//
// UrlRoutingModule.cs
//
// Author:
// Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2008 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.Threading;
using System.Web;
namespace System.Web.Routing{
#if NET_4_0
[TypeForwardedFrom ("System.Web.Routing, Version=3.5.0.0, Culture=Neutral, PublicKeyToken=31bf3856ad364e35")]
#endif
[AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public class UrlRoutingModule : IHttpModule
{
RouteCollection routes;
object module_identity_key = new object ();
object original_path_key = new object ();
public RouteCollection RouteCollection {
get {
if (routes == null)
routes = RouteTable.Routes;
return routes;
}
set { routes = value; }
}
protected virtual void Dispose ()
{
}
void IHttpModule.Dispose ()
{
Dispose ();
}
void IHttpModule.Init (HttpApplication application)
{
Init (application);
}
protected virtual void Init (HttpApplication application)
{
application.PostMapRequestHandler += PostMapRequestHandler;
application.PostResolveRequestCache += PostResolveRequestCache;
}
void PostMapRequestHandler (object o, EventArgs e)
{
var app = (HttpApplication) o;
PostMapRequestHandler (new HttpContextWrapper (app.Context));
}
void PostResolveRequestCache (object o, EventArgs e)
{
var app = (HttpApplication) o;
PostResolveRequestCache (new HttpContextWrapper (app.Context));
}
#if NET_4_0
[Obsolete]
#endif
public virtual void PostMapRequestHandler (HttpContextBase context)
{
if (context == null)
throw new ArgumentNullException ("context");
// FIXME: find out what it actually does.
IHttpHandler h = (IHttpHandler) context.Items [module_identity_key];
if (h != null)
context.Handler = h;
string original_path = context.Items [original_path_key] as string;
if (!String.IsNullOrEmpty (original_path))
context.RewritePath (original_path);
}
[MonoTODO]
public virtual void PostResolveRequestCache (HttpContextBase context)
{
if (context == null)
throw new ArgumentNullException ("context");
var rd = RouteCollection.GetRouteData (context);
if (rd == null)
return; // do nothing
if (rd.RouteHandler == null)
throw new InvalidOperationException ("No IRouteHandler is assigned to the selected route");
var rc = new RequestContext (context, rd);
IHttpHandler http = rd.RouteHandler.GetHttpHandler (rc);
if (http == null)
throw new InvalidOperationException ("The mapped IRouteHandler did not return an IHttpHandler");
// note: It does not resolve paths using GetVirtualPath():
//var vpd = RouteCollection.GetVirtualPath (rc, rd.Values);
//context.RewritePath (vpd.VirtualPath);
context.Items [original_path_key] = context.Request.Path;
// default handler (forbidden in MVC/DynamicData projects)
context.RewritePath ("~/UrlRouting.axd");
context.Items [module_identity_key] = http;
}
}
}
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