| /** |
| * Licensed 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. See accompanying LICENSE file. |
| */ |
| package org.apache.hadoop.security.authentication.util; |
| |
| import java.util.Random; |
| |
| import org.apache.log4j.Level; |
| import org.apache.log4j.LogManager; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import static org.mockito.Mockito.spy; |
| import static org.mockito.Mockito.timeout; |
| import static org.mockito.Mockito.verify; |
| |
| public class TestRandomSignerSecretProvider { |
| |
| // rollover every 250 msec |
| private final int timeout = 500; |
| private final long rolloverFrequency = timeout / 2; |
| |
| { |
| LogManager.getLogger( |
| RolloverSignerSecretProvider.LOG.getName()).setLevel(Level.DEBUG); |
| } |
| |
| @Test |
| public void testGetAndRollSecrets() throws Exception { |
| // Use the same seed and a "plain" Random so we can predict the RNG |
| long seed = System.currentTimeMillis(); |
| Random rand = new Random(seed); |
| byte[] secret1 = generateNewSecret(rand); |
| byte[] secret2 = generateNewSecret(rand); |
| byte[] secret3 = generateNewSecret(rand); |
| MockRandomSignerSecretProvider secretProvider = |
| spy(new MockRandomSignerSecretProvider(seed)); |
| try { |
| secretProvider.init(null, null, rolloverFrequency); |
| |
| byte[] currentSecret = secretProvider.getCurrentSecret(); |
| byte[][] allSecrets = secretProvider.getAllSecrets(); |
| Assert.assertArrayEquals(secret1, currentSecret); |
| Assert.assertEquals(2, allSecrets.length); |
| Assert.assertArrayEquals(secret1, allSecrets[0]); |
| Assert.assertNull(allSecrets[1]); |
| verify(secretProvider, timeout(timeout).atLeastOnce()).rollSecret(); |
| secretProvider.realRollSecret(); |
| |
| currentSecret = secretProvider.getCurrentSecret(); |
| allSecrets = secretProvider.getAllSecrets(); |
| Assert.assertArrayEquals(secret2, currentSecret); |
| Assert.assertEquals(2, allSecrets.length); |
| Assert.assertArrayEquals(secret2, allSecrets[0]); |
| Assert.assertArrayEquals(secret1, allSecrets[1]); |
| verify(secretProvider, timeout(timeout).atLeast(2)).rollSecret(); |
| secretProvider.realRollSecret(); |
| |
| currentSecret = secretProvider.getCurrentSecret(); |
| allSecrets = secretProvider.getAllSecrets(); |
| Assert.assertArrayEquals(secret3, currentSecret); |
| Assert.assertEquals(2, allSecrets.length); |
| Assert.assertArrayEquals(secret3, allSecrets[0]); |
| Assert.assertArrayEquals(secret2, allSecrets[1]); |
| verify(secretProvider, timeout(timeout).atLeast(3)).rollSecret(); |
| secretProvider.realRollSecret(); |
| } finally { |
| secretProvider.destroy(); |
| } |
| } |
| |
| /** |
| * A hack to test RandomSignerSecretProvider. |
| * We want to test that RandomSignerSecretProvider.rollSecret() is |
| * periodically called at the expected frequency, but we want to exclude the |
| * race-condition and not take a long time to run the test. |
| */ |
| private class MockRandomSignerSecretProvider |
| extends RandomSignerSecretProvider { |
| MockRandomSignerSecretProvider(long seed) { |
| super(seed); |
| } |
| @Override |
| protected synchronized void rollSecret() { |
| // this is a no-op: simply used for Mockito to verify that rollSecret() |
| // is periodically called at the expected frequency |
| } |
| |
| public void realRollSecret() { |
| // the test code manually calls RandomSignerSecretProvider.rollSecret() |
| // to update the state |
| super.rollSecret(); |
| } |
| } |
| |
| private byte[] generateNewSecret(Random rand) { |
| byte[] secret = new byte[32]; |
| rand.nextBytes(secret); |
| return secret; |
| } |
| } |