from enum import IntFlag
from typing import List, Optional, Union
from .operation import Operation
from .utils import check_ed25519_public_key
from ..keypair import Keypair
from ..signer import Signer
from ..strkey import StrKey
from ..utils import pack_xdr_array, unpack_xdr_array
from ..xdr import Xdr
__all__ = ["Flag", "SetOptions"]
[文档]class Flag(IntFlag):
"""Indicates which flags to set. For details about the flags,
please refer to the `accounts doc <https://www.stellar.org/developers/guides/concepts/accounts.html>`_.
The bit mask integer adds onto the existing flags of the account.
"""
AUTHORIZATION_REQUIRED = 1
AUTHORIZATION_REVOCABLE = 2
AUTHORIZATION_IMMUTABLE = 4
AUTHORIZATION_CLAWBACK_ENABLED = 8
[文档]class SetOptions(Operation):
"""The :class:`SetOptions` object, which represents a SetOptions operation
on Stellar's network.
This operation sets the options for an account.
For more information on the signing options, please refer to the `multi-sig
doc <https://www.stellar.org/developers/guides/concepts/multi-sig.html>`_.
When updating signers or other thresholds, the threshold of this operation
is high.
Threshold: Medium or High
:param inflation_dest: Account of the inflation destination.
:param clear_flags: Indicates which flags to clear. For details about the flags,
please refer to the `accounts doc <https://www.stellar.org/developers/guides/concepts/accounts.html>`_.
The `bit mask <https://en.wikipedia.org/wiki/Bit_field>`_ integer subtracts from the existing flags of the account.
This allows for setting specific bits without knowledge of existing flags, you can also use
:class:`stellar_sdk.operation.set_options.Flag`
- AUTHORIZATION_REQUIRED = 1
- AUTHORIZATION_REVOCABLE = 2
- AUTHORIZATION_IMMUTABLE = 4
- AUTHORIZATION_CLAWBACK_ENABLED = 8
:param set_flags: Indicates which flags to set. For details about the flags,
please refer to the `accounts doc <https://www.stellar.org/developers/guides/concepts/accounts.html>`_.
The bit mask integer adds onto the existing flags of the account.
This allows for setting specific bits without knowledge of existing flags, you can also use
:class:`stellar_sdk.operation.set_options.Flag`
- AUTHORIZATION_REQUIRED = 1
- AUTHORIZATION_REVOCABLE = 2
- AUTHORIZATION_IMMUTABLE = 4
- AUTHORIZATION_CLAWBACK_ENABLED = 8
:param master_weight: A number from 0-255 (inclusive) representing the weight of the master key.
If the weight of the master key is updated to 0, it is effectively disabled.
:param low_threshold: A number from 0-255 (inclusive) representing the threshold this account sets on all
operations it performs that have `a low threshold <https://www.stellar.org/developers/guides/concepts/multi-sig.html>`_.
:param med_threshold: A number from 0-255 (inclusive) representing the threshold this account sets on all
operations it performs that have `a medium threshold <https://www.stellar.org/developers/guides/concepts/multi-sig.html>`_.
:param high_threshold: A number from 0-255 (inclusive) representing the threshold this account sets on all
operations it performs that have `a high threshold <https://www.stellar.org/developers/guides/concepts/multi-sig.html>`_.
:param home_domain: sets the home domain used for
reverse `federation <https://www.stellar.org/developers/guides/concepts/federation.html>`_ lookup.
:param signer: Add, update, or remove a signer from the account.
:param source: The source account (defaults to transaction source).
"""
def __init__(
self,
inflation_dest: str = None,
clear_flags: Union[int, Flag] = None,
set_flags: Union[int, Flag] = None,
master_weight: int = None,
low_threshold: int = None,
med_threshold: int = None,
high_threshold: int = None,
signer: Signer = None,
home_domain: str = None,
source: str = None,
) -> None:
super().__init__(source)
if inflation_dest is not None:
check_ed25519_public_key(inflation_dest)
if isinstance(set_flags, Flag):
set_flags = set_flags.value
if isinstance(clear_flags, Flag):
clear_flags = clear_flags.value
self.inflation_dest: str = inflation_dest
self.clear_flags: int = clear_flags
self.set_flags: int = set_flags
self.master_weight: int = master_weight
self.low_threshold: int = low_threshold
self.med_threshold: int = med_threshold
self.high_threshold: int = high_threshold
self.home_domain: str = home_domain
self.signer: Optional[Signer] = signer
@classmethod
def type_code(cls) -> int:
return Xdr.const.SET_OPTIONS
def _to_operation_body(self) -> Xdr.nullclass:
if self.inflation_dest is not None:
inflation_dest = [
Keypair.from_public_key(self.inflation_dest).xdr_account_id()
]
else:
inflation_dest = []
home_domain: List[bytes] = []
if self.home_domain:
home_domain = pack_xdr_array(bytes(self.home_domain, encoding="utf-8"))
clear_flags = pack_xdr_array(self.clear_flags)
set_flags = pack_xdr_array(self.set_flags)
master_weight = pack_xdr_array(self.master_weight)
low_threshold = pack_xdr_array(self.low_threshold)
med_threshold = pack_xdr_array(self.med_threshold)
high_threshold = pack_xdr_array(self.high_threshold)
signer: List[Xdr.types.Signer] = []
if self.signer:
signer = [self.signer.to_xdr_object()]
set_options_op = Xdr.types.SetOptionsOp(
inflation_dest,
clear_flags,
set_flags,
master_weight,
low_threshold,
med_threshold,
high_threshold,
home_domain,
signer,
)
body = Xdr.nullclass()
body.type = Xdr.const.SET_OPTIONS
body.setOptionsOp = set_options_op
return body
[文档] @classmethod
def from_xdr_object(cls, operation_xdr_object) -> "SetOptions":
"""Creates a :class:`SetOptions` object from an XDR Operation
object.
"""
source = Operation.get_source_from_xdr_obj(operation_xdr_object)
inflation_dest = None
if operation_xdr_object.body.setOptionsOp.inflationDest:
inflation_dest = StrKey.encode_ed25519_public_key(
operation_xdr_object.body.setOptionsOp.inflationDest[0].ed25519
)
clear_flags = unpack_xdr_array(
operation_xdr_object.body.setOptionsOp.clearFlags
) # list
set_flags = unpack_xdr_array(operation_xdr_object.body.setOptionsOp.setFlags)
master_weight = unpack_xdr_array(
operation_xdr_object.body.setOptionsOp.masterWeight
)
low_threshold = unpack_xdr_array(
operation_xdr_object.body.setOptionsOp.lowThreshold
)
med_threshold = unpack_xdr_array(
operation_xdr_object.body.setOptionsOp.medThreshold
)
high_threshold = unpack_xdr_array(
operation_xdr_object.body.setOptionsOp.highThreshold
)
home_domain = unpack_xdr_array(
operation_xdr_object.body.setOptionsOp.homeDomain
)
if home_domain:
home_domain = home_domain.decode("utf-8")
signer = None
signer_xdr_object = operation_xdr_object.body.setOptionsOp.signer
if signer_xdr_object:
signer = Signer.from_xdr_object(signer_xdr_object[0])
op = cls(
inflation_dest=inflation_dest,
clear_flags=clear_flags,
set_flags=set_flags,
master_weight=master_weight,
low_threshold=low_threshold,
med_threshold=med_threshold,
high_threshold=high_threshold,
home_domain=home_domain,
signer=signer,
source=source,
)
op._source_muxed = Operation.get_source_muxed_from_xdr_obj(operation_xdr_object)
return op