CMedialib::GetAccessPermissionsArray

static function GetAccessPermissionsArray($collectionId = 0, $oCollections = false)
{
	static $arAllTasks;
	if (is_array($arAllTasks[$collectionId] ?? null))
		return $arAllTasks[$collectionId];

	$col = $oCollections[$collectionId] ?? [];
	$col['PARENT_ID'] = $col['PARENT_ID'] ?? null;
	$arCols = array();
	$resTask = array();

	if ($col || $collectionId == 0)
	{
		$arCols[] = $collectionId;
		if (intval($col['PARENT_ID']) > 0)
		{
			$col_ = $col;
			while($col_ && intval($col_['PARENT_ID']) > 0)
			{
				$arCols[] = $col_['PARENT_ID'];
				$col_ = $oCollections[$col_['PARENT_ID']];
			}
		}
		$arCols[] = 0;
		$arPerm = CMedialib::_GetAccessPermissions($arCols);

		for($i = count($arCols); $i >= 0; $i--)
		{
			$colId = $arCols[$i] ?? null;
			if (is_array($arPerm[$colId] ?? null))
			{
				for ($j = 0, $n = count($arPerm[$colId]); $j < $n; $j++)
					$resTask[$arPerm[$colId][$j]['GROUP_ID']] = $arPerm[$colId][$j]['TASK_ID'];
			}
		}
	}

	if (!is_array($arAllTasks))
		$arAllTasks = array();
	$arAllTasks[$collectionId] = $resTask;

	return $resTask;
}