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forgejo/modules/middlewares/locale.go
Lunny Xiao 15a475b7db
Fix recovery middleware to render gitea style page. (#13857)
* Some changes to fix recovery

* Move Recovery to middlewares

* Remove trace code

* Fix lint

* add session middleware and remove dependent on macaron for sso

* Fix panic 500 page rendering

* Fix bugs

* Fix fmt

* Fix vendor

* recover unnecessary change

* Fix lint and addd some comments about the copied codes.

* Use util.StatDir instead of com.StatDir

Co-authored-by: 6543 <6543@obermui.de>
2021-01-05 21:05:40 +08:00

49 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)
}