﻿#region License
// Distributed under the BSD License
// =================================
// 
// Copyright (c) 2010-2011, Hadi Hariri and Project Contributors
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//     * Neither the name of Hadi Hariri nor the
//       names of its contributors may be used to endorse or promote products
//       derived from this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// =============================================================
#endregion

using System;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;

namespace EasyMVC.Routing
{
    public class RoutingHttpVerbConstraint : IRouteConstraint
    {
        readonly HttpVerbs _httpVerbs;

        public RoutingHttpVerbConstraint(HttpVerbs httpVerb)
        {
            _httpVerbs = httpVerb;
        }

       
        public bool Match(HttpContextBase httpContext, Route route, string parameterName, RouteValueDictionary values,
                          RouteDirection routeDirection)
        {
            if (routeDirection == RouteDirection.IncomingRequest)
            {
                var result =
                    (String.Compare(httpContext.Request.HttpMethod, _httpVerbs.ToString(),
                                    StringComparison.InvariantCultureIgnoreCase) == 0);

                return result;
            }
            return true;
        }

       
    }
}