Initiator.php

<?php
 
namespace Bitrix\MessageService\Providers\Edna\SMS\Old;
 
use Bitrix\MessageService\Providers\Constants\InternalOption;
use Bitrix\MessageService\Providers\Edna\SMS\ExternalSender;
 
class Initiator extends \Bitrix\MessageService\Providers\Edna\Initiator
{
    public function getFromList(): array
    {
        $fromList = [];
        if (!$this->supportChecker->canUse())
        {
            return $fromList;
        }
 
        $externalSender = new ExternalSender(
            $this->optionManager->getOption(InternalOption::API_KEY, ''),
            Constants::API_ENDPOINT
        );
        $apiResult = $externalSender->callExternalMethod('smsSubject/');
        if (!$apiResult->isSuccess())
        {
            return $fromList;
        }
 
        foreach ($apiResult->getData() as $subjectInfo)
        {
            if ($subjectInfo['active'])
            {
                $fromList[] = [
                    'id' => $subjectInfo['subject'],
                    'name' => $subjectInfo['subject'],
                ];
            }
        }
 
        return $fromList;
    }
 
    public function isCorrectFrom($from): bool
    {
        $fromList = $this->getFromList();
        foreach ($fromList as $item)
        {
            if ($from === $item['id'])
            {
                return true;
            }
        }
        return false;
    }
 
}