mcs/class/System.ServiceModel.Web/System.ServiceModel.Activation/WebScriptServiceHostFactory.cs

   1 //
   2 // WebScriptServiceHostFactory.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto  <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2008,2009 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 using System;
  29 using System.Reflection;
  30 using System.ServiceModel;
  31 using System.ServiceModel.Description;
  32 using System.ServiceModel.Web;
  33 using System.Text;
  34
  35 namespace System.ServiceModel.Activation
  36 {
  37         public class WebScriptServiceHostFactory : ServiceHostFactory
  38         {
  39                 public WebScriptServiceHostFactory ()
  40                 {
  41                         ContractDescriptionGenerator.RegisterGetOperationContractAttributeExtender (WebAttributesOCEExtender);
  42                 }
  43
  44                 static bool WebAttributesOCEExtender (MethodBase method, object[] customAttributes, ref OperationContractAttribute oca)
  45                 {
  46                         int caLength = customAttributes == null ? 0 : customAttributes.Length;
  47                         if (method == null && caLength == 0)
  48                                 return false;
  49
  50                         if (caLength == 0) {
  51                                 customAttributes = method.GetCustomAttributes (false);
  52
  53                                 if (customAttributes.Length == 0)
  54                                         return false;
  55                         }
  56
  57                         bool foundWebAttribute = false;
  58                         foreach (object o in customAttributes) {
  59                                 if (o is WebInvokeAttribute || o is WebGetAttribute) {
  60                                         foundWebAttribute = true;
  61                                         break;
  62                                 }
  63                         }
  64
  65                         if (!foundWebAttribute)
  66                                 return false;
  67
  68                         // LAMESPEC: .NET allows for contract methods decorated only with
  69                         // Web{Get,Invoke}Attribute and _without_ the OperationContractAttribute.
  70                         if (oca == null)
  71                                 oca = new OperationContractAttribute ();
  72
  73                         return true;
  74                 }
  75
  76                 protected override ServiceHost CreateServiceHost (Type serviceType, Uri [] baseAddresses)
  77                 {
  78                         if (serviceType == null)
  79                                 throw new ArgumentNullException ("serviceType");
  80                         return new WebScriptServiceHost (serviceType, baseAddresses);
  81                 }
  82
  83                 class WebScriptServiceHost : ServiceHost
  84                 {
  85                         public WebScriptServiceHost (Type serviceType, params Uri [] baseAddresses)
  86                                 : base (serviceType, baseAddresses)
  87                         {
  88                                 if (serviceType == null)
  89                                         throw new ArgumentNullException ("serviceType");
  90                         }
  91
  92 #if false
  93                         protected override void ApplyConfiguration ()
  94                         {
  95                                 base.ApplyConfiguration ();
  96
  97                                 if (Description.Endpoints.Count > 1)
  98                                         throw new InvalidOperationException ("This service host factory does not allow custom endpoint configuration");
  99
 100                                 if (ServiceHostingEnvironment.AspNetCompatibilityEnabled) {
 101                                         foreach (Type iface in Description.ServiceType.GetInterfaces ())
 102                                                 if (iface.GetCustomAttributes (typeof (ServiceContractAttribute), true).Length > 0)
 103                                                         AddServiceEndpoint (iface, new WebHttpBinding (), new Uri (String.Empty, UriKind.Relative));
 104                                 }
 105                         }
 106 #endif
 107
 108                         protected override void OnOpening ()
 109                         {
 110                                 base.OnOpening ();
 111
 112                                 if (Description.Endpoints.Count == 0) {
 113                                         if (ImplementedContracts.Count > 1)
 114                                                 throw new InvalidOperationException ("WebScriptServiceHostFactory does not allow more than one service contract in the service type");
 115                                         foreach (var pair in ImplementedContracts) // actually one
 116                                                 AddServiceEndpoint (pair.Key, new WebHttpBinding (), new Uri (String.Empty, UriKind.Relative));
 117                                 }
 118
 119                                 foreach (ServiceEndpoint se in Description.Endpoints)
 120                                         if (se.Behaviors.Find<WebHttpBehavior> () == null)
 121                                                 se.Behaviors.Insert (0, new WebScriptEnablingBehavior ());
 122                         }
 123                 }
 124         }
 125 }