/*******************************************************************************
* Copyright (c) 2012-2017 Codenvy, S.A.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Codenvy, S.A. - initial API and implementation
*******************************************************************************/
package org.eclipse.che.api.ssh.server;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.KeyPair;
import org.eclipse.che.api.core.ConflictException;
import org.eclipse.che.api.core.NotFoundException;
import org.eclipse.che.api.core.ServerException;
import org.eclipse.che.api.ssh.server.model.impl.SshPairImpl;
import org.eclipse.che.api.ssh.server.spi.SshDao;
import javax.inject.Inject;
import javax.inject.Singleton;
import java.io.ByteArrayOutputStream;
import java.util.List;
/**
* Facade for Ssh related operations.
*
* @author Sergii Leschenko
*/
@Singleton
public class SshManager {
private final JSch genJSch;
private final SshDao sshDao;
@Inject
public SshManager(SshDao sshDao) {
this.sshDao = sshDao;
this.genJSch = new JSch();
}
/**
* Generates and stores ssh pair for specified user.
*
* @param owner
* the id of the user who will be the owner of the ssh pair
* @param service
* service name pf ssh pair
* @param name
* name of pair
* @return instance of generated ssh pair
* @throws ConflictException
* when given ssh pair cannot be generated or created
* @throws ServerException
* when any other error occurs during ssh pair generating or creating
*/
public SshPairImpl generatePair(String owner, String service, String name) throws ServerException, ConflictException {
KeyPair keyPair;
try {
keyPair = KeyPair.genKeyPair(genJSch, 2, 2048);
} catch (JSchException e) {
throw new ServerException("Failed to generate ssh pair.", e);
}
ByteArrayOutputStream privateBuff = new ByteArrayOutputStream();
keyPair.writePrivateKey(privateBuff);
ByteArrayOutputStream publicBuff = new ByteArrayOutputStream();
keyPair.writePublicKey(publicBuff, null);
final SshPairImpl generatedSshPair = new SshPairImpl(owner,
service,
name,
publicBuff.toString(),
privateBuff.toString());
sshDao.create(generatedSshPair);
return generatedSshPair;
}
/**
* Creates new ssh pair for specified user.
*
* @param sshPair
* ssh pair to create
* @throws ConflictException
* when given ssh pair cannot be created
* @throws ServerException
* when any other error occurs during ssh pair creating
*/
public void createPair(SshPairImpl sshPair) throws ServerException, ConflictException {
sshDao.create(sshPair);
}
/**
* Returns ssh pair by owner, service and name.
*
* @param owner
* the id of the user who is the owner of the ssh pair
* @param service
* service name of ssh pair
* @param name
* name of ssh pair
* @return ssh pair instance
* @throws NotFoundException
* when ssh pair is not found
* @throws ServerException
* when any other error occurs during ssh pair fetching
*/
public SshPairImpl getPair(String owner, String service, String name) throws NotFoundException, ServerException {
return sshDao.get(owner, service, name);
}
/**
* Returns ssh pairs by owner and service.
*
* @param owner
* the id of the user who is the owner of the ssh pairs
* @param service
* service name of ssh pair
* @return list of ssh pair with given service and owned by given service.
* @throws ServerException
* when any other error occurs during ssh pair fetching
*/
public List<SshPairImpl> getPairs(String owner, String service) throws ServerException {
return sshDao.get(owner, service);
}
/**
* Removes ssh pair by owner, service and name.
*
* @param owner
* the id of the user who is the owner of the ssh pair
* @param service
* service name of ssh pair
* @param name
* of ssh pair
* @throws NotFoundException
* when ssh pair is not found
* @throws ServerException
* when any other error occurs during ssh pair removing
*/
public void removePair(String owner, String service, String name) throws ServerException, NotFoundException {
sshDao.remove(owner, service, name);
}
}