Examples with NulsException io.nuls.kernel.exception.NulsException used on opensource projects

Example 81 with NulsException

use of io.nuls.kernel.exception.NulsException in project nuls by nuls-io.

the class RpcServerFilter method toResponse.

@Override
public Response toResponse(Exception e) {
    // System.out.println("---------------" + request.getRequestURI());
    Log.error("RequestURI is " + request.getRequestURI(), e);
    RpcClientResult result;
    if (e instanceof NulsException) {
        NulsException exception = (NulsException) e;
        result = new RpcClientResult(false, exception.getErrorCode());
    } else if (e instanceof NulsRuntimeException) {
        NulsRuntimeException exception = (NulsRuntimeException) e;
        result = new RpcClientResult(false, new ErrorData(exception.getCode(), exception.getMessage()));
    } else {
        result = Result.getFailed().setMsg(e.getMessage()).toRpcClientResult();
    }
    return Response.ok(result, MediaType.APPLICATION_JSON).build();
}

Example 82 with NulsException

use of io.nuls.kernel.exception.NulsException in project nuls by nuls-io.

the class ChainContainer method verifyRedPunish.

private boolean verifyRedPunish(RedPunishTransaction data) {
    RedPunishData punishData = data.getTxData();
    if (ConsensusConfig.getSeedNodeStringList().contains(AddressTool.getStringAddressByBytes(punishData.getAddress()))) {
        Log.warn("The seed node can not be punished!");
        return false;
    }
    HeaderSignValidator validator = NulsContext.getServiceBean(HeaderSignValidator.class);
    LedgerService ledgerService = NulsContext.getServiceBean(LedgerService.class);
    if (punishData.getReasonCode() == PunishReasonEnum.DOUBLE_SPEND.getCode()) {
        if (NulsContext.MAIN_NET_VERSION <= 1) {
            Log.warn("The red punish tx need higher version!");
            return false;
        }
        SmallBlock smallBlock = new SmallBlock();
        try {
            smallBlock.parse(punishData.getEvidence(), 0);
        } catch (NulsException e) {
            Log.error(e);
            return false;
        }
        BlockHeader header = smallBlock.getHeader();
        if (header.getTime() != data.getTime()) {
            return false;
        }
        ValidateResult result = validator.validate(header);
        if (result.isFailed()) {
            Log.warn(result.getMsg());
            return false;
        }
        List<NulsDigestData> txHashList = smallBlock.getTxHashList();
        if (!header.getMerkleHash().equals(NulsDigestData.calcMerkleDigestData(txHashList))) {
            Log.warn(TransactionErrorCode.TX_DATA_VALIDATION_ERROR.getMsg());
            return false;
        }
        List<Transaction> txList = smallBlock.getSubTxList();
        if (null == txList || txList.size() < 2) {
            Log.warn(TransactionErrorCode.TX_DATA_VALIDATION_ERROR.getMsg());
            return false;
        }
        result = ledgerService.verifyDoubleSpend(txList);
        if (result.isSuccess()) {
            Log.warn(PocConsensusErrorCode.TRANSACTIONS_NEVER_DOUBLE_SPEND.getMsg());
            return false;
        }
    } else if (punishData.getReasonCode() == PunishReasonEnum.BIFURCATION.getCode()) {
        if (NulsContext.MAIN_NET_VERSION <= 1) {
            Log.warn("The red punish tx need higher version!");
            return false;
        }
        NulsByteBuffer byteBuffer = new NulsByteBuffer(punishData.getEvidence());
        // 轮次
        long[] roundIndex = new long[NulsContext.REDPUNISH_BIFURCATION];
        for (int i = 0; i < NulsContext.REDPUNISH_BIFURCATION && !byteBuffer.isFinished(); i++) {
            BlockHeader header1 = null;
            BlockHeader header2 = null;
            try {
                header1 = byteBuffer.readNulsData(new BlockHeader());
                header2 = byteBuffer.readNulsData(new BlockHeader());
            } catch (NulsException e) {
                Log.error(e);
            }
            if (null == header1 || null == header2) {
                Log.warn(KernelErrorCode.DATA_NOT_FOUND.getMsg());
                return false;
            }
            if (header1.getHeight() != header2.getHeight()) {
                Log.warn(TransactionErrorCode.TX_DATA_VALIDATION_ERROR.getMsg());
                return false;
            }
            if (i == NulsContext.REDPUNISH_BIFURCATION - 1 && (header1.getTime() + header2.getTime()) / 2 != data.getTime()) {
                return false;
            }
            ValidateResult result = validator.validate(header1);
            if (result.isFailed()) {
                Log.warn(TransactionErrorCode.TX_DATA_VALIDATION_ERROR.getMsg());
                return false;
            }
            result = validator.validate(header2);
            if (result.isFailed()) {
                Log.warn(TransactionErrorCode.TX_DATA_VALIDATION_ERROR.getMsg());
                return false;
            }
            if (!Arrays.equals(header1.getBlockSignature().getPublicKey(), header2.getBlockSignature().getPublicKey())) {
                Log.warn(TransactionErrorCode.SIGNATURE_ERROR.getMsg());
                return false;
            }
            BlockExtendsData blockExtendsData = new BlockExtendsData(header1.getExtend());
            roundIndex[i] = blockExtendsData.getRoundIndex();
        }
        // 验证轮次是否连续
        boolean rs = true;
        for (int i = 0; i < roundIndex.length; i++) {
            if (i < roundIndex.length - 2 && roundIndex[i + 1] - roundIndex[i] != 1) {
                rs = false;
                break;
            }
        }
        if (!rs) {
            Log.warn(PocConsensusErrorCode.RED_CARD_VERIFICATION_FAILED.getMsg());
            return false;
        }
    } else if (punishData.getReasonCode() != PunishReasonEnum.TOO_MUCH_YELLOW_PUNISH.getCode()) {
        Log.warn(PocConsensusErrorCode.RED_CARD_VERIFICATION_FAILED.getMsg());
        return false;
    }
    try {
        return verifyCoinData(data);
    } catch (IOException e) {
        Log.error(e);
        return false;
    }
}

