/**
* Creates a shell channel to the remote machine a new jsch session is also created if the current
* one is invalid
*
* @param sshContact the contact of the remote machine
* @param firstMessage the first message
*/
public void connectShell(final ContactSSH sshContact, final Message firstMessage) {
sshContact.setConnectionInProgress(true);
final UIService uiService = this.uiService;
final Thread newConnection =
new Thread(
(new Runnable() {
public void run() {
OperationSetPersistentPresenceSSHImpl persistentPresence =
(OperationSetPersistentPresenceSSHImpl)
sshContact.getParentPresenceOperationSet();
persistentPresence.changeContactPresenceStatus(
sshContact, SSHStatusEnum.CONNECTING);
try {
if (!isSessionValid(sshContact)) createSSHSessionAndLogin(sshContact);
createShellChannel(sshContact);
// initalizing the reader and writers of ssh contact
persistentPresence.changeContactPresenceStatus(
sshContact, SSHStatusEnum.CONNECTED);
showWelcomeMessage(sshContact);
sshContact.setMessageType(sshContact.CONVERSATION_MESSAGE_RECEIVED);
sshContact.setConnectionInProgress(false);
Thread.sleep(1500);
sshContact.setCommandSent(true);
basicInstantMessaging.sendInstantMessage(sshContact, firstMessage);
}
// rigoruos Exception Checking in future
catch (Exception ex) {
persistentPresence.changeContactPresenceStatus(
sshContact, SSHStatusEnum.NOT_AVAILABLE);
ex.printStackTrace();
} finally {
sshContact.setConnectionInProgress(false);
}
}
}));
newConnection.start();
}
private void expireLoop() {
while (enabled) {
// Sleep
try {
synchronized (sleepLock) {
sleepLock.wait(POLL_INTERVAL);
}
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
if (!enabled) break;
// Loop over conferences
for (JitsiMeetConference conference :
new ArrayList<JitsiMeetConference>(conferences.values())) {
long idleStamp = conference.getIdleTimestamp();
// Is active ?
if (idleStamp == -1) {
continue;
}
if (System.currentTimeMillis() - idleStamp > timeout) {
logger.info("Focus idle timeout for " + conference.getRoomName());
conference.stop();
}
}
}
}
/**
* The AIM server doesn't like it if we change states too often and we use this method to slow
* things down.
*/
private void pauseBetweenStateChanges() {
try {
Thread.sleep(5000);
} catch (InterruptedException ex) {
logger.debug("Pausing between state changes was interrupted", ex);
}
}
void stop() {
if (timeoutThread == null) {
return;
}
enabled = false;
synchronized (sleepLock) {
sleepLock.notifyAll();
}
try {
if (Thread.currentThread() != timeoutThread) {
timeoutThread.join();
}
timeoutThread = null;
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
/**
* Initializes the server stored list. Synchronize server stored groups and contacts with the
* local groups and contacts.
*/
@Override
public void init() {
try {
SipAccountIDImpl accountID = (SipAccountIDImpl) sipProvider.getAccountID();
if (!accountID.isXiVOEnable()) return;
boolean useSipCredentials = accountID.isClistOptionUseSipCredentials();
String serverAddress = accountID.getClistOptionServerUri();
String username = accountID.getAccountPropertyString(ProtocolProviderFactory.USER_ID);
Address userAddress = sipProvider.parseAddressString(username);
if (useSipCredentials) {
username = ((SipUri) userAddress.getURI()).getUser();
} else {
username = accountID.getClistOptionUser();
}
try {
connect(serverAddress);
} catch (Throwable ex) {
showError(ex, null, null);
logger.error("Error connecting to server", ex);
return;
}
Thread thread = new Thread(this, this.getClass().getName());
thread.setDaemon(true);
thread.start();
if (!login(username)) {
showError(null, null, "Unauthorized. Cannot login.");
logger.error("Cannot login.");
return;
}
} catch (Throwable t) {
logger.error("Error init clist from xivo server");
}
}
void start() {
if (timeoutThread != null) {
throw new IllegalStateException();
}
timeoutThread =
new Thread(
new Runnable() {
@Override
public void run() {
expireLoop();
}
},
"FocusExpireThread");
enabled = true;
timeoutThread.start();
}
/**
* Implements {@link PacketListener}. Notifies this instance that a specific {@link Packet} (which
* this instance has already expressed interest into by returning <tt>true</tt> from {@link
* #accept(Packet)}) has been received.
