private void OnPrepareRequestReceived(ConsensusPayload payload, PrepareRequest message) { Log($"{nameof(OnPrepareRequestReceived)}: height={payload.BlockIndex} view={message.ViewNumber} index={payload.ValidatorIndex} tx={message.TransactionHashes.Length}"); if (!context.State.HasFlag(ConsensusState.Backup) || context.State.HasFlag(ConsensusState.RequestReceived)) { return; } if (payload.ValidatorIndex != context.PrimaryIndex) { return; } if (payload.Timestamp <= context.Snapshot.GetHeader(context.PrevHash).Timestamp || payload.Timestamp > DateTime.UtcNow.AddMinutes(10).ToTimestamp()) { Log($"Timestamp incorrect: {payload.Timestamp}", LogLevel.Warning); return; } context.State |= ConsensusState.RequestReceived; context.Timestamp = payload.Timestamp; context.Nonce = message.Nonce; context.NextConsensus = message.NextConsensus; context.TransactionHashes = message.TransactionHashes; 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 = blockchain.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; } } } message.MinerTransaction.ChainHash = chainHash; if (!AddTransaction(message.MinerTransaction, true)) { return; } if (context.Transactions.Count < context.TransactionHashes.Length) { UInt256[] hashes = context.TransactionHashes.Where(i => !context.Transactions.ContainsKey(i)).ToArray(); system.TaskManager.Tell(new TaskManager.RestartTasks { Payload = InvPayload.Create(InventoryType.TX, hashes) }); } }
private void OnPrepareRequestReceived(ConsensusPayload payload, PrepareRequest message) { if (context.State.HasFlag(ConsensusState.RequestReceived)) { return; } if (payload.ValidatorIndex != context.PrimaryIndex) { return; } Log($"{nameof(OnPrepareRequestReceived)}: height={payload.BlockIndex} view={message.ViewNumber} index={payload.ValidatorIndex} tx={message.TransactionHashes.Length}"); if (!context.State.HasFlag(ConsensusState.Backup)) { return; } if (payload.Timestamp <= context.PrevHeader.Timestamp || payload.Timestamp > TimeProvider.Current.UtcNow.AddMinutes(10).ToTimestamp()) { Log($"Timestamp incorrect: {payload.Timestamp}", LogLevel.Warning); return; } context.State |= ConsensusState.RequestReceived; context.Timestamp = payload.Timestamp; context.Nonce = message.Nonce; context.NextConsensus = message.NextConsensus; context.TransactionHashes = message.TransactionHashes; context.Transactions = new Dictionary <UInt256, Transaction>(); byte[] hashData = context.MakeHeader().GetHashData(); if (!Crypto.Default.VerifySignature(hashData, message.Signature, context.Validators[payload.ValidatorIndex].EncodePoint(false))) { return; } for (int i = 0; i < context.Signatures.Length; i++) { if (context.Signatures[i] != null) { if (!Crypto.Default.VerifySignature(hashData, context.Signatures[i], context.Validators[i].EncodePoint(false))) { context.Signatures[i] = null; } } } context.Signatures[payload.ValidatorIndex] = message.Signature; Dictionary <UInt256, Transaction> mempool = blockchain.GetVerifiedTransactions().ToDictionary(p => p.Hash); List <Transaction> unverified = new List <Transaction>(); foreach (UInt256 hash in context.TransactionHashes.Skip(1)) { if (mempool.TryGetValue(hash, out Transaction tx)) { if (!AddTransaction(tx, false)) { return; } } else { tx = blockchain.GetUnverifiedTransaction(hash); if (tx != null) { unverified.Add(tx); } } } foreach (Transaction tx in unverified) { if (!AddTransaction(tx, true)) { return; } } message.MinerTransaction.ChainHash = chainHash; if (!AddTransaction(message.MinerTransaction, true)) { return; } if (context.Transactions.Count < context.TransactionHashes.Length) { UInt256[] hashes = context.TransactionHashes.Where(i => !context.Transactions.ContainsKey(i)).ToArray(); taskManager.Tell(new TaskManager.RestartTasks { Payload = InvPayload.Create(InventoryType.TX, hashes) }); Log($"restart tasks, tx={hashes.Length}"); } }