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ZOOKEEPER-4545: Backport auto reloading client key/trust store to 3.7
This is cherry-pick from apache#1839. This PR is the same as the apache#1839 on the master branch, only changing the documentation about the version numbers. Signed-off-by: Li Wang <li4wang@gmail.com>
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zookeeper-server/src/test/java/org/apache/zookeeper/server/ClientSSLReloadTest.java
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/** | ||
* 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 | ||
* <p/> | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* <p/> | ||
* 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.zookeeper.server; | ||
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import static org.junit.jupiter.api.Assertions.assertTrue; | ||
import java.io.File; | ||
import java.io.IOException; | ||
import java.nio.charset.StandardCharsets; | ||
import java.security.Security; | ||
import java.util.Properties; | ||
import java.util.concurrent.CountDownLatch; | ||
import java.util.concurrent.TimeUnit; | ||
import jline.internal.Log; | ||
import org.apache.commons.io.FileUtils; | ||
import org.apache.zookeeper.PortAssignment; | ||
import org.apache.zookeeper.WatchedEvent; | ||
import org.apache.zookeeper.ZKTestCase; | ||
import org.apache.zookeeper.ZooKeeper; | ||
import org.apache.zookeeper.client.ZKClientConfig; | ||
import org.apache.zookeeper.common.KeyStoreFileType; | ||
import org.apache.zookeeper.common.X509KeyType; | ||
import org.apache.zookeeper.common.X509TestContext; | ||
import org.apache.zookeeper.server.embedded.ExitHandler; | ||
import org.apache.zookeeper.server.embedded.ZooKeeperServerEmbedded; | ||
import org.apache.zookeeper.server.embedded.ZookeeperServeInfo; | ||
import org.apache.zookeeper.test.ClientBase; | ||
import org.bouncycastle.jce.provider.BouncyCastleProvider; | ||
import org.junit.jupiter.api.AfterEach; | ||
import org.junit.jupiter.api.BeforeEach; | ||
import org.junit.jupiter.api.Test; | ||
import org.slf4j.Logger; | ||
import org.slf4j.LoggerFactory; | ||
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public class ClientSSLReloadTest extends ZKTestCase { | ||
protected static final Logger LOG = LoggerFactory.getLogger(ClientSSLReloadTest.class); | ||
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private X509TestContext x509TestContext1; | ||
private X509TestContext x509TestContext2; | ||
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private File dir1; | ||
private File dir2; | ||
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private File keyStoreFile1; | ||
private File trustStoreFile1; | ||
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private File keyStoreFile2; | ||
private File trustStoreFile2; | ||
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@BeforeEach | ||
public void setup() throws Exception { | ||
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dir1 = ClientBase.createEmptyTestDir(); | ||
dir2 = ClientBase.createEmptyTestDir(); | ||
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Security.addProvider(new BouncyCastleProvider()); | ||
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x509TestContext1 = X509TestContext.newBuilder() | ||
.setTempDir(dir1) | ||
.setKeyStoreKeyType(X509KeyType.EC) | ||
.setTrustStoreKeyType(X509KeyType.EC) | ||
.build(); | ||
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x509TestContext2 = X509TestContext.newBuilder() | ||
.setTempDir(dir2) | ||
.setKeyStoreKeyType(X509KeyType.EC) | ||
.setTrustStoreKeyType(X509KeyType.EC) | ||
.build(); | ||
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keyStoreFile1 = x509TestContext1.getKeyStoreFile(KeyStoreFileType.PEM); | ||
trustStoreFile1 = x509TestContext1.getTrustStoreFile(KeyStoreFileType.PEM); | ||
