asp.net mvc 全局权限过滤器及继成权限方法

全局权限过滤器

//-----------------------------------------------------------------------
// <copyright file="PermissionFilter.cs" company="STO EXPRESS, Ltd.">
//     Copyright (c) 2015 , All rights reserved.
// </copyright>
//-----------------------------------------------------------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web.Mvc;

namespace DotNet.MVCInfrastructure.Filter
{
    using DotNet.Model;
    using DotNet.MVCInfrastructure.Attributes;
    using DotNet.MVCInfrastructure.Common;
    using DotNet.MVCInfrastructure.Enumerations;
    using DotNet.MVCInfrastructure.Models;
    using DotNet.Utilities;
    using DotNet.Business;

    /// <summary>
    /// 身份验证过滤器
    /// 
    /// 1、匿名访问
    /// 2、登录就可以访问
    /// 3、需要验证是否有菜单或按钮或资源的权限
    /// 
    /// 
    /// 修改纪录
    /// 
    /// 2015-10-11 版本：1.0 SongBiao 创建文件。   
    /// 
    /// <author>
    ///     <name>SongBiao</name>
    ///     <date>2015-10-11</date>
    /// </author>
    /// </summary>
    public class CheckPermissionFilter : IAuthorizationFilter
    {
        /// <summary>
        /// 认证和授权是两个方面
        /// </summary>
        /// <param name="filterContext"></param>
        public void OnAuthorization(AuthorizationContext filterContext)
        {
            string pageUrl = filterContext.HttpContext.Request.Url == null ? "$$#$$" : filterContext.HttpContext.Request.Url.AbsolutePath; //OperateContext.GetThisPageUrl(false);

            //NLogHelper.Debug("CheckPermissionFilter:" + DateTime.Now + ",pageUrl=" + pageUrl);

            if (filterContext == null)
            {
                throw new ArgumentNullException("filterContext");
            }
            if (filterContext.HttpContext.Request.Url == null)
            {
                throw new ArgumentNullException("filterContext");
            }

            // 是否是Ajax请求
            var bAjax = filterContext.HttpContext.Request.IsAjaxRequest();

            // 注意 所有允许匿名访问的Controller，Action 都要设置匿名访问标签
            // 只对 Action 做判断


            // 判断 控制器 是否可以匿名访问
            var controllerAnonymous = filterContext.Controller.GetType().GetCustomAttributes(typeof(AllowAnonymousAttribute), true) as IEnumerable<AllowAnonymousAttribute>;
            // 先判断控制器是否可以匿名访问
            if ((controllerAnonymous != null && controllerAnonymous.Any()))
            {
                // 再检查Action 是否有登录检查标签
                var checkLoginActionAttr = filterContext.ActionDescriptor.GetCustomAttributes(typeof(CheckLoginAttribute), true) as IEnumerable<CheckLoginAttribute>;
                if (checkLoginActionAttr != null && checkLoginActionAttr.Any())
                {
                }
                else
                {
                    // 如果没有 让他可以继续访问 因为把Controller 设置为 AllowAnonymous 了
                    return;
                }
                // 匿名就可以访问 无需验证登录状态
                //return;
            }

            // 判断 Action 是否可以匿名访问
            var actionAnonymous = filterContext.ActionDescriptor.GetCustomAttributes(typeof(AllowAnonymousAttribute), true) as IEnumerable<AllowAnonymousAttribute>;
            if (actionAnonymous != null && actionAnonymous.Any())
            {
                // 匿名就可以访问 无需验证登录状态
                return;
            }

            // 1、允许匿名访问 用于标记在授权期间要跳过 AuthorizeAttribute 的控制器和操作的特性 
            // 2017-03-06 检查OpenId 只需传来openId
            if (!string.IsNullOrWhiteSpace(filterContext.HttpContext.Request["openId"]))
            {
                string openId = filterContext.HttpContext.Request["openId"];
                UserLogOnResult userLogOnResult = Business.Utilities.LogOnByOpenId(openId, true);
                if (userLogOnResult != null && !string.IsNullOrEmpty(userLogOnResult.StatusCode) &&
                    userLogOnResult.StatusCode == Status.OK.ToString())
                {
                    // 用户状态存储
                    OperateContext.Current.AddCurrent(userLogOnResult.UserInfo);
                }
            }
            else if (!string.IsNullOrWhiteSpace(filterContext.HttpContext.Request["AuthorizationCode"]))
            {
                // 2017-05-23 检查传过来的AuthorizationCode 支持code跳转登录
                string authorizationCode = filterContext.HttpContext.Request["AuthorizationCode"];
                string openId;
                if (BaseUserManager.VerifyAuthorizationCode(null, authorizationCode, out openId))
                {
                    // 用户状态存储
                    UserLogOnResult userLogOnResult = Business.Utilities.LogOnByOpenId(openId, true);
                    if (userLogOnResult != null && !string.IsNullOrEmpty(userLogOnResult.StatusCode) &&
                        userLogOnResult.StatusCode == Status.OK.ToString())
                    {
                        // 用户状态存储
                        OperateContext.Current.AddCurrent(userLogOnResult.UserInfo);
                    }
                }
            }

