404

src/Blog.Web/Actions/DisplayErrors/DisplayErrorsController.cs

@@ -0,0 +1,13 @@
+using System.Web.Mvc;
+
+namespace Blog.Web.Actions.DisplayErrors
+{
+    public class DisplayErrorsController : Controller
+    {
+        public ActionResult Http404()
+        {
+            return View();
+        }
+
+    }
+}

src/Blog.Web/Actions/DisplayErrors/Http404.cshtml

@@ -0,0 +1,10 @@
+@model dynamic
+
+@{
+    ViewBag.Title = "404";
+    Layout = "~/Views/_Layout.cshtml";
+}
+
+<h2>404</h2>
+
+Hmmm. The page you're looking for seems to be missing.

src/Blog.Web/Blog.Web.csproj

@@ -98,6 +98,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Actions\AtomGet\AtomGetController.cs" />
+    <Compile Include="Actions\DisplayErrors\DisplayErrorsController.cs" />
     <Compile Include="Actions\PostGet\PostGetController.cs" />
     <Compile Include="Infrastructure\AlternateViewEngine.cs" />
     <Compile Include="Global.asax.cs">
@@ -270,6 +271,9 @@
   <ItemGroup>
     <Content Include="Content\posts\vessel-modules.markdown" />
   </ItemGroup>
+  <ItemGroup>
+    <Content Include="Actions\DisplayErrors\Http404.cshtml" />
+  </ItemGroup>
   <PropertyGroup>
     <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion>
     <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>

src/Blog.Web/Global.asax.cs

@@ -1,5 +1,7 @@
-using System.Web.Mvc;
+using System.Web;
+using System.Web.Mvc;
 using System.Web.Routing;
+using Blog.Web.Actions.DisplayErrors;
 using Blog.Web.Infrastructure;
 using Blog.Web.Initialization;
 
@@ -18,5 +20,21 @@ protected void Application_Start()
 			ViewEngines.Engines.Clear();
 			ViewEngines.Engines.Add(new AlternateViewEngine());
 		}
+
+		//http://stackoverflow.com/a/9026907/214073
+		protected void Application_EndRequest()
+		{
+			if (Context.Response.StatusCode == 404)
+			{
+				Response.Clear();
+
+				var rd = new RouteData();
+				rd.Values["controller"] = "DisplayErrors";
+				rd.Values["action"] = "Http404";
+
+				IController c = new DisplayErrorsController();
+				c.Execute(new RequestContext(new HttpContextWrapper(Context), rd));
+			}
+		}
 	}
 }