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

Example 11 with VarInt

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

the class UtxoLedgerServiceImpl method verifyCoinData.

/**
 * 此txList是待打包的块中的交易，所以toList是下一步的UTXO，应该校验它
 * coinData的交易和txList同处一个块中，txList中的to可能是coinData的from，
 * 也就是可能存在，在同一个块中，下一笔输入就是上一笔的输出，所以需要校验它
 * bestHeight is used when switch chain.
 *
 * @return ValidateResult
 */
@Override
public ValidateResult verifyCoinData(Transaction transaction, Map<String, Coin> temporaryToMap, Set<String> temporaryFromSet, Long bestHeight) {
    if (transaction == null || transaction.getCoinData() == null) {
        return ValidateResult.getFailedResult(CLASS_NAME, LedgerErrorCode.NULL_PARAMETER);
    }
    try {
        /*
            校验开始
             */
        CoinData coinData = transaction.getCoinData();
        List<Coin> froms = coinData.getFrom();
        int fromSize = froms.size();
        TransactionSignature transactionSignature = new TransactionSignature();
        // 交易签名反序列化
        if (transaction.needVerifySignature() && fromSize > 0) {
            try {
                transactionSignature.parse(transaction.getTransactionSignature(), 0);
            } catch (NulsException e) {
                return ValidateResult.getFailedResult(CLASS_NAME, LedgerErrorCode.LEDGER_P2PKH_SCRIPT_ERROR);
            }
        }
        // 保存Set用于验证自身双花
        if (temporaryFromSet == null) {
            temporaryFromSet = new HashSet<>();
        }
        Na fromTotal = Na.ZERO;
        byte[] fromBytes;
        // 保存在数据库中或者txList中的utxo数据
        Coin fromOfFromCoin = null;
        byte[] fromAddressBytes = null;
        /**
         * 存放真实地址（如果为脚本验证的情况fromAddressBytes存的是脚本信息）
         */
        byte[] realAddressBytes = null;
        for (int i = 0; i < froms.size(); i++) {
            Coin from = froms.get(i);
            fromBytes = from.getOwner();
            // 验证是否可花费, 校验的coinData的fromUTXO，检查数据库中是否存在此UTXO
            fromOfFromCoin = utxoLedgerUtxoStorageService.getUtxo(fromBytes);
            // 检查txList中是否存在此UTXO
            if (temporaryToMap != null && fromOfFromCoin == null) {
                fromOfFromCoin = temporaryToMap.get(asString(fromBytes));
            }
            if (null == fromOfFromCoin) {
                // 如果既不存在于txList的to中(如果txList不为空)，又不存在于数据库中，那么这是一笔问题数据，进一步检查是否存在这笔交易，交易有就是双花，没有就是孤儿交易，则返回失败
                if (null != utxoLedgerTransactionStorageService.getTxBytes(LedgerUtil.getTxHashBytes(fromBytes))) {
                    return ValidateResult.getFailedResult(CLASS_NAME, TransactionErrorCode.TRANSACTION_REPEATED);
                } else {
                    return ValidateResult.getFailedResult(CLASS_NAME, LedgerErrorCode.ORPHAN_TX);
                }
            } else {
                fromAddressBytes = fromOfFromCoin.getOwner();
                realAddressBytes = fromOfFromCoin.getAddress();
                // pierre add 非合约转账(从合约转出)交易，验证fromAdress是否是合约地址，如果是，则返回失败，非合约转账(从合约转出)交易不能转出合约地址资产
                if (transaction.getType() != ContractConstant.TX_TYPE_CONTRACT_TRANSFER) {
                    boolean isContractAddress = contractService.isContractAddress(realAddressBytes);
                    if (isContractAddress) {
                        return ValidateResult.getFailedResult(CLASS_NAME, LedgerErrorCode.DATA_ERROR);
                    }
                }
                // 验证地址中的公钥hash160和交易中的公钥hash160是否相等，不相等则说明这笔utxo不属于交易发出者
                boolean signtureValidFlag = false;
                if (transaction.needVerifySignature()) {
                    if (transactionSignature != null) {
                        if (fromAddressBytes != null && transactionSignature.getScripts() != null && transactionSignature.getScripts().size() > 0) {
                            if (fromAddressBytes.length != Address.ADDRESS_LENGTH) {
                                Script scriptPubkey = new Script(fromAddressBytes);
                                for (Script scriptSig : transactionSignature.getScripts()) {
                                    signtureValidFlag = scriptSig.correctlyNulsSpends(transaction, 0, scriptPubkey);
                                    if (signtureValidFlag) {
                                        break;
                                    }
                                }
                            } else {
                                for (Script scriptSig : transactionSignature.getScripts()) {
                                    Script redeemScript = new Script(scriptSig.getChunks().get(scriptSig.getChunks().size() - 1).data);
                                    Address address = new Address(NulsContext.getInstance().getDefaultChainId(), NulsContext.P2SH_ADDRESS_TYPE, SerializeUtils.sha256hash160(redeemScript.getProgram()));
                                    Script publicScript = SignatureUtil.createOutputScript(address.getAddressBytes());
