From 4bbc3ff037026c72f3249f59c1b5af69a6ad6d69 Mon Sep 17 00:00:00 2001 From: Jelmer Vernooij Date: Mon, 29 Mar 2010 16:08:11 +0200 Subject: s4-python: Move dnspython to lib/, like the other Python modules This also avoids it from being installed if it's already present on the system. --- lib/dnspython/dns/rdtypes/ANY/SOA.py | 127 +++++++++++++++++++++++++++++++++++ 1 file changed, 127 insertions(+) create mode 100644 lib/dnspython/dns/rdtypes/ANY/SOA.py (limited to 'lib/dnspython/dns/rdtypes/ANY/SOA.py') diff --git a/lib/dnspython/dns/rdtypes/ANY/SOA.py b/lib/dnspython/dns/rdtypes/ANY/SOA.py new file mode 100644 index 0000000000..5f74b8d384 --- /dev/null +++ b/lib/dnspython/dns/rdtypes/ANY/SOA.py @@ -0,0 +1,127 @@ +# Copyright (C) 2003-2007, 2009, 2010 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.rdata +import dns.name + +class SOA(dns.rdata.Rdata): + """SOA record + + @ivar mname: the SOA MNAME (master name) field + @type mname: dns.name.Name object + @ivar rname: the SOA RNAME (responsible name) field + @type rname: dns.name.Name object + @ivar serial: The zone's serial number + @type serial: int + @ivar refresh: The zone's refresh value (in seconds) + @type refresh: int + @ivar retry: The zone's retry value (in seconds) + @type retry: int + @ivar expire: The zone's expiration value (in seconds) + @type expire: int + @ivar minimum: The zone's negative caching time (in seconds, called + "minimum" for historical reasons) + @type minimum: int + @see: RFC 1035""" + + __slots__ = ['mname', 'rname', 'serial', 'refresh', 'retry', 'expire', + 'minimum'] + + def __init__(self, rdclass, rdtype, mname, rname, serial, refresh, retry, + expire, minimum): + super(SOA, self).__init__(rdclass, rdtype) + self.mname = mname + self.rname = rname + self.serial = serial + self.refresh = refresh + self.retry = retry + self.expire = expire + self.minimum = minimum + + def to_text(self, origin=None, relativize=True, **kw): + mname = self.mname.choose_relativity(origin, relativize) + rname = self.rname.choose_relativity(origin, relativize) + return '%s %s %d %d %d %d %d' % ( + mname, rname, self.serial, self.refresh, self.retry, + self.expire, self.minimum ) + + def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True): + mname = tok.get_name() + rname = tok.get_name() + mname = mname.choose_relativity(origin, relativize) + rname = rname.choose_relativity(origin, relativize) + serial = tok.get_uint32() + refresh = tok.get_ttl() + retry = tok.get_ttl() + expire = tok.get_ttl() + minimum = tok.get_ttl() + tok.get_eol() + return cls(rdclass, rdtype, mname, rname, serial, refresh, retry, + expire, minimum ) + + from_text = classmethod(from_text) + + def to_wire(self, file, compress = None, origin = None): + self.mname.to_wire(file, compress, origin) + self.rname.to_wire(file, compress, origin) + five_ints = struct.pack('!IIIII', self.serial, self.refresh, + self.retry, self.expire, self.minimum) + file.write(five_ints) + + def to_digestable(self, origin = None): + return self.mname.to_digestable(origin) + \ + self.rname.to_digestable(origin) + \ + struct.pack('!IIIII', self.serial, self.refresh, + self.retry, self.expire, self.minimum) + + def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None): + (mname, cused) = dns.name.from_wire(wire[: current + rdlen], current) + current += cused + rdlen -= cused + (rname, cused) = dns.name.from_wire(wire[: current + rdlen], current) + current += cused + rdlen -= cused + if rdlen != 20: + raise dns.exception.FormError + five_ints = struct.unpack('!IIIII', + wire[current : current + rdlen]) + if not origin is None: + mname = mname.relativize(origin) + rname = rname.relativize(origin) + return cls(rdclass, rdtype, mname, rname, + five_ints[0], five_ints[1], five_ints[2], five_ints[3], + five_ints[4]) + + from_wire = classmethod(from_wire) + + def choose_relativity(self, origin = None, relativize = True): + self.mname = self.mname.choose_relativity(origin, relativize) + self.rname = self.rname.choose_relativity(origin, relativize) + + def _cmp(self, other): + v = cmp(self.mname, other.mname) + if v == 0: + v = cmp(self.rname, other.rname) + if v == 0: + self_ints = struct.pack('!IIIII', self.serial, self.refresh, + self.retry, self.expire, self.minimum) + other_ints = struct.pack('!IIIII', other.serial, other.refresh, + other.retry, other.expire, + other.minimum) + v = cmp(self_ints, other_ints) + return v -- cgit