예제 #1
0
  /** Exit the proxy, throws Exception that which can be caught by the upper application */
  public void exit() throws Exception {
    Iterator sipProviders = sipStack.getSipProviders();
    if (sipProviders != null) {
      while (sipProviders.hasNext()) {
        SipProvider sp = (SipProvider) sipProviders.next();
        sp.removeSipListener(this);
        sipStack.deleteSipProvider(sp);
        sipProviders = sipStack.getSipProviders();
        System.out.println("One sip Provider removed!");
      }
    } else {
      ProxyDebug.println("WARNING, STOP_PROXY, The proxy " + " has no sip Provider to remove!");
    }

    Iterator listeningPoints = sipStack.getListeningPoints();
    if (listeningPoints != null) {
      while (listeningPoints.hasNext()) {
        ListeningPoint lp = (ListeningPoint) listeningPoints.next();
        sipStack.deleteListeningPoint(lp);
        listeningPoints = sipStack.getListeningPoints();
        System.out.println("One listening point removed!");
      }
    } else {
      ProxyDebug.println("WARNING, STOP_PROXY, The proxy " + " has no listening points to remove!");
    }
    ProxyDebug.println("Proxy exit.........................");
    configuration.listeningPoints.clear();
    registrar.clean();
  }
예제 #2
0
  /**
   * Stop the proxy, this method has to be called after the start method throws Exception that which
   * can be caught by the upper application
   */
  public void stop() throws Exception {
    if (sipStack == null) return;
    this.presenceServer.stop();

    Iterator sipProviders = sipStack.getSipProviders();
    if (sipProviders != null) {
      while (sipProviders.hasNext()) {
        SipProvider sp = (SipProvider) sipProviders.next();
        sp.removeSipListener(this);
        sipStack.deleteSipProvider(sp);
        sipProviders = sipStack.getSipProviders();
        System.out.println("One sip Provider removed!");
      }
    } else {
      ProxyDebug.println("WARNING, STOP_PROXY, The proxy " + " has no sip Provider to remove!");
    }

    Iterator listeningPoints = sipStack.getListeningPoints();
    if (listeningPoints != null) {
      while (listeningPoints.hasNext()) {
        ListeningPoint lp = (ListeningPoint) listeningPoints.next();
        sipStack.deleteListeningPoint(lp);
        listeningPoints = sipStack.getListeningPoints();
        System.out.println("One listening point removed!");
      }
    } else {
      ProxyDebug.println("WARNING, STOP_PROXY, The proxy " + " has no listening points to remove!");
    }
    registrar.clean();
  }
예제 #3
0
 /** JAIN Listener method. */
 public void processTimeout(TimeoutEvent timeOutEvent) {
   ProxyDebug.println("TimeoutEvent received");
   SipProvider sipProvider = (SipProvider) timeOutEvent.getSource();
   TransactionsMapping transactionsMapping = null;
   if (timeOutEvent.isServerTransaction()) {
     ServerTransaction serverTransaction = timeOutEvent.getServerTransaction();
     Dialog dialog = serverTransaction.getDialog();
     if (dialog != null) {
       transactionsMapping = (TransactionsMapping) dialog.getApplicationData();
       transactionsMapping.removeMapping(serverTransaction);
     }
   } else {
     ClientTransaction clientTransaction = timeOutEvent.getClientTransaction();
     Dialog dialog = clientTransaction.getDialog();
     ServerTransaction st = null;
     if (dialog != null) {
       transactionsMapping = (TransactionsMapping) dialog.getApplicationData();
       if (transactionsMapping != null) {
         st = transactionsMapping.getServerTransaction(clientTransaction);
       }
       if (st == null) {
         ProxyDebug.println(
             "ERROR, Unable to retrieve the server transaction," + " cannot process timeout!");
         return;
       }
     } else {
       ProxyDebug.println(
           "ERROR, Unable to retrieve the transaction Mapping," + " cannot process timeout!");
       return;
     }
     Request request = st.getRequest();
     // This removes the given mapping from the table but not
     // necessarily the whole thing.
     transactionsMapping.removeMapping(clientTransaction);
     if (!transactionsMapping.hasMapping(st)) {
       // No more mappings left in the transaction table.
       try {
         Response response = messageFactory.createResponse(Response.REQUEST_TIMEOUT, request);
         st.sendResponse(response);
       } catch (ParseException ex) {
         ex.printStackTrace();
       } catch (SipException ex1) {
         ex1.printStackTrace();
       }
     }
   }
 }
 /** Default constructor. */
 public DigestServerAuthenticationMethod() {
   try {
     messageDigest = MessageDigest.getInstance(DEFAULT_ALGORITHM);
   } catch (NoSuchAlgorithmException ex) {
     ProxyDebug.println("Algorithm not found " + ex);
     ex.printStackTrace();
   }
   passwordTable = new Hashtable();
 }
  /**
   * Initialize -- load password files etc. Password file format is name:authentication
   * domain:password
   *
   * @param pwFileName is the password file name.
   * @param Exception is thrown when the password file is bad.
   */
  public void initialize(String pwFileName) {
    try {
      XMLAuthenticationParser parser = new XMLAuthenticationParser(pwFileName);

