add configurable validation for binding sources

FluentValidation.AutoValidation.Endpoints/src/Filters/FluentValidationAutoValidationEndpointFilter.cs

@@ -23,7 +23,7 @@ public FluentValidationAutoValidationEndpointFilter(IServiceProvider serviceProv
             {
                 var argument = context.Arguments[i];
 
-                if (argument != null && serviceProvider.GetValidator(argument.GetType()) is IValidator validator)
+                if (argument != null && argument.GetType().IsCustomType() && serviceProvider.GetValidator(argument.GetType()) is IValidator validator)
                 {
                     var validationResult = await validator.ValidateAsync(new ValidationContext<object>(argument), context.HttpContext.RequestAborted);
 

FluentValidation.AutoValidation.Mvc/src/Configuration/AutoValidationMvcConfiguration.cs

@@ -1,5 +1,6 @@
 using System;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.ModelBinding;
 using SharpGrip.FluentValidation.AutoValidation.Mvc.Attributes;
 using SharpGrip.FluentValidation.AutoValidation.Mvc.Enums;
 using SharpGrip.FluentValidation.AutoValidation.Mvc.Results;
@@ -19,6 +20,21 @@ public class AutoValidationMvcConfiguration
         /// </summary>
         public ValidationStrategy ValidationStrategy { get; set; } = ValidationStrategy.All;
 
+        /// <summary>
+        /// Enables asynchronous automatic validation for parameters bound from the <see cref="BindingSource.Body"/> binding source (typically parameters decorated with the [FormBody] attribute).
+        /// </summary>
+        public bool EnableBodyBindingSourceAutomaticValidation { get; set; } = true;
+
+        /// <summary>
+        /// Enables asynchronous automatic validation for parameters bound from the <see cref="BindingSource.Form"/> binding source (typically parameters decorated with the [FromForm] attribute).
+        /// </summary>
+        public bool EnableFormBindingSourceAutomaticValidation { get; set; } = false;
+
+        /// <summary>
+        /// Enables asynchronous automatic validation for parameters bound from the <see cref="BindingSource.Query"/> binding source (typically parameters decorated with the [FormQuery] attribute).
+        /// </summary>
+        public bool EnableQueryBindingSourceAutomaticValidation { get; set; } = true;
+
         /// <summary>
         /// Holds the overridden result factory. This property is meant for infrastructure and should not be used by application code.
         /// </summary>

FluentValidation.AutoValidation.Mvc/src/Filters/FluentValidationAutoValidationActionFilter.cs

@@ -52,7 +52,10 @@ public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionE
                         var parameterType = parameter.ParameterType;
                         var bindingSource = parameter.BindingInfo?.BindingSource;
 
-                        if (subject != null && (bindingSource == BindingSource.Body || (bindingSource == BindingSource.Query && parameterType.IsClass)))
+                        if (subject != null && parameterType.IsCustomType() &&
+                            ((autoValidationMvcConfiguration.EnableBodyBindingSourceAutomaticValidation && bindingSource == BindingSource.Body) ||
+                             (autoValidationMvcConfiguration.EnableFormBindingSourceAutomaticValidation && bindingSource == BindingSource.Form) ||
+                             (autoValidationMvcConfiguration.EnableQueryBindingSourceAutomaticValidation && bindingSource == BindingSource.Query)))
                         {
                             if (serviceProvider.GetValidator(parameterType) is IValidator validator)
                             {
@@ -70,6 +73,14 @@ public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionE
                     }
                 }
 
+                if (autoValidationMvcConfiguration.DisableBuiltInModelValidation)
+                {
+                    foreach (var modelStateEntry in context.ModelState.Values.Where(modelStateEntry => modelStateEntry.ValidationState == ModelValidationState.Unvalidated))
+                    {
+                        modelStateEntry.ValidationState = ModelValidationState.Skipped;
+                    }
+                }
+
                 if (!context.ModelState.IsValid)
                 {
                     var validationProblemDetails = controllerBase.ProblemDetailsFactory.CreateValidationProblemDetails(context.HttpContext, context.ModelState);

