359 lines
12 KiB
Plaintext
359 lines
12 KiB
Plaintext
= Method Security
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[[nsa-method-security]]
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== <method-security>
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This element is the primary means of adding support for securing methods on Spring Security beans.
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Methods can be secured by the use of annotations (defined at the interface or class level) or by defining a set of pointcuts.
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[[nsa-method-security-attributes]]
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=== <method-security> attributes
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[[nsa-method-security-pre-post-enabled]]
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* **pre-post-enabled**
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Enables Spring Security's pre and post invocation annotations (@PreFilter, @PreAuthorize, @PostFilter, @PostAuthorize) for this application context.
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Defaults to "true".
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[[nsa-method-security-secured-enabled]]
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* **secured-enabled**
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Enables Spring Security's @Secured annotation for this application context.
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Defaults to "false".
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[[nsa-method-security-jsr250-enabled]]
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* **jsr250-enabled**
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Enables JSR-250 authorization annotations (@RolesAllowed, @PermitAll, @DenyAll) for this application context.
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Defaults to "false".
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[[nsa-method-security-mode]]
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* **mode**
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If set to "aspectj", then uses AspectJ to intercept method invocations.
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[[nsa-method-security-proxy-target-class]]
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* **proxy-target-class**
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If true, class based proxying will be used instead of interface based proxying.
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Defaults to "false".
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[[nsa-method-security-security-context-holder-strategy-ref]]
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* **security-context-holder-strategy-ref**
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Specifies a SecurityContextHolderStrategy to use when retrieving the SecurityContext.
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Defaults to the value returned by SecurityContextHolder.getContextHolderStrategy().
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[[nsa-method-security-children]]
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=== Child Elements of <method-security>
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* xref:servlet/appendix/namespace/http.adoc#nsa-expression-handler[expression-handler]
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* <<nsa-protect-pointcut,protect-pointcut>>
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[[nsa-global-method-security]]
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== <global-method-security>
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This element is the primary means of adding support for securing methods on Spring Security beans.
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Methods can be secured by the use of annotations (defined at the interface or class level) or by defining a set of pointcuts as child elements, using AspectJ syntax.
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[[nsa-global-method-security-attributes]]
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=== <global-method-security> Attributes
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[[nsa-global-method-security-access-decision-manager-ref]]
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* **access-decision-manager-ref**
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Method security uses the same `AccessDecisionManager` configuration as web security, but this can be overridden using this attribute.
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By default an AffirmativeBased implementation is used for with a RoleVoter and an AuthenticatedVoter.
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[[nsa-global-method-security-authentication-manager-ref]]
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* **authentication-manager-ref**
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A reference to an `AuthenticationManager` that should be used for method security.
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[[nsa-global-method-security-jsr250-annotations]]
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* **jsr250-annotations**
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Specifies whether JSR-250 style attributes are to be used (for example "RolesAllowed").
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This will require the javax.annotation.security classes on the classpath.
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Setting this to true also adds a `Jsr250Voter` to the `AccessDecisionManager`, so you need to make sure you do this if you are using a custom implementation and want to use these annotations.
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[[nsa-global-method-security-metadata-source-ref]]
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* **metadata-source-ref**
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An external `MethodSecurityMetadataSource` instance can be supplied which will take priority over other sources (such as the default annotations).
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[[nsa-global-method-security-mode]]
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* **mode**
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This attribute can be set to "aspectj" to specify that AspectJ should be used instead of the default Spring AOP.
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Secured methods must be woven with the `AnnotationSecurityAspect` from the `spring-security-aspects` module.
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It is important to note that AspectJ follows Java's rule that annotations on interfaces are not inherited.
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This means that methods that define the Security annotations on the interface will not be secured.
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Instead, you must place the Security annotation on the class when using AspectJ.
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[[nsa-global-method-security-order]]
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* **order**
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Allows the advice "order" to be set for the method security interceptor.
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[[nsa-global-method-security-pre-post-annotations]]
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* **pre-post-annotations**
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Specifies whether the use of Spring Security's pre and post invocation annotations (@PreFilter, @PreAuthorize, @PostFilter, @PostAuthorize) should be enabled for this application context.
