ASP.NET Core - 使用 Windows 身份验证进行授权 [英] ASP.NET Core - Authorization Using Windows Authentication

问题描述

我已将 Web api 配置为使用 Windows 身份验证.我的目标本质上是根据用户 Windows 帐户限制控制器中的某些操作.有些将能够执行读取操作，而其他将能够执行将写入基础数据库的操作.我找到了大量关于如何设置基于声明的授权的文档，这是我认为我需要走的路线.我还没有发现如何使用 windows auth 进行设置.我想我错过了中间步骤，例如将 Windows 身份验证注册为身份提供者?

I have configured my web api to work with windows authentication. My goal is essentially to restrict certain actions in my controllers based on a users windows account. Some will be able to preform read actions while others will be able to preform actions that will write to the underlying database. I have found plenty of documentation on how to set up claims based authorization which is the route I think I need to go. What I have not found is how to set this up with windows auth. I think I am missing a middle step such as registering the windows auth as the identity provider?

startup.cs

public void ConfigureServices(IServiceCollection services)
{
    services.AddMvc();

    services.AddAuthentication(IISDefaults.AuthenticationScheme);

    services.AddAuthorization(options =>
    {
        options.AddPolicy("readOnly", policy =>
                          policy.RequireClaim(`???????????????????????`));
        options.AddPolicy("write", policy =>
                          policy.RequireClaim(`???????????????????????`));
    });
}

控制器

[Authorize(Policy = "ReadOnly")]
public class MyController : Controller
{
    public ActionResult SomeReadOnlyAction()
    {
        //Return data from database
    }

    [Authorize(Policy = "Write")]
    public ActionResult AWriteAction()
    {
        //Create/Update/Delete data from database
    }
}

我想问这个问题的另一种方法是你如何配置或访问声明/角色等......使用 Windows 身份验证.

I guess another way to ask this question is how do you configure or access claims/roles etc... with windows authentication.

推荐答案

看来您想通过策略使用基于声明的授权.在您的应用程序中设置 Windows 身份验证后，您可以向 ClaimsPrincipal 添加自定义声明，检查用户的身份并确认当前用户具有哪些权限:

That seems you want to use claims-based authorization via policies . After setting windows authentication in your application , you could add custom claim to ClaimsPrincipal ,check user's identity and confirm which permission current user has :

1. 您可以向应用程序添加声明转换服务:

1. You can add a claims transformation service to your application:

class ClaimsTransformer : IClaimsTransformation
{
    public Task<ClaimsPrincipal> TransformAsync(ClaimsPrincipal principal)
    {
        var id = ((ClaimsIdentity)principal.Identity);

        var ci = new ClaimsIdentity(id.Claims, id.AuthenticationType, id.NameClaimType, id.RoleClaimType);
        if (ci.Name.Equals("name"))
        {
            ci.AddClaim(new Claim("permission", "readOnly"));
        }
        else
        {
            ci.AddClaim(new Claim("permission", "write"));

        }


        var cp = new ClaimsPrincipal(ci);

        return Task.FromResult(cp);
    }
}

添加到 Startup.cs(.net Core 2.0):

Add to Startup.cs(.net Core 2.0) :

    services.AddTransient<IClaimsTransformation, ClaimsTransformer>();

设置您的政策:

Set your policy :

    services.AddAuthorization(options =>
    {
        options.AddPolicy("Readonly", policy =>
                          policy.RequireClaim("permission", "readOnly"));

        options.AddPolicy("Write", policy =>
                        policy.RequireClaim("permission", "write"));
    });

通过要求此政策限制对控制器或操作的访问:

Restrict access to a controller or action by requiring this policy:

    [Authorize(Policy = "Write")]
    public IActionResult Contact()
    {
        ViewData["Message"] = "Your contact page.";

        return View();
    }

如果您已经在 AD 中添加了组(写入、只读)并将相关用户添加到组中，您还可以查看组:

If you have already add groups(write,readonly) in your AD and add the related users to group , you can also check the groups :

public static class Security
{
    public static bool IsInGroup(this ClaimsPrincipal User, string GroupName)
    {
        var groups = new List<string>();

        var wi = (WindowsIdentity)User.Identity;
        if (wi.Groups != null)
        {
            foreach (var group in wi.Groups)
            {
                try
                {
                    groups.Add(group.Translate(typeof(NTAccount)).ToString());
                }
                catch (Exception)
                {
                    // ignored
                }
            }
            return groups.Contains(GroupName);
        }
        return false;
    }
}

并使用像:

 if (User.IsInGroup("GroupName"))
 {

 }

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