Comments (4)
GoogleCodeExporter
commented on June 9, 2024
Oh, I forgot to mention. The second object uses a thread. It starts a thread to
monitor the output of the ssh.
Original comment by [email protected] on 17 Jan 2014 at 7:25
from ganymed-ssh-2.
GoogleCodeExporter
commented on June 9, 2024
[deleted comment]
from ganymed-ssh-2.
GoogleCodeExporter
commented on June 9, 2024
The error message indicates that you called one of the authentication methods
on a connection that is already authenticated. Please post some example code to
demonstrate your threading problem.
Original comment by cleondris on 10 Feb 2014 at 11:24
- Changed state: Invalid
from ganymed-ssh-2.
GoogleCodeExporter
commented on June 9, 2024
Greetings, I wasn't sure how much to remove from the source so I errored on the
side of caution. I started from an example on this site as a starting point.
The first file "lister.java" is called by "listerings.java"
lister.java
// imports removed
public class lister extends JPanel implements Runnable {
static String[][] LoginInfo = new String[10][4];
static int count = 1;
static Connection conn;
static Session sess;
static InputStream in;
static OutputStream out;
static FileWriter fw;
static PrintWriter pw;
static boolean writing = false;
static int indexer = 0;
Thread myThread;
public static lister listing;
boolean watching = false;
static JButton button1;
static JButton button2;
public void run( ) {
SetupConnection(); //iniatize the connection to the ssh server
try { Thread.sleep(1000); } catch ( InterruptedException ie ) {}
SendCommands( 1 ); // send the listed commands to the ssh server
try { Thread.sleep(500); } catch ( InterruptedException ie ) {}
SetWriter(LoginInfo[indexer][3]); // iniatialize the file to be writen
MonitorOutput(); // watches for output from the ssh server, this is the reason why it needs to be in a thread
}
public lister ( ) {
SetLoginInfo();
setLayout(null);
setVisible( true );
setOpaque(true);
setSize( 222, 32 );
String [] items = { "SBC1", "SBC2", "SBC3", "SBC4", "SBC5", "SBC6", "SBC7", "SBC8", "SBC9", "SBC10", };
final JComboBox comboBox = new JComboBox( items );
comboBox.setEditable( false );
comboBox.setLocation( 0, 4 );
comboBox.setSize( 120, 25 );
comboBox.setVisible( true );
add( comboBox );
comboBox.addActionListener( new ActionListener( ) {
public void actionPerformed(ActionEvent ae) {
indexer = comboBox.getSelectedIndex();
}});
// JButton button1 = new JButton( "<html><font size=6 color=green>+</font></html>" );
button1 = new JButton( "<html><font size=6 color=green>+</font></html>" );
button1.setLocation( 127, 4 );
button1.setSize( 45, 25 );
button1.setVisible( true );
button1.setEnabled( true );
add( button1 );
button1.addActionListener( new ActionListener( ) {
public void actionPerformed(ActionEvent ae) {
// primaryEvent();
JOptionPane.showMessageDialog(null, "This feature has been disabled. A trouble ticket has been submitted.");
}
});
// JButton button2 = new JButton( "<html><font size=6 color=red>-</font></html>" );
button2 = new JButton( "<html><font size=6 color=red>-</font></html>" );
button2.setLocation( 175, 4 );
button2.setSize( 45, 25 );
button2.setVisible( true );
button2.setEnabled( true );
add( button2 );
button2.addActionListener( new ActionListener( ) {
public void actionPerformed(ActionEvent ae) {
// secondaryEvent();
JOptionPane.showMessageDialog(null, "This feature has been disabled. A trouble ticket has been submitted.");
}
});
repaint();
}
public void start() {
button1.setEnabled( false );
button2.setEnabled( false );
myThread = new java.lang.Thread ( this );
myThread.start( );
}
public static void stop( String FileLoc ) {
button1.setEnabled( true );
button2.setEnabled( true );
SendCommands( 2 );
CloseWriter();
if ( writing == false ) {
File ren = new File ( LoginInfo[indexer][3] );
String sip = "sipmsg.log";
ren.renameTo( new File( sip ) );
