Mercurial > dive4elements > river
annotate gwt-client/src/main/java/org/dive4elements/river/client/server/AuthenticationServlet.java @ 9709:b74f817435fe
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author | dnt_bjoernsen <d.tironi@bjoernsen.de> |
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date | Wed, 27 Jan 2021 11:47:38 +0100 |
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
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2 * Software engineering by Intevation GmbH |
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3 * |
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4 * This file is Free Software under the GNU AGPL (>=v3) |
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the |
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6 * documentation coming with Dive4Elements River for details. |
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7 */ |
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8 |
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9 package org.dive4elements.river.client.server; |
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10 |
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11 import java.io.IOException; |
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12 |
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13 import javax.servlet.ServletException; |
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14 import javax.servlet.http.HttpServlet; |
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15 import javax.servlet.http.HttpServletRequest; |
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16 import javax.servlet.http.HttpServletResponse; |
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17 import javax.servlet.http.HttpSession; |
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18 |
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19 import org.apache.log4j.Logger; |
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20 |
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21 import org.dive4elements.river.client.server.auth.User; |
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22 import org.dive4elements.river.client.server.auth.UserClient; |
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23 |
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24 /** |
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25 * Base class for servlets performing authentication and login. |
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26 */ |
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27 public class AuthenticationServlet extends HttpServlet { |
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28 |
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29 private static Logger log = Logger.getLogger(AuthenticationServlet.class); |
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30 |
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31 private static final String FLYS_PAGE = "FLYS.html"; |
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32 private static final String LOGIN_PAGE = "login.jsp"; |
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33 |
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34 protected void redirectFailure(HttpServletResponse resp, String path) |
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35 throws IOException { |
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36 resp.sendRedirect(path + "/" + LOGIN_PAGE); |
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37 } |
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38 |
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39 protected void redirectFailure(HttpServletResponse resp, String path, |
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40 Exception e) throws IOException { |
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41 this.redirectFailure(resp, path, e.getMessage()); |
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42 } |
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43 |
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44 protected void redirectFailure(HttpServletResponse resp, String path, |
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45 String message) throws IOException { |
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46 resp.sendRedirect(path + "/" + LOGIN_PAGE + "?error=" + message); |
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47 } |
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48 |
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49 protected void redirectSuccess(HttpServletResponse resp, String path, |
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50 String uri) throws IOException { |
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51 if (uri == null) { |
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53 "redirect-url"); | |
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54 if (redirecturl == null) { |
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55 redirecturl = FLYS_PAGE; |
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56 } |
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57 uri = "/" + redirecturl; |
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58 } |
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59 resp.sendRedirect(uri); |
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60 } |
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61 |
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62 @Override |
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63 protected void doGet(HttpServletRequest req, HttpServletResponse resp) |
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64 throws ServletException, IOException { |
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65 log.debug("Processing get request"); |
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66 this.redirectFailure(resp, req.getContextPath()); |
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67 } |
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68 |
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69 protected void performLogin(HttpServletRequest req, |
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70 HttpServletResponse resp, User user) |
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71 throws ServletException, IOException { |
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72 String url = getServletContext().getInitParameter("server-url"); |
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73 UserClient client = new UserClient(url); |
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74 if (!client.userExists(user)) { |
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75 log.debug("Creating db user"); |
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76 if (!client.createUser(user)) { |
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77 this.redirectFailure(resp, req.getContextPath(), |
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78 "Could not create new user"); |
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79 return; |
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80 } |
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81 } |
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82 |
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83 HttpSession session = req.getSession(); |
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84 session.setAttribute("user", user); |
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85 |
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86 String uri = (String)session.getAttribute("requesturi"); |
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87 |
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88 this.redirectSuccess(resp, req.getContextPath(), uri); |
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89 } |
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90 } |