Examples with NulsByteBuffer io.nuls.kernel.utils.NulsByteBuffer used on opensource projects

Example 11 with NulsByteBuffer

use of io.nuls.kernel.utils.NulsByteBuffer in project nuls by nuls-io.

the class AccountLedgerServiceImpl method transferP2SH.

/**
 * A transfers NULS to B   多签交易
 *
 * @param fromAddr address of A
 * @param signAddr address of B
 * @param values   NULS amount
 * @param password password of A
 * @param remark   remarks of transaction
 * @param price    Unit price of fee
 * @param pubkeys  公钥列表
 * @param m        至少需要签名验证通过
 * @return Result
 */
@Override
public Result transferP2SH(byte[] fromAddr, byte[] signAddr, List<MultipleAddressTransferModel> outputs, Na values, String password, String remark, Na price, List<String> pubkeys, int m, String txdata) {
    try {
        Result<Account> accountResult = accountService.getAccount(signAddr);
        if (accountResult.isFailed()) {
            return accountResult;
        }
        Account account = accountResult.getData();
        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);
        }
        TransferTransaction tx = new TransferTransaction();
        TransactionSignature transactionSignature = new TransactionSignature();
        List<P2PHKSignature> p2PHKSignatures = new ArrayList<>();
        List<Script> scripts = new ArrayList<>();
        // 如果txdata为空则表示当前请求为多签发起者调用，需要创建交易
        if (txdata == null || txdata.trim().length() == 0) {
            if (StringUtils.isNotBlank(remark)) {
                try {
                    tx.setRemark(remark.getBytes(NulsConfig.DEFAULT_ENCODING));
                } catch (UnsupportedEncodingException e) {
                    Log.error(e);
                }
            }
            Script redeemScript = ScriptBuilder.createNulsRedeemScript(m, pubkeys);
            tx.setTime(TimeService.currentTimeMillis());
            CoinData coinData = new CoinData();
            for (MultipleAddressTransferModel to : outputs) {
                // 如果为多签地址
                Coin toCoin = null;
                if (to.getAddress()[2] == NulsContext.P2SH_ADDRESS_TYPE) {
                    Script scriptPubkey = SignatureUtil.createOutputScript(to.getAddress());
                    toCoin = new Coin(scriptPubkey.getProgram(), Na.valueOf(to.getAmount()));
                } else {
                    toCoin = new Coin(to.getAddress(), Na.valueOf(to.getAmount()));
                }
                coinData.getTo().add(toCoin);
            }
            if (price == null) {
                price = TransactionFeeCalculator.MIN_PRICE_PRE_1024_BYTES;
            }
            // 交易签名的长度为m*单个签名长度+赎回脚本长度
            int scriptSignLenth = redeemScript.getProgram().length + m * 72;
            CoinDataResult coinDataResult = getMutilCoinData(fromAddr, values, tx.size() + coinData.size() + scriptSignLenth, price);
            if (!coinDataResult.isEnough()) {
                return Result.getFailed(AccountLedgerErrorCode.INSUFFICIENT_BALANCE);
            }
            coinData.setFrom(coinDataResult.getCoinList());
            if (coinDataResult.getChange() != null) {
                coinData.getTo().add(coinDataResult.getChange());
            }
            tx.setCoinData(coinData);
            tx.setHash(NulsDigestData.calcDigestData(tx.serializeForHash()));
            // 将赎回脚本先存储在签名脚本中
            scripts.add(redeemScript);
            transactionSignature.setScripts(scripts);
        } else // 如果txdata不为空表示多签交易已经创建好了，将交易反序列化出来
        {
            byte[] txByte = Hex.decode(txdata);
            tx.parse(new NulsByteBuffer(txByte));
            transactionSignature.parse(new NulsByteBuffer(tx.getTransactionSignature()));
            p2PHKSignatures = transactionSignature.getP2PHKSignatures();
            scripts = transactionSignature.getScripts();
        }
        // 使用签名账户对交易进行签名
        P2PHKSignature p2PHKSignature = new P2PHKSignature();
        ECKey eckey = account.getEcKey(password);
        p2PHKSignature.setPublicKey(eckey.getPubKey());
        // 用当前交易的hash和账户的私钥账户
        p2PHKSignature.setSignData(accountService.signDigest(tx.getHash().getDigestBytes(), eckey));
        p2PHKSignatures.add(p2PHKSignature);
        // 当已签名数等于M则自动广播该交易
        if (p2PHKSignatures.size() == SignatureUtil.getM(scripts.get(0))) {
            // 将交易中的签名数据P2PHKSignatures按规则排序
            Collections.sort(p2PHKSignatures, P2PHKSignature.PUBKEY_COMPARATOR);
            // 将排序后的P2PHKSignatures的签名数据取出和赎回脚本结合生成解锁脚本
            List<byte[]> signatures = new ArrayList<>();
            for (P2PHKSignature p2PHKSignatureTemp : p2PHKSignatures) {
                signatures.add(p2PHKSignatureTemp.getSignData().getSignBytes());
            }
            transactionSignature.setP2PHKSignatures(null);
            Script scriptSign = ScriptBuilder.createNulsP2SHMultiSigInputScript(signatures, scripts.get(0));
            transactionSignature.getScripts().clear();
            transactionSignature.getScripts().add(scriptSign);
            tx.setTransactionSignature(transactionSignature.serialize());
            // 保存未确认交易到本地账户
            Result saveResult = 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 = getMaxAmountOfOnce(fromAddr, tx, price);
                    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;
            }
            Result sendResult = transactionService.broadcastTx(tx);
            if (sendResult.isFailed()) {
                this.deleteTransaction(tx);
                return sendResult;
            }
            return Result.getSuccess().setData(tx.getHash().getDigestHex());
        } else // 如果签名数还没达到，则返回交易
        {
            transactionSignature.setP2PHKSignatures(p2PHKSignatures);
            tx.setTransactionSignature(transactionSignature.serialize());
            return Result.getSuccess().setData(Hex.encode(tx.serialize()));
        }
    } catch (IOException e) {
        Log.error(e);
        return Result.getFailed(KernelErrorCode.IO_ERROR);
    } catch (NulsException e) {
        Log.error(e);
        return Result.getFailed(e.getErrorCode());
    }
}