                                    signtureValidFlag = scriptSig.correctlyNulsSpends(transaction, 0, publicScript);
                                    if (signtureValidFlag) {
                                        break;
                                    }
                                }
                            }
                        } else {
                            if (transactionSignature.getP2PHKSignatures() != null && transactionSignature.getP2PHKSignatures().size() != 0) {
                                for (P2PHKSignature signature : transactionSignature.getP2PHKSignatures()) {
                                    signtureValidFlag = AddressTool.checkPublicKeyHash(realAddressBytes, signature.getSignerHash160());
                                    if (signtureValidFlag) {
                                        break;
                                    }
                                }
                            }
                        }
                    }
                    if (!signtureValidFlag) {
                        Log.warn("public key hash160 check error.");
                        return ValidateResult.getFailedResult(CLASS_NAME, LedgerErrorCode.INVALID_INPUT);
                    }
                }
                if (java.util.Arrays.equals(realAddressBytes, NulsConstant.BLACK_HOLE_ADDRESS) || java.util.Arrays.equals(realAddressBytes, NulsConstant.BLACK_HOLE_ADDRESS_TEST_NET)) {
                    return ValidateResult.getFailedResult(CLASS_NAME, KernelErrorCode.ADDRESS_IS_BLOCK_HOLE);
                }
                if (NulsContext.getInstance().getDefaultChainId() != SerializeUtils.bytes2Short(realAddressBytes)) {
                    return ValidateResult.getFailedResult(CLASS_NAME, KernelErrorCode.ADDRESS_IS_NOT_BELONGS_TO_CHAIN);
                }
            }
            // 验证非解锁类型的交易及解锁类型的交易
            if (!transaction.isUnlockTx()) {
                // 验证非解锁类型的交易，验证是否可用，检查是否还在锁定时间内
                if (bestHeight == null) {
                    if (!fromOfFromCoin.usable()) {
                        return ValidateResult.getFailedResult(CLASS_NAME, LedgerErrorCode.UTXO_UNUSABLE);
                    }
                } else {
                    if (!fromOfFromCoin.usable(bestHeight)) {
                        return ValidateResult.getFailedResult(CLASS_NAME, LedgerErrorCode.UTXO_UNUSABLE);
                    }
                }
            } else {
                // 验证解锁类型的交易
                if (fromOfFromCoin.getLockTime() != -1) {
                    return ValidateResult.getFailedResult(CLASS_NAME, LedgerErrorCode.UTXO_STATUS_CHANGE);
                }
            }
            // 验证与待确认交易列表中是否有双花，既是待校验交易的fromUtxo是否和txList中的fromUtxo重复，有重复则是双花
            if (temporaryFromSet != null && !temporaryFromSet.add(asString(fromBytes))) {
                if (i > 0) {
                    for (int x = 0; x < i; x++) {
                        Coin theFrom = froms.get(i);
                        temporaryFromSet.remove(asString(theFrom.getOwner()));
                    }
                }
                return ValidateResult.getFailedResult(CLASS_NAME, TransactionErrorCode.TRANSACTION_REPEATED);
            }
            // 验证from的锁定时间和金额
            if (!(fromOfFromCoin.getNa().equals(from.getNa()) && fromOfFromCoin.getLockTime() == from.getLockTime())) {
                return ValidateResult.getFailedResult(CLASS_NAME, LedgerErrorCode.DATA_ERROR);
            }
            fromTotal = fromTotal.add(fromOfFromCoin.getNa());
            from.setFrom(fromOfFromCoin);
        }
        List<Coin> tos = coinData.getTo();
        Na toTotal = Na.ZERO;
        byte[] txBytes = transaction.getHash().serialize();
        for (int i = 0; i < tos.size(); i++) {
            Coin to = tos.get(i);
            // 如果不是调用合约的类型，并且合约地址作为nuls接收者，则返回错误，非合约交易不能转入nuls(CoinBase交易不过此验证)
            if (ContractConstant.TX_TYPE_CALL_CONTRACT != transaction.getType() && AddressTool.validContractAddress(to.getOwner())) {
                Log.error("Ledger verify error: {}.", ContractErrorCode.NON_CONTRACTUAL_TRANSACTION_NO_TRANSFER.getEnMsg());
                return ValidateResult.getFailedResult(CLASS_NAME, ContractErrorCode.NON_CONTRACTUAL_TRANSACTION_NO_TRANSFER);
            }
            toTotal = toTotal.add(to.getNa());
            if (temporaryToMap != null) {
                temporaryToMap.put(asString(ArraysTool.concatenate(txBytes, new VarInt(i).encode())), to);
            }
        }
        // 验证输出不能大于输入
        if (fromTotal.compareTo(toTotal) < 0) {
            return ValidateResult.getFailedResult(CLASS_NAME, LedgerErrorCode.INVALID_AMOUNT);
        }
    } catch (Exception e) {
        Log.error(e);
        return ValidateResult.getFailedResult(CLASS_NAME, KernelErrorCode.SYS_UNKOWN_EXCEPTION);
    }
    return ValidateResult.getSuccessResult();
}

