-import java.io.*;
-import java.util.*;
-import java.net.*;
-import java.lang.reflect.*;
-import javax.servlet.*;
-import javax.servlet.http.*;
-import java.sql.*;
-
-import freemarker.template.*;
+/*
+ * Copyright (C) 2001, 2002 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 the com.oreilly.servlet library, any library
+ * licensed under the Apache Software License, The Sun (tm) Java Advanced
+ * Imaging library (JAI), The Sun JIMI library (or with modified versions of
+ * the above that use the same license as the above), 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.misc.*;
+import freemarker.template.SimpleHash;
+import freemarker.template.SimpleScalar;
+import mir.misc.HTMLParseException;
+import mir.misc.HTMLTemplateProcessor;
+import mir.misc.MirConfig;
+import mir.misc.StringUtil;
import mir.servlet.*;
+import mircoders.entity.EntityUsers;
+import mircoders.module.ModuleMessage;
+import mircoders.module.ModuleUsers;
+import mircoders.storage.DatabaseMessages;
+import mircoders.storage.DatabaseUsers;
-import mircoders.servlet.*;
-import mircoders.module.*;
-import mircoders.entity.*;
-import mircoders.storage.*;
+import javax.servlet.ServletException;
+import javax.servlet.UnavailableException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.lang.reflect.Method;
+import java.util.GregorianCalendar;
+import java.util.HashMap;
+import java.util.Locale;
/**
- * Mir.java - main servlet, that dispatches to servletmodules
+ * Mir.java - main servlet, that dispatches to servletmodules
*
- * @author RK 1999-2001
+ * @author $Author: mh $
+ * @version $Revision: 1.17.2.3 $ $Date: 2002/12/06 07:14:45 $
*
*/
-public class Mir extends AbstractServlet
-{
+public class Mir extends AbstractServlet {
+
+ private static ModuleUsers usersModule = null;
+ private static ModuleMessage messageModule = null;
+ private final static HashMap servletModuleInstanceHash = new HashMap();
- private static ModuleUsers usersModule=null;
- private static ModuleMessage messageModule=null;
- private static boolean confed=false;
- public HttpSession session;
+ private static boolean nameSet = false;
+ public HttpSession session;
- public void doGet(HttpServletRequest req, HttpServletResponse res)
- throws ServletException, IOException {
- doPost(req,res);
- }
+ public void doGet(HttpServletRequest req, HttpServletResponse res)
+ throws ServletException, IOException {
+ doPost(req, res);
+ }
- public void doPost(HttpServletRequest req, HttpServletResponse res)
- throws ServletException, IOException {
+ public void doPost(HttpServletRequest req, HttpServletResponse res)
+ throws ServletException, IOException, UnavailableException {
- long startTime = (new java.util.Date()).getTime();
- Class theServletModule;
- ServletModule smod;
- long sessionConnectTime=0;
- String http="";
+ long startTime = System.currentTimeMillis();
+ long sessionConnectTime = 0;
+ String http = "";
- // get the configration
- if (!confed){
- confed = getConfig(req);
- }
+ // get the configration - this could conflict if 2 mirs are in the
+ // VM maybe? to be checked. -mh
+ if (getServletContext().getAttribute("mir.confed") == null) {
+ getConfig(req);
+ }
+
+ if (!nameSet) {
+ MirConfig.setAdminServletName(getServletName());
+ nameSet = true;
+ }
- session = req.getSession(true);
-
- if (req.getServerPort() == 443) http="https"; else http="http";
- res.setContentType("text/html");
- String moduleName = req.getParameter("module");
+ session = req.getSession(true);
- if(session.getAttribute("Language")==null){
- setLanguage(session,getAcceptLanguage(req));
- }
+ if (req.getServerPort() == 443) http = "https"; else http = "http";
- // Authentifizierung
- if (moduleName!=null && moduleName.equals("login")) {
- String user=req.getParameter("login");
- String passwd= req.getParameter("password");
- String lang = req.getParameter("lang");
- theLog.printDebugInfo("--login: evaluating for user: "+user);
- EntityUsers userEntity = allowedUser(user,passwd);
- if (userEntity==null) {
- // login failed: redirecting to login
- theLog.printWarning("--login: failed!");
- _sendLoginPage(res,req,res.getWriter());
- return;
- } else {
- // login successful
-
- //if accept-language!=selected language change language
- if(!getLanguage(req,session).equals(lang)){
- setLanguage(session,lang);
- }
-
- theLog.printInfo("--login: successful! setting uid: " + userEntity.getId());
- session.setAttribute("login.uid", userEntity);
- theLog.printDebugInfo("--login: trying to retrieve login.target");
- String target = (String)session.getAttribute("login.target");
