ASP.NET MVC 基于页面的权限管理

菜单表

namespace AspNetMvcAuthDemo1.Models
{
public class PermissionItem
{
public int ID { set; get; }

public int PermissionID { set; get; }

public string Name { set; get; }

public string Route { set; get; }
}
}

菜单表集合

namespace AspNetMvcAuthDemo1.Models
{
public class PermissionList
{
public int ID { set; get; }

public int PermissionID { set; get; }

public int UserID { set; get; }
}
}

模拟初始化菜单数据

namespace AspNetMvcAuthDemo1.Models
{
public class UrlAuthorizeEntities
{
public IEnumerable<PermissionItem> PermissionItems = new List<PermissionItem>
{
new PermissionItem{ ID = 1 , PermissionID = 1, Name = "Test Page 1", Route = "/Home/Page1" },
new PermissionItem{ ID = 2 , PermissionID = 2, Name = "Test Page 2", Route = "/Home/Page2" },
new PermissionItem{ ID = 3 , PermissionID = 3, Name = "Test Page 3", Route = "/Home/Page3" },
new PermissionItem{ ID = 4 , PermissionID = 1, Name = "Test Page 4", Route = "/Home/Page4" },
new PermissionItem{ ID = 5 , PermissionID = 2, Name = "Test Page 5", Route = "/Home/Page5" }
};

public IEnumerable<PermissionList> PermissionList = new List<PermissionList>
{
new PermissionList{ ID = 1 , PermissionID = 2, UserID = 1},
new PermissionList{ ID = 2 , PermissionID = 3, UserID = 1},
};
}
}

账户帮助类-AccountHelper

namespace AspNetMvcAuthDemo1.UrlAuthorize
{
/// <summary>
/// Account Helper
/// </summary>
public static class AccountHelper
{
/// <summary>
/// Get all permission list
/// </summary>
/// <returns>Permission List</returns>
public static List<PermissionItem> GetPermissionItems()
{
if (HttpContext.Current.Cache["PermissionItems"] == null)
{
UrlAuthorizeEntities db = new UrlAuthorizeEntities();
var items = db.PermissionItems.Where(c => c.PermissionID > 0).ToList();
HttpContext.Current.Cache["PermissionItems"] = items;
}

return (List<PermissionItem>)HttpContext.Current.Cache["PermissionItems"];
}

/// <summary>
/// Get User Permission
/// </summary>
/// <param name="userID">User ID</param>
/// <returns>User Permission Array</returns>
public static Int32[] GetUserPermission(int userID)
{
if (HttpContext.Current.Session["Permission"] == null)
{
UrlAuthorizeEntities db = new UrlAuthorizeEntities();
var permissions = db.PermissionList.Where(c => c.UserID == userID).Select(c=>c.PermissionID).ToArray();
HttpContext.Current.Session["Permission"] = permissions;
}
return (Int32[])HttpContext.Current.Session["Permission"];
}
}
}

账户帮助类-AccountHelper

namespace AspNetMvcAuthDemo1.UrlAuthorize
{
/// <summary>
/// URL permission
/// </summary>
public class UrlAuthorizeAttribute : AuthorizeAttribute
{
/// <summary>
/// Rewrite OnAuthorization
/// </summary>
/// <param name="filterContext"></param>
public override void OnAuthorization(AuthorizationContext filterContext)
{
//Get permission list
List<PermissionItem> pItems = AccountHelper.GetPermissionItems();

//Get current page permission ID,if items is null,the page you what to access has not been configed.
var item = pItems.FirstOrDefault(c => c.Route == filterContext.HttpContext.Request.Path);

if (item != null)
{
int[] permissions = AccountHelper.GetUserPermission(int.Parse(filterContext.HttpContext.Session["UserID"].ToString()));
if (Array.IndexOf<Int32>(permissions, item.PermissionID) == -1)
{
//have not permission
filterContext.HttpContext.Response.Write("You have no permission to access this page.");
filterContext.HttpContext.Response.End();
}
}
else
{
//the page you what to access has not been configed.
filterContext.HttpContext.Response.Write("The page you want to access has not been configed permission.");
filterContext.HttpContext.Response.End();
}
}
}
}

控制器

namespace AspNetMvcAuthDemo1.Controllers
{
public class HomeController : Controller
{
public ActionResult Index()
{
return View();
}

public ActionResult About()
{
ViewBag.Message = "Your application description page.";

return View();
}

public ActionResult Contact()
{
ViewBag.Message = "Your contact page.";

return View();
}

public string Login()
{
HttpContext.Session["UserID"] = 1;
return "Login success.";
}

[UrlAuthorize]
public string Page1()
{
return "Page1";
}

[UrlAuthorize]
public string Page2()
{
return "Page2";
}

[UrlAuthorize]
public string Page3()
{
return "Page3";
}

[UrlAuthorize]
public string Page4()
{
return "Page4";
}

[UrlAuthorize]
public string Page5()
{
return "Page5";
}

[UrlAuthorize]
public string Page6()
{
return "Page6";
}
}
}

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