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/**
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* '$RCSfile$'
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* Purpose: A Class that implements utility methods for a metadata catalog
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* Copyright: 2008 Regents of the University of California and the
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* National Center for Ecological Analysis and Synthesis
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* Authors: Michael Daigle
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*
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* '$Author: cjones $'
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* '$Date: 2011-06-07 09:53:46 -0700 (Tue, 07 Jun 2011) $'
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* '$Revision: 6124 $'
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package edu.ucsb.nceas.metacat.admin;
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import java.io.IOException;
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import java.util.Vector;
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import javax.servlet.ServletConfig;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.servlet.http.HttpSession;
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import org.apache.log4j.Logger;
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import edu.ucsb.nceas.metacat.MetaCatServlet;
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import edu.ucsb.nceas.metacat.properties.PropertyService;
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import edu.ucsb.nceas.metacat.service.SessionService;
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import edu.ucsb.nceas.metacat.shared.MetacatUtilException;
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import edu.ucsb.nceas.metacat.util.AuthUtil;
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import edu.ucsb.nceas.metacat.util.ConfigurationUtil;
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import edu.ucsb.nceas.metacat.util.RequestUtil;
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import edu.ucsb.nceas.metacat.util.SkinUtil;
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import edu.ucsb.nceas.metacat.util.SystemUtil;
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import edu.ucsb.nceas.utilities.GeneralPropertyException;
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/**
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* Entry servlet for the metadata configuration utility
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*/
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public class MetacatAdminServlet extends HttpServlet {
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private static final long serialVersionUID = 1L;
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private Logger logMetacat = Logger.getLogger(MetacatAdminServlet.class);
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/**
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* Initialize the servlet
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*/
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public void init(ServletConfig config) throws ServletException {
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super.init(config);
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}
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/** Handle "GET" method requests from HTTP clients */
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public void doGet(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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// Process the data and send back the response
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handleGetOrPost(request, response);
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}
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/** Handle "POST" method requests from HTTP clients */
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public void doPost(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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// Process the data and send back the response
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handleGetOrPost(request, response);
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}
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/**
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* Control servlet response depending on the action parameter specified
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*
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* @param request
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* the http request information
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* @param response
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* the http response to be sent back to the client
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*/
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private void handleGetOrPost(HttpServletRequest request,
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HttpServletResponse response) throws ServletException, IOException {
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String action = request.getParameter("configureType");
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logMetacat.debug("MetacatAdminServlet.handleGetOrPost - Processing admin action: " + action);
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Vector<String> processingMessage = new Vector<String>();
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Vector<String> processingErrors = new Vector<String>();
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try {
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// Update the last update time for this user if they are not new
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HttpSession httpSession = request.getSession(false);
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if (httpSession != null) {
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SessionService.getInstance().touchSession(httpSession.getId());
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}
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if (!ConfigurationUtil.isBackupDirConfigured()) {
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// if the backup dir has not been configured, then show the
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// backup directory configuration screen.
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processingMessage.add("You must configure the backup directory"
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+ " before you can continue with Metacat configuration.");
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RequestUtil.setRequestMessage(request, processingMessage);
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action = "backup";
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logMetacat.debug("MetacatAdminServlet.handleGetOrPost - Admin action changed to 'backup'");
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} else if (!AuthUtil.isAuthConfigured()) {
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// if authentication isn't configured, change the action to auth.
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// Authentication needs to be set up before we do anything else
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processingMessage.add("You must configure authentication before "
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+ "you can continue with MetaCat configuration.");
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RequestUtil.setRequestMessage(request, processingMessage);
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action = "auth";
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logMetacat.debug("MetacatAdminServlet.handleGetOrPost - Admin action changed to 'auth'");
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} else if (!AuthUtil.isUserLoggedInAsAdmin(request)) {
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// If auth is configured, see if the user is logged in
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// as an administrator. If not, they need to log in before
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// they can continue with configuration.
