/// <summary>
/// determines whether a user has a permission
/// </summary>
/// <param name="service">service user is registered to</param>
/// <param name="username">name of user</param>
/// <param name="permission">permission to check</param>
/// <returns>true if user has permission, false otherwise</returns>
public bool HasPermission(string service, string username, string permission)
{
return(HasPermission(usermodule.GetUserID(service, username), permission));
}
