mvc 权限控制续——使用存储过程判断

以前的随笔没有给出数据库，这里给出具体的数据库以及怎么使用存储过程来判断

参考：

asp.net MVC 权限设计(续）

http://www.cnblogs.com/xiaoqi/archive/2011/01/24/1942880.html

 下面是数据库：

/****** Object:  Table [dbo].[Resource]    Script Date: 03/16/2012 10:43:39 ******/

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

CREATE TABLE [dbo].[Resource](

	[ID] [int] IDENTITY(1,1) NOT NULL,

	[Name] [nvarchar](max) NOT NULL,

	[ControllName] [nvarchar](max) NOT NULL,

	[IsController] [bit] NOT NULL,

	[IsAllowedNoneRoles] [bit] NOT NULL,

	[IsAllowedAllRoles] [bit] NOT NULL,

	[CreateTime] [datetime] NOT NULL,

	[IsShow] [bit] NOT NULL,

	[Title] [nvarchar](max) NULL,

	[IsHeader] [bit] NOT NULL,

 CONSTRAINT [PK_Resource] PRIMARY KEY CLUSTERED 

(

	[ID] ASC

)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]

) ON [PRIMARY]

GO

/****** Object:  Table [dbo].[Role]    Script Date: 03/16/2012 10:43:39 ******/

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

CREATE TABLE [dbo].[Role](

	[ID] [int] IDENTITY(1,1) NOT NULL,

	[RoleName] [nvarchar](max) NOT NULL,

	[Description] [nvarchar](max) NOT NULL,

	[CreateTime] [datetime] NOT NULL,

 CONSTRAINT [PK_Role] PRIMARY KEY CLUSTERED 

(

	[ID] ASC

)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]

) ON [PRIMARY]

GO

/****** Object:  Table [dbo].[User]    Script Date: 03/16/2012 10:43:39 ******/

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

CREATE TABLE [dbo].[User](

	[ID] [int] IDENTITY(1,1) NOT NULL,

	[Email] [nvarchar](max) NOT NULL,

	[Name] [nvarchar](max) NOT NULL,

	[Password] [nvarchar](max) NOT NULL,

	[CreateTime] [datetime] NOT NULL,

	[UpdateTime] [datetime] NOT NULL

 CONSTRAINT [PK_User] PRIMARY KEY CLUSTERED 

(

	[ID] ASC

)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]

) ON [PRIMARY]

GO

/****** Object:  Table [dbo].[RoleUser]    Script Date: 03/16/2012 10:43:39 ******/

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

CREATE TABLE [dbo].[RoleUser](

	[RolesInternal_ID] [int] NOT NULL,

	[UserInternal_ID] [int] NOT NULL,

 CONSTRAINT [PK_RoleUser] PRIMARY KEY NONCLUSTERED 

(

	[RolesInternal_ID] ASC,

	[UserInternal_ID] ASC

)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]

) ON [PRIMARY]

GO

/****** Object:  Table [dbo].[ResourceRole]    Script Date: 03/16/2012 10:43:39 ******/

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

CREATE TABLE [dbo].[ResourceRole](

	[ResourceInternal_ID] [int] NOT NULL,

	[RolesInternal_ID] [int] NOT NULL,

 CONSTRAINT [PK_ResourceRole] PRIMARY KEY NONCLUSTERED 

(

	[ResourceInternal_ID] ASC,

	[RolesInternal_ID] ASC

)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]

) ON [PRIMARY]

GO



/****** Object:  Default [DF_User_CurrentScore]    Script Date: 03/16/2012 10:43:39 ******/

ALTER TABLE [dbo].[User] ADD  CONSTRAINT [DF_User_CurrentScore]  DEFAULT ((0)) FOR [CurrentScore]

GO

/****** Object:  ForeignKey [FK_RoleUser_Role]    Script Date: 03/16/2012 10:43:39 ******/

ALTER TABLE [dbo].[RoleUser]  WITH CHECK ADD  CONSTRAINT [FK_RoleUser_Role] FOREIGN KEY([RolesInternal_ID])

REFERENCES [dbo].[Role] ([ID])

GO

ALTER TABLE [dbo].[RoleUser] CHECK CONSTRAINT [FK_RoleUser_Role]

GO

/****** Object:  ForeignKey [FK_RoleUser_User]    Script Date: 03/16/2012 10:43:39 ******/

ALTER TABLE [dbo].[RoleUser]  WITH CHECK ADD  CONSTRAINT [FK_RoleUser_User] FOREIGN KEY([UserInternal_ID])

REFERENCES [dbo].[User] ([ID])

GO

ALTER TABLE [dbo].[RoleUser] CHECK CONSTRAINT [FK_RoleUser_User]

GO

/****** Object:  ForeignKey [FK_ResourceRole_Resource]    Script Date: 03/16/2012 10:43:39 ******/

ALTER TABLE [dbo].[ResourceRole]  WITH CHECK ADD  CONSTRAINT [FK_ResourceRole_Resource] FOREIGN KEY([ResourceInternal_ID])

REFERENCES [dbo].[Resource] ([ID])

GO

ALTER TABLE [dbo].[ResourceRole] CHECK CONSTRAINT [FK_ResourceRole_Resource]

GO

/****** Object:  ForeignKey [FK_ResourceRole_Role]    Script Date: 03/16/2012 10:43:39 ******/

