Examples with CSeq gov.nist.javax.sip.header.CSeq used on opensource projects

Example 1 with CSeq

use of gov.nist.javax.sip.header.CSeq 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 2 with CSeq

use of gov.nist.javax.sip.header.CSeq in project XobotOS by xamarin.

the class SIPMessage method removeHeader.

/**
     * Remove a header given its name. If multiple headers of a given name are present then the
     * top flag determines which end to remove headers from.
     * 
     * @param headerName is the name of the header to remove.
     * @param top -- flag that indicates which end of header list to process.
     */
public void removeHeader(String headerName, boolean top) {
    String headerNameLowerCase = SIPHeaderNamesCache.toLowerCase(headerName);
    SIPHeader toRemove = (SIPHeader) nameTable.get(headerNameLowerCase);
    // nothing to do then we are done.
    if (toRemove == null)
        return;
    if (toRemove instanceof SIPHeaderList) {
        SIPHeaderList<?> hdrList = (SIPHeaderList<?>) toRemove;
        if (top)
            hdrList.removeFirst();
        else
            hdrList.removeLast();
        // Clean up empty list
        if (hdrList.isEmpty()) {
            Iterator<SIPHeader> li = this.headers.iterator();
            while (li.hasNext()) {
                SIPHeader sipHeader = (SIPHeader) li.next();
                if (sipHeader.getName().equalsIgnoreCase(headerNameLowerCase))
                    li.remove();
            }
            // JvB: also remove it from the nameTable! Else NPE in
            // DefaultRouter
            nameTable.remove(headerNameLowerCase);
        }
    } else {
        this.nameTable.remove(headerNameLowerCase);
        if (toRemove instanceof From) {
            this.fromHeader = null;
        } else if (toRemove instanceof To) {
            this.toHeader = null;
        } else if (toRemove instanceof CSeq) {
            this.cSeqHeader = null;
        } else if (toRemove instanceof CallID) {
            this.callIdHeader = null;
        } else if (toRemove instanceof MaxForwards) {
            this.maxForwardsHeader = null;
        } else if (toRemove instanceof ContentLength) {
            this.contentLengthHeader = null;
        }
        Iterator<SIPHeader> li = this.headers.iterator();
        while (li.hasNext()) {
            SIPHeader sipHeader = (SIPHeader) li.next();
            if (sipHeader.getName().equalsIgnoreCase(headerName))
                li.remove();
        }
    }
}

Example 3 with CSeq

use of gov.nist.javax.sip.header.CSeq in project XobotOS by xamarin.

the class SIPMessage method removeHeader.

/**
     * Remove all headers given its name.
     * 
     * @param headerName is the name of the header to remove.
     */
public void removeHeader(String headerName) {
    if (headerName == null)
        throw new NullPointerException("null arg");
    String headerNameLowerCase = SIPHeaderNamesCache.toLowerCase(headerName);
    SIPHeader removed = (SIPHeader) nameTable.remove(headerNameLowerCase);
    // nothing to do then we are done.
    if (removed == null)
        return;
    // Remove the fast accessor fields.
    if (removed instanceof From) {
        this.fromHeader = null;
    } else if (removed instanceof To) {
        this.toHeader = null;
    } else if (removed instanceof CSeq) {
        this.cSeqHeader = null;
    } else if (removed instanceof CallID) {
        this.callIdHeader = null;
    } else if (removed instanceof MaxForwards) {
        this.maxForwardsHeader = null;
    } else if (removed instanceof ContentLength) {
        this.contentLengthHeader = null;
    }
    Iterator<SIPHeader> li = this.headers.iterator();
    while (li.hasNext()) {
        SIPHeader sipHeader = (SIPHeader) li.next();
        if (sipHeader.getName().equalsIgnoreCase(headerNameLowerCase))
            li.remove();
    }
}

Example 4 with CSeq

use of gov.nist.javax.sip.header.CSeq in project XobotOS by xamarin.

the class SIPMessage method attachHeader.

