mcs/class/System.ServiceModel/old-code/HttpChannelListener.cs

   1 //
   2 // HttpChannelListener.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2005 Novell, Inc.  http://www.novell.com
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28 using System;
  29 using System.Collections.Generic;
  30 using System.Collections.ObjectModel;
  31 using System.Linq;
  32 using System.Net;
  33 using System.Net.Security;
  34 using System.ServiceModel;
  35 using System.ServiceModel.Description;
  36 using System.ServiceModel.Dispatcher;
  37 using System.ServiceModel.Security;
  38 using System.Text;
  39 using System.Threading;
  40
  41 namespace System.ServiceModel.Channels
  42 {
  43         internal class HttpSimpleChannelListener<TChannel> : HttpChannelListenerBase<TChannel>
  44                 where TChannel : class, IChannel
  45         {
  46                 public HttpSimpleChannelListener (HttpTransportBindingElement source,
  47                         BindingContext context)
  48                         : base (source, context)
  49                 {
  50                 }
  51
  52                 protected override TChannel CreateChannel (TimeSpan timeout)
  53                 {
  54                         lock (ThisLock) {
  55                                 return CreateChannelCore (timeout);
  56                         }
  57                 }
  58
  59                 TChannel CreateChannelCore (TimeSpan timeout)
  60                 {
  61                         if (typeof (TChannel) == typeof (IReplyChannel))
  62                                 return (TChannel) (object) new HttpSimpleReplyChannel ((HttpSimpleChannelListener<IReplyChannel>) (object) this);
  63
  64                         throw new NotSupportedException (String.Format ("Channel type {0} is not supported", typeof (TChannel)));
  65                 }
  66
  67                 protected override HttpListenerManager CreateListenerManager ()
  68                 {
  69                         return new HttpSimpleListenerManager (this, Source, SecurityTokenManager, ChannelDispatcher);
  70                 }
  71         }
  72
  73         internal class AspNetChannelListener<TChannel> : HttpChannelListenerBase<TChannel>
  74                 where TChannel : class, IChannel
  75         {
  76                 public AspNetChannelListener (HttpTransportBindingElement source,
  77                         BindingContext context)
  78                         : base (source, context)
  79                 {
  80                 }
  81
  82                 protected override TChannel CreateChannel (TimeSpan timeout)
  83                 {
  84                         if (typeof (TChannel) == typeof (IReplyChannel))
  85                                 return (TChannel) (object) new AspNetReplyChannel ((AspNetChannelListener<IReplyChannel>) (object) this);
  86
  87                         throw new NotSupportedException (String.Format ("Channel type {0} is not supported", typeof (TChannel)));
  88                 }
  89
  90                 protected override HttpListenerManager CreateListenerManager ()
  91                 {
  92                         return new AspNetListenerManager (this, Source, SecurityTokenManager, ChannelDispatcher);
  93                 }
  94         }
  95
  96         internal interface IChannelDispatcherBoundListener
  97         {
  98                 ChannelDispatcher ChannelDispatcher { get; set; }
  99         }
 100
 101         internal abstract class HttpChannelListenerBase<TChannel> : InternalChannelListenerBase<TChannel>, IChannelDispatcherBoundListener
 102                 where TChannel : class, IChannel
 103         {
 104                 HttpListenerManager httpChannelManager;
 105
 106                 public HttpChannelListenerBase (HttpTransportBindingElement source,
 107                         BindingContext context)
 108                         : base (context)
 109                 {
 110                         if (ServiceHostBase.CurrentServiceHostHack != null)
 111                                 DispatcherBuilder.ChannelDispatcherSetter = delegate (ChannelDispatcher cd) { this.ChannelDispatcher = cd; };
 112
 113                         this.Source = source;
 114                         // The null Uri check looks weird, but it seems the listener can be built without it.
 115                         // See HttpTransportBindingElementTest.BuildChannelListenerWithoutListenUri().
 116                         if (Uri != null && source.Scheme != Uri.Scheme)
 117                                 throw new ArgumentException (String.Format ("Requested listen uri scheme must be {0}, but was {1}.", source.Scheme, Uri.Scheme));
 118
 119                         foreach (BindingElement be in context.Binding.Elements) {
 120                                 MessageEncodingBindingElement mbe = be as MessageEncodingBindingElement;
 121                                 if (mbe != null) {
 122                                         MessageEncoder = CreateEncoder<TChannel> (mbe);
 123                                         break;
 124                                 }
 125                         }
 126                         if (MessageEncoder == null)
 127                                 MessageEncoder = new TextMessageEncoder (MessageVersion.Default, Encoding.UTF8);
 128
 129                         if (context.BindingParameters.Contains (typeof (ServiceCredentials)))
 130                                 SecurityTokenManager = new ServiceCredentialsSecurityTokenManager ((ServiceCredentials) context.BindingParameters [typeof (ServiceCredentials)]);
 131                 }
 132
 133                 public ChannelDispatcher ChannelDispatcher { get; set; }
 134
 135                 public HttpTransportBindingElement Source { get; private set; }
 136
 137                 public HttpListenerManager ListenerManager {
 138                         get {  return httpChannelManager; }
 139                 }
 140
 141                 public ServiceCredentialsSecurityTokenManager SecurityTokenManager { get; private set; }
 142
 143                 ManualResetEvent accept_channel_handle = new ManualResetEvent (true);
 144
 145                 protected override TChannel OnAcceptChannel (TimeSpan timeout)
 146                 {
 147                         // HTTP channel listeners do not accept more than one channel at a time.
 148                         DateTime start = DateTime.UtcNow;
 149                         accept_channel_handle.WaitOne (timeout - (DateTime.UtcNow - start));
 150                         accept_channel_handle.Reset ();
 151                         TChannel ch = CreateChannel (timeout - (DateTime.UtcNow - start));
 152                         ch.Closed += delegate {
 153                                 accept_channel_handle.Set ();
 154                         };
 155                         return ch;
 156                 }
 157
 158                 protected abstract TChannel CreateChannel (TimeSpan timeout);
 159
 160                 protected override bool OnWaitForChannel (TimeSpan timeout)
 161                 {
 162                         throw new NotImplementedException ();
 163                 }
 164
 165                 protected abstract HttpListenerManager CreateListenerManager ();
 166
 167                 protected override void OnOpen (TimeSpan timeout)
 168                 {
 169                         httpChannelManager = CreateListenerManager ();
 170                         Properties.Add (httpChannelManager);
 171                         httpChannelManager.Open (timeout);
 172                 }
 173
 174                 protected override void OnAbort ()
 175                 {
 176                         httpChannelManager.Stop (true);
 177                 }
 178
 179                 protected override void OnClose (TimeSpan timeout)
 180                 {
 181                         if (State == CommunicationState.Closed)
 182                                 return;
 183                         base.OnClose (timeout);
 184                         // The channels are kept open when the creator channel listener is closed.
 185                         // http://blogs.msdn.com/drnick/archive/2006/03/22/557642.aspx
 186                         httpChannelManager.Stop (false);
 187                 }
 188
 189                 // immediately stop accepting channel.
 190                 public override bool CancelAsync (TimeSpan timeout)
 191                 {
 192                         try {
 193                                 CurrentAsyncResult.AsyncWaitHandle.WaitOne (TimeSpan.Zero);
 194                         } catch (TimeoutException) {
 195                         }
 196                         return true;
 197                 }
 198         }
 199 }