      String def = parser.getRealm();
      if (def != null) DEFAULT_REALM = def;
      ProxyDebug.println(
          "DEBUG, DigestAuthenticationMethod, initialize()," + " the realm is:" + DEFAULT_REALM);
      Vector usersTagList = parser.getUsersTagList();
      if (usersTagList != null)
        for (int i = 0; i < usersTagList.size(); i++) {
          UserTag userTag = (UserTag) usersTagList.elementAt(i);
          String userName = userTag.getUserName();
          // String userRealm=userTag.getUserRealm();
          String userPassword = userTag.getUserPassword();
          if (userName != null) {

            if (userPassword == null) {
              ProxyDebug.println(
                  "DEBUG, DigestAuthenticationMethod, initialize(),"
                      + " the userPassword parameter does not exist for user: "******", we use the default: \""
                      + NULL_PASSWORD
                      + "\"");
              userPassword = NULL_PASSWORD;
            }
            passwordTable.put(userName + "@" + DEFAULT_REALM, userPassword);
          } else {
            ProxyDebug.println(
                "DEBUG, DigestAuthenticationMethod, initialize(),"
                    + " the userName parameter does not exist, we skip this entry!!");
          }
        }
      else
        ProxyDebug.println(
            "DEBUG, DigestAuthenticationMethod, initialize(),"
                + "Error during parsing the passwords file!");

    } catch (Exception e) {
      ProxyDebug.println("ERROR, DigestAuthenticationMethod, initialize()," + "exception raised:");
      e.printStackTrace();
    }
  }
예제 #6
0
  /** This is a listener method. */
  public void processResponse(ResponseEvent responseEvent) {
    try {

      Response response = responseEvent.getResponse();
      SipProvider sipProvider = (SipProvider) responseEvent.getSource();
      ClientTransaction clientTransaction = responseEvent.getClientTransaction();

      ProxyDebug.println(
          "\n***************************************************************"
              + "\n***************************************************************"
              + "\nResponse "
              + response.getStatusCode()
              + " "
              + response.getReasonPhrase()
              + " received:\n"
              + response.toString());
      ProxyDebug.println("Processing Response in progress");

      if (ProxyDebug.debug) ProxyUtilities.printTransaction(clientTransaction);

      // Henrik - added handling of responses addressed to server
      // If we use a presenceserver, and if statuscode was OK...
      CSeqHeader cseqHeader = (CSeqHeader) response.getHeader(CSeqHeader.NAME);

      if (cseqHeader.getMethod().equals("SUBSCRIBE")) {
        presenceServer.processSubscribeResponse((Response) response.clone(), clientTransaction);
      } else if (cseqHeader.getMethod().equals("NOTIFY")) {
        // presenceServer.processNotifyResponse((Response)response.clone(),
        // clientTransaction);
      }

      responseForwarding.forwardResponse(sipProvider, response, clientTransaction);

    } catch (Exception ex) {
      if (ProxyDebug.debug) {
        ProxyDebug.println("Proxy, processResponse(), internal error, " + "exception raised:");
        ProxyDebug.logException(ex);
      }
    }
  }
예제 #7
0
  /** ********************************************************************* */
  public static void main(String args[]) {
    try {
      // the Proxy:
      if (args.length == 0) {
        System.out.println("Config file missing!");
        System.exit(0);
      }

      System.out.println("Using configuration file " + args[1]);
      String confFile = (String) args[1];
      Proxy proxy = new Proxy(confFile);
      proxy.start();
      ProxyDebug.println("Proxy ready to work");
    } catch (Exception e) {
      System.out.println(
          "ERROR: Set the configuration file flag: " + "USE: -cf configuration_file_location.xml");
      System.out.println("ERROR, the proxy can not be started, " + " exception raised:\n");
      e.printStackTrace();
    }
  }
  /**
   * Check the response and answer true if authentication succeeds. We are making simplifying
   * assumptions here and assuming that the password is available to us for computation of the MD5
   * hash. We also dont cache authentications so that the user has to authenticate on each
   * registration.
   *
   * @param user is the username
   * @param authHeader is the Authroization header from the SIP request.
   * @param requestLine is the SIP Request line from the SIP request.
   * @exception SIPAuthenticationException is thrown when authentication fails or message is bad
   */
  public boolean doAuthenticate(String user, AuthorizationHeader authHeader, Request request) {
    String realm = authHeader.getRealm();
    String username = authHeader.getUsername();
    URI requestURI = request.getRequestURI();

    if (username == null) {
      ProxyDebug.println(
          "DEBUG, DigestAuthenticateMethod, doAuthenticate(): "
              + "WARNING: userName parameter not set in the header received!!!");
      username = user;
    }
    if (realm == null) {
      ProxyDebug.println(
          "DEBUG, DigestAuthenticateMethod, doAuthenticate(): "
              + "WARNING: realm parameter not set in the header received!!! WE use the default one");
      realm = DEFAULT_REALM;
    }

    ProxyDebug.println(
        "DEBUG, DigestAuthenticateMethod, doAuthenticate(): "
            + "Trying to authenticate user: "******" for "
            + " the realm: "
            + realm);

    String password = (String) passwordTable.get(username + "@" + realm);
    if (password == null) {
      ProxyDebug.println(
          "DEBUG, DigestAuthenticateMethod, doAuthenticate(): "
              + "ERROR: password not found for the user: "******"@"
              + realm);
      return false;
    }

    String nonce = authHeader.getNonce();
    // If there is a URI parameter in the Authorization header,
    // then use it.
    URI uri = authHeader.getURI();
    // There must be a URI parameter in the authorization header.
    if (uri == null) {
      ProxyDebug.println(
          "DEBUG, DigestAuthenticateMethod, doAuthenticate(): "
              + "ERROR: uri paramater not set in the header received!");
      return false;
    }

