1# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
2
3# Copyright (C) 2016 Nominum, Inc.
4#
5# Permission to use, copy, modify, and distribute this software and its
6# documentation for any purpose with or without fee is hereby granted,
7# provided that the above copyright notice and this permission notice
8# appear in all copies.
9#
10# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
11# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
13# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
16# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17
18import base64
19
20import dns.exception
21import dns.immutable
22import dns.rdata
23import dns.tokenizer
24
25@dns.immutable.immutable
26class OPENPGPKEY(dns.rdata.Rdata):
27
28    """OPENPGPKEY record"""
29
30    # see: RFC 7929
31
32    def __init__(self, rdclass, rdtype, key):
33        super().__init__(rdclass, rdtype)
34        self.key = self._as_bytes(key)
35
36    def to_text(self, origin=None, relativize=True, **kw):
37        return dns.rdata._base64ify(self.key, chunksize=None, **kw)
38
39    @classmethod
40    def from_text(cls, rdclass, rdtype, tok, origin=None, relativize=True,
41                  relativize_to=None):
42        b64 = tok.concatenate_remaining_identifiers().encode()
43        key = base64.b64decode(b64)
44        return cls(rdclass, rdtype, key)
45
46    def _to_wire(self, file, compress=None, origin=None, canonicalize=False):
47        file.write(self.key)
48
49    @classmethod
50    def from_wire_parser(cls, rdclass, rdtype, parser, origin=None):
51        key = parser.get_remaining()
52        return cls(rdclass, rdtype, key)
53