From bc9f6a12a3bd068f1b9f781539c41d8d86b7e409 Mon Sep 17 00:00:00 2001
From: ulrich <not disclosed>
Date: Thu, 28 Dec 2017 16:21:19 +0000
Subject: [PATCH] Generischen Filtermechanismus zur Veraenderung von Server-Antworten hinzugefuegt.

---
 src/de/uhilger/wbx/web/ViewServlet.java |   46 ++++++++++++++++++++++++++++++++++++++--------
 1 files changed, 38 insertions(+), 8 deletions(-)

diff --git a/src/de/uhilger/wbx/web/ViewServlet.java b/src/de/uhilger/wbx/web/ViewServlet.java
index 4b3119c..76e1a04 100644
--- a/src/de/uhilger/wbx/web/ViewServlet.java
+++ b/src/de/uhilger/wbx/web/ViewServlet.java
@@ -18,11 +18,14 @@
 package de.uhilger.wbx.web;
 
 import java.io.IOException;
+import java.security.Principal;
+import java.util.logging.Level;
 import java.util.logging.Logger;
 import javax.servlet.ServletException;
 import javax.servlet.ServletOutputStream;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import org.apache.catalina.servlets.DefaultServlet;
 
 /**
  * Das ViewServlet f&uuml;gt dem DefaultServlet von Tomcat 
@@ -33,12 +36,13 @@
  * 
  * TODO: Stylesheets dynamisch einbinden
  */
-public class ViewServlet extends WbxServlet {
+public class ViewServlet extends DefaultServlet {
   
   private static final Logger logger = Logger.getLogger(ViewServlet.class.getName());
-  //private static final String HOME_CTX = "/home";
+  private static final String HOME_CTX = "/home";
 
-  protected void seiteAusgeben(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
+
+  private void seiteAusgeben(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
     ServletOutputStream out = response.getOutputStream();
     printHeader(out);
     super.doGet(request, response);
@@ -60,8 +64,35 @@
     out.print("</body></html>");
   }
   
-  /*
-  private String getUrlUser(HttpServletRequest request, String userName) throws IOException {
+  /**
+   * Handles the HTTP <code>GET</code> method.
+   *
+   * @param request servlet request
+   * @param response servlet response
+   * @throws ServletException if a servlet-specific error occurs
+   * @throws IOException if an I/O error occurs
+   */
+  @Override
+  protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException  {
+    String contextPath = request.getContextPath();
+    if(HOME_CTX.equals(contextPath)) {
+      String userName = getUserName(request);
+      if (userName != null) {
+        String urlUser = getUrlUser(request, userName);
+        if(userName.equals(urlUser)) {
+          seiteAusgeben(request, response);
+        } else {
+          logger.fine("Wrong user.");
+        }
+      } else {
+        logger.fine("Missing login.");
+      }
+    } else {
+      seiteAusgeben(request, response);
+    }
+  }
+  
+  protected String getUrlUser(HttpServletRequest request, String userName) {
     String result = "";
     String requestUrlStr = request.getRequestURL().toString();
     String contextPath = request.getContextPath();
@@ -79,7 +110,7 @@
     return result;
   }
   
-  private String getUserName(HttpServletRequest hr) {
+  protected String getUserName(HttpServletRequest hr) {
     String userName = null;
     Object p = hr.getUserPrincipal();
     if (p instanceof Principal) {
@@ -87,8 +118,7 @@
     }
     return userName;
   }
-  */
-
+  
   /**
    * Returns a short description of the servlet.
    *

--
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