X-Git-Url: http://www.git.cypherpunks.ru/?p=pyderasn.git;a=blobdiff_plain;f=pyderasn.py;h=5adc5b068d17915f0c543144b66557b9fc355f30;hp=9006462dd3f2cea556957e81e4dff5aa912208e8;hb=3b5f3e7f4219b79410bd7b3e1a3d41be51f78f0a;hpb=d60aaac3ba56405102d013dc4758667839a8e5ee diff --git a/pyderasn.py b/pyderasn.py index 9006462..5adc5b0 100755 --- a/pyderasn.py +++ b/pyderasn.py @@ -1,12 +1,11 @@ #!/usr/bin/env python # coding: utf-8 # PyDERASN -- Python ASN.1 DER/BER codec with abstract structures -# Copyright (C) 2017-2018 Sergey Matveev +# Copyright (C) 2017-2020 Sergey Matveev # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Lesser General Public License as -# published by the Free Software Foundation, either version 3 of the -# License, or (at your option) any later version. +# published by the Free Software Foundation, version 3 of the License. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of @@ -14,8 +13,7 @@ # GNU Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public -# License along with this program. If not, see -# . +# License along with this program. If not, see . """Python ASN.1 DER/BER codec with abstract structures This library allows you to marshal various structures in ASN.1 DER @@ -23,7 +21,7 @@ format, unmarshal them in BER/CER/DER ones. >>> i = Integer(123) >>> raw = i.encode() - >>> Integer().decode(raw) == i + >>> Integer().decod(raw) == i True There are primitive types, holding single values @@ -67,10 +65,11 @@ ____ Most types in ASN.1 has specific tag for them. ``Obj.tag_default`` is the default tag used during coding process. You can override it with -either ``IMPLICIT`` (using ``impl`` keyword argument), or -``EXPLICIT`` one (using ``expl`` keyword argument). Both arguments take -raw binary string, containing that tag. You can **not** set implicit and -explicit tags simultaneously. +either ``IMPLICIT`` (using either ``impl`` keyword argument or ``impl`` +class attribute), or ``EXPLICIT`` one (using either ``expl`` keyword +argument or ``expl`` class attribute). Both arguments take raw binary +string, containing that tag. You can **not** set implicit and explicit +tags simultaneously. There are :py:func:`pyderasn.tag_ctxp` and :py:func:`pyderasn.tag_ctxc` functions, allowing you to easily create ``CONTEXT`` @@ -163,21 +162,27 @@ All objects have ``ready`` boolean property, that tells if object is ready to be encoded. If that kind of action is performed on unready object, then :py:exc:`pyderasn.ObjNotReady` exception will be raised. -All objects have ``copy()`` method, that returns their copy, that can be +All objects are friendly to ``copy.copy()`` and copied objects can be safely mutated. +Also all objects can be safely ``pickle``-d, but pay attention that +pickling among different PyDERASN versions is prohibited. + .. _decoding: Decoding -------- -Decoding is performed using ``decode()`` method. ``offset`` optional -argument could be used to set initial object's offset in the binary -data, for convenience. It returns decoded object and remaining -unmarshalled data (tail). Internally all work is done on +Decoding is performed using :py:meth:`pyderasn.Obj.decode` method. +``offset`` optional argument could be used to set initial object's +offset in the binary data, for convenience. It returns decoded object +and remaining unmarshalled data (tail). Internally all work is done on ``memoryview(data)``, and you can leave returning tail as a memoryview, by specifying ``leavemm=True`` argument. +Also note convenient :py:meth:`pyderasn.Obj.decod` method, that +immediately checks and raises if there is non-empty tail. + When object is decoded, ``decoded`` property is true and you can safely use following properties: @@ -207,9 +212,9 @@ When error occurs, :py:exc:`pyderasn.DecodeError` is raised. Context _______ -You can specify so called context keyword argument during ``decode()`` -invocation. It is dictionary containing various options governing -decoding process. +You can specify so called context keyword argument during +:py:meth:`pyderasn.Obj.decode` invocation. It is dictionary containing +various options governing decoding process. Currently available context options: @@ -239,6 +244,105 @@ all object ``repr``. But it is easy to write custom formatters. >>> print(pprint(obj)) 0 [1,1, 2] INTEGER -12345 +.. _pprint_example: + +Example certificate:: + + >>> print(pprint(crt)) + 0 [1,3,1604] Certificate SEQUENCE + 4 [1,3,1453] . tbsCertificate: TBSCertificate SEQUENCE + 10-2 [1,1, 1] . . version: [0] EXPLICIT Version INTEGER v3 OPTIONAL + 13 [1,1, 3] . . serialNumber: CertificateSerialNumber INTEGER 61595 + 18 [1,1, 13] . . signature: AlgorithmIdentifier SEQUENCE + 20 [1,1, 9] . . . algorithm: OBJECT IDENTIFIER 1.2.840.113549.1.1.5 + 31 [0,0, 2] . . . parameters: [UNIV 5] ANY OPTIONAL + . . . . 05:00 + 33 [0,0, 278] . . issuer: Name CHOICE rdnSequence + 33 [1,3, 274] . . . rdnSequence: RDNSequence SEQUENCE OF + 37 [1,1, 11] . . . . 0: RelativeDistinguishedName SET OF + 39 [1,1, 9] . . . . . 0: AttributeTypeAndValue SEQUENCE + 41 [1,1, 3] . . . . . . type: AttributeType OBJECT IDENTIFIER 2.5.4.6 + 46 [0,0, 4] . . . . . . value: [UNIV 19] AttributeValue ANY + . . . . . . . 13:02:45:53 + [...] + 1461 [1,1, 13] . signatureAlgorithm: AlgorithmIdentifier SEQUENCE + 1463 [1,1, 9] . . algorithm: OBJECT IDENTIFIER 1.2.840.113549.1.1.5 + 1474 [0,0, 2] . . parameters: [UNIV 5] ANY OPTIONAL + . . . 05:00 + 1476 [1,2, 129] . signatureValue: BIT STRING 1024 bits + . . 68:EE:79:97:97:DD:3B:EF:16:6A:06:F2:14:9A:6E:CD + . . 9E:12:F7:AA:83:10:BD:D1:7C:98:FA:C7:AE:D4:0E:2C + [...] + + Trailing data: 0a + +Let's parse that output, human:: + + 10-2 [1,1, 1] . . version: [0] EXPLICIT Version INTEGER v3 OPTIONAL + ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ + 0 1 2 3 4 5 6 7 8 9 10 11 + +:: + + 20 [1,1, 9] . . . algorithm: OBJECT IDENTIFIER 1.2.840.113549.1.1.5 + ^ ^ ^ ^ ^ ^ ^ ^ + 0 2 3 4 5 6 9 10 + +:: + + 33 [0,0, 278] . . issuer: Name CHOICE rdnSequence + ^ ^ ^ ^ ^ ^ ^ ^ ^ + 0 2 3 4 5 6 8 9 10 + +:: + + 52-2∞ B [1,1,1054]∞ . . . . eContent: [0] EXPLICIT BER OCTET STRING 1046 bytes + ^ ^ ^ ^ ^ + 12 13 14 9 10 + +:0: + Offset of the object, where its DER/BER encoding begins. + Pay attention that it does **not** include explicit tag. +:1: + If explicit tag exists, then this is its length (tag + encoded length). +:2: + Length of object's tag. For example CHOICE does not have its own tag, + so it is zero. +:3: + Length of encoded length. +:4: + Length of encoded value. +:5: + Visual indentation to show the depth of object in the hierarchy. +:6: + Object's name inside SEQUENCE/CHOICE. +:7: + If either IMPLICIT or EXPLICIT tag is set, then it will be shown + here. "IMPLICIT" is omitted. +:8: + Object's class name, if set. Omitted if it is just an ordinary simple + value (like with ``algorithm`` in example above). +:9: + Object's ASN.1 type. +:10: + Object's value, if set. Can consist of multiple words (like OCTET/BIT + STRINGs above). We see ``v3`` value in Version, because it is named. + ``rdnSequence`` is the choice of CHOICE type. +:11: + Possible other flags like OPTIONAL and DEFAULT, if value equals to the + default one, specified in the schema. +:12: + Shows does object contains any kind of BER encoded data (possibly + Sequence holding BER-encoded underlying value). +:13: + Only applicable to BER encoded data. Indefinite length encoding mark. +:14: + Only applicable to BER encoded data. If object has BER-specific + encoding, then ``BER`` will be shown. It does not depend on indefinite + length encoding. ``EOC``, ``BOOLEAN``, ``BIT STRING``, ``OCTET STRING`` + (and its derivatives), ``SET``, ``SET OF`` could be BERed. + + .. _definedby: DEFINED BY @@ -249,6 +353,8 @@ DEFINED BY some previously met ObjectIdentifier. This library provides ability to specify mapping between some OID and field that must be decoded with specific specification. +.. _defines: + defines kwarg _____________ @@ -322,15 +428,15 @@ value must be sequence of following tuples:: where ``decode_path`` is a tuple holding so-called decode path to the exact :py:class:`pyderasn.ObjectIdentifier` field you want to apply -``defines``, holding exactly the same value as accepted in its keyword -argument. +``defines``, holding exactly the same value as accepted in its +:ref:`keyword argument `. For example, again for CMS, you want to automatically decode ``SignedData`` and CMC's (:rfc:`5272`) ``PKIData`` and ``PKIResponse`` structures it may hold. Also, automatically decode ``controlSequence`` of ``PKIResponse``:: - content_info, tail = ContentInfo().decode(data, defines_by_path=( + content_info = ContentInfo().decod(data, ctx={"defines_by_path": ( ( ("contentType",), ((("content",), {id_signedData: