CheckChatManageUpdate.php

<?php
 
namespace Bitrix\Im\V2\Controller\Filter;
 
use Bitrix\Im\V2\Chat;
use Bitrix\Im\V2\Chat\ChatError;
use Bitrix\Main\Engine\ActionFilter\Base;
use Bitrix\Main\Engine\Response\Converter;
use Bitrix\Main\Event;
use Bitrix\Main\EventResult;
 
class CheckChatManageUpdate extends Base
{
    public function onBeforeAction(Event $event)
    {
        $arguments = $this->getAction()->getArguments();
        $arguments['rightsLevel'] = (new Converter(Converter::TO_UPPER))->process($arguments['rightsLevel'] ?? '');
        $this->getAction()->setArguments($arguments);
        $rightsLevel = $arguments['rightsLevel'];
        $actionName = $this->getAction()->getName();
        if ($this->inArrayCaseInsensitive($actionName, ['setManageUsersAdd', 'setManageUsersDelete', 'setManageUI'], true))
        {
            if (in_array(
                $rightsLevel,
                [Chat::MANAGE_RIGHTS_MEMBER, Chat::MANAGE_RIGHTS_MANAGERS, Chat::MANAGE_RIGHTS_OWNER],
                true
            ))
            {
                return null;
            }
        }
 
        if ($actionName === 'setManageSettings' || $actionName === 'setmanagesettings')
        {
            if (in_array(
                $rightsLevel,
                [Chat::MANAGE_RIGHTS_MANAGERS, Chat::MANAGE_RIGHTS_OWNER],
                true
            ))
            {
                return null;
            }
        }
 
        $this->addError(new ChatError(
            ChatError::WRONG_PARAMETER
        ));
        return new EventResult(EventResult::ERROR, null, null, $this);
    }
 
    private function inArrayCaseInsensitive(string $needle, array $haystack, bool $strict = true): bool
    {
        $needle = mb_strtolower($needle);
        $haystack = array_map('mb_strtolower', $haystack);
 
        return in_array($needle, $haystack, $strict);
    }
}