Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/server/AuthenticationServlet.java @ 9726:0a5239a1e46e 3.2.x

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Upgrade to Log4j 2
author Tom Gottfried <tom@intevation.de>
date Wed, 02 Mar 2022 10:26:50 +0100
parents 5e38e2924c07
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rev   line source
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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.logging.log4j.Logger;
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20 import org.apache.logging.log4j.LogManager;
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21
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22 import org.dive4elements.river.client.server.auth.User;
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23 import org.dive4elements.river.client.server.auth.UserClient;
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24
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25 /**
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26 * Base class for servlets performing authentication and login.
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27 */
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28 public class AuthenticationServlet extends HttpServlet {
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29
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30 private static Logger log = LogManager.getLogger(AuthenticationServlet.class);
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31
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32 private static final String FLYS_PAGE = "FLYS.html";
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33 private static final String LOGIN_PAGE = "login.jsp";
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34
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35 protected void redirectFailure(HttpServletResponse resp, String path)
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36 throws IOException {
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37 resp.sendRedirect(path + "/" + LOGIN_PAGE);
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38 }
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39
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40 protected void redirectFailure(HttpServletResponse resp, String path,
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41 Exception e) throws IOException {
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42 this.redirectFailure(resp, path, e.getMessage());
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43 }
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44
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45 protected void redirectFailure(HttpServletResponse resp, String path,
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46 String message) throws IOException {
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47 resp.sendRedirect(path + "/" + LOGIN_PAGE + "?error=" + message);
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48 }
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49
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50 protected void redirectSuccess(HttpServletResponse resp, String path,
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51 String uri) throws IOException {
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52 if (uri == null) {
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53 String redirecturl = getServletContext().getInitParameter(
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54 "redirect-url");
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55 if (redirecturl == null) {
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56 redirecturl = FLYS_PAGE;
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57 }
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58 uri = "/" + redirecturl;
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59 }
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60 resp.sendRedirect(uri);
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61 }
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62
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63 @Override
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64 protected void doGet(HttpServletRequest req, HttpServletResponse resp)
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65 throws ServletException, IOException {
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66 log.debug("Processing get request");
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67 this.redirectFailure(resp, req.getContextPath());
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68 }
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69
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70 protected void performLogin(HttpServletRequest req,
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71 HttpServletResponse resp, User user)
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72 throws ServletException, IOException {
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73 String url = getServletContext().getInitParameter("server-url");
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74 UserClient client = new UserClient(url);
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75 if (!client.userExists(user)) {
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76 log.debug("Creating db user");
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77 if (!client.createUser(user)) {
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78 this.redirectFailure(resp, req.getContextPath(),
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79 "Could not create new user");
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80 return;
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81 }
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82 }
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83
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84 HttpSession session = req.getSession();
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85 session.setAttribute("user", user);
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86
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87 String uri = (String)session.getAttribute("requesturi");
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88
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89 this.redirectSuccess(resp, req.getContextPath(), uri);
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90 }
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91 }
http://dive4elements.wald.intevation.org