SignedData()}),), @@ -365,7 +471,7 @@ of ``PKIResponse``:: id_cmc_transactionId: TransactionId(), })), ), - )) + )}) Pay attention for :py:class:`pyderasn.DecodePathDefBy` and ``any``. First function is useful for path construction when some automatic @@ -384,7 +490,8 @@ constructed primitive types should be parsed successfully. * If object is encoded in BER form (not the DER one), then ``ber_encoded`` attribute is set to True. Only ``BOOLEAN``, ``BIT STRING``, ``OCTET - STRING``, ``SEQUENCE``, ``SET``, ``SET OF`` can contain it. + STRING``, ``OBJECT IDENTIFIER``, ``SEQUENCE``, ``SET``, ``SET OF`` + can contain it. * If object has an indefinite length encoding, then its ``lenindef`` attribute is set to True. Only ``BIT STRING``, ``OCTET STRING``, ``SEQUENCE``, ``SET``, ``SEQUENCE OF``, ``SET OF``, ``ANY`` can @@ -417,6 +524,11 @@ lengths will be invalid in that case. This option should be used only for skipping some decode errors, just to see the decoded structure somehow. +Base Obj +-------- +.. autoclass:: pyderasn.Obj + :members: + Primitive types --------------- @@ -462,6 +574,11 @@ NumericString _____________ .. autoclass:: pyderasn.NumericString +PrintableString +_______________ +.. autoclass:: pyderasn.PrintableString + :members: __init__ + UTCTime _______ .. autoclass:: pyderasn.UTCTime @@ -515,16 +632,17 @@ Various ------- .. autofunction:: pyderasn.abs_decode_path +.. autofunction:: pyderasn.colonize_hex .. autofunction:: pyderasn.hexenc .. autofunction:: pyderasn.hexdec .. autofunction:: pyderasn.tag_encode .. autofunction:: pyderasn.tag_decode .. autofunction:: pyderasn.tag_ctxp .. autofunction:: pyderasn.tag_ctxc -.. autoclass:: pyderasn.Obj .. autoclass:: pyderasn.DecodeError :members: __init__ .. autoclass:: pyderasn.NotEnoughData +.. autoclass:: pyderasn.ExceedingData .. autoclass:: pyderasn.LenIndefForm .. autoclass:: pyderasn.TagMismatch .. autoclass:: pyderasn.InvalidLength @@ -539,10 +657,13 @@ from codecs import getdecoder from codecs import getencoder from collections import namedtuple from collections import OrderedDict +from copy import copy from datetime import datetime from math import ceil from os import environ +from string import ascii_letters from string import digits +from unicodedata import category as unicat from six import add_metaclass from six import binary_type @@ -551,18 +672,22 @@ from six import indexbytes from six import int2byte from six import integer_types from six import iterbytes +from six import iteritems +from six import itervalues from six import PY2 from six import string_types from six import text_type +from six import unichr as six_unichr from six.moves import xrange as six_xrange try: from termcolor import colored -except ImportError: - def colored(what, *args): +except ImportError: # pragma: no cover + def colored(what, *args, **kwargs): return what +__version__ = "6.0" __all__ = ( "Any", @@ -574,6 +699,7 @@ __all__ = ( "DecodeError", "DecodePathDefBy", "Enumerated", + "ExceedingData", "GeneralizedTime", "GeneralString", "GraphicString", @@ -641,7 +767,11 @@ LENINDEF_PP_CHAR = "I" if PY2 else "∞" # Errors ######################################################################## -class DecodeError(Exception): +class ASN1Error(ValueError): + pass + + +class DecodeError(ASN1Error): def __init__(self, msg="", klass=None, decode_path=(), offset=0): """ :param str msg: reason of decode failing @@ -680,6 +810,18 @@ class NotEnoughData(DecodeError): pass +class ExceedingData(ASN1Error): + def __init__(self, nbytes): + super(ExceedingData, self).__init__() + self.nbytes = nbytes + + def __str__(self): + return "%d trailing bytes" % self.nbytes + + def __repr__(self): + return "%s(%s)" % (self.__class__.__name__, self) + + class LenIndefForm(DecodeError): pass @@ -696,7 +838,7 @@ class InvalidOID(DecodeError): pass -class ObjUnknown(ValueError): +class ObjUnknown(ASN1Error): def __init__(self, name): super(ObjUnknown, self).__init__() self.name = name @@ -708,7 +850,7 @@ class ObjUnknown(ValueError): return "%s(%s)" % (self.__class__.__name__, self) -class ObjNotReady(ValueError): +class ObjNotReady(ASN1Error): def __init__(self, name): super(ObjNotReady, self).__init__() self.name = name @@ -720,7 +862,7 @@ class ObjNotReady(ValueError): return "%s(%s)" % (self.__class__.__name__, self) -class InvalidValueType(ValueError): +class InvalidValueType(ASN1Error): def __init__(self, expected_types): super(InvalidValueType, self).__init__() self.expected_types = expected_types @@ -734,7 +876,7 @@ class InvalidValueType(ValueError): return "%s(%s)" % (self.__class__.__name__, self) -class BoundsError(ValueError): +class BoundsError(ASN1Error): def __init__(self, bound_min, value, bound_max): super(BoundsError, self).__init__() self.bound_min = bound_min @@ -905,9 +1047,9 @@ def len_decode(data): ######################################################################## class AutoAddSlots(type): - def __new__(mcs, name, bases, _dict): + def __new__(cls, name, bases, _dict): _dict["__slots__"] = _dict.get("__slots__", ()) - return type.__new__(mcs, name, bases, _dict) + return type.__new__(cls, name, bases, _dict) @add_metaclass(AutoAddSlots) @@ -974,17 +1116,36 @@ class Obj(object): """ return (self.llen + self.vlen) > 0 - def copy(self): # pragma: no cover - """Make a copy of object, safe to be mutated + def __getstate__(self): # pragma: no cover + """Used for making safe to be mutable pickleable copies """ raise NotImplementedError() + def __setstate__(self, state): + if state.version != __version__: + raise ValueError("data is pickled by different PyDERASN version") + self.tag = self.tag_default + self._value = None + self._expl = None + self.default = None + self.optional = False + self.offset = 0 + self.llen = 0 + self.vlen = 0 + self.expl_lenindef = False + self.lenindef = False + self.ber_encoded = False + @property def tlen(self): + """See :ref:`decoding` + """ return len(self.tag) @property def tlvlen(self): + """See :ref:`decoding` + """ return self.tlen + self.llen + self.vlen def __str__(self): # pragma: no cover @@ -1009,11 +1170,20 @@ class Obj(object): raise NotImplementedError() def encode(self): + """Encode the structure + + :returns: DER representation + """ raw = self._encode() if self._expl is None: return raw return b"".join((self._expl, len_encode(len(raw)), raw)) + def hexencode(self): + """Do hexadecimal encoded :py:meth:`pyderasn.Obj.encode` + """ + return hexenc(self.encode()) + def decode( self, data, @@ -1022,6 +1192,7 @@ class Obj(object): decode_path=(), ctx=None, tag_only=False, + _ctx_immutable=True, ): """Decode the data @@ -1029,14 +1200,20 @@ class Obj(object): :param int offset: initial data's offset :param bool leavemm: do we need to leave memoryview of remaining data as is, or convert it to bytes otherwise - :param ctx: optional :ref:`context ` governing decoding process. + :param ctx: optional :ref:`context ` governing decoding process :param tag_only: decode only the tag, without length and contents (used only in Choice and Set structures, trying to determine if tag satisfies the scheme) + :param _ctx_immutable: do we need to ``copy.copy()`` ``ctx`` + before using it? :returns: (Obj, remaining data) + + .. seealso:: :ref:`decoding` """ if ctx is None: ctx = {} + elif _ctx_immutable: + ctx = copy(ctx) tlv = memoryview(data) if self._expl is None: result = self._decode( @@ -1047,7 +1224,7 @@ class Obj(object): tag_only=tag_only, ) if tag_only: - return + return None obj, tail = result else: try: @@ -1084,8 +1261,8 @@ class Obj(object): ctx=ctx, tag_only=tag_only, ) - if tag_only: - return + if tag_only: # pragma: no cover + return None obj, tail = result eoc_expected, tail = tail[:EOC_LEN], tail[EOC_LEN:] if eoc_expected.tobytes() != EOC: @@ -1119,8 +1296,8 @@ class Obj(object): ctx=ctx, tag_only=tag_only, ) - if tag_only: - return + if tag_only: # pragma: no cover + return None obj, tail = result if obj.tlvlen < l and not ctx.get("allow_expl_oob", False): raise DecodeError( @@ -1131,48 +1308,96 @@ class Obj(object): ) return obj, (tail if leavemm else tail.tobytes()) + def decod(self, data, offset=0, decode_path=(), ctx=None): + """Decode the data, check that tail is empty + + :raises ExceedingData: if tail is not empty + + This is just a wrapper over :py:meth:`pyderasn.Obj.decode` + (decode without tail) that also checks that there is no + trailing data left. + """ + obj, tail = self.decode( + data, + offset=offset, + decode_path=decode_path, + ctx=ctx, + leavemm=True, + ) + if len(tail) > 0: + raise ExceedingData(len(tail)) + return obj + + def hexdecode(self, data, *args, **kwargs): + """Do :py:meth:`pyderasn.Obj.decode` with