Source code for stellar_sdk.operation.clawback

from decimal import Decimal
from typing import Union, Optional

from .operation import Operation
from .utils import check_amount, check_ed25519_public_key
from .. import xdr as stellar_xdr
from ..asset import Asset
from ..keypair import Keypair
from ..utils import parse_ed25519_account_id_from_muxed_account_xdr_object

[docs]class Clawback(Operation): """The :class:`Clawback` object, which represents a Clawback operation on Stellar's network. Claws back an amount of an asset from an account. Threshold: Medium :param asset: The asset being clawed back. :param from_: The public key of the account to claw back from. :param amount: The amount of the asset to claw 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 def __init__( self, asset: Asset, from_: str, amount: Union[str, Decimal], source: str = None, ) -> None: super().__init__(source) check_amount(amount) check_ed25519_public_key(from_) self._from_: str = from_ self._from__muxed: Optional[stellar_xdr.MuxedAccount] = None self.asset: Asset = asset self.amount: Union[str, Decimal] = amount @property def from_(self) -> str: return self._from_ @from_.setter def from_(self, value: str): check_ed25519_public_key(value) self._from__muxed = None self._from_ = value def _to_operation_body(self) -> stellar_xdr.OperationBody: asset = self.asset.to_xdr_object() if self._from__muxed is not None: from_ = self._from__muxed else: from_ = Keypair.from_public_key(self._from_).xdr_muxed_account() amount = Operation.to_xdr_amount(self.amount) clawback_op = stellar_xdr.ClawbackOp(asset, from_, stellar_xdr.Int64(amount)) body = stellar_xdr.OperationBody( type=self._XDR_OPERATION_TYPE, clawback_op=clawback_op ) return body
[docs] @classmethod def from_xdr_object(cls, xdr_object: stellar_xdr.Operation) -> "Clawback": """Creates a :class:`Clawback` object from an XDR Operation object. """ source = Operation.get_source_from_xdr_obj(xdr_object) assert xdr_object.body.clawback_op is not None asset = Asset.from_xdr_object(xdr_object.body.clawback_op.asset) from_ = parse_ed25519_account_id_from_muxed_account_xdr_object( xdr_object.body.clawback_op.from_ ) amount = Operation.from_xdr_amount(xdr_object.body.clawback_op.amount.int64) op = cls(source=source, from_=from_, asset=asset, amount=amount) op._from__muxed = xdr_object.body.clawback_op.from_ op._source_muxed = Operation.get_source_muxed_from_xdr_obj(xdr_object) return op
def __str__(self): return f"<Clawback [asset={self.asset}, from_={self.from_}, amount={self.amount}, source={self.source}]>"