@Override
  protected void doSuccessResponse(SipServletResponse resp) throws ServletException, IOException {
    logger.info("Got OK");
    SipSession session = resp.getSession();

    if (resp.getStatus() == SipServletResponse.SC_OK) {

      Boolean inviteSent = (Boolean) session.getAttribute("InviteSent");
      if (inviteSent != null && inviteSent.booleanValue()) {
        return;
      }
      Address secondPartyAddress = (Address) resp.getSession().getAttribute("SecondPartyAddress");
      if (secondPartyAddress != null) {

        SipServletRequest invite =
            sipFactory.createRequest(
                resp.getApplicationSession(),
                "INVITE",
                session.getRemoteParty(),
                secondPartyAddress);

        logger.info("Found second party -- sending INVITE to " + secondPartyAddress);

        String contentType = resp.getContentType();
        if (contentType.trim().equals("application/sdp")) {
          invite.setContent(resp.getContent(), "application/sdp");
        }

        session.setAttribute("LinkedSession", invite.getSession());
        invite.getSession().setAttribute("LinkedSession", session);

        SipServletRequest ack = resp.createAck();
        invite.getSession().setAttribute("FirstPartyAck", ack);
        invite.getSession().setAttribute("FirstPartyContent", resp.getContent());

        Call call = (Call) session.getAttribute("call");

        // The call links the two sessions, add the new session to the call
        call.addSession(invite.getSession());
        invite.getSession().setAttribute("call", call);

        invite.send();

        session.setAttribute("InviteSent", Boolean.TRUE);
      } else {
        String cSeqValue = resp.getHeader("CSeq");
        if (cSeqValue.indexOf("INVITE") != -1) {
          logger.info("Got OK from second party -- sending ACK");

          SipServletRequest secondPartyAck = resp.createAck();
          SipServletRequest firstPartyAck =
              (SipServletRequest) resp.getSession().getAttribute("FirstPartyAck");

          //					if (resp.getContentType() != null &&
          // resp.getContentType().equals("application/sdp")) {
          firstPartyAck.setContent(resp.getContent(), "application/sdp");
          secondPartyAck.setContent(
              resp.getSession().getAttribute("FirstPartyContent"), "application/sdp");
          //					}

          firstPartyAck.send();
          secondPartyAck.send();
        }
      }
    }
  }
Exemple #2
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  /**
   * @param request
   * @param client
   * @param toClient
   * @throws IOException
   */
  public static boolean redirectToB2BUA(
      final SipServletRequest request,
      final Client client,
      Client toClient,
      DaoManager storage,
      SipFactory sipFactory)
      throws IOException {
    request.getSession().setAttribute("lastRequest", request);
    if (logger.isInfoEnabled()) {
      logger.info("B2BUA (p2p proxy): Got request:\n" + request.getMethod());
      logger.info(
          String.format(
              "B2BUA: Proxying a session between %s and %s", client.getUri(), toClient.getUri()));
    }

    if (daoManager == null) {
      daoManager = storage;
    }

    String user = ((SipURI) request.getTo().getURI()).getUser();

    final RegistrationsDao registrations = daoManager.getRegistrationsDao();
    final Registration registration = registrations.getRegistration(user);
    if (registration != null) {
      final String location = registration.getLocation();
      SipURI to;
      SipURI from;
      try {
        to = (SipURI) sipFactory.createURI(location);
        from =
            (SipURI)
                sipFactory.createURI(
                    (registrations.getRegistration(client.getLogin())).getLocation());

        final SipSession incomingSession = request.getSession();
        // create and send the outgoing invite and do the session linking
        incomingSession.setAttribute(B2BUA_LAST_REQUEST, request);
        SipServletRequest outRequest =
            sipFactory.createRequest(
                request.getApplicationSession(),
                request.getMethod(),
                request.getFrom().getURI(),
                request.getTo().getURI());
        outRequest.setRequestURI(to);

        if (request.getContent() != null) {
          final byte[] sdp = request.getRawContent();
          String offer = null;
          if (request.getContentType().equalsIgnoreCase("application/sdp")) {
            // Issue 308: https://telestax.atlassian.net/browse/RESTCOMM-308
            String externalIp = request.getInitialRemoteAddr();
            // Issue 306: https://telestax.atlassian.net/browse/RESTCOMM-306
            final String initialIpBeforeLB = request.getHeader("X-Sip-Balancer-InitialRemoteAddr");
            try {
              if (initialIpBeforeLB != null && !initialIpBeforeLB.isEmpty()) {
                offer = patch(sdp, initialIpBeforeLB);
              } else {
                offer = patch(sdp, externalIp);
              }
            } catch (SdpException e) {
              logger.error("Unexpected exception while patching sdp ", e);
            }
          }
          if (offer != null) {
            outRequest.setContent(offer, request.getContentType());
          } else {
            outRequest.setContent(sdp, request.getContentType());
          }
        }

        final SipSession outgoingSession = outRequest.getSession();
        if (request.isInitial()) {
          incomingSession.setAttribute(B2BUA_LINKED_SESSION, outgoingSession);
          outgoingSession.setAttribute(B2BUA_LINKED_SESSION, incomingSession);
        }
        outgoingSession.setAttribute(B2BUA_LAST_REQUEST, outRequest);
        request.createResponse(100).send();
        // Issue #307: https://telestax.atlassian.net/browse/RESTCOMM-307
        request.getSession().setAttribute("toInetUri", to);
        outRequest.send();
        outRequest.getSession().setAttribute("fromInetUri", from);

        final CallDetailRecord.Builder builder = CallDetailRecord.builder();
        builder.setSid(Sid.generate(Sid.Type.CALL));
        builder.setDateCreated(DateTime.now());
        builder.setAccountSid(client.getAccountSid());
        builder.setTo(toClient.getFriendlyName());
        builder.setCallerName(client.getFriendlyName());
        builder.setFrom(client.getFriendlyName());
        // builder.setForwardedFrom(callInfo.forwardedFrom());
        // builder.setPhoneNumberSid(phoneId);
        builder.setStatus(CallStateChanged.State.QUEUED.name());
        builder.setDirection("Client-To-Client");
        builder.setApiVersion(client.getApiVersion());
        builder.setPrice(new BigDecimal("0.00"));
        // TODO implement currency property to be read from Configuration
        builder.setPriceUnit(Currency.getInstance("USD"));
        final StringBuilder buffer = new StringBuilder();
        buffer.append("/").append(client.getApiVersion()).append("/Accounts/");
        buffer.append(client.getAccountSid().toString()).append("/Calls/");
        buffer.append(client.getSid().toString());
        final URI uri = URI.create(buffer.toString());
        builder.setUri(uri);

        CallDetailRecordsDao records = daoManager.getCallDetailRecordsDao();
        CallDetailRecord callRecord = builder.build();
        records.addCallDetailRecord(callRecord);

        incomingSession.setAttribute(CDR_SID, callRecord.getSid());
        outgoingSession.setAttribute(CDR_SID, callRecord.getSid());

        return true; // successfully proxied the SIP request between two registered clients
      } catch (ServletParseException badUriEx) {
        if (logger.isInfoEnabled()) {
          logger.info(
              String.format("B2BUA: Error parsing Client Contact URI: %s", location), badUriEx);
        }
      }
    }
    return false;
  }