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feat: 新增 cloud-artifacts 包(Cloudflare Worker HTML artifact 托管)
POST /upload 鉴权上传 HTML 到 R2 返回 hash URL,GET /<7d|30d>/<id>.html 由 Worker 代理读取并直出 text/html。R2 lifecycle rule 自动 7/30 天删除。 独立服务,不被主 CLI 引用(类似 packages/remote-control-server/ 定位)。 Co-Authored-By: glm-5.2 <zai-org@claude-code-best.win>
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# cloud-artifacts
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独立的 Cloudflare Worker + R2 服务,用于托管 HTML artifact。
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服务端(CLI / RCS 后台)通过单一 bearer token 上传 HTML,得到一个公开可访问的 CDN URL。**POST 上传和 GET 访问都走 Worker**,URL 形如 `https://<worker-domain>/<ttl-prefix>/<id>.html`,文件到期由 R2 lifecycle rule 自动删除。
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## 架构
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```
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客户端 --POST /upload--> Worker (鉴权 + 校验 + R2 put) --返回 {id, url, expiresAt}
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客户端 --GET html-------> Worker (R2 get → text/html) --直出 html,带 Cache-Control: max-age=86400
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↑
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R2 lifecycle rule: 7d/ 删 7 天,30d/ 删 30 天
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```
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- Worker 处理 `POST /upload` 和 `GET /<prefix>/<id>.html`
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- R2 key 形如 `7d/<id>.html` 或 `30d/<id>.html`
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- URL 形如 `https://<worker-domain>/7d/<id>.html`,hash 本身是秘密(21 字符 nanoId,126 bit 熵)
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## 部署
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前置:本机已 `npx wrangler login` 登录目标 Cloudflare 账号,且账号下有一个用于 Worker custom domain 的域名(zone)。
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```bash
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cd packages/cloud-artifacts
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bun install # 在 monorepo 根执行也行(workspace 自动识别)
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cp .dev.vars.example .dev.vars # 填本地 dev 用的 TOKEN(仅 wrangler dev 读)
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bun run setup # 创建 bucket + 加 lifecycle rule + 设生产 TOKEN secret
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# 绑定 Worker custom domain(在 Cloudflare dashboard):
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# Workers & Pages > cloud-artifacts > Settings > Domains & Routes > Add > Custom Domain
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# 填入你的 domain(如 artifacts.example.com)
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# 改 wrangler.toml 中 [vars] PUBLIC_URL 为上一步的 domain(如 https://artifacts.example.com)
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bun run deploy
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```
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## API
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### `POST /upload`
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| Header / Query | 必填 | 说明 |
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|----------------|------|------|
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| `Authorization: Bearer <TOKEN>` | 是 | 与 Worker secret `TOKEN` 完全相等 |
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| `Content-Type: text/html` | 是 | 不接受其他类型 |
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| `?ttl=7\|30` | 否 | 默认 7,**只允许 7 或 30**(与 R2 lifecycle prefix 对应) |
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| `?hash=<custom-id>` | 否 | 自定义 ID,校验 `^[A-Za-z0-9_-]{1,128}$`;指定时覆盖同 ID 旧版本 |
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| body | 是 | 原始 HTML(`--data-binary @file.html`),≤10MB |
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成功 200:
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```json
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{
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"id": "V1StGXR8_Z5jdHi6B-myT",
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"url": "https://<worker-domain>/7d/V1StGXR8_Z5jdHi6B-myT.html",
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"expiresAt": "2026-06-27T10:00:00.000Z"
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}
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```
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错误(统一 `{ "error": "<code>" }`):
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| 状态码 | error code | 触发条件 |
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|--------|------------|----------|
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| 400 | `invalid_ttl` | `ttl` 非 7 或 30 |
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| 400 | `invalid_hash` | `hash` 不匹配 `^[A-Za-z0-9_-]{1,128}$` |
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| 401 | `unauthorized` | 缺 Authorization / token 不匹配 |
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| 404 | `not_found` | 非 `/upload` 路径或 GET 路径不匹配 `/<7d\|30d>/<id>.html` |