FluentValidation.AutoValidation.Mvc/src/Validation/FluentValidationAutoValidationValidationVisitor.cs

@@ -1,8 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Reflection;
-using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.ModelBinding;
 using Microsoft.AspNetCore.Mvc.ModelBinding.Validation;
 
@@ -12,8 +8,6 @@ public class FluentValidationAutoValidationValidationVisitor : ValidationVisitor
     {
         private readonly bool disableBuiltInModelValidation;
 
-        private readonly List<Type> systemTypes = Assembly.GetExecutingAssembly().GetType().Module.Assembly.GetExportedTypes().ToList();
-
         public FluentValidationAutoValidationValidationVisitor(ActionContext actionContext,
             IModelValidatorProvider validatorProvider,
             ValidatorCache validatorCache,
@@ -27,33 +21,16 @@ public FluentValidationAutoValidationValidationVisitor(ActionContext actionConte
 
         public override bool Validate(ModelMetadata? metadata, string? key, object? model, bool alwaysValidateAtTopLevel)
         {
-            // For non-system class types return true for later validation in the action filter. For all other (system) types return the base validation result.
-            if (IsBuiltInValidationDisabledAndTypeIsClassAndNotSystemType(model))
-            {
-                return true;
-            }
-
-            return base.Validate(metadata, key, model, alwaysValidateAtTopLevel);
+            // If built in model validation is disabled return true for later validation in the action filter.
+            return disableBuiltInModelValidation || base.Validate(metadata, key, model, alwaysValidateAtTopLevel);
         }
 
 #if !NETCOREAPP3_1
         public override bool Validate(ModelMetadata? metadata, string? key, object? model, bool alwaysValidateAtTopLevel, object? container)
         {
-            // For non-system class types return true for later validation in the action filter. For all other (system) types return the base validation result.
-            if (IsBuiltInValidationDisabledAndTypeIsClassAndNotSystemType(model))
-            {
-                return true;
-            }
-
-            return base.Validate(metadata, key, model, alwaysValidateAtTopLevel, container);
+            // If built in model validation is disabled return true for later validation in the action filter.
+            return disableBuiltInModelValidation || base.Validate(metadata, key, model, alwaysValidateAtTopLevel, container);
         }
 #endif
-
-        private bool IsBuiltInValidationDisabledAndTypeIsClassAndNotSystemType(object? model)
-        {
-            var modelType = model?.GetType();
-
-            return disableBuiltInModelValidation && modelType != null && modelType.IsClass && !systemTypes.Contains(modelType);
-        }
     }
 }

FluentValidation.AutoValidation.Shared/src/Extensions/TypeExtensions.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Linq;
+
+namespace SharpGrip.FluentValidation.AutoValidation.Shared.Extensions
+{
+    public static class TypeExtensions
+    {
+        public static bool IsCustomType(this Type? type)
+        {
+            var builtInTypes = new[]
+            {
+                typeof(string),
+                typeof(decimal),
+                typeof(DateTime),
+                typeof(DateTimeOffset),
+                typeof(TimeSpan),
+                typeof(Guid)
+            };
+
+            return type != null && type.IsClass && !type.IsEnum && !type.IsValueType && !type.IsPrimitive && !builtInTypes.Contains(type);
+        }
+    }
+}

README.md

@@ -52,10 +52,13 @@ app.MapPost("/", (SomeOtherModel someOtherModel) => $"Hello again {someOtherMode
 
