1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18
19 package org.apache.catalina.startup;
20
21
22 import java.io.File;
23 import java.util.Hashtable;
24 import java.util.Enumeration;
25
26
27 /**
28 * Concrete implementation of the <strong>UserDatabase</code> interface
29 * considers all directories in a directory whose pathname is specified
30 * to our constructor to be "home" directories for those users.
31 *
32 * @author Craig R. McClanahan
33 * @version $Revision: 467222 $ $Date: 2006-10-24 05:17:11 +0200 (mar., 24 oct. 2006) $
34 */
35
36 public final class HomesUserDatabase
37 implements UserDatabase {
38
39
40 // --------------------------------------------------------- Constructors
41
42
43 /**
44 * Initialize a new instance of this user database component.
45 */
46 public HomesUserDatabase() {
47
48 super();
49
50 }
51
52
53 // --------------------------------------------------- Instance Variables
54
55
56 /**
57 * The set of home directories for all defined users, keyed by username.
58 */
59 private Hashtable homes = new Hashtable();
60
61
62 /**
63 * The UserConfig listener with which we are associated.
64 */
65 private UserConfig userConfig = null;
66
67
68 // ----------------------------------------------------------- Properties
69
70
71 /**
72 * Return the UserConfig listener with which we are associated.
73 */
74 public UserConfig getUserConfig() {
75
76 return (this.userConfig);
77
78 }
79
80
81 /**
82 * Set the UserConfig listener with which we are associated.
83 *
84 * @param userConfig The new UserConfig listener
85 */
86 public void setUserConfig(UserConfig userConfig) {
87
88 this.userConfig = userConfig;
89 init();
90
91 }
92
93
94 // ------------------------------------------------------- Public Methods
95
96
97 /**
98 * Return an absolute pathname to the home directory for the specified user.
99 *
100 * @param user User for which a home directory should be retrieved
101 */
102 public String getHome(String user) {
103
104 return ((String) homes.get(user));
105
106 }
107
108
109 /**
110 * Return an enumeration of the usernames defined on this server.
111 */
112 public Enumeration getUsers() {
113
114 return (homes.keys());
115
116 }
117
118
119 // ------------------------------------------------------ Private Methods
120
121
122 /**
123 * Initialize our set of users and home directories.
124 */
125 private void init() {
126
127 String homeBase = userConfig.getHomeBase();
128 File homeBaseDir = new File(homeBase);
129 if (!homeBaseDir.exists() || !homeBaseDir.isDirectory())
130 return;
131 String homeBaseFiles[] = homeBaseDir.list();
132
133 for (int i = 0; i < homeBaseFiles.length; i++) {
134 File homeDir = new File(homeBaseDir, homeBaseFiles[i]);
135 if (!homeDir.isDirectory() || !homeDir.canRead())
136 continue;
137 homes.put(homeBaseFiles[i], homeDir.toString());
138 }
139
140
141 }
142
143
144 }
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