mcs/class/System.ServiceModel/System.ServiceModel.Description/MetadataExchangeClient.cs

   1 //
   2 // MetadataExchangeClient.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //      Ankit Jain <jankit@novell.com>
   7 //
   8 // Copyright (C) 2005 Novell, Inc.  http://www.novell.com
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29 using System;
  30 using System.Collections.Generic;
  31 using System.Collections.ObjectModel;
  32 using System.ServiceModel;
  33 using System.ServiceModel.Channels;
  34 using System.ServiceModel.Description;
  35 using System.Web.Services.Description;
  36 using System.Web.Services.Discovery;
  37 using System.Web.Services.Protocols;
  38 using System.Xml;
  39 using System.Xml.Serialization;
  40 using System.IO;
  41 using System.Net;
  42 using System.Text;
  43
  44 using SMBinding = System.ServiceModel.Channels.Binding;
  45 using SMMessage = System.ServiceModel.Channels.Message;
  46
  47 namespace System.ServiceModel.Description
  48 {
  49         public class MetadataExchangeClient
  50         {
  51                 string scheme;
  52
  53                 EndpointAddress address;
  54                 SMBinding binding;
  55                 MetadataExchangeClientMode mode = MetadataExchangeClientMode.MetadataExchange;
  56                 TimeSpan? operation_timeout = null;
  57
  58                 // constructors
  59
  60                 [MonoTODO ("use empty configuration")]
  61                 public MetadataExchangeClient ()
  62                 {
  63                 }
  64
  65                 public MetadataExchangeClient (SMBinding mexBinding)
  66                 {
  67                         binding = mexBinding;
  68                 }
  69
  70                 public MetadataExchangeClient (EndpointAddress address)
  71                 {
  72                         this.address = address;
  73                 }
  74
  75                 public MetadataExchangeClient (string endpointConfigurationName)
  76                 {
  77                         throw new NotImplementedException ();
  78                 }
  79
  80                 [MonoTODO ("MetadataExchangeClientMode is not considered")]
  81                 public MetadataExchangeClient (Uri address, MetadataExchangeClientMode mode)
  82                 {
  83                         this.address = new EndpointAddress (address.AbsoluteUri);
  84                         this.mode = mode;
  85                 }
  86
  87                 [MonoTODO]
  88                 public ICredentials HttpCredentials { get; set; }
  89                 [MonoTODO]
  90                 public int MaximumResolvedReferences { get; set; }
  91
  92                 public TimeSpan OperationTimeout {
  93                         get {
  94                                 if (!this.operation_timeout.HasValue) {
  95                                         this.operation_timeout = DefaultCommunicationTimeouts.Instance.ReceiveTimeout;
  96                                 }
  97                                 return this.operation_timeout.Value;
  98                         }
  99                         set {
 100                                 this.operation_timeout = value;
 101                         }
 102                 }
 103
 104                 [MonoTODO]
 105                 public bool ResolveMetadataReferences { get; set; }
 106
 107                 public ClientCredentials SoapCredentials { get; set; }
 108
 109                 [MonoTODO ("use dialect and identifier (but how?)")]
 110                 protected internal virtual ChannelFactory<IMetadataExchange> GetChannelFactory (EndpointAddress metadataAddress, string dialect, string identifier)
 111                 {
 112                         if (metadataAddress == null)
 113                                 throw new ArgumentNullException ("metadataAddress");
 114
 115                         var se = new ServiceEndpoint (ContractDescription.GetContract (typeof (IMetadataExchange)), CreateBinding (metadataAddress), metadataAddress);
 116                         if (SoapCredentials != null) {
 117                                 se.Behaviors.RemoveAll<ClientCredentials> ();
 118                                 se.Behaviors.Add (SoapCredentials);
 119                         }
 120                         return new ChannelFactory<IMetadataExchange> (se);
 121                 }
 122
 123                 [MonoTODO]
 124                 protected internal virtual HttpWebRequest GetWebRequest (Uri location, string dialect, string identifier)
 125                 {
 126                         throw new NotImplementedException ();
 127                 }
 128
 129                 SMBinding CreateBinding (EndpointAddress address)
 130                 {
 131                         return address.Uri.Scheme == Uri.UriSchemeHttps ?
 132                                 MetadataExchangeBindings.CreateMexHttpsBinding () :
 133                                 MetadataExchangeBindings.CreateMexHttpBinding ();
 134                 }
 135
 136                 // sync methods
 137
 138                 public MetadataSet GetMetadata ()
 139                 {
 140                         return GetMetadata (address);
 141                 }
 142
 143                 public MetadataSet GetMetadata (EndpointAddress address)
 144                 {
 145                         //FIXME: default mode?
 146                         return GetMetadataInternal (address, mode);
 147                 }
 148
 149                 public MetadataSet GetMetadata (Uri address, MetadataExchangeClientMode mode)
 150                 {
 151                         return GetMetadataInternal (new EndpointAddress (address.AbsoluteUri), mode);
 152                 }
 153
 154                 internal MetadataSet GetMetadataInternal (EndpointAddress address, MetadataExchangeClientMode mode)
 155                 {
 156                         // FIXME: give dialect and identifier
 157                         var cf = GetChannelFactory (address, null, null);
 158                         cf.Open ();
 159                         var proxy = cf.CreateChannel ();
 160                         var asClientChannel = proxy as IClientChannel;
 161                         if (asClientChannel == null)
 162                                 throw new InvalidOperationException ("The channel factory must return an IClientChannel implementation");
 163                         asClientChannel.OperationTimeout = OperationTimeout;
 164                         asClientChannel.Open ();
 165
 166                         SMMessage msg = SMMessage.CreateMessage (
 167                                         MessageVersion.Soap12WSAddressing10,
 168                                         "http://schemas.xmlsoap.org/ws/2004/09/transfer/Get");
 169
 170                         msg.Headers.ReplyTo = new EndpointAddress (
 171                                         "http://www.w3.org/2005/08/addressing/anonymous");
 172                         //msg.Headers.From = new EndpointAddress ("http://localhost");
 173                         msg.Headers.To = address.Uri;
 174                         msg.Headers.MessageId = new UniqueId ();
 175
 176                         SMMessage ret;
 177                         try {
 178                                 ret = proxy.Get (msg);
 179                         } catch (Exception e) {
 180                                 throw new InvalidOperationException (
 181                                                 "Metadata contains a reference that cannot be resolved : " + address.Uri.AbsoluteUri, e);
 182                         }
 183
 184                         return MetadataSet.ReadFrom (ret.GetReaderAtBodyContents ());
 185                 }
 186
 187                 // async methods
 188
 189                 Func<Func<MetadataSet>,MetadataSet> getter;
 190
 191                 void PrepareGetter ()
 192                 {
 193                         if (getter == null)
 194                                 getter = new Func<Func<MetadataSet>,MetadataSet> (GetMetadata);
 195                 }
 196
 197                 public MetadataSet EndGetMetadata (IAsyncResult result)
 198                 {
 199                         return getter.EndInvoke (result);
 200                 }
 201
 202                 MetadataSet GetMetadata (Func<MetadataSet> func)
 203                 {
 204                         return func ();
 205                 }
 206
 207                 public IAsyncResult BeginGetMetadata (AsyncCallback callback, object asyncState)
 208                 {
 209                         PrepareGetter ();
 210                         return getter.BeginInvoke (() => GetMetadata (), callback, asyncState);
 211                 }
 212
 213                 public IAsyncResult BeginGetMetadata (EndpointAddress address, AsyncCallback callback, object asyncState)
 214                 {
 215                         PrepareGetter ();
 216                         return getter.BeginInvoke (() => GetMetadata (address), callback, asyncState);
 217                 }
 218
 219                 public IAsyncResult BeginGetMetadata (Uri address, MetadataExchangeClientMode mode, AsyncCallback callback, object asyncState)
 220                 {
 221                         PrepareGetter ();
 222                         return getter.BeginInvoke (() => GetMetadata (address, mode), callback, asyncState);
 223                 }
 224         }
 225
 226         interface IMetadataExchangeClient : IMetadataExchange, IClientChannel
 227         {
 228         }
 229 }