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<?php
if (!isset($_GET['q']) || !isset($_GET['i'])) {
header("Location: /");
die();
}
$_GET['q'] = strtolower(substr($_GET['q'], 0, 200));
$_GET['q'] = preg_replace("/[^A-Za-z0-9 ]/", '', preg_replace("/[\.]/", ' ', $_GET['q']));
$data = json_decode(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/db.json"), true);
if ($_GET['i'] !== "_off" && isset($data["entries"][$_GET['i']])) {
$icdom = explode("/", $data["entries"][$_GET['i']]["url"])[2];
if (substr($icdom, 0, 4) === "www.") {
$icdom = substr($icdom, 4);
}
} elseif ($_GET['i'] === "_off") {
$domains = [];
foreach ($data["entries"] as $id => $entry) {
$domain = explode("/", $entry["url"])[2];
$sim = similar_text($domain, $_GET['q'], $perc);
if (substr($domain, 0, 4) === "www.") {
$domainstr = substr($domain, 4);
} else {
$domainstr = $domain;
}
$domains[] = [
"id" => $id,
"url" => "https://" . $domain . "/",
"domain" => $domainstr,
"relevance" => $perc / 50 - 1
];
}
usort($domains, function($a, $b) {
return $a['relevance'] <=> $b['relevance'];
});
$domains = array_reverse($domains);
$icdom = $domains[0]['domain'];
}
header("Location: https://external-content.duckduckgo.com/ip3/" . $icdom . ".ico");
die();
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