Package dns :: Package rdtypes :: Package ANY :: Module RP |
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# Source Code for Module dns.rdtypes.ANY.RP

     1  # Copyright (C) 2003-2007, 2009-2011 Nominum, Inc.
     2  #
     3  # Permission to use, copy, modify, and distribute this software and its
     4  # documentation for any purpose with or without fee is hereby granted,
     5  # provided that the above copyright notice and this permission notice
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     8  # THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
     9  # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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    14  # OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
    15
    16  import dns.exception
    17  import dns.rdata
    18  import dns.name
    19
    20
    21 -class RP(dns.rdata.Rdata):
    22
    23      """RP record
    24
    25      @ivar mbox: The responsible person's mailbox
    26      @type mbox: dns.name.Name object
    27      @ivar txt: The owner name of a node with TXT records, or the root name
    28      if no TXT records are associated with this RP.
    29      @type txt: dns.name.Name object
    30      @see: RFC 1183"""
    31
    32      __slots__ = ['mbox', 'txt']
    33
    34 -    def __init__(self, rdclass, rdtype, mbox, txt):
    35          super(RP, self).__init__(rdclass, rdtype)
    36          self.mbox = mbox
    37          self.txt = txt
    38
    39 -    def to_text(self, origin=None, relativize=True, **kw):
    40          mbox = self.mbox.choose_relativity(origin, relativize)
    41          txt = self.txt.choose_relativity(origin, relativize)
    42          return "%s %s" % (str(mbox), str(txt))
    43
    44      @classmethod
    45 -    def from_text(cls, rdclass, rdtype, tok, origin=None, relativize=True):
    46          mbox = tok.get_name()
    47          txt = tok.get_name()
    48          mbox = mbox.choose_relativity(origin, relativize)
    49          txt = txt.choose_relativity(origin, relativize)
    50          tok.get_eol()
    51          return cls(rdclass, rdtype, mbox, txt)
    52
    53 -    def to_wire(self, file, compress=None, origin=None):
    54          self.mbox.to_wire(file, None, origin)
    55          self.txt.to_wire(file, None, origin)
    56
    57 -    def to_digestable(self, origin=None):
    58          return self.mbox.to_digestable(origin) + \
    59              self.txt.to_digestable(origin)
    60
    61      @classmethod
    62 -    def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin=None):
    63          (mbox, cused) = dns.name.from_wire(wire[: current + rdlen],
    64                                             current)
    65          current += cused
    66          rdlen -= cused
    67          if rdlen <= 0:
    68              raise dns.exception.FormError
    69          (txt, cused) = dns.name.from_wire(wire[: current + rdlen],
    70                                            current)
    71          if cused != rdlen:
    72              raise dns.exception.FormError
    73          if origin is not None:
    74              mbox = mbox.relativize(origin)
    75              txt = txt.relativize(origin)
    76          return cls(rdclass, rdtype, mbox, txt)
    77
    78 -    def choose_relativity(self, origin=None, relativize=True):
    79          self.mbox = self.mbox.choose_relativity(origin, relativize)
    80          self.txt = self.txt.choose_relativity(origin, relativize)
    81