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Revision 27079, 0.9 kB
(checked in by therve, 2 days ago)
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Merge dsa-key-failure-3391-2
Authors: z3p, therve
Reviewers: glyph, jml
Fixes #3391
Replace Conch custom ASN1 parser by pyasn1. It introduces a new dependency for
Conch, and solve a bunch of problems related to the previously custom parser.
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""" |
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A basic ASN.1 parser. Deprecated since Twisted 9.0 in favor of PyASN1. |
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Maintainer: Paul Swartz |
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""" |
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import itertools |
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from pyasn1.type import univ |
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from pyasn1.codec.ber import decoder, encoder |
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from twisted.python.deprecate import deprecated |
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from twisted.python import versions |
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Twisted9point0 = versions.Version('Twisted', 9, 0, 0) |
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def parse(data): |
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return decoder.decode(data)[0] |
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parse = deprecated(Twisted9point0)(parse) |
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def pack(data): |
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asn1Sequence = univ.Sequence() |
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for index, value in itertools.izip(itertools.count(), data): |
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try: |
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valueAsInteger = univ.Integer(value) |
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except TypeError: |
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raise ValueError("cannot pack %r" % (value,)) |
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asn1Sequence.setComponentByPosition(index, univ.Integer(value)) |
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return encoder.encode(asn1Sequence) |
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pack = deprecated(Twisted9point0)(pack) |
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