hexadecimal decoded data + """ + return self.decode(hexdec(data), *args, **kwargs) + + def hexdecod(self, data, *args, **kwargs): + """Do :py:meth:`pyderasn.Obj.decod` with hexadecimal decoded data + """ + return self.decod(hexdec(data), *args, **kwargs) + @property def expled(self): + """See :ref:`decoding` + """ return self._expl is not None @property def expl_tag(self): + """See :ref:`decoding` + """ return self._expl @property def expl_tlen(self): + """See :ref:`decoding` + """ return len(self._expl) @property def expl_llen(self): + """See :ref:`decoding` + """ if self.expl_lenindef: return 1 return len(len_encode(self.tlvlen)) @property def expl_offset(self): + """See :ref:`decoding` + """ return self.offset - self.expl_tlen - self.expl_llen @property def expl_vlen(self): + """See :ref:`decoding` + """ return self.tlvlen @property def expl_tlvlen(self): + """See :ref:`decoding` + """ return self.expl_tlen + self.expl_llen + self.expl_vlen @property def fulloffset(self): + """See :ref:`decoding` + """ return self.expl_offset if self.expled else self.offset @property def fulllen(self): + """See :ref:`decoding` + """ return self.expl_tlvlen if self.expled else self.tlvlen def pps_lenindef(self, decode_path): if self.lenindef and not ( - getattr(self, "defined", None) is not None and - self.defined[1].lenindef + getattr(self, "defined", None) is not None and + self.defined[1].lenindef ): yield _pp( asn1_type_name="EOC", @@ -1230,6 +1455,7 @@ class DecodePathDefBy(object): ######################################################################## PP = namedtuple("PP", ( + "obj", "asn1_type_name", "obj_name", "decode_path", @@ -1255,6 +1481,7 @@ PP = namedtuple("PP", ( def _pp( + obj=None, asn1_type_name="unknown", obj_name="unknown", decode_path=(), @@ -1278,6 +1505,7 @@ def _pp( bered=False, ): return PP( + obj, asn1_type_name, obj_name, decode_path, @@ -1306,9 +1534,15 @@ def _colourize(what, colour, with_colours, attrs=("bold",)): return colored(what, colour, attrs=attrs) if with_colours else what +def colonize_hex(hexed): + """Separate hexadecimal string with colons + """ + return ":".join(hexed[i:i + 2] for i in six_xrange(0, len(hexed), 2)) + + def pp_console_row( pp, - oids=None, + oid_maps=(), with_offsets=False, with_blob=True, with_colours=False, @@ -1343,14 +1577,18 @@ def pp_console_row( if isinstance(ent, DecodePathDefBy): cols.append(_colourize("DEFINED BY", "red", with_colours, ("reverse",))) value = str(ent.defined_by) + oid_name = None if ( - oids is not None and + len(oid_maps) > 0 and ent.defined_by.asn1_type_name == - ObjectIdentifier.asn1_type_name and - value in oids + ObjectIdentifier.asn1_type_name ): - cols.append(_colourize("%s:" % oids[value], "green", with_colours)) - else: + for oid_map in oid_maps: + oid_name = oid_map.get(value) + if oid_name is not None: + cols.append(_colourize("%s:" % oid_name, "green", with_colours)) + break + if oid_name is None: cols.append(_colourize("%s:" % value, "white", with_colours, ("reverse",))) else: cols.append(_colourize("%s:" % ent, "yellow", with_colours, ("reverse",))) @@ -1371,11 +1609,23 @@ def pp_console_row( value = pp.value cols.append(_colourize(value, "white", with_colours, ("reverse",))) if ( - oids is not None and - pp.asn1_type_name == ObjectIdentifier.asn1_type_name and - value in oids + len(oid_maps) > 0 and + pp.asn1_type_name == ObjectIdentifier.asn1_type_name ): - cols.append(_colourize("(%s)" % oids[value], "green", with_colours)) + for oid_map in oid_maps: + oid_name = oid_map.get(value) + if oid_name is not None: + cols.append(_colourize("(%s)" % oid_name, "green", with_colours)) + break + if pp.asn1_type_name == Integer.asn1_type_name: + hex_repr = hex(int(pp.obj._value))[2:].upper() + if len(hex_repr) % 2 != 0: + hex_repr = "0" + hex_repr + cols.append(_colourize( + "(%s)" % colonize_hex(hex_repr), + "green", + with_colours, + )) if with_blob: if isinstance(pp.blob, binary_type): cols.append(hexenc(pp.blob)) @@ -1401,18 +1651,16 @@ def pp_console_blob(pp, decode_path_len_decrease=0): cols.append(" ." * (decode_path_len + 1)) if isinstance(pp.blob, binary_type): blob = hexenc(pp.blob).upper() - for i in range(0, len(blob), 32): + for i in six_xrange(0, len(blob), 32): chunk = blob[i:i + 32] - yield " ".join(cols + [":".join( - chunk[j:j + 2] for j in range(0, len(chunk), 2) - )]) + yield " ".join(cols + [colonize_hex(chunk)]) elif isinstance(pp.blob, tuple): yield " ".join(cols + [", ".join(pp.blob)]) def pprint( obj, - oids=None, + oid_maps=(), big_blobs=False, with_colours=False, with_decode_path=False, @@ -1421,8 +1669,8 @@ def pprint( """Pretty print object :param Obj obj: object you want to pretty print - :param oids: ``OID <-> humand readable string`` dictionary. When OID - from it is met, then its humand readable form is printed + :param oid_maps: list of ``str(OID) <-> human readable string`` dictionary. + Its human readable form is printed when OID is met :param big_blobs: if large binary objects are met (like OctetString values), do we need to print them too, on separate lines @@ -1435,16 +1683,16 @@ def pprint( for pp in pps: if hasattr(pp, "_fields"): if ( - decode_path_only != () and - tuple( - str(p) for p in pp.decode_path[:len(decode_path_only)] - ) != decode_path_only + decode_path_only != () and + tuple( + str(p) for p in pp.decode_path[:len(decode_path_only)] + ) != decode_path_only ): continue if big_blobs: yield pp_console_row( pp, - oids=oids, + oid_maps=oid_maps, with_offsets=True, with_blob=False, with_colours=with_colours, @@ -1452,14 +1700,14 @@ def pprint( decode_path_len_decrease=len(decode_path_only), ) for row in pp_console_blob( - pp, - decode_path_len_decrease=len(decode_path_only), + pp, + decode_path_len_decrease=len(decode_path_only), ): yield row else: yield pp_console_row( pp, - oids=oids, + oid_maps=oid_maps, with_offsets=True, with_blob=True, with_colours=with_colours, @@ -1476,6 +1724,22 @@ def pprint( # ASN.1 primitive types ######################################################################## +BooleanState = namedtuple("BooleanState", ( + "version", + "value", + "tag", + "expl", + "default", + "optional", + "offset", + "llen", + "vlen", + "expl_lenindef", + "lenindef", + "ber_encoded", +)) + + class Boolean(Obj): """``BOOLEAN`` boolean type @@ -1520,27 +1784,45 @@ class Boolean(Obj): self._value = default def _value_sanitize(self, value): - if issubclass(value.__class__, Boolean): - return value._value if isinstance(value, bool): return value + if issubclass(value.__class__, Boolean): + return value._value raise InvalidValueType((self.__class__, bool)) @property def ready(self): return self._value is not None - def copy(self): - obj = self.__class__() - obj._value = self._value - obj.tag = self.tag - obj._expl = self._expl - obj.default = self.default - obj.optional = self.optional - obj.offset = self.offset - obj.llen = self.llen - obj.vlen = self.vlen - return obj + def __getstate__(self): + return BooleanState( + __version__, + self._value, + self.tag, + self._expl, + self.default, + self.optional, + self.offset, + self.llen, + self.vlen, + self.expl_lenindef, + self.lenindef, + self.ber_encoded, + ) + + def __setstate__(self, state): + super(Boolean, self).__setstate__(state) + self._value = state.value + self.tag = state.tag + self._expl = state.expl + self.default = state.default + self.optional = state.optional + self.offset = state.offset + self.llen = state.llen + self.vlen = state.vlen + self.expl_lenindef = state.expl_lenindef + self.lenindef = state.lenindef + self.ber_encoded = state.ber_encoded def __nonzero__(self): self._assert_ready() @@ -1602,7 +1884,7 @@ class Boolean(Obj): offset=offset, ) if tag_only: - return + return None try: l, _, v = len_decode(lv) except DecodeError as err: @@ -1658,6 +1940,7 @@ class Boolean(Obj): def pps(self, decode_path=()): yield _pp( + obj=self, asn1_type_name=self.asn1_type_name, obj_name=self.__class__.__name__, decode_path=decode_path, @@ -1682,6 +1965,25 @@ class Boolean(Obj): yield pp +IntegerState = namedtuple("IntegerState", ( + "version", + "specs", + "value", + "bound_min", + "bound_max", + "tag", + "expl", + "default", + "optional", + "offset", + "llen", + "vlen", + "expl_lenindef", + "lenindef", + "ber_encoded", +)) + + class Integer(Obj): """``INTEGER`` integer type @@ -1765,10 +2067,10 @@ class Integer(Obj): self._value = default def _value_sanitize(self, value): - if issubclass(value.__class__, Integer): - value = value._value - elif isinstance(value, integer_types): + if isinstance(value, integer_types): pass + elif issubclass(value.