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keyStoreFile2 = x509TestContext2.getKeyStoreFile(KeyStoreFileType.PEM); | ||
trustStoreFile2 = x509TestContext2.getTrustStoreFile(KeyStoreFileType.PEM); | ||
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String testDataPath = System.getProperty("test.data.dir", "src/test/resources/data"); | ||
} | ||
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@AfterEach | ||
public void teardown() throws Exception { | ||
try { | ||
FileUtils.deleteDirectory(dir1); | ||
FileUtils.deleteDirectory(dir2); | ||
} catch (IOException e) { | ||
// ignore | ||
} | ||
Security.removeProvider(BouncyCastleProvider.PROVIDER_NAME); | ||
} | ||
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/* | ||
* This test performs certificate reload on a ZK server and checks the server presented certificate to the client. | ||
* 1) setup() creates two sets of certificates to be used by the test. | ||
* 2) Start the ZK server with TLS configuration ("client.certReload" config property will refresh the key and trust store for ClientX509Util at runtime) | ||
* 3) ZK client will connect to the server on the secure client port using keyStoreFile1 and trustStoreFile1. | ||
* 4) Update the keyStoreFile1 and trustStoreFile1 files in the filesystem with keyStoreFile2 and trustStoreFile2. | ||
* 5) Till FileChangeWatcher thread is triggered & SSLContext options are reset, ZK client should continue to connect. | ||
* In Junit tests, FileChangeWatcher thread is not triggered immediately upon certifcate update in the filesystem. | ||
* 6) Once the certficates are reloaded by the server, ZK client connect will fail. | ||
* 7) Next, create a new ZK client with updated keystore & truststore paths (keyStoreFile2 and trustStoreFile2). | ||
* 8) Server should accept the connection on the secure client port. | ||
*/ | ||
@Test | ||
public void certficateReloadTest() throws Exception { | ||
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final Properties configZookeeper = getServerConfig(); | ||
try (ZooKeeperServerEmbedded zkServer = ZooKeeperServerEmbedded | ||
.builder() | ||
.baseDir(dir1.toPath()) | ||
.configuration(configZookeeper) | ||
.exitHandler(ExitHandler.LOG_ONLY) | ||
.build()) { | ||
zkServer.start(); | ||
assertTrue(ClientBase.waitForServerUp(zkServer.getConnectionString(), 60000)); | ||
for (int i = 0; i < 100; i++) { | ||
ZookeeperServeInfo.ServerInfo status = ZookeeperServeInfo.getStatus("StandaloneServer*"); | ||
if (status.isLeader() && status.isStandaloneMode()) { | ||
break; | ||
} | ||
Thread.sleep(100); | ||
} | ||
ZookeeperServeInfo.ServerInfo status = ZookeeperServeInfo.getStatus("StandaloneServer*"); | ||
assertTrue(status.isLeader()); | ||
assertTrue(status.isStandaloneMode()); | ||
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CountDownLatch l = new CountDownLatch(1); | ||
ZKClientConfig zKClientConfig = getZKClientConfig(); | ||
// ZK client object created which will connect with keyStoreFile1 and trustStoreFile1 to the server. | ||
try (ZooKeeper zk = new ZooKeeper(zkServer.getSecureConnectionString(), 60000, (WatchedEvent event) -> { | ||
switch (event.getState()) { | ||
case SyncConnected: | ||
l.countDown(); | ||
break; | ||
} | ||
}, zKClientConfig)) { | ||
assertTrue(zk.getClientConfig().getBoolean(ZKClientConfig.SECURE_CLIENT)); | ||
assertTrue(l.await(10, TimeUnit.SECONDS)); | ||
} | ||
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Log.info("Updating keyStore & trustStore files !!!!"); | ||
// Update the keyStoreFile1 and trustStoreFile1 files in the filesystem with keyStoreFile2 & trustStoreFile2 | ||
FileUtils.writeStringToFile(keyStoreFile1, FileUtils.readFileToString(keyStoreFile2, StandardCharsets.US_ASCII), StandardCharsets.US_ASCII, false); | ||
FileUtils.writeStringToFile(trustStoreFile1, FileUtils.readFileToString(trustStoreFile2, StandardCharsets.US_ASCII), StandardCharsets.US_ASCII, false); | ||
