| /* |
| * 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.hadoop.ozone.OzoneSecurityUtil; |
| import org.apache.hadoop.ozone.web.ozShell.Handler; |
| import org.apache.hadoop.ozone.web.utils.JsonUtils; |
| import org.apache.hadoop.security.token.Token; |
| import picocli.CommandLine; |
| import picocli.CommandLine.Command; |
| |
| import java.nio.charset.StandardCharsets; |
| import java.nio.file.Files; |
| import java.nio.file.Paths; |
| |
| /** |
| * Executes getDelegationToken api. |
| */ |
| @Command(name = "print", |
| description = "print a delegation token.") |
| public class PrintTokenHandler extends Handler { |
| |
| @CommandLine.Option(names = {"--token", "-t"}, |
| description = "file containing encoded token", |
| defaultValue = "/tmp/token.txt", |
| showDefaultValue = CommandLine.Help.Visibility.ALWAYS) |
| private String tokenFile; |
| |
| /** |
| * Executes the Client Calls. |
| */ |
| @Override |
| public Void call() throws Exception { |
| 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 (Files.notExists(Paths.get(tokenFile))) { |
| System.err.println("Error: Print token operation failed as token file: " |
| + tokenFile + " containing encoded token doesn't exist."); |
| return null; |
| } |
| |
| String encodedToken = new String(Files.readAllBytes(Paths.get(tokenFile)), |
| StandardCharsets.UTF_8); |
| Token token = new Token(); |
| token.decodeFromUrlString(encodedToken); |
| |
| System.out.printf("%s", JsonUtils.toJsonStringWithDefaultPrettyPrinter( |
| token.toString())); |
| return null; |
| } |
| } |