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# 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.""" 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(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 = keyname.to_text() secret = base64.encodestring(keyring[keyname]) textring[keytext] = secret return textring