ALTER TABLE [dbo].[ResourceRole]  WITH CHECK ADD  CONSTRAINT [FK_ResourceRole_Role] FOREIGN KEY([RolesInternal_ID])

REFERENCES [dbo].[Role] ([ID])

GO

ALTER TABLE [dbo].[ResourceRole] CHECK CONSTRAINT [FK_ResourceRole_Role]

GO

 判断权限的存储过程如下，判断方法同前面的c#，效率有所提升：

/****** Object:  StoredProcedure [dbo].[CheckUserAuthorization]    Script Date: 03/16/2012 10:43:34 ******/

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

-- =============================================

-- Author:		

-- Create date: <2012/2/28>

-- Description:	<-- 判断用户是否有权限访问>

-- =============================================

CREATE PROCEDURE [dbo].[CheckUserAuthorization]

	@ControllerName nvarchar(100) = 'Task',

	@ActionName nvarchar(100) = 'Index',

	@UserID INT = 1 --用户编号 匿名用户传入0

AS

BEGIN

DECLARE @ISAllowed bit = 0

DECLARE @IsAllowedNoneRoles INT = -1

DECLARE @IsAllowedAllRoles INT = -1

DECLARE @ID INT = -1

DECLARE @ResourceCount INT = 0



-- 查找有木有记录 先查找Action

SELECT @ID=ID,@IsAllowedNoneRoles=IsAllowedNoneRoles, @IsAllowedAllRoles=IsAllowedAllRoles FROM

dbo.Resource

WHERE ControllName = @ControllerName AND Name= @ActionName



IF @ID =-1

	BEGIN

		-- 木有Action 选择 Controll

		SELECT @ID=ID,@IsAllowedNoneRoles=IsAllowedNoneRoles, @IsAllowedAllRoles=IsAllowedAllRoles FROM

		dbo.Resource

		WHERE ControllName = @ControllerName

		

		-- 木有记录，均允许访问

		IF @ID =-1

			GOTO ALLOWED;

	END



-- 如果允许匿名访问或者允许所有人访问

IF @IsAllowedNoneRoles = 1 

	GOTO ALLOWED;

	

-- 未登录用户，不允许访问

IF @UserID = 0

	GOTO NOTALLOWED;

	

-- 允许所有登录用户访问

IF @IsAllowedAllRoles = 1

	GOTO ALLOWED;



--查找用户的角色是否允许访问该资源

SELECT @ResourceCount = COUNT(*) FROM dbo.ResourceRole

WHERE RolesInternal_ID IN(

SELECT RolesInternal_ID FROM dbo.RoleUser WHERE dbo.RoleUser.UserInternal_ID = @UserID)

AND ResourceInternal_ID = @ID

	

-- 有结果，允许访问

IF(@ResourceCount>0)

	GOTO ALLOWED;;



-- 没有结果，不允许访问

	GOTO NOTALLOWED;

	

ALLOWED:

	SELECT 1 AS RESULT;

	GOTO THEEND;

	

NOTALLOWED:

	SELECT 0 AS RESULT;	

	GOTO THEEND;

THEEND:

END

GO

　　

判断是否有访问权限需要执行CheckUserAuthorization存储过程，只需要传入控制器和Action名称以及用户ID即可，EF可以使用下面的方法调用：

public bool CheckUserAuth(string controllerName, string actionName, int userId)

        {

            EntityCommand cmd = ((EntityConnection)this.Connection).CreateCommand();

            if (cmd.Connection.State != System.Data.ConnectionState.Open)

                cmd.Connection.Open();

            cmd.CommandText = this.DefaultContainerName + ".CheckUserAuthorization";

            cmd.CommandType = CommandType.StoredProcedure;



            cmd.Parameters.AddWithValue("ControllerName", controllerName);

            cmd.Parameters.AddWithValue("ActionName", actionName);

            cmd.Parameters.AddWithValue("UserID", userId);



            EntityParameter ret = new EntityParameter("ReturnValue", DbType.Int32);

            ret.Direction = ParameterDirection.ReturnValue;

            ret.Value = -1;

            cmd.Parameters.Add(ret);

            var obj = (int)cmd.ExecuteScalar();

            cmd.Connection.Close();

            return (obj > 0);

        }

 

为了减少服务器压力，你可以在执行验证后将结果缓存起来，缓存时间自己设定

var controller = filterContext.RouteData.Values["controller"].ToString();

            var action = filterContext.RouteData.Values["action"].ToString();



            var isAllowed = this.IsAllowed(user, controller, action);



            if (!isAllowed)

            {

                filterContext.Result = new RedirectToRouteResult(new RouteValueDictionary(new { controller = "Home", action = "LogOn", ReturnUrl = filterContext.HttpContext.Request.Url }));

            }

 

public bool IsAllowed(UserModel user, string controller, string action)

        {

            string key = (user != null ? user.UserId.ToString() : "null") + controller + action;

            var result = false;



            if (Cache.TryGet(key, out result))

            {

                return result;

            }



            result = IoC.Resolve().CheckUserAuthorization(controller, action, user != null ? user.UserId : 0);



            // 设置缓存  60分钟

            Cache.Set(key, result, TimeSpan.FromMinutes(60));



            // 默认禁止访问

            return result;

        }