Class AbstractAuthenticationProcessingFilter

  • All Implemented Interfaces:
    javax.servlet.Filter, org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanNameAware, org.springframework.beans.factory.DisposableBean, org.springframework.beans.factory.InitializingBean, org.springframework.context.ApplicationEventPublisherAware, org.springframework.context.EnvironmentAware, org.springframework.context.MessageSourceAware, org.springframework.core.env.EnvironmentCapable, org.springframework.web.context.ServletContextAware
    Direct Known Subclasses:
    CasAuthenticationFilter, OAuth2LoginAuthenticationFilter, OpenIDAuthenticationFilter, Saml2WebSsoAuthenticationFilter, UsernamePasswordAuthenticationFilter

    public abstract class AbstractAuthenticationProcessingFilter
    extends org.springframework.web.filter.GenericFilterBean
    implements org.springframework.context.ApplicationEventPublisherAware, org.springframework.context.MessageSourceAware
    Abstract processor of browser-based HTTP-based authentication requests.

    Authentication Process

    The filter requires that you set the authenticationManager property. An AuthenticationManager is required to process the authentication request tokens created by implementing classes.

    This filter will intercept a request and attempt to perform authentication from that request if the request matches the setRequiresAuthenticationRequestMatcher(RequestMatcher).

    Authentication is performed by the attemptAuthentication method, which must be implemented by subclasses.

    Authentication Success

    If authentication is successful, the resulting Authentication object will be placed into the SecurityContext for the current thread, which is guaranteed to have already been created by an earlier filter.

    The configured AuthenticationSuccessHandler will then be called to take the redirect to the appropriate destination after a successful login. The default behaviour is implemented in a SavedRequestAwareAuthenticationSuccessHandler which will make use of any DefaultSavedRequest set by the ExceptionTranslationFilter and redirect the user to the URL contained therein. Otherwise it will redirect to the webapp root "/". You can customize this behaviour by injecting a differently configured instance of this class, or by using a different implementation.

    See the successfulAuthentication(HttpServletRequest, HttpServletResponse, FilterChain, Authentication) method for more information.

    Authentication Failure

    If authentication fails, it will delegate to the configured AuthenticationFailureHandler to allow the failure information to be conveyed to the client. The default implementation is SimpleUrlAuthenticationFailureHandler , which sends a 401 error code to the client. It may also be configured with a failure URL as an alternative. Again you can inject whatever behaviour you require here.

    Event Publication

    If authentication is successful, an InteractiveAuthenticationSuccessEvent will be published via the application context. No events will be published if authentication was unsuccessful, because this would generally be recorded via an AuthenticationManager-specific application event.

    Session Authentication

    The class has an optional SessionAuthenticationStrategy which will be invoked immediately after a successful call to attemptAuthentication(). Different implementations can be injected to enable things like session-fixation attack prevention or to control the number of simultaneous sessions a principal may have.
    • Field Detail

      • eventPublisher

        protected org.springframework.context.ApplicationEventPublisher eventPublisher
      • authenticationDetailsSource

        protected AuthenticationDetailsSource<javax.servlet.http.HttpServletRequest,​?> authenticationDetailsSource
      • messages

        protected messages
    • Constructor Detail

      • AbstractAuthenticationProcessingFilter

        protected AbstractAuthenticationProcessingFilter​(java.lang.String defaultFilterProcessesUrl)
        defaultFilterProcessesUrl - the default value for filterProcessesUrl.
      • AbstractAuthenticationProcessingFilter

        protected AbstractAuthenticationProcessingFilter​(RequestMatcher requiresAuthenticationRequestMatcher)
        Creates a new instance
        requiresAuthenticationRequestMatcher - the RequestMatcher used to determine if authentication is required. Cannot be null.
      • AbstractAuthenticationProcessingFilter

        protected AbstractAuthenticationProcessingFilter​(java.lang.String defaultFilterProcessesUrl,
                                                         AuthenticationManager authenticationManager)
        Creates a new instance with a default filterProcessesUrl and an AuthenticationManager
        defaultFilterProcessesUrl - the default value for filterProcessesUrl.
        authenticationManager - the AuthenticationManager used to authenticate an Authentication object. Cannot be null.
    • Method Detail

