The manual flow is: paste a profile URL into JDownloader, paste the /reels URL
separately (the profile page misses some reels), set the output folder by hand,
repeat per profile. scripts/jd2-sync.ts emits one crawljob per source with the
folder already pointed at the right directory, so folder-watch picks up the
whole batch at once.
Profiles and sidecars are derived with the same grouping logic the server uses,
so output folders always match what the viewer expects to find. --download-base
maps the path for a JDownloader running on another machine (Windows paths
included), since it typically runs on a desktop against the share.
Directories that aren't Instagram profiles are skipped: an archive root also
collects tool output and exports from other services, and pointing a crawl at
those spends requests on instagram.com to be told the profile doesn't exist —
exactly the traffic worth not spending. Filtering is by username shape, plus
--skip and a .jd2ignore file for names that look like usernames but aren't.
Defaults are conservative: chunks=1, because multi-chunk ranged requests are the
one CDN-side pattern that doesn't resemble a browser, and links park in the
LinkGrabber for review rather than auto-starting.
Only posts and reels are emitted; highlight URLs need a numeric id and story
URLs expire, so those stay manual.
Format verified against JDownloader's own explain.txt for the folderwatch
extension, read from the daily SVN mirror rather than one of the decade-stale
GitHub copies.
Also refreshes CLAUDE.md, whose URL-state section still described the query
parameters replaced in 1.4.0, and documents the mobile feed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011uBWhwV3wFQ5MBCcMHHem7
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