    ProxyDebug.println(
        "DEBUG, DigestAuthenticationMethod, doAuthenticate(), username:"******"!");
    ProxyDebug.println("DEBUG, DigestAuthenticationMethod, doAuthenticate(), realm:" + realm + "!");
    ProxyDebug.println(
        "DEBUG, DigestAuthenticationMethod, doAuthenticate(), password:"******"!");
    ProxyDebug.println("DEBUG, DigestAuthenticationMethod, doAuthenticate(), uri:" + uri + "!");
    ProxyDebug.println("DEBUG, DigestAuthenticationMethod, doAuthenticate(), nonce:" + nonce + "!");
    ProxyDebug.println(
        "DEBUG, DigestAuthenticationMethod, doAuthenticate(), method:" + request.getMethod() + "!");

    String A1 = username + ":" + realm + ":" + password;
    String A2 = request.getMethod().toUpperCase() + ":" + uri.toString();
    byte mdbytes[] = messageDigest.digest(A1.getBytes());
    String HA1 = ProxyUtilities.toHexString(mdbytes);

    ProxyDebug.println("DEBUG, DigestAuthenticationMethod, doAuthenticate(), HA1:" + HA1 + "!");
    mdbytes = messageDigest.digest(A2.getBytes());
    String HA2 = ProxyUtilities.toHexString(mdbytes);
    ProxyDebug.println("DEBUG, DigestAuthenticationMethod, doAuthenticate(), HA2:" + HA2 + "!");
    String cnonce = authHeader.getCNonce();
    String KD = HA1 + ":" + nonce;
    if (cnonce != null) {
      KD += ":" + cnonce;
    }
    KD += ":" + HA2;
    mdbytes = messageDigest.digest(KD.getBytes());
    String mdString = ProxyUtilities.toHexString(mdbytes);
    String response = authHeader.getResponse();
    ProxyDebug.println(
        "DEBUG, DigestAuthenticateMethod, doAuthenticate(): "
            + "we have to compare his response: "
            + response
            + " with our computed"
            + " response: "
            + mdString);

    int res = (mdString.compareTo(response));
    if (res == 0) {
      ProxyDebug.println(
          "DEBUG, DigestAuthenticateMethod, doAuthenticate(): " + "User authenticated...");
    } else {
      ProxyDebug.println(
          "DEBUG, DigestAuthenticateMethod, doAuthenticate(): " + "User not authenticated...");
    }

    return res == 0;
  }
예제 #9
0
  /**
   * Start the proxy, this method has to be called after the init method throws Exception that which
   * can be caught by the upper application
   */
  public void start() throws Exception {
    if (configuration != null && configuration.isValidConfiguration()) {
      Properties properties = new Properties();
      // LOGGING property:

      if (configuration.enableDebug) {
        ProxyDebug.debug = true;
        ProxyDebug.setProxyOutputFile(configuration.outputProxy);
        ProxyDebug.println("DEBUG properties set!");
        if (configuration.badMessageLogFile != null)
          properties.setProperty(
              "gov.nist.javax.sip.BAD_MESSAGE_LOG", configuration.badMessageLogFile);
        if (configuration.debugLogFile != null) {
          properties.setProperty("gov.nist.javax.sip.DEBUG_LOG", configuration.debugLogFile);
        }
        if (configuration.serverLogFile != null)
          properties.setProperty("gov.nist.javax.sip.SERVER_LOG", configuration.serverLogFile);
        if (configuration.debugLogFile != null)
          properties.setProperty("gov.nist.javax.sip.TRACE_LEVEL", "32");
        else if (configuration.serverLogFile != null)
          properties.setProperty("gov.nist.javax.sip.TRACE_LEVEL", "16");
        else properties.setProperty("gov.nist.javax.sip.TRACE_LEVEL", "0");

      } else {
        System.out.println("DEBUG properties not set!");
      }
      registrar.setExpiresTime(configuration.expiresTime);

      // STOP TIME
      if (configuration.stopTime != null) {
        try {
          long stopTime = Long.parseLong(configuration.stopTime);
          StopProxy stopProxy = new StopProxy(this);
          Timer timer = new Timer();
          timer.schedule(stopProxy, stopTime);
        } catch (Exception e) {
          e.printStackTrace();
        }
      }

      sipStack = null;

      SipFactory sipFactory = SipFactory.getInstance();
      sipFactory.setPathName("gov.nist");

      headerFactory = sipFactory.createHeaderFactory();
      addressFactory = sipFactory.createAddressFactory();
      messageFactory = sipFactory.createMessageFactory();

      // Create SipStack object

      properties.setProperty("javax.sip.IP_ADDRESS", configuration.stackIPAddress);

      // We have to add the IP address of the proxy for the domain:
      configuration.domainList.addElement(configuration.stackIPAddress);
      ProxyDebug.println("The proxy is responsible for the domain:" + configuration.stackIPAddress);

      properties.setProperty("javax.sip.STACK_NAME", configuration.stackName);
      if (configuration.check(configuration.outboundProxy))
        properties.setProperty("javax.sip.OUTBOUND_PROXY", configuration.outboundProxy);
      if (configuration.check(configuration.routerPath))
        properties.setProperty("javax.sip.ROUTER_PATH", configuration.routerPath);
      if (configuration.check(configuration.extensionMethods))
        properties.setProperty("javax.sip.EXTENSION_METHODS", configuration.extensionMethods);
      // This has to be hardcoded to true. for the proxy.
      properties.setProperty("javax.sip.RETRANSMISSION_FILTER", "on");

