Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/server/auth/plain/Authenticator.java @ 2959:5ba0a6efdf3b
Auth: added simple file based authentication.
flys-client/trunk@4939 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Wed, 11 Jul 2012 14:53:33 +0000 |
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children | 98514ab2c9ba |
rev | line source |
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Auth: added simple file based authentication.
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1 package de.intevation.flys.client.server.auth.plain; |
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2 |
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3 import de.intevation.flys.client.server.auth.AuthenticationException; |
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4 import de.intevation.flys.client.server.auth.DefaultUser; |
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5 import de.intevation.flys.client.server.auth.User; |
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6 |
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7 import java.io.BufferedReader; |
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8 import java.io.File; |
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9 import java.io.FileReader; |
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10 import java.io.IOException; |
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11 |
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12 public class Authenticator |
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13 implements de.intevation.flys.client.server.auth.Authenticator |
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14 { |
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15 public static class Authentication |
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16 implements de.intevation.flys.client.server.auth.Authentication |
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17 { |
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18 protected String user; |
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19 protected String password; |
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20 |
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21 public Authentication(String user, String password) { |
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22 this.user = user; |
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23 this.password = password; |
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24 } |
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25 |
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26 @Override |
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27 public boolean isSuccess() { |
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28 return user != null; |
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29 } |
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30 |
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31 @Override |
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32 public User getUser() { |
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33 return isSuccess() |
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34 ? new DefaultUser(user, password, false) |
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35 : null; |
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36 } |
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37 } // class Authentication |
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38 |
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39 public Authenticator() { |
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40 } |
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41 |
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42 private static File credentialsFile() { |
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43 String env = System.getenv("FLYS_USER_FILE"); |
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44 if (env == null) { |
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45 env = System.getProperty( |
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46 "flys.user.file", |
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47 System.getProperty("user.home", ".") |
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48 + System.getProperty("file.separator") |
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49 + "flys_user_file"); |
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50 } |
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51 return new File(env); |
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52 |
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53 } |
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54 |
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55 @Override |
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56 public de.intevation.flys.client.server.auth.Authentication auth( |
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57 String username, |
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58 String password, |
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59 String encoding |
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60 ) |
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61 throws AuthenticationException, IOException |
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62 { |
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63 File file = credentialsFile(); |
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64 if (!file.canRead() || !file.isFile()) { |
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65 return new Authentication(null, null); |
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66 } |
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67 |
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68 BufferedReader reader = |
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69 new BufferedReader( |
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70 new FileReader(file)); |
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71 try { |
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72 String line; |
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73 while ((line = reader.readLine()) != null) { |
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74 if ((line = line.trim()).length() == 0 |
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75 || line.startsWith("#")) { |
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76 continue; |
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77 } |
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78 String [] parts = line.split("\\s+"); |
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79 // TODO: role? |
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80 if (parts.length < 2) { |
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81 continue; |
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82 } |
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83 if (parts[0].equals(username)) { |
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84 if (parts[1].equals(password)) { |
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85 return new Authentication(username, password); |
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86 } |
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87 // Stop: user found, wrong password |
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88 break; |
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89 } |
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90 } |
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91 } |
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92 finally { |
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93 reader.close(); |
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94 } |
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95 return new Authentication(null, null); |
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96 } |
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97 } |
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98 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |