src/de/uhilger/wbx/web/CustomResponseWrapper.java | ●●●●● patch | view | raw | blame | history | |
src/de/uhilger/wbx/web/MarkdownServlet.java | ●●●●● patch | view | raw | blame | history | |
src/de/uhilger/wbx/web/ViewServlet.java | ●●●●● patch | view | raw | blame | history | |
src/de/uhilger/wbx/web/WbxServlet.java | ●●●●● patch | view | raw | blame | history |
src/de/uhilger/wbx/web/CustomResponseWrapper.java
New file @@ -0,0 +1,70 @@ /* WebBox - Dein Server. Copyright (C) 2017 Ulrich Hilger, http://uhilger.de This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program 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 Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ package de.uhilger.wbx.web; import java.io.IOException; import java.io.PrintWriter; import java.io.StringWriter; import javax.servlet.ServletOutputStream; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpServletResponseWrapper; /** * Die Klasse CustomResponseWrapper faengt den Inhalt einer HttpServletResponse * in einem StringWriter auf. Dieser kann mit der Methode getResponseContent * gelesen werden. * * @author ulrich */ public class CustomResponseWrapper extends HttpServletResponseWrapper { private StringWriter stringWriter; private boolean isOutputStreamCalled; public CustomResponseWrapper(HttpServletResponse response) { super(response); } @Override public ServletOutputStream getOutputStream() throws IOException { if (this.stringWriter != null) { throw new IllegalStateException("The getWriter() is already called."); } isOutputStreamCalled = true; return super.getOutputStream(); } @Override public PrintWriter getWriter() throws IOException { if (isOutputStreamCalled) { throw new IllegalStateException("The getOutputStream() is already called."); } this.stringWriter = new StringWriter(); return new PrintWriter(this.stringWriter); } public String getResponseContent() { if (this.stringWriter != null) { return this.stringWriter.toString(); } return ""; } } src/de/uhilger/wbx/web/MarkdownServlet.java
@@ -19,8 +19,10 @@ import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.ServletOutputStream; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.markdownj.MarkdownProcessor; /** * @@ -29,37 +31,15 @@ public class MarkdownServlet extends WbxServlet { /** * 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); } } private void seiteAusgeben(HttpServletRequest request, HttpServletResponse response) { protected void seiteAusgeben(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { CustomResponseWrapper wrapper = new CustomResponseWrapper(response); super.doGet(request, wrapper); String responseContent = wrapper.getResponseContent(); ServletOutputStream out = response.getOutputStream(); MarkdownProcessor p = new MarkdownProcessor(); out.print(p.markdown(responseContent)); } } src/de/uhilger/wbx/web/ViewServlet.java
@@ -38,36 +38,7 @@ private static final Logger logger = Logger.getLogger(ViewServlet.class.getName()); //private static final String HOME_CTX = "/home"; /** * 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); } } private void seiteAusgeben(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { protected void seiteAusgeben(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { ServletOutputStream out = response.getOutputStream(); printHeader(out); super.doGet(request, response); src/de/uhilger/wbx/web/WbxServlet.java
@@ -9,20 +9,60 @@ import java.security.Principal; import java.util.logging.Level; import java.util.logging.Logger; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.catalina.servlets.DefaultServlet; /** * * Das WbxServlet prueft fuer alle HTTP GET Anfragen den Conetxt Path. Wenn * er /home enthaelt, muss der angemeldete Benutzer mit dem Benutzernamen * im Pfad uebereinstimmen. Stimmt er nicht ueberein oder ist kein Nutzer * angemeldet, wird ein Fehler ausgegeben. * * Alle anderen Pfade als /home werden ohne Anmeldung ausgegeben. * * Die Ausgabe des Inhalts wird auf die abstrakte Methode seiteAusgeben * umgeleitet. Serlvets, die von WbxServlet abgeleitet werden, koennen * die Methode seiteAusgeben so implementieren, dass sie z.B. den * Inhalt der Ausgabe nach Wunsch veraendern. * * @author ulrich */ public class WbxServlet extends DefaultServlet { public abstract class WbxServlet extends DefaultServlet { protected static final Logger logger = Logger.getLogger(WbxServlet.class.getName()); protected static final String HOME_CTX = "/home"; /** * 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) throws IOException { protected String getUrlUser(HttpServletRequest request, String userName) { String result = ""; String requestUrlStr = request.getRequestURL().toString(); String contextPath = request.getContextPath(); @@ -48,5 +88,7 @@ } return userName; } protected abstract void seiteAusgeben(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException; }