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如何在WCF中启用带有SSL wsHttpBinding的会话

[英]How to enable Session with SSL wsHttpBinding in WCF

我有一个WCF服务,启用了wsHttpBindings和SSL,但是我想启用WCF会话。

将SessionMode更改为required后

SessionMode:=SessionMode.Required

我收到的错误如下所述。

合同需要Session,但Binding'WSHttpBinding'不支持它,或者没有正确配置以支持它。

这是我的示例应用程序。

App.config中

  <?xml version="1.0" encoding="utf-8" ?>
    <configuration>

      <system.web>
        <compilation debug="true" />
      </system.web>
      <!-- When deploying the service library project, the content of the config file must be added to the host's 
      app.config file. System.Configuration does not support config files for libraries. -->
      <system.serviceModel>

        <serviceHostingEnvironment aspNetCompatibilityEnabled="true" />
        <client />
        <bindings>
          <wsHttpBinding>
            <binding name="NewBinding0" useDefaultWebProxy="false" allowCookies="true">
              <readerQuotas maxStringContentLength="10240" />
              <!--reliableSession enabled="true" /-->
              <security mode="Transport">
                <transport clientCredentialType="None" proxyCredentialType="None" >
                  <extendedProtectionPolicy policyEnforcement="Never" />
                </transport >
              </security>
            </binding>
          </wsHttpBinding>
        </bindings>
        <services>
          <service name="WcfServiceLib.TestService">
            <endpoint address="" binding="wsHttpBinding" bindingConfiguration="NewBinding0"
              contract="WcfServiceLib.ITestService">
              <identity>
                <servicePrincipalName value="Local Network" />
              </identity>
            </endpoint>
            <endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange" />
            <host>
              <baseAddresses>
                <add baseAddress="https://test/TestService.svc" />
              </baseAddresses>
            </host>
          </service>
        </services>

        <behaviors>
          <serviceBehaviors>
            <behavior>
              <!-- To avoid disclosing metadata information, 
              set the value below to false and remove the metadata endpoint above before deployment -->
              <serviceMetadata httpsGetEnabled="True"/>
              <!-- To receive exception details in faults for debugging purposes, 
              set the value below to true.  Set to false before deployment 
              to avoid disclosing exception information -->
              <serviceDebug includeExceptionDetailInFaults="False" />
            </behavior>
          </serviceBehaviors>
        </behaviors>
      </system.serviceModel>

    </configuration>

ITestService.vb

  <ServiceContract(SessionMode:=SessionMode.Required)>
    Public Interface ITestService

        <OperationContract(IsInitiating:=True, IsTerminating:=False)> _
        Function GetData(ByVal value As Integer) As String

    End Interface

TestService.vb

    <ServiceBehavior(InstanceContextMode:=InstanceContextMode.PerSession, _ 
    ReleaseServiceInstanceOnTransactionComplete:=False, _ 
    ConcurrencyMode:=ConcurrencyMode.Single)>
        Public Class TestService
            Implements ITestService

            Private _user As User

            <OperationBehavior(TransactionScopeRequired:=True)>
            Public Function GetData(ByVal value As Integer) As String _
 Implements ITestService.GetData

                If _user Is Nothing Then

                    _user = New User()
                    _user.userName = "User_" & value
                    _user.userPassword = "Pass_" & value

                    Return String.Format("You've entered: {0} , Username = {1} , Password = {2} ", _
                                         value, _user.userName, _user.userPassword)
                Else
                    Return String.Format("Username = {1} , Password = {2} ", _
                                    _user.userName, _user.userPassword)
                End If

            End Function

        End Class

我尝试了所有可能的解决方案,但是没有任何帮助。

一些建议是为了启用可靠的会话 ,但它不适用于ssl (如果只有你的自定义绑定),其他建议使用http而不是https ,但我想用我当前的配置启用Sessions,如果可能的话。

有没有办法实现这个目标?

任何形式的帮助都非常感谢。

如果您想要与wsHttpBinding“会话”,则必须使用可靠的消息传递或安全会话。 (来源: 如何使用wsHttpBidning和仅传输安全性启用WCF会话 )。

WSHttpBinding支持会话,但仅在启用安全性(SecureConversation)或可靠消息传递时才支持。 如果您正在使用传输安全性,则它不使用WS-SecureConversation,并且默认情况下WS-ReliableMessaging处于关闭状态。 因此,WSHttpBinding用于会话的两个协议不可用。 您需要使用邮件安全性或打开可靠的会话。 (来源: http//social.msdn.microsoft.com/Forums/en-US/wcf/thread/57b3453e-e7e8-4875-ba23-3be4fff080ea/ )。

我们在标准绑定中禁止使用RM而不是Https,因为保护RM会话的方法是使用安全会话而Https不提供会话。

我在这里找到了msdn blurb: http//msdn2.microsoft.com/en-us/library/ms733136.aspx模糊是“唯一的例外是使用HTTPS时。 SSL会话未绑定到可靠会话。 这会产生威胁,因为共享安全上下文(SSL会话)的会话不会相互保护; 根据应用程序的不同,这可能是也可能不是真正的威胁。“

但是,如果您确定没有威胁,则可以执行此操作。 通过自定义绑定有一个RM over HTTPS示例http://msdn2.microsoft.com/en-us/library/ms735116.aspx (来源: http//social.msdn.microsoft.com/forums/en-US/ wcf / thread / fb4e5e31-e9b0-4c24-856d-1c464bd0039c / )。

总结您的可能性,您可以:

1 - 保留wsHttpBinding,删除传输安全性并启用可靠的消息传递

  <wsHttpBinding>
    <binding name="bindingConfig">
      <reliableSession enabled="true" />
      <security mode="None"/>
    </binding>
  </wsHttpBinding>

