Пример #1
0
  protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    Integer itemID = UIUtil.getIntParameter(request, "itemID");
    Item item = Item.find(context, itemID);
    String submit = UIUtil.getSubmitButton(request, "submit");
    if (submit != null && submit.equals("submit")) {
      request.setAttribute("itemID", itemID);
      JSPManager.showJSP(request, response, "/tools/version-summary.jsp");
      return;
    }

    String summary = request.getParameter("summary");
    if (submit != null && submit.equals("submit_version")) {
      Integer wsid = VersionUtil.processCreateNewVersion(context, itemID, summary);
      response.sendRedirect(request.getContextPath() + "/submit?resume=" + wsid);
      context.complete();
      return;
    } else if (submit != null && submit.equals("submit_update_version")) {
      String versionID = request.getParameter("versionID");
      request.setAttribute("itemID", itemID);
      request.setAttribute("versionID", versionID);
      JSPManager.showJSP(request, response, "/tools/version-update-summary.jsp");
      return;
    }

    // Send us back to the item page if we cancel !
    response.sendRedirect(request.getContextPath() + "/handle/" + item.getHandle());
    context.complete();
  }
Пример #2
0
 protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
     throws ServletException, IOException, SQLException, AuthorizeException {
   // check if ldap is enables and forward to the correct login form
   boolean ldap_enabled = ConfigurationManager.getBooleanProperty("ldap.enable");
   if (ldap_enabled) {
     JSPManager.showJSP(request, response, "/login/ldap.jsp");
   } else {
     JSPManager.showJSP(request, response, "/login/password.jsp");
   }
 }
  /**
   * show the workspace item home page
   *
   * @param context the context of the request
   * @param request the servlet request
   * @param response the servlet response
   */
  private void showMainPage(Context c, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    // get the value from the request
    int wsItemID = UIUtil.getIntParameter(request, "workspace_id");

    // get the workspace item, item and collections from the request value
    WorkspaceItem wsItem = WorkspaceItem.find(c, wsItemID);
    Item item = wsItem.getItem();
    // Collection[] collections = item.getCollections();
    Collection[] collections = {wsItem.getCollection()};

    // Ensure the user has authorisation
    AuthorizeManager.authorizeAction(c, item, Constants.READ);

    log.info(
        LogManager.getHeader(c, "View Workspace Item Metadata", "workspace_item_id=" + wsItemID));

    // Full or simple display?
    boolean displayAll = false;
    String button = UIUtil.getSubmitButton(request, "submit_simple");
    if (button.equalsIgnoreCase("submit_full")) {
      displayAll = true;
    }

    // FIXME: we need to synchronise with the handle servlet to use the
    // display item JSP for both handled and un-handled items
    // Set attributes and display
    // request.setAttribute("wsItem", wsItem);
    request.setAttribute("display.all", Boolean.valueOf(displayAll));
    request.setAttribute("item", item);
    request.setAttribute("collections", collections);
    request.setAttribute("workspace_id", Integer.valueOf(wsItem.getID()));

    JSPManager.showJSP(request, response, "/display-item.jsp");
  }
Пример #4
0
  /**
   * Show list of bitstream formats
   *
   * @param context Current DSpace context
   * @param request Current HTTP request
   * @param response Current HTTP response
   */
  private void showFormats(
      Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    List<BitstreamFormat> formats = bitstreamFormatService.findAll(context);

    request.setAttribute("formats", formats);
    JSPManager.showJSP(request, response, "/dspace-admin/list-formats.jsp");
  }
  /**
   * Show error page if nothing has been <code>POST</code>ed to servlet
   *
   * @param context the context of the request
   * @param request the servlet request
   * @param response the servlet response
   */
  private void showErrorPage(
      Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    int wsItemID = UIUtil.getIntParameter(request, "workspace_id");

    log.error(
        LogManager.getHeader(
            context, "View Workspace Item Metadata Failed", "workspace_item_id=" + wsItemID));

    JSPManager.showJSP(request, response, "/workspace/wsv-error.jsp");
  }
  /**
   * Displays the list of current settings for supervisors
   *
   * @param context the context of the request
   * @param request the servlet request
   * @param response the servlet response
   */
  private void showListPage(
      Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    // get all the supervised items
    SupervisedItem[] si = SupervisedItem.getAll(context);

    // set the attributes for the JSP
    request.setAttribute("supervised", si);

    JSPManager.showJSP(request, response, "/dspace-admin/supervise-list.jsp");
  }
  protected void doDSPost(Context c, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    // Get submit button
    String button = UIUtil.getSubmitButton(request, "submit");

    String news = "";

    // Are we editing the top news or the sidebar news?
    String position = request.getParameter("position");

    if (button.equals("submit_edit")) {
      // get the existing text from the file
      news = newsService.readNewsFile(position);

      // pass the position back to the JSP
      request.setAttribute("position", position);

      // pass the existing news back to the JSP
      request.setAttribute("news", news);

      // show news edit page
      JSPManager.showJSP(request, response, "/dspace-admin/news-edit.jsp");
    } else if (button.equals("submit_save")) {
      // get text string from form
      news = (String) request.getParameter("news");

      // write the string out to file
      newsService.writeNewsFile(position, news);

      JSPManager.showJSP(request, response, "/dspace-admin/news-main.jsp");
    } else {
      // the user hit cancel, so return to the main news edit page
      JSPManager.showJSP(request, response, "/dspace-admin/news-main.jsp");
    }

    c.complete();
  }
  /**
   * validate the submitted form to ensure that there is not a supervision order for this already.
   *
   * @param context the context of the request
   * @param request the servlet request
   * @param response the servlet response
   */
  private boolean validateAddForm(
      Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    int groupID = UIUtil.getIntParameter(request, "TargetGroup");
    int wsItemID = UIUtil.getIntParameter(request, "TargetWSItem");

    boolean invalid = Supervisor.isOrder(context, wsItemID, groupID);

    if (invalid) {
      JSPManager.showJSP(request, response, "/dspace-admin/supervise-duplicate.jsp");
      return false;
    } else {
      return true;
    }
  }
  /**
   * Displays the form to link groups to workspace items
   *
   * @param context the context of the request
   * @param request the servlet request
   * @param response the servlet response
   */
  private void showLinkPage(
      Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    // get all the groups
    Group[] groups = Group.findAll(context, 1);

    // get all the workspace items
    WorkspaceItem[] wsItems = WorkspaceItem.findAll(context);

    // set the attributes for the JSP
    request.setAttribute("groups", groups);
    request.setAttribute("wsItems", wsItems);

    JSPManager.showJSP(request, response, "/dspace-admin/supervise-link.jsp");
  }
  /**
   * Show a community home page, or deal with button press on home page
   *
   * @param context Context object
   * @param request the HTTP request
   * @param response the HTTP response
   * @param community the community
   */
  private void communityHome(
      Context context,
      HttpServletRequest request,
      HttpServletResponse response,
      Community community)
      throws ServletException, IOException, SQLException {
    // Handle click on a browse or search button
    if (!handleButton(request, response, IdentifierService.getURL(community))) {
      // No button pressed, display community home page
      log.info(
          LogManager.getHeader(context, "view_community", "community_id=" + community.getID()));

      // Get the collections within the community
      Collection[] collections = (Collection[]) community.getCollections().toArray();

      // get any subcommunities of the community
      Community[] subcommunities = (Community[]) community.getSubCommunities().toArray();

      // perform any necessary pre-processing
      preProcessCommunityHome(context, request, response, community);

      // is the user a COMMUNITY_EDITOR?
      //            if (community.canEditBoolean())
      if (AuthorizeManager.canEdit(community, context)) {
        // set a variable to create an edit button
        request.setAttribute("editor_button", new Boolean(true));
      }

      // can they add to this community?
      if (AuthorizeManager.authorizeActionBoolean(context, community, Constants.ADD)) {
        // set a variable to create an edit button
        request.setAttribute("add_button", new Boolean(true));
      }

      // can they remove from this community?
      if (AuthorizeManager.authorizeActionBoolean(context, community, Constants.REMOVE)) {
        // set a variable to create an edit button
        request.setAttribute("remove_button", new Boolean(true));
      }

      // Forward to community home page
      request.setAttribute("community", community);
      request.setAttribute("collections", collections);
      request.setAttribute("subcommunities", subcommunities);
      JSPManager.showJSP(request, response, "/community-home.jsp");
    }
  }
  /**
   * Confirms the removal of a supervision order
   *
   * @param context the context of the request
   * @param request the servlet request
   * @param response the servlet response
   */
  private void showConfirmRemovePage(
      Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    // get the values from the request
    int wsItemID = UIUtil.getIntParameter(request, "siID");
    int groupID = UIUtil.getIntParameter(request, "gID");

    // get the workspace item and the group from the request values
    WorkspaceItem wsItem = WorkspaceItem.find(context, wsItemID);
    Group group = Group.find(context, groupID);

    // set the attributes for the JSP
    request.setAttribute("wsItem", wsItem);
    request.setAttribute("group", group);

    JSPManager.showJSP(request, response, "/dspace-admin/supervise-confirm-remove.jsp");
  }
  protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    // Are we for selecting a single or multiple groups?
    boolean multiple = UIUtil.getBoolParameter(request, "multiple");

