2017-04-24 17:13:08 -06:00
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<?php
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2018-04-09 19:18:19 -06:00
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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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2017-04-24 17:13:08 -06:00
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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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2018-04-15 19:28:34 -06:00
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// Settings file
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require __DIR__ . '/settings.php';
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2017-04-24 17:13:08 -06:00
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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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2018-04-08 16:08:08 -06:00
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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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2017-04-24 17:13:08 -06:00
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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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2017-11-13 16:14:40 -07:00
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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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$SECURE_NONCE = base64_encode(random_bytes(8));
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2017-04-24 17:13:08 -06:00
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$session_length = 60 * 60; // 1 hour
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2017-11-08 02:35:12 -07:00
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session_set_cookie_params($session_length, "/", null, false, false);
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2017-04-24 17:13:08 -06:00
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session_start(); // stick some cookies in it
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2017-05-07 00:14:59 -06:00
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// renew session cookie
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setcookie(session_name(), session_id(), time() + $session_length);
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2017-11-13 16:14:40 -07:00
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2018-04-15 19:28:34 -06:00
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$captcha_server = (CAPTCHA_ENABLED === true ? preg_replace("/http(s)?:\/\//", "", CAPTCHA_SERVER) : "");
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2017-11-13 16:14:40 -07:00
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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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2018-04-15 19:28:34 -06:00
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. "style-src 'self' 'unsafe-inline' $captcha_server; "
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. "script-src 'self' 'unsafe-inline' $captcha_server");
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2017-11-13 16:14:40 -07:00
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} else {
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header("Content-Security-Policy: "
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. "default-src 'self';"
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. "object-src 'none'; "
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. "img-src * data:; "
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. "media-src 'self'; "
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. "frame-src 'none'; "
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. "font-src 'self'; "
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. "connect-src *; "
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2018-04-15 19:28:34 -06:00
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. "style-src 'self' 'nonce-$SECURE_NONCE' $captcha_server; "
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. "script-src 'self' 'nonce-$SECURE_NONCE' $captcha_server");
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2017-11-13 16:14:40 -07:00
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}
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2017-04-24 17:13:08 -06:00
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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__ . '/lang/messages.php';
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// text strings (i18n)
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require __DIR__ . '/lang/' . LANGUAGE . ".php";
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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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2017-11-13 16:14:40 -07:00
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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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2017-04-24 17:13:08 -06:00
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}
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date_default_timezone_set(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' => DB_TYPE,
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'database_name' => DB_NAME,
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'server' => DB_SERVER,
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'username' => DB_USER,
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'password' => DB_PASS,
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'charset' => DB_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. $ex");
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}
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if (!DEBUG) {
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error_reporting(0);
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} else {
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error_reporting(E_ALL);
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ini_set('display_errors', 'On');
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}
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$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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/**
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* Checks if a string or whatever is empty.
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* @param $str The thingy to check
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* @return boolean True if it's empty or whatever.
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*/
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function is_empty($str) {
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return (is_null($str) || !isset($str) || $str == '');
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}
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/**
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* I18N string getter. If the key doesn't exist, outputs the key itself.
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* @param string $key I18N string key
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* @param boolean $echo whether to echo the result or return it (default echo)
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*/
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function lang($key, $echo = true) {
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if (array_key_exists($key, STRINGS)) {
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$str = STRINGS[$key];
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} else {
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2017-12-01 22:06:04 -07:00
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trigger_error("Language key \"$key\" does not exist in " . LANGUAGE, E_USER_WARNING);
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2017-04-24 17:13:08 -06:00
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$str = $key;
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}
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if ($echo) {
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echo $str;
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} else {
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return $str;
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}
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}
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/**
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* I18N string getter (with builder). If the key doesn't exist, outputs the key itself.
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* @param string $key I18N string key
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* @param array $replace key-value array of replacements.
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* If the string value is "hello {abc}" and you give ["abc" => "123"], the
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* result will be "hello 123".
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* @param boolean $echo whether to echo the result or return it (default echo)
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*/
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function lang2($key, $replace, $echo = true) {
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if (array_key_exists($key, STRINGS)) {
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$str = STRINGS[$key];
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} else {
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2017-12-01 22:06:04 -07:00
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trigger_error("Language key \"$key\" does not exist in " . LANGUAGE, E_USER_WARNING);
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2017-04-24 17:13:08 -06:00
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$str = $key;
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}
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foreach ($replace as $find => $repl) {
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$str = str_replace("{" . $find . "}", $repl, $str);
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}
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if ($echo) {
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echo $str;
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} else {
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return $str;
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}
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}
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function dieifnotloggedin() {
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if ($_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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}
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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>" . $errors[2] . "</code>");
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}
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}
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/*
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2017-07-10 13:53:49 -06:00
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* http://stackoverflow.com/a/20075147
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2017-04-24 17:13:08 -06:00
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*/
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if (!function_exists('base_url')) {
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function base_url($atRoot = FALSE, $atCore = FALSE, $parse = FALSE) {
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if (isset($_SERVER['HTTP_HOST'])) {
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$http = isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off' ? 'https' : 'http';
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$hostname = $_SERVER['HTTP_HOST'];
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$dir = str_replace(basename($_SERVER['SCRIPT_NAME']), '', $_SERVER['SCRIPT_NAME']);
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$core = preg_split('@/@', str_replace($_SERVER['DOCUMENT_ROOT'], '', realpath(dirname(__FILE__))), NULL, PREG_SPLIT_NO_EMPTY);
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$core = $core[0];
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$tmplt = $atRoot ? ($atCore ? "%s://%s/%s/" : "%s://%s/") : ($atCore ? "%s://%s/%s/" : "%s://%s%s");
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$end = $atRoot ? ($atCore ? $core : $hostname) : ($atCore ? $core : $dir);
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$base_url = sprintf($tmplt, $http, $hostname, $end);
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} else
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$base_url = 'http://localhost/';
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if ($parse) {
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$base_url = parse_url($base_url);
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if (isset($base_url['path']))
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if ($base_url['path'] == '/')
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$base_url['path'] = '';
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}
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return $base_url;
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}
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}
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function redirectIfNotLoggedIn() {
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if ($_SESSION['loggedin'] !== TRUE) {
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2017-04-26 00:46:36 -06:00
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header('Location: ' . URL . '/index.php');
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2017-04-24 17:13:08 -06:00
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die();
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}
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}
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