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SpringSecurityReference.md

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Spring Security Reference

6. Security Namespace Configuration

6.3. Advanced Web Features

Standard Filter Aliases and Ordering

Alias Filter Class Namespace Element or Attribute
CHANNEL_FILTER ChannelProcessingFilter http/intercept-url@requires-channel
SECURITY_CONTEXT_FILTER SecurityContextPersistenceFilter http
CONCURRENT_SESSION_FILTER ConcurrentSessionFilter session-management/concurrency-control
HEADERS_FILTER HeaderWriterFilter http/headers
CSRF_FILTER CsrfFilter http/csrf
LOGOUT_FILTER LogoutFilter http/logout
X509_FILTER X509AuthenticationFilter http/x509
PRE_AUTH_FILTER AbstractPreAuthenticatedProcessingFilter Subclasses N/A
CAS_FILTER CasAuthenticationFilter N/A
FORM_LOGIN_FILTER UsernamePasswordAuthenticationFilter http/form-login
BASIC_AUTH_FILTER BasicAuthenticationFilter http/http-basic
SERVLET_API_SUPPORT_FILTER SecurityContextHolderAwareRequestFilter http/@servlet-api-provision
JAAS_API_SUPPORT_FILTER JaasApiIntegrationFilter http/@jaas-api-provision
REMEMBER_ME_FILTER RememberMeAuthenticationFilter http/remember-me
ANONYMOUS_FILTER AnonymousAuthenticationFilter http/anonymous
SESSION_MANAGEMENT_FILTER SessionManagementFilter session-management
EXCEPTION_TRANSLATION_FILTER ExceptionTranslationFilter http
FILTER_SECURITY_INTERCEPTOR FilterSecurityInterceptor http
SWITCH_USER_FILTER SwitchUserFilter N/A

9. Technical Overview

9.3 Authentication

9.3.1 What is authentication in Spring Security?

  1. The username and password are obtained and combined into an instance of UsernamePasswordAuthenticationToken (an instance of the Authentication interface, which we saw earlier).
  2. The token is passed to an instance of AuthenticationManager for validation.
  3. The AuthenticationManager returns a fully populated Authentication instance on successful authentication.
  4. The security context is established by calling SecurityContextHolder.getContext().setAuthentication(…​), passing in the returned authentication object.
  • AuthenticationExample

13. The Security Filter Chain

13.3 Filter Ordering

  • ChannelProcessingFilter, because it might need to redirect to a different protocol
  • SecurityContextPersistenceFilter, so a SecurityContext can be set up in the SecurityContextHolder at the beginning of a web request, and any changes to the SecurityContext can be copied to the HttpSession when the web request ends (ready for use with the next web request)
  • ConcurrentSessionFilter, because it uses the SecurityContextHolder functionality and needs to update the SessionRegistry to reflect ongoing requests from the principal
  • Authentication processing mechanisms - UsernamePasswordAuthenticationFilter, CasAuthenticationFilter, BasicAuthenticationFilter etc - so that the SecurityContextHolder can be modified to contain a valid Authentication request token
  • The SecurityContextHolderAwareRequestFilter, if you are using it to install a Spring Security aware HttpServletRequestWrapper into your servlet container
  • The JaasApiIntegrationFilter, if a JaasAuthenticationToken is in the SecurityContextHolder this will process the FilterChain as the Subject in the JaasAuthenticationToken
  • RememberMeAuthenticationFilter, so that if no earlier authentication processing mechanism updated the SecurityContextHolder, and the request presents a cookie that enables remember-me services to take place, a suitable remembered Authentication object will be put there
  • AnonymousAuthenticationFilter, so that if no earlier authentication processing mechanism updated the SecurityContextHolder, an anonymous Authentication object will be put there
  • ExceptionTranslationFilter, to catch any Spring Security exceptions so that either an HTTP error response can be returned or an appropriate AuthenticationEntryPoint can be launched
  • FilterSecurityInterceptor, to protect web URIs and raise exceptions when access is denied

26. Expression-Based Access Control

26.1 Overview

26.1.1 Common Built-In Expressions

Expression Description
hasRole([role]) Returns true if the current principal has the specified role. By default if the supplied role does not start with 'ROLE_' it will be added. This can be customized by modifying the defaultRolePrefix on DefaultWebSecurityExpressionHandler.
hasAnyRole([role1,role2]) Returns true if the current principal has any of the supplied roles (given as a comma-separated list of strings). By default if the supplied role does not start with 'ROLE_' it will be added. This can be customized by modifying the defaultRolePrefix on DefaultWebSecurityExpressionHandler.
hasAuthority([authority]) Returns true if the current principal has the specified authority.
hasAnyAuthority([authority1,authority2]) Returns true if the current principal has any of the supplied roles (given as a comma-separated list of strings)
principal Allows direct access to the principal object representing the current user
authentication Allows direct access to the current Authentication object obtained from the SecurityContext
permitAll Always evaluates to true
denyAll Always evaluates to false
isAnonymous() Returns true if the current principal is an anonymous user
isRememberMe() Returns true if the current principal is a remember-me user
isAuthenticated() Returns true if the user is not anonymous
isFullyAuthenticated() Returns true if the user is not an anonymous or a remember-me user
hasPermission(Object target, Object permission) Returns true if the user has access to the provided target for the given permission. For example, hasPermission(domainObject, 'read')
hasPermission(Object targetId, String targetType, Object permission) Returns true if the user has access to the provided target for the given permission. For example, hasPermission(1, 'com.example.domain.Message', 'read')

References