Server IP : 92.204.138.22 / Your IP : 18.118.119.135 Web Server : Apache System : Linux ns1009439.ip-92-204-138.us 4.18.0-553.8.1.el8_10.x86_64 #1 SMP Tue Jul 2 07:26:33 EDT 2024 x86_64 User : internationaljou ( 1019) PHP Version : 7.4.33 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /proc/self/root/lib64/python2.7/site-packages/dns/rdtypes/ |
Upload File : |
# Copyright (C) 2010, 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 struct import dns.rdata import dns.rdatatype class DSBase(dns.rdata.Rdata): """Base class for rdata that is like a DS record @ivar key_tag: the key tag @type key_tag: int @ivar algorithm: the algorithm @type algorithm: int @ivar digest_type: the digest type @type digest_type: int @ivar digest: the digest @type digest: int @see: draft-ietf-dnsext-delegation-signer-14.txt""" __slots__ = ['key_tag', 'algorithm', 'digest_type', 'digest'] def __init__(self, rdclass, rdtype, key_tag, algorithm, digest_type, digest): super(DSBase, self).__init__(rdclass, rdtype) self.key_tag = key_tag self.algorithm = algorithm self.digest_type = digest_type self.digest = digest def to_text(self, origin=None, relativize=True, **kw): return '%d %d %d %s' % (self.key_tag, self.algorithm, self.digest_type, dns.rdata._hexify(self.digest, chunksize=128)) def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True): key_tag = tok.get_uint16() algorithm = tok.get_uint8() digest_type = tok.get_uint8() chunks = [] while 1: t = tok.get().unescape() if t.is_eol_or_eof(): break if not t.is_identifier(): raise dns.exception.SyntaxError chunks.append(t.value) digest = ''.join(chunks) digest = digest.decode('hex_codec') return cls(rdclass, rdtype, key_tag, algorithm, digest_type, digest) from_text = classmethod(from_text) def to_wire(self, file, compress = None, origin = None): header = struct.pack("!HBB", self.key_tag, self.algorithm, self.digest_type) file.write(header) file.write(self.digest) def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None): header = struct.unpack("!HBB", wire[current : current + 4]) current += 4 rdlen -= 4 digest = wire[current : current + rdlen].unwrap() return cls(rdclass, rdtype, header[0], header[1], header[2], digest) from_wire = classmethod(from_wire) def _cmp(self, other): hs = struct.pack("!HBB", self.key_tag, self.algorithm, self.digest_type) ho = struct.pack("!HBB", other.key_tag, other.algorithm, other.digest_type) v = cmp(hs, ho) if v == 0: v = cmp(self.digest, other.digest) return v