/*
* 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.sshd;
import java.security.KeyPair;
import java.security.PublicKey;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.sshd.common.KeyPairProvider;
import org.apache.sshd.common.util.KeyUtils;
import org.apache.sshd.server.Command;
import org.apache.sshd.server.CommandFactory;
import org.apache.sshd.server.PublickeyAuthenticator;
import org.apache.sshd.server.auth.CachingPublicKeyAuthenticator;
import org.apache.sshd.server.command.UnknownCommand;
import org.apache.sshd.server.keyprovider.SimpleGeneratorHostKeyProvider;
import org.apache.sshd.server.session.ServerSession;
import org.apache.sshd.util.BaseTest;
import org.apache.sshd.util.Utils;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* TODO Add javadoc
*
* @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
*/
public class SinglePublicKeyAuthTest extends BaseTest {
private SshServer sshd;
private int port = 0;
private KeyPair pairRsa = Utils.createTestHostKeyProvider().loadKey(KeyPairProvider.SSH_RSA);
private KeyPair pairRsaBad = new SimpleGeneratorHostKeyProvider(null, "RSA").loadKey(KeyPairProvider.SSH_RSA);
private PublickeyAuthenticator delegate;
@Before
public void setUp() throws Exception {
port = Utils.getFreePort();
sshd = SshServer.setUpDefaultServer();
sshd.setPort(port);
sshd.setKeyPairProvider(Utils.createTestHostKeyProvider());
sshd.setCommandFactory(new CommandFactory() {
public Command createCommand(String command) {
return new UnknownCommand(command);
}
});
sshd.getProperties().put(SshServer.AUTH_METHODS, "publickey");
sshd.setPublickeyAuthenticator(new PublickeyAuthenticator() {
public boolean authenticate(String username, PublicKey key, ServerSession session) {
return delegate.authenticate(username, key, session);
}
});
sshd.start();
}
@After
public void tearDown() throws Exception {
if (sshd != null) {
sshd.stop(true);
Thread.sleep(50);
}
}
@Test
public void testPublicKeyAuthWithCache() throws Exception {
final ConcurrentHashMap<String, AtomicInteger> count = new ConcurrentHashMap<String, AtomicInteger>();
TestCachingPublicKeyAuthenticator auth = new TestCachingPublicKeyAuthenticator(new PublickeyAuthenticator() {
public boolean authenticate(String username, PublicKey key,
ServerSession session) {
count.putIfAbsent(KeyUtils.getFingerPrint(key), new AtomicInteger());
count.get(KeyUtils.getFingerPrint(key)).incrementAndGet();
return key.equals(pairRsa.getPublic());
}
});
delegate = auth;
SshClient client = SshClient.setUpDefaultClient();
client.start();
ClientSession session = client.connect("smx", "localhost", port).await().getSession();
session.addPublicKeyIdentity(pairRsaBad);
session.addPublicKeyIdentity(pairRsa);
assertTrue(session.auth().await().isSuccess());
assertEquals(2, count.size());
assertTrue(count.containsKey(KeyUtils.getFingerPrint(pairRsaBad.getPublic())));
assertTrue(count.containsKey(KeyUtils.getFingerPrint(pairRsa.getPublic())));
assertEquals(1, count.get(KeyUtils.getFingerPrint(pairRsaBad.getPublic())).get());
assertEquals(1, count.get(KeyUtils.getFingerPrint(pairRsa.getPublic())).get());
client.close(false).await();
Thread.sleep(100);
assertTrue(auth.getCache().isEmpty());
}
@Test
public void testPublicKeyAuthWithoutCache() throws Exception {
final ConcurrentHashMap<String, AtomicInteger> count = new ConcurrentHashMap<String, AtomicInteger>();
delegate = new PublickeyAuthenticator() {
public boolean authenticate(String username, PublicKey key,
ServerSession session) {
count.putIfAbsent(KeyUtils.getFingerPrint(key), new AtomicInteger());
count.get(KeyUtils.getFingerPrint(key)).incrementAndGet();
return key.equals(pairRsa.getPublic());
}
};
SshClient client = SshClient.setUpDefaultClient();
client.start();
ClientSession session = client.connect("smx", "localhost", port).await().getSession();
session.addPublicKeyIdentity(pairRsaBad);
session.addPublicKeyIdentity(pairRsa);
assertTrue(session.auth().await().isSuccess());
assertEquals(2, count.size());
assertTrue(count.containsKey(KeyUtils.getFingerPrint(pairRsaBad.getPublic())));
assertTrue(count.containsKey(KeyUtils.getFingerPrint(pairRsa.getPublic())));
assertEquals(1, count.get(KeyUtils.getFingerPrint(pairRsaBad.getPublic())).get());
assertEquals(2, count.get(KeyUtils.getFingerPrint(pairRsa.getPublic())).get());
}
public static class TestCachingPublicKeyAuthenticator extends CachingPublicKeyAuthenticator {
public TestCachingPublicKeyAuthenticator(PublickeyAuthenticator authenticator) {
super(authenticator);
}
public Map<ServerSession, Map<PublicKey, Boolean>> getCache() {
return cache;
}
}
}