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

Example 16 with NulsByteBuffer

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

the class AliasService method setMutilAlias.

/**
 * 多签账户设置别名
 * Initiate a transaction to set alias.
 *
 * @param addr      Address of account
 * @param password  password of account
 * @param aliasName the alias to set
 * @return txhash
 */
public Result<String> setMutilAlias(String addr, String signAddr, String aliasName, String password, List<String> pubKeys, int m, String txdata) {
    // 签名账户
    Account account = accountService.getAccount(signAddr).getData();
    if (null == account) {
        return Result.getFailed(AccountErrorCode.ACCOUNT_NOT_EXIST);
    }
    if (account.isEncrypted() && account.isLocked()) {
        if (!account.validatePassword(password)) {
            return Result.getFailed(AccountErrorCode.PASSWORD_IS_WRONG);
        }
    }
    try {
        AliasTransaction tx = new AliasTransaction();
        TransactionSignature transactionSignature = new TransactionSignature();
        List<P2PHKSignature> p2PHKSignatures = new ArrayList<>();
        List<Script> scripts = new ArrayList<>();
        byte[] addressBytes = AddressTool.getAddress(addr);
        // 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.validAlias(aliasName)) {
                return Result.getFailed(AccountErrorCode.ALIAS_FORMAT_WRONG);
            }
            if (!isAliasUsable(aliasName)) {
                return Result.getFailed(AccountErrorCode.ALIAS_EXIST);
            }
            // 创建一笔设置别名的交易
            tx = new AliasTransaction();
            Script redeemScript = ScriptBuilder.createNulsRedeemScript(m, pubKeys);
            tx.setTime(TimeService.currentTimeMillis());
            Alias alias = new Alias(addressBytes, aliasName);
            tx.setTxData(alias);
            // 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 = accountLedgerService.getMutilCoinData(addressBytes, AccountConstant.ALIAS_NA, tx.size() + scriptSignLenth, TransactionFeeCalculator.OTHER_PRICE_PRE_1024_BYTES);
            if (!coinDataResult.isEnough()) {
                return Result.getFailed(AccountErrorCode.INSUFFICIENT_BALANCE);
            }
            CoinData coinData = new CoinData();
            coinData.setFrom(coinDataResult.getCoinList());
            Coin change = coinDataResult.getChange();
            if (null != change) {
                // 创建toList
                List<Coin> toList = new ArrayList<>();
                toList.add(change);
                coinData.setTo(toList);
            }
            Coin coin = new Coin(NulsConstant.BLACK_HOLE_ADDRESS, Na.parseNuls(1), 0);
            coinData.addTo(coin);
            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);
        Result result = txMutilProcessing(tx, p2PHKSignatures, scripts, transactionSignature, addressBytes);
        return result;
    } catch (Exception e) {
        Log.error(e);
        return Result.getFailed(KernelErrorCode.SYS_UNKOWN_EXCEPTION);
    }
}

Example 17 with NulsByteBuffer

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

the class MessageProcessor method analysisMessage.

private List<BaseMessage> analysisMessage(ByteBuf buffer) throws NulsException {
    List<BaseMessage> messageList;
    try {
        messageList = new ArrayList<>();
        byte[] bytes = new byte[buffer.readableBytes()];
        buffer.readBytes(bytes);
        NulsByteBuffer byteBuffer = new NulsByteBuffer(bytes);
        while (!byteBuffer.isFinished()) {
            MessageHeader header = byteBuffer.readNulsData(new MessageHeader());
            byteBuffer.setCursor(byteBuffer.getCursor() - header.size());
            BaseMessage message = getMessageBusService().getMessageInstance(header.getModuleId(), header.getMsgType()).getData();
            message = byteBuffer.readNulsData(message);
            messageList.add(message);
        }
    } catch (Exception e) {
        throw new NulsException(KernelErrorCode.DATA_ERROR, e);
    } finally {
        buffer.clear();
    }
    return messageList;
}