Mercurial > dive4elements > river
comparison 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> |
|---|---|
| date | Wed, 11 Jul 2012 14:53:33 +0000 |
| parents | |
| children | 98514ab2c9ba |
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| 2958:973d4a968f6a | 2959:5ba0a6efdf3b |
|---|---|
| 1 package de.intevation.flys.client.server.auth.plain; | |
| 2 | |
| 3 import de.intevation.flys.client.server.auth.AuthenticationException; | |
| 4 import de.intevation.flys.client.server.auth.DefaultUser; | |
| 5 import de.intevation.flys.client.server.auth.User; | |
| 6 | |
| 7 import java.io.BufferedReader; | |
| 8 import java.io.File; | |
| 9 import java.io.FileReader; | |
| 10 import java.io.IOException; | |
| 11 | |
| 12 public class Authenticator | |
| 13 implements de.intevation.flys.client.server.auth.Authenticator | |
| 14 { | |
| 15 public static class Authentication | |
| 16 implements de.intevation.flys.client.server.auth.Authentication | |
| 17 { | |
| 18 protected String user; | |
| 19 protected String password; | |
| 20 | |
| 21 public Authentication(String user, String password) { | |
| 22 this.user = user; | |
| 23 this.password = password; | |
| 24 } | |
| 25 | |
| 26 @Override | |
| 27 public boolean isSuccess() { | |
| 28 return user != null; | |
| 29 } | |
| 30 | |
| 31 @Override | |
| 32 public User getUser() { | |
| 33 return isSuccess() | |
| 34 ? new DefaultUser(user, password, false) | |
| 35 : null; | |
| 36 } | |
| 37 } // class Authentication | |
| 38 | |
| 39 public Authenticator() { | |
| 40 } | |
| 41 | |
| 42 private static File credentialsFile() { | |
| 43 String env = System.getenv("FLYS_USER_FILE"); | |
| 44 if (env == null) { | |
| 45 env = System.getProperty( | |
| 46 "flys.user.file", | |
| 47 System.getProperty("user.home", ".") | |
| 48 + System.getProperty("file.separator") | |
| 49 + "flys_user_file"); | |
| 50 } | |
| 51 return new File(env); | |
| 52 | |
| 53 } | |
| 54 | |
| 55 @Override | |
| 56 public de.intevation.flys.client.server.auth.Authentication auth( | |
| 57 String username, | |
| 58 String password, | |
| 59 String encoding | |
| 60 ) | |
| 61 throws AuthenticationException, IOException | |
| 62 { | |
| 63 File file = credentialsFile(); | |
| 64 if (!file.canRead() || !file.isFile()) { | |
| 65 return new Authentication(null, null); | |
| 66 } | |
| 67 | |
| 68 BufferedReader reader = | |
| 69 new BufferedReader( | |
| 70 new FileReader(file)); | |
| 71 try { | |
| 72 String line; | |
| 73 while ((line = reader.readLine()) != null) { | |
| 74 if ((line = line.trim()).length() == 0 | |
| 75 || line.startsWith("#")) { | |
| 76 continue; | |
| 77 } | |
| 78 String [] parts = line.split("\\s+"); | |
| 79 // TODO: role? | |
| 80 if (parts.length < 2) { | |
| 81 continue; | |
| 82 } | |
| 83 if (parts[0].equals(username)) { | |
| 84 if (parts[1].equals(password)) { | |
| 85 return new Authentication(username, password); | |
| 86 } | |
| 87 // Stop: user found, wrong password | |
| 88 break; | |
| 89 } | |
| 90 } | |
| 91 } | |
| 92 finally { | |
| 93 reader.close(); | |
| 94 } | |
| 95 return new Authentication(null, null); | |
| 96 } | |
| 97 } | |
| 98 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |