note 108812 added to function.ip2long
| From: | replay111 at tlen dot pl | Date: | Sat, 26 May 2012 13:28:43 +0000 |
| Subject: | note 108812 added to function.ip2long | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-188249@lists.php.net to get a copy of this message | ||
Hi,
based on examples above I have mixed class IPFilter with netMatch function wich gives me complete
class for IP4 check including CIDR IP format:
class IP4Filter {
private static $_IP_TYPE_SINGLE = 'single';
private static $_IP_TYPE_WILDCARD = 'wildcard';
private static $_IP_TYPE_MASK = 'mask';
private static $_IP_TYPE_CIDR = 'CIDR';
private static $_IP_TYPE_SECTION = 'section';
private $_allowed_ips = array();
public function __construct($allowed_ips) {
$this->_allowed_ips = $allowed_ips;
}
public function check($ip, $allowed_ips = null) {
$allowed_ips = $allowed_ips ? $allowed_ips : $this->_allowed_ips;
foreach ($allowed_ips as $allowed_ip) {
$type = $this->_judge_ip_type($allowed_ip);
$sub_rst = call_user_func(array($this, '_sub_checker_' . $type), $allowed_ip,
$ip);
if ($sub_rst) {
return true;
}
}
return false;
}
private function _judge_ip_type($ip) {
if (strpos($ip, '*')) {
return self :: $_IP_TYPE_WILDCARD;
}
if (strpos($ip, '/')) {
$tmp = explode('/', $ip);
if (strpos($tmp[1], '-')) {
return self :: $_IP_TYPE_MASK;
} else {
return self :: $_IP_TYPE_CIDR;
}
}
if (strpos($ip, '-')) {
return self :: $_IP_TYPE_SECTION;
}
if (ip2long($ip)) {
return self :: $_IP_TYPE_SINGLE;
}
return false;
}
private function _sub_checker_single($allowed_ip, $ip) {
return (ip2long($allowed_ip) == ip2long($ip));
}
private function _sub_checker_wildcard($allowed_ip, $ip) {
$allowed_ip_arr = explode('.', $allowed_ip);
$ip_arr = explode('.', $ip);
for ($i = 0; $i < count($allowed_ip_arr); $i++) {
if ($allowed_ip_arr[$i] == '*') {
return true;
} else {
if (false == ($allowed_ip_arr[$i] == $ip_arr[$i])) {
return false;
}
}
}
}
private function _sub_checker_mask($allowed_ip, $ip) {
list($allowed_ip_ip, $allowed_ip_mask) = explode('/', $allowed_ip);
$begin = (ip2long($allowed_ip_ip) & ip2long($allowed_ip_mask)) + 1;
$end = (ip2long($allowed_ip_ip) | (~ ip2long($allowed_ip_mask))) + 1;
$ip = ip2long($ip);
return ($ip >= $begin && $ip <= $end);
}
private function _sub_checker_section($allowed_ip, $ip) {
list($begin, $end) = explode('-', $allowed_ip);
$begin = ip2long($begin);
$end = ip2long($end);
$ip = ip2long($ip);
return ($ip >= $begin && $ip <= $end);
}
private function _sub_checker_CIDR($CIDR, $IP) {
list ($net, $mask) = explode('/', $CIDR);
return ( ip2long($IP) & ~((1 << (32 - $mask)) - 1) ) == ip2long($net);
}
}
For me this code works great, so I wanna thank to all You guys!!!
----
Server IP: 69.147.83.197
Probable Submitter: 77.253.16.136
----
Manual Page -- http://www.php.net/manual/en/function.ip2long.php
Edit -- https://master.php.net/note/edit/108812
Del: integrated -- https://master.php.net/note/delete/108812/integrated
Del: useless -- https://master.php.net/note/delete/108812/useless
Del: bad code -- https://master.php.net/note/delete/108812/bad+code
Del: spam -- https://master.php.net/note/delete/108812/spam
Del: non-english -- https://master.php.net/note/delete/108812/non-english
Del: in docs -- https://master.php.net/note/delete/108812/in+docs
Del: other reasons-- https://master.php.net/note/delete/108812
Reject -- https://master.php.net/note/reject/108812
Search -- https://master.php.net/manage/user-notes.php