      if (configuration.check(configuration.maxConnections))
        properties.setProperty("gov.nist.javax.sip.MAX_CONNECTIONS", configuration.maxConnections);
      if (configuration.check(configuration.maxServerTransactions))
        properties.setProperty(
            "gov.nist.javax.sip.MAX_SERVER_TRANSACTIONS", configuration.maxServerTransactions);
      if (configuration.check(configuration.threadPoolSize))
        properties.setProperty("gov.nist.javax.sip.THREAD_POOL_SIZE", configuration.threadPoolSize);

      if (configuration.domainList != null)
        for (int j = 0; j < configuration.domainList.size(); j++) {
          String domain = (String) configuration.domainList.elementAt(j);
          ProxyDebug.println("Here is one domain to take care of:" + domain);
        }
      else ProxyDebug.println("No domain to take care of...");

      if (configuration.accessLogViaRMI) {
        properties.setProperty("gov.nist.javax.sip.ACCESS_LOG_VIA_RMI", "true");

        properties.setProperty("gov.nist.javax.sip.RMI_PORT", configuration.logRMIPort);

        if (configuration.check(configuration.logLifetime))
          properties.setProperty("gov.nist.javax.sip.LOG_LIFETIME", configuration.logLifetime);
      }

      sipStack = sipFactory.createSipStack(properties);

      // Authentication part:
      if (configuration.enableAuthentication) {
        authentication = new Authentication(this);
        try {

          Class authMethodClass = Class.forName(configuration.classFile);
          AuthenticationMethod authMethod = (AuthenticationMethod) authMethodClass.newInstance();
          authMethod.initialize(configuration.passwordsFile);

          authentication.setAuthenticationMethod(authMethod);

        } catch (Exception e) {
          ProxyDebug.println("ERROR, authentication process stopped, exception raised:");
          e.printStackTrace();
        }
      }

      // We create the Listening points:
      Vector lps = configuration.getListeningPoints();

      for (int i = 0; lps != null && i < lps.size(); i++) {
        Association a = (Association) lps.elementAt(i);
        try {
          System.out.println("transport  " + a.transport);
          System.out.println("port  " + Integer.valueOf(a.port).intValue());
          ListeningPoint lp =
              sipStack.createListeningPoint(Integer.valueOf(a.port).intValue(), a.transport);
          this.listeningPoints.add(lp);
          SipProvider sipProvider = sipStack.createSipProvider(lp);
          if (this.defaultProvider == null) this.defaultProvider = sipProvider;
          sipProvider.addSipListener(this);
        } catch (Exception e) {
          e.printStackTrace();
          ProxyDebug.println("ERROR: listening point not created ");
        }
      }
      // Export the registry for polling by the responder.

      if (configuration.exportRegistry)
        // initialize the registrar for RMI.
        this.registrar.initRMIBindings();

      // Parse static configuration for registrar.
      if (configuration.enableRegistrations) {
        String value = configuration.registrationsFile;
        ProxyDebug.println("Parsing the XML registrations file: " + value);
        if (value == null || value.trim().equals(""))
          ProxyDebug.println("You have to set the registrations file...");
        else registrar.parseXMLregistrations(value);
      } else ProxyDebug.println("No registrations to parse...");

      // Register to proxies if any:
      registrar.registerToProxies();

    } else {
      System.out.println(
          "ERROR: the configuration file is not correct!" + " Correct the errors first.");
    }
  }
예제 #10
0
  /** This is a listener method. */
  public void processRequest(RequestEvent requestEvent) {
    Request request = requestEvent.getRequest();
    SipProvider sipProvider = (SipProvider) requestEvent.getSource();
    ServerTransaction serverTransaction = requestEvent.getServerTransaction();
    try {

      if (ProxyDebug.debug)
        ProxyDebug.println(
            "\n****************************************************"
                + "\nRequest "
                + request.getMethod()
                + " received:\n"
                + request.toString());

      if (ProxyDebug.debug) ProxyUtilities.printTransaction(serverTransaction);

      /** **************************************************************************** */
      /** ********************* PROXY BEHAVIOR *********************************** */
      /** **************************************************************************** */

      /*
       * RFC 3261: 16.2: For all new requests, including any with unknown
       * methods, an element intending to proxy the request MUST:
       *
       * 1. Validate the request (Section 16.3)
       *
       * 2. Preprocess routing information (Section 16.4)
       *
       * 3. Determine target(s) for the request (Section 16.5)
       *
       * 4. Forward the request to each target (Section 16.6)
       *
       * 5. Process all responses (Section 16.7)
       */

      /** **************************************************************************** */
      /** *************************** 1. Validate the request (Section 16.3) ********* */
      /** **************************************************************************** */

      /*
       * Before an element can proxy a request, it MUST verify the
       * message's validity
       */

      RequestValidation requestValidation = new RequestValidation(this);
      if (!requestValidation.validateRequest(sipProvider, request, serverTransaction)) {
        // An appropriate response has been sent back by the request
        // validation step, so we just return. The request has been
        // processed!
        if (ProxyDebug.debug)
          ProxyDebug.println(
              "Proxy, processRequest(), the request has not been"
                  + " validated, so the request is discarded "
                  + " (an error code has normally been"
                  + " sent back)");
        return;
      }

      // Let's check if the ACK is for the proxy: if there is no Route
      // header: it is mandatory for the ACK to be forwarded
      if (request.getMethod().equals(Request.ACK)) {
        ListIterator routes = request.getHeaders(RouteHeader.NAME);

        if (routes == null || !routes.hasNext()) {
          if (ProxyDebug.debug)
            ProxyDebug.println(
                "Proxy, processRequest(), "
                    + "the request is an ACK"
                    + " targeted for the proxy, we ignore it");
          return;
        }
        /* added code */
        CallID call_id = (CallID) request.getHeader(CallID.CALL_ID);
        String call_id_str = call_id.getCallId();
        TimeThreadController.Start(call_id_str);
        /* end of added code */

