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ASP.NET MVC SSO单点登录设计与实现

作者:佚名      ASP.NET网站开发编辑:admin      更新时间:2022-07-23

asp.net MVC SSO单点登录设计与实现

实验环境配置

HOST文件配置如下:

127.0.0.1 app.com127.0.0.1 sso.com

IIS配置如下:

应用程序池采用.Net Framework 4.0

注意IIS绑定的域名,两个完全不同域的域名。

app.com网站配置如下:

sso.com网站配置如下:

memcached缓存:

数据库配置:

数据库采用EntityFramework6.0.0,首次运行会自动创建相应的数据库和表结构。

授权验证过程演示:

在浏览器地址栏中访问:http://app.com,如果用户还未登陆则网站会自动重定向至:http://sso.com/passport,同时通过QueryString传参数的方式将对应的AppKey应用标识传递过来,运行截图如下:

URL地址:http://sso.com/passport?appkey=670b14728ad9902aecba32e22fa4f6bd&username=

输入正确的登陆账号和密码后,点击登陆按钮系统自动301重定向至应用会掉首页,毁掉成功后如下所示:

由于在不同的域下进行SSO授权登陆,所以采用QueryString方式返回授权标识。同域网站下可采用Cookie方式。由于301重定向请求是由浏览器发送的,所以在如果授权标识放入Handers中的话,浏览器重定向的时候会丢失。重定向成功后,程序自动将授权标识写入到Cookie中,点击其他页面地址时,URL地址栏中将不再会看到授权标示信息。Cookie设置如下:

登陆成功后的后续授权验证(访问其他需要授权访问的页面):

校验地址:http://sso.com/api/passport?sessionkey=xxxxxx&remark=xxxxxx

返回结果:true,false

客户端可以根据实际业务情况,选择提示用户授权已丢失,需要重新获得授权。默认自动重定向至SSO登陆页面,即:http://sso.com/passport?appkey=670b14728ad9902aecba32e22fa4f6bd&[email protected] 同时登陆页面邮箱地址文本框会自定补全用户的登陆账号,用户只需输入登陆密码即可,授权成功后会话有效期自动延长一年时间。

SSO数据库验证日志:

用户授权验证日志:

用户授权会话Session:

数据库用户账号和应用信息:

应用授权登陆验证页面核心代码:

  1 /// <summary>  2     ///  公钥:AppKey  3     ///  私钥:AppSecret  4     ///  会话:SessionKey  5     /// </summary>  6     public class PassportController : Controller  7     {  8         PRivate readonly IAppInfoService _appInfoService = new AppInfoService();  9         private readonly IAppUserService _appUserService = new AppUserService(); 10         private readonly IUserAuthSessionService _authSessionService = new UserAuthSessionService(); 11         private readonly IUserAuthOperateService _userAuthOperateService = new UserAuthOperateService(); 12  13         private const string AppInfo = "AppInfo"; 14         private const string SessionKey = "SessionKey"; 15         private const string SessionUserName = "SessionUserName"; 16  17         //默认登录界面 18         public ActionResult Index(string appKey = "", string username = "") 19         { 20             TempData[AppInfo] = _appInfoService.Get(appKey); 21  22             var viewModel = new PassportLoginRequest 23             { 24                 AppKey = appKey, 25                 UserName = username 26             }; 27  28             return View(viewModel); 29         } 30  31         //授权登录 32         [HttpPost] 33         public ActionResult Index(PassportLoginRequest model) 34         { 35             //获取应用信息 36             var appInfo = _appInfoService.Get(model.AppKey); 37             if (appInfo == null) 38             { 39                 //应用不存在 40                 return View(model); 41             } 42  43             TempData[AppInfo] = appInfo; 44  45             if (ModelState.IsValid == false) 46             { 47                 //实体验证失败 48                 return View(model); 49             } 50  51             //过滤字段无效字符 52             model.Trim(); 53  54             //获取用户信息 55             var userInfo = _appUserService.Get(model.UserName); 56             if (userInfo == null) 57             { 58                 //用户不存在 59                 return View(model); 60             } 61  62             if (userInfo.UserPwd != model.PassWord.Tomd5()) 63             { 64                 //密码不正确 65                 return View(model); 66             } 67  68             //获取当前未到期的Session 69             var currentSession = _authSessionService.ExistsByValid(appInfo.AppKey, userInfo.UserName); 70             if (currentSession == null) 71             { 72                 //构建Session 73                 currentSession = new UserAuthSession 74                 { 75                     AppKey = appInfo.AppKey, 76                     CreateTime = DateTime.Now, 77                     InvalidTime = DateTime.Now.AddYears(1), 78                     ipAddress = Request.UserHostAddress, 79                     SessionKey = Guid.NewGuid().ToString().ToMd5(), 80                     UserName = userInfo.UserName 81                 }; 82  83                 //创建Session 84                 _authSessionService.Create(currentSession); 85             } 86             else 87             { 88                 //延长有效期,默认一年 89                 _authSessionService.ExtendValid(currentSession.SessionKey); 90             } 91  92             //记录用户授权日志 93             _userAuthOperateService.Create(new UserAuthOperate 94             { 95                 CreateTime = DateTime.Now, 96                 IpAddress = Request.UserHostAddress, 97                 Remark = string.Format("{0} 登录 {1} 授权成功", currentSession.UserName, appInfo.Title), 98                 SessionKey = currentSession.SessionKey 99             }); 104 105             var redirectUrl = string.Format("{0}?SessionKey={1}&SessionUserName={2}",106                 appInfo.ReturnUrl, 107                 currentSession.SessionKey, 108                 userInfo.UserName);109 110             //跳转默认回调页面111             return Redirect(redirectUrl);112         }113     }

Memcached会话标识验证核心代码:

public class PassportController : ApiController    {        private readonly IUserAuthSessionService _authSessionService = new UserAuthSessionService();        private readonly IUserAuthOperateService _userAuthOperateService = new UserAuthOperateService();        public bool Get(string sessionKey = "", string remark = "")        {            if (_authSessionService.GetCache(sessionKey))            {                _userAuthOperateService.Create(new UserAuthOperate                {                    CreateTime = DateTime.Now,                    IpAddress = Request.RequestUri.Host,                    Remark = string.Format("验证成功-{0}", remark),                    SessionKey = sessionKey                });                return true;            }            _userAuthOperateService.Create(new UserAuthOperate            {                CreateTime = DateTime.Now,                IpAddress = Request.RequestUri.Host,                Remark = string.Format("验证失败-{0}", remark),                SessionKey = sessionKey            });            return false;        }    }

Client授权验证Filters Attribute

public class SSOAuthAttribute : ActionFilterAttribute    {        public const string SessionKey = "SessionKey";        public const string SessionUserName = "SessionUserName";        public override void OnActionExecuting(ActionExecutingContext filterContext)        {            var cookieSessionkey = "";            var cookieSessionUserName = "";            //SessionKey by QueryString            if (filterContext.HttpContext.Request.QueryString[SessionKey] != null)            {                cookieSessionkey = filterContext.HttpContext.Request.QueryString[SessionKey];                filterContext.HttpContext.Response.Cookies.Add(new HttpCookie(SessionKey, cookieSessionkey));            }            //SessionUserName by QueryString            if (filterContext.HttpContext.Request.QueryString[SessionUserName] != null)            {                cookieSessionUserName = filterContext.HttpContext.Request.QueryString[SessionUserName];                filterContext.HttpContext.Response.Cookies.Add(new HttpCookie(SessionUserName, cookieSessionUserName));            }            //从Cookie读取Se