Examples with SipException javax.sip.SipException used on opensource projects

Example 16 with SipException

use of javax.sip.SipException in project XobotOS by xamarin.

the class SipProviderImpl method getNewDialog.

/*
     * (non-Javadoc)
     *
     * @see javax.sip.SipProvider#getNewDialog(javax.sip.Transaction)
     */
public Dialog getNewDialog(Transaction transaction) throws SipException {
    if (transaction == null)
        throw new NullPointerException("Null transaction!");
    if (!sipStack.isAlive())
        throw new SipException("Stack is stopped.");
    if (isAutomaticDialogSupportEnabled())
        throw new SipException(" Error - AUTOMATIC_DIALOG_SUPPORT is on");
    if (!sipStack.isDialogCreated(transaction.getRequest().getMethod()))
        throw new SipException("Dialog cannot be created for this method " + transaction.getRequest().getMethod());
    SIPDialog dialog = null;
    SIPTransaction sipTransaction = (SIPTransaction) transaction;
    if (transaction instanceof ServerTransaction) {
        SIPServerTransaction st = (SIPServerTransaction) transaction;
        Response response = st.getLastResponse();
        if (response != null) {
            if (response.getStatusCode() != 100)
                throw new SipException("Cannot set dialog after response has been sent");
        }
        SIPRequest sipRequest = (SIPRequest) transaction.getRequest();
        String dialogId = sipRequest.getDialogId(true);
        dialog = sipStack.getDialog(dialogId);
        if (dialog == null) {
            dialog = sipStack.createDialog((SIPTransaction) transaction);
            // create and register the dialog and add the inital route set.
            dialog.addTransaction(sipTransaction);
            dialog.addRoute(sipRequest);
            sipTransaction.setDialog(dialog, null);
        } else {
            sipTransaction.setDialog(dialog, sipRequest.getDialogId(true));
        }
        if (sipRequest.getMethod().equals(Request.INVITE) && this.isDialogErrorsAutomaticallyHandled()) {
            sipStack.putInMergeTable(st, sipRequest);
        }
    } else {
        SIPClientTransaction sipClientTx = (SIPClientTransaction) transaction;
        SIPResponse response = sipClientTx.getLastResponse();
        if (response == null) {
            // A response has not yet been received, then set this up as the
            // default dialog.
            SIPRequest request = (SIPRequest) sipClientTx.getRequest();
            String dialogId = request.getDialogId(false);
            dialog = sipStack.getDialog(dialogId);
            if (dialog != null) {
                throw new SipException("Dialog already exists!");
            } else {
                dialog = sipStack.createDialog(sipTransaction);
            }
            sipClientTx.setDialog(dialog, null);
        } else {
            throw new SipException("Cannot call this method after response is received!");
        }
    }
    dialog.addEventListener(this);
    return dialog;
}

Example 17 with SipException

use of javax.sip.SipException in project XobotOS by xamarin.

the class SIPServerTransaction method sendReliableProvisionalResponse.

protected void sendReliableProvisionalResponse(Response relResponse) throws SipException {
    /*
         * After the first reliable provisional response for a request has been acknowledged, the
         * UAS MAY send additional reliable provisional responses. The UAS MUST NOT send a second
         * reliable provisional response until the first is acknowledged.
         */
    if (this.pendingReliableResponse != null) {
        throw new SipException("Unacknowledged response");
    } else
        this.pendingReliableResponse = (SIPResponse) relResponse;
    /*
         * In addition, it MUST contain a Require header field containing the option tag 100rel,
         * and MUST include an RSeq header field.
         */
    RSeq rseq = (RSeq) relResponse.getHeader(RSeqHeader.NAME);
    if (relResponse.getHeader(RSeqHeader.NAME) == null) {
        rseq = new RSeq();
        relResponse.setHeader(rseq);
    }
    try {
        this.rseqNumber++;
        rseq.setSeqNumber(this.rseqNumber);
        // start the timer task which will retransmit the reliable response
        // until the PRACK is received
        this.lastResponse = (SIPResponse) relResponse;
        if (this.getDialog() != null) {
            boolean acquired = this.provisionalResponseSem.tryAcquire(1, TimeUnit.SECONDS);
            if (!acquired) {
                throw new SipException("Unacknowledged response");
            }
        }
        this.sendMessage((SIPMessage) relResponse);
        this.provisionalResponseTask = new ProvisionalResponseTask();
        this.sipStack.getTimer().schedule(provisionalResponseTask, 0, SIPTransactionStack.BASE_TIMER_INTERVAL);
    } catch (Exception ex) {
        InternalErrorHandler.handleException(ex);
    }
}

Example 18 with SipException

use of javax.sip.SipException in project XobotOS by xamarin.

the class SIPDialog method createAck.

