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- # 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.
-
- """A place to store TSIG keys."""
-
- from dns._compat import maybe_decode, maybe_encode
-
- import base64
-
- import dns.name
-
-
- def from_text(textring):
- """Convert a dictionary containing (textual DNS name, base64 secret) pairs
- into a binary keyring which has (dns.name.Name, binary secret) pairs.
- @rtype: dict"""
-
- keyring = {}
- for keytext in textring:
- keyname = dns.name.from_text(keytext)
- secret = base64.decodestring(maybe_encode(textring[keytext]))
- keyring[keyname] = secret
- return keyring
-
-
- def to_text(keyring):
- """Convert a dictionary containing (dns.name.Name, binary secret) pairs
- into a text keyring which has (textual DNS name, base64 secret) pairs.
- @rtype: dict"""
-
- textring = {}
- for keyname in keyring:
- keytext = maybe_decode(keyname.to_text())
- secret = maybe_decode(base64.encodestring(keyring[keyname]))
- textring[keytext] = secret
- return textring
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