2026-06-09 23:15:17 +08:00
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tags: [bridge, remote-control, claude-ai, oauth, 长轮询]
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create time: 2026-06-09 22:30
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---
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2026-06-08 23:08:57 +08:00
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# BRIDGE_MODE — 远程控制
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2026-06-09 23:15:17 +08:00
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## 概述
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BRIDGE_MODE 将本地 CLI 注册为"bridge 环境",可从 claude.ai 或其他控制面远程驱动。本地终端变为一个"执行者",接受远程指令并执行。支持 v1(env-based)和 v2(env-less)两种实现。
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> [!info]
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2026-06-08 23:08:57 +08:00
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> Feature Flag: `FEATURE_BRIDGE_MODE=1`
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> 实现状态:完整可用(v1 + v2 实现)
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> 引用数:28
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2026-06-09 23:15:17 +08:00
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## 正文
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### 核心特性
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- **环境注册**:本地 CLI 向 Anthropic 服务器注册为可用的 bridge 环境
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- **工作轮询**:长轮询(long-poll)等待远程任务分配
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- **会话管理**:创建、恢复、归档远程会话
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- **权限透传**:远程权限请求发送到控制面,用户在 claude.ai 上批准/拒绝
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- **心跳保活**:定期发送 heartbeat 延长任务租约
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- **可信设备**:v2 支持可信设备令牌增强安全性
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2026-06-09 23:15:17 +08:00
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### 实现架构
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#### 版本演进
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| 版本 | 实现 | 特点 |
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|------|------|------|
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| v1(env-based) | `src/bridge/replBridge.ts` | 基于环境变量的传统 bridge |
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| v2(env-less) | `src/bridge/remoteBridgeCore.ts` | 无需环境变量,更安全的 bridge |
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2026-06-09 23:15:17 +08:00
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#### API 协议
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文件:`src/bridge/bridgeApi.ts`
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Bridge API Client 提供 9 个核心操作:
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| 操作 | HTTP | 说明 |
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|------|------|------|
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| `registerBridgeEnvironment` | POST `/v1/environments/bridge` | 注册本地环境,获取 `environment_id` + `environment_secret` |
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| `pollForWork` | GET `/v1/environments/{id}/work/poll` | 长轮询等待任务(10s 超时) |
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| `acknowledgeWork` | POST `/v1/environments/{id}/work/{workId}/ack` | 确认接收任务 |
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| `stopWork` | POST `/v1/environments/{id}/work/{workId}/stop` | 停止任务 |
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| `heartbeatWork` | POST `/v1/environments/{id}/work/{workId}/heartbeat` | 续约任务租约 |
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| `deregisterEnvironment` | DELETE `/v1/environments/bridge/{id}` | 注销环境 |
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| `archiveSession` | POST `/v1/sessions/{id}/archive` | 归档会话(409 = 已归档,幂等) |
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| `sendPermissionResponseEvent` | POST `/v1/sessions/{id}/events` | 发送权限审批结果 |
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| `reconnectSession` | POST `/v1/environments/{id}/bridge/reconnect` | 重连已存在的会话 |
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2026-06-09 23:15:17 +08:00
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#### 认证流程
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```mermaid
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graph TD
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A["注册: OAuth Bearer Token"] --> B["获取 environment_secret"]
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B --> C["轮询: environment_secret 作为 Authorization"]
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C --> D{"401?"}
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D -->|"是"| E["尝试 OAuth token 刷新 onAuth401"]
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E --> F["刷新成功 → 重试一次"]
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D -->|"否"| G["正常处理"]
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```
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> [!tip]
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> **OAuth 刷新**:API client 内置 `withOAuthRetry` 机制。401 时调用 `handleOAuth401Error`,刷新后重试一次。
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#### 安全设计
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- **路径穿越防护**:`validateBridgeId()` 使用 `/^[a-zA-Z0-9_-]+$/` 白名单验证所有服务端 ID
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- **BridgeFatalError**:不可重试的错误(401/403/404/410)直接抛出,阻止重试循环
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- **可信设备令牌**:v2 通过 `X-Trusted-Device-Token` header 增强安全层级
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- **幂等注册**:支持 `reuseEnvironmentId` 实现会话恢复,避免重复创建环境
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#### 数据流
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```mermaid
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sequenceDiagram
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participant User as claude.ai 用户
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participant CLI as Claude Code CLI
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participant API as Bridge API
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User->>CLI: 选择远程环境
