class/System.Runtime.Remoting/System.Runtime.Remoting.Channels.Http/HttpChannel.cs

   1 //
   2 // HttpChannel.cs
   3 //
   4 // Author:
   5 //   Michael Hutchinson <mhutchinson@novell.com>
   6 //
   7 // Copyright (C) 2008 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
  29 using System.Collections;
  30 using System.Runtime.Remoting.Messaging;
  31
  32 namespace System.Runtime.Remoting.Channels.Http
  33 {
  34
  35         public class HttpChannel : BaseChannelWithProperties,
  36                 IChannel, IChannelReceiver, IChannelReceiverHook, IChannelSender
  37 #if NET_2_0
  38                 , ISecurableChannel
  39 #endif
  40         {
  41                 HttpClientChannel client;
  42                 HttpServerChannel server;
  43                 string name = "http";
  44
  45                 #region Constructors
  46
  47                 public HttpChannel ()
  48                 {
  49                         client = new HttpClientChannel ();
  50                         server = new HttpServerChannel ();
  51                 }
  52
  53                 public HttpChannel (int port)
  54                 {
  55                         client = new HttpClientChannel ();
  56                         server = new HttpServerChannel (port);
  57                 }
  58
  59                 public HttpChannel (IDictionary properties,
  60                         IClientChannelSinkProvider clientSinkProvider,
  61                         IServerChannelSinkProvider serverSinkProvider)
  62                 {
  63                         if (properties != null && properties.Contains ("name")) {
  64                                 this.name = (string)properties["name"];
  65                         }
  66
  67                         client = new HttpClientChannel (properties, clientSinkProvider);
  68                         server = new HttpServerChannel (properties, serverSinkProvider);
  69                 }
  70
  71                 #endregion
  72
  73                 #region BaseChannelWithProperties overrides
  74
  75                 public override object this[object key]
  76                 {
  77                         get { return Properties[key]; }
  78                         set { Properties[key] = value; }
  79                 }
  80
  81                 public override ICollection Keys
  82                 {
  83                         get { return Properties.Keys; }
  84                 }
  85
  86                 public override IDictionary Properties
  87                 {
  88                         get
  89                         {
  90                                 return new AggregateDictionary (new IDictionary[] {
  91                                         client.Properties,
  92                                         server.Properties
  93                                 });
  94                         }
  95                 }
  96
  97                 #endregion
  98
  99                 #region IChannel
 100
 101                 public string ChannelName
 102                 {
 103                         get { return name; }
 104                 }
 105
 106                 public int ChannelPriority
 107                 {
 108                         get { return server.ChannelPriority; }
 109                 }
 110
 111                 public string Parse (string url, out string objectURI)
 112                 {
 113                         return ParseInternal (url, out objectURI);
 114                 }
 115
 116                 internal static string ParseInternal (string url, out string objectURI)
 117                 {
 118                         if (url == null)
 119                                 throw new ArgumentNullException ("url");
 120
 121                         // format: "http://host:port/path/to/object"
 122                         objectURI = null;
 123
 124                         // url needs to be at least "http:" or "https:"
 125                         if (url.Length < 5 ||
 126                             (url[0] != 'H' && url[0] != 'h') ||
 127                             (url[1] != 'T' && url[1] != 't') ||
 128                             (url[2] != 'T' && url[2] != 't') ||
 129                             (url[3] != 'P' && url[3] != 'p'))
 130                                 return null;
 131
 132                         int protolen;
 133                         if (url[4] == 'S' || url[4] == 's') {
 134                                 if (url.Length < 6)
 135                                         return null;
 136
 137                                 protolen = 5;
 138                         } else {
 139                                 protolen = 4;
 140                         }
 141
 142                         if (url[protolen] != ':')
 143                                 return null;
 144
 145                         // "http:" and "https:" are acceptable inputs
 146                         if (url.Length == protolen + 1)
 147                                 return url;
 148
 149                         // protocol must be followed by "//"
 150                         if (url.Length < protolen + 3 || url[protolen + 1] != '/' || url[protolen + 2] != '/')
 151                                 return null;
 152
 153                         // "http://" and "https://" are acceptable inputs
 154                         if (url.Length == protolen + 3)
 155                                 return url;
 156
 157                         int slash = url.IndexOf ('/', protolen + 3);
 158                         if (slash == -1)
 159                                 return url;
 160
 161                         objectURI = url.Substring (slash);
 162
 163                         return url.Substring (0, slash);
 164                 }
 165
 166                 #endregion
 167
 168                 #region IChannelReceiver (: IChannel)
 169
 170                 public object ChannelData
 171                 {
 172                         get { return server.ChannelData; }
 173                 }
 174
 175                 public string[] GetUrlsForUri (string objectURI)
 176                 {
 177                         return server.GetUrlsForUri (objectURI);
 178                 }
 179
 180                 public void StartListening (object data)
 181                 {
 182                         server.StartListening (data);
 183                 }
 184
 185                 public void StopListening (object data)
 186                 {
 187                         server.StopListening (data);
 188                 }
 189
 190                 #endregion
 191
 192                 #region IChannelReceiverHook
 193
 194                 public void AddHookChannelUri (string channelUri)
 195                 {
 196                         server.AddHookChannelUri (channelUri);
 197                 }
 198
 199                 public string ChannelScheme
 200                 {
 201                         get { return server.ChannelScheme; }
 202                 }
 203
 204                 public IServerChannelSink ChannelSinkChain
 205                 {
 206                         get { return server.ChannelSinkChain; }
 207                 }
 208
 209                 public bool WantsToListen
 210                 {
 211                         get { return server.WantsToListen; }
 212                         set { server.WantsToListen = value; }
 213                 }
 214
 215                 #endregion
 216
 217                 #region IChannelSender (: IChannel)
 218
 219                 public IMessageSink CreateMessageSink (string url, object remoteChannelData, out string objectURI)
 220                 {
 221                         return client.CreateMessageSink (url, remoteChannelData, out objectURI);
 222                 }
 223
 224                 #endregion
 225
 226 #if NET_2_0
 227                 #region ISecurableChannel
 228
 229                 public bool IsSecured
 230                 {
 231                         get { return client.IsSecured; }
 232                         set { client.IsSecured = value; }
 233                 }
 234
 235                 #endregion
 236 #endif
 237         }
 238 }