Asp.Net MVC 自定义登录过滤器

1、新建类BaseController用于统一所有控制器继承扩展，方便扩展登录等过滤器。示例如下：

using CloudWave.JustBeHere.JBH_H5.Controllers.Attribute;using CloudWave.JustBeHere.JBH_H5.Controllers.Authorization;using CloudWave.JustBeHere.JBH_H5.Models.User;using CloudWave.JustBeHere.Web;using Jil;using System;using System.Collections.Generic;using System.Linq;using System.Text.RegularExpressions;using System.Web;using System.Web.Mvc;using static CloudWave.JustBeHere.mn.BaseModel;namespace CloudWave.JustBeHere.JBH_H5.Controllers{[Auth][ResultFilter]#if (!DEBUG)[Error]#endifpublic class BaseController : Controller{public Authentication authentication = Authentication.Instance;public bool IsLogin{get{//return true;return authentication.IsLogin;}}public LoginResult Operator{get{return authentication.CurrentUser;}}private string _hostName;/// <summary>/// 获取请求的域名/// </summary>public string HostName{get{if (string.IsNullOrEmpty(_hostName)){var url = Request.Url.ToString();// http(s)?://([\w-]+\.{0,1})+\:{0,1}[0-9]{0,1}[\w-]?var reg = new Regex(@"//([\w-]+\.{0,1})+\:{0,1}[0-9]{0,1}[\w-]+/?");var result = reg.Match(url, 0).Value;_hostName = result;}return _hostName;}}private string _hostFullName;/// <summary>/// 获取请求的域名全称（含请求协议）/// </summary>public string HostFullName{get{if (string.IsNullOrEmpty(_hostFullName)){var url = Request.Url.ToString();// http(s)?://([\w-]+\.{0,1})+\:{0,1}[0-9]{0,1}[\w-]?var reg = new Regex(@"http(s)?://([\w-]+\.{0,1})+\:{0,1}[0-9]{0,1}[\w-]+/?");var result = reg.Match(url, 0).Value;_hostFullName = result;}return _hostFullName;}}/// <summary>/// 是否为手机端访问/// </summary>public bool IsMobile{get{var uAgent = Request.ServerVariables["HTTP_USER_AGENT"];var b = new Regex(@"android.+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino", RegexOptions.IgnoreCase | RegexOptions.Multiline);var v = new Regex(@"1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(di|rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-", RegexOptions.IgnoreCase | RegexOptions.Multiline);return b.IsMatch(uAgent) || v.IsMatch(uAgent.Substring(0, 4));}}}}

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2、新建类Authentication用于管理Session、Cookie等信息。示例如下:

using CloudWave.JustBeHere.JBH_H5.Models.User;using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Mvc;using System.Web.Security;namespace CloudWave.JustBeHere.JBH_H5.Controllers.Authorization{public class Authentication{public const string UserSessionKey = "UserInfo";private Authentication(){}public static Authentication Instance{get{return new Authentication();}}/// <summary>/// 写入验证信息/// </summary>/// <param name="uInfo"></param>/// <param name="isPersistent">是否保存</param>public void SetAuth(LoginResult uInfo, bool isPersistent){string token = uInfo.Id + "|" + uInfo.Token;//将用户ID和角色写入Cookie FormsAuthentication.SetAuthCookie(token, isPersistent, FormsAuthentication.FormsCookiePath);HttpCookie authCookie = FormsAuthentication.GetAuthCookie(token, isPersistent);FormsAuthenticationTicket ticket = FormsAuthentication.Decrypt(authCookie.Value);//FormsAuthentication.RedirectFromLoginPage(ticket.Name, true);FormsAuthenticationTicket newTicket = new FormsAuthenticationTicket(ticket.Version, ticket.Name, ticket.IssueDate, DateTime.Now.AddDays(30), ticket.IsPersistent, "");authCookie.Value = FormsAuthentication.Encrypt(newTicket);HttpContext.Current.Response.AddHeader("P3P", "CP=CAO PSA OUR");//解决ie js跨域调用 HttpContext.Current.Response.Cookies.Add(authCookie);SetSession(uInfo);}/// <summary>///保存用户状态/// </summary>/// <param name="uInfo"></param>public void SetSession(LoginResult uInfo){HttpContext.Current.Session[UserSessionKey] = uInfo;}/// <summary>///保存用户状态/// </summary>/// <param name="uid"></param>public void SetSession(int uid){bool setFlag = false;if (HttpContext.Current.Session == null){throw new ArgumentNullException("SessionState Failed");}if (HttpContext.Current.Session[UserSessionKey] == null){setFlag = true;}else{//得到用户信息LoginResult sulr = HttpContext.Current.Session[UserSessionKey] as LoginResult;if (sulr.Id != uid) setFlag = true;}if (setFlag){try{//var u = GetUserInfo();//if (u != null)//{// HttpContext.Current.Session[UserSessionKey] = u;//}new RedirectToRouteResult("default", new System.Web.Routing.RouteValueDictionary(new { action = "Index", controller = "Home" }));}catch { }}}private LoginResult GetUserInfo(){var client = new Api(WebCommon.ApiUrl, WebCommon.ActiveUser, WebCommon.ApiToken);LoginResult slr = new LoginResult();client.Request.Header.Cmd = "api/staffuser/getstaffuserinfo";slr = client.ExecutePost<LoginResult>();if (client.Response.Header.statusCode == 1000){return slr;}else { return null; }}/// <summary>/// 登出/// </summary>public void SignOut(){FormsAuthentication.SignOut();HttpContext.Current.Session.Clear();}public bool IsLogin{get{return HttpContext.Current != null ? HttpContext.Current.Request.IsAuthenticated : false;}}/// <summary>/// 当前用户信息/// </summary>public LoginResult CurrentUser{get{if (!IsLogin){return null;}int uid;if (int.TryParse(HttpContext.Current.User.Identity.Name.Split('|')[0], out uid)){if (HttpContext.Current.Session[UserSessionKey] == null){SetSession(uid);}return HttpContext.Current.Session[UserSessionKey] as LoginResult;}return null;}}//public void RefreshInfo()//{// UsersExtensionInfo u = UsersService.GetById(HttpContext.Current.User.Identity.Name);// u.ImName = UsersService.GetImName(u.TTUserId);// HttpContext.Current.Session[UserSessionKey] = UserInfoDec(u);//} }}

