org.springframework.security.messaging.handler.invocation.reactive

Class AuthenticationPrincipalArgumentResolver

java.lang.Object

org.springframework.security.messaging.handler.invocation.reactive.AuthenticationPrincipalArgumentResolver

All Implemented Interfaces:

org.springframework.messaging.handler.invocation.reactive.HandlerMethodArgumentResolver

public class AuthenticationPrincipalArgumentResolver
extends java.lang.Object
implements org.springframework.messaging.handler.invocation.reactive.HandlerMethodArgumentResolver

Allows resolving the Authentication.getPrincipal() using the AuthenticationPrincipal annotation. For example, the following Controller:

 @Controller
 public class MyController {
     @MessageMapping("/im")
     public void im(@AuthenticationPrincipal CustomUser customUser) {
         // do something with CustomUser
     }
 }
 

Will resolve the CustomUser argument using Authentication.getPrincipal() from the ReactiveSecurityContextHolder. If the Authentication or Authentication.getPrincipal() is null, it will return null. If the types do not match, null will be returned unless AuthenticationPrincipal.errorOnInvalidType() is true in which case a ClassCastException will be thrown.

Alternatively, users can create a custom meta annotation as shown below:

 @Target({ ElementType.PARAMETER })
 @Retention(RetentionPolicy.RUNTIME)
 @AuthenticationPrincipal
 public @interface CurrentUser {
 }
 

The custom annotation can then be used instead. For example:

 @Controller
 public class MyController {
     @MessageMapping("/im")
     public void im(@CurrentUser CustomUser customUser) {
         // do something with CustomUser
     }
 }
 

Since:

5.2

Constructor Summary

Constructors

Constructor and Description
AuthenticationPrincipalArgumentResolver()

Method Summary

Modifier and Type	Method and Description
reactor.core.publisher.Mono<java.lang.Object>	resolveArgument(org.springframework.core.MethodParameter parameter, org.springframework.messaging.Message<?> message)
void	setAdapterRegistry(org.springframework.core.ReactiveAdapterRegistry adapterRegistry) Sets the ReactiveAdapterRegistry to be used.
void	setBeanResolver(org.springframework.expression.BeanResolver beanResolver) Sets the BeanResolver to be used on the expressions
boolean	supportsParameter(org.springframework.core.MethodParameter parameter)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AuthenticationPrincipalArgumentResolver

public AuthenticationPrincipalArgumentResolver()

Method Detail

setBeanResolver

public void setBeanResolver(org.springframework.expression.BeanResolver beanResolver)

Sets the BeanResolver to be used on the expressions

Parameters:

beanResolver - the BeanResolver to use

setAdapterRegistry

public void setAdapterRegistry(org.springframework.core.ReactiveAdapterRegistry adapterRegistry)

Sets the ReactiveAdapterRegistry to be used.

Parameters:

adapterRegistry - the ReactiveAdapterRegistry to use. Cannot be null. Default is ReactiveAdapterRegistry.getSharedInstance()

supportsParameter

public boolean supportsParameter(org.springframework.core.MethodParameter parameter)

Specified by:

supportsParameter in interface org.springframework.messaging.handler.invocation.reactive.HandlerMethodArgumentResolver

resolveArgument

public reactor.core.publisher.Mono<java.lang.Object> resolveArgument(org.springframework.core.MethodParameter parameter,
                                                                     org.springframework.messaging.Message<?> message)

Specified by:

resolveArgument in interface org.springframework.messaging.handler.invocation.reactive.HandlerMethodArgumentResolver