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Detects IPv4 and IPv6 private networks (#192)

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mildis 2019-01-14 16:14:57 +01:00 committed by Federico Dossena
parent 53ca58db03
commit eb390fd55e
1 changed files with 22 additions and 2 deletions
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24
getIP.php
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@ -21,11 +21,31 @@ if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
$ip = preg_replace("/^::ffff:/", "", $ip);
if ($ip == "::1") { // ::1/128 is the only localhost ipv6 address. there are no others, no need to strpos this
echo json_encode(['processedString' => $ip . " - localhost ipv6 access", 'rawIspInfo' => ""]);
echo json_encode(['processedString' => $ip . " - localhost IPv6 access", 'rawIspInfo' => ""]);
die();
}
if (stripos($ip, 'fe80:') === 0) { // simplified IPv6 link-local address (should match fe80::/10)
echo json_encode(['processedString' => $ip . " - link-local IPv6 access", 'rawIspInfo' => ""]);
die();
}
if (strpos($ip, '127.') === 0) { //anything within the 127/8 range is localhost ipv4, the ip must start with 127.0
echo json_encode(['processedString' => $ip . " - localhost ipv4 access", 'rawIspInfo' => ""]);
echo json_encode(['processedString' => $ip . " - localhost IPv4 access", 'rawIspInfo' => ""]);
die();
}
if (strpos($ip, '10.') === 0) { // 10/8 private IPv4
echo json_encode(['processedString' => $ip . " - private IPv4 access", 'rawIspInfo' => ""]);
die();
}
if (preg_match('/^172\.(1[6-9]|2\d|3[01])\./', $ip) === 1) { // 172.16/12 private IPv4
echo json_encode(['processedString' => $ip . " - private IPv4 access", 'rawIspInfo' => ""]);
die();
}
if (strpos($ip, '192.168.') === 0) { // 192.168/16 private IPv4
echo json_encode(['processedString' => $ip . " - private IPv4 access", 'rawIspInfo' => ""]);
die();
}
if (strpos($ip, '169.254.') === 0) { // IPv4 link-local
echo json_encode(['processedString' => $ip . " - link-local IPv4 access", 'rawIspInfo' => ""]);
die();
}