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Code Issues Releases Wiki Activity

Prepare for future payload format change

This commit is contained in:
Jonas Borgström 2014-12-17 21:55:33 +01:00
parent e9c27e8e6d
commit add59e4ab3
1 changed files with 6 additions and 2 deletions
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8
attic/key.py
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@ -8,11 +8,15 @@ from hashlib import sha256
import zlib
from attic.crypto import pbkdf2_sha256, get_random_bytes, AES, bytes_to_long, long_to_bytes, bytes_to_int, num_aes_blocks
from attic.helpers import IntegrityError, get_keys_dir
from attic.helpers import IntegrityError, get_keys_dir, Error
PREFIX = b'\0' * 8
class UnsupportedPayloadError(Error):
"""Unsupported payload type {}. A newer version is required to access this repository.
"""
class HMAC(hmac.HMAC):
"""Workaround a bug in Python < 3.4 Where HMAC does not accept memoryviews
"""
@ -37,7 +41,7 @@ def key_factory(repository, manifest_data):
elif manifest_data[0] == PlaintextKey.TYPE:
return PlaintextKey.detect(repository, manifest_data)
else:
raise Exception('Unkown Key type %d' % ord(manifest_data[0]))
raise UnsupportedPayloadError(manifest_data[0])
class KeyBase(object):