Example #1
0
 /*
  * (non-Javadoc)
  *
  * @see
  * org.apache.mina.core.service.IoHandlerAdapter#exceptionCaught(org.apache
  * .mina.core.session.IoSession, java.lang.Throwable)
  */
 @Override
 public void exceptionCaught(IoSession session, Throwable cause) throws Exception {
   log.error(cause.getMessage(), cause);
 }
Example #2
0
  /**
   * Service.
   *
   * @param o the o
   * @param session the session
   */
  void service(IoBuffer o, IoSession session) {
    try {
      // System.out.println(o.remaining() + "/" + o.capacity());

      session.setAttribute("last", System.currentTimeMillis());

      SimpleIoBuffer in = (SimpleIoBuffer) session.getAttribute("buf");
      if (in == null) {
        in = SimpleIoBuffer.create(4096);
        session.setAttribute("buf", in);
      }
      byte[] data = new byte[o.remaining()];
      o.get(data);
      in.append(data);

      // log.debug("recv: " + data.length + ", " +
      // session.getRemoteAddress());

      while (in.length() > 5) {
        in.mark();
        /**
         * Byte 1: head of the package<br>
         * bit 7-6: "01", indicator of MDC<br>
         * bit 5: encrypt indicator, "0": no; "1": encrypted<br>
         * bit 4: zip indicator, "0": no, "1": ziped<br>
         * bit 0-3: reserved<br>
         * Byte 2-5: length of data<br>
         * Byte[…]: data array<br>
         */
        byte head = in.read();
        /** test the head indicator, if not correct close it */
        if ((head & 0xC0) != 0x40) {
          log.info("flag is not correct! flag:" + head + ",from: " + session.getRemoteAddress());

          session.write("error.head");
          session.close(true);
          return;
        }

        int len = in.getInt();

        if (len <= 0 || len > MAX_SIZE) {
          log.error(
              "mdcserver.Wrong lendth: "
                  + len
                  + "/"
                  + MAX_SIZE
                  + " - "
                  + session.getRemoteAddress());
          session.write("error.packet.size");
          session.close(true);
          break;
        }

        // log.info("packet.len:" + len + ", len in buffer:" +
        // in.length());
        if (in.length() < len) {
          in.reset();
          break;
        } else {
          // do it

          byte[] b = new byte[len];
          in.read(b);

          // log.info("stub.package.size: " + len + ", head:" + head +
          // ", cmd:" + Bean.toString(b));
          // log.info("stub.package.size: " + len + ", head:" + head);

          /** test the zip flag */
          if ((head & 0x10) != 0) {
            b = Zip.unzip(b);
          }

          final TConn d = (TConn) session.getAttribute("conn");
          if (d != null) {
            /** test the encrypted flag */
            if ((head & 0x20) != 0) {
              b = DES.decode(b, d.deskey);
            }

            final byte[] bb = b;

            /** test if the packet is for mdc or app */
            new WorkerTask() {

              @Override
              public void onExecute() {
                d.process(bb);
              }
            }.schedule(0);

            session.setAttribute("last", System.currentTimeMillis());
          } else {
            session.write("error.getconnection");

            log.error("error to get connection: " + session.getRemoteAddress());
            session.close(true);
          }
        }
      }
    } catch (Throwable e) {
      log.error("closing stub: " + session.getRemoteAddress(), e);
      session.write("exception." + e.getMessage());
      session.close(true);
    }
  }