Example 83 with NulsException

use of io.nuls.kernel.exception.NulsException in project nuls by nuls-io.

the class ContractTxServiceImpl method validateContractCreateTx.

/**
 * 验证创建生成智能合约的交易
 *
 * @param gasLimit     最大gas消耗
 * @param price        执行合约单价
 * @param contractCode 合约代码
 * @param args         参数列表
 * @return
 */
@Override
public Result validateContractCreateTx(Long gasLimit, Long price, byte[] contractCode, String[][] args) {
    try {
        AssertUtil.canNotEmpty(contractCode, "the contractCode can not be empty");
        Na value = Na.ZERO;
        if (!ContractUtil.checkPrice(price.longValue())) {
            return Result.getFailed(ContractErrorCode.CONTRACT_MINIMUM_PRICE);
        }
        Account senderAccount = AccountTool.createAccount();
        // 生成一个地址作为智能合约地址
        Address contractAddress = AccountTool.createContractAddress();
        byte[] contractAddressBytes = contractAddress.getAddressBytes();
        byte[] senderBytes = senderAccount.getAddress().getAddressBytes();
        BlockHeader blockHeader = NulsContext.getInstance().getBestBlock().getHeader();
        // 当前区块高度
        long blockHeight = blockHeader.getHeight();
        // 当前区块状态根
        byte[] prevStateRoot = ContractUtil.getStateRoot(blockHeader);
        AssertUtil.canNotEmpty(prevStateRoot, "All features of the smart contract are locked.");
        // 执行VM验证合法性
        ProgramCreate programCreate = new ProgramCreate();
        programCreate.setContractAddress(contractAddressBytes);
        programCreate.setSender(senderBytes);
        programCreate.setValue(BigInteger.valueOf(value.getValue()));
        programCreate.setPrice(price.longValue());
        programCreate.setGasLimit(gasLimit.longValue());
        programCreate.setNumber(blockHeight);
        programCreate.setContractCode(contractCode);
        if (args != null) {
            programCreate.setArgs(args);
        }
        ProgramExecutor track = programExecutor.begin(prevStateRoot);
        // 验证合约时跳过Gas验证
        long realGasLimit = programCreate.getGasLimit();
        programCreate.setGasLimit(MAX_GASLIMIT);
        ProgramResult programResult = track.create(programCreate);
        // 执行结果失败时，交易直接返回错误，不上链，不消耗Gas，
        if (!programResult.isSuccess()) {
            Log.error(programResult.getStackTrace());
            Result result = Result.getFailed(ContractErrorCode.DATA_ERROR);
            result.setMsg(ContractUtil.simplifyErrorMsg(programResult.getErrorMessage()));
            result = checkVmResultAndReturn(programResult.getErrorMessage(), result);
            return result;
        } else {
            // 其他合法性都通过后，再验证Gas
            track = programExecutor.begin(prevStateRoot);
            programCreate.setGasLimit(realGasLimit);
            programResult = track.create(programCreate);
            if (!programResult.isSuccess()) {
                Log.error(programResult.getStackTrace());
                Result result = Result.getFailed(ContractErrorCode.DATA_ERROR);
                result.setMsg(ContractUtil.simplifyErrorMsg(programResult.getErrorMessage()));
                return result;
            }
        }
        return Result.getSuccess();
    } catch (NulsException e) {
        Log.error(e);
        return Result.getFailed(e.getErrorCode());
    }
}

