File size: 7,193 Bytes
901a5f5 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 | from __future__ import annotations
import csv
import hashlib
import json
from pathlib import Path
import pytest
from verify_archive import verify_archive
def _write_archive(root: Path) -> None:
for relative, content in {
"images/example.png": b"image",
"results/metrics.csv": b"condition,success\npng,1\n",
"samples/example.png": b"sample",
"weights/model.png": b"weights",
}.items():
path = root / relative
path.parent.mkdir(parents=True, exist_ok=True)
path.write_bytes(content)
rows = []
for relative in ("weights/model.png",):
path = root / relative
rows.append(
{
"path": relative,
"bytes": str(path.stat().st_size),
"sha256": hashlib.sha256(path.read_bytes()).hexdigest(),
}
)
with (root / "weights/manifest.csv").open("w", newline="", encoding="utf-8") as handle:
writer = csv.DictWriter(handle, fieldnames=["path", "bytes", "sha256"])
writer.writeheader()
writer.writerows(rows)
manifest = {
"files": [
{
"path": relative,
"bytes": (root / relative).stat().st_size,
"sha256": hashlib.sha256((root / relative).read_bytes()).hexdigest(),
}
for relative in (
"images/example.png",
"results/metrics.csv",
"samples/example.png",
"weights/manifest.csv",
)
]
}
(root / "results/archive_manifest.json").write_text(json.dumps(manifest), encoding="utf-8")
def _refresh_manifest(root: Path) -> None:
manifest_path = root / "results/archive_manifest.json"
manifest = json.loads(manifest_path.read_text(encoding="utf-8"))
manifest.pop("files", None)
manifest["artifacts"] = []
for path in sorted(p for directory in ("images", "results", "samples", "weights")
for p in (root / directory).rglob("*") if p.is_file() and p.name != "archive_manifest.json"):
relative = path.relative_to(root).as_posix()
manifest["artifacts"].append({"path": relative, "bytes": path.stat().st_size,
"sha256": hashlib.sha256(path.read_bytes()).hexdigest()})
manifest.update({"profile": "test", "prompt_count": 1, "conditions": ["png_baseline", "webp_lossless"]})
manifest_path.write_text(json.dumps(manifest), encoding="utf-8")
def _add_generation_rows(root: Path) -> None:
sample = root / "samples/example.png"
rows = [
{"row_type": "generation", "condition": "png_baseline", "prompt_id": "p1", "success": True,
"sample_path": "samples/example.png", "sample_bytes": sample.stat().st_size,
"sample_hash": hashlib.sha256(sample.read_bytes()).hexdigest(), "sample_sha256": None},
{"row_type": "generation", "condition": "webp_lossless", "prompt_id": "p1", "success": False,
"sample_path": None, "sample_bytes": None, "sample_hash": None, "sample_sha256": None},
]
(root / "results/raw_rows.jsonl").write_text("".join(json.dumps(row) + "\n" for row in rows), encoding="utf-8")
_refresh_manifest(root)
def test_verify_archive_accepts_hash_and_containment_valid_archive(tmp_path: Path) -> None:
_write_archive(tmp_path)
_add_generation_rows(tmp_path)
report = verify_archive(tmp_path)
assert report["checked_files"] == 7
assert report["checked_weight_entries"] == 1
assert report["generation_rows"] == 2
assert report["successful_samples"] == 1
def test_verify_archive_rejects_path_escape(tmp_path: Path) -> None:
_write_archive(tmp_path)
_add_generation_rows(tmp_path)
manifest_path = tmp_path / "results/archive_manifest.json"
manifest = json.loads(manifest_path.read_text(encoding="utf-8"))
manifest["artifacts"].append({"path": "../outside", "bytes": 0, "sha256": ""})
manifest_path.write_text(json.dumps(manifest), encoding="utf-8")
with pytest.raises(ValueError, match="containment"):
verify_archive(tmp_path)
@pytest.mark.parametrize("mutation, message", [
("missing", "sample"),
("hash", "SHA-256"),
("bytes", "byte count"),
])
def test_verify_archive_rejects_invalid_success_provenance(tmp_path: Path, mutation: str, message: str) -> None:
_write_archive(tmp_path)
_add_generation_rows(tmp_path)
raw = tmp_path / "results/raw_rows.jsonl"
row = json.loads(raw.read_text(encoding="utf-8").splitlines()[0])
if mutation == "missing":
row["sample_path"] = None
elif mutation == "hash":
row["sample_hash"] = "0" * 64
else:
row["sample_bytes"] += 1
raw.write_text(json.dumps(row) + "\n" + raw.read_text(encoding="utf-8").splitlines()[1] + "\n", encoding="utf-8")
_refresh_manifest(tmp_path)
with pytest.raises(ValueError, match=message):
verify_archive(tmp_path)
def test_verify_archive_rejects_failed_row_with_sample(tmp_path: Path) -> None:
_write_archive(tmp_path)
_add_generation_rows(tmp_path)
raw = tmp_path / "results/raw_rows.jsonl"
rows = [json.loads(line) for line in raw.read_text(encoding="utf-8").splitlines()]
rows[1]["sample_path"] = "samples/example.png"
raw.write_text("\n".join(json.dumps(row) for row in rows) + "\n", encoding="utf-8")
_refresh_manifest(tmp_path)
with pytest.raises(ValueError, match="failed row"):
verify_archive(tmp_path)
def test_verify_archive_rejects_raw_rows_symlink(tmp_path: Path) -> None:
_write_archive(tmp_path)
_add_generation_rows(tmp_path)
raw = tmp_path / "results/raw_rows.jsonl"
raw.unlink()
raw.symlink_to(tmp_path / "outside.jsonl")
(tmp_path / "outside.jsonl").write_text("", encoding="utf-8")
with pytest.raises(ValueError, match="symlink"):
verify_archive(tmp_path)
def test_verify_archive_rejects_duplicate_manifest_path(tmp_path: Path) -> None:
_write_archive(tmp_path)
_add_generation_rows(tmp_path)
manifest_path = tmp_path / "results/archive_manifest.json"
manifest = json.loads(manifest_path.read_text(encoding="utf-8"))
manifest["artifacts"].append(manifest["artifacts"][0])
manifest_path.write_text(json.dumps(manifest), encoding="utf-8")
with pytest.raises(ValueError, match="duplicate archive path"):
verify_archive(tmp_path)
def test_verify_archive_rejects_listed_hash_tamper(tmp_path: Path) -> None:
_write_archive(tmp_path)
_add_generation_rows(tmp_path)
path = tmp_path / "samples/example.png"
path.write_bytes(b"tampeR")
with pytest.raises(ValueError, match="SHA-256"):
verify_archive(tmp_path)
def test_verify_archive_rejects_archived_tree_symlink_and_unlisted_file(tmp_path: Path) -> None:
_write_archive(tmp_path)
_add_generation_rows(tmp_path)
extra = tmp_path / "samples/unlisted.bin"
extra.write_bytes(b"extra")
with pytest.raises(ValueError, match="unlisted"):
verify_archive(tmp_path)
extra.unlink()
extra.symlink_to(tmp_path / "weights/model.png")
with pytest.raises(ValueError, match="symlink"):
verify_archive(tmp_path)
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