*
* @param packet the <tt>Packet</tt> which has been received and which this instance is given a
* chance to process
*/
public void processPacket(Packet packet) {
/*
* As we do elsewhere, acknowledge the receipt of the Packet first and
* then go about our business with it.
*/
IQ iq = (IQ) packet;
if (iq.getType() == IQ.Type.SET)
protocolProvider.getConnection().sendPacket(IQ.createResultIQ(iq));
/*
* Now that the acknowledging is out of the way, do go about our
* business with the Packet.
*/
ColibriConferenceIQ conferenceIQ = (ColibriConferenceIQ) iq;
boolean interrupted = false;
try {
processColibriConferenceIQ(conferenceIQ);
} catch (Throwable t) {
logger.error(
"An error occurred during the processing of a " + packet.getClass().getName() + " packet",
t);
if (t instanceof InterruptedException) {
/*
* We cleared the interrupted state of the current Thread by
* catching the InterruptedException. However, we do not really
* care whether the current Thread has been interrupted - we
* caught the InterruptedException because we want to swallow
* any Throwable. Consequently, we should better restore the
* interrupted state.
*/
interrupted = true;
} else if (t instanceof ThreadDeath) throw (ThreadDeath) t;
}
if (interrupted) Thread.currentThread().interrupt();
}
/**
* 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");
}
/** Thread entry point. */
@Override
public void run() {
int status;
long progress;
String statusReason = "";
while (true) {
try {
Thread.sleep(10);
status = parseJabberStatus(jabberTransfer.getStatus());
progress = fileTransfer.getTransferedBytes();
if (status == FileTransferStatusChangeEvent.FAILED
|| status == FileTransferStatusChangeEvent.COMPLETED
|| status == FileTransferStatusChangeEvent.CANCELED
|| status == FileTransferStatusChangeEvent.REFUSED) {
if (fileTransfer instanceof OutgoingFileTransferJabberImpl) {
((OutgoingFileTransferJabberImpl) fileTransfer).removeThumbnailRequestListener();
}
// sometimes a filetransfer can be preparing
// and than completed :
// transfered in one iteration of current thread
// so it won't go through intermediate state - inProgress
// make sure this won't happen
if (status == FileTransferStatusChangeEvent.COMPLETED
&& fileTransfer.getStatus() == FileTransferStatusChangeEvent.PREPARING) {
fileTransfer.fireStatusChangeEvent(
FileTransferStatusChangeEvent.IN_PROGRESS, "Status changed");
fileTransfer.fireProgressChangeEvent(System.currentTimeMillis(), progress);
}
break;
}
fileTransfer.fireStatusChangeEvent(status, "Status changed");
fileTransfer.fireProgressChangeEvent(System.currentTimeMillis(), progress);
} catch (InterruptedException e) {
if (logger.isDebugEnabled()) logger.debug("Unable to sleep thread.", e);
}
}
if (jabberTransfer.getError() != null) {
logger.error(
"An error occured while transfering file: " + jabberTransfer.getError().getMessage());
}
if (jabberTransfer.getException() != null) {
logger.error(
"An exception occured while transfering file: ", jabberTransfer.getException());
if (jabberTransfer.getException() instanceof XMPPException) {
XMPPError error = ((XMPPException) jabberTransfer.getException()).getXMPPError();
if (error != null)
if (error.getCode() == 406 || error.getCode() == 403)
status = FileTransferStatusChangeEvent.REFUSED;
}
statusReason = jabberTransfer.getException().getMessage();
}
if (initialFileSize > 0
&& status == FileTransferStatusChangeEvent.COMPLETED
&& fileTransfer.getTransferedBytes() < initialFileSize) {
status = FileTransferStatusChangeEvent.CANCELED;
}
fileTransfer.fireStatusChangeEvent(status, statusReason);
fileTransfer.fireProgressChangeEvent(System.currentTimeMillis(), progress);
}