asp .net mvc authorization

mvc authorize(roles from database)
asp.net mvc login form authentication
asp.net role based authorization
authorize attribute in mvc 5 example
asp.net core permission based authorization
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asp.net identity
asp.net mvc 5 identity authentication and authorization

What is the best way to protect certain areas of your web application in asp .net mvc. I know we can put [Authorization] attribute at each action, but this seems very tedious since you have to put it all over the place. I'm using membership provider and trying the way I used to do in postback model by setting this protection based on the folder. I use web.config <location> section to protect some folders. I tried this in mvc, it seems to be working, but most of tutorial uses the [Authorization] way.

Which one is the better method?

I'd highly recommend against putting it in the web.config. Actually, so do Conery, Hanselman, Haack, and Guthrie -- though not highly (p223 of Professional ASP.NET MVC 1.0)

Routes are subject to change, especially in MVC. With the WebForm model, routes are physically represented on the file system so you didn't really have to worry about it. In MVC, routes are "dynamic" for lack of a better term.

You could end up with multiple routes mapping to one controller causing a maintenance pain in the web.config. Worse, you could inadvertently have a route invoke a controller accidentally or forget to update the web.config after adding/modifying routes and leave yourself open.

If, however, you secure your controller instead of the actual route, then you don't need to worry about keeping the web.config in sync with the goings-on of the controllers and changing routes.

Just my 2 cents.

Security, Authentication, and Authorization with ASP.NET MVC , A user is authenticated by its identity and assigned roles to a user determine about authorization or permission to access resources. ASP.NET  Authorization in ASP.NET Core MVC This article describes patterns and methods available in ASP.NET Core MVC. I would like to emphasize that we will explore only authorization (a process of verifying user’s rights), rather than authentication. Thus, we will not use ASP.NET Identity, authentication protocols, etc.

One possible solution is to create a "protected controller" and use it as a base class for all the areas of your application that you want to protect

[Authorize]
public class ProtectedBaseController : Controller { 

}

public class AdminController : ProtectedBaseController { 
  ...
}

public class Admin2Controller : ProtectedBaseController { 
  ...
}

Role-based authorization in ASP.NET Core, The Authorize Attribute. In ASP.NET MVC, any incoming request is bound to a controller/method pair and served. This means that once the  So far we have implemented the Cookie-based Authentication functionality in Asp.Net Core MVC project. But what about Authorization. Authorization means, providing access to the authenticated user to access a resource based on role. So, let's first understand how we can implement the Authorization in Asp.Net Core MVC.

put [Authorisation] at the top of the controller class. that will lock down the entire controllers actions.

Thoughts on ASP.NET MVC Authorization and Security, How to implement Authentication and Authorization in ASP.NET MVC application​? What is Authentication? Authentication is a process to ensure  There is an Authorization feature with MVC, using ASP.NET MVC beta and creating the MVC project from Visual Studio, automatically adds a controller that used authorization. One thing that will help with your google search, is that it is a "filter". So try searching on "Authorization Filter MVC" and anything preview 4 or greater will help.

You can put [Authorize] to every contoller you need to secure.

You can add filter GlobalFilters.Add(new AuthorizeAttribute()); in your Startup.cs (or Global.asax) and put [AllowAnonymus] attribute to any controller or action you allow to non-registered users.

If you chose to put [Authorize] to every secure contoller you need to be sure that any controller added by you or anyone other in team will be secure. For this requirement I use such test:

[Fact]
public void AllAuth()
{
    var asm = Assembly.GetAssembly(typeof (HomeController));
    foreach (var type in asm.GetTypes())
    {
        if (typeof(Controller).IsAssignableFrom(type))
        {
            var attrs = type.GetCustomAttributes(typeof (AuthorizeAttribute));
            Assert.True(attrs.Any());
        }
    }
}

I think this way is better than a creating ProtectedContoller, because it make no guarantee that you system have all controllers secure. Also this way doesn't use inheritance, which make project heavier.

Authentication and Authorization in ASP.NET, Roles authorization has been around for years in the ASP.NET MVC application, and I have used it in a number of applications. Here is an  Read posts under ASP.NET MVC > Authentication and Authorization. 4 posts found. Create forms authentication in ASP.NET MVC; Implementing authorization

Authorization is one way to secure your application; is to apply the attribute to each controller. Another way is to use the new AllowAnonymous attribute on the login and register actions. Making secure decisions based on the current area is a Very Bad Thing and will open your application to vulnerabilities.

Code you can get here

As ASP.NET MVC 4 includes the new AllowAnonymous attribute, so you no more need to write that code. After setting the AuthorizeAttribute globally in global.asax and then whitelisting will be sufficient. This methods you want to opt out of authorization is considered a best practice in securing your action methods. Thanks.

Security In ASP.NET MVC, Perform authorization checks in views in asp.net core mvc. This technique is very useful Duration: 9:15 Posted: Aug 27, 2019 For building custom authentication, we use membership provider class which is able to check the user credentials (username & password) and role provider class that is used to verify the user authorization based on his/her roles. Finally, I'd like to mention that we are using ASP.NET MVC framework in order to build our system. I hope you will

Custom Authentication and Authorization in ASP.NET MVC, Implement authentication and authorization, check if user is authorized inside Action with ASP Duration: 3:51 Posted: Mar 5, 2017 Authorization is deciding whether a user is allowed to perform an action. For example, Alice has permission to get a resource but not create a resource. The first article in the series gives a general overview of authentication and authorization in ASP.NET Web API. Other topics describe common authentication scenarios for Web API.

Authentication And Authorization In MVC, How to implement Authentication and Authorization in ASP.NET MVC application​? What is Authentication? Authentication is nothing but a process that ensures  Authentication and Authorization in MVC is the process of validating the user as well as checking the rights to access a particular resource.

Part 1: A better way to handle authorization in ASP.NET Core – The , In ASP.NET MVC you restrict access to methods using the Authorize attribute. In particular, you use the Authorize attribute when you want to restrict access to an action method and make sure that only authenticated users can execute it.

Comments
  • ok thanks. the question is which is better, put it in all of your controllers or set it up in one file web.config. I choose the web.config.
  • Yeah kinda hard not to agree on that. :)