import base64
import binascii
from .operation import Operation
from .. import xdr as stellar_xdr
[docs]class ClawbackClaimableBalance(Operation):
"""The :class:`ClawbackClaimableBalance` object, which represents a ClawbackClaimableBalance operation on
Stellar's network.
Claws back a claimable balance
Threshold: Medium
:param balance_id: The claimable balance ID to be clawed back.
:param source: The source account for the operation. Defaults to the
transaction's source account.
"""
_XDR_OPERATION_TYPE: stellar_xdr.OperationType = (
stellar_xdr.OperationType.CLAWBACK_CLAIMABLE_BALANCE
)
def __init__(self, balance_id: str, source: str = None) -> None:
super().__init__(source)
self.balance_id: str = balance_id
def _to_operation_body(self) -> stellar_xdr.OperationBody:
balance_id_bytes: bytes = binascii.unhexlify(self.balance_id)
balance_id = stellar_xdr.ClaimableBalanceID.from_xdr_bytes(balance_id_bytes)
clawback_claimable_balance_op = stellar_xdr.ClawbackClaimableBalanceOp(
balance_id=balance_id
)
body = stellar_xdr.OperationBody(
type=self._XDR_OPERATION_TYPE,
clawback_claimable_balance_op=clawback_claimable_balance_op,
)
return body
[docs] @classmethod
def from_xdr_object(
cls, xdr_object: stellar_xdr.Operation
) -> "ClawbackClaimableBalance":
"""Creates a :class:`ClawbackClaimableBalance` object from an XDR Operation
object.
"""
source = Operation.get_source_from_xdr_obj(xdr_object)
assert xdr_object.body.clawback_claimable_balance_op is not None
balance_id_bytes = base64.b64decode(
xdr_object.body.clawback_claimable_balance_op.to_xdr()
)
balance_id = binascii.hexlify(balance_id_bytes).decode()
op = cls(balance_id=balance_id, source=source)
op._source_muxed = Operation.get_source_muxed_from_xdr_obj(xdr_object)
return op
def __str__(self):
return f"<ClawbackClaimableBalance [balance_id={self.balance_id}, source={self.source}]>"