+/*
+ * Copyright (C) 2001-2006 The Mir-coders group
+ *
+ * This file is part of Mir.
+ *
+ * Mir is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Mir is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Mir; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * In addition, as a special exception, The Mir-coders gives permission to link
+ * the code of this program with any library licensed under the Apache Software License,
+ * and distribute linked combinations including the two. You must obey the
+ * GNU General Public License in all respects for all of the code used other than
+ * the above mentioned libraries. If you modify this file, you may extend this
+ * exception to your version of the file, but you are not obligated to do so.
+ * If you do not wish to do so, delete this exception statement from your version.
+ */
+
+import mir.bundle.Bundle;
+import mir.config.MirPropertiesConfiguration;
+import mir.servlet.AbstractServlet;
+import mir.servlet.AdminServletModule;
+import mir.servlet.ServletModuleExc;
+import mir.servlet.ServletModuleUserExc;
+import mir.util.ExceptionRoutines;
+import mir.util.StringRoutines;
+import mircoders.entity.EntityUsers;
+import mircoders.global.MirGlobal;
+import mircoders.module.ModuleUsers;
+import mircoders.servlet.ServletHelper;
+import multex.Failure;
+
+import javax.servlet.ServletConfig;
+import javax.servlet.ServletException;
+import javax.servlet.UnavailableException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+import javax.servlet.http.HttpSessionBindingEvent;
+import javax.servlet.http.HttpSessionBindingListener;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.GregorianCalendar;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+
+public class Mir extends AbstractServlet {
+ private static ModuleUsers usersModule = null;
+ private static Locale fallbackLocale = null;
+
+ private static List loginLanguages = null;
+
+ private List getLoginLanguages() throws Failure {
+ synchronized (Mir.class) {
+ try {
+ if (loginLanguages == null) {
+ List languages =
+ StringRoutines.splitString(MirGlobal.config().getString("Mir.Login.Languages", "en"), ";");
+
+ loginLanguages = new ArrayList();
+
+ Iterator i = languages.iterator();
+
+ while (i.hasNext()) {
+ String code = (String) i.next();
+
+ Bundle bundle =
+ MirGlobal.getBundleFactory().getBundle("etc/bundles/adminlocal", new String[] { code });
+ Bundle defaultBundle =
+ MirGlobal.getBundleFactory().getBundle("bundles/admin", new String[] { code });
+
+ String name = bundle.getValue("languagename", Collections.EMPTY_LIST);
+
+ if (name == null) {
+ name = defaultBundle.getValue("languagename", Collections.EMPTY_LIST);
+ }
+
+ if (name == null) {
+ name = code;
+ }
+
+ Map record = new HashMap();
+ record.put("name", name);
+ record.put("code", code);
+ loginLanguages.add(record);
+ }
+ }
+
+ return loginLanguages;
+ }
+ catch (Throwable t) {
+ throw new Failure("Error while retrieving the available login languages", t);
+ }
+ }
+ }
+
+ public void init(ServletConfig config) throws ServletException {
+ super.init(config);
+
+ usersModule = new ModuleUsers();
+ }
+
+ protected String getDefaultLanguage(HttpServletRequest aRequest) {
+ String defaultlanguage =
+ MirGlobal.config().getString("Mir.Login.DefaultLanguage", "");
+
+ if (defaultlanguage.length() == 0) {
+ Locale locale = aRequest.getLocale();
+ defaultlanguage = locale.getLanguage();
+ }
+
+ return defaultlanguage;
+ }
+
+ protected synchronized Locale getFallbackLocale() throws ServletException {
+ try {
+ if (fallbackLocale == null) {
+ fallbackLocale = new Locale(MirPropertiesConfiguration.instance().getString("Mir.Admin.FallbackLanguage", "en"), "");
+ }
+ }
+ catch (Throwable t) {
+ throw new ServletException(t.getMessage());
+ }
+
+ return fallbackLocale;
+ }
+
+ public EntityUsers checkCredentials(HttpServletRequest aRequest) throws ServletException {
+ try {
+ EntityUsers user = ServletHelper.getUser(aRequest);
+
+ String username = aRequest.getParameter("login");
+ String password = aRequest.getParameter("password");
+
+ if (username != null && password != null) {
+ user = usersModule.getUserForLogin(username, password);
+
+ if (user!=null) {
+ ServletHelper.setUser(aRequest, user);
+ usersModule.recordLogin(user);
+ aRequest.getSession().setAttribute("sessiontracker", new SessionTracker(username, user.getId()));
+ }
+ }
+
+ return user;
+ }
+ catch (Throwable t) {
+ throw new ServletException(t.getMessage());
+ }
+ }
+
+ public void process(HttpServletRequest aRequest, HttpServletResponse aResponse) throws ServletException, IOException, UnavailableException {
+ try {
+ long startTime = System.currentTimeMillis();
+ long sessionConnectTime = 0;
+
+ HttpSession session = aRequest.getSession(true);
+ setNoCaching(aResponse);
+ aResponse.setContentType("text/html; charset=" +
+ configuration.
