Examples with MessageChannel gov.nist.javax.sip.stack.MessageChannel used on opensource projects

Example 1 with MessageChannel

use of gov.nist.javax.sip.stack.MessageChannel in project XobotOS by xamarin.

the class SipProviderImpl method sendResponse.

/*
     * (non-Javadoc)
     *
     * @see javax.sip.SipProvider#sendResponse(javax.sip.message.Response)
     */
public void sendResponse(Response response) throws SipException {
    if (!sipStack.isAlive())
        throw new SipException("Stack is stopped");
    SIPResponse sipResponse = (SIPResponse) response;
    Via via = sipResponse.getTopmostVia();
    if (via == null)
        throw new SipException("No via header in response!");
    SIPServerTransaction st = (SIPServerTransaction) sipStack.findTransaction((SIPMessage) response, true);
    if (st != null && st.getState() != TransactionState.TERMINATED && this.isAutomaticDialogSupportEnabled()) {
        throw new SipException("Transaction exists -- cannot send response statelessly");
    }
    String transport = via.getTransport();
    // check to see if Via has "received paramaeter". If so
    // set the host to the via parameter. Else set it to the
    // Via host.
    String host = via.getReceived();
    if (host == null)
        host = via.getHost();
    // Symmetric nat support
    int port = via.getRPort();
    if (port == -1) {
        port = via.getPort();
        if (port == -1) {
            if (transport.equalsIgnoreCase("TLS"))
                port = 5061;
            else
                port = 5060;
        }
    }
    // for correct management of IPv6 addresses.
    if (host.indexOf(":") > 0)
        if (host.indexOf("[") < 0)
            host = "[" + host + "]";
    Hop hop = sipStack.getAddressResolver().resolveAddress(new HopImpl(host, port, transport));
    try {
        ListeningPointImpl listeningPoint = (ListeningPointImpl) this.getListeningPoint(transport);
        if (listeningPoint == null)
            throw new SipException("whoopsa daisy! no listening point found for transport " + transport);
        MessageChannel messageChannel = sipStack.createRawMessageChannel(this.getListeningPoint(hop.getTransport()).getIPAddress(), listeningPoint.port, hop);
        messageChannel.sendMessage(sipResponse);
    } catch (IOException ex) {
        throw new SipException(ex.getMessage());
    }
}

Example 2 with MessageChannel

use of gov.nist.javax.sip.stack.MessageChannel in project XobotOS by xamarin.

the class SipProviderImpl method sendRequest.

/*
     * (non-Javadoc)
     *
     * @see javax.sip.SipProvider#sendRequest(javax.sip.message.Request)
     */
public void sendRequest(Request request) throws SipException {
    if (!sipStack.isAlive())
        throw new SipException("Stack is stopped.");
    // message.
    if (((SIPRequest) request).getRequestLine() != null && request.getMethod().equals(Request.ACK)) {
        Dialog dialog = sipStack.getDialog(((SIPRequest) request).getDialogId(false));
        if (dialog != null && dialog.getState() != null) {
            if (sipStack.isLoggingEnabled())
                sipStack.getStackLogger().logWarning("Dialog exists -- you may want to use Dialog.sendAck() " + dialog.getState());
        }
    }
    Hop hop = sipStack.getRouter((SIPRequest) request).getNextHop(request);
    if (hop == null)
        throw new SipException("could not determine next hop!");
    SIPRequest sipRequest = (SIPRequest) request;
    // Null request is used to send default proxy keepalive messages.
    if ((!sipRequest.isNullRequest()) && sipRequest.getTopmostVia() == null)
        throw new SipException("Invalid SipRequest -- no via header!");
    try {
        /*
             * JvB: Via branch should already be OK, dont touch it here? Some
             * apps forward statelessly, and then it's not set. So set only when
             * not set already, dont overwrite CANCEL branch here..
             */
        if (!sipRequest.isNullRequest()) {
            Via via = sipRequest.getTopmostVia();
            String branch = via.getBranch();
            if (branch == null || branch.length() == 0) {
                via.setBranch(sipRequest.getTransactionId());
            }
        }
        MessageChannel messageChannel = null;
        if (this.listeningPoints.containsKey(hop.getTransport().toUpperCase()))
            messageChannel = sipStack.createRawMessageChannel(this.getListeningPoint(hop.getTransport()).getIPAddress(), this.getListeningPoint(hop.getTransport()).getPort(), hop);
        if (messageChannel != null) {
            messageChannel.sendMessage((SIPMessage) sipRequest, hop);
        } else {
            throw new SipException("Could not create a message channel for " + hop.toString());
        }
    } catch (IOException ex) {
        if (sipStack.isLoggingEnabled()) {
            sipStack.getStackLogger().logException(ex);
        }
        throw new SipException("IO Exception occured while Sending Request", ex);
    } catch (ParseException ex1) {
        InternalErrorHandler.handleException(ex1);
    } finally {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logDebug("done sending " + request.getMethod() + " to hop " + hop);
    }
}

Example 3 with MessageChannel

use of gov.nist.javax.sip.stack.MessageChannel in project XobotOS by xamarin.

the class SipProviderImpl method getNewServerTransaction.

