/***************************************************************************
* Copyright (c) 2014 VMware, Inc. All Rights Reserved.
* 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.
***************************************************************************/
package com.vmware.bdd.utils;
import com.google.common.io.Files;
import org.apache.sshd.server.CommandFactory;
import org.apache.sshd.server.PublickeyAuthenticator;
import org.apache.sshd.server.shell.ProcessShellFactory;
import org.testng.Assert;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import org.apache.sshd.SshServer;
import org.apache.sshd.common.file.nativefs.NativeFileSystemFactory;
import org.apache.sshd.server.Command;
import org.apache.sshd.server.command.ScpCommandFactory;
import org.apache.sshd.server.keyprovider.SimpleGeneratorHostKeyProvider;
import org.apache.sshd.server.session.ServerSession;
import java.io.File;
import java.io.IOException;
import java.security.PublicKey;
public class TestSSHUtil {
private final String username = "serengeti";
private final String hostIP = "127.0.0.1";
private final String privateKeyFile = "src/test/resources/id_rsa";
private final String tempPrivateKeyFile = privateKeyFile + ".temp";
private final int port = 22000;
private SshServer sshd;
@BeforeMethod(alwaysRun = true)
public void setUp() throws Exception {
deleteFile(tempPrivateKeyFile);
Files.copy(new File(privateKeyFile), new File(tempPrivateKeyFile));
setupSSHServer();
}
@AfterMethod(alwaysRun = true)
public void tearDown() {
try {
sshd.stop(true);
} catch (InterruptedException e) {}
deleteFile(tempPrivateKeyFile);
}
private void setupSSHServer() throws IOException {
sshd = SshServer.setUpDefaultServer();
sshd.setFileSystemFactory(new NativeFileSystemFactory());
sshd.setPort(port);
sshd.setShellFactory(new ProcessShellFactory());
sshd.setKeyPairProvider(new SimpleGeneratorHostKeyProvider(tempPrivateKeyFile));
sshd.setCommandFactory(new ScpCommandFactory());
sshd.setCommandFactory(new ScpCommandFactory(new CommandFactory() {
public Command createCommand(String command) {
return new ProcessShellFactory(command.split(" ")).create();
}
}));
sshd.setPublickeyAuthenticator(new PublickeyAuthenticator() {
@Override
public boolean authenticate(String s, PublicKey publicKey, ServerSession serverSession) {
return true;
}
});
sshd.start();
}
@Test
public void testExecCmd() throws Exception {
SSHUtil sshUtil = new SSHUtil();
Assert.assertTrue(sshUtil.execCmd(username, tempPrivateKeyFile, hostIP, port, "hostname", null, null));
new File(tempPrivateKeyFile).delete();
}
@Test
public void testExecCmdWithoutPrivateKeyFile() {
SSHUtil sshUtil = new SSHUtil();
boolean getException = false;
try {
sshUtil.execCmd(username, null, hostIP, port, "hostname", null, null);
} catch (Exception e) {
getException = true;
}
Assert.assertTrue(getException);
}
private void deleteFile(String fileName) {
File tempFile = new File(fileName);
if (tempFile.exists()) {
if (!tempFile.delete()) {
System.out.println("delete file :" + tempFile.getAbsolutePath() + " failed");
}
}
}
}