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
  57                 // constructors
  58
  59                 [MonoTODO ("use empty configuration")]
  60                 public MetadataExchangeClient ()
  61                 {
  62                 }
  63
  64                 public MetadataExchangeClient (SMBinding mexBinding)
  65                 {
  66                         binding = mexBinding;
  67                 }
  68
  69                 public MetadataExchangeClient (EndpointAddress address)
  70                 {
  71                         this.address = address;
  72                 }
  73
  74                 public MetadataExchangeClient (string endpointConfigurationName)
  75                 {
  76                         throw new NotImplementedException ();
  77                 }
  78
  79                 [MonoTODO ("MetadataExchangeClientMode is not considered")]
  80                 public MetadataExchangeClient (Uri address, MetadataExchangeClientMode mode)
  81                 {
  82                         this.address = new EndpointAddress (address.AbsoluteUri);
  83                         this.mode = mode;
  84                 }
  85
  86                 [MonoTODO]
  87                 public ICredentials HttpCredentials { get; set; }
  88                 [MonoTODO]
  89                 public int MaximumResolvedReferences { get; set; }
  90
  91                 public TimeSpan OperationTimeout { get; set; }
  92
  93                 [MonoTODO]
  94                 public bool ResolveMetadataReferences { get; set; }
  95
  96                 public ClientCredentials SoapCredentials { get; set; }
  97
  98                 [MonoTODO ("use dialect and identifier (but how?)")]
  99                 protected internal virtual ChannelFactory<IMetadataExchange> GetChannelFactory (EndpointAddress metadataAddress, string dialect, string identifier)
 100                 {
 101                         var se = new ServiceEndpoint (ContractDescription.GetContract (typeof (IMetadataExchange)), CreateBinding (metadataAddress), metadataAddress);
 102                         if (SoapCredentials != null) {
 103                                 se.Behaviors.RemoveAll<ClientCredentials> ();
 104                                 se.Behaviors.Add (SoapCredentials);
 105                         }
 106                         return new ChannelFactory<IMetadataExchange> (se);
 107                 }
 108
 109                 [MonoTODO]
 110                 protected internal virtual HttpWebRequest GetWebRequest (Uri location, string dialect, string identifier)
 111                 {
 112                         throw new NotImplementedException ();
 113                 }
 114
 115                 SMBinding CreateBinding (EndpointAddress address)
 116                 {
 117                         return address.Uri.Scheme == Uri.UriSchemeHttps ?
 118                                 MetadataExchangeBindings.CreateMexHttpsBinding () :
 119                                 MetadataExchangeBindings.CreateMexHttpBinding ();
 120                 }
 121
 122                 // sync methods
 123
 124                 public MetadataSet GetMetadata ()
 125                 {
 126                         return GetMetadata (address);
 127                 }
 128
 129                 public MetadataSet GetMetadata (EndpointAddress address)
 130                 {
 131                         //FIXME: default mode?
 132                         return GetMetadataInternal (address, mode);
 133                 }
 134
 135                 public MetadataSet GetMetadata (Uri address, MetadataExchangeClientMode mode)
 136                 {
 137                         return GetMetadataInternal (new EndpointAddress (address.AbsoluteUri), mode);
 138                 }
 139
 140                 internal MetadataSet GetMetadataInternal (EndpointAddress address, MetadataExchangeClientMode mode)
 141                 {
 142                         // FIXME: give dialect and identifier
 143                         var cf = GetChannelFactory (address, null, null);
 144                         cf.Open ();
 145                         var proxy = cf.CreateChannel ();
 146                         var asClientChannel = proxy as IClientChannel;
 147                         if (asClientChannel == null)
 148                                 throw new InvalidOperationException ("The channel factory must return an IClientChannel implementation");
 149                         asClientChannel.OperationTimeout = OperationTimeout;
 150                         asClientChannel.Open ();
 151
 152                         SMMessage msg = SMMessage.CreateMessage (
 153                                         MessageVersion.Soap12WSAddressing10,
 154                                         "http://schemas.xmlsoap.org/ws/2004/09/transfer/Get");
 155
 156                         msg.Headers.ReplyTo = new EndpointAddress (
 157                                         "http://www.w3.org/2005/08/addressing/anonymous");
 158                         //msg.Headers.From = new EndpointAddress ("http://localhost");
 159                         msg.Headers.To = address.Uri;
 160                         msg.Headers.MessageId = new UniqueId ();
 161
 162                         SMMessage ret;
 163                         try {
 164                                 ret = proxy.Get (msg);
 165                         } catch (Exception e) {
 166                                 throw new InvalidOperationException (
 167                                                 "Metadata contains a reference that cannot be resolved : " + address.Uri.AbsoluteUri, e);
 168                         }
 169
 170                         return MetadataSet.ReadFrom (ret.GetReaderAtBodyContents ());
 171                 }
 172
 173                 // async methods
 174
 175                 Func<Func<MetadataSet>,MetadataSet> getter;
 176
 177                 void PrepareGetter ()
 178                 {
 179                         if (getter == null)
 180                                 getter = new Func<Func<MetadataSet>,MetadataSet> (GetMetadata);
 181                 }
 182
 183                 public MetadataSet EndGetMetadata (IAsyncResult result)
 184                 {
 185                         return getter.EndInvoke (result);
 186                 }
 187
 188                 MetadataSet GetMetadata (Func<MetadataSet> func)
 189                 {
 190                         return func ();
 191                 }
 192
 193                 public IAsyncResult BeginGetMetadata (AsyncCallback callback, object asyncState)
 194                 {
 195                         PrepareGetter ();
 196                         return getter.BeginInvoke (() => GetMetadata (), callback, asyncState);
 197                 }
 198
 199                 public IAsyncResult BeginGetMetadata (EndpointAddress address, AsyncCallback callback, object asyncState)
 200                 {
 201                         PrepareGetter ();
 202                         return getter.BeginInvoke (() => GetMetadata (address), callback, asyncState);
 203                 }
 204
 205                 public IAsyncResult BeginGetMetadata (Uri address, MetadataExchangeClientMode mode, AsyncCallback callback, object asyncState)
 206                 {
 207                         PrepareGetter ();
 208                         return getter.BeginInvoke (() => GetMetadata (address, mode), callback, asyncState);
 209                 }
 210         }
 211
 212         interface IMetadataExchangeClient : IMetadataExchange, IClientChannel
 213         {
 214         }
 215 }