Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/GGInAFilter.java @ 2952:3cacd42a0336

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Filter all requests to FLYS If a user is not authenticated redirect him to the login.jsp. The GGinAFilter can be deactivated via the web.xml file. flys-client/trunk@4931 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Bjoern Ricks <bjoern.ricks@intevation.de>
date Wed, 11 Jul 2012 10:57:24 +0000
parents 6e4e4b96ca6c
children f1030909eeb6
rev   line source
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6c613c9f3a51 Stub for A&A Servlet Filter.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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1 package de.intevation.flys.client.server;
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2
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3 import java.io.IOException;
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4 import java.io.InputStream;
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5
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6 import javax.servlet.Filter;
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7 import javax.servlet.FilterChain;
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8 import javax.servlet.FilterConfig;
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9 import javax.servlet.ServletException;
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10 import javax.servlet.ServletRequest;
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11 import javax.servlet.ServletResponse;
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6e4e4b96ca6c Removed superfluous imports.
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12
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13 import javax.servlet.http.HttpServletRequest;
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14 import javax.servlet.http.HttpServletResponse;
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15 import javax.servlet.http.HttpSession;
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16
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17 import org.apache.log4j.Logger;
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18
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19 import de.intevation.flys.client.server.was.User;
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20
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21
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22 /** ServletFilter used for GGInA authentification and certain authorisation. */
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23 public class GGInAFilter implements Filter {
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24
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25 /** Private logger. */
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26 private static Logger logger = Logger.getLogger(GGInAFilter.class);
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27
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28 private boolean deactivate = false;
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29
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30
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31 /**
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32 * Initialize.
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33 *
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34 * Read FilterConfig parameter deactivate
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35 */
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36 @Override
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37 public void init(FilterConfig config)
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38 throws ServletException
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39 {
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40 String deactivate = config.getInitParameter("deactivate");
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41 if (deactivate != null && deactivate.equals("1")) {
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42 this.deactivate = true;
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43 }
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44
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45 }
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46
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47
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48 /**
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49 * Called when filter in chain invoked.
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50 * @param req request to servlet
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51 * @param resp response of servlet
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52 * @param chain the filter chain
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53 */
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54 @Override
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55 public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain)
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56 throws IOException, ServletException
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57 {
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58 if (this.deactivate) {
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59 logger.debug("GGinAFilter is deactivated");
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60 chain.doFilter(req, resp);
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61 return;
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62 }
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63
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64 HttpServletRequest sreq = (HttpServletRequest) req;
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65
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66 String requesturi = sreq.getRequestURI();
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67
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68 logger.debug("Request for: " + requesturi);
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69
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70 // Allow access to login pages
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71 // TODO Maybe replace with Filter <url-pattern>
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72 if (requesturi.equals("/login.jsp") || requesturi.equals("/flys/login")
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73 || requesturi.equals("/FLYS.css")) {
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74 logger.debug("Request for login " + requesturi);
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75 chain.doFilter(req, resp);
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76 return;
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77 }
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78
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79 HttpSession session = sreq.getSession();
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80
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81 String uri = requesturi;
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82 if (sreq.getQueryString() != null) {
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83 uri = uri + "?" + sreq.getQueryString();
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84 }
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85 session.setAttribute("requesturi", uri);
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86
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87 User user = (User)session.getAttribute("user");
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88 if (user == null) {
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89 logger.debug("No user in session: " + requesturi);
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90 this.redirect(resp);
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91 return;
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92 }
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93 if (user.hasExpired()) {
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94 logger.debug("User ticket has expired: " + requesturi);
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95 this.redirect(resp);
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96 return;
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97 }
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98
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99 logger.debug("GGInAFilter.doFilter");
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100 chain.doFilter(req, resp);
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101 return;
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102 }
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103
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104 private void redirect(ServletResponse resp) throws IOException {
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105 logger.debug("Redirect to login");
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106 ((HttpServletResponse) resp).sendRedirect("/login.jsp");
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107 }
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108
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109
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110 /**
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111 * Do nothing at destruction.
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112 */
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113 @Override
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114 public void destroy() {
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115 }
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116 }
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117 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org