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Pinga 2025-04-29 12:00:28 +03:00
parent ebe8982b00
commit 3d3ffe46d5
3 changed files with 22 additions and 10 deletions
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28
epp/src/helpers.php
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@ -1038,20 +1038,28 @@ function ipMatches($ip, $cidr) {
if (strpos($cidr, '/') === false) {
return false; // invalid CIDR
}
list($subnet, $mask) = explode('/', $cidr);
if (!is_numeric($mask) || $mask < 0 || $mask > 32) {
return false; // invalid mask
}
$ipBin = inet_pton($ip);
$subnetBin = inet_pton($subnet);
$ipLong = ip2long($ip);
$subnetLong = ip2long($subnet);
if ($ipLong === false || $subnetLong === false) {
if ($ipBin === false || $subnetBin === false) {
return false; // invalid IP
}
$maskLong = -1 << (32 - (int)$mask);
$ipLen = strlen($ipBin) * 8; // 32 for IPv4, 128 for IPv6
return ($ipLong & $maskLong) === ($subnetLong & $maskLong);
if (!is_numeric($mask) || $mask < 0 || $mask > $ipLen) {
return false; // invalid mask
}
$maskBin = str_repeat("f", intval($mask / 4));
if ($mask % 4) {
$bits = $mask % 4;
$maskBin .= dechex(bindec(str_repeat('1', $bits) . str_repeat('0', 4 - $bits)));
}
$maskBin = str_pad($maskBin, $ipLen / 4, '0'); // pad to full length
$maskBin = pack("H*", $maskBin);
return ($ipBin & $maskBin) === ($subnetBin & $maskBin);
}