    // What's the index of the first group to show?  Default is 0
    int first = UIUtil.getIntParameter(request, "first");
    if (first == -1) first = 0;

    // What are we sorting by?  Name is default
    //		int sortBy = Group.NAME;
    //		int sortBy = 1;

    String sbParam = request.getParameter("sortby");
    Group[] groups;
    if (sbParam != null && sbParam.equals("id")) {
      //			sortBy = Group.ID;
      //		    sortBy = 0;
      groups = (Group[]) ApplicationService.findAllGroupsSortedById(context).toArray();
      request.setAttribute("sortby", 0);
    } else {
      groups = (Group[]) ApplicationService.findAllGroupsSortedByName(context).toArray();
      request.setAttribute("sortby", 1);
    }

    // Retrieve the e-people in the specified order
    //		Group[] groups = Group.findAll(context, sortBy);

    // Set attributes for JSP
    //		request.setAttribute("sortby", new Integer(sortBy));
    request.setAttribute("first", new Integer(first));
    request.setAttribute("groups", groups);
    if (multiple) {
      request.setAttribute("multiple", new Boolean(true));
    }

    JSPManager.showJSP(request, response, "/tools/group-select-list.jsp");
  }
Пример #13
0
  protected void doDSPost(Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    // Process the POSTed email and password
    String netid = request.getParameter("login_netid");
    String password = request.getParameter("login_password");
    String jsp = null;

    // Locate the eperson
    int status = AuthenticationManager.authenticate(context, netid, password, null, request);

    if (status == AuthenticationMethod.SUCCESS) {
      // Logged in OK.
      Authenticate.loggedIn(context, request, context.getCurrentUser());

      // Set the Locale according to user preferences
      Locale epersonLocale = I18nUtil.getEPersonLocale(context.getCurrentUser());
      context.setCurrentLocale(epersonLocale);
      Config.set(request.getSession(), Config.FMT_LOCALE, epersonLocale);

      log.info(LogManager.getHeader(context, "login", "type=explicit"));

      // resume previous request
      Authenticate.resumeInterruptedRequest(request, response);

      return;
    } else if (status == AuthenticationMethod.CERT_REQUIRED) {
      jsp = "/error/require-certificate.jsp";
    } else {
      jsp = "/login/incorrect.jsp";
    }

    // If we reach here, supplied email/password was duff.
    log.info(
        LogManager.getHeader(
            context, "failed_login", "netid=" + netid + ", result=" + String.valueOf(status)));
    JSPManager.showJSP(request, response, jsp);
  }
Пример #14
0
  /**
   * GET request is only ever used to show the upload form
   *
   * @param context a DSpace Context object
   * @param request the HTTP request
   * @param response the HTTP response
   * @throws ServletException
   * @throws IOException
   * @throws SQLException
   * @throws AuthorizeException
   */
  @Override
  protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    // Get all collections
    List<Collection> collections = null;
    String colIdS = request.getParameter("colId");
    if (colIdS != null) {
      collections = new ArrayList<>();
      collections.add(collectionService.findByIdOrLegacyId(context, colIdS));

    } else {
      collections = collectionService.findAll(context);
    }

    request.setAttribute("collections", collections);

    // Get all the possible data loaders from the Spring configuration
    BTEBatchImportService dls = new DSpace().getSingletonService(BTEBatchImportService.class);
    List<String> inputTypes = dls.getFileDataLoaders();
    request.setAttribute("input-types", inputTypes);

    // Show the upload screen
    JSPManager.showJSP(request, response, "/dspace-admin/batchimport.jsp");
  }
  /**
   * Show an item page
   *
   * @param context Context object
   * @param request the HTTP request
   * @param response the HTTP response
   * @param item the item
   * @param identifier a persistent identifier that belongs to the item
   */
  private void displayItem(
      Context context, HttpServletRequest request, HttpServletResponse response, Item item)
      throws ServletException, IOException, SQLException, AuthorizeException {
    // Tombstone?
    if (item.isWithdrawn()) {
      JSPManager.showJSP(request, response, "/tombstone.jsp");

      return;
    }

    // Ensure the user has authorisation
    AuthorizeManager.authorizeAction(context, item, Constants.READ);

    log.info(
        LogManager.getHeader(
            context, "view_item", "uri=" + item.getIdentifier().getCanonicalForm()));

    // show edit link
    if (item.canEdit()) {
      // set a variable to create an edit button
      request.setAttribute("admin_button", new Boolean(true));
    }

    // Get the collections
    Collection[] collections = (Collection[]) item.getCollections().toArray();

    // For the breadcrumbs, get the first collection and the first community
    // that is in. FIXME: Not multiple-inclusion friendly--should be
    // smarter, context-sensitive
    request.setAttribute("dspace.collection", item.getOwningCollection());

    Collection collection = item.getOwningCollection();
    if (collection != null) {
      Community[] comms = (Community[]) collection.getCommunities().toArray();
      if (comms.length > 0) {
        request.setAttribute("dspace.community", comms[0]);

        /*
         * Find all the "parent" communities for the collection
         */
        request.setAttribute("dspace.communities", getParents(comms[0], true));
      }
    }

    // Full or simple display?
    boolean displayAll = false;
    String modeParam = request.getParameter("mode");

    if ((modeParam != null) && modeParam.equalsIgnoreCase("full")) {
      displayAll = true;
    }

    // Enable suggest link or not
    boolean suggestEnable = false;
    if (!ConfigurationManager.getBooleanProperty("webui.suggest.enable")) {
      // do nothing, the suggestLink is allready set to false
    } else {
      // it is in general enabled
      suggestEnable = true;

      // check for the enable only for logged in users option
      if (!ConfigurationManager.getBooleanProperty("webui.suggest.loggedinusers.only")) {
        // do nothing, the suggestLink stays as it is
      } else {
        // check whether there is a logged in user
        suggestEnable = (context.getCurrentUser() == null ? false : true);
      }
    }

    // Set attributes and display
    request.setAttribute("suggest.enable", new Boolean(suggestEnable));
    request.setAttribute("display.all", new Boolean(displayAll));
    request.setAttribute("item", item);
    request.setAttribute("collections", collections);
    JSPManager.showJSP(request, response, "/display-item.jsp");
  }
Пример #16
0
  protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    includeAll = ConfigurationManager.getBooleanProperty("harvest.includerestricted.rss", true);
    String path = request.getPathInfo();
    String feedType = null;
    String handle = null;

    // build label map from localized Messages resource bundle
    Locale locale = request.getLocale();
    ResourceBundle msgs = ResourceBundle.getBundle("Messages", locale);
    Map<String, String> labelMap = new HashMap<String, String>();
    labelMap.put(SyndicationFeed.MSG_UNTITLED, msgs.getString(clazz + ".notitle"));
    labelMap.put(SyndicationFeed.MSG_LOGO_TITLE, msgs.getString(clazz + ".logo.title"));
    labelMap.put(
        SyndicationFeed.MSG_FEED_DESCRIPTION, msgs.getString(clazz + ".general-feed.description"));
    labelMap.put(SyndicationFeed.MSG_UITYPE, SyndicationFeed.UITYPE_JSPUI);
    for (String selector : SyndicationFeed.getDescriptionSelectors()) {
      labelMap.put("metadata." + selector, msgs.getString(SyndicationFeed.MSG_METADATA + selector));
    }

    if (path != null) {
      // substring(1) is to remove initial '/'
      path = path.substring(1);
      int split = path.indexOf('/');
      if (split != -1) {
        feedType = path.substring(0, split);
        handle = path.substring(split + 1);
      }
    }

    DSpaceObject dso = null;

    // as long as this is not a site wide feed,
    // attempt to retrieve the Collection or Community object
    if (handle != null && !handle.equals(SITE_FEED_KEY)) {
      // Determine if handle is a valid reference
      dso = HandleManager.resolveToObject(context, handle);
      if (dso == null) {
        log.info(LogManager.getHeader(context, "invalid_handle", "path=" + path));
        JSPManager.showInvalidIDError(request, response, handle, -1);
        return;
      }
    }

    if (!enabled
        || (dso != null
            && (dso.getType() != Constants.COLLECTION && dso.getType() != Constants.COMMUNITY))) {
      log.info(LogManager.getHeader(context, "invalid_id", "path=" + path));
      JSPManager.showInvalidIDError(request, response, path, -1);
      return;
    }

    // Determine if requested format is supported
    if (feedType == null || !formats.contains(feedType)) {
      log.info(LogManager.getHeader(context, "invalid_syndformat", "path=" + path));
      JSPManager.showInvalidIDError(request, response, path, -1);
      return;
    }

    if (dso != null && dso.getType() == Constants.COLLECTION) {
      labelMap.put(
          SyndicationFeed.MSG_FEED_TITLE,
          MessageFormat.format(
              msgs.getString(clazz + ".feed.title"),
              msgs.getString(clazz + ".feed-type.collection"),
              dso.getMetadata("short_description")));
    } else if (dso != null && dso.getType() == Constants.COMMUNITY) {
      labelMap.put(
          SyndicationFeed.MSG_FEED_TITLE,
          MessageFormat.format(
              msgs.getString(clazz + ".feed.title"),
              msgs.getString(clazz + ".feed-type.community"),
              dso.getMetadata("short_description")));
    }

