public static bool HasWritePermisssion(this DirectoryInfoBase dirInfo)
{
try
{
var currentUserSecurityIdsArray = GetCurrentUserSecurityIdentifierArray();
var directorySecurity = dirInfo.GetAccessControl();
foreach (AuthorizationRule rule in directorySecurity.GetAccessRules(true, true, typeof(SecurityIdentifier)))
{
if (currentUserSecurityIdsArray.Contains(rule.IdentityReference.Value))
{
FileSystemAccessRule rights = ((FileSystemAccessRule)rule);
if (rights.AccessControlType == AccessControlType.Allow)
{
if (rights.FileSystemRights == (rights.FileSystemRights | FileSystemRights.Modify))
{
return(true);
}
}
}
}
return(false);
}
catch
{
return(false);
}
}