my Spring CustomSecurityExpressionRoot not working

Question

I created a New Security Expression in my spring project but it not working. Here is my code.

Firstly, i make a CustomPermissionEvaluator which implement PermissionEvaluator:

public class CustomPermissionEvaluator implements PermissionEvaluator {
    @Override
    public boolean hasPermission(Authentication auth, Object targetDomainObject, Object permission) {
        if ((auth == null) || (targetDomainObject == null) || !(permission instanceof String)) {
            return false;
        }
        final String targetType = targetDomainObject.getClass().getSimpleName().toUpperCase();
        return hasPrivilege(auth, targetType, permission.toString().toUpperCase());
    }

    @Override
    public boolean hasPermission(Authentication auth, Serializable targetId, String targetType, Object permission) {
        if ((auth == null) || (targetType == null) || !(permission instanceof String)) {
            return false;
        }
        return hasPrivilege(auth, targetType.toUpperCase(), permission.toString().toUpperCase());
    }

    private boolean hasPrivilege(Authentication auth, String targetType, String permission) {
        for (final GrantedAuthority grantedAuth : auth.getAuthorities()) {
            if (grantedAuth.getAuthority().startsWith(targetType) && grantedAuth.getAuthority().contains(permission)) {
                return true;
            }
        }
        return false;
    }
}

And CustomSecurityExpressionRoot implement MethodSecurityExpressionOperations

public class CustomSecurityExpressionRoot implements MethodSecurityExpressionOperations {

    private final Logger log = LoggerFactory.getLogger(CustomSecurityExpressionRoot.class);

    protected final Authentication authentication;
    private AuthenticationTrustResolver trustResolver;
    private RoleHierarchy roleHierarchy;
    private Set<String> roles = new HashSet<>();
    private String defaultRolePrefix = "ROLE_";
    private PermissionEvaluator permissionEvaluator;
    private MyRepository myRepository;

    private Object filterObject;
    private Object returnObject;

    public CustomSecurityExpressionRoot(Authentication authentication) {
        if (authentication == null) {
            throw new IllegalArgumentException("Authentication object cannot be null");
        }
        this.authentication = authentication;
        log.debug("Custom Security Expression Root ran");
    }

    // @Override
    // Override some method


    // test
    public boolean isAdmin(Long groupId){
        log.debug("Group Id is {}", groupId);
        return true;
    }

    public static <T> boolean allIsNull(T... items) {
        for (T item : items) if (item != null) return false;
        return true;
    }

}

And then, I create CustomMethodSecurityExpressionHandler which will Override method createSecurityExpressionRoot

public class CustomMethodSecurityExpressionHandler extends DefaultMethodSecurityExpressionHandler {

    private final AuthenticationTrustResolver trustResolver = new AuthenticationTrustResolverImpl();
    private ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) {
        super.setApplicationContext(applicationContext);
        this.applicationContext = applicationContext;
    }

    @Override
    protected MethodSecurityExpressionOperations createSecurityExpressionRoot(Authentication authentication, MethodInvocation invocation) {
        CustomSecurityExpressionRoot root = new CustomSecurityExpressionRoot(authentication);
        root.setPermissionEvaluator(getPermissionEvaluator());
        root.setTrustResolver(this.trustResolver);
        root.setRoleHierarchy(getRoleHierarchy());
        root.setMyRepository(applicationContext.getBean(MyRepository.class));
        return root;
    }
}

And finally, I configure the application

@Configuration
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class MethodSecurityConfig extends GlobalMethodSecurityConfiguration {

    @Autowired
    ApplicationContext applicationContext;

    @Override
    protected MethodSecurityExpressionHandler createExpressionHandler() {
        CustomMethodSecurityExpressionHandler expressionHandler = new CustomMethodSecurityExpressionHandler();
        expressionHandler.setPermissionEvaluator(new CustomPermissionEvaluator());
        expressionHandler.setApplicationContext(applicationContext);
        return expressionHandler;
    }
}

And I added isAdmin() restriction to 1 of my API

@RestController
@RequestMapping("/api")
public class MyResource {

    private final Logger log = LoggerFactory.getLogger(MyResource.class);

    private static final String ENTITY_NAME = "MyResource";

