流MTOM附件在WCF和证书认证

Question

我正在寻找一个明确的答案，我想做的事情是否得到支持。

基本上，我使用WCF来传输大型MTOM附件(200 Mb)，这工作得很好。该服务的安全要求是使用HTTPS和基于证书的身份验证。我可以通过HTTPS运行服务而没有任何问题，但是一旦我将IIS设置为"接受客户端证书"或"需要客户端证书"(代码没有变化)，就会抛出以下错误(但只有当附件超过大约80 Mb左右时):

The socket connection was aborted. 
This could be caused by an error processing your message or a receive timeout being exceeded by the remote host, or an underlying network resource issue. 
Local socket timeout was '00:30:00'.

我发现了一些资源，抱歉现在找不到，这表明失败可能与传入消息无法进行数字签名或由于消息内容的流性质而进行验证有关。我认为服务必须对整个消息内容进行散列以验证证书，但这无法实现，因为当验证试图发生时，部分消息正在传输中。

我已经设置了消息契约，使正文是一个单独的流元素，其他元素包含在标题中:

   <MessageContract()>
Public Class StreamAttachmentRequest
    <MessageHeader(MustUnderstand:=True)>
    Public Property AttachmentName As String
    <MessageBodyMember(Order:=1)>
    Public Property Attachment As Stream
End Class

服务配置如下:

<system.serviceModel>
<!-- BINDING -->
<bindings>
<basicHttpBinding>
  <binding name="TestCaseBasicBinding"
           messageEncoding="Mtom"
           transferMode="StreamedRequest"
           maxReceivedMessageSize="2147483647"
           closeTimeout="00:30:00"
           openTimeout="00:30:00"
           receiveTimeout="00:30:00"
           sendTimeout="00:30:00">
    <security mode="Transport">
      <transport clientCredentialType="None"></transport>
    </security>
    <readerQuotas maxDepth="32"
                      maxStringContentLength="8192"
                      maxArrayLength="16384"
                      maxBytesPerRead="4096"
                      maxNameTableCharCount="16384" />
  </binding>
</basicHttpBinding>
</bindings>
<!-- BEHAVIORS -->
<behaviors>
  <serviceBehaviors>
    <!-- TEST CASE SECURE BEHAVIOR -->
    <behavior name="TestCaseSecureBehavior">
      <serviceMetadata httpsGetEnabled="true" httpGetEnabled="false" />
      <serviceDebug includeExceptionDetailInFaults="true"/>
      <serviceCredentials>
        <serviceCertificate
            storeLocation="LocalMachine"
            storeName="My"
            findValue="DistinguishedNameOfCert"
            x509FindType="FindBySubjectDistinguishedName" />
        <clientCertificate>
          <authentication certificateValidationMode="ChainTrust"/>
        </clientCertificate>
      </serviceCredentials>
    </behavior>
  </serviceBehaviors>
</behaviors>
<!-- SERVICES -->
<services>
  <service name="StreamingMutualAuthTestCase.Web.Service.TestCaseServiceImplementation" 
           behaviorConfiguration="TestCaseSecureBehavior">
    <!-- SERVICE -->
    <endpoint address=""
              binding="basicHttpBinding"
              bindingConfiguration="TestCaseBasicBinding"
              contract="StreamingMutualAuthTestCase.Web.Service.ITestCaseService" />
    <endpoint contract="IMetadataExchange" binding="mexHttpsBinding" address="mex" />
  </service>
</services>    
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />

客户端配置如下:

 <system.serviceModel>
    <bindings>
        <basicHttpBinding>
            <binding name="BasicHttpBinding_ITestCaseService" closeTimeout="00:30:00"
                openTimeout="00:30:00" receiveTimeout="00:30:00" sendTimeout="00:30:00"
                maxReceivedMessageSize="2147483647" messageEncoding="Mtom"
                transferMode="Streamed">
                <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
                    maxBytesPerRead="4096" maxNameTableCharCount="16384" />
                <security mode="Transport">
                    <transport clientCredentialType="Certificate" realm="" />
                </security>
            </binding>
        </basicHttpBinding>
    </bindings>
  <!-- BEHAVIORS -->
  <behaviors>
    <endpointBehaviors>
      <behavior name="SecureClientBehavior">
        <clientCredentials>
          <clientCertificate
            storeLocation="LocalMachine"
            storeName="My"
            findValue="DistinguishedNameOfCert"
            x509FindType="FindBySubjectDistinguishedName"/>
          <serviceCertificate>
            <authentication certificateValidationMode="ChainTrust"/>
          </serviceCertificate>
        </clientCredentials>
      </behavior>
    </endpointBehaviors>
  </behaviors>
    <client>
        <endpoint address="https://test7/TestCaseService/TestCaseService.svc" 
                  binding="basicHttpBinding" 
                  bindingConfiguration="BasicHttpBinding_ITestCaseService"
                  contract="TestCaseService.ITestCaseService" 
                  name="BasicHttpBinding_ITestCaseService" 
                  behaviorConfiguration="SecureClientBehavior"/>
    </client>
</system.serviceModel>

再一次，这将工作得很好，直到我设置IIS客户端证书接受或要求。

还有，IIS日志中有一个413错误…

2011-08-18 15:00:06 W3SVC1 10.39.8.111 POST /TestCaseService/TestCaseService.svc - 443 - 10.75.13.81 - - - test7 413 0 0

我已经在我的文件上传服务之上设计了一个身份验证服务来解决这个问题;但是我真的很想知道我想做的事情是否"可行"。

Thanks a ton - Patrick

Answer 1

如果你想在IIS中打开客户端证书，你必须为你的服务(和客户端)做同样的事情:

<security mode="Transport">
  <transport clientCredentialType="Certificate" />
</security>

您的客户端必须向代理提供证书:

yourProxy.ClientCredentials.ClientCertificate.SetCertificate(...);

您的服务器必须信任这些证书，因此客户端证书必须由服务器信任的证书颁发机构颁发，或者必须安装到LocalMachine受信任的人直接存储在服务器上。

WCF端点不支持"接受客户端证书"-您必须要么使用客户端证书，要么不使用。