#!/usr/bin/env python
# coding: utf-8
# cython: language_level=3
-# PyDERASN -- Python ASN.1 DER/BER codec with abstract structures
+# PyDERASN -- Python ASN.1 DER/CER/BER codec with abstract structures
# Copyright (C) 2017-2020 Sergey Matveev <stargrave@stargrave.org>
#
# This program is free software: you can redistribute it and/or modify
. . 05:00
"""
+from array import array
from codecs import getdecoder
from codecs import getencoder
from collections import namedtuple
def colored(what, *args, **kwargs):
return what
-__version__ = "7.0"
+__version__ = "7.1"
__all__ = (
"agg_octet_string",
def __add__(self, their):
if their.__class__ == tuple:
- return self.__class__(self._value + their)
+ return self.__class__(self._value + array("L", their))
if isinstance(their, self.__class__):
return self.__class__(self._value + their._value)
raise InvalidValueType((self.__class__, tuple))
return value._value
if isinstance(value, string_types):
try:
- value = tuple(pureint(arc) for arc in value.split("."))
+ value = array("L", (pureint(arc) for arc in value.split(".")))
except ValueError:
raise InvalidOID("unacceptable arcs values")
if value.__class__ == tuple:
+ try:
+ value = array("L", value)
+ except OverflowError as err:
+ raise InvalidOID(repr(err))
+ if value.__class__ is array:
if len(value) < 2:
raise InvalidOID("less than 2 arcs")
first_arc = value[0]
def __eq__(self, their):
if their.__class__ == tuple:
- return self._value == their
+ return self._value == array("L", their)
if not issubclass(their.__class__, ObjectIdentifier):
return False
return (
offset=offset,
)
v, tail = v[:l], v[l:]
- arcs = []
+ arcs = array("L")
ber_encoded = False
while len(v) > 0:
i = 0
if ctx.get("bered", False):
ber_encoded = True
else:
- raise DecodeError("non normalized arc encoding")
+ raise DecodeError(
+ "non normalized arc encoding",
+ klass=self.__class__,
+ decode_path=decode_path,
+ offset=offset,
+ )
arc = (arc << 7) | (octet & 0x7F)
if octet & 0x80 == 0:
- arcs.append(arc)
+ try:
+ arcs.append(arc)
+ except OverflowError:
+ raise DecodeError(
+ "too huge value for local unsigned long",
+ klass=self.__class__,
+ decode_path=decode_path,
+ offset=offset,
+ )
v = v[i + 1:]
break
i += 1
first_arc = 2
second_arc -= 80
obj = self.__class__(
- value=tuple([first_arc, second_arc] + arcs[1:]),
+ value=array("L", (first_arc, second_arc)) + arcs[1:],
impl=self.tag,
expl=self._expl,
default=self.default,
# ASN.1 constructed types
########################################################################
-def get_def_by_path(defines_by_path, sub_decode_path):
- """Get define by decode path
- """
- for path, define in defines_by_path:
- if len(path) != len(sub_decode_path):
- continue
- for p1, p2 in zip(path, sub_decode_path):
- if (not p1 is any) and (p1 != p2):
- break
- else:
- return define
-
-
def abs_decode_path(decode_path, rel_path):
"""Create an absolute decode path from current and relative ones
value = value._value
elif hasattr(value, NEXT_ATTR_NAME):
iterator = True
- value = value
elif hasattr(value, "__iter__"):
value = list(value)
else:
def main(): # pragma: no cover
import argparse
- parser = argparse.ArgumentParser(description="PyDERASN ASN.1 BER/DER decoder")
+ parser = argparse.ArgumentParser(description="PyDERASN ASN.1 BER/CER/DER decoder")
parser.add_argument(
"--skip",
type=int,