From efb24333403a4e49c357f9a2a970091edd91fdde Mon Sep 17 00:00:00 2001 From: Polina Date: Thu, 2 Jul 2026 18:02:51 +0000 Subject: [PATCH] =?UTF-8?q?=D0=97=D0=B0=D0=B3=D1=80=D1=83=D0=B7=D0=B8?= =?UTF-8?q?=D1=82=D1=8C=20=D1=84=D0=B0=D0=B9=D0=BB=D1=8B=20=D0=B2=20=C2=AB?= =?UTF-8?q?venv/Lib/site-packages/dns/rdtypes/ANY=C2=BB?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../site-packages/dns/rdtypes/ANY/ZONEMD.py | 64 +++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 venv/Lib/site-packages/dns/rdtypes/ANY/ZONEMD.py diff --git a/venv/Lib/site-packages/dns/rdtypes/ANY/ZONEMD.py b/venv/Lib/site-packages/dns/rdtypes/ANY/ZONEMD.py new file mode 100644 index 0000000..acef4f2 --- /dev/null +++ b/venv/Lib/site-packages/dns/rdtypes/ANY/ZONEMD.py @@ -0,0 +1,64 @@ +# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license + +import binascii +import struct + +import dns.immutable +import dns.rdata +import dns.rdatatype +import dns.zonetypes + + +@dns.immutable.immutable +class ZONEMD(dns.rdata.Rdata): + """ZONEMD record""" + + # See RFC 8976 + + __slots__ = ["serial", "scheme", "hash_algorithm", "digest"] + + def __init__(self, rdclass, rdtype, serial, scheme, hash_algorithm, digest): + super().__init__(rdclass, rdtype) + self.serial = self._as_uint32(serial) + self.scheme = dns.zonetypes.DigestScheme.make(scheme) + self.hash_algorithm = dns.zonetypes.DigestHashAlgorithm.make(hash_algorithm) + self.digest = self._as_bytes(digest) + + if self.scheme == 0: # reserved, RFC 8976 Sec. 5.2 + raise ValueError("scheme 0 is reserved") + if self.hash_algorithm == 0: # reserved, RFC 8976 Sec. 5.3 + raise ValueError("hash_algorithm 0 is reserved") + + hasher = dns.zonetypes._digest_hashers.get(self.hash_algorithm) + if hasher and hasher().digest_size != len(self.digest): + raise ValueError("digest length inconsistent with hash algorithm") + + def to_text(self, origin=None, relativize=True, **kw): + kw = kw.copy() + chunksize = kw.pop("chunksize", 128) + digest = dns.rdata._hexify( + self.digest, chunksize=chunksize, **kw # pyright: ignore + ) + return f"{self.serial} {self.scheme} {self.hash_algorithm} {digest}" + + @classmethod + def from_text( + cls, rdclass, rdtype, tok, origin=None, relativize=True, relativize_to=None + ): + serial = tok.get_uint32() + scheme = tok.get_uint8() + hash_algorithm = tok.get_uint8() + digest = tok.concatenate_remaining_identifiers().encode() + digest = binascii.unhexlify(digest) + return cls(rdclass, rdtype, serial, scheme, hash_algorithm, digest) + + def _to_wire(self, file, compress=None, origin=None, canonicalize=False): + header = struct.pack("!IBB", self.serial, self.scheme, self.hash_algorithm) + file.write(header) + file.write(self.digest) + + @classmethod + def from_wire_parser(cls, rdclass, rdtype, parser, origin=None): + header = parser.get_struct("!IBB") + digest = parser.get_remaining() + return cls(rdclass, rdtype, header[0], header[1], header[2], digest)