accesseventhandler.php

<?php
 
 
namespace Bitrix\Main\Access\Auth;
 
 
use Bitrix\Iblock\SectionTable;
use Bitrix\Main\Access\AccessCode;
use Bitrix\Main\Loader;
use Bitrix\Main\UserAccessTable;
 
class AccessEventHandler
{
    public static function onBeforeIBlockSectionUpdate(&$fields)
    {
        if (
            !is_array($fields)
            || !array_key_exists('IBLOCK_ID', $fields)
            || !array_key_exists('UF_HEAD', $fields)
            || !array_key_exists('ID', $fields)
        )
        {
            return;
        }
 
        $iblockId = (int) \COption::GetOptionInt('intranet', 'iblock_structure');
        if (
            !$iblockId
            || (int) $fields['IBLOCK_ID'] !== $iblockId
        )
        {
            return;
        }
 
        $ufHead = (int) $fields['UF_HEAD'];
        if ($ufHead > 0)
        {
            (new AccessAuthProvider())->DeleteByUser($ufHead);
        }
 
        $accessCode = AccessCode::ACCESS_DIRECTOR . $fields['ID'];
        self::deleteByAccessCode($accessCode);
    }
 
    public static function onBeforeIBlockSectionDelete($sectionId)
    {
        $sectionId = (int) $sectionId;
        if ($sectionId < 1)
        {
            return;
        }
 
        $iblockId = (int) \COption::GetOptionInt('intranet', 'iblock_structure');
        if (!$iblockId)
        {
            return;
        }
 
        if (!Loader::includeModule('iblock'))
        {
            return;
        }
 
        $res = SectionTable::getList([
            'filter' => [
                '=IBLOCK_ID' => $iblockId,
                '=ID' => $sectionId
            ]
        ]);
        if(!$res->getSelectedRowsCount())
        {
            return;
        }
 
        $accessCode = AccessCode::ACCESS_DIRECTOR . $sectionId;
        self::deleteByAccessCode($accessCode);
    }
 
    public static function onBeforeIBlockSectionAdd(&$fields)
    {
        if (
            !is_array($fields)
            || !array_key_exists('IBLOCK_ID', $fields)
            || !array_key_exists('UF_HEAD', $fields)
            || !array_key_exists('IBLOCK_SECTION_ID', $fields)
        )
        {
            return;
        }
 
        $ufHead = (int) $fields['UF_HEAD'];
        if ($ufHead < 1)
        {
            return;
        }
        (new AccessAuthProvider())->DeleteByUser($ufHead);
    }
 
    private static function deleteByAccessCode(string $accessCode)
    {
        // find users by access codes
        $res = UserAccessTable::getList([
            'filter' => [
                '=ACCESS_CODE' => $accessCode
            ],
            'select' => ['USER_ID']
        ]);
 
        $provider = new AccessAuthProvider();
        while ($row = $res->fetch())
        {
            $provider->DeleteByUser($row['USER_ID']);
        }
    }
}