kalanis\kw_bans\Traits\TExpandIp::expandIP()

Complexity

Conditions	8
Paths	26

Size

Total Lines	34
Code Lines	23

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	23
CRAP Score	8

Importance

Changes

0

<?php
    public function expandIP(string $knownIp): Ip
    {
        $affectedBits = 0; // aka ignore last bits...
        $subnetMaskPosition = strpos($knownIp, IIpTypes::MASK_SEPARATOR);
        if (false !== $subnetMaskPosition) {
            $affectedBits = intval(substr($knownIp, $subnetMaskPosition + 1));
            $knownIp = substr($knownIp, 0, $subnetMaskPosition);
        }

        if (empty($this->delimiter)) {
            throw new BanException($this->getIKbLang()->ikbBadIpParsingNoDelimiter());
        }

        $shortenedPart = strpos($knownIp, $this->delimiter . $this->delimiter);
        if (false !== $shortenedPart) {
            $beginPart = (0 == $shortenedPart) ? [] : (array) explode($this->delimiter, substr($knownIp, 0, $shortenedPart));
            $cutEnd = $shortenedPart + strlen($this->delimiter . $this->delimiter);
            $endPart = (strlen($knownIp) == $cutEnd) ? [] : (array) explode($this->delimiter, substr($knownIp, $cutEnd));
            $unfilledBlocks = $this->blocks - (count($beginPart) + count($endPart));
            if (0 > $unfilledBlocks) {
                throw new BanException($this->getIKbLang()->ikbInvalidNumOfBlocksTooMany($knownIp));
            }
            $ipInArray = array_merge($beginPart, array_fill(0, $unfilledBlocks, '0'), $endPart);
        } else {
            $ipInArray = (array) explode($this->delimiter, $knownIp);
        }

        if ($this->blocks != count($ipInArray)) {
            throw new BanException($this->getIKbLang()->ikbInvalidNumOfBlocksAmount($knownIp));
        }

        $ip = clone $this->getBasicIp();
        $ip->setData($this->type, array_map('strval', $ipInArray), $affectedBits);
        return $ip;
    }