servnest/router.php

<?php

define("CONF", parse_ini_file(__DIR__ . "/config.ini", true, INI_SCANNER_TYPED));

foreach (array_diff(scandir(CONF['common']['root_path'] . "/fn"), array('..', '.')) as $file)
	require CONF['common']['root_path'] . '/fn/' . $file;

define("DB_PATH", CONF['common']['root_path'] . "/db/niver.db");

define("PLACEHOLDER_DOMAIN", "example"); // From RFC2606: Reserved Top Level DNS Names > 2. TLDs for Testing, & Documentation Examples
define("PLACEHOLDER_IPV6", "2001:db8::3"); // From RFC3849: IPv6 Address Prefix Reserved for Documentation
define("PLACEHOLDER_IPV4", "203.0.113.42"); // From RFC5737: IPv4 Address Blocks Reserved for Documentation

if ($_SERVER['REQUEST_URI'] === '/sftpgo-auth.php')
	return;

$pageAddress = substr($_SERVER['REQUEST_URI'], strlen(CONF['common']['prefix']) + 1);
if (strpos($pageAddress, "?") !== false) {
	parse_str(substr($pageAddress, strpos($pageAddress, "?") + 1), $_GET);
	$pageAddress = substr($pageAddress, 0, strpos($pageAddress, "?"));
}

define("PAGE_URL", $pageAddress);
define("PAGE_ADDRESS", $pageAddress . ((substr($pageAddress, -1) === '/' OR $pageAddress === '') ? 'index' : ''));
define("PAGE_LINEAGE", explode('/', PAGE_ADDRESS));
define("SERVICE", dirname(PAGE_ADDRESS));
define("PAGE", basename(PAGE_ADDRESS, '.php'));

require "pages.php";

if (PAGE !== 'index') {
	if (!isset(TITLES[SERVICE][PAGE])) {
		http_response_code(404);
		exit('Page not found.');
	}
	if (SERVICE !== '.') {
		if (!isset(TITLES[SERVICE]['index'])) {
			http_response_code(404);
			exit('Page not found.');
		}
	}
}

for (
	$path_i = PAGE_LINEAGE , $results = [] , $firstIteration = true ;
	$title = TITLES , $path_i !== [] ;
	array_pop($path_i) , $results[] = $title
) {
	foreach ($path_i as $el) {
		if (end($path_i) !== $el)
			$title = $title[$el];
		else {
			if ($firstIteration AND end($path_i) !== 'index')
				$results[] = $title[$el];
			$firstIteration = false;
			$title = $title['index'];
		}
	}
}
define('TITLES_LINEAGE', array_reverse($results));

require "html.php";

function executePage() {
	require "pages/" . PAGE_ADDRESS . ".php";
	closeHtml();
}
executePage();