用户验证之自定义身份验证

来源：互联网发布：linux oracle11g卸载编辑：程序博客网时间：2024/05/22 02:14

这是今天在课堂上演示的例子代码，自定义身份验证的简单做法是通过GenericPrinciple和GenericIdentity实现，也可以通过自定义Principle和Identity实现。

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading;using System.Security;using System.Security.Principal;namespace _03_CustomAuthentication{    class Program    {        static void Main(string[] args)        {            //这里实现自定义验证(GenericPrinciple)            //要求用户输入用户名和密码            Console.WriteLine("请输入用户名:");            string username = Console.ReadLine();            Console.WriteLine("请输入密码:");            string password = Console.ReadLine();            //现在的做法是直接硬编码来做身份验证            if (AuthenticateUser(username, password))            {                Console.WriteLine("欢迎使用:{0}!", username);                //GenericPrincipal p =(GenericPrincipal)Thread.CurrentPrincipal;                //Console.WriteLine("当前您是属于管理员:{0}",                 //    p.IsInRole("Admin"));                MyPrinciple p = (MyPrinciple)Thread.CurrentPrincipal;                MyIdentity i = p.Identity as MyIdentity;                Console.WriteLine("当前您是属于管理员:{0}",                     p.IsInRole("Admin"));                Console.WriteLine("用户的角色列表:");                foreach (var item in i.Roles)                {                    Console.WriteLine(item);                }            }            else                Console.WriteLine("你不是合法用户");            Console.Read();        }        private static bool AuthenticateUser(string username, string password)        {            if (username == "chenxizhang" && password == "password")            {                #region GenericIdentity                //GenericIdentity identity = new GenericIdentity(                //    username,"Custom");                //GenericPrincipal principal = new GenericPrincipal(                //    identity,                //    new[] { "Admin" });                //Thread.CurrentPrincipal = principal;                #endregion                MyIdentity identity = new MyIdentity(                    username,                     new[] { "Admin" });                MyPrinciple principle = new MyPrinciple(                    identity, identity.Roles);                Thread.CurrentPrincipal = principle;                return true;            }            return false;                    }    }    class MyPrinciple : IPrincipal {        public MyPrinciple(IIdentity identity, string[] roles)        {            _identity = identity;            _roles = roles;        }        string[] _roles;        private IIdentity _identity;        private MyPrinciple() { }//禁用默认构造器        #region IPrincipal 成员        public IIdentity Identity        {            get {                return _identity;            }        }        public bool IsInRole(string role)        {            return _roles.Contains(role);        }        #endregion    }    class MyIdentity : IIdentity {        public MyIdentity(string name, string[] roles) {            _name = name;            _roles = roles;        }        private string[] _roles;        public string[] Roles {            get {                return _roles;            }        }        private MyIdentity() { }        #region IIdentity 成员        public string AuthenticationType        {            get { return "自定义验证"; }        }        public bool IsAuthenticated        {            get { return true; }        }        private string _name;        public string Name        {            get { return _name; }        }        #endregion    }}

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