/*
* 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.io.InputStream;
import java.io.OutputStream;
import java.util.Arrays;
import com.jcraft.jsch.JSch;
import org.apache.sshd.common.NamedFactory;
import org.apache.sshd.common.compression.CompressionDelayedZlib;
import org.apache.sshd.common.compression.CompressionNone;
import org.apache.sshd.common.compression.CompressionZlib;
import org.apache.sshd.util.BaseTest;
import org.apache.sshd.util.BogusPasswordAuthenticator;
import org.apache.sshd.util.EchoShellFactory;
import org.apache.sshd.util.JSchLogger;
import org.apache.sshd.util.SimpleUserInfo;
import org.apache.sshd.util.Utils;
import org.junit.After;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
/**
* Test compression algorithms.
*
* @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
*/
public class CompressionTest extends BaseTest {
private SshServer sshd;
@Test
public void testCompNone() throws Exception {
setUp(new CompressionNone.Factory());
runTest();
}
@Test
public void testCompZlib() throws Exception {
setUp(new CompressionZlib.Factory());
runTest();
}
@Test
public void testCompDelayedZlib() throws Exception {
setUp(new CompressionDelayedZlib.Factory());
runTest();
}
protected void setUp(NamedFactory<org.apache.sshd.common.Compression> compression) throws Exception {
sshd = SshServer.setUpDefaultServer();
sshd.setKeyPairProvider(Utils.createTestHostKeyProvider());
sshd.setCompressionFactories(Arrays.<NamedFactory<org.apache.sshd.common.Compression>>asList(compression));
sshd.setShellFactory(new EchoShellFactory());
sshd.setPasswordAuthenticator(new BogusPasswordAuthenticator());
sshd.start();
JSch.setConfig("compression.s2c", "zlib@openssh.com,zlib,none");
JSch.setConfig("compression.c2s", "zlib@openssh.com,zlib,none");
JSch.setConfig("zlib", com.jcraft.jsch.jcraft.Compression.class.getName());
JSch.setConfig("zlib@openssh.com", com.jcraft.jsch.jcraft.Compression.class.getName());
}
@After
public void tearDown() throws Exception {
if (sshd != null) {
sshd.stop();
Thread.sleep(50);
}
JSch.setConfig("compression.s2c", "none");
JSch.setConfig("compression.c2s", "none");
}
protected void runTest() throws Exception {
JSchLogger.init();
JSch sch = new JSch();
com.jcraft.jsch.Session s = sch.getSession("smx", "localhost", sshd.getPort());
s.setUserInfo(new SimpleUserInfo("smx"));
s.connect();
com.jcraft.jsch.Channel c = s.openChannel("shell");
try {
c.connect();
OutputStream os = c.getOutputStream();
InputStream is = c.getInputStream();
for (int i = 0; i < 10; i++) {
os.write("this is my command\n".getBytes());
os.flush();
byte[] data = new byte[512];
int len = is.read(data);
String str = new String(data, 0, len);
assertEquals("this is my command\n", str);
}
} finally {
c.disconnect();
s.disconnect();
}
}
}