.GetMemoryPool().ToDictionary(p => p.Hash);
foreach (UInt256 hash in context.TransactionHashes.Skip(1))
{
if (mempool.TryGetValue(hash, out Transaction tx))
{
if (!AddTransaction(tx, false))
{
return;
}
}
}
if (!AddTransaction(message.MinerTransaction, true))
{
return;
}
LocalNode.AllowHashes(context.TransactionHashes.Except(context.Transactions.Keys));
if (context.Transactions.Count < context.TransactionHashes.Length)
{
localNode.SynchronizeMemoryPool();
}
}
private void OnPerpareRequestReceived(ConsensusPayload payload, PerpareRequest message)
{
Log($"{nameof(OnPerpareRequestReceived)} h:{payload.Height} v:{message.ViewNumber} i:{payload.MinerIndex} tx:{message.TransactionHashes.Length}");
if (!context.State.HasFlag(ConsensusState.Backup) || context.State.HasFlag(ConsensusState.RequestReceived))
{
return;
}
if (payload.MinerIndex != context.PrimaryIndex)
{
return;
}
if (payload.Timestamp <= Blockchain.Default.GetHeader(context.PrevHash).Timestamp || payload.Timestamp > DateTime.Now.AddMinutes(10).ToTimestamp())
{
Log($"Timestamp incorrect:{payload.Timestamp}");
return;
}
context.State |= ConsensusState.RequestReceived;
context.Timestamp = payload.Timestamp;
context.Nonce = message.Nonce;
context.NextMiner = message.NextMiner;
context.TransactionHashes = message.TransactionHashes;
context.Transactions = new Dictionary <UInt256, Transaction>();
if (!context.MakeHeader().VerifySignature(context.Miners[payload.MinerIndex], message.Signature))
{
return;
}
context.Signatures = new byte[context.Miners.Length][];
context.Signatures[payload.MinerIndex] = message.Signature;
if (!AddTransaction(message.MinerTransaction))
{
return;
}
Dictionary <UInt256, Transaction> mempool = LocalNode.GetMemoryPool().ToDictionary(p => p.Hash);
foreach (UInt256 hash in context.TransactionHashes.Skip(1))
{
if (mempool.ContainsKey(hash))
{
if (!AddTransaction(mempool[hash]))
{
return;
}
}
}
LocalNode.AllowHashes(context.TransactionHashes.Except(context.Transactions.Keys));
if (context.Transactions.Count < context.TransactionHashes.Length)
{
LocalNode.SynchronizeMemoryPool();
}
}