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//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
namespace System.ServiceModel.Channels
{
using System.Collections.Generic;
using System.ServiceModel.Description;
using System.Xml;
using System.Xml.Schema;
using System.Web.Services.Description;
public class MessageEncodingBindingElementImporter : IWsdlImportExtension, IPolicyImportExtension
{
void IWsdlImportExtension.BeforeImport(ServiceDescriptionCollection wsdlDocuments, XmlSchemaSet xmlSchemas, ICollection<XmlElement> policy)
{
}
void IWsdlImportExtension.ImportContract(WsdlImporter importer, WsdlContractConversionContext context) { }
void IWsdlImportExtension.ImportEndpoint(WsdlImporter importer, WsdlEndpointConversionContext context)
{
if (context == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context");
}
#pragma warning suppress 56506 // [....], these properties cannot be null in this context
if (context.Endpoint.Binding == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context.Endpoint.Binding");
}
BindingElementCollection bindingElements = GetBindingElements(context);
MessageEncodingBindingElement messageEncodingBindingElement = bindingElements.Find<MessageEncodingBindingElement>();
TextMessageEncodingBindingElement textEncodingBindingElement = messageEncodingBindingElement as TextMessageEncodingBindingElement;
if (messageEncodingBindingElement != null)
{
Type elementType = messageEncodingBindingElement.GetType();
if (elementType != typeof(TextMessageEncodingBindingElement)
&& elementType != typeof(BinaryMessageEncodingBindingElement)
&& elementType != typeof(MtomMessageEncodingBindingElement))
return;
}
EnsureMessageEncoding(context, messageEncodingBindingElement);
foreach (OperationBinding wsdlOperationBinding in context.WsdlBinding.Operations)
{
OperationDescription operation = context.GetOperationDescription(wsdlOperationBinding);
for (int i = 0; i < operation.Messages.Count; i++)
{
MessageDescription message = operation.Messages[i];
MessageBinding wsdlMessageBinding = context.GetMessageBinding(message);
ImportMessageSoapAction(context.ContractConversionContext, message, wsdlMessageBinding, i != 0 /*isResponse*/);
}
foreach (FaultDescription fault in operation.Faults)
{
FaultBinding wsdlFaultBinding = context.GetFaultBinding(fault);
if (wsdlFaultBinding != null)
{
ImportFaultSoapAction(context.ContractConversionContext, fault, wsdlFaultBinding);
}
}
}
}
static void ImportFaultSoapAction(WsdlContractConversionContext contractContext, FaultDescription fault, FaultBinding wsdlFaultBinding)
{
string soapAction = SoapHelper.ReadSoapAction(wsdlFaultBinding.OperationBinding);
if (contractContext != null)
{
OperationFault wsdlOperationFault = contractContext.GetOperationFault(fault);
string wsaAction = WsdlImporter.WSAddressingHelper.FindWsaActionAttribute(wsdlOperationFault);
if (wsaAction == null && soapAction != null)
fault.Action = soapAction;
//
}
else
{
//
}
}
static void ImportMessageSoapAction(WsdlContractConversionContext contractContext, MessageDescription message, MessageBinding wsdlMessageBinding, bool isResponse)
{
string soapAction = SoapHelper.ReadSoapAction(wsdlMessageBinding.OperationBinding);
if (contractContext != null)
{
OperationMessage wsdlOperationMessage = contractContext.GetOperationMessage(message);
string wsaAction = WsdlImporter.WSAddressingHelper.FindWsaActionAttribute(wsdlOperationMessage);
if (wsaAction == null && soapAction != null)
{
if (isResponse)
{
message.Action = "*";
}
else
{
message.Action = soapAction;
}
}
//
}
else
{
//
}
}
static void EnsureMessageEncoding(WsdlEndpointConversionContext context, MessageEncodingBindingElement encodingBindingElement)
{
EnvelopeVersion soapVersion = SoapHelper.GetSoapVersion(context.WsdlBinding);
AddressingVersion addressingVersion;
if (encodingBindingElement == null)
{
encodingBindingElement = new TextMessageEncodingBindingElement();
ConvertToCustomBinding(context).Elements.Add(encodingBindingElement);
addressingVersion = AddressingVersion.None;
}
else
{
if (soapVersion == EnvelopeVersion.None)
