[AttributeUsage(AttributeTargets.Method | AttributeTargets.Class, Inherited = true, AllowMultiple = true)] public class PowerAttribute : FilterAttribute, IActionFilter { public void OnActionExecuted(ActionExecutedContext filterContext) { //throw new NotImplementedException(); } /// <summary> /// 权限标示名 /// </summary> public string PowerName { get; set; } /// <summary> /// 是否超级管理员应用 /// </summary> public bool IsSuper = false; PRotected User LoginUser = null; protected PowerConfig Power = null; public IPowerConfigService powerConfigService = AutofacDependencyResolver.Current.applicationContainer.Resolve<IPowerConfigService>(); public void OnActionExecuting(ActionExecutingContext filterContext) { LoginUser = CacheHelper.GetCache(Constant.CacheKey.LoginUserInfoCacheKey + "_" + filterContext.HttpContext.User.Identity.Name) as User; bool b = false; if (IsSuper == false) { //非超级管理员专属操作 //权限id集合 string[] acts = LoginUser.Role.ActionIds.Split(','); Power = CacheHelper.GetCache(Constant.CacheKey.PowerConfigCacheKey) as PowerConfig; if (Power == null) { Power = powerConfigService.LoadConfig(Constant.PowerConfigPath); CacheHelper.SetCache(Constant.CacheKey.PowerConfigCacheKey, Power); } try { if (Power != null) { var p = Power.PowerList.FirstOrDefault(t => t.Name == PowerName); if (p != null) { if (acts.Contains(p.Id.ToString())) { //存在权限 b = true; } } } } catch { b = false; } } //超级管理员都可以使用 if (LoginUser.IsSuperUser) { b = true; } #region 无权限执行 if (b == false) { //无权限执行 if (filterContext.HttpContext.Request.IsAjaxRequest()) { //filterContext.Result = new JsonResult() { // Data = new { pass = false, error = "无权访问" }, // JsonRequestBehavior=JsonRequestBehavior.AllowGet //}; filterContext.Result = new ContentResult() { Content = "无权访问", ContentEncoding = Encoding.UTF8 }; } else { filterContext.Controller.ViewData["ErrorMessage"] = "无权访问";//filterContext.Exception.Message + " 亲!您犯错了哦!";//得到报错的内容 filterContext.Result = new ViewResult()//new一个url为Error视图 { ViewName = "Error",/*在Shard文件夹下*/ ViewData = filterContext.Controller.ViewData//view视图的属性中的viewdata被赋值 }; } } #endregion } }
使用这个过滤拦截各种action的访问,做到权限的颗粒化,使用时候直接在action或者controller的头部加[Power(IsSuper=true,PowerName="权限名")],IsSuper是针对系统超级管理员设计,判断action是否为系统级别的action,一般是配置或者高权限的action使用,普通可以不写,或者为false。
power的参数配置我放到了两个地方,一个数据库,另一个是config文件,数据库可以通过我设计的导出,直接变成config。在运行时候根据角色的actionId去配置文件中取出ID对应的powername,然后根据powename进行判断(powername可以重复,有利于action的细化分组)
<?xml version="1.0"?><PowerConfig xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <PowerGroupList> <PowerGroup> <GroupName>操作组一</GroupName> <Id>1</Id> </PowerGroup> <PowerGroup> <GroupName>操作组二</GroupName> <Id>2</Id> </PowerGroup> </PowerGroupList> <PowerList> <Power> <ParamStr>/cms/1234</ParamStr> <Name>统计</Name> <GroupId>1</GroupId> <Id>2</Id> </Power> <Power> <ParamStr>/cms/12345</ParamStr> <Name>介绍</Name> <GroupId>1</GroupId> <Id>3</Id> </Power> <Power> <ParamStr>/links/123</ParamStr> <Name>友情链接</Name> <GroupId>1</GroupId> <Id>7</Id> </Power> <Power> <ParamStr>/cms/123</ParamStr> <Name>合作单位</Name> <GroupId>1</GroupId> <Id>8</Id> </Power> <Power> <ParamStr>/proj</ParamStr> <Name>产品展示</Name> <GroupId>1</GroupId> <Id>9</Id> </Power> <Power> <ParamStr>/message</ParamStr> <Name>客户留言</Name> <GroupId>1</GroupId> <Id>10</Id> </Power> <Power> <ParamStr>/gundong</ParamStr> <Name>滚动图</Name> <GroupId>1</GroupId> <Id>11</Id> </Power> <Power> <ParamStr>/guangao</ParamStr> <Name>广告位</Name> <GroupId>1</GroupId> <Id>12</Id> </Power> <Power> <ParamStr>/cms/123</ParamStr> <Name>文章</Name> <GroupId>2</GroupId> <Id>1</Id> </Power> <Power> <ParamStr>/admin/ActionAdd</ParamStr> <Name>文章查看</Name> <GroupId>2</GroupId> <Id>4</Id> </Power> <Power> <ParamStr>/cms/12</ParamStr> <Name>文章删除</Name> <GroupId>2</GroupId> <Id>5</Id> </Power> <Power> <ParamStr>/cms/123</ParamStr> <Name>文章修改</Name> <GroupId>2</GroupId> <Id>6</Id> </Power> </PowerList></PowerConfig>
上面就是生成的config,运行时候会加载到缓存,提高性能。他的生成是基于,Action和ActionGroup的,而Action和ActionGroup数据会存储到数据库,可以可视化添加。
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