      }

      if (serverTransaction == null) {
        String method = request.getMethod();
        // Methods that creates dialogs, so that can
        // generate transactions
        if (method.equals(Request.INVITE) || method.equals(Request.SUBSCRIBE)) {
          try {
            serverTransaction = sipProvider.getNewServerTransaction(request);
            TransactionsMapping transactionsMapping =
                (TransactionsMapping) serverTransaction.getDialog().getApplicationData();
            if (transactionsMapping == null) {
              transactionsMapping = new TransactionsMapping(serverTransaction);
            }
          } catch (TransactionAlreadyExistsException e) {
            if (ProxyDebug.debug)
              ProxyDebug.println(
                  "Proxy, processRequest(), this request" + " is a retransmission, we drop it!");
          }
        }
      }

      /** ************************************************************************ */
      /** **** 2. Preprocess routing information (Section 16.4) ****************** */
      /** ************************************************************************ */

      /*
       * The proxy MUST inspect the Request-URI of the request. If the
       * Request-URI of the request contains a value this proxy previously
       * placed into a Record-Route header field (see Section 16.6 item
       * 4), the proxy MUST replace the Request-URI in the request with
       * the last value from the Route header field, and remove that value
       * from the Route header field. The proxy MUST then proceed as if it
       * received this modified request. ..... (idem to below:) 16.12. The
       * proxy will inspect the URI in the topmost Route header field
       * value. If it indicates this proxy, the proxy removes it from the
       * Route header field (this route node has been reached).
       */

      ListIterator routes = request.getHeaders(RouteHeader.NAME);
      if (routes != null) {
        if (routes.hasNext()) {
          RouteHeader routeHeader = (RouteHeader) routes.next();
          Address routeAddress = routeHeader.getAddress();
          SipURI routeSipURI = (SipURI) routeAddress.getURI();

          String host = routeSipURI.getHost();
          int port = routeSipURI.getPort();

          if (sipStack.getIPAddress().equals(host)) {
            Iterator lps = sipStack.getListeningPoints();
            while (lps != null && lps.hasNext()) {
              ListeningPoint lp = (ListeningPoint) lps.next();
              if (lp.getPort() == port) {
                if (ProxyDebug.debug)
                  ProxyDebug.println(
                      "Proxy, processRequest(),"
                          + " we remove the first route form "
                          + " the RouteHeader;"
                          + " it matches the proxy");
                routes.remove();
                break;
              }
            }
          }
        }
      }

      /*
       * If the Request-URI contains a maddr parameter, the proxy MUST
       * check to see if its value is in the set of addresses or domains
       * the proxy is configured to be responsible for. If the Request-URI
       * has a maddr parameter with a value the proxy is responsible for,
       * and the request was received using the port and transport
       * indicated (explicitly or by default) in the Request-URI, the
       * proxy MUST strip the maddr and any non-default port or transport
       * parameter and continue processing as if those values had not been
       * present in the request.
       */

      URI requestURI = request.getRequestURI();
      if (requestURI.isSipURI()) {
        SipURI requestSipURI = (SipURI) requestURI;
        if (requestSipURI.getMAddrParam() != null) {
          // The domain the proxy is configured to be responsible for
          // is defined
          // by stack_domain parameter in the configuration file:
          if (configuration.hasDomain(requestSipURI.getMAddrParam())) {
            if (ProxyDebug.debug)
              ProxyDebug.println(
                  "Proxy, processRequest(),"
                      + " The maddr contains a domain we are responsible for,"
                      + " we remove the mAddr parameter from the original"
                      + " request");
            // We have to strip the madr parameter:
            requestSipURI.removeParameter("maddr");
            // We have to strip the port parameter:
            if (requestSipURI.getPort() != 5060 && requestSipURI.getPort() != -1) {
              requestSipURI.setPort(5060);
            }
            // We have to strip the transport parameter:
            requestSipURI.removeParameter("transport");
          } else {
            // The Maddr parameter is not a domain we have to take
            // care of, we pass this check...
          }
        } else {
          // No Maddr parameter, we pass this check...
        }
      } else {
        // No SipURI, so no Maddr parameter, we pass this check...
      }

      /** *************************************************************************** */
      /** *********** 3. Determine target(s) for the request (Section 16.5) ********* */
      /** ************************************************************************** */
      /*
       * The set of targets will either be predetermined by the contents
       * of the request or will be obtained from an abstract location
       * service. Each target in the set is represented as a URI.
       */

      Vector targetURIList = new Vector();
      URI targetURI;

      /*
       * If the Request-URI of the request contains an maddr parameter,
       * the Request-URI MUST be placed into the target set as the only
       * target URI, and the proxy MUST proceed to Section 16.6.
       */

      if (requestURI.isSipURI()) {
        SipURI requestSipURI = (SipURI) requestURI;
        if (requestSipURI.getMAddrParam() != null) {
          targetURI = requestURI;
          targetURIList.addElement(targetURI);
          if (ProxyDebug.debug)
            ProxyDebug.println(
                "Proxy, processRequest(),"
                    + " the only target is the Request-URI (mAddr parameter)");

