| # 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 dns.exception |
| import dns.rdata |
| import dns.tokenizer |
| |
| def _validate_float_string(what): |
| if what[0] == '-' or what[0] == '+': |
| what = what[1:] |
| if what.isdigit(): |
| return |
| (left, right) = what.split('.') |
| if left == '' and right == '': |
| raise dns.exception.FormError |
| if not left == '' and not left.isdigit(): |
| raise dns.exception.FormError |
| if not right == '' and not right.isdigit(): |
| raise dns.exception.FormError |
| |
| class GPOS(dns.rdata.Rdata): |
| """GPOS record |
| |
| @ivar latitude: latitude |
| @type latitude: string |
| @ivar longitude: longitude |
| @type longitude: string |
| @ivar altitude: altitude |
| @type altitude: string |
| @see: RFC 1712""" |
| |
| __slots__ = ['latitude', 'longitude', 'altitude'] |
| |
| def __init__(self, rdclass, rdtype, latitude, longitude, altitude): |
| super(GPOS, self).__init__(rdclass, rdtype) |
| if isinstance(latitude, float) or \ |
| isinstance(latitude, int) or \ |
| isinstance(latitude, long): |
| latitude = str(latitude) |
| if isinstance(longitude, float) or \ |
| isinstance(longitude, int) or \ |
| isinstance(longitude, long): |
| longitude = str(longitude) |
| if isinstance(altitude, float) or \ |
| isinstance(altitude, int) or \ |
| isinstance(altitude, long): |
| altitude = str(altitude) |
| _validate_float_string(latitude) |
| _validate_float_string(longitude) |
| _validate_float_string(altitude) |
| self.latitude = latitude |
| self.longitude = longitude |
| self.altitude = altitude |
| |
| def to_text(self, origin=None, relativize=True, **kw): |
| return '%s %s %s' % (self.latitude, self.longitude, self.altitude) |
| |
| def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True): |
| latitude = tok.get_string() |
| longitude = tok.get_string() |
| altitude = tok.get_string() |
| tok.get_eol() |
| return cls(rdclass, rdtype, latitude, longitude, altitude) |
| |
| from_text = classmethod(from_text) |
| |
| def to_wire(self, file, compress = None, origin = None): |
| l = len(self.latitude) |
| assert l < 256 |
| byte = chr(l) |
| file.write(byte) |
| file.write(self.latitude) |
| l = len(self.longitude) |
| assert l < 256 |
| byte = chr(l) |
| file.write(byte) |
| file.write(self.longitude) |
| l = len(self.altitude) |
| assert l < 256 |
| byte = chr(l) |
| file.write(byte) |
| file.write(self.altitude) |
| |
| def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None): |
| l = ord(wire[current]) |
| current += 1 |
| rdlen -= 1 |
| if l > rdlen: |
| raise dns.exception.FormError |
| latitude = wire[current : current + l] |
| current += l |
| rdlen -= l |
| l = ord(wire[current]) |
| current += 1 |
| rdlen -= 1 |
| if l > rdlen: |
| raise dns.exception.FormError |
| longitude = wire[current : current + l] |
| current += l |
| rdlen -= l |
| l = ord(wire[current]) |
| current += 1 |
| rdlen -= 1 |
| if l != rdlen: |
| raise dns.exception.FormError |
| altitude = wire[current : current + l] |
| return cls(rdclass, rdtype, latitude, longitude, altitude) |
| |
| from_wire = classmethod(from_wire) |
| |
| def _cmp(self, other): |
| v = cmp(self.latitude, other.latitude) |
| if v == 0: |
| v = cmp(self.longitude, other.longitude) |
| if v == 0: |
| v = cmp(self.altitude, other.altitude) |
| return v |
| |
| def _get_float_latitude(self): |
| return float(self.latitude) |
| |
| def _set_float_latitude(self, value): |
| self.latitude = str(value) |
| |
| float_latitude = property(_get_float_latitude, _set_float_latitude, |
| doc="latitude as a floating point value") |
| |
| def _get_float_longitude(self): |
| return float(self.longitude) |
| |
| def _set_float_longitude(self, value): |
| self.longitude = str(value) |
| |
| float_longitude = property(_get_float_longitude, _set_float_longitude, |
| doc="longitude as a floating point value") |
| |
| def _get_float_altitude(self): |
| return float(self.altitude) |
| |
| def _set_float_altitude(self, value): |
| self.altitude = str(value) |
| |
| float_altitude = property(_get_float_altitude, _set_float_altitude, |
| doc="altitude as a floating point value") |