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// Till FileChangeWatcher thread is triggered & SSLContext options are reset, ZK client should continue connecting. | ||
for (int i = 0; i < 5; i++) { | ||
CountDownLatch l2 = new CountDownLatch(1); | ||
Thread.sleep(5000); | ||
try (ZooKeeper zk = new ZooKeeper(zkServer.getSecureConnectionString(), 60000, (WatchedEvent event) -> { | ||
switch (event.getState()) { | ||
case SyncConnected: | ||
l.countDown(); | ||
break; | ||
} | ||
}, zKClientConfig)) { | ||
if (!l2.await(5, TimeUnit.SECONDS)) { | ||
LOG.error("Unable to connect to zk server"); | ||
break; | ||
} | ||
} | ||
} | ||
// Use the updated keyStore and trustStore paths when creating the client; Refreshed server should authenticate the client. | ||
zKClientConfig.setProperty("zookeeper.ssl.keyStore.location", keyStoreFile2.getAbsolutePath()); | ||
zKClientConfig.setProperty("zookeeper.ssl.trustStore.location", trustStoreFile2.getAbsolutePath()); | ||
zKClientConfig.setProperty("zookeeper.ssl.keyStore.type", "PEM"); | ||
zKClientConfig.setProperty("zookeeper.ssl.trustStore.type", "PEM"); | ||
CountDownLatch l3 = new CountDownLatch(1); | ||
try (ZooKeeper zk = new ZooKeeper(zkServer.getSecureConnectionString(), 60000, (WatchedEvent event) -> { | ||
switch (event.getState()) { | ||
case SyncConnected: | ||
l3.countDown(); | ||
break; | ||
} | ||
}, zKClientConfig)) { | ||
assertTrue(zk.getClientConfig().getBoolean(ZKClientConfig.SECURE_CLIENT)); | ||
assertTrue(l3.await(10, TimeUnit.SECONDS)); | ||
} | ||
} | ||
} | ||
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private Properties getServerConfig() { | ||
int clientPort = PortAssignment.unique(); | ||
int clientSecurePort = PortAssignment.unique(); | ||
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final Properties configZookeeper = new Properties(); | ||
configZookeeper.put("clientPort", clientPort + ""); | ||
configZookeeper.put("secureClientPort", clientSecurePort + ""); | ||
configZookeeper.put("host", "localhost"); | ||
configZookeeper.put("ticktime", "4000"); | ||
configZookeeper.put("client.certReload", "true"); | ||
// TLS config fields | ||
configZookeeper.put("ssl.keyStore.location", keyStoreFile1.getAbsolutePath()); | ||
configZookeeper.put("ssl.trustStore.location", trustStoreFile1.getAbsolutePath()); | ||
configZookeeper.put("ssl.keyStore.type", "PEM"); | ||
configZookeeper.put("ssl.trustStore.type", "PEM"); | ||
// Netty is required for TLS | ||
configZookeeper.put("serverCnxnFactory", org.apache.zookeeper.server.NettyServerCnxnFactory.class.getName()); | ||
return configZookeeper; | ||
} | ||
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private ZKClientConfig getZKClientConfig() throws IOException { | ||
// Saving copies in JKS format to be used for client calls even after writeStringToFile overwrites keyStoreFile1 and trustStoreFile1 | ||
File clientKeyStore = x509TestContext1.getKeyStoreFile(KeyStoreFileType.JKS); | ||
File clientTrustStore = x509TestContext1.getTrustStoreFile(KeyStoreFileType.JKS); | ||
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ZKClientConfig zKClientConfig = new ZKClientConfig(); | ||
zKClientConfig.setProperty("zookeeper.client.secure", "true"); | ||
zKClientConfig.setProperty("zookeeper.ssl.keyStore.location", clientKeyStore.getAbsolutePath()); | ||
zKClientConfig.setProperty("zookeeper.ssl.trustStore.location", clientTrustStore.getAbsolutePath()); | ||
zKClientConfig.setProperty("zookeeper.ssl.keyStore.type", "JKS"); | ||
zKClientConfig.setProperty("zookeeper.ssl.trustStore.type", "JKS"); | ||
// only netty supports TLS | ||
zKClientConfig.setProperty("zookeeper.clientCnxnSocket", org.apache.zookeeper.ClientCnxnSocketNetty.class.getName()); | ||
return zKClientConfig; | ||
} | ||
} |