How to use the PrincipalPermission Class to check authorization in ASP.NET in C#
.NET provides alternative way to enforce role and user rules. Instead of approach described in the article How to use IsInRole method to check authorization in ASP.NET in C#, you can use the PrincipalPermission class from the System.Security.Permissions namespace. You should follow the next steps:
1. Create a PrincipalPermission object that represents the …
How to use IsInRole method to check authorization in ASP.NET in VB.NET
You can use IsInRole() method to evaluate whether a user is a member of a group. This method accepts the role name as a string name and returns true if the user is a member of that role.
You can use the next code to check if the current user is a member of the Supplier role:
If …
How to use IsInRole method to check authorization in ASP.NET in C#
You can use IsInRole() method to evaluate whether a user is a member of a group. This method accepts the role name as a string name and returns true if the user is a member of that role.
You can use the next code to check if the current user is a member of the Supplier role:
if …
ASP.NET uses type of authorization which is file-based authorization, and it’s implemented by the FileAuthorizationModule. This authorization takes effect only if you’re using Windows authentication. If you’re using custom authentication or forms authentication, it’s not used.
You can understand file authorization if you know how he Windows operating system enforces file system security. When your …
If you need to manage an enterprise application that supports thousands of users and you need to define permissions for each individual user, it would be exhausting, difficult to change, and nearly impossible to complete without error. The easiest way to maintain the users is to group them into categories called roles.
In Windows authentication …
You can use approach described in the article How to control access to specific directories in ASP.NET to set file access permissions by directory. You also have the option of restricting specific files by adding <location> tags to your web.config file. The <location> tags sit outside the main <system.web> tag and are nested directly in the …
A usual application design is to place files that require authentication into a separate folder. You can follow this approach in ASP.NET by leaving the <authorization> element in the normal parent directory empty and adding a web.config file that specifies stricter settings in the secured directory.
When you add the web.config file in the subdirectory …
You can manage set of users, anonymous or authenticated, by using approach described in the article How to define authorization rules in ASP.NET. You can use the <allow> and <deny> rules to specify a user name or a list of comma-separated user names. The next example shows how to use <deny> rule to restrict access for …
You can define the authorization rules in the <authorization> element within the <system.web> section of the web.config file. The basic structure is as follows:
<authorization>
<allow users=”comma-separated list of users”
roles=”comma-separated list of roles”
verbs=”comma-separated list of verbs” />
<deny users=”comma-separated list of users”
roles=”comma-separated list of roles”
verbs=”comma-separated list of verbs” />
</authorization>
There …
ASP.NET supports resource-specific authorization without requiring you to change code and recompile the application with declarative authorization rules, which you can define in the web.config file. These rules defined by you are acted by a specific HTTP module named UrlAuthorizationModule. This module examines these rules and checks each request to make sure users can’t access resources …