from filemtime() instead of today's date.
*/
private const STATIC_PAGE_VIEWS = [
'' => '/views/auth/login.php',
'login' => '/views/auth/login.php',
'register' => '/views/auth/register.php',
'support' => '/views/pages/support.php',
'contact' => '/views/pages/contact.php',
'forgot-password' => '/views/auth/forgot_password.php',
'terms' => '/views/pages/terms.php',
'privacy' => '/views/pages/privacy.php',
'home' => '/views/home/index.php',
'profile' => '/views/profile/index.php',
'literature' => '/views/literature/index.php',
'lists' => '/views/lists/index.php',
'collections' => '/views/collections/index.php',
];
public function index(): void
{
header('Content-Type: application/xml; charset=utf-8');
$baseUrl = rtrim(APP_URL, '/');
$xml = '' . PHP_EOL;
$xml .= 'lastModifiedAll();
} catch (Throwable $e) {
$articlesLastMod = null;
}
$xml .= $this->generateUrlNode($baseUrl . '/articles', '0.9', $articlesLastMod ? date('Y-m-d', strtotime($articlesLastMod)) : null);
// Marketplace landing — individual listings live in the dedicated marketplace sitemap.
try {
require_once APP_ROOT . '/models/Listing.php';
$marketplaceLastMod = (new Listing())->lastModified();
} catch (Throwable $e) {
$marketplaceLastMod = null;
}
$xml .= $this->generateUrlNode($baseUrl . '/marketplace', '0.9', $marketplaceLastMod ? date('Y-m-d', strtotime($marketplaceLastMod)) : null);
$staticPages = [
'' => '1.0',
'support' => '0.8',
'contact' => '0.8',
'terms' => '0.5',
'privacy' => '0.5',
];
foreach ($staticPages as $path => $priority) {
$url = $path ? $baseUrl . '/' . $path : $baseUrl;
$lastmod = $this->staticPageLastMod($path);
$xml .= ENABLE_HREFLANG
? $this->generateMultilingualUrlNode($url, $path, $priority, Lang::supportedLocales(), $lastmod)
: $this->generateUrlNode($url, $priority, $lastmod);
}
$xml .= '';
echo $xml;
exit;
}
/**
* Sitemap index linking the main sitemap and the articles sitemap.
*/
public function sitemapIndex(): void
{
header('Content-Type: application/xml; charset=utf-8');
$baseUrl = rtrim(APP_URL, '/');
// Main sitemap lastmod = newest mtime among static page view files
$mainLastMod = 0;
foreach (self::STATIC_PAGE_VIEWS as $relPath) {
$abs = APP_ROOT . $relPath;
if (is_file($abs)) {
$mainLastMod = max($mainLastMod, filemtime($abs));
}
}
$mainLastMod = $mainLastMod > 0 ? date('Y-m-d', $mainLastMod) : null;
// Articles sitemap lastmod = MAX(updated_at) of published articles
try {
$articlesLastModRaw = (new Article())->lastModifiedAll();
} catch (Throwable $e) {
$articlesLastModRaw = null;
}
$articlesLastMod = $articlesLastModRaw ? date('Y-m-d', strtotime($articlesLastModRaw)) : null;
$xml = '' . PHP_EOL;
$xml .= '' . PHP_EOL;
$xml .= ' ' . PHP_EOL;
$xml .= ' ' . htmlspecialchars($baseUrl . '/sitemap.xml') . '' . PHP_EOL;
if ($mainLastMod) {
$xml .= ' ' . $mainLastMod . '' . PHP_EOL;
}
$xml .= ' ' . PHP_EOL;
$xml .= ' ' . PHP_EOL;
$xml .= ' ' . htmlspecialchars($baseUrl . '/articles/sitemap.xml') . '' . PHP_EOL;
if ($articlesLastMod) {
$xml .= ' ' . $articlesLastMod . '' . PHP_EOL;
}
$xml .= ' ' . PHP_EOL;
// Marketplace sitemap
try {
require_once APP_ROOT . '/models/Listing.php';
$marketplaceLastModRaw = (new Listing())->lastModified();
} catch (Throwable $e) {
$marketplaceLastModRaw = null;
}
$marketplaceLastMod = $marketplaceLastModRaw ? date('Y-m-d', strtotime($marketplaceLastModRaw)) : null;
$xml .= ' ' . PHP_EOL;
$xml .= ' ' . htmlspecialchars($baseUrl . '/marketplace/sitemap.xml') . '' . PHP_EOL;
if ($marketplaceLastMod) {
$xml .= ' ' . $marketplaceLastMod . '' . PHP_EOL;
}
$xml .= ' ' . PHP_EOL;
$xml .= '';
echo $xml;
exit;
}
/**
* Marketplace listings sitemap (one entry per active listing).
*/
public function marketplace(): void
{
header('Content-Type: application/xml; charset=utf-8');
$baseUrl = rtrim(APP_URL, '/');
require_once APP_ROOT . '/models/Listing.php';
try {
$slugs = (new Listing())->getAllActiveSlugs();
} catch (Throwable $e) {
$slugs = [];
}
$xml = '' . PHP_EOL;
$xml .= '' . PHP_EOL;
foreach ($slugs as $row) {
$url = $baseUrl . '/marketplace/' . $row['slug'];
$lastmod = !empty($row['updated_at']) ? date('Y-m-d', strtotime($row['updated_at'])) : null;
$xml .= $this->generateUrlNode($url, '0.7', $lastmod);
}
$xml .= '';
echo $xml;
exit;
}
private function staticPageLastMod(string $path): ?string
{
if (!array_key_exists($path, self::STATIC_PAGE_VIEWS)) {
return null;
}
$abs = APP_ROOT . self::STATIC_PAGE_VIEWS[$path];
if (!is_file($abs)) {
return null;
}
return date('Y-m-d', filemtime($abs));
}
private function generateMultilingualUrlNode(string $url, string $path, string $priority, array $languages, ?string $lastmod = null): string
{
$changefreq = $priority >= '0.9' ? 'daily' : ($priority >= '0.7' ? 'weekly' : 'monthly');
$baseUrl = rtrim(APP_URL, '/');
$node = " " . PHP_EOL;
$node .= " " . htmlspecialchars($url) . "" . PHP_EOL;
if ($lastmod) {
$node .= " {$lastmod}" . PHP_EOL;
}
$node .= " {$changefreq}" . PHP_EOL;
$node .= " {$priority}" . PHP_EOL;
foreach ($languages as $lang) {
if ($lang === 'en') {
$langUrl = $url;
} else {
$langUrl = $baseUrl . '/lang/' . $lang . ($path ? '/' . $path : '');
}
if (!str_starts_with($langUrl, 'http')) {
$langUrl = $baseUrl . '/' . ltrim($langUrl, '/');
}
$hreflang = Lang::hreflangCode($lang);
$node .= " " . PHP_EOL;
}
$node .= " " . PHP_EOL;
$node .= " " . PHP_EOL;
return $node;
}
private function generateUrlNode(string $url, string $priority, ?string $lastmod = null): string
{
$changefreq = $priority >= '0.9' ? 'daily' : ($priority >= '0.7' ? 'weekly' : 'monthly');
$node = " " . PHP_EOL;
$node .= " " . htmlspecialchars($url) . "" . PHP_EOL;
if ($lastmod) {
$node .= " {$lastmod}" . PHP_EOL;
}
$node .= " {$changefreq}" . PHP_EOL;
$node .= " {$priority}" . PHP_EOL;
$node .= " " . PHP_EOL;
return $node;
}
}