Imported Upstream version 4.3.2.467

Former-commit-id: 9c2cb47f45fa221e661ab616387c9cda183f283d

mcs/class/System.Web/System.Web.Routing/UrlRoutingHandler.cs

@@ -0,0 +1,88 @@
+//
+// UrlRoutingHandler.cs
+//
+// Author:
+//	Atsushi Enomoto <atsushi@ximian.com>
+//
+// Copyright (C) 2008-2010 Novell Inc. http://novell.com
+//
+
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+using System;
+using System.Runtime.CompilerServices;
+using System.Security.Permissions;
+using System.Web;
+
+namespace System.Web.Routing
+{
+	[TypeForwardedFrom ("System.Web.Routing, Version=3.5.0.0, Culture=Neutral, PublicKeyToken=31bf3856ad364e35")]
+	[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
+	[AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
+	public abstract class UrlRoutingHandler : IHttpHandler
+	{
+		RouteCollection routes;
+
+		bool IHttpHandler.IsReusable {
+			get { return IsReusable; }
+		}
+
+		protected virtual bool IsReusable { get { return false; } }
+
+		public RouteCollection RouteCollection {
+			get {
+				if (routes == null)
+					routes = RouteTable.Routes;
+				return routes;
+			}
+			set { routes = value; }
+		}
+
+		void IHttpHandler.ProcessRequest (HttpContext context)
+		{
+			ProcessRequest (context);
+		}
+
+		protected virtual void ProcessRequest (HttpContext httpContext)
+		{
+			ProcessRequest (new HttpContextWrapper (httpContext));
+		}
+
+		protected virtual void ProcessRequest (HttpContextBase httpContext)
+		{
+			if (httpContext == null)
+				throw new ArgumentNullException ("httpContext");
+
+			var rd = RouteCollection.GetRouteData (httpContext);
+			if (rd == null)
+				throw new HttpException ("The incoming request does not match any route");
+			if (rd.RouteHandler == null)
+				throw new InvalidOperationException ("No  IRouteHandler is assigned to the selected route");
+
+			RequestContext rc = new RequestContext (httpContext, rd);
+
+			var hh = rd.RouteHandler.GetHttpHandler (rc);
+			VerifyAndProcessRequest (hh, httpContext);
+		}
+
+		protected abstract void VerifyAndProcessRequest (IHttpHandler httpHandler, HttpContextBase httpContext);
+	}
+}