Examples with SIPRequest gov.nist.javax.sip.message.SIPRequest used on opensource projects

Example 11 with SIPRequest

use of gov.nist.javax.sip.message.SIPRequest 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 12 with SIPRequest

use of gov.nist.javax.sip.message.SIPRequest 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 13 with SIPRequest

use of gov.nist.javax.sip.message.SIPRequest in project XobotOS by xamarin.

the class SIPDialog method createPrack.

/*
     * (non-Javadoc) Retransmissions of the reliable provisional response cease when a matching
     * PRACK is received by the UA core. PRACK is like any other request within a dialog, and the
     * UAS core processes it according to the procedures of Sections 8.2 and 12.2.2 of RFC 3261. A
     * matching PRACK is defined as one within the same dialog as the response, and whose method,
     * CSeq-num, and response-num in the RAck header field match, respectively, the method from
     * the CSeq, the sequence number from the CSeq, and the sequence number from the RSeq of the
     * reliable provisional response.
     * 
     * @see javax.sip.Dialog#createPrack(javax.sip.message.Response)
     */
public Request createPrack(Response relResponse) throws DialogDoesNotExistException, SipException {
    if (this.getState() == null || this.getState().equals(DialogState.TERMINATED))
        throw new DialogDoesNotExistException("Dialog not initialized or terminated");
    if ((RSeq) relResponse.getHeader(RSeqHeader.NAME) == null) {
        throw new SipException("Missing RSeq Header");
    }
    try {
        SIPResponse sipResponse = (SIPResponse) relResponse;
        SIPRequest sipRequest = (SIPRequest) this.createRequest(Request.PRACK, (SIPResponse) relResponse);
        String toHeaderTag = sipResponse.getTo().getTag();
        sipRequest.setToTag(toHeaderTag);
        RAck rack = new RAck();
        RSeq rseq = (RSeq) relResponse.getHeader(RSeqHeader.NAME);
        rack.setMethod(sipResponse.getCSeq().getMethod());
        rack.setCSequenceNumber((int) sipResponse.getCSeq().getSeqNumber());
        rack.setRSequenceNumber(rseq.getSeqNumber());
        sipRequest.setHeader(rack);
        return (Request) sipRequest;
    } catch (Exception ex) {
        InternalErrorHandler.handleException(ex);
        return null;
    }
}

Example 14 with SIPRequest

use of gov.nist.javax.sip.message.SIPRequest in project XobotOS by xamarin.

the class SIPServerTransaction method isMessagePartOfTransaction.

/**
     * Determines if the message is a part of this transaction.
     *
     * @param messageToTest Message to check if it is part of this transaction.
     *
     * @return True if the message is part of this transaction, false if not.
     */
public boolean isMessagePartOfTransaction(SIPMessage messageToTest) {
    // List of Via headers in the message to test
    ViaList viaHeaders;
    // Topmost Via header in the list
    Via topViaHeader;
    // Branch code in the topmost Via header
    String messageBranch;
    // Flags whether the select message is part of this transaction
    boolean transactionMatches;
    transactionMatches = false;
    String method = messageToTest.getCSeq().getMethod();
    // http://bugs.sipit.net/show_bug.cgi?id=769
    if ((method.equals(Request.INVITE) || !isTerminated())) {
        // Get the topmost Via header and its branch parameter
        viaHeaders = messageToTest.getViaHeaders();
        if (viaHeaders != null) {
            topViaHeader = (Via) viaHeaders.getFirst();
            messageBranch = topViaHeader.getBranch();
            if (messageBranch != null) {
                // does not start with the magic cookie,
                if (!messageBranch.toLowerCase().startsWith(SIPConstants.BRANCH_MAGIC_COOKIE_LOWER_CASE)) {
                    // Flags this as old
                    // (RFC2543-compatible) client
                    // version
                    messageBranch = null;
                }
            }
            // If a new branch parameter exists,
            if (messageBranch != null && this.getBranch() != null) {
                if (method.equals(Request.CANCEL)) {
                    // Cancel is handled as a special case because it
                    // shares the same same branch id of the invite
                    // that it is trying to cancel.
                    transactionMatches = this.getMethod().equals(Request.CANCEL) && getBranch().equalsIgnoreCase(messageBranch) && topViaHeader.getSentBy().equals(((Via) getOriginalRequest().getViaHeaders().getFirst()).getSentBy());
                } else {
                    // Matching server side transaction with only the
                    // branch parameter.
                    transactionMatches = getBranch().equalsIgnoreCase(messageBranch) && topViaHeader.getSentBy().equals(((Via) getOriginalRequest().getViaHeaders().getFirst()).getSentBy());
                }
            } else {
                // This is an RFC2543-compliant message; this code is here
                // for backwards compatibility.
                // It is a weak check.
                // If RequestURI, To tag, From tag, CallID, CSeq number, and
                // top Via headers are the same, the
                // SIPMessage matches this transaction. An exception is for
                // a CANCEL request, which is not deemed
                // to be part of an otherwise-matching INVITE transaction.
                String originalFromTag = super.fromTag;
                String thisFromTag = messageToTest.getFrom().getTag();
                boolean skipFrom = (originalFromTag == null || thisFromTag == null);
                String originalToTag = super.toTag;
                String thisToTag = messageToTest.getTo().getTag();
                boolean skipTo = (originalToTag == null || thisToTag == null);
                boolean isResponse = (messageToTest instanceof SIPResponse);
                // be CANCEL for it to have a chance at matching.
                if (messageToTest.getCSeq().getMethod().equalsIgnoreCase(Request.CANCEL) && !getOriginalRequest().getCSeq().getMethod().equalsIgnoreCase(Request.CANCEL)) {
                    transactionMatches = false;
                } else if ((isResponse || getOriginalRequest().getRequestURI().equals(((SIPRequest) messageToTest).getRequestURI())) && (skipFrom || originalFromTag != null && originalFromTag.equalsIgnoreCase(thisFromTag)) && (skipTo || originalToTag != null && originalToTag.equalsIgnoreCase(thisToTag)) && getOriginalRequest().getCallId().getCallId().equalsIgnoreCase(messageToTest.getCallId().getCallId()) && getOriginalRequest().getCSeq().getSeqNumber() == messageToTest.getCSeq().getSeqNumber() && ((!messageToTest.getCSeq().getMethod().equals(Request.CANCEL)) || getOriginalRequest().getMethod().equals(messageToTest.getCSeq().getMethod())) && topViaHeader.equals(getOriginalRequest().getViaHeaders().getFirst())) {
                    transactionMatches = true;
                }
            }
        }
    }
    return transactionMatches;
}

Example 15 with SIPRequest

use of gov.nist.javax.sip.message.SIPRequest in project XobotOS by xamarin.

the class SIPClientTransaction method createCancel.

/*
     * (non-Javadoc)
     * 
     * @see javax.sip.ClientTransaction#createCancel()
     */
public Request createCancel() throws SipException {
    SIPRequest originalRequest = this.getOriginalRequest();
    if (originalRequest == null)
        throw new SipException("Bad state " + getState());
    if (!originalRequest.getMethod().equals(Request.INVITE))
        throw new SipException("Only INIVTE may be cancelled");
    if (originalRequest.getMethod().equalsIgnoreCase(Request.ACK))
        throw new SipException("Cannot Cancel ACK!");
    else {
        SIPRequest cancelRequest = originalRequest.createCancelRequest();
        cancelRequest.setInviteTransaction(this);
        return cancelRequest;
    }
}