+++ /dev/null
-# Copyright (C) 2003-2007, 2009-2011 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 cStringIO
-import struct
-
-import dns.exception
-import dns.rdata
-
-_pows = (1L, 10L, 100L, 1000L, 10000L, 100000L, 1000000L, 10000000L,
- 100000000L, 1000000000L, 10000000000L)
-
-def _exponent_of(what, desc):
- exp = None
- for i in xrange(len(_pows)):
- if what // _pows[i] == 0L:
- exp = i - 1
- break
- if exp is None or exp < 0:
- raise dns.exception.SyntaxError("%s value out of bounds" % desc)
- return exp
-
-def _float_to_tuple(what):
- if what < 0:
- sign = -1
- what *= -1
- else:
- sign = 1
- what = long(round(what * 3600000))
- degrees = int(what // 3600000)
- what -= degrees * 3600000
- minutes = int(what // 60000)
- what -= minutes * 60000
- seconds = int(what // 1000)
- what -= int(seconds * 1000)
- what = int(what)
- return (degrees * sign, minutes, seconds, what)
-
-def _tuple_to_float(what):
- if what[0] < 0:
- sign = -1
- value = float(what[0]) * -1
- else:
- sign = 1
- value = float(what[0])
- value += float(what[1]) / 60.0
- value += float(what[2]) / 3600.0
- value += float(what[3]) / 3600000.0
- return sign * value
-
-def _encode_size(what, desc):
- what = long(what);
- exponent = _exponent_of(what, desc) & 0xF
- base = what // pow(10, exponent) & 0xF
- return base * 16 + exponent
-
-def _decode_size(what, desc):
- exponent = what & 0x0F
- if exponent > 9:
- raise dns.exception.SyntaxError("bad %s exponent" % desc)
- base = (what & 0xF0) >> 4
- if base > 9:
- raise dns.exception.SyntaxError("bad %s base" % desc)
- return long(base) * pow(10, exponent)
-
-class LOC(dns.rdata.Rdata):
- """LOC record
-
- @ivar latitude: latitude
- @type latitude: (int, int, int, int) tuple specifying the degrees, minutes,
- seconds, and milliseconds of the coordinate.
- @ivar longitude: longitude
- @type longitude: (int, int, int, int) tuple specifying the degrees,
- minutes, seconds, and milliseconds of the coordinate.
- @ivar altitude: altitude
- @type altitude: float
- @ivar size: size of the sphere
- @type size: float
- @ivar horizontal_precision: horizontal precision
- @type horizontal_precision: float
- @ivar vertical_precision: vertical precision
- @type vertical_precision: float
- @see: RFC 1876"""
-
- __slots__ = ['latitude', 'longitude', 'altitude', 'size',
- 'horizontal_precision', 'vertical_precision']
-
- def __init__(self, rdclass, rdtype, latitude, longitude, altitude,
- size=1.0, hprec=10000.0, vprec=10.0):
- """Initialize a LOC record instance.
-
- The parameters I{latitude} and I{longitude} may be either a 4-tuple
- of integers specifying (degrees, minutes, seconds, milliseconds),
- or they may be floating point values specifying the number of
- degrees. The other parameters are floats."""
-
- super(LOC, self).__init__(rdclass, rdtype)
- if isinstance(latitude, int) or isinstance(latitude, long):
- latitude = float(latitude)
- if isinstance(latitude, float):
- latitude = _float_to_tuple(latitude)
- self.latitude = latitude
- if isinstance(longitude, int) or isinstance(longitude, long):
- longitude = float(longitude)
- if isinstance(longitude, float):
- longitude = _float_to_tuple(longitude)
- self.longitude = longitude
- self.altitude = float(altitude)
- self.size = float(size)
- self.horizontal_precision = float(hprec)
- self.vertical_precision = float(vprec)
-
- def to_text(self, origin=None, relativize=True, **kw):
- if self.latitude[0] > 0:
- lat_hemisphere = 'N'
- lat_degrees = self.latitude[0]
- else:
- lat_hemisphere = 'S'
- lat_degrees = -1 * self.latitude[0]
- if self.longitude[0] > 0:
- long_hemisphere = 'E'
- long_degrees = self.longitude[0]
- else:
- long_hemisphere = 'W'
- long_degrees = -1 * self.longitude[0]
- text = "%d %d %d.%03d %s %d %d %d.%03d %s %0.2fm" % (
- lat_degrees, self.latitude[1], self.latitude[2], self.latitude[3],
- lat_hemisphere, long_degrees, self.longitude[1], self.longitude[2],
- self.longitude[3], long_hemisphere, self.altitude / 100.0
- )
-
- if self.size != 1.0 or self.horizontal_precision != 10000.0 or \
- self.vertical_precision != 10.0:
- text += " %0.2fm %0.2fm %0.2fm" % (
- self.size / 100.0, self.horizontal_precision / 100.0,
- self.vertical_precision / 100.0
- )
- return text
-
- def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
- latitude = [0, 0, 0, 0]
- longitude = [0, 0, 0, 0]
- size = 1.0
- hprec = 10000.0
- vprec = 10.0
-
- latitude[0] = tok.get_int()
- t = tok.get_string()
- if t.isdigit():
- latitude[1] = int(t)
- t = tok.get_string()
- if '.' in t:
- (seconds, milliseconds) = t.split('.')
