From 90ca6aafe91b5eb29e23c640432fead3042b3b46 Mon Sep 17 00:00:00 2001
From: hishamco <hishamco_2007@yahoo.com>
Date: Sun, 24 Jan 2021 01:06:50 +0300
Subject: [PATCH] Set default language if the culture not supported

---
 Oqtane.Server/Pages/_Host.cshtml.cs | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/Oqtane.Server/Pages/_Host.cshtml.cs b/Oqtane.Server/Pages/_Host.cshtml.cs
index 662beb18..d93ead04 100644
--- a/Oqtane.Server/Pages/_Host.cshtml.cs
+++ b/Oqtane.Server/Pages/_Host.cshtml.cs
@@ -5,6 +5,7 @@ using Oqtane.Modules;
 using Oqtane.Models;
 using Oqtane.Themes;
 using System;
+using System.Globalization;
 using System.Linq;
 using System.Reflection;
 using Microsoft.AspNetCore.Http.Extensions;
@@ -45,18 +46,20 @@ namespace Oqtane.Pages
             // if framework is installed 
             if (!string.IsNullOrEmpty(_configuration.GetConnectionString("DefaultConnection")))
             {
-                Uri uri = new Uri(Request.GetDisplayUrl());
+                var uri = new Uri(Request.GetDisplayUrl());
                 var alias = _aliases.GetAlias(uri.Authority + "/" + uri.LocalPath.Substring(1));
                 _state.Alias = alias;
 
-                // set default language for site
-                var language = _languages.GetLanguages(alias.SiteId).Where(item => item.IsDefault).FirstOrDefault();
-                if (language != null)
+                // set default language for site if the culture is not supported
+                var languages = _languages.GetLanguages(alias.SiteId);
+                if (languages.All(l => l.Code != CultureInfo.CurrentUICulture.Name))
                 {
+                    var defaultLanguage = languages.Where(l => l.IsDefault).SingleOrDefault() ?? languages.First();
+
                     HttpContext.Response.Cookies.Append(
                         CookieRequestCultureProvider.DefaultCookieName,
                         CookieRequestCultureProvider.MakeCookieValue(
-                            new RequestCulture(language.Code)));
+                            new RequestCulture(defaultLanguage.Code)));
                 }
             }
         }