/*
     * (non-Javadoc)
     *
     * @see javax.sip.SipProvider#getNewServerTransaction(javax.sip.message.Request)
     */
public ServerTransaction getNewServerTransaction(Request request) throws TransactionAlreadyExistsException, TransactionUnavailableException {
    if (!sipStack.isAlive())
        throw new TransactionUnavailableException("Stack is stopped");
    SIPServerTransaction transaction = null;
    SIPRequest sipRequest = (SIPRequest) request;
    try {
        sipRequest.checkHeaders();
    } catch (ParseException ex) {
        throw new TransactionUnavailableException(ex.getMessage(), ex);
    }
    if (request.getMethod().equals(Request.ACK)) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logError("Creating server transaction for ACK -- makes no sense!");
        throw new TransactionUnavailableException("Cannot create Server transaction for ACK ");
    }
    /*
         * Got a notify.
         */
    if (sipRequest.getMethod().equals(Request.NOTIFY) && sipRequest.getFromTag() != null && sipRequest.getToTag() == null) {
        SIPClientTransaction ct = sipStack.findSubscribeTransaction(sipRequest, (ListeningPointImpl) this.getListeningPoint());
        /* Issue 104 */
        if (ct == null && !sipStack.deliverUnsolicitedNotify) {
            throw new TransactionUnavailableException("Cannot find matching Subscription (and gov.nist.javax.sip.DELIVER_UNSOLICITED_NOTIFY not set)");
        }
    }
    if (!sipStack.acquireSem()) {
        throw new TransactionUnavailableException("Transaction not available -- could not acquire stack lock");
    }
    try {
        if (sipStack.isDialogCreated(sipRequest.getMethod())) {
            if (sipStack.findTransaction((SIPRequest) request, true) != null)
                throw new TransactionAlreadyExistsException("server transaction already exists!");
            transaction = (SIPServerTransaction) ((SIPRequest) request).getTransaction();
            if (transaction == null)
                throw new TransactionUnavailableException("Transaction not available");
            if (transaction.getOriginalRequest() == null)
                transaction.setOriginalRequest(sipRequest);
            try {
                sipStack.addTransaction(transaction);
            } catch (IOException ex) {
                throw new TransactionUnavailableException("Error sending provisional response");
            }
            // So I can handle timeouts.
            transaction.addEventListener(this);
            if (isAutomaticDialogSupportEnabled()) {
                // If automatic dialog support is enabled then
                // this tx gets his own dialog.
                String dialogId = sipRequest.getDialogId(true);
                SIPDialog dialog = sipStack.getDialog(dialogId);
                if (dialog == null) {
                    dialog = sipStack.createDialog(transaction);
                }
                transaction.setDialog(dialog, sipRequest.getDialogId(true));
                if (sipRequest.getMethod().equals(Request.INVITE) && this.isDialogErrorsAutomaticallyHandled()) {
                    sipStack.putInMergeTable(transaction, sipRequest);
                }
                dialog.addRoute(sipRequest);
                if (dialog.getRemoteTag() != null && dialog.getLocalTag() != null) {
                    this.sipStack.putDialog(dialog);
                }
            }
        } else {
            if (isAutomaticDialogSupportEnabled()) {
                /*
                     * Under automatic dialog support, dialog is tied into a transaction. You cannot
                     * create a server tx except for dialog creating transactions. After that, all
                     * subsequent transactions are created for you by the stack.
                     */
                transaction = (SIPServerTransaction) sipStack.findTransaction((SIPRequest) request, true);
                if (transaction != null)
                    throw new TransactionAlreadyExistsException("Transaction exists! ");
                transaction = (SIPServerTransaction) ((SIPRequest) request).getTransaction();
                if (transaction == null)
                    throw new TransactionUnavailableException("Transaction not available!");
                if (transaction.getOriginalRequest() == null)
                    transaction.setOriginalRequest(sipRequest);
                // Map the transaction.
                try {
                    sipStack.addTransaction(transaction);
                } catch (IOException ex) {
                    throw new TransactionUnavailableException("Could not send back provisional response!");
                }
                // If there is a dialog already assigned then just update the
                // dialog state.
                String dialogId = sipRequest.getDialogId(true);
                SIPDialog dialog = sipStack.getDialog(dialogId);
                if (dialog != null) {
                    dialog.addTransaction(transaction);
                    dialog.addRoute(sipRequest);
                    transaction.setDialog(dialog, sipRequest.getDialogId(true));
                }
            } else {
                transaction = (SIPServerTransaction) sipStack.findTransaction((SIPRequest) request, true);
                if (transaction != null)
                    throw new TransactionAlreadyExistsException("Transaction exists! ");
                transaction = (SIPServerTransaction) ((SIPRequest) request).getTransaction();
                if (transaction != null) {
                    if (transaction.getOriginalRequest() == null)
                        transaction.setOriginalRequest(sipRequest);
                    // Map the transaction.
                    sipStack.mapTransaction(transaction);
                    // If there is a dialog already assigned then just
                    // assign the dialog to the transaction.
                    String dialogId = sipRequest.getDialogId(true);
                    SIPDialog dialog = sipStack.getDialog(dialogId);
                    if (dialog != null) {
                        dialog.addTransaction(transaction);
                        dialog.addRoute(sipRequest);
                        transaction.setDialog(dialog, sipRequest.getDialogId(true));
                    }
                    return transaction;
                } else {
                    // tx does not exist so create the tx.
                    MessageChannel mc = (MessageChannel) sipRequest.getMessageChannel();
                    transaction = sipStack.createServerTransaction(mc);
                    if (transaction == null)
                        throw new TransactionUnavailableException("Transaction unavailable -- too many servrer transactions");
                    transaction.setOriginalRequest(sipRequest);
                    sipStack.mapTransaction(transaction);
                    // If there is a dialog already assigned then just
                    // assign the dialog to the transaction.
                    String dialogId = sipRequest.getDialogId(true);
                    SIPDialog dialog = sipStack.getDialog(dialogId);
                    if (dialog != null) {
                        dialog.addTransaction(transaction);
                        dialog.addRoute(sipRequest);
                        transaction.setDialog(dialog, sipRequest.getDialogId(true));
                    }
                    return transaction;
                }
            }
        }
        return transaction;
    } finally {
        sipStack.releaseSem();
    }
}