/*
     * (non-Javadoc) The UAC core MUST generate an ACK request for each 2xx received from the
     * transaction layer. The header fields of the ACK are constructed in the same way as for any
     * request sent within a dialog (see Section 12) with the exception of the CSeq and the header
     * fields related to authentication. The sequence number of the CSeq header field MUST be the
     * same as the INVITE being acknowledged, but the CSeq method MUST be ACK. The ACK MUST
     * contain the same credentials as the INVITE. If the 2xx contains an offer (based on the
     * rules above), the ACK MUST carry an answer in its body. If the offer in the 2xx response is
     * not acceptable, the UAC core MUST generate a valid answer in the ACK and then send a BYE
     * immediately.
     * 
     * Note that for the case of forked requests, you can create multiple outgoing invites each
     * with a different cseq and hence you need to supply the invite.
     * 
     * @see javax.sip.Dialog#createAck(long)
     */
public Request createAck(long cseqno) throws InvalidArgumentException, SipException {
    // then send INVITE+ACK later on
    if (!method.equals(Request.INVITE))
        throw new SipException("Dialog was not created with an INVITE" + method);
    if (cseqno <= 0)
        throw new InvalidArgumentException("bad cseq <= 0 ");
    else if (cseqno > ((((long) 1) << 32) - 1))
        throw new InvalidArgumentException("bad cseq > " + ((((long) 1) << 32) - 1));
    if (this.remoteTarget == null) {
        throw new SipException("Cannot create ACK - no remote Target!");
    }
    if (this.sipStack.isLoggingEnabled()) {
        this.sipStack.getStackLogger().logDebug("createAck " + this + " cseqno " + cseqno);
    }
    // out of order ACK sending. Old ACKs seqno's can always be ACKed.
    if (lastInviteOkReceived < cseqno) {
        if (sipStack.isLoggingEnabled()) {
            this.sipStack.getStackLogger().logDebug("WARNING : Attempt to crete ACK without OK " + this);
            this.sipStack.getStackLogger().logDebug("LAST RESPONSE = " + this.lastResponse);
        }
        throw new SipException("Dialog not yet established -- no OK response!");
    }
    try {
        // JvB: Transport from first entry in route set, or remote Contact
        // if none
        // Only used to find correct LP & create correct Via
        SipURI uri4transport = null;
        if (this.routeList != null && !this.routeList.isEmpty()) {
            Route r = (Route) this.routeList.getFirst();
            uri4transport = ((SipURI) r.getAddress().getURI());
        } else {
            // should be !=null, checked above
            uri4transport = ((SipURI) this.remoteTarget.getURI());
        }
        String transport = uri4transport.getTransportParam();
        if (transport == null) {
            // JvB fix: also support TLS
            transport = uri4transport.isSecure() ? ListeningPoint.TLS : ListeningPoint.UDP;
        }
        ListeningPointImpl lp = (ListeningPointImpl) sipProvider.getListeningPoint(transport);
        if (lp == null) {
            if (sipStack.isLoggingEnabled()) {
                sipStack.getStackLogger().logError("remoteTargetURI " + this.remoteTarget.getURI());
                sipStack.getStackLogger().logError("uri4transport = " + uri4transport);
                sipStack.getStackLogger().logError("No LP found for transport=" + transport);
            }
            throw new SipException("Cannot create ACK - no ListeningPoint for transport towards next hop found:" + transport);
        }
        SIPRequest sipRequest = new SIPRequest();
        sipRequest.setMethod(Request.ACK);
        sipRequest.setRequestURI((SipUri) getRemoteTarget().getURI().clone());
        sipRequest.setCallId(this.callIdHeader);
        sipRequest.setCSeq(new CSeq(cseqno, Request.ACK));
        List<Via> vias = new ArrayList<Via>();
        // Via via = lp.getViaHeader();
        // The user may have touched the sentby for the response.
        // so use the via header extracted from the response for the ACK =>
        // https://jain-sip.dev.java.net/issues/show_bug.cgi?id=205
        // strip the params from the via of the response and use the params from the
        // original request
        Via via = this.lastResponse.getTopmostVia();
        via.removeParameters();
        if (originalRequest != null && originalRequest.getTopmostVia() != null) {
            NameValueList originalRequestParameters = originalRequest.getTopmostVia().getParameters();
            if (originalRequestParameters != null && originalRequestParameters.size() > 0) {
                via.setParameters((NameValueList) originalRequestParameters.clone());
            }
        }
        // new branch
        via.setBranch(Utils.getInstance().generateBranchId());
        vias.add(via);
        sipRequest.setVia(vias);
        From from = new From();
        from.setAddress(this.localParty);
        from.setTag(this.myTag);
        sipRequest.setFrom(from);
        To to = new To();
        to.setAddress(this.remoteParty);
        if (hisTag != null)
            to.setTag(this.hisTag);
        sipRequest.setTo(to);
        sipRequest.setMaxForwards(new MaxForwards(70));
        if (this.originalRequest != null) {
            Authorization authorization = this.originalRequest.getAuthorization();
            if (authorization != null)
                sipRequest.setHeader(authorization);
        }
        // ACKs for 2xx responses
        // use the Route values learned from the Record-Route of the 2xx
        // responses.
        this.updateRequest(sipRequest);
        return sipRequest;
    } catch (Exception ex) {
        InternalErrorHandler.handleException(ex);
        throw new SipException("unexpected exception ", ex);
    }
}

