gistfile1.cs

using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.Mvc;
using ServiceStack.Text;
using Devnos.Core.DataAccess.Model;
using Munq.MVC3;

namespace Devnos.Core.Web.ActionFilters
{
    public class ParamSerializationFilter : ActionFilterAttribute
    {
        enum AllowedMethods
        {
            GET,
            POST,
            PUT,
        }

        private IModelTypes ModelTypes { get; set; }

        public ParamSerializationFilter()
        {
            ModelTypes = MunqDependencyResolver.Container.Resolve<IModelTypes>();
        }

        public override void OnActionExecuting(ActionExecutingContext filterContext)
        {
            if (!Enum.GetNames(typeof(AllowedMethods)).Any(n => n == filterContext.HttpContext.Request.HttpMethod))
                throw new InvalidOperationException("Invalid Request: HttpMethod");

            foreach (var param in filterContext.ActionDescriptor.GetParameters())
            {
                if (ModelTypes.Contains(param.ParameterType))
                {
                    if ((filterContext.HttpContext.Request.ContentType ?? string.Empty) == ("application/json"))
                    {
                        filterContext.ActionParameters[param.ParameterName] =
                            JsonSerializer.DeserializeFromStream(param.ParameterType, filterContext.HttpContext.Request.InputStream);
                    }
                    else if (filterContext.HttpContext.Request.ContentType.Contains("xml"))
                    {
                        filterContext.ActionParameters[param.ParameterName] =
                        XmlSerializer.DeserializeFromStream(param.ParameterType, filterContext.HttpContext.Request.InputStream);
                    }
                }


            }


        }
    }
}