            // 2、判断是否登录或登录已超时 需要重新登录
            if (OperateContext.Current.UserInfo == null)
            {
                // 用户状态已过期
                // 判断请求是否是Ajax请求
                if (bAjax)
                {
                    BusinessResultBase result = new BusinessResultBase();
                    result.Title = "未登录或登录已超时";
                    result.Status = false;
                    result.StatusCode = BusinessStatusCode.LoginTimeOut.ToString();
                    result.StatusMessage = "请重新登录系统。";

                    var jsonResult = new JsonResult();
                    jsonResult.Data = result;
                    jsonResult.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
                    filterContext.Result = jsonResult;

                }
                else
                {
                    //filterContext.Result = new RedirectToRouteResult(new System.Web.Routing.RouteValueDictionary(new { Area="",Controller = "Account", action = "Login" }));
                    filterContext.Result = new RedirectResult(BusinessSystemInfo.LoginUrl + "?returnUrl=" + pageUrl);
                }
            }
            else
            {
                // 用户状态未过期
                // 3、拒绝某个账号登录当前系统 判断用户是否在拒绝登录的子系统中
                //if (OperateContext.Current.IsDenyVisit())
                //{
                //    if (bAjax)
                //    {
                //        BusinessResultBase result = new BusinessResultBase();
                //        result.Title = "拒绝访问当前系统";
                //        result.Status = false;
                //        result.StatusCode = BusinessStatusCode.AccessDeny.ToString();
                //        result.StatusMessage = "您的账号不允许访问当前系统。";
                //        var jsonResult = new JsonResult();
                //        jsonResult.Data = result;
                //        filterContext.Result = jsonResult;
                //    }
                //    else
                //    {
                //        filterContext.Result = new RedirectToRouteResult(new System.Web.Routing.RouteValueDictionary(new { Controller = "Prompt", action = "DenyAccess", bAjaxReq = false, message = "没有获取您拥有的权限菜单，请尝试重新登录。" }));
                //    }
                //}
                //else 
                if (OperateContext.Current.UserInfo.IsAdministrator)
                {
                    // 超级管理员不检查权限了
                    return;
                }
                else
                {
                    // 4、判断用户是否能够访问当前的controller,action

                    // 5、判断登录状态 根据Controller或Action上的标签 某些功能只需判断是否登录
                    // 判断Controller上是否有CheckLoginAttribute标签 只需要登录就可以访问

                    // 实际上检查登录也不好，应该检查改Action是否是公开的  上面做为临时用  某些系统没有菜单或者没有配置的Action可以这样做  否则都必须配置菜单

                    // 判断Controller上是否有CheckLoginAttribute标签 只需要登录就可以访问的
                    var checkLoginControllerAttr = filterContext.ActionDescriptor.ControllerDescriptor.GetCustomAttributes(typeof(CheckLoginAttribute), true) as IEnumerable<CheckLoginAttribute>;
                    if (checkLoginControllerAttr != null && checkLoginControllerAttr.Any())
                    {
                        // 否则 没有设置 CheckLogin 标签的 就要验证 向下执行  到这里 除了设置 CheckLogin 的action 都要检查菜单访问权限
                        return;
                    }

                    // 判断action上是否有CheckLoginAttribute标签 只需要登录就可以访问的
                    var checkLoginActionAttr = filterContext.ActionDescriptor.GetCustomAttributes(typeof(CheckLoginAttribute), true) as IEnumerable<CheckLoginAttribute>;
                    if (checkLoginActionAttr != null && checkLoginActionAttr.Any())
                    {
                        return;
                    }

                    // 如果有 CheckActionPermission 就过 让CheckActionPermission处理
                    var checkPermissionActionActionAttr = filterContext.ActionDescriptor.GetCustomAttributes(typeof(CheckActionPermissionAttribute), true) as IEnumerable<CheckActionPermissionAttribute>;
                    if (checkPermissionActionActionAttr != null && checkPermissionActionActionAttr.Any())
                    {
                        return;
                    }

