mirror of
https://gitlab.sectorq.eu/jaydee/omv_backup.git
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282 lines
7.7 KiB
Python
Executable File
282 lines
7.7 KiB
Python
Executable File
# This file is dual licensed under the terms of the Apache License, Version
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# 2.0, and the BSD License. See the LICENSE file in the root of this repository
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# for complete details.
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from __future__ import annotations
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import abc
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import ipaddress
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import typing
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from email.utils import parseaddr
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from cryptography.x509.name import Name
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from cryptography.x509.oid import ObjectIdentifier
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_IPAddressTypes = typing.Union[
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ipaddress.IPv4Address,
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ipaddress.IPv6Address,
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ipaddress.IPv4Network,
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ipaddress.IPv6Network,
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]
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class UnsupportedGeneralNameType(Exception):
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pass
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class GeneralName(metaclass=abc.ABCMeta):
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@property
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@abc.abstractmethod
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def value(self) -> typing.Any:
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"""
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Return the value of the object
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"""
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class RFC822Name(GeneralName):
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def __init__(self, value: str) -> None:
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if isinstance(value, str):
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try:
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value.encode("ascii")
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except UnicodeEncodeError:
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raise ValueError(
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"RFC822Name values should be passed as an A-label string. "
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"This means unicode characters should be encoded via "
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"a library like idna."
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)
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else:
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raise TypeError("value must be string")
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name, address = parseaddr(value)
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if name or not address:
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# parseaddr has found a name (e.g. Name <email>) or the entire
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# value is an empty string.
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raise ValueError("Invalid rfc822name value")
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self._value = value
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@property
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def value(self) -> str:
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return self._value
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@classmethod
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def _init_without_validation(cls, value: str) -> RFC822Name:
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instance = cls.__new__(cls)
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instance._value = value
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return instance
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def __repr__(self) -> str:
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return f"<RFC822Name(value={self.value!r})>"
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def __eq__(self, other: object) -> bool:
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if not isinstance(other, RFC822Name):
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return NotImplemented
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return self.value == other.value
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def __hash__(self) -> int:
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return hash(self.value)
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class DNSName(GeneralName):
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def __init__(self, value: str) -> None:
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if isinstance(value, str):
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try:
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value.encode("ascii")
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except UnicodeEncodeError:
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raise ValueError(
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"DNSName values should be passed as an A-label string. "
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"This means unicode characters should be encoded via "
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"a library like idna."
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)
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else:
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raise TypeError("value must be string")
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self._value = value
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@property
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def value(self) -> str:
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return self._value
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@classmethod
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def _init_without_validation(cls, value: str) -> DNSName:
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instance = cls.__new__(cls)
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instance._value = value
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return instance
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def __repr__(self) -> str:
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return f"<DNSName(value={self.value!r})>"
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def __eq__(self, other: object) -> bool:
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if not isinstance(other, DNSName):
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return NotImplemented
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return self.value == other.value
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def __hash__(self) -> int:
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return hash(self.value)
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class UniformResourceIdentifier(GeneralName):
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def __init__(self, value: str) -> None:
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if isinstance(value, str):
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try:
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value.encode("ascii")
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except UnicodeEncodeError:
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raise ValueError(
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"URI values should be passed as an A-label string. "
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"This means unicode characters should be encoded via "
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"a library like idna."
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)
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else:
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raise TypeError("value must be string")
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self._value = value
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@property
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def value(self) -> str:
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return self._value
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@classmethod
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def _init_without_validation(cls, value: str) -> UniformResourceIdentifier:
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instance = cls.__new__(cls)
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instance._value = value
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return instance
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def __repr__(self) -> str:
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return f"<UniformResourceIdentifier(value={self.value!r})>"
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def __eq__(self, other: object) -> bool:
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if not isinstance(other, UniformResourceIdentifier):
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return NotImplemented
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return self.value == other.value
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def __hash__(self) -> int:
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return hash(self.value)
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class DirectoryName(GeneralName):
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def __init__(self, value: Name) -> None:
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if not isinstance(value, Name):
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raise TypeError("value must be a Name")
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self._value = value
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@property
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def value(self) -> Name:
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return self._value
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def __repr__(self) -> str:
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return f"<DirectoryName(value={self.value})>"
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def __eq__(self, other: object) -> bool:
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if not isinstance(other, DirectoryName):
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return NotImplemented
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return self.value == other.value
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def __hash__(self) -> int:
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return hash(self.value)
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class RegisteredID(GeneralName):
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def __init__(self, value: ObjectIdentifier) -> None:
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if not isinstance(value, ObjectIdentifier):
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raise TypeError("value must be an ObjectIdentifier")
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self._value = value
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@property
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def value(self) -> ObjectIdentifier:
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return self._value
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def __repr__(self) -> str:
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return f"<RegisteredID(value={self.value})>"
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def __eq__(self, other: object) -> bool:
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if not isinstance(other, RegisteredID):
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return NotImplemented
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return self.value == other.value
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def __hash__(self) -> int:
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return hash(self.value)
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class IPAddress(GeneralName):
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def __init__(self, value: _IPAddressTypes) -> None:
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if not isinstance(
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value,
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(
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ipaddress.IPv4Address,
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ipaddress.IPv6Address,
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ipaddress.IPv4Network,
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ipaddress.IPv6Network,
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),
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):
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raise TypeError(
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"value must be an instance of ipaddress.IPv4Address, "
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"ipaddress.IPv6Address, ipaddress.IPv4Network, or "
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"ipaddress.IPv6Network"
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)
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self._value = value
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@property
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def value(self) -> _IPAddressTypes:
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return self._value
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def _packed(self) -> bytes:
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if isinstance(
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self.value, (ipaddress.IPv4Address, ipaddress.IPv6Address)
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):
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return self.value.packed
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else:
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return (
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self.value.network_address.packed + self.value.netmask.packed
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)
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def __repr__(self) -> str:
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return f"<IPAddress(value={self.value})>"
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def __eq__(self, other: object) -> bool:
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if not isinstance(other, IPAddress):
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return NotImplemented
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return self.value == other.value
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def __hash__(self) -> int:
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return hash(self.value)
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class OtherName(GeneralName):
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def __init__(self, type_id: ObjectIdentifier, value: bytes) -> None:
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if not isinstance(type_id, ObjectIdentifier):
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raise TypeError("type_id must be an ObjectIdentifier")
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if not isinstance(value, bytes):
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raise TypeError("value must be a binary string")
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self._type_id = type_id
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self._value = value
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@property
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def type_id(self) -> ObjectIdentifier:
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return self._type_id
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@property
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def value(self) -> bytes:
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return self._value
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def __repr__(self) -> str:
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return f"<OtherName(type_id={self.type_id}, value={self.value!r})>"
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def __eq__(self, other: object) -> bool:
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if not isinstance(other, OtherName):
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return NotImplemented
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return self.type_id == other.type_id and self.value == other.value
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def __hash__(self) -> int:
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return hash((self.type_id, self.value))
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