mcs/class/System.ServiceModel/System.ServiceModel.Channels/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
  40 namespace System.ServiceModel.Channels
  41 {
  42         internal class HttpSimpleChannelListener<TChannel> : HttpChannelListenerBase<TChannel>
  43                 where TChannel : class, IChannel
  44         {
  45                 public HttpSimpleChannelListener (HttpTransportBindingElement source,
  46                         BindingContext context)
  47                         : base (source, context)
  48                 {
  49                 }
  50
  51                 object creator_lock = new object ();
  52
  53                 protected override TChannel CreateChannel (TimeSpan timeout)
  54                 {
  55                         lock (creator_lock) {
  56                                 return CreateChannelCore (timeout);
  57                         }
  58                 }
  59
  60                 TChannel CreateChannelCore (TimeSpan timeout)
  61                 {
  62                         if (typeof (TChannel) == typeof (IReplyChannel))
  63                                 return (TChannel) (object) new HttpSimpleReplyChannel ((HttpSimpleChannelListener<IReplyChannel>) (object) this);
  64
  65                         throw new NotSupportedException (String.Format ("Channel type {0} is not supported", typeof (TChannel)));
  66                 }
  67
  68                 protected override HttpListenerManager CreateListenerManager ()
  69                 {
  70                         return new HttpSimpleListenerManager (this, Source, SecurityTokenManager, ChannelDispatcher);
  71                 }
  72         }
  73
  74         internal class AspNetChannelListener<TChannel> : HttpChannelListenerBase<TChannel>
  75                 where TChannel : class, IChannel
  76         {
  77                 public AspNetChannelListener (HttpTransportBindingElement source,
  78                         BindingContext context)
  79                         : base (source, context)
  80                 {
  81                 }
  82
  83                 protected override TChannel CreateChannel (TimeSpan timeout)
  84                 {
  85                         if (typeof (TChannel) == typeof (IReplyChannel))
  86                                 return (TChannel) (object) new AspNetReplyChannel ((AspNetChannelListener<IReplyChannel>) (object) this);
  87
  88                         throw new NotSupportedException (String.Format ("Channel type {0} is not supported", typeof (TChannel)));
  89                 }
  90
  91                 protected override HttpListenerManager CreateListenerManager ()
  92                 {
  93                         return new AspNetListenerManager (this, Source, SecurityTokenManager, ChannelDispatcher);
  94                 }
  95         }
  96
  97         internal abstract class HttpChannelListenerBase<TChannel> : InternalChannelListenerBase<TChannel>
  98                 where TChannel : class, IChannel
  99         {
 100                 List<TChannel> channels = new List<TChannel> ();
 101                 MessageEncoder encoder;
 102                 HttpListenerManager httpChannelManager;
 103
 104                 internal static HttpChannelListenerBase<TChannel>CurrentHttpChannelListener;
 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.RemainingBindingElements) {
 120                                 MessageEncodingBindingElement mbe = be as MessageEncodingBindingElement;
 121                                 if (mbe != null) {
 122                                         encoder = CreateEncoder<TChannel> (mbe);
 123                                         break;
 124                                 }
 125                         }
 126                         if (encoder == null)
 127                                 encoder = 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                 internal 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 MessageEncoder MessageEncoder {
 142                         get { return encoder; }
 143                 }
 144
 145                 public ServiceCredentialsSecurityTokenManager SecurityTokenManager { get; private set; }
 146
 147                 protected override TChannel OnAcceptChannel (TimeSpan timeout)
 148                 {
 149                         TChannel ch = CreateChannel (timeout);
 150                         return ch;
 151                 }
 152
 153                 protected abstract TChannel CreateChannel (TimeSpan timeout);
 154
 155                 protected override bool OnWaitForChannel (TimeSpan timeout)
 156                 {
 157                         throw new NotImplementedException ();
 158                 }
 159
 160                 protected abstract HttpListenerManager CreateListenerManager ();
 161
 162                 protected override void OnOpen (TimeSpan timeout)
 163                 {
 164                         httpChannelManager = CreateListenerManager ();
 165                         Properties.Add (httpChannelManager);
 166                         httpChannelManager.Open (timeout);
 167                 }
 168
 169                 protected override void OnAbort ()
 170                 {
 171                         httpChannelManager.Stop (true);
 172                 }
 173
 174                 protected override void OnClose (TimeSpan timeout)
 175                 {
 176                         if (State == CommunicationState.Closed)
 177                                 return;
 178                         base.OnClose (timeout);
 179                         // The channels are kept open when the creator channel listener is closed.
 180                         // http://blogs.msdn.com/drnick/archive/2006/03/22/557642.aspx
 181                         httpChannelManager.Stop (false);
 182                 }
 183         }
 184 }