 ### MVC controllers
 
-| Property                      | Default value            | Description                                                                                                                                                                                                                                                                                                                                                                                                            |
-|-------------------------------|--------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| DisableBuiltInModelValidation | `false`                  | Disables the built-in .NET model (data annotations) validation.                                                                                                                                                                                                                                                                                                                                                        |
-| ValidationStrategy            | `ValidationStrategy.All` | Configures the validation strategy. Validation strategy `ValidationStrategy.All` enables asynchronous automatic validation on all controllers inheriting from `ControllerBase`. Validation strategy `ValidationStrategy.Annotations` enables asynchronous automatic validation on controllers inheriting from `ControllerBase` decorated (class or method) with a `FluentValidationAutoValidationAttribute` attribute. |
+| Property                                    | Default value            | Description                                                                                                                                                                                                                                                                                                                                                                                                            |
+|---------------------------------------------|--------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| DisableBuiltInModelValidation               | `false`                  | Disables the built-in .NET model (data annotations) validation.                                                                                                                                                                                                                                                                                                                                                        |
+| ValidationStrategy                          | `ValidationStrategy.All` | Configures the validation strategy. Validation strategy `ValidationStrategy.All` enables asynchronous automatic validation on all controllers inheriting from `ControllerBase`. Validation strategy `ValidationStrategy.Annotations` enables asynchronous automatic validation on controllers inheriting from `ControllerBase` decorated (class or method) with a `FluentValidationAutoValidationAttribute` attribute. |
+| EnableBodyBindingSourceAutomaticValidation  | `true`                   | Enables asynchronous automatic validation for parameters bound from the `BindingSource.Body` binding source (typically parameters decorated with the `[FormBody]` attribute).                                                                                                                                                                                                                                          |
+| EnableFormBindingSourceAutomaticValidation  | `false`                  | Enables asynchronous automatic validation for parameters bound from the `BindingSource.Form` binding source (typically parameters decorated with the `[FormForm]` attribute).                                                                                                                                                                                                                                          |
+| EnableQueryBindingSourceAutomaticValidation | `true`                   | Enables asynchronous automatic validation for parameters bound from the `BindingSource.Query` binding source (typically parameters decorated with the `[FormQuery]` attribute).                                                                                                                                                                                                                                        |
 
 ```
 using SharpGrip.FluentValidation.AutoValidation.Mvc.Extensions;
@@ -68,6 +71,15 @@ builder.Services.AddFluentValidationAutoValidation(configuration =>
     // Only validate controllers decorated with the `FluentValidationAutoValidation` attribute.
     configuration.ValidationStrategy = ValidationStrategy.Annotation;
 
+    // Enable validation for parameters bound from the `BindingSource.Body` binding source.
+    configuration.EnableBodyBindingSourceAutomaticValidation = true;
+
+    // Enable validation for parameters bound from the `BindingSource.Form` binding source.
+    configuration.EnableFormBindingSourceAutomaticValidation = true;
+
+    // Enable validation for parameters bound from the `BindingSource.Query` binding source.
+    configuration.EnableQueryBindingSourceAutomaticValidation = true;
+
     // Replace the default result factory with a custom implementation.
     configuration.OverrideDefaultResultFactoryWith<CustomResultFactory>();
 });

Tests/FluentValidation.AutoValidation.Endpoints.Tests/src/Extensions/ServiceCollectionExtensionsTest.cs

@@ -1,8 +1,6 @@
 using FluentValidation.Results;
 using Microsoft.AspNetCore.Http;
-using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Options;
 using SharpGrip.FluentValidation.AutoValidation.Endpoints.Extensions;
 using SharpGrip.FluentValidation.AutoValidation.Endpoints.Results;
 using Xunit;
@@ -42,6 +40,7 @@ private static void AssertContainsServiceDescriptor<TService, TImplementation>(S
                                                                  serviceDescriptor.ImplementationInstance?.GetType() == typeof(TImplementation)) &&
                                                                 serviceDescriptor.Lifetime == serviceLifetime);
     }
+    // ReSharper restore ParameterOnlyUsedForPreconditionCheck.Local
 
     // ReSharper disable ParameterOnlyUsedForPreconditionCheck.Local
     private static void AssertNotContainsServiceDescriptor<TService, TImplementation>(ServiceCollection serviceCollection, ServiceLifetime serviceLifetime)
@@ -52,6 +51,7 @@ private static void AssertNotContainsServiceDescriptor<TService, TImplementation
                                                                        serviceDescriptor.ImplementationInstance?.GetType() == typeof(TImplementation)) &&
                                                                       serviceDescriptor.Lifetime == serviceLifetime);
     }
+    // ReSharper restore ParameterOnlyUsedForPreconditionCheck.Local
 
     private class TestResultFactory : IFluentValidationAutoValidationResultFactory
     {