| /* |
| * 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.drill.exec.ssl; |
| |
| import java.util.function.BiFunction; |
| |
| /** |
| * Provides an implementation of credentials provider. |
| */ |
| abstract class SSLCredentialsProvider { |
| |
| /** |
| * Provides a concrete implementation of {@link SSLCredentialsProvider}. |
| * |
| * @param getPropertyMethod a reference to a method to retrieve credentials from config: |
| * <ul> |
| * <li>String parameter1 - property name</li> |
| * <li>String parameter2 - default value</li> |
| * <li>returns the property value or default value</li> |
| * </ul> |
| * @param getPasswordPropertyMethod the same as {@code getPropertyMethod} but used to |
| * retrieve sensible data, such as keystore password, |
| * using Hadoop's CredentialProvider API with fallback |
| * to standard means as is used for {@code getPropertyMethod} |
| * @param mode CLIENT or SERVER |
| * @return concrete implementation of SSLCredentialsProvider |
| */ |
| static SSLCredentialsProvider getSSLCredentialsProvider(BiFunction<String, String, String> getPropertyMethod, |
| BiFunction<String, String, String> getPasswordPropertyMethod, SSLConfig.Mode mode) { |
| return new SSLCredentialsProviderImpl(getPropertyMethod, getPasswordPropertyMethod); |
| } |
| |
| abstract String getTrustStoreType(String propertyName, String defaultValue); |
| |
| abstract String getTrustStoreLocation(String propertyName, String defaultValue); |
| |
| abstract String getTrustStorePassword(String propertyName, String defaultValue); |
| |
| abstract String getKeyStoreType(String propertyName, String defaultValue); |
| |
| abstract String getKeyStoreLocation(String propertyName, String defaultValue); |
| |
| abstract String getKeyStorePassword(String propertyName, String defaultValue); |
| |
| abstract String getKeyPassword(String propertyName, String defaultValue); |
| |
| |
| /** |
| * Default implementation of {@link SSLCredentialsProvider}. |
| * Delegates retrieving credentials to a class where it is used. |
| */ |
| private static class SSLCredentialsProviderImpl extends SSLCredentialsProvider { |
| |
| private final BiFunction<String, String, String> getPropertyMethod; |
| private final BiFunction<String, String, String> getPasswordPropertyMethod; |
| |
| private SSLCredentialsProviderImpl(BiFunction<String, String, String> getPropertyMethod, |
| BiFunction<String, String, String> getPasswordPropertyMethod) { |
| this.getPropertyMethod = getPropertyMethod; |
| this.getPasswordPropertyMethod = getPasswordPropertyMethod; |
| } |
| |
| @Override |
| String getTrustStoreType(String propertyName, String defaultValue) { |
| return getPropertyMethod.apply(propertyName, defaultValue); |
| } |
| |
| @Override |
| String getTrustStoreLocation(String propertyName, String defaultValue) { |
| return getPropertyMethod.apply(propertyName, defaultValue); |
| } |
| |
| @Override |
| String getTrustStorePassword(String propertyName, String defaultValue) { |
| return getPasswordPropertyMethod.apply(propertyName, defaultValue); |
| } |
| |
| @Override |
| String getKeyStoreType(String propertyName, String defaultValue) { |
| return getPropertyMethod.apply(propertyName, defaultValue); |
| } |
| |
| @Override |
| String getKeyStoreLocation(String propertyName, String defaultValue) { |
| return getPropertyMethod.apply(propertyName, defaultValue); |
| } |
| |
| @Override |
| String getKeyStorePassword(String propertyName, String defaultValue) { |
| return getPasswordPropertyMethod.apply(propertyName, defaultValue); |
| } |
| |
| @Override |
| String getKeyPassword(String propertyName, String defaultValue) { |
| return getPasswordPropertyMethod.apply(propertyName, defaultValue); |
| } |
| } |
| } |