-
- if (target != null) {
- theLog.printDebugInfo("Redirect: "+target);
- int serverPort = req.getServerPort();
- String redirect = "";
- String redirectString ="";
-
-
- if(serverPort==80){
- redirect=res.encodeURL(http + "://" + req.getServerName() + target);
- redirectString = "<html><head><meta http-equiv=refresh content=\"1;URL="
- + redirect
- + "\"></head><body>going <a href=\"" + redirect + "\">Mir</a></body></html>";
- } else {
- redirect=res.encodeURL(http + "://" + req.getServerName() + ":" +req.getServerPort() + target);
- redirectString = "<html><head><meta http-equiv=refresh content=\"1;URL="
- + redirect
- + "\"></head><body>going <a href=\"" + redirect + "\">Mir</a></body></html>";
- }
- res.getWriter().println(redirectString);
-
-
- //res.sendRedirect(redirect);
-
- } else {
- // redirecting to default target
- theLog.printDebugInfo("--login: no target - redirecting to default");
- _sendStartPage(res,req,res.getWriter(),userEntity);
- }
- return;
- } // if login succesful
- } // if login
-
- if (moduleName!=null && moduleName.equals("logout")) {
- theLog.printDebugInfo("--logout");
- session.invalidate();
- _sendLoginPage(res,req,res.getWriter());
- return;
- }
+ //nothing in Mir can or should be cached as it's all dynamic...
+ //
+ //this needs to be done here and not per page (via meta tags) as some
+ //browsers have problems w/ it per-page -mh
+ res.setHeader("Pragma", "no-cache");
+ res.setDateHeader("Expires", 0);
+ res.setHeader("Cache-Control", "no-cache");
+ res.setContentType("text/html; charset="
+ +MirConfig.getProp("Mir.DefaultEncoding"));
+ String moduleName = req.getParameter("module");
- // Check if authed!
- EntityUsers userEntity = (EntityUsers)session.getAttribute("login.uid");
- if (userEntity == null) {
- // redirect to loginpage
- String redirectString = req.getRequestURI();
- if (req.getQueryString()!=null) redirectString += "?" + req.getQueryString();
- theLog.printDebugInfo("STORING: " + redirectString);
- session.setAttribute("login.target", redirectString);
- _sendLoginPage(res,req,res.getWriter());
- return;
- }
+ checkLanguage(session, req);
- // Bei blossem Serveltaufruf redirect auf Standardstarttemplate
- if (moduleName == null || moduleName.equals("")) {
- theLog.printDebugInfo("no module: redirect to standardpage");
- _sendStartPage(res,req, res.getWriter(),userEntity);
- return;
+ /** @todo for cleanup and readability this should be moved to
+ * method loginIfNecessary() */
+
+ // Authentifizierung
+ if (moduleName != null && moduleName.equals("login")) {
+ String user = req.getParameter("login");
+ String passwd = req.getParameter("password");
+ theLog.printDebugInfo("--login: evaluating for user: " + user);
+ EntityUsers userEntity = allowedUser(user, passwd);
+ if (userEntity == null) {
+ // login failed: redirecting to login
+ theLog.printWarning("--login: failed!");
+ _sendLoginPage(res, req, res.getWriter());
+ return;
+ }
+ else {
+ // login successful
+
+ theLog.printInfo("--login: successful! setting uid: " + userEntity.getId());
+ session.setAttribute("login.uid", userEntity);
+ theLog.printDebugInfo("--login: trying to retrieve login.target");
+ String target = (String) session.getAttribute("login.target");
+
+ if (target != null) {
+ theLog.printDebugInfo("Redirect: " + target);
+ int serverPort = req.getServerPort();
+ String redirect = "";
+ String redirectString = "";
+
+
+ if (serverPort == 80) {
+ redirect = res.encodeURL(http + "://" + req.getServerName() + target);
+ redirectString = "<html><head><meta http-equiv=refresh content=\"1;URL="
+ + redirect
+ + "\"></head><body>going <a href=\"" + redirect + "\">Mir</a></body></html>";
+ }
+ else {
+ redirect = res.encodeURL(http + "://" + req.getServerName() + ":" + req.getServerPort() + target);
+ redirectString = "<html><head><meta http-equiv=refresh content=\"1;URL="
+ + redirect
+ + "\"></head><body>going <a href=\"" + redirect + "\">Mir</a></body></html>";
+ }
+ res.getWriter().println(redirectString);
+
+
+ //res.sendRedirect(redirect);
+
+ }
+ else {
+ // redirecting to default target
+ theLog.printDebugInfo("--login: no target - redirecting to default");
+ _sendStartPage(res, req, res.getWriter(), userEntity);
+ }
+ return;
+ } // if login succesful
+ } // if login
+
+ if (moduleName != null && moduleName.equals("logout")) {
+ theLog.printDebugInfo("--logout");
+ session.invalidate();
+
+ //session = req.getSession(true);
+ //checkLanguage(session, req);
+ _sendLoginPage(res, req, res.getWriter());
+ return;
+ }
+
+ // Check if authed!