          // 4. Forward the request statefully:
          requestForwarding.forwardRequest(
              targetURIList, sipProvider, request, serverTransaction, true);

          return;
        }
      }

      /*
       * If the domain of the Request-URI indicates a domain this element
       * is not responsible for, the Request-URI MUST be placed into the
       * target set as the only target, and the element MUST proceed to
       * the task of Request Forwarding (Section 16.6).
       */

      if (requestURI.isSipURI()) {
        SipURI requestSipURI = (SipURI) requestURI;
        if (!configuration.hasDomain(requestSipURI.getHost())) {
          if (ProxyDebug.debug)
            ProxyDebug.println(
                "Proxy, processRequest(),"
                    + " we are not responsible for the domain: Let's check if we have"
                    + " a registration for this domain from another proxy");

          // We have to check if another proxy did not registered
          // to us, in this case we have to use the contacts provided
          // by the registered proxy to create the targets:
          if (registrar.hasDomainRegistered(request)) {
            targetURIList = registrar.getDomainContactsURI(request);
            if (targetURIList != null && !targetURIList.isEmpty()) {
              if (ProxyDebug.debug) {
                ProxyDebug.println(
                    "Proxy, processRequest(), we have"
                        + " a registration for this domain from another proxy");
              }
              // 4. Forward the request statefully:
              requestForwarding.forwardRequest(
                  targetURIList, sipProvider, request, serverTransaction, true);
              return;

            } else {
              targetURIList = new Vector();
              ProxyDebug.println(
                  "Proxy, processRequest(),"
                      + " we are not responsible for the domain: the only target"
                      + " URI is given by the request-URI");
              targetURI = requestURI;
              targetURIList.addElement(targetURI);
            }
          } else {
            ProxyDebug.println(
                "Proxy, processRequest(),"
                    + " we are not responsible for the domain: the only target"
                    + " URI is given by the request-URI");
            targetURI = requestURI;
            targetURIList.addElement(targetURI);
          }

          // 4. Forward the request statelessly:
          requestForwarding.forwardRequest(
              targetURIList, sipProvider, request, serverTransaction, false);

          return;
        } else {
          ProxyDebug.println(
              "Proxy, processRequest(),"
                  + " we are responsible for the domain... Let's find the contact...");
        }
      }

      // we use a SIP registrar:
      if (request.getMethod().equals(Request.REGISTER)) {
        if (ProxyDebug.debug) ProxyDebug.println("Incoming request Register");
        // we call the RegisterProcessing:
        registrar.processRegister(request, sipProvider, serverTransaction);
        // Henrik: let the presenceserver do some processing too
        if (isPresenceServer()) {
          presenceServer.processRegisterRequest(sipProvider, request, serverTransaction);
        }

        return;
      }

      /*
       * If we receive a subscription targeted to a user that is
       * publishing its state here, send to presence server
       */
      if (isPresenceServer() && (request.getMethod().equals(Request.SUBSCRIBE))) {
        ProxyDebug.println("Incoming request Subscribe");

        if (presenceServer.isStateAgent(request)) {
          Request clonedRequest = (Request) request.clone();
          presenceServer.processSubscribeRequest(sipProvider, clonedRequest, serverTransaction);
        } else {
          // Do we know this guy?

          targetURIList = registrar.getContactsURI(request);
          if (targetURIList == null) {
            // If not respond that we dont know him.
            ProxyDebug.println(
                "Proxy: received a Subscribe request to "
                    + " a user in our domain that was not found, "
                    + " responded 404");
            Response response = messageFactory.createResponse(Response.NOT_FOUND, request);
            if (serverTransaction != null) serverTransaction.sendResponse(response);
            else sipProvider.sendResponse(response);
            return;
          } else {
            ProxyDebug.println(
                "Trying to forward subscribe to "
                    + targetURIList.toString()
                    + "\n"
                    + request.toString());
            requestForwarding.forwardRequest(
                targetURIList, sipProvider, request, serverTransaction, false);
          }
        }
        return;
      }

      /** Received a Notify. TOADD: Check if it match active VirtualSubscriptions and update it */
      if (isPresenceServer() && (request.getMethod().equals(Request.NOTIFY))) {
        System.out.println("Incoming request Notify");

        Response response = messageFactory.createResponse(481, request);
        response.setReasonPhrase("Subscription does not exist");
        if (serverTransaction != null) serverTransaction.sendResponse(response);
        else sipProvider.sendResponse(response);
        ProxyDebug.println("Proxy: received a Notify request. Probably wrong, responded 481");
        return;
      }

      if (isPresenceServer() && (request.getMethod().equalsIgnoreCase("PUBLISH"))) {

        System.out.println("Incoming request Publish");

        ProxyDebug.println("Proxy: received a Publish request.");
        Request clonedRequest = (Request) request.clone();

        if (presenceServer.isStateAgent(clonedRequest)) {
          ProxyDebug.println("PresenceServer.isStateAgent");
        } else {
          ProxyDebug.println("PresenceServer is NOT StateAgent");
        }

        if (presenceServer.isStateAgent(clonedRequest)) {
          presenceServer.processPublishRequest(sipProvider, clonedRequest, serverTransaction);
        } else {
          Response response = messageFactory.createResponse(Response.NOT_FOUND, request);
          if (serverTransaction != null) serverTransaction.sendResponse(response);
          else sipProvider.sendResponse(response);
        }
        return;
      }

      // Forward to next hop but dont reply OK right away for the
      // BYE. Bye is end-to-end not hop by hop!
      if (request.getMethod().equals(Request.BYE)) {

        if (serverTransaction == null) {
          if (ProxyDebug.debug) ProxyDebug.println("Proxy, null server transaction for BYE");
          return;
        }