                    // 6、有些要判断是否有某个controller或 action的权限  通过获取的权限菜单进行比较
                    // 用户具有的菜单
                    var moduleList = OperateContext.Current.UserPermission;//.GetPermissionList(false);
                    if (moduleList == null || !moduleList.Any())
                    {
                        // 没有获取到任何菜单
                        if (bAjax)
                        {
                            BusinessResultBase result = new BusinessResultBase();
                            result.Title = "没有访问权限";
                            result.Status = false;
                            result.StatusCode = BusinessStatusCode.AccessDeny.ToString();
                            result.StatusMessage = "没有获取到任何菜单，请尝试重新登录或咨询系统开发人员。";
                            var jsonResult = new JsonResult();
                            jsonResult.Data = result;
                            jsonResult.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
                            filterContext.Result = jsonResult;
                            //var jsonResult = new JsonResult { Data = new BaseModels { IsError = true, ErrMsg = "请先登录！", ErrCode = "unlogin" }, JsonRequestBehavior = JsonRequestBehavior.AllowGet };
                            //filterContext.RequestContext.HttpContext.Response.Write(JsonConvert.SerializeObject(result));
                            //filterContext.RequestContext.HttpContext.Response.End();
                        }
                        else
                        {
                            //filterContext.Result = new RedirectToRouteResult(new System.Web.Routing.RouteValueDictionary(new { Area = "", Controller = "Error", action = "NoAccess", bAjaxReq = false, message = "没有获取您拥有的权限菜单，请尝试重新登录。" }));
                            filterContext.Result = new RedirectToRouteResult(new System.Web.Routing.RouteValueDictionary(new { Area = "", Controller = "Error", action = "NoAccess", bAjaxReq = false, message = "没有获取到任何菜单，您没有权限访问当前内容：" + pageUrl + "。" }));
                        }
                    }
                    else
                    {
                        // 获取到菜单，进行比较
                        //var controllerName = (filterContext.RouteData.Values["controller"]).ToString().ToLower();
                        //var actionName = (filterContext.RouteData.Values["action"]).ToString().ToLower();
                        //var areaName = (filterContext.RouteData.DataTokens["area"] ?? "").ToString().ToLower();
                        /* 这个方式需要在controller或action上人为添加一个Attribute，没有必要，直接可以取到当前的controller和actionName
                        // 用于标记在授权期间需要CustomerResourceAttribute 的操作的特性
                        var attNames = filterContext.ActionDescriptor.GetCustomAttributes(typeof(CustomerResourceAttribute), true) as IEnumerable<CustomerResourceAttribute>;
                        // 判断用户的权限菜单中的code是否与控制器上标示的资源的code一致
                        var joinResult = (from aclEntity in moduleList
                                          join attName in attNames on aclEntity.Code equals attName.ResourceName
                                          select attName).Any();
                        if (!joinResult)
                        */
                        // 子系统菜单配置时，子系统的菜单code不能重复
                        // 同时支持通过访问地址，Code来判断
                        // 主要是要在全局过滤器里添加   filters.Add(new CheckPermissionFilter());

                        // 检查地址是否与当前Action的地址一致
                        var modules = from module in moduleList
                                      where
                                      string.Equals(module.NavigateUrl, pageUrl, StringComparison.OrdinalIgnoreCase)
                                      //|| string.Equals(module.Code, controllerName, StringComparison.OrdinalIgnoreCase)
                                      //|| string.Equals(module.Code, actionName, StringComparison.OrdinalIgnoreCase)
                                      select module;
                        //string results = JsonHelper.SerializeObject(moduleList);
                        if (!modules.Any())
                        {
                            // 菜单没有配置或者没有权限
                            if (bAjax)
                            {
                                BusinessResultBase result = new BusinessResultBase();
                                result.Title = "没有访问权限";
                                result.Status = false;
                                result.StatusCode = BusinessStatusCode.AccessDeny.ToString();
                                result.StatusMessage = "在您的权限中，您没有权限访问当前内容：" + pageUrl + "。";
                                var jsonResult = new JsonResult();
                                jsonResult.Data = result;
                                jsonResult.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
                                filterContext.Result = jsonResult;
                            }
                            else
                            {
                                filterContext.Result = new RedirectToRouteResult(new System.Web.Routing.RouteValueDictionary(new { Area = "", Controller = "Error", action = "NoAccess", bAjaxReq = false, message = "在您的权限中，您没有权限访问当前内容：" + pageUrl + "。" }));
                            }
                        }
                        else
                        {
                            return;
                        }
                    }
                }
            }
        }
    }
}