__class__, Integer): + value = value._value elif isinstance(value, str): value = self.specs.get(value) if value is None: @@ -1783,19 +2085,41 @@ class Integer(Obj): def ready(self): return self._value is not None - def copy(self): - obj = self.__class__(_specs=self.specs) - obj._value = self._value - obj._bound_min = self._bound_min - obj._bound_max = self._bound_max - obj.tag = self.tag - obj._expl = self._expl - obj.default = self.default - obj.optional = self.optional - obj.offset = self.offset - obj.llen = self.llen - obj.vlen = self.vlen - return obj + def __getstate__(self): + return IntegerState( + __version__, + self.specs, + self._value, + self._bound_min, + self._bound_max, + self.tag, + self._expl, + self.default, + self.optional, + self.offset, + self.llen, + self.vlen, + self.expl_lenindef, + self.lenindef, + self.ber_encoded, + ) + + def __setstate__(self, state): + super(Integer, self).__setstate__(state) + self.specs = state.specs + self._value = state.value + self._bound_min = state.bound_min + self._bound_max = state.bound_max + self.tag = state.tag + self._expl = state.expl + self.default = state.default + self.optional = state.optional + self.offset = state.offset + self.llen = state.llen + self.vlen = state.vlen + self.expl_lenindef = state.expl_lenindef + self.lenindef = state.lenindef + self.ber_encoded = state.ber_encoded def __int__(self): self._assert_ready() @@ -1825,9 +2149,10 @@ class Integer(Obj): @property def named(self): - for name, value in self.specs.items(): + for name, value in iteritems(self.specs): if value == self._value: return name + return None def __call__( self, @@ -1907,7 +2232,7 @@ class Integer(Obj): offset=offset, ) if tag_only: - return + return None try: l, llen, v = len_decode(lv) except DecodeError as err: @@ -1985,6 +2310,7 @@ class Integer(Obj): def pps(self, decode_path=()): yield _pp( + obj=self, asn1_type_name=self.asn1_type_name, obj_name=self.__class__.__name__, decode_path=decode_path, @@ -2008,6 +2334,26 @@ class Integer(Obj): yield pp +SET01 = frozenset(("0", "1")) +BitStringState = namedtuple("BitStringState", ( + "version", + "specs", + "value", + "tag", + "expl", + "default", + "optional", + "offset", + "llen", + "vlen", + "expl_lenindef", + "lenindef", + "ber_encoded", + "tag_constructed", + "defined", +)) + + class BitString(Obj): """``BIT STRING`` bit string type @@ -2113,8 +2459,6 @@ class BitString(Obj): return bit_len, bytes(octets) def _value_sanitize(self, value): - if issubclass(value.__class__, BitString): - return value._value if isinstance(value, (string_types, binary_type)): if ( isinstance(value, string_types) and @@ -2122,10 +2466,10 @@ class BitString(Obj): ): if value.endswith("'B"): value = value[1:-2] - if not set(value) <= set(("0", "1")): + if not frozenset(value) <= SET01: raise ValueError("B's coding contains unacceptable chars") return self._bits2octets(value) - elif value.endswith("'H"): + if value.endswith("'H"): value = value[1:-2] return ( len(value) * 4, @@ -2133,8 +2477,7 @@ class BitString(Obj): ) if isinstance(value, binary_type): return (len(value) * 8, value) - else: - raise InvalidValueType((self.__class__, string_types, binary_type)) + raise InvalidValueType((self.__class__, string_types, binary_type)) if isinstance(value, tuple): if ( len(value) == 2 and @@ -2150,31 +2493,54 @@ class BitString(Obj): bits.append(bit) if len(bits) == 0: return self._bits2octets("") - bits = set(bits) + bits = frozenset(bits) return self._bits2octets("".join( ("1" if bit in bits else "0") for bit in six_xrange(max(bits) + 1) )) + if issubclass(value.__class__, BitString): + return value._value raise InvalidValueType((self.__class__, binary_type, string_types)) @property def ready(self): return self._value is not None - def copy(self): - obj = self.__class__(_specs=self.specs) - value = self._value - if value is not None: - value = (value[0], value[1]) - obj._value = value - obj.tag = self.tag - obj._expl = self._expl - obj.default = self.default - obj.optional = self.optional - obj.offset = self.offset - obj.llen = self.llen - obj.vlen = self.vlen - return obj + def __getstate__(self): + return BitStringState( + __version__, + self.specs, + self._value, + self.tag, + self._expl, + self.default, + self.optional, + self.offset, + self.llen, + self.vlen, + self.expl_lenindef, + self.lenindef, + self.ber_encoded, + self.tag_constructed, + self.defined, + ) + + def __setstate__(self, state): + super(BitString, self).__setstate__(state) + self.specs = state.specs + self._value = state.value + self.tag = state.tag + self._expl = state.expl + self.default = state.default + self.optional = state.optional + self.offset = state.offset + self.llen = state.llen + self.vlen = state.vlen + self.expl_lenindef = state.expl_lenindef + self.lenindef = state.lenindef + self.ber_encoded = state.ber_encoded + self.tag_constructed = state.tag_constructed + self.defined = state.defined def __iter__(self): self._assert_ready() @@ -2203,7 +2569,7 @@ class BitString(Obj): @property def named(self): - return [name for name, bit in self.specs.items() if self[bit]] + return [name for name, bit in iteritems(self.specs) if self[bit]] def __call__( self, @@ -2248,7 +2614,7 @@ class BitString(Obj): octets, )) - def _decode_chunk(self, lv, offset, decode_path, ctx): + def _decode_chunk(self, lv, offset, decode_path): try: l, llen, v = len_decode(lv) except DecodeError as err: @@ -2317,9 +2683,9 @@ class BitString(Obj): offset=offset, ) if t == self.tag: - if tag_only: - return - return self._decode_chunk(lv, offset, decode_path, ctx) + if tag_only: # pragma: no cover + return None + return self._decode_chunk(lv, offset, decode_path) if t == self.tag_constructed: if not ctx.get("bered", False): raise DecodeError( @@ -2328,8 +2694,8 @@ class BitString(Obj): decode_path=decode_path, offset=offset, ) - if tag_only: - return + if tag_only: # pragma: no cover + return None lenindef = False try: l, llen, v = len_decode(lv) @@ -2382,6 +2748,7 @@ class BitString(Obj): decode_path=sub_decode_path, leavemm=True, ctx=ctx, + _ctx_immutable=False, ) except TagMismatch: raise DecodeError( @@ -2446,6 +2813,7 @@ class BitString(Obj): if len(self.specs) > 0: blob = tuple(self.named) yield _pp( + obj=self, asn1_type_name=self.asn1_type_name, obj_name=self.__class__.__name__, decode_path=decode_path, @@ -2477,6 +2845,26 @@ class BitString(Obj): yield pp +OctetStringState = namedtuple("OctetStringState", ( + "version", + "value", + "bound_min", + "bound_max", + "tag", + "expl", + "default", + "optional", + "offset", + "llen", + "vlen", + "expl_lenindef", + "lenindef", + "ber_encoded", + "tag_constructed", + "defined", +)) + + class OctetString(Obj): """``OCTET STRING`` binary string type @@ -2525,13 +2913,7 @@ class OctetString(Obj): :param default: set default value. Type same as in ``value`` :param bool optional: is object ``OPTIONAL`` in sequence """ - super(OctetString, self).__init__( - impl, - expl, - default, - optional, - _decoded, - ) + super(OctetString, self).__init__(impl, expl, default, optional, _decoded) self._value = value self._bound_min, self._bound_max = getattr( self, @@ -2558,10 +2940,10 @@ class OctetString(Obj): ) def _value_sanitize(self, value): - if issubclass(value.__class__, OctetString): - value = value._value - elif isinstance(value, binary_type): + if isinstance(value, binary_type): pass + elif issubclass(value.__class__, OctetString): + value = value._value else: raise InvalidValueType((self.__class__, bytes)) if not self._bound_min <= len(value) <= self._bound_max: @@ -2572,19 +2954,43 @@ class OctetString(Obj): def ready(self): return self._value is not None - def copy(self): - obj = self.__class__() - obj._value = self._value - obj._bound_min = self._bound_min - obj._bound_max = self._bound_max - obj.tag = self.tag - obj._expl = self._expl - obj.default = self.default - obj.optional = self.optional - obj.offset = self.offset - obj.llen = self.llen - obj.vlen = self.vlen - return obj + def __getstate__(self): + return OctetStringState( + __version__, + self._value, + self._bound_min, + self._bound_max, + self.tag, + self._expl, + self.default, + self.optional, + self.offset, + self.llen, + self.vlen, + self.expl_lenindef, + self.lenindef, + self.ber_encoded, + self.tag_constructed, + self.defined, + ) + + def __setstate__(self, state): + super(OctetString, self).