代理翻墙 (nodejs实现)

across.client.js

// 客户端实现
const net = require('net')
const tls = require('tls')

const localServer = new net.Server()

localServer.on('connection', (socket) => {
  socket.pause()

  const context = {
    family: 4, // 使用IPv4
    rejectUnauthorized: false, // 如果使用自己签发的证书的话，得加上这个配置
  }

  // 将across.local替换为你自己的域名，并设置好解析
  // 通过tls连接远程服务器
  const remoteSocket = tls.connect(37637, 'across.local', context, () => {
    socket.pipe(remoteSocket)
    remoteSocket.pipe(socket)

    socket.resume()
  })

  remoteSocket.on('error', (e) => {
    console.log(e)
    socket.end()
  })

  socket.on('error', () => {})
  socket.on('end', () => {})
})

// 启动本地服务
localServer.listen(3737)

across.server.js

// 服务器端实现
const fs = require('fs')
const tls = require('tls')
const net = require('net')
const proxy = require('proxy') // 记得将proxy添加到你的package.json依赖中

// 1. 创建一个TLS服务来加密数据 (记得签发你自己的证书)
const options = {
  key: fs.readFileSync('./keys/across.key'),
  cert: fs.readFileSync('./keys/across.pem'),
}
const server = tls.createServer(options, (socket) => {
  socket.pause()

  // 连接并转发数据到本机的代理服务器
  const remoteSocket = net.connect(3738, '127.0.0.1', () => {
    socket.pipe(remoteSocket)
    remoteSocket.pipe(socket)

    socket.resume()
  })

  socket.on('error', () => {})
  socket.on('end', () => {})
})

// 2. 创建一个本机的代理服务器(站在巨人的肩膀上)
const proxyServer = proxy()
proxyServer.listen(3738, '127.0.0.1', () => {
  const port = proxyServer.address().port
  console.log('proxy server listening on port %d', port)
})

// 3. 启动TLS服务
server.listen(37637, () => {
  console.log('server bound 37637')
})

package.json

{
  "name": "across",
  "version": "1.0.0",
  "main": "across.server.js",
  "license": "MIT",
  "dependencies": {
    "proxy": "^0.2.4"
  }
}