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.Security;
  37 using System.Text;
  38
  39 namespace System.ServiceModel.Channels
  40 {
  41         internal class HttpSimpleChannelListener<TChannel> : HttpChannelListenerBase<TChannel>
  42                 where TChannel : class, IChannel
  43         {
  44                 HttpListenerManager<TChannel> httpChannelManager;
  45
  46                 public HttpSimpleChannelListener (HttpTransportBindingElement source,
  47                         BindingContext context)
  48                         : base (source, context)
  49                 {
  50                 }
  51
  52                 public HttpListener Http {
  53                         get {  return httpChannelManager.HttpListener; }
  54                 }
  55
  56                 object creator_lock = new object ();
  57
  58                 protected override TChannel CreateChannel (TimeSpan timeout)
  59                 {
  60                         lock (creator_lock) {
  61                                 return CreateChannelCore (timeout);
  62                         }
  63                 }
  64
  65                 TChannel CreateChannelCore (TimeSpan timeout)
  66                 {
  67                         if (typeof (TChannel) == typeof (IReplyChannel))
  68                                 return (TChannel) (object) new HttpSimpleReplyChannel ((HttpSimpleChannelListener<IReplyChannel>) (object) this);
  69                         // FIXME: session channel support
  70                         if (typeof (TChannel) == typeof (IReplySessionChannel))
  71                                 throw new NotImplementedException ();
  72
  73                         throw new NotSupportedException (String.Format ("Channel type {0} is not supported", typeof (TChannel)));
  74                 }
  75
  76                 protected override void OnOpen (TimeSpan timeout)
  77                 {
  78                         base.OnOpen (timeout);
  79                         StartListening (timeout);
  80                 }
  81
  82                 protected override void OnAbort ()
  83                 {
  84                         httpChannelManager.Stop (true);
  85                 }
  86
  87                 protected override void OnClose (TimeSpan timeout)
  88                 {
  89                         if (State == CommunicationState.Closed)
  90                                 return;
  91                         base.OnClose (timeout);
  92                         // FIXME: it is said that channels are not closed
  93                         // when the channel listener is closed.
  94                         // http://blogs.msdn.com/drnick/archive/2006/03/22/557642.aspx
  95                         httpChannelManager.Stop (false);
  96                 }
  97
  98                 void StartListening (TimeSpan timeout)
  99                 {
 100                         httpChannelManager = new HttpListenerManager<TChannel> (this);
 101                         httpChannelManager.Open (timeout);
 102                 }
 103         }
 104
 105         internal class AspNetChannelListener<TChannel> : HttpChannelListenerBase<TChannel>
 106                 where TChannel : class, IChannel
 107         {
 108                 public AspNetChannelListener (HttpTransportBindingElement source,
 109                         BindingContext context)
 110                         : base (source, context)
 111                 {
 112                 }
 113
 114                 SvcHttpHandler http_handler;
 115                 internal SvcHttpHandler HttpHandler {
 116                         get {
 117                                 if (http_handler == null)
 118                                         http_handler = SvcHttpHandlerFactory.GetHandlerForListener (this);
 119                                 return http_handler;
 120                         }
 121                 }
 122
 123                 protected override TChannel CreateChannel (TimeSpan timeout)
 124                 {
 125                         if (typeof (TChannel) == typeof (IReplyChannel))
 126                                 return (TChannel) (object) new AspNetReplyChannel ((AspNetChannelListener<IReplyChannel>) (object) this);
 127                         // FIXME: session channel support
 128                         if (typeof (TChannel) == typeof (IReplySessionChannel))
 129                                 throw new NotImplementedException ();
 130
 131                         throw new NotSupportedException (String.Format ("Channel type {0} is not supported", typeof (TChannel)));
 132                 }
 133         }
 134
 135         internal abstract class HttpChannelListenerBase<TChannel> : InternalChannelListenerBase<TChannel>
 136                 where TChannel : class, IChannel
 137         {
 138                 HttpTransportBindingElement source;
 139                 BindingContext context;
 140                 List<TChannel> channels = new List<TChannel> ();
 141                 MessageEncoder encoder;
 142
 143                 public HttpChannelListenerBase (HttpTransportBindingElement source,
 144                         BindingContext context)
 145                         : base (context)
 146                 {
 147                         foreach (BindingElement be in context.RemainingBindingElements) {
 148                                 MessageEncodingBindingElement mbe = be as MessageEncodingBindingElement;
 149                                 if (mbe != null) {
 150                                         encoder = CreateEncoder<TChannel> (mbe);
 151                                         break;
 152                                 }
 153                         }
 154                         if (encoder == null)
 155                                 encoder = new TextMessageEncoder (MessageVersion.Default, Encoding.UTF8);
 156                 }
 157
 158                 public MessageEncoder MessageEncoder {
 159                         get { return encoder; }
 160                 }
 161
 162                 protected IList<TChannel> Channels {
 163                         get { return channels; }
 164                 }
 165
 166                 protected override TChannel OnAcceptChannel (TimeSpan timeout)
 167                 {
 168                         TChannel ch = CreateChannel (timeout);
 169                         Channels.Add (ch);
 170                         return ch;
 171                 }
 172
 173                 protected abstract TChannel CreateChannel (TimeSpan timeout);
 174
 175                 protected override bool OnWaitForChannel (TimeSpan timeout)
 176                 {
 177                         throw new NotImplementedException ();
 178                 }
 179
 180                 protected override void OnAbort ()
 181                 {
 182                         OnClose (TimeSpan.Zero);
 183                 }
 184
 185                 protected override void OnOpen (TimeSpan timeout)
 186                 {
 187                 }
 188
 189                 protected override void OnClose (TimeSpan timeout)
 190                 {
 191                         DateTime start = DateTime.Now;
 192                         foreach (TChannel ch in new List<TChannel> (Channels)) // they will be removed during iteration, so create another one
 193                                 ch.Close (timeout - (DateTime.Now - start));
 194                         base.OnClose (timeout - (DateTime.Now - start));
 195                 }
 196         }
 197 }