| /* |
| * 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.pig.test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.File; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.util.Iterator; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.security.Credentials; |
| import org.apache.hadoop.security.UserGroupInformation; |
| import org.apache.pig.EvalFunc; |
| import org.apache.pig.PigServer; |
| import org.apache.pig.builtin.PigStorage; |
| import org.apache.pig.data.Tuple; |
| import org.apache.pig.impl.PigContext; |
| import org.apache.pig.test.utils.GenPhyOp; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| @RunWith(JUnit4.class) |
| public class TestCredentials { |
| private static PigServer pigServer; |
| private static PigContext pc; |
| private static MiniGenericCluster cluster; |
| private static String INPUT_FILE = "input.txt"; |
| private static String OUTPUT_DIR = "output"; |
| private static final Text ALIAS = new Text ("testKey"); |
| private static final String SECRET = "dummySecret"; |
| |
| public static class CredentialsEvalFunc extends EvalFunc<String>{ |
| @Override |
| public String exec(Tuple input) throws IOException { |
| String val = new String(UserGroupInformation.getCurrentUser().getCredentials().getSecretKey(ALIAS)); |
| if(!SECRET.equals(val)) { |
| throw new IOException("Invalid secret"); |
| } |
| return val; |
| } |
| |
| @Override |
| public void addCredentials(Credentials credentials, Configuration conf) { |
| Credentials creds = new Credentials(); |
| creds.addSecretKey(ALIAS, SECRET.getBytes()); |
| credentials.addAll(creds); |
| } |
| } |
| |
| public static class CredPigStorage extends PigStorage { |
| @Override |
| public void addCredentials(Credentials credentials, Configuration conf) { |
| Credentials creds = new Credentials(); |
| creds.addSecretKey(ALIAS, SECRET.getBytes()); |
| credentials.addAll(creds); |
| } |
| |
| @Override |
| public Tuple getNext() throws IOException { |
| Tuple ret = super.getNext(); |
| if(ret == null) { |
| return ret; |
| } |
| byte[] b = UserGroupInformation.getCurrentUser().getCredentials().getSecretKey(ALIAS); |
| if(b != null) { |
| ret.append(new String(b)); |
| } |
| return ret; |
| } |
| |
| @Override |
| public void putNext(Tuple tuple) throws IOException { |
| if(tuple == null) { |
| return; |
| } |
| byte[] b = UserGroupInformation.getCurrentUser().getCredentials().getSecretKey(ALIAS); |
| if(b != null) { |
| tuple.append(new String(b)); |
| } |
| super.putNext(tuple); |
| } |
| } |
| |
| @BeforeClass |
| public static void setup() throws IOException { |
| cluster = MiniGenericCluster.buildCluster(); |
| pc = new PigContext(cluster.getExecType(), cluster.getProperties()); |
| pc.connect(); |
| pigServer = new PigServer(cluster.getExecType(), cluster.getProperties()); |
| GenPhyOp.setPc(pc); |
| createInput(); |
| } |
| |
| @AfterClass |
| public static void tearDown() throws Exception { |
| deleteInput(); |
| if(pigServer!=null) { |
| pigServer.shutdown(); |
| } |
| cluster.shutDown(); |
| } |
| |
| @Test |
| public void testCredentialsEvalFunc() throws IOException { |
| Tuple expectedResult = (Tuple)Util.getPigConstant("('" + SECRET + "')"); |
| pigServer.registerQuery("a = load '"+ INPUT_FILE +"' as (i:chararray);"); |
| pigServer.registerQuery("d = foreach a generate " + CredentialsEvalFunc.class.getName() + "(i);"); |
| Iterator<Tuple> it = pigServer.openIterator("d"); |
| assertTrue(it.hasNext()); |
| assertEquals(expectedResult, it.next()); |
| assertFalse(it.hasNext()); |
| } |
| |
| @Test |
| public void testCredentialsLoadFunc() throws Exception { |
| Tuple expectedResult = (Tuple)Util.getPigConstant("('" + SECRET + "')"); |
| pigServer.registerQuery("a = load '" + INPUT_FILE + "' using " + CredPigStorage.class.getName() |
| + "() as (text:chararray, secstr:chararray);"); |
| pigServer.registerQuery("d = foreach a generate secstr;"); |
| Iterator<Tuple> it = pigServer.openIterator("d"); |
| assertTrue(it.hasNext()); |
| assertEquals(expectedResult, it.next()); |
| assertFalse(it.hasNext()); |
| } |
| |
| @Test |
| public void testCredentialsStoreFunc() throws Exception { |
| Tuple expectedResult = (Tuple)Util.getPigConstant("('" + SECRET + "')"); |
| pigServer.registerQuery("a = load '" + INPUT_FILE + "' using PigStorage() as (text:chararray);"); |
| pigServer.registerQuery("store a into '" + OUTPUT_DIR +"' using " + CredPigStorage.class.getName() + "();"); |
| pigServer.registerQuery("c = load '" + OUTPUT_DIR + "' using PigStorage() as (text:chararray, secstr:chararray);"); |
| pigServer.registerQuery("d = foreach c generate secstr;"); |
| Iterator<Tuple> it = pigServer.openIterator("d"); |
| assertTrue(it.hasNext()); |
| assertEquals(expectedResult, it.next()); |
| assertFalse(it.hasNext()); |
| } |
| |
| private static void createInput() throws IOException { |
| PrintWriter w = new PrintWriter(new FileWriter(INPUT_FILE)); |
| w.println("dumb"); |
| w.close(); |
| Util.copyFromLocalToCluster(cluster, INPUT_FILE, INPUT_FILE); |
| } |
| |
| private static void deleteInput() throws IOException { |
| new File(INPUT_FILE).delete(); |
| FileUtils.deleteDirectory(new File(OUTPUT_DIR)); |
| Util.deleteFile(cluster, INPUT_FILE); |
| Util.deleteFile(cluster, OUTPUT_DIR); |
| } |
| |
| } |