How To Inject AuthenticationManager using Java Configuration in a Custom Filter

Question

I'm using Spring Security 3.2 and Spring 4.0.1

I'm working on converting an xml config into a Java config. When I annotate AuthenticationManager with @Autowired in my Filter, I'm getting an exception

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.security.authentication.AuthenticationManager] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}

I've tried injecting AuthenticationManagerFactoryBean but that also fails with a similar exception.

Here is the XML configuration I'm working from

<?xml version="1.0" encoding="UTF-8"?> <beans ...>
    <security:authentication-manager id="authenticationManager">
        <security:authentication-provider user-service-ref="userDao">
            <security:password-encoder ref="passwordEncoder"/>
        </security:authentication-provider>
    </security:authentication-manager>

    <security:http
            realm="Protected API"
            use-expressions="true"
            auto-config="false"
            create-session="stateless"
            entry-point-ref="unauthorizedEntryPoint"
            authentication-manager-ref="authenticationManager">
        <security:access-denied-handler ref="accessDeniedHandler"/>
        <security:custom-filter ref="tokenAuthenticationProcessingFilter" position="FORM_LOGIN_FILTER"/>
        <security:custom-filter ref="tokenFilter" position="REMEMBER_ME_FILTER"/>
        <security:intercept-url method="GET" pattern="/rest/news/**" access="hasRole('user')"/>
        <security:intercept-url method="PUT" pattern="/rest/news/**" access="hasRole('admin')"/>
        <security:intercept-url method="POST" pattern="/rest/news/**" access="hasRole('admin')"/>
        <security:intercept-url method="DELETE" pattern="/rest/news/**" access="hasRole('admin')"/>
    </security:http>

    <bean class="com.unsubcentral.security.TokenAuthenticationProcessingFilter"
          id="tokenAuthenticationProcessingFilter">
        <constructor-arg value="/rest/user/authenticate"/>
        <property name="authenticationManager" ref="authenticationManager"/>
        <property name="authenticationSuccessHandler" ref="authenticationSuccessHandler"/>
        <property name="authenticationFailureHandler" ref="authenticationFailureHandler"/>
    </bean>

</beans>

Here is the Java Config I'm attempting

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private UserDetailsService userDetailsService;

    @Autowired
    private PasswordEncoder passwordEncoder;

    @Autowired
    private AuthenticationEntryPoint authenticationEntryPoint;

    @Autowired
    private AccessDeniedHandler accessDeniedHandler;

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth
                .userDetailsService(userDetailsService).passwordEncoder(passwordEncoder);
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                .sessionManagement()
                    .sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                    .and()
                .exceptionHandling()
                    .authenticationEntryPoint(authenticationEntryPoint)
                    .accessDeniedHandler(accessDeniedHandler)
                    .and();
        //TODO: Custom Filters
    }
}

And this is the Custom Filter class. The line giving me trouble is the setter for AuthenticationManager

@Component
public class TokenAuthenticationProcessingFilter extends AbstractAuthenticationProcessingFilter {


    @Autowired
    public TokenAuthenticationProcessingFilter(@Value("/rest/useAuthenticationManagerr/authenticate") String defaultFilterProcessesUrl) {
        super(defaultFilterProcessesUrl);
    }


    @Override
    public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException, IOException, ServletException {
      ...
    }

    private String obtainPassword(HttpServletRequest request) {
        return request.getParameter("password");
    }

    private String obtainUsername(HttpServletRequest request) {
        return request.getParameter("username");
    }

    @Autowired
    @Override
    public void setAuthenticationManager(AuthenticationManager authenticationManager) {
        super.setAuthenticationManager(authenticationManager);
    }

    @Autowired
    @Override
    public void setAuthenticationSuccessHandler(AuthenticationSuccessHandler successHandler) {
        super.setAuthenticationSuccessHandler(successHandler);
    }

    @Autowired
    @Override
    public void setAuthenticationFailureHandler(AuthenticationFailureHandler failureHandler) {
        super.setAuthenticationFailureHandler(failureHandler);
    }
}

Answer 1

Override method authenticationManagerBean in WebSecurityConfigurerAdapter to expose the AuthenticationManager built using configure(AuthenticationManagerBuilder) as a Spring bean:

For example:

   @Bean(name = BeanIds.AUTHENTICATION_MANAGER)
   @Override
   public AuthenticationManager authenticationManagerBean() throws Exception {
       return super.authenticationManagerBean();
   }