Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/server/GGInAFilter.java @ 3692:d18e6811e924
Refactor UserServiceImpl getCurrentUser method
Return the logged in user in getCurrentUser method.
flys-client/trunk@5378 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Bjoern Ricks <bjoern.ricks@intevation.de> |
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date | Fri, 07 Sep 2012 11:58:11 +0000 |
parents | 71ba3cf3ec5e |
children | a4c9296f6efa |
rev | line source |
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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.util.Enumeration; |
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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.ServletContext; |
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10 import javax.servlet.ServletException; |
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11 import javax.servlet.ServletRequest; |
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12 import javax.servlet.ServletResponse; |
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13 |
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14 import javax.servlet.http.HttpServletRequest; |
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15 import javax.servlet.http.HttpServletResponse; |
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16 import javax.servlet.http.HttpSession; |
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17 |
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18 import org.apache.log4j.Logger; |
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19 |
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20 import de.intevation.flys.client.server.auth.Authentication; |
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21 import de.intevation.flys.client.server.auth.AuthenticationException; |
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22 import de.intevation.flys.client.server.auth.AuthenticationFactory; |
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23 import de.intevation.flys.client.server.auth.User; |
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24 import de.intevation.flys.client.server.features.Features; |
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25 |
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26 |
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27 /** ServletFilter used for GGInA authentification and certain authorisation. */ |
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28 public class GGInAFilter implements Filter { |
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29 |
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30 /** Private logger. */ |
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31 private static Logger logger = Logger.getLogger(GGInAFilter.class); |
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32 |
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33 private boolean deactivate = false; |
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34 private String authmethod; |
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35 private ServletContext sc; |
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36 |
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37 |
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38 /** |
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39 * Initialize. |
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40 * |
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41 * Read FilterConfig parameter deactivate |
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42 */ |
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43 @Override |
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44 public void init(FilterConfig config) |
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45 throws ServletException |
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46 { |
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47 String deactivate = config.getInitParameter("deactivate"); |
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48 this.sc = config.getServletContext(); |
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49 this.authmethod = sc.getInitParameter("authentication"); |
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50 if (deactivate != null && deactivate.equalsIgnoreCase("true")) { |
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51 this.deactivate = true; |
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52 } |
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53 |
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54 } |
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55 |
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56 |
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57 /** |
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58 * Called when filter in chain invoked. |
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59 * @param req request to servlet |
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60 * @param resp response of servlet |
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61 * @param chain the filter chain |
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62 */ |
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63 @Override |
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64 public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) |
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65 throws IOException, ServletException |
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66 { |
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67 if (this.deactivate) { |
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68 logger.debug("GGinAFilter is deactivated"); |
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69 chain.doFilter(req, resp); |
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70 return; |
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71 } |
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72 |
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73 HttpServletRequest sreq = (HttpServletRequest) req; |
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74 |
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75 String requesturi = sreq.getRequestURI(); |
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76 for (Enumeration e = req.getAttributeNames() ; e.hasMoreElements() ;) { |
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77 logger.debug(e.nextElement()); |
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78 } |
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79 |
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80 logger.debug("Request for: " + requesturi); |
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81 |
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82 // Allow access to login pages |
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83 // TODO Maybe replace with Filter <url-pattern> |
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84 if (requesturi.equals("/login.jsp") || requesturi.equals("/flys/login") |
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85 || requesturi.equals("/FLYS.css")) { |
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86 logger.debug("Request for login " + requesturi); |
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87 chain.doFilter(req, resp); |
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88 return; |
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89 } |
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90 |
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91 HttpSession session = sreq.getSession(); |
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92 |
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93 String uri = requesturi; |
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94 if (sreq.getQueryString() != null) { |
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95 uri = uri + "?" + sreq.getQueryString(); |
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96 } |
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97 session.setAttribute("requesturi", uri); |
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98 |
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99 User user = (User)session.getAttribute("user"); |
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100 if (user == null) { |
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101 logger.debug("No user in session: " + requesturi); |
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102 this.redirect(resp); |
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103 return; |
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104 } |
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105 if (user.hasExpired()) { |
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106 // try to re-authenticate the user |
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107 logger.debug("User ticket has expired: " + requesturi); |
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108 String encoding = sreq.getCharacterEncoding(); |
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109 try { |
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110 Authentication auth = this.auth(user, encoding); |
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111 if (auth == null || !auth.isSuccess()) { |
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112 logger.debug("Re-athentication not successful"); |
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113 this.redirect(resp); |
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114 } |
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115 } |
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116 catch(AuthenticationException e) { |
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117 logger.error("Failure during re-authentication", e); |
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118 this.redirect(resp); |
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119 return; |
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120 } |
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121 } |
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122 |
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123 logger.debug("GGInAFilter.doFilter"); |
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124 chain.doFilter(req, resp); |
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125 return; |
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126 } |
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127 |
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128 private void redirect(ServletResponse resp) throws IOException { |
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129 logger.debug("Redirect to login"); |
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130 ((HttpServletResponse) resp).sendRedirect("/login.jsp"); |
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131 } |
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132 |
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133 |
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134 /** |
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135 * Do nothing at destruction. |
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136 */ |
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137 @Override |
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138 public void destroy() { |
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139 } |
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140 |
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141 private Authentication auth(User user, String encoding) |
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142 throws AuthenticationException, IOException { |
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143 Features features = (Features)sc.getAttribute(Features.CONTEXT_ATTRIBUTE); |
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144 return AuthenticationFactory.getInstance(this.authmethod).auth( |
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145 user.getName(), user.getPassword(), encoding, features); |
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146 } |
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147 } |
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148 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |