v1.0.0

PriviMetrics 2

← Changes All versions

131 lines · 4.2 KB

<?php
declare(strict_types=1);
require_once __DIR__ . '/functions.php';
if (!envIsInstalled()) {
pmEmitPixelAndExit();
}
require_once __DIR__ . '/storage.php';
header('Content-Type: image/gif');
header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');
header('Pragma: no-cache');
if (env('RESPECT_DNT', 'true') === 'true' && isDNTEnabled()) {
echo pmPixel();
exit;
}
$trackingCode = sanitize($_GET['t'] ?? '');
if ($trackingCode === '') {
echo pmPixel();
exit;
}
$pageUrl = sanitize($_GET['p'] ?? '');
$pageTitle = sanitize($_GET['title'] ?? '');
$referrer = sanitize($_GET['r'] ?? '');
$storage = new StorageManager();
$site = $storage->findSiteByTrackingCode($trackingCode);
if (!$site) {
echo pmPixel();
exit;
}
$domain = parse_url($pageUrl, PHP_URL_HOST) ?? '';
if (!checkDomainMatch($site['domain'], $domain, $site['restriction_mode'])) {
echo pmPixel();
exit;
}
$rateLimit = pmRateLimitFor($site['storage'] ?? 'xml');
if ($rateLimit['requests'] === 0) {
http_response_code(204);
exit;
}
if (!checkRateLimit('privimetrics_' . $trackingCode, $rateLimit['requests'], $rateLimit['window'])) {
http_response_code(204);
exit;
}
$parsedUrl = parse_url($pageUrl);
$cleanUrl = ($parsedUrl['scheme'] ?? 'http') . '://' . ($parsedUrl['host'] ?? '');
if (isset($parsedUrl['port'])) $cleanUrl .= ':' . $parsedUrl['port'];
$cleanUrl .= $parsedUrl['path'] ?? '';
$collectSearchQueries = pmFeatureEnabledForSite($site, 'search_queries');
$collectTrafficSources = pmFeatureEnabledForSite($site, 'traffic_sources');
$collectVisitorCountries = pmFeatureEnabledForSite($site, 'visitor_countries');
$searchQuery = '';
if ($collectSearchQueries && !empty($parsedUrl['query'])) {
parse_str($parsedUrl['query'], $queryParams);
foreach (['q', 'search', 'results'] as $param) {
if (!empty($queryParams[$param])) {
$searchQuery = sanitize($queryParams[$param]);
break;
}
}
}
$utmSource = $collectTrafficSources ? extractUtmSource($pageUrl) : '';
function pmIsExternalReferrer(string $referrer, string $pageUrl): bool
{
if ($referrer === '' || $pageUrl === '') return false;
$refHost = parse_url($referrer, PHP_URL_HOST);
$pageHost = parse_url($pageUrl, PHP_URL_HOST);
if (!$refHost || !$pageHost) return false;
$refHost = preg_replace('/^www\./i', '', strtolower($refHost));
$pageHost = preg_replace('/^www\./i', '', strtolower($pageHost));
return $refHost !== $pageHost;
}
function pmReferrerDomain(string $referrer): string
{
$host = parse_url($referrer, PHP_URL_HOST);
if (!$host) return '';
return preg_replace('/^www\./i', '', strtolower($host));
}
$trackIpParam = $_GET['track-ip'] ?? (env('TRACK_IP_DEFAULT', 'false') === 'true' ? 'true' : 'false');
$trackIp = !in_array(strtolower((string) $trackIpParam), ['0', 'false', 'no'], true);
if ($trackIp) {
$realIP = getClientIP();
$anonIP = '0.0.0.0';
if (filter_var($realIP, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
$parts = explode('.', $realIP);
$anonIP = ($parts[0] ?? '0') . '.' . ($parts[1] ?? '0') . '.X.X';
} elseif (filter_var($realIP, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
$parts = explode(':', $realIP);
$anonIP = ($parts[0] ?? '') . ':' . ($parts[1] ?? '') . ':XXXX:XXXX:XXXX:XXXX:XXXX:XXXX';
}
$geo = $collectVisitorCountries ? getCountryFromIP($realIP) : ['country' => 'Unknown', 'code' => 'XX'];
} else {
$anonIP = '0.0.0.0';
$geo = $collectVisitorCountries ? getCountryFromIP($anonIP) : ['country' => 'Unknown', 'code' => 'XX'];
}
$userHash = pmVisitorHash(getClientIP(), getUserAgent(), (string) $domain);
$hit = [
'user_hash' => $userHash,
'ip' => $anonIP,
'country' => $collectVisitorCountries ? ($geo['country'] ?? 'Unknown') : 'Unknown',
'country_code' => $collectVisitorCountries ? ($geo['code'] ?? 'XX') : 'XX',
'user_agent' => getUserAgent(),
'page_url' => $cleanUrl,
'page_title' => $pageTitle,
'search_query' => $searchQuery,
'referrer' => ($collectTrafficSources && pmIsExternalReferrer($referrer, $pageUrl)) ? pmReferrerDomain($referrer) : '',
'utm_source' => $utmSource,
];
$storage->saveHit($site, $hit);
echo pmPixel();
exit;