public void addHostKey(byte[] key) throws JSchException {
HostKeyRepository hkr = this.jsch.getHostKeyRepository();
HostKey hk = new HostKey(this.host, key);
UserInfo userInfo = new MyUserInfo();
hkr.add(hk, userInfo);
log.info("hostkey added");
}
public Session getSession(String host, Integer port, String user, Boolean hostKeyChecking)
throws JSchException {
if (this.session != null) return this.session;
this.setHost(host);
this.setUser(user);
this.session = jsch.getSession(user, host, port);
java.util.Properties config = new java.util.Properties();
if (hostKeyChecking) {
log.info("strict host key checking enabled");
config.put("StrictHostKeyChecking", "yes");
} else {
log.info("strict host key checking disabled");
config.put("StrictHostKeyChecking", "no");
}
session.setConfig(config);
return session;
}
public void createSession(String host, Integer port, String user, Boolean hostKeyChecking)
throws JSchException {
log.info("creating session");
this.session = this.getSession(host, port, user, hostKeyChecking);
}
@Override
public Integer call() {
int exitstatus = Integer.MAX_VALUE;
Boolean useIdentityFile = null;
String credentials = null;
String userName = nodeCredentials.getUsername();
if (nodeCredentials instanceof LoginCredentialsPassword) {
useIdentityFile = false;
credentials = ((LoginCredentialsPassword) nodeCredentials).getPassword();
} else if (nodeCredentials instanceof LoginCredentialsPrivateKey) {
useIdentityFile = true;
credentials = ((LoginCredentialsPrivateKey) nodeCredentials).getKey().getKeyPath();
}
ChannelExec c = null;
SshClient ssh = null;
try {
ssh = new SshClient();
ssh.createSession(nodeAddress, userName, false);
log.info("connecting with username: "******"connecting using identity file: " + credentials);
} else {
log.info("connecting using password: "******"executing command: " + command);
c.connect();
new Thread(
new Runnable() {
public void run() {
String line;
BufferedReader bufferedInputReader =
new BufferedReader(new InputStreamReader(is));
try {
while ((line = bufferedInputReader.readLine()) != null) {
output.append(line);
synchronized (timeStamp) {
timeStamp = System.currentTimeMillis();
}
}
} catch (IOException e) {
e.printStackTrace();
}
}
})
.start();
new Thread(
new Runnable() {
public void run() {
String line;
BufferedReader bufferedErrorReader =
new BufferedReader(new InputStreamReader(err));
try {
while ((line = bufferedErrorReader.readLine()) != null) {
error.append(line);
synchronized (timeStamp) {
timeStamp = System.currentTimeMillis();
}
}
} catch (IOException e) {
e.printStackTrace();
}
}
})
.start();
while (!c.isClosed()) {
synchronized (this.timeStamp) {
if (System.currentTimeMillis() - this.timeStamp > MAXIMUM_WAITING_TIME_INACTIVITY) {
log.warn("command execution seems inactive, canceling!");
break;
}
}
log.info("waiting for command to finish.");
try {
Thread.sleep(SshClient.DEFAULT_WAITING_TIME_PER_CYCLE);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
exitstatus = c.getExitStatus();
} catch (JSchException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (c != null) {
c.disconnect();
}
if (ssh != null) {
try {
ssh.disconnectSession();
} catch (JSchException e) {
e.printStackTrace();
}
}
}
return exitstatus;
}
public ChannelSftp getSftpChannel() throws JSchException {
Channel channel = session.openChannel("sftp");
log.info("opening sftp channel");
return (ChannelSftp) channel;
}
public ChannelShell getShellChannel() throws JSchException {
Channel channel = session.openChannel("shell");
log.info("opening shell channel");
return (ChannelShell) channel;
}
public ChannelExec getExecutionChannel() throws JSchException {
Channel channel = session.openChannel("exec");
log.info("opening execution channel");
return (ChannelExec) channel;
}
public void disconnectSession() throws JSchException {
log.info("disconnecting session");
this.session.disconnect();
}
public void setSessionPassword(String pw) {
log.info("password set");
this.session.setPassword(pw);
}