delta := remoteTime.Sub(localTime)
	if delta < 0 {
		delta *= -1
	}

	if delta > DefaultSkewTime {
		return errSkewedAuthTime
	}

	return nil
}

// IsAuthValid - To authenticate and verify the time difference.
func (s *storageRESTServer) IsAuthValid(w http.ResponseWriter, r *http.Request) bool {
	if s.getStorage() == nil {
		s.writeErrorResponse(w, errDiskNotFound)
		return false
	}

En esta excepción, incluimos los scopes requeridos (si los hay) como un string separado por espacios (usando `scope_str`). Ponemos ese string que contiene los scopes en el header `WWW-Authenticate` (esto es parte de la especificación).

{* ../../docs_src/security/tutorial005_an_py310.py hl[106,108:116] *}

## Verificar el `username` y la forma de los datos { #verify-the-username-and-data-shape }

developing Gradle. By default, the build is [configured](https://github.com/gradle/gradle-org-conventions-plugin#what-it-does) to use the build cache node in the EU region.

The build cache has anonymous read access, so you don't need to authenticate in order to use it. You can use a different build cache node by specifying `-Ddevelocity.edge.discovery=false -DcacheNode=us` for a build cache node in the US or `-Ddevelocity.edge.discovery=false -DcacheNode=au` for a build cache node in Australia....

    server.useHttps(handshakeCertificates.sslSocketFactory())
    server.enqueue(
      MockResponse
        .Builder()
        .code(407)
        .headers(headersOf("Proxy-Authenticate", "Basic realm=\"localhost\""))
        .inTunnel()
        .build(),
    )
    server.enqueue(
      MockResponse
        .Builder()
        .inTunnel()
        .build(),
    )

```sh
mc admin policy attach myminio mypolicy --group='cn=projectx,ou=groups,ou=hwengg,dc=min,dc=io'
```

</details>

**Note that by default no policy is set on a user**. Thus even if they successfully authenticate with AD/LDAP credentials, they have no access to object storage as the default access policy is to deny all access.

## API Request Parameters

### LDAPUsername

            throws SmbException {
        checkNotClosed();

        // Check if authentication has expired
        if (isExpired()) {
            throw new SmbException("Authentication has expired. Please re-authenticate.");
        }

        // Generate session ID for secure key management
        if (this.sessionId == null) {

        .code(responseCode)
        .body("ABCDE")
        .addHeader("WWW-Authenticate: challenge")
    when (responseCode) {
      HttpURLConnection.HTTP_PROXY_AUTH -> {
        builder.addHeader("Proxy-Authenticate: Basic realm=\"protected area\"")
      }

      HttpURLConnection.HTTP_UNAUTHORIZED -> {
        builder.addHeader("WWW-Authenticate: Basic realm=\"protected area\"")
      }

}

func loadRootCredentials() auth.Credentials {
	// At this point, either both environment variables
	// are defined or both are not defined.
	// Check both cases and authenticate them if correctly defined
	var user, password string
	var legacyCredentials bool
	//nolint:gocritic
	if env.IsSet(config.EnvRootUser) && env.IsSet(config.EnvRootPassword) {
		user = env.Get(config.EnvRootUser, "")

            }
        }
        final HttpServletResponse response = LaResponseUtil.getResponse();
        if (t instanceof final InvalidAccessTokenException e) {
            response.setHeader("WWW-Authenticate", "Bearer error=\"" + e.getType() + "\"");
            writeJsonResponse(HttpServletResponse.SC_UNAUTHORIZED, message);
        } else {
            writeJsonResponse(status, message);
        }
    }

				fmt.Errorf("None of the given policies (`%s`) are defined, credentials will not be generated", policyName))
			return
		}
	}

	res, err := authn.Authenticate(roleArn, token)
	if err != nil {
		writeSTSErrorResponse(ctx, w, ErrSTSInvalidParameterValue, err)
		return
	}

	// If authentication failed, return the error message to the user.