Gecko [ naturenectar.co.uk ]

Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2025-08-15 18:09
AFSDB.py	1.62 KB	-rw-r--r--	2024-02-18 18:35
AMTRELAY.py	3.3 KB	-rw-r--r--	2024-02-18 18:35
AVC.py	1 KB	-rw-r--r--	2024-02-18 18:35
CAA.py	2.45 KB	-rw-r--r--	2024-02-18 18:35
CDNSKEY.py	1.2 KB	-rw-r--r--	2024-02-18 18:35
CDS.py	1.14 KB	-rw-r--r--	2024-02-18 18:35
CERT.py	3.45 KB	-rw-r--r--	2024-02-18 18:35
CNAME.py	1.18 KB	-rw-r--r--	2024-02-18 18:35
CSYNC.py	2.38 KB	-rw-r--r--	2024-02-18 18:35
DLV.py	986 B	-rw-r--r--	2024-02-18 18:35
DNAME.py	1.12 KB	-rw-r--r--	2024-02-18 18:35
DNSKEY.py	1.19 KB	-rw-r--r--	2024-02-18 18:35
DS.py	995 B	-rw-r--r--	2024-02-18 18:35
EUI48.py	1.12 KB	-rw-r--r--	2024-02-18 18:35
EUI64.py	1.13 KB	-rw-r--r--	2024-02-18 18:35
GPOS.py	4.33 KB	-rw-r--r--	2024-02-18 18:35
HINFO.py	2.2 KB	-rw-r--r--	2024-02-18 18:35
HIP.py	3.15 KB	-rw-r--r--	2024-02-18 18:35
ISDN.py	2.65 KB	-rw-r--r--	2024-02-18 18:35
L32.py	1.26 KB	-rw-r--r--	2024-02-18 18:35
L64.py	1.55 KB	-rw-r--r--	2024-02-18 18:35
LOC.py	11.74 KB	-rw-r--r--	2024-02-18 18:35
LP.py	1.31 KB	-rw-r--r--	2024-02-18 18:35
MX.py	995 B	-rw-r--r--	2024-02-18 18:35
NID.py	1.51 KB	-rw-r--r--	2024-02-18 18:35
NINFO.py	1.02 KB	-rw-r--r--	2024-02-18 18:35
NS.py	995 B	-rw-r--r--	2024-02-18 18:35
NSEC.py	2.42 KB	-rw-r--r--	2024-02-18 18:35
NSEC3.py	4.23 KB	-rw-r--r--	2024-02-18 18:35
NSEC3PARAM.py	2.57 KB	-rw-r--r--	2024-02-18 18:35
OPENPGPKEY.py	1.81 KB	-rw-r--r--	2024-02-18 18:35
OPT.py	2.5 KB	-rw-r--r--	2024-02-18 18:35
PTR.py	997 B	-rw-r--r--	2024-02-18 18:35
RP.py	2.13 KB	-rw-r--r--	2024-02-18 18:35
RRSIG.py	4.81 KB	-rw-r--r--	2024-02-18 18:35
RT.py	1013 B	-rw-r--r--	2024-02-18 18:35
SMIMEA.py	222 B	-rw-r--r--	2024-02-18 18:35
SOA.py	3.07 KB	-rw-r--r--	2024-02-18 18:35
SPF.py	1022 B	-rw-r--r--	2024-02-18 18:35
SSHFP.py	2.47 KB	-rw-r--r--	2024-02-18 18:35
TKEY.py	4.82 KB	-rw-r--r--	2024-02-18 18:35
TLSA.py	218 B	-rw-r--r--	2024-02-18 18:35
TSIG.py	4.64 KB	-rw-r--r--	2024-02-18 18:35
TXT.py	1000 B	-rw-r--r--	2024-02-18 18:35
URI.py	2.85 KB	-rw-r--r--	2024-02-18 18:35
X25.py	1.9 KB	-rw-r--r--	2024-02-18 18:35
ZONEMD.py	2.34 KB	-rw-r--r--	2024-02-18 18:35
__init__.py	1.46 KB	-rw-r--r--	2024-02-18 18:35

Rename

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

# Copyright (C) 2006, 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 dns.exception
import dns.immutable
import dns.rdtypes.util

class Relay(dns.rdtypes.util.Gateway):
    name = "AMTRELAY relay"

@property
    def relay(self):
        return self.gateway

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

# see: RFC 8777

__slots__ = ["precedence", "discovery_optional", "relay_type", "relay"]

def __init__(
        self, rdclass, rdtype, precedence, discovery_optional, relay_type, relay
    ):
        super().__init__(rdclass, rdtype)
        relay = Relay(relay_type, relay)
        self.precedence = self._as_uint8(precedence)
        self.discovery_optional = self._as_bool(discovery_optional)
        self.relay_type = relay.type
        self.relay = relay.relay

def to_text(self, origin=None, relativize=True, **kw):
        relay = Relay(self.relay_type, self.relay).to_text(origin, relativize)
        return "%d %d %d %s" % (
            self.precedence,
            self.discovery_optional,
            self.relay_type,
            relay,
        )

@classmethod
    def from_text(
        cls, rdclass, rdtype, tok, origin=None, relativize=True, relativize_to=None
    ):
        precedence = tok.get_uint8()
        discovery_optional = tok.get_uint8()
        if discovery_optional > 1:
            raise dns.exception.SyntaxError("expecting 0 or 1")
        discovery_optional = bool(discovery_optional)
        relay_type = tok.get_uint8()
        if relay_type > 0x7F:
            raise dns.exception.SyntaxError("expecting an integer <= 127")
        relay = Relay.from_text(relay_type, tok, origin, relativize, relativize_to)
        return cls(
            rdclass, rdtype, precedence, discovery_optional, relay_type, relay.relay
        )

def _to_wire(self, file, compress=None, origin=None, canonicalize=False):
        relay_type = self.relay_type | (self.discovery_optional << 7)
        header = struct.pack("!BB", self.precedence, relay_type)
        file.write(header)
        Relay(self.relay_type, self.relay).to_wire(file, compress, origin, canonicalize)

@classmethod
    def from_wire_parser(cls, rdclass, rdtype, parser, origin=None):
        (precedence, relay_type) = parser.get_struct("!BB")
        discovery_optional = bool(relay_type >> 7)
        relay_type &= 0x7F
        relay = Relay.from_wire_parser(relay_type, parser, origin)
        return cls(
            rdclass, rdtype, precedence, discovery_optional, relay_type, relay.relay
        )