예제 #1
0
  /** Loads internal services */
  private void loadInternalServices() {
    try {
      Iterator services;
      String servicename;
      String baseURL = System.getProperty("user.dir") + "/" + APPLICATIONS_DIRECTORY;

      LucaneClassLoader loader = LucaneClassLoader.getInstance();
      services = store.getServiceStore().getAllServices();

      while (services.hasNext()) {
        ServiceConcept service = (ServiceConcept) services.next();
        servicename = service.getName();
        try {
          loader.addUrl(new URL("jar:file:///" + baseURL + servicename + ".jar!/"));
          String className =
              (new JarFile(baseURL + servicename + ".jar"))
                  .getManifest()
                  .getMainAttributes()
                  .getValue("Service-Class");

          if (className == null) continue;

          Service serv = (Service) Class.forName(className, true, loader).newInstance();
          this.services.add(serv);
          serv.init(this);

          if (!service.isInstalled()) {
            serv.install();
            service.setInstalled();
            store.getServiceStore().updateService(service);
          }

          Logging.getLogger().info("Service '" + servicename + "' loaded.");
          this.connections.add(
              new ConnectInfo(servicename, serverIp, serverIp, port, "nokey", "service"));
        } catch (Exception e) {
          Logging.getLogger().warning("Unable to load service '" + servicename);
        }
      }
    } catch (Exception e) {
      Logging.getLogger().warning("Unable to load internal services : " + e);
      e.printStackTrace();
    }
  }
예제 #2
0
  /**
   * Reads messages from the network. A message is either a command for the server or for an
   * internal Service.
   *
   * @param sock the Socket
   */
  private void getMessage(Socket sock) {
    int i;
    boolean alreadyConnected;
    boolean isAuthentication;

    Message message;
    byte[] signature;

    String cmd;
    String cmdData;
    StringTokenizer stk;

    ObjectConnection oc = null;

    try {
      /* streams initialization */
      oc = new ObjectConnection(sock);
      message = (Message) oc.read();
      signature = (byte[]) oc.read();
    } catch (Exception ex) {
      ex.printStackTrace();
      Logging.getLogger().warning("#Err > Unable to read message.");
      return;
    }

    // check wether a user is known or not
    alreadyConnected = isAlreadyKnown(message.getSender());

    // check if command is authentication
    isAuthentication =
        message.getApplication().equals("Server")
            && ((String) message.getData()).startsWith("AUTH");

    // signature check
    if (alreadyConnected && !isAuthentication) {
      boolean sigok = false;
      try {
        ConnectInfo ci = message.getSender();
        if (ci.verifier == null) ci = this.getCompleteConnectInfo(ci);
        sigok = ci.verifier.verify(message, signature);
      } catch (Exception e) {
        e.printStackTrace();
      }

      if (!sigok) {
        try {
          oc.write("FAILED bad signature");
        } catch (Exception e) {
        }
        Logging.getLogger().warning("#Err > bad signature: " + message.getSender());
        return;
      }
    }

    if (message.getApplication().equals("Server")) {
      cmd = null;

      try {
        stk = new StringTokenizer((String) message.getData());
        cmd = stk.nextToken();
        cmdData = stk.nextToken("\0").substring(1);
      } catch (Exception ex) {
        if (cmd == null) cmd = "";

        cmdData = "";
      }

      /* if the user asks for authentication, we try to do it and exits this method */
      if (cmd.equals("AUTH")) {
        try {
          oc.write("OK");
        } catch (Exception e) {
          e.printStackTrace();
        }

        authentification(oc, message, cmdData);
      } else if (!alreadyConnected) {
        Logging.getLogger().info("Access denied to " + message.getSender());
        try {
          oc.write("FAILED No Connection");
        } catch (Exception e) {
        }
      } else {
        internalCommand(oc, message, cmd, cmdData);
      }
    } else if (!alreadyConnected) {
      Logging.getLogger().info("Access denied to " + message.getSender());
      try {
        oc.write("FAILED No Connection");
      } catch (Exception e) {
      }
    } else {
      Service s;

      /* seek the destination service */
      boolean serviceFound = false;
      for (i = 0; i < this.services.size(); i++) {
        s = (Service) services.get(i);

        if (s.getName().equalsIgnoreCase(message.getApplication())) {
          serviceFound = true;
          UserConcept user = null;
          ServiceConcept service = null;
          try {
            user = store.getUserStore().getUser(message.getSender().getName());
            service = store.getServiceStore().getService(message.getReceiver().getName());
          } catch (Exception e) {
          }

          /* tests serviceManager for permissions */
          boolean isAutorizedService = false;
          try {
            isAutorizedService = store.getServiceStore().isAuthorizedService(user, service);
          } catch (Exception e) {
          }

          if (!isAutorizedService) {
            Logging.getLogger()
                .info(
                    "#Err > "
                        + message.getSender()
                        + " : Service denied to "
                        + message.getReceiver().getName());
            try {
              oc.write("FAILED You don't have acces to this service");
            } catch (Exception e) {
            }
          } else {
            try {
              oc.write("OK");
            } catch (Exception e) {
            }
            serviceFound = true;
            s.process(oc, message);
          }
          break;
        }
      }

      if (!serviceFound) {
        try {
          oc.write("FAILED unknown");
        } catch (Exception e) {
        }
        Logging.getLogger()
            .warning("#Err > Service " + message.getReceiver().getName() + " unknown");
      }
    }

    oc.close();
  }