    // Lookup or generate the feed
    // Cache key is handle + locale
    String cacheKey = (handle == null ? "site" : handle) + "." + locale.toString();
    SyndicationFeed feed = null;
    if (feedCache != null) {
      CacheFeed cFeed = feedCache.get(cacheKey);
      if (cFeed != null) // cache hit, but...
      {
        // Is the feed current?
        boolean cacheFeedCurrent = false;
        if (cFeed.timeStamp + (cacheAge * HOUR_MSECS) < System.currentTimeMillis()) {
          cacheFeedCurrent = true;
        }
        // Not current, but have any items changed since feed was created/last checked?
        else if (!itemsChanged(context, dso, cFeed.timeStamp)) {
          // no items have changed, re-stamp feed and use it
          cFeed.timeStamp = System.currentTimeMillis();
          cacheFeedCurrent = true;
        }
        if (cacheFeedCurrent) {
          feed = cFeed.access();
        }
      }
    }

    // either not caching, not found in cache, or feed in cache not current
    if (feed == null) {
      feed = new SyndicationFeed(SyndicationFeed.UITYPE_JSPUI);
      feed.populate(request, dso, getItems(context, dso), labelMap);
      if (feedCache != null) {
        cache(cacheKey, new CacheFeed(feed));
      }
    }

    // set the feed to the requested type & return it
    try {
      feed.setType(feedType);
      response.setContentType("text/xml; charset=UTF-8");
      feed.output(response.getWriter());
    } catch (FeedException fex) {
      throw new IOException(fex.getMessage(), fex);
    }
  }
Пример #17
0
  protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    ExternalIdentifierDAO identifierDAO = ExternalIdentifierDAOFactory.getInstance(context);

    Item item = null;
    Bitstream bitstream = null;

    String idString = request.getPathInfo();
    String filenameNoPath = null;
    String fullpath = null;
    String uri = null;

    // Parse URL
    if (idString != null) {
      // Remove leading slash
      if (idString.startsWith("/")) {
        idString = idString.substring(1);
      }

      // Get uri and full file path
      int slashIndex = idString.indexOf('/');
      if (slashIndex != -1) {
        slashIndex = idString.indexOf('/', slashIndex + 1);
        if (slashIndex != -1) {
          uri = idString.substring(0, slashIndex);
          fullpath =
              URLDecoder.decode(idString.substring(slashIndex + 1), Constants.DEFAULT_ENCODING);

          // Get filename with no path
          slashIndex = fullpath.indexOf('/');
          if (slashIndex != -1) {
            String[] pathComponents = fullpath.split("/");
            if (pathComponents.length <= maxDepthGuess + 1) {
              filenameNoPath = pathComponents[pathComponents.length - 1];
            }
          }
        }
      }
    }

    if (uri != null && fullpath != null) {
      // Find the item
      try {
        /*
         * If the original item doesn't have a persistent identifier
         * yet (because it's in the workflow) what we actually have is
         * a URL of the form: db-id/1234 where 1234 is the database ID
         * of the item.
         *
         * FIXME: This first part could be totally omitted now that we
         * have the dsi:x/y format of identification.
         */
        if (uri.startsWith("db-id")) {
          String dbIDString = uri.substring(uri.indexOf('/') + 1);
          int dbID = Integer.parseInt(dbIDString);
          item = ItemDAOFactory.getInstance(context).retrieve(dbID);
        } else {
          ExternalIdentifier identifier = identifierDAO.retrieve(uri);
          ObjectIdentifier oi = identifier.getObjectIdentifier();
          item = (Item) oi.getObject(context);
        }
      } catch (NumberFormatException nfe) {
        // Invalid ID - this will be dealt with below
      }
    }

    if (item != null) {
      // Try to find bitstream with exactly matching name + path
      bitstream = getItemBitstreamByName(item, fullpath);

      if (bitstream == null && filenameNoPath != null) {
        // No match with the full path, but we can try again with
        // only the filename
        bitstream = getItemBitstreamByName(item, filenameNoPath);
      }
    }

    // Did we get a bitstream?
    if (bitstream != null) {
      log.info(
          LogManager.getHeader(
              context, "view_html", "uri=" + uri + ",bitstream_id=" + bitstream.getID()));

      // Set the response MIME type
      response.setContentType(bitstream.getFormat().getMIMEType());

      // Response length
      response.setHeader("Content-Length", String.valueOf(bitstream.getSize()));

      // Pipe the bits
      InputStream is = bitstream.retrieve();

      Utils.bufferedCopy(is, response.getOutputStream());
      is.close();
      response.getOutputStream().flush();
    } else {
      // No bitstream - we got an invalid ID
      log.info(LogManager.getHeader(context, "view_html", "invalid_bitstream_id=" + idString));

      JSPManager.showInvalidIDError(request, response, idString, Constants.BITSTREAM);
    }
  }
Пример #18
0
  /**
   * Respond to a post request for metadata bulk importing via csv
   *
   * @param context a DSpace Context object
   * @param request the HTTP request
   * @param response the HTTP response
   * @throws ServletException
   * @throws IOException
   * @throws SQLException
   * @throws AuthorizeException
   */
  @Override
  protected void doDSPost(Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {

    // First, see if we have a multipart request (uploading a metadata file)
    String contentType = request.getContentType();
    if ((contentType != null) && (contentType.indexOf("multipart/form-data") != -1)) {
      String message = null;

      // Process the file uploaded
      try {
        // Wrap multipart request to get the submission info
        FileUploadRequest wrapper = new FileUploadRequest(request);

        String inputType = wrapper.getParameter("inputType");
        List<String> reqCollectionsTmp =
            getRepeatedParameter(wrapper, "collections", "collections");
        String[] reqCollections = new String[reqCollectionsTmp.size()];
        reqCollectionsTmp.toArray(reqCollections);

        // Get all collections
        List<Collection> collections = null;
        String colIdS = wrapper.getParameter("colId");
        if (colIdS != null) {
          collections = new ArrayList<>();
          collections.add(collectionService.findByIdOrLegacyId(context, colIdS));

        } else {
          collections = collectionService.findAll(context);
        }
        request.setAttribute("collections", collections);

        Collection owningCollection = null;
        if (wrapper.getParameter("collection") != null) {
          owningCollection =
              collectionService.findByIdOrLegacyId(context, wrapper.getParameter("collection"));
        }

        // Get all the possible data loaders from the Spring configuration
        BTEBatchImportService dls = new DSpace().getSingletonService(BTEBatchImportService.class);
        List<String> inputTypes = dls.getFileDataLoaders();
        request.setAttribute("input-types", inputTypes);

        if (reqCollectionsTmp != null) request.setAttribute("otherCollections", reqCollectionsTmp);
        if (owningCollection != null)
          request.setAttribute("owningCollection", owningCollection.getID());
        request.setAttribute("inputType", inputType);

        File f = null;
        String zipurl = null;

        if (inputType.equals("saf")) {
          zipurl = wrapper.getParameter("zipurl");
          if (StringUtils.isEmpty(zipurl)) {
            request.setAttribute("has-error", "true");
            Locale locale = request.getLocale();
            ResourceBundle msgs = ResourceBundle.getBundle("Messages", locale);
            try {
              message = msgs.getString("jsp.layout.navbar-admin.batchimport.fileurlempty");
            } catch (Exception e) {
              message = "???jsp.layout.navbar-admin.batchimport.fileurlempty???";
            }

            request.setAttribute("message", message);

            JSPManager.showJSP(request, response, "/dspace-admin/batchimport.jsp");

            return;
          }
        } else {
          f = wrapper.getFile("file");
          if (f == null) {
            request.setAttribute("has-error", "true");
            Locale locale = request.getLocale();
            ResourceBundle msgs = ResourceBundle.getBundle("Messages", locale);
            try {
              message = msgs.getString("jsp.layout.navbar-admin.batchimport.fileempty");
            } catch (Exception e) {
              message = "???jsp.layout.navbar-admin.batchimport.fileempty???";
            }

            request.setAttribute("message", message);

            JSPManager.showJSP(request, response, "/dspace-admin/batchimport.jsp");

            return;
          } else if (owningCollection == null) {
            request.setAttribute("has-error", "true");
            Locale locale = request.getLocale();
            ResourceBundle msgs = ResourceBundle.getBundle("Messages", locale);
            try {
              message = msgs.getString("jsp.layout.navbar-admin.batchimport.owningcollectionempty");
            } catch (Exception e) {
              message = "???jsp.layout.navbar-admin.batchimport.owningcollectionempty???";
            }

            request.setAttribute("message", message);

            JSPManager.showJSP(request, response, "/dspace-admin/batchimport.jsp");

            return;
          }
        }

        String uploadId = wrapper.getParameter("uploadId");
        if (uploadId != null) {
          request.setAttribute("uploadId", uploadId);
        }

        if (owningCollection == null && reqCollections != null && reqCollections.length > 0) {
          request.setAttribute("has-error", "true");

          Locale locale = request.getLocale();
          ResourceBundle msgs = ResourceBundle.getBundle("Messages", locale);
          String ms = msgs.getString("jsp.layout.navbar-admin.batchimport.owningcollection");
          if (ms == null) {
            ms = "???jsp.layout.navbar-admin.batchimport.owningcollection???";
          }
          request.setAttribute("message", ms);

