X-Git-Url: http://www.git.cypherpunks.ru/?a=blobdiff_plain;f=pyderasn.py;h=5292c5cf70fb5d195a39efde500a8b9a6f7cc443;hb=2272ffa91af327f530aae0a3a38e55955c5ddac6;hp=53e7abf245352eb8b610ef23d525f43f55213945;hpb=2d827e5960b2d1f876e7c7ac7fa32de9ecd83368;p=pyderasn.git diff --git a/pyderasn.py b/pyderasn.py index 53e7abf..5292c5c 100755 --- a/pyderasn.py +++ b/pyderasn.py @@ -75,9 +75,17 @@ tags simultaneously. There are :py:func:`pyderasn.tag_ctxp` and :py:func:`pyderasn.tag_ctxc` functions, allowing you to easily create ``CONTEXT`` ``PRIMITIVE``/``CONSTRUCTED`` tags, by specifying only the required tag -number. Pay attention that explicit tags always have *constructed* tag -(``tag_ctxc``), but implicit tags for primitive types are primitive -(``tag_ctxp``). +number. + +.. note:: + + EXPLICIT tags always have **constructed** tag. PyDERASN does not + explicitly check correctness of schema input here. + +.. note:: + + Implicit tags have **primitive** (``tag_ctxp``) encoding for + primitive values. :: @@ -5134,7 +5142,7 @@ def get_def_by_path(defines_by_path, sub_decode_path): if len(path) != len(sub_decode_path): continue for p1, p2 in zip(path, sub_decode_path): - if (p1 != any) and (p1 != p2): + if (not p1 is any) and (p1 != p2): break else: return define @@ -5419,19 +5427,17 @@ class Sequence(Obj): return spec.default return None - def _encoded_values(self): - raws = [] + def _values_for_encoding(self): for name, spec in iteritems(self.specs): value = self._value.get(name) if value is None: if spec.optional: continue raise ObjNotReady(name) - raws.append(value.encode()) - return raws + yield value def _encode(self): - v = b"".join(self._encoded_values()) + v = b"".join(v.encode() for v in self._values_for_encoding()) return b"".join((self.tag, len_encode(len(v)), v)) def _decode(self, tlv, offset, decode_path, ctx, tag_only): @@ -5666,8 +5672,8 @@ class Set(Sequence): .. _allow_unordered_set_ctx: DER prohibits unordered values encoding and will raise an error - during decode. If If :ref:`bered ` context option is set, - then no error will occure. Also you can disable strict values + during decode. If :ref:`bered ` context option is set, + then no error will occur. Also you can disable strict values ordering check by setting ``"allow_unordered_set": True`` :ref:`context ` option. """ @@ -5676,7 +5682,7 @@ class Set(Sequence): asn1_type_name = "SET" def _encode(self): - raws = self._encoded_values() + raws = [v.encode() for v in self._values_for_encoding()] raws.sort() v = b"".join(raws) return b"".join((self.tag, len_encode(len(v)), v)) @@ -6043,11 +6049,11 @@ class SequenceOf(Obj): def __getitem__(self, key): return self._value[key] - def _encoded_values(self): - return [v.encode() for v in self._value] + def _values_for_encoding(self): + return iter(self._value) def _encode(self): - v = b"".join(self._encoded_values()) + v = b"".join(v.encode() for v in self._values_for_encoding()) return b"".join((self.tag, len_encode(len(v)), v)) def _decode(self, tlv, offset, decode_path, ctx, tag_only, ordering_check=False): @@ -6210,7 +6216,7 @@ class SetOf(SequenceOf): asn1_type_name = "SET OF" def _encode(self): - raws = self._encoded_values() + raws = [v.encode() for v in self._values_for_encoding()] raws.sort() v = b"".join(raws) return b"".join((self.tag, len_encode(len(v)), v))