Example 19 with SipException

use of javax.sip.SipException in project XobotOS by xamarin.

the class SIPDialog method sendAck.

/**
     * Sends ACK Request to the remote party of this Dialogue.
     * 
     * 
     * @param request the new ACK Request message to send.
     * @param throwIOExceptionAsSipException - throws SipException if IOEx encountered. Otherwise,
     *        no exception is propagated.
     * @param releaseAckSem - release ack semaphore.
     * @throws SipException if implementation cannot send the ACK Request for any other reason
     * 
     */
private void sendAck(Request request, boolean throwIOExceptionAsSipException) throws SipException {
    SIPRequest ackRequest = (SIPRequest) request;
    if (sipStack.isLoggingEnabled())
        sipStack.getStackLogger().logDebug("sendAck" + this);
    if (!ackRequest.getMethod().equals(Request.ACK))
        throw new SipException("Bad request method -- should be ACK");
    if (this.getState() == null || this.getState().getValue() == EARLY_STATE) {
        if (sipStack.isLoggingEnabled()) {
            sipStack.getStackLogger().logError("Bad Dialog State for " + this + " dialogID = " + this.getDialogId());
        }
        throw new SipException("Bad dialog state " + this.getState());
    }
    if (!this.getCallId().getCallId().equals(((SIPRequest) request).getCallId().getCallId())) {
        if (sipStack.isLoggingEnabled()) {
            sipStack.getStackLogger().logError("CallID " + this.getCallId());
            sipStack.getStackLogger().logError("RequestCallID = " + ackRequest.getCallId().getCallId());
            sipStack.getStackLogger().logError("dialog =  " + this);
        }
        throw new SipException("Bad call ID in request");
    }
    try {
        if (sipStack.isLoggingEnabled()) {
            sipStack.getStackLogger().logDebug("setting from tag For outgoing ACK= " + this.getLocalTag());
            sipStack.getStackLogger().logDebug("setting To tag for outgoing ACK = " + this.getRemoteTag());
            sipStack.getStackLogger().logDebug("ack = " + ackRequest);
        }
        if (this.getLocalTag() != null)
            ackRequest.getFrom().setTag(this.getLocalTag());
        if (this.getRemoteTag() != null)
            ackRequest.getTo().setTag(this.getRemoteTag());
    } catch (ParseException ex) {
        throw new SipException(ex.getMessage());
    }
    Hop hop = sipStack.getNextHop(ackRequest);
    // Hop hop = defaultRouter.getNextHop(ackRequest);
    if (hop == null)
        throw new SipException("No route!");
    try {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logDebug("hop = " + hop);
        ListeningPointImpl lp = (ListeningPointImpl) this.sipProvider.getListeningPoint(hop.getTransport());
        if (lp == null)
            throw new SipException("No listening point for this provider registered at " + hop);
        InetAddress inetAddress = InetAddress.getByName(hop.getHost());
        MessageChannel messageChannel = lp.getMessageProcessor().createMessageChannel(inetAddress, hop.getPort());
        boolean releaseAckSem = false;
        long cseqNo = ((SIPRequest) request).getCSeq().getSeqNumber();
        if (!this.isAckSent(cseqNo)) {
            releaseAckSem = true;
        }
        this.setLastAckSent(ackRequest);
        messageChannel.sendMessage(ackRequest);
        // Sent atleast one ACK.
        this.isAcknowledged = true;
        this.highestSequenceNumberAcknowledged = Math.max(this.highestSequenceNumberAcknowledged, ((SIPRequest) ackRequest).getCSeq().getSeqNumber());
        if (releaseAckSem && this.isBackToBackUserAgent) {
            this.releaseAckSem();
        } else {
            if (sipStack.isLoggingEnabled()) {
                sipStack.getStackLogger().logDebug("Not releasing ack sem for " + this + " isAckSent " + releaseAckSem);
            }
        }
    } catch (IOException ex) {
        if (throwIOExceptionAsSipException)
            throw new SipException("Could not send ack", ex);
        this.raiseIOException(hop.getHost(), hop.getPort(), hop.getTransport());
    } catch (SipException ex) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logException(ex);
        throw ex;
    } catch (Exception ex) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logException(ex);
        throw new SipException("Could not create message channel", ex);
    }
    if (this.dialogDeleteTask != null) {
        this.dialogDeleteTask.cancel();
        this.dialogDeleteTask = null;
    }
    this.ackSeen = true;
}

