Attach auth server current culture info to response.

framework/src/Volo.Abp.AspNetCore.Authentication.OpenIdConnect/Microsoft/Extensions/DependencyInjection/AbpOpenIdConnectExtensions.cs

@@ -3,11 +3,15 @@ using System.Threading.Tasks;
 using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Authentication.OAuth.Claims;
 using Microsoft.AspNetCore.Authentication.OpenIdConnect;
+using Microsoft.AspNetCore.Localization;
+using Microsoft.AspNetCore.RequestLocalization;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 using Microsoft.IdentityModel.Protocols.OpenIdConnect;
+using Volo.Abp;
 using Volo.Abp.AspNetCore.Authentication.OpenIdConnect;
 using Volo.Abp.AspNetCore.MultiTenancy;
+using Volo.Abp.Localization;
 using Volo.Abp.Security.Claims;
 
 namespace Microsoft.Extensions.DependencyInjection;
@@ -52,6 +56,7 @@ public static class AbpOpenIdConnectExtensions
 
             options.Events.OnTokenValidated = async (context) =>
             {
+                var logger = context.HttpContext.RequestServices.GetRequiredService<ILogger<AbpAspNetCoreAuthenticationOpenIdConnectModule>>();
                 var client = context.HttpContext.RequestServices.GetRequiredService<IOpenIdLocalUserCreationClient>();
                 try
                 {
@@ -59,8 +64,28 @@ public static class AbpOpenIdConnectExtensions
                 }
                 catch (Exception ex)
                 {
-                    var logger = context.HttpContext.RequestServices.GetService<ILogger<AbpAspNetCoreAuthenticationOpenIdConnectModule>>();
-                    logger?.LogException(ex);
+                    logger.LogException(ex);
+                }
+
+                var culture = context.ProtocolMessage.GetParameter("culture");
+                var uiCulture = context.ProtocolMessage.GetParameter("ui-culture");
+                if (CultureHelper.IsValidCultureCode(culture) && CultureHelper.IsValidCultureCode(uiCulture))
+                {
+                    context.Response.OnStarting(() =>
+                    {
+                        logger.LogInformation($"Setting culture and ui-culture to the response. culture: {culture}, ui-culture: {uiCulture}");
+
+                        AbpRequestCultureCookieHelper.SetCultureCookie(
+                            context.HttpContext,
+                            new RequestCulture(culture, uiCulture)
+                        );
+
+                        return Task.CompletedTask;
+                    });
+                }
+                else
+                {
+                    logger.LogWarning($"Invalid culture or ui-culture parameter in the OpenIdConnect response. culture: {culture}, ui-culture: {uiCulture}");
                 }
             };
 

modules/openiddict/src/Volo.Abp.OpenIddict.AspNetCore/Volo/Abp/OpenIddict/AbpOpenIddictAspNetCoreModule.cs

@@ -5,6 +5,7 @@ using OpenIddict.Server;
 using Volo.Abp.AspNetCore.MultiTenancy;
 using Volo.Abp.AspNetCore.Mvc.UI.Theme.Shared;
 using Volo.Abp.Modularity;
+using Volo.Abp.OpenIddict.Globalization;
 using Volo.Abp.OpenIddict.Scopes;
 using Volo.Abp.OpenIddict.WildcardDomains;
 using Volo.Abp.Security.Claims;
@@ -136,6 +137,7 @@ public class AbpOpenIddictAspNetCoreModule : AbpModule
 
                 builder.AddEventHandler(RemoveClaimsFromClientCredentialsGrantType.Descriptor);
                 builder.AddEventHandler(AttachScopes.Descriptor);
+                builder.AddEventHandler(AttachCultureInfo.Descriptor);
 
                 services.ExecutePreConfiguredActions(builder);
             });

modules/openiddict/src/Volo.Abp.OpenIddict.AspNetCore/Volo/Abp/OpenIddict/AbpOpenIddictOptions.cs

@@ -15,4 +15,9 @@ public class AbpOpenIddictAspNetCoreOptions
     /// Default: true.
     /// </summary>
     public bool AddDevelopmentEncryptionAndSigningCertificate { get; set; } = true;
+
+    /// <summary>
+    /// Attach auth server current culture info to response.
+    /// </summary>
+    public bool AttachCultureInfo { get; set; } = true;
 }

modules/openiddict/src/Volo.Abp.OpenIddict.AspNetCore/Volo/Abp/OpenIddict/Globalization/AttachCultureInfo.cs

@@ -0,0 +1,43 @@
+using System.Globalization;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Options;
+using OpenIddict.Server;
+
+namespace Volo.Abp.OpenIddict.Globalization;
+
+public class AttachCultureInfo : IOpenIddictServerHandler<OpenIddictServerEvents.ApplyAuthorizationResponseContext>
+{
+    public static OpenIddictServerHandlerDescriptor Descriptor { get; }
+        = OpenIddictServerHandlerDescriptor.CreateBuilder<OpenIddictServerEvents.ApplyAuthorizationResponseContext>()
+            .UseSingletonHandler<AttachCultureInfo>()
+            .SetOrder(OpenIddictServerHandlers.Authentication.AttachIssuer.Descriptor.Order + 1_000)
+            .SetType(OpenIddictServerHandlerType.Custom)
+            .Build();
+
+    protected IOptions<AbpOpenIddictAspNetCoreOptions> Options { get; }
+
+    public AttachCultureInfo(IOptions<AbpOpenIddictAspNetCoreOptions> options)
+    {
+        Options = options;
+    }
+
+    public ValueTask HandleAsync(OpenIddictServerEvents.ApplyAuthorizationResponseContext context)
+    {
+        Check.NotNull(context, nameof(context));
+
+        if (Options.Value.AttachCultureInfo)
+        {
+            if (!context.Response.HasParameter("culture"))
+            {
+                context.Response.SetParameter("culture", CultureInfo.CurrentCulture.Name);
+            }
+
+            if (!context.Response.HasParameter("ui-culture"))
+            {
+                context.Response.SetParameter("ui-culture", CultureInfo.CurrentUICulture.Name);
+            }
+        }
+
+        return default;
+    }
+}