Example 84 with NulsException

use of io.nuls.kernel.exception.NulsException in project nuls by nuls-io.

the class ContractTxServiceImpl method contractDeleteTx.

/**
 * 创建删除智能合约的交易
 *
 * @param sender          交易创建者
 * @param contractAddress 合约地址
 * @param password        账户密码
 * @param remark          备注
 * @return
 */
@Override
public Result contractDeleteTx(String sender, String contractAddress, String password, String remark) {
    try {
        AssertUtil.canNotEmpty(sender, "the sender address can not be empty");
        AssertUtil.canNotEmpty(contractAddress, "the contractAddress can not be empty");
        byte[] contractAddressBytes = AddressTool.getAddress(contractAddress);
        Result<ContractAddressInfoPo> contractAddressInfoPoResult = contractAddressStorageService.getContractAddressInfo(contractAddressBytes);
        if (contractAddressInfoPoResult.isFailed()) {
            return contractAddressInfoPoResult;
        }
        ContractAddressInfoPo contractAddressInfoPo = contractAddressInfoPoResult.getData();
        if (contractAddressInfoPo == null) {
            return Result.getFailed(ContractErrorCode.CONTRACT_ADDRESS_NOT_EXIST);
        }
        BlockHeader blockHeader = NulsContext.getInstance().getBestBlock().getHeader();
        // 当前区块状态根
        byte[] stateRoot = ContractUtil.getStateRoot(blockHeader);
        // 获取合约当前状态
        ProgramStatus status = vmHelper.getContractStatus(stateRoot, contractAddressBytes);
        boolean isTerminatedContract = ContractUtil.isTerminatedContract(status.ordinal());
        if (isTerminatedContract) {
            return Result.getFailed(ContractErrorCode.CONTRACT_DELETED);
        }
        byte[] senderBytes = AddressTool.getAddress(sender);
        if (!ArraysTool.arrayEquals(senderBytes, contractAddressInfoPo.getSender())) {
            return Result.getFailed(ContractErrorCode.CONTRACT_DELETE_CREATER);
        }
        Result<ContractBalance> result = contractBalanceManager.getBalance(contractAddressBytes);
        ContractBalance balance = (ContractBalance) result.getData();
        if (balance == null) {
            return result;
        }
        Na totalBalance = balance.getBalance();
        if (totalBalance.compareTo(Na.ZERO) != 0) {
            return Result.getFailed(ContractErrorCode.CONTRACT_DELETE_BALANCE);
        }
        Result<Account> accountResult = accountService.getAccount(sender);
        if (accountResult.isFailed()) {
            return accountResult;
        }
        Account account = accountResult.getData();
        // 验证账户密码
        if (account.isEncrypted() && account.isLocked()) {
            AssertUtil.canNotEmpty(password, "the password can not be empty");
            if (!account.validatePassword(password)) {
                return Result.getFailed(AccountErrorCode.PASSWORD_IS_WRONG);
            }
        }
        if (!account.isOk()) {
            return Result.getFailed(AccountErrorCode.IMPORTING_ACCOUNT);
        }
        DeleteContractTransaction tx = new DeleteContractTransaction();
        if (StringUtils.isNotBlank(remark)) {
            try {
                tx.setRemark(remark.getBytes(NulsConfig.DEFAULT_ENCODING));
            } catch (UnsupportedEncodingException e) {
                Log.error(e);
