fix: security, performance and correctness pass; add sidecar archive support

Security
- Fix path traversal in GET /api/archives/:name/files. Express decodes route
  params after segment matching, so `..%2f..%2fetc` escaped ARCHIVES_DIR and
  returned a recursive listing of arbitrary directories.
- Add CSP and baseline security headers; disable x-powered-by.
- Stop baking GEMINI_API_KEY into the client bundle (the SDK was unused).
- Run the container as `node` instead of root.

Performance
- Add a directory-mtime-keyed archive index, warmed in the background and
  persisted. Listing 110k files went from ~52s to ~0.1s; the largest archive
  (24k files) serves in ~0.3s. Per-file stat over CIFS costs ~1.4ms and does
  not parallelise, so it is now done once rather than per request.
- Build media URLs from the File directly instead of
  `new Blob([await file.arrayBuffer()])`, which read every media file fully
  into memory (a 20GB archive tried to become 20GB of resident blobs).
- Track and revoke object URLs; previously none were ever revoked.
- Give `requestThumbnail` a stable identity so a completed thumbnail stops
  re-running the effect in every mounted thumbnail.
- Namespace IndexedDB keys so listing archives no longer deserializes every
  cached thumbnail blob, and thumbnails no longer collide across archives.
- Serve real file sizes: RemoteArchiveFile was constructed with size 0, which
  silently disabled high-res thumbnailing for every server archive.

Correctness
- Local archives cached media as blob: URLs, which die with the document, so
  a cached local archive restored as an archive of broken images. Media now
  carries a stable path and is rehydrated from a persisted directory handle
  (File System Access API), falling back to re-prompting for the folder.
- Fix permalinks: the URL-writing effect erased ?a= on mount before the
  archive list arrived to consume it, so deep links never resolved.
- Make cache invalidation detect nested changes via a directory signature.
- Add an error boundary and tolerate unparseable dates, which previously
  threw a RangeError and blanked the app.
- Default video to muted so autoplay is not blocked by Safari/Firefox.

Features
- Fold sidecar directories into their base profile: `<user> - reels`,
  `story - <user>` and `story highlights - <user> - <title>` now appear as
  reels, the story ring and Instagram-style highlight circles rather than as
  separate archives.

