public static bool IsADomainAccount(NTAccount userAccount)
{
if (userAccount == null)
{
return(false);
}
SecurityIdentifier sid;
try
{
sid = UserAccountHelper.GetSecurityIdentifier(userAccount);
}
catch (Exception e)
{
return(false);
}
if (UserAccountHelper.IsLocalAccount(sid) || (UserAccountHelper.IsBuiltInGroup(sid)))
{
return(false);
}
return(true);
}
public static SecurityIdentifier GetSecurityIdentifier(string accountName)
{
AppAssert.Assert(!string.IsNullOrEmpty(accountName));
// Check if the string is null or empty - these are not valid account names
if (string.IsNullOrEmpty(accountName))
{
throw new IdentityNotMappedException();
}
// verify that the entered string is a valid account name
return(UserAccountHelper.GetSecurityIdentifier(new NTAccount(accountName.Trim())));
}