AuthenticationProvider para UsernamePasswordAuthenticationToken

Question

mi web.xml config es

<filter> 
     <filter-name>springSecurityFilterChain</filter-name> 
     <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> 
    </filter> 

    <filter-mapping> 
     <filter-name>springSecurityFilterChain</filter-name> 
     <url-pattern>/*</url-pattern> 
    </filter-mapping> 

aquí está mi configuración de seguridad

<intercept-url pattern="/*" access="ROLE_USER" /> 
    <intercept-url pattern="/*.ico" filters="none" /> 


</http> 

<beans:bean id="customAuthenticationProvider" class="net.spring3.provider.MyAuthProvider" /> 

    <authentication-manager> 

     <authentication-provider ref="customAuthenticationProvider" /> 

    </authentication-manager> 

Aquí está mi clase customAuthProvider

public class MyAuthProvider implements AuthenticationProvider { 


    @Override 
    public boolean supports(Class<? extends Object> arg0) { 
     // TODO Auto-generated method stub 
     return false; 
    } 


    @SuppressWarnings("serial") 
     private static Map<String, String> SIMPLE_USERS = new HashMap<String, String>(2) {{ 
      put("joe", "joe"); 
      put("bob", "bob"); 
     }}; 

     @SuppressWarnings("serial") 
     private static List<GrantedAuthority> AUTHORITIES = new ArrayList<GrantedAuthority>(1) {{ 
      add(new GrantedAuthorityImpl("ROLE_USER")); 
     }}; 

     @Override 
     public Authentication authenticate(Authentication auth) throws AuthenticationException 
     { 
      // All your user authentication needs 
      System.out.println("==Authenticate Me=="); 
      if (SIMPLE_USERS.containsKey(auth.getPrincipal()) 
       && SIMPLE_USERS.get(auth.getPrincipal()).equals(auth.getCredentials())) 
      { 
       return new UsernamePasswordAuthenticationToken(auth.getName(), auth.getCredentials(), AUTHORITIES); 
      } 
      throw new BadCredentialsException("Username/Password does not match for " + auth.getPrincipal()); 
     } 




} 

La página muestra el formulario de inicio de sesión y cuando ingreso bob y bob como inicio de sesión, arroja el siguiente error.

Your login attempt was not successful, try again. 

Reason: No AuthenticationProvider found for org.springframework.security.authentication.UsernamePasswordAuthenticationToken 

Revisé los registros en el nivel de depuración TODOS y esto es lo que obtengo.

FINE: Request is to process authentication 
Nov 17, 2011 5:37:36 AM org.springframework.context.support.AbstractApplicationContext publishEvent 
FINEST: Publishing event in Root WebApplicationContext: org.springframework.security.authentication.event.AuthenticationFailureProviderNotFoundEvent[source=org.springframework.security.authentication.UsernamePasswordAuthenticationToken@ffff8dfd: Principal: sd; Credentials: [PROTECTED]; Authenticated: false; Details: org.springframework.security.web.authentication.WebAuthenticationDetails@fffe3f86: RemoteIpAddress: 127.0.0.1; SessionId: x4lg4vtktpw9; Not granted any authorities] 
Nov 17, 2011 5:37:36 AM org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter unsuccessfulAuthentication 
FINE: Authentication request failed: org.springframework.security.authentication.ProviderNotFoundException: No AuthenticationProvider found for org.springframework.security.authentication.UsernamePasswordAuthenticationToken 

Cualquier ayuda en esto ... ¿Qué estoy haciendo mal aquí?

Answer 1

Como ya escribió en su comentario, el problema es que siempre devuelve false en el método supports() de su proveedor de autenticación. Pero en lugar de volver siempre true debe comprobar el authentication se obtiene de esta manera:

public class MyAuthenticationProvider implements AuthenticationProvider, Serializable { 

    @Override 
    public boolean supports(Class<? extends Object> authentication) { 
     return (UsernamePasswordAuthenticationToken.class.isAssignableFrom(authentication)); 
    } 

    // ... 
}