| /** |
| * 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.hadoop.yarn.server.resourcemanager.security; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.security.UserGroupInformation; |
| import org.apache.hadoop.security.authorize.AccessControlList; |
| import org.apache.hadoop.yarn.api.records.ReservationACL; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.exceptions.YarnException; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * The {@link ReservationsACLsManager} is used to check a specified user's |
| * permissons to perform a reservation operation on the |
| * {@link ReservationACL}s are used to specify reservation operations. |
| */ |
| @SuppressWarnings("checkstyle:visibilitymodifier") |
| public abstract class ReservationsACLsManager { |
| private boolean isReservationACLsEnable; |
| Map<String, Map<ReservationACL, AccessControlList>> reservationAcls = |
| new HashMap<>(); |
| |
| public ReservationsACLsManager(Configuration conf) throws YarnException { |
| this.isReservationACLsEnable = conf.getBoolean( |
| YarnConfiguration.YARN_RESERVATION_ACL_ENABLE, |
| YarnConfiguration.DEFAULT_YARN_RESERVATION_ACL_ENABLE) |
| && conf.getBoolean(YarnConfiguration.YARN_ACL_ENABLE, |
| YarnConfiguration.DEFAULT_YARN_ACL_ENABLE); |
| } |
| |
| public boolean checkAccess(UserGroupInformation callerUGI, |
| ReservationACL acl, String queueName) { |
| if (!isReservationACLsEnable) { |
| return true; |
| } |
| |
| if (this.reservationAcls.containsKey(queueName)) { |
| Map<ReservationACL, AccessControlList> acls = this.reservationAcls.get( |
| queueName); |
| if (acls != null && acls.containsKey(acl)) { |
| return acls.get(acl).isUserAllowed(callerUGI); |
| } else { |
| // Give access if acl is undefined for queue. |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| } |