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);
55 session = req.getSession(true);
57 if (req.getServerPort() == 443) http="https"; else http="http";
58 res.setContentType("text/html");
59 String moduleName = req.getParameter("module");
61 if(session.getAttribute("Language")==null){
62 setLanguage(session,getAcceptLanguage(req));
66 if (moduleName!=null && moduleName.equals("login")) {
67 String user=req.getParameter("login");
68 String passwd= req.getParameter("password");
69 String lang = req.getParameter("lang");
70 theLog.printDebugInfo("--login: evaluating for user: "+user);
71 EntityUsers userEntity = allowedUser(user,passwd);
72 if (userEntity==null) {
73 // login failed: redirecting to login
74 theLog.printWarning("--login: failed!");
75 _sendLoginPage(res,req,res.getWriter());
80 //if accept-language!=selected language change language
81 if(!getLanguage(req,session).equals(lang)){
82 setLanguage(session,lang);
85 theLog.printInfo("--login: successful! setting uid: " + userEntity.getId());
86 session.setAttribute("login.uid", userEntity);
87 theLog.printDebugInfo("--login: trying to retrieve login.target");
88 String target = (String)session.getAttribute("login.target");
91 theLog.printDebugInfo("Redirect: "+target);
92 int serverPort = req.getServerPort();
94 String redirectString ="";
98 redirect=res.encodeURL(http + "://" + req.getServerName() + target);
99 redirectString = "<html><head><meta http-equiv=refresh content=\"1;URL="
101 + "\"></head><body>going <a href=\"" + redirect + "\">Mir</a></body></html>";
103 redirect=res.encodeURL(http + "://" + req.getServerName() + ":" +req.getServerPort() + target);
104 redirectString = "<html><head><meta http-equiv=refresh content=\"1;URL="
106 + "\"></head><body>going <a href=\"" + redirect + "\">Mir</a></body></html>";
108 res.getWriter().println(redirectString);
111 //res.sendRedirect(redirect);
114 // redirecting to default target
115 theLog.printDebugInfo("--login: no target - redirecting to default");
116 _sendStartPage(res,req,res.getWriter(),userEntity);
119 } // if login succesful
122 if (moduleName!=null && moduleName.equals("logout")) {
123 theLog.printDebugInfo("--logout");
124 session.invalidate();
125 _sendLoginPage(res,req,res.getWriter());
130 EntityUsers userEntity = (EntityUsers)session.getAttribute("login.uid");
131 if (userEntity == null) {
132 // redirect to loginpage
133 String redirectString = req.getRequestURI();
134 String queryString = req.getQueryString();
135 if (queryString!=null && !queryString.equals("")) {
136 redirectString += "?" + req.getQueryString();
137 theLog.printDebugInfo("STORING: " + redirectString);
138 session.setAttribute("login.target", redirectString);
140 _sendLoginPage(res,req,res.getWriter());
144 // If no module is specified goto standard startpage
145 if (moduleName == null || moduleName.equals("")) {
146 theLog.printDebugInfo("no module: redirect to standardpage");
147 _sendStartPage(res,req, res.getWriter(),userEntity);
151 //From now on regular dispatching...
154 theServletModule = Class.forName("mircoders.servlet.ServletModule" + moduleName);
155 } catch (ClassNotFoundException e) {
156 // searching servletmodule in mir.servlet-classes
157 theServletModule = Class.forName("mir.servlet.ServletModule" + moduleName);
159 //Instantiate the ServletModule
160 Method m = theServletModule.getMethod("getInstance",null);
161 smod = (ServletModule)m.invoke(null,null);
162 ServletModuleDispatch.dispatch(smod,req,res);
164 catch (NoSuchMethodException e) { handleError( res,res.getWriter(), "ServletModule" + moduleName + " getInstance() not found."); }
165 catch (InvocationTargetException e) { handleError( res,res.getWriter(), "ServletModule" + moduleName + " target not found."); }
166 catch (ClassNotFoundException e) { handleError(res, res.getWriter(), "ServletModule" + moduleName + " not found."); }
167 catch (IllegalArgumentException e) { handleError( res,res.getWriter(), "ServletModule" + moduleName + " not found."); }
168 catch (ServletModuleException e){ handleError(res,res.getWriter(), "ServletException in Module ServletModule" + moduleName + " -- " + e.toString()); }
169 catch (IllegalAccessException e){
170 handleError(res,res.getWriter(), "No access to class ServletModule" + moduleName + " -- " + e.toString()); }
173 sessionConnectTime = new java.util.Date().getTime() - startTime;
174 theLog.printInfo("EXECTIME (" + moduleName + "): " + sessionConnectTime + " ms");
177 private void handleError(HttpServletResponse res, PrintWriter out, String errorString) {
179 theLog.printError(errorString);
180 SimpleHash modelRoot = new SimpleHash();
181 modelRoot.put("errorstring", new SimpleScalar(errorString));
182 modelRoot.put("date", new SimpleScalar(StringUtil.date2readableDateTime(new GregorianCalendar())));
183 HTMLTemplateProcessor.process(res,MirConfig.getProp("Mir.ErrorTemplate"),modelRoot,out);
186 catch (Exception e) {
187 System.err.println("Error in ErrorTemplate");
192 * evaluate login for user / password
194 protected EntityUsers allowedUser(String user, String password) {
196 if (usersModule == null) usersModule = new ModuleUsers(DatabaseUsers.getInstance());
197 return usersModule.getUserForLogin(user, password);
199 catch(Exception e) { theLog.printDebugInfo(e.toString()); return null; }
203 private void _sendLoginPage(HttpServletResponse res,HttpServletRequest req, PrintWriter out) {
204 String loginTemplate = "login.template";
205 String sessionUrl=res.encodeURL("");
206 //session = req.getSession(true);
208 theLog.printDebugInfo("login: "+lang);
210 lang=getAcceptLanguage(req);
212 SimpleHash mergeData = new SimpleHash();
213 mergeData.put("session",sessionUrl);
214 HTMLTemplateProcessor.process(res,lang+"/"+loginTemplate, mergeData, out);
215 } catch(HTMLParseException e) {
216 handleError(res, out, "Error in logintemplate.");
220 private void _sendStartPage(HttpServletResponse res, HttpServletRequest req,PrintWriter out, EntityUsers userEntity) {
221 String startTemplate = "start_admin.template";
222 String sessionUrl=res.encodeURL("");
224 // merge with logged in user and messages
225 SimpleHash mergeData = new SimpleHash();
226 mergeData.put("session",sessionUrl);
227 mergeData.put("login_user", HTMLTemplateProcessor.makeSimpleHash(userEntity));
228 if (messageModule == null) messageModule = new ModuleMessage(DatabaseMessages.getInstance());
229 mergeData.put("messages", HTMLTemplateProcessor.makeSimpleList(messageModule.getByWhereClause(null, "webdb_create desc",0,10)));
230 HTMLTemplateProcessor.process(res,getLanguage(req,session)+"/"+startTemplate, mergeData,out);
233 handleError( res,out, "error while trying to send startpage. " + e.toString());
237 public String getServletInfo(){ return "Mir 1.0 rev02 multilanguage"; }