+ EntityUsers userEntity = (EntityUsers) session.getAttribute("login.uid");
+ if (userEntity == null) {
+ // redirect to loginpage
+ String redirectString = req.getRequestURI();
+ String queryString = req.getQueryString();
+ if (queryString != null && !queryString.equals("")) {
+ redirectString += "?" + req.getQueryString();
+ theLog.printDebugInfo("STORING: " + redirectString);
+ session.setAttribute("login.target", redirectString);
+ }
+ _sendLoginPage(res, req, res.getWriter());
+ return;
+ }
+
+ // If no module is specified goto standard startpage
+ if (moduleName == null || moduleName.equals("")) {
+ theLog.printDebugInfo("no module: redirect to standardpage");
+ _sendStartPage(res, req, res.getWriter(), userEntity);
+ return;
+ }
+ // end of auth
+
+ // From now on regular dispatching...
+ try {
+ // get servletmodule by parameter and continue with dispacher
+ ServletModule smod = getServletModuleForName(moduleName);
+ ServletModuleDispatch.dispatch(smod, req, res);
+ }
+ catch (ServletModuleException e) {
+ handleError(req, res, res.getWriter(),
+ "ServletException in Module " + moduleName + " -- " + e.toString());
+ }
+ catch (ServletModuleUserException e) {
+ handleUserError(req, res, res.getWriter(), e.getMsg());
+ }
+
+ // timing...
+ sessionConnectTime = System.currentTimeMillis() - startTime;
+ theLog.printInfo("EXECTIME (" + moduleName + "): " + sessionConnectTime + " ms");
}
- //From now on normal Dispatching...
- try {
- try {
- theServletModule = Class.forName("mircoders.servlet.ServletModule" + moduleName);
- } catch (ClassNotFoundException e) {
- // searching Servlet webdb.servlet-classes
- theServletModule = Class.forName("mir.servlet.ServletModule" + moduleName);
- }
- //Instanciate the ServletModule
- Method m = theServletModule.getMethod("getInstance",null);
- smod = (ServletModule)m.invoke(null,null);
- ServletModuleDispatch.dispatch(smod,req,res);
+
+ /**
+ * Private method getServletModuleForName returns ServletModule
+ * from Cache
+ *
+ * @return ServletModule
+ *
+ */
+ private static ServletModule getServletModuleForName(String moduleName)
+ throws ServletModuleException {
+
+ // Instance in Map ?
+ if (!servletModuleInstanceHash.containsKey(moduleName)) {
+ // was not found in hash...
