/*
* 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.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
/**
* Concrete implementation of the <code>UserDatabase</code> interface considers all directories in a directory whose
* pathname is specified to our constructor to be "home" directories for those users.
*/
public final class HomesUserDatabase implements UserDatabase {
/**
* The set of home directories for all defined users, keyed by username.
*/
private final Map<String,String> homes = new HashMap<>();
/**
* The UserConfig listener with which we are associated.
*/
private UserConfig userConfig = null;
@Override
public UserConfig getUserConfig() {
return this.userConfig;
}
@Override
public void setUserConfig(UserConfig userConfig) {
this.userConfig = userConfig;
init();
}
@Override
public String getHome(String user) {
return homes.get(user);
}
@Override
public Enumeration<String> getUsers() {
return Collections.enumeration(homes.keySet());
}
/**
* 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();
if (homeBaseFiles == null) {
return;
}
for (String homeBaseFile : homeBaseFiles) {
File homeDir = new File(homeBaseDir, homeBaseFile);
if (!homeDir.isDirectory() || !homeDir.canRead()) {
continue;
}
homes.put(homeBaseFile, homeDir.toString());
}
}
}