Do we have any other code monkies in here?

Every once in a while I thought I might post some code tips.  The following code will check for read ACLs on a file in C#.  We had a situation come up at work where one of the developers was having a problem reading one of our log files with user permissions.  It turns out he was attempting to open the file using a full control access flag, but I thought this little piece of code could come in handy.

If you have any questions about the code, feel free to post in the comments and I will do my best to answer all the questions.  If there are any other code bits you want to see, let me know and I'll put some write-ups together.

using System;

using System.IO;

using System.Security;

using System.Security.Principal;

using System.Security.AccessControl;

using System.Collections.Generic;

using System.Text;

namespace TestReader

{

    class Program

    {

        static void Main(string[] args)

        {

            string myPath = @"C:temptest.txt";

            string[] fileRead;

            try

            {

                if (File.Exists(myPath))

                {

                    if (CanRead(myPath))

                    {

                        File.OpenRead(myPath);

                        fileRead = File.ReadAllLines(myPath);

                        foreach (string line in fileRead)

                        {

                            Console.WriteLine(line);

                        }

                    }

                    else

                    {

                        Console.WriteLine("No permissions to read the file.");

                    }

                }

            }

            catch (Exception ex)

            {

                Console.WriteLine(ex.Message);

            }

        }

        private static bool CanRead(string fname)

        {

            try

            {

                WindowsIdentity WinIdentity = WindowsIdentity.GetCurrent();

                WindowsPrincipal WinPrincipal = new WindowsPrincipal(WinIdentity);

                bool AllowRead = false;

                FileInfo fi = new FileInfo(fname);

                FileSecurity sec = fi.GetAccessControl();

                foreach (FileSystemAccessRule rule in sec.GetAccessRules(true, true, typeof(NTAccount)))

                {

                    if (WinPrincipal.IsInRole(rule.IdentityReference.Value))

                    {

                        if (((int)rule.FileSystemRights & (int)FileSystemRights.Read) > 0)

                        {

                            if (rule.AccessControlType == AccessControlType.Allow)

                            {

                                AllowRead = true;

                            }

                            else if (rule.AccessControlType == AccessControlType.Deny)

                            {

                                return false;

                            }

                        }

                    }

                }

                return AllowRead;

            }

            catch (Exception ex)

            {

                Console.WriteLine(ex.Message);

                return false;

            }

        }

    }

}