Examples of com.ericsson.ssa.sip.Header

com.ericsson.ssa.sip.Header
This class encapsulates all the strange aspects of SIP header parsing Another thing that it encapsulates is the way of restricting access to write to system headers according to the SSA 1.0 specification.
TODO maybe it would be better if all the constant headers are enum and not independet strings ekrigro public static enum Type { ACCEPT("Accept"); private final String value; Type(String value) { this.value = value; } public String getValue() { return value; } }

     */
    private void addPathHeader(SipServletRequestImpl req) {
        FlowToken flowToken = createFlowToken(req.getInitialRemote(), req.getLocal());
        SipURI sipURI = getContainerAddress(flowToken);
        sipURI.setParameter("ob", "");
        Header header = Header.createFormatted(Header.PATH, req);
        header.setValue("<" + sipURI.toString() + ">", false);
        
        req.addHeader(header);
    }

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     * @param req, the request to forward stateless 
     */
    private void forwardRequest(SipServletRequestImpl req)
    {
        //find the flow to forward the request
        Header routeHeader = req.getRawHeader(Header.ROUTE);
        FlowToken flowToken = extractFlowToken(routeHeader);


        if (flowToken != null) {
            try {
                flowToken.validate();

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     * Updates the Record-Route if exists, otherwise creates a new one.
     * @param req
     * @return
     */
    private void updateRecordRouteHeader(SipServletRequestImpl req, Address poppedRoute) {
        Header recordRoute = req.getRawHeader(Header.RECORD_ROUTE);
        if (recordRoute == null) {
            recordRoute = Header.createFormatted(Header.RECORD_ROUTE, req);
            req.addHeader(recordRoute);
        }
        
        recordRoute.setValue('<' + poppedRoute.getURI().toString() + '>', true);
    }

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        FlowToken flowToken = new FlowToken(remotePoint, localPoint);
        return flowToken;
    }


    public void addFlowOnRecordRoute(SipServletRequestImpl req) {
        Header contactHeader = req.getRawHeader(Header.CONTACT);    
        if (contactHeader != null && isOutboundIndicated(contactHeader)) {
                
            if (SipFactoryImpl.isDialogCreational(req.getMethod()) && isFirstHop(req)) {
                 addRecordRouteHeader(req);
            }

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     */
    private void addRecordRouteHeader(SipServletRequestImpl req) {


        FlowToken flowToken = createFlowToken(req.getInitialRemote(), req.getLocal());
        SipURI sipURI = getContainerAddress(flowToken);
        Header header = req.getRawHeader(Header.RECORD_ROUTE);
        
        if (header == null) {
            header = Header.createFormatted(Header.RECORD_ROUTE, req);
            //add route so that any request passes this node
            req.addHeader(header);
        }
        
        header.setValue("<" + sipURI.toString() + ">", false);
    }

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            }




        } else {
            SipServletResponseImpl resp = (SipServletResponseImpl) message;
            Header cseq = resp.getRawHeader(Header.CSEQ);
            /*
             * this should never be null
             */
            if ((cseq == null) || (cseq.getValue() == null)) {
                logger.log(Level.SEVERE, "sip.network.grizzlu.request.cseq.null");
                if (SipMonitoring.isEnabled(SipMonitoring.NETWORK_MANAGER)) {
                    if (((TCPSelectorHandler) handler).getInet() != null){
                    ((NetworkManager) _networkHandler).incrEasInvalidSipMessages(
                            ((TCPSelectorHandler) handler).getInet().getHostAddress(),
                            ((TCPSelectorHandler) handler).getPort());
                    } else {
                        ((NetworkManager) _networkHandler).incrEasReceivedSipRequests(
                            message.getLocal().getAddress().getHostAddress(), -1);
                    }
                }
                return;
            }


            String c = cseq.getValue();
            int index = c.indexOf(' ');
            resp.setMethod(c.substring(index + 1));


            if (logger.isLoggable(Level.FINEST)) {
                logger.log(Level.FINEST, "sip.network.grizzly.in.response",

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            isViaModified = true;
        }


        if (isViaModified) {
            // update the "real" header with the changes above
            Header v = req.getRawHeader(Header.VIA);
            v.setReadOnly(false);


            ListIterator<String> it = v.getValues();
            it.next();
            it.set(via.toString());
            v.setReadOnly(true);
        }        
    }

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            return;
        }


        // POP via
        Header via = resp.getRawHeader(Header.VIA);
        via.setReadOnly(false);


        ListIterator<String> li = via.getValues();
        String topVia = li.next();


        if ((topVia != null) && resp.getMethod().equals("INVITE")) {
            // An INVITE response need to save the topVia, which is used
            // by CANCEL to find it's way to the correct transaction...
            Header viaOfCancel = new MultiLineHeader(Header.VIA, true);
            ViaImpl v = new ViaImpl(topVia);
            viaOfCancel.setValue(v.toString(), true);
            resp.setCancelVia(viaOfCancel);
        }


        // TODO could match to see that it's the right host'n port
        li.remove();

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        // Sending out request UAC or Proxy
        // Slightly special handling of ACK and CANCEL
        String method = req.getMethod();


        if (!method.equals("CANCEL")) {
            Header via = req.getRawHeader(Header.VIA);


            if (via == null) {
                via = new MultiLineHeader(Header.VIA, true);
            }


            TargetTuple ttToUse = selectTTToUse(req);            


            if (log.isLoggable(Level.FINEST)) {
                log.log(Level.FINEST, "Via header transport: " + 
                        ttToUse.getIP()+":"+ttToUse.getPort()+" Transport="+
                        ttToUse.getProtocol().name());
            }


            ViaImpl v = new ViaImpl(req.getProtocol(),
                    req.getTransport().toUpperCase(), ttToUse.getIP(),
                    ttToUse.getPort());
            String id = Transaction.generateBranch();
            v.setParameter(ViaImpl.PARAM_BRANCH, id);


            if (log.isLoggable(Level.FINE)) {
                log.log(Level.FINE, "Adding via = " + v);
            }


            String string_via = v.toString();
            if (req.getHeader("VIA_NEXTHOP_PARAMETERS") != null) {
              // special handling for applications that wants to affect the future via
              String via_nexthop_parameters = req.getHeader("VIA_NEXTHOP_PARAMETERS");
              req.removeHeader("VIA_NEXTHOP_PARAMETERS"); // we should never keep this header when request is sent
              string_via += ';'+ via_nexthop_parameters;  // plain String concatenation, knowledge & responsiblity is of application
            }
            


            via.setValue(string_via, true);
            req.setHeader(via);


            if (!method.equals("ACK")) {
                ClientTransaction ct = method.equals("INVITE")
                    ? new InviteClientTransaction(id, req)

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        _transactionId = null;
    }


  protected void popVia(SipServletResponseImpl resp) {
    // POP via
      Header via = resp.getRawHeader(Header.VIA);
      via.setReadOnly(false);
  
      ListIterator<String> li = via.getValues();
      li.next();
      li.remove();
      via.setReadOnly(true);
  }

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