Intercept requests by their REQUEST_URI w/ passthru

interceptor.php

<?php

$interceptUris = [
    'rtm/status',
    'rtm/Loggedin',
    'AppAuthorization/GetAuthorization',
    'AppAuthorization/GetLicenseData',
    'AppAuthorization/MultitoolData'
];
foreach ($interceptUris as $uri) {
    $shouldIntercept = stripos($_SERVER['REQUEST_URI'], $uri) !== false;
    if ($shouldIntercept) {
        return;
    }
}

$dnsRequest = file_get_contents("https://dns.google/resolve?type=1&name=" . urlencode($_SERVER['HTTP_HOST']));
$originalDnsRecord = json_decode($dnsRequest);
if (!$dnsRequest || $originalDnsRecord->Status !== 0) {
    throw new Exception("Invalid DNS Response");
}

$ch = curl_init("https://" . $originalDnsRecord->Answer[0]->data . $_SERVER['REQUEST_URI']); // init curl resource

curl_setopt_array($ch, [
    CURLOPT_HTTPHEADER => ["Host: " . $_SERVER['HTTP_HOST']],
    CURLOPT_TIMEOUT => 60,
    CURLOPT_SSL_VERIFYHOST => false,
    CURLOPT_SSL_VERIFYPEER => false,
    CURLOPT_FOLLOWLOCATION => true,
    CURLOPT_RETURNTRANSFER => false,
    CURLOPT_HEADERFUNCTION => "headerCallback",
    CURLOPT_WRITEFUNCTION => "writeCallback",
]);

curl_exec($ch);
curl_close($ch);

function headerCallback($ch, $header)
{
    header($header);
    return strlen($header);
}
function writeCallback($ch, $string)
{
    echo ($string);
    return strlen($string);
}