| /** |
| * 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.storm.security.auth.authorizer; |
| |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import org.apache.storm.security.auth.IAuthorizer; |
| import org.apache.storm.security.auth.ReqContext; |
| |
| /** |
| * An authorization implementation that simply checks a whitelist of users that are allowed to use the cluster. |
| */ |
| public class SimpleWhitelistAuthorizer implements IAuthorizer { |
| public static final String WHITELIST_USERS_CONF = "storm.auth.simple-white-list.users"; |
| protected Set<String> users; |
| |
| /** |
| * Invoked once immediately after construction. |
| * |
| * @param conf Storm configuration |
| */ |
| @Override |
| public void prepare(Map<String, Object> conf) { |
| users = new HashSet<>(); |
| if (conf.containsKey(WHITELIST_USERS_CONF)) { |
| users.addAll((Collection<String>) conf.get(WHITELIST_USERS_CONF)); |
| } |
| } |
| |
| /** |
| * `permit()` method is invoked for each incoming Thrift request. |
| * |
| * @param context request context includes info about |
| * @param operation operation name |
| * @param topoConf configuration of targeted topology |
| * @return true if the request is authorized, false if reject |
| */ |
| @Override |
| public boolean permit(ReqContext context, String operation, Map<String, Object> topoConf) { |
| return context.principal() != null ? users.contains(context.principal().getName()) : false; |
| } |
| } |