\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5×\D6?\BDê\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2€ \00 $\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4ê\E9\F2á\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// # Copyright (C) 2004-2007, 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.dnssec import dns.rdata # flag constants SEP = 0x0001 REVOKE = 0x0080 ZONE = 0x0100 _flag_by_text = { 'SEP': SEP, 'REVOKE': REVOKE, 'ZONE': ZONE } # We construct the inverse mapping programmatically to ensure that we # cannot make any mistakes (e.g. omissions, cut-and-paste errors) that # would cause the mapping not to be true inverse. _flag_by_value = dict([(y, x) for x, y in _flag_by_text.iteritems()]) def flags_to_text_set(flags): """Convert a DNSKEY flags value to set texts @rtype: set([string])""" flags_set = set() mask = 0x1 while mask <= 0x8000: if flags & mask: text = _flag_by_value.get(mask) if not text: text = hex(mask) flags_set.add(text) mask <<= 1 return flags_set def flags_from_text_set(texts_set): """Convert set of DNSKEY flag mnemonic texts to DNSKEY flag value @rtype: int""" flags = 0 for text in texts_set: try: flags += _flag_by_text[text] except KeyError: raise NotImplementedError( "DNSKEY flag '%s' is not supported" % text) return flags class DNSKEY(dns.rdata.Rdata): """DNSKEY record @ivar flags: the key flags @type flags: int @ivar protocol: the protocol for which this key may be used @type protocol: int @ivar algorithm: the algorithm used for the key @type algorithm: int @ivar key: the public key @type key: string""" __slots__ = ['flags', 'protocol', 'algorithm', 'key'] def __init__(self, rdclass, rdtype, flags, protocol, algorithm, key): super(DNSKEY, self).__init__(rdclass, rdtype) self.flags = flags self.protocol = protocol self.algorithm = algorithm self.key = key def to_text(self, origin=None, relativize=True, **kw): return '%d %d %d %s' % (self.flags, self.protocol, self.algorithm, dns.rdat