1 //
2 // Author: Atsushi Enomoto <atsushi@ximian.com>
3 //
4 // Copyright (C) 2009 Novell, Inc (http://www.novell.com)
5 //
6 // Permission is hereby granted, free of charge, to any person obtaining
7 // a copy of this software and associated documentation files (the
8 // "Software"), to deal in the Software without restriction, including
9 // without limitation the rights to use, copy, modify, merge, publish,
10 // distribute, sublicense, and/or sell copies of the Software, and to
11 // permit persons to whom the Software is furnished to do so, subject to
12 // the following conditions:
13 //
14 // The above copyright notice and this permission notice shall be
15 // included in all copies or substantial portions of the Software.
16 //
17 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
21 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 //
25 using System;
26 using System.Collections.Generic;
27 using System.Collections.ObjectModel;
28 using System.Net.Sockets;
29 using System.ServiceModel;
30 using System.ServiceModel.Channels;
31 using System.ServiceModel.Description;
32 using System.ServiceModel.Dispatcher;
33 using System.ServiceModel.Discovery.Udp;
34 
35 namespace System.ServiceModel.Discovery
36 {
37 	public class UdpDiscoveryEndpoint : DiscoveryEndpoint
38 	{
39 		public static readonly Uri DefaultIPv4MulticastAddress = new Uri ("soap.udp://239.255.255.250:3702/");
40 		public static readonly Uri DefaultIPv6MulticastAddress = new Uri ("soap.udp://[FF02:0000:0000:0000:0000:0000:0000:000C]:3702/");
41 
42 		internal static Uri DefaultMulticastAddress {
43 			get { return Socket.SupportsIPv4 ? DefaultIPv4MulticastAddress : DefaultIPv6MulticastAddress; }
44 		}
45 
46 		// (1)->(2)
UdpDiscoveryEndpoint()47 		public UdpDiscoveryEndpoint ()
48 			: this (DiscoveryVersion.WSDiscovery11)
49 		{
50 		}
51 
52 		// (2)->(6)
UdpDiscoveryEndpoint(DiscoveryVersion discoveryVersion)53 		public UdpDiscoveryEndpoint (DiscoveryVersion discoveryVersion)
54 			: this (discoveryVersion, DefaultMulticastAddress)
55 		{
56 		}
57 
58 		// (3)->(4)
UdpDiscoveryEndpoint(string multicastAddress)59 		public UdpDiscoveryEndpoint (string multicastAddress)
60 			: this (new Uri (multicastAddress))
61 		{
62 		}
63 
64 		// (4)->(5)
UdpDiscoveryEndpoint(Uri multicastAddress)65 		public UdpDiscoveryEndpoint (Uri multicastAddress)
66 			: this (DiscoveryVersion.WSDiscovery11, multicastAddress)
67 		{
68 		}
69 
70 		// (5)->(6)
UdpDiscoveryEndpoint(DiscoveryVersion discoveryVersion, string multicastAddress)71 		public UdpDiscoveryEndpoint (DiscoveryVersion discoveryVersion, string multicastAddress)
72 			: this (discoveryVersion, new Uri (multicastAddress))
73 		{
74 		}
75 
76 		// (6), everything falls to here.
UdpDiscoveryEndpoint(DiscoveryVersion discoveryVersion, Uri multicastAddress)77 		public UdpDiscoveryEndpoint (DiscoveryVersion discoveryVersion, Uri multicastAddress)
78 			: base (discoveryVersion, ServiceDiscoveryMode.Adhoc, CreateBinding (discoveryVersion), new EndpointAddress (discoveryVersion.AdhocAddress))
79 		{
80 			ListenUri = multicastAddress;
81 			TransportSettings = new UdpTransportSettings ();
82 			MulticastAddress = multicastAddress;
83 			MaxResponseDelay = TimeSpan.FromMilliseconds (500);
84 			Behaviors.Add (new DiscoveryViaUriBehavior (discoveryVersion, multicastAddress));
85 		}
86 
CreateBinding(DiscoveryVersion discoveryVersion)87 		static Binding CreateBinding (DiscoveryVersion discoveryVersion)
88 		{
89 			var mbe = new TextMessageEncodingBindingElement () {MessageVersion = discoveryVersion.MessageVersion};
90 			var tbe = new UdpTransportBindingElement ();
91 			return new CustomBinding (mbe, tbe) {SendTimeout = TimeSpan.FromMinutes (1), ReceiveTimeout = TimeSpan.FromMinutes (10)};
92 		}
93 
94 		public Uri MulticastAddress { get; set; }
95 		public UdpTransportSettings TransportSettings { get; private set; }
96 	}
97 }
98