__setstate__(state) + self._value = state.value + self._bound_min = state.bound_min + self._bound_max = state.bound_max + self.tag = state.tag + self._expl = state.expl + self.default = state.default + self.optional = state.optional + self.offset = state.offset + self.llen = state.llen + self.vlen = state.vlen + self.expl_lenindef = state.expl_lenindef + self.lenindef = state.lenindef + self.ber_encoded = state.ber_encoded + self.tag_constructed = state.tag_constructed + self.defined = state.defined def __bytes__(self): self._assert_ready() @@ -2633,7 +3039,7 @@ class OctetString(Obj): self._value, )) - def _decode_chunk(self, lv, offset, decode_path, ctx): + def _decode_chunk(self, lv, offset, decode_path): try: l, llen, v = len_decode(lv) except DecodeError as err: @@ -2689,8 +3095,8 @@ class OctetString(Obj): ) if t == self.tag: if tag_only: - return - return self._decode_chunk(lv, offset, decode_path, ctx) + return None + return self._decode_chunk(lv, offset, decode_path) if t == self.tag_constructed: if not ctx.get("bered", False): raise DecodeError( @@ -2700,7 +3106,7 @@ class OctetString(Obj): offset=offset, ) if tag_only: - return + return None lenindef = False try: l, llen, v = len_decode(lv) @@ -2746,6 +3152,7 @@ class OctetString(Obj): decode_path=sub_decode_path, leavemm=True, ctx=ctx, + _ctx_immutable=False, ) except TagMismatch: raise DecodeError( @@ -2796,6 +3203,7 @@ class OctetString(Obj): def pps(self, decode_path=()): yield _pp( + obj=self, asn1_type_name=self.asn1_type_name, obj_name=self.__class__.__name__, decode_path=decode_path, @@ -2827,6 +3235,21 @@ class OctetString(Obj): yield pp +NullState = namedtuple("NullState", ( + "version", + "tag", + "expl", + "default", + "optional", + "offset", + "llen", + "vlen", + "expl_lenindef", + "lenindef", + "ber_encoded", +)) + + class Null(Obj): """``NULL`` null object @@ -2859,16 +3282,33 @@ class Null(Obj): def ready(self): return True - def copy(self): - obj = self.__class__() - obj.tag = self.tag - obj._expl = self._expl - obj.default = self.default - obj.optional = self.optional - obj.offset = self.offset - obj.llen = self.llen - obj.vlen = self.vlen - return obj + def __getstate__(self): + return NullState( + __version__, + self.tag, + self._expl, + self.default, + self.optional, + self.offset, + self.llen, + self.vlen, + self.expl_lenindef, + self.lenindef, + self.ber_encoded, + ) + + def __setstate__(self, state): + super(Null, self).__setstate__(state) + self.tag = state.tag + self._expl = state.expl + self.default = state.default + self.optional = state.optional + self.offset = state.offset + self.llen = state.llen + self.vlen = state.vlen + self.expl_lenindef = state.expl_lenindef + self.lenindef = state.lenindef + self.ber_encoded = state.ber_encoded def __eq__(self, their): if not issubclass(their.__class__, Null): @@ -2910,8 +3350,8 @@ class Null(Obj): decode_path=decode_path, offset=offset, ) - if tag_only: - return + if tag_only: # pragma: no cover + return None try: l, _, v = len_decode(lv) except DecodeError as err: @@ -2941,6 +3381,7 @@ class Null(Obj): def pps(self, decode_path=()): yield _pp( + obj=self, asn1_type_name=self.asn1_type_name, obj_name=self.__class__.__name__, decode_path=decode_path, @@ -2962,6 +3403,23 @@ class Null(Obj): yield pp +ObjectIdentifierState = namedtuple("ObjectIdentifierState", ( + "version", + "value", + "tag", + "expl", + "default", + "optional", + "offset", + "llen", + "vlen", + "expl_lenindef", + "lenindef", + "ber_encoded", + "defines", +)) + + class ObjectIdentifier(Obj): """``OBJECT IDENTIFIER`` OID type @@ -3012,13 +3470,7 @@ class ObjectIdentifier(Obj): :param default: set default value. Type same as in ``value`` :param bool optional: is object ``OPTIONAL`` in sequence """ - super(ObjectIdentifier, self).__init__( - impl, - expl, - default, - optional, - _decoded, - ) + super(ObjectIdentifier, self).__init__(impl, expl, default, optional, _decoded) self._value = value if value is not None: self._value = self._value_sanitize(value) @@ -3066,18 +3518,37 @@ class ObjectIdentifier(Obj): def ready(self): return self._value is not None - def copy(self): - obj = self.__class__() - obj._value = self._value - obj.defines = self.defines - obj.tag = self.tag - obj._expl = self._expl - obj.default = self.default - obj.optional = self.optional - obj.offset = self.offset - obj.llen = self.llen - obj.vlen = self.vlen - return obj + def __getstate__(self): + return ObjectIdentifierState( + __version__, + self._value, + self.tag, + self._expl, + self.default, + self.optional, + self.offset, + self.llen, + self.vlen, + self.expl_lenindef, + self.lenindef, + self.ber_encoded, + self.defines, + ) + + def __setstate__(self, state): + super(ObjectIdentifier, self).__setstate__(state) + self._value = state.value + self.tag = state.tag + self._expl = state.expl + self.default = state.default + self.optional = state.optional + self.offset = state.offset + self.llen = state.llen + self.vlen = state.vlen + self.expl_lenindef = state.expl_lenindef + self.lenindef = state.lenindef + self.ber_encoded = state.ber_encoded + self.defines = state.defines def __iter__(self): self._assert_ready() @@ -3161,8 +3632,8 @@ class ObjectIdentifier(Obj): decode_path=decode_path, offset=offset, ) - if tag_only: - return + if tag_only: # pragma: no cover + return None try: l, llen, v = len_decode(lv) except DecodeError as err: @@ -3188,11 +3659,17 @@ class ObjectIdentifier(Obj): ) v, tail = v[:l], v[l:] arcs = [] + ber_encoded = False while len(v) > 0: i = 0 arc = 0 while True: octet = indexbytes(v, i) + if i == 0 and octet == 0x80: + if ctx.get("bered", False): + ber_encoded = True + else: + raise DecodeError("non normalized arc encoding") arc = (arc << 7) | (octet & 0x7F) if octet & 0x80 == 0: arcs.append(arc) @@ -3224,6 +3701,8 @@ class ObjectIdentifier(Obj): optional=self.optional, _decoded=(offset, llen, l), ) + if ber_encoded: + obj.ber_encoded = True return obj, tail def __repr__(self): @@ -3231,6 +3710,7 @@ class ObjectIdentifier(Obj): def pps(self, decode_path=()): yield _pp( + obj=self, asn1_type_name=self.asn1_type_name, obj_name=self.__class__.__name__, decode_path=decode_path, @@ -3248,6 +3728,7 @@ class ObjectIdentifier(Obj): expl_llen=self.expl_llen if self.expled else None, expl_vlen=self.expl_vlen if self.expled else None, expl_lenindef=self.expl_lenindef, + ber_encoded=self.ber_encoded, bered=self.bered, ) for pp in self.pps_lenindef(decode_path): @@ -3276,13 +3757,7 @@ class Enumerated(Integer): bounds=None, # dummy argument, workability for Integer.decode ): super(Enumerated, self).__init__( - value=value, - impl=impl, - expl=expl, - default=default, - optional=optional, - _specs=_specs, - _decoded=_decoded, + value, bounds, impl, expl, default, optional, _specs, _decoded, ) if len(self.specs) == 0: raise ValueError("schema must be specified") @@ -3291,7 +3766,10 @@ class Enumerated(Integer): if isinstance(value, self.__class__): value = value._value elif isinstance(value, integer_types): - if value not in list(self.specs.values()): + for _value in itervalues(self.specs): + if _value == value: + break + else: raise DecodeError( "unknown integer value: %s" % value, klass=self.__class__, @@ -3304,20 +3782,6 @@ class Enumerated(Integer): raise InvalidValueType((self.__class__, int, str)) return value - def copy(self): - obj = self.__class__(_specs=self.specs) - obj._value = self._value - obj._bound_min = self._bound_min - obj._bound_max = self._bound_max - obj.tag = self.tag - obj._expl = self._expl - obj.default = self.default - obj.optional = self.optional - obj.offset = self.offset - obj.llen = self.llen - obj.vlen = self.vlen - return obj - def __call__( self, value=None, @@ -3337,6 +3801,12 @@ class Enumerated(Integer): ) +def escape_control_unicode(c): + if unicat(c).startswith("C"): + c = repr(c).lstrip("u").strip("'") + return c + + class CommonString(OctetString): """Common class for all strings @@ -3399,7 +3869,7 @@ class CommonString(OctetString): * - :py:class:`pyderasn.BMPString` - utf-16-be """ - __slots__ = ("encoding",) + __slots__ = () def _value_sanitize(self, value): value_raw = None @@ -3455,8 +3925,12 @@ class CommonString(OctetString): def pps(self, decode_path=(), no_unicode=False): value = None if self.ready: - value = hexenc(bytes(self)) if no_unicode else self.__unicode__() + value = ( + hexenc(bytes(self)) if no_unicode else + "".join(escape_control_unicode(c) for c in self.__unicode__()) + ) yield _pp( + obj=self, asn1_type_name=self.asn1_type_name, obj_name=self.__class__.