package main

import (
	"net/url"
	"net/http"
	"bytes"
	"fmt"
	"io/ioutil"
)

// 代理服务器(产品官网 www.16yun.cn)
const ProxyServer = "t.16yun.cn:31111"

type ProxyAuth struct {
	Username string
	Password string
}

func (p ProxyAuth) ProxyClient() http.Client {

	var proxyURL *url.URL
	if p.Username != ""&& p.Password!="" {
		proxyURL, _ = url.Parse("http://" + p.Username + ":" + p.Password + "@" + ProxyServer)
	}else{
		proxyURL, _ = url.Parse("http://" + ProxyServer)
	}
	return http.Client{Transport: &http.Transport{Proxy:http.ProxyURL(proxyURL)}}
}

func main()  {

	//服务器域名:u4866.b5.t.16yun.cn
	//服务端口:6460
	//用户名:16JCNPZD
	//密码:238369

	targetURI := "https://httpbin.org/ip"


	// 初始化 proxy http client
	client := ProxyAuth{"USERNAME",  "PASSWORD"}.ProxyClient()

	request, _ := http.NewRequest("GET", targetURI, bytes.NewBuffer([] byte(``)))

	// 设置Proxy-Tunnel
	// rand.Seed(time.Now().UnixNano())
	// tunnel := rand.Intn(10000)
	// request.Header.Set("Proxy-Tunnel", strconv.Itoa(tunnel) )

	response, err := client.Do(request)

	if err != nil {
		panic("failed to connect: " + err.Error())
	} else {
		bodyByte, err := ioutil.ReadAll(response.Body)
		if err != nil {
			fmt.Println("读取 Body 时出错", err)
			return
		}
		response.Body.Close()

		body := string(bodyByte)

		fmt.Println("Response Status:", response.Status)
		fmt.Println("Response Header:", response.Header)
		fmt.Println("Response Body:\n", body)
	}
}