| /* |
| * 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.ozone.web.ozShell.token; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.ozone.OzoneSecurityUtil; |
| import org.apache.hadoop.ozone.client.OzoneClient; |
| import org.apache.hadoop.ozone.web.ozShell.Handler; |
| import org.apache.hadoop.ozone.web.ozShell.OzoneAddress; |
| import org.apache.hadoop.ozone.web.utils.JsonUtils; |
| import org.apache.hadoop.security.UserGroupInformation; |
| import org.apache.hadoop.security.token.Token; |
| import picocli.CommandLine; |
| import picocli.CommandLine.Command; |
| |
| import java.util.Objects; |
| |
| /** |
| * Executes getDelegationToken api. |
| */ |
| @Command(name = "get", |
| description = "get a delegation token.") |
| public class GetTokenHandler extends Handler { |
| |
| |
| |
| @CommandLine.Option(names = {"--renewer", "-r"}, |
| description = "Token renewer", |
| showDefaultValue = CommandLine.Help.Visibility.ALWAYS) |
| private String renewer; |
| |
| /** |
| * Executes the Client Calls. |
| */ |
| @Override |
| public Void call() throws Exception { |
| OzoneAddress address = new OzoneAddress(); |
| try (OzoneClient client = |
| address.createClient(createOzoneConfiguration())) { |
| |
| if (!OzoneSecurityUtil.isSecurityEnabled(createOzoneConfiguration())) { |
| System.err.println("Error:Token operations work only when security is" + |
| " " + "enabled. To enable security set ozone.security.enabled to " + |
| "true."); |
| return null; |
| } |
| |
| if (StringUtils.isEmpty(renewer)) { |
| renewer = UserGroupInformation.getCurrentUser().getShortUserName(); |
| } |
| Token token = |
| client.getObjectStore().getDelegationToken(new Text(renewer)); |
| if (Objects.isNull(token)) { |
| System.err.println("Error: Get delegation token operation failed. " + |
| "Check" + " OzoneManager logs for more details."); |
| return null; |
| } |
| |
| System.out.printf("%s", JsonUtils.toJsonStringWithDefaultPrettyPrinter( |
| token.encodeToUrlString())); |
| } |
| return null; |
| } |
| } |