Package org.springframework.security.authentication.jaas

Class AbstractJaasAuthenticationProvider

java.lang.Object
org.springframework.security.authentication.jaas.AbstractJaasAuthenticationProvider
All Implemented Interfaces:
EventListener, org.springframework.beans.factory.Aware, org.springframework.beans.factory.InitializingBean, org.springframework.context.ApplicationEventPublisherAware, org.springframework.context.ApplicationListener<SessionDestroyedEvent>, AuthenticationProvider
Direct Known Subclasses:
DefaultJaasAuthenticationProvider, JaasAuthenticationProvider
public abstract class AbstractJaasAuthenticationProvider extends Object implements AuthenticationProvider, org.springframework.context.ApplicationEventPublisherAware, org.springframework.beans.factory.InitializingBean, org.springframework.context.ApplicationListener<SessionDestroyedEvent>
An AuthenticationProvider implementation that retrieves user details from a JAAS login configuration.

This AuthenticationProvider is capable of validating UsernamePasswordAuthenticationToken requests contain the correct username and password.

This implementation is backed by a JAAS configuration that is provided by a subclass's implementation of createLoginContext(CallbackHandler).

When using JAAS login modules as the authentication source, sometimes the LoginContext will require CallbackHandlers. The AbstractJaasAuthenticationProvider uses an internal CallbackHandler to wrap the JaasAuthenticationCallbackHandlers configured in the ApplicationContext. When the LoginContext calls the internal CallbackHandler, control is passed to each JaasAuthenticationCallbackHandler for each Callback passed.

JaasAuthenticationCallbackHandlers are passed to the AbstractJaasAuthenticationProvider through the callbackHandlers property. 

 <property name="callbackHandlers">
   <list>
     <bean class="org.springframework.security.authentication.jaas.TestCallbackHandler"/>
     <bean class="org.springframework.security.authentication.jaas.JaasNameCallbackHandler"/>
     <bean class="org.springframework.security.authentication.jaas.JaasPasswordCallbackHandler"/>
  </list>
 </property>

After calling LoginContext.login(), the AbstractJaasAuthenticationProvider will retrieve the returned Principals from the Subject (LoginContext.getSubject().getPrincipals). Each returned principal is then passed to the configured AuthorityGranters. An AuthorityGranter is a mapping between a returned Principal, and a role name. If an AuthorityGranter wishes to grant an Authorization a role, it returns that role name from it's AuthorityGranter.grant(java.security.Principal) method. The returned role will be applied to the Authorization object as a GrantedAuthority.

AuthorityGranters are configured in spring xml as follows... 

 <property name="authorityGranters">
   <list>
     <bean class="org.springframework.security.authentication.jaas.TestAuthorityGranter"/>
   </list>
  </property>

  • Field Details

    • log

      protected final org.apache.commons.logging.Log log

  • Constructor Details

    • AbstractJaasAuthenticationProvider

      public AbstractJaasAuthenticationProvider()

  • Method Details

    • afterPropertiesSet

      public void afterPropertiesSet() throws Exception
      Validates the required properties are set. In addition, if setCallbackHandlers(JaasAuthenticationCallbackHandler[]) has not been called with valid handlers, initializes to use JaasNameCallbackHandler and JaasPasswordCallbackHandler.
      Specified by:
      afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean
      Throws:
      Exception

    • authenticate

      public Authentication authenticate(Authentication auth) throws AuthenticationException
      Attempts to login the user given the Authentication objects principal and credential
      Specified by:
      authenticate in interface AuthenticationProvider
      Parameters:
      auth - The Authentication object to be authenticated.
      Returns:
      The authenticated Authentication object, with it's grantedAuthorities set.
      Throws:
      AuthenticationException - This implementation does not handle 'locked' or 'disabled' accounts. This method only throws a AuthenticationServiceException, with the message of the LoginException that will be thrown, should the loginContext.login() method fail.

    • createLoginContext

      protected abstract LoginContext createLoginContext(CallbackHandler handler) throws LoginException
      Creates the LoginContext to be used for authentication.
      Parameters:
      handler - The CallbackHandler that should be used for the LoginContext (never null).
      Returns:
      the LoginContext to use for authentication.
      Throws:
      LoginException

    • handleLogout

      protected void handleLogout(SessionDestroyedEvent event)
      Handles the logout by getting the security contexts for the destroyed session and invoking LoginContext.logout() for any which contain a JaasAuthenticationToken.
      Parameters:
      event - the session event which contains the current session

    • onApplicationEvent

      public void onApplicationEvent(SessionDestroyedEvent event)
      Specified by:
      onApplicationEvent in interface org.springframework.context.ApplicationListener<SessionDestroyedEvent>

    • publishFailureEvent

      protected void publishFailureEvent(UsernamePasswordAuthenticationToken token, AuthenticationException ase)
      Publishes the JaasAuthenticationFailedEvent. Can be overridden by subclasses for different functionality
      Parameters:
      token - The authentication token being processed
      ase - The exception that caused the authentication failure

    • publishSuccessEvent

      protected void publishSuccessEvent(UsernamePasswordAuthenticationToken token)
      Publishes the JaasAuthenticationSuccessEvent. Can be overridden by subclasses for different functionality.
      Parameters:
      token - The token being processed

    • setAuthorityGranters

      public void setAuthorityGranters(AuthorityGranter[] authorityGranters)
      Set the AuthorityGranters that should be consulted for role names to be granted to the Authentication.
      Parameters:
      authorityGranters - AuthorityGranter array
      See Also:

    • setCallbackHandlers

      public void setCallbackHandlers(JaasAuthenticationCallbackHandler[] callbackHandlers)
      Set the JAASAuthentcationCallbackHandler array to handle callback objects generated by the LoginContext.login method.
      Parameters:
      callbackHandlers - Array of JAASAuthenticationCallbackHandlers

    • setLoginContextName

      public void setLoginContextName(String loginContextName)
      Set the loginContextName, this name is used as the index to the configuration specified in the loginConfig property.
      Parameters:
      loginContextName -

    • setLoginExceptionResolver

      public void setLoginExceptionResolver(LoginExceptionResolver loginExceptionResolver)

    • supports

      public boolean supports(Class<?> aClass)
      Description copied from interface: AuthenticationProvider
      Returns true if this AuthenticationProvider supports the indicated Authentication object.

      Returning true does not guarantee an AuthenticationProvider will be able to authenticate the presented instance of the Authentication class. It simply indicates it can support closer evaluation of it. An AuthenticationProvider can still return null from the AuthenticationProvider.authenticate(Authentication) method to indicate another AuthenticationProvider should be tried.

      Selection of an AuthenticationProvider capable of performing authentication is conducted at runtime the ProviderManager.

      Specified by:
      supports in interface AuthenticationProvider
      Returns:
      true if the implementation can more closely evaluate the Authentication class presented

    • setApplicationEventPublisher

      public void setApplicationEventPublisher(org.springframework.context.ApplicationEventPublisher applicationEventPublisher)
      Specified by:
      setApplicationEventPublisher in interface org.springframework.context.ApplicationEventPublisherAware

    • getApplicationEventPublisher

      protected org.springframework.context.ApplicationEventPublisher getApplicationEventPublisher()