使用基本身份验证和 asp.net Web-Api,其中 JSON 获取/发布到我的 API,我需要检查用户名/密码是否存在于成员资格表中。下面的代码是做什么的:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Security;
namespace MvcApplication4.Filter
{
public class BasicAuthenticationAttribute : System.Web.Http.Filters.ActionFilterAttribute
{
public override void OnActionExecuting(System.Web.Http.Controllers.HttpActionContext actionContext)
{
if (actionContext.Request.Headers.Authorization == null)
{
actionContext.Response = new System.Net.Http.HttpResponseMessage(System.Net.HttpStatusCode.Unauthorized);
}
else
{
string authToken = actionContext.Request.Headers.Authorization.Parameter;
string decodedToken = Encoding.UTF8.GetString(Convert.FromBase64String(authToken));
string username = decodedToken.Substring(0, decodedToken.IndexOf(":"));
string password = decodedToken.Substring(decodedToken.IndexOf(":") + 1);
if (Membership.Provider.ValidateUser(username, password))
{
// User exists in the membership table
}
else
{
// User doesn't exist - so return Unathorized
actionContext.Response = new System.Net.Http.HttpResponseMessage(System.Net.HttpStatusCode.Unauthorized);
}
}
}
}
}
我需要参考其他控制器中的用户名,以确保用户名也存在于查找表中,该表说明允许用户查询哪些汽车。我的数据库中有一个表和一个关联的类:
public class ApiMembers
{
public int id { get; set; }
public string UserName { get; set; }
public int car_id { get; set; }
}
[BasicAuthentication]
public IEnumerable<Cars> GetCars(long id)
{
var auth = dba.ApiMembers.Select(a => a.car_id == id && a.UserName=***AuthorisedUserName***).FirstOrDefault();
if (auth == null || !auth.Any())
{
throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.Unauthorized));
}
else
{
// User exists in table, so give them info on car
}
我的问题是,无需再次阅读 HTTP 标头,如何将 UserName 放入AuthorisedUserName部分?有没有办法在 BasicAuthentication 过滤器中“登录”用户,或者你可以使用会话变量,比如在 webforms 中?或者有没有更好的方法来知道谁已经在其他控制器中进行了身份验证?