CIBlockRightsStorage::_get_section

function _get_section()
{
	if(!isset($this->arSection))
	{
		if($this->SECTION_ID > 0)
		{
			$rsSection = CIBlockSection::GetList(array(), array(
				"IBLOCK_ID" => $this->IBLOCK_ID,
				"=ID" => $this->SECTION_ID,
				"CHECK_PERMISSIONS" => "N",
			), false, array("LEFT_MARGIN", "RIGHT_MARGIN"));
			$this->arSection = $rsSection->Fetch();

			//We have to resort sections in some cases
			if(
				$this->arSection
				&& (
					$this->arSection["LEFT_MARGIN"] <= 0
					|| $this->arSection["RIGHT_MARGIN"] <= 0
				)
			)
			{
				CIBlockSection::Resort($this->IBLOCK_ID);

				$rsSection = CIBlockSection::GetList(array(), array(
					"IBLOCK_ID" => $this->IBLOCK_ID,
					"=ID" => $this->SECTION_ID,
					"CHECK_PERMISSIONS" => "N",
				), false, array("LEFT_MARGIN", "RIGHT_MARGIN"));
				$this->arSection = $rsSection->Fetch();
			}
		}
		else
		{
			$this->arSection = false;
		}
	}
	return $this->arSection;
}