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51 lines
1.8 KiB
Python
51 lines
1.8 KiB
Python
5 years ago
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# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
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# Copyright (C) 2003-2007, 2009-2011 Nominum, Inc.
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#
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# Permission to use, copy, modify, and distribute this software and its
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# documentation for any purpose with or without fee is hereby granted,
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# provided that the above copyright notice and this permission notice
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# appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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"""A place to store TSIG keys."""
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from dns._compat import maybe_decode, maybe_encode
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import base64
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import dns.name
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def from_text(textring):
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"""Convert a dictionary containing (textual DNS name, base64 secret) pairs
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into a binary keyring which has (dns.name.Name, binary secret) pairs.
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@rtype: dict"""
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keyring = {}
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for keytext in textring:
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keyname = dns.name.from_text(keytext)
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secret = base64.decodestring(maybe_encode(textring[keytext]))
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keyring[keyname] = secret
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return keyring
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def to_text(keyring):
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"""Convert a dictionary containing (dns.name.Name, binary secret) pairs
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into a text keyring which has (textual DNS name, base64 secret) pairs.
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@rtype: dict"""
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textring = {}
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for keyname in keyring:
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keytext = maybe_decode(keyname.to_text())
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secret = maybe_decode(base64.encodestring(keyring[keyname]))
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textring[keytext] = secret
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return textring
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