Exemplo n.º 1
0
  /**
   * Receives options requests and replies with an OK response containing methods that we support.
   *
   * @param requestEvent the incoming options request.
   * @return <tt>true</tt> if request has been successfully processed, <tt>false</tt> otherwise
   */
  @Override
  public boolean processRequest(RequestEvent requestEvent) {
    Response optionsOK = null;
    try {
      optionsOK =
          provider.getMessageFactory().createResponse(Response.OK, requestEvent.getRequest());

      // add to the allows header all methods that we support
      for (String method : provider.getSupportedMethods()) {
        // don't support REGISTERs
        if (!method.equals(Request.REGISTER))
          optionsOK.addHeader(provider.getHeaderFactory().createAllowHeader(method));
      }

      Iterable<String> knownEventsList = provider.getKnownEventsList();

      synchronized (knownEventsList) {
        for (String event : knownEventsList)
          optionsOK.addHeader(provider.getHeaderFactory().createAllowEventsHeader(event));
      }
    } catch (ParseException ex) {
      // What else could we do apart from logging?
      logger.warn("Failed to create an incoming OPTIONS request", ex);
      return false;
    }

    try {
      SipStackSharing.getOrCreateServerTransaction(requestEvent).sendResponse(optionsOK);
    } catch (TransactionUnavailableException ex) {
      // this means that we received an OPTIONS request outside the scope
      // of a transaction which could mean that someone is simply sending
      // us b****hit to keep a NAT connection alive, so let's not get too
      // excited.
      if (logger.isInfoEnabled())
        logger.info("Failed to respond to an incoming " + "transactionless OPTIONS request");
      if (logger.isTraceEnabled()) logger.trace("Exception was:", ex);
      return false;
    } catch (InvalidArgumentException ex) {
      // What else could we do apart from logging?
      logger.warn("Failed to send an incoming OPTIONS request", ex);
      return false;
    } catch (SipException ex) {
      // What else could we do apart from logging?
      logger.warn("Failed to send an incoming OPTIONS request", ex);
      return false;
    }

    return true;
  }
    /**
     * Process a request from a distant contact
     *
     * @param requestEvent the <tt>RequestEvent</tt> containing the newly received request.
     * @return <tt>true</tt> if the specified event has been handled by this processor and shouldn't
     *     be offered to other processors registered for the same method; <tt>false</tt>, otherwise
     */
    @Override
    public boolean processRequest(RequestEvent requestEvent) {
      synchronized (messageProcessors) {
        for (SipMessageProcessor listener : messageProcessors)
          if (!listener.processMessage(requestEvent)) return true;
      }

      // get the content
      String content = null;
      Request req = requestEvent.getRequest();
      try {

        content = new String(req.getRawContent(), getCharset(req));
      } catch (UnsupportedEncodingException ex) {
        if (logger.isDebugEnabled()) logger.debug("failed to convert the message charset");
        content = new String(requestEvent.getRequest().getRawContent());
      }

      // who sent this request ?
      FromHeader fromHeader = (FromHeader) requestEvent.getRequest().getHeader(FromHeader.NAME);

      if (fromHeader == null) {
        logger.error("received a request without a from header");
        return false;
      }

      Contact from =
          opSetPersPresence.resolveContactID(fromHeader.getAddress().getURI().toString());

      ContentTypeHeader ctheader = (ContentTypeHeader) req.getHeader(ContentTypeHeader.NAME);

      String ctype = null;
      String cencoding = null;

      if (ctheader == null) {
        ctype = DEFAULT_MIME_TYPE;
      } else {
        ctype = ctheader.getContentType() + "/" + ctheader.getContentSubType();
        cencoding = ctheader.getParameter("charset");
      }

      if (cencoding == null) cencoding = DEFAULT_MIME_ENCODING;

      Message newMessage = createMessage(content, ctype, cencoding, null);

      if (from == null) {
        if (logger.isDebugEnabled())
          logger.debug(
              "received a message from an unknown contact: "
                  + fromHeader.getAddress().getURI().toString());
        // create the volatile contact
        from = opSetPersPresence.createVolatileContact(fromHeader.getAddress().getURI().toString());
      }

      // answer ok
      try {
        Response ok =
            sipProvider.getMessageFactory().createResponse(Response.OK, requestEvent.getRequest());
        SipStackSharing.getOrCreateServerTransaction(requestEvent).sendResponse(ok);
      } catch (ParseException exc) {
        logger.error("failed to build the response", exc);
      } catch (SipException exc) {
        logger.error("failed to send the response : " + exc.getMessage(), exc);
      } catch (InvalidArgumentException exc) {
        if (logger.isDebugEnabled())
          logger.debug("Invalid argument for createResponse : " + exc.getMessage(), exc);
      }

      // fire an event
      MessageReceivedEvent msgReceivedEvt =
          new MessageReceivedEvent(newMessage, from, System.currentTimeMillis());
      fireMessageEvent(msgReceivedEvt);

      return true;
    }