/*
* 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.karaf.jaas.modules.properties;
import org.apache.karaf.jaas.modules.BackingEngine;
import org.apache.karaf.jaas.modules.RolePrincipal;
import org.apache.karaf.jaas.modules.UserPrincipal;
import org.apache.karaf.jaas.modules.encryption.EncryptionSupport;
import org.apache.karaf.util.Properties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.List;
/**
* @author iocanel
*/
public class PropertiesBackingEngine implements BackingEngine {
private final Logger logger = LoggerFactory.getLogger(PropertiesBackingEngine.class);
private Properties users;
private EncryptionSupport encryptionSupport;
/**
* Constructor
*
* @param users
*/
public PropertiesBackingEngine(Properties users) {
this.users = users;
}
public PropertiesBackingEngine(Properties users, EncryptionSupport encryptionSupport) {
this.users = users;
this.encryptionSupport = encryptionSupport;
}
/**
* Add a user.
*
* @param username
* @param password
*/
public void addUser(String username, String password) {
String[] infos = null;
StringBuffer userInfoBuffer = new StringBuffer();
String newPassword = password;
//If encryption support is enabled, encrypt password
if (encryptionSupport != null && encryptionSupport.getEncryption() != null) {
newPassword = encryptionSupport.getEncryption().encryptPassword(password);
if (encryptionSupport.getEncryptionPrefix() != null) {
newPassword = encryptionSupport.getEncryptionPrefix() + newPassword;
}
if (encryptionSupport.getEncryptionSuffix() != null) {
newPassword = newPassword + encryptionSupport.getEncryptionSuffix();
}
}
String userInfos = users.get(username);
//If user already exists, update password
if (userInfos != null && userInfos.length() > 0) {
infos = userInfos.split(",");
userInfoBuffer.append(newPassword);
for (int i = 1; i < infos.length; i++) {
userInfoBuffer.append(",");
userInfoBuffer.append(infos[i]);
}
String newUserInfo = userInfoBuffer.toString();
users.put(username, newUserInfo);
} else {
users.put(username, newPassword);
}
try {
users.save();
} catch (Exception ex) {
logger.error("Cannot update users file,", ex);
}
}
/**
* Delete a User.
*
* @param username
*/
public void deleteUser(String username) {
users.remove(username);
try {
users.save();
} catch (Exception ex) {
logger.error("Cannot remove users file,", ex);
}
}
/**
* List Users
*
* @return
*/
public List<UserPrincipal> listUsers() {
List<UserPrincipal> result = new ArrayList<UserPrincipal>();
for (String userNames : users.keySet()) {
UserPrincipal userPrincipal = new UserPrincipal(userNames);
result.add(userPrincipal);
}
return result;
}
/**
* List the Roles of the {@param user}
*
* @param user
* @return
*/
public List<RolePrincipal> listRoles(UserPrincipal user) {
List<RolePrincipal> result = new ArrayList<RolePrincipal>();
String userInfo = users.get(user.getName());
String[] infos = userInfo.split(",");
for (int i = 1; i < infos.length; i++) {
result.add(new RolePrincipal(infos[i]));
}
return result;
}
/**
* Add a role to a User.
*
* @param username
* @param role
*/
public void addRole(String username, String role) {
String userInfos = users.get(username);
if (userInfos != null) {
String newUserInfos = userInfos + "," + role;
users.put(username, newUserInfos);
}
try {
users.save();
} catch (Exception ex) {
logger.error("Cannot update users file,", ex);
}
}
/**
* Delete a Role form User.
*
* @param username
* @param role
*/
public void deleteRole(String username, String role) {
String[] infos = null;
StringBuffer userInfoBuffer = new StringBuffer();
String userInfos = users.get(username);
//If user already exists, remove the role
if (userInfos != null && userInfos.length() > 0) {
infos = userInfos.split(",");
String password = infos[0];
userInfoBuffer.append(password);
for (int i = 1; i < infos.length; i++) {
if (infos[i] != null && !infos[i].equals(role)) {
userInfoBuffer.append(",");
userInfoBuffer.append(infos[i]);
}
}
String newUserInfo = userInfoBuffer.toString();
users.put(username, newUserInfo);
}
try {
users.save();
} catch (Exception ex) {
logger.error("Cannot update users file,", ex);
}
}
}