using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web.Http;
using System.Web.Security;
using WebApiBasicAuthorize.CustomerAttribute;
using WebApiBasicAuthorize.Entity;

namespace WebApiBasicAuthorize.Controllers
{
    [BasicAuthorize]
    public class UsersController : ApiController
    {
        /// <summary>
        /// 允許匿名登錄
        /// </summary>
        /// <param name="account"></param>
        /// <param name="password"></param>
        /// <returns></returns>
        [AllowAnonymous]
        [HttpGet]
        public IHttpActionResult Login(string account,string password)
        {
            ReturnValueEntity entity = new ReturnValueEntity();
            // 真實(shí)生產(chǎn)環(huán)境中要去數(shù)據(jù)庫校驗(yàn)account和password
            if (account.ToUpper().Trim().Equals("ADMIN") && password.Trim().Equals("123456"))
            {
                FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(0, account, DateTime.Now,
                    DateTime.Now.AddHours(1), true, string.Format("{0}&{1}", account, password),
                    FormsAuthentication.FormsCookiePath);
                var result = new { Result = true, Ticket = FormsAuthentication.Encrypt(ticket) };
                entity.Result = true;
                entity.Ticket = FormsAuthentication.Encrypt(ticket);
            }
            else
            {
                entity.Result = false;
                entity.Ticket = "";
            }
            return Json<ReturnValueEntity>(entity);
        }

        [HttpGet]
        public IHttpActionResult Get()
        {
            List<int> list = new List<int>();
            list.Add(1);
            list.Add(2);
            list.Add(3);
            list.Add(4);
            list.Add(5);
            return Json<List<int>>(list);
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Http;
using System.Web.Http.Controllers;
using System.Web.Security;

namespace WebApiBasicAuthorize.CustomerAttribute
{
    /// <summary>
    ///  自定義特性繼承自AuthorizeAttribute
    /// </summary>
    public class BasicAuthorizeAttribute:AuthorizeAttribute
    {
        public override void OnAuthorization(HttpActionContext actionContext)
        {
            // 從當(dāng)前http請(qǐng)求Request對(duì)象的頭部信息里面獲取Authorization屬性
            var authorization = actionContext.Request.Headers.Authorization;
            // 判斷控制器獲取action方法上面是否有AllowAnonymousAttribute特性，如果有，則允許匿名登錄
            if (actionContext.ActionDescriptor.GetCustomAttributes<AllowAnonymousAttribute>(true).Count != 0
                || actionContext.ActionDescriptor.ControllerDescriptor.GetCustomAttributes<AllowAnonymousAttribute>(true).Count != 0)
            {
                base.OnAuthorization(actionContext);
            }
            else if (authorization != null && authorization.Parameter != null)
            {
                // 驗(yàn)證用戶邏輯
                if (ValidateTicket(authorization.Parameter))
                {
                    // 驗(yàn)證通過
                    base.IsAuthorized(actionContext);
                }
                else
                {
                    this.HandleUnauthorizedRequest(actionContext);
                }
            }
            else
            {
                // 返回401沒有授權(quán)的狀態(tài)碼
                this.HandleUnauthorizedRequest(actionContext);
            }

        }

        /// <summary>
        /// 驗(yàn)證Ticket信息
        /// </summary>
        /// <param name="encryptTicket"></param>
        /// <returns></returns>
        private bool ValidateTicket(string encryptTicket)
        {
            // 解密Ticket
            var strTicket = FormsAuthentication.Decrypt(encryptTicket).UserData;
            // 從Ticket里面獲取用戶名和密碼
            int index = strTicket.IndexOf("&");
            //string strUser=strTicket
            string[] array = strTicket.Split('&');
            string strUser = array[0];
            string strPwd = array[1];
            // 真實(shí)生產(chǎn)環(huán)境中應(yīng)該用解密的用戶名和密碼去數(shù)據(jù)庫驗(yàn)證，這里為了演示方便
            // 假定用戶名是Admin，密碼是123456
            if(strUser.Equals("Admin")&&strPwd.Equals("123456"))
            {
                return true;
            }
            else
            {
                return false;
            }           
        }
    }
}

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>權(quán)限認(rèn)證</title>
    <script src="jquery-1.10.2.min.js"></script>
    <script>
        // 定義全局的ticket變量，用來保存登錄成功以后的Ticket值
        var ticket;
       window.onload=function(){
            
       };
 
       function Login(){
           $.ajax({
               url:"http://localhost:20033/api/users?account="+$("#acc").val().trim()+"&password="+$("#pwd").val().trim(),
               type:"Get",
               dataType:"json",
               "headers": {
                "Content-Type": "application/json",
                "cache-control": "no-cache"
              },
               success:function(data){
                   if(result.Result){
                       ticket=data.Ticket;
                   }else{
                       alert("失敗");
                   }
               },
               error:function(data){
                   alert(data);
               }
           });
       };
 
       function Test(){
           alert(ticket);
           $.ajax({
               url:'http://localhost:20033/api/users',
               type:"Get",
               dataType:"json",
               beforeSend:function(XHR){
                   //發(fā)送ajax請(qǐng)求之前向http的head里面加入驗(yàn)證信息
                   XHR.setRequestHeader('Authorization','BasicAuth '+ticket);
               },
               success:function(data){
                   alert(data);
               },
               error:function(data){
                   alert(data);
               }
 
           });
 
       };
    </script>
</head>
 
<body>
    <div>
        <div>
                <label>用戶名:</label>
                <input type="text" id="acc">
        </div>
        <div>
                <label>密碼：</label>
                <input type="password" id="pwd">
        </div>
        <div>
                <input type="button" id="btnLogin" onclick="Login()" value="登錄">
        </div>
        <div>
            <input type="button" id="GetAccount" onclick="Test()" value="測(cè)試">
        </div>
    </div>
</body>
</html>