4 import java.lang.reflect.*;
5 import javax.servlet.*;
6 import javax.servlet.http.*;
9 import freemarker.template.*;
14 import mircoders.servlet.*;
15 import mircoders.module.*;
16 import mircoders.entity.*;
17 import mircoders.storage.*;
20 * Mir.java - main servlet, that dispatches to servletmodules
22 * @author RK 1999-2001
27 public class Mir extends AbstractServlet
30 private static ModuleUsers usersModule=null;
31 private static ModuleMessage messageModule=null;
32 private static boolean confed=false;
33 public HttpSession session;
36 public void doGet(HttpServletRequest req, HttpServletResponse res)
37 throws ServletException, IOException {
41 public void doPost(HttpServletRequest req, HttpServletResponse res)
42 throws ServletException, IOException {
44 long startTime = (new java.util.Date()).getTime();
45 Class theServletModule;
47 long sessionConnectTime=0;
50 // get the configration
52 confed = getConfig(req);
54 MirConfig.setServletName(getServletName());
56 session = req.getSession(true);
58 if (req.getServerPort() == 443) http="https"; else http="http";
59 res.setContentType("text/html");
60 String moduleName = req.getParameter("module");
62 if(session.getAttribute("Language")==null){
63 setLanguage(session,getAcceptLanguage(req));
67 if (moduleName!=null && moduleName.equals("login")) {
68 String user=req.getParameter("login");
69 String passwd= req.getParameter("password");
70 String lang = req.getParameter("lang");
71 theLog.printDebugInfo("--login: evaluating for user: "+user);
72 EntityUsers userEntity = allowedUser(user,passwd);
73 if (userEntity==null) {
74 // login failed: redirecting to login
75 theLog.printWarning("--login: failed!");
76 _sendLoginPage(res,req,res.getWriter());
81 //if accept-language!=selected language change language
82 if(!getLanguage(req,session).equals(lang)){
83 setLanguage(session,lang);
86 theLog.printInfo("--login: successful! setting uid: " + userEntity.getId());
87 session.setAttribute("login.uid", userEntity);
88 theLog.printDebugInfo("--login: trying to retrieve login.target");
89 String target = (String)session.getAttribute("login.target");
92 theLog.printDebugInfo("Redirect: "+target);
93 int serverPort = req.getServerPort();
95 String redirectString ="";
99 redirect=res.encodeURL(http + "://" + req.getServerName() + target);
100 redirectString = "<html><head><meta http-equiv=refresh content=\"1;URL="
102 + "\"></head><body>going <a href=\"" + redirect + "\">Mir</a></body></html>";
104 redirect=res.encodeURL(http + "://" + req.getServerName() + ":" +req.getServerPort() + target);
105 redirectString = "<html><head><meta http-equiv=refresh content=\"1;URL="
107 + "\"></head><body>going <a href=\"" + redirect + "\">Mir</a></body></html>";
109 res.getWriter().println(redirectString);
112 //res.sendRedirect(redirect);
115 // redirecting to default target
116 theLog.printDebugInfo("--login: no target - redirecting to default");
117 _sendStartPage(res,req,res.getWriter(),userEntity);
120 } // if login succesful
123 if (moduleName!=null && moduleName.equals("logout")) {
124 theLog.printDebugInfo("--logout");
125 session.invalidate();
126 _sendLoginPage(res,req,res.getWriter());
131 EntityUsers userEntity = (EntityUsers)session.getAttribute("login.uid");
132 if (userEntity == null) {
133 // redirect to loginpage
134 String redirectString = req.getRequestURI();
135 String queryString = req.getQueryString();
136 if (queryString!=null && !queryString.equals("")) {
137 redirectString += "?" + req.getQueryString();
138 theLog.printDebugInfo("STORING: " + redirectString);
139 session.setAttribute("login.target", redirectString);
141 _sendLoginPage(res,req,res.getWriter());
145 // If no module is specified goto standard startpage
146 if (moduleName == null || moduleName.equals("")) {
147 theLog.printDebugInfo("no module: redirect to standardpage");
148 _sendStartPage(res,req, res.getWriter(),userEntity);
152 //From now on regular dispatching...