+ getString("Mir.DefaultHTMLCharset", "UTF-8"));
+
+ EntityUsers userEntity = checkCredentials(aRequest);
+
+ if (userEntity == null) {
+ String queryString = aRequest.getQueryString();
+
+ if ( (queryString != null) && (queryString.length() != 0) && session.getAttribute("login.target") == null &&
+ (aRequest.getParameter("module")==null ||
+ (!aRequest.getParameter("module").equals("login") && !aRequest.getParameter("module").equals("logout")))) {
+ session.setAttribute("login.target", queryString);
+ }
+
+ _sendLoginPage(aResponse, aRequest);
+ }
+ else {
+ String moduleName = aRequest.getParameter("module");
+ checkLanguage(session, aRequest);
+
+ if ( ( (moduleName == null) || moduleName.equals(""))) {
+ moduleName="Admin";
+ }
+
+ if (moduleName.equals("login")) {
+ String target = (String) session.getAttribute("login.target");
+
+ if (target != null) {
+ ServletHelper.redirect(aResponse, target);
+ }
+ else {
+ ServletHelper.redirect(aResponse, "");
+ }
+ }
+ else if (moduleName.equals("logout")) {
+ logger.info(userEntity.getFieldValue("login") + " has logged out");
+ session.invalidate();
+ _sendLoginPage(aResponse, aRequest);
+ return;
+ }
+ else {
+ try {
+ AdminServletModule servletModule = getServletModuleForName(moduleName);
+ servletModule.handleRequest(aRequest, aResponse);
+
+ sessionConnectTime = System.currentTimeMillis() - startTime;
+ logger.info("EXECTIME (" + moduleName + "): " + sessionConnectTime + " ms");
+ }
+ catch (Throwable e) {
+ Throwable cause = ExceptionRoutines.traceCauseException(e);
+
+ if (cause instanceof ServletModuleUserExc)
+ handleUserError(aRequest, aResponse, (ServletModuleUserExc) cause);
+ else
+ handleError(aRequest, aResponse, cause);
+ }
+
+ if (aRequest.getParameter("killsession")!=null)
+ aRequest.getSession().invalidate();
+ }
+ }
+ }
+ catch (Throwable t) {
+ throw new ServletException(t.toString());
+ }
+ }
+
+ /**
+ * caching routine to get a module for a module name
+ *
+ * @param aModuleName the module name
+ * @return the requested module
+ * @throws ServletModuleExc
+ */
+ private static AdminServletModule getServletModuleForName(String aModuleName) throws ServletModuleExc {
+ return ServletHelper.getServletModule(aModuleName);
+ }
+
+ private void handleUserError(HttpServletRequest aRequest, HttpServletResponse aResponse, ServletModuleUserExc anException) {
+ try {
+ logger.info("user error: " + anException.getMessage());
+
+ Map responseData = ServletHelper.makeGenerationData(aRequest, aResponse, new Locale[] {getLocale(aRequest), getFallbackLocale()});
+
+ Bundle bundle =
+ MirGlobal.getBundleFactory().getBundle("etc/bundles/adminlocal", new
+ String[] { getLocale(aRequest).getLanguage() });
+ Bundle defaultBundle =
+ MirGlobal.getBundleFactory().getBundle("bundles/admin", new
+ String[] { getLocale(aRequest).getLanguage() });
+ String message =
+ bundle.getValue(anException.getMessage(), Arrays.asList(anException.getParameters()));
