includes.php

<?php
/* it"s global */
if (isset($_SERVER["HTTP_HOST"])) {
    if (isset($_SERVER["HTTP_CF_CONNECTING_IP"])) {
        $_SERVER["REMOTE_ADDR"] = $_SERVER["HTTP_CF_CONNECTING_IP"];
    }
    $_SERVER["HTTP_SUBDOMAIN"] = explode('.', $_SERVER["HTTP_HOST"])[0];
    if (count(explode('.', $_SERVER["HTTP_HOST"])) < 3) {
        $_SERVER["HTTP_SUBDOMAIN"] = '';
    }
    $https = ($_SERVER["SERVER_PORT"] ?? 0) == 443 ? "https://" : "http://";

    /* If this breaks, everything else breaks and nothing would load! */
    if (!str_contains($_SERVER["DOCUMENT_ROOT"], "apps") && !empty($_SERVER["HTTP_HOST"] ?? "")) {
        if (str_contains($_SERVER["HTTP_HOST"], "beta")) {
        } else {
            define("DOCUMENT_ROOT", rtrim($_SERVER["DOCUMENT_ROOT"], $_SERVER["HTTP_SUBDOMAIN"]));
            define("ROOT_LINK", $https . ltrim($_SERVER["HTTP_HOST"], $_SERVER["HTTP_SUBDOMAIN"] . '.'));
            define("STATIC_LINK", $https . "static." . ltrim($_SERVER["HTTP_HOST"], $_SERVER["HTTP_SUBDOMAIN"] . '.'));
            define("API_LINK", $https . "api." . ltrim($_SERVER["HTTP_HOST"], $_SERVER["HTTP_SUBDOMAIN"] . '.'));
            /* Prepare everything to make the page works */
            define("CONFIG", parse_ini_file(file_exists(DOCUMENT_ROOT . "\configs2.ini") ? DOCUMENT_ROOT . "\configs2.ini" : DOCUMENT_ROOT . "\configs.ini", true));
            define("WEBSITE", CONFIG["website"]["name"]);
            require_once DOCUMENT_ROOT . "/includes/php/core.php";
            log_request();
            if (!in_array($_SERVER["HTTP_SUBDOMAIN"], ["api", "experiments", "static"]) && $_SERVER["REQUEST_METHOD"] != "POST") {
                if ($_SERVER["HTTP_SUBDOMAIN"] == "www") {
                    header("Location: " . ROOT_LINK);
                }
                /* Maintenance mode */
                if (CONFIG["website"]["maintenance"] == true && !in_array($_SERVER["REQUEST_URI"], ["/maintenance/", "/internal/"])) {
                    header("Location: " . ROOT_LINK . "/maintenance/");
                }
                $database = prepare_database();
                if (isset($_COOKIE["token"]) && check_token_validity($_COOKIE["token"])) {
                    $token = $_COOKIE["token"];
                    $user = get_user_info_from_token($token);
                    if ($database->preparedQuery("SELECT count(id) AS result FROM bans WHERE user = ?", [$user["identifier"]])->fetch(PDO::FETCH_ASSOC)["result"] > 0 && !in_array($_SERVER["REQUEST_URI"], ["/ban/", "/notifications/", "/terms/", "/privacy/", "/contact/", "/settings/"])) {
                        header("Location: " . ROOT_LINK . "/ban/");
                    }
                    /* Setup rate limit bombs */
                    if (session_status() === PHP_SESSION_NONE) {
                        session_start();
                    }
                    if (!isset($_SESSION["limits"])) {
                        $_SESSION["limits"] = [];
                        $_SESSION["limits"]["time"] = [];
                    }
                }
            }
        }
    }
}