language cookie expires error

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Localization/AbpLanguagesController.cs

@@ -1,5 +1,8 @@
-using Microsoft.AspNetCore.Localization;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Localization;
 using Microsoft.AspNetCore.Mvc;
+using System;
+using Volo.Abp.Settings;
 
 namespace Volo.Abp.AspNetCore.Mvc.Localization
 {
@@ -8,12 +11,40 @@ namespace Volo.Abp.AspNetCore.Mvc.Localization
     public class AbpLanguagesController : AbpController
     {
         [HttpGet]
-        public IActionResult Switch(string culture, string uiCulture = "") //TODO: Implement return URL
+        public IActionResult Switch(string culture, string uiCulture = "", string returnUrl = "")
         {
-            //TODO: Check allowed languages and so on...
+            if (!GlobalizationHelper.IsValidCultureCode(culture))
+            {
+                throw new AbpException("Unknown language: " + culture + ". It must be a valid culture!");
+            }
 
-            Response.Cookies.Append(CookieRequestCultureProvider.DefaultCookieName, $"c={culture}|uic={uiCulture ?? culture}");
+            string cookieValue = CookieRequestCultureProvider.MakeCookieValue(new RequestCulture(culture, uiCulture));
+
+            Response.Cookies.Append(CookieRequestCultureProvider.DefaultCookieName, cookieValue, new CookieOptions
+            {
+                Expires = Clock.Now.AddYears(2)
+            });
+
+            if (!string.IsNullOrWhiteSpace(returnUrl))
+            {
+                return Redirect(GetRedirectUrl(returnUrl));
+            }
             return Redirect("/");
         }
+
+        private string GetRedirectUrl(string returnUrl)
+        {
+            if (returnUrl.IsNullOrEmpty())
+            {
+                return "/";
+            }
+
+            if (Url.IsLocalUrl(returnUrl))
+            {
+                return returnUrl;
+            }
+
+            return "/";
+        }
     }
 }

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Localization/GlobalizationHelper.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Globalization;
+
+namespace Volo.Abp.AspNetCore.Mvc.Localization
+{
+    internal static class GlobalizationHelper
+    {
+        public static bool IsValidCultureCode(string cultureCode)
+        {
+            if (cultureCode.IsNullOrWhiteSpace())
+            {
+                return false;
+            }
+
+            try
+            {
+                CultureInfo.GetCultureInfo(cultureCode);
+                return true;
+            }
+            catch (CultureNotFoundException)
+            {
+                return false;
+            }
+        }
+    }
+}