    @Value("${jhipster.clientApp.name}")
    private String applicationName;

    private final MyService myService;

    private final MyRepository myRepository;

    private final MyKafkaService KafkaService;

    public MyResource(GroupMemberService myService, MyRepository myRepository, MyKafkaService myKafkaService) {
        this.myService = myService;
        this.myRepository = myRepository;
        this.KafkaService = KafkaService;
    }
    
    @PreAuthorize("isAdmin(#week)")
    @GetMapping("/todo/{week}")
    public ResponseEntity<List<TodoDTO>> getAllTodoInWeek(@PathVariable Long week, Pageable pageable) {
        log.debug("REST request to get a page of Todo");
        Page<TodoDTO> page = myService.findAllByWeek(week, pageable);
        HttpHeaders headers = PaginationUtil.generatePaginationHttpHeaders(ServletUriComponentsBuilder.fromCurrentRequest(), page);
        return ResponseEntity.ok().headers(headers).body(page.getContent());
    }
}

I was excited to use postman to test this api and eagerly waiting for the desired result. But i get error Caused by: org.springframework.expression.spel.SpelEvaluationException: EL1004E: Method call: Method isAdmin() cannot be found on type org.springframework.security.access.expression.method.MethodSecurityExpressionRoot

java.lang.IllegalArgumentException: Failed to evaluate expression 'isAdmin()'
    at org.springframework.security.access.expression.ExpressionUtils.evaluateAsBoolean(ExpressionUtils.java:33)
    at org.springframework.security.access.expression.method.ExpressionBasedPreInvocationAdvice.before(ExpressionBasedPreInvocationAdvice.java:51)
    at org.springframework.security.access.prepost.PreInvocationAuthorizationAdviceVoter.vote(PreInvocationAuthorizationAdviceVoter.java:71)
    at org.springframework.security.access.prepost.PreInvocationAuthorizationAdviceVoter.vote(PreInvocationAuthorizationAdviceVoter.java:42)
    at org.springframework.security.access.vote.AffirmativeBased.decide(AffirmativeBased.java:60)
    at org.springframework.security.access.intercept.AbstractSecurityInterceptor.attemptAuthorization(AbstractSecurityInterceptor.java:238)
    at org.springframework.security.access.intercept.AbstractSecurityInterceptor.beforeInvocation(AbstractSecurityInterceptor.java:208)
    at org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:58)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:698)
    at vn.vnedu.studyspace.group_store.web.rest.GroupMemberResource$$EnhancerBySpringCGLIB$$df9b89b9.getAllGroupMembersInGroup(<generated>)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:497)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:584)
    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
    at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:91)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:327)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:115)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:81)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:121)
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:126)
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:81)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
    at org.springframework.security.oauth2.client.web.OAuth2AuthorizationCodeGrantFilter.doFilterInternal(OAuth2AuthorizationCodeGrantFilter.java:168)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:105)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:149)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
    at org.springframework.security.oauth2.server.resource.web.BearerTokenAuthenticationFilter.doFilterInternal(BearerTokenAuthenticationFilter.java:137)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
    at org.springframework.security.oauth2.client.web.OAuth2AuthorizationRequestRedirectFilter.doFilterInternal(OAuth2AuthorizationRequestRedirectFilter.java:178)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103)
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:89)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
    at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90)
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:110)
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:55)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:211)
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:183)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271)
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
    at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:96)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
    at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
    at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
    at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
    at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
    at io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68)
    at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:117)
    at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
    at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.servlet.handlers.SendErrorPageHandler.handleRequest(SendErrorPageHandler.java:52)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.servlet.handlers.SessionRestoringHandler.handleRequest(SessionRestoringHandler.java:119)
    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:280)
    at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:79)
    at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:134)
    at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:131)
    at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
    at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:260)
    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:79)
    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:100)
    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:387)
    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:852)
    at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
    at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:2019)
    at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1558)
    at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1449)
    at org.xnio.XnioWorker$WorkerThreadFactory$1$1.run(XnioWorker.java:1280)
    at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: org.springframework.expression.spel.SpelEvaluationException: EL1004E: Method call: Method isAdmin() cannot be found on type org.springframework.security.access.expression.method.MethodSecurityExpressionRoot
    at org.springframework.expression.spel.ast.MethodReference.findAccessorForMethod(MethodReference.java:226)
    at org.springframework.expression.spel.ast.MethodReference.getValueInternal(MethodReference.java:135)
    at org.springframework.expression.spel.ast.MethodReference.getValueInternal(MethodReference.java:95)
    at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:117)
    at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:308)
    at org.springframework.security.access.expression.ExpressionUtils.evaluateAsBoolean(ExpressionUtils.java:30)
Caused by: org.springframework.expression.spel.SpelEvaluationException: EL1004E: Method call: Method isAdmin() cannot be found on type org.springframework.security.access.expression.method.MethodSecurityExpressionRoot