                throw new RuntimeException(e);
            }
        }
        tx.setTime(TimeService.currentTimeMillis());
        // 组装txData
        DeleteContractData deleteContractData = new DeleteContractData();
        deleteContractData.setContractAddress(contractAddressBytes);
        deleteContractData.setSender(senderBytes);
        tx.setTxData(deleteContractData);
        // 计算CoinData
        /*
             * 没有Gas消耗，在终止智能合约里
             */
        CoinData coinData = new CoinData();
        // 总花费 终止智能合约的交易手续费按普通交易计算手续费
        CoinDataResult coinDataResult = accountLedgerService.getCoinData(senderBytes, Na.ZERO, tx.size() + coinData.size(), TransactionFeeCalculator.MIN_PRICE_PRE_1024_BYTES);
        if (!coinDataResult.isEnough()) {
            return Result.getFailed(TransactionErrorCode.INSUFFICIENT_BALANCE);
        }
        coinData.setFrom(coinDataResult.getCoinList());
        // 找零的UTXO
        if (coinDataResult.getChange() != null) {
            coinData.getTo().add(coinDataResult.getChange());
        }
        tx.setCoinData(coinData);
        tx.setHash(NulsDigestData.calcDigestData(tx.serializeForHash()));
        // 生成签名
        List<ECKey> signEckeys = new ArrayList<>();
        List<ECKey> scriptEckeys = new ArrayList<>();
        ECKey eckey = account.getEcKey(password);
        // 如果最后一位为1则表示该交易包含普通签名
        if ((coinDataResult.getSignType() & 0x01) == 0x01) {
            signEckeys.add(eckey);
        }
        // 如果倒数第二位位为1则表示该交易包含脚本签名
        if ((coinDataResult.getSignType() & 0x02) == 0x02) {
            scriptEckeys.add(eckey);
        }
        SignatureUtil.createTransactionSignture(tx, scriptEckeys, signEckeys);
        // 保存删除合约的交易到本地账本
        Result saveResult = accountLedgerService.verifyAndSaveUnconfirmedTransaction(tx);
        if (saveResult.isFailed()) {
            if (KernelErrorCode.DATA_SIZE_ERROR.getCode().equals(saveResult.getErrorCode().getCode())) {
                // 重新算一次交易(不超出最大交易数据大小下)的最大金额
                Result rs = accountLedgerService.getMaxAmountOfOnce(senderBytes, tx, TransactionFeeCalculator.MIN_PRICE_PRE_1024_BYTES);
                if (rs.isSuccess()) {
                    Na maxAmount = (Na) rs.getData();
                    rs = Result.getFailed(KernelErrorCode.DATA_SIZE_ERROR_EXTEND);
                    rs.setMsg(rs.getMsg() + maxAmount.toDouble());
                }
                return rs;
            }
            return saveResult;
        }
        // 广播交易
        Result sendResult = transactionService.broadcastTx(tx);
        if (sendResult.isFailed()) {
            // 失败则回滚
            accountLedgerService.deleteTransaction(tx);
            return sendResult;
        }
        return Result.getSuccess().setData(tx.getHash().getDigestHex());
    } catch (IOException e) {
        Log.error(e);
        Result result = Result.getFailed(ContractErrorCode.CONTRACT_TX_CREATE_ERROR);
        result.setMsg(e.getMessage());
        return result;
    } catch (NulsException e) {
        Log.error(e);
        return Result.getFailed(e.getErrorCode());
    } catch (Exception e) {
        Log.error(e);
        Result result = Result.getFailed(ContractErrorCode.CONTRACT_TX_CREATE_ERROR);
        result.setMsg(e.getMessage());
        return result;
    }
}

