/** * Place to put some hacks if needed on incoming requests. * * @param event the incoming request event. * @return status <code>true</code> if we don't need to process this message, just discard it and * <code>false</code> otherwise. */ private boolean applyNonConformanceHacks(RequestEvent event) { Request request = event.getRequest(); try { /* * Max-Forwards is required, yet there are UAs which do not * place it. SipProvider#getNewServerTransaction(Request) * will throw an exception in the case of a missing * Max-Forwards header and this method will eventually just * log it thus ignoring the whole event. */ if (request.getHeader(MaxForwardsHeader.NAME) == null) { // it appears that some buggy providers do send requests // with no Max-Forwards headers, as we are at application level // and we know there will be no endless loops // there is no problem of adding headers and process normally // this messages MaxForwardsHeader maxForwards = SipFactory.getInstance().createHeaderFactory().createMaxForwardsHeader(70); request.setHeader(maxForwards); } } catch (Throwable ex) { logger.warn("Cannot apply incoming request modification!", ex); } try { // using asterisk voice mail initial notify for messages // is ok, but on the fly received messages their notify comes // without subscription-state, so we add it in order to be able to // process message. if (request.getMethod().equals(Request.NOTIFY) && request.getHeader(EventHeader.NAME) != null && ((EventHeader) request.getHeader(EventHeader.NAME)) .getEventType() .equals(OperationSetMessageWaitingSipImpl.EVENT_PACKAGE) && request.getHeader(SubscriptionStateHeader.NAME) == null) { request.addHeader( new HeaderFactoryImpl().createSubscriptionStateHeader(SubscriptionStateHeader.ACTIVE)); } } catch (Throwable ex) { logger.warn("Cannot apply incoming request modification!", ex); } try { // receiving notify message without subscription state // used for keep-alive pings, they have done their job // and are no more need. Skip processing them to avoid // filling logs with unneeded exceptions. if (request.getMethod().equals(Request.NOTIFY) && request.getHeader(SubscriptionStateHeader.NAME) == null) { return true; } } catch (Throwable ex) { logger.warn("Cannot apply incoming request modification!", ex); } return false; }
@Override public void run() { try { logger.logEntry(); // From FromHeader fromHeader = null; try { // this keep alive task only makes sense in case we have // a registrar so we deliberately use our AOR and do not // use the getOurSipAddress() method. fromHeader = provider .getHeaderFactory() .createFromHeader( provider.getRegistrarConnection().getAddressOfRecord(), SipMessageFactory.generateLocalTag()); } catch (ParseException ex) { // this should never happen so let's just log and bail. logger.error("Failed to generate a from header for " + "our register request.", ex); return; } // Call ID Header CallIdHeader callIdHeader = provider.getDefaultJainSipProvider().getNewCallId(); // CSeq Header CSeqHeader cSeqHeader = null; try { cSeqHeader = provider.getHeaderFactory().createCSeqHeader(getNextCSeqValue(), Request.OPTIONS); } catch (ParseException ex) { // Should never happen logger.error("Corrupt Sip Stack", ex); return; } catch (InvalidArgumentException ex) { // Should never happen logger.error("The application is corrupt", ex); return; } // To Header ToHeader toHeader = null; try { // this request isn't really going anywhere so we put our // own address in the To Header. toHeader = provider.getHeaderFactory().createToHeader(fromHeader.getAddress(), null); } catch (ParseException ex) { logger.error("Could not create a To header for address:" + fromHeader.getAddress(), ex); return; } // MaxForwardsHeader MaxForwardsHeader maxForwardsHeader = provider.getMaxForwardsHeader(); // Request Request request = null; try { // create a host-only uri for the request uri header. String domain = ((SipURI) toHeader.getAddress().getURI()).getHost(); // request URI SipURI requestURI = provider.getAddressFactory().createSipURI(null, domain); // Via Headers ArrayList<ViaHeader> viaHeaders = provider.getLocalViaHeaders(requestURI); request = provider .getMessageFactory() .createRequest( requestURI, Request.OPTIONS, callIdHeader, cSeqHeader, fromHeader, toHeader, viaHeaders, maxForwardsHeader); if (logger.isDebugEnabled()) logger.debug("Created OPTIONS request " + request); } catch (ParseException ex) { logger.error("Could not create an OPTIONS request!", ex); return; } Iterator<String> supportedMethods = provider.getSupportedMethods().iterator(); // add to the allows header all methods that we support while (supportedMethods.hasNext()) { String method = supportedMethods.next(); // don't support REGISTERs if (method.equals(Request.REGISTER)) continue; request.addHeader(provider.getHeaderFactory().createAllowHeader(method)); } Iterator<String> events = provider.getKnownEventsList().iterator(); synchronized (provider.getKnownEventsList()) { while (events.hasNext()) { String event = events.next(); request.addHeader(provider.getHeaderFactory().createAllowEventsHeader(event)); } } // Transaction ClientTransaction optionsTrans = null; try { optionsTrans = provider.getDefaultJainSipProvider().getNewClientTransaction(request); } catch (TransactionUnavailableException ex) { logger.error("Could not create options transaction!