        /* added code */
        CallID call_id = (CallID) request.getHeader(CallID.CALL_ID);
        String call_id_str = call_id.getCallId();
        long end_time = TimeThreadController.Stop(call_id_str);

        To tou = (To) request.getHeader(ToHeader.NAME);
        From fromu = (From) request.getHeader(FromHeader.NAME);

        String FromUser = fromu.getUserAtHostPort();
        String ToUser = tou.getUserAtHostPort();

        StringBuffer sb = new StringBuffer(FromUser);
        int endsAt = sb.indexOf("@");
        String FromUsername = sb.substring(0, endsAt);
        sb = new StringBuffer(ToUser);
        endsAt = sb.indexOf("@");
        String ToUsername = sb.substring(0, endsAt);
        BillStrategyApply bill = new BillStrategyApply(new StandardBillPolicy());
        long start_time = TimeThreadController.getStartTime();
        java.sql.Timestamp s = new java.sql.Timestamp(start_time);
        System.out.println("START TIME POU BIKE :" + s.toString());
        BigDecimal cost = bill.executeStrategy(1, 2, start_time, end_time);
        ProcessBill.updateCallDB(FromUsername, ToUsername, start_time, end_time, cost);

        /* end of added code */

        Dialog d = serverTransaction.getDialog();
        TransactionsMapping transactionsMapping = (TransactionsMapping) d.getApplicationData();
        Dialog peerDialog = (Dialog) transactionsMapping.getPeerDialog(serverTransaction);
        Request clonedRequest = (Request) request.clone();
        FromHeader from = (FromHeader) clonedRequest.getHeader(FromHeader.NAME);
        from.removeParameter("tag");
        ToHeader to = (ToHeader) clonedRequest.getHeader(ToHeader.NAME);
        to.removeParameter("tag");
        ViaHeader via = this.getStackViaHeader();
        clonedRequest.addHeader(via);
        if (peerDialog.getState() != null) {
          ClientTransaction newct = sipProvider.getNewClientTransaction(clonedRequest);
          transactionsMapping.addMapping(serverTransaction, newct);
          peerDialog.sendRequest(newct);
          return;
        } else {
          // the peer dialog is not yet established so bail out.
          // this is a client error - client is sending BYE
          // before dialog establishment.
          if (ProxyDebug.debug) ProxyDebug.println("Proxy, bad dialog state - BYE dropped");
          return;
        }
      }

      /*
       * If the target set for the request has not been predetermined as
       * described above, this implies that the element is responsible for
       * the domain in the Request-URI, and the element MAY use whatever
       * mechanism it desires to determine where to send the request. ...
       * When accessing the location service constructed by a registrar,
       * the Request-URI MUST first be canonicalized as described in
       * Section 10.3 before being used as an index.
       */
      if (requestURI.isSipURI()) {
        SipURI requestSipURI = (SipURI) requestURI;
        Iterator iterator = requestSipURI.getParameterNames();
        if (ProxyDebug.debug)
          ProxyDebug.println("Proxy, processRequest(), we canonicalized" + " the request-URI");
        while (iterator != null && iterator.hasNext()) {
          String name = (String) iterator.next();
          requestSipURI.removeParameter(name);
        }
      }

      if (registrar.hasRegistration(request)) {

        targetURIList = registrar.getContactsURI(request);

        // We fork only INVITE
        if (targetURIList != null
            && targetURIList.size() > 1
            && !request.getMethod().equals("INVITE")) {
          if (ProxyDebug.debug)
            ProxyDebug.println(
                "Proxy, processRequest(), the request "
                    + " to fork is not an INVITE, so we will process"
                    + " it with the first target as the only target.");
          targetURI = (URI) targetURIList.firstElement();
          targetURIList = new Vector();
          targetURIList.addElement(targetURI);
          // 4. Forward the request statefully to the target:
          requestForwarding.forwardRequest(
              targetURIList, sipProvider, request, serverTransaction, true);
          return;
        }

        if (targetURIList != null && !targetURIList.isEmpty()) {
          if (ProxyDebug.debug)
            ProxyDebug.println(
                "Proxy, processRequest(), the target set"
                    + " is the set of the contacts URI from the "
                    + " location service");

          To to = (To) request.getHeader(ToHeader.NAME);
          From from = (From) request.getHeader(FromHeader.NAME);

          String FromUser = from.getUserAtHostPort();
          String ToUser = to.getUserAtHostPort();

          StringBuffer sb = new StringBuffer(FromUser);
          int endsAt = sb.indexOf("@");
          String FromUsername = sb.substring(0, endsAt);
          sb = new StringBuffer(ToUser);
          endsAt = sb.indexOf("@");
          String ToUsername = sb.substring(0, endsAt);