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3、新建类AuthAttribute,继承AuthorizeAttribute类。示例如下：

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Mvc;namespace CloudWave.JustBeHere.JBH_H5.Controllers.Attribute{/// <summary>/// 登录过滤器/// </summary>public class AuthAttribute : AuthorizeAttribute{public override void OnAuthorization(AuthorizationContext filterContext){var controller = filterContext.Controller as BaseController;if (controller.IsLogin){filterContext.Controller.ViewBag.UserInfo = controller.Operator?.Id;// filterContext.Controller.ViewBag.PartnerName = controller.Operator?.PartnerName; }else{filterContext.Controller.ViewBag.UserInfo = "";// filterContext.Controller.ViewBag.PartnerName = ""; }if (!filterContext.ActionDescriptor.IsDefined(typeof(AllowAnonymousAttribute), true) && !filterContext.ActionDescriptor.ControllerDescriptor.IsDefined(typeof(AllowAnonymousAttribute), true)){if (!controller.IsLogin){//if (filterContext.HttpContext.Request.IsAjaxRequest())//{// filterContext.Result = new JsonResult// {// Data = "needlogin",// JsonRequestBehavior = JsonRequestBehavior.AllowGet// };//}//else//{// string reutrnUrl = filterContext.RequestContext.HttpContext.Request.RawUrl;// filterContext.Result = new RedirectToRouteResult("default", new System.Web.Routing.RouteValueDictionary(new { action = "index", controller = "Home", returnUrl = reutrnUrl }));//}string reutrnUrl = filterContext.RequestContext.HttpContext.Request.RawUrl;filterContext.Result = new RedirectToRouteResult("default", new System.Web.Routing.RouteValueDictionary(new { action = "index", controller = "Home", returnUrl = reutrnUrl }));}}//if (!AuthorizeCore(filterContext.HttpContext)) {// HandleUnauthorizedRequest(filterContext);//} else {// filterContext.HttpContext.Response.Cache.SetCacheability(HttpCacheability.NoCache);//} }}}

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4、在Web.config的节点system.web下新增如下节点配置：

<authentication mode="Forms"><forms loginUrl="/Home/Index" timeout="43200"></forms></authentication>

5、返回信息过滤器：

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Mvc;using System.Web.Security;namespace CloudWave.JustBeHere.JBH_H5.Controllers.Attribute{/// <summary>/// 请求返回结果过滤器/// </summary>public class ResultFilterAttribute : ActionFilterAttribute{public override void OnResultExecuting(ResultExecutingContext filterContext){if (filterContext.Result is ViewResult){var controller = (BaseController)filterContext.Controller;FormsAuthentication.SignOut();HttpContext.Current.Session.Clear();}base.OnResultExecuting(filterContext);}}}

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