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此問題似乎已被多次詢問，但我無法使其正常工作。WCF消息Intersecpter配置問題
首先，我現在在使用VS 2012的Windows 7和Windows 8上都嘗試了這一點，並且具有完全相同的問題。
我正在嘗試編寫一個接收和處理SOAP頭消息的WCF服務，並且在大量搜索後發現我應該使用消息攔截器來讀取和處理SOAP頭。
所以我在我的本地機器上創建了一個新的網站，並將其命名爲DemoMessageInspector。在這個解決方案，我已經添加了以下類：
HmacVerificationBehavior
Imports System.ServiceModel.Description
Public Class HmacVerificationBehavior
Implements IEndpointBehavior
#Region "IEndpointBehavior Members"
Public Sub AddBindingParameters(endpoint As ServiceEndpoint, bindingParameters As System.ServiceModel.Channels.BindingParameterCollection) Implements IEndpointBehavior.AddBindingParameters
End Sub
Public Sub ApplyClientBehavior(endpoint As ServiceEndpoint, clientRuntime As System.ServiceModel.Dispatcher.ClientRuntime) Implements IEndpointBehavior.ApplyClientBehavior
End Sub
Public Sub ApplyDispatchBehavior(endpoint As ServiceEndpoint, endpointDispatcher As System.ServiceModel.Dispatcher.EndpointDispatcher) Implements IEndpointBehavior.ApplyDispatchBehavior
Dim inspector As New HmacVerificationInspector()
endpointDispatcher.DispatchRuntime.MessageInspectors.Add(inspector)
End Sub
Public Sub Validate(endpoint As ServiceEndpoint) Implements IEndpointBehavior.Validate
End Sub
#End Region
End Class
HmacVerificationConfigurationSection
Imports System.ServiceModel.Configuration
Imports System.ServiceModel.Description
Namespace NamespaceHere
Public Class HmacVerificationConfigurationSection
Inherits BehaviorExtensionElement
Implements IServiceBehavior
#Region "IServiceBehavior Members"
Public Sub AddBindingParameters(serviceDescription As ServiceDescription, serviceHostBase As System.ServiceModel.ServiceHostBase, endpoints As System.Collections.ObjectModel.Collection(Of ServiceEndpoint), bindingParameters As System.ServiceModel.Channels.BindingParameterCollection) Implements IServiceBehavior.AddBindingParameters
End Sub
Public Sub ApplyDispatchBehavior(serviceDescription As ServiceDescription, serviceHostBase As System.ServiceModel.ServiceHostBase) Implements IServiceBehavior.ApplyDispatchBehavior
End Sub
Public Sub Validate(serviceDescription As ServiceDescription, serviceHostBase As System.ServiceModel.ServiceHostBase) Implements IServiceBehavior.Validate
End Sub
#End Region
Public Overrides ReadOnly Property BehaviorType() As Type
Get
Return GetType(HmacVerificationBehavior)
End Get
End Property
Protected Overrides Function CreateBehavior() As Object
Return New HmacVerificationBehavior()
End Function
End Class
End Namespace
HmacVerificationInspector
Imports System.ServiceModel.Dispatcher
Imports System.ServiceModel.Channels
Public Class HmacVerificationInspector
Implements IDispatchMessageInspector
#Region "IDispatchMessageInspector Members"
Public Function AfterReceiveRequest(ByRef request As System.ServiceModel.Channels.Message, channel As System.ServiceModel.IClientChannel, instanceContext As System.ServiceModel.InstanceContext) As Object
Dim buffer As MessageBuffer = request.CreateBufferedCopy(Int32.MaxValue)
request = buffer.CreateMessage()
Dim dupeRequest As Message = buffer.CreateMessage()
ValidateHmac(dupeRequest)
buffer.Close()
Return Nothing
End Function
Public Sub BeforeSendReply(ByRef reply As System.ServiceModel.Channels.Message, correlationState As Object)
End Sub
#End Region
Public Function AfterReceiveRequest1(ByRef request As Message, channel As ServiceModel.IClientChannel, instanceContext As ServiceModel.InstanceContext) As Object Implements IDispatchMessageInspector.AfterReceiveRequest
End Function
Public Sub BeforeSendReply1(ByRef reply As Message, correlationState As Object) Implements IDispatchMessageInspector.BeforeSendReply
End Sub
End Class
IService
Imports System.ServiceModel
' NOTE: You can use the "Rename" command on the context menu to change the interface name "IService" in both code and config file together.'
<ServiceContract()>
Public Interface IService
<OperationContract()>
Sub DoWork()
<OperationContract()>
Function DoSomething(ByVal _str As String) As String
End Interface
和服務
Public Class Service
Implements IService
Public Sub DoWork() Implements IService.DoWork
End Sub
Public Function DoSomething(ByVal _str As String) As String Implements IService.DoSomething
Return "Message [" & _str & "]"
End Function
End
在Web.config文件如下：
<configuration>
<system.web>
<compilation debug="true" strict="false" explicit="true" targetFramework="4.5"/>
<httpRuntime targetFramework="4.5"/>
</system.web>
<system.serviceModel>
<extensions>
<behaviorExtensions>
<add name="hmacVerification"
type="NamespaceHere.HmacVerificationConfigurationSection, NamespaceHere, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"/>
</behaviorExtensions>
</extensions>
<services>
<service name="MySecureService">
<endpoint address="" binding="webHttpBinding" contract="IMySecureService" behaviorConfiguration="web"/>
</service>
</services>
<behaviors>
<endpointBehaviors>
<behavior name="web">
<webHttp automaticFormatSelectionEnabled="true"/>
<hmacVerification /> *********COMMENT OUT**************
</behavior>
</endpointBehaviors>
<serviceBehaviors>
<behavior name="">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" aspNetCompatibilityEnabled="true"/>
</system.serviceModel>
</configuration>
所以，我們有例子代碼工程完美如果該行在Web.C中被註釋掉onfig。發生以下情況：
Server Error in '/DemoMessageInspector' Application.
--------------------------------------------------------------------------------
Configuration Error
Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.
Parser Error Message: The type 'NamespaceHere.HmacVerificationConfigurationSection, NamespaceHere, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' registered for extension 'hmacVerification' could not be loaded.
Source Error:
Line 25: <behavior name="web">
Line 26: <webHttp automaticFormatSelectionEnabled="true"/>
Line 27: <hmacVerification />
Line 28: </behavior>
Line 29: </endpointBehaviors>
Source File: C:\inetpub\wwwroot\DemoMessageInspector\web.config Line: 27
--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18044
所以，問題基本上應該如何配置？
或者，也許問題是，這是從WCF端點讀取SOAP頭完成一個簡單的任務是正確的方法嗎？
謝謝你，我會考慮提供的鏈接。 – gilesrpa