Question

这可能是一个重复的问题，但我仍然找不到任何可以解决我的问题的答案，因此再次发布。

我有一个天蓝色的工作者角色，我使用Owin selfhost添加了一个ApiController（请参阅this以供参考）。

在我的自定义控制器中，我有一个POST api，它试图通过从Request对象中提取证书来进行客户端证书身份验证，但在部署到azure cemulator时，证书始终为null。

以下是我的示例客户端代码：

enter code here

public static async Task GetResponseAsync（WebApiRequestInfo webApiRequestInfo）

{
    if (webApiRequestInfo == null)
    {
        throw new ArgumentNullException("webApiRequestInfo");
    }

    WebRequestHandler requestHandler = null;

    if (webApiRequestInfo.Certificate != null)
    {
        requestHandler = new WebRequestHandler { ClientCertificateOptions = ClientCertificateOption.Manual };
        requestHandler.ClientCertificates.Add(webApiRequestInfo.Certificate);
    }

    using (var client = requestHandler != null
        ? new HttpClient(requestHandler) {BaseAddress = webApiRequestInfo.BaseUrl}
        : new HttpClient {BaseAddress = webApiRequestInfo.BaseUrl})
    {

        client.DefaultRequestHeaders.Accept.Clear();
        client.DefaultRequestHeaders.Accept.Add(
            new MediaTypeWithQualityHeaderValue(webApiRequestInfo.MediaType));

        var method = new HttpMethod(webApiRequestInfo.HttpMethod);

        var request = new HttpRequestMessage(method, webApiRequestInfo.RelativeUrl)
        {
            Content =
                webApiRequestInfo.Content != null
                    ? new StringContent(JsonConvert.SerializeObject(webApiRequestInfo.Content), Encoding.UTF8,
                        "application/json")
                    : null
        };

        var response = await client.SendAsync(request);

        return response;

控制器代码如下所示：

[HttpPost]
        public async Task<HttpResponseMessage> GetPackage([FromBody]PackageInfo packageInfo)
        {
            string correlationId = null;
            var logger = TraceLogger<LogData>.Logger;

            try
            {
                if (string.IsNullOrEmpty(packageInfo.Partner))
                {
                    throw new ArgumentException("Partner undefined");
                }

                if (string.IsNullOrEmpty(packageInfo.ServiceEnvironment))
                {
                    throw new ArgumentException("ServiceEnvironment undefined");
                }

                if (string.IsNullOrEmpty(packageInfo.StorageEnvironment))
                {
                    throw new ArgumentException("StorageEnvironment undefined");
                }

                var cert1 = Request.GetClientCertificate();// this is always null
}

是否有我缺少的东西，或者这是天蓝色模拟器的设计。我想在部署到云服务之前澄清这一点，以确保此处没有任何遗漏。任何解决这个问题的建议都会非常有用。

Answer 1

根据我的测试，我可以访问ASP.NET Web API（托管在Azure Worker角色中）控制器操作中的客户端证书。以下示例代码供您参考。

<强> TestController.cs

public class TestController : ApiController
{
    public HttpResponseMessage Get()
    {
        return new HttpResponseMessage()
        {
            Content = new StringContent("Hello from OWIN!")
        };
    }
    public HttpResponseMessage Get(int id)
    {
        var Thumbprint = Request.GetClientCertificate().Thumbprint.ToString();
        string msg = String.Format("Hello from OWIN (id = {0})", id);
        return new HttpResponseMessage()
        {
            Content = new StringContent(msg)
        };
    }
}

在控制台应用中发送请求

X509Certificate2 certificate = new X509Certificate2(certName, password);

var Thumbprint = certificate.Thumbprint.ToString();

Console.WriteLine($"client certificate Thumbprint: {Thumbprint}");

WebRequestHandler requestHandler = new WebRequestHandler();

requestHandler = new WebRequestHandler { ClientCertificateOptions = ClientCertificateOption.Manual };
requestHandler.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(ValidateServerCertificate);

requestHandler.ClientCertificates.Add(certificate);


using (var client = new HttpClient(requestHandler))
{   
    HttpResponseMessage response = await client.GetAsync("https://127.0.0.1:9527/test/5");

    if (response.IsSuccessStatusCode)
    {
        string content = await response.Content.ReadAsStringAsync();
        Console.WriteLine($"Received response: {content}");
    }
    else
    {
        Console.WriteLine($"Error, received status code {response.StatusCode}: {response.ReasonPhrase}");
    }
}

可以在Web API控制器操作中访问客户端证书

控制台应用输出

Answer 2

问题在于证书颁发机构，因为IIS从请求中过滤掉了证书。使用CA白名单的正确证书开始正常工作。

在Azure辅助角色中托管的ApiController中的Access Client证书

2 个答案: