static boolean getConnection(String username, String password, String host, int port) {
try {
JSch jsch = new JSch();
session = jsch.getSession(username, host, port);
UserInfo ui = new MyUserInfo();
session.setUserInfo(ui);
MyUserInfo temp = (MyUserInfo) ui;
temp.setPassword(password);
session.connect();
Channel channel = session.openChannel("sftp");
channel.connect();
SFTPFileLoader.sftpChannel = (ChannelSftp) channel;
return true;
} catch (Exception e) {
System.out.println(e);
errorMessage += e.toString();
}
return false;
}
public static void main(String[] arg) throws JSchException, InterruptedException {
JSch jsch = new JSch();
String[] proxyInfo = queryUserAndHost("proxy server", arg.length > 0 ? arg[0] : null);
Session gateway = jsch.getSession(proxyInfo[0], proxyInfo[1]);
UserInfo ui = new SwingDialogUserInfo();
gateway.setUserInfo(ui);
gateway.connect();
String[] targetInfo = queryUserAndHost("target server", arg.length > 1 ? arg[1] : null);
Session session = jsch.getSession(targetInfo[0], targetInfo[1]);
session.setProxy(new ProxySSH(gateway));
session.setUserInfo(ui);
System.err.println("connecting session ...");
session.connect();
System.err.println("session connected.");
System.err.println("opening shell channel ...");
Channel channel = session.openChannel("shell");
channel.setOutputStream(System.out, true);
channel.setExtOutputStream(System.err, true);
channel.setInputStream(System.in, true);
channel.connect();
System.err.println("shell channel connected.");
do {
Thread.sleep(100);
} while (!channel.isEOF());
System.err.println("exitcode: " + channel.getExitStatus());
session.disconnect();
Thread.sleep(50);
gateway.disconnect();
}
public static void main(String[] arg) {
String xhost = "127.0.0.1";
int xport = 0;
try {
JSch jsch = new JSch();
String host = null;
if (arg.length > 0) {
host = arg[0];
} else {
host =
JOptionPane.showInputDialog(
"Enter username@hostname", System.getProperty("user.name") + "@localhost");
}
String user = host.substring(0, host.indexOf('@'));
host = host.substring(host.indexOf('@') + 1);
Session session = jsch.getSession(user, host, 22);
String display =
JOptionPane.showInputDialog("Please enter display name", xhost + ":" + xport);
xhost = display.substring(0, display.indexOf(':'));
xport = Integer.parseInt(display.substring(display.indexOf(':') + 1));
session.setX11Host(xhost);
session.setX11Port(xport + 6000);
// username and password will be given via UserInfo interface.
UserInfo ui = new MyUserInfo();
session.setUserInfo(ui);
session.connect();
Channel channel = session.openChannel("shell");
channel.setXForwarding(true);
channel.setInputStream(System.in);
channel.setOutputStream(System.out);
channel.connect();
} catch (Exception e) {
System.out.println(e);
}
}
public static void main(String[] arg) {
int lport;
String rhost;
int rport;
try {
JSch jsch = new JSch();
String host = null;
if (arg.length > 0) {
host = arg[0];
} else {
host =
JOptionPane.showInputDialog(
"Enter username@hostname", System.getProperty("user.name") + "@localhost");
}
String user = host.substring(0, host.indexOf('@'));
host = host.substring(host.indexOf('@') + 1);
Session session = jsch.getSession(user, host, 22);
String foo = JOptionPane.showInputDialog("Enter -L port:host:hostport", "port:host:hostport");
lport = Integer.parseInt(foo.substring(0, foo.indexOf(':')));
foo = foo.substring(foo.indexOf(':') + 1);
rhost = foo.substring(0, foo.indexOf(':'));
rport = Integer.parseInt(foo.substring(foo.indexOf(':') + 1));
// username and password will be given via UserInfo interface.
UserInfo ui = new MyUserInfo();
session.setUserInfo(ui);
session.connect();
// Channel channel=session.openChannel("shell");
// channel.connect();
int assinged_port = session.setPortForwardingL(lport, rhost, rport);
System.out.println("localhost:" + assinged_port + " -> " + rhost + ":" + rport);
} catch (Exception e) {
System.out.println(e);
}
}
public static void main(String[] arg) {
if (arg.length != 2) {
System.err.println("usage: java ScpTo file1 user@remotehost:file2");
System.exit(-1);
}
FileInputStream fis = null;
try {
String lfile = arg[0];
String user = arg[1].substring(0, arg[1].indexOf('@'));
arg[1] = arg[1].substring(arg[1].indexOf('@') + 1);
String host = arg[1].substring(0, arg[1].indexOf(':'));
String rfile = arg[1].substring(arg[1].indexOf(':') + 1);
JSch jsch = new JSch();
Session session = jsch.getSession(user, host, 22);
// username and password will be given via UserInfo interface.
