responseparser.php

<?php
 
namespace Bitrix\Mail\Helper\Mailbox;
 
class ResponseParser
{
    public function getOldToNewUidsMap($copyUid)
    {
        $uIds = [];
        $dirUidValidity = '';
        if ($responseLine = mb_stristr($copyUid, 'COPYUID'))
        {
            $data = explode(' ', mb_stristr($copyUid, 'COPYUID'));
            if (isset($data[1]) && isset($data[2]) && isset($data[3]))
            {
                $dirUidValidity = $data[1];
                $idsFrom = $this->getIdsSet($data[2]);
                $idsTo = $this->getIdsSet(str_replace(']', '', $data[3]));
                $uIds = array_combine($idsFrom, $idsTo);
            }
        }
 
        return [
            'uids' => $uIds,
            'dirUid' => $dirUidValidity,
        ];
    }
 
    private function getIdsSet($line)
    {
        $idsFrom = [];
        $idsFromParsed = explode(',', $line);
        foreach ($idsFromParsed as $_index => $_idFrom)
        {
            $sequence = explode(':', $_idFrom);
            if (count($sequence) == 2)
            {
                $idsFrom = array_merge($idsFrom, range(min($sequence[0], $sequence[1]), max($sequence[0], $sequence[1]), 1));
            }
            elseif (count($sequence) == 1)
            {
                $idsFrom[] = intval($sequence[0]);
            }
        }
        return $idsFrom;
    }
}