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| | | package de.uhilger.wbx.web;
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| | | import java.io.IOException;
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| | | import java.io.OutputStream;
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| | | import java.security.Principal;
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| | | import java.util.logging.Logger;
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| | | import javax.servlet.ServletException;
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| | | import javax.servlet.ServletOutputStream;
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| | | import javax.servlet.http.HttpServletRequest;
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| | | import javax.servlet.http.HttpServletResponse;
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| | | import org.apache.catalina.servlets.DefaultServlet;
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| | | /**
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| | | *
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| | | */
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| | | public class ViewServlet extends DefaultServlet {
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| | | private static final Logger logger = Logger.getLogger(ViewServlet.class.getName());
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| | | /**
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| | | * Handles the HTTP <code>GET</code> method.
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| | | *
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| | | * @param request servlet request
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| | | * @param response servlet response
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| | | * @throws ServletException if a servlet-specific error occurs
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| | | * @throws IOException if an I/O error occurs
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| | | */
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| | | @Override
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| | | protected void doGet(HttpServletRequest request, HttpServletResponse response)
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| | | throws ServletException, IOException {
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| | | /*
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| | | ServletOutputStream out = response.getOutputStream();
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| | | out.print("<!DOCTYPE html><html><head><title>Testausgabe</title></head><body>");
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| | | super.doGet(request, response);
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| | | out.print("</body></html>"); |
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| | | */
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| | | String userName = getUserName(request);
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| | | String requestURLStr = request.getRequestURL().toString();
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| | | String contextPath = request.getContextPath();
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| | | ServletOutputStream out = response.getOutputStream();
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| | | out.print("<!DOCTYPE html><html><head><title>Testausgabe</title></head><body>");
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| | | out.print(getHtml("userName", userName)); |
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| | | out.print(getHtml("contextPath", contextPath)); |
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| | | out.print(getHtml("requestURL", requestURLStr)); |
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| | | out.print(getHtml("urlUser", getUrlUser(out, requestURLStr, contextPath, userName))); |
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| | | out.print("</body></html>");
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| | | }
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| | | private String getUrlUser(ServletOutputStream out, String requestUrlStr, String contextPath, String userName) throws IOException {
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| | | String result = "urlUser nicht ermittelbar";
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| | | if(contextPath != null && requestUrlStr != null && userName != null) {
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| | | int start = requestUrlStr.indexOf(contextPath);
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| | | out.print("<p>start: " + start + "</p>");
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| | | out.print("<p>userName.length: " + userName.length() + "</p>");
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| | | out.print("<p>contextPath.length(): " + contextPath.length() + "</p>");
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| | | out.print("<p>requestUrlStr.length(): " + requestUrlStr.length() + "</p>");
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| | | start += contextPath.length();
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| | | start++;
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| | | out.print("<p>start: " + start + "</p>");
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| | | int end = start + userName.length();
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| | | try {
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| | | result = requestUrlStr.substring(start, end);
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| | | } catch(Exception ex) {
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| | | result = ex.getMessage();
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| | | }
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| | | }
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| | | return result;
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| | | }
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| | | private String getHtml(String label, String theVal) {
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| | | StringBuffer buf = new StringBuffer();
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| | | buf.append("<p>");
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| | | buf.append(label);
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| | | buf.append(": ");
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| | | if(theVal == null) {
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| | | buf.append("null");
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| | | } else {
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| | | buf.append(theVal);
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| | | }
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| | | buf.append("</p>");
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| | | return buf.toString();
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| | | }
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| | | private String getUserName(HttpServletRequest hr) {
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| | | String userName = null;
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| | | Object p = hr.getUserPrincipal();
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| | | if (p instanceof Principal) {
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| | | userName = ((Principal) p).getName();
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| | | }
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| | | return userName;
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| | | }
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| | |
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| | | /**
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| | | * Returns a short description of the servlet.
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| | | *
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| | | * @return a String containing servlet description
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| | | */
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| | | @Override
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| | | public String getServletInfo() {
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| | | return "Short description";
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| | | }// </editor-fold>
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| | | }
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