Example 85 with NulsException

use of io.nuls.kernel.exception.NulsException in project nuls by nuls-io.

the class ContractTxServiceImpl method contractPreCreateTx.

/**
 * 预创建生成智能合约的交易
 * 用于测试合约是否能正确创建
 *
 * @param sender       交易创建者
 * @param gasLimit     最大gas消耗
 * @param price        执行合约单价
 * @param contractCode 合约代码
 * @param args         参数列表
 * @param password     账户密码
 * @param remark       备注
 * @return
 */
@Override
public Result contractPreCreateTx(String sender, Long gasLimit, Long price, byte[] contractCode, String[][] args, String password, String remark) {
    try {
        AssertUtil.canNotEmpty(sender, "the sender address can not be empty");
        AssertUtil.canNotEmpty(contractCode, "the contractCode can not be empty");
        Na value = Na.ZERO;
        Result<Account> accountResult = accountService.getAccount(sender);
        if (accountResult.isFailed()) {
            return accountResult;
        }
        // 生成一个地址作为智能合约地址
        Address contractAddress = AccountTool.createContractAddress();
        byte[] contractAddressBytes = contractAddress.getAddressBytes();
        byte[] senderBytes = AddressTool.getAddress(sender);
        CreateContractTransaction tx = new CreateContractTransaction();
        if (StringUtils.isNotBlank(remark)) {
            try {
                tx.setRemark(remark.getBytes(NulsConfig.DEFAULT_ENCODING));
            } catch (UnsupportedEncodingException e) {
                Log.error(e);
                throw new RuntimeException(e);
            }
        }
        tx.setTime(TimeService.currentTimeMillis());
        // 计算CoinData
        /*
             * 智能合约计算手续费以消耗的Gas*Price为根据，然而创建交易时并不执行智能合约，
             * 所以此时交易的CoinData是不固定的，比实际要多，
             * 打包时执行智能合约，真实的手续费已算出，然而tx的手续费已扣除，
             * 多扣除的费用会以CoinBase交易还给Sender
             */
        CoinData coinData = new CoinData();
        // 向智能合约账户转账
        if (!Na.ZERO.equals(value)) {
            Coin toCoin = new Coin(contractAddressBytes, value);
            coinData.getTo().add(toCoin);
        }
        BlockHeader blockHeader = NulsContext.getInstance().getBestBlock().getHeader();
        // 当前区块高度
        long blockHeight = blockHeader.getHeight();
        // 当前区块状态根
        byte[] prevStateRoot = ContractUtil.getStateRoot(blockHeader);
        AssertUtil.canNotEmpty(prevStateRoot, "All features of the smart contract are locked.");
        // 执行VM验证合法性
        ProgramCreate programCreate = new ProgramCreate();
        programCreate.setContractAddress(contractAddressBytes);
        programCreate.setSender(senderBytes);
        programCreate.setValue(BigInteger.valueOf(value.getValue()));
        programCreate.setPrice(price.longValue());
        programCreate.setGasLimit(gasLimit.longValue());
        programCreate.setNumber(blockHeight);
        programCreate.setContractCode(contractCode);
        if (args != null) {
            programCreate.setArgs(args);
        }
        ProgramExecutor track = programExecutor.begin(prevStateRoot);
        // 验证合约时跳过Gas验证
        long realGasLimit = programCreate.getGasLimit();
        programCreate.setGasLimit(MAX_GASLIMIT);
        ProgramResult programResult = track.create(programCreate);
        // 执行结果失败时，交易直接返回错误，不上链，不消耗Gas，
        if (!programResult.isSuccess()) {
            Log.error(programResult.getStackTrace());
            Result result = Result.getFailed(ContractErrorCode.DATA_ERROR);
            result.setMsg(ContractUtil.simplifyErrorMsg(programResult.getErrorMessage()));
            result = checkVmResultAndReturn(programResult.getErrorMessage(), result);
            return result;
        } else {
            // 其他合法性都通过后，再验证Gas
            track = programExecutor.begin(prevStateRoot);
            programCreate.setGasLimit(realGasLimit);
            programResult = track.create(programCreate);
            if (!programResult.isSuccess()) {
                Log.error(programResult.getStackTrace());
                Result result = Result.getFailed(ContractErrorCode.DATA_ERROR);
                result.setMsg(ContractUtil.simplifyErrorMsg(programResult.getErrorMessage()));
                return result;
            }
        }
        long gasUsed = gasLimit.longValue();
        Na imputedNa = Na.valueOf(LongUtils.mul(gasUsed, price));
        // 总花费
        Na totalNa = imputedNa.add(value);
        // 组装txData
        CreateContractData createContractData = new CreateContractData();
        createContractData.setSender(senderBytes);
        createContractData.setContractAddress(contractAddressBytes);
        createContractData.setValue(value.getValue());
        createContractData.setGasLimit(gasLimit);
        createContractData.setPrice(price);
        createContractData.setCodeLen(contractCode.length);
        createContractData.setCode(contractCode);
        if (args != null) {
            createContractData.setArgsCount((byte) args.length);
            if (args.length > 0) {
                createContractData.setArgs(args);
            }
        }
        tx.setTxData(createContractData);
        CoinDataResult coinDataResult = accountLedgerService.getCoinData(senderBytes, totalNa, tx.size(), TransactionFeeCalculator.MIN_PRICE_PRE_1024_BYTES);
        if (!coinDataResult.isEnough()) {
            return Result.getFailed(TransactionErrorCode.INSUFFICIENT_BALANCE);
        }
        return Result.getSuccess();
    } catch (NulsException e) {
        Log.error(e);
        return Result.getFailed(e.getErrorCode());
    } catch (Exception e) {
        Log.error(e);
        Result result = Result.getFailed(ContractErrorCode.CONTRACT_TX_CREATE_ERROR);
        result.setMsg(e.getMessage());
        return result;
    }
}