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Fix CodeQL atmos error #2160

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Merged
micafer merged 1 commit into from
Jul 20, 2026
Merged

Fix CodeQL atmos error #2160

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3 changes: 3 additions & 0 deletions libcloud/storage/drivers/atmos.py
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Original file line number Diff line number Diff line change
Expand Up @@ -109,6 +109,9 @@ def _calculate_signature(self, params, headers):
signature.extend([k + ":" + collapse(v) for k, v in xhdrs])
signature = "\n".join(signature)
key = base64.b64decode(self.key)
# The Atmos REST authentication protocol mandates HMAC-SHA1. Using a
# different digest would produce signatures the service cannot verify.
# codeql[py/weak-sensitive-data-hashing]
signature = hmac.new(b(key), b(signature), hashlib.sha1).digest()

return base64.b64encode(b(signature)).decode("utf-8")
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