# vmess-domain-rotator

This repo provides a first working version of an automated pipeline:

1. Pull preferred domains from an API (like vps789).
2. Validate and optionally health-check candidates.
3. Pick the best domain automatically.
4. Export runtime files for Sub-Store and V2Ray integration.

## Quick start

1. Edit `config.json` directly (single runtime config file).

For your sample response (`data.good[].ip`), parser config can be:

```json
"parser": {
  "field_paths": ["data.good[].ip"],
  "json_paths": [],
  "regex": "[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,}"
}
```

For vps789 Top20 ranking, if you want "directly use first ranked domain":

```json
"scoring": {
  "enabled": true,
  "records_path": "data.good[]",
  "ip_field": "ip",
  "created_time_field": "createdTime",
  "within_hours": 24,
  "use_api_order": true
}
```

Then set:

```json
"healthcheck": { "enabled": false }
```

2. Run once:

```bash
python3 scripts/domain_updater.py --config config.json
```

3. Check output files:

- `runtime/current_domain.txt`
- `runtime/current_domain.json`
- `runtime/state.json`

## What the script exports

- `current_domain.txt`: plain text domain.
- `current_domain.json`: machine-readable payload:

```json
{
  "domain": "best.example.com",
  "updated_at": "2026-04-13T07:00:00Z",
  "status": "ok",
  "source_count": 15,
  "checked_count": 10
}
```

- `state.json`: includes `last_good_domain` for automatic fallback.

If you need Sub-Store to fetch these files over HTTP, you can expose `runtime/` via nginx or caddy.

## How to connect with Sub-Store

Two practical modes:

1. **Recommended**: run updater externally and let Sub-Store operator fetch `current_domain.json`.
2. Keep Sub-Store static and update V2Ray template directly (token replacement).

`substore/operator_template.js` is a starter operator script showing how to replace VMess `server` fields by regex match on node names.

Minimal smoke test (local):

```bash
python3 -m http.server 8080 --directory runtime
```

Then test:

```bash
curl http://127.0.0.1:8080/current_domain.json
```

## How to connect with V2Ray

If you maintain a template config (containing `__AUTO_DOMAIN__` token), this script can render a real config file with the selected domain.

Then reload service:

```bash
systemctl reload v2ray
```

## Update Base64 VMess links

If your node list uses `vmess://<base64-json>`, use:

```bash
python3 scripts/update_vmess_links.py \
  --input ./nodes.txt \
  --output ./nodes.updated.txt \
  --domain-file ./runtime/current_domain.txt
```

Only update specific node names (`ps`) by regex:

```bash
python3 scripts/update_vmess_links.py \
  --input ./nodes.txt \
  --output ./nodes.updated.txt \
  --domain-file ./runtime/current_domain.txt \
  --name-regex "(argo|cf|vm)"
```

If the whole subscription file is itself base64-encoded, add:

```bash
--subscription-base64
```

## Scheduling

### Cron

```cron
0 * * * * /bin/bash /opt/vmess-domain-rotator/scripts/run_update_and_commit.sh /opt/vmess-domain-rotator/config.json >> /var/log/vmess-domain-rotator.log 2>&1
```

### systemd timer

Use files under `systemd/` and adjust paths/user.
Default timer interval in this repo is `1h`.

### Debian install/uninstall scripts

Install on a Debian server (creates systemd service+timer):

```bash
sudo bash scripts/install_debian.sh
```

If you run this inside a git clone, installer now defaults to in-place mode (service uses current repo path), so auto-commit writes to your real repo. To force copy deployment under `/opt`, set `--app-dir` explicitly.

This installer initializes a git repo under app dir only in copy mode (if missing). Runtime updates are committed and pushed to `runtime-state` branch by default when selected domain changes, so `main` stays clean.

Uninstall:

```bash
sudo bash scripts/uninstall_debian.sh
```

Useful options:

```bash
sudo bash scripts/install_debian.sh --user root --group root --interval 5min
sudo bash scripts/install_debian.sh --app-dir /opt/vmess-domain-rotator
sudo bash scripts/uninstall_debian.sh --keep-app-dir
```

## Config notes

- API response formats differ. Use one of:
  - `parser.json_paths` (preferred)
  - `parser.regex` fallback
- If API has occasional bad results, keep `healthcheck.enabled=true`.
- If API may return IPv4 addresses, consider `healthcheck.tls_verify=false`.
- If all checks fail, script falls back to last known good domain.

## About Sub-Store "config file location"

If you use Sub-Store web UI, rules are usually stored in backend data storage (sqlite/json), not a simple editable config file.

Common deployment cases:

- Docker: check mounted volume path, then back up that volume.
- Node/PM2: check app directory `data/` or database file.

In practice, you can avoid touching backend db files directly:

1. Keep your node logic in Sub-Store operator script (web UI).
2. Let operator fetch `current_domain.json` from this project.
3. Dynamic replacement happens at subscription processing time.

## Security and reliability

- Do not commit API tokens.
- Use reverse proxy auth if exposing `current_domain.json` publicly.
- Keep `runtime/state.json` persisted (for fallback).