+ try {
+ Class theServletModuleClass = null;
+ try {
+ // first we try to get ServletModule from stern.che3.servlet
+ theServletModuleClass = Class.forName("mircoders.servlet.ServletModule" + moduleName);
+ }
+ catch (ClassNotFoundException e) {
+ // on failure, we try to get it from lib-layer
+ theServletModuleClass = Class.forName("mir.servlet.ServletModule" + moduleName);
+ }
+ Method m = theServletModuleClass.getMethod("getInstance", null);
+ ServletModule smod = (ServletModule) m.invoke(null, null);
+ // we put it into map for further reference
+ servletModuleInstanceHash.put(moduleName, smod);
+ return smod;
+ }
+ catch (Exception e) {
+ throw new ServletModuleException("*** error resolving classname for " +
+ moduleName + " -- " + e.toString());
+ }
+ }
+ else
+ return (ServletModule) servletModuleInstanceHash.get(moduleName);
}
- catch (NoSuchMethodException e) { handleError( res,res.getWriter(), "ServletModule" + moduleName + " getInstance() nicht gefunden."); }
- catch (InvocationTargetException e) { handleError( res,res.getWriter(), "ServletModule" + moduleName + " target nicht gefunden."); }
- catch (ClassNotFoundException e) { handleError(res, res.getWriter(), "ServletModule" + moduleName + " nicht gefunden."); }
- catch (IllegalArgumentException e) { handleError( res,res.getWriter(), "ServletModule" + moduleName + " nicht gefunden."); }
- catch (ServletModuleException e){ handleError(res,res.getWriter(), "ServletException in Module ServletModule" + moduleName + " -- " + e.toString()); }
- catch (IllegalAccessException e){
- handleError(res,res.getWriter(), "Kein Zugriff auf Klasse ServletModule" + moduleName + " -- " + e.toString()); }
-
- // timing...
- sessionConnectTime = new java.util.Date().getTime() - startTime;
- theLog.printInfo("EXECTIME (" + moduleName + "): " + sessionConnectTime + " ms");
- }
-
- private void handleError(HttpServletResponse res, PrintWriter out, String errorString) {
- try {
- theLog.printError(errorString);
- SimpleHash modelRoot = new SimpleHash();
- modelRoot.put("errorstring", new SimpleScalar(errorString));
- modelRoot.put("date", new SimpleScalar(StringUtil.date2readableDateTime(new GregorianCalendar())));
- HTMLTemplateProcessor.process(res,Configuration.getProperty("Mir.ErrorTemplate"),modelRoot,out);
- out.close();
+
+
+ private void handleError(HttpServletRequest req, HttpServletResponse res,
+ PrintWriter out, String errorString) {
+
+ try {
+ theLog.printError(errorString);
+ SimpleHash modelRoot = new SimpleHash();
+ modelRoot.put("errorstring", new SimpleScalar(errorString));
+ modelRoot.put("date", new SimpleScalar(StringUtil.date2readableDateTime(new GregorianCalendar())));
+ HTMLTemplateProcessor.process(res, MirConfig.getProp("Mir.ErrorTemplate"), modelRoot, out, getLocale(req));
+ out.close();
+ }
+ catch (Exception e) {
+ System.err.println("Error in ErrorTemplate");
+ }
}
- catch (Exception e) {
- System.err.println("Fehler in ErrorTemplate");
+
+ private void handleUserError(HttpServletRequest req, HttpServletResponse res,
+ PrintWriter out, String errorString) {
+ try {
+ theLog.printError(errorString);
+ SimpleHash modelRoot = new SimpleHash();
+ modelRoot.put("errorstring", new SimpleScalar(errorString));
+ modelRoot.put("date", new SimpleScalar(StringUtil.date2readableDateTime(new GregorianCalendar())));
+ HTMLTemplateProcessor.process(res, MirConfig.getProp("Mir.UserErrorTemplate"),
+ modelRoot, out, getLocale(req));
+ out.close();
+ }
+ catch (Exception e) {
+ System.err.println("Fehler in UserErrorTemplate");
+ }
+
}
- }
-
- /**
- * evaluate login for user / password
- */
- protected EntityUsers allowedUser(String user, String password) {
- try {
- if (usersModule == null) usersModule = new ModuleUsers(DatabaseUsers.getInstance());
- return usersModule.getUserForLogin(user, password);
+
+ /**
+ * evaluate login for user / password
+ */
+ protected EntityUsers allowedUser(String user, String password) {
+ try {
+ if (usersModule == null) usersModule = new ModuleUsers(DatabaseUsers.getInstance());