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| 413 | `payload_too_large` | body > 10MB |
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| 415 | `unsupported_media_type` | Content-Type 非 `text/html` |
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### `GET /<ttl-prefix>/<id>.html`
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由 Worker 处理:解析路径 → R2 get → 返回 `text/html; charset=utf-8` + `Cache-Control: public, max-age=86400`。任何人拿到 URL 都可访问,hash 即秘密。
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`ttl-prefix` 只能是 `7d` 或 `30d`(其他路径返回 404)。
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## 示例
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```bash
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# 上传(默认随机 ID + 7 天)
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echo '<h1>hello</h1>' > /tmp/t.html
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curl -X POST "https://<worker-domain>/upload" \
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-H "Authorization: Bearer $TOKEN" \
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-H "Content-Type: text/html" \
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--data-binary @/tmp/t.html
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# -> {"id":"V1StGXR8_Z5jdHi6B-myT","url":"https://<worker-domain>/7d/V1StGXR8_Z5jdHi6B-myT.html","expiresAt":"..."}
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# 自定义 hash + 30 天(再次上传同 hash 覆盖)
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curl -X POST "https://<worker-domain>/upload?ttl=30&hash=my-report" \
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-H "Authorization: Bearer $TOKEN" \
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-H "Content-Type: text/html" \
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--data-binary @/tmp/report.html
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# 访问(公开 URL,走 Worker → R2)
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curl "https://<worker-domain>/7d/V1StGXR8_Z5jdHi6B-myT.html"
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```
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## 覆盖语义
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指定 `?hash=` 时:
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1. 校验 hash 字符集(`^[A-Za-z0-9_-]{1,128}$`)
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2. 删除 `7d/<hash>.html` 和 `30d/<hash>.html` 两个 key(R2 delete 不存在的 key 不报错,零成本)
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3. 按 `?ttl=` 写入新 key
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4. 返回新的 `expiresAt`
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不指定 `?hash=` 时:用 `nanoid(21)` 随机 ID,几乎不可能碰撞,不做碰撞检查。
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## TTL 落地
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R2 不支持 per-object TTL,本服务用 prefix + R2 lifecycle rule 模拟:
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- bucket 配两条 rule:prefix `7d/` 删 7 天前对象、prefix `30d/` 删 30 天前对象
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- 由 `scripts/setup.sh` 调 `wrangler r2 bucket lifecycle add` 自动配置
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- Worker 完全不参与过期处理,零额外代码
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- 因此 `?ttl=` 只能取 `7` 或 `30`,对应这两个 prefix(其他值会写到无 lifecycle 的 prefix → 永久存储,故拒绝)
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## 本地开发
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```bash
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cp .dev.vars.example .dev.vars
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# 编辑 .dev.vars 填 TOKEN
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bun run dev # wrangler dev,启动本地 Miniflare + 本地 R2 模拟
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curl -X POST "http://localhost:8787/upload" \
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-H "Authorization: Bearer <token>" \
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-H "Content-Type: text/html" \
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--data-binary @/tmp/t.html
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```
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## 测试
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`scripts/test.sh` 覆盖 7 个错误用例 + 3 个成功用例 + R2 写入验证:
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```bash
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WORKER_URL=https://<worker-domain> \
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TOKEN=<your-token> \
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bash scripts/test.sh
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```
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## 依赖
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- `wrangler` ^4 — Cloudflare Workers CLI
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- `nanoid` ^5 — ID 生成(纯 ESM,Worker 兼容)
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## 不被主 CLI 引用
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这是独立 Cloudflare Worker 服务,类似 `packages/remote-control-server/` 的定位。Monorepo 根 `package.json` 的 `workspaces: ["packages/*", ...]` 自动识别本包,但主 CLI 不会 import 它。
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