放在全局过滤器中即可，实现全部Action的访问控制

    public class FilterConfig
    {
        public static void RegisterGlobalFilters(GlobalFilterCollection filters)
        {
            // filters.Add(new HandleErrorAttribute());
            filters.Add(new ElmahHandleErrorAttribute());
            // 全局身份验证过滤器 更方便 
            filters.Add(new CheckPermissionFilter());
        }
    }

继承权限的使用场景：

在某些情况下，只要具有其中一个Action的权限，那么跟他关联的Action权限可以不用配置，
如在查询场景中，配置了用户访问 Public ActionResult Index()主页面的权限，查询时请求的是 Public ActionResult List(......)
那么在List上加上标签
[CheckActionPermission("/XXXArea/XXXController/Index")]
Public ActionResult List(......)
这样就可以了，
CheckActionPermission里的参数是要继续的Action的菜单路径。
避免为List再配置菜单，授权。
另外象添加页面，保存的action Save可以不必配置菜单授权，只要在上面配置[CheckActionPermission("/XXXArea/XXXController/Add")]即可。既然能看到添加界面，那么保存操作就应该是允许的。

//-----------------------------------------------------------------------
// <copyright file="CheckActionPermissionAttribute" company="STO, Ltd.">
//     Copyright (c) 2017 , All rights reserved.
// </copyright>
//-----------------------------------------------------------------------

using System;
using System.Linq;
using System.Web.Mvc;

namespace DotNet.MVCInfrastructure.Attributes
{
    using DotNet.MVCInfrastructure.Enumerations;
    using DotNet.MVCInfrastructure.Models;
    using DotNet.MVCInfrastructure.Common;
    using DotNet.Utilities;

    /// <summary>
    /// CheckActionPermissionAttribute
    /// 记权限拦截
    /// 
    /// 修改纪录
    /// 
    /// 2017-07-21 版本：1.0 SongBiao 创建文件。     
    /// 
    /// <author>
    ///     <name>SongBiao</name>
    ///     <date>2017-07-21</date>
    /// </author>
    /// </summary>
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false)]
    public class CheckActionPermissionAttribute : ActionFilterAttribute, IActionFilter
    {
        /// <summary>
        /// 检查的Module
        /// </summary>
        private string Module;

        /// <summary>
        /// 构造函数 module表示检查哪个菜单的权限即可
        /// 如某些列表，只需要检查主页面的菜单权限即可
        /// CheckActionPermission["/Headquarters/DaTouBiMain/Index"]
        /// </summary>
        /// <param name="module"></param>
        public CheckActionPermissionAttribute(string module)
        {
            Module = module;
        }

        FilterContextInfo fcinfo;
        /// <summary>
        /// 在执行操作方法之前由 ASP.NET MVC 框架调用。
        /// </summary>
        /// <param name="filterContext"></param>
        public override void OnActionExecuting(ActionExecutingContext filterContext)
        {
            string pageUrl = filterContext.HttpContext.Request.Url == null ? "$$#$$" : filterContext.HttpContext.Request.Url.AbsolutePath; //OperateContext.GetThisPageUrl(false);
            var bAjax = filterContext.HttpContext.Request.IsAjaxRequest();
            if (string.IsNullOrWhiteSpace(Module))
            {
                if (bAjax)
                {
                    BusinessResultBase result = new BusinessResultBase();
                    result.Title = "参数值不可以为空";
                    result.Status = false;
                    result.StatusCode = BusinessStatusCode.AccessDeny.ToString();
                    result.StatusMessage = "CheckActionPermission参数值不可以为空。";
                    var jsonResult = new JsonResult();
                    jsonResult.Data = result;
                    jsonResult.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
                    filterContext.Result = jsonResult;
                }
                else
                {
                    filterContext.Result = new RedirectToRouteResult(new System.Web.Routing.RouteValueDictionary(new { Area = "", Controller = "Error", action = "NoAccess", bAjaxReq = false, message = "CheckActionPermission参数值不可以为空" }));
                }
            }
            else
            {
                if (OperateContext.Current.UserInfo == null)
                {
                    if (bAjax)
                    {
                        BusinessResultBase result = new BusinessResultBase();
                        result.Title = "未登录或登录已超时";
                        result.Status = false;
                        result.StatusCode = BusinessStatusCode.AccessDeny.ToString();
                        result.StatusMessage = "未登录或登录已超时，请重新登录系统。";
                        var jsonResult = new JsonResult();
                        jsonResult.Data = result;
                        jsonResult.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
                        filterContext.Result = jsonResult;
                    }
                    else
                    {
                        filterContext.Result = new RedirectResult(BusinessSystemInfo.LoginUrl + "?returnUrl=" + pageUrl);
                    }
                }
                else
                {
                    fcinfo = new FilterContextInfo(filterContext);
                    string areaName = fcinfo.AreaName;
                    string controllerName = fcinfo.ControllerName;
                    string actionName = fcinfo.ActionName;

