Authentication:
?鉴定身份信息,例如用户有没有登录,用户基本信息
Authorization:
?判定用户有没有权限
1.首先在服务容器注入鉴权服务和Cookie服务支持
services.AddAuthentication(options =>
{
options.DefaultAuthenticateScheme = CookieAuthenticationDefaults.AuthenticationScheme;//不能少
options.DefaultSignInScheme = CookieAuthenticationDefaults.AuthenticationScheme;
options.DefaultChallengeScheme = "Cookie/Login";
})
.AddCookie(options =>{});
2.注册鉴权和授权中间件,用于在管道中调用拦截校验鉴权和授权
app.UseAuthentication();
app.UseAuthorization();
3.在控制器引入特性 [Authorize] ,调用登录接口时使用HttpContext.SignInAsync()写入鉴权信息
[AllowAnonymous]
[HttpPost]
public async Task<IActionResult> LoginAsync(string name, string password)
{
//用户名密码不正确直接返回
if (!"Admin".Equals(name) || !"123456".Equals(password))
{
return new JsonResult(new { Result = false, Message = "登录失败" });
}
var claimIdentity = new ClaimsIdentity("Cookie");
claimIdentity.AddClaim(new Claim(ClaimTypes.Name, name));
claimIdentity.AddClaim(new Claim(ClaimTypes.Email, "MyEmail@qq.com"));
claimIdentity.AddClaim(new Claim(ClaimTypes.System, "EmployeeManager"));
var Properties = new AuthenticationProperties
{
ExpiresUtc = DateTime.UtcNow.AddMinutes(30),
};
//写入鉴权信息
await base.HttpContext.SignInAsync(new ClaimsPrincipal(claimIdentity), Properties);
return new JsonResult(new { Result = true, Message = "登录成功" });
}
4.因为调用 HttpContext.AuthenticateAsync() 获取鉴权的步骤,由第二部注册的中间件AuthenticationMiddleware已经替我们完成,所以可以直接在控制器内部获取HttpContext.User信息,系统提供的相对于自己实现的,框架帮我们封装了获取鉴权信息,并把它加入管道中,而不用每次在控制器中手动获取鉴权信息。
[HttpGet]
public IActionResult Authentication()
{
//这里由中间件管道已经实现了鉴权信息取值
var CookiesInfo = base.HttpContext.User;
if (CookiesInfo != null)
{
return new JsonResult(new { Result = true, Message = $"鉴权认证成功,用户已登录" });
}
return new JsonResult(new { Result = true, Message = $"鉴权认证失败,用户未登录" });
}