wbx-lib.git - Ulrich Hilger Code Repository

			@@ -1,8 +1,8 @@
			package de.uhilger.wbx.web;

			import java.io.IOException;
			import java.io.OutputStream;
			import java.security.Principal;
			import java.util.logging.Level;
			import java.util.logging.Logger;
			import javax.servlet.ServletException;
			import javax.servlet.ServletOutputStream;
			@@ -16,6 +16,7 @@
			public class ViewServlet extends DefaultServlet {

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

			/**
			* Handles the HTTP <code>GET</code> method.
			@@ -28,61 +29,59 @@
			@Override
			protected void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
			/*
			ServletOutputStream out = response.getOutputStream();
			out.print("<!DOCTYPE html><html><head><title>Testausgabe</title></head><body>");
			super.doGet(request, response);
			out.print("</body></html>");
			*/

			String contextPath = request.getContextPath();
			if(HOME_CTX.equals(contextPath)) {
			String userName = getUserName(request);
			String requestURLStr = request.getRequestURL().toString();
			String contextPath = request.getContextPath();

			ServletOutputStream out = response.getOutputStream();
			out.print("<!DOCTYPE html><html><head><title>Testausgabe</title></head><body>");
			out.print(getHtml("userName", userName));
			out.print(getHtml("contextPath", contextPath));
			out.print(getHtml("requestURL", requestURLStr));
			out.print(getHtml("urlUser", getUrlUser(out, requestURLStr, contextPath, userName)));
			out.print("</body></html>");
			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 String getUrlUser(ServletOutputStream out, String requestUrlStr, String contextPath, String userName) throws IOException {
			String result = "urlUser nicht ermittelbar";
			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 {
			String result = "";
			String requestUrlStr = request.getRequestURL().toString();
			String contextPath = request.getContextPath();
			if(contextPath != null && requestUrlStr != null && userName != null) {
			int start = requestUrlStr.indexOf(contextPath);
			out.print("<p>start: " + start + "</p>");
			out.print("<p>userName.length: " + userName.length() + "</p>");
			out.print("<p>contextPath.length(): " + contextPath.length() + "</p>");
			out.print("<p>requestUrlStr.length(): " + requestUrlStr.length() + "</p>");
			start += contextPath.length();
			start++;
			out.print("<p>start: " + start + "</p>");
			int end = start + userName.length();
			try {
			result = requestUrlStr.substring(start, end);
			} catch(Exception ex) {
			result = ex.getMessage();
			logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
			}
			}
			return result;
			}

			private String getHtml(String label, String theVal) {
			StringBuffer buf = new StringBuffer();
			buf.append("<p>");
			buf.append(label);
			buf.append(": ");
			if(theVal == null) {
			buf.append("null");
			} else {
			buf.append(theVal);
			}
			buf.append("</p>");
			return buf.toString();
			}

			private String getUserName(HttpServletRequest hr) {
			String userName = null;
			Object p = hr.getUserPrincipal();
			@@ -100,6 +99,6 @@
			@Override
			public String getServletInfo() {
			return "Short description";
			}// </editor-fold>
			}

			}