Example 12 with VarInt

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

the class UtxoLedgerServiceImpl method saveCoinData.

private Result saveCoinData(Transaction tx) throws IOException {
    CoinData coinData = tx.getCoinData();
    // TestLog-
    if (coinData != null) {
        BatchOperation batch = utxoLedgerUtxoStorageService.createWriteBatch();
        // 删除utxo已花费 - from
        List<Coin> froms = coinData.getFrom();
        for (Coin from : froms) {
            // TestLog+
            // Coin preFrom = utxoLedgerUtxoStorageService.getUtxo(from.());
            // if (preFrom != null) {
            // Log.info("花费：height: +" + tx.getBlockHeight() + ", “+txHash-" + tx.getHash() + ", " + Hex.encode(from.()));
            // }
            // Log.info("delete utxo:" + Hex.encode(from.()));
            // TestLog-
            batch.delete(from.getOwner());
        }
        // 保存utxo - to
        byte[] txHashBytes = tx.getHash().serialize();
        List<Coin> tos = coinData.getTo();
        for (int i = 0, length = tos.size(); i < length; i++) {
            try {
                byte[] owner = Arrays.concatenate(txHashBytes, new VarInt(i).encode());
                // Log.info("129 save utxo:::" + Hex.encode(owner));
                batch.put(owner, tos.get(i).serialize());
            } catch (IOException e) {
                Log.error(e);
                return Result.getFailed(KernelErrorCode.IO_ERROR);
            }
        }
        // 执行批量
        Result batchResult = batch.executeBatch();
        if (batchResult.isFailed()) {
            return batchResult;
        }
    }
    return Result.getSuccess();
}

Example 13 with VarInt

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

the class UtxoLedgerServiceImpl method unlockTxCoinData.