                    // 当前访问的
                    string currentModule = "/";
                    if (!string.IsNullOrWhiteSpace(areaName))
                    {
                        currentModule = currentModule + areaName;
                    }
                    if (!string.IsNullOrWhiteSpace(controllerName))
                    {
                        currentModule = currentModule + "/" + controllerName;
                    }
                    if (!string.IsNullOrWhiteSpace(actionName))
                    {
                        currentModule = currentModule + "/" + actionName;
                    }

                    var moduleList = OperateContext.Current.UserPermission;
                    // 比较Module在菜单中是否存在 如列表的权限只需要验证主界面的权限即可
                    var modules = from module in moduleList
                                  where
                                  !string.IsNullOrWhiteSpace(module.NavigateUrl) && string.Equals(module.NavigateUrl.Trim(), Module.Trim(), StringComparison.OrdinalIgnoreCase)
                                  //|| string.Equals(module.Code, controllerName, StringComparison.OrdinalIgnoreCase)
                                  //|| string.Equals(module.Code, actionName, StringComparison.OrdinalIgnoreCase)
                                  select module;
                    //var modules = moduleList.Where(t => string.Equals(t.NavigateUrl, Module, StringComparison.OrdinalIgnoreCase));
                    if (modules == null || !modules.Any())
                    {
                        // 菜单没有配置或者没有权限
                        if (bAjax)
                        {
                            BusinessResultBase result = new BusinessResultBase();
                            result.Title = "没有访问权限";
                            result.Status = false;
                            result.StatusCode = BusinessStatusCode.AccessDeny.ToString();
                            result.StatusMessage = "在您的权限中，您没有权限访问当前内容：" + currentModule + "，需要授予用户对：" + Module + "的权限。";
                            var jsonResult = new JsonResult();
                            jsonResult.Data = result;
                            jsonResult.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
                            filterContext.Result = jsonResult;
                        }
                        else
                        {
                            filterContext.Result = new RedirectToRouteResult(new System.Web.Routing.RouteValueDictionary(new { Area = "", Controller = "Error", action = "NoAccess", bAjaxReq = false, message = "在您的权限中，您没有权限访问当前内容：" + currentModule + "，需要授予用户对：" + Module + "的权限。" }));
                        }
                    }
                    else
                    {
                        return;
                    }
                }
            }
        }

        /// <summary>
        /// 在执行操作方法后由 ASP.NET MVC 框架调用。
        /// </summary>
        /// <param name="filterContext"></param>
        public override void OnActionExecuted(ActionExecutedContext filterContext)
        {

            base.OnActionExecuted(filterContext);
        }

        /// <summary>
        ///  OnResultExecuted 在执行操作结果后由 ASP.NET MVC 框架调用。
        /// </summary>
        /// <param name="filterContext"></param>
        public override void OnResultExecuted(ResultExecutedContext filterContext)
        {
            base.OnResultExecuted(filterContext);
        }
        /// <summary>
        /// OnResultExecuting 在执行操作结果之前由 ASP.NET MVC 框架调用。
        /// </summary>
        /// <param name="filterContext"></param>
        public override void OnResultExecuting(ResultExecutingContext filterContext)
        {
            base.OnResultExecuting(filterContext);
        }

        public class FilterContextInfo
        {
            public FilterContextInfo(ActionExecutingContext filterContext)
            {
                #region 获取链接中的字符
                DomainName = filterContext.HttpContext.Request.Url.Authority;
                AreaName = (filterContext.RouteData.DataTokens["area"] ?? "").ToString();
                ControllerName = filterContext.RouteData.Values["controller"].ToString();
                ActionName = filterContext.RouteData.Values["action"].ToString();
                #endregion
            }
            /// <summary>
            /// 获取域名
            /// </summary>
            public string DomainName { get; set; }

            /// <summary>
            /// 获取 controllerName 名称
            /// </summary>
            public string AreaName { get; set; }

            /// <summary>
            /// 获取 controllerName 名称
            /// </summary>
            public string ControllerName { get; set; }

            /// <summary>
            /// 获取ACTION 名称
            /// </summary>
            public string ActionName { get; set; }
        }
    }
}