Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web.Extensions/Compilation/WCFModel/HttpBindingExtension.cs

@@ -0,0 +1,74 @@
+#region Copyright (c) Microsoft Corporation
+/// <copyright company='Microsoft Corporation'>
+///    Copyright (c) Microsoft Corporation. All Rights Reserved.
+///    Information Contained Herein is Proprietary and Confidential.
+/// </copyright>
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.Security;
+using System.Security.Permissions;
+using System.ServiceModel.Description;
+using System.Xml;
+using System.Xml.Schema;
+using WsdlNS = System.Web.Services.Description;
+
+#if WEB_EXTENSIONS_CODE
+namespace System.Web.Compilation.WCFModel
+#else
+namespace Microsoft.VSDesigner.WCFModel
+#endif
+{
+    /// <summary>
+    /// Wsdl import extension to remove HttpGet and HttpPost bindings for ASMX services.
+    /// See detail in dev10 792007
+    /// </summary>
+    [SecurityCritical]
+    [PermissionSet(SecurityAction.InheritanceDemand, Name = "FullTrust")]
+    internal class HttpBindingExtension : IWsdlImportExtension
+    {
+        readonly HashSet<ContractDescription> httpBindingContracts = new HashSet<ContractDescription>();
+
+        static bool ContainsHttpBindingExtension(WsdlNS.Binding wsdlBinding)
+        {
+            //avoiding using wsdlBinding.Extensions.Find(typeof(WsdlNS.HttpBinding)) so the extension won't be marked as handled
+            foreach (object extension in wsdlBinding.Extensions)
+            {
+                if (extension is WsdlNS.HttpBinding)
+                {
+                    string httpVerb = ((WsdlNS.HttpBinding)extension).Verb;
+                    if (httpVerb.Equals("GET", StringComparison.OrdinalIgnoreCase) || httpVerb.Equals("POST", StringComparison.OrdinalIgnoreCase))
+                    {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+
+        public bool IsHttpBindingContract(ContractDescription contract)
+        {
+            return contract != null && httpBindingContracts.Contains(contract);
+        }
+
+        [SecuritySafeCritical]
+        void IWsdlImportExtension.BeforeImport(WsdlNS.ServiceDescriptionCollection wsdlDocuments, XmlSchemaSet xmlSchemas, ICollection<XmlElement> policy)
+        {
+        }
+
+        [SecuritySafeCritical]
+        void IWsdlImportExtension.ImportContract(WsdlImporter importer, WsdlContractConversionContext context)
+        {
+        }
+
+        [SecuritySafeCritical]
+        void IWsdlImportExtension.ImportEndpoint(WsdlImporter importer, WsdlEndpointConversionContext context)
+        {
+            if (context != null && context.WsdlBinding != null && ContainsHttpBindingExtension(context.WsdlBinding))
+            {
+                httpBindingContracts.Add(context.ContractConversionContext.Contract);
+            }
+        }
+    }
+}