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@@ -19,6 +19,7 @@ jobs:
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uses: actions/setup-go@v5
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with:
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go-version: '1.21'
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cache: true
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- name: Build all platforms
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run: |
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21
LICENSE
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21
LICENSE
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MIT License
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Copyright (c) 2024 GoTunnel
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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164
README.md
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164
README.md
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# GoTunnel
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一个轻量级、高性能的内网穿透工具,采用服务端集中化管理模式。
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## 项目简介
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GoTunnel 是一个类似 frp 的内网穿透解决方案,核心特点是**服务端集中管理配置**。客户端只需提供认证信息即可自动获取映射规则,无需在客户端维护复杂配置。
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### 架构设计
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```
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┌──────────────┐ ┌──────────────────────┐
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│ Client │ Control Channel │ Server │
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│ │ ◄────────────────►│ │
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│ ┌────────┐ │ (Yamux Mux) │ ┌────────────────┐ │
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│ │ Agent │ │ │ │ Control Manager│ │
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│ └────────┘ │ │ └────────────────┘ │
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│ │ │ │ │ │
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│ ▼ │ Data Streams │ ▼ │
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│ ┌────────┐ │ ◄────────────────►│ ┌────────────────┐ │
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│ │ Proxy │ │ │ │ Proxy Listener │ │
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│ └────────┘ │ │ │ :8080,:9090 │ │
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│ │ │ │ └────────────────┘ │
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│ ▼ │ │ ▲ │
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│ ┌────────┐ │ │ │ │
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│ │Local:80│ │ │ External Users │
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│ └────────┘ │ │ │
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└──────────────┘ └──────────────────────┘
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```
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## 功能特性
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### 核心功能
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- **服务端集中管理** - 所有客户端的映射规则由服务端统一配置,客户端零配置
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- **多路复用** - 基于 Yamux 实现控制通道与数据通道分离,高效复用单一 TCP 连接
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- **多客户端支持** - 支持多个客户端同时连接,每个客户端独立的映射规则
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- **端口冲突检测** - 自动检测系统端口占用和客户端间端口冲突
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### 可靠性
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- **心跳检测** - 可配置的心跳间隔和超时时间,及时发现断线
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- **断线重连** - 客户端自动重连机制,网络恢复后自动恢复服务
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- **优雅关闭** - 客户端断开时自动释放端口资源
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### 安全性
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- **Token 认证** - 基于 Token 的身份验证机制
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- **客户端白名单** - 仅配置的客户端 ID 可以连接
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- **TLS 预留** - 预留 TLS 加密扩展接口
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## 快速开始
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### 安装
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**从源码编译:**
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```bash
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git clone https://github.com/your-repo/gotunnel.git
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cd gotunnel
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go build -o server ./cmd/server
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go build -o client ./cmd/client
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```
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**下载预编译二进制:**
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从 Releases 页面下载对应平台的二进制文件。
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### 服务端启动
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```bash
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./server -c server.yaml
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```
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### 客户端启动
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```bash
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./client -s <服务器IP>:7000 -t <Token> -id <客户端ID>
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```
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**参数说明:**
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| 参数 | 说明 | 必填 |
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|------|------|------|
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| `-s` | 服务器地址 (ip:port) | 是 |
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| `-t` | 认证 Token | 是 |
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| `-id` | 客户端 ID(需与服务端配置匹配) | 否(自动生成) |
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## 配置系统
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服务端使用 YAML 格式的配置文件,集中管理所有客户端的映射规则。
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### 配置文件示例
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```yaml
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# server.yaml
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server:
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bind_addr: "0.0.0.0" # 监听地址
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bind_port: 7000 # 监听端口
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token: "your-secret-token" # 认证 Token
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heartbeat_sec: 30 # 心跳间隔(秒)
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heartbeat_timeout: 90 # 心跳超时(秒)
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clients:
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- id: "client-a"
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rules:
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- name: "web"
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local_ip: "127.0.0.1"
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local_port: 80
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remote_port: 8080
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- name: "ssh"
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local_ip: "127.0.0.1"
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local_port: 22
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remote_port: 2222
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- id: "client-b"
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rules:
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- name: "mysql"
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local_ip: "127.0.0.1"
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local_port: 3306
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remote_port: 13306
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```
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### 配置参数说明
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**Server 配置:**
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| 参数 | 类型 | 默认值 | 说明 |
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|------|------|--------|------|
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| `bind_addr` | string | - | 服务端监听地址 |
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| `bind_port` | int | - | 服务端监听端口 |
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| `token` | string | - | 客户端认证 Token |
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| `heartbeat_sec` | int | 30 | 心跳发送间隔(秒) |
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| `heartbeat_timeout` | int | 90 | 心跳超时时间(秒) |
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**Rule 配置:**
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| 参数 | 类型 | 说明 |
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|------|------|------|
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| `name` | string | 规则名称(用于日志标识) |
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| `local_ip` | string | 客户端本地服务 IP |
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| `local_port` | int | 客户端本地服务端口 |
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| `remote_port` | int | 服务端对外暴露端口 |
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## 项目结构
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```
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GoTunnel/
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├── cmd/
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│ ├── server/main.go # 服务端入口
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│ └── client/main.go # 客户端入口
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├── pkg/
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│ ├── protocol/ # 通信协议定义
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│ ├── config/ # 配置文件解析
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│ ├── tunnel/ # 核心隧道逻辑
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│ └── utils/ # 工具函数
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├── server.yaml # 配置示例
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└── go.mod
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```
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## 许可证
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本项目采用 [MIT License](LICENSE) 开源许可证。
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27
server.yaml
27
server.yaml
@@ -1,27 +0,0 @@
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# GoTunnel Server Configuration
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server:
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bind_addr: "0.0.0.0"
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bind_port: 7000
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token: "your-secret-token"
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heartbeat_sec: 30
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heartbeat_timeout: 90
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# Client configurations (centralized management)
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clients:
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- id: "client-a"
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rules:
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- name: "web"
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local_ip: "127.0.0.1"
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local_port: 80
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remote_port: 8080
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- name: "ssh"
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local_ip: "127.0.0.1"
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local_port: 22
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remote_port: 2222
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- id: "client-b"
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rules:
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- name: "mysql"
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local_ip: "127.0.0.1"
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local_port: 3306
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remote_port: 13306
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