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几年前，我努力让我们的代码包含客户端证书。（请参阅Elasticsearch NEST HttpClientHandler Certificate上的最后一篇文章）。我试图在另一个项目中使用相同的代码，但它失败了：

"ExceptionMessage": "The request was aborted: Could not create SSL/TLS secure channel."

大多数建议都围绕设置 ServicePointManager.SecurityProtocol = Tls12; 我已经尝试了所有的组合。

我试图缩小范围并简单地添加

直接使用 HttpClientHandler

来自https://damienbod.com/2019/09/07/using-certificate-authentication-with-ihttpclientfactory-and-httpclient/的示例

private async Task<JsonDocument> GetApiDataUsingHttpClientHandler()
{
    var cert = new X509Certificate2(Path.Combine(_environment.ContentRootPath, "sts_dev_cert.pfx"), "1234");
    var handler = new HttpClientHandler();
    handler.ClientCertificates.Add(cert);
    var client = new HttpClient(handler);
     
    var request = new HttpRequestMessage()
    {
        RequestUri = new Uri("https://localhost:44379/api/values"),
        Method = HttpMethod.Get,
    };
    var response = await client.SendAsync(request);
    if (response.IsSuccessStatusCode)
    {
        var responseContent = await response.Content.ReadAsStringAsync();
        var data = JsonDocument.Parse(responseContent);
        return data;
    }
 
    throw new ApplicationException($"Status code: {response.StatusCode}, Error: {response.ReasonPhrase}");
}

这在一个方法中完成了整个事情（读取证书、附加到处理程序并发出请求）。如果我在独立项目中运行此代码，它工作正常。我正在尝试从 Service Fabric 中托管的 WebApi 运行它。调试时，可以看到证书已获取并正确添加到处理程序中。正如 Fiddler 所验证的那样，该调用永远不会从我的代码中消失（即从未发出过）。

我们正在另一个解决方案中的 Service Fabric 中执行此操作，并且一切正常。

还有其他东西可能会丢失吗？

谢谢！

PS添加完整的例外

{
    "Message": "An error has occurred.",
    "ExceptionMessage": "An error occurred while sending the request.",
    "ExceptionType": "System.Net.Http.HttpRequestException",
    "StackTrace": "   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Net.Http.HttpClient.<FinishSendAsyncBuffered>d__58.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Threading.Tasks.TaskHelpersExtensions.<CastToObject>d__3`1.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ExceptionFilterResult.<ExecuteAsync>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Web.Http.Controllers.ExceptionFilterResult.<ExecuteAsync>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__1.MoveNext()",
    "InnerException": {
        "Message": "An error has occurred.",
        "ExceptionMessage": "The request was aborted: Could not create SSL/TLS secure channel.",
        "ExceptionType": "System.Net.WebException",
        "StackTrace": "   at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)\r\n   at System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)"
    }
}
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1 回答 1

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通过比较我们的两个解决方案，我发现了一些可以解决的问题。我不知道这实际上是在做什么伏都教，但它确实有效。我认为它需要某种用户上下文来打开频道。

在 Service Fabric 项目的 AppManifest.xml 中，我在底部添加了以下内容：

  <Principals>
    <Users>
      <User Name="SomeUserName">
        <MemberOf>
          <SystemGroup Name="Administrators" />
        </MemberOf>
      </User>
    </Users>
  </Principals>
  <Policies>
    <DefaultRunAsPolicy UserRef="SomeUserName" />
  </Policies>

请注意，“SomeUserName”实际上并不对应于我系统上的任何用户帐户。也许它正在内存中创建用户上下文。

于 2021-03-11T20:58:16.040 回答