在 MVC 5 中访问控制器中的声明值

Question

我在我的应用程序中使用了 OWIN 身份验证。

登录操作

var claims = new List<Claim>();
claims.Add(new Claim(ClaimTypes.Name, result.UserFirstName));            
claims.Add(new Claim(ClaimTypes.Sid, result.UserID.ToString()));
var identity = new ClaimsIdentity(claims, DefaultAuthenticationTypes.ApplicationCookie);

我想通过不同的操作访问用户名和用户 ID。如何访问声明中添加的值？

更新 我试过了

var claims = new List<Claim>();
claims.Add(new Claim(ClaimTypes.Name, result.UserFirstName + " " + result.UserLastName));            
claims.Add(new Claim(ClaimTypes.Sid, result.UserIDNumber.ToString()));
var identity = new ClaimsIdentity(claims, DefaultAuthenticationTypes.ApplicationCookie);
var authenticationManager = Request.GetOwinContext().Authentication;
authenticationManager.SignIn(identity);

var claimsPrincipal = new ClaimsPrincipal(identity);
Thread.CurrentPrincipal = claimsPrincipal;

我可以在快速窗口中查看值。但即使我无法访问该值。如何获取价值？

Answer 1

您需要在登录后设置您的Thread.CurrentPrincipal，即

var claims = new List<Claim>();
claims.Add(new Claim(ClaimTypes.Name, result.UserFirstName));            
claims.Add(new Claim(ClaimTypes.Sid, result.UserID.ToString()));
var identity = new ClaimsIdentity(claims, DefaultAuthenticationTypes.ApplicationCookie);
var claimsPrincipal = new ClaimsPrincipal(identity);
// Set current principal
Thread.CurrentPrincipal = claimsPrincipal;

然后下面将检索值。

//Get the current claims principal
var identity = (ClaimsPrincipal)Thread.CurrentPrincipal;

// Get the claims values
var name = identity.Claims.Where(c => c.Type == ClaimTypes.Name)
                   .Select(c => c.Value).SingleOrDefault();
var sid = identity.Claims.Where(c => c.Type == ClaimTypes.Sid)
                   .Select(c => c.Value).SingleOrDefault();

Answer 2

这是另一个示例，也包含自定义声明类型：

登录：

var claims = new List<Claim>
{
    new Claim(ClaimTypes.Name, user.Name, ClaimValueTypes.String),
    new Claim(ClaimTypes.Email, user.Email ?? string.Empty, ClaimValueTypes.Email),
    new Claim(ClaimTypes.PrimarySid, user.Id.ToString(), ClaimValueTypes.Integer),
    new Claim(CustomClaimTypes.SalesId, user.SalesId.ToString(), ClaimValueTypes.Integer)
};

var claimsIdentity = new ClaimsIdentity(claims, DefaultAuthenticationTypes.ApplicationCookie);
AuthenticationManager.SignIn(claimsIdentity);

自定义声明：

public static class CustomClaimTypes
{
    public const string SalesId = "SalesId";
}

扩展方法：

public static class IdentityExtensions
{
    public static int GetSalesId(this IIdentity identity)
    {
        ClaimsIdentity claimsIdentity = identity as ClaimsIdentity;
        Claim claim = claimsIdentity?.FindFirst(CustomClaimTypes.SalesId);

        if (claim == null)
            return 0;

        return int.Parse(claim.Value);
    }

    public static string GetName(this IIdentity identity)
    {
        ClaimsIdentity claimsIdentity = identity as ClaimsIdentity;
        Claim claim = claimsIdentity?.FindFirst(ClaimTypes.Name);

        return claim?.Value ?? string.Empty;
    }
}

然后可以这样访问：

User.Identity.GetSalesId();
User.Identity.GetName();