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@vafast/permission

v0.1.3

Published

Declarative permission middleware for Vafast - route-level RBAC with pluggable resolvers

Readme

@vafast/permission

声明式权限中间件:路由写 permission: true(或显式 key),业务封装一次 createPermissionMiddleware,挂在认证之后做 RBAC。

设计对齐 @vafast/webhook:路由扩展 + 路径推导 key + 目录查询。与具体「组织 / 租户」模型解耦。

完整文档:Permission

先搞清几个概念

Permission key

点分字符串,建议 {domain}.{module}.{action}。默认从路径推导(同 webhook eventKey):

| 路径 | pathPrefix | 自动 key | |------|------------|----------| | /billing/points/adjust | (无) | billing.points.adjust | | /restfulApi/auth/signIn | /restfulApi | auth.signIn |

Grant 侧可带通配:*billing.*billing.points.*

角色 → grants → 比对

认证(authWithApp)
  → getRole → 角色表 grants
  → getExtraGrants(可选,平台/应用权限)并集
  → 与路由 permission 匹配
  • 无角色且无额外 grants → 401
  • 有主体但 grants 不够 → 403

复合场景(组织 admin 平台权限)用 getExtraGrants;条件字段校验(如仅 all_apps)放 handler,复用同一套 grants 判断。

挂载位置(和 webhook 不同)

| | Webhook | Permission | |--|---------|------------| | 时机 | next() 之后发事件 | handler 之前拦截 | | 挂法 | 可以 server.use | 必须在认证后:middleware: [authWithApp, orgPermission] |

不要 server.use(orgPermission):全局中间件早于路由 auth,读不到 userInfo / app

安装

npm install @vafast/permission

快速开始(推荐写法)

import { Server, defineRoute, defineRoutes, serve } from 'vafast'
import { authWithApp } from '@vafast/auth-middleware'
import {
  createPermissionMiddleware,
  defineRoles,
  cacheKeyFromUserAndApp,
} from '@vafast/permission'

export const orgPermission = createPermissionMiddleware({
  pathPrefix: '/billingRestfulApi', // 有统一 API 前缀才写,对齐 webhook
  roles: defineRoles({
    owner: ['*'],
    admin: ['billing.*', 'users.*'],
    finance: ['billing.points.*'],
    member: ['billing.points.read'],
  }),
  async getRole(req) {
    const locals = (req as {
      __locals?: { userInfo?: { id: string }; app?: { id: string } }
    }).__locals
    if (!locals?.userInfo?.id || !locals?.app?.id) return null
    // 业务里调 auth / 用户中心
    return await getOrgRole(locals.userInfo.id, locals.app.id).then((r) => r.role)
  },
  // 默认不缓存(角色变更立即生效)。需要时可开:
  // cache: { cacheKey: cacheKeyFromUserAndApp, ttlMs: 60_000 },
})

const routes = defineRoutes([
  defineRoute({
    path: '/billingRestfulApi',
    middleware: [authWithApp, orgPermission],
    children: [
      defineRoute({
        method: 'POST',
        path: '/billing/points/adjust',
        permission: true, // → billing.points.adjust
        handler: () => ({ ok: true }),
      }),
      defineRoute({
        method: 'GET',
        path: '/billing/points/read',
        // 未声明 permission → 只认证,不校验组织权限
        handler: () => ({ balance: 100 }),
      }),
    ],
  }),
])

const server = new Server(routes)
serve({ fetch: server.fetch, port: 3000 })

用法

路由字段

permission: true                      // 推荐:路径推导
permission: {}                        // 同 true
permission: 'billing.points.adjust'   // 显式单 key
permission: { key: 'billing.points.adjust' }
permission: { anyOf: ['a', 'b'] }     // 少见:满足任一
permission: { allOf: ['a', 'b'] }     // 少见:必须全有

可选缓存

createPermissionMiddleware({
  roles,
  getRole,
  cache: {
    cacheKey: cacheKeyFromUserAndApp, // userId:appId
    ttlMs: 60_000,
  },
})

不传 cache = 不缓存。

管理端级联目录

import { getPermissionCatalog, buildPermissionTree } from '@vafast/permission'

const catalog = getPermissionCatalog('/billingRestfulApi')
const tree = buildPermissionTree([
  'billing.points.adjust',
  'billing.points.read',
  'users.invite',
])

API

| 导出 | 说明 | |------|------| | createPermissionMiddleware({ roles, getRole, pathPrefix?, cache? }) | 推荐:业务封装入口 | | cacheKeyFromUserAndApp | 常用 cacheKey | | defineRoles / resolveRoleGrants / mergeGrants | 角色权限包 | | permission / requirePermission | 底层 API(多数情况不必直接用) | | createRoleResolver / createLocalsResolver / createStaticResolver | 底层 Resolver | | createCachedResolver | 底层缓存(优先用 cache: 选项) | | matchPermission / checkRequirement / generatePermissionKey | 纯函数 | | getPermissionCatalog / buildPermissionTree | 目录 / 级联树 | | PermissionRouteExtensions | withContext 类型扩展 |

注意事项

  • 授权 ≠ 认证:先挂 authWithApp(或等价),再挂 orgPermission
  • 推荐 permission: true;改路径会同步改 key(与 webhook 一样,正常)。
  • 通配只支持 grant 侧的 * / prefix.*
  • 不绑定任何云厂商或 Ones 组织模型;getRole 由业务实现。

相关链接

License

MIT