mirror of https://github.com/morpheus65535/bazarr
129 lines
4.4 KiB
Python
129 lines
4.4 KiB
Python
# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
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# Copyright (C) 2003-2007, 2009-2011 Nominum, Inc.
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#
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# Permission to use, copy, modify, and distribute this software and its
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# documentation for any purpose with or without fee is hereby granted,
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# provided that the above copyright notice and this permission notice
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# appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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import struct
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import dns.exception
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import dns.immutable
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import dns.rdata
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import dns.tokenizer
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def _validate_float_string(what):
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if len(what) == 0:
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raise dns.exception.FormError
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if what[0] == b'-'[0] or what[0] == b'+'[0]:
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what = what[1:]
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if what.isdigit():
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return
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try:
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(left, right) = what.split(b'.')
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except ValueError:
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raise dns.exception.FormError
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if left == b'' and right == b'':
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raise dns.exception.FormError
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if not left == b'' and not left.decode().isdigit():
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raise dns.exception.FormError
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if not right == b'' and not right.decode().isdigit():
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raise dns.exception.FormError
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@dns.immutable.immutable
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class GPOS(dns.rdata.Rdata):
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"""GPOS record"""
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# see: RFC 1712
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__slots__ = ['latitude', 'longitude', 'altitude']
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def __init__(self, rdclass, rdtype, latitude, longitude, altitude):
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super().__init__(rdclass, rdtype)
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if isinstance(latitude, float) or \
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isinstance(latitude, int):
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latitude = str(latitude)
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if isinstance(longitude, float) or \
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isinstance(longitude, int):
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longitude = str(longitude)
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if isinstance(altitude, float) or \
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isinstance(altitude, int):
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altitude = str(altitude)
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latitude = self._as_bytes(latitude, True, 255)
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longitude = self._as_bytes(longitude, True, 255)
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altitude = self._as_bytes(altitude, True, 255)
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_validate_float_string(latitude)
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_validate_float_string(longitude)
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_validate_float_string(altitude)
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self.latitude = latitude
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self.longitude = longitude
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self.altitude = altitude
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flat = self.float_latitude
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if flat < -90.0 or flat > 90.0:
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raise dns.exception.FormError('bad latitude')
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flong = self.float_longitude
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if flong < -180.0 or flong > 180.0:
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raise dns.exception.FormError('bad longitude')
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def to_text(self, origin=None, relativize=True, **kw):
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return '{} {} {}'.format(self.latitude.decode(),
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self.longitude.decode(),
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self.altitude.decode())
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@classmethod
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def from_text(cls, rdclass, rdtype, tok, origin=None, relativize=True,
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relativize_to=None):
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latitude = tok.get_string()
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longitude = tok.get_string()
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altitude = tok.get_string()
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return cls(rdclass, rdtype, latitude, longitude, altitude)
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def _to_wire(self, file, compress=None, origin=None, canonicalize=False):
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l = len(self.latitude)
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assert l < 256
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file.write(struct.pack('!B', l))
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file.write(self.latitude)
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l = len(self.longitude)
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assert l < 256
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file.write(struct.pack('!B', l))
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file.write(self.longitude)
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l = len(self.altitude)
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assert l < 256
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file.write(struct.pack('!B', l))
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file.write(self.altitude)
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@classmethod
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def from_wire_parser(cls, rdclass, rdtype, parser, origin=None):
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latitude = parser.get_counted_bytes()
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longitude = parser.get_counted_bytes()
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altitude = parser.get_counted_bytes()
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return cls(rdclass, rdtype, latitude, longitude, altitude)
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@property
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def float_latitude(self):
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"latitude as a floating point value"
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return float(self.latitude)
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@property
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def float_longitude(self):
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"longitude as a floating point value"
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return float(self.longitude)
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@property
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def float_altitude(self):
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"altitude as a floating point value"
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return float(self.altitude)
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