Please tell me where I went wrong. Thank so much

Answer 1

Just in case someone still want to use CustomSecurityExpressionRoot

Some introduction on why:

After several hours of debug I found out that PrePostMethodSecurityConfiguration.createEvaluationContext(Supplier<Authentication> authentication, MethodInvocation invocation) calls createEvaluationContext(authentication, invocation) on expressionHandler (which is our CustomMethodSecurityExpressionHandler Bean)

The problem is that DefaultMethodSecurityExpressionHandler (our parent class) overrides this method:

@Override
public EvaluationContext createEvaluationContext(Supplier<Authentication> authentication, 
                                                 MethodInvocation mi) {
        MethodSecurityExpressionOperations root = 
                createSecurityExpressionRoot(authentication, mi);
        MethodSecurityEvaluationContext ctx = new MethodSecurityEvaluationContext(root, mi,
                getParameterNameDiscoverer());
        ctx.setBeanResolver(getBeanResolver());
        return ctx;
}

And because it uses private createSecurityExpressionRoot() method, root is now always = new MethodSecurityExpressionRoot(authentication)

To fix this behavior, we can just also override createEvaluationContext to return it to it's interface default implementation:

public class CustomMethodSecurityExpressionHandler extends DefaultMethodSecurityExpressionHandler {
    
    ...
    
    @Override
    public EvaluationContext createEvaluationContext(Supplier<Authentication> authentication, 
                                                     MethodInvocation invocation) {
        return createEvaluationContext(authentication.get(), invocation);
    }
}

Under the hood, it will call our alredy overriden createSecurityExpressionRoot( Authentication authentication, MethodInvocation invocation)

Answer 2

For the once which are also facing this error:

"Failed to evaluate expression '@customSecurityExpression.hasGVO('ABCDE')'",

We have created a utility library/dependency for all our spring boot resource (3.1.5) servers, so we only need to maintain the functionality once.

Custom @PreAuthorize check - code snipped:

@PreAuthorize("@customSecurityExpression.hasGVO('ABCDE')")
@Retention(RetentionPolicy.RUNTIME)
@Schema(description = "Admin permission 'ABCDE' required.")
@Target({ ElementType.METHOD, ElementType.TYPE })
public @interface AuthorizeHasAdminRights {
}

While debugging DefaultListableBeanFactory.java, we encountered that our spring bean (@Component) was defined with a full qualified package path, so therefore the bean could not be found in @PreAuthorize of the resource server.

Solution: We had to defined a dedicated component name via

@Component("customSecurityExpression")
public class CustomSecurityExpression { ... }

so DefaultListableBeanFactory#getBeanDefinition(String beanName) was able to find the spring bean in the field: beanDefinitionMap.

Disclaimer: This may only occur if your spring bean gets created in an dependency

Answer 3

Generally don't use a custom MethodSecurityExpressionOperations instead just write a class which does what you want. Register that as a bean (make it an @Component) and reference that in your expression.

Something like the following

@Component
public class OurSecurity {

  public boolean isAdmin(Long groupId) {
    log.debug("Group Id is {}", groupId);
    return true;
  }
}

If you setup Spring Boot correctly this will be picked up and registered as a bean. In SpEL you can reference a bean using the @. So rewrite your expression to the following.

@PreAuthorize("@ourSecurity.isAdmin(#week)")

Which will now call the method on the provided bean. You can now remove all the custom parts and just use this. This is easier than trying to replace the moving parts in Spring Security.

You can also use the same expression with the access method on the HttpSecurity.antMatcher (and other matches) to compose/write security expressions.