+ return usersModule.getUserForLogin(user, password);
+ }
+ catch (Exception e) {
+ theLog.printDebugInfo(e.toString());
+ e.printStackTrace();
+ return null;
+ }
}
- catch(Exception e) { theLog.printDebugInfo(e.toString()); return null; }
- }
-
- // Redirect-methods
- private void _sendLoginPage(HttpServletResponse res,HttpServletRequest req, PrintWriter out) {
- String loginTemplate = "login.template";
- String sessionUrl=res.encodeURL("");
- //session = req.getSession(true);
- try {
- theLog.printDebugInfo("login: "+lang);
- if(lang==null){
- lang=getAcceptLanguage(req);
- }
- SimpleHash mergeData = new SimpleHash();
- mergeData.put("session",sessionUrl);
- HTMLTemplateProcessor.process(res,lang+"/"+loginTemplate, mergeData, out);
- } catch(HTMLParseException e) {
- handleError(res, out, "fehler in logintemplate.");
+
+ // Redirect-methods
+ private void _sendLoginPage(HttpServletResponse res, HttpServletRequest req, PrintWriter out) {
+ String loginTemplate = MirConfig.getProp("Mir.LoginTemplate");//"login.template";
+ // theLog.printDebugInfo("login template: "+loginTemplate);
+ String sessionUrl = res.encodeURL("");
+ //session = req.getSession(true);
+ try {
+ //theLog.printDebugInfo("login: "+lang);
+ //if(lang==null){
+ // lang=getAcceptLanguage(req);
+ //}
+ SimpleHash mergeData = new SimpleHash();
+ mergeData.put("session", sessionUrl);
+ HTMLTemplateProcessor.process(res, loginTemplate, mergeData, out, getLocale(req));
+ }
+ catch (HTMLParseException e) {
+ handleError(req, res, out, "Error in logintemplate.");
+ }
}
- }
-
- private void _sendStartPage(HttpServletResponse res, HttpServletRequest req,PrintWriter out, EntityUsers userEntity) {
- String startTemplate = "start_admin.template";
- String sessionUrl=res.encodeURL("");
- try {
- // merge with logged in user and messages
- SimpleHash mergeData = new SimpleHash();
- mergeData.put("session",sessionUrl);
- mergeData.put("login_user", HTMLTemplateProcessor.makeSimpleHash(userEntity));
- if (messageModule == null) messageModule = new ModuleMessage(DatabaseMessages.getInstance());
- mergeData.put("messages", HTMLTemplateProcessor.makeSimpleList(messageModule.getByWhereClause(null, "webdb_create desc",0,10)));
- HTMLTemplateProcessor.process(res,getLanguage(req,session)+"/"+startTemplate, mergeData,out);
+
+ private void _sendStartPage(HttpServletResponse res, HttpServletRequest req, PrintWriter out, EntityUsers userEntity) {
+ String startTemplate = "admin/start_admin.template";
+ String sessionUrl = res.encodeURL("");
+ try {
+ // merge with logged in user and messages
+ SimpleHash mergeData = new SimpleHash();
+ mergeData.put("session", sessionUrl);
+ mergeData.put("login_user", userEntity);
+ if (messageModule == null) messageModule = new ModuleMessage(DatabaseMessages.getInstance());
+ mergeData.put("messages", messageModule.getByWhereClause(null, "webdb_create desc", 0, 10));
+ HTMLTemplateProcessor.process(res, startTemplate, mergeData, out, getLocale(req));
+ }
+ catch (Exception e) {
+ handleError(req, res, out, "error while trying to send startpage. " + e.toString());
+ }
}
- catch(Exception e) {
- handleError( res,out, "error while trying to send startpage. " + e.toString());
+
+ public String getServletInfo() {
+ return "Mir "+MirConfig.getProp("Mir.Version");
}
- }
- public String getServletInfo(){ return "Mir 1.0 rev02 multilanguage"; }
+ private void checkLanguage(HttpSession session, HttpServletRequest req) {
+ // a lang parameter always sets the language
+ String lang = req.getParameter("lang");
+ if (lang != null) {
+ theLog.printInfo("selected language "+lang+" overrides accept-language");
+ setLanguage(session, lang);
+ setLocale(session, new Locale(lang, ""));
+ }
+ // otherwise store language from accept header in session
+ else if (session.getAttribute("Language") == null) {
+ theLog.printInfo("accept-language is "+req.getLocale().getLanguage());
+ setLanguage(session, req.getLocale().getLanguage());
+ setLocale(session, req.getLocale());
+ }
+ }
}