ASP.NET核心标识中的角色声明的JWT身份验证

Question

我如何通过声明对用户进行身份验证,其中包含用户角色？

在Startup.cs:

services.AddAuthorization(options => {
                options.AddPolicy("CanEdit", policy => policy.RequireClaim("CanEdit"));    
});

在登录控制器中我有:

    private async ValueTask<JwtSecurityToken> GetJwtSecurityToken(ApplicationUser user){
        //var totalClaims = new List<Claim>();
        //var userRoles = await _userManager.GetRolesAsync(user);
        //foreach (var role in userRoles) {
        //    var roleClaims = await _roleManager.GetClaimsAsync(await _roleManager.Roles.SingleAsync(r => r.Name.Equals(role)));
        //    totalClaims.AddRange(roleClaims);
        //}
        var claims = new List<Claim>
        {
            new Claim(JwtRegisteredClaimNames.Jti, Guid.NewGuid().ToString()),
            new Claim(JwtRegisteredClaimNames.Sub, user.UserName),
            new Claim(JwtRegisteredClaimNames.Email, user.Email)
        };
        return new JwtSecurityToken(
            _configuration["Token:Issuer"],
            _configuration["Token:Audience"],
            //totalClaims,
            claims
            expires: DateTime.UtcNow.AddHours(12),
            signingCredentials: new SigningCredentials(
                new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_configuration["Token:Key"])),
                SecurityAlgorithms.HmacSha256)
        );
    }

方法policy.RequireClaim搜索令牌中的声明,而不是角色.

当我取消注释行时,它可以工作.这是一个好的解决方案吗？

Answer 1

要向声明添加角色,您需要使用声明类型角色,如下所示:

var rolesList = new List<string>
    {
     "Admin",
     "SuperUser",
     "Etc..."
    };


foreach (var role in rolesList)
    {
     claims.Add(new Claim(ClaimTypes.Role, role));
    }

注意: - 创建令牌时确保添加了声明.

var Token = new JwtSecurityToken(
    issuer: "localhost",
    audience: "localhost",
    expires: DateTime.Now.AddMinutes(10),
    claims:claims //claims added to token here!
    signingCredentials: Creds);
    return new JwtSecurityTokenHandler().WriteToken(Token);
    }

就是这样,现在您可以通过Authorize属性测试令牌是否包含角色"Admin".

   [Authorize(Roles="Admin")]

注意: - 测试多个角色(令牌包含声明"Admin"或"SuperUser")

  [Authorize(Roles="Admin","SuperUser")]