          if (!block.CheckBlock(FromUsername, ToUsername)) {
            Response response =
                messageFactory.createResponse(Response.TEMPORARILY_UNAVAILABLE, request);
            if (serverTransaction != null) serverTransaction.sendResponse(response);
            else sipProvider.sendResponse(response);
            return;
          }
          /*
           * // ECE355 Changes - Aug. 2005. // Call registry service,
           * get response (uri - wsdl). // if response is not null
           * then // do our staff // send to caller decline message by
           * building a decline msg // and attach wsdl uri in the
           * message body // else .. continue the logic below ...
           *
           *
           * // Lets assume that wsdl_string contains the message with
           * all the // service names and uri's for each service in
           * the required format
           *
           * // Query for web services for the receiver of INVITE //
           * Use WebServices class to get services for org
           *
           * String messageBody = "" ; WebServicesQuery wsq = null ;
           * wsq = WebServicesQuery.getInstance();
           *
           * // Get services info for receiver // A receiver is
           * represented as an organization in the Service Registry
           *
           * To to = (To)request.getHeader(ToHeader.NAME); String
           * toAddress = to.getUserAtHostPort();
           *
           * // Remove all characters after the @ sign from To address
           * StringBuffer sb = new StringBuffer(toAddress); int endsAt
           * = sb.indexOf("@"); String orgNamePattern =
           * sb.substring(0, endsAt);
           *
           *
           * Collection serviceInfoColl =
           * wsq.findServicesForOrg(orgNamePattern);
           *
           * // If services are found for this receiver (Org), build
           * DECLINE message and // send to client if (serviceInfoColl
           * != null) { if (serviceInfoColl.size()!= 0 ){
           * System.out.println("Found " + serviceInfoColl.size() +
           * " services for o rg " + orgNamePattern) ; // Build
           * message body for DECLINE message with Service Info
           * messageBody = serviceInfoColl.size()+ " -- " ;
           *
           * Iterator servIter = serviceInfoColl.iterator(); while
           * (servIter.hasNext()) { ServiceInfo servInfo =
           * (ServiceInfo)servIter.next(); messageBody = messageBody +
           * servInfo.getDescription()+ " " + servInfo.getWsdluri() +
           * " " + servInfo.getEndPoint()+ " -- ";
           *
           *
           * System.out.println("Name: " + servInfo.getName()) ;
           * System.out.println("Providing Organization: " +
           * servInfo.getProvidingOrganization()) ;
           * System.out.println("Description: " +
           * servInfo.getDescription()) ;
           * System.out.println("Service End Point " +
           * servInfo.getEndPoint()) ; System.out.println("wsdl wri "
           * + servInfo.getWsdluri()) ;
           * System.out.println("---------------------------------");
           *
           *
           *
           * }
           *
           * System.out.println("ServiceInfo - Message Body  " +
           * messageBody) ;
           *
           * // Build and send DECLINE message with web service info
           *
           * ContentTypeHeader contentTypeHeader = new ContentType(
           * "text", "plain");
           *
           * Response response = messageFactory.createResponse(
           * Response.DECLINE, request, contentTypeHeader,
           * messageBody);
           *
           *
           *
           * if (serverTransaction != null)
           * serverTransaction.sendResponse(response); else
           * sipProvider.sendResponse(response); return; } else
           * System.out.println("There are no services for org " +
           * orgNamePattern) ;
           *
           * }
           *
           * // End of ECE355 change
           */

          // 4. Forward the request statefully to each target Section
          // 16.6.:
          requestForwarding.forwardRequest(
              targetURIList, sipProvider, request, serverTransaction, true);

          return;
        } else {
          // Let's continue and try the default hop.
        }
      }

      // The registrar cannot help to decide the targets, so let's use
      // our router: the default hop!
      ProxyDebug.println(
          "Proxy, processRequest(), the registrar cannot help"
              + " to decide the targets, so let's use our router: the default hop");
      Router router = sipStack.getRouter();
      if (router != null) {
        ProxyHop hop = (ProxyHop) router.getOutboundProxy();
        if (hop != null) {
          if (ProxyDebug.debug)
            ProxyDebug.println(
                "Proxy, processRequest(), the target set" + " is the defaut hop: outbound proxy");

          // Bug fix contributed by Joe Provino
          String user = null;

          if (requestURI.isSipURI()) {
            SipURI requestSipURI = (SipURI) requestURI;
            user = requestSipURI.getUser();
          }

          SipURI hopURI = addressFactory.createSipURI(user, hop.getHost());
          hopURI.setTransportParam(hop.getTransport());
          hopURI.setPort(hop.getPort());
          targetURI = hopURI;
          targetURIList.addElement(targetURI);

          // 4. Forward the request statelessly to each target Section
          // 16.6.:
          requestForwarding.forwardRequest(
              targetURIList, sipProvider, request, serverTransaction, false);

          return;
        }
      }

      /*
       * If the target set remains empty after applying all of the above,
       * the proxy MUST return an error response, which SHOULD be the 480
       * (Temporarily Unavailable) response.
       */
      Response response = messageFactory.createResponse(Response.TEMPORARILY_UNAVAILABLE, request);
      if (serverTransaction != null) serverTransaction.sendResponse(response);
      else sipProvider.sendResponse(response);

      if (ProxyDebug.debug)
        ProxyDebug.println(
            "Proxy, processRequest(), unable to set "
                + " the targets, 480 (Temporarily Unavailable) replied:\n"
                + response.toString());

    } catch (Exception ex) {
      try {
        if (ProxyDebug.debug) {
          ProxyDebug.println("Proxy, processRequest(), internal error, " + "exception raised:");
          ProxyDebug.logException(ex);
          ex.printStackTrace();
        }

        // This is an internal error:
        // Let's return a 500 SERVER_INTERNAL_ERROR
        Response response = messageFactory.createResponse(Response.SERVER_INTERNAL_ERROR, request);
        if (serverTransaction != null) serverTransaction.sendResponse(response);
        else sipProvider.sendResponse(response);

        if (ProxyDebug.debug)
          ProxyDebug.println(
              "Proxy, processRequest(),"
                  + " 500 SERVER_INTERNAL_ERROR replied:\n"
                  + response.toString());
      } catch (Exception e) {
        e.printStackTrace();
      }
    }
  }