.NET Core ChannelFactory-将X509Certificate2设置为客户端证书

Question

我需要将客户端证书（例如，不是来自Windows证书存储区）设置到我的wcf通道，但是我总是会收到异常：

System.InvalidOperationException：“对象是只读的。”

这很奇怪，因为这些属性都有一个setter，但是如果我分配了X509Certificate2，则会崩溃。

堆栈跟踪

System.InvalidOperationException
  HResult=0x80131509
  Nachricht = Object is read-only.
  Quelle = System.Private.ServiceModel
  Stapelüberwachung:
   at System.ServiceModel.Security.X509CertificateRecipientClientCredential.ThrowIfImmutable()
   at System.ServiceModel.Security.X509CertificateRecipientClientCredential.set_DefaultCertificate(X509Certificate2 value)

码

var binding = new BasicHttpsBinding();
var endpoint = new EndpointAddress(new Uri("https://myservice.com"));
var channelFactory = new ChannelFactory<MyService>(binding, endpoint);
var serviceClient = channelFactory.CreateChannel();
binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Certificate;

var token = GetToken(); // Just an method that reads a pfx from disk
channelFactory.Credentials.
    ServiceCertificate.DefaultCertificate = token.Certificate; // throws exception
channelFactory.Credentials.
    ClientCertificate.Certificate = token.Certificate; // throws exception too

更新1

方法SetCertificate引发相同的System.InvalidOperationException: "Object is read-only." 例外。

using (X509Store store = new X509Store(StoreName.My, StoreLocation.CurrentUser)) 
{
    store.Open(OpenFlags.ReadWrite);
    var x509Certificate2Collection = store.Certificates.Find(X509FindType.FindByThumbprint, token.Certificate.Thumbprint, false);
    if(x509Certificate2Collection.Count == 0)
        store.Add(token.Certificate);
}

channelFactory.Credentials.ClientCertificate.SetCertificate(StoreLocation.CurrentUser, StoreName.My,X509FindType.FindByThumbprint, token.Certificate.Thumbprint);

更新2

X509CertificateRecipientClientCredential.cs的实现很有趣。

public X509Certificate2 DefaultCertificate
{
    get
    {
        return _defaultCertificate;
    }
    set
    {
        ThrowIfImmutable();
        _defaultCertificate = value;
    }
}

internal void MakeReadOnly()
{
    _isReadOnly = true;
    this.Authentication.MakeReadOnly();
    if (_sslCertificateAuthentication != null)
    {
        _sslCertificateAuthentication.MakeReadOnly();
    }
}

private void ThrowIfImmutable()
{
    if (_isReadOnly)
    {
        throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.Format(SR.ObjectIsReadOnly)));
    }
}

什么是调用internal void MakeReadOnly()并让我的生活困难。

Answer 1

在github上阅读ClientCredentials.cs时，我发现了方法MakeReadOnly() 。

channelFactory.CreateChannel()的调用使ClientCertificate实例成为只读实例，因此，在更改语句的顺序之后，它将起作用！

使用WCF进行ClientCertificate身份验证：

var binding = new BasicHttpsBinding();
var endpoint = new EndpointAddress(new Uri("https://myservice.com"));
var channelFactory = new ChannelFactory<MyService>(binding, endpoint);
// Must set before CreateChannel()
channelFactory.Credentials.
    ClientCertificate.Certificate = token.Certificate;

var serviceClient = channelFactory.CreateChannel();
binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Certificate;