Refaktorierte HomeController, um standardmäßig das Culture-Cookie zu setzen, falls es fehlt, und die Kultur aus den übergebenen Query-Parametern zu übernehmen.

EnvelopeGenerator.Application/Resources/Resource.cs

@@ -1,4 +1,4 @@
-namespace EnvelopeGenerator.Application
+namespace EnvelopeGenerator.Application.Resources
 {
     /// <summary>
     /// The place holder class for Resource.*.resx

EnvelopeGenerator.Application/Services/ConfigService.cs

@@ -3,6 +3,7 @@ using DigitalData.Core.Application;
 using DigitalData.Core.DTO;
 using EnvelopeGenerator.Application.Contracts;
 using EnvelopeGenerator.Application.DTOs;
+using EnvelopeGenerator.Application.Resources;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Infrastructure.Contracts;
 using Microsoft.Extensions.Localization;

EnvelopeGenerator.Application/Services/DocumentReceiverElementService.cs

@@ -2,6 +2,7 @@
 using DigitalData.Core.Application;
 using EnvelopeGenerator.Application.Contracts;
 using EnvelopeGenerator.Application.DTOs;
+using EnvelopeGenerator.Application.Resources;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Infrastructure.Contracts;
 using Microsoft.Extensions.Localization;

EnvelopeGenerator.Application/Services/DocumentStatusService.cs

@@ -2,6 +2,7 @@
 using DigitalData.Core.Application;
 using EnvelopeGenerator.Application.Contracts;
 using EnvelopeGenerator.Application.DTOs;
+using EnvelopeGenerator.Application.Resources;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Infrastructure.Contracts;
 using Microsoft.Extensions.Localization;

EnvelopeGenerator.Application/Services/EmailOutService.cs

@@ -2,6 +2,7 @@
 using DigitalData.Core.Application;
 using EnvelopeGenerator.Application.Contracts;
 using EnvelopeGenerator.Application.DTOs;
+using EnvelopeGenerator.Application.Resources;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Infrastructure.Contracts;
 using Microsoft.Extensions.Localization;

EnvelopeGenerator.Application/Services/EmailTemplateService.cs

@@ -5,6 +5,7 @@ using EnvelopeGenerator.Application.Contracts;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Infrastructure.Contracts;
+using EnvelopeGenerator.Application.Resources;
 
 namespace EnvelopeGenerator.Application.Services
 {

EnvelopeGenerator.Application/Services/EnvelopeCertificateService.cs

@@ -5,6 +5,7 @@ using EnvelopeGenerator.Application.Contracts;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Infrastructure.Contracts;
+using EnvelopeGenerator.Application.Resources;
 
 namespace EnvelopeGenerator.Application.Services
 {

EnvelopeGenerator.Application/Services/EnvelopeDocumentService.cs

@@ -6,6 +6,7 @@ using EnvelopeGenerator.Application.Contracts;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Infrastructure.Contracts;
+using EnvelopeGenerator.Application.Resources;
 
 namespace EnvelopeGenerator.Application.Services
 {

EnvelopeGenerator.Application/Services/EnvelopeHistoryService.cs

@@ -6,6 +6,7 @@ using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Infrastructure.Contracts;
 using static EnvelopeGenerator.Common.Constants;
+using EnvelopeGenerator.Application.Resources;
 
 namespace EnvelopeGenerator.Application.Services
 {

EnvelopeGenerator.Application/Services/EnvelopeReceiverService.cs

@@ -3,6 +3,7 @@ using DigitalData.Core.Application;
 using DigitalData.Core.DTO;
 using EnvelopeGenerator.Application.Contracts;
 using EnvelopeGenerator.Application.DTOs;
+using EnvelopeGenerator.Application.Resources;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Infrastructure.Contracts;
 using Microsoft.Extensions.Localization;

EnvelopeGenerator.Application/Services/EnvelopeService.cs

@@ -3,6 +3,7 @@ using DigitalData.Core.Application;
 using DigitalData.Core.DTO;
 using EnvelopeGenerator.Application.Contracts;
 using EnvelopeGenerator.Application.DTOs;
+using EnvelopeGenerator.Application.Resources;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Infrastructure.Contracts;
 using Microsoft.Extensions.Localization;

EnvelopeGenerator.Application/Services/EnvelopeTypeService.cs

@@ -5,6 +5,7 @@ using EnvelopeGenerator.Application.Contracts;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Infrastructure.Contracts;
+using EnvelopeGenerator.Application.Resources;
 
 namespace EnvelopeGenerator.Application.Services
 {

EnvelopeGenerator.Application/Services/ReceiverService.cs

@@ -5,6 +5,7 @@ using EnvelopeGenerator.Application.Contracts;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Infrastructure.Contracts;
+using EnvelopeGenerator.Application.Resources;
 
 namespace EnvelopeGenerator.Application.Services
 {

EnvelopeGenerator.Application/Services/UserReceiverService.cs

@@ -5,6 +5,7 @@ using EnvelopeGenerator.Application.Contracts;
 using EnvelopeGenerator.Application.DTOs;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Infrastructure.Contracts;
+using EnvelopeGenerator.Application.Resources;
 
 namespace EnvelopeGenerator.Application.Services
 {

EnvelopeGenerator.Web/Controllers/HomeController.cs

@@ -15,6 +15,7 @@ using EnvelopeGenerator.Application.DTOs;
 using Microsoft.AspNetCore.Localization;
 using System.Text.Encodings.Web;
 using EnvelopeGenerator.Web.Models;
+using EnvelopeGenerator.Application.Resources;
 
 namespace EnvelopeGenerator.Web.Controllers
 {
@@ -76,11 +77,24 @@ namespace EnvelopeGenerator.Web.Controllers
         }
 
