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

Example 16 with NulsException

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

the class SyncVersionRunner method syncNewestVersionInfo.

private void syncNewestVersionInfo() throws NulsException, UnsupportedEncodingException {
    String jsonStr = null;
    try {
        jsonStr = new String(HttpDownloadUtils.download(this.versionJsonUrl), NulsConfig.DEFAULT_ENCODING);
    } catch (IOException e) {
        throw new NulsException(KernelErrorCode.DOWNLOAD_VERSION_FAILD);
    }
    Map<String, Object> map = null;
    try {
        map = JSONUtils.json2map(jsonStr);
    } catch (Exception e) {
        throw new NulsException(KernelErrorCode.PARSE_JSON_FAILD);
    }
    String version = (String) map.get("version");
    String versionFileHash = (String) map.get("versionFileHash");
    String signature = (String) map.get("signature");
    boolean result = VersionConstant.EC_KEY.verify(Sha256Hash.hash((version + "&" + versionFileHash).getBytes("UTF-8")), Hex.decode(signature));
    if (!result) {
        return;
    }
    NEWEST_VERSION = version;
    VERSION_FILE_HASH = versionFileHash;
    INFORMATION = (String) map.get("information");
}

Example 17 with NulsException

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

the class ForkChainProcess method doProcess.

public boolean doProcess() throws IOException, NulsException {
    if (ConsensusStatusContext.getConsensusStatus().ordinal() < ConsensusStatus.RUNNING.ordinal()) {
        NulsContext.WALLET_STATUS = NulsConstant.SYNCHING;
        return false;
    }
    Lockers.CHAIN_LOCK.lock();
    try {
        printChainStatusLog();
        ChainContainer masterChain = chainManager.getMasterChain();
        if (null == masterChain) {
            return false;
        }
        // Monitor the status of the orphan chain, if it is available, join the verification chain
        // 监控孤立链的状态，如果有可连接的，则加入验证链里面
        monitorOrphanChains();
        BlockHeader masterBestHeader = masterChain.getBestBlock().getHeader();
        // 寻找可切换的链
        ChainContainer wantToChangeChain = findWantToChangeChain(masterBestHeader);
        if (wantToChangeChain != null) {
            NulsContext.WALLET_STATUS = NulsConstant.ROLLBACK;
            // 验证新的链，结合当前最新的链，获取到分叉节点时的状态
            ChainContainer resultChain = chainManager.getMasterChain().getBeforeTheForkChain(wantToChangeChain);
            List<Object[]> verifyResultList = new ArrayList<>();
            for (Block forkBlock : wantToChangeChain.getChain().getAllBlockList()) {
                Result success = resultChain.verifyAndAddBlock(forkBlock, true, false);
                if (success.isFailed()) {
                    resultChain = null;
                    break;
                } else {
                    verifyResultList.add((Object[]) success.getData());
                }
            }
            if (resultChain == null) {
                ChainLog.debug("verify the fork chain fail {} remove it", wantToChangeChain.getChain().getId());
                chainManager.getChains().remove(wantToChangeChain);
            } else {
                // Verify pass, try to switch chain
                // 验证通过，尝试切换链
                boolean success = changeChain(resultChain, wantToChangeChain, verifyResultList);
                if (success) {
                    chainManager.getChains().remove(wantToChangeChain);
                    /**
                     ********************************************************************************************************
                     */
                    try {
                        Log.info("");
                        Log.info("****************************************************");
                        Log.info("完成 切换连成功，获取当前bestblock, height:{}，- {}", chainManager.getBestBlock().getHeader().getHeight(), chainManager.getBestBlock().getHeader().getHash());
                        Log.info("****************************************************");
                        Log.info("");
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                /**
                 ********************************************************************************************************
                 */
                } else {
                    Log.info("切换链失败了---------------------------------");
                }
                ChainLog.debug("verify the fork chain {} success, change master chain result : {} , new master chain is {} : {} - {}", wantToChangeChain.getChain().getId(), success, chainManager.getBestBlock().getHeader().getHeight(), chainManager.getBestBlock().getHeader().getHash());
            }
        }
        clearExpiredChain();
    } finally {
        NulsContext.WALLET_STATUS = NulsConstant.RUNNING;
        Lockers.CHAIN_LOCK.unlock();
    }
    return true;
}

Example 18 with NulsException

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

the class UtxoLedgerServiceImpl method rollbackUnlockTxCoinData.

@Override
public Result rollbackUnlockTxCoinData(Transaction tx) 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 = tx.getHash().serialize();
        Result result = utxoLedgerUtxoStorageService.saveUtxo(Arrays.concatenate(txHashBytes, new VarInt(needUnLockUtxoIndex).encode()), needUnLockUtxo);
        if (result.isFailed()) {
            throw new NulsException(result.getErrorCode());
        }
        return result;
    } catch (IOException e) {
        Log.error(e);
        throw new NulsException(KernelErrorCode.IO_ERROR);
    }
}

Example 19 with NulsException

use of io.nuls.kernel.exception.NulsException 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 20 with NulsException

use of io.nuls.kernel.exception.NulsException 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);
    }
}