133259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck# Copyright (C) 2006, 2007, 2009, 2010 Nominum, Inc. 233259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck# 333259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck# Permission to use, copy, modify, and distribute this software and its 433259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck# documentation for any purpose with or without fee is hereby granted, 533259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck# provided that the above copyright notice and this permission notice 633259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck# appear in all copies. 733259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck# 833259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES 933259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 1033259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR 1133259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 1233259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 1333259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 1433259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 1533259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck 1633259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reckimport dns.exception 1733259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck 1833259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reckclass DHCID(dns.rdata.Rdata): 1933259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck """DHCID record 2033259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck 2133259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck @ivar data: the data (the content of the RR is opaque as far as the 2233259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck DNS is concerned) 2333259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck @type data: string 2433259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck @see: RFC 4701""" 2533259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck 2633259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck __slots__ = ['data'] 2733259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck 2833259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck def __init__(self, rdclass, rdtype, data): 2933259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck super(DHCID, self).__init__(rdclass, rdtype) 3033259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck self.data = data 3133259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck 3233259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck def to_text(self, origin=None, relativize=True, **kw): 3333259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck return dns.rdata._base64ify(self.data) 3433259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck 3533259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True): 3633259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck chunks = [] 3733259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck while 1: 3833259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck t = tok.get().unescape() 3933259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck if t.is_eol_or_eof(): 4033259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck break 4133259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck if not t.is_identifier(): 4233259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck raise dns.exception.SyntaxError 4333259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck chunks.append(t.value) 4433259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck b64 = ''.join(chunks) 4533259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck data = b64.decode('base64_codec') 4633259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck return cls(rdclass, rdtype, data) 4733259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck 4833259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck from_text = classmethod(from_text) 4933259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck 5033259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck def to_wire(self, file, compress = None, origin = None): 5133259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck file.write(self.data) 5233259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck 5333259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None): 5433259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck data = wire[current : current + rdlen] 5533259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck return cls(rdclass, rdtype, data) 5633259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck 5733259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck from_wire = classmethod(from_wire) 5833259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck 5933259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck def _cmp(self, other): 6033259e44c8229f70ffe0cf3bb5ca9375c4feb2f9John Reck return cmp(self.data, other.data) 61