| // |
| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| // |
| |
| package com.cloud.utils.crypt; |
| |
| import java.util.Properties; |
| |
| import org.apache.log4j.Logger; |
| |
| import com.cloud.utils.db.DbProperties; |
| import com.cloud.utils.exception.CloudRuntimeException; |
| |
| public class DBEncryptionUtil { |
| public static final Logger s_logger = Logger.getLogger(DBEncryptionUtil.class); |
| private static CloudStackEncryptor s_encryptor = null; |
| |
| public static String encrypt(String plain) { |
| if (!EncryptionSecretKeyChecker.useEncryption() || (plain == null) || plain.isEmpty()) { |
| return plain; |
| } |
| if (s_encryptor == null) { |
| initialize(); |
| } |
| return s_encryptor.encrypt(plain); |
| } |
| |
| public static String decrypt(String encrypted) { |
| if (!EncryptionSecretKeyChecker.useEncryption() || (encrypted == null) || encrypted.isEmpty()) { |
| return encrypted; |
| } |
| if (s_encryptor == null) { |
| initialize(); |
| } |
| |
| return s_encryptor.decrypt(encrypted); |
| } |
| |
| protected static void initialize() { |
| s_logger.debug("Calling to initialize"); |
| final Properties dbProps = DbProperties.getDbProperties(); |
| |
| if (EncryptionSecretKeyChecker.useEncryption()) { |
| String dbSecretKey = dbProps.getProperty("db.cloud.encrypt.secret"); |
| if (dbSecretKey == null || dbSecretKey.isEmpty()) { |
| throw new CloudRuntimeException("Empty DB secret key in db.properties"); |
| } |
| String dbEncryptorVersion = dbProps.getProperty("db.cloud.encryptor.version"); |
| |
| s_encryptor = new CloudStackEncryptor(dbSecretKey, dbEncryptorVersion, DBEncryptionUtil.class); |
| } else { |
| throw new CloudRuntimeException("Trying to encrypt db values when encryption is not enabled"); |
| } |
| s_logger.debug("initialized"); |
| } |
| } |