c# - Azure 计费使用 API 返回 401 未经授权

Question

我正在使用 Azure REST API 来获取计费使用情况和费率卡详细信息。要使用 AcquireToken() 方法获取 token ，最初我仅使用客户端 ID，然后在登录窗口中请求用户凭据。

但是，我正在寻找非交互式方法，因此我使用了客户端凭据，其中传递了客户端 ID 和 客户端 key 。

但它给出“远程服务器返回错误 401 未经授权”

当我深入研究错误时，我发现它给出错误“访问 token 来自错误的受众或资源”

请给我任何解决方案，让我无需任何用户交互即可访问 API。

提前致谢。

这是我的代码:

{
    string token = GetOAuthTokenFromAAD();
    string requestURL = String.Format("{0}/{1}/{2}/{3}",
                   ConfigurationManager.AppSettings["ARMBillingServiceURL"],
                   "subscriptions",
                   ConfigurationManager.AppSettings["SubscriptionID"],
                   "providers/Microsoft.Commerce/RateCard?api-version=2015-06-01-preview&$filter=OfferDurableId eq 'MS-AZR-*****' and Currency eq 'INR' and Locale eq 'en-IN' and RegionInfo eq 'IN'");

    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(requestURL);

    request.Headers.Add(HttpRequestHeader.Authorization, "Bearer " + token);
    request.ContentType = "application/json";
    HttpWebResponse response = (HttpWebResponse)request.GetResponse();
    Console.WriteLine(String.Format("RateCard service response status: {0}", response.StatusDescription));
}

public static string GetOAuthTokenFromAAD()
{
      AuthenticationContext authenticationContext = new AuthenticationContext(string.Format("{0}/{1}",ConfigurationManager.AppSettings["ADALServiceURL"], ConfigurationManager.AppSettings["TenantDomain"]));

      AuthenticationResult result = null;
      ClientCredential uc = new ClientCredential(Client_Id, Secret_Key);
      try
      {
           result = authenticationContext.AcquireToken("https://management.core.windows.net/", uc);
      } 
      return result.AccessToken;
}

//App Config File
<add key="ADALServiceURL" value="https://login.microsoftonline.com" />
<add key="ADALRedirectURL" value="http://*****-authentication.cloudapp.net" />
<add key="ARMBillingServiceURL" value="https://management.core.windows.net" />
<add key="TenantDomain" value="********.onmicrosoft.com" />
<add key="SubscriptionID" value="*******-****-****-****-********" />
<add key="ClientId" value="*******-****-****-****-********" />

Answer 1

更新:我还提供了这些方法作为可重用身份验证助手类库。您可以通过此链接找到相同的内容: Azure Authentication - Authenticating any Azure API Request in your Application

方法 1: 要以非交互方式使用密码方法，您需要首先按照以下帖子的“使用密码进行身份验证 - PowerShell”部分进行操作: Authenticating a service principal with ARM

然后使用下面的代码片段来获取 token 。

var authenticationContext = new AuthenticationContext(String.Format("{0}/{1}",
                                                                ConfigurationManager.AppSettings["ADALServiceURL"],
                                                                ConfigurationManager.AppSettings["TenantDomain"]));
        var credential = new ClientCredential(clientId: "11a11111-11a1-111a-a111-1afeda2bca1a", clientSecret: "passwordhere");
        var result = authenticationContext.AcquireToken(resource: "https://management.core.windows.net/", clientCredential: credential);

        if (result == null)
        {
            throw new InvalidOperationException("Failed to obtain the JWT token");
        }

        string token = result.AccessToken;

        return token;

或者(方法 2)，您也可以使用证书方法。在这种情况下，请使用与上面相同的链接，但请遵循该链接中的“使用证书进行身份验证 - PowerShell”部分。然后使用以下代码片段以非交互方式获取 token :

 var subscriptionId = "1a11aa11-5c9b-4c94-b875-b7b55af5d316";
        string tenant = "1a11111a-5713-4b00-a1c3-88da50be3ace";
        string clientId = "aa11a111-1050-4892-a2d8-4747441be14d";

        var authContext = new AuthenticationContext(string.Format("https://login.windows.net/{0}", tenant));

        X509Certificate2 cert = null;
        X509Store store = new X509Store(StoreName.My, StoreLocation.CurrentUser);
        string certName = "MyCert01";

        try
        {
            store.Open(OpenFlags.ReadOnly);
            var certCollection = store.Certificates;
            var certs = certCollection.Find(X509FindType.FindBySubjectName, certName, false);
            //var certs = certCollection.Find(X509FindType.FindBySerialNumber, "E144928868B609D35F72", false);
            if (certs == null || certs.Count <= 0)
            {
                throw new Exception("Certificate " + certName + " not found.");
            }
            cert = certs[0];
        }
        finally
        {
            store.Close();
        }

        var certCred = new ClientAssertionCertificate(clientId, cert);
        var token = authContext.AcquireToken("https://management.core.windows.net/", certCred);
        var creds = new TokenCloudCredentials(subscriptionId, token.AccessToken);
        //var client = new ResourceManagementClient(creds); 
        return token.AccessToken;