Example #1
0
  public static void showSession(HttpServletRequest req, HttpServletResponse res, PrintStream out) {

    // res.setContentType("text/html");

    // Get the current session object, create one if necessary
    HttpSession session = req.getSession();

    // Increment the hit count for this page. The value is saved
    // in this client's session under the name "snoop.count".
    Integer count = (Integer) session.getAttribute("snoop.count");
    if (count == null) {
      count = 1;
    } else count = count + 1;
    session.setAttribute("snoop.count", count);

    out.println(HtmlWriter.getInstance().getHtmlDoctypeAndOpenTag());
    out.println("<HEAD><TITLE>SessionSnoop</TITLE></HEAD>");
    out.println("<BODY><H1>Session Snoop</H1>");

    // Display the hit count for this page
    out.println(
        "You've visited this page " + count + ((!(count.intValue() != 1)) ? " time." : " times."));

    out.println("<P>");

    out.println("<H3>Here is your saved session data:</H3>");
    Enumeration atts = session.getAttributeNames();
    while (atts.hasMoreElements()) {
      String name = (String) atts.nextElement();
      out.println(name + ": " + session.getAttribute(name) + "<BR>");
    }

    out.println("<H3>Here are some vital stats on your session:</H3>");
    out.println("Session id: " + session.getId() + " <I>(keep it secret)</I><BR>");
    out.println("New session: " + session.isNew() + "<BR>");
    out.println("Timeout: " + session.getMaxInactiveInterval());
    out.println("<I>(" + session.getMaxInactiveInterval() / 60 + " minutes)</I><BR>");
    out.println("Creation time: " + session.getCreationTime());
    out.println("<I>(" + new Date(session.getCreationTime()) + ")</I><BR>");
    out.println("Last access time: " + session.getLastAccessedTime());
    out.println("<I>(" + new Date(session.getLastAccessedTime()) + ")</I><BR>");

    out.println(
        "Requested session ID from cookie: " + req.isRequestedSessionIdFromCookie() + "<BR>");
    out.println("Requested session ID from URL: " + req.isRequestedSessionIdFromURL() + "<BR>");
    out.println("Requested session ID valid: " + req.isRequestedSessionIdValid() + "<BR>");

    out.println("<H3>Test URL Rewriting</H3>");
    out.println("Click <A HREF=\"" + res.encodeURL(req.getRequestURI()) + "\">here</A>");
    out.println("to test that session tracking works via URL");
    out.println("rewriting even when cookies aren't supported.");

    out.println("</BODY></HTML>");
  }
Example #2
0
  private void level2level3catalog(
      RadarType radarType,
      String pathInfo,
      PrintWriter pw,
      HttpServletRequest req,
      HttpServletResponse res)
      throws IOException {

    try {
      String type;
      if (pathInfo.contains("level2")) type = radarType.toString() + "/level2";
      else type = radarType.toString() + "/level3";

      ByteArrayOutputStream os = new ByteArrayOutputStream(10000);
      InvCatalogFactory factory = InvCatalogFactory.getDefaultFactory(false);
      factory.writeXML(cat, os, true);
      InvCatalogImpl tCat = factory.readXML(new ByteArrayInputStream(os.toByteArray()), catURI);

      Iterator parents = tCat.getDatasets().iterator();
      while (parents.hasNext()) {
        ArrayList<InvDatasetImpl> delete = new ArrayList<InvDatasetImpl>();
        InvDatasetImpl top = (InvDatasetImpl) parents.next();
        Iterator tDatasets = top.getDatasets().iterator();
        while (tDatasets.hasNext()) {
          InvDatasetImpl ds = (InvDatasetImpl) tDatasets.next();
          if (ds instanceof InvDatasetScan) {
            InvDatasetScan ids = (InvDatasetScan) ds;
            if (ids.getPath() == null) continue;
            if (ids.getPath().contains(type)) {
              ids.setXlinkHref(ids.getPath() + "/dataset.xml");
            } else {
              delete.add(ds);
            }
          }
        }
        // remove datasets
        for (InvDatasetImpl idi : delete) {
          top.removeDataset(idi);
        }
      }
      if (pathInfo.endsWith("xml")) {
        String catAsString = factory.writeXML(tCat);
        pw.println(catAsString);
        pw.flush();
      } else {
        HtmlWriter.getInstance().writeCatalog(req, res, tCat, true); // show catalog as HTML
      }
    } catch (Throwable e) {
      log.error("RadarServer.level2level3catalog failed", e);
      if (!res.isCommitted()) res.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    }
    return;
  }
Example #3
0
  /**
   * Send a permanent redirect (HTTP status 301 "Moved Permanently") response with the given target
   * path.
   *
   * <p>The given target path may be relative or absolute. If it is relative, it will be resolved
   * against the request URL.
   *
   * @param targetPath the path to which the client is redirected.
   * @param req the HttpServletRequest
   * @param res the HttpServletResponse
   * @throws IOException if can't write the response.
   */
  public static void sendPermanentRedirect(
      String targetPath, HttpServletRequest req, HttpServletResponse res) throws IOException {
    // Absolute URL needed so resolve the target path against the request URL.
    URI uri;
    try {
      uri = new URI(req.getRequestURL().toString());
    } catch (URISyntaxException e) {
      log.error(
          "sendPermanentRedirect(): Bad syntax on request URL <" + req.getRequestURL() + ">.", e);
      log.info(
          "sendPermanentRedirect(): "
              + UsageLog.closingMessageForRequestContext(
                  HttpServletResponse.SC_INTERNAL_SERVER_ERROR, 0));
      if (!res.isCommitted()) res.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
      return;
    }
    String absolutePath = uri.resolve(targetPath).toString();
    absolutePath = res.encodeRedirectURL(absolutePath);

    res.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);
    res.addHeader("Location", absolutePath);

    String title = "Permanently Moved - 301";
    String body =
        new StringBuilder()
            .append("<p>")
            .append("The requested URL <")
            .append(req.getRequestURL())
            .append("> has been permanently moved (HTTP status code 301).")
            .append(" Instead, please use the following URL: <a href=\"")
            .append(absolutePath)
            .append("\">")
            .append(absolutePath)
            .append("</a>.")
            .append("</p>")
            .toString();
    String htmlResp =
        new StringBuilder()
            .append(HtmlWriter.getInstance().getHtmlDoctypeAndOpenTag())
            .append("<head><title>")
            .append(title)
            .append("</title></head><body>")
            .append("<h1>")
            .append(title)
            .append("</h1>")
            .append(body)
            .append("</body></html>")
            .toString();

    log.info("sendPermanentRedirect(): redirect to " + absolutePath);
    log.info(
        "sendPermanentRedirect(): "
            + UsageLog.closingMessageForRequestContext(
                HttpServletResponse.SC_MOVED_PERMANENTLY, htmlResp.length()));

    // Write the catalog out.
    PrintWriter out = res.getWriter();
    res.setContentType("text/html");
    out.print(htmlResp);
    out.flush();
  }
Example #4
0
  /**
   * Convenience routine used by handleRequestForContentFile() and handleRequestForRootFile().
   *
   * @param pathPrefix
   * @param path
   * @param servlet
   * @param req request
   * @param res response
   * @throws IOException on IO error
   */
  private static void handleRequestForContentOrRootFile(
      String pathPrefix,
      String path,
      HttpServlet servlet,
      HttpServletRequest req,
      HttpServletResponse res)
      throws IOException {
    if (!pathPrefix.equals("/content/") && !pathPrefix.equals("/root/")) {
      log.error(
          "handleRequestForContentFile(): The path prefix <"
              + pathPrefix
              + "> must be \"/content/\" or \"/root/\".");
      throw new IllegalArgumentException("Path prefix must be \"/content/\" or \"/root/\".");
    }

    if (!path.startsWith(pathPrefix)) {
      log.error(
          "handleRequestForContentFile(): path <"
              + path
              + "> must start with \""
              + pathPrefix
              + "\".");
      throw new IllegalArgumentException("Path must start with \"" + pathPrefix + "\".");
    }

    // Don't allow ".." directories in path.
    if (path.indexOf("/../") != -1
        || path.equals("..")
        || path.startsWith("../")
        || path.endsWith("/..")) {
      res.sendError(HttpServletResponse.SC_FORBIDDEN, "Path cannot contain \"..\" directory.");
      log.info(UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_FORBIDDEN, -1));
      return;
    }

    // Find the requested file.
    File file =
        new File(
            ServletUtil.formFilename(getContentPath(), path.substring(pathPrefix.length() - 1)));
    if (file.exists()) {
      // Do not allow request for a directory.
      if (file.isDirectory()) {
        if (!path.endsWith("/")) {
          String redirectPath = req.getRequestURL().append("/").toString();
          ServletUtil.sendPermanentRedirect(redirectPath, req, res);
          return;
        }

        int i = HtmlWriter.getInstance().writeDirectory(res, file, path);
        int status = i == 0 ? HttpServletResponse.SC_NOT_FOUND : HttpServletResponse.SC_OK;
        log.info(UsageLog.closingMessageForRequestContext(status, i));

        return;
      }

      // Return the requested file.
      ServletUtil.returnFile(servlet, req, res, file, null);
    } else {
      // Requested file not found.
      log.info(UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_NOT_FOUND, -1));
      res.sendError(HttpServletResponse.SC_NOT_FOUND); // 404
    }
  }
Example #5
0
  // get pathInfo and parmameters from servlet call
  public void doGet(HttpServletRequest req, HttpServletResponse res)
      throws ServletException, IOException {

    PrintWriter pw = null;
    try {
      long startms = System.currentTimeMillis();

      if (cat == null || rm.nexradList == null) { // something major wrong
        res.sendError(
            HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
            "radarServer Radar Station/Catalog initialization problem");
        return;
      }
      // setup
      String pathInfo = req.getPathInfo();
      if (pathInfo == null) pathInfo = "";
      RadarType radarType = RadarType.nexrad; // default
      if (pathInfo.indexOf('/', 1) > 1) {
        String rt = pathInfo.substring(1, pathInfo.indexOf('/', 1));
        radarType = RadarType.valueOf(rt);
      }
      // default is xml, assume errors will be recorded by logger from this point
      if (!pathInfo.endsWith("html")) {
        pw = res.getWriter();
        res.setContentType("text/xml; charset=iso-8859-1"); // default
      }
      // radar  query
      if (req.getQueryString() != null) {
        // log.debug("RadarServer query ="+ req.getQueryString() );
        if (log.isDebugEnabled())
          log.debug("<documentation>\n" + req.getQueryString() + "</documentation>\n");
        rm.radarQuery(radarType, req, res, pw);
        if (log.isDebugEnabled())
          log.debug("after doGet " + (System.currentTimeMillis() - startms));
        pw.flush();
        return;
      }
      // return radarCollections catalog   xml or html
      if (pathInfo.startsWith("/catalog.xml") || pathInfo.startsWith("/dataset.xml")) {
        InvCatalogFactory factory = InvCatalogFactory.getDefaultFactory(false); // no validation
        String catAsString = factory.writeXML(cat);
        pw.println(catAsString);
        res.setStatus(HttpServletResponse.SC_OK);
        pw.flush();
        return;
      } else if (pathInfo.startsWith("/catalog.html") || pathInfo.startsWith("/dataset.html")) {
        try {
          int i =
              HtmlWriter.getInstance().writeCatalog(req, res, cat, true); // show catalog as HTML
        } catch (Exception e) {
          log.error("Radar HtmlWriter failed ", e);
          res.sendError(
              HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
              "radarServer HtmlWriter error " + pathInfo);
          return;
        }
        return;
      }
      // level2 and level3 catalog/dataset
      if (pathInfo.contains("level2/catalog.")
          || pathInfo.contains("level3/catalog.")
          || pathInfo.contains("level2/dataset.")
          || pathInfo.contains("level3/dataset.")) {
        level2level3catalog(radarType, pathInfo, pw, req, res);
        return;
      }
      // return stations of dataset
      if (pathInfo.endsWith("stations.xml")) {
        pathInfo = pathInfo.replace("/stations.xml", "");
        Element rootElem = new Element("stationsList");
        Document doc = new Document(rootElem);
        doc = rm.stationsXML(radarType, doc, rootElem, pathInfo.substring(1));
        XMLOutputter fmt = new XMLOutputter(Format.getPrettyFormat());
        pw.println(fmt.outputString(doc));
        pw.flush();
        return;
      }
      // return specific dataset information, ie IDD
      if (pathInfo.endsWith("dataset.xml") || pathInfo.endsWith("catalog.xml")) {
        datasetInfoXml(radarType, pathInfo, pw);
        return;
      }
      // needs work nobody using it now
      // return Dataset information in html form format
      if (pathInfo.endsWith("dataset.html") || pathInfo.endsWith("catalog.html")) {
        datasetInfoHtml(radarType, pathInfo, pw, res);
        return;
      }
      // mal formed request with no exceptions
      res.sendError(HttpServletResponse.SC_NOT_FOUND);

    } catch (FileNotFoundException e) {
      if (!res.isCommitted()) res.sendError(HttpServletResponse.SC_NOT_FOUND);

    } catch (Throwable e) {
      log.error("RadarServer.doGet failed", e);
      if (!res.isCommitted()) res.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    }
  } // end doGet