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CLI->>API: POST /v1/environments/bridge 注册
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API-->>CLI: environment_id + environment_secret
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loop 长轮询
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CLI->>API: GET .../work/poll (10s超时)
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API-->>CLI: WorkResponse { id, data: { type, sessionId } }
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end
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CLI->>API: POST .../work/{id}/ack 确认
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CLI->>CLI: sessionRunner 创建 REPL session
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Note over CLI,API: 权限请求 → sendPermissionResponseEvent
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Note over CLI,API: 心跳 → heartbeatWork 续约
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Note over CLI,API: 任务完成 → 自动归档
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```
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#### 模块结构
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| 模块 | 文件 | 职责 |
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|------|------|------|
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| API Client | `bridgeApi.ts` | HTTP 通信(注册/轮询/确认/心跳/注销) |
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| Session Runner | `sessionRunner.ts` | 创建/恢复 REPL 会话 |
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| Bridge Config | `bridgeConfig.ts` | 配置管理(machine name、max sessions 等) |
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| Transport | `replBridgeTransport.ts` | Bridge 传输层 |
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| Permission Callbacks | `bridgePermissionCallbacks.ts` | 权限请求处理 |
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| Pointer | `bridgePointer.ts` | 当前活跃 bridge 状态指针 |
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| Flush Gate | `flushGate.ts` | 刷新控制 |
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| JWT Utils | `jwtUtils.ts` | JWT 令牌工具 |
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| Trusted Device | `trustedDevice.ts` | 可信设备管理 |
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| Debug Utils | `debugUtils.ts` | 调试日志 |
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| Types | `types.ts` | 类型定义 |
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### 关键设计决策
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1. **长轮询而非 WebSocket**:`pollForWork` 使用 HTTP GET + 10s 超时。简单可靠,无需维护 WebSocket 连接
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2. **OAuth 刷新内嵌**:API client 自带 `withOAuthRetry`,无需外层重试逻辑
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3. **ETag 条件请求**:注册时支持 `reuseEnvironmentId` 实现幂等会话恢复
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4. **v1/v2 共存**:代码中同时存在两套实现,v2 是更安全的升级版
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5. **权限双向流动**:本地权限请求发送到 claude.ai,用户在 web 上审批
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2026-06-09 23:15:17 +08:00
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### 使用方式
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```bash
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# 启用 bridge mode
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FEATURE_BRIDGE_MODE=1 bun run dev
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# 从 claude.ai/code 远程连接
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# 在 web 界面选择已注册的环境
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# 配合 DAEMON 使用(后台守护)
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FEATURE_BRIDGE_MODE=1 FEATURE_DAEMON=1 bun run dev
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```
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2026-06-09 23:15:17 +08:00
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### 外部依赖
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| 依赖 | 说明 |
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|------|------|
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| Anthropic OAuth | claude.ai 订阅登录 |
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| GrowthBook | `tengu_ccr_bridge` 门控 |
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| Bridge API | `/v1/environments/bridge` 系列端点 |
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2026-06-09 23:15:17 +08:00
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### 文件索引
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| 文件 | 行数 | 职责 |
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|------|------|------|
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| `src/bridge/bridgeApi.ts` | 541 | API Client(核心) |
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| `src/bridge/sessionRunner.ts` | — | 会话运行器 |
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| `src/bridge/bridgeConfig.ts` | — | 配置管理 |
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| `src/bridge/replBridgeTransport.ts` | — | 传输层 |
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| `src/bridge/bridgePermissionCallbacks.ts` | — | 权限回调 |
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| `src/bridge/bridgePointer.ts` | — | 状态指针 |
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| `src/bridge/flushGate.ts` | — | 刷新控制 |
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| `src/bridge/jwtUtils.ts` | — | JWT 工具 |
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| `src/bridge/trustedDevice.ts` | — | 可信设备 |
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| `src/bridge/remoteBridgeCore.ts` | — | v2 核心实现 |
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| `src/bridge/types.ts` | — | 类型定义 |
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| `src/bridge/debugUtils.ts` | — | 调试工具 |
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## 关联笔记
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- [[remote-control-self-hosting]]
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- [[daemon]]
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- [[acp-link]]
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- [[all-features-guide]]
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