如何在MVC Core 2.0中创建自定义授权声明(使用AspNetCore.identity)来验证自定义用户布尔属性?我已经扩展了IdentityUser(ApplicationUser)以包含一个布尔值“IsDeveloper”。我正在使用基于声明的身份验证,并希望添加自定义声明,但我不确定从哪里开始。如何创建自定义声明:
我理解核心身份声明clang 5.0,但我不熟悉自定义声明,所以我不知道从哪里开始。我找到的在线文档不起作用或不符合我的情况。
答案 0 :(得分:11)
因此,您需要在某处创建自定义声明,然后通过自定义策略或手动进行检查。
您可以这样做:
在您返回jwt-token的控制器操作中,您可以添加custom claim
:
[HttpGet]
public dynamic GetToken(string login, string password)
{
var handler = new JwtSecurityTokenHandler();
var sec = "12312313212312313213213123123132123123132132132131231313212313232131231231313212313213132123131321313213213131231231213213131311";
var securityKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(sec));
var signingCredentials = new SigningCredentials(securityKey, SecurityAlgorithms.HmacSha256Signature);
var user = GetUserFromDb(login);
var identity = new ClaimsIdentity(new GenericIdentity(user.Email), new[] { new Claim("user_id", user.Id) });
if (user.IsDeveloper)
identity.AddClaim(new Claim("IsDeveloper", "true"));
var token = handler.CreateJwtSecurityToken(subject: identity,
signingCredentials: signingCredentials,
audience: "ExampleAudience",
issuer: "ExampleIssuer",
expires: DateTime.UtcNow.AddSeconds(100));
return handler.WriteToken(token);
}
您需要实现自定义IUserClaimsPrincipalFactory
或使用UserClaimsPrincipalFactory
作为基类:
public class ApplicationClaimsIdentityFactory: Microsoft.AspNetCore.Identity.UserClaimsPrincipalFactory <ApplicationUser>
{
UserManager<ApplicationUser> _userManager;
public ApplicationClaimsIdentityFactory(UserManager<ApplicationUser> userManager,
IOptions<IdentityOptions> optionsAccessor):base(userManager, optionsAccessor)
{}
public async override Task<ClaimsPrincipal> CreateAsync(ApplicationUser user)
{
var principal = await base.CreateAsync(user);
if (user.IsDeveloper)
{
((ClaimsIdentity)principal.Identity).AddClaims(new[] {
new Claim("IsDeveloper", "true")
});
}
return principal;
}
}
然后你需要在Startup.ConfigureServices
注册它:
services.AddScoped<IUserClaimsPrincipalFactory<ApplicationUser>, ApplicationClaimsIdentityFactory>();
在Startup.ConfigureServices
:
services.AddAuthorization(options =>
{
options.AddPolicy("Developer", policy =>
policy.RequireClaim("IsDeveloper", "true"));
});
并保护您对开发者的行动:
[Authorize(Policy = "Developer"), HttpGet]
public string DeveloperSecret()
{
return "Hello Developer"
}
控制器中的某个地方:
bool isDeveloper = User.Claims.Any(c => c.Type == "IsDeveloper" && c.Value == "true")
如果您正在使用其他身份验证,则该想法应该相同。