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Torznab + fake qBittorrent proxy for Webshare.cz, with Compose/Docker
packaging, MIT license, and tests.
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Michal Pemcak
2026-08-07 08:37:10 +02:00
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# webshare-api
Node.js/Express proxy that exposes [Webshare.cz](https://webshare.cz) as protocols *arr apps understand.
Official Webshare HTTP API documentation: [https://webshare.cz/apidoc/](https://webshare.cz/apidoc/)
| Role | Endpoints | Purpose |
|------|-----------|---------|
| **Torznab indexer** | `GET /api?t=caps\|search\|tvsearch\|movie` | Search → Torznab RSS/XML |
| **Fake torrent** | `GET /download/:ident` | Minimal `.torrent` whose webseed points at `/stream/:ident` |
| **Stream** | `GET /stream/:ident` | Fresh Webshare `file_link` + HTTP 302 to CDN |
| **Fake qBittorrent** | `/api/v2/*` | Download client API; streams the HTTPS file to disk |
| **Debug** | `GET /resolve/:ident` | JSON with the resolved CDN URL |
Webshare download links expire after roughly ten minutes, so the torrent never embeds a CDN URL—only a path on this service that resolves a fresh link at fetch time.
## Layout
```
src/
index.js # Express app + optional Sonarr missing-episode search
webshare.js # salt/login, search, file_link
md5crypt.js # Unix $1$ MD5-crypt (Webshare password digest)
torznab.js # caps + search feed XML
torrent.js # bencode + fake torrent + info-hash
qbt.js # qBittorrent Web API façade + download queue
__tests__/
compose.yaml
Dockerfile
```
## Configuration
Environment variables (required unless noted):
| Variable | Default | Description |
|----------|---------|-------------|
| `WEBSHARE_USERNAME` | — | Webshare username or email |
| `WEBSHARE_PASSWORD` | — | Webshare password (plain; hashed client-side) |
| `PORT` | `3001` | HTTP listen port |
| `BASE_URL` | `http://localhost:$PORT` | Public base URL Sonarr must reach (use the Compose service hostname when linking containers) |
| `DOWNLOAD_PATH` | `/downloads/webshare` | Where the fake qBittorrent writes files |
| `MEDIA_ROOT` | `/data` | Media root (used for path reporting) |
| `MAX_CONCURRENT_DOWNLOADS` | `2` | Parallel stream downloads |
| `SONARR_URL` | `http://sonarr:8989` | Optional; Sonarr base URL |
| `SONARR_API_KEY` | _(empty)_ | Optional; enables periodic missing-episode search |
| `SONARR_SEARCH_INTERVAL_HOURS` | `2` | Interval for that search |
| `DOWNLOAD_HOST_PATH` | `./data/webshare` | Host path mounted at `DOWNLOAD_PATH` in Compose |
Copy `.env.example` and fill in credentials. Do not commit a filled `.env`.
## Run with Compose
```bash
cp .env.example .env
# set WEBSHARE_USERNAME and WEBSHARE_PASSWORD
docker compose up -d --build
```
See `compose.yaml`. Override ports, `BASE_URL`, Sonarr settings, and volume mounts via `.env` as needed.
## Run without Compose
```bash
npm install
export WEBSHARE_USERNAME=...
export WEBSHARE_PASSWORD=...
npm start
```
## Sonarr / Radarr
1. **Indexer** (Torznab): `http://<host>:3001/api`
2. **Download client** (qBittorrent): host/port of this service; any username/password (login accepts all).
When both run on the same Compose network, use the service name, e.g. `http://webshare-api:3001`.
Sonarr hands `.torrent` files to the fake qBittorrent API. This service extracts the webseed, streams the file into `DOWNLOAD_PATH`, and reports progress via `/api/v2/torrents/*`.
## Tests
```bash
npm test
```
## License
[MIT](LICENSE)
You need a valid Webshare account. This project only speaks their documented HTTP API ([apidoc](https://webshare.cz/apidoc/)). Use at your own risk.