| /* |
| * 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.ambari.infra.security; |
| |
| import org.apache.commons.collections.CollectionUtils; |
| import org.apache.hadoop.security.authentication.server.AuthenticationToken; |
| import org.apache.hadoop.security.authentication.util.KerberosName; |
| |
| import java.security.Principal; |
| import java.util.Map; |
| import java.util.Set; |
| |
| |
| /** |
| * Strategy class to get roles with the principal name (in a specific format e.g.: 'name@DOMAIN') |
| * in case of KerberosPlugin is used for authentication |
| */ |
| public class InfraUserRolesLookupStrategy { |
| |
| public Set<String> getUserRolesFromPrincipal(Map<String, Set<String>> usersVsRoles, Principal principal) { |
| if (principal instanceof AuthenticationToken) { |
| AuthenticationToken authenticationToken = (AuthenticationToken) principal; |
| KerberosName kerberosName = new KerberosName(authenticationToken.getName()); |
| Set<String> rolesResult = usersVsRoles.get(String.format("%s@%s", kerberosName.getServiceName(), kerberosName.getRealm())); |
| if (CollectionUtils.isEmpty(rolesResult)) { |
| rolesResult = usersVsRoles.get(principal.getName()); |
| } |
| return rolesResult; |
| } else { |
| return usersVsRoles.get(principal.getName()); |
| } |
| } |
| } |