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__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 : CERT.py

# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license

# Copyright (C) 2003-2007, 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 struct

import dns.dnssectypes
import dns.exception
import dns.immutable
import dns.rdata
import dns.tokenizer

_ctype_by_value = {
    1: "PKIX",
    2: "SPKI",
    3: "PGP",
    4: "IPKIX",
    5: "ISPKI",
    6: "IPGP",
    7: "ACPKIX",
    8: "IACPKIX",
    253: "URI",
    254: "OID",
}

_ctype_by_name = {
    "PKIX": 1,
    "SPKI": 2,
    "PGP": 3,
    "IPKIX": 4,
    "ISPKI": 5,
    "IPGP": 6,
    "ACPKIX": 7,
    "IACPKIX": 8,
    "URI": 253,
    "OID": 254,
}

def _ctype_from_text(what):
    v = _ctype_by_name.get(what)
    if v is not None:
        return v
    return int(what)

def _ctype_to_text(what):
    v = _ctype_by_value.get(what)
    if v is not None:
        return v
    return str(what)

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

# see RFC 4398

__slots__ = ["certificate_type", "key_tag", "algorithm", "certificate"]

def __init__(
        self, rdclass, rdtype, certificate_type, key_tag, algorithm, certificate
    ):
        super().__init__(rdclass, rdtype)
        self.certificate_type = self._as_uint16(certificate_type)
        self.key_tag = self._as_uint16(key_tag)
        self.algorithm = self._as_uint8(algorithm)
        self.certificate = self._as_bytes(certificate)

def to_text(self, origin=None, relativize=True, **kw):
        certificate_type = _ctype_to_text(self.certificate_type)
        return "%s %d %s %s" % (
            certificate_type,
            self.key_tag,
            dns.dnssectypes.Algorithm.to_text(self.algorithm),
            dns.rdata._base64ify(self.certificate, **kw),
        )

@classmethod
    def from_text(
        cls, rdclass, rdtype, tok, origin=None, relativize=True, relativize_to=None
    ):
        certificate_type = _ctype_from_text(tok.get_string())
        key_tag = tok.get_uint16()
        algorithm = dns.dnssectypes.Algorithm.from_text(tok.get_string())
        b64 = tok.concatenate_remaining_identifiers().encode()
        certificate = base64.b64decode(b64)
        return cls(rdclass, rdtype, certificate_type, key_tag, algorithm, certificate)

def _to_wire(self, file, compress=None, origin=None, canonicalize=False):
        prefix = struct.pack(
            "!HHB", self.certificate_type, self.key_tag, self.algorithm
        )
        file.write(prefix)
        file.write(self.certificate)

@classmethod
    def from_wire_parser(cls, rdclass, rdtype, parser, origin=None):
        (certificate_type, key_tag, algorithm) = parser.get_struct("!HHB")
        certificate = parser.get_remaining()
        return cls(rdclass, rdtype, certificate_type, key_tag, algorithm, certificate)

${this.title}

Code Editor : CERT.py