          JSPManager.showJSP(request, response, "/dspace-admin/batchimport.jsp");

          return;
        }

        try {
          String finalInputType = "saf";
          String filePath = zipurl;
          if (f != null) {
            finalInputType = inputType;
            filePath = f.getAbsolutePath();
          }

          itemImportService.processUIImport(
              filePath, owningCollection, reqCollections, uploadId, finalInputType, context, true);

          request.setAttribute("has-error", "false");
          request.setAttribute("uploadId", null);

        } catch (Exception e) {
          request.setAttribute("has-error", "true");
          message = e.getMessage();
          e.printStackTrace();
        }
      } catch (FileSizeLimitExceededException e) {
        request.setAttribute("has-error", "true");
        message = e.getMessage();
        e.printStackTrace();
      } catch (Exception e) {
        request.setAttribute("has-error", "true");
        message = e.getMessage();
        e.printStackTrace();
      }

      request.setAttribute("message", message);

      // Show the upload screen
      JSPManager.showJSP(request, response, "/dspace-admin/batchimport.jsp");

    } else {
      request.setAttribute("has-error", "true");

      // Show the upload screen
      JSPManager.showJSP(request, response, "/dspace-admin/batchimport.jsp");
    }
  }
  @Override
  protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {

    response.setCharacterEncoding("UTF-8");
    request.setCharacterEncoding("UTF-8");

    if (!AuthorizeManager.isAdmin(context)) {
      throw new AuthorizeException("Вы должны быть администратором просматривать журнал импорта");
    }

    String area = request.getParameter("area");
    String action = request.getParameter("action");

    String dateStr = request.getParameter("date");
    Date date = null;
    try {
      if (dateStr != null) {
        DateFormat df = new SimpleDateFormat("dd.MM.yyyy");
        date = df.parse(dateStr);
      }
    } catch (Exception e) {
    }

    if (area != null && area.equals("errors")) {
      if (date == null) {
        date = ImportErrorLog.getLastDate(context);
        if (date == null) date = Calendar.getInstance().getTime();
      }
    } else {
      if (date == null) {
        date = ImportLog.getLastDate(context);
        if (date == null) date = Calendar.getInstance().getTime();
      }
    }
    request.setAttribute("date", date);

    if (area != null && area.equals("errors")) {
      if (action == null) {
        JSPManager.showJSP(request, response, "/importlog/errors.jsp");
      } else {
        String id = request.getParameter("id");
        Integer page =
            request.getParameter("page") != null
                ? Integer.valueOf(request.getParameter("page"))
                : 1;
        JsonObject json = new JsonObject();
        JsonArray items = new JsonArray();
        String[] ids = ImportErrorLog.getReportsId(context, date);
        if (id == null && ids.length > 0) {
          id = ids[0];
        }
        for (int i = 0; i < ids.length; i++) {
          if (ids[i].equals(id)) {
            String prevId = null;
            String nextId = null;
            if (i > 0) {
              prevId = ids[i - 1];
            }
            if (i < (ids.length - 1)) {
              nextId = ids[i + 1];
            }
            json.addProperty("prevId", prevId);
            json.addProperty("nextId", nextId);
          }
        }

        if (id != null) {
          int limit = 100;
          int offset = (page - 1) * limit;
          ImportErrorLog[] report = ImportErrorLog.getReport(context, id, offset, limit);
          for (ImportErrorLog record : report) {
            items.add(new JsonPrimitive(record.getFile()));
          }
          json.addProperty("page", page);

          if (offset == 0) {
            int count = ImportErrorLog.getReportLength(context, id);
            json.addProperty("count", count);
            json.addProperty(
                "pages",
                Math.ceil(
                    Integer.valueOf(count).doubleValue() / Integer.valueOf(limit).doubleValue()));
            DateFormat df = new SimpleDateFormat("dd.MM.yyyy HH:mm");
            json.addProperty("firstDate", df.format(report[0].getDate()));
          }
        }
        json.add("items", items);
        json.addProperty("id", id);
        response.setContentType("application/json");
        response.getWriter().write(json.toString());
      }
    } else {
      if (action == null) {
        JSPManager.showJSP(request, response, "/importlog/log.jsp");
      } else {
        String id = request.getParameter("id");
        Integer page =
            request.getParameter("page") != null
                ? Integer.valueOf(request.getParameter("page"))
                : 1;
        JsonObject json = new JsonObject();
        JsonArray items = new JsonArray();
        String[] ids = ImportLog.getReportsId(context, date);
        if (id == null && ids.length > 0) {
          id = ids[0];
        }
        for (int i = 0; i < ids.length; i++) {
          if (ids[i].equals(id)) {
            String prevId = null;
            String nextId = null;
            if (i > 0) {
              prevId = ids[i - 1];
            }
            if (i < (ids.length - 1)) {
              nextId = ids[i + 1];
            }
            json.addProperty("prevId", prevId);
            json.addProperty("nextId", nextId);
          }
        }
        if (id != null) {
          int limit = 100;
          int offset = (page - 1) * limit;
          ImportLog[] report = ImportLog.getReport(context, id, offset, limit);
          for (ImportLog record : report) {
            JsonObject recordJson = new JsonObject();
            recordJson.addProperty("year", record.getYear());
            recordJson.addProperty("name", record.getName());
            recordJson.addProperty("authors", record.getAuthors());
            Item item = record.getItem(context);
            String link =
                (item != null ? request.getContextPath() + "/handle/" + item.getHandle() : null);
            recordJson.addProperty("link", link);
            recordJson.addProperty("duplicate", record.getDuplicate());
            items.add(recordJson);
          }
          json.addProperty("page", page);

          if (offset == 0) {
            int count = ImportLog.getReportLength(context, id);
            json.addProperty("count", count);
            json.addProperty(
                "pages",
                Math.ceil(
                    Integer.valueOf(count).doubleValue() / Integer.valueOf(limit).doubleValue()));
            DateFormat df = new SimpleDateFormat("dd.MM.yyyy HH:mm");
            json.addProperty("firstDate", df.format(report[0].getDate()));
          }
        }
        json.add("items", items);
        json.addProperty("id", id);
        response.setContentType("application/json");
        response.getWriter().write(json.toString());
      }
    }
  }
Пример #20
0
  protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    // Obtain information from request
    // The page where the user came from
    String fromPage = request.getHeader("Referer");

    // Prevent spammers and splogbots from poisoning the feedback page
    String host = ConfigurationManager.getProperty("dspace.hostname");

    String basicHost = "";
    if (host.equals("localhost")
        || host.equals("127.0.0.1")
        || host.equals(InetAddress.getLocalHost().getHostAddress())) basicHost = host;
    else {
      // cut off all but the hostname, to cover cases where more than one URL
      // arrives at the installation; e.g. presence or absence of "www"
      int lastDot = host.lastIndexOf(".");
      basicHost = host.substring(host.substring(0, lastDot).lastIndexOf("."));
    }

    if (fromPage == null || fromPage.indexOf(basicHost) == -1) {
      throw new AuthorizeException();
    }

    // The email address they provided
    String formEmail = request.getParameter("email");

    // Browser
    String userAgent = request.getHeader("User-Agent");

    // Session id
    String sessionID = request.getSession().getId();

    // User email from context
    EPerson currentUser = context.getCurrentUser();
    String authEmail = null;

    if (currentUser != null) {
      authEmail = currentUser.getEmail();
    }

    // Has the user just posted their feedback?
    if (request.getParameter("submit") != null) {
      EmailValidator ev = EmailValidator.getInstance();
      String feedback = request.getParameter("feedback");

      // Check all data is there
      if ((formEmail == null)
          || formEmail.equals("")
          || (feedback == null)
          || feedback.equals("")
          || !ev.isValid(formEmail)) {
        log.info(LogManager.getHeader(context, "show_feedback_form", "problem=true"));
        request.setAttribute("feedback.problem", new Boolean(true));
        JSPManager.showJSP(request, response, "/feedback/form.jsp");

        return;
      }

      // All data is there, send the email
      try {
        Email email =
            ConfigurationManager.getEmail(
                I18nUtil.getEmailFilename(context.getCurrentLocale(), "feedback"));
        email.addRecipient(ConfigurationManager.getProperty("feedback.recipient"));

        email.addArgument(new Date()); // Date
        email.addArgument(formEmail); // Email
        email.addArgument(authEmail); // Logged in as
        email.addArgument(fromPage); // Referring page
        email.addArgument(userAgent); // User agent
        email.addArgument(sessionID); // Session ID
        email.addArgument(feedback); // The feedback itself

        // Replying to feedback will reply to email on form
        email.setReplyTo(formEmail);

        email.send();

        log.info(LogManager.getHeader(context, "sent_feedback", "from=" + formEmail));

        JSPManager.showJSP(request, response, "/feedback/acknowledge.jsp");
      } catch (MessagingException me) {
        log.warn(LogManager.getHeader(context, "error_mailing_feedback", ""), me);

