| commit | author | age | ||
| 22f5de | 1 | package de.uhilger.wbx.web; |
| U | 2 | |
| 3 | import java.io.IOException; | |
| 4 | import java.security.Principal; | |
| 2a7560 | 5 | import java.util.logging.Level; |
| 22f5de | 6 | import java.util.logging.Logger; |
| U | 7 | import javax.servlet.ServletException; |
| 8 | import javax.servlet.ServletOutputStream; | |
| 9 | import javax.servlet.http.HttpServletRequest; | |
| 10 | import javax.servlet.http.HttpServletResponse; | |
| 11 | import org.apache.catalina.servlets.DefaultServlet; | |
| 12 | ||
| 13 | /** | |
| 14 | * | |
| 15 | */ | |
| 16 | public class ViewServlet extends DefaultServlet { | |
| 17 | ||
| 18 | private static final Logger logger = Logger.getLogger(ViewServlet.class.getName()); | |
| 2a7560 | 19 | private static final String HOME_CTX = "/home"; |
| 22f5de | 20 | |
| U | 21 | /** |
| 22 | * Handles the HTTP <code>GET</code> method. | |
| 23 | * | |
| 24 | * @param request servlet request | |
| 25 | * @param response servlet response | |
| 26 | * @throws ServletException if a servlet-specific error occurs | |
| 27 | * @throws IOException if an I/O error occurs | |
| 28 | */ | |
| 29 | @Override | |
| 30 | protected void doGet(HttpServletRequest request, HttpServletResponse response) | |
| 31 | throws ServletException, IOException { | |
| 2a7560 | 32 | String contextPath = request.getContextPath(); |
| U | 33 | if(HOME_CTX.equals(contextPath)) { |
| 22f5de | 34 | String userName = getUserName(request); |
| 2a7560 | 35 | if (userName != null) { |
| U | 36 | String urlUser = getUrlUser(request, userName); |
| 37 | if(userName.equals(urlUser)) { | |
| 38 | seiteAusgeben(request, response); | |
| 39 | } else { | |
| 40 | logger.fine("Wrong user."); | |
| 41 | } | |
| 42 | } else { | |
| 43 | logger.fine("Missing login."); | |
| 44 | } | |
| 45 | } else { | |
| 46 | seiteAusgeben(request, response); | |
| 47 | } | |
| 22f5de | 48 | } |
| U | 49 | |
| 2a7560 | 50 | private void seiteAusgeben(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { |
| U | 51 | ServletOutputStream out = response.getOutputStream(); |
| 52 | printHeader(out); | |
| 53 | super.doGet(request, response); | |
| 54 | printFooter(out); | |
| 55 | } | |
| 56 | ||
| 57 | private void printHeader(ServletOutputStream out) throws IOException { | |
| 58 | out.print("<!DOCTYPE html><html><head>"); | |
| 59 | out.print("<link rel=\"stylesheet\" type=\"text/css\" href=\"/jslib/bootstrap/css/bootstrap.min.css\">"); | |
| 60 | out.print("</head><body>"); | |
| 61 | } | |
| 62 | ||
| 63 | private void printFooter(ServletOutputStream out) throws IOException { | |
| 64 | out.print("</body></html>"); | |
| 65 | } | |
| 66 | ||
| 67 | private String getUrlUser(HttpServletRequest request, String userName) throws IOException { | |
| 68 | String result = ""; | |
| 69 | String requestUrlStr = request.getRequestURL().toString(); | |
| 70 | String contextPath = request.getContextPath(); | |
| 22f5de | 71 | if(contextPath != null && requestUrlStr != null && userName != null) { |
| U | 72 | int start = requestUrlStr.indexOf(contextPath); |
| 73 | start += contextPath.length(); | |
| 74 | start++; | |
| 75 | int end = start + userName.length(); | |
| 76 | try { | |
| 77 | result = requestUrlStr.substring(start, end); | |
| 78 | } catch(Exception ex) { | |
| 2a7560 | 79 | logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex); |
| 22f5de | 80 | } |
| U | 81 | } |
| 82 | return result; | |
| 83 | } | |
| 84 | ||
| 85 | private String getUserName(HttpServletRequest hr) { | |
| 86 | String userName = null; | |
| 87 | Object p = hr.getUserPrincipal(); | |
| 88 | if (p instanceof Principal) { | |
| 89 | userName = ((Principal) p).getName(); | |
| 90 | } | |
| 91 | return userName; | |
| 92 | } | |
| 93 | ||
| 94 | /** | |
| 95 | * Returns a short description of the servlet. | |
| 96 | * | |
| 97 | * @return a String containing servlet description | |
| 98 | */ | |
| 99 | @Override | |
| 100 | public String getServletInfo() { | |
| 101 | return "Short description"; | |
| 2a7560 | 102 | } |
| 22f5de | 103 | |
| U | 104 | } |