+
+ if (message==null) {
+ message =
+ defaultBundle.getValue(anException.getMessage(), Arrays.asList(anException.getParameters()));
+ }
+
+ responseData.put("errorstring", message);
+ responseData.put("date", new GregorianCalendar().getTime());
+
+ ServletHelper.generateResponse(aResponse.getWriter(), responseData, MirPropertiesConfiguration.instance().getString("Mir.UserErrorTemplate"));
+ }
+ catch (Throwable e) {
+ logger.error("Error handling user error" + e.toString());
+ }
+ }
+
+ private void handleError(HttpServletRequest aRequest, HttpServletResponse aResponse, Throwable anException) {
+ try {
+ logger.error("error: " + anException);
+
+ Map responseData = ServletHelper.makeGenerationData(aRequest, aResponse, new Locale[] {getLocale(aRequest), getFallbackLocale()});
+
+ responseData.put("errorstring", anException.toString());
+ StringWriter writer = new StringWriter();
+ anException.printStackTrace(new PrintWriter(writer));
+ responseData.put("stacktrace", writer.toString());
+ responseData.put("date", new GregorianCalendar().getTime());
+
+ ServletHelper.generateResponse(aResponse.getWriter(), responseData, MirPropertiesConfiguration.instance().getString("Mir.ErrorTemplate"));
+ }
+ catch (Throwable e) {
+ logger.error("Error handling error: " + e.toString());
+
+ try {
+ Throwable rootException = ExceptionRoutines.traceCauseException(anException);
+
+ PrintWriter writer = aResponse.getWriter();
+ writer.println("<html><head><title>FATAL Error</title><body>");
+ writer.println("<h1>" + rootException.toString()+"</h1>");
+ writer.println("<code>");
+ rootException.printStackTrace(writer);
+ writer.println("</code>");
+ writer.println("</body></html>");
+ writer.close();
+ }
+ catch (Throwable t) {
+
+ }
+ }
+ }
+
+ // Redirect-methods
+ private void _sendLoginPage(HttpServletResponse aResponse, HttpServletRequest aRequest) {
+ String loginTemplate = configuration.getString("Mir.LoginTemplate");
+
+ try {
+ Map responseData = ServletHelper.makeGenerationData(aRequest, aResponse, new Locale[] {getLocale(aRequest), getFallbackLocale()});
+
+ responseData.put("defaultlanguage", getDefaultLanguage(aRequest));
+ responseData.put("languages", getLoginLanguages());
+
+ ServletHelper.generateResponse(aResponse.getWriter(), responseData, loginTemplate);
+ }
+ catch (Throwable e) {
+ handleError(aRequest, aResponse, e);
+ }
+ }
+
+ public String getServletInfo() {
+ return "Mir " + configuration.getString("Mir.Version");
+ }
+
+ private class SessionTracker implements HttpSessionBindingListener {
+ private String name;
+ private String id;
+
+ public SessionTracker(String aUserName, String anId) {
+ name = aUserName;
+ id = anId;
+ }
+
+ public void valueBound(HttpSessionBindingEvent anEvent) {
+ MirGlobal.registerLogin(name, id);
+ }
+
+ public void valueUnbound(HttpSessionBindingEvent anEvent) {
+ MirGlobal.registerLogout(name, id);
+ }
+ }
+}
projects / mir.git / blobdiff