但是你松开了SSL层,然后放弃了部分安全性。

2 - 保留wsHttpBinding,保持传输安全性并添加消息身份验证

  <wsHttpBinding>
    <binding name="bindingConfig">
      <security mode="TransportWithMessageCredential">
        <message clientCredentialType="UserName"/>
      </security>
    </binding>
  </wsHttpBinding>

您可以保留SSL安全层,但是您的客户端必须提供(任何形式的)凭据,即使您未在服务端验证它们,仍必须提供假的,因为WCF将拒绝任何未指定凭据的消息。

3 - 使用具有可靠消息传递和HTTPS传输的自定义绑定

  <customBinding>
    <binding name="bindingConfig">
      <reliableSession/>
      <httpsTransport/>
    </binding>
  </customBinding>

除了在MSDN中解释的威胁之外,我看不出任何不利因素,这取决于您的应用程序。

4 - 使用其他会话提供程序如果您的应用程序在IIS中被激活,则可以进行设置

<serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>

并依赖于

HttpContext.Current.Session

为你的州。

或者实现自己的cookie。

PS:请注意,对于所有这些WCF配置,我只测试了服务激活,而不是调用。

编辑:根据用户请求, wsHttpBindingTransportWithMessageCredential安全模式实现会话(我不太熟悉VB.NET所以请原谅我的语法):

服务代码段:

<ServiceContract(SessionMode:=SessionMode.Required)>
Public Interface IService1

    <OperationContract()> _
    Sub SetSessionValue(ByVal value As Integer)

    <OperationContract()> _
    Function GetSessionValue() As Nullable(Of Integer)

End Interface

<ServiceBehavior(InstanceContextMode:=InstanceContextMode.PerSession, 
    ConcurrencyMode:=ConcurrencyMode.Single)>
Public Class Service1
    Implements IService1

    Private _sessionValue As Nullable(Of Integer)

    Public Sub SetSessionValue(ByVal value As Integer) Implements IService1.SetSessionValue
        _sessionValue = value
    End Sub

    Public Function GetSessionValue() As Nullable(Of Integer) Implements IService1.GetSessionValue
        Return _sessionValue
    End Function
End Class

Public Class MyUserNamePasswordValidator
    Inherits System.IdentityModel.Selectors.UserNamePasswordValidator

    Public Overrides Sub Validate(userName As String, password As String)
        ' Credential validation logic
        Return ' Accept anything
    End Sub

End Class

服务配置代码段:

<system.serviceModel>
  <services>
    <service name="WcfService1.Service1" behaviorConfiguration="WcfService1.Service1Behavior">
      <endpoint address="" binding="wsHttpBinding" contract="WcfService1.IService1" bindingConfiguration="bindingConf"/>
      <endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange"/>
    </service>
  </services>
  <bindings>
    <wsHttpBinding>
      <binding name="bindingConf">
        <security mode="TransportWithMessageCredential">
          <message clientCredentialType="UserName"/>
        </security>
      </binding>
    </wsHttpBinding>
  </bindings>
  <behaviors>
    <serviceBehaviors>
      <behavior name="WcfService1.Service1Behavior">
        <serviceMetadata httpsGetEnabled="true"/>
        <serviceDebug includeExceptionDetailInFaults="false"/>
        <serviceCredentials>
          <userNameAuthentication 
            userNamePasswordValidationMode="Custom"
            customUserNamePasswordValidatorType="WcfService1.MyUserNamePasswordValidator, WcfService1"/>
        </serviceCredentials>
      </behavior>
    </serviceBehaviors>
  </behaviors>
</system.serviceModel>

客户端测试代码段:

Imports System.Threading.Tasks

Module Module1

    Sub Main()
        Parallel.For(0, 10, Sub(i) Test(i))
        Console.ReadLine()
    End Sub

    Sub Test(ByVal i As Integer)
        Dim client As ServiceReference1.Service1Client
        client = New ServiceReference1.Service1Client()
        client.ClientCredentials.UserName.UserName = "login"
        client.ClientCredentials.UserName.Password = "password"
        Console.WriteLine("Session N° {0} : Value set to {0}", i)
        client.SetSessionValue(i)
        Dim response As Nullable(Of Integer)
        response = client.GetSessionValue()
        Console.WriteLine("Session N° {0} : Value returned : {0}", response)
        client.Close()
    End Sub

End Module

默认情况下,WSHttpBinding仅允许安全会话。 它是WCF的概念,与Transport无关。 安全会话不是通过https的会话,而是具有相互身份验证的会话。 这是通过添加消息安全性来实现的。

根据您的服务,您应该应用此配置

 <bindings>
      <wsHttpBinding>
        <binding name="wsHttpBindingConfig">
          <security mode="TransportWithMessageCredential">
            <!-- configure transport & message security here if needed-->
          </security>
        </binding>
      </wsHttpBinding>
    </bindings>

在客户端,这是一个简单的单元测试

[TestMethod]
    public void TestSecuritySession()
    {
        //remove this is certificate is valid
        ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback((sender, certificate, chain, sslPolicyErrors) => { return true; });

        var binding = new WSHttpBinding();
        binding.Security = new WSHttpSecurity() { Mode = SecurityMode.TransportWithMessageCredential};
        ChannelFactory<ITestService> Factory = new ChannelFactory<ITestService>(binding, new EndpointAddress("https://localhost/TestService.svc"));

        Factory.Open();
        var channel = Factory.CreateChannel();

        //call service here

        (channel as IClientChannel).Close();

        Factory.Close();
    }

wsHttpBinding需要reliableSession来支持WCF会话,可靠的会话需要自定义绑定来支持ssl。 因此,就我所知,在ssl和wsHttpBinding上请求WCF会话似乎是不可能的。

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