mcs/class/System.Runtime.Remoting/System.Runtime.Remoting.Channels.Tcp/TcpChannel.cs

   1 //
   2 // System.Runtime.Remoting.Channels.Tcp.TcpChannel.cs
   3 //
   4 // Author: Rodrigo Moya (rodrigo@ximian.com)
   5 //         Lluis Sanchez Gual (lluis@ideary.com)
   6 //
   7 // 2002 (C) Copyright, Ximian, Inc.
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System.Collections;
  32 using System.Runtime.Remoting.Messaging;
  33 using System.Text.RegularExpressions;
  34
  35 namespace System.Runtime.Remoting.Channels.Tcp
  36 {
  37         public class TcpChannel : IChannelReceiver, IChannel, IChannelSender
  38         {
  39                 private TcpClientChannel _clientChannel;
  40                 private TcpServerChannel _serverChannel = null;
  41                 private string _name = "tcp";
  42                 private int _priority = 1;
  43
  44                 public TcpChannel ()
  45         {
  46                         Init (new Hashtable(), null, null);
  47                 }
  48
  49                 public TcpChannel (int port)
  50                 {
  51                         Hashtable ht = new Hashtable();
  52                         ht["port"] = port.ToString();
  53                         Init(ht, null, null);
  54                 }
  55
  56                 void Init (IDictionary properties, IClientChannelSinkProvider clientSink, IServerChannelSinkProvider serverSink)
  57                 {
  58                         _clientChannel = new TcpClientChannel (properties,clientSink);
  59
  60                         if(properties["port"] != null)
  61                                 _serverChannel = new TcpServerChannel(properties, serverSink);
  62
  63                         object val = properties ["name"];
  64                         if (val != null) _name = val as string;
  65
  66                         val = properties ["priority"];
  67                         if (val != null) _priority = Convert.ToInt32 (val);
  68                 }
  69
  70
  71                 public TcpChannel (IDictionary properties,
  72                                    IClientChannelSinkProvider clientSinkProvider,
  73                                    IServerChannelSinkProvider serverSinkProvider)
  74                 {
  75                         Init (properties, clientSinkProvider, serverSinkProvider);
  76                 }
  77
  78                 public IMessageSink CreateMessageSink(string url, object remoteChannelData, out string objectURI)
  79                 {
  80                         return _clientChannel.CreateMessageSink(url, remoteChannelData, out objectURI);
  81                 }
  82
  83                 public string ChannelName
  84                 {
  85                         get { return _name; }
  86                 }
  87
  88                 public int ChannelPriority
  89                 {
  90                         get { return _priority; }
  91                 }
  92
  93                 public void StartListening (object data)
  94                 {
  95                         if (_serverChannel != null) _serverChannel.StartListening (data);
  96                 }
  97
  98                 public void StopListening (object data)
  99                 {
 100                         if (_serverChannel != null) _serverChannel.StopListening(data);
 101                         TcpConnectionPool.Shutdown ();
 102                 }
 103
 104                 public string[] GetUrlsForUri (string uri)
 105                 {
 106                         if (_serverChannel != null) return _serverChannel.GetUrlsForUri(uri);
 107                         else return null;
 108                 }
 109
 110                 public object ChannelData
 111                 {
 112                         get
 113                         {
 114                                 if (_serverChannel != null) return _serverChannel.ChannelData;
 115                                 else return null;
 116                         }
 117                 }
 118
 119                 public string Parse (string url, out string objectURI)
 120                 {
 121                         return TcpChannel.ParseChannelUrl (url, out objectURI);
 122                 }
 123
 124                 internal static string ParseChannelUrl (string url, out string objectURI)
 125                 {
 126                         if (url == null) throw new ArgumentNullException ("url");
 127
 128                         int port;
 129
 130                         string host = ParseTcpURL (url, out objectURI, out port);
 131                         if (host != null)
 132                                 return "tcp://" + host + ":" + port;
 133                         else
 134                                 return null;
 135                 }
 136
 137                 internal static string ParseTcpURL (string url, out string objectURI, out int port)
 138                 {
 139                         // format: "tcp://host:port/path/to/object"
 140
 141                         objectURI = null;
 142                         port = 0;
 143
 144                         if (!url.StartsWith ("tcp://")) return null;
 145                         int colon = url.IndexOf (':', 6);
 146                         if (colon == -1) return null;
 147                         string host = url.Substring (6, colon - 6);
 148
 149                         int slash = url.IndexOf ('/', colon + 1);
 150                         if (slash == -1) slash = url.Length;
 151                         string port_str = url.Substring (colon + 1, slash - colon - 1);
 152
 153                         if (slash < url.Length)
 154                                 objectURI = url.Substring (slash + 1);
 155
 156                         try {
 157                                 port = Convert.ToInt32 (port_str);
 158                         } catch {
 159                                 return null;
 160                         }
 161
 162                         if (objectURI == string.Empty)
 163                                 objectURI = null;
 164
 165                         return host;
 166                 }
 167         }
 168 }