Use RespondToAuthChallenge com um AWS SDK ou CLI

Os exemplos de códigos a seguir mostram como usar RespondToAuthChallenge.

Exemplos de ações são trechos de código de programas maiores e devem ser executados em contexto. É possível ver essa ação no contexto no seguinte exemplo de código:

• Inscrever um usuário com um grupo de usuários que exija MFA

CLI

AWS CLI

Como responder a um desafio de autorização

Este exemplo responde a um desafio de autorização iniciado com initiate-auth. É uma resposta ao REQUIRED desafio NEW PASSWORD _ _. Ele define uma senha para o usuário [e-mail].

Comando:

aws cognito-idp respond-to-auth-challenge --client-id 3n4b5urk1ft4fl3mg5e62d9ado --challenge-name NEW_PASSWORD_REQUIRED --challenge-responses USERNAME=[e-mail],NEW_PASSWORD="password" --session "SESSION_TOKEN"

Saída:

{
  "ChallengeParameters": {},
  "AuthenticationResult": {
      "AccessToken": "ACCESS_TOKEN",
      "ExpiresIn": 3600,
      "TokenType": "Bearer",
      "RefreshToken": "REFRESH_TOKEN",
      "IdToken": "ID_TOKEN",
      "NewDeviceMetadata": {
          "DeviceKey": "us-west-2_fec070d2-fa88-424a-8ec8-b26d7198eb23",
          "DeviceGroupKey": "-wt2ha1Zd"
      }
  }
}

• Para API obter detalhes, consulte RespondToAuthChallengena Referência de AWS CLI Comandos.

JavaScript

SDKpara JavaScript (v3)

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

const respondToAuthChallenge = ({
  clientId,
  username,
  session,
  userPoolId,
  code,
}) => {
  const client = new CognitoIdentityProviderClient({});

  const command = new RespondToAuthChallengeCommand({
    ChallengeName: ChallengeNameType.SOFTWARE_TOKEN_MFA,
    ChallengeResponses: {
      SOFTWARE_TOKEN_MFA_CODE: code,
      USERNAME: username,
    },
    ClientId: clientId,
    UserPoolId: userPoolId,
    Session: session,
  });

  return client.send(command);
};

• Para API obter detalhes, consulte RespondToAuthChallengeem AWS SDK for JavaScript APIReferência.

Python

SDKpara Python (Boto3)

nota

Tem mais sobre GitHub. Encontre o exemplo completo e veja como configurar e executar no AWS Code Examples Repository.

Faça login com um dispositivo rastreado. Para concluir o login, o cliente deve responder corretamente aos desafios do Secure Remote Password (SRP).

class CognitoIdentityProviderWrapper:
    """Encapsulates Amazon Cognito actions"""

    def __init__(self, cognito_idp_client, user_pool_id, client_id, client_secret=None):
        """
        :param cognito_idp_client: A Boto3 Amazon Cognito Identity Provider client.
        :param user_pool_id: The ID of an existing Amazon Cognito user pool.
        :param client_id: The ID of a client application registered with the user pool.
        :param client_secret: The client secret, if the client has a secret.
        """
        self.cognito_idp_client = cognito_idp_client
        self.user_pool_id = user_pool_id
        self.client_id = client_id
        self.client_secret = client_secret


    def sign_in_with_tracked_device(
        self,
        user_name,
        password,
        device_key,
        device_group_key,
        device_password,
        aws_srp,
    ):
        """
        Signs in to Amazon Cognito as a user who has a tracked device. Signing in
        with a tracked device lets a user sign in without entering a new MFA code.

        Signing in with a tracked device requires that the client respond to the SRP
        protocol. The scenario associated with this example uses the warrant package
        to help with SRP calculations.

        For more information on SRP, see https://en.wikipedia.org/wiki/Secure_Remote_Password_protocol.

        :param user_name: The user that is associated with the device.
        :param password: The user's password.
        :param device_key: The key of a tracked device.
        :param device_group_key: The group key of a tracked device.
        :param device_password: The password that is associated with the device.
        :param aws_srp: A class that helps with SRP calculations. The scenario
                        associated with this example uses the warrant package.
        :return: The result of the authentication. When successful, this contains an
                 access token for the user.
        """
        try:
            srp_helper = aws_srp.AWSSRP(
                username=user_name,
                password=device_password,
                pool_id="_",
                client_id=self.client_id,
                client_secret=None,
                client=self.cognito_idp_client,
            )

            response_init = self.cognito_idp_client.initiate_auth(
                ClientId=self.client_id,
                AuthFlow="USER_PASSWORD_AUTH",
                AuthParameters={
                    "USERNAME": user_name,
                    "PASSWORD": password,
                    "DEVICE_KEY": device_key,
                },
            )
            if response_init["ChallengeName"] != "DEVICE_SRP_AUTH":
                raise RuntimeError(
                    f"Expected DEVICE_SRP_AUTH challenge but got {response_init['ChallengeName']}."
                )

            auth_params = srp_helper.get_auth_params()
            auth_params["DEVICE_KEY"] = device_key
            response_auth = self.cognito_idp_client.respond_to_auth_challenge(
                ClientId=self.client_id,
                ChallengeName="DEVICE_SRP_AUTH",
                ChallengeResponses=auth_params,
            )
            if response_auth["ChallengeName"] != "DEVICE_PASSWORD_VERIFIER":
                raise RuntimeError(
                    f"Expected DEVICE_PASSWORD_VERIFIER challenge but got "
                    f"{response_init['ChallengeName']}."
                )

            challenge_params = response_auth["ChallengeParameters"]
            challenge_params["USER_ID_FOR_SRP"] = device_group_key + device_key
            cr = srp_helper.process_challenge(challenge_params, {"USERNAME": user_name})
            cr["USERNAME"] = user_name
            cr["DEVICE_KEY"] = device_key
            response_verifier = self.cognito_idp_client.respond_to_auth_challenge(
                ClientId=self.client_id,
                ChallengeName="DEVICE_PASSWORD_VERIFIER",
                ChallengeResponses=cr,
            )
            auth_tokens = response_verifier["AuthenticationResult"]
        except ClientError as err:
            logger.error(
                "Couldn't start client sign in for %s. Here's why: %s: %s",
                user_name,
                err.response["Error"]["Code"],
                err.response["Error"]["Message"],
            )
            raise
        else:
            return auth_tokens

• Para API obter detalhes, consulte a RespondToAuthChallengeReferência AWS SDK do Python (Boto3). API

Para obter uma lista completa de guias do AWS SDK desenvolvedor e exemplos de código, consulteUsando este serviço com um AWS SDK. Este tópico também inclui informações sobre como começar e detalhes sobre SDK versões anteriores.