缺少将 Microsoft.IdentityModel.Clients.ActiveDirectory 3.13.9 与 Azure KeyVault C# SDK 结合使用的程序集参考

Question

出于某种原因，我必须更新 Microsoft.IdentityModel.Clients.ActiveDirectory v3.13.9 和 Microsoft.Azure.KeyVault v2.0.6。它总是会因缺少程序集引用而引发异常，但将我不允许使用的 Microsoft.IdentityModel.Clients.ActiveDirectory 降级到 v2.28.4 可以解决此问题 known issue。

这是一个例外：

  InnerException:
   HResult=-2146233036
   Message=The type initializer for 'Microsoft.IdentityModel.Clients.ActiveDirectory.PlatformPlugin' threw an exception.
   Source=Microsoft.IdentityModel.Clients.ActiveDirectory
   TypeName=Microsoft.IdentityModel.Clients.ActiveDirectory.PlatformPlugin
   StackTrace:
        at Microsoft.IdentityModel.Clients.ActiveDirectory.PlatformPlugin.get_Logger()
        at Microsoft.IdentityModel.Clients.ActiveDirectory.AuthenticationContext..cctor()
   InnerException:
        ErrorCode=assembly_not_found
        HResult=-2146233088
        Message=Assembly required for the platform not found. Make sure assembly 'Microsoft.IdentityModel.Clients.ActiveDirectory.Platform, Version=3.12.0.827, Culture=neutral, PublicKeyToken=31bf3856ad364e35' exists
        Source=Microsoft.IdentityModel.Clients.ActiveDirectory
        StackTrace:
             at Microsoft.IdentityModel.Clients.ActiveDirectory.PlatformPlugin.LoadPlatformSpecificAssembly()
             at Microsoft.IdentityModel.Clients.ActiveDirectory.PlatformPlugin.InitializeByAssemblyDynamicLinking()
             at Microsoft.IdentityModel.Clients.ActiveDirectory.PlatformPlugin..cctor()
        InnerException:
             FileName=Microsoft.IdentityModel.Clients.ActiveDirectory.Platform, Version=3.12.0.827, Culture=neutral, PublicKeyToken=31bf3856ad364e35
             FusionLog==== Pre-bind state information ===

代码sn-ps：

    protected KeyVaultBase(string clientId, string clientSecret)
    {
        if (string.IsNullOrWhiteSpace(clientId))
        {
            throw new ArgumentNullException(nameof(clientId));
        }

        if (string.IsNullOrWhiteSpace(clientSecret))
        {
            throw new ArgumentNullException(nameof(clientSecret));
        }

        this.KeyVaultClient = new KeyVaultClient(
            new KeyVaultClient.AuthenticationCallback(
                (authority, resource, scope) => GetAccessToken(authority, resource, scope, clientId, clientSecret)
            )
        );
    }

    private static async Task<string> GetAccessToken(string authority, string resource, string scope, string clientId, string clientSecret)
    {
        var authnContext = new AuthenticationContext(authority);
        var clientCredential = new ClientCredential(clientId, clientSecret);
        var result = await authnContext.AcquireTokenAsync(resource, clientCredential);

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

        return result.AccessToken;
    }

执行var authnContext = new AuthenticationContext(authority); 时抛出异常。

有没有人知道任何解决方案/解决方法可以在不降级的情况下解决此问题？

Answer 1

在我的情况下，references 仅安装到 class library project，而不是正在执行的 assembly，因此它抛出了这个异常。

将Microsoft.IdentityModel.Clients.ActiveDirectory nuget 包添加到执行程序集对我有用。

希望对你有帮助

Answer 2

请尝试卸载 Microsoft.IdentityModel.Clients.ActiveDirectory v3.13.9 和Microsoft.Azure.KeyVault v2.0.6，然后再次重新安装。如果解决方案中有多个项目引用它们，请确保它们都是相同的版本。

我创建了一个控制台或 Asp.net MVC 项目，使用 Microsoft.IdentityModel.Clients.ActiveDirectory v3.13.9 和 Microsoft.Azure.KeyVault v2.0.6 在我这边都可以正常工作。

以下是我的详细步骤：

1.创建一个C#控制台项目。

2.使用 nuget 添加 Microsoft.IdentityModel.Clients.ActiveDirectory v3.13.9。

3.使用命令从包管理器控制台添加 Microsoft.Azure.KeyVault v2.0.6

Install-Package Microsoft.Azure.KeyVault -Version 2.0.6

Packages.config 文件：

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="Microsoft.Azure.KeyVault" version="2.0.6" targetFramework="net452" />
  <package id="Microsoft.Azure.KeyVault.WebKey" version="2.0.4" targetFramework="net452" />
  <package id="Microsoft.IdentityModel.Clients.ActiveDirectory" version="3.13.9" targetFramework="net452" />
  <package id="Microsoft.Rest.ClientRuntime" version="2.3.2" targetFramework="net452" />
  <package id="Microsoft.Rest.ClientRuntime.Azure" version="3.3.1" targetFramework="net452" />
  <package id="Newtonsoft.Json" version="6.0.8" targetFramework="net452" />
</packages>

在项目中添加一个类：

 class KeyVaultBase
    {

        static string _clientId= "xxxxxxxxxxxxx";
        static string _clientSecret = "xxxxxxxxxxxxxxxx";
        static string _tenantId = "xxxxxxxxxxxxxxxx";
        public static async Task<string> GetAccessToken(string azureTenantId, string azureAppId, string azureSecretKey)
        {

            var context = new AuthenticationContext("https://login.windows.net/" + _tenantId);
            ClientCredential clientCredential = new ClientCredential(_clientId, _clientSecret);
            var tokenResponse = await context.AcquireTokenAsync("https://vault.azure.net", clientCredential);
            var accessToken = tokenResponse.AccessToken;
            return accessToken;
        }

    }

4.测试从 KeyVault 中获取秘密

static void Main(string[] args)
        {
            var kv = new KeyVaultClient(new KeyVaultClient.AuthenticationCallback(KeyVaultBase.GetAccessToken));
            string secretUri = "https://KeyVaultNameSpace.vault.azure.net/secrets/secretsname/6341322679db4f3491814ff6178dee45";
            var sec = kv.GetSecretAsync(secretUri).Result;
        }