@Override
public Result unlockTxCoinData(Transaction tx, long newockTime) throws NulsException {
    if (tx == null || tx.getCoinData() == null) {
        return ValidateResult.getFailedResult(CLASS_NAME, LedgerErrorCode.NULL_PARAMETER);
    }
    try {
        CoinData coinData = tx.getCoinData();
        List<Coin> tos = coinData.getTo();
        boolean isExistLockUtxo = false;
        Coin needUnLockUtxo = null;
        int needUnLockUtxoIndex = 0;
        for (Coin to : tos) {
            if (to.getLockTime() == -1) {
                isExistLockUtxo = true;
                needUnLockUtxo = to;
                break;
            }
            needUnLockUtxoIndex++;
        }
        if (!isExistLockUtxo) {
            return ValidateResult.getFailedResult(CLASS_NAME, LedgerErrorCode.UTXO_STATUS_CHANGE);
        }
        byte[] txHashBytes = txHashBytes = tx.getHash().serialize();
        Coin needUnLockUtxoNew = new Coin(needUnLockUtxo.getOwner(), needUnLockUtxo.getNa(), newockTime);
        needUnLockUtxoNew.setFrom(needUnLockUtxo.getFrom());
        Result result = utxoLedgerUtxoStorageService.saveUtxo(Arrays.concatenate(txHashBytes, new VarInt(needUnLockUtxoIndex).encode()), needUnLockUtxoNew);
        if (result.isFailed()) {
            Result rollbackResult = rollbackUnlockTxCoinData(tx);
            if (rollbackResult.isFailed()) {
                throw new NulsException(rollbackResult.getErrorCode());
            }
        }
        return result;
    } catch (IOException e) {
        Result rollbackResult = rollbackUnlockTxCoinData(tx);
        if (rollbackResult.isFailed()) {
            throw new NulsException(rollbackResult.getErrorCode());
        }
        Log.error(e);
        return Result.getFailed(KernelErrorCode.IO_ERROR);
    }
}

Example 14 with VarInt

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

the class TransactionResource method getTxByHash.

