package utils import ( "io/ioutil" "net/http" "path/filepath" "strings" l4g "github.com/alecthomas/log4go" "github.com/mattermost/platform/model" "github.com/nicksnyder/go-i18n/i18n" ) var T i18n.TranslateFunc var locales map[string]string = make(map[string]string) var settings model.LocalizationSettings // this functions loads translations from filesystem // and assign english while loading server config func TranslationsPreInit() { InitTranslationsWithDir("i18n") T = TfuncWithFallback("en") } func InitTranslations(localizationSettings model.LocalizationSettings) { settings = localizationSettings T = GetTranslationsBySystemLocale() } func InitTranslationsWithDir(dir string) { i18nDirectory := FindDir(dir) files, _ := ioutil.ReadDir(i18nDirectory) for _, f := range files { if filepath.Ext(f.Name()) == ".json" { filename := f.Name() locales[strings.Split(filename, ".")[0]] = i18nDirectory + filename i18n.MustLoadTranslationFile(i18nDirectory + filename) } } } func GetTranslationsBySystemLocale() i18n.TranslateFunc { locale := *settings.DefaultServerLocale if _, ok := locales[locale]; !ok { l4g.Error("Failed to load system translations for '%v' attempting to fall back to '%v'", locale, model.DEFAULT_LOCALE) locale = model.DEFAULT_LOCALE } if locales[locale] == "" { panic("Failed to load system translations for '" + model.DEFAULT_LOCALE + "'") } translations := TfuncWithFallback(locale) if translations == nil { panic("Failed to load system translations") } l4g.Info(translations("utils.i18n.loaded"), locale, locales[locale]) return translations } func GetUserTranslations(locale string) i18n.TranslateFunc { if _, ok := locales[locale]; !ok { locale = model.DEFAULT_LOCALE } translations := TfuncWithFallback(locale) return translations } func SetTranslations(locale string) i18n.TranslateFunc { translations := TfuncWithFallback(locale) return translations } func GetTranslationsAndLocale(w http.ResponseWriter, r *http.Request) (i18n.TranslateFunc, string) { // This is for checking against locales like pt_BR or zn_CN headerLocaleFull := strings.Split(r.Header.Get("Accept-Language"), ",")[0] // This is for checking agains locales like en, es headerLocale := strings.Split(strings.Split(r.Header.Get("Accept-Language"), ",")[0], "-")[0] defaultLocale := *settings.DefaultClientLocale if locales[headerLocaleFull] != "" { translations := TfuncWithFallback(headerLocaleFull) return translations, headerLocaleFull } else if locales[headerLocale] != "" { translations := TfuncWithFallback(headerLocale) return translations, headerLocale } else if locales[defaultLocale] != "" { translations := TfuncWithFallback(defaultLocale) return translations, headerLocale } translations := TfuncWithFallback(model.DEFAULT_LOCALE) return translations, model.DEFAULT_LOCALE } func TfuncWithFallback(pref string) i18n.TranslateFunc { t, _ := i18n.Tfunc(pref) return func(translationID string, args ...interface{}) string { if translated := t(translationID, args...); translated != translationID { return translated } t, _ := i18n.Tfunc(model.DEFAULT_LOCALE) return t(translationID, args...) } }