如何将网址编码的网址作为参数发送给多路复用器？

Question

I have this code

func main() {
  router := mux.NewRouter()
  router.HandleFunc("/", rootHandler)
  router.HandleFunc("/xyz/{url}", urlHandler)
  http.Handle("/", router)

  log.Fatal(http.ListenAndServe(":8080", nil))
}

With this url: http://localhost:8080/xyz/https%3A%2F%2Fabc.no%2FJZ2las1o3Ct mux will redirect (301) to http://localhost:8080/xyz/https:/abc.no/JZ2las1o3Ct

If I change %2F%2F to only one (%2F) I do not get redirected and the escaped characters stay escaped.

I have found references to router.SkipClean(true) but it makes no difference in how Mux handles this.

What I want is that the mux variable url should hold https%3A%2F%2Fabc.no%2FJZ2las1o3Ct

Answer 1

You can use QueryUnescape for removing the spaces and other url coded paramters. Please look for the function

https://golang.org/pkg/net/url/#QueryUnescape