return ((DcerpcPipeHandle) this).pipe.getServer();
        }
        return null;
    }

    /**
     * Gets the principal associated with this handle
     * @return the principal or null if not authenticated
     */
    public Principal getPrincipal() {
        if (this instanceof DcerpcPipeHandle) {
            return ((DcerpcPipeHandle) this).pipe.getPrincipal();
        }

                }
            }
        }
    }
}
```

## Media types adicionais para o retorno principal { #additional-media-types-for-the-main-response }

Você pode utilizar o mesmo parâmetro `responses` para adicionar diferentes media types para o mesmo retorno principal.

{
   "Version":"2012-10-17",
   "Id":"PutObjectPolicy1",
   "Statement":[{
         "Sid":"DenyObjectsWithInvalidSSEKMS",
         "Effect":"Deny",
         "Principal":"*",
         "Action":"s3:PutObject",
         "Resource":"arn:aws:s3:::multi-key-poc/*",
         "Condition":{
            "StringNotEquals":{
               "s3:x-amz-server-side-encryption-aws-kms-key-id":"minio-default-key"
            }
         }
      }
   ]

bucketPolicyTemplate := `{"Version":"2012-10-17","Statement":[{"Sid":"","Effect":"Allow","Principal":{"AWS":["*"]},"Action":["s3:GetBucketLocation","s3:ListBucket"],"Resource":["arn:aws:s3:::%s"]},{"Sid":"","Effect":"Allow","Principal":{"AWS":["*"]},"Action":["s3:GetObject"],"Resource":["arn:aws:s3:::%s/this*"]}]}`

	bucketPolicyTemplateWithoutVersion := `{"Version":"","Statement":[{"Sid":"","Effect":"Allow","Principal":{"AWS":["*"]},"Action":["s3:GetBucketLocation","s3:ListBucket"],"Resource":["...

{
   "Version":"2012-10-17",
   "Id":"PutObjectPolicy",
   "Statement":[{
         "Sid":"DenyObjectsThatAreNotSSEKMS",
         "Effect":"Deny",
         "Principal":"*",
         "Action":"s3:PutObject",
         "Resource":"arn:aws:s3:::multi-key-poc/*",
         "Condition":{
            "Null":{
               "s3:x-amz-server-side-encryption-aws-kms-key-id":"true"
            }
         }
      }
   ]

     */
    @Size(max = 1000)
    public String ldapProviderUrl;

    /**
     * LDAP security principal for binding to the LDAP server.
     * Used for authenticating with the LDAP server.
     */
    @Size(max = 1000)
    public String ldapSecurityPrincipal;

    /**
     * LDAP admin security principal for administrative operations.
     * Used for admin-level operations on the LDAP server.
     */

    val cipherSuite: CipherSuite = handshake.cipherSuite()
    val peerCertificates: List<Certificate> = handshake.peerCertificates()
    val peerPrincipal: Principal? = handshake.peerPrincipal()
    val localCertificates: List<Certificate> = handshake.localCertificates()
    val localPrincipal: Principal? = handshake.localPrincipal()
  }

  @Test @Disabled
  fun headers() {
    var headers: Headers = Headers.of("", "")

///

## Lee primero el Tutorial { #read-the-tutorial-first }

Las siguientes secciones asumen que ya leíste el [Tutorial - Guía del Usuario: Seguridad](../../tutorial/security/index.md){.internal-link target=_blank} principal.

var errSftpPublicKeyWithoutCert = errors.New("public key authentication without certificate is not accepted")

// error returned in SFTP when user used certificate which does not contain principal(s)
var errSftpCertWithoutPrincipals = errors.New("certificates without principal(s) are not accepted")

// error returned when group name contains reserved characters

Te mostraré algunos de los conceptos principales que probablemente deberías tener en cuenta al desplegar una aplicación **FastAPI** (aunque la mayoría se aplica a cualquier otro tipo de aplicación web).