mirror of
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110 lines
2.9 KiB
Go
110 lines
2.9 KiB
Go
package html
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import (
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"encoding/json"
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"io/ioutil"
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"net/http"
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"path"
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"github.com/BurntSushi/toml"
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"github.com/caos/logging"
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"github.com/ghodss/yaml"
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"github.com/nicksnyder/go-i18n/v2/i18n"
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"golang.org/x/text/language"
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"github.com/caos/zitadel/internal/api"
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http_util "github.com/caos/zitadel/internal/api/http"
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"github.com/caos/zitadel/internal/errors"
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)
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type Translator struct {
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bundle *i18n.Bundle
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cookieName string
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cookieHandler *http_util.CookieHandler
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}
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type TranslatorConfig struct {
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Path string
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DefaultLanguage language.Tag
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CookieName string
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}
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func NewTranslator(config TranslatorConfig) (*Translator, error) {
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t := new(Translator)
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var err error
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t.bundle, err = newBundle(config.Path, config.DefaultLanguage)
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if err != nil {
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return nil, err
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}
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t.cookieHandler = http_util.NewCookieHandler()
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t.cookieName = config.CookieName
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return t, nil
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}
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func newBundle(i18nDir string, defaultLanguage language.Tag) (*i18n.Bundle, error) {
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bundle := i18n.NewBundle(defaultLanguage)
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yamlUnmarshal := func(data []byte, v interface{}) error { return yaml.Unmarshal(data, v) }
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bundle.RegisterUnmarshalFunc("yaml", yamlUnmarshal)
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bundle.RegisterUnmarshalFunc("yml", yamlUnmarshal)
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bundle.RegisterUnmarshalFunc("json", json.Unmarshal)
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bundle.RegisterUnmarshalFunc("toml", toml.Unmarshal)
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files, err := ioutil.ReadDir(i18nDir)
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if err != nil {
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return nil, errors.ThrowNotFound(err, "HTML-MnXRie", "path not found")
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}
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for _, file := range files {
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bundle.MustLoadMessageFile(path.Join(i18nDir, file.Name()))
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}
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return bundle, nil
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}
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func (t *Translator) LocalizeFromRequest(r *http.Request, id string, args map[string]interface{}) string {
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s, err := t.localizerFromRequest(r).Localize(&i18n.LocalizeConfig{
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MessageID: id,
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TemplateData: args,
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})
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if err != nil {
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logging.Log("HTML-MsF5sx").WithError(err).Warnf("missing translation")
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return id
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}
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return s
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}
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func (t *Translator) Localize(id string, args map[string]interface{}) string {
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s, _ := t.localizer().Localize(&i18n.LocalizeConfig{
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MessageID: id,
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TemplateData: args,
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})
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return s
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}
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func (t *Translator) Lang(r *http.Request) language.Tag {
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matcher := language.NewMatcher(t.bundle.LanguageTags())
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tag, _ := language.MatchStrings(matcher, t.langsFromRequest(r)...)
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return tag
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}
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func (t *Translator) SetLangCookie(w http.ResponseWriter, lang language.Tag) {
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t.cookieHandler.SetCookie(w, t.cookieName, lang.String())
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}
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func (t *Translator) localizerFromRequest(r *http.Request) *i18n.Localizer {
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return t.localizer(t.langsFromRequest(r)...)
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}
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func (t *Translator) localizer(langs ...string) *i18n.Localizer {
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return i18n.NewLocalizer(t.bundle, langs...)
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}
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func (t *Translator) langsFromRequest(r *http.Request) []string {
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langs := make([]string, 0)
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if r != nil {
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lang, err := t.cookieHandler.GetCookieValue(r, t.cookieName)
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if err == nil {
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langs = append(langs, lang)
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}
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langs = append(langs, r.Header.Get(api.AcceptLanguage))
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}
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return langs
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}
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