/**
   * Creates an instance of this operation set.
   *
   * @param provider a ref to the <tt>ProtocolProviderServiceImpl</tt> that created us and that
   *     we'll use for retrieving the underlying aim connection.
   */
  OperationSetBasicInstantMessagingSipImpl(ProtocolProviderServiceSipImpl provider) {
    this.sipProvider = provider;

    provider.addRegistrationStateChangeListener(new RegistrationStateListener());

    offlineMessageSupported =
        provider.getAccountID().getAccountPropertyBoolean("OFFLINE_MSG_SUPPORTED", false);

    sipProvider.registerMethodProcessor(
        Request.MESSAGE, new BasicInstantMessagingMethodProcessor());

    this.sipStatusEnum = sipProvider.getSipStatusEnum();
  }
  /**
   * Find the <tt>ProtocolProviderServiceSipImpl</tt> (one of our "candidate recipient" listeners)
   * which this <tt>request</tt> should be dispatched to. The strategy is to look first at the
   * request URI, and then at the To field to find a matching candidate for dispatching. Note that
   * this method takes a <tt>Request</tt> as param, and not a <tt>ServerTransaction</tt>, because
   * sometimes <tt>RequestEvent</tt>s have no associated <tt>ServerTransaction</tt>.
   *
   * @param request the <tt>Request</tt> to find a recipient for.
   * @return a suitable <tt>ProtocolProviderServiceSipImpl</tt>.
   */
  private ProtocolProviderServiceSipImpl findTargetFor(Request request) {
    if (request == null) {
      logger.error("request shouldn't be null.");
      return null;
    }

    List<ProtocolProviderServiceSipImpl> currentListenersCopy =
        new ArrayList<ProtocolProviderServiceSipImpl>(this.getSipListeners());

    // Let's first narrow down candidate choice by comparing
    // addresses and ports (no point in delivering to a provider with a
    // non matching IP address  since they will reject it anyway).
    filterByAddress(currentListenersCopy, request);

    if (currentListenersCopy.size() == 0) {
      logger.error("no listeners");
      return null;
    }

    URI requestURI = request.getRequestURI();

    if (requestURI.isSipURI()) {
      String requestUser = ((SipURI) requestURI).getUser();

      List<ProtocolProviderServiceSipImpl> candidates =
          new ArrayList<ProtocolProviderServiceSipImpl>();

      // check if the Request-URI username is
      // one of ours usernames
      for (ProtocolProviderServiceSipImpl listener : currentListenersCopy) {
        String ourUserID = listener.getAccountID().getUserID();
        // logger.trace(ourUserID + " *** " + requestUser);
        if (ourUserID.equals(requestUser)) {
          if (logger.isTraceEnabled())
            logger.trace("suitable candidate found: " + listener.getAccountID());
          candidates.add(listener);
        }
      }

      // the perfect match
      // every other case is approximation
      if (candidates.size() == 1) {
        ProtocolProviderServiceSipImpl perfectMatch = candidates.get(0);

        if (logger.isTraceEnabled())
          logger.trace("Will dispatch to \"" + perfectMatch.getAccountID() + "\"");
        return perfectMatch;
      }

      // more than one account match
      if (candidates.size() > 1) {
        // check if a custom param exists in the contact
        // address (set for registrar accounts)
        for (ProtocolProviderServiceSipImpl candidate : candidates) {
          String hostValue =
              ((SipURI) requestURI).getParameter(SipStackSharing.CONTACT_ADDRESS_CUSTOM_PARAM_NAME);
          if (hostValue == null) continue;
          if (hostValue.equals(candidate.getContactAddressCustomParamValue())) {
            if (logger.isTraceEnabled())
              logger.trace(
                  "Will dispatch to \""
                      + candidate.getAccountID()
                      + "\" because "
                      + "\" the custom param was set");
            return candidate;
          }
        }

        // Past this point, our guess is not reliable. We try to find
        // the "least worst" match based on parameters like the To field

        // check if the To header field host part
        // matches any of our SIP hosts
        for (ProtocolProviderServiceSipImpl candidate : candidates) {
          URI fromURI = ((FromHeader) request.getHeader(FromHeader.NAME)).getAddress().getURI();
          if (fromURI.isSipURI() == false) continue;
          SipURI ourURI = (SipURI) candidate.getOurSipAddress((SipURI) fromURI).getURI();
          String ourHost = ourURI.getHost();

          URI toURI = ((ToHeader) request.getHeader(ToHeader.NAME)).getAddress().getURI();
          if (toURI.isSipURI() == false) continue;
          String toHost = ((SipURI) toURI).getHost();

