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feat: add isPrivateIP helper, fix getUserIP and addToLog

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This commit is contained in:
Chris
2026-04-20 21:44:32 +02:00
parent 15720489ba
commit 75ead2f5ad
1 changed files with 34 additions and 20 deletions
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34
src/helpers.php
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@@ -11,25 +11,39 @@ function renderTemplate($templatename,$variables=[],$basepath=ROOT.'/src')
include($basepath . DS . 'templates' . DS . $templatename);
$rendered = ob_get_contents();
ob_end_clean();
return $rendered;
}
function addToLog($data)
function addToLog(string $data): void
{
$data = str_replace(["\n", "\r", "\t"], ' ', $data);
$fp = fopen(ROOT . DS . 'logs' . DS . 'app.log', 'a');
fwrite($fp, date("d.m.y H:i") . "\t" . $data . "\n");
fclose($fp);
}
function getUserIP()
function getUserIP(): string
{
if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
$ip = $_SERVER['HTTP_CLIENT_IP'];
} elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
} else {
$ip = $_SERVER['REMOTE_ADDR'];
if (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
return trim(explode(',', $_SERVER['HTTP_X_FORWARDED_FOR'])[0]);
return $_SERVER['REMOTE_ADDR'];
}
return $ip;
function isPrivateIP(string $ip): bool
{
if (filter_var($ip, FILTER_VALIDATE_IP) === false) return true;
$long = ip2long($ip);
if ($long === false) return true;
foreach ([
[ip2long('127.0.0.0'), 0xFF000000], // 127.0.0.0/8 loopback
[ip2long('10.0.0.0'), 0xFF000000], // 10.0.0.0/8 RFC1918
[ip2long('172.16.0.0'), 0xFFF00000], // 172.16.0.0/12 RFC1918
[ip2long('192.168.0.0'), 0xFFFF0000], // 192.168.0.0/16 RFC1918
[ip2long('169.254.0.0'), 0xFFFF0000], // 169.254.0.0/16 link-local/metadata
] as [$base, $mask]) {
if (($long & $mask) === ($base & $mask)) return true;
}
return false;
}