.Net Core 警告未配置 XML 加密器 [英] .Net Core warning No XML encryptor configured

问题描述

当我启动我的服务(Docker 容器中 .Net Core 2.2 上的 API)时，我收到一条警告:

When I start my service (API on .Net Core 2.2 in Docker container) I've got a warning:

未配置 XML 加密器.钥匙{daa53741-8295-4c9b-ae9c-e69b003f16fa} 可以持久化到存储在未加密形式.

No XML encryptor configured. Key {daa53741-8295-4c9b-ae9c-e69b003f16fa} may be persisted to storage in unencrypted form.

我没有配置数据保护.我找到了配置 DataProtection 的解决方案，但我不需要保存此密钥.对我来说，如果密钥只会持续到应用程序重新启动 - 没关系.但我不需要在日志中看到这个警告

I didn't configure DataProtection. I've found solutions to configure DataProtection but I don't need to save this key. For me if the key will only be persisted until the application restarts - it's Ok. But I don't need to see this warning in logs

有什么想法吗?我们该怎么做?

Any ideas? How can we do it?

我的启动类看起来像那里:

My startup Class looks like there:

public class Startup {
  public Startup(IConfiguration configuration) {
    Configuration = configuration;
  }

  public IConfiguration Configuration { get; }

  public void ConfigureServices(IServiceCollection services) {
    services.AddMemoryCache();
    services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
    services.AddApiVersioning(o => o.ApiVersionReader = new HeaderApiVersionReader("api-version"));
  }

  public void Configure(IApplicationBuilder app, IHostingEnvironment env, IApplicationLifetime lifetime) {
    if (env.IsDevelopment()) {
      app.UseDeveloperExceptionPage();
    }

    app.UseMvc();

    lifetime.ApplicationStarted.Register(OnApplicationStarted);
    lifetime.ApplicationStopping.Register(OnShutdown);
  }

  public void OnApplicationStarted() {
    Console.Out.WriteLine($"Open Api Started");
  }

  public void OnShutdown() {
    Console.Out.WriteLine($"Open Api is shutting down.");
  }
}

也许它也有帮助我在项目中的包

<ItemGroup>
    <PackageReference Include="BouncyCastle.NetCore" Version="1.8.5" />
    <PackageReference Include="Microsoft.AspNetCore.App" />
    <PackageReference Include="Microsoft.AspNetCore.Mvc.Versioning" Version="3.1.2" />
    <PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.2.0" PrivateAssets="All" />
    <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.5.4" />
    <PackageReference Include="Oracle.ManagedDataAccess.Core" Version="2.18.6" />
</ItemGroup>

推荐答案

这可能是权限错误，但您必须确定.抛出此错误时尝试登录.我看到在开发环境中出现此错误的原因有很多，通常是文件读取权限或找不到或没有文件.

It may be a permission error but you have to sure about it. Try to log in when this error is thrown. I see many reasons to having this error in the development environment, generally file read permission or couldn't find or no file.

用下面的日志算法包装你的主函数，看看有什么问题:

Wrap your main function with the below logging algorithm and see what's wrong:

public static void Main(string[] args)
{
    CurrentDirectoryHelpers.SetCurrentDirectory();

    Log.Logger = new LoggerConfiguration()
        .MinimumLevel.Information()
        .MinimumLevel.Override("Serilog", LogEventLevel.Information)
        .WriteTo.File("Logs/LogFrom_ProgramMain.txt")
        .CreateLogger();

    try
    {
        var whb = WebHost.CreateDefaultBuilder(args).UseContentRoot(Directory.GetCurrentDirectory());
        //whb... your codes    
        Log.Logger.Information("Information:blabla");
    }
    catch(Exception ex)
    {
        Log.Logger.Error("Main handled an exception: " + ex.Message);
    }
}

不要轻信代码，看看.

如果需要，您可以使用此辅助方法:

You can use this helper method if you need:

internal class CurrentDirectoryHelpers
{
    internal const string AspNetCoreModuleDll = "aspnetcorev2_inprocess.dll";

    [System.Runtime.InteropServices.DllImport("kernel32.dll")]
    private static extern IntPtr GetModuleHandle(string lpModuleName);

    [System.Runtime.InteropServices.DllImport(AspNetCoreModuleDll)]
    private static extern int http_get_application_properties(ref IISConfigurationData iiConfigData);

    [System.Runtime.InteropServices.StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential)]
    private struct IISConfigurationData
    {
        public IntPtr pNativeApplication;
        [System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.BStr)]
        public string pwzFullApplicationPath;
        [System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.BStr)]
        public string pwzVirtualApplicationPath;
        public bool fWindowsAuthEnabled;
        public bool fBasicAuthEnabled;
        public bool fAnonymousAuthEnable;
    }

    public static void SetCurrentDirectory()
    {
        try
        {
            // Check if physical path was provided by ANCM
            var sitePhysicalPath = Environment.GetEnvironmentVariable("ASPNETCORE_IIS_PHYSICAL_PATH");
            if (string.IsNullOrEmpty(sitePhysicalPath))
            {
                // Skip if not running ANCM InProcess
                if (GetModuleHandle(AspNetCoreModuleDll) == IntPtr.Zero)
                {
                    return;
                }
                IISConfigurationData configurationData = default(IISConfigurationData);
                if (http_get_application_properties(ref configurationData) != 0)
                {
                    return;
                }
                sitePhysicalPath = configurationData.pwzFullApplicationPath;
            }

            Environment.CurrentDirectory = sitePhysicalPath;
        }
        catch
        {
            // ignore
        }
    }
}

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