@GET
@Path("/hash/{hash}")
@Produces(MediaType.APPLICATION_JSON)
@ApiOperation(value = "根据hash查询交易")
@ApiResponses(value = { @ApiResponse(code = 200, message = "success", response = TransactionDto.class) })
public RpcClientResult getTxByHash(@ApiParam(name = "hash", value = "交易hash", required = true) @PathParam("hash") String hash) {
    if (StringUtils.isBlank(hash)) {
        return Result.getFailed(LedgerErrorCode.NULL_PARAMETER).toRpcClientResult();
    }
    if (!NulsDigestData.validHash(hash)) {
        return Result.getFailed(LedgerErrorCode.PARAMETER_ERROR).toRpcClientResult();
    }
    Result result = null;
    try {
        Transaction tx = ledgerService.getTx(NulsDigestData.fromDigestHex(hash));
        if (tx == null) {
            result = Result.getFailed(TransactionErrorCode.TX_NOT_EXIST);
        } else {
            tx.setStatus(TxStatusEnum.CONFIRMED);
            TransactionDto txDto = null;
            CoinData coinData = tx.getCoinData();
            String fromAddress = null;
            if (tx.getTransactionSignature() != null) {
                TransactionSignature signature = new TransactionSignature();
                signature.parse(new NulsByteBuffer(tx.getTransactionSignature()));
                if (signature.getP2PHKSignatures() != null && signature.getP2PHKSignatures().size() == 1) {
                    byte[] addressBytes = AddressTool.getAddress(signature.getP2PHKSignatures().get(0).getPublicKey());
                    fromAddress = AddressTool.getStringAddressByBytes(addressBytes);
                }
            }
            if (coinData != null) {
                // 组装from数据
                List<Coin> froms = coinData.getFrom();
                if (froms != null && froms.size() > 0) {
                    byte[] fromHash, owner;
                    int fromIndex;
                    NulsDigestData fromHashObj;
                    Transaction fromTx;
                    Coin fromUtxo;
                    for (Coin from : froms) {
                        if (fromAddress != null) {
                            from.setFromAddress(fromAddress);
                        } else {
                            owner = from.getOwner();
                            // owner拆分出txHash和index
                            fromHash = LedgerUtil.getTxHashBytes(owner);
                            fromIndex = LedgerUtil.getIndex(owner);
                            // 查询from UTXO
                            fromHashObj = new NulsDigestData();
                            fromHashObj.parse(fromHash, 0);
                            fromTx = ledgerService.getTx(fromHashObj);
                            fromUtxo = fromTx.getCoinData().getTo().get(fromIndex);
                            from.setFrom(fromUtxo);
                        }
                    }
                }
                txDto = new TransactionDto(tx);
                List<OutputDto> outputDtoList = new ArrayList<>();
                // 组装to数据
                List<Coin> tos = coinData.getTo();
                if (tos != null && tos.size() > 0) {
                    byte[] txHashBytes = tx.getHash().serialize();
                    String txHash = hash;
                    OutputDto outputDto = null;
                    Coin to, temp;
                    long bestHeight = NulsContext.getInstance().getBestHeight();
                    long currentTime = TimeService.currentTimeMillis();
                    long lockTime;
                    for (int i = 0, length = tos.size(); i < length; i++) {
                        to = tos.get(i);
                        outputDto = new OutputDto(to);
                        outputDto.setTxHash(txHash);
                        outputDto.setIndex(i);
                        temp = utxoLedgerUtxoStorageService.getUtxo(Arrays.concatenate(txHashBytes, new VarInt(i).encode()));
                        if (temp == null) {
                            // 已花费
                            outputDto.setStatus(3);
                        } else {
                            lockTime = temp.getLockTime();
                            if (lockTime < 0) {
                                // 共识锁定
                                outputDto.setStatus(2);
                            } else if (lockTime == 0) {
                                // 正常未花费
                                outputDto.setStatus(0);
                            } else if (lockTime > NulsConstant.BlOCKHEIGHT_TIME_DIVIDE) {
                                // 判定是否时间高度锁定
                                if (lockTime > currentTime) {
                                    // 时间高度锁定
                                    outputDto.setStatus(1);
                                } else {
                                    // 正常未花费
                                    outputDto.setStatus(0);
                                }
                            } else {
                                // 判定是否区块高度锁定
                                if (lockTime > bestHeight) {
                                    // 区块高度锁定
                                    outputDto.setStatus(1);
                                } else {
                                    // 正常未花费
                                    outputDto.setStatus(0);
                                }
                            }
                        }
                        outputDtoList.add(outputDto);
                    }
                }
                txDto.setOutputs(outputDtoList);
                // 计算交易实际发生的金额
                calTransactionValue(txDto);
            }
            result = Result.getSuccess();
            result.setData(txDto);
        }
    } catch (NulsRuntimeException e) {
        Log.error(e);
        result = Result.getFailed(e.getErrorCode());
    } catch (Exception e) {
        Log.error(e);
        result = Result.getFailed(LedgerErrorCode.SYS_UNKOWN_EXCEPTION);
    }
    return result.toRpcClientResult();
}

Example 15 with VarInt

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

the class LocalUtxoServiceImpl method unlockCoinData.

@Override
public Result<List<byte[]>> unlockCoinData(Transaction tx, long newLockTime) {
    List<byte[]> addresses = new ArrayList<>();
    CoinData coinData = tx.getCoinData();
    if (coinData != null) {
        List<Coin> tos = coinData.getTo();
        Coin to;
        for (int i = 0, length = tos.size(); i < length; i++) {
            to = tos.get(i);
            if (to.getLockTime() == -1L) {
                Coin needUnLockUtxoNew = new Coin(to.getOwner(), to.getNa(), newLockTime);
                needUnLockUtxoNew.setFrom(to.getFrom());
                try {
                    byte[] outKey = ArraysTool.concatenate(tx.getHash().serialize(), new VarInt(i).encode());
                    saveUTXO(outKey, needUnLockUtxoNew.serialize());
                    addresses.add(to.getAddress());
                } catch (IOException e) {
                    throw new NulsRuntimeException(e);
                }
                // todo , think about weather to add a transaction history
                break;
            }
        }
    }
    return Result.getSuccess().setData(addresses);
}