1426601cf7
Fix #14793. The previous implementation used the first return value of matcher.Match, which is the chosen language tag but may contain extensions such as de-DE-u-rg-chzzzz. As mentioned in the documentation of language package, matcher.Match also returns the index of the supported tags, so I think it is better to use it rather than manipulate the returned language tag.
73 lines
1.9 KiB
Go
73 lines
1.9 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 middleware
|
|
|
|
import (
|
|
"net/http"
|
|
|
|
"code.gitea.io/gitea/modules/setting"
|
|
"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 {
|
|
// 1. Check URL arguments.
|
|
lang := req.URL.Query().Get("lang")
|
|
var changeLang = lang != ""
|
|
|
|
// 2. Get language information from cookies.
|
|
if len(lang) == 0 {
|
|
ck, _ := req.Cookie("lang")
|
|
if ck != nil {
|
|
lang = ck.Value
|
|
}
|
|
}
|
|
|
|
// Check again in case someone modify by purpose.
|
|
if lang != "" && !i18n.IsExist(lang) {
|
|
lang = ""
|
|
changeLang = 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 changeLang {
|
|
SetLocaleCookie(resp, lang, 1<<31-1)
|
|
}
|
|
|
|
return translation.NewLocale(lang)
|
|
}
|
|
|
|
// SetLocaleCookie convenience function to set the locale cookie consistently
|
|
func SetLocaleCookie(resp http.ResponseWriter, lang string, expiry int) {
|
|
SetCookie(resp, "lang", lang, expiry,
|
|
setting.AppSubURL,
|
|
setting.SessionConfig.Domain,
|
|
setting.SessionConfig.Secure,
|
|
true,
|
|
SameSite(setting.SessionConfig.SameSite))
|
|
}
|
|
|
|
// DeleteLocaleCookie convenience function to delete the locale cookie consistently
|
|
// Setting the lang cookie will trigger the middleware to reset the language ot previous state.
|
|
func DeleteLocaleCookie(resp http.ResponseWriter) {
|
|
SetCookie(resp, "lang", "",
|
|
-1,
|
|
setting.AppSubURL,
|
|
setting.SessionConfig.Domain,
|
|
setting.SessionConfig.Secure,
|
|
true,
|
|
SameSite(setting.SessionConfig.SameSite))
|
|
}
|