/*
* 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.servicemix.kernel.jaas.modules.properties;
import java.io.File;
import java.io.IOException;
import java.security.Principal;
import java.util.HashSet;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import javax.security.auth.Subject;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.NameCallback;
import javax.security.auth.callback.PasswordCallback;
import javax.security.auth.callback.UnsupportedCallbackException;
import javax.security.auth.login.FailedLoginException;
import javax.security.auth.login.LoginException;
import javax.security.auth.spi.LoginModule;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.servicemix.kernel.jaas.modules.RolePrincipal;
import org.apache.servicemix.kernel.jaas.modules.UserPrincipal;
/**
* JAAS Login module for user / password, based on two properties files.
*
*/
public class PropertiesLoginModule implements LoginModule {
private static final String USER_FILE = "users";
private static final Log LOG = LogFactory.getLog(PropertiesLoginModule.class);
private Subject subject;
private CallbackHandler callbackHandler;
private boolean debug;
private String usersFile;
private String user;
private Set principals = new HashSet();
public void initialize(Subject sub, CallbackHandler handler, Map sharedState, Map options) {
this.subject = sub;
this.callbackHandler = handler;
debug = "true".equalsIgnoreCase((String) options.get("debug"));
usersFile = (String) options.get(USER_FILE) + "";
if (debug) {
LOG.debug("Initialized debug=" + debug + " usersFile=" + usersFile);
}
}
public boolean login() throws LoginException {
Properties users = new Properties();
File f = new File(usersFile);
try {
users.load(new java.io.FileInputStream(f));
} catch (IOException ioe) {
throw new LoginException("Unable to load user properties file " + f);
}
Callback[] callbacks = new Callback[2];
callbacks[0] = new NameCallback("Username: ");
callbacks[1] = new PasswordCallback("Password: ", false);
try {
callbackHandler.handle(callbacks);
} catch (IOException ioe) {
throw new LoginException(ioe.getMessage());
} catch (UnsupportedCallbackException uce) {
throw new LoginException(uce.getMessage() + " not available to obtain information from user");
}
user = ((NameCallback) callbacks[0]).getName();
char[] tmpPassword = ((PasswordCallback) callbacks[1]).getPassword();
if (tmpPassword == null) {
tmpPassword = new char[0];
}
String userInfos = (String) users.get(user);
if (userInfos == null) {
throw new FailedLoginException("User does not exist");
}
String[] infos = userInfos.split(",");
if (!new String(tmpPassword).equals(infos[0])) {
throw new FailedLoginException("Password does not match");
}
principals = new HashSet<Principal>();
principals.add(new UserPrincipal(user));
for (int i = 1; i < infos.length; i++) {
principals.add(new RolePrincipal(infos[i]));
}
users.clear();
if (debug) {
LOG.debug("login " + user);
}
return true;
}
public boolean commit() throws LoginException {
subject.getPrincipals().addAll(principals);
clear();
if (debug) {
LOG.debug("commit");
}
return true;
}
public boolean abort() throws LoginException {
clear();
if (debug) {
LOG.debug("abort");
}
return true;
}
public boolean logout() throws LoginException {
subject.getPrincipals().removeAll(principals);
principals.clear();
if (debug) {
LOG.debug("logout");
}
return true;
}
private void clear() {
user = null;
}
}