jozamudi
2c203990bc
- app.py + upstream.py -> server/ (relative import, __init__.py) - static/ resolved relative to repo root, works from any CWD - watch history migrated to server/data/history.json - README.md: quick start, features, layout, dev notes - SPEC.md: marked implemented, updated endpoints/run/deviations - ignore *.tar.gz (local curl-impersonate download at repo root)
114 lines
4.9 KiB
Markdown
114 lines
4.9 KiB
Markdown
# ani-web — Web Front-End for ani-cli
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Browse, search, and stream anime from the browser, using the same
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anidb.app data source that ani-cli scrapes.
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**Status: implemented and running.** Deviations from the original
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draft: hls.js is vendored locally (CDN was a silent failure point),
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history is server-side with watch-position resume (was: localStorage,
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last 20), and the front-end lives in `static/` with the server code in
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`server/`. See README.md.
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## Verified data flow (spiked 2026-07, all 200 OK with Chrome TLS impersonation)
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| Step | Request | Yields |
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|---|---|---|
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| 1. Search | `GET anidb.app/browse?q={query}` | HTML cards: `href=".../anime/{slug}-{id}"`, `title="{name}"`, poster `img src` |
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| 2. Details | `GET anidb.app/anime/{slug}-{id}` | MAL id, synopsis, related seasons (same-card links) |
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| 3. Episodes | `GET anidb.app/api/frontend/anime/{id}/episodes` | JSON `{episodes: [{id, number, number2, filler}]}` |
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| 4. Languages | `GET anidb.app/api/frontend/episode/{ep_id}/languages` | JSON `{languages: [{code: "jpn"\|"eng", name, embed_url}]}` — `jpn`=sub, `eng`=dub |
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| 5. Embed page | `GET {embed_url}` | JS blob containing `file: '<master m3u8>'` |
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| 6. Master playlist | `GET {master m3u8}` (hls.anidb.app) | variants: 1080p / 720p / 360p |
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| 7. Variants + segments | `GET ...m3u8`, `.ts` | streamable HLS — **NO CORS headers** |
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Key constraint: anidb.app sits behind Cloudflare (plain curl → 403).
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All upstream requests must use TLS-fingerprint impersonation
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(verified: `curl_cffi` `impersonate="chrome"` passes the challenge).
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Since the CDN sends no CORS headers, the browser cannot fetch playlists
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or segments directly — **all HLS traffic must go through a backend proxy**.
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## Architecture
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```
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Browser (vanilla JS + hls.js)
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│ /api/* JSON /stream/* proxied HLS
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▼
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Python backend (FastAPI, uvicorn)
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│ curl_cffi (Chrome impersonation)
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▼
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anidb.app + hls.anidb.app
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```
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Two moving parts, no database, no framework on the frontend.
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## Backend
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`server/app.py` + `server/upstream.py`. Python 3.12, deps:
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`fastapi`, `uvicorn`, `curl_cffi`.
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- `GET /api/search?q=` → `[{id, slug_id, name, poster}]` (parse step 1)
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- `GET /api/anime/{slug_id}` → `{id, name, synopsis, mal_id, seasons:[{slug_id,name,id}]}`
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- `GET /api/anime/{id}/episodes` → `[{id, number, filler}]` (step 3, passthrough)
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- `GET /api/episode/{ep_id}/stream?lang=eng|jpn` → `{token, qualities}`
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(steps 5+6; token is base64url of the master m3u8 URL)
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- `GET /api/history` / `POST /api/history` → watch history with
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position, persisted to `server/data/history.json` (50 kept, top 5
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returned; upsert per anime+episode)
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- `GET /stream/{token}` → proxied HLS. Token = base64url of the
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upstream URL. Rewrites every non-comment line of m3u8 bodies to
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point back at `/stream/`; proxies master, variants, and segments
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(bytes, no transcoding).
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## Frontend
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`static/`: single `index.html` + `app.js` + `style.css`. hls.js is
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**vendored** (`static/hls.min.js`) — a CDN dependency silently
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produced black screens.
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Flow: search box → results grid (poster + title, click) → detail view
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(synopsis under the episode grid, season tabs) → episode grid (number
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+ filler badge, sub/dub toggle) → `<video>` with hls.js pointed at
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`/stream/{token}`; quality follows the master playlist (auto ABR).
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- Default play: opening an anime resumes the last watched episode of
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the season (seeking to the saved position unless ≥95% through),
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else autoplays episode 1. If the browser blocks autoplay, a
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"click to play" overlay appears.
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- Watch position saved to `/api/history` every ~10s + on pause/unload;
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home page lists the 5 most recent entries with timecode.
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## Run
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```sh
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uv venv .venv && uv pip install --python .venv/bin/python -r requirements.txt
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./run.sh # launch/restart, logs to server.log
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```
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Open `http://localhost:8321` (bound to 0.0.0.0 for LAN access).
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## Out of scope (v1)
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Downloads (`-d`), next-episode countdown (`-N`), syncplay, intro skip,
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ani-schedule integration, auth, multi-user, episode titles (not in
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anidb's API — needs a MyAnimeList API key). Add when someone asks.
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## Risks
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- **Cloudflare policy change** → upstream breaks. Mitigation: swap
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`impersonate="chrome"` for `"safari"`/binary curl-impersonate;
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all upstream access is isolated in one module (`upstream.py`).
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- **anidb.app layout change** → parsers break. The 4 API endpoints
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(steps 3–6) are clean JSON; only steps 1, 2, 5 are HTML/JS scraping.
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- **ToS** — anidb.app is a third-party scraper site; personal use,
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no redistribution, bind to LAN only by default.
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## Milestones (all done)
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1. Spike — curl_cffi passes Cloudflare; all 7 steps verified.
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2. `server/upstream.py` — the 6 fetch functions, assert self-check.
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3. API — FastAPI routes over upstream.py.
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4. HLS proxy — `/stream/{token}` with playlist rewriting.
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5. UI — search → detail → episodes → player.
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6. Polish — history with position + resume, sub/dub toggle, error
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states, autoplay default, `run.sh`.
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