UserInfo ui = new MyUserInfo();
session.setUserInfo(ui);
session.connect();
boolean ptimestamp = true;
// exec 'scp -t rfile' remotely
String command = "scp " + (ptimestamp ? "-p" : "") + " -t " + rfile;
Channel channel = session.openChannel("exec");
((ChannelExec) channel).setCommand(command);
// get I/O streams for remote scp
OutputStream out = channel.getOutputStream();
InputStream in = channel.getInputStream();
channel.connect();
if (checkAck(in) != 0) {
System.exit(0);
}
File _lfile = new File(lfile);
if (ptimestamp) {
command = "T " + (_lfile.lastModified() / 1000) + " 0";
// The access time should be sent here,
// but it is not accessible with JavaAPI ;-<
command += (" " + (_lfile.lastModified() / 1000) + " 0\n");
out.write(command.getBytes());
out.flush();
if (checkAck(in) != 0) {
System.exit(0);
}
}
// send "C0644 filesize filename", where filename should not include '/'
long filesize = _lfile.length();
command = "C0644 " + filesize + " ";
if (lfile.lastIndexOf('/') > 0) {
command += lfile.substring(lfile.lastIndexOf('/') + 1);
} else {
command += lfile;
}
command += "\n";
out.write(command.getBytes());
out.flush();
if (checkAck(in) != 0) {
System.exit(0);
}
// send a content of lfile
fis = new FileInputStream(lfile);
byte[] buf = new byte[1024];
while (true) {
int len = fis.read(buf, 0, buf.length);
if (len <= 0) break;
out.write(buf, 0, len); // out.flush();
}
fis.close();
fis = null;
// send '\0'
buf[0] = 0;
out.write(buf, 0, 1);
out.flush();
if (checkAck(in) != 0) {
System.exit(0);
}
out.close();
channel.disconnect();
session.disconnect();
System.exit(0);
} catch (Exception e) {
System.out.println(e);
try {
if (fis != null) fis.close();
} catch (Exception ee) {
}
}
}
/**
* Creates a SSH Session with a remote machine and tries to login according to the details
* specified by Contact An appropriate message is shown to the end user in case the login fails
*
* @param sshContact ID of SSH Contact
* @throws JSchException if a JSch is unable to create a SSH Session with the remote machine
* @throws InterruptedException if the thread is interrupted before session connected or is timed
* out
* @throws OperationFailedException if not of above reasons :-)
*/
public void createSSHSessionAndLogin(ContactSSH sshContact)
throws JSchException, OperationFailedException, InterruptedException {
logger.info("Creating a new SSH Session to " + sshContact.getHostName());
// creating a new JSch Stack identifier for contact
JSch jsch = new JSch();
String knownHosts = (String) accountID.getAccountProperties().get("KNOWN_HOSTS_FILE");
if (!knownHosts.equals("Optional")) jsch.setKnownHosts(knownHosts);
String identitiyKey = (String) accountID.getAccountProperties().get("IDENTITY_FILE");
String userName = sshContact.getUserName();
// use the name of system user if the contact has not supplied SSH
// details
if (userName.equals("")) userName = System.getProperty("user.name");
if (!identitiyKey.equals("Optional")) jsch.addIdentity(identitiyKey);
// creating a new session for the contact
Session session =
jsch.getSession(
userName, sshContact.getHostName(), sshContact.getSSHConfigurationForm().getPort());
/**
* Creating and associating User Info with the session User Info passes authentication from
* sshContact to SSH Stack
*/
SSHUserInfo sshUserInfo = new SSHUserInfo(sshContact);
session.setUserInfo(sshUserInfo);
/** initializing the session */
session.connect(connectionTimeout);
int count = 0;
// wait for session to get connected
while (!session.isConnected() && count <= 30000) {
Thread.sleep(1000);
count += 1000;
logger.trace("SSH:" + sshContact.getHostName() + ": Sleep zzz .. ");
}
// if timeout have exceeded
if (count > 30000) {
sshContact.setSSHSession(null);
JOptionPane.showMessageDialog(
null, "SSH Connection attempt to " + sshContact.getHostName() + " timed out");
// error codes are not defined yet
throw new OperationFailedException(
"SSH Connection attempt to " + sshContact.getHostName() + " timed out", 2);
}
sshContact.setJSch(jsch);
sshContact.setSSHSession(session);
logger.info("A new SSH Session to " + sshContact.getHostName() + " Created");
}
/**
* This will not reuse any session, it will create the session and close it at the end
*
* @param commandInfo Encapsulated information about command. E.g :- executable name parameters
* etc ...
