c# - 通过 AzureServiceTokenProvider 对 CloudTableClient 进行 Azure 存储身份验证

Question

我正在考虑使用 Azure AD 来验证对 Azure 存储帐户的访问。

https://learn.microsoft.com/en-us/azure/active-directory/managed-service-identity/services-support-msi#azure-services-that-support-azure-ad-authentication

    using Microsoft.Azure.Services.AppAuthentication; // 1.1.0-preview
    using Microsoft.WindowsAzure.Storage; // 9.3.0
    using Microsoft.WindowsAzure.Storage.Auth;
    using Microsoft.WindowsAzure.Storage.Blob;
    using Microsoft.WindowsAzure.Storage.Queue;
    using Microsoft.WindowsAzure.Storage.Table;
    using System;
    using System.Threading.Tasks;

    class Program
    {
        static async Task Main(string[] args)
        {
            string storageAccountName = "fill_in";

            AzureServiceTokenProvider azureServiceTokenProvider = new AzureServiceTokenProvider();

            string accessToken = await azureServiceTokenProvider.GetAccessTokenAsync("https://storage.azure.com/");//, tenantId);
            TokenCredential tokenCredential = new TokenCredential(accessToken);

            StorageCredentials storageCredentials = new StorageCredentials(tokenCredential);

            // blobs access
            CloudBlobClient cloudBlobClient = new CloudBlobClient(new StorageUri(new Uri($"https://{storageAccountName}.blob.core.windows.net")), storageCredentials);

            ContainerResultSegment containerResultSegment = await cloudBlobClient.ListContainersSegmentedAsync(null);

            CloudBlobContainer cloudBlobContainer = cloudBlobClient.GetContainerReference("test" + DateTime.Now.Ticks);

            await cloudBlobContainer.CreateIfNotExistsAsync();

            // queue access
            CloudQueueClient cloudQueueClient = new CloudQueueClient(new StorageUri(new Uri($"https://{storageAccountName}.queue.core.windows.net")), storageCredentials);

            QueueResultSegment queueResultSegment = await cloudQueueClient.ListQueuesSegmentedAsync(null);

            CloudQueue cloudQueue = cloudQueueClient.GetQueueReference("test" + DateTime.Now.Ticks);

            await cloudQueue.CreateIfNotExistsAsync();

            // table access
            CloudTableClient cloudTableClient = new CloudTableClient(new StorageUri(new Uri($"https://{storageAccountName}.table.core.windows.net")), storageCredentials);

            // this http request results in "HTTP/1.1 403 Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature." 
            TableResultSegment tableResultSegment = await cloudTableClient.ListTablesSegmentedAsync(null);

            CloudTable cloudTable = cloudTableClient.GetTableReference("test" + DateTime.Now.Ticks);

            await cloudTable.CreateIfNotExistsAsync();
        }
    }

尝试使用表会导致 Microsoft.WindowsAzure.Storage.StorageException:“服务器无法验证请求。确保授权 header 的值格式正确，包括签名。'

在 Portal.azure.com 中，我确实看到了以下角色

• 存储 Blob 数据 ___(预览)
• 存储队列数据 ___(预览)

以这种方式使用 Azure 存储表目前超出了范围，还是我遗漏了某些内容？

问候，弗洛里安

Answer 1

AAD 身份验证尚不支持表。只有 Blob 和队列，正如您从可用角色中看到的那样。