DaniWeb Forum Index > Software Development > C#

C# RSS

How can we assign or revok permission to users on apllications through C#.NET?

Please support our C# advertiser: Intel Parallel Studio Home

•

Join Date: Sep 2009

Posts: 1

Reputation: ashok90 is an unknown quantity at this point

Solved Threads: 0

ashok90

Offline

Newbie Poster

How can we assign or revok permission to users on apllications through C#.NET?

Sep 18th, 2009

How can we give permissions or revoke permissions on applications(i.e installed softwares) for a user via c#.net.
i have get the all uers list on the computer and also installed programs list but how can i change a user permissions in a way that he may not able to use some specific application like photoshop, corel draw.

Detailed Description of Problem
I have three users 'A' , 'B' and 'C' on my Computer (Standalone) . I want that Only User 'A' can use Photoshop and User 'B' can only use coreldraw. So how we can give permissions to User 'A' and 'B'. I want to do this programmaticaly through C#.NET.

please help me to solve this problem.

Thanks

•

Join Date: Jul 2009

Posts: 903

Reputation: DdoubleD is a jewel in the rough

Solved Threads: 144

DdoubleD

Offline

Posting Shark

Re: How can we assign or revok permission to users on apllications through C#.NET?

Sep 18th, 2009

Not sure how you would do that by registered application, but here is a good link/example code showing how to add/revoke privileges to particular directory for user. You could change it also to use the File class objects instead of the Directory objects if you desire. I know it's probably not exactly what you are looking for, but maybe a workaround if needed:

Security Access Control

•

Join Date: Aug 2006

Posts: 2,065

Reputation: Ramy Mahrous is just really nice

Solved Threads: 256

Ramy Mahrous Ramy Mahrous is offline

Offline

Postaholic

Re: How can we assign or revok permission to users on apllications through C#.NET?

Sep 18th, 2009

I can suggest to use AOP http://www.postsharp.org it helps very well...

BI Developer | LINKdotNET
B.Sc Computer Science, Helwan University
Technical blog | http://ramymahrous.wordpress.com
LinkedIn | http://www.linkedin.com/in/ramymahrous

•

Join Date: Jul 2009

Posts: 903

Reputation: DdoubleD is a jewel in the rough

Solved Threads: 144

DdoubleD

Offline

Posting Shark

Re: How can we assign or revok permission to users on apllications through C#.NET?

Sep 18th, 2009

I found this code, but havn't tried it. It shows how to revoke registry privilege for software application, and I think it might be more of what you are looking for.

 Help with Code Tags 
 C# Syntax (Toggle Plain Text) 
 
 
public static void RevokeRegKeyRights(RegistryKey regKey,
                                      NTAccount user,
                                      RegistryRights rightsFlags,
                                      InheritanceFlags inherFlags,
                                      PropagationFlags propFlags,
                                      AccessControlType actFlags)
{
    RegistrySecurity regSecurity = regKey.GetAccessControl();
 
    RegistryAccessRule rule = new RegistryAccessRule(user, rightsFlags, inherFlags,
                                                     propFlags, actFlags);
    regSecurity.RemoveAccessRuleSpecific(rule);
 
    regKey.SetAccessControl(regSecurity);
}

public static void RevokeRegKeyRights(RegistryKey regKey,
                                      NTAccount user,
                                      RegistryRights rightsFlags,
                                      InheritanceFlags inherFlags,
                                      PropagationFlags propFlags,
                                      AccessControlType actFlags)
{
    RegistrySecurity regSecurity = regKey.GetAccessControl();

    RegistryAccessRule rule = new RegistryAccessRule(user, rightsFlags, inherFlags,
                                                     propFlags, actFlags);
    regSecurity.RemoveAccessRuleSpecific(rule);

    regKey.SetAccessControl(regSecurity);
}

I believe that if you call the above with the RegistryRights.ExecuteKey option, it should prevent that user from launching the application:

 Help with Code Tags 
 C# Syntax (Toggle Plain Text) 
            NTAccount user = new NTAccount(@"WRKSTN\ST");
 
            using (RegistryKey regKey = Registry.LocalMachine.OpenSubKey(
                                    @"SOFTWARE\MyCompany\MyApp"))
            {
                RevokeRegKeyRights(regKey, user, RegistryRights.ExecuteKey,
                               InheritanceFlags.None, PropagationFlags.None,
                               AccessControlType.Allow);
             }
            NTAccount user = new NTAccount(@"WRKSTN\ST");

            using (RegistryKey regKey = Registry.LocalMachine.OpenSubKey(
                                    @"SOFTWARE\MyCompany\MyApp"))
            {
                RevokeRegKeyRights(regKey, user, RegistryRights.ExecuteKey,
                               InheritanceFlags.None, PropagationFlags.None,
                               AccessControlType.Allow);
             }

•

Join Date: Aug 2006

Posts: 2,065

Reputation: Ramy Mahrous is just really nice

Solved Threads: 256

Ramy Mahrous Ramy Mahrous is offline

Offline

Postaholic

Re: How can we assign or revok permission to users on apllications through C#.NET?

Sep 18th, 2009

Sorry you need to apply permission on your developed application or another applications
In case of another applications, you may the one who has the administrative permission and when install log on the i.e. 'A' account and right click on the exe and run it as administrator enter your username and password and in installation progress say just for this user. (Just if the application supports that)
You need to disable some user permissions....

BI Developer | LINKdotNET
B.Sc Computer Science, Helwan University
Technical blog | http://ramymahrous.wordpress.com
LinkedIn | http://www.linkedin.com/in/ramymahrous

•

Join Date: Oct 2008

Posts: 2,612

Reputation: adatapost has much to be proud of

Solved Threads: 463

adatapost

Offline

Posting Maven

Re: How can we assign or revok permission to users on apllications through C#.NET?

Sep 19th, 2009

You need to block a pogram execution instead of setting/resetting permission.

Failure is not fatal, but failure to change might be. - John Wooden

Thread Tools	Search this Thread
Show Printable Version Email this Page

DaniWeb Message

Cancel Changes