         [HttpGet("EnvelopeKey/{envelopeReceiverId}/Locked")]
-        public async Task<IActionResult> EnvelopeLocked([FromRoute] string envelopeReceiverId)
+        public async Task<IActionResult> EnvelopeLocked([FromRoute] string envelopeReceiverId, [FromQuery] string? culture)
         {
             try
             {
+                culture = culture is not null ? _urlEncoder.Encode(culture) : null;
                 envelopeReceiverId = _urlEncoder.Encode(envelopeReceiverId);
+
+                if (UserLanguage is null && culture is null)
+                {
+                    UserLanguage = _cultures.Default.Language;
+                    return Redirect($"{Request.Headers["Referer"]}?culture={_cultures.Default.Language}");
+                }
+
+                if (UserLanguage is not null && culture is not null)
+                {
+                    return Redirect($"Locked");
+                }
+
                 ViewData["UserLanguage"] = UserLanguage;
 
                 return await _envRcvService.IsExisting(envelopeReceiverId: envelopeReceiverId).ThenAsync(
@@ -250,32 +264,37 @@ namespace EnvelopeGenerator.Web.Controllers
         [HttpGet("lang")]
         public IActionResult GetLanguages() => Ok(_cultures.Languages);
 
-        private string UserLanguage
+        private string? UserLanguage
         {
             get
             {
                 var cookieValue = Request.Cookies[CookieRequestCultureProvider.DefaultCookieName];
 
                 if (string.IsNullOrEmpty(cookieValue))
-                    return _cultures.Default.Language;       
+                    return null;    
 
                 var culture = CookieRequestCultureProvider.ParseCookieValue(cookieValue)?.Cultures[0];
-                return culture?.Value ?? _cultures.Default.Language;
+                return culture?.Value ?? null;
             }
             set
             {
-                var cookieOptions = new CookieOptions()
+                if(value is null)
+                    Response.Cookies.Delete(CookieRequestCultureProvider.DefaultCookieName);
+                else
                 {
-                    Expires = DateTimeOffset.UtcNow.AddYears(1),
+                    var cookieOptions = new CookieOptions()
-                    Secure = false,
+                    {
-                    SameSite = SameSiteMode.Strict,
+                        Expires = DateTimeOffset.UtcNow.AddYears(1),
-                    HttpOnly = true
+                        Secure = false,
-                };
+                        SameSite = SameSiteMode.Strict,
+                        HttpOnly = true
+                    };
 
-                Response.Cookies.Append(
+                    Response.Cookies.Append(
-                    CookieRequestCultureProvider.DefaultCookieName,
+                        CookieRequestCultureProvider.DefaultCookieName,
-                    CookieRequestCultureProvider.MakeCookieValue(new RequestCulture(value)),
+                        CookieRequestCultureProvider.MakeCookieValue(new RequestCulture(value)),
-                    cookieOptions);
+                        cookieOptions);
+                }
             }
         }
 

EnvelopeGenerator.Web/Controllers/Test/TestLocalizerController.cs

@@ -1,5 +1,5 @@
 using AngleSharp.Common;
-using EnvelopeGenerator.Application;
+using EnvelopeGenerator.Application.Resources;
 using EnvelopeGenerator.Web.Models;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Localization;

EnvelopeGenerator.Web/Program.cs

@@ -71,8 +71,7 @@ try
 
     //AddEF Core dbcontext
     var connStr = config["Config:ConnectionString"];
-    builder.Services.AddDbContext<EGDbContext>(options =>
+    builder.Services.AddDbContext<EGDbContext>(options => options.UseSqlServer(connStr));
-        options.UseSqlServer(connStr));
 
     //Inject CRUD Service and repositoriesad
     builder.Services.AddScoped<IConfigRepository, ConfigRepository>();
@@ -156,7 +155,7 @@ try
 
     builder.Services.AddCookieConsentSettings();
 
-    builder.Services.AddCookieBasedLocalizer("Resources");
+    builder.Services.AddCookieBasedLocalizer();
     
     builder.Services.AddSingleton(HtmlEncoder.Default);
     builder.Services.AddSingleton(UrlEncoder.Default);
@@ -207,7 +206,7 @@ try
     app.UseAuthorization();
 
     var cultures = app.Services.GetRequiredService<Cultures>();
-    if(cultures.Any())
+    if(!cultures.Any())
         throw new InvalidOperationException(@"Languages section is missing in the appsettings. Please configure like following.
             Language is both a name of the culture and the name of the resx file such as Resource.de-DE.resx
             FIClass is the css class (in wwwroot/lib/flag-icons-main) for the flag of country.

EnvelopeGenerator.Web/Views/_ViewImports.cshtml

@@ -1,7 +1,7 @@
 @using EnvelopeGenerator.Web
 @using EnvelopeGenerator.Web.Models
 @using Microsoft.Extensions.Localization
-@using EnvelopeGenerator.Application
+@using EnvelopeGenerator.Application.Resources
 @inject IStringLocalizer<Resource> _localizer
 @inject System.Text.Encodings.Web.UrlEncoder _encoder
 @inject Ganss.Xss.HtmlSanitizer _sanitizer