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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
AFSDB.py	1.62 KB	-rw-r--r--
AMTRELAY.py	3.3 KB	-rw-r--r--
AVC.py	1 KB	-rw-r--r--
CAA.py	2.45 KB	-rw-r--r--
CDNSKEY.py	1.2 KB	-rw-r--r--
CDS.py	1.14 KB	-rw-r--r--
CERT.py	3.45 KB	-rw-r--r--
CNAME.py	1.18 KB	-rw-r--r--
CSYNC.py	2.38 KB	-rw-r--r--
DLV.py	986 B	-rw-r--r--
DNAME.py	1.12 KB	-rw-r--r--
DNSKEY.py	1.19 KB	-rw-r--r--
DS.py	995 B	-rw-r--r--
EUI48.py	1.12 KB	-rw-r--r--
EUI64.py	1.13 KB	-rw-r--r--
GPOS.py	4.33 KB	-rw-r--r--
HINFO.py	2.2 KB	-rw-r--r--
HIP.py	3.15 KB	-rw-r--r--
ISDN.py	2.65 KB	-rw-r--r--
L32.py	1.26 KB	-rw-r--r--
L64.py	1.55 KB	-rw-r--r--
LOC.py	11.74 KB	-rw-r--r--
LP.py	1.31 KB	-rw-r--r--
MX.py	995 B	-rw-r--r--
NID.py	1.51 KB	-rw-r--r--
NINFO.py	1.02 KB	-rw-r--r--
NS.py	995 B	-rw-r--r--
NSEC.py	2.42 KB	-rw-r--r--
NSEC3.py	4.23 KB	-rw-r--r--
NSEC3PARAM.py	2.57 KB	-rw-r--r--
OPENPGPKEY.py	1.81 KB	-rw-r--r--
OPT.py	2.5 KB	-rw-r--r--
PTR.py	997 B	-rw-r--r--
RP.py	2.13 KB	-rw-r--r--
RRSIG.py	4.81 KB	-rw-r--r--
RT.py	1013 B	-rw-r--r--
SMIMEA.py	222 B	-rw-r--r--
SOA.py	3.07 KB	-rw-r--r--
SPF.py	1022 B	-rw-r--r--
SSHFP.py	2.47 KB	-rw-r--r--
TKEY.py	4.82 KB	-rw-r--r--
TLSA.py	218 B	-rw-r--r--
TSIG.py	4.64 KB	-rw-r--r--
TXT.py	1000 B	-rw-r--r--
URI.py	2.85 KB	-rw-r--r--
X25.py	1.9 KB	-rw-r--r--
ZONEMD.py	2.34 KB	-rw-r--r--
__init__.py	1.46 KB	-rw-r--r--

Code Editor : RRSIG.py

# 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 calendar
import struct
import time

import dns.dnssectypes
import dns.exception
import dns.immutable
import dns.rdata
import dns.rdatatype

class BadSigTime(dns.exception.DNSException):
    """Time in DNS SIG or RRSIG resource record cannot be parsed."""

def sigtime_to_posixtime(what):
    if len(what) <= 10 and what.isdigit():
        return int(what)
    if len(what) != 14:
        raise BadSigTime
    year = int(what[0:4])
    month = int(what[4:6])
    day = int(what[6:8])
    hour = int(what[8:10])
    minute = int(what[10:12])
    second = int(what[12:14])
    return calendar.timegm((year, month, day, hour, minute, second, 0, 0, 0))

def posixtime_to_sigtime(what):
    return time.strftime("%Y%m%d%H%M%S", time.gmtime(what))

@dns.immutable.immutable
class RRSIG(dns.rdata.Rdata):
    """RRSIG record"""

__slots__ = [
        "type_covered",
        "algorithm",
        "labels",
        "original_ttl",
        "expiration",
        "inception",
        "key_tag",
        "signer",
        "signature",
    ]

def __init__(
        self,
        rdclass,
        rdtype,
        type_covered,
        algorithm,
        labels,
        original_ttl,
        expiration,
        inception,
        key_tag,
        signer,
        signature,
    ):
        super().__init__(rdclass, rdtype)
        self.type_covered = self._as_rdatatype(type_covered)
        self.algorithm = dns.dnssectypes.Algorithm.make(algorithm)
        self.labels = self._as_uint8(labels)
        self.original_ttl = self._as_ttl(original_ttl)
        self.expiration = self._as_uint32(expiration)
        self.inception = self._as_uint32(inception)
        self.key_tag = self._as_uint16(key_tag)
        self.signer = self._as_name(signer)
        self.signature = self._as_bytes(signature)

def covers(self):
        return self.type_covered

def to_text(self, origin=None, relativize=True, **kw):
        return "%s %d %d %d %s %s %d %s %s" % (
            dns.rdatatype.to_text(self.type_covered),
            self.algorithm,
            self.labels,
            self.original_ttl,
            posixtime_to_sigtime(self.expiration),
            posixtime_to_sigtime(self.inception),
            self.key_tag,
            self.signer.choose_relativity(origin, relativize),
            dns.rdata._base64ify(self.signature, **kw),
        )

@classmethod
    def from_text(
        cls, rdclass, rdtype, tok, origin=None, relativize=True, relativize_to=None
    ):
        type_covered = dns.rdatatype.from_text(tok.get_string())
        algorithm = dns.dnssectypes.Algorithm.from_text(tok.get_string())
        labels = tok.get_int()
        original_ttl = tok.get_ttl()
        expiration = sigtime_to_posixtime(tok.get_string())
        inception = sigtime_to_posixtime(tok.get_string())
        key_tag = tok.get_int()
        signer = tok.get_name(origin, relativize, relativize_to)
        b64 = tok.concatenate_remaining_identifiers().encode()
        signature = base64.b64decode(b64)
        return cls(
            rdclass,
            rdtype,
            type_covered,
            algorithm,
            labels,
            original_ttl,
            expiration,
            inception,
            key_tag,
            signer,
            signature,
        )

def _to_wire(self, file, compress=None, origin=None, canonicalize=False):
        header = struct.pack(
            "!HBBIIIH",
            self.type_covered,
            self.algorithm,
            self.labels,
            self.original_ttl,
            self.expiration,
            self.inception,
            self.key_tag,
        )
        file.write(header)
        self.signer.to_wire(file, None, origin, canonicalize)
        file.write(self.signature)

@classmethod
    def from_wire_parser(cls, rdclass, rdtype, parser, origin=None):
        header = parser.get_struct("!HBBIIIH")
        signer = parser.get_name(origin)
        signature = parser.get_remaining()
        return cls(rdclass, rdtype, *header, signer, signature)

${this.title}

Code Editor : RRSIG.py