Ch. 16 Routing Adv (until 16-21)

UrlsAndRoutes/Infrastructure/LegacyRoute.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+using System.Web.Mvc;
+using System.Web.Routing;
+
+namespace UrlsAndRoutes.Infrastructure
+{
+	public class LegacyRoute : RouteBase
+	{
+		private string[] urls;
+
+		public LegacyRoute(params string[] targetUrls)
+		{
+			urls = targetUrls;
+		}
+
+		public override RouteData GetRouteData(HttpContextBase httpContext)
+		{
+			RouteData result = null;
+
+			string requestedUrl = httpContext.Request.AppRelativeCurrentExecutionFilePath;
+			if (urls.Contains(requestedUrl, StringComparer.OrdinalIgnoreCase))
+			{
+				result = new RouteData(this, new MvcRouteHandler());
+				result.Values.Add("controller", "Legacy");
+				result.Values.Add("action", "GetLegacyURL");
+				result.Values.Add("legacyURL", requestedUrl);
+			}
+
+			return result;
+		}
+
+		public override VirtualPathData GetVirtualPath(RequestContext requestContext, RouteValueDictionary values)
+		{
+			VirtualPathData result = null;
+
+			if (values.ContainsKey("legacyURL") && urls.Contains((string)values["legacyURL"], StringComparer.OrdinalIgnoreCase))
+			{
+				result = new VirtualPathData(this, new UrlHelper(requestContext).Content((string)values["legacyURL"]).Substring(1));
+			}
+
+			return result;
+		}
+	}
+}