用Go写了一个可以用来访问goolge类似Proxy的小程序

1. package main
3. import (
4. "fmt"
5. "io"
6. "net/http"
7. )
9. func main() {
10. http.HandleFunc("/", route)
11. e := http.ListenAndServe(":80", nil)
12. if e != nil {
13. fmt.Println(e)
14. }
15. }
17. func route(w http.ResponseWriter, r *http.Request) {
18. req, _ := http.NewRequest(r.Method, "", r.Body)
19. req.URL = r.URL
20. req.URL.Host = r.Host //"www.qq.com"
21. req.URL.Scheme = "http"
22. for _, v := range r.Cookies() {
23. req.AddCookie(v)
24. }
25. //req.Header = r.Header 这里的Header就不要使用了,使用的话他会自动跳转到https,代理就出问题了.
26. resp, err := http.DefaultClient.Do(req)
27. if err != nil {
28. fmt.Println("Here:", err)
29. return
30. }
31. for k, v := range resp.Header {
32. for _, value := range v {
33. w.Header().Add(k, value)
34. }
35. }
36. for _, cookie := range resp.Cookies() {
37. w.Header().Add("Set-Cookie", cookie.Raw)
38. }
39. w.WriteHeader(resp.StatusCode)
40. io.Copy(w, resp.Body)
41. resp.Body.Close()
42. r.Body.Close()
43. }

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