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add assertion to key_factory, fail early with zero-len manifest data

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Thomas Waldmann 2022-09-21 09:06:59 +02:00
parent 8c9fed105d
commit a07c93d7f4
1 changed files with 1 additions and 0 deletions
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src/borg/crypto/key.py
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@ -110,6 +110,7 @@ def identify_key(manifest_data):
def key_factory(repository, manifest_chunk, *, ro_cls=RepoObj): def key_factory(repository, manifest_chunk, *, ro_cls=RepoObj):
manifest_data = ro_cls.extract_crypted_data(manifest_chunk) manifest_data = ro_cls.extract_crypted_data(manifest_chunk)
assert manifest_data, "manifest data must not be zero bytes long"
return identify_key(manifest_data).detect(repository, manifest_data) return identify_key(manifest_data).detect(repository, manifest_data)