/*
* Copyright 2013 Objectos, Fábrica de Software LTDA.
*
* 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 br.com.objectos.way.ssh;
import com.jcraft.jsch.IdentityRepository;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.agentproxy.AgentProxyException;
import com.jcraft.jsch.agentproxy.Connector;
import com.jcraft.jsch.agentproxy.ConnectorFactory;
import com.jcraft.jsch.agentproxy.RemoteIdentityRepository;
/**
* @author marcio.endo@objectos.com.br (Marcio Endo)
*/
class SSHBuilderPojo
implements
SshBuilder,
SshBuilder.HostBuider,
SshBuilder.PortBuilder {
static {
JSch.setConfig("PreferredAuthentications", "publickey");
JSch.setConfig("StrictHostKeyChecking", "no");
JSch.setLogger(WaySSHLogger.INSTANCE);
}
private String user = System.getProperty("user.name");
private String host = "localhost";
private int port = 22;
private String knownHosts;
@Override
public HostBuider toHost(String host) {
this.host = host;
return this;
}
@Override
public PortBuilder atPort(int port) {
this.port = port;
return this;
}
@Override
public ConnectBuilder asUser(String user) {
this.user = user;
return this;
}
@Override
public WaySSH connect() {
try {
JSch sch = new JSch();
ConnectorFactory cf = ConnectorFactory.getDefault();
Connector con = cf.createConnector();
IdentityRepository irepo = new RemoteIdentityRepository(con);
sch.setIdentityRepository(irepo);
String knownHosts = knownHosts();
sch.setKnownHosts(knownHosts);
Session session = sch.getSession(user, host, port);
session.connect();
return WaySSH.success(session);
} catch (JSchException e) {
return WaySSH.failed(e);
} catch (AgentProxyException e) {
return WaySSH.failed(e);
}
}
private String knownHosts() {
String res = knownHosts;
if (res == null) {
String userHome = System.getProperty("user.home");
res = String.format("%s/.ssh/known_hosts", userHome);
}
return res;
}
}