Mercurial > dive4elements > river

comparison flys-client/src/main/java/org/dive4elements/river/client/server/auth/plain/Authenticator.java @ 5834:f507086aa94b

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Repaired internal references.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 12:31:32 +0200
parents flys-client/src/main/java/de/intevation/flys/client/server/auth/plain/Authenticator.java@2e12518ff5b4
children 821a02bbfb4e
comparison
equal deleted inserted replaced
5833:a2bdc0f524e8 5834:f507086aa94b
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 import java.util.ArrayList;
13 import java.util.List;
14
15 import org.apache.log4j.Logger;
16
17 import de.intevation.flys.client.server.features.Features;
18
19 /**
20 * Authenticator that uses a local file as user backend.
21 */
22 public class Authenticator
23 implements de.intevation.flys.client.server.auth.Authenticator
24 {
25 private static final Logger log =
26 Logger.getLogger(Authenticator.class);
27
28 public static class Authentication
29 implements de.intevation.flys.client.server.auth.Authentication
30 {
31 protected String user;
32 protected String password;
33 protected List<String> roles;
34 protected Features features;
35
36 public Authentication(
37 String user,
38 String password,
39 List<String> roles,
40 Features features
41 ) {
42 this.user = user;
43 this.password = password;
44 this.roles = roles;
45 this.features = features;
46 }
47
48 @Override
49 public boolean isSuccess() {
50 return user != null;
51 }
52
53 @Override
54 public User getUser() {
55 return isSuccess()
56 ? new DefaultUser(user, password, false, roles, this.features.getFeatures(roles))
57 : null;
58 }
59 } // class Authentication
60
61 public Authenticator() {
62 }
63
64 private static File credentialsFile() {
65 String env = System.getenv("FLYS_USER_FILE");
66 if (env == null) {
67 env = System.getProperty(
68 "flys.user.file",
69 System.getProperty("user.home", ".")
70 + System.getProperty("file.separator")
71 + "flys_user_file");
72 }
73 log.debug("Using credentials file " + env);
74 return new File(env);
75
76 }
77
78 @Override
79 public de.intevation.flys.client.server.auth.Authentication auth(
80 String username,
81 String password,
82 String encoding,
83 Features features
84 )
85 throws AuthenticationException, IOException
86 {
87 File file = credentialsFile();
88 if (!file.canRead() || !file.isFile()) {
89 log.error("cannot find user file '" + file + "'");
90 return new Authentication(null, null, new ArrayList<String>(0), features);
91 }
92
93 BufferedReader reader =
94 new BufferedReader(
95 new FileReader(file));
96 try {
97 String line;
98 while ((line = reader.readLine()) != null) {
99 if ((line = line.trim()).length() == 0
100 || line.startsWith("#")) {
101 continue;
102 }
103
104 String[] parts = line.split("\\s+");
105 if (parts.length < 2) {
106 continue;
107 }
108
109 if (parts[0].equals(username)) {
110 log.debug("user '" + username + "' found.");
111 if (parts[1].equals(password)) {
112 List<String> roles =
113 new ArrayList<String>(parts.length - 2);
114
115 for (int i = 2; i < parts.length; i++) {
116 roles.add(parts[i]);
117 }
118
119 log.debug("success");
120 return new Authentication(username, password, roles, features);
121 }
122 // Stop: user found, wrong password
123 break;
124 }
125 }
126 }
127 finally {
128 reader.close();
129 }
130 log.debug("failed");
131 return null;
132 }
133 }
134 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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