1 files changed, 40 insertions, 0 deletions
diff --git a/src/System.Web.Mvc/ValidateAntiForgeryTokenAttribute.cs b/src/System.Web.Mvc/ValidateAntiForgeryTokenAttribute.cs
new file mode 100644
index 00000000..b948a0b0
--- /dev/null
+++ b/src/System.Web.Mvc/ValidateAntiForgeryTokenAttribute.cs
@@ -0,0 +1,40 @@
+using System.Diagnostics;
+using System.Web.Helpers;
+
+namespace System.Web.Mvc
+{
+    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
+    public sealed class ValidateAntiForgeryTokenAttribute : FilterAttribute, IAuthorizationFilter
+    {
+        private string _salt;
+
+        public ValidateAntiForgeryTokenAttribute()
+            : this(AntiForgery.Validate)
+        {
+        }
+
+        internal ValidateAntiForgeryTokenAttribute(Action<HttpContextBase, string> validateAction)
+        {
+            Debug.Assert(validateAction != null);
+            ValidateAction = validateAction;
+        }
+
+        public string Salt
+        {
+            get { return _salt ?? String.Empty; }
+            set { _salt = value; }
+        }
+
+        internal Action<HttpContextBase, string> ValidateAction { get; private set; }
+
+        public void OnAuthorization(AuthorizationContext filterContext)
+        {
+            if (filterContext == null)
+            {
+                throw new ArgumentNullException("filterContext");
+            }
+
+            ValidateAction(filterContext.HttpContext, Salt);
+        }
+    }
+}