/**
     * Attach the header to the SIP Message structure at a specified position in its list of
     * headers.
     * 
     * @param header Header to attach.
     * @param replaceFlag If true then replace the existing header.
     * @param top Location in the header list to insert the header.
     * @exception SIPDuplicateHeaderException if the header is of a type that cannot tolerate
     *            duplicates and one of this type already exists (e.g. CSeq header).
     * @throws IndexOutOfBoundsException If the index specified is greater than the number of
     *         headers that are in this message.
     */
public void attachHeader(SIPHeader header, boolean replaceFlag, boolean top) throws SIPDuplicateHeaderException {
    if (header == null) {
        throw new NullPointerException("null header");
    }
    SIPHeader h;
    if (ListMap.hasList(header) && !SIPHeaderList.class.isAssignableFrom(header.getClass())) {
        SIPHeaderList<SIPHeader> hdrList = ListMap.getList(header);
        hdrList.add(header);
        h = hdrList;
    } else {
        h = header;
    }
    String headerNameLowerCase = SIPHeaderNamesCache.toLowerCase(h.getName());
    if (replaceFlag) {
        nameTable.remove(headerNameLowerCase);
    } else if (nameTable.containsKey(headerNameLowerCase) && !(h instanceof SIPHeaderList)) {
        if (h instanceof ContentLength) {
            try {
                ContentLength cl = (ContentLength) h;
                contentLengthHeader.setContentLength(cl.getContentLength());
            } catch (InvalidArgumentException e) {
            }
        }
        // Just ignore duplicate header.
        return;
    }
    SIPHeader originalHeader = (SIPHeader) getHeader(header.getName());
    // Delete the original header from our list structure.
    if (originalHeader != null) {
        Iterator<SIPHeader> li = headers.iterator();
        while (li.hasNext()) {
            SIPHeader next = (SIPHeader) li.next();
            if (next.equals(originalHeader)) {
                li.remove();
            }
        }
    }
    if (!nameTable.containsKey(headerNameLowerCase)) {
        nameTable.put(headerNameLowerCase, h);
        headers.add(h);
    } else {
        if (h instanceof SIPHeaderList) {
            SIPHeaderList<?> hdrlist = (SIPHeaderList<?>) nameTable.get(headerNameLowerCase);
            if (hdrlist != null)
                hdrlist.concatenate((SIPHeaderList) h, top);
            else
                nameTable.put(headerNameLowerCase, h);
        } else {
            nameTable.put(headerNameLowerCase, h);
        }
    }
    // Direct accessor fields for frequently accessed headers.
    if (h instanceof From) {
        this.fromHeader = (From) h;
    } else if (h instanceof ContentLength) {
        this.contentLengthHeader = (ContentLength) h;
    } else if (h instanceof To) {
        this.toHeader = (To) h;
    } else if (h instanceof CSeq) {
        this.cSeqHeader = (CSeq) h;
    } else if (h instanceof CallID) {
        this.callIdHeader = (CallID) h;
    } else if (h instanceof MaxForwards) {
        this.maxForwardsHeader = (MaxForwards) h;
    }
}

Example 5 with CSeq

use of gov.nist.javax.sip.header.CSeq in project XobotOS by xamarin.

the class SIPDialog method handlePrack.

/**
     * Do the processing necessary for the PRACK
     * 
     * @param prackRequest
     * @return true if this is the first time the tx has seen the prack ( and hence needs to be
     *         passed up to the TU)
     */
public boolean handlePrack(SIPRequest prackRequest) {
    /*
         * The RAck header is sent in a PRACK request to support reliability of provisional
         * responses. It contains two numbers and a method tag. The first number is the value from
         * the RSeq header in the provisional response that is being acknowledged. The next
         * number, and the method, are copied from the CSeq in the response that is being
         * acknowledged. The method name in the RAck header is case sensitive.
         */
    if (!this.isServer()) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logDebug("Dropping Prack -- not a server Dialog");
        return false;
    }
    SIPServerTransaction sipServerTransaction = (SIPServerTransaction) this.getFirstTransaction();
    SIPResponse sipResponse = sipServerTransaction.getReliableProvisionalResponse();
    if (sipResponse == null) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logDebug("Dropping Prack -- ReliableResponse not found");
        return false;
    }
    RAck rack = (RAck) prackRequest.getHeader(RAckHeader.NAME);
    if (rack == null) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logDebug("Dropping Prack -- rack header not found");
        return false;
    }
    CSeq cseq = (CSeq) sipResponse.getCSeq();
    if (!rack.getMethod().equals(cseq.getMethod())) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logDebug("Dropping Prack -- CSeq Header does not match PRACK");
        return false;
    }
    if (rack.getCSeqNumberLong() != cseq.getSeqNumber()) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logDebug("Dropping Prack -- CSeq Header does not match PRACK");
        return false;
    }
    RSeq rseq = (RSeq) sipResponse.getHeader(RSeqHeader.NAME);
    if (rack.getRSequenceNumber() != rseq.getSeqNumber()) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logDebug("Dropping Prack -- RSeq Header does not match PRACK");
        return false;
    }
    return sipServerTransaction.prackRecieved();
}