Package dns :: Package rdtypes :: Package IN :: Module DHCID
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Source Code for Module dns.rdtypes.IN.DHCID

 1  # Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license 
 2   
 3  # Copyright (C) 2006, 2007, 2009-2011 Nominum, Inc. 
 4  # 
 5  # Permission to use, copy, modify, and distribute this software and its 
 6  # documentation for any purpose with or without fee is hereby granted, 
 7  # provided that the above copyright notice and this permission notice 
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17   
18  import base64 
19   
20  import dns.exception 
21 22 23 -class DHCID(dns.rdata.Rdata):
24 25 """DHCID record 26 27 @ivar data: the data (the content of the RR is opaque as far as the 28 DNS is concerned) 29 @type data: string 30 @see: RFC 4701""" 31 32 __slots__ = ['data'] 33
34 - def __init__(self, rdclass, rdtype, data):
35 super(DHCID, self).__init__(rdclass, rdtype) 36 self.data = data
37
38 - def to_text(self, origin=None, relativize=True, **kw):
39 return dns.rdata._base64ify(self.data)
40 41 @classmethod
42 - def from_text(cls, rdclass, rdtype, tok, origin=None, relativize=True):
43 chunks = [] 44 while 1: 45 t = tok.get().unescape() 46 if t.is_eol_or_eof(): 47 break 48 if not t.is_identifier(): 49 raise dns.exception.SyntaxError 50 chunks.append(t.value.encode()) 51 b64 = b''.join(chunks) 52 data = base64.b64decode(b64) 53 return cls(rdclass, rdtype, data)
54
55 - def to_wire(self, file, compress=None, origin=None):
56 file.write(self.data)
57 58 @classmethod
59 - def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin=None):
60 data = wire[current: current + rdlen].unwrap() 61 return cls(rdclass, rdtype, data)
62