      • afterPropertiesSet

        public void afterPropertiesSet()
        Specified by:
        afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean
        afterPropertiesSet in class org.springframework.web.filter.GenericFilterBean
      • doFilter

        public void doFilter​(javax.servlet.ServletRequest request,
                             javax.servlet.ServletResponse response,
                             javax.servlet.FilterChain chain)
        Invokes the requiresAuthentication method to determine whether the request is for authentication and should be handled by this filter. If it is an authentication request, the attemptAuthentication will be invoked to perform the authentication. There are then three possible outcomes:
        1. An Authentication object is returned. The configured SessionAuthenticationStrategy will be invoked (to handle any session-related behaviour such as creating a new session to protect against session-fixation attacks) followed by the invocation of successfulAuthentication(HttpServletRequest, HttpServletResponse, FilterChain, Authentication) method
        2. An AuthenticationException occurs during authentication. The unsuccessfulAuthentication method will be invoked
        3. Null is returned, indicating that the authentication process is incomplete. The method will then return immediately, assuming that the subclass has done any necessary work (such as redirects) to continue the authentication process. The assumption is that a later request will be received by this method where the returned Authentication object is not null.
        Specified by:
        doFilter in interface javax.servlet.Filter
      • requiresAuthentication

        protected boolean requiresAuthentication​(javax.servlet.http.HttpServletRequest request,
                                                 javax.servlet.http.HttpServletResponse response)
        Indicates whether this filter should attempt to process a login request for the current invocation.

        It strips any parameters from the "path" section of the request URL (such as the jsessionid parameter in https://host/myapp/index.html;jsessionid=blah) before matching against the filterProcessesUrl property.

        Subclasses may override for special requirements, such as Tapestry integration.

        true if the filter should attempt authentication, false otherwise.
      • attemptAuthentication

        public abstract Authentication attemptAuthentication​(javax.servlet.http.HttpServletRequest request,
                                                             javax.servlet.http.HttpServletResponse response)
                                                      throws AuthenticationException,
        Performs actual authentication.

        The implementation should do one of the following:

        1. Return a populated authentication token for the authenticated user, indicating successful authentication
        2. Return null, indicating that the authentication process is still in progress. Before returning, the implementation should perform any additional work required to complete the process.
        3. Throw an AuthenticationException if the authentication process fails
        request - from which to extract parameters and perform the authentication
        response - the response, which may be needed if the implementation has to do a redirect as part of a multi-stage authentication process (such as OpenID).
        the authenticated user token, or null if authentication is incomplete.
        AuthenticationException - if authentication fails.
      • successfulAuthentication

        protected void successfulAuthentication​(javax.servlet.http.HttpServletRequest request,
                                                javax.servlet.http.HttpServletResponse response,
                                                javax.servlet.FilterChain chain,
                                                Authentication authResult)
        Default behaviour for successful authentication.
        1. Sets the successful Authentication object on the SecurityContextHolder
        2. Informs the configured RememberMeServices of the successful login
        3. Fires an InteractiveAuthenticationSuccessEvent via the configured ApplicationEventPublisher
        4. Delegates additional behaviour to the AuthenticationSuccessHandler.
        Subclasses can override this method to continue the FilterChain after successful authentication.
        request -
        response -
        chain -
        authResult - the object returned from the attemptAuthentication method.
      • unsuccessfulAuthentication

        protected void unsuccessfulAuthentication​(javax.servlet.http.HttpServletRequest request,
                                                  javax.servlet.http.HttpServletResponse response,
                                                  AuthenticationException failed)
        Default behaviour for unsuccessful authentication.
        1. Clears the SecurityContextHolder
        2. Stores the exception in the session (if it exists or allowSesssionCreation is set to true)
        3. Informs the configured RememberMeServices of the failed login
        4. Delegates additional behaviour to the AuthenticationFailureHandler.
      • setAuthenticationManager

        public void setAuthenticationManager​(AuthenticationManager authenticationManager)
      • setFilterProcessesUrl

        public void setFilterProcessesUrl​(java.lang.String filterProcessesUrl)
        Sets the URL that determines if authentication is required
        filterProcessesUrl -
      • setRequiresAuthenticationRequestMatcher

        public final void setRequiresAuthenticationRequestMatcher​(RequestMatcher requestMatcher)
      • setRememberMeServices

        public void setRememberMeServices​(RememberMeServices rememberMeServices)
      • setApplicationEventPublisher

        public void setApplicationEventPublisher​(org.springframework.context.ApplicationEventPublisher eventPublisher)
        Specified by:
        setApplicationEventPublisher in interface org.springframework.context.ApplicationEventPublisherAware
      • setAuthenticationDetailsSource

        public void setAuthenticationDetailsSource​(AuthenticationDetailsSource<javax.servlet.http.HttpServletRequest,​?> authenticationDetailsSource)
      • setMessageSource

        public void setMessageSource​(org.springframework.context.MessageSource messageSource)
        Specified by:
        setMessageSource in interface org.springframework.context.MessageSourceAware
      • getAllowSessionCreation

        protected boolean getAllowSessionCreation()
      • setAllowSessionCreation

        public void setAllowSessionCreation​(boolean allowSessionCreation)
      • setSessionAuthenticationStrategy

        public void setSessionAuthenticationStrategy​(SessionAuthenticationStrategy sessionStrategy)
        The session handling strategy which will be invoked immediately after an authentication request is successfully processed by the AuthenticationManager. Used, for example, to handle changing of the session identifier to prevent session fixation attacks.
        sessionStrategy - the implementation to use. If not set a null implementation is used.