X-Git-Url: http://www.git.cypherpunks.ru/?a=blobdiff_plain;f=pyderasn.py;h=2dee5440a85b678ee131e929d346f1a5583bc60d;hb=79df3a7d1dfac7856a3a3719edb2319387f0dfad;hp=68dd21339f62e6801e88788215eb19fcda613fb7;hpb=7f2e5ef9aef122fb5bdfcb377f0644c7784398a2;p=pyderasn.git

diff --git a/pyderasn.py b/pyderasn.py
index 68dd213..2dee544 100755
--- a/pyderasn.py
+++ b/pyderasn.py
@@ -1,7 +1,7 @@
 #!/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
@@ -1084,6 +1084,7 @@ Now you can print only the specified tree, for example signature algorithm::
                          . . 05:00
 """
 
+from array import array
 from codecs import getdecoder
 from codecs import getencoder
 from collections import namedtuple
@@ -1123,7 +1124,7 @@ except ImportError:  # pragma: no cover
     def colored(what, *args, **kwargs):
         return what
 
-__version__ = "7.0"
+__version__ = "7.1"
 
 __all__ = (
     "agg_octet_string",
@@ -4130,7 +4131,7 @@ class ObjectIdentifier(Obj):
 
     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))
@@ -4140,10 +4141,15 @@ class ObjectIdentifier(Obj):
             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]
@@ -4203,7 +4209,7 @@ class ObjectIdentifier(Obj):
 
     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 (
@@ -4295,7 +4301,7 @@ class ObjectIdentifier(Obj):
                 offset=offset,
             )
         v, tail = v[:l], v[l:]
-        arcs = []
+        arcs = array("L")
         ber_encoded = False
         while len(v) > 0:
             i = 0
@@ -4306,10 +4312,23 @@ class ObjectIdentifier(Obj):
                     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
@@ -4331,7 +4350,7 @@ class ObjectIdentifier(Obj):
             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,
@@ -5797,19 +5816,6 @@ class Any(Obj):
 # 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
 
@@ -6625,7 +6631,6 @@ class SequenceOf(Obj):
             value = value._value
         elif hasattr(value, NEXT_ATTR_NAME):
             iterator = True
-            value = value
         elif hasattr(value, "__iter__"):
             value = list(value)
         else:
@@ -7085,7 +7090,7 @@ def generic_decoder():  # pragma: no cover
 
 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,