| """Verify the LIBERO-Pro asset ZIP or its extracted assets directory.""" |
|
|
| import argparse |
| import hashlib |
| import json |
| import zipfile |
| from pathlib import Path, PurePosixPath |
|
|
|
|
| def file_hash(path): |
| checksum = hashlib.sha256() |
| with path.open("rb") as stream: |
| for block in iter(lambda: stream.read(1024 * 1024), b""): |
| checksum.update(block) |
| return checksum.hexdigest() |
|
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|
|
| def main(): |
| parser = argparse.ArgumentParser(description=__doc__) |
| parser.add_argument("--manifest", type=Path, required=True) |
| source = parser.add_mutually_exclusive_group(required=True) |
| source.add_argument("--archive", type=Path) |
| source.add_argument("--assets-dir", type=Path) |
| args = parser.parse_args() |
| manifest = json.loads(args.manifest.read_text(encoding="utf-8")) |
| records = manifest["files"] |
| names = [record["path"] for record in records] |
| if len(records) != manifest["file_count"] or len(set(names)) != len(names): |
| raise ValueError("Manifest count or unique paths mismatch") |
| for name in names: |
| path = PurePosixPath(name) |
| if path.is_absolute() or ".." in path.parts or path.parts[0] != "assets": |
| raise ValueError("Invalid manifest path: " + name) |
| if args.archive: |
| expected = manifest["archive"] |
| if args.archive.stat().st_size != expected["bytes"] or file_hash(args.archive) != expected["sha256"]: |
| raise ValueError("Archive checksum mismatch") |
| with zipfile.ZipFile(args.archive) as archive: |
| if len(archive.infolist()) != len(records) or set(archive.namelist()) != set(names): |
| raise ValueError("Archive file inventory mismatch") |
| for record in records: |
| data = archive.read(record["path"]) |
| if len(data) != record["bytes"] or hashlib.sha256(data).hexdigest() != record["sha256"]: |
| raise ValueError("Asset checksum mismatch: " + record["path"]) |
| else: |
| root = args.assets_dir.resolve() |
| for record in records: |
| path = root.joinpath(*PurePosixPath(record["path"]).parts[1:]).resolve() |
| if root not in path.parents or not path.is_file(): |
| raise ValueError("Missing or invalid extracted asset: " + record["path"]) |
| if path.stat().st_size != record["bytes"] or file_hash(path) != record["sha256"]: |
| raise ValueError("Extracted asset checksum mismatch: " + record["path"]) |
| print("Verified {} files from source commit {}".format(len(records), manifest["source_commit"])) |
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|
|
| if __name__ == "__main__": |
| main() |
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|
