# This is an automatically generated file.
# DO NOT EDIT or your changes may be overwritten
from __future__ import annotations
import base64
import json
from xdrlib3 import Packer, Unpacker
from .base import DEFAULT_XDR_MAX_DEPTH, Opaque
__all__ = ["HmacSha256Mac"]
[docs]
class HmacSha256Mac:
"""
XDR Source Code::
struct HmacSha256Mac
{
opaque mac[32];
};
"""
def __init__(
self,
mac: bytes,
) -> None:
_expect_length = 32
if mac and len(mac) != _expect_length:
raise ValueError(
f"The length of `mac` should be {_expect_length}, but got {len(mac)}."
)
self.mac = mac
def pack(self, packer: Packer) -> None:
Opaque(self.mac, 32, True).pack(packer)
@classmethod
def unpack(
cls, unpacker: Unpacker, depth_limit: int = DEFAULT_XDR_MAX_DEPTH
) -> HmacSha256Mac:
if depth_limit <= 0:
raise ValueError("Maximum decoding depth reached")
mac = Opaque.unpack(unpacker, 32, True)
return cls(
mac=mac,
)
def to_xdr_bytes(self) -> bytes:
packer = Packer()
self.pack(packer)
return packer.get_buffer()
@classmethod
def from_xdr_bytes(cls, xdr: bytes) -> HmacSha256Mac:
unpacker = Unpacker(xdr)
result = cls.unpack(unpacker)
remaining = len(xdr) - unpacker.get_position()
if remaining != 0:
raise ValueError(f"Unexpected trailing {remaining} bytes in XDR data")
return result
def to_xdr(self) -> str:
xdr_bytes = self.to_xdr_bytes()
return base64.b64encode(xdr_bytes).decode()
@classmethod
def from_xdr(cls, xdr: str) -> HmacSha256Mac:
xdr_bytes = base64.b64decode(xdr.encode())
return cls.from_xdr_bytes(xdr_bytes)
def to_json(self) -> str:
return json.dumps(self.to_json_dict())
@classmethod
def from_json(cls, json_str: str) -> HmacSha256Mac:
return cls.from_json_dict(json.loads(json_str))
def to_json_dict(self) -> dict:
return {
"mac": Opaque.to_json_dict(self.mac),
}
@classmethod
def from_json_dict(cls, json_dict: dict) -> HmacSha256Mac:
mac = Opaque.from_json_dict(json_dict["mac"])
return cls(
mac=mac,
)
def __hash__(self):
return hash((self.mac,))
def __eq__(self, other: object):
if not isinstance(other, self.__class__):
return NotImplemented
return self.mac == other.mac
def __repr__(self):
out = [
f"mac={self.mac}",
]
return f"<HmacSha256Mac [{', '.join(out)}]>"