__name__, decode_path=decode_path, @@ -3488,29 +3962,138 @@ class UTF8String(CommonString): asn1_type_name = "UTF8String" -class NumericString(CommonString): +class AllowableCharsMixin(object): + @property + def allowable_chars(self): + if PY2: + return self._allowable_chars + return frozenset(six_unichr(c) for c in self._allowable_chars) + + +class NumericString(AllowableCharsMixin, CommonString): """Numeric string - Its value is properly sanitized: only ASCII digits can be stored. + Its value is properly sanitized: only ASCII digits with spaces can + be stored. + + >>> NumericString().allowable_chars + frozenset(['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ' ']) """ __slots__ = () tag_default = tag_encode(18) encoding = "ascii" asn1_type_name = "NumericString" - allowable_chars = set(digits.encode("ascii")) + _allowable_chars = frozenset(digits.encode("ascii") + b" ") def _value_sanitize(self, value): value = super(NumericString, self)._value_sanitize(value) - if not set(value) <= self.allowable_chars: + if not frozenset(value) <= self._allowable_chars: raise DecodeError("non-numeric value") return value -class PrintableString(CommonString): +PrintableStringState = namedtuple( + "PrintableStringState", + OctetStringState._fields + ("allowable_chars",), +) + + +class PrintableString(AllowableCharsMixin, CommonString): + """Printable string + + Its value is properly sanitized: see X.680 41.4 table 10. + + >>> PrintableString().allowable_chars + frozenset([' ', "'", ..., 'z']) + >>> obj = PrintableString("foo*bar", allow_asterisk=True) + PrintableString PrintableString foo*bar + >>> obj.allow_asterisk, obj.allow_ampersand + (True, False) + """ __slots__ = () tag_default = tag_encode(19) encoding = "ascii" asn1_type_name = "PrintableString" + _allowable_chars = frozenset( + (ascii_letters + digits + " '()+,-./:=?").encode("ascii") + ) + _asterisk = frozenset("*".encode("ascii")) + _ampersand = frozenset("&".encode("ascii")) + + def __init__( + self, + value=None, + bounds=None, + impl=None, + expl=None, + default=None, + optional=False, + _decoded=(0, 0, 0), + allow_asterisk=False, + allow_ampersand=False, + ): + """ + :param allow_asterisk: allow asterisk character + :param allow_ampersand: allow ampersand character + """ + if allow_asterisk: + self._allowable_chars |= self._asterisk + if allow_ampersand: + self._allowable_chars |= self._ampersand + super(PrintableString, self).__init__( + value, bounds, impl, expl, default, optional, _decoded, + ) + + @property + def allow_asterisk(self): + """Is asterisk character allowed? + """ + return self._asterisk <= self._allowable_chars + + @property + def allow_ampersand(self): + """Is ampersand character allowed? + """ + return self._ampersand <= self._allowable_chars + + def _value_sanitize(self, value): + value = super(PrintableString, self)._value_sanitize(value) + if not frozenset(value) <= self._allowable_chars: + raise DecodeError("non-printable value") + return value + + def __getstate__(self): + return PrintableStringState( + *super(PrintableString, self).__getstate__(), + **{"allowable_chars": self._allowable_chars} + ) + + def __setstate__(self, state): + super(PrintableString, self).__setstate__(state) + self._allowable_chars = state.allowable_chars + + def __call__( + self, + value=None, + bounds=None, + impl=None, + expl=None, + default=None, + optional=None, + ): + return self.__class__( + value=value, + bounds=( + (self._bound_min, self._bound_max) + if bounds is None else bounds + ), + impl=self.tag if impl is None else impl, + expl=self._expl if expl is None else expl, + default=self.default if default is None else default, + optional=self.optional if optional is None else optional, + allow_asterisk=self.allow_asterisk, + allow_ampersand=self.allow_ampersand, + ) class TeletexString(CommonString): @@ -3557,14 +4140,16 @@ class UTCTime(CommonString): datetime.datetime(2017, 9, 30, 22, 7, 50) >>> UTCTime(datetime(2057, 9, 30, 22, 7, 50)).todatetime() datetime.datetime(1957, 9, 30, 22, 7, 50) + + .. warning:: + + BER encoding is unsupported. """ __slots__ = () tag_default = tag_encode(23) encoding = "ascii" asn1_type_name = "UTCTime" - fmt = "%y%m%d%H%M%SZ" - def __init__( self, value=None, @@ -3584,11 +4169,7 @@ class UTCTime(CommonString): :param bool optional: is object ``OPTIONAL`` in sequence """ super(UTCTime, self).__init__( - impl=impl, - expl=expl, - default=default, - optional=optional, - _decoded=_decoded, + None, None, impl, expl, default, optional, _decoded, ) self._value = value if value is not None: @@ -3603,24 +4184,36 @@ class UTCTime(CommonString): if self._value is None: self._value = default + def _strptime(self, value): + # datetime.strptime's format: %y%m%d%H%M%SZ + if len(value) != LEN_YYMMDDHHMMSSZ: + raise ValueError("invalid UTCTime length") + if value[-1] != "Z": + raise ValueError("non UTC timezone") + return datetime( + 2000 + int(value[:2]), # %y + int(value[2:4]), # %m + int(value[4:6]), # %d + int(value[6:8]), # %H + int(value[8:10]), # %M + int(value[10:12]), # %S + ) + def _value_sanitize(self, value): - if isinstance(value, self.__class__): - return value._value - if isinstance(value, datetime): - return value.strftime(self.fmt).encode("ascii") if isinstance(value, binary_type): try: value_decoded = value.decode("ascii") except (UnicodeEncodeError, UnicodeDecodeError) as err: - raise DecodeError("invalid UTCTime encoding") - if len(value_decoded) == LEN_YYMMDDHHMMSSZ: - try: - datetime.strptime(value_decoded, self.fmt) - except (TypeError, ValueError): - raise DecodeError("invalid UTCTime format") - return value - else: - raise DecodeError("invalid UTCTime length") + raise DecodeError("invalid UTCTime encoding: %r" % err) + try: + self._strptime(value_decoded) + except (TypeError, ValueError) as err: + raise DecodeError("invalid UTCTime format: %r" % err) + return value + if isinstance(value, self.__class__): + return value._value + if isinstance(value, datetime): + return value.strftime("%y%m%d%H%M%SZ").encode("ascii") raise InvalidValueType((self.__class__, datetime)) def __eq__(self, their): @@ -3645,7 +4238,7 @@ class UTCTime(CommonString): having < 50 years are treated as 20xx, 19xx otherwise, according to X.509 recomendation. """ - value = datetime.strptime(self._value.decode("ascii"), self.fmt) + value = self._strptime(self._value.decode("ascii")) year = value.year % 100 return datetime( year=(2000 + year) if year < 50 else (1900 + year), @@ -3661,6 +4254,7 @@ class UTCTime(CommonString): def pps(self, decode_path=()): yield _pp( + obj=self, asn1_type_name=self.asn1_type_name, obj_name=self.__class__.__name__, decode_path=decode_path, @@ -3696,54 +4290,89 @@ class GeneralizedTime(UTCTime): '20170930220750.000123Z' >>> t = GeneralizedTime(datetime(2057, 9, 30, 22, 7, 50)) GeneralizedTime GeneralizedTime 2057-09-30T22:07:50 + + .. warning:: + + BER encoding is unsupported. + + .. warning:: + + Only microsecond fractions are supported. + :py:exc:`pyderasn.DecodeError` will be raised during decoding of + higher precision values. + + .. warning:: + + Zero year is unsupported. """ __slots__ = () tag_default = tag_encode(24) asn1_type_name = "GeneralizedTime" - fmt = "%Y%m%d%H%M%SZ" - fmt_ms = "%Y%m%d%H%M%S.%fZ" + def _strptime(self, value): + l = len(value) + if l == LEN_YYYYMMDDHHMMSSZ: + # datetime.strptime's format: %Y%m%d%H%M%SZ + if value[-1] != "Z": + raise ValueError("non UTC timezone") + return datetime( + int(value[:4]), # %Y + int(value[4:6]), # %m + int(value[6:8]), # %d + int(value[8:10]), # %H + int(value[10:12]), # %M + int(value[12:14]), # %S + ) + if l >= LEN_YYYYMMDDHHMMSSDMZ: + # datetime.strptime's format: %Y%m%d%H%M%S.%fZ + if value[-1] != "Z": + raise ValueError("non UTC timezone") + if value[14] != ".": + raise ValueError("no fractions separator") + us = value[15:-1] + if us[-1] == "0": + raise ValueError("trailing zero") + us_len = len(us) + if us_len > 6: + raise ValueError("only microsecond fractions are supported") + us = int(us + ("0" * (6 - us_len))) + decoded = datetime( + int(value[:4]), # %Y + int(value[4:6]), # %m + int(value[6:8]), # %d + int(value[8:10]), # %H + int(value[10:12]), # %M + int(value[12:14]), # %S + us, # %f + ) + return decoded + raise ValueError("invalid GeneralizedTime length") def _value_sanitize(self, value): - if isinstance(value, self.__class__): - return value._value - if isinstance(value, datetime): - return value.strftime( - self.fmt_ms if value.microsecond > 0 else self.fmt - ).encode("ascii") if isinstance(value, binary_type): try: value_decoded = value.decode("ascii") except (UnicodeEncodeError, UnicodeDecodeError) as err: - raise DecodeError("invalid GeneralizedTime encoding") - if len(value_decoded) == LEN_YYYYMMDDHHMMSSZ: - try: - datetime.strptime(value_decoded, self.fmt) - except (TypeError, ValueError): - raise DecodeError( - "invalid GeneralizedTime (without ms) format", - ) - return value - elif len(value_decoded) >= LEN_YYYYMMDDHHMMSSDMZ: - try: - datetime.strptime(value_decoded, self.fmt_ms) - except (TypeError, ValueError): - raise DecodeError( - "invalid GeneralizedTime (with ms) format", - ) - return value - else: + raise DecodeError("invalid GeneralizedTime encoding: %r" % err) + try: + self._strptime(value_decoded) + except (TypeError, ValueError) as err: raise DecodeError( - "invalid GeneralizedTime length", + "invalid GeneralizedTime format: %r" % err, klass=self.