LogCorrector LC = new LogCorrector( sip );
try { Process p = Runtime.getRuntime().exec( "log2cap" ); } catch ( IOException e ) {}
try { Thread.sleep(500); } catch ( InterruptedException ie ) {}
String output = LoginInfo[indexer][3].substring( 0, LoginInfo[indexer][3].length() - 4 ) + ".";
output += FileLoc;
ren = new File ( "sipmsg.log" );
ren.renameTo( new File( output + ".log" ) );
ren = new File ( "sipmsg.cap" );
ren.renameTo( new File( output + ".cap" ) );
}
CloseConnection();
}
public void setWatching( boolean watch ) {
watching = watch;
// System.out.println( watching );
}
public static void CloseConnection() {
// Close this session and the connection
sess.close();
conn.close();
}
public void addgenericlistener(genericlistener listener) {
listenerList.add( genericlistener.class, listener );
}
public void removegenericlistener(genericlistener listener) {
listenerList.remove( genericlistener.class, listener );
}
public void primaryEvent( ) { // possibly make private
Object[] listeners = listenerList.getListenerList( );
for ( int i = 0; i < listeners.length; i += 2 )
if ( listeners[i] == genericlistener.class )
((genericlistener)listeners[i + 1]).primary( new genericevent( this ) );
}
public void secondaryEvent( ) { // possibly make private
Object[] listeners = listenerList.getListenerList( );
for ( int i = 0; i < listeners.length; i += 2 )
if ( listeners[i] == genericlistener.class )
((genericlistener)listeners[i + 1]).secondary( new genericevent( this ) );
}
public void prtyEvent( int a, int b ) { // possibly make private
Object[] listeners = listenerList.getListenerList( );
for ( int i = 0; i < listeners.length; i += 2 )
if ( listeners[i] == genericlistener.class )
((genericlistener)listeners[i + 1]).prtycng( new genericevent( this ), a, b );
}
public void relayEvent( String a ) { // possibly make private
Object[] listeners = listenerList.getListenerList( );
for ( int i = 0; i < listeners.length; i += 2 )
if ( listeners[i] == genericlistener.class )
((genericlistener)listeners[i + 1]).relay( new genericevent( this ), a );
}
public static void SetLoginInfo() {
// removed
}
public static void SetupConnection() {
try {
// Create a connection instance
conn = new Connection( LoginInfo[indexer][0] );
// Now connect
conn.connect();
// Authenticate
boolean isAuthenticated = conn.authenticateWithPassword(LoginInfo[indexer][1], LoginInfo[indexer][2]);
if (isAuthenticated == false)
throw new IOException("Authentication failed.");
// Create a session
sess = conn.openSession();
in = sess.getStdout();
out = sess.getStdin();
int x_width = 90;
int y_width = 30;
sess.requestPTY("dumb", x_width, y_width, 0, 0, null);
sess.startShell();
} catch (IOException e) {
e.printStackTrace(System.err);
System.out.print( "error in connect" );
System.exit(2);
}
}
public static void SendCommands( int mode ) {
try{
String[] commands = new String[3];
if ( mode == 1 ) {
commands[0] = "y\n";
commands[1] = "not sipd siplog\n";
commands[2] = "tail-logfile-open sipd sipmsg.log\n";
} else if ( mode == 2 ) {
commands[0] = "not sipd nosiplog\n";
commands[1] = "exit\n";
commands[2] = "\n";
}
for ( int i = 0; i < commands.length; i++) {
byte[] byteArray = commands[i].getBytes();
out.write(byteArray);
out.flush();
}
} catch (IOException e) {
e.printStackTrace(System.err);
System.exit(2);
}
}
public static void SetWriter( String file ) {
try {
File out = new File( file );
fw = new FileWriter ( out );
pw = new PrintWriter( fw );
} catch ( IOException e ) {}
}
public void MonitorOutput() {
try {
// Advanced:
// The following is a demo on how one can read from stdout and
// stderr without having to use two parallel worker threads (i.e.,
// we don't use the Streamgobblers here) and at the same time not
// risking a deadlock (due to a filled SSH2 channel window, caused
// by the stream which you are currently NOT reading from =).
