private BlockMsg convertEntityToBlockMsg(Block entity) { var txDac = new TransactionDac(); var inputDac = new InputDac(); var outputDac = new OutputDac(); var blockMsg = new BlockMsg(); var headerMsg = new BlockHeaderMsg(); headerMsg.Version = entity.Version; headerMsg.Hash = entity.Hash; headerMsg.Height = entity.Height; headerMsg.PreviousBlockHash = entity.PreviousBlockHash; headerMsg.Bits = entity.Bits; headerMsg.Nonce = entity.Nonce; headerMsg.Timestamp = entity.Timestamp; var transactions = txDac.SelectByBlockHash(entity.Hash); headerMsg.TotalTransaction = transactions == null ? 0: transactions.Count; foreach (var tx in transactions) { var txMsg = new TransactionMsg(); txMsg.Version = tx.Version; txMsg.Hash = tx.Hash; txMsg.Timestamp = tx.Timestamp; txMsg.Locktime = tx.LockTime; var inputs = inputDac.SelectByTransactionHash(tx.Hash); var outputs = outputDac.SelectByTransactionHash(tx.Hash); foreach (var input in inputs) { txMsg.Inputs.Add(new InputMsg { OutputTransactionHash = input.OutputTransactionHash, OutputIndex = input.OutputIndex, Size = input.Size, UnlockScript = input.UnlockScript }); } foreach (var output in outputs) { txMsg.Outputs.Add(new OutputMsg { Index = output.Index, Amount = output.Amount, Size = output.Size, LockScript = output.LockScript }); } blockMsg.Transactions.Add(txMsg); } blockMsg.Header = headerMsg; return(blockMsg); }
public List <BlockHeaderMsg> GetBlockHeaderMsgByHeights(List <long> heights) { var blockDac = new BlockDac(); var txDac = new TransactionDac(); var headers = new List <BlockHeaderMsg>(); foreach (var height in heights) { var items = blockDac.SelectByHeight(height); foreach (var entity in items) { var header = new BlockHeaderMsg(); header.Version = entity.Version; header.Hash = entity.Hash; header.Height = entity.Height; header.PreviousBlockHash = entity.PreviousBlockHash; header.Bits = entity.Bits; header.Nonce = entity.Nonce; header.Timestamp = entity.Timestamp; var transactions = txDac.SelectByBlockHash(entity.Hash); header.TotalTransaction = entity.Transactions == null ? 0 : entity.Transactions.Count; headers.Add(header); } } return(headers); }
public void BroadcastNewBlockMessage(BlockHeaderMsg blockHeader) { var nodes = this.p2pComponent.GetNodes(); foreach (var node in nodes) { if (node.IsConnected && !node.IsTrackerServer) { var payload = new NewBlockMsg(); payload.Header = blockHeader; var cmd = P2PCommand.CreateCommand(this.Identity.ToString(), CommandNames.Block.NewBlock, payload); this.p2pComponent.SendCommand(node.IP, node.Port, cmd); } } }
public List <BlockHeaderMsg> GetBlockHeaderMsgByHeights(List <long> heights) { var blockDac = new BlockDac(); var txDac = new TransactionDac(); var headers = new List <BlockHeaderMsg>(); foreach (var height in heights) { var items = blockDac.SelectByHeight(height); foreach (var entity in items) { var header = new BlockHeaderMsg(); header.Version = entity.Version; header.Hash = entity.Hash; header.Height = entity.Height; header.PreviousBlockHash = entity.PreviousBlockHash; header.Bits = entity.Bits; header.Nonce = entity.Nonce; header.Timestamp = entity.Timestamp; header.GeneratorId = entity.GeneratorId; //header.GenerationSignature = entity.GenerationSignature; //header.BlockSignature = entity.BlockSignature; //header.CumulativeDifficulty = entity.CumulativeDifficulty; header.PayloadHash = entity.PayloadHash; header.BlockSignature = entity.BlockSignature; header.BlockSigSize = entity.BlockSignature.Length; var transactions = txDac.SelectByBlockHash(entity.Hash); header.TotalTransaction = entity.Transactions == null ? 0 : entity.Transactions.Count; headers.Add(header); } } return(headers); }
