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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.catalina.startup;
import java.io.File;
import java.util.Hashtable;
import java.util.Enumeration;
/**
* Concrete implementation of the <strong>UserDatabase</code> interface
* considers all directories in a directory whose pathname is specified
* to our constructor to be "home" directories for those users.
*
* @author Craig R. McClanahan
*
*/
public final class HomesUserDatabase
implements UserDatabase {
// --------------------------------------------------------- Constructors
/**
* Initialize a new instance of this user database component.
*/
public HomesUserDatabase() {
super();
}
// --------------------------------------------------- Instance Variables
/**
* The set of home directories for all defined users, keyed by username.
*/
private Hashtable homes = new Hashtable();
/**
* The UserConfig listener with which we are associated.
*/
private UserConfig userConfig = null;
// ----------------------------------------------------------- Properties
/**
* Return the UserConfig listener with which we are associated.
*/
public UserConfig getUserConfig() {
return (this.userConfig);
}
/**
* Set the UserConfig listener with which we are associated.
*
* @param userConfig The new UserConfig listener
*/
public void setUserConfig(UserConfig userConfig) {
this.userConfig = userConfig;
init();
}
// ------------------------------------------------------- Public Methods
/**
* Return an absolute pathname to the home directory for the specified user.
*
* @param user User for which a home directory should be retrieved
*/
public String getHome(String user) {
return ((String) homes.get(user));
}
/**
* Return an enumeration of the usernames defined on this server.
*/
public Enumeration getUsers() {
return (homes.keys());
}
// ------------------------------------------------------ Private Methods
/**
* Initialize our set of users and home directories.
*/
private void init() {
String homeBase = userConfig.getHomeBase();
File homeBaseDir = new File(homeBase);
if (!homeBaseDir.exists() || !homeBaseDir.isDirectory())
return;
String homeBaseFiles[] = homeBaseDir.list();
for (int i = 0; i < homeBaseFiles.length; i++) {
File homeDir = new File(homeBaseDir, homeBaseFiles[i]);
if (!homeDir.isDirectory() || !homeDir.canRead())
continue;
homes.put(homeBaseFiles[i], homeDir.toString());
}
}
}
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