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processingMessage.add("You must log in as an administrative " + "" +
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"user before you can continue with MetaCat configuration.");
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RequestUtil.setRequestMessage(request, processingMessage);
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action = "login";
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logMetacat.debug("MetacatAdminServlet.handleGetOrPost - Admin action changed to 'login'");
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}
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if (action == null || action.equals("configure")) {
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// Forward the request main configuration page
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request.setAttribute("metaCatVersion", SystemUtil.getMetacatVersion());
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request.setAttribute("propsConfigured", new Boolean(PropertyService.arePropertiesConfigured()));
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request.setAttribute("authConfigured", new Boolean(AuthUtil.isAuthConfigured()));
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// TODO MCD figure out if we still need an org section
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//request.setAttribute("orgsConfigured", new Boolean(OrganizationUtil.areOrganizationsConfigured()));
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request.setAttribute("skinsConfigured", new Boolean(SkinUtil.areSkinsConfigured()));
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request.setAttribute("metacatConfigured", new Boolean(ConfigurationUtil.isMetacatConfigured()));
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request.setAttribute("geoserverConfigured",
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PropertyService.getProperty("configutil.geoserverConfigured"));
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request.setAttribute("metcatServletInitialized", MetaCatServlet.isFullyInitialized());
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if (PropertyService.arePropertiesConfigured()) {
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request.setAttribute("databaseVersion",
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DBAdmin.getInstance().getDBVersion());
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request.setAttribute("contextURL", SystemUtil.getContextURL());
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}
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RequestUtil.forwardRequest(request, response,
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"/admin/metacat-configuration.jsp?configureType=configure", null);
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return;
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} else if (action.equals("properties")) {
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// process properties
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PropertiesAdmin.getInstance().configureProperties(request,
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response);
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return;
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} else if (action.equals("skins")) {
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// process skins
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SkinsAdmin.getInstance().configureSkins(request, response);
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return;
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} else if (action.equals("database")) {
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// process database
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DBAdmin.getInstance().configureDatabase(request, response);
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return;
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} else if (action.equals("auth")) {
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// process authentication
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AuthAdmin.getInstance().configureAuth(request, response);
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return;
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} else if (action.equals("login")) {
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// process login
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LoginAdmin.getInstance().authenticateUser(request, response);
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return;
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} else if (action.equals("backup")) {
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// process login
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BackupAdmin.getInstance().configureBackup(request, response);
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return;
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} else if (action.equals("geoserver")) {
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// process geoserver password change
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GeoserverAdmin.getInstance().configureGeoserver(request, response);
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return;
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} else {
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String errorMessage = "MetacatAdminServlet.handleGetOrPost - Invalid action in configuration request: " + action;
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logMetacat.error(errorMessage);
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processingErrors.add(errorMessage);
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}
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if (processingErrors.size() > 0) {
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RequestUtil.clearRequestMessages(request);
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RequestUtil.setRequestErrors(request,processingErrors);
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// if the action that threw an exception was "configure" just go straight to the metacat
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// configuration. This will avoid a loop. Otherwise, call the admin servlet with
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// configuration action.
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if (action != null && action.equals("configure")) {
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RequestUtil.forwardRequest(request, response, "/admin/metacat-configuration.jsp", null);
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} else {
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RequestUtil.forwardRequest(request, response, "/admin?configureType=configure", null);
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}
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}
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} catch (GeneralPropertyException ge) {
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String errorMessage =
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"MetacatAdminServlet.handleGetOrPost - Property problem while handling request: " + ge.getMessage();
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logMetacat.error(errorMessage);
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processingErrors.add(errorMessage);
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} catch (AdminException ae) {
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String errorMessage =
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"MetacatAdminServlet.handleGetOrPost - Admin problem while handling request: " + ae.getMessage();
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logMetacat.error(errorMessage);
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processingErrors.add(errorMessage);
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} catch (MetacatUtilException ue) {
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String errorMessage =
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"MetacatAdminServlet.handleGetOrPost - Utility problem while handling request: " + ue.getMessage();
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logMetacat.error(errorMessage);
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processingErrors.add(errorMessage);
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}
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}
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}
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