Datasets:
| """Verify every downloaded cache file against its original SHA-256.""" | |
| from pathlib import Path | |
| import argparse, hashlib, json | |
| EXPECTED = "281e4e8672ea7a47bb1e569e1e0c435b59a331be1352a1604b292a924ca2fe59" | |
| def digest(path): | |
| h = hashlib.sha256() | |
| with path.open("rb") as f: | |
| for block in iter(lambda: f.read(8 * 1024**2), b""): h.update(block) | |
| return h.hexdigest() | |
| def verify(cache): | |
| cache = Path(cache).resolve() | |
| if digest(cache / "manifest.json") != EXPECTED: raise ValueError("Unexpected manifest") | |
| manifest = json.loads((cache / "manifest.json").read_text()) | |
| for row in manifest["frames"]: | |
| path = (cache / row["path"]).resolve() | |
| if not path.is_relative_to(cache): raise ValueError("Unsafe manifest path") | |
| if digest(path) != row["sha256"]: raise ValueError(f"Hash mismatch: {row['path']}") | |
| print(f"PASS: {len(manifest['frames'])} files match the original frozen cache.") | |
| if __name__ == "__main__": | |
| p=argparse.ArgumentParser(); p.add_argument("--cache",type=Path,default=Path(__file__).resolve().parent/"frozen_depth") | |
| verify(p.parse_args().cache) | |