Cache ipCheck
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@ -18,6 +18,8 @@ namespace Symfony\Component\HttpFoundation;
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*/
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*/
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class IpUtils
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class IpUtils
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{
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{
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private static $checkedIps = array();
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/**
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/**
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* This class should not be instantiated.
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* This class should not be instantiated.
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*/
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*/
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@ -61,26 +63,31 @@ class IpUtils
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*/
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*/
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public static function checkIp4($requestIp, $ip)
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public static function checkIp4($requestIp, $ip)
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{
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{
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$cacheKey = $requestIp.'-'.$ip;
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if (isset(self::$checkedIps[$cacheKey])) {
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return self::$checkedIps[$cacheKey];
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}
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if (!filter_var($requestIp, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
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if (!filter_var($requestIp, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
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return false;
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return self::$checkedIps[$cacheKey] = false;
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}
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}
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if (false !== strpos($ip, '/')) {
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if (false !== strpos($ip, '/')) {
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list($address, $netmask) = explode('/', $ip, 2);
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list($address, $netmask) = explode('/', $ip, 2);
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if ($netmask === '0') {
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if ($netmask === '0') {
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return filter_var($address, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4);
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return self::$checkedIps[$cacheKey] = filter_var($address, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4);
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}
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}
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if ($netmask < 0 || $netmask > 32) {
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if ($netmask < 0 || $netmask > 32) {
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return false;
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return self::$checkedIps[$cacheKey] = false;
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}
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}
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} else {
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} else {
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$address = $ip;
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$address = $ip;
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$netmask = 32;
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$netmask = 32;
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}
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}
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return 0 === substr_compare(sprintf('%032b', ip2long($requestIp)), sprintf('%032b', ip2long($address)), 0, $netmask);
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return self::$checkedIps[$cacheKey] = 0 === substr_compare(sprintf('%032b', ip2long($requestIp)), sprintf('%032b', ip2long($address)), 0, $netmask);
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}
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}
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/**
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/**
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@ -100,6 +107,11 @@ class IpUtils
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*/
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*/
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public static function checkIp6($requestIp, $ip)
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public static function checkIp6($requestIp, $ip)
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{
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{
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$cacheKey = $requestIp.'-'.$ip;
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if (isset(self::$checkedIps[$cacheKey])) {
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return self::$checkedIps[$cacheKey];
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}
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if (!((extension_loaded('sockets') && defined('AF_INET6')) || @inet_pton('::1'))) {
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if (!((extension_loaded('sockets') && defined('AF_INET6')) || @inet_pton('::1'))) {
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throw new \RuntimeException('Unable to check Ipv6. Check that PHP was not compiled with option "disable-ipv6".');
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throw new \RuntimeException('Unable to check Ipv6. Check that PHP was not compiled with option "disable-ipv6".');
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}
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}
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@ -108,7 +120,7 @@ class IpUtils
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list($address, $netmask) = explode('/', $ip, 2);
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list($address, $netmask) = explode('/', $ip, 2);
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if ($netmask < 1 || $netmask > 128) {
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if ($netmask < 1 || $netmask > 128) {
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return false;
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return self::$checkedIps[$cacheKey] = false;
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}
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}
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} else {
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} else {
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$address = $ip;
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$address = $ip;
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@ -119,7 +131,7 @@ class IpUtils
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$bytesTest = unpack('n*', @inet_pton($requestIp));
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$bytesTest = unpack('n*', @inet_pton($requestIp));
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if (!$bytesAddr || !$bytesTest) {
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if (!$bytesAddr || !$bytesTest) {
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return false;
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return self::$checkedIps[$cacheKey] = false;
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}
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}
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for ($i = 1, $ceil = ceil($netmask / 16); $i <= $ceil; ++$i) {
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for ($i = 1, $ceil = ceil($netmask / 16); $i <= $ceil; ++$i) {
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@ -127,10 +139,10 @@ class IpUtils
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$left = ($left <= 16) ? $left : 16;
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$left = ($left <= 16) ? $left : 16;
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$mask = ~(0xffff >> $left) & 0xffff;
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$mask = ~(0xffff >> $left) & 0xffff;
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if (($bytesAddr[$i] & $mask) != ($bytesTest[$i] & $mask)) {
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if (($bytesAddr[$i] & $mask) != ($bytesTest[$i] & $mask)) {
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return false;
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return self::$checkedIps[$cacheKey] = false;
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}
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}
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}
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}
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return true;
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return self::$checkedIps[$cacheKey] = true;
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}
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}
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}
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}
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