        JSPManager.showInternalError(request, response);
      }
    } else {
      // Display feedback form
      log.info(LogManager.getHeader(context, "show_feedback_form", "problem=false"));
      request.setAttribute("authenticated.email", authEmail);
      JSPManager.showJSP(request, response, "/feedback/form.jsp");
    }
  }
  /**
   * Show a collection home page, or deal with button press on home page
   *
   * @param context Context object
   * @param request the HTTP request
   * @param response the HTTP response
   * @param community the community
   * @param collection the collection
   */
  private void collectionHome(
      Context context,
      HttpServletRequest request,
      HttpServletResponse response,
      Community community,
      Collection collection)
      throws ServletException, IOException, SQLException, AuthorizeException {
    // Handle click on a browse or search button
    if (!handleButton(request, response, IdentifierService.getURL(community))) {
      // Will need to know whether to commit to DB
      boolean updated = false;

      // No search or browse button pressed, check for
      if (request.getParameter("submit_subscribe") != null) {
        // Subscribe button pressed.
        // Only registered can subscribe, so redirect unless logged in.
        if (context.getCurrentUser() == null
            && !Authenticate.startAuthentication(context, request, response)) return;
        else {
          SubscriptionManager.subscribe(context, context.getCurrentUser(), collection);
          updated = true;
        }
      } else if (request.getParameter("submit_unsubscribe") != null) {
        SubscriptionManager.unsubscribe(context, context.getCurrentUser(), collection);
        updated = true;
      }

      // display collection home page
      log.info(
          LogManager.getHeader(context, "view_collection", "collection_id=" + collection.getID()));

      // perform any necessary pre-processing
      preProcessCollectionHome(context, request, response, collection);

      // Is the user logged in/subscribed?
      EPerson e = context.getCurrentUser();
      boolean subscribed = false;

      if (e != null) {
        subscribed = SubscriptionManager.isSubscribed(context, e, collection);

        // is the user a COLLECTION_EDITOR?
        //                if (collection.canEditBoolean())
        if (AuthorizeManager.canEdit(collection, context)) {
          // set a variable to create an edit button
          request.setAttribute("editor_button", new Boolean(true));
        }

        // can they admin this collection?
        if (AuthorizeManager.authorizeActionBoolean(
            context, collection, Constants.COLLECTION_ADMIN)) {
          request.setAttribute("admin_button", new Boolean(true));

          // give them a button to manage submitter list
          // what group is the submitter?
          Group group = collection.getSubmitters();

          if (group != null) {
            request.setAttribute("submitters", group);
          }
        }

        // can they submit to this collection?
        if (AuthorizeManager.authorizeActionBoolean(context, collection, Constants.ADD)) {
          request.setAttribute("can_submit_button", new Boolean(true));

        } else {
          request.setAttribute("can_submit_button", new Boolean(false));
        }
      }

      // Forward to collection home page
      request.setAttribute("collection", collection);
      request.setAttribute("community", community);
      request.setAttribute("logged.in", new Boolean(e != null));
      request.setAttribute("subscribed", new Boolean(subscribed));
      JSPManager.showJSP(request, response, "/collection-home.jsp");

      if (updated) {
        context.complete();
      }
    }
  }
Пример #22
0
  protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    // We will resolve the HTTP request parameters into a scope
    BrowseScope scope = new BrowseScope(context);

    // Will need to know whether to highlight the "focus" point
    boolean highlight = false;

    // Build up log information
    String logInfo = "";

    // For browse by date, we'll need to work out the URL query string to
    // use when the user swaps the ordering, so that they stay at the same
    // point in the index
    String flipOrderingQuery = "";

    // Grab HTTP request parameters
    String focus = request.getParameter("focus");
    String startsWith = request.getParameter("starts_with");
    String top = request.getParameter("top");
    String bottom = request.getParameter("bottom");

    // The following three are specific to browsing items by date
    String month = request.getParameter("month");
    String year = request.getParameter("year");
    String order = request.getParameter("order");

    // For browse by date: oldest item first?
    boolean oldestFirst = false;

    if ((order != null) && order.equalsIgnoreCase("oldestfirst")) {
      oldestFirst = true;
    }

    if (browseDates
        && (year != null)
        && !year.equals("")
        && ((startsWith == null) || startsWith.equals(""))) {
      // We're browsing items by date, the user hasn't typed anything
      // into the "year" text box, and they've selected a year from
      // the drop-down list. From this we work out where to start
      // the browse.
      startsWith = year;

      if ((month != null) & !month.equals("-1")) {
        // They've selected a month as well
        if (month.length() == 1) {
          // Ensure double-digit month number
          month = "0" + month;
        }

        startsWith = year + "-" + month;
      }
    }

    // Set the scope according to the parameters passed in
    if (focus != null) {
      // ----------------------------------------------
      // Browse should start at a specified focus point
      // ----------------------------------------------
      if (browseAuthors || browseSubjects) {
        // For browsing authors, focus is just a text value
        scope.setFocus(focus);
      } else {
        // For browsing items by title or date, focus is a Handle
        Item item = (Item) HandleManager.resolveToObject(context, focus);

        if (item == null) {
          // Handle is invalid one. Show an error.
          JSPManager.showInvalidIDError(request, response, focus, Constants.ITEM);

          return;
        }

        scope.setFocus(item);
      }

      // Will need to highlight the focus
      highlight = true;

      logInfo = "focus=" + focus + ",";

      if (browseDates) {
        // if the date order is flipped, we'll keep the same focus
        flipOrderingQuery =
            "focus=" + URLEncoder.encode(focus, Constants.DEFAULT_ENCODING) + "&amp;";
      }
    } else if (startsWith != null) {
      // ----------------------------------------------
      // Start the browse using user-specified text
      // ----------------------------------------------
      if (browseDates) {
        // if the date order is flipped, we'll keep the same focus
        flipOrderingQuery =
            "starts_with=" + URLEncoder.encode(startsWith, Constants.DEFAULT_ENCODING) + "&amp;";

        /*
         * When the user is browsing with the most recent items first,
         * the browse code algorithm doesn't quite do what some people
         * might expect. For example, if in the index there are entries:
         *
         * Mar-2000 15-Feb-2000 6-Feb-2000 15-Jan-2000
         *
         * and the user has selected "Feb 2000" as the start point for
         * the browse, the browse algorithm will start at the first
         * point in that index *after* "Feb 2000". "Feb 2000" would
         * appear in the index above between 6-Feb-2000 and 15-Jan-2000.
         * So, the browse code in this case will start the browse at
         * "15-Jan-2000". This isn't really what users are likely to
         * want: They're more likely to want the browse to start at the
         * first Feb 2000 date, i.e. 15-Feb-2000. A similar scenario
         * occurs when the user enters just a year. Our quick hack to
         * produce this behaviour is to add "-32" to the startsWith
         * variable, when sorting with most recent items first. This
         * means the browse code starts at the topmost item in the index
         * that matches the user's input, rather than the point in the
         * index where the user's input would appear.
         */
        if (!oldestFirst) {
          startsWith = startsWith + "-32";
        }
      }

      scope.setFocus(startsWith);
      highlight = true;
      logInfo = "starts_with=" + startsWith + ",";
    } else if ((top != null) || (bottom != null)) {
      // ----------------------------------------------
      // Paginating: put specified entry at top or bottom
      // ----------------------------------------------
      // Use a single value and a boolean to simplify the code below
      String val = bottom;
      boolean isTop = false;

      if (top != null) {
        val = top;
        isTop = true;
      }

      if (browseAuthors || browseSubjects) {
        // Value will be a text value for author browse
        scope.setFocus(val);
      } else {
        // Value is Handle if we're browsing items by title or date
        Item item = (Item) HandleManager.resolveToObject(context, val);

        if (item == null) {
          // Handle is invalid one. Show an error.
          JSPManager.showInvalidIDError(request, response, focus, Constants.ITEM);

          return;
        }

        scope.setFocus(item);
      }

      // This entry appears at the top or bottom, and so needs to have
      // 0 or 20 entries shown before it
      scope.setNumberBefore(isTop ? 0 : 20);

      logInfo = (isTop ? "top" : "bottom") + "=" + val + ",";

      if (browseDates) {
        // If the date order is flipped, we'll flip the table upside
        // down - i.e. the top will become the bottom and the bottom
        // the top.
        if (top != null) {
          flipOrderingQuery =
              "bottom=" + URLEncoder.encode(top, Constants.DEFAULT_ENCODING) + "&amp;";
        } else {
          flipOrderingQuery =
              "top=" + URLEncoder.encode(bottom, Constants.DEFAULT_ENCODING) + "&amp;";
        }
      }
    }

    // ----------------------------------------------
    // If none of the above apply, no positioning parameters
    // set - use start of index
    // ----------------------------------------------
    // Are we in a community or collection?
    Community community = UIUtil.getCommunityLocation(request);
    Collection collection = UIUtil.getCollectionLocation(request);

    if (collection != null) {
      logInfo = logInfo + ",collection_id=" + collection.getID() + ",";
      scope.setScope(collection);
    } else if (community != null) {
      logInfo = logInfo + ",community_id=" + community.getID() + ",";
      scope.setScope(community);
    }

