wbx-lib.git - Ulrich Hilger Code Repository

			@@ -1,23 +1,93 @@
			/*
			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.security.Principal;
			import java.util.logging.Level;
			import java.util.logging.Logger;
			import javax.naming.Context;
			import javax.naming.InitialContext;
			import javax.naming.NamingException;
			import javax.servlet.ServletException;
			import javax.servlet.ServletOutputStream;
			import javax.servlet.http.HttpServlet;
			import javax.servlet.http.HttpServletRequest;
			import javax.servlet.http.HttpServletResponse;
			import org.apache.catalina.servlets.DefaultServlet;

			/**
			*
			* Das ViewServlet fügt dem DefaultServlet von Tomcat
			* Methoden hinzu, mit denen HTML-Inhalte wie sie z.B. mit
			* TinyMCE erzeugt werden zu ganzen HTML-Seiten
			* mit head und body tags sowie Stylesheet-Verweisen
			* ergänzt werden
			*
			* TODO: Stylesheets dynamisch einbinden
			*/
			public class ViewServlet extends DefaultServlet {
			public class ViewServlet extends HttpServlet {

			private static final Logger logger = Logger.getLogger(ViewServlet.class.getName());
			private static final String HOME_CTX = "/home";

			private String getTitle() {
			String title = null;
			try {
			Object object = ((Context) new InitialContext().lookup("java:comp/env")).lookup("webBoxViewTitle");
			if(object != null) {
			title = object.toString();
			logger.finer("WebBox View Titel: " + title);
			}
			} catch (NamingException ex) {
			logger.log(Level.SEVERE, null, ex);
			}
			return title;
			}

			private void seiteAusgeben(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
			ServletOutputStream out = response.getOutputStream();
			printHeader(out, request);
			super.doGet(request, response);
			printFooter(out);
			}

			private void printHeader(ServletOutputStream out, HttpServletRequest request) throws IOException {
			out.print("<!DOCTYPE html><html><head>\r\n");
			out.print("<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"/>\r\n");
			out.print("<link rel=\"stylesheet\" type=\"text/css\" href=\"/jslib/bootstrap/css/bootstrap.min.css\">\r\n");
			out.print("<link rel=\"stylesheet\" type=\"text/css\" href=\"/jslib/lightbox/lightbox.css\">\r\n");
			out.print("<link rel=\"stylesheet\" type=\"text/css\" href=\"stile.css\">\r\n");
			String title = getTitle();
			if(title != null) {
			out.print("<title>");
			out.print(title);
			out.print(" ");
			out.print(request.getRequestURI());
			out.print("</title>\r\n");
			}
			out.print("</head><body class=\"p-3\">\r\n");
			}

			private void printFooter(ServletOutputStream out) throws IOException {
			out.print("<script src=\"/jslib/jquery/jquery.min.js\"></script>\r\n");
			out.print("<script src=\"/jslib/lightbox/lightbox.min.js\"></script>\r\n");
			out.print("</body></html>");
			}

			/**
			* Handles the HTTP <code>GET</code> method.
			*
			@@ -27,8 +97,7 @@
			* @throws IOException if an I/O error occurs
			*/
			@Override
			protected void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
			protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
			String contextPath = request.getContextPath();
			if(HOME_CTX.equals(contextPath)) {
			String userName = getUserName(request);
			@@ -47,24 +116,7 @@
			}
			}

			private void seiteAusgeben(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
			ServletOutputStream out = response.getOutputStream();
			printHeader(out);
			super.doGet(request, response);
			printFooter(out);
			}

			private void printHeader(ServletOutputStream out) throws IOException {
			out.print("<!DOCTYPE html><html><head>");
			out.print("<link rel=\"stylesheet\" type=\"text/css\" href=\"/jslib/bootstrap/css/bootstrap.min.css\">");
			out.print("</head><body>");
			}

			private void printFooter(ServletOutputStream out) throws IOException {
			out.print("</body></html>");
			}

			private 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();
			@@ -82,7 +134,7 @@
			return result;
			}

			private String getUserName(HttpServletRequest hr) {
			protected String getUserName(HttpServletRequest hr) {
			String userName = null;
			Object p = hr.getUserPrincipal();
			if (p instanceof Principal) {
			@@ -90,7 +142,7 @@
			}
			return userName;
			}


			/**
			* Returns a short description of the servlet.
			*