155 theServletModule = Class.forName("mircoders.servlet.ServletModule" + moduleName);
156 } catch (ClassNotFoundException e) {
157 // searching servletmodule in mir.servlet-classes
158 theServletModule = Class.forName("mir.servlet.ServletModule" + moduleName);
160 //Instantiate the ServletModule
161 Method m = theServletModule.getMethod("getInstance",null);
162 smod = (ServletModule)m.invoke(null,null);
163 ServletModuleDispatch.dispatch(smod,req,res);
165 catch (NoSuchMethodException e) { handleError( res,res.getWriter(), "ServletModule" + moduleName + " getInstance() not found."); }
166 catch (InvocationTargetException e) { handleError( res,res.getWriter(), "ServletModule" + moduleName + " target not found."); }
167 catch (ClassNotFoundException e) { handleError(res, res.getWriter(), "ServletModule" + moduleName + " not found."); }
168 catch (IllegalArgumentException e) { handleError( res,res.getWriter(), "ServletModule" + moduleName + " not found."); }
169 catch (ServletModuleUserException e) {
170 handleUserError(res,res.getWriter(), e.getMsg());
172 catch (ServletModuleException e){ handleError(res,res.getWriter(), "ServletException in Module ServletModule" + moduleName + " -- " + e.toString()); }
173 catch (IllegalAccessException e){
174 handleError(res,res.getWriter(), "No access to class ServletModule" + moduleName + " -- " + e.toString()); }
177 sessionConnectTime = new java.util.Date().getTime() - startTime;
178 theLog.printInfo("EXECTIME (" + moduleName + "): " + sessionConnectTime + " ms");
181 private void handleError(HttpServletResponse res, PrintWriter out, String errorString) {
183 theLog.printError(errorString);
184 SimpleHash modelRoot = new SimpleHash();
185 modelRoot.put("errorstring", new SimpleScalar(errorString));
186 modelRoot.put("date", new SimpleScalar(StringUtil.date2readableDateTime(new GregorianCalendar())));
187 HTMLTemplateProcessor.process(res,MirConfig.getProp("Mir.ErrorTemplate"),modelRoot,out);
190 catch (Exception e) {
191 System.err.println("Error in ErrorTemplate");
195 private void handleUserError(HttpServletResponse res,PrintWriter out, String errorString) {
198 theLog.printError(errorString);
199 SimpleHash modelRoot = new SimpleHash();
200 modelRoot.put("errorstring", new SimpleScalar(errorString));
201 modelRoot.put("date", new SimpleScalar(StringUtil.date2readableDateTime(new GregorianCalendar())));
202 HTMLTemplateProcessor.process(res,MirConfig.getProp("Mir.UserErrorTemplate"),modelRoot,out);
205 catch (Exception e) {
206 System.err.println("Fehler in UserErrorTemplate");
211 * evaluate login for user / password
213 protected EntityUsers allowedUser(String user, String password) {
215 if (usersModule == null) usersModule = new ModuleUsers(DatabaseUsers.getInstance());
216 return usersModule.getUserForLogin(user, password);
218 catch(Exception e) { theLog.printDebugInfo(e.toString()); return null; }
222 private void _sendLoginPage(HttpServletResponse res,HttpServletRequest req, PrintWriter out) {
223 String loginTemplate = "login.template";
224 String sessionUrl=res.encodeURL("");
225 //session = req.getSession(true);
227 theLog.printDebugInfo("login: "+lang);
229 lang=getAcceptLanguage(req);
231 SimpleHash mergeData = new SimpleHash();
232 mergeData.put("session",sessionUrl);
233 HTMLTemplateProcessor.process(res,lang+"/"+loginTemplate, mergeData, out);
234 } catch(HTMLParseException e) {
235 handleError(res, out, "Error in logintemplate.");
239 private void _sendStartPage(HttpServletResponse res, HttpServletRequest req,PrintWriter out, EntityUsers userEntity) {
240 String startTemplate = "start_admin.template";
241 String sessionUrl=res.encodeURL("");
243 // merge with logged in user and messages
244 SimpleHash mergeData = new SimpleHash();
245 mergeData.put("session",sessionUrl);
246 mergeData.put("login_user", userEntity);
247 if (messageModule == null) messageModule = new ModuleMessage(DatabaseMessages.getInstance());
248 mergeData.put("messages", HTMLTemplateProcessor.makeSimpleList(messageModule.getByWhereClause(null, "webdb_create desc",0,10)));
249 HTMLTemplateProcessor.process(res,getLanguage(req,session)+"/"+startTemplate, mergeData,out);
252 handleError( res,out, "error while trying to send startpage. " + e.toString());
256 public String getServletInfo(){ return "Mir 1.0 rev02 multilanguage"; }