* @param serverInfo The SSHing server information.
* @param authenticationInfo Security data needs to be communicated with remote server.
* @param commandOutput The output of the command.
* @param configReader configuration required for ssh/gshissh connection
* @throws SSHApiException throw exception when error occurs
*/
public static void executeCommand(
CommandInfo commandInfo,
ServerInfo serverInfo,
AuthenticationInfo authenticationInfo,
CommandOutput commandOutput,
ConfigReader configReader)
throws SSHApiException {
if (authenticationInfo instanceof GSIAuthenticationInfo) {
System.setProperty(
X509_CERT_DIR,
(String)
((GSIAuthenticationInfo) authenticationInfo).getProperties().get("X509_CERT_DIR"));
}
JSch jsch = new ExtendedJSch();
log.debug(
"Connecting to server - "
+ serverInfo.getHost()
+ ":"
+ serverInfo.getPort()
+ " with user name - "
+ serverInfo.getUserName());
Session session;
try {
session =
jsch.getSession(serverInfo.getUserName(), serverInfo.getHost(), serverInfo.getPort());
} catch (JSchException e) {
throw new SSHApiException(
"An exception occurred while creating SSH session."
+ "Connecting server - "
+ serverInfo.getHost()
+ ":"
+ serverInfo.getPort()
+ " connecting user name - "
+ serverInfo.getUserName(),
e);
}
java.util.Properties config = configReader.getProperties();
session.setConfig(config);
// =============================================================
// Handling vanilla SSH pieces
// =============================================================
if (authenticationInfo instanceof SSHPasswordAuthentication) {
String password =
((SSHPasswordAuthentication) authenticationInfo)
.getPassword(serverInfo.getUserName(), serverInfo.getHost());
session.setUserInfo(new SSHAPIUIKeyboardInteractive(password));
// TODO figure out why we need to set password to session
session.setPassword(password);
} else if (authenticationInfo instanceof SSHPublicKeyFileAuthentication) {
SSHPublicKeyFileAuthentication sshPublicKeyFileAuthentication =
(SSHPublicKeyFileAuthentication) authenticationInfo;
String privateKeyFile =
sshPublicKeyFileAuthentication.getPrivateKeyFile(
serverInfo.getUserName(), serverInfo.getHost());
logDebug("The private key file for vanilla SSH " + privateKeyFile);
String publicKeyFile =
sshPublicKeyFileAuthentication.getPrivateKeyFile(
serverInfo.getUserName(), serverInfo.getHost());
logDebug("The public key file for vanilla SSH " + publicKeyFile);
Identity identityFile;
try {
identityFile = GSISSHIdentityFile.newInstance(privateKeyFile, null, jsch);
} catch (JSchException e) {
throw new SSHApiException(
"An exception occurred while initializing keys using files. "
+ "(private key and public key)."
+ "Connecting server - "
+ serverInfo.getHost()
+ ":"
+ serverInfo.getPort()
+ " connecting user name - "
+ serverInfo.getUserName()
+ " private key file - "
+ privateKeyFile
+ ", public key file - "
+ publicKeyFile,
e);
}
// Add identity to identity repository
GSISSHIdentityRepository identityRepository = new GSISSHIdentityRepository(jsch);
identityRepository.add(identityFile);
// Set repository to session
session.setIdentityRepository(identityRepository);
// Set the user info
SSHKeyPasswordHandler sshKeyPasswordHandler =
new SSHKeyPasswordHandler((SSHKeyAuthentication) authenticationInfo);
session.setUserInfo(sshKeyPasswordHandler);
} else if (authenticationInfo instanceof SSHPublicKeyAuthentication) {
SSHPublicKeyAuthentication sshPublicKeyAuthentication =
(SSHPublicKeyAuthentication) authenticationInfo;
Identity identityFile;
try {
String name = serverInfo.getUserName() + "_" + serverInfo.getHost();
identityFile =
GSISSHIdentityFile.newInstance(
name,
sshPublicKeyAuthentication.getPrivateKey(
serverInfo.getUserName(), serverInfo.getHost()),
sshPublicKeyAuthentication.getPublicKey(
serverInfo.getUserName(), serverInfo.getHost()),
jsch);
} catch (JSchException e) {
throw new SSHApiException(
"An exception occurred while initializing keys using byte arrays. "
+ "(private key and public key)."
