| /* |
| * 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.server; |
| |
| import java.net.SocketAddress; |
| import java.nio.charset.StandardCharsets; |
| import java.util.concurrent.Semaphore; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import org.apache.sshd.client.SshClient; |
| import org.apache.sshd.client.session.ClientSession; |
| import org.apache.sshd.common.io.IoSession; |
| import org.apache.sshd.common.session.Session; |
| import org.apache.sshd.common.session.SessionListener; |
| import org.apache.sshd.common.util.buffer.Buffer; |
| import org.apache.sshd.common.util.buffer.ByteArrayBuffer; |
| import org.apache.sshd.common.util.io.IoUtils; |
| import org.apache.sshd.common.util.net.SshdSocketAddress; |
| import org.apache.sshd.server.ServerTest.TestEchoShellFactory; |
| import org.apache.sshd.server.session.AbstractServerSession; |
| import org.apache.sshd.server.session.ServerProxyAcceptor; |
| import org.apache.sshd.server.session.ServerSession; |
| import org.apache.sshd.util.test.BaseTestSupport; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.FixMethodOrder; |
| import org.junit.Test; |
| import org.junit.runners.MethodSorters; |
| |
| /** |
| * @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a> |
| */ |
| @FixMethodOrder(MethodSorters.NAME_ASCENDING) |
| public class ServerProxyAcceptorTest extends BaseTestSupport { |
| private SshServer sshd; |
| private SshClient client; |
| |
| public ServerProxyAcceptorTest() { |
| super(); |
| } |
| |
| @Before |
| public void setUp() throws Exception { |
| sshd = setupTestServer(); |
| sshd.setShellFactory(new TestEchoShellFactory()); |
| client = setupTestClient(); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| if (sshd != null) { |
| sshd.stop(true); |
| } |
| if (client != null) { |
| client.stop(); |
| } |
| } |
| |
| @Test |
| public void testClientAddressOverride() throws Exception { |
| SshdSocketAddress expectedClientAddress = new SshdSocketAddress("7.3.6.5", 7365); |
| String proxyMetadata = getCurrentTestName() |
| + " " + expectedClientAddress.getHostName() |
| + " " + expectedClientAddress.getPort(); |
| byte[] metaDataBytes = (proxyMetadata + IoUtils.EOL).getBytes(StandardCharsets.UTF_8); |
| sshd.setServerProxyAcceptor(new ServerProxyAcceptor() { |
| private final AtomicInteger invocationCount = new AtomicInteger(0); |
| |
| @Override |
| public boolean acceptServerProxyMetadata(ServerSession session, Buffer buffer) throws Exception { |
| if (buffer.available() < metaDataBytes.length) { |
| return false; // wait for more data |
| } |
| |
| byte[] rawData = new byte[metaDataBytes.length]; |
| buffer.getRawBytes(rawData); |
| outputDebugMessage("acceptServerProxyMetadata(%s) proxy data: %s", session, |
| new String(rawData, StandardCharsets.UTF_8)); |
| assertArrayEquals("Mismatched meta data", metaDataBytes, rawData); |
| |
| int count = invocationCount.incrementAndGet(); |
| if (count == 1) { |
| ((AbstractServerSession) session).setClientAddress(expectedClientAddress); |
| } else { |
| assertSame("Mismatched client address for invocation #" + count, expectedClientAddress, |
| session.getClientAddress()); |
| } |
| return true; // proxy completed |
| } |
| }); |
| |
| Semaphore sessionSignal = new Semaphore(0); |
| sshd.addSessionListener(new SessionListener() { |
| @Override |
| public void sessionEvent(Session session, Event event) { |
| verifyClientAddress(event.name(), session); |
| if (Event.KeyEstablished.equals(event)) { |
| sessionSignal.release(); |
| } |
| } |
| |
| @Override |
| public void sessionClosed(Session session) { |
| verifyClientAddress("sessionClosed", session); |
| } |
| |
| private void verifyClientAddress(String location, Session session) { |
| assertObjectInstanceOf(location + ": not a server session", ServerSession.class, session); |
| SocketAddress actualClientAddress = ((ServerSession) session).getClientAddress(); |
| assertSame(location + ": mismatched client address instance", expectedClientAddress, actualClientAddress); |
| } |
| }); |
| sshd.start(); |
| |
| client.setClientProxyConnector(session -> { |
| IoSession ioSession = session.getIoSession(); |
| ioSession.writeBuffer(new ByteArrayBuffer(metaDataBytes)); |
| }); |
| client.start(); |
| |
| try (ClientSession session |
| = client.connect(getCurrentTestName(), TEST_LOCALHOST, sshd.getPort()).verify(CONNECT_TIMEOUT).getSession()) { |
| session.addPasswordIdentity(getCurrentTestName()); |
| session.auth().verify(AUTH_TIMEOUT); |
| assertTrue("Failed to receive session signal on time", |
| sessionSignal.tryAcquire(DEFAULT_TIMEOUT.toMillis(), TimeUnit.MILLISECONDS)); |
| } finally { |
| client.stop(); |
| } |
| } |
| } |