Example 12 with NulsByteBuffer

use of io.nuls.kernel.utils.NulsByteBuffer in project nuls by nuls-io.

the class AccountLedgerServiceImpl method signMultiTransaction.

/**
 * A transfers NULS to B   多签交易
 *
 * @param signAddr 签名地址
 * @param password password of A
 * @param txdata   需要签名的数据
 * @return Result
 */
@Override
public Result signMultiTransaction(String signAddr, String password, String txdata) {
    try {
        Result<Account> accountResult = accountService.getAccount(signAddr);
        if (accountResult.isFailed()) {
            return accountResult;
        }
        Account account = accountResult.getData();
        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);
            }
        }
        byte[] txByte = Hex.decode(txdata);
        Transaction tx = TransactionManager.getInstance(new NulsByteBuffer(txByte));
        TransactionSignature transactionSignature = new TransactionSignature();
        transactionSignature.parse(new NulsByteBuffer(tx.getTransactionSignature()));
        // 验证签名地址账户是否属于多签账户
        List<byte[]> pubkeys = SignatureUtil.getPublicKeyList(transactionSignature.getScripts().get(0));
        if (pubkeys == null || pubkeys.size() == 0 || !AddressTool.validSignAddress(pubkeys, account.getPubKey())) {
            return Result.getFailed(AccountErrorCode.SIGN_ADDRESS_NOT_MATCH);
        }
        return txMultiProcess(tx, transactionSignature, account, password);
    } catch (NulsException e) {
        Log.error(e);
        return Result.getFailed(e.getErrorCode());
    } catch (Exception e) {
        Log.error(e);
        return Result.getFailed(AccountErrorCode.ACCOUNT_NOT_EXIST);
    }
}

Example 13 with NulsByteBuffer

use of io.nuls.kernel.utils.NulsByteBuffer in project nuls by nuls-io.

the class CreateP2shTransactionForm method validAddress.

public static boolean validAddress(String address) {
    if (StringUtils.isBlank(address)) {
        return false;
    }
    byte[] bytes;
    try {
        bytes = Base58.decode(address);
        if (bytes.length != Address.ADDRESS_LENGTH + 1) {
            return false;
        }
    } catch (NulsException e) {
        return false;
    } catch (Exception e) {
        return false;
    }
    NulsByteBuffer byteBuffer = new NulsByteBuffer(bytes);
    short chainId;
    byte type;
    try {
        chainId = byteBuffer.readShort();
        type = byteBuffer.readByte();
    } catch (NulsException e) {
        Log.error(e);
        return false;
    }
    if (NulsContext.getInstance().getDefaultChainId() != chainId) {
        return false;
    }
    if (NulsContext.MAIN_NET_VERSION <= 1 || NulsContext.CONTRACT_ADDRESS_TYPE == type) {
        return false;
    }
    if (NulsContext.DEFAULT_ADDRESS_TYPE != type && NulsContext.P2SH_ADDRESS_TYPE != type) {
        return false;
    }
    try {
        AddressTool.checkXOR(bytes);
    } catch (Exception e) {
        return false;
    }
    return true;
}

Example 14 with NulsByteBuffer

use of io.nuls.kernel.utils.NulsByteBuffer in project nuls by nuls-io.

the class BaseNulsData method parse.

@Override
public final void parse(byte[] bytes, int cursor) throws NulsException {
    if (bytes == null || bytes.length == 0 || ((bytes.length == 4) && Arrays.equals(NulsConstant.PLACE_HOLDER, bytes))) {
        return;
    }
    NulsByteBuffer byteBuffer = new NulsByteBuffer(bytes);
    byteBuffer.setCursor(cursor);
    this.parse(byteBuffer);
}

Example 15 with NulsByteBuffer

use of io.nuls.kernel.utils.NulsByteBuffer 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;
    }
}