+ "Connecting server - "
+ serverInfo.getHost()
+ ":"
+ serverInfo.getPort()
+ " connecting user name - "
+ serverInfo.getUserName(),
e);
}
// Add identity to identity repository
GSISSHIdentityRepository identityRepository = new GSISSHIdentityRepository(jsch);
identityRepository.add(identityFile);
// Set repository to session
session.setIdentityRepository(identityRepository);
// Set the user info
SSHKeyPasswordHandler sshKeyPasswordHandler =
new SSHKeyPasswordHandler((SSHKeyAuthentication) authenticationInfo);
session.setUserInfo(sshKeyPasswordHandler);
}
// Not a good way, but we dont have any choice
if (session instanceof ExtendedSession) {
if (authenticationInfo instanceof GSIAuthenticationInfo) {
((ExtendedSession) session)
.setAuthenticationInfo((GSIAuthenticationInfo) authenticationInfo);
}
}
try {
session.connect();
} catch (JSchException e) {
throw new SSHApiException(
"An exception occurred while connecting to server."
+ "Connecting server - "
+ serverInfo.getHost()
+ ":"
+ serverInfo.getPort()
+ " connecting user name - "
+ serverInfo.getUserName(),
e);
}
String command = commandInfo.getCommand();
Channel channel;
try {
channel = session.openChannel("exec");
((ChannelExec) channel).setCommand(command);
} catch (JSchException e) {
session.disconnect();
throw new SSHApiException(
"Unable to execute command - "
+ command
+ " on server - "
+ serverInfo.getHost()
+ ":"
+ serverInfo.getPort()
+ " connecting user name - "
+ serverInfo.getUserName(),
e);
}
channel.setInputStream(null);
((ChannelExec) channel).setErrStream(commandOutput.getStandardError());
try {
channel.connect();
} catch (JSchException e) {
channel.disconnect();
session.disconnect();
throw new SSHApiException(
"Unable to retrieve command output. Command - "
+ command
+ " on server - "
+ serverInfo.getHost()
+ ":"
+ serverInfo.getPort()
+ " connecting user name - "
+ serverInfo.getUserName(),
e);
}
commandOutput.onOutput(channel);
channel.disconnect();
session.disconnect();
}
public static void main(String[] arg) {
if (arg.length != 2) {
System.err.println("usage: java ScpFrom user@remotehost:file1 file2");
System.exit(-1);
}
FileOutputStream fos = null;
try {
String user = arg[0].substring(0, arg[0].indexOf('@'));
arg[0] = arg[0].substring(arg[0].indexOf('@') + 1);
String host = arg[0].substring(0, arg[0].indexOf(':'));
String rfile = arg[0].substring(arg[0].indexOf(':') + 1);
String lfile = arg[1];
String prefix = null;
if (new File(lfile).isDirectory()) {
prefix = lfile + File.separator;
}
JSch jsch = new JSch();
Session session = jsch.getSession(user, host, 22);
// username and password will be given via UserInfo interface.
UserInfo ui = new MyUserInfo();
session.setUserInfo(ui);
session.connect();
// exec 'scp -f rfile' remotely
String command = "scp -f " + rfile;
Channel channel = session.openChannel("exec");
((ChannelExec) channel).setCommand(command);
// get I/O streams for remote scp
OutputStream out = channel.getOutputStream();
InputStream in = channel.getInputStream();
channel.connect();
byte[] buf = new byte[1024];
// send '\0'
buf[0] = 0;
out.write(buf, 0, 1);
out.flush();
while (true) {
int c = checkAck(in);
if (c != 'C') {
break;
}
// read '0644 '
in.read(buf, 0, 5);
long filesize = 0L;
while (true) {
if (in.read(buf, 0, 1) < 0) {
// error
break;
}
if (buf[0] == ' ') break;
filesize = filesize * 10L + (long) (buf[0] - '0');
}
String file = null;
for (int i = 0; ; i++) {
in.read(buf, i, 1);
if (buf[i] == (byte) 0x0a) {
file = new String(buf, 0, i);
break;
}
}
// System.out.println("filesize="+filesize+", file="+file);
// send '\0'
buf[0] = 0;
out.write(buf, 0, 1);
out.flush();
// read a content of lfile
fos = new FileOutputStream(prefix == null ? lfile : prefix + file);
int foo;
while (true) {
if (buf.length < filesize) foo = buf.length;
else foo = (int) filesize;
foo = in.read(buf, 0, foo);
if (foo < 0) {
// error
break;
}
fos.write(buf, 0, foo);
filesize -= foo;
if (filesize == 0L) break;
}
fos.close();
fos = null;
if (checkAck(in) != 0) {
System.exit(0);
}
// send '\0'
buf[0] = 0;
out.write(buf, 0, 1);
out.flush();
}
session.disconnect();
System.exit(0);
} catch (Exception e) {
System.out.println(e);
try {
if (fos != null) fos.close();
} catch (Exception ee) {
}
}
}