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?? AFSDB.py(1.8 KB)
?? AVC.py(950 B)
?? CAA.py(2.56 KB)
?? CDNSKEY.py(1 KB)
?? CDS.py(875 B)
?? CERT.py(3.86 KB)
?? CNAME.py(1.06 KB)
?? CSYNC.py(4.54 KB)
?? DLV.py(864 B)
?? DNAME.py(979 B)
?? DNSKEY.py(1 KB)
?? DS.py(873 B)
?? EUI48.py(1.1 KB)
?? EUI64.py(1.11 KB)
?? GPOS.py(5.24 KB)
?? HINFO.py(2.6 KB)
?? HIP.py(4.05 KB)
?? ISDN.py(3.19 KB)
?? LOC.py(11.98 KB)
?? MX.py(873 B)
?? NS.py(873 B)
?? NSEC.py(4.58 KB)
?? NSEC3.py(6.91 KB)
?? NSEC3PARAM.py(3.03 KB)
?? PTR.py(875 B)
?? RP.py(3 KB)
?? RRSIG.py(5.53 KB)
?? RT.py(891 B)
?? SOA.py(4.41 KB)
?? SPF.py(899 B)
?? SSHFP.py(2.76 KB)
?? TLSA.py(2.89 KB)
?? TXT.py(878 B)
?? URI.py(2.83 KB)
?? X25.py(2.07 KB)
?? __init__.py(1.19 KB)
?? __pycache__

Editing: HIP.py

# 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 base64
import binascii

import dns.exception
import dns.rdata
import dns.rdatatype

class HIP(dns.rdata.Rdata):

"""HIP record

@ivar hit: the host identity tag
    @type hit: string
    @ivar algorithm: the public key cryptographic algorithm
    @type algorithm: int
    @ivar key: the public key
    @type key: string
    @ivar servers: the rendezvous servers
    @type servers: list of dns.name.Name objects
    @see: RFC 5205"""

__slots__ = ['hit', 'algorithm', 'key', 'servers']

def __init__(self, rdclass, rdtype, hit, algorithm, key, servers):
        super(HIP, self).__init__(rdclass, rdtype)
        self.hit = hit
        self.algorithm = algorithm
        self.key = key
        self.servers = servers

def to_text(self, origin=None, relativize=True, **kw):
        hit = binascii.hexlify(self.hit).decode()
        key = base64.b64encode(self.key).replace(b'\n', b'').decode()
        text = u''
        servers = []
        for server in self.servers:
            servers.append(server.choose_relativity(origin, relativize))
        if len(servers) > 0:
            text += (u' ' + u' '.join((x.to_unicode() for x in servers)))
        return u'%u %s %s%s' % (self.algorithm, hit, key, text)

@classmethod
    def from_text(cls, rdclass, rdtype, tok, origin=None, relativize=True):
        algorithm = tok.get_uint8()
        hit = binascii.unhexlify(tok.get_string().encode())
        if len(hit) > 255:
            raise dns.exception.SyntaxError("HIT too long")
        key = base64.b64decode(tok.get_string().encode())
        servers = []
        while 1:
            token = tok.get()
            if token.is_eol_or_eof():
                break
            server = dns.name.from_text(token.value, origin)
            server.choose_relativity(origin, relativize)
            servers.append(server)
        return cls(rdclass, rdtype, hit, algorithm, key, servers)

def to_wire(self, file, compress=None, origin=None):
        lh = len(self.hit)
        lk = len(self.key)
        file.write(struct.pack("!BBH", lh, self.algorithm, lk))
        file.write(self.hit)
        file.write(self.key)
        for server in self.servers:
            server.to_wire(file, None, origin)

@classmethod
    def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin=None):
        (lh, algorithm, lk) = struct.unpack('!BBH',
                                            wire[current: current + 4])
        current += 4
        rdlen -= 4
        hit = wire[current: current + lh].unwrap()
        current += lh
        rdlen -= lh
        key = wire[current: current + lk].unwrap()
        current += lk
        rdlen -= lk
        servers = []
        while rdlen > 0:
            (server, cused) = dns.name.from_wire(wire[: current + rdlen],
                                                 current)
            current += cused
            rdlen -= cused
            if origin is not None:
                server = server.relativize(origin)
            servers.append(server)
        return cls(rdclass, rdtype, hit, algorithm, key, servers)

def choose_relativity(self, origin=None, relativize=True):
        servers = []
        for server in self.servers:
            server = server.choose_relativity(origin, relativize)
            servers.append(server)
        self.servers = servers

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