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Name	Size	Permission
AFSDB.py	1.88 KB	-rw-r--r--
AFSDB.pyc	1.39 KB	-rw-r--r--
AVC.py	1 KB	-rw-r--r--
AVC.pyc	553 B	-rw-r--r--
CAA.py	2.64 KB	-rw-r--r--
CAA.pyc	2.64 KB	-rw-r--r--
CDNSKEY.py	1.08 KB	-rw-r--r--
CDNSKEY.pyc	611 B	-rw-r--r--
CDS.py	952 B	-rw-r--r--
CDS.pyc	462 B	-rw-r--r--
CERT.py	3.93 KB	-rw-r--r--
CERT.pyc	3.85 KB	-rw-r--r--
CNAME.py	1.13 KB	-rw-r--r--
CNAME.pyc	675 B	-rw-r--r--
CSYNC.py	4.61 KB	-rw-r--r--
CSYNC.pyc	4 KB	-rw-r--r--
DLV.py	941 B	-rw-r--r--
DLV.pyc	462 B	-rw-r--r--
DNAME.py	1.03 KB	-rw-r--r--
DNAME.pyc	698 B	-rw-r--r--
DNSKEY.py	1.08 KB	-rw-r--r--
DNSKEY.pyc	607 B	-rw-r--r--
DS.py	950 B	-rw-r--r--
DS.pyc	458 B	-rw-r--r--
EUI48.py	1.1 KB	-rw-r--r--
EUI48.pyc	657 B	-rw-r--r--
EUI64.py	1.11 KB	-rw-r--r--
EUI64.pyc	657 B	-rw-r--r--
GPOS.py	5.32 KB	-rw-r--r--
GPOS.pyc	5.33 KB	-rw-r--r--
HINFO.py	2.69 KB	-rw-r--r--
HINFO.pyc	2.63 KB	-rw-r--r--
HIP.py	4.12 KB	-rw-r--r--
HIP.pyc	4.04 KB	-rw-r--r--
ISDN.py	3.27 KB	-rw-r--r--
ISDN.pyc	2.91 KB	-rw-r--r--
LOC.py	12.06 KB	-rw-r--r--
LOC.pyc	10.15 KB	-rw-r--r--
MX.py	950 B	-rw-r--r--
MX.pyc	458 B	-rw-r--r--
NS.py	950 B	-rw-r--r--
NS.pyc	458 B	-rw-r--r--
NSEC.py	4.66 KB	-rw-r--r--
NSEC.pyc	4.11 KB	-rw-r--r--
NSEC3.py	7.04 KB	-rw-r--r--
NSEC3.pyc	5.51 KB	-rw-r--r--
NSEC3PARAM.py	3.1 KB	-rw-r--r--
NSEC3PARAM.pyc	2.95 KB	-rw-r--r--
OPENPGPKEY.py	1.98 KB	-rw-r--r--
OPENPGPKEY.pyc	2.17 KB	-rw-r--r--
PTR.py	952 B	-rw-r--r--
PTR.pyc	462 B	-rw-r--r--
RP.py	3.08 KB	-rw-r--r--
RP.pyc	2.93 KB	-rw-r--r--
RRSIG.py	5.61 KB	-rw-r--r--
RRSIG.pyc	5.53 KB	-rw-r--r--
RT.py	968 B	-rw-r--r--
RT.pyc	476 B	-rw-r--r--
SOA.py	4.49 KB	-rw-r--r--
SOA.pyc	4.01 KB	-rw-r--r--
SPF.py	976 B	-rw-r--r--
SPF.pyc	485 B	-rw-r--r--
SSHFP.py	2.84 KB	-rw-r--r--
SSHFP.pyc	2.7 KB	-rw-r--r--
TLSA.py	2.96 KB	-rw-r--r--
TLSA.pyc	2.84 KB	-rw-r--r--
TXT.py	955 B	-rw-r--r--
TXT.pyc	465 B	-rw-r--r--
URI.py	2.91 KB	-rw-r--r--
URI.pyc	2.85 KB	-rw-r--r--
X25.py	2.14 KB	-rw-r--r--
X25.pyc	2.25 KB	-rw-r--r--
__init__.py	1.33 KB	-rw-r--r--
__init__.pyc	736 B	-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 struct
import base64

import dns.exception
import dns.dnssec
import dns.rdata
import dns.tokenizer

_ctype_by_value = {
    1: 'PKIX',
    2: 'SPKI',
    3: 'PGP',
    253: 'URI',
    254: 'OID',
}

_ctype_by_name = {
    'PKIX': 1,
    'SPKI': 2,
    'PGP': 3,
    '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)

class CERT(dns.rdata.Rdata):

"""CERT record

@ivar certificate_type: certificate type
    @type certificate_type: int
    @ivar key_tag: key tag
    @type key_tag: int
    @ivar algorithm: algorithm
    @type algorithm: int
    @ivar certificate: the certificate or CRL
    @type certificate: string
    @see: RFC 2538"""

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

def __init__(self, rdclass, rdtype, certificate_type, key_tag, algorithm,
                 certificate):
        super(CERT, self).__init__(rdclass, rdtype)
        self.certificate_type = certificate_type
        self.key_tag = key_tag
        self.algorithm = algorithm
        self.certificate = 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.dnssec.algorithm_to_text(self.algorithm),
                                dns.rdata._base64ify(self.certificate))

@classmethod
    def from_text(cls, rdclass, rdtype, tok, origin=None, relativize=True):
        certificate_type = _ctype_from_text(tok.get_string())
        key_tag = tok.get_uint16()
        algorithm = dns.dnssec.algorithm_from_text(tok.get_string())
        if algorithm < 0 or algorithm > 255:
            raise dns.exception.SyntaxError("bad algorithm type")
        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.encode())
        b64 = b''.join(chunks)
        certificate = base64.b64decode(b64)
        return cls(rdclass, rdtype, certificate_type, key_tag,
                   algorithm, certificate)

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

@classmethod
    def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin=None):
        prefix = wire[current: current + 5].unwrap()
        current += 5
        rdlen -= 5
        if rdlen < 0:
            raise dns.exception.FormError
        (certificate_type, key_tag, algorithm) = struct.unpack("!HHB", prefix)
        certificate = wire[current: current + rdlen].unwrap()
        return cls(rdclass, rdtype, certificate_type, key_tag, algorithm,
                   certificate)

${this.title}

Code Editor : CERT.py