codekingpro/portable-devtools

1#2# This file is part of pyasn1 software.3#4# Copyright (c) 2005-2020, Ilya Etingof <etingof@gmail.com>5# License: https://pyasn1.readthedocs.io/en/latest/license.html6#7 8 9class PyAsn1Error(Exception):10    """Base pyasn1 exception11 12    `PyAsn1Error` is the base exception class (based on13    :class:`Exception`) that represents all possible ASN.1 related14    errors.15 16    Parameters17    ----------18    args:19        Opaque positional parameters20 21    Keyword Args22    ------------23    kwargs:24        Opaque keyword parameters25 26    """27    def __init__(self, *args, **kwargs):28        self._args = args29        self._kwargs = kwargs30 31    @property32    def context(self):33        """Return exception context34 35        When exception object is created, the caller can supply some opaque36        context for the upper layers to better understand the cause of the37        exception.38 39        Returns40        -------41        : :py:class:`dict`42            Dict holding context specific data43        """44        return self._kwargs.get('context', {})45 46 47class ValueConstraintError(PyAsn1Error):48    """ASN.1 type constraints violation exception49 50    The `ValueConstraintError` exception indicates an ASN.1 value51    constraint violation.52 53    It might happen on value object instantiation (for scalar types) or on54    serialization (for constructed types).55    """56 57 58class SubstrateUnderrunError(PyAsn1Error):59    """ASN.1 data structure deserialization error60 61    The `SubstrateUnderrunError` exception indicates insufficient serialised62    data on input of a de-serialization codec.63    """64 65 66class EndOfStreamError(SubstrateUnderrunError):67    """ASN.1 data structure deserialization error68 69    The `EndOfStreamError` exception indicates the condition of the input70    stream has been closed.71    """72 73 74class UnsupportedSubstrateError(PyAsn1Error):75    """Unsupported substrate type to parse as ASN.1 data."""76 77 78class PyAsn1UnicodeError(PyAsn1Error, UnicodeError):79    """Unicode text processing error80 81    The `PyAsn1UnicodeError` exception is a base class for errors relating to82    unicode text de/serialization.83 84    Apart from inheriting from :class:`PyAsn1Error`, it also inherits from85    :class:`UnicodeError` to help the caller catching unicode-related errors.86    """87    def __init__(self, message, unicode_error=None):88        if isinstance(unicode_error, UnicodeError):89            UnicodeError.__init__(self, *unicode_error.args)90        PyAsn1Error.__init__(self, message)91 92 93class PyAsn1UnicodeDecodeError(PyAsn1UnicodeError, UnicodeDecodeError):94    """Unicode text decoding error95 96    The `PyAsn1UnicodeDecodeError` exception represents a failure to97    deserialize unicode text.98 99    Apart from inheriting from :class:`PyAsn1UnicodeError`, it also inherits100    from :class:`UnicodeDecodeError` to help the caller catching unicode-related101    errors.102    """103 104 105class PyAsn1UnicodeEncodeError(PyAsn1UnicodeError, UnicodeEncodeError):106    """Unicode text encoding error107 108    The `PyAsn1UnicodeEncodeError` exception represents a failure to109    serialize unicode text.110 111    Apart from inheriting from :class:`PyAsn1UnicodeError`, it also inherits112    from :class:`UnicodeEncodeError` to help the caller catching113    unicode-related errors.114    """115 116 117