/*
* Copyright 2012-2014 the original author or authors.
*
* Licensed 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.springframework.boot.actuate.security;
import java.util.HashMap;
import java.util.Map;
import org.springframework.boot.actuate.audit.AuditEvent;
import org.springframework.boot.actuate.audit.listener.AuditApplicationEvent;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.context.ApplicationEventPublisherAware;
import org.springframework.context.ApplicationListener;
import org.springframework.security.authentication.event.AbstractAuthenticationEvent;
import org.springframework.security.authentication.event.AbstractAuthenticationFailureEvent;
import org.springframework.security.web.authentication.switchuser.AuthenticationSwitchUserEvent;
import org.springframework.util.ClassUtils;
/**
* {@link ApplicationListener} expose Spring Security {@link AbstractAuthenticationEvent
* authentication events} as {@link AuditEvent}s.
*
* @author Dave Syer
*/
public class AuthenticationAuditListener implements
ApplicationListener<AbstractAuthenticationEvent>, ApplicationEventPublisherAware {
private static final String WEB_LISTENER_CHECK_CLASS = "org.springframework.security.web.authentication.switchuser.AuthenticationSwitchUserEvent";
private ApplicationEventPublisher publisher;
private WebAuditListener webListener = maybeCreateWebListener();
@Override
public void setApplicationEventPublisher(ApplicationEventPublisher publisher) {
this.publisher = publisher;
}
private static WebAuditListener maybeCreateWebListener() {
if (ClassUtils.isPresent(WEB_LISTENER_CHECK_CLASS, null)) {
return new WebAuditListener();
}
return null;
}
@Override
public void onApplicationEvent(AbstractAuthenticationEvent event) {
if (event instanceof AbstractAuthenticationFailureEvent) {
onAuthenticationFailureEvent((AbstractAuthenticationFailureEvent) event);
}
else if (this.webListener != null && this.webListener.accepts(event)) {
this.webListener.process(this, event);
}
else {
onAuthenticationEvent(event);
}
}
private void onAuthenticationFailureEvent(AbstractAuthenticationFailureEvent event) {
Map<String, Object> data = new HashMap<String, Object>();
data.put("type", event.getException().getClass().getName());
data.put("message", event.getException().getMessage());
publish(new AuditEvent(event.getAuthentication().getName(),
"AUTHENTICATION_FAILURE", data));
}
private void onAuthenticationEvent(AbstractAuthenticationEvent event) {
Map<String, Object> data = new HashMap<String, Object>();
if (event.getAuthentication().getDetails() != null) {
data.put("details", event.getAuthentication().getDetails());
}
publish(new AuditEvent(event.getAuthentication().getName(),
"AUTHENTICATION_SUCCESS", data));
}
private void publish(AuditEvent event) {
if (this.publisher != null) {
this.publisher.publishEvent(new AuditApplicationEvent(event));
}
}
private static class WebAuditListener {
public void process(AuthenticationAuditListener listener,
AbstractAuthenticationEvent input) {
if (listener != null) {
AuthenticationSwitchUserEvent event = (AuthenticationSwitchUserEvent) input;
Map<String, Object> data = new HashMap<String, Object>();
if (event.getAuthentication().getDetails() != null) {
data.put("details", event.getAuthentication().getDetails());
}
data.put("target", event.getTargetUser().getUsername());
listener.publish(new AuditEvent(event.getAuthentication().getName(),
"AUTHENTICATION_SWITCH", data));
}
}
public boolean accepts(AbstractAuthenticationEvent event) {
return event instanceof AuthenticationSwitchUserEvent;
}
}
}