Narrow range of events listened for in security audit

The InteractiveAuthenticationSuccessEvent is always shadowed by a
regulat AuthenticationSuccessEvent, so there's no need to listen for
all AbstractAuthenticationSuccessEvents.

Fixes gh-4355

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/security/AuthenticationAuditListener.java

@@ -26,6 +26,7 @@ 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.authentication.event.AuthenticationSuccessEvent;
 import org.springframework.security.web.authentication.switchuser.AuthenticationSwitchUserEvent;
 import org.springframework.util.ClassUtils;
 
@@ -64,8 +65,8 @@ public class AuthenticationAuditListener implements
 		else if (this.webListener != null && this.webListener.accepts(event)) {
 			this.webListener.process(this, event);
 		}
-		else {
+		else if (event instanceof AuthenticationSuccessEvent) {
-			onAuthenticationEvent(event);
+			onAuthenticationEvent((AuthenticationSuccessEvent) event);
 		}
 	}
 
@@ -77,7 +78,7 @@ public class AuthenticationAuditListener implements
 				"AUTHENTICATION_FAILURE", data));
 	}
 
-	private void onAuthenticationEvent(AbstractAuthenticationEvent event) {
+	private void onAuthenticationEvent(AuthenticationSuccessEvent event) {
 		Map<String, Object> data = new HashMap<String, Object>();
 		if (event.getAuthentication().getDetails() != null) {
 			data.put("details", event.getAuthentication().getDetails());

spring-boot-actuator/src/test/java/org/springframework/boot/actuate/security/AuthenticationAuditListenerTests.java

@@ -18,19 +18,20 @@ package org.springframework.boot.actuate.security;
 
 import org.junit.Before;
 import org.junit.Test;
-
 import org.springframework.context.ApplicationEvent;
 import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.security.authentication.BadCredentialsException;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
 import org.springframework.security.authentication.event.AuthenticationFailureExpiredEvent;
 import org.springframework.security.authentication.event.AuthenticationSuccessEvent;
+import org.springframework.security.authentication.event.InteractiveAuthenticationSuccessEvent;
 import org.springframework.security.core.authority.AuthorityUtils;
 import org.springframework.security.core.userdetails.User;
 import org.springframework.security.web.authentication.switchuser.AuthenticationSwitchUserEvent;
 
 import static org.mockito.Matchers.anyObject;
 import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 
 /**
@@ -55,6 +56,14 @@ public class AuthenticationAuditListenerTests {
 		verify(this.publisher).publishEvent((ApplicationEvent) anyObject());
 	}
 
+	@Test
+	public void testOtherAuthenticationSuccess() {
+		this.listener.onApplicationEvent(new InteractiveAuthenticationSuccessEvent(
+				new UsernamePasswordAuthenticationToken("user", "password"), getClass()));
+		// No need to audit this one (it shadows a regular AuthenticationSuccessEvent)
+		verify(this.publisher, never()).publishEvent((ApplicationEvent) anyObject());
+	}
+
 	@Test
 	public void testAuthenticationFailed() {
 		this.listener.onApplicationEvent(new AuthenticationFailureExpiredEvent(

spring-boot-samples/spring-boot-sample-web-secure/src/main/resources/application.properties

@@ -3,3 +3,4 @@ security.basic.enabled: false
 # demo only:
 security.user.password: password
 logging.level.org.springframework.security: INFO
+logging.level.org.springframework.boot.actuate.audit.listener.AuditListener: DEBUG