\n", ex); return; } try { optionsTrans.sendRequest(); if (logger.isDebugEnabled()) logger.debug("sent request= " + request); } catch (SipException ex) { logger.error("Could not send out the options request!", ex); if (ex.getCause() instanceof IOException) { // IOException problem with network disconnect(); } return; } } catch (Exception ex) { logger.error("Cannot send OPTIONS keep alive", ex); } }
/** * Construct a <tt>Request</tt> represent a new message. * * @param to the <tt>Contact</tt> to send <tt>message</tt> to * @param message the <tt>Message</tt> to send. * @return a Message Request destined to the contact * @throws OperationFailedException if an error occurred during the creation of the request */ Request createMessageRequest(Contact to, Message message) throws OperationFailedException { Address toAddress = null; try { toAddress = sipProvider.parseAddressString(to.getAddress()); } catch (ParseException exc) { // Shouldn't happen logger.error("An unexpected error occurred while" + "constructing the address", exc); throw new OperationFailedException( "An unexpected error occurred while" + "constructing the address", OperationFailedException.INTERNAL_ERROR, exc); } // Call ID CallIdHeader callIdHeader = this.sipProvider.getDefaultJainSipProvider().getNewCallId(); // CSeq CSeqHeader cSeqHeader = null; try { // protect seqN synchronized (this) { cSeqHeader = this.sipProvider.getHeaderFactory().createCSeqHeader(seqN++, Request.MESSAGE); } } catch (InvalidArgumentException ex) { // Shouldn't happen logger.error("An unexpected error occurred while" + "constructing the CSeqHeadder", ex); throw new OperationFailedException( "An unexpected error occurred while" + "constructing the CSeqHeadder", OperationFailedException.INTERNAL_ERROR, ex); } catch (ParseException exc) { // shouldn't happen logger.error("An unexpected error occurred while" + "constructing the CSeqHeadder", exc); throw new OperationFailedException( "An unexpected error occurred while" + "constructing the CSeqHeadder", OperationFailedException.INTERNAL_ERROR, exc); } // FromHeader and ToHeader String localTag = SipMessageFactory.generateLocalTag(); FromHeader fromHeader = null; ToHeader toHeader = null; try { // FromHeader fromHeader = this.sipProvider .getHeaderFactory() .createFromHeader(sipProvider.getOurSipAddress(toAddress), localTag); // ToHeader toHeader = this.sipProvider.getHeaderFactory().createToHeader(toAddress, null); } catch (ParseException ex) { // these two should never happen. logger.error( "An unexpected error occurred while" + "constructing the FromHeader or ToHeader", ex); throw new OperationFailedException( "An unexpected error occurred while" + "constructing the FromHeader or ToHeader", OperationFailedException.INTERNAL_ERROR, ex); } // ViaHeaders ArrayList<ViaHeader> viaHeaders = this.sipProvider.getLocalViaHeaders(toAddress); // MaxForwards MaxForwardsHeader maxForwards = this.sipProvider.getMaxForwardsHeader(); // Content params ContentTypeHeader contTypeHeader; ContentLengthHeader contLengthHeader; try { contTypeHeader = this.sipProvider .getHeaderFactory() .createContentTypeHeader(getType(message), getSubType(message)); if (!DEFAULT_MIME_ENCODING.equalsIgnoreCase(message.getEncoding())) contTypeHeader.setParameter("charset", message.getEncoding()); contLengthHeader = this.sipProvider.getHeaderFactory().createContentLengthHeader(message.getSize()); } catch (ParseException ex) { // these two should never happen. logger.error("An unexpected error occurred while" + "constructing the content headers", ex); throw new OperationFailedException( "An unexpected error occurred while" + "constructing the content headers", OperationFailedException.INTERNAL_ERROR, ex); } catch (InvalidArgumentException exc) { // these two should never happen. logger.error( "An unexpected error occurred while" + "constructing the content length header", exc); throw new OperationFailedException( "An unexpected error occurred while" + "constructing the content length header", OperationFailedException.INTERNAL_ERROR, exc); } Request req; try { req = this.sipProvider .getMessageFactory() .createRequest( toHeader.getAddress().getURI(), Request.MESSAGE, callIdHeader, cSeqHeader, fromHeader, toHeader, viaHeaders, maxForwards, contTypeHeader, message.getRawData()); } catch (ParseException ex) { // shouldn't happen logger.error("Failed to create message Request!", ex); throw new OperationFailedException( "Failed to create message Request!", OperationFailedException.INTERNAL_ERROR, ex); } req.addHeader(contLengthHeader); return req; }