ASP.NET MVC3 How to implement custom permission system judgment and implementation

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ASP.NET Have it membership Role permission system, but this built-in system is not flexible and powerful enough, and sometimes it is complicated to operate. Here, Suyou Network introduces how to automatically determine permissions based on controllers and methods, which is simple and convenient.

First, define a class inheritance ActionFilterAttribute class, then re-method OnActionExecuting Write the following code

public override void OnActionExecuting(ActionExecutingContext filterContext)

{

if (!filterContext.HttpContext.User.Identity.IsAuthenticated)

{

//No login to perform operations

}

else

{

//Determine whether a character exists

FormsIdentity user = (FormsIdentity)HttpContext.Current.User.Identity;

var au = db.AdminUser.Where(a => a.username == user.Name).ToList();

if (au.Count > 0)

{

// string purview= au[0].group.purview;

bool is_authorize = true;

string error_msg = "No permission to access!";

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

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

BLLAdminUser admin_user = new BLLAdminUser();

string purview=admin_user.getCheckPurview(model, action);//Judgment permissions

string mypurview = admin_user.getMyPurview();

is_authorize=admin_user.inPurview(purview, mypurview);

if (!is_authorize)

{

//If verification does not pass the execution method

}

Then before the controller or method [Authorize]Just verify the mark.

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