Housekeeping
- Add @types/react; React was previously type-checked against its JavaScript
  source, so `npm run lint` gave almost no type safety on components.
- Vendor fonts and PWA icons locally; the app made third-party CDN requests
  despite advertising offline support and local-only processing.
- Drop unused better-sqlite3 (a native module that broke `npm install`).
- Add vitest with 36 tests over the filename and directory-naming rules.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011uBWhwV3wFQ5MBCcMHHem7
This commit is contained in:
ergosteur
2026-08-14 01:59:19 -04:00
co-authored by Claude Opus 5
parent b30285fe70
commit 1b4aba54d6
38 changed files with 2291 additions and 1638 deletions
+100 -71
View File
@@ -4,6 +4,7 @@ import path from 'path';
import { fileURLToPath } from 'url';
import dotenv from 'dotenv';
import os from 'os';
import { ArchiveIndex } from './src/lib/archive-index.js';
dotenv.config();
@@ -31,56 +32,85 @@ if (!fs.existsSync(ARCHIVES_DIR)) {
console.log(`[Server] Archives directory exists.`);
}
const INDEX_PATH = process.env.ARCHIVE_INDEX_PATH
|| path.join(process.env.CACHE_DIR || os.tmpdir(), 'instaarchive-index.json');
const index = new ArchiveIndex(ARCHIVES_DIR, INDEX_PATH);
// Warm in the background: the first walk of a large archive root is slow, but
// everything after it is served from directory-mtime-keyed cache.
index.load()
.then(() => index.warm())
.catch(err => console.error('[Index] Warm failed:', err));
// Don't advertise the framework.
app.disable('x-powered-by');
/**
* Baseline security headers.
*
* The CSP allows blob: and data: because archive media is rendered from object
* URLs and cached thumbnails, and 'unsafe-inline' for styles because the
* animation library sets inline styles. Scripts stay restricted to same-origin,
* and no third-party origins are permitted at all — the app bundles its own
* fonts and icons.
*/
app.use((req, res, next) => {
res.setHeader('X-Content-Type-Options', 'nosniff');
res.setHeader('X-Frame-Options', 'SAMEORIGIN');
res.setHeader('Referrer-Policy', 'no-referrer');
res.setHeader('Cross-Origin-Resource-Policy', 'same-origin');
res.setHeader('Permissions-Policy', 'geolocation=(), microphone=(), camera=(), interest-cohort=()');
res.setHeader('Content-Security-Policy', [
"default-src 'self'",
"img-src 'self' blob: data:",
"media-src 'self' blob: data:",
"script-src 'self'",
"style-src 'self' 'unsafe-inline'",
"font-src 'self'",
"connect-src 'self'",
"worker-src 'self' blob:",
"frame-ancestors 'self'",
"object-src 'none'",
"base-uri 'self'",
"form-action 'self'",
].join('; '));
next();
});
app.use(express.json());
// API: List archives (subdirectories in ARCHIVES_DIR)
/**
* Resolve a user-supplied archive name to an absolute path inside ARCHIVES_DIR.
*
* Express decodes route params *after* segment matching, so a name like
* `..%2f..%2fetc` arrives here as `../../etc` and would otherwise escape the
* archives root. Returns null for anything that resolves outside it.
*/
const resolveArchivePath = (archiveName: string): string | null => {
if (!archiveName || archiveName.includes('\0')) return null;
const resolved = path.resolve(ARCHIVES_DIR, archiveName);
if (resolved !== ARCHIVES_DIR && !resolved.startsWith(ARCHIVES_DIR + path.sep)) {
console.warn(`[Security] Rejected archive name escaping ARCHIVES_DIR: ${archiveName}`);
return null;
}
return resolved;
};
// API: List archives, grouped by profile. Costs one stat per source directory.
app.get('/api/archives', (req, res) => {
try {
console.log(`[API] Listing archives from ${ARCHIVES_DIR}...`);
const items = fs.readdirSync(ARCHIVES_DIR, { withFileTypes: true });
console.log(`[API] Found ${items.length} total items in archives directory.`);
const archives = items
.filter(item => {
const isDir = item.isDirectory();
const isHidden = item.name.startsWith('.') || item.name.startsWith('@') || item.name.startsWith('_');
if (!isDir) return false;
if (isHidden) {
console.log(`[API] Skipping system/hidden directory: ${item.name}`);
return false;
}
return true;
})
.map(item => {
// Try to find a profile pic or first image for the thumbnail
const archivePath = path.join(ARCHIVES_DIR, item.name);
try {
const files = fs.readdirSync(archivePath);
console.log(`[API] Found archive: ${item.name} (${files.length} files)`);
let thumbnail = '';
const profilePic = files.find(f => f.toLowerCase().includes('_profile_pic.jpg') || f.toLowerCase() === `${item.name.toLowerCase()}.jpg`);
if (profilePic) {
thumbnail = `/archives/${item.name}/${profilePic}`;
} else {
const firstImage = files.find(f => /\.(jpg|jpeg|png|webp)$/i.test(f));
if (firstImage) thumbnail = `/archives/${item.name}/${firstImage}`;
}
return {
name: item.name,
thumbnail,
path: item.name,
fileCount: files.length
};
} catch (e) {
console.error(`[API] Could not read subdirectory ${item.name}:`, e);
return null;
}
})
.filter(Boolean);
console.log(`[API] Returning ${archives.length} validated archives.`);
const groups = index.groups();
const archives = Array.from(groups.entries()).map(([owner, sources]) => ({
name: owner,
thumbnail: index.thumbnailFor(owner, sources),
path: owner,
// Null until that profile has been indexed; the client treats it as unknown.
fileCount: index.countFor(sources),
// Directory mtimes: cheap to compute and enough to invalidate a stale cache.
signature: index.signatureFor(sources),
sources,
}));
console.log(`[API] Returning ${archives.length} archives.`);
res.json(archives);
} catch (err: any) {
if (err.code === 'EACCES') {
@@ -93,33 +123,26 @@ app.get('/api/archives', (req, res) => {
}
});
// API: List all files in an archive (recursive)
app.get('/api/archives/:name/files', (req, res) => {
/**
* List every file belonging to a profile, across its base and sidecar dirs.
*
* Paths are relative to ARCHIVES_DIR (so they include the source directory) and
* each entry carries its source kind, letting the client route posts, reels,
* stories and highlights without re-deriving the naming rules.
*
* Served from the directory index; only a directory whose mtime changed is
* re-walked.
*/
app.get('/api/archives/:name/files', async (req, res) => {
const archiveName = req.params.name;
const archivePath = path.join(ARCHIVES_DIR, archiveName);
if (!fs.existsSync(archivePath)) {
return res.status(404).json({ error: 'Archive not found' });
if (!resolveArchivePath(archiveName)) {
return res.status(400).json({ error: 'Invalid archive name' });
}
try {
const walk = (dir: string, base: string = ''): string[] => {
let results: string[] = [];
const list = fs.readdirSync(dir);
list.forEach(file => {
const filePath = path.join(dir, file);
const relativePath = path.join(base, file);
const stat = fs.statSync(filePath);
if (stat && stat.isDirectory()) {
results = results.concat(walk(filePath, relativePath));
} else {
results.push(relativePath);
}
});
return results;
};
const files = walk(archivePath);
const files = await index.filesFor(archiveName);
if (!files) return res.status(404).json({ error: 'Archive not found' });
void index.save();
res.json(files);
} catch (err) {
console.error('Error listing files:', err);
@@ -127,8 +150,14 @@ app.get('/api/archives/:name/files', (req, res) => {
}
});
// Serve archive files
app.use('/archives', express.static(ARCHIVES_DIR));
// Serve archive files. Archive contents are immutable in practice, so cache
// them aggressively; the client busts its own cache via fileCount.
app.use('/archives', express.static(ARCHIVES_DIR, {
maxAge: '1y',
immutable: true,
index: false,
dotfiles: 'ignore',
}));
// Serve production frontend
const distPath = path.join(__dirname, 'dist');