/**
* check whether the expression matches an address
*
* @param AddressInterface $address
* @return boolean
*/
public function matches(AddressInterface $address)
{
$addrChunks = $address->getChunks();
$exprChunks = preg_split('/[.:]/', $this->expression);
if (count($exprChunks) !== count($addrChunks)) {
throw new \UnexpectedValueException('Address and expression do not contain the same amount of chunks. Did you mix IPv4 and IPv6?');
}
foreach ($exprChunks as $idx => $exprChunk) {
$addrChunk = $addrChunks[$idx];
if (strpos($exprChunk, '*') === false) {
// It's okay if the expression contains '.0.' and the IP contains '.000.',
// we just care for the numerical value (and it's also okay to interprete
// IPv4 chunks as hex values, as long as we interprete both as hex).
if (hexdec($addrChunk) !== hexdec($exprChunk)) {
return false;
}
} else {
$exprChunk = str_replace('*', '[0-9a-f]+?', $exprChunk);
if (!preg_match('/^' . $exprChunk . '$/', $addrChunk)) {
return false;
}
}
}
return true;
}
/**
* check whether the expression matches an address
*
* @param AddressInterface $address
* @return boolean
*/
public function matches(AddressInterface $address)
{
$lower = $this->lower->getExpanded();
$addr = $address->getExpanded();
// http://stackoverflow.com/questions/594112/matching-an-ip-to-a-cidr-mask-in-php5
if ($address instanceof IPv4 && $this->lower instanceof IPv4) {
$addr = ip2long($addr);
$lower = ip2long($lower);
$netmask = -1 << 32 - $this->netmask & ip2long('255.255.255.255');
$lower &= $netmask;
return ($addr & $netmask) == $lower;
} elseif ($address instanceof IPv6 && $this->lower instanceof IPv6) {
$lower = unpack('n*', inet_pton($lower));
$addr = unpack('n*', inet_pton($addr));
for ($i = 1; $i <= ceil($this->netmask / 16); $i++) {
$left = $this->netmask - 16 * ($i - 1);
$left = $left <= 16 ? $left : 16;
$mask = ~(0xffff >> $left) & 0xffff;
if (($addr[$i] & $mask) != ($lower[$i] & $mask)) {
return false;
}
}
return true;
}
throw new \LogicException('Can only compare IPs of the same version.');
}
/**
* check whether the expression matches an address
*
* @param AddressInterface $address
* @return boolean
*/
public function matches(AddressInterface $address)
{
return $address->getCompact() === $this->expression;
}
