mirror of https://github.com/morpheus65535/bazarr
83 lines
2.8 KiB
Python
83 lines
2.8 KiB
Python
# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
|
|
|
|
# Copyright (C) 2004-2007, 2009-2011 Nominum, Inc.
|
|
#
|
|
# Permission to use, copy, modify, and distribute this software and its
|
|
# documentation for any purpose with or without fee is hereby granted,
|
|
# provided that the above copyright notice and this permission notice
|
|
# appear in all copies.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
|
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
|
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
|
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
|
|
import base64
|
|
import enum
|
|
import struct
|
|
|
|
import dns.exception
|
|
import dns.immutable
|
|
import dns.dnssec
|
|
import dns.rdata
|
|
|
|
# wildcard import
|
|
__all__ = ["SEP", "REVOKE", "ZONE"] # noqa: F822
|
|
|
|
class Flag(enum.IntFlag):
|
|
SEP = 0x0001
|
|
REVOKE = 0x0080
|
|
ZONE = 0x0100
|
|
|
|
|
|
@dns.immutable.immutable
|
|
class DNSKEYBase(dns.rdata.Rdata):
|
|
|
|
"""Base class for rdata that is like a DNSKEY record"""
|
|
|
|
__slots__ = ['flags', 'protocol', 'algorithm', 'key']
|
|
|
|
def __init__(self, rdclass, rdtype, flags, protocol, algorithm, key):
|
|
super().__init__(rdclass, rdtype)
|
|
self.flags = self._as_uint16(flags)
|
|
self.protocol = self._as_uint8(protocol)
|
|
self.algorithm = dns.dnssec.Algorithm.make(algorithm)
|
|
self.key = self._as_bytes(key)
|
|
|
|
def to_text(self, origin=None, relativize=True, **kw):
|
|
return '%d %d %d %s' % (self.flags, self.protocol, self.algorithm,
|
|
dns.rdata._base64ify(self.key, **kw))
|
|
|
|
@classmethod
|
|
def from_text(cls, rdclass, rdtype, tok, origin=None, relativize=True,
|
|
relativize_to=None):
|
|
flags = tok.get_uint16()
|
|
protocol = tok.get_uint8()
|
|
algorithm = tok.get_string()
|
|
b64 = tok.concatenate_remaining_identifiers().encode()
|
|
key = base64.b64decode(b64)
|
|
return cls(rdclass, rdtype, flags, protocol, algorithm, key)
|
|
|
|
def _to_wire(self, file, compress=None, origin=None, canonicalize=False):
|
|
header = struct.pack("!HBB", self.flags, self.protocol, self.algorithm)
|
|
file.write(header)
|
|
file.write(self.key)
|
|
|
|
@classmethod
|
|
def from_wire_parser(cls, rdclass, rdtype, parser, origin=None):
|
|
header = parser.get_struct('!HBB')
|
|
key = parser.get_remaining()
|
|
return cls(rdclass, rdtype, header[0], header[1], header[2],
|
|
key)
|
|
|
|
### BEGIN generated Flag constants
|
|
|
|
SEP = Flag.SEP
|
|
REVOKE = Flag.REVOKE
|
|
ZONE = Flag.ZONE
|
|
|
|
### END generated Flag constants
|