Example 20 with SipException

use of javax.sip.SipException in project XobotOS by xamarin.

the class SIPDialog method sendReliableProvisionalResponse.

/*
     * (non-Javadoc)
     * 
     * @see javax.sip.Dialog#sendReliableProvisionalResponse(javax.sip.message.Response)
     */
public void sendReliableProvisionalResponse(Response relResponse) throws SipException {
    if (!this.isServer()) {
        throw new SipException("Not a Server Dialog");
    }
    SIPResponse sipResponse = (SIPResponse) relResponse;
    if (relResponse.getStatusCode() == 100)
        throw new SipException("Cannot send 100 as a reliable provisional response");
    if (relResponse.getStatusCode() / 100 > 2)
        throw new SipException("Response code is not a 1xx response - should be in the range 101 to 199 ");
    /*
         * Do a little checking on the outgoing response.
         */
    if (sipResponse.getToTag() == null) {
        throw new SipException("Badly formatted response -- To tag mandatory for Reliable Provisional Response");
    }
    ListIterator requireList = (ListIterator) relResponse.getHeaders(RequireHeader.NAME);
    boolean found = false;
    if (requireList != null) {
        while (requireList.hasNext() && !found) {
            RequireHeader rh = (RequireHeader) requireList.next();
            if (rh.getOptionTag().equalsIgnoreCase("100rel")) {
                found = true;
            }
        }
    }
    if (!found) {
        Require require = new Require("100rel");
        relResponse.addHeader(require);
        if (sipStack.isLoggingEnabled()) {
            sipStack.getStackLogger().logDebug("Require header with optionTag 100rel is needed -- adding one");
        }
    }
    SIPServerTransaction serverTransaction = (SIPServerTransaction) this.getFirstTransaction();
    /*
         * put into the dialog table before sending the response so as to avoid race condition
         * with PRACK
         */
    this.setLastResponse(serverTransaction, sipResponse);
    this.setDialogId(sipResponse.getDialogId(true));
    serverTransaction.sendReliableProvisionalResponse(relResponse);
    this.startRetransmitTimer(serverTransaction, relResponse);
}