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annotate flys-client/src/main/java/de/intevation/flys/client/server/LoginServlet.java @ 2956:d7f76f197d89

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Refactor GGInA authentication Move authentication related classes to de.intevation.fly.client.server.auth package. Abstract the authentication classes to allow other authentications beside WAS/GGInA. flys-client/trunk@4936 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Bjoern Ricks <bjoern.ricks@intevation.de>
date Wed, 11 Jul 2012 13:31:56 +0000
parents 192eddbbd4cf
children 16c71457ed43
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
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5 import javax.servlet.ServletException;
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6 import javax.servlet.http.HttpServlet;
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7 import javax.servlet.http.HttpServletRequest;
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8 import javax.servlet.http.HttpServletResponse;
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9 import javax.servlet.http.HttpSession;
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10
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11 import org.apache.log4j.Logger;
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12
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13 import de.intevation.flys.client.server.auth.Authentication;
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14 import de.intevation.flys.client.server.auth.AuthenticationException;
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15 import de.intevation.flys.client.server.auth.AuthenticationFactory;
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16 import de.intevation.flys.client.server.auth.User;
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17
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18 public class LoginServlet extends HttpServlet {
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19
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20 private static Logger logger = Logger.getLogger(LoginServlet.class);
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21
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22 private void redirectFailure(HttpServletResponse resp) throws IOException {
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23 resp.sendRedirect("/login.jsp");
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24 }
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25
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26 private void redirectSuccess(HttpServletResponse resp, String uri) throws IOException {
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27 if (uri == null) {
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28 uri = "/FLYS.html";
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29 }
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30 resp.sendRedirect(uri);
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31 }
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32
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33 @Override
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34 protected void doGet(HttpServletRequest req, HttpServletResponse resp)
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35 throws ServletException, IOException {
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36 logger.debug("Processing get request");
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37 this.redirectFailure(resp);
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38 }
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39
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40 @Override
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41 protected void doPost(HttpServletRequest req, HttpServletResponse resp)
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42 throws ServletException, IOException {
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43 String encoding = req.getCharacterEncoding();
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44 String username = req.getParameter("username");
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45 String password = req.getParameter("password");
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46
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47 logger.debug("Processing post request");
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48
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49 if (username == null || password == null) {
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50 logger.debug("No username or password provided");
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51 this.redirectFailure(resp);
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52 }
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53 try {
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54 Authentication aresp = this.auth(username, password, encoding);
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55 if (aresp == null || !aresp.isSuccess()) {
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56 logger.debug("Athentication not successful");
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57 this.redirectFailure(resp);
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58 }
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59 HttpSession session = req.getSession();
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60 User user = aresp.getUser();
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61 session.setAttribute("user", user);
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62
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63 String uri = (String)session.getAttribute("requesturi");
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64
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65 this.redirectSuccess(resp, uri);
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66 }
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67 catch(AuthenticationException e) {
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68 //TODO User could not be authenticated
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69 throw new ServletException(e);
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70 }
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71 }
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72
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73 private Authentication auth(String username, String password, String encoding)
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74 throws AuthenticationException, IOException {
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75 String auth = this.getInitParameter("authentication");
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76 return AuthenticationFactory.getInstance(auth).auth(username, password, encoding);
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77 }
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78 }
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