How can I translate this IDNA URL to Unicode?

Issue

I want to translate an IDNA ASCII URL to Unicode.

package main

import (
    "golang.org/x/net/idna"
    "log"
)

func main() {
    input := "https://xn---36-mddtcafmzdgfgpbxs0h7c.xn--p1ai"
    idnaProfile := idna.New()
    output, err := idnaProfile.ToUnicode(input)
    if err != nil {
        log.Fatal(err)
    }
    log.Printf("%s", output)
}

The output is: https://xn---36-mddtcafmzdgfgpbxs0h7c.рф

It seems the IDNA package only converts the TLD. Is there some option that can convert the full URL?

I need to get the same result as when I paste the ASCII URL into Chrome:
https://природный-источник36.рф

Solution

You simply need to parse the URL first:

package main

import (
   "golang.org/x/net/idna"
   "net/url"
)

func main() {
   p, e := url.Parse("https://xn---36-mddtcafmzdgfgpbxs0h7c.xn--p1ai")
   if e != nil {
      panic(e)
   }
   s, e := idna.ToUnicode(p.Host)
   if e != nil {
      panic(e)
   }
   println(s == "природный-источник36.рф")
}

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

Answered By – Zombo

Answer Checked By – Mary Flores (GoLangFix Volunteer)