- if not seconds.isdigit():
- raise dns.exception.SyntaxError('bad latitude seconds value')
- latitude[2] = int(seconds)
- if latitude[2] >= 60:
- raise dns.exception.SyntaxError('latitude seconds >= 60')
- l = len(milliseconds)
- if l == 0 or l > 3 or not milliseconds.isdigit():
- raise dns.exception.SyntaxError('bad latitude milliseconds value')
- if l == 1:
- m = 100
- elif l == 2:
- m = 10
- else:
- m = 1
- latitude[3] = m * int(milliseconds)
- t = tok.get_string()
- elif t.isdigit():
- latitude[2] = int(t)
- t = tok.get_string()
- if t == 'S':
- latitude[0] *= -1
- elif t != 'N':
- raise dns.exception.SyntaxError('bad latitude hemisphere value')
-
- longitude[0] = tok.get_int()
- t = tok.get_string()
- if t.isdigit():
- longitude[1] = int(t)
- t = tok.get_string()
- if '.' in t:
- (seconds, milliseconds) = t.split('.')
- if not seconds.isdigit():
- raise dns.exception.SyntaxError('bad longitude seconds value')
- longitude[2] = int(seconds)
- if longitude[2] >= 60:
- raise dns.exception.SyntaxError('longitude seconds >= 60')
- l = len(milliseconds)
- if l == 0 or l > 3 or not milliseconds.isdigit():
- raise dns.exception.SyntaxError('bad longitude milliseconds value')
- if l == 1:
- m = 100
- elif l == 2:
- m = 10
- else:
- m = 1
- longitude[3] = m * int(milliseconds)
- t = tok.get_string()
- elif t.isdigit():
- longitude[2] = int(t)
- t = tok.get_string()
- if t == 'W':
- longitude[0] *= -1
- elif t != 'E':
- raise dns.exception.SyntaxError('bad longitude hemisphere value')
-
- t = tok.get_string()
- if t[-1] == 'm':
- t = t[0 : -1]
- altitude = float(t) * 100.0 # m -> cm
-
- token = tok.get().unescape()
- if not token.is_eol_or_eof():
- value = token.value
- if value[-1] == 'm':
- value = value[0 : -1]
- size = float(value) * 100.0 # m -> cm
- token = tok.get().unescape()
- if not token.is_eol_or_eof():
- value = token.value
- if value[-1] == 'm':
- value = value[0 : -1]
- hprec = float(value) * 100.0 # m -> cm
- token = tok.get().unescape()
- if not token.is_eol_or_eof():
- value = token.value
- if value[-1] == 'm':
- value = value[0 : -1]
- vprec = float(value) * 100.0 # m -> cm
- tok.get_eol()
-
- return cls(rdclass, rdtype, latitude, longitude, altitude,
- size, hprec, vprec)
-
- from_text = classmethod(from_text)
-
- def to_wire(self, file, compress = None, origin = None):
- if self.latitude[0] < 0:
- sign = -1
- degrees = long(-1 * self.latitude[0])
- else:
- sign = 1
- degrees = long(self.latitude[0])
- milliseconds = (degrees * 3600000 +
- self.latitude[1] * 60000 +
- self.latitude[2] * 1000 +
- self.latitude[3]) * sign
- latitude = 0x80000000L + milliseconds
- if self.longitude[0] < 0:
- sign = -1
- degrees = long(-1 * self.longitude[0])
- else:
- sign = 1
- degrees = long(self.longitude[0])
- milliseconds = (degrees * 3600000 +
- self.longitude[1] * 60000 +
- self.longitude[2] * 1000 +
- self.longitude[3]) * sign
- longitude = 0x80000000L + milliseconds
- altitude = long(self.altitude) + 10000000L
- size = _encode_size(self.size, "size")
- hprec = _encode_size(self.horizontal_precision, "horizontal precision")
- vprec = _encode_size(self.vertical_precision, "vertical precision")
- wire = struct.pack("!BBBBIII", 0, size, hprec, vprec, latitude,
- longitude, altitude)
- file.write(wire)
-
- def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
- (version, size, hprec, vprec, latitude, longitude, altitude) = \
- struct.unpack("!BBBBIII", wire[current : current + rdlen])
- if latitude > 0x80000000L:
- latitude = float(latitude - 0x80000000L) / 3600000
- else:
- latitude = -1 * float(0x80000000L - latitude) / 3600000
- if latitude < -90.0 or latitude > 90.0:
- raise dns.exception.FormError("bad latitude")
- if longitude > 0x80000000L:
- longitude = float(longitude - 0x80000000L) / 3600000
- else:
- longitude = -1 * float(0x80000000L - longitude) / 3600000
- if longitude < -180.0 or longitude > 180.0:
- raise dns.exception.FormError("bad longitude")
- altitude = float(altitude) - 10000000.0
- size = _decode_size(size, "size")
- hprec = _decode_size(hprec, "horizontal precision")
- vprec = _decode_size(vprec, "vertical precision")
- return cls(rdclass, rdtype, latitude, longitude, altitude,
- size, hprec, vprec)
-
- from_wire = classmethod(from_wire)
-
- def _cmp(self, other):
- f = cStringIO.StringIO()
- self.to_wire(f)
- wire1 = f.getvalue()
- f.seek(0)
- f.truncate()
- other.to_wire(f)
- wire2 = f.getvalue()
- f.close()
-
- return cmp(wire1, wire2)
-
- def _get_float_latitude(self):
- return _tuple_to_float(self.latitude)
-
- def _set_float_latitude(self, value):
- self.latitude = _float_to_tuple(value)
-
- float_latitude = property(_get_float_latitude, _set_float_latitude,
- doc="latitude as a floating point value")
-
- def _get_float_longitude(self):
- return _tuple_to_float(self.longitude)
-
- def _set_float_longitude(self, value):
- self.longitude = _float_to_tuple(value)
-
- float_longitude = property(_get_float_longitude, _set_float_longitude,
- doc="longitude as a floating point value")
git.samba.org / bbaumbach / samba-autobuild / .git / blobdiff