// Don't wrap these streams and don't let other threads work on
// these streams while you work with Session.waitForCondition()!!!
InputStream stdout = sess.getStdout();
InputStream stderr = sess.getStderr();
byte[] buffer = new byte[8192];
while (true) {
if ((stdout.available() == 0) && (stderr.available() == 0)) {
// Even though currently there is no data available, it may be that new data arrives
// and the session's underlying channel is closed before we call waitForCondition().
// This means that EOF and STDOUT_DATA (or STDERR_DATA, or both) may
// be set together.
int conditions = sess.waitForCondition(ChannelCondition.STDOUT_DATA | ChannelCondition.STDERR_DATA | ChannelCondition.EOF, 2000);
// Wait no longer than 2 seconds (= 2000 milliseconds)
if ((conditions & ChannelCondition.TIMEOUT) != 0) {
// A timeout occured.
//throw new IOException("Timeout while waiting for data from peer.");
}
// Here we do not need to check separately for CLOSED, since CLOSED implies EOF
if ((conditions & ChannelCondition.EOF) != 0) {
// The remote side won't send us further data...
if ((conditions & (ChannelCondition.STDOUT_DATA | ChannelCondition.STDERR_DATA)) == 0) {
// ... and we have consumed all data in the local arrival window.
break;
}
}
// OK, either STDOUT_DATA or STDERR_DATA (or both) is set.
// You can be paranoid and check that the library is not going nuts:
// if ((conditions & (ChannelCondition.STDOUT_DATA | ChannelCondition.STDERR_DATA)) == 0)
// throw new IllegalStateException("Unexpected condition result (" + conditions + ")");
}
// If you below replace "while" with "if", then the way the output appears on the local
// stdout and stder streams is more "balanced". Addtionally reducing the buffer size
// will also improve the interleaving, but performance will slightly suffer.
// OKOK, that all matters only if you get HUGE amounts of stdout and stderr data =)
while (stdout.available() > 0) {
int len = stdout.read(buffer);
//if (len > 0) // this check is somewhat paranoid
// System.out.write(buffer, 0, len);
SaveOutput( len, buffer );
buffer = new byte[8192];
}
while (stderr.available() > 0) {
int len = stderr.read(buffer);
//if (len > 0) // this check is somewhat paranoid
// System.err.write(buffer, 0, len);
SaveOutput( len, buffer );
buffer = new byte[8192];
}
}
} catch (IOException e) {
e.printStackTrace(System.err);
System.exit(2);
}
}
public void SaveOutput( int len, byte[] buffer ) {
boolean[] output = new boolean [4];
output[0] = false; // write to console
output[1] = true; // write to file
output[2] = true; // write to window
writing = ( count == 7 ? true : false );
String stdout = new String();
stdout = new String(buffer);
stdout = stdout.trim();
if ( output[0] ) System.out.println( stdout );
if ( output[1] && writing ) {
stdout = stdout.replaceAll("\r\r","\r");
stdout = stdout.replaceAll("----------------------------------------","----------------------------------------\r\n");
while ( stdout.contains( "----------------------------------------\r\n\r\n" ) )
stdout = stdout.replaceAll("----------------------------------------\r\n\r\n","----------------------------------------\r\n");
pw.print( stdout );
}
if ( output[2] && watching ) relayEvent( stdout );
if ( count < 7 ) count++;
}
public static void CloseWriter() {
try { fw.close( ); }
catch ( IOException e ) {}
writing = false;
}
}
listerings.java
//imports removed
public class listerings extends JPanel {
static lister listing[] = new lister[12];
static JFrame frame;
private static int indexer = 0;
static listerings listering;
public listerings ( ) {
setLayout(null);
setVisible( true );
setOpaque(true);
setSize( 222, 300 ); // change size
repaint();
