VB.net 2010 视频教程 VB.net 2010 视频教程 python基础视频教程
SQL Server 2008 视频教程 c#入门经典教程 Visual Basic从门到精通视频教程
当前位置:
首页 > temp > C#教程 >

  • .NET Core 之 自定义策咯

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
services.AddAuthorization(options =>
            {
                options.AddPolicy("AdminPolicy",
                    policyBuilder => policyBuilder
                    .RequireRole("Admin")//Claim的Role是Admin
                    .RequireUserName("Eleven")//Claim的Name是Eleven
                    .RequireClaim(ClaimTypes.Email)//必须有某个Cliam
                    //.Combine(qqEmailPolicy)
                    );//内置
 
                options.AddPolicy("UserPolicy",
                    policyBuilder => policyBuilder.RequireAssertion(context =>
                    context.User.HasClaim(c => c.Type == ClaimTypes.Role)
                    && context.User.Claims.First(c => c.Type.Equals(ClaimTypes.Role)).Value == "Admin")
               //.Combine(qqEmailPolicy)
               );//自定义
                //policy层面  没有Requirements
 
 
                //options.AddPolicy("QQEmail", policyBuilder => policyBuilder.Requirements.Add(new QQEmailRequirement()));
                options.AddPolicy("DoubleEmail", policyBuilder => policyBuilder.Requirements.Add(new DoubleEmailRequirement()));
            });
            services.AddSingleton<IAuthorizationHandler, ZhaoxiMailHandler>();
            services.AddSingleton<IAuthorizationHandler, QQMailHandler>();

 

上面是系统自带的策略，但是这种情况可能比较鸡肋。那么自定义策略使得比较灵活。

自定义 策略，继承 IAuthorizationRequirement，在 HandleRequirementAsync 实现自己自定义的策略规则，比如下面是实现用户信息，支持2种用户邮箱才允许访问特定页面或接口等。

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
/// <summary>
   /// 两种邮箱都能支持
   ///
   /// </summary>
   public class DoubleEmailRequirement : IAuthorizationRequirement
   {
   }
 
   public class QQMailHandler : AuthorizationHandler<DoubleEmailRequirement>
   {
       protected override Task HandleRequirementAsync(AuthorizationHandlerContext context, DoubleEmailRequirement requirement)
       {
           if (context.User != null && context.User.HasClaim(c => c.Type == ClaimTypes.Email))
           {
               var email = context.User.FindFirst(c => c.Type == ClaimTypes.Email).Value;
               if (email.EndsWith("@qq.com", StringComparison.OrdinalIgnoreCase))
               {
                   context.Succeed(requirement);
               }
               else
               {
                   //context.Fail();//不设置失败
               }
           }
           return Task.CompletedTask;
       }
   }
   public class ZhaoxiMailHandler : AuthorizationHandler<DoubleEmailRequirement>
   {
       protected override Task HandleRequirementAsync(AuthorizationHandlerContext context, DoubleEmailRequirement requirement)
       {
           if (context.User != null && context.User.HasClaim(c => c.Type == ClaimTypes.Email))
           {
               var email = context.User.FindFirst(c => c.Type == ClaimTypes.Email).Value;
               if (email.EndsWith("@ZhaoxiEdu.Net", StringComparison.OrdinalIgnoreCase))
               {
                   context.Succeed(requirement);
               }
               else
               {
                   //context.Fail();
               }
           }
           return Task.CompletedTask;
       }
   }
1
登录过后，会根据用户信息对比策略中信息。
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
[Authorize(AuthenticationSchemes = "Cookies", Policy = "AdminPolicy")]
    public IActionResult InfoAdminPolicy()
    {
        return View();
    }
    [Authorize(AuthenticationSchemes = "Cookies", Policy = "UserPolicy")]
    public IActionResult InfoUserPolicy()
    {
        return View();
    }
 
    [Authorize(AuthenticationSchemes = "Cookies", Policy = "QQEmail")]
    public IActionResult InfoQQEmail()
    {
        return View();
    }
 
    [Authorize(AuthenticationSchemes = "Cookies", Policy = "DoubleEmail")]
    public IActionResult InfoDoubleEmail()
    {
        return View();
    }

　　用户登录 信息

 

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
[AllowAnonymous]
       public async Task<IActionResult> LoginCustomScheme(string name, string password)
       {
           //base.HttpContext.RequestServices.
           //IAuthenticationService
 
           if ("ElevenCustomScheme".Equals(name, StringComparison.CurrentCultureIgnoreCase)
               && password.Equals("123456"))
           {
               var claimIdentity = new ClaimsIdentity("Custom");
               claimIdentity.AddClaim(new Claim(ClaimTypes.Name, name));
               claimIdentity.AddClaim(new Claim(ClaimTypes.Email, "xuyang@ZhaoxiEdu.Net"));
               await base.HttpContext.SignInAsync("CustomScheme", new ClaimsPrincipal(claimIdentity), new AuthenticationProperties
               {
                   ExpiresUtc = DateTime.UtcNow.AddMinutes(30),
               });//登录为默认的scheme  cookies
               return new JsonResult(new
               {
                   Result = true,
                   Message = "登录成功"
               });
           }
           else
           {
               await Task.CompletedTask;
               return new JsonResult(new
               {
                   Result = false,
                   Message = "登录失败"
               });
           }
       }

　　出处：https://www.cnblogs.com/lyl6796910/p/14424278.html


相关教程