/**
* Try get the range instance starting from its string representation.
*
* @param string|mixed $range
*
* @return static|null
*/
public static function fromString($range)
{
$result = null;
if (is_string($range)) {
$parts = explode('/', $range);
if (count($parts) === 2) {
$address = Factory::addressFromString($parts[0]);
if ($address !== null) {
if (preg_match('/^[0-9]{1,9}$/', $parts[1])) {
$networkPrefix = @intval($parts[1]);
if ($networkPrefix >= 0) {
$addressBytes = $address->getBytes();
$totalBytes = count($addressBytes);
$numDifferentBits = $totalBytes * 8 - $networkPrefix;
if ($numDifferentBits >= 0) {
$numSameBytes = $networkPrefix >> 3;
$sameBytes = array_slice($addressBytes, 0, $numSameBytes);
$differentBytesStart = $totalBytes === $numSameBytes ? array() : array_fill(0, $totalBytes - $numSameBytes, 0);
$differentBytesEnd = $totalBytes === $numSameBytes ? array() : array_fill(0, $totalBytes - $numSameBytes, 255);
$startSameBits = $networkPrefix % 8;
if ($startSameBits !== 0) {
$varyingByte = $addressBytes[$numSameBytes];
$differentBytesStart[0] = $varyingByte & bindec(str_pad(str_repeat('1', $startSameBits), 8, '0', STR_PAD_RIGHT));
$differentBytesEnd[0] = $differentBytesStart[0] + bindec(str_repeat('1', 8 - $startSameBits));
}
$result = new static(Factory::addressFromBytes(array_merge($sameBytes, $differentBytesStart)), Factory::addressFromBytes(array_merge($sameBytes, $differentBytesEnd)), $networkPrefix);
}
}
}
}
}
}
return $result;
}
/**
* Try get the range instance starting from its string representation.
*
* @param string|mixed $range
*
* @return static|null
*/
public static function fromString($range)
{
$result = null;
$address = Factory::addressFromString($range);
if ($address !== null) {
$result = new static($address);
}
return $result;
}
/**
* @param string $ipList
*
* @return bool
*/
protected function isUserIpInList($ipList)
{
$result = false;
if ($ipList !== '') {
$ip = $this->getCurrentUserIP();
if ($ip !== null) {
foreach (explode('|', $ipList) as $rangeString) {
$range = IPFactory::rangeFromString($rangeString);
if ($range !== null && $range->contains($ip)) {
$result = true;
break;
}
}
}
}
return $result;
}