/// <summary> /// 创建新的区块 /// </summary> /// <param name="minerName"></param> /// <param name="generatorId"></param> /// <param name="accountId"></param> /// <returns></returns> public BlockMsg CreateNewBlock(string minerName, string generatorId, string remark = null, string accountId = null) { var accountDac = new AccountDac(); var blockDac = new BlockDac(); var outputDac = new OutputDac(); var txDac = new TransactionDac(); var txPool = TransactionPool.Instance; var transactionMsgs = new List <TransactionMsg>(); long lastBlockHeight = -1; string lastBlockHash = Base16.Encode(HashHelper.EmptyHash()); long lastBlockBits = -1; string lastBlockGenerator = null; //获取最后一个区块 var blockEntity = blockDac.SelectLast(); if (blockEntity != null) { lastBlockHeight = blockEntity.Height; lastBlockHash = blockEntity.Hash; lastBlockBits = blockEntity.Bits; lastBlockGenerator = blockEntity.GeneratorId; } long totalSize = 0; long maxSize = BlockSetting.MAX_BLOCK_SIZE - (1 * 1024); var poolItemList = txPool.MainPool.OrderByDescending(t => t.FeeRate).ToList(); var index = 0; while (totalSize < maxSize && index < poolItemList.Count) { var tx = poolItemList[index].Transaction; if (tx != null && transactionMsgs.Where(t => t.Hash == tx.Hash).Count() == 0) { if (txDac.SelectByHash(tx.Hash) == null) { transactionMsgs.Add(tx); totalSize += tx.Size; } else { txPool.RemoveTransaction(tx.Hash); } } else { break; } index++; } var minerAccount = accountDac.SelectDefaultAccount(); if (accountId != null) { var account = accountDac.SelectById(accountId); if (account != null && !string.IsNullOrWhiteSpace(account.PrivateKey)) { minerAccount = account; } } var minerAccountId = minerAccount.Id; BlockMsg newBlockMsg = new BlockMsg(); BlockHeaderMsg headerMsg = new BlockHeaderMsg(); headerMsg.Hash = Base16.Encode(HashHelper.EmptyHash()); headerMsg.GeneratorId = generatorId; newBlockMsg.Header = headerMsg; headerMsg.Height = lastBlockHeight + 1; headerMsg.PreviousBlockHash = lastBlockHash; if (headerMsg.Height == 0) { minerAccountId = BlockSetting.GenesisBlockReceiver; remark = BlockSetting.GenesisBlockRemark; } long totalAmount = 0; long totalFee = 0; foreach (var tx in transactionMsgs) { long totalInputsAmount = 0L; long totalOutputAmount = 0L; foreach (var input in tx.Inputs) { var utxo = outputDac.SelectByHashAndIndex(input.OutputTransactionHash, input.OutputIndex); if (utxo != null) { totalInputsAmount += utxo.Amount; } } foreach (var output in tx.Outputs) { totalOutputAmount += output.Amount; } totalAmount += totalOutputAmount; totalFee += (totalInputsAmount - totalOutputAmount); } //var work = new POW(headerMsg.Height); BlockMsg prevBlockMsg = null; BlockMsg prevStepBlockMsg = null; if (blockEntity != null) { prevBlockMsg = this.convertEntityToBlockMsg(blockEntity); } if (headerMsg.Height >= POC.DIFFIUCLTY_ADJUST_STEP) { prevStepBlockMsg = this.GetBlockMsgByHeight(headerMsg.Height - POC.DIFFIUCLTY_ADJUST_STEP - 1); } var newBlockReward = POC.GetNewBlockReward(headerMsg.Height); headerMsg.Bits = POC.CalculateBaseTarget(headerMsg.Height, prevBlockMsg, prevStepBlockMsg); headerMsg.TotalTransaction = transactionMsgs.Count + 1; var coinbaseTxMsg = new TransactionMsg(); coinbaseTxMsg.Timestamp = Time.EpochTime; coinbaseTxMsg.Locktime = 0; var coinbaseInputMsg = new InputMsg(); coinbaseTxMsg.Inputs.Add(coinbaseInputMsg); coinbaseInputMsg.OutputIndex = 0; coinbaseInputMsg.OutputTransactionHash = Base16.Encode(HashHelper.EmptyHash()); coinbaseInputMsg.UnlockScript = Script.BuildMinerScript(minerName, remark); coinbaseInputMsg.Size = coinbaseInputMsg.UnlockScript.Length; var coinbaseOutputMsg = new OutputMsg(); coinbaseTxMsg.Outputs.Add(coinbaseOutputMsg); coinbaseOutputMsg.Amount = newBlockReward + totalFee; coinbaseOutputMsg.LockScript = Script.BuildLockScipt(minerAccountId); coinbaseOutputMsg.Size = coinbaseOutputMsg.LockScript.Length; coinbaseOutputMsg.Index = 0; coinbaseTxMsg.Hash = coinbaseTxMsg.GetHash(); newBlockMsg.Transactions.Insert(0, coinbaseTxMsg); foreach (var tx in transactionMsgs) { newBlockMsg.Transactions.Add(tx); } headerMsg.PayloadHash = newBlockMsg.GetPayloadHash(); var dsa = ECDsa.ImportPrivateKey(Base16.Decode(minerAccount.PrivateKey)); var signResult = dsa.SingnData(Base16.Decode(headerMsg.PayloadHash)); headerMsg.BlockSignature = Base16.Encode(signResult); headerMsg.BlockSigSize = headerMsg.BlockSignature.Length; headerMsg.TotalTransaction = newBlockMsg.Transactions.Count; return(newBlockMsg); }
public BlockMsg CreateNewBlock(string minerName, string accountId = null) { var accountDac = new AccountDac(); var blockDac = new BlockDac(); var outputDac = new OutputDac(); var txDac = new TransactionDac(); var txPool = TransactionPool.Instance; var transactionMsgs = new List <TransactionMsg>(); long lastBlockHeight = -1; string lastBlockHash = Base16.Encode(HashHelper.EmptyHash()); long lastBlockBits = -1; var blockEntity = blockDac.SelectLast(); if (blockEntity != null) { lastBlockHeight = blockEntity.Height; lastBlockHash = blockEntity.Hash; lastBlockBits = blockEntity.Bits; } long totalSize = 0; long maxSize = BlockSetting.MAX_BLOCK_SIZE - (500 * 1024); var poolItemList = txPool.MainPool.OrderByDescending(t => t.FeeRate).ToList(); var index = 0; while (totalSize < maxSize && index < poolItemList.Count) { var tx = poolItemList[index].Transaction; if (tx != null && transactionMsgs.Where(t => t.Hash == tx.Hash).Count() == 0) { if (txDac.SelectByHash(tx.Hash) == null) { transactionMsgs.Add(tx); totalSize += tx.Size; } else { txPool.RemoveTransaction(tx.Hash); } } else { break; } index++; } var minerAccount = accountDac.SelectDefaultAccount(); if (accountId != null) { var account = accountDac.SelectById(accountId); if (account != null && !string.IsNullOrWhiteSpace(account.PrivateKey)) { minerAccount = account; } } BlockMsg newBlockMsg = new BlockMsg(); BlockHeaderMsg headerMsg = new BlockHeaderMsg(); newBlockMsg.Header = headerMsg; headerMsg.Height = lastBlockHeight + 1; headerMsg.PreviousBlockHash = lastBlockHash; long totalAmount = 0; long totalFee = 0; foreach (var tx in transactionMsgs) { long totalInputsAmount = 0L; long totalOutputAmount = 0L; foreach (var input in tx.Inputs) { var utxo = outputDac.SelectByHashAndIndex(input.OutputTransactionHash, input.OutputIndex); if (utxo != null) { totalInputsAmount += utxo.Amount; } } foreach (var output in tx.Outputs) { totalOutputAmount += output.Amount; } totalAmount += totalOutputAmount; totalFee += (totalInputsAmount - totalOutputAmount); } var work = new POW(headerMsg.Height); BlockMsg previous4032Block = null; if (headerMsg.Height > POW.DiffiucltyAdjustStep) { previous4032Block = this.GetBlockMsgByHeight(headerMsg.Height - POW.DiffiucltyAdjustStep); } var newBlockReward = work.GetNewBlockReward(); headerMsg.Bits = work.CalculateNextWorkTarget(lastBlockHeight, lastBlockBits, previous4032Block); headerMsg.TotalTransaction = transactionMsgs.Count + 1; var coinbaseTxMsg = new TransactionMsg(); coinbaseTxMsg.Timestamp = Time.EpochTime; coinbaseTxMsg.Locktime = 0; var coinbaseInputMsg = new InputMsg(); coinbaseTxMsg.Inputs.Add(coinbaseInputMsg); coinbaseInputMsg.OutputIndex = 0; coinbaseInputMsg.OutputTransactionHash = Base16.Encode(HashHelper.EmptyHash()); coinbaseInputMsg.UnlockScript = Script.BuildMinerScript(minerName); coinbaseInputMsg.Size = coinbaseInputMsg.UnlockScript.Length; var coinbaseOutputMsg = new OutputMsg(); coinbaseTxMsg.Outputs.Add(coinbaseOutputMsg); coinbaseOutputMsg.Amount = newBlockReward + totalFee; coinbaseOutputMsg.LockScript = Script.BuildLockScipt(minerAccount.Id); coinbaseOutputMsg.Size = coinbaseOutputMsg.LockScript.Length; coinbaseOutputMsg.Index = 0; coinbaseTxMsg.Hash = coinbaseTxMsg.GetHash(); newBlockMsg.Transactions.Insert(0, coinbaseTxMsg); foreach (var tx in transactionMsgs) { newBlockMsg.Transactions.Add(tx); } return(newBlockMsg); }
/// <summary> /// 创建新的区块 /// </summary> /// <param name="minerName"></param> /// <param name="generatorId"></param> /// <param name="accountId"></param> /// <returns></returns> public BlockMsg CreateNewBlock(string minerName, string generatorId, string remark = null, string accountId = null) { var accountDac = AccountDac.Default; var blockDac = BlockDac.Default; var txDac = TransactionDac.Default; var txPool = TransactionPool.Instance; var txComponent = new TransactionComponent(); var transactionMsgs = new List <TransactionMsg>(); long lastBlockHeight = -1; string lastBlockHash = Base16.Encode(HashHelper.EmptyHash()); long lastBlockBits = -1; string lastBlockGenerator = null; //获取最后一个区块 var blockEntity = blockDac.SelectLast(); if (blockEntity != null) { lastBlockHeight = blockEntity.Header.Height; lastBlockHash = blockEntity.Header.Hash; lastBlockBits = blockEntity.Header.Bits; lastBlockGenerator = blockEntity.Header.GeneratorId; } long totalSize = 0; long totalInput = 0; long totalOutput = 0; long totalAmount = 0; long totalFee = 0; long maxSize = Consensus.BlockSetting.MAX_BLOCK_SIZE - (1 * 1024); //获取待打包的交易 var txs = txPool.GetTxsWithoutRepeatCost(10, maxSize); var hashIndexs = new List <string>(); foreach (var tx in txs) { totalSize += tx.Size; totalInput += tx.InputCount; totalOutput += tx.OutputCount; hashIndexs.AddRange(tx.Inputs.Select(x => $"{x.OutputTransactionHash}_{x.OutputIndex}")); long totalOutputAmount = tx.Outputs.Sum(x => x.Amount); totalAmount += totalOutputAmount; } var utxos = UtxoSetDac.Default.Get(hashIndexs); var totalInputAmount = utxos.Sum(x => x.Amount); totalFee = totalInputAmount - totalAmount; transactionMsgs.AddRange(txs); var accounts = AccountDac.Default.SelectAll(); var minerAccount = accounts.OrderBy(x => x.Timestamp).FirstOrDefault(); if (accountId != null) { var account = accounts.FirstOrDefault(x => x.Id == accountId); if (account != null && !string.IsNullOrWhiteSpace(account.PrivateKey)) { minerAccount = account; } } var minerAccountId = minerAccount.Id; BlockMsg newBlockMsg = new BlockMsg(); BlockHeaderMsg headerMsg = new BlockHeaderMsg(); headerMsg.Hash = Base16.Encode(HashHelper.EmptyHash()); headerMsg.GeneratorId = generatorId; newBlockMsg.Header = headerMsg; headerMsg.Height = lastBlockHeight + 1; headerMsg.PreviousBlockHash = lastBlockHash; if (headerMsg.Height == 0) { minerAccountId = Consensus.BlockSetting.GenesisBlockReceiver; remark = Consensus.BlockSetting.GenesisBlockRemark; } BlockMsg prevBlockMsg = null; BlockMsg prevStepBlockMsg = null; if (blockEntity != null) { prevBlockMsg = blockEntity; } if (headerMsg.Height >= POC.DIFFIUCLTY_ADJUST_STEP) { var prevStepHeight = 0L; if (!GlobalParameters.IsTestnet && headerMsg.Height <= POC.DIFFICULTY_CALCULATE_LOGIC_ADJUST_HEIGHT) { prevStepHeight = headerMsg.Height - POC.DIFFIUCLTY_ADJUST_STEP - 1; } else { prevStepHeight = headerMsg.Height - POC.DIFFIUCLTY_ADJUST_STEP; } prevStepBlockMsg = blockDac.SelectByHeight(prevStepHeight); } var newBlockReward = POC.GetNewBlockReward(headerMsg.Height); headerMsg.Bits = POC.CalculateBaseTarget(headerMsg.Height, prevBlockMsg, prevStepBlockMsg); headerMsg.TotalTransaction = transactionMsgs.Count + 1; var coinbaseTxMsg = new TransactionMsg(); coinbaseTxMsg.Timestamp = Time.EpochTime; coinbaseTxMsg.Locktime = 0; var coinbaseInputMsg = new InputMsg(); coinbaseTxMsg.Inputs.Add(coinbaseInputMsg); coinbaseInputMsg.OutputIndex = 0; coinbaseInputMsg.OutputTransactionHash = Base16.Encode(HashHelper.EmptyHash()); coinbaseInputMsg.UnlockScript = Script.BuildMinerScript(minerName, remark); coinbaseInputMsg.Size = coinbaseInputMsg.UnlockScript.Length; var coinbaseOutputMsg = new OutputMsg(); coinbaseTxMsg.Outputs.Add(coinbaseOutputMsg); coinbaseOutputMsg.Amount = newBlockReward + totalFee; coinbaseOutputMsg.LockScript = Script.BuildLockScipt(minerAccountId); coinbaseOutputMsg.Size = coinbaseOutputMsg.LockScript.Length; coinbaseOutputMsg.Index = 0; if (newBlockReward < 0 || totalFee < 0 || coinbaseOutputMsg.Amount < 0) { LogHelper.Warn($"newBlockReward:{newBlockReward}"); LogHelper.Warn($"totalFee:{totalFee}"); LogHelper.Warn($"coinbaseOutputMsg.Amount:{coinbaseOutputMsg.Amount}"); throw new CommonException(ErrorCode.Engine.Transaction.Verify.COINBASE_OUTPUT_AMOUNT_ERROR); } coinbaseTxMsg.Hash = coinbaseTxMsg.GetHash(); newBlockMsg.Transactions.Insert(0, coinbaseTxMsg); foreach (var tx in transactionMsgs) { newBlockMsg.Transactions.Add(tx); } headerMsg.PayloadHash = newBlockMsg.GetPayloadHash(); LogHelper.Warn($"{headerMsg.Height}::{headerMsg.PayloadHash}"); LogHelper.Warn($"PayloadHash::{headerMsg.PayloadHash}"); LogHelper.Warn($"BlockSignature::{headerMsg.BlockSignature}"); LogHelper.Warn($"miner::{minerName}"); headerMsg.BlockSignature = Base16.Encode(HashHelper.EmptyHash()); headerMsg.BlockSigSize = headerMsg.BlockSignature.Length; headerMsg.TotalTransaction = newBlockMsg.Transactions.Count; return(newBlockMsg); }