@RequestMapping(value = "/{siteId}/{pageId}/createLinkURL.form", method = RequestMethod.POST)
  protected ModelAndView createLinkURL(
      @PathVariable String siteId,
      @PathVariable String pageId,
      HttpServletRequest request,
      HttpServletResponse response)
      throws Exception {
    ModelAndView modelAndView = null;
    try {
      AuthRequest ar = getLoggedInAuthRequest(request, response, "message.can.not.create.link.url");
      NGPage ngp = registerRequiredProject(ar, siteId, pageId);
      ar.assertNotFrozen(ngp);

      String visibility = ar.reqParam("visibility");

      String comment = ar.reqParam("comment");
      String taskUrl = ar.reqParam("taskUrl");
      String ftype = ar.reqParam("ftype");

      AttachmentRecord attachment = ngp.createAttachment();
      String proposedName = taskUrl;

      if (taskUrl.contains("/")) {
        proposedName = taskUrl.substring(taskUrl.lastIndexOf("/") + 1);
      }

      AttachmentHelper.setDisplayName(ngp, attachment, proposedName);

      attachment.setComment(comment);
      attachment.setModifiedBy(ar.getBestUserId());
      attachment.setModifiedDate(ar.nowTime);
      attachment.setType(ftype);
      if (visibility.equals("PUB")) {
        attachment.setVisibility(1);
      } else {
        attachment.setVisibility(2);
      }

      HistoryRecord.createHistoryRecord(
          ngp,
          attachment.getId(),
          HistoryRecord.CONTEXT_TYPE_DOCUMENT,
          ar.nowTime,
          HistoryRecord.EVENT_DOC_ADDED,
          ar,
          "Created Link URL");

      attachment.setStorageFileName(taskUrl);
      ngp.saveFile(ar, "Created Link URL");
      modelAndView = createRedirectView(ar, "attachment.htm");
    } catch (Exception ex) {
      throw new NGException(
          "nugen.operation.fail.project.create.link.url.to.project",
          new Object[] {pageId, siteId},
          ex);
    }
    return modelAndView;
  }