Context + ActionDescriptor + IFilter marker

src/Microsoft.AspNet.Mvc.Core/ActionDescriptor.cs

@@ -17,5 +17,7 @@ namespace Microsoft.AspNet.Mvc
         public List<IActionConstraint> DynamicConstraints { get; set; }
 
         public List<ParameterDescriptor> Parameters { get; set; }
+
+        public List<IFilter> Filters { get; set; }
     }
 }

src/Microsoft.AspNet.Mvc.Core/Filters/ActionFilterContext.cs

@@ -0,0 +1,19 @@
+using System.Collections.Generic;
+
+namespace Microsoft.AspNet.Mvc
+{
+    public class ActionFilterContext
+    {
+        public ActionFilterContext(ActionContext actionContext, IDictionary<string, object> actionParameters)
+        {
+            ActionContext = actionContext;
+            ActionParameters = actionParameters;
+        }
+
+        public virtual IDictionary<string, object> ActionParameters { get; private set; }
+
+        public virtual ActionContext ActionContext { get; private set; }
+
+        public virtual IActionResult Result { get; set; }
+    }
+}

src/Microsoft.AspNet.Mvc.Core/Filters/ActionResultFilterContext.cs

@@ -0,0 +1,14 @@
+namespace Microsoft.AspNet.Mvc
+{
+    public class ActionResultFilterContext
+    {
+        public ActionResultFilterContext(ActionContext actionContext)
+        {
+            ActionContext = actionContext;
+        }
+
+        public ActionContext ActionContext { get; private set; }
+
+        public IActionResult Result { get; set; }
+    }
+}

src/Microsoft.AspNet.Mvc.Core/Filters/AuthorizationFilterContext.cs

@@ -0,0 +1,39 @@
+namespace Microsoft.AspNet.Mvc
+{
+    public class AuthorizationFilterContext
+    {
+        private IActionResult _actionResult;
+        private bool _fail;
+
+        public AuthorizationFilterContext(ActionContext actionContext)
+        {
+            ActionContext = actionContext;
+        }
+
+        public bool HasFailed
+        {
+            get { return _fail; }
+        }
+
+        public ActionContext ActionContext { get; private set; }
+
+        public IActionResult ActionResult
+        {
+            get { return _actionResult; }
+            set
+            {
+                if (value != null)
+                {
+                    Fail();
+                }
+
+                _actionResult = value;
+            }
+        }
+
+        public void Fail()
+        {
+            _fail = true;
+        }
+    }
+}

src/Microsoft.AspNet.Mvc.Core/Filters/ExceptionFilterContext.cs

@@ -0,0 +1,20 @@
+using System;
+
+namespace Microsoft.AspNet.Mvc
+{
+    public class ExceptionFilterContext
+    {
+        public ExceptionFilterContext(ActionContext actionContext, Exception exception)
+        {
+            ActionContext = actionContext;
+            Exception = exception;
+        }
+
+        // TODO: Should we let the exception mutate in the pipeline. MVC lets you do that.
+        public virtual Exception Exception { get; set; }
+
+        public virtual ActionContext ActionContext { get; private set; }
+
+        public virtual IActionResult Result { get; set; }
+    }
+}

src/Microsoft.AspNet.Mvc.Core/Filters/IFilter.cs

@@ -0,0 +1,7 @@
+namespace Microsoft.AspNet.Mvc
+{
+    public interface IFilter
+    {
+        // Marker only interface to any IFilter gets picked up by the DefaultActionDescriptorProvider
+    }
+}