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Defaults to "disabled".
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[[nsa-global-method-security-proxy-target-class]]
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* **proxy-target-class**
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If true, class based proxying will be used instead of interface based proxying.
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[[nsa-global-method-security-run-as-manager-ref]]
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* **run-as-manager-ref**
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A reference to an optional `RunAsManager` implementation which will be used by the configured `MethodSecurityInterceptor`
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[[nsa-global-method-security-secured-annotations]]
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* **secured-annotations**
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Specifies whether the use of Spring Security's @Secured annotations should be enabled for this application context.
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Defaults to "disabled".
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[[nsa-global-method-security-children]]
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=== Child Elements of <global-method-security>
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* <<nsa-after-invocation-provider,after-invocation-provider>>
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* xref:servlet/appendix/namespace/http.adoc#nsa-expression-handler[expression-handler]
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* <<nsa-pre-post-annotation-handling,pre-post-annotation-handling>>
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* <<nsa-protect-pointcut,protect-pointcut>>
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[[nsa-after-invocation-provider]]
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== <after-invocation-provider>
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This element can be used to decorate an `AfterInvocationProvider` for use by the security interceptor maintained by the `<global-method-security>` namespace.
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You can define zero or more of these within the `global-method-security` element, each with a `ref` attribute pointing to an `AfterInvocationProvider` bean instance within your application context.
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[[nsa-after-invocation-provider-parents]]
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=== Parent Elements of <after-invocation-provider>
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* <<nsa-global-method-security,global-method-security>>
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[[nsa-after-invocation-provider-attributes]]
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=== <after-invocation-provider> Attributes
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[[nsa-after-invocation-provider-ref]]
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* **ref**
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Defines a reference to a Spring bean that implements `AfterInvocationProvider`.
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[[nsa-pre-post-annotation-handling]]
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== <pre-post-annotation-handling>
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Allows the default expression-based mechanism for handling Spring Security's pre and post invocation annotations (@PreFilter, @PreAuthorize, @PostFilter, @PostAuthorize) to be replaced entirely.
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Only applies if these annotations are enabled.
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[[nsa-pre-post-annotation-handling-parents]]
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=== Parent Elements of <pre-post-annotation-handling>
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* <<nsa-global-method-security,global-method-security>>
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[[nsa-pre-post-annotation-handling-children]]
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=== Child Elements of <pre-post-annotation-handling>
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* <<nsa-invocation-attribute-factory,invocation-attribute-factory>>
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* <<nsa-post-invocation-advice,post-invocation-advice>>
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* <<nsa-pre-invocation-advice,pre-invocation-advice>>
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[[nsa-invocation-attribute-factory]]
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== <invocation-attribute-factory>
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Defines the PrePostInvocationAttributeFactory instance which is used to generate pre and post invocation metadata from the annotated methods.
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[[nsa-invocation-attribute-factory-parents]]
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=== Parent Elements of <invocation-attribute-factory>
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* <<nsa-pre-post-annotation-handling,pre-post-annotation-handling>>
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[[nsa-invocation-attribute-factory-attributes]]
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=== <invocation-attribute-factory> Attributes
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[[nsa-invocation-attribute-factory-ref]]
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* **ref**
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Defines a reference to a Spring bean Id.
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[[nsa-post-invocation-advice]]
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== <post-invocation-advice>
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Customizes the `PostInvocationAdviceProvider` with the ref as the `PostInvocationAuthorizationAdvice` for the <pre-post-annotation-handling> element.
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[[nsa-post-invocation-advice-parents]]
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=== Parent Elements of <post-invocation-advice>
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* <<nsa-pre-post-annotation-handling,pre-post-annotation-handling>>
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[[nsa-post-invocation-advice-attributes]]
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=== <post-invocation-advice> Attributes
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[[nsa-post-invocation-advice-ref]]
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* **ref**
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Defines a reference to a Spring bean Id.
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[[nsa-pre-invocation-advice]]
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== <pre-invocation-advice>
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Customizes the `PreInvocationAuthorizationAdviceVoter` with the ref as the `PreInvocationAuthorizationAdviceVoter` for the <pre-post-annotation-handling> element.
