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Extend the local plugin system's host<->plugin contract with generic, capability-neutral facilities, so transport plugins can be built on top without embedding plugin-specific logic in the host. Host services (plugin dials a broker-provided HostService gRPC): - per-plugin namespaced KV store (key/value size and TTL bounded) - account directory: ListAccounts + ResolveOutboundIdentity, restricted to the accounts a plugin's declared capability already covers - InitHostServices lifecycle hook; plugins that don't implement it run unchanged and are simply offered no host services Read-only runtime status channel: - HealthResponse gains an opaque, plugin-defined status_json produced passively (no config apply, no upstream call, no side effects) - GET /admin/plugins/:id/status (ungated) and the plugin.status UI-bridge verb map to Health, so a status UI can poll live state without a step-up prompt or a "test" side effect - config.test no longer force-shows a host success toast; the plugin UI owns result presentation, so plugins that read status do not spam toasts Document the UI-bridge verb taxonomy (read vs mutate/test gating) and the status contract under pkg/pluginapi.
2.0 KiB
2.0 KiB
UI Bridge v1
加载方式
宿主为每次打开配置页创建短时 UI 会话:
/api/v1/plugin-ui/<asset-token>/index.html#bridge_token=<bridge-token>
资源 Token 用于读取包内 ui/ 文件,Bridge Token 只存在于 URL fragment,不会发送到服务器。iframe 使用 sandbox="allow-scripts",不授予 allow-same-origin。
UI 只能加载包内、已在清单声明的资源。CSP 禁止外部网络连接、表单提交和外部 frame。
消息信封
UI 到宿主:
{
"source": "sub2api-plugin-ui",
"bridge_token": "TOKEN",
"type": "config.load",
"request_id": "UNIQUE_ID"
}
宿主到 UI:
{
"source": "sub2api-plugin-host",
"bridge_token": "TOKEN",
"request_id": "UNIQUE_ID",
"ok": true
}
方法
type |
UI 参数 | 成功响应 |
|---|---|---|
sub2api.plugin.ready |
无 | 无响应 |
config.load |
无 | config |
config.save |
config 对象 |
规范化后的 config |
config.test |
无 | result |
plugin.status |
无 | result(Health:{healthy, message, status_json}) |
ui.resize |
height |
无响应 |
ui.notify |
level、message |
无响应 |
config.test 在 v1 中测试已保存配置(需二次验证,可产生副作用)。UI 若要测试当前表单,应先调用 config.save。
plugin.status 是只读运行时状态通道:无副作用、免二次验证、不弹宿主提示,供状态面板轮询。它映射到插件 Health,result.status_json 是插件自定义的不透明 JSON 快照。带状态展示的插件应使用它,而不是把 config.test 当作状态轮询。
必须执行的校验
UI 接收消息时必须验证 event.source === parent、消息来源标识、Bridge Token 和等待中的 request_id。每个请求必须有超时和卸载清理。
宿主不会向 iframe 提供管理员 Token。插件 UI 不得尝试访问管理 API、Cookie、父页面 DOM 或浏览器存储中的宿主数据。