2 // System.Net.ListenerAsyncResult
5 // Gonzalo Paniagua Javier (gonzalo@ximian.com)
7 // Copyright (c) 2005 Ximian, Inc (http://www.ximian.com)
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 #if NET_2_0 && SECURITY_DEP
33 using System.Threading;
34 namespace System.Net {
35 class ListenerAsyncResult : IAsyncResult {
36 ManualResetEvent handle;
42 HttpListenerContext context;
43 object locker = new object ();
44 ListenerAsyncResult forward;
45 internal bool EndCalled;
48 public ListenerAsyncResult (AsyncCallback cb, object state)
54 internal void Complete (Exception exc)
56 if (forward != null) {
57 forward.Complete (exc);
61 if (InGet && (exc is ObjectDisposedException))
62 exception = new HttpListenerException (500, "Listener closed");
69 ThreadPool.UnsafeQueueUserWorkItem (InvokeCB, this);
73 static WaitCallback InvokeCB = new WaitCallback (InvokeCallback);
74 static void InvokeCallback (object o)
76 ListenerAsyncResult ares = (ListenerAsyncResult) o;
77 if (ares.forward != null) {
78 InvokeCallback (ares.forward);
87 internal void Complete (HttpListenerContext context)
89 Complete (context, false);
92 internal void Complete (HttpListenerContext context, bool synch)
94 if (forward != null) {
95 forward.Complete (context, synch);
99 this.context = context;
101 AuthenticationSchemes schemes = context.Listener.SelectAuthenticationScheme (context);
102 if ((schemes == AuthenticationSchemes.Basic || context.Listener.AuthenticationSchemes == AuthenticationSchemes.Negotiate) && context.Request.Headers ["Authorization"] == null) {
103 context.Response.StatusCode = 401;
104 context.Response.Headers ["WWW-Authenticate"] = schemes + " realm=\"" + context.Listener.Realm + "\"";
105 context.Response.OutputStream.Close ();
106 IAsyncResult ares = context.Listener.BeginGetContext (cb, state);
107 this.forward = (ListenerAsyncResult) ares;
108 lock (forward.locker) {
110 forward.handle = handle;
112 ListenerAsyncResult next = forward;
113 for (int i = 0; next.forward != null; i++) {
115 Complete (new HttpListenerException (400, "Too many authentication errors"));
124 ThreadPool.UnsafeQueueUserWorkItem (InvokeCB, this);
129 internal HttpListenerContext GetContext ()
132 return forward.GetContext ();
133 if (exception != null)
139 public object AsyncState {
142 return forward.AsyncState;
147 public WaitHandle AsyncWaitHandle {
150 return forward.AsyncWaitHandle;
154 handle = new ManualResetEvent (completed);
161 public bool CompletedSynchronously {
164 return forward.CompletedSynchronously;
170 public bool IsCompleted {
173 return forward.IsCompleted;