forkbb/app/functions.php

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<?php
/**
* This file is part of the ForkBB <https://github.com/forkbb>.
*
* @copyright (c) Visman <mio.visman@yandex.ru, https://github.com/MioVisman>
* @license The MIT License (MIT)
*/
declare(strict_types=1);
namespace ForkBB;
use ForkBB\Core\Container;
use DateTime;
use DateTimeZone;
use InvalidArgumentException;
/**
* Инициализирует другие функции (передача контейнера)
*/
function _init(Container $c): void
{
__([$c]);
dt(0, true, '', '', true, true, $c);
}
/**
* Переводит строку с подстановкой аргументов
* Защита от дурака отсутствует, ловим ошибки/исключения
*/
function __(/* string|array */ $arg): string
{
static $c, $lang;
if (null === $lang) {
if (null === $c) {
$c = \reset($arg);
if (! $c instanceof Container) {
throw new InvalidArgumentException('Container expected');
}
return '';
} else {
$lang = $c->Lang;
}
}
if (\is_array($arg)) {
$str = \array_shift($arg);
$tr = $lang->get($str);
if (null === $tr) {
$tr = e($str);
} elseif (\is_array($tr)) {
$num = \array_shift($arg);
$tr = $lang->getForm($tr, $num);
}
if (empty($arg)) {
return $tr;
} elseif (\is_array(\reset($arg))) {
return \strtr($tr, \array_map('\\ForkBB\\e', \reset($arg)));
} else {
$arg = \array_map('\\ForkBB\\e', $arg);
return \sprintf($tr, ...$arg);
}
} else {
return $lang->get($arg) ?? e($arg);
}
}
/**
* Экранирует спецсимволов HTML-сущностями
*/
function e(string $arg): string
{
return \htmlspecialchars($arg, \ENT_HTML5 | \ENT_QUOTES | \ENT_SUBSTITUTE, 'UTF-8');
}
/**
* Возвращает число в формате текущего пользователя
*/
function num(/* mixed */ $number, int $decimals = 0): string
{
return \is_numeric($number)
? \number_format((float) $number, $decimals, __('lang_decimal_point'), __('lang_thousands_sep'))
: '-';
}
/**
* Возвращает дату/время в формате текущего пользователя
*/
function dt(int $arg, bool $dateOnly = false, string $dateFormat = null, string $timeFormat = null, bool $timeOnly = false, bool $noText = false, Container $container = null): string
{
static $c, $offset;
if (null !== $container) {
$c = $container;
return '';
}
if (empty($arg)) {
return __('Never');
}
if (null === $offset) {
if (\in_array($c->user->timezone, DateTimeZone::listIdentifiers(), true)) {
$dateTimeZone = new DateTimeZone($c->user->timezone);
$dateTime = new DateTime('now', $dateTimeZone);
$offset = $dateTime->getOffset();
} else {
$offset = 0;
}
}
$arg += $offset;
if (null === $dateFormat) {
$dateFormat = $c->DATE_FORMATS[$c->user->date_format];
}
if (null === $timeFormat) {
$timeFormat = $c->TIME_FORMATS[$c->user->time_format];
}
$date = \gmdate($dateFormat, $arg);
if (! $noText) {
$now = \time() + $offset;
if ($date == \gmdate($dateFormat, $now)) {
$date = __('Today');
} elseif ($date == \gmdate($dateFormat, $now - 86400)) {
$date = __('Yesterday');
}
}
if ($dateOnly) {
return $date;
} elseif ($timeOnly) {
return \gmdate($timeFormat, $arg);
} else {
return $date . ' ' . \gmdate($timeFormat, $arg);
}
}
/**
* Возвращает размер в байтах, Кбайтах, ...
*/
function size(int $size): string
{
$units = ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB'];
for ($i = 0; $size > 1024; ++$i) {
$size /= 1024;
}
$decimals = $size - (int) $size < 0.005 ? 0 : 2;
return __(['%s ' . $units[$i], num($size, $decimals)]);
}
/**
* Возвращает нормализованный (частично) url или пустую строку
*/
function url(string $url): string
{
if (
! isset($url[1])
|| \preg_match('%^\s%u', $url)
) {
return '';
}
switch ($url[0]) {
case '/':
if ('/' === $url[1]) {
$schemeOn = false;
$hostOn = true;
$url = 'http:' . $url;
break;
}
case '?':
case '#':
$schemeOn = false;
$hostOn = false;
$url = 'http://a.a' . $url;
break;
default:
$hostOn = true;
if (\preg_match('%^([a-z][a-z0-9+.-]*):(\S)?%i', $url, $m)) {
if (
! isset($m[2])
|| isset($m[1][10])
) {
return '';
}
$schemeOn = true;
} else {
$schemeOn = false;
$url = 'http://' . $url;
}
break;
}
$p = \parse_url($url);
if (! \is_array($p)) {
return '';
}
$scheme = \strtolower($p['scheme'] ?? '');
$result = $schemeOn && $scheme ? $scheme . ':' : '';
switch ($scheme) {
case 'javascript':
return '';
case 'mailto':
if (
isset($p['host'])
|| ! isset($p['path'])
|| ! \preg_match('%^([^\x00-\x1F]+)@([^\x00-\x1F\s@]++)$%Du', $p['path'], $m)
) {
return '';
}
$result .= \rawurlencode(\rawurldecode($m[1])) . '@' . \rawurlencode(\rawurldecode($m[2]));
break;
case 'tel':
if (
isset($p['host'])
|| ! isset($p['path'])
|| ! \preg_match('%^\+?[0-9.()-]+$%D', $p['path'])
) {
return '';
}
$result .= $p['path'];
break;
default:
if ($hostOn && isset($p['host'])) {
$result .= '//';
if (isset($p['user'])) {
$result .= \rawurlencode(\rawurldecode($p['user']));
if (isset($p['pass'])) {
$result .= ':' . \rawurlencode(\rawurldecode($p['pass']));
}
$result .= '@';
}
if (\preg_match('%[\x80-\xFF]%', $p['host'])) {
$p['host'] = \idn_to_ascii($p['host'], 0, \INTL_IDNA_VARIANT_UTS46);
}
$host = \filter_var($p['host'], \FILTER_VALIDATE_DOMAIN, \FILTER_FLAG_HOSTNAME);
if (false !== $host) {
$result .= $host;
} elseif (
'[' === $p['host'][0]
&& ']' === $p['host'][-1]
&& \filter_var(\substr($p['host'], 1, -1), \FILTER_VALIDATE_IP, \FILTER_FLAG_IPV6)
) {
$result .= $p['host'];
} else {
return '';
}
if (isset($p['port'])) {
$result .= ':' . $p['port'];
}
}
if (isset($p['path'])) {
$result .= \preg_replace_callback(
'%[^/\%\w.~-]|\%(?![0-9a-fA-F]{2})%',
function($m) {
return \rawurlencode($m[0]);
},
$p['path']
);
}
break;
}
if (isset($p['query'])) {
$result .= '?' . \preg_replace_callback(
'%[^=&\%\w.~-]|\%(?![0-9a-fA-F]{2})%',
function($m) {
return \rawurlencode($m[0]);
},
$p['query']
);
}
if (isset($p['fragment'])) {
$result .= '#' . \preg_replace_callback(
'%[^\%\w.~-]|\%(?![0-9a-fA-F]{2})%',
function($m) {
return \rawurlencode($m[0]);
},
$p['fragment']
);
}
return $result;
}