}
public void addListing( int index ) {
if ( index < 10 ) {
listing[index] = new lister();
listing[index].setLocation( 0, ( 32 * ( index ) ));
// listering.add( listing[index] );
add( listing[index] );
listing[index].addgenericlistener( new genericlistener() {
public void primary(genericevent e) {
addListing( indexer );
}
public void secondary(genericevent e) {
if ( indexer > 1 ) {
removeListing();
}
}
public void prtycng(genericevent e, int a, int b ) {}
public void relay(genericevent e, String a ) {
// System.out.println( a );
// System.out.println( indexer );
if ( indexer == 1 ) relayEvent( a );
}
});
indexer++;
}
setSize( 222, ( 32 * ( indexer ) ) );
prtyEvent( getSize().width, getSize().height );
if ( indexer == 1 ) primaryEvent();
else secondaryEvent();
repaint();
}
private void removeListing() {
// listering.remove( listing[ indexer - 1 ] );
remove( listing[ indexer - 1 ] );
listing[indexer] = null;
indexer--;
setSize( 222, ( 32 * ( indexer ) ) );
prtyEvent( getSize().width, getSize().height );
if ( indexer == 1 ) primaryEvent();
else secondaryEvent();
repaint();
}
public void start() {
for ( int i = 0; i < indexer; i++ ) {
listing[i].start();
}
}
public void stop( String arg1 ) {
for ( int i = 0; i < indexer; i++ ) {
listing[i].stop( arg1 );
}
}
public void setWatching( boolean watch ) {
if ( indexer == 1 ) {
// System.out.println( watch );
listing[0].setWatching( watch );
}
}
public void addgenericlistener(genericlistener listener) {
listenerList.add( genericlistener.class, listener );
}
public void removegenericlistener(genericlistener listener) {
listenerList.remove( genericlistener.class, listener );
}
public void primaryEvent( ) { // possibly make private
Object[] listeners = listenerList.getListenerList( );
for ( int i = 0; i < listeners.length; i += 2 )
if ( listeners[i] == genericlistener.class )
((genericlistener)listeners[i + 1]).primary( new genericevent( this ) );
}
public void secondaryEvent( ) { // possibly make private
Object[] listeners = listenerList.getListenerList( );
for ( int i = 0; i < listeners.length; i += 2 )
if ( listeners[i] == genericlistener.class )
((genericlistener)listeners[i + 1]).secondary( new genericevent( this ) );
}
public void prtyEvent( int a, int b ) { // possibly make private
Object[] listeners = listenerList.getListenerList( );
for ( int i = 0; i < listeners.length; i += 2 )
if ( listeners[i] == genericlistener.class )
((genericlistener)listeners[i + 1]).prtycng( new genericevent( this ), a, b );
}
public void relayEvent( String a ) { // possibly make private
Object[] listeners = listenerList.getListenerList( );
for ( int i = 0; i < listeners.length; i += 2 )
if ( listeners[i] == genericlistener.class )
((genericlistener)listeners[i + 1]).relay( new genericevent( this ), a );
}
public static void main( String[] args ) {
// JFrame frame = new JFrame( "listerings" );
frame = new JFrame( "listerings" );
frame.setLayout(null);
frame.setSize(400, 400);
frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
frame.setVisible( true );
frame.getContentPane().setBackground( Color.red );
// listerings listering = new listerings();
listering = new listerings();
listering.setLocation( 10, 45 );
frame.add( listering );
listering.addListing(0);
listering.addgenericlistener( new genericlistener() {
public void primary(genericevent e) {}
public void secondary(genericevent e) {}
public void prtycng(genericevent e, int a, int b ) {}
public void relay(genericevent e, String a ) {}
});
frame.repaint();
}
}
Original comment by [email protected] on 11 Feb 2014 at 3:29
from ganymed-ssh-2.
Related Issues (20)
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from ganymed-ssh-2.