180 lines
5.4 KiB
PHP
180 lines
5.4 KiB
PHP
<?php
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* This file contains global settings and utility functions.
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*/
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ob_start(); // allow sending headers after content
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// Settings file
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require __DIR__ . '/settings.php';
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// Unicode, solves almost all stupid encoding problems
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header('Content-Type: text/html; charset=utf-8');
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// Strip PHP version
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header('X-Powered-By: PHP');
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// Security
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header('X-Content-Type-Options: nosniff');
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header('X-XSS-Protection: 1; mode=block');
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header('X-Frame-Options: "DENY"');
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header('Referrer-Policy: "no-referrer, strict-origin-when-cross-origin"');
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$SECURE_NONCE = base64_encode(random_bytes(8));
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$session_length = 60 * 60 * 1; // 1 hour
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ini_set('session.gc_maxlifetime', $session_length);
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session_set_cookie_params($session_length, "/", null, false, false);
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session_start(); // stick some cookies in it
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// renew session cookie
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setcookie(session_name(), session_id(), time() + $session_length, "/", false, false);
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if ($_SESSION['mobile'] === TRUE) {
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header("Content-Security-Policy: "
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. "default-src 'self';"
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. "object-src 'none'; "
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. "img-src * data:; "
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. "media-src 'self'; "
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. "frame-src 'none'; "
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. "font-src 'self'; "
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. "connect-src *; "
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. "style-src 'self' 'unsafe-inline'; "
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. "script-src 'self' 'unsafe-inline'");
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} else {
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header("Content-Security-Policy: "
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. "default-src 'self';"
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. "object-src 'none'; "
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. "img-src * data:; "
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. "media-src 'self'; "
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. "frame-src 'none'; "
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. "font-src 'self'; "
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. "connect-src *; "
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. "style-src 'self' 'nonce-$SECURE_NONCE'; "
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. "script-src 'self' 'nonce-$SECURE_NONCE'");
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}
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//
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// Composer
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require __DIR__ . '/vendor/autoload.php';
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// List of alert messages
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require __DIR__ . '/langs/messages.php';
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$libs = glob(__DIR__ . "/lib/*.lib.php");
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foreach ($libs as $lib) {
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require_once $lib;
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}
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$Strings = new Strings($SETTINGS['language']);
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/**
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* Kill off the running process and spit out an error message
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* @param string $error error message
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*/
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function sendError($error) {
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global $SECURE_NONCE;
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die("<!DOCTYPE html>"
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. "<meta charset=\"UTF-8\">"
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. "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">"
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. "<title>Error</title>"
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. "<style nonce=\"" . $SECURE_NONCE . "\">"
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. "h1 {color: red; font-family: sans-serif; font-size: 20px; margin-bottom: 0px;} "
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. "h2 {font-family: sans-serif; font-size: 16px;} "
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. "p {font-family: monospace; font-size: 14px; width: 100%; wrap-style: break-word;} "
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. "i {font-size: 12px;}"
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. "</style>"
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. "<h1>A fatal application error has occurred.</h1>"
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. "<i>(This isn't your fault.)</i>"
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. "<h2>Details:</h2>"
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. "<p>" . htmlspecialchars($error) . "</p>");
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}
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date_default_timezone_set($SETTINGS['timezone']);
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// Database settings
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// Also inits database and stuff
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use Medoo\Medoo;
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$database;
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try {
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$database = new Medoo([
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'database_type' => $SETTINGS['database']['type'],
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'database_name' => $SETTINGS['database']['name'],
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'server' => $SETTINGS['database']['server'],
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'username' => $SETTINGS['database']['user'],
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'password' => $SETTINGS['database']['password'],
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'charset' => $SETTINGS['database']['charset']
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]);
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} catch (Exception $ex) {
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//header('HTTP/1.1 500 Internal Server Error');
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sendError("Database error. Try again later. $ex");
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}
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if (!$SETTINGS['debug']) {
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error_reporting(0);
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} else {
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error_reporting(E_ALL);
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ini_set('display_errors', 'On');
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}
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$VARS;
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if ($_SERVER['REQUEST_METHOD'] === 'POST') {
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$VARS = $_POST;
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define("GET", false);
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} else {
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$VARS = $_GET;
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define("GET", true);
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}
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function dieifnotloggedin() {
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global $SETTINGS;
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if ($_SESSION['loggedin'] != true) {
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sendError("Session expired. Please log out and log in again.");
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}
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$user = new User($_SESSION['uid']);
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foreach ($SETTINGS['permissions'] as $perm) {
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if (!$user->hasPermission($perm)) {
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session_destroy();
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die("You don't have permission to be here.");
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}
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}
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}
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/**
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* Check if the previous database action had a problem.
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* @param array $specials int=>string array with special response messages for SQL errors
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*/
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function checkDBError($specials = []) {
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global $database;
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$errors = $database->error();
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if (!is_null($errors[1])) {
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foreach ($specials as $code => $text) {
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if ($errors[1] == $code) {
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sendError($text);
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}
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}
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sendError("A database error occurred:<br /><code>" . $errors[2] . "</code>");
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}
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}
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function redirectIfNotLoggedIn() {
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global $SETTINGS;
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if ($_SESSION['loggedin'] !== TRUE) {
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header('Location: ' . $SETTINGS['url'] . '/index.php');
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die();
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}
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$user = new User($_SESSION['uid']);
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foreach ($SETTINGS['permissions'] as $perm) {
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if (!$user->hasPermission($perm)) {
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session_destroy();
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header('Location: ./index.php');
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die("You don't have permission to be here.");
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}
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}
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}
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