package main import ( "fmt" "io/ioutil" "net/http" "strings" "github.com/AdguardTeam/golibs/log" ) // -------------------- // internationalization // -------------------- var allowedLanguages = map[string]bool{ "en": true, "ru": true, "vi": true, "es": true, "fr": true, "ja": true, "sv": true, "pt-br": true, "zh-tw": true, "bg": true, "zh-cn": true, } func isLanguageAllowed(language string) bool { l := strings.ToLower(language) return allowedLanguages[l] } func handleI18nCurrentLanguage(w http.ResponseWriter, r *http.Request) { w.Header().Set("Content-Type", "text/plain") log.Printf("config.Language is %s", config.Language) _, err := fmt.Fprintf(w, "%s\n", config.Language) if err != nil { errorText := fmt.Sprintf("Unable to write response json: %s", err) log.Println(errorText) http.Error(w, errorText, http.StatusInternalServerError) return } } func handleI18nChangeLanguage(w http.ResponseWriter, r *http.Request) { body, err := ioutil.ReadAll(r.Body) if err != nil { errorText := fmt.Sprintf("failed to read request body: %s", err) log.Println(errorText) http.Error(w, errorText, http.StatusBadRequest) return } language := strings.TrimSpace(string(body)) if language == "" { errorText := fmt.Sprintf("empty language specified") log.Println(errorText) http.Error(w, errorText, http.StatusBadRequest) return } if !isLanguageAllowed(language) { errorText := fmt.Sprintf("unknown language specified: %s", language) log.Println(errorText) http.Error(w, errorText, http.StatusBadRequest) return } config.Language = language httpUpdateConfigReloadDNSReturnOK(w, r) }