示例#1
0
  /**
   * Write a file to the response stream. Handles Range requests.
   *
   * @param servlet called from here
   * @param req the request
   * @param res the response
   * @param file to serve
   * @param contentType content type, if null, will try to guess
   * @throws IOException on write error
   */
  public static void returnFile(
      HttpServlet servlet,
      HttpServletRequest req,
      HttpServletResponse res,
      File file,
      String contentType)
      throws IOException {

    // No file, nothing to view
    if (file == null) {
      log.info(
          "returnFile(): "
              + UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_NOT_FOUND, 0));
      res.sendError(HttpServletResponse.SC_NOT_FOUND);
      return;
    }

    // check that it exists
    if (!file.exists()) {
      log.info(
          "returnFile(): "
              + UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_NOT_FOUND, 0));
      res.sendError(HttpServletResponse.SC_NOT_FOUND);
      return;
    }

    // not a directory
    if (!file.isFile()) {
      log.info(
          "returnFile(): "
              + UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_BAD_REQUEST, 0));
      res.sendError(HttpServletResponse.SC_BAD_REQUEST);
      return;
    }

    // Set the type of the file
    String filename = file.getPath();
    if (null == contentType) {
      if (filename.endsWith(".html")) contentType = "text/html; charset=iso-8859-1";
      else if (filename.endsWith(".xml")) contentType = "text/xml; charset=iso-8859-1";
      else if (filename.endsWith(".txt") || (filename.endsWith(".log"))) contentType = CONTENT_TEXT;
      else if (filename.indexOf(".log.") > 0) contentType = CONTENT_TEXT;
      else if (filename.endsWith(".nc")) contentType = "application/x-netcdf";
      else contentType = servlet.getServletContext().getMimeType(filename);

      if (contentType == null) contentType = "application/octet-stream";
    }

    returnFile(req, res, file, contentType);
  }
示例#2
0
  public static void showServletInfo(HttpServlet servlet, PrintStream out) {
    out.println("Servlet Info");
    out.println(" getServletName(): " + servlet.getServletName());
    out.println(" getRootPath(): " + getRootPath());
    out.println(" Init Parameters:");
    Enumeration params = servlet.getInitParameterNames();
    while (params.hasMoreElements()) {
      String name = (String) params.nextElement();
      out.println("  " + name + ": " + servlet.getInitParameter(name));
    }
    out.println();

    ServletContext context = servlet.getServletContext();
    out.println("Context Info");

    try {
      out.println(" context.getResource('/'): " + context.getResource("/"));
    } catch (java.net.MalformedURLException e) {
    } // cant happen
    out.println(" context.getServerInfo(): " + context.getServerInfo());
    out.println("  name: " + getServerInfoName(context.getServerInfo()));
    out.println("  version: " + getServerInfoVersion(context.getServerInfo()));

    out.println(" context.getInitParameterNames():");
    params = context.getInitParameterNames();
    while (params.hasMoreElements()) {
      String name = (String) params.nextElement();
      out.println("  " + name + ": " + context.getInitParameter(name));
    }

    out.println(" context.getAttributeNames():");
    params = context.getAttributeNames();
    while (params.hasMoreElements()) {
      String name = (String) params.nextElement();
      out.println("  context.getAttribute(\"" + name + "\"): " + context.getAttribute(name));
    }

    out.println();
  }
示例#3
0
  /**
   * Show details about the request
   *
   * @param servlet used to get teh servlet context, may be null
   * @param req the request
   * @return string showing the details of the request.
   */
  public static String showRequestDetail(HttpServlet servlet, HttpServletRequest req) {
    StringBuilder sbuff = new StringBuilder();

    sbuff.append("Request Info\n");
    sbuff.append(" req.getServerName(): ").append(req.getServerName()).append("\n");
    sbuff.append(" req.getServerPort(): ").append(req.getServerPort()).append("\n");
    sbuff.append(" req.getContextPath:").append(req.getContextPath()).append("\n");
    sbuff.append(" req.getServletPath:").append(req.getServletPath()).append("\n");
    sbuff.append(" req.getPathInfo:").append(req.getPathInfo()).append("\n");
    sbuff.append(" req.getQueryString:").append(req.getQueryString()).append("\n");
    sbuff
        .append(" getQueryStringDecoded:")
        .append(EscapeStrings.urlDecode(req.getQueryString()))
        .append("\n");
    /*try {
      sbuff.append(" getQueryStringDecoded:").append(URLDecoder.decode(req.getQueryString(), "UTF-8")).append("\n");
    } catch (UnsupportedEncodingException e1) {
      e1.printStackTrace();
    }*/
    sbuff.append(" req.getRequestURI:").append(req.getRequestURI()).append("\n");
    sbuff.append(" getRequestBase:").append(getRequestBase(req)).append("\n");
    sbuff.append(" getRequestServer:").append(getRequestServer(req)).append("\n");
    sbuff.append(" getRequest:").append(getRequest(req)).append("\n");
    sbuff.append("\n");

    sbuff.append(" req.getPathTranslated:").append(req.getPathTranslated()).append("\n");
    String path = req.getPathTranslated();
    if ((path != null) && (servlet != null)) {
      ServletContext context = servlet.getServletContext();
      sbuff.append(" getMimeType:").append(context.getMimeType(path)).append("\n");
    }
    sbuff.append("\n");
    sbuff.append(" req.getScheme:").append(req.getScheme()).append("\n");
    sbuff.append(" req.getProtocol:").append(req.getProtocol()).append("\n");
    sbuff.append(" req.getMethod:").append(req.getMethod()).append("\n");
    sbuff.append("\n");
    sbuff.append(" req.getContentType:").append(req.getContentType()).append("\n");
    sbuff.append(" req.getContentLength:").append(req.getContentLength()).append("\n");

    sbuff.append(" req.getRemoteAddr():").append(req.getRemoteAddr());
    try {
      sbuff
          .append(" getRemoteHost():")
          .append(java.net.InetAddress.getByName(req.getRemoteHost()).getHostName())
          .append("\n");
    } catch (java.net.UnknownHostException e) {
      sbuff.append(" getRemoteHost():").append(e.getMessage()).append("\n");
    }
    sbuff.append(" getRemoteUser():").append(req.getRemoteUser()).append("\n");

    sbuff.append("\n");
    sbuff.append("Request Parameters:\n");
    Enumeration params = req.getParameterNames();
    while (params.hasMoreElements()) {
      String name = (String) params.nextElement();
      String values[] = req.getParameterValues(name);
      if (values != null) {
        for (int i = 0; i < values.length; i++) {
          sbuff
              .append("  ")
              .append(name)
              .append("  (")
              .append(i)
              .append("): ")
              .append(values[i])
              .append("\n");
        }
      }
    }
    sbuff.append("\n");

    sbuff.append("Request Headers:\n");
    Enumeration names = req.getHeaderNames();
    while (names.hasMoreElements()) {
      String name = (String) names.nextElement();
      Enumeration values = req.getHeaders(name); // support multiple values
      if (values != null) {
        while (values.hasMoreElements()) {
          String value = (String) values.nextElement();
          sbuff.append("  ").append(name).append(": ").append(value).append("\n");
        }
      }
    }
    sbuff.append(" ------------------\n");

    return sbuff.toString();
  }