          // logger.trace(toHost + "***" + ourHost);
          if (toHost.equals(ourHost)) {
            if (logger.isTraceEnabled())
              logger.trace(
                  "Will dispatch to \""
                      + candidate.getAccountID()
                      + "\" because "
                      + "host in the To: is the same as in our AOR");
            return candidate;
          }
        }

        // fallback on the first candidate
        ProtocolProviderServiceSipImpl target = candidates.iterator().next();
        logger.info(
            "Will randomly dispatch to \""
                + target.getAccountID()
                + "\" because there is ambiguity on the username from"
                + " the Request-URI");
        if (logger.isTraceEnabled()) logger.trace("\n" + request);
        return target;
      }

      // fallback on any account
      ProtocolProviderServiceSipImpl target = currentListenersCopy.iterator().next();
      if (logger.isDebugEnabled())
        logger.debug(
            "Will randomly dispatch to \""
                + target.getAccountID()
                + "\" because the username in the Request-URI "
                + "is unknown or empty");
      if (logger.isTraceEnabled()) logger.trace("\n" + request);
      return target;
    } else {
      logger.error("Request-URI is not a SIP URI, dropping");
    }
    return null;
  }
Exemple #3
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  /**
   * Attach any custom headers pre configured for the account. Added only to message Requests. The
   * header account properties are of form: ConfigHeader.N.Name=HeaderName
   * ConfigHeader.N.Value=HeaderValue ConfigHeader.N.Method=SIP_MethodName (optional) Where N is the
   * index of the header, multiple custom headers can be added. Name is the header name to use and
   * Value is its value. The optional property is whether to use a specific request method to attach
   * headers to or if missing we will attach it to all requests.
   *
   * @param message the message that we'd like to attach custom headers to.
   * @param protocolProvider the protocol provider to check for configured custom headers.
   */
  static void attachConfigHeaders(
      Message message, ProtocolProviderServiceSipImpl protocolProvider) {
    if (message instanceof Response) return;

    Request request = (Request) message;

    Map<String, String> props = protocolProvider.getAccountID().getAccountProperties();

    Map<String, Map<String, String>> headers = new HashMap<String, Map<String, String>>();

    // parse the properties into the map where the index is the key
    for (Map.Entry<String, String> entry : props.entrySet()) {
      String pName = entry.getKey();
      String prefStr = entry.getValue();
      String name;
      String ix;

      if (!pName.startsWith(ACC_PROPERTY_CONFIG_HEADER) || prefStr == null) continue;

      prefStr = prefStr.trim();

      if (pName.contains(".")) {
        pName = pName.replaceAll(ACC_PROPERTY_CONFIG_HEADER + ".", "");
        name = pName.substring(pName.lastIndexOf('.') + 1).trim();

        if (!pName.contains(".")) continue;

        ix = pName.substring(0, pName.lastIndexOf('.')).trim();
      } else continue;

      Map<String, String> headerValues = headers.get(ix);

      if (headerValues == null) {
        headerValues = new HashMap<String, String>();
        headers.put(ix, headerValues);
      }

      headerValues.put(name, prefStr);
    }

    // process the found custom headers
    for (Map<String, String> headerValues : headers.values()) {
      String method = headerValues.get(ACC_PROPERTY_CONFIG_HEADER_METHOD);

      // if there is a method setting and is different from
      // current request method skip this header
      // if any of the required properties are missing skip (Name & Value)
      if ((method != null && !request.getMethod().equalsIgnoreCase(method))
          || !headerValues.containsKey(ACC_PROPERTY_CONFIG_HEADER_NAME)
          || !headerValues.containsKey(ACC_PROPERTY_CONFIG_HEADER_VALUE)) continue;

      try {
        String name = headerValues.get(ACC_PROPERTY_CONFIG_HEADER_NAME);
        String value = processParams(headerValues.get(ACC_PROPERTY_CONFIG_HEADER_VALUE), request);

        Header h = request.getHeader(name);

        // makes possible overriding already created headers which
        // are not custom one
        // RouteHeader is used by ProxyRouter/DefaultRouter and we
        // cannot use it as custom header if we want to add it
        if ((h != null && !(h instanceof CustomHeader)) || name.equals(SIPHeaderNames.ROUTE)) {
          request.setHeader(protocolProvider.getHeaderFactory().createHeader(name, value));
        } else request.addHeader(new CustomHeaderList(name, value));
      } catch (Exception e) {
        logger.error("Cannot create custom header", e);
      }
    }
  }