__class__, ) + return value + if isinstance(value, self.__class__): + return value._value + if isinstance(value, datetime): + encoded = value.strftime("%Y%m%d%H%M%S") + if value.microsecond > 0: + encoded = encoded + (".%06d" % value.microsecond).rstrip("0") + return (encoded + "Z").encode("ascii") raise InvalidValueType((self.__class__, datetime)) def todatetime(self): - value = self._value.decode("ascii") - if len(value) == LEN_YYYYMMDDHHMMSSZ: - return datetime.strptime(value, self.fmt) - return datetime.strptime(value, self.fmt_ms) + return self._strptime(self._value.decode("ascii")) class GraphicString(CommonString): @@ -3786,6 +4415,23 @@ class BMPString(CommonString): asn1_type_name = "BMPString" +ChoiceState = namedtuple("ChoiceState", ( + "version", + "specs", + "value", + "tag", + "expl", + "default", + "optional", + "offset", + "llen", + "vlen", + "expl_lenindef", + "lenindef", + "ber_encoded", +)) + + class Choice(Obj): """``CHOICE`` special type @@ -3859,11 +4505,9 @@ class Choice(Obj): default_obj._value = default_value self.default = default_obj if value is None: - self._value = default_obj.copy()._value + self._value = copy(default_obj._value) def _value_sanitize(self, value): - if isinstance(value, self.__class__): - return value._value if isinstance(value, tuple) and len(value) == 2: choice, obj = value spec = self.specs.get(choice) @@ -3872,6 +4516,8 @@ class Choice(Obj): if not isinstance(obj, spec.__class__): raise InvalidValueType((spec,)) return (choice, spec(obj)) + if isinstance(value, self.__class__): + return value._value raise InvalidValueType((self.__class__, tuple)) @property @@ -3885,18 +4531,36 @@ class Choice(Obj): self._value[1].bered ) - def copy(self): - obj = self.__class__(schema=self.specs) - obj._expl = self._expl - obj.default = self.default - obj.optional = self.optional - obj.offset = self.offset - obj.llen = self.llen - obj.vlen = self.vlen - value = self._value - if value is not None: - obj._value = (value[0], value[1].copy()) - return obj + def __getstate__(self): + return ChoiceState( + __version__, + self.specs, + copy(self._value), + self.tag, + self._expl, + self.default, + self.optional, + self.offset, + self.llen, + self.vlen, + self.expl_lenindef, + self.lenindef, + self.ber_encoded, + ) + + def __setstate__(self, state): + super(Choice, self).__setstate__(state) + self.specs = state.specs + self._value = state.value + self._expl = state.expl + self.default = state.default + self.optional = state.optional + self.offset = state.offset + self.llen = state.llen + self.vlen = state.vlen + self.expl_lenindef = state.expl_lenindef + self.lenindef = state.lenindef + self.ber_encoded = state.ber_encoded def __eq__(self, their): if isinstance(their, tuple) and len(their) == 2: @@ -3964,7 +4628,7 @@ class Choice(Obj): return self._value[1].encode() def _decode(self, tlv, offset, decode_path, ctx, tag_only): - for choice, spec in self.specs.items(): + for choice, spec in iteritems(self.specs): sub_decode_path = decode_path + (choice,) try: spec.decode( @@ -3974,6 +4638,7 @@ class Choice(Obj): decode_path=sub_decode_path, ctx=ctx, tag_only=True, + _ctx_immutable=False, ) except TagMismatch: continue @@ -3984,14 +4649,15 @@ class Choice(Obj): decode_path=decode_path, offset=offset, ) - if tag_only: - return + if tag_only: # pragma: no cover + return None value, tail = spec.decode( tlv, offset=offset, leavemm=True, decode_path=sub_decode_path, ctx=ctx, + _ctx_immutable=False, ) obj = self.__class__( schema=self.specs, @@ -4011,6 +4677,7 @@ class Choice(Obj): def pps(self, decode_path=()): yield _pp( + obj=self, asn1_type_name=self.asn1_type_name, obj_name=self.__class__.__name__, decode_path=decode_path, @@ -4037,9 +4704,9 @@ class PrimitiveTypes(Choice): It could be useful for general decoding of some unspecified values: - >>> PrimitiveTypes().decode(hexdec("0403666f6f"))[0].value + >>> PrimitiveTypes().decod(hexdec("0403666f6f")).value OCTET STRING 3 bytes 666f6f - >>> PrimitiveTypes().decode(hexdec("0203123456"))[0].value + >>> PrimitiveTypes().decod(hexdec("0203123456")).value INTEGER 1193046 """ __slots__ = () @@ -4067,6 +4734,22 @@ class PrimitiveTypes(Choice): )) +AnyState = namedtuple("AnyState", ( + "version", + "value", + "tag", + "expl", + "optional", + "offset", + "llen", + "vlen", + "expl_lenindef", + "lenindef", + "ber_encoded", + "defined", +)) + + class Any(Obj): """``ANY`` special type @@ -4101,12 +4784,12 @@ class Any(Obj): self.defined = None def _value_sanitize(self, value): + if isinstance(value, binary_type): + return value if isinstance(value, self.__class__): return value._value if isinstance(value, Obj): return value.encode() - if isinstance(value, binary_type): - return value raise InvalidValueType((self.__class__, Obj, binary_type)) @property @@ -4121,16 +4804,35 @@ class Any(Obj): return False return self.defined[1].bered - def copy(self): - obj = self.__class__() - obj._value = self._value - obj.tag = self.tag - obj._expl = self._expl - obj.optional = self.optional - obj.offset = self.offset - obj.llen = self.llen - obj.vlen = self.vlen - return obj + def __getstate__(self): + return AnyState( + __version__, + self._value, + self.tag, + self._expl, + self.optional, + self.offset, + self.llen, + self.vlen, + self.expl_lenindef, + self.lenindef, + self.ber_encoded, + self.defined, + ) + + def __setstate__(self, state): + super(Any, self).__setstate__(state) + self._value = state.value + self.tag = state.tag + self._expl = state.expl + self.optional = state.optional + self.offset = state.offset + self.llen = state.llen + self.vlen = state.vlen + self.expl_lenindef = state.expl_lenindef + self.lenindef = state.lenindef + self.ber_encoded = state.ber_encoded + self.defined = state.defined def __eq__(self, their): if isinstance(their, binary_type): @@ -4193,6 +4895,7 @@ class Any(Obj): decode_path=decode_path + (str(chunk_i),), leavemm=True, ctx=ctx, + _ctx_immutable=False, ) vlen += chunk.tlvlen sub_offset += chunk.tlvlen @@ -4205,7 +4908,7 @@ class Any(Obj): _decoded=(offset, 0, tlvlen), ) obj.lenindef = True - obj.tag = t + obj.tag = t.tobytes() return obj, v[EOC_LEN:] except DecodeError as err: raise err.__class__( @@ -4229,7 +4932,7 @@ class Any(Obj): optional=self.optional, _decoded=(offset, 0, tlvlen), ) - obj.tag = t + obj.tag = t.tobytes() return obj, tail def __repr__(self): @@ -4237,6 +4940,7 @@ class Any(Obj): def pps(self, decode_path=()): yield _pp( + obj=self, asn1_type_name=self.asn1_type_name, obj_name=self.__class__.__name__, decode_path=decode_path, @@ -4286,8 +4990,7 @@ def get_def_by_path(defines_by_path, sub_decode_path): def abs_decode_path(decode_path, rel_path): """Create an absolute decode path from current and relative ones - :param decode_path: current decode path, starting point. - Tuple of strings + :param decode_path: current decode path, starting point. Tuple of strings :param rel_path: relative path to ``decode_path``. Tuple of strings. If first tuple's element is "/", then treat it as an absolute path, ignoring ``decode_path`` as @@ -4309,6 +5012,23 @@ def abs_decode_path(decode_path, rel_path): return decode_path + rel_path +SequenceState = namedtuple("SequenceState", ( + "version", + "specs", + "value", + "tag", + "expl", + "default", + "optional", + "offset", + "llen", + "vlen", + "expl_lenindef", + "lenindef", + "ber_encoded", +)) + + class Sequence(Obj): """``SEQUENCE`` structure type @@ -4438,38 +5158,57 @@ class Sequence(Obj): default_obj._value = default_value self.default = default_obj if value is None: - self._value = default_obj.copy()._value + self._value = copy(default_obj._value) @property def ready(self): - for name, spec in self.specs.items(): + for name, spec in iteritems(self.specs): value = self._value.get(name) if value is None: if spec.optional: continue return False - else: - if not value.ready: - return False + if not value.ready: + return False return True @property def bered(self): if self.expl_lenindef or self.lenindef or self.ber_encoded: return True - return any(value.bered for value in self._value.values()) - - def copy(self): - obj = self.__class__(schema=self.specs) - obj.tag = self.tag - obj._expl = self._expl - obj.default = self.default - obj.optional = self.optional - obj.offset = self.offset - obj.llen = self.llen - obj.vlen = self.vlen - obj._value = {k: v.copy() for k, v in self._value.items()} - return obj + return any(value.bered for value in itervalues(self._value)) + + def __getstate__(self): + return SequenceState( + __version__, + self.specs, + {k: copy(v) for k, v in iteritems(self._value)}, + self.tag, + self._expl, + self.default, + self.optional, + self.offset, + self.llen, + self.vlen, + self.expl_lenindef, + self.lenindef, + self.ber_encoded, + ) + + def __setstate__(self, state): + super(Sequence, self).