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