Vision-Lab/check_local_links.py at main · UConnAI/Vision-Lab · GitHub

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
"""Offline participant-page dependency audit. Reads files; never makes requests.

Checks linked HTML pages/anchors, src/poster assets, CSS URLs, static relative
module imports, import.meta.url assets and the declared runtime sample files.
Dynamic application behavior and external URLs require separate verification.
Run from any directory: python path/to/vision-lab-cnn/check_local_links.py
"""
from collections import deque
from html.parser import HTMLParser
import json
from pathlib import Path
import re
from urllib.parse import unquote, urlsplit

ROOT = Path(__file__).resolve().parent
PAGES = ("start.html", "lecture.html", "explore.html", "index.html", "take-home-code/index.html")
RUNTIME = (
    "vendor/gesture_recognizer.task", "vendor/vision_bundle.mjs",
    "vendor/wasm/vision_wasm_internal.js", "vendor/wasm/vision_wasm_internal.wasm",
    "vendor/wasm/vision_wasm_nosimd_internal.js", "vendor/wasm/vision_wasm_nosimd_internal.wasm",
    "prompts.json",
    "take-home-football-tracker/vendor/model/model.json",
    "take-home-football-tracker/vendor/model-v1/model.json",
)


class Page(HTMLParser):
    def __init__(self, text):
        super().__init__()
        self.ids, self.references = set(), []
        self.feed(text)

    def handle_starttag(self, tag, attrs):
        attrs = dict(attrs)
        if attrs.get("id"):
            self.ids.add(attrs["id"])
        for name in ("href", "src", "poster"):
            if attrs.get(name):
                self.references.append(attrs[name])


def audit(root=ROOT):
    root = Path(root).resolve()
    pending = deque(root / name for name in PAGES)
    scanned, assets, external, errors = set(), set(), set(), []
    pages = {}
    reference_count = 0

    def read_page(path):
        if path not in pages:
            pages[path] = Page(path.read_text(encoding="utf-8-sig"))
        return pages[path]

    def reference(source, value):
        nonlocal reference_count
        if not value or value.startswith(("data:", "blob:", "javascript:")):
            return
        parsed = urlsplit(value)
        if parsed.scheme or parsed.netloc:
            external.add(value)
            return
        reference_count += 1
        decoded = unquote(parsed.path)
        target = ((root / decoded.lstrip("/")) if decoded.startswith("/") else source.parent / decoded).resolve() if decoded else source
        if not target.is_relative_to(root):
            errors.append(f"{source.relative_to(root)} -> {value}: outside workshop root")
            return
        if not target.exists():
            errors.append(f"{source.relative_to(root)} -> {value}: missing")
            return
        assets.add(target)
        if target.suffix.lower() in (".html", ".htm") and target.is_file():
            if parsed.fragment and unquote(parsed.fragment) not in read_page(target).ids:
                errors.append(f"{source.relative_to(root)} -> {value}: missing static anchor")
        if target.suffix.lower() in (".html", ".htm", ".css", ".mjs") and target.is_file():
            pending.append(target)

    # Model/WASM selection and sample lookup happen dynamically in the browser.
    for name in RUNTIME:
        reference(root / "index.html", name)
        if name.endswith("/model.json") and (root / name).is_file():
            model_path = root / name
            model = json.loads(model_path.read_text(encoding="utf-8"))
            for group in model.get("weightsManifest", []):
                for shard in group["paths"]:
                    reference(model_path, shard)
    manifest = root / "take-home-code/data/provenance.json"
    reference(root / "index.html", str(manifest.relative_to(root)).replace("\\", "/"))
    if manifest.is_file():
        for sample in json.loads(manifest.read_text(encoding="utf-8")).values():
            if not isinstance(sample, dict) or "video" not in sample:
                continue
            for key in ("video", "positions", "sourceMeasurements"):
                if sample.get(key):
                    reference(manifest, sample[key])

    while pending:
        source = pending.popleft()
        if source in scanned:
            continue
        scanned.add(source)
        if not source.is_file():
            errors.append(f"{source.relative_to(root)}: missing entry page")
            continue
        suffix = source.suffix.lower()
        if suffix in (".html", ".htm"):
            refs = read_page(source).references
        else:
            text = source.read_text(encoding="utf-8-sig")
            if suffix == ".css":
                refs = re.findall(r"url\(\s*['\"]?([^'\")\s]+)", text)
                refs += re.findall(r"@import\s+['\"]([^'\"]+)", text)
            else:
                refs = re.findall(r"\bfrom\s*['\"](\.[^'\"]+)['\"]", text)
                refs += re.findall(r"\bimport\s*(?:\(\s*)?['\"](\.[^'\"]+)['\"]", text)
                refs += re.findall(r"new URL\(\s*['\"]([^'\"]+)['\"]\s*,\s*import\.meta\.url", text)
        for ref in refs:
            reference(source, ref)
    return {"html_pages": len(pages), "scanned_sources": len(scanned),
            "local_references": reference_count, "existing_local_targets": len(assets),
            "external_urls_not_requested": sorted(external), "errors": errors}


if __name__ == "__main__":
    result = audit()
    print(json.dumps(result, indent=2))
    print("Offline static check only: no external URLs requested; no browser interaction, dynamic fetch, camera, model execution or downloads tested.")
    raise SystemExit(bool(result["errors"]))