| /** |
| * 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 org.apache.camel.component.jasypt; |
| |
| import java.util.Properties; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import static java.lang.String.format; |
| |
| import org.apache.camel.component.properties.DefaultPropertiesParser; |
| import org.apache.camel.util.ObjectHelper; |
| import org.jasypt.encryption.StringEncryptor; |
| import org.jasypt.encryption.pbe.StandardPBEStringEncryptor; |
| |
| /** |
| * A {@link org.apache.camel.component.properties.PropertiesParser} which is using |
| * <a href="http://www.jasypt.org/">Jasypt</a> to decrypt encrypted values. |
| * <p/> |
| * The parts of the values which should be decrpted must be enclosed in the prefix and suffix token. |
| */ |
| public class JasyptPropertiesParser extends DefaultPropertiesParser { |
| |
| public static final String JASYPT_PREFIX_TOKEN = "ENC("; |
| public static final String JASYPT_SUFFIX_TOKEN = ")"; |
| |
| private StringEncryptor encryptor; |
| private String password; |
| private String algorithm; |
| |
| private Pattern pattern; |
| |
| public JasyptPropertiesParser() { |
| String regex = JASYPT_PREFIX_TOKEN.replace("(", "\\(") + "(.+?)" + JASYPT_SUFFIX_TOKEN.replace(")", "\\)"); |
| pattern = Pattern.compile(regex); |
| } |
| |
| @Override |
| public String parseProperty(String key, String value, Properties properties) { |
| log.trace(format("Parsing property '%s=%s'", key, value)); |
| if (value != null) { |
| initEncryptor(); |
| Matcher matcher = pattern.matcher(value); |
| while (matcher.find()) { |
| log.trace(format("Decrypting part '%s'", matcher.group(0))); |
| String decrypted = encryptor.decrypt(matcher.group(1)); |
| value = value.replace(matcher.group(0), decrypted); |
| } |
| } |
| return value; |
| } |
| |
| private synchronized void initEncryptor() { |
| if (encryptor == null) { |
| ObjectHelper.notEmpty("password", password); |
| StandardPBEStringEncryptor pbeStringEncryptor = new StandardPBEStringEncryptor(); |
| pbeStringEncryptor.setPassword(password); |
| if (algorithm != null) { |
| pbeStringEncryptor.setAlgorithm(algorithm); |
| log.debug(format("Initialized encryptor using %s algorithm and provided password", algorithm)); |
| } else { |
| log.debug(format("Initialized encryptor using default algorithm and provided password")); |
| } |
| encryptor = pbeStringEncryptor; |
| } |
| } |
| |
| public void setEncryptor(StringEncryptor encryptor) { |
| this.encryptor = encryptor; |
| } |
| |
| public void setAlgorithm(String algorithm) { |
| this.algorithm = algorithm; |
| } |
| |
| public void setPassword(String password) { |
| // lookup password as either environment or JVM system property |
| if (password.startsWith("sysenv:")) { |
| password = System.getenv(ObjectHelper.after(password, "sysenv:")); |
| } |
| if (ObjectHelper.isNotEmpty(password) && password.startsWith("sys:")) { |
| password = System.getProperty(ObjectHelper.after(password, "sys:")); |
| } |
| this.password = password; |
| } |
| } |