addressingVersion = AddressingVersion.None;
else
addressingVersion = encodingBindingElement.MessageVersion.Addressing;
}
MessageVersion newMessageVersion = MessageVersion.CreateVersion(soapVersion, addressingVersion);
if (!encodingBindingElement.MessageVersion.IsMatch(newMessageVersion))
{
ConvertToCustomBinding(context).Elements.Find<MessageEncodingBindingElement>().MessageVersion
= MessageVersion.CreateVersion(soapVersion, addressingVersion);
}
}
static BindingElementCollection GetBindingElements(WsdlEndpointConversionContext context)
{
Binding binding = context.Endpoint.Binding;
BindingElementCollection elements = binding is CustomBinding ? ((CustomBinding)binding).Elements : binding.CreateBindingElements();
return elements;
}
static CustomBinding ConvertToCustomBinding(WsdlEndpointConversionContext context)
{
CustomBinding customBinding = context.Endpoint.Binding as CustomBinding;
if (customBinding == null)
{
customBinding = new CustomBinding(context.Endpoint.Binding);
context.Endpoint.Binding = customBinding;
}
return customBinding;
}
void IPolicyImportExtension.ImportPolicy(MetadataImporter importer, PolicyConversionContext context)
{
if (importer == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("importer");
}
if (context == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context");
}
ImportPolicyInternal(context);
}
void ImportPolicyInternal(PolicyConversionContext context)
{
ICollection<XmlElement> assertions = context.GetBindingAssertions();
XmlElement encodingAssertion;
MessageEncodingBindingElement encodingBindingElement;
encodingBindingElement = CreateEncodingBindingElement(context.GetBindingAssertions(), out encodingAssertion);
AddressingVersion addressingVersion = WsdlImporter.WSAddressingHelper.FindAddressingVersion(context);
ApplyAddressingVersion(encodingBindingElement, addressingVersion);
#pragma warning suppress 56506
context.BindingElements.Add(encodingBindingElement);
}
static void ApplyAddressingVersion(MessageEncodingBindingElement encodingBindingElement, AddressingVersion addressingVersion)
{
EnvelopeVersion defaultEnvelopeVersion = encodingBindingElement.MessageVersion.Envelope;
if (defaultEnvelopeVersion == EnvelopeVersion.None
&& addressingVersion != AddressingVersion.None)
{
// The default envelope version is None which incompatible with the
// addressing version.
// We replace it with soap12. This will be updated at wsdl import time if necessary.
encodingBindingElement.MessageVersion = MessageVersion.CreateVersion(EnvelopeVersion.Soap12, addressingVersion);
}
else
{
encodingBindingElement.MessageVersion = MessageVersion.CreateVersion(defaultEnvelopeVersion, addressingVersion);
}
}
MessageEncodingBindingElement CreateEncodingBindingElement(ICollection<XmlElement> assertions, out XmlElement encodingAssertion)
{
encodingAssertion = null;
foreach (XmlElement assertion in assertions)
{
switch (assertion.NamespaceURI)
{
case MessageEncodingPolicyConstants.BinaryEncodingNamespace:
if (assertion.LocalName == MessageEncodingPolicyConstants.BinaryEncodingName)
{
encodingAssertion = assertion;
assertions.Remove(encodingAssertion);
return new BinaryMessageEncodingBindingElement();
}
break;
case MessageEncodingPolicyConstants.OptimizedMimeSerializationNamespace:
if (assertion.LocalName == MessageEncodingPolicyConstants.MtomEncodingName)
{
encodingAssertion = assertion;
assertions.Remove(encodingAssertion);
return new MtomMessageEncodingBindingElement();
}
break;
}
}
return new TextMessageEncodingBindingElement();
}
}
static class MessageEncodingPolicyConstants
{
public const string BinaryEncodingName = "BinaryEncoding";
public const string BinaryEncodingNamespace = "http://schemas.microsoft.com/ws/06/2004/mspolicy/netbinary1";
public const string BinaryEncodingPrefix = "msb";
public const string OptimizedMimeSerializationNamespace = "http://schemas.xmlsoap.org/ws/2004/09/policy/optimizedmimeserialization";
public const string OptimizedMimeSerializationPrefix = "wsoma";
public const string MtomEncodingName = "OptimizedMimeSerialization";
}
}
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