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[[nsa-pre-invocation-advice-parents]]
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=== Parent Elements of <pre-invocation-advice>
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* <<nsa-pre-post-annotation-handling,pre-post-annotation-handling>>
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[[nsa-pre-invocation-advice-attributes]]
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=== <pre-invocation-advice> Attributes
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[[nsa-pre-invocation-advice-ref]]
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* **ref**
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Defines a reference to a Spring bean Id.
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[[nsa-protect-pointcut]]
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== Securing Methods using
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`<protect-pointcut>`
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Rather than defining security attributes on an individual method or class basis using the `@Secured` annotation, you can define cross-cutting security constraints across whole sets of methods and interfaces in your service layer using the `<protect-pointcut>` element.
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You can find an example in the xref:servlet/authorization/method-security.adoc#ns-protect-pointcut[namespace introduction].
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[[nsa-protect-pointcut-parents]]
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=== Parent Elements of <protect-pointcut>
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* <<nsa-global-method-security,global-method-security>>
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* <<nsa-method-security,method-security>>
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[[nsa-protect-pointcut-attributes]]
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=== <protect-pointcut> Attributes
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[[nsa-protect-pointcut-access]]
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* **access**
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Access configuration attributes list that applies to all methods matching the pointcut, e.g.
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"ROLE_A,ROLE_B"
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[[nsa-protect-pointcut-expression]]
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* **expression**
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An AspectJ expression, including the `execution` keyword.
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For example, `execution(int com.foo.TargetObject.countLength(String))`.
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[[nsa-intercept-methods]]
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== <intercept-methods>
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Can be used inside a bean definition to add a security interceptor to the bean and set up access configuration attributes for the bean's methods
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[[nsa-intercept-methods-attributes]]
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=== <intercept-methods> Attributes
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[[nsa-intercept-methods-use-authorization-manager]]
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* **use-authorization-manager**
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Use AuthorizationManager API instead of AccessDecisionManager
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[[nsa-intercept-methods-authorization-manager-ref]]
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* **authorization-manager-ref**
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Optional AuthorizationManager bean ID to be used instead of the default (supercedes use-authorization-manager)
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[[nsa-intercept-methods-access-decision-manager-ref]]
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* **access-decision-manager-ref**
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Optional AccessDecisionManager bean ID to be used by the created method security interceptor.
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[[nsa-intercept-methods-children]]
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=== Child Elements of <intercept-methods>
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* <<nsa-protect,protect>>
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[[nsa-method-security-metadata-source]]
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== <method-security-metadata-source>
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Creates a MethodSecurityMetadataSource instance
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[[nsa-method-security-metadata-source-attributes]]
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=== <method-security-metadata-source> Attributes
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[[nsa-method-security-metadata-source-id]]
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* **id**
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A bean identifier, used for referring to the bean elsewhere in the context.
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[[nsa-method-security-metadata-source-use-expressions]]
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* **use-expressions**
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Enables the use of expressions in the 'access' attributes in <intercept-url> elements rather than the traditional list of configuration attributes.
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Defaults to 'false'.
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If enabled, each attribute should contain a single Boolean expression.
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If the expression evaluates to 'true', access will be granted.
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[[nsa-method-security-metadata-source-children]]
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=== Child Elements of <method-security-metadata-source>
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* <<nsa-protect,protect>>
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[[nsa-protect]]
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== <protect>
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Defines a protected method and the access control configuration attributes that apply to it.
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We strongly advise you NOT to mix "protect" declarations with any services provided "global-method-security".
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[[nsa-protect-parents]]
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=== Parent Elements of <protect>
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* <<nsa-intercept-methods,intercept-methods>>
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* <<nsa-method-security-metadata-source,method-security-metadata-source>>
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[[nsa-protect-attributes]]
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=== <protect> Attributes
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[[nsa-protect-access]]
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* **access**
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Access configuration attributes list that applies to the method, e.g.
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"ROLE_A,ROLE_B".
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[[nsa-protect-method]]
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* **method**
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A method name
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