__setstate__(state) + self.specs = state.specs + self._value = state.value + self.tag = state.tag + self._expl = state.expl + self.default = state.default + self.optional = state.optional + self.offset = state.offset + self.llen = state.llen + self.vlen = state.vlen + self.expl_lenindef = state.expl_lenindef + self.lenindef = state.lenindef + self.ber_encoded = state.ber_encoded def __eq__(self, their): if not isinstance(their, self.__class__): @@ -4529,7 +5268,7 @@ class Sequence(Obj): def _encoded_values(self): raws = [] - for name, spec in self.specs.items(): + for name, spec in iteritems(self.specs): value = self._value.get(name) if value is None: if spec.optional: @@ -4558,8 +5297,8 @@ class Sequence(Obj): decode_path=decode_path, offset=offset, ) - if tag_only: - return + if tag_only: # pragma: no cover + return None lenindef = False ctx_bered = ctx.get("bered", False) try: @@ -4595,7 +5334,7 @@ class Sequence(Obj): values = {} ber_encoded = False ctx_allow_default_values = ctx.get("allow_default_values", False) - for name, spec in self.specs.items(): + for name, spec in iteritems(self.specs): if spec.optional and ( (lenindef and v[:EOC_LEN].tobytes() == EOC) or len(v) == 0 @@ -4609,9 +5348,10 @@ class Sequence(Obj): leavemm=True, decode_path=sub_decode_path, ctx=ctx, + _ctx_immutable=False, ) - except TagMismatch: - if spec.optional: + except TagMismatch as err: + if (len(err.decode_path) == len(decode_path) + 1) and spec.optional: continue raise @@ -4633,6 +5373,7 @@ class Sequence(Obj): leavemm=True, decode_path=sub_sub_decode_path, ctx=ctx, + _ctx_immutable=False, ) if len(defined_tail) > 0: raise DecodeError( @@ -4652,6 +5393,7 @@ class Sequence(Obj): leavemm=True, decode_path=sub_decode_path + (DecodePathDefBy(defined_by),), ctx=ctx, + _ctx_immutable=False, ) if len(defined_tail) > 0: raise DecodeError( @@ -4733,6 +5475,7 @@ class Sequence(Obj): def pps(self, decode_path=()): yield _pp( + obj=self, asn1_type_name=self.asn1_type_name, obj_name=self.__class__.__name__, decode_path=decode_path, @@ -4785,6 +5528,9 @@ class Set(Sequence): v = b"".join(raws) return b"".join((self.tag, len_encode(len(v)), v)) + def _specs_items(self): + return iteritems(self.specs) + def _decode(self, tlv, offset, decode_path, ctx, tag_only): try: t, tlen, lv = tag_strip(tlv) @@ -4802,7 +5548,7 @@ class Set(Sequence): offset=offset, ) if tag_only: - return + return None lenindef = False ctx_bered = ctx.get("bered", False) try: @@ -4839,11 +5585,11 @@ class Set(Sequence): ctx_allow_default_values = ctx.get("allow_default_values", False) ctx_allow_unordered_set = ctx.get("allow_unordered_set", False) value_prev = memoryview(v[:0]) - specs_items = self.specs.items + while len(v) > 0: if lenindef and v[:EOC_LEN].tobytes() == EOC: break - for name, spec in specs_items(): + for name, spec in self._specs_items(): sub_decode_path = decode_path + (name,) try: spec.decode( @@ -4853,6 +5599,7 @@ class Set(Sequence): decode_path=sub_decode_path, ctx=ctx, tag_only=True, + _ctx_immutable=False, ) except TagMismatch: continue @@ -4869,6 +5616,7 @@ class Set(Sequence): leavemm=True, decode_path=sub_decode_path, ctx=ctx, + _ctx_immutable=False, ) value_len = value.fulllen if value_prev.tobytes() > v[:value_len].tobytes(): @@ -4927,6 +5675,25 @@ class Set(Sequence): return obj, tail +SequenceOfState = namedtuple("SequenceOfState", ( + "version", + "spec", + "value", + "bound_min", + "bound_max", + "tag", + "expl", + "default", + "optional", + "offset", + "llen", + "vlen", + "expl_lenindef", + "lenindef", + "ber_encoded", +)) + + class SequenceOf(Obj): """``SEQUENCE OF`` sequence type @@ -4972,13 +5739,7 @@ class SequenceOf(Obj): optional=False, _decoded=(0, 0, 0), ): - super(SequenceOf, self).__init__( - impl, - expl, - default, - optional, - _decoded, - ) + super(SequenceOf, self).__init__(impl, expl, default, optional, _decoded) if schema is None: schema = getattr(self, "schema", None) if schema is None: @@ -5002,7 +5763,7 @@ class SequenceOf(Obj): default_obj._value = default_value self.default = default_obj if value is None: - self._value = default_obj.copy()._value + self._value = copy(default_obj._value) def _value_sanitize(self, value): if issubclass(value.__class__, SequenceOf): @@ -5028,19 +5789,41 @@ class SequenceOf(Obj): return True return any(v.bered for v in self._value) - def copy(self): - obj = self.__class__(schema=self.spec) - obj._bound_min = self._bound_min - obj._bound_max = self._bound_max - obj.tag = self.tag - obj._expl = self._expl - obj.default = self.default - obj.optional = self.optional - obj.offset = self.offset - obj.llen = self.llen - obj.vlen = self.vlen - obj._value = [v.copy() for v in self._value] - return obj + def __getstate__(self): + return SequenceOfState( + __version__, + self.spec, + [copy(v) for v in self._value], + self._bound_min, + self._bound_max, + self.tag, + self._expl, + self.default, + self.optional, + self.offset, + self.llen, + self.vlen, + self.expl_lenindef, + self.lenindef, + self.ber_encoded, + ) + + def __setstate__(self, state): + super(SequenceOf, self).__setstate__(state) + self.spec = state.spec + self._value = state.value + self._bound_min = state.bound_min + self._bound_max = state.bound_max + self.tag = state.tag + self._expl = state.expl + self.default = state.default + self.optional = state.optional + self.offset = state.offset + self.llen = state.llen + self.vlen = state.vlen + self.expl_lenindef = state.expl_lenindef + self.lenindef = state.lenindef + self.ber_encoded = state.ber_encoded def __eq__(self, their): if isinstance(their, self.__class__): @@ -5130,7 +5913,7 @@ class SequenceOf(Obj): offset=offset, ) if tag_only: - return + return None lenindef = False ctx_bered = ctx.get("bered", False) try: @@ -5178,6 +5961,7 @@ class SequenceOf(Obj): leavemm=True, decode_path=sub_decode_path, ctx=ctx, + _ctx_immutable=False, ) value_len = value.fulllen if ordering_check: @@ -5235,6 +6019,7 @@ class SequenceOf(Obj): def pps(self, decode_path=()): yield _pp( + obj=self, asn1_type_name=self.asn1_type_name, obj_name=self.__class__.__name__, decode_path=decode_path, @@ -5310,7 +6095,7 @@ def generic_decoder(): # pragma: no cover choice = PrimitiveTypes() choice.specs["SequenceOf"] = SequenceOf(schema=choice) choice.specs["SetOf"] = SetOf(schema=choice) - for i in range(31): + for i in six_xrange(31): choice.specs["SequenceOf%d" % i] = SequenceOf( schema=choice, expl=tag_ctxc(i), @@ -5324,7 +6109,7 @@ def generic_decoder(): # pragma: no cover def pprint_any( obj, - oids=None, + oid_maps=(), with_colours=False, with_decode_path=False, decode_path_only=(), @@ -5333,8 +6118,8 @@ def generic_decoder(): # pragma: no cover for pp in pps: if hasattr(pp, "_fields"): if ( - decode_path_only != () and - pp.decode_path[:len(decode_path_only)] != decode_path_only + decode_path_only != () and + pp.decode_path[:len(decode_path_only)] != decode_path_only ): continue if pp.asn1_type_name == Choice.asn1_type_name: @@ -5344,7 +6129,7 @@ def generic_decoder(): # pragma: no cover pp = _pp(**pp_kwargs) yield pp_console_row( pp, - oids=oids, + oid_maps=oid_maps, with_offsets=True, with_blob=False, with_colours=with_colours, @@ -5352,8 +6137,8 @@ def generic_decoder(): # pragma: no cover decode_path_len_decrease=len(decode_path_only), ) for row in pp_console_blob( - pp, - decode_path_len_decrease=len(decode_path_only), + pp, + decode_path_len_decrease=len(decode_path_only), ): yield row else: @@ -5374,7 +6159,7 @@ def main(): # pragma: no cover ) parser.add_argument( "--oids", - help="Python path to dictionary with OIDs", + help="Python paths to dictionary with OIDs, comma separated", ) parser.add_argument( "--schema", @@ -5412,7 +6197,10 @@ def main(): # pragma: no cover args.DERFile.seek(args.skip) der = memoryview(args.DERFile.read()) args.DERFile.close() - oids = obj_by_path(args.oids) if args.oids else {} + oid_maps = ( + [obj_by_path(_path) for _path in (args.oids or "").split(",")] + if args.oids else () + ) if args.schema: schema = obj_by_path(args.schema) from functools import partial @@ -5428,8 +6216,8 @@ def main(): # pragma: no cover obj, tail = schema().decode(der, ctx=ctx) print(pprinter( obj, - oids=oids, - with_colours=True if environ.get("NO_COLOR") is None else False, + oid_maps=oid_maps, + with_colours=environ.get("NO_COLOR") is None, with_decode_path=args.print_decode_path, decode_path_only=( () if args.decode_path_only is None else