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find user permission

Posted on 2013-10-31
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Last Modified: 2014-01-28
Using the c# code , I want  verify  the login  user has following permissions

create folder
delete folder
create file
modify file
delete file
copy file

I am using .net frame work 2.0
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Question by:Varshini S
11 Comments
 
LVL 41

Expert Comment

by:Kyle Abrahams
ID: 39614408
You need to determine the effective permissions on the parent folder.

Here's a blog that explains how to do that in detail . . . if you have any questions about it please feel free to post so I can explain further:
http://www.conarc.com/blog/2010/03/25/programmatically-getting-effective-directoryfile-permissions/
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Expert Comment

by:unknown_routine
ID: 39614472
You need to use FileSystemAccessRule Class.

Take a look at the example in this page:

http://msdn.microsoft.com/en-us/library/system.security.accesscontrol.filesystemaccessrule(v=vs.80).aspx
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Author Comment

by:Varshini S
ID: 39615251
ged325 - The sample code won't support for .net ramework 2.0 , Am I correct ?
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LVL 41

Expert Comment

by:Kyle Abrahams
ID: 39616750
Rubha it should work . . . did you try it?
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Author Comment

by:Varshini S
ID: 39617651
ged325 - I tried that but I am getting the error.

please see my attached the screen shot
ERROR.png
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Expert Comment

by:Bob Learned
ID: 39641467
You have a screen shot that shows the red squigglies, but not the error text...
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Accepted Solution

by:
Kyle Abrahams earned 2000 total points
ID: 39641725
Make sure you have using System.Linq;

Also, if you were to hit ctrl + period over rule or authorizationRules it would prompt you to add the object.

Did you add the entire function?


private static FileSystemAccessRule[] GetAccessRulesArray(string userName, string path) {  
  // get all access rules for the path - this works for a directory path as well as a file path    AuthorizationRuleCollection authorizationRules = (new FileInfo(path)).GetAccessControl().GetAccessRules(true, true, typeof(SecurityIdentifier));     

// get the user's sids    
string[] sids = GetSecurityIdentifierArray(userName);     

// get the access rules filtered by the user's sids    
return (from rule in authorizationRules.Cast<FileSystemAccessRule>()            where sids.Contains(rule.IdentityReference.Value)            select rule).ToArray();
}

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Author Comment

by:Varshini S
ID: 39648817
ged325- Thank You ,The function is working fine but when I execute this application in a workgroup computer it is throwing error since it is not in the domain. How do I change the same below method to work in work group computers ?

private static string[] GetSecurityIdentifierArray(string userName)
        {
            // connect to the domain
            PrincipalContext pc = new PrincipalContext(ContextType.Domain);

            // search for the domain user
            UserPrincipal user = new UserPrincipal(p
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