private static String[] queryUserAndHost(String promptSuffix, String useThis) {
if (useThis == null || !useThis.contains("@")) {
useThis =
JOptionPane.showInputDialog(
"Enter username@hostname for " + promptSuffix,
System.getProperty("user.name") + "@localhost");
}
if (useThis == null) {
throw new NoSuchElementException("User does not want!");
}
return useThis.split("@");
}
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);
}
}
/**
* 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");
}
public class ScpRetrieveFileTransfer extends AbstractRetrieveFileTransfer
implements IScpFileTransfer {
private static final String SCP_COMMAND =
System.getProperty(
"org.eclipse.ecf.filetransfer.scp.retrieve.scpcommand", "scp -f "); // $NON-NLS-1$
private static final String SCP_EXEC =
System.getProperty(
"org.eclipse.ecf.filetransfer.scp.retrieve.scpcommand", "exec"); // $NON-NLS-1$
String username;
Channel channel;
OutputStream responseStream;
private ScpUtil scpUtil;
/*
* (non-Javadoc)
*
* @see
* org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer
* #doPause()
*/
protected boolean doPause() {
return false;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer
* #doResume()
*/
protected boolean doResume() {
return false;
}
public URL getTargetURL() {
return getRemoteFileURL();
}
public Map getOptions() {
return options;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.ecf.provider.filetransfer.outgoing.AbstractOutgoingFileTransfer
* #openStreams()
*/
protected void openStreams() throws IncomingFileTransferException {
try {
// Set input stream from local file
final URL url = getRemoteFileURL();
this.username = url.getUserInfo();
scpUtil = new ScpUtil(this);
final Session s = scpUtil.getSession();
s.connect();
final String command = SCP_COMMAND + scpUtil.trimTargetFile(url.getPath());
channel = s.openChannel(SCP_EXEC);
((ChannelExec) channel).setCommand(command);
channel.connect();
final InputStream ins = channel.getInputStream();
responseStream = channel.getOutputStream();
scpUtil.sendZeroToStream(responseStream);
final int c = checkAck(ins);
if (c != 'C') throw new IOException(Messages.ScpRetrieveFileTransfer_EXCEPTION_SCP_PROTOCOL);
// read '0644 '
final byte[] buf = new byte[1024];
ins.read(buf, 0, 5);
setFileLength(readFileSize(ins, buf));
readFileName(ins, buf);
// set input stream for reading rest of file
remoteFileContents = ins;
scpUtil.sendZeroToStream(responseStream);
fireReceiveStartEvent();
} catch (final Exception e) {
channel = null;
username = null;
throw new IncomingFileTransferException(
NLS.bind(
Messages.ScpRetrieveFileTransfer_EXCEPTION_CONNECTING, getRemoteFileURL().toString()),
e);
}
}
static int checkAck(InputStream in) throws IOException {
int b = in.read();
// b may be 0 for success,
// 1 for error,
// 2 for fatal error,
// -1
if (b == 0) return b;
if (b == -1) return b;
if (b == 1 || b == 2) {
StringBuffer sb = new StringBuffer();
int c;
do {
c = in.read();
sb.append((char) c);
} while (c != '\n');
if (b == 1 || b == 2) { // error
throw new IOException(
Messages.ScpRetrieveFileTransfer_EXCEPTION_SCP_PROTOCOL + ": " + sb.toString());
}
}
return b;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer
* #handleReceivedData(byte[], int, double,
* org.eclipse.core.runtime.IProgressMonitor)
*/
protected void handleReceivedData(byte[] buf, int bytes, double factor, IProgressMonitor monitor)
throws IOException {
if (bytes == -1) {
done = true;
} else {
int fileBytes = bytes;
if ((bytesReceived + bytes) > fileLength) {
fileBytes = (int) (fileLength - bytesReceived);
}
bytesReceived += fileBytes;
localFileContents.write(buf, 0, fileBytes);
fireTransferReceiveDataEvent();
monitor.worked((int) Math.round(factor * fileBytes));
if (fileBytes != bytes) {
scpUtil.checkAck(buf[fileBytes], remoteFileContents);
done = true;
}
}
}
private long readFileSize(InputStream ins, byte[] buf) throws IOException {
long filesize = 0L;
while (true) {
if (ins.read(buf, 0, 1) < 0) {
throw new IOException(Messages.ScpRetrieveFileTransfer_EXCEPTION_ERROR_READING_FILE);
}
if (buf[0] == ' ') break;
filesize = filesize * 10L + (buf[0] - '0');
}
return filesize;
}
private String readFileName(InputStream ins, byte[] buf) throws IOException {
String file = null;
for (int i = 0; ; i++) {
ins.read(buf, i, 1);
if (buf[i] == (byte) 0x0a) {
file = new String(buf, 0, i);
break;
}
}
return file;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.ecf.provider.filetransfer.outgoing.AbstractOutgoingFileTransfer
* #hardClose()
*/
protected void hardClose() {
try {
if (remoteFileContents != null && scpUtil != null) {
scpUtil.sendZeroToStream(responseStream);
scpUtil.dispose();
scpUtil = null;
remoteFileContents = null;
responseStream = null;
}
} catch (final IOException e) {
exception = e;
} finally {
super.hardClose();
channel = null;
username = null;
}
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer
* #getAdapter(java.lang.Class)
*/
public Object getAdapter(Class adapter) {
if (adapter == null) return null;
if (adapter.equals(IFileTransferPausable.class)) return null;
return super.getAdapter(adapter);
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer
* #setupProxy(org.eclipse.ecf.core.util.Proxy)
*/
protected void setupProxy(Proxy proxy) {
this.proxy = proxy;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.ecf.provider.filetransfer.scp.IScpFileTransfer#getConnectContext
* ()
*/
public IConnectContext getConnectContext() {
return connectContext;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.ecf.provider.filetransfer.scp.IScpFileTransfer#getUsername()
*/
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.ecf.provider.filetransfer.scp.IScpFileTransfer#promptPassphrase
* ()
*/
public boolean promptPassphrase() {
// XXX TODO
// return (keyFile != null);
return false;
}
public Proxy getProxy() {
return this.proxy;
}
}