    BrowseInfo browseInfo;

    try {
      // Query the browse index
      if (browseAuthors) {
        browseInfo = Browse.getAuthors(scope);
      } else if (browseDates) {
        browseInfo = Browse.getItemsByDate(scope, oldestFirst);
      } else if (browseSubjects) {
        browseInfo = Browse.getSubjects(scope);
      } else {
        browseInfo = Browse.getItemsByTitle(scope);
      }
    } catch (SQLException sqle) {
      // An invalid scope was given
      JSPManager.showIntegrityError(request, response);
      return;
    }

    // Write log entry
    String what = "title";

    if (browseAuthors) {
      what = "author";
    } else if (browseSubjects) {
      what = "subject";
    } else if (browseDates) {
      what = "date";
    }

    log.info(
        LogManager.getHeader(
            context, "browse_" + what, logInfo + "results=" + browseInfo.getResultCount()));

    if (browseInfo.getResultCount() == 0) {
      // No results!
      request.setAttribute("community", community);
      request.setAttribute("collection", collection);

      JSPManager.showJSP(request, response, "/browse/no-results.jsp");
    } else {
      // Work out what the query strings will be for the previous
      // and next pages
      if (!browseInfo.isFirst()) {
        // Not the first page, so we'll need a "previous page" button
        // The top entry of the current page becomes the bottom
        // entry of the "previous page"
        String s;

        if (browseAuthors || browseSubjects) // aneesh
        {
          s = (browseInfo.getStringResults())[0];
        } else {
          Item firstItem = (browseInfo.getItemResults())[0];
          s = firstItem.getHandle();
        }

        if (browseDates && oldestFirst) {
          // For browsing by date, oldest first, we need
          // to add the ordering parameter
          request.setAttribute(
              "previous.query",
              "order=oldestfirst&amp;bottom=" + URLEncoder.encode(s, Constants.DEFAULT_ENCODING));
        } else {
          request.setAttribute(
              "previous.query", "bottom=" + URLEncoder.encode(s, Constants.DEFAULT_ENCODING));
        }
      }

      if (!browseInfo.isLast()) {
        // Not the last page, so we'll need a "next page" button
        // The bottom entry of the current page will be the top
        // entry in the next page
        String s;

        if (browseAuthors) {
          String[] authors = browseInfo.getStringResults();
          s = authors[authors.length - 1];
        } else if (browseSubjects) {
          String[] subjects = browseInfo.getStringResults();
          s = subjects[subjects.length - 1];
        } else {
          Item[] items = browseInfo.getItemResults();
          Item lastItem = items[items.length - 1];
          s = lastItem.getHandle();
        }

        if (browseDates && oldestFirst) {
          // For browsing by date, oldest first, we need
          // to add the ordering parameter
          request.setAttribute(
              "next.query",
              "order=oldestfirst&amp;top=" + URLEncoder.encode(s, Constants.DEFAULT_ENCODING));
        } else {
          request.setAttribute(
              "next.query", "top=" + URLEncoder.encode(s, Constants.DEFAULT_ENCODING));
        }
      }

      // Set appropriate attributes and forward to results page
      request.setAttribute("community", community);
      request.setAttribute("collection", collection);
      request.setAttribute("browse.info", browseInfo);
      request.setAttribute("highlight", new Boolean(highlight));

      if (browseAuthors) {
        JSPManager.showJSP(request, response, "/browse/authors.jsp");
      } else if (browseSubjects) {
        JSPManager.showJSP(request, response, "/browse/subjects.jsp");
      } else if (browseDates) {
        request.setAttribute("oldest.first", new Boolean(oldestFirst));
        request.setAttribute("flip.ordering.query", flipOrderingQuery);
        JSPManager.showJSP(request, response, "/browse/items-by-date.jsp");
      } else {
        JSPManager.showJSP(request, response, "/browse/items-by-title.jsp");
      }
    }
  }
Пример #23
0
  protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    ExternalIdentifierDAO identifierDAO = ExternalIdentifierDAOFactory.getInstance(context);

    // Obtain information from request
    String uri = request.getParameter("uri");
    ExternalIdentifier identifier = identifierDAO.retrieve(uri);
    ObjectIdentifier oi = identifier.getObjectIdentifier();

    // Lookup Item title & collection
    Item item = null;
    String link = "";
    String title = null;
    String collName = null;
    if (identifier != null) {
      item = (Item) oi.getObject(context);
      link = item.getIdentifier().getURL().toString();
      request.setAttribute("link", link);

      if (item != null) {
        DCValue[] titleDC = item.getDC("title", null, Item.ANY);
        if (titleDC != null || titleDC.length > 0) {
          title = titleDC[0].value;
        }
        Collection[] colls = item.getCollections();
        collName = colls[0].getMetadata("name");
      }
    } else {
      String path = request.getPathInfo();
      log.info(LogManager.getHeader(context, "invalid_id", "path=" + path));
      JSPManager.showInvalidIDError(request, response, path, -1);
      return;
    }
    if (title == null) {
      title = "";
    }
    if (collName == null) {
      collName = "";
    }
    request.setAttribute("suggest.title", title);

    // User email from context
    EPerson currentUser = context.getCurrentUser();
    String authEmail = null;
    String userName = null;

    if (currentUser != null) {
      authEmail = currentUser.getEmail();
      userName = currentUser.getFullName();
    }

    if (request.getParameter("submit") != null) {
      String recipAddr = request.getParameter("recip_email");
      // the only required field is recipient email address
      if (recipAddr == null || recipAddr.equals("")) {
        log.info(LogManager.getHeader(context, "show_suggest_form", "problem=true"));
        request.setAttribute("suggest.problem", new Boolean(true));
        JSPManager.showJSP(request, response, "/suggest/suggest.jsp");
        return;
      }
      String recipName = request.getParameter("recip_name");
      if (recipName == null || "".equals(recipName)) {
        try {
          recipName =
              I18nUtil.getMessage("org.dspace.app.webui.servlet.SuggestServlet.recipient", context);
        } catch (MissingResourceException e) {
          log.warn(
              LogManager.getHeader(
                  context,
                  "show_suggest_form",
                  "Missing Resource: org.dspace.app.webui.servlet.SuggestServlet.sender"));
          recipName = "colleague";
        }
      }
      String senderName = request.getParameter("sender_name");
      if (senderName == null || "".equals(senderName)) {
        // use userName if available
        if (userName != null) {
          senderName = userName;
        } else {
          try {
            senderName =
                I18nUtil.getMessage("org.dspace.app.webui.servlet.SuggestServlet.sender", context);
          } catch (MissingResourceException e) {
            log.warn(
                LogManager.getHeader(
                    context,
                    "show_suggest_form",
                    "Missing Resource: org.dspace.app.webui.servlet.SuggestServlet.sender"));
            senderName = "A DSpace User";
          }
        }
      }
      String senderAddr = request.getParameter("sender_email");
      if (senderAddr == null || "".equals(senderAddr)) {
        // use authEmail if available
        if (authEmail != null) {
          senderAddr = authEmail;
        }
      }
      String itemUri = identifier.getURI().toString();
      String message = request.getParameter("message");
      String siteName = ConfigurationManager.getProperty("dspace.name");

      // All data is there, send the email
      try {
        Email email =
            ConfigurationManager.getEmail(
                I18nUtil.getEmailFilename(context.getCurrentLocale(), "suggest"));
        email.addRecipient(recipAddr); // recipient address
        email.addArgument(recipName); // 1st arg - recipient name
        email.addArgument(senderName); // 2nd arg - sender name
        email.addArgument(siteName); // 3rd arg - repository name
        email.addArgument(title); // 4th arg - item title
        email.addArgument(itemUri); // 5th arg - item identifier URI
        email.addArgument(link); // 6th arg - item local URL
        email.addArgument(collName); // 7th arg - collection name
        email.addArgument(message); // 8th arg - user comments

        // Set sender's address as 'reply-to' address if supplied
        if (senderAddr != null && !"".equals(senderAddr)) {
          email.setReplyTo(senderAddr);
        }

        // Only actually send the email if feature is enabled
        if (ConfigurationManager.getBooleanProperty("webui.suggest.enable", false)) {
          email.send();
        } else {
          throw new MessagingException(
              "Suggest item email not sent - webui.suggest.enable = false");
        }

        log.info(LogManager.getHeader(context, "sent_suggest", "from=" + senderAddr));

        JSPManager.showJSP(request, response, "/suggest/suggest_ok.jsp");
      } catch (MessagingException me) {
        log.warn(LogManager.getHeader(context, "error_mailing_suggest", ""), me);
        JSPManager.showInternalError(request, response);
      }
    } else {
      // Display suggest form
      log.info(LogManager.getHeader(context, "show_suggest_form", "problem=false"));
      request.setAttribute("authenticated.email", authEmail);
      request.setAttribute("eperson.name", userName);
      JSPManager.showJSP(request, response, "/suggest/suggest.jsp"); // asd
    }
  }
  protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    // Get the query
    String query = request.getParameter("query");
    int start = UIUtil.getIntParameter(request, "start");
    String advanced = request.getParameter("advanced");
    String fromAdvanced = request.getParameter("from_advanced");
    int sortBy = UIUtil.getIntParameter(request, "sort_by");
    String order = request.getParameter("order");
    int rpp = UIUtil.getIntParameter(request, "rpp");
    String advancedQuery = "";
    HashMap queryHash = new HashMap();

    // can't start earlier than 0 in the results!
    if (start < 0) {
      start = 0;
    }

    int collCount = 0;
    int commCount = 0;
    int itemCount = 0;

    Item[] resultsItems;
    Collection[] resultsCollections;
    Community[] resultsCommunities;

    QueryResults qResults = null;
    QueryArgs qArgs = new QueryArgs();
    SortOption sortOption = null;

    if (request.getParameter("etal") != null)
      qArgs.setEtAl(UIUtil.getIntParameter(request, "etal"));

    try {
      if (sortBy > 0) {
        sortOption = SortOption.getSortOption(sortBy);
        qArgs.setSortOption(sortOption);
      }

      if (SortOption.ASCENDING.equalsIgnoreCase(order)) {
        qArgs.setSortOrder(SortOption.ASCENDING);
      } else {
        qArgs.setSortOrder(SortOption.DESCENDING);
      }
    } catch (Exception e) {
    }

    if (rpp > 0) {
      qArgs.setPageSize(rpp);
    }

    // if the "advanced" flag is set, build the query string from the
    // multiple query fields
    if (advanced != null) {
      query = qArgs.buildQuery(request);
      advancedQuery = qArgs.buildHTTPQuery(request);
    }

    // Ensure the query is non-null
    if (query == null) {
      query = "";
    }

    // Get the location parameter, if any
    String location = request.getParameter("location");
    String newURL;

    // If there is a location parameter, we should redirect to
    // do the search with the correct location.
    if ((location != null) && !location.equals("")) {
      String url = "";

      if (!location.equals("/")) {
        // Location points to a resource
        url = "/resource/" + location;
      }

      // Encode the query
      query = URLEncoder.encode(query, Constants.DEFAULT_ENCODING);

      if (advancedQuery.length() > 0) {
        query = query + "&from_advanced=true&" + advancedQuery;
      }

      // Do the redirect
      response.sendRedirect(
          response.encodeRedirectURL(
              request.getContextPath() + url + "/simple-search?query=" + query));

      return;
    }

    // Build log information
    String logInfo = "";

    // Get our location
    Community community = UIUtil.getCommunityLocation(request);
    Collection collection = UIUtil.getCollectionLocation(request);

    // get the start of the query results page
    //        List resultObjects = null;
    qArgs.setQuery(query);
    qArgs.setStart(start);

    // Perform the search
    if (collection != null) {
      logInfo = "collection_id=" + collection.getID() + ",";

      // Values for drop-down box
      request.setAttribute("community", community);
      request.setAttribute("collection", collection);

      qResults = DSQuery.doQuery(context, qArgs, collection);
    } else if (community != null) {
      logInfo = "community_id=" + community.getID() + ",";

      request.setAttribute("community", community);

      // Get the collections within the community for the dropdown box
      request.setAttribute("collection.array", community.getCollections());

      qResults = DSQuery.doQuery(context, qArgs, community);
    } else {
      // Get all communities for dropdown box
      //            Community[] communities = Community.findAll(context);
      Community[] communities =
          (Community[]) ApplicationService.findAllCommunities(context).toArray();
      request.setAttribute("community.array", communities);

      qResults = DSQuery.doQuery(context, qArgs);
    }

    // now instantiate the results and put them in their buckets
    for (int i = 0; i < qResults.getHitTypes().size(); i++) {
      String myURI = (String) qResults.getHitURIs().get(i);
      Integer myType = (Integer) qResults.getHitTypes().get(i);

      // add the URI to the appropriate lists
      switch (myType.intValue()) {
        case Constants.ITEM:
          itemCount++;
          break;

        case Constants.COLLECTION:
          collCount++;
          break;

        case Constants.COMMUNITY:
          commCount++;
          break;
      }
    }

    // Make objects from the URIs - make arrays, fill them out
    resultsCommunities = new Community[commCount];
    resultsCollections = new Collection[collCount];
    resultsItems = new Item[itemCount];

    for (int i = 0; i < qResults.getHitTypes().size(); i++) {
      Integer myId = (Integer) qResults.getHitIds().get(i);
      String myURI = (String) qResults.getHitURIs().get(i);
      Integer myType = (Integer) qResults.getHitTypes().get(i);

      switch (myType.intValue()) {
        case Constants.ITEM:
          if (myId != null) {
            //                    resultsItems[itemCount] = Item.find(context, myId);
            resultsItems[itemCount] = ApplicationService.get(context, Item.class, myId);
          } else {
            ObjectIdentifier oi = ObjectIdentifier.parseCanonicalForm(myURI);
            resultsItems[itemCount] = (Item) oi.getObject(context);
          }

          if (resultsItems[itemCount] == null) {
            throw new SQLException("Query \"" + query + "\" returned unresolvable item");
          }
          itemCount++;
          break;

        case Constants.COLLECTION:
          if (myId != null) {
            //                    resultsCollections[collCount] = Collection.find(context, myId);
            resultsCollections[collCount] = ApplicationService.get(context, Collection.class, myId);
          } else {
            ObjectIdentifier oi = ObjectIdentifier.parseCanonicalForm(myURI);
            resultsCollections[collCount] = (Collection) oi.getObject(context);
          }

          if (resultsCollections[collCount] == null) {
            throw new SQLException("Query \"" + query + "\" returned unresolvable collection");
          }

          collCount++;
          break;

        case Constants.COMMUNITY:
          if (myId != null) {
            //                    resultsCommunities[commCount] = Community.find(context, myId);
            resultsCommunities[commCount] = ApplicationService.get(context, Community.class, myId);
          } else {
            ObjectIdentifier oi = ObjectIdentifier.parseCanonicalForm(myURI);
            resultsCommunities[commCount] = (Community) oi.getObject(context);
          }

          if (resultsCommunities[commCount] == null) {
            throw new SQLException("Query \"" + query + "\" returned unresolvable community");
          }

          commCount++;
          break;
      }
    }

    // Log
    log.info(
        LogManager.getHeader(
            context,
            "search",
            logInfo
                + "query=\""
                + query
                + "\",results=("
                + resultsCommunities.length
                + ","
                + resultsCollections.length
                + ","
                + resultsItems.length
                + ")"));

    // Pass in some page qualities
    // total number of pages
    int pageTotal = 1 + ((qResults.getHitCount() - 1) / qResults.getPageSize());

    // current page being displayed
    int pageCurrent = 1 + (qResults.getStart() / qResults.getPageSize());

    // pageLast = min(pageCurrent+9,pageTotal)
    int pageLast = ((pageCurrent + 9) > pageTotal) ? pageTotal : (pageCurrent + 9);

    // pageFirst = max(1,pageCurrent-9)
    int pageFirst = ((pageCurrent - 9) > 1) ? (pageCurrent - 9) : 1;

    // Pass the results to the display JSP
    request.setAttribute("items", resultsItems);
    request.setAttribute("communities", resultsCommunities);
    request.setAttribute("collections", resultsCollections);

    request.setAttribute("pagetotal", new Integer(pageTotal));
    request.setAttribute("pagecurrent", new Integer(pageCurrent));
    request.setAttribute("pagelast", new Integer(pageLast));
    request.setAttribute("pagefirst", new Integer(pageFirst));

    request.setAttribute("queryresults", qResults);

    // And the original query string
    request.setAttribute("query", query);

    request.setAttribute("order", qArgs.getSortOrder());
    request.setAttribute("sortedBy", sortOption);

    if ((fromAdvanced != null) && (qResults.getHitCount() == 0)) {
      // send back to advanced form if no results
      Community[] communities =
          (Community[]) ApplicationService.findAllCommunities(context).toArray();
      //            Community[] communities = Community.findAll(context);
      request.setAttribute("communities", communities);
      request.setAttribute("no_results", "yes");

      queryHash = qArgs.buildQueryHash(request);

      Iterator i = queryHash.keySet().iterator();

      while (i.hasNext()) {
        String key = (String) i.next();
        String value = (String) queryHash.get(key);

        request.setAttribute(key, value);
      }

      JSPManager.showJSP(request, response, "/search/advanced.jsp");
    } else {
      JSPManager.showJSP(request, response, "/search/results.jsp");
    }
  }
 /**
  * Displays the options you have in the supervisor admin area
  *
  * @param context the context of the request
  * @param request the servlet request
  * @param response the servlet response
  */
 private void showMainPage(
     Context context, HttpServletRequest request, HttpServletResponse response)
     throws ServletException, IOException, SQLException, AuthorizeException {
   JSPManager.showJSP(request, response, "/dspace-admin/supervise-main.jsp");
 }
  public void processDSpaceObject(
      Context context,
      HttpServletRequest request,
      HttpServletResponse response,
      DSpaceObject dso,
      String extraPathInfo)
      throws ServletException, IOException, SQLException, AuthorizeException {
    // OK, we have a valid URI. What is it?
    if (dso.getType() == Constants.BITSTREAM) {
      // FIXME: Check for if-modified-since header
      Bitstream bitstream = (Bitstream) dso;

      log.info(
          LogManager.getHeader(context, "view_bitstream", "bitstream_id=" + bitstream.getID()));

      // Pipe the bits
      //            InputStream is = bitstream.retrieve();
      InputStream is = BitstreamStorageManager.retrieve(context, bitstream);

