Fix router error message's i18n

conf/conf.go

@@ -105,6 +105,20 @@ func GetConfigDataSourceName() string {
 	return dataSourceName
 }
 
+func GetLanguage(language string) string {
+	if language == "" {
+		return "en"
+	}
+
+	language = language[0:2]
+
+	if strings.Contains(GetConfigString("languages"), language) {
+		return language
+	} else {
+		return "en"
+	}
+}
+
 func IsDemoMode() bool {
 	return strings.ToLower(GetConfigString("isDemoMode")) == "true"
 }

controllers/util.go

@@ -17,7 +17,6 @@ package controllers
 import (
 	"fmt"
 	"strconv"
-	"strings"
 
 	"github.com/casdoor/casdoor/conf"
 	"github.com/casdoor/casdoor/i18n"
@@ -56,11 +55,8 @@ func (c *ApiController) T(error string) string {
 
 // GetAcceptLanguage ...
 func (c *ApiController) GetAcceptLanguage() string {
-	lang := c.Ctx.Request.Header.Get("Accept-Language")
-	if lang == "" || !strings.Contains(conf.GetConfigString("languages"), lang[0:2]) {
-		lang = "en"
-	}
-	return lang[0:2]
+	language := c.Ctx.Request.Header.Get("Accept-Language")
+	return conf.GetLanguage(language)
 }
 
 // SetTokenErrorHttpStatus ...

routers/base.go

@@ -19,6 +19,8 @@ import (
 	"strings"
 
 	"github.com/beego/beego/context"
+	"github.com/casdoor/casdoor/conf"
+	"github.com/casdoor/casdoor/i18n"
 	"github.com/casdoor/casdoor/object"
 	"github.com/casdoor/casdoor/util"
 )
@@ -46,8 +48,17 @@ func responseError(ctx *context.Context, error string, data ...interface{}) {
 	}
 }
 
+func getAcceptLanguage(ctx *context.Context) string {
+	language := ctx.Request.Header.Get("Accept-Language")
+	return conf.GetLanguage(language)
+}
+
+func T(ctx *context.Context, error string) string {
+	return i18n.Translate(getAcceptLanguage(ctx), error)
+}
+
 func denyRequest(ctx *context.Context) {
-	responseError(ctx, "Unauthorized operation")
+	responseError(ctx, T(ctx, "auth:Unauthorized operation"))
 }
 
 func getUsernameByClientIdSecret(ctx *context.Context) string {

web/src/backend/FetchFilter.js

@@ -31,7 +31,7 @@ const demoModeCallback = (res) => {
         okText: i18next.t("user:OK"),
         cancelText: i18next.t("general:Cancel"),
         onOk() {
-          Setting.openLink(`https://demo.casdoor.com${location.path}${location.search}?username=built-in/admin&password=123`);
+          Setting.openLink(`https://demo.casdoor.com${location.pathname}${location.search}?username=built-in/admin&password=123`);
         },
         onCancel() {},
       });