50 lines
1.1 KiB
Go
50 lines
1.1 KiB
Go
|
// Copyright 2020 The Gitea Authors. All rights reserved.
|
||
|
|
// Use of this source code is governed by a MIT-style
|
||
|
|
// license that can be found in the LICENSE file.
|
||
|
|
|
||
|
|
package middlewares
|
||
|
|
|
||
|
|
import (
|
||
|
|
"net/http"
|
||
|
|
|
||
|
|
"code.gitea.io/gitea/modules/translation"
|
||
|
|
|
||
|
|
"github.com/unknwon/i18n"
|
||
|
|
"golang.org/x/text/language"
|
||
|
|
)
|
||
|
|
|
||
|
|
// Locale handle locale
|
||
|
|
func Locale(resp http.ResponseWriter, req *http.Request) translation.Locale {
|
||
|
|
hasCookie := false
|
||
|
|
|
||
|
|
// 1. Check URL arguments.
|
||
|
|
lang := req.URL.Query().Get("lang")
|
||
|
|
|
||
|
|
// 2. Get language information from cookies.
|
||
|
|
if len(lang) == 0 {
|
||
|
|
ck, _ := req.Cookie("lang")
|
||
|
|
lang = ck.Value
|
||
|
|
hasCookie = true
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check again in case someone modify by purpose.
|
||
|
|
if !i18n.IsExist(lang) {
|
||
|
|
lang = ""
|
||
|
|
hasCookie = false
|
||
|
|
}
|
||
|
|
|
||
|
|
// 3. Get language information from 'Accept-Language'.
|
||
|
|
// The first element in the list is chosen to be the default language automatically.
|
||
|
|
if len(lang) == 0 {
|
||
|
|
tags, _, _ := language.ParseAcceptLanguage(req.Header.Get("Accept-Language"))
|
||
|
|
tag, _, _ := translation.Match(tags...)
|
||
|
|
lang = tag.String()
|
||
|
|
}
|
||
|
|
|
||
|
|
if !hasCookie {
|
||
|
|
req.AddCookie(NewCookie("lang", lang, 1<<31-1))
|
||
|
|
}
|
||
|
|
|
||
|
|
return translation.NewLocale(lang)
|
||
|
|
}
|