      // Set the response MIME type
      response.setContentType(bitstream.getFormat().getMIMEType());

      response.setHeader("Content-Length", String.valueOf(bitstream.getSize()));
      response.setHeader("Content-disposition", "attachment; filename=" + bitstream.getName());

      Utils.bufferedCopy(is, response.getOutputStream());
      is.close();
      response.getOutputStream().flush();
    } else if (dso.getType() == Constants.ITEM) {
      Item item = (Item) dso;

      response.setDateHeader("Last-Modified", item.getLastModified().getTime());

      // Check for if-modified-since header
      long modSince = request.getDateHeader("If-Modified-Since");

      if (modSince != -1 && item.getLastModified().getTime() < modSince) {
        // Item has not been modified since requested date,
        // hence bitstream has not; return 304
        response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
      } else {
        // Display the item page
        displayItem(context, request, response, item);
      }
    } else if (dso.getType() == Constants.COLLECTION) {
      Collection c = (Collection) dso;

      // Store collection location in request
      request.setAttribute("dspace.collection", c);

      /*
       * Find the "parent" community the collection, mainly for
       * "breadcrumbs" FIXME: At the moment, just grab the first community
       * the collection is in. This should probably be more context
       * sensitive when we have multiple inclusion.
       */
      Community[] parents = (Community[]) c.getCommunities().toArray();
      request.setAttribute("dspace.community", parents[0]);

      /*
       * Find all the "parent" communities for the collection for
       * "breadcrumbs"
       */
      request.setAttribute("dspace.communities", getParents(parents[0], true));

      // home page, or forward to another page?
      if ((extraPathInfo == null) || (extraPathInfo.equals("/"))) {
        collectionHome(context, request, response, parents[0], c);
      } else {
        // Forward to another servlet
        request.getRequestDispatcher(extraPathInfo).forward(request, response);
      }
    } else if (dso.getType() == Constants.COMMUNITY) {
      Community c = (Community) dso;

      // Store collection location in request
      request.setAttribute("dspace.community", c);

      /*
       * Find all the "parent" communities for the community
       */
      request.setAttribute("dspace.communities", getParents(c, false));

      // home page, or forward to another page?
      if ((extraPathInfo == null) || (extraPathInfo.equals("/"))) {
        communityHome(context, request, response, c);
      } else {
        // Forward to another servlet
        request.getRequestDispatcher(extraPathInfo).forward(request, response);
      }
    } else {
      // Shouldn't happen. Log and treat as invalid ID
      log.info(
          LogManager.getHeader(
              context,
              "URI not an item, collection or community",
              "identifier=" + dso.getIdentifier().toString()));
      JSPManager.showInvalidIDError(request, response, request.getPathInfo(), -1);

      return;
    }
  }
Пример #27
0
 protected void doDSGet(Context c, HttpServletRequest request, HttpServletResponse response)
     throws ServletException, IOException, SQLException, AuthorizeException {
   // always go first to news-main.jsp
   JSPManager.showJSP(request, response, "/dspace-admin/news-main.jsp");
 }
Пример #28
0
  @Override
  protected void doDSPost(Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    String button = UIUtil.getSubmitButton(request, "submit");

    if (button.equals("submit_update")) {
      // Update the metadata for a bitstream format
      BitstreamFormat bf =
          bitstreamFormatService.find(context, UIUtil.getIntParameter(request, "format_id"));

      bf.setMIMEType(request.getParameter("mimetype"));
      bf.setShortDescription(context, request.getParameter("short_description"));
      bf.setDescription(request.getParameter("description"));
      bf.setSupportLevel(UIUtil.getIntParameter(request, "support_level"));
      bf.setInternal(
          (request.getParameter("internal") != null)
              && request.getParameter("internal").equals("true"));

      // Separate comma-separated extensions
      List<String> extensions = new LinkedList<>();
      String extParam = request.getParameter("extensions");

      while (extParam.length() > 0) {
        int c = extParam.indexOf(',');

        if (c > 0) {
          extensions.add(extParam.substring(0, c).trim());
          extParam = extParam.substring(c + 1).trim();
        } else {
          if (extParam.trim().length() > 0) {
            extensions.add(extParam.trim());
            extParam = "";
          }
        }
      }

      bf.setExtensions(extensions);

      bitstreamFormatService.update(context, bf);

      showFormats(context, request, response);
      context.complete();
    } else if (button.equals("submit_add")) {
      // Add a new bitstream - simply add to the list, and let the user
      // edit with the main form
      BitstreamFormat bf = bitstreamFormatService.create(context);

      // We set the "internal" flag to true, so that the empty bitstream
      // format doesn't show up in the submission UI yet
      bf.setInternal(true);
      bitstreamFormatService.update(context, bf);

      showFormats(context, request, response);
      context.complete();
    } else if (button.equals("submit_delete")) {
      // Start delete process - go through verification step
      BitstreamFormat bf =
          bitstreamFormatService.find(context, UIUtil.getIntParameter(request, "format_id"));
      request.setAttribute("format", bf);
      JSPManager.showJSP(request, response, "/dspace-admin/confirm-delete-format.jsp");
    } else if (button.equals("submit_confirm_delete")) {
      // User confirms deletion of format
      BitstreamFormat bf =
          bitstreamFormatService.find(context, UIUtil.getIntParameter(request, "format_id"));
      bitstreamFormatService.delete(context, bf);

      showFormats(context, request, response);
      context.complete();
    } else {
      // Cancel etc. pressed - show list again
      showFormats(context, request, response);
    }
  }
  @Override
  protected void doDSGet(Context context, HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException, SQLException, AuthorizeException {
    Item item = null;
    Bitstream bitstream = null;

    // Get the ID from the URL
    String idString = request.getPathInfo();
    String handle = "";
    String sequenceText = "";
    String filename = null;
    int sequenceID;

    // Parse 'handle' and 'sequence' (bitstream seq. number) out
    // of remaining URL path, which is typically of the format:
    // {handle}/{sequence}/{bitstream-name}
    // But since the bitstream name MAY have any number of "/"s in
    // it, and the handle is guaranteed to have one slash, we
    // scan from the start to pick out handle and sequence:

    // Remove leading slash if any:
    if (idString.startsWith("/")) {
      idString = idString.substring(1);
    }

    // skip first slash within handle
    int slashIndex = idString.indexOf('/');
    if (slashIndex != -1) {
      slashIndex = idString.indexOf('/', slashIndex + 1);
      if (slashIndex != -1) {
        handle = idString.substring(0, slashIndex);
        int slash2 = idString.indexOf('/', slashIndex + 1);
        if (slash2 != -1) {
          sequenceText = idString.substring(slashIndex + 1, slash2);
          filename = idString.substring(slash2 + 1);
        }
      }
    }

    try {
      sequenceID = Integer.parseInt(sequenceText);
    } catch (NumberFormatException nfe) {
      sequenceID = -1;
    }

    // Now try and retrieve the item
    DSpaceObject dso = HandleManager.resolveToObject(context, handle);

    // Make sure we have valid item and sequence number
    if (dso != null && dso.getType() == Constants.ITEM && sequenceID >= 0) {
      item = (Item) dso;

      if (item.isWithdrawn()) {
        log.info(
            LogManager.getHeader(
                context, "view_bitstream", "handle=" + handle + ",withdrawn=true"));
        JSPManager.showJSP(request, response, "/tombstone.jsp");
        return;
      }

      boolean found = false;

      Bundle[] bundles = item.getBundles();

      for (int i = 0; (i < bundles.length) && !found; i++) {
        Bitstream[] bitstreams = bundles[i].getBitstreams();

        for (int k = 0; (k < bitstreams.length) && !found; k++) {
          if (sequenceID == bitstreams[k].getSequenceID()) {
            bitstream = bitstreams[k];
            found = true;
          }
        }
      }
    }

    if (bitstream == null || filename == null || !filename.equals(bitstream.getName())) {
      // No bitstream found or filename was wrong -- ID invalid
      log.info(LogManager.getHeader(context, "invalid_id", "path=" + idString));
      JSPManager.showInvalidIDError(request, response, idString, Constants.BITSTREAM);

      return;
    }

    log.info(LogManager.getHeader(context, "view_bitstream", "bitstream_id=" + bitstream.getID()));

    // Modification date
    // Only use last-modified if this is an anonymous access
    // - caching content that may be generated under authorisation
    //   is a security problem
    if (context.getCurrentUser() == null) {
      // TODO: Currently the date of the item, since we don't have dates
      // for files
      response.setDateHeader("Last-Modified", item.getLastModified().getTime());

      // Check for if-modified-since header
      long modSince = request.getDateHeader("If-Modified-Since");

      if (modSince != -1 && item.getLastModified().getTime() < modSince) {
        // Item has not been modified since requested date,
        // hence bitstream has not; return 304
        response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return;
      }
    }

    // Pipe the bits
    InputStream is = bitstream.retrieve();

    // Set the response MIME type
    response.setContentType(bitstream.getFormat().getMIMEType());

    // Response length
    response.setHeader("Content-Length", String.valueOf(bitstream.getSize()));

    if (threshold != -1 && bitstream.getSize() >= threshold) {
      setBitstreamDisposition(bitstream.getName(), request, response);
    }

    Utils.bufferedCopy(is, response.getOutputStream());
    is.close();
    response.getOutputStream().flush();
  }