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Bugfix: Cloudflare caching hides IP address

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The support doesn work on Saturdays and Sundays, so some Friday requests can be answered on Monday.
Craigo(@c-white-outlook-com)
1 Post
Customers
March 13, 2024, 10:57

In storage.php

$ip = $_SERVER['HTTP_X_FORWARDED_FOR']; //"91.196.221.50, 172.71.174.239"
$this->user_ip = filter_var($ip, FILTER_VALIDATE_IP);

the problem is that HTTP_X_FORWARDED_FOR contains a comma seperated IP, and FILTER_VALIDATE_IP says this is invalid.

Suggested Fix:
if(!empty($_SERVER['HTTP_X_REAL_IP'])){
    $ip = $_SERVER['HTTP_X_REAL_IP'];
    if($splitPos = strpos($ip, ',')) $ip = substr($ip, 0, $splitPos);
} else if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
    $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
    if($splitPos = strpos($ip, ',')) $ip = substr($ip, 0, $splitPos);
} elseif(isset($_SERVER['REMOTE_ADDR'])) {
    $ip = $_SERVER['REMOTE_ADDR'];
} else {
    $ip='';
}
Last edited on March 13, 2024, 10:58 by Craigo · #1
Pablo Borysenco(@pavlo_borysenco)
34,196 Posts
March 13, 2024, 11:40

Hello

thank you for your cooperation

I passed this on to the developers

#2