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- 每用户标签与彩色打标，图库 OR/AND 筛选与批量打标 - 操作日志记录登录、删除、设置与标签操作 - API 标签/打标接口；README 与文档站截图同步
120 lines
4.6 KiB
Markdown
120 lines
4.6 KiB
Markdown
# Environment variables
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Configure PicHost via environment variables (Docker / `.env`) or the in-app **Settings** page. Admins use **Settings** (`/settings`) with sidebar sections **Basic**, **Domains & paths**, **Access control**, **Tag management**, and **Activity log**. Most values prefer **SQLite** when saved; some env vars override or lock UI editing.
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## Priority overview
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| Setting | Priority (high → low) | Env overrides UI |
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| ------- | --------------------- | ---------------- |
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| API upload token | Env → SQLite | **Yes** (cannot regenerate in UI) |
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| WebP quality | SQLite → env → default 80 | No |
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| Referer whitelist | SQLite → env | No |
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| Site / image base URL | SQLite → env (configured in API); links use `effective*` or request origin | No |
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| Short image links | SQLite → env → default false | No |
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| Date-based paths | SQLite → env → default true | No |
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| Global auto-delete days | SQLite → env → default 0 | No |
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| Login verification | SQLite (Settings → Access control) | No |
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## Variables
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### `API_UPLOAD_TOKEN`
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Token for external uploads (Twikoo, userscripts, blogs). Header: `Auth-Token: <token>`; form field `token` still works.
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- Generate in **API** page when unset
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- **When set in env, it wins** — UI shows “overridden by environment” and cannot regenerate
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- Alias: `NUXT_API_UPLOAD_TOKEN`
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### `ALLOWED_REFERER_HOSTS`
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Comma-separated Referer whitelist. Own hostnames are allowed automatically. Optional; configurable in Settings.
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### `SITE_BASE_URL` / `IMAGE_BASE_URL`
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- **Site URL**: admin UI, API, Twikoo upload
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- **Image URL**: copied links and public image URLs
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Single-domain: set `IMAGE_BASE_URL` only or leave empty (request origin). Dual-domain: hostnames must differ — see [Dual-domain separation](./domain-separation.md) and [Cloudflare deployment](./cloudflare-deployment.md). Values must match proxy `server_name`; do not use `localhost`, IP, or unlisted hostnames for production admin access.
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In **Settings**, enable dual-domain explicitly and fill both URLs; disabling clears the site URL (with confirmation). Configured values vs effective link URLs are separate in the API — see [Changelog](./changelog.md#1-2-2-2026-08-30).
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### `HIDE_FOLDER_IN_URL`
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`true`: short links (domain + filename only), e.g. `img.example.com/a8K3xP.webp`. `false`: keep date or custom folders, e.g. `img.example.com/2026/08/a8K3xP.webp`. Public URLs never expose the internal `images/` prefix; legacy `/images/...` paths still work.
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### `STORAGE_USE_DATE_PATH` / `STORAGE_LAYOUT`
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- `true` or `STORAGE_LAYOUT=date` (default): `images/YYYY/MM/id.webp`
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- `false` or `STORAGE_LAYOUT=flat`: `images/id.webp`
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Also toggled in Settings.
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### `DATA_DIR`
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Root for images and SQLite. Default `./data`; `/data` in container.
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### `WEBP_QUALITY`
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Server WebP quality 1–100, default **80**.
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### `AUTO_DELETE_DAYS`
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Delete images older than N days globally; `0` disables. Affects **new uploads after enable** only. Also in Settings.
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### `DEV_BYPASS_ACCESS`
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Local dev only: `true` bypasses login. Never use in production.
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### Login verification (Settings only)
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Configure under **Settings → Access control** (stored in SQLite; no env vars):
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| Method | Notes |
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| ------ | ----- |
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| **Local slider** (default) | No third-party service |
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| **Cloudflare Turnstile** | Site key + secret key |
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| **Cap** | API endpoint + secret |
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Login and registration share the same method. If misconfigured: `docker exec pichost slider` (or `npm run slider`) resets to the slider.
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### Storage backends (optional)
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Admins usually add backends in **Storage** UI; env vars such as `STORAGE_BACKEND=s3` and `S3_*` are also supported. See [Storage](./storage.md).
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## Docker Compose example
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```yaml
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services:
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pichost:
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image: muxui/pichost:latest
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ports:
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- "6892:6892"
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volumes:
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- ./data:/data
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environment:
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SITE_BASE_URL: https://admin.example.com
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IMAGE_BASE_URL: https://pic.example.com
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API_UPLOAD_TOKEN: your-secret-token
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WEBP_QUALITY: "85"
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```
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Restart the container after changing env vars.
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## Settings mapping
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| In-app setting | Environment variable |
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| -------------- | ---------------------- |
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| API token | `API_UPLOAD_TOKEN` |
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| Referer protection | `ALLOWED_REFERER_HOSTS` |
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| Site URL | `SITE_BASE_URL` |
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| Image URL | `IMAGE_BASE_URL` |
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| Hide folder prefix | `HIDE_FOLDER_IN_URL` |
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| Date-based paths | `STORAGE_USE_DATE_PATH` / `STORAGE_LAYOUT` |
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| WebP quality | `WEBP_QUALITY` |
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| Auto-delete | `AUTO_DELETE_DAYS` |
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| Login verification | (Settings → Access control only) |
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Template: [`.env.example`](https://github.com/O96u/PicHost/blob/main/.env.example) in the repo root.
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