395 lines
11 KiB
PHP
395 lines
11 KiB
PHP
<?php
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function verifyHostname(?string $host = null): void {
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global $config;
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if ($host === null) {
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$host = $_SERVER['HTTP_HOST'];
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// IE moment
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if (($pos = strpos($host, ':')) !== false)
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$host = substr($host, 0, $pos);
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}
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if (!str_ends_with($host, $config['domain']))
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throw new RuntimeException('invalid http_host '.$host);
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if (strlen($host) > ($orig_domain_len = strlen($config['domain']))) {
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$sub = substr($host, 0, -$orig_domain_len-1);
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if (in_array($sub, $config['dev_domains'])) {
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$config['is_dev'] = true;
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} else if (!in_array($sub, $config['subdomains'])) {
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throw new RuntimeException('invalid subdomain '.$sub);
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}
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}
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if (isCli() && str_ends_with(__DIR__, 'www-dev'))
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$config['is_dev'] = true;
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}
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function htmlescape(string|array $s): string|array {
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if (is_array($s)) {
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foreach ($s as $k => $v) {
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$s[$k] = htmlescape($v);
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}
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return $s;
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}
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return htmlspecialchars($s, ENT_QUOTES, 'UTF-8');
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}
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function sizeString(int $size): string {
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$ks = array('B', 'KiB', 'MiB', 'GiB');
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foreach ($ks as $i => $k) {
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if ($size < pow(1024, $i + 1)) {
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if ($i == 0)
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return $size . ' ' . $k;
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return round($size / pow(1024, $i), 2).' '.$k;
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}
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}
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return $size;
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}
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function extension(string $name): string {
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$expl = explode('.', $name);
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return end($expl);
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}
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/**
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* @param string $filename
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* @return resource|bool
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*/
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function imageopen(string $filename) {
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$size = getimagesize($filename);
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$types = [
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1 => 'gif',
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2 => 'jpeg',
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3 => 'png'
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];
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if (!$size || !isset($types[$size[2]]))
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return null;
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return call_user_func('imagecreatefrom'.$types[$size[2]], $filename);
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}
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function detectImageType(string $filename) {
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$size = getimagesize($filename);
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$types = [
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1 => 'gif',
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2 => 'jpg',
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3 => 'png'
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];
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if (!$size || !isset($types[$size[2]]))
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return false;
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return $types[$size[2]];
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}
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function transliterate(string $string): string {
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$roman = array(
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'Sch', 'sch', 'Yo', 'Zh', 'Kh', 'Ts', 'Ch', 'Sh', 'Yu', 'ya', 'yo',
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'zh', 'kh', 'ts', 'ch', 'sh', 'yu', 'ya', 'A', 'B', 'V', 'G', 'D', 'E',
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'Z', 'I', 'Y', 'K', 'L', 'M', 'N', 'O', 'P', 'R', 'S', 'T', 'U', 'F',
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'', 'Y', '', 'E', 'a', 'b', 'v', 'g', 'd', 'e', 'z', 'i', 'y', 'k',
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'l', 'm', 'n', 'o', 'p', 'r', 's', 't', 'u', 'f', '', 'y', '', 'e'
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);
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$cyrillic = array(
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'Щ', 'щ', 'Ё', 'Ж', 'Х', 'Ц', 'Ч', 'Ш', 'Ю', 'я', 'ё', 'ж', 'х', 'ц',
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'ч', 'ш', 'ю', 'я', 'А', 'Б', 'В', 'Г', 'Д', 'Е', 'З', 'И', 'Й', 'К',
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'Л', 'М', 'Н', 'О', 'П', 'Р', 'С', 'Т', 'У', 'Ф', 'Ь', 'Ы', 'Ъ', 'Э',
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'а', 'б', 'в', 'г', 'д', 'е', 'з', 'и', 'й', 'к', 'л', 'м', 'н', 'о',
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'п', 'р', 'с', 'т', 'у', 'ф', 'ь', 'ы', 'ъ', 'э'
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);
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return str_replace($cyrillic, $roman, $string);
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}
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/**
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* @param resource $img
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* @param ?int $w
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* @param ?int $h
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* @param ?int[] $transparent_color
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*/
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function imageresize(&$img, ?int $w = null, ?int $h = null, ?array $transparent_color = null) {
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assert(is_int($w) || is_int($h));
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$curw = imagesx($img);
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$curh = imagesy($img);
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if (!is_int($w) && is_int($h)) {
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$w = round($curw / ($curw / $w));
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} else if (is_int($w) && !is_int($h)) {
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$h = round($curh / ($curh / $h));
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}
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$img2 = imagecreatetruecolor($w, $h);
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if (is_array($transparent_color)) {
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list($r, $g, $b) = $transparent_color;
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$col = imagecolorallocate($img2, $r, $g, $b);
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imagefilledrectangle($img2, 0, 0, $w, $h, $col);
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} else {
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imagealphablending($img2, false);
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imagesavealpha($img2, true);
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imagefilledrectangle($img2, 0, 0, $w, $h, imagecolorallocatealpha($img2, 255, 255, 255, 127));
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}
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imagecopyresampled($img2, $img, 0, 0, 0, 0, $w, $h, $curw, $curh);
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imagedestroy($img);
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$img = $img2;
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}
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function rrmdir(string $dir, bool $dont_delete_dir = false): bool {
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if (!is_dir($dir)) {
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logError('rrmdir: '.$dir.' is not a directory');
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return false;
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}
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$objects = scandir($dir);
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foreach ($objects as $object) {
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if ($object != '.' && $object != '..') {
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if (is_dir($dir.'/'.$object)) {
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rrmdir($dir.'/'.$object);
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} else {
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unlink($dir.'/'.$object);
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}
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}
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}
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if (!$dont_delete_dir)
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rmdir($dir);
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return true;
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}
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function ip2ulong(string $ip): int {
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return sprintf("%u", ip2long($ip));
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}
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function ulong2ip(int $ip): string {
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$long = 4294967295 - ($ip - 1);
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return long2ip(-$long);
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}
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function fromCamelCase(string $s): string {
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$buf = '';
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$len = strlen($s);
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for ($i = 0; $i < $len; $i++) {
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if (!ctype_upper($s[$i])) {
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$buf .= $s[$i];
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} else {
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$buf .= '_'.strtolower($s[$i]);
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}
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}
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return $buf;
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}
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function toCamelCase(string $input, string $separator = '_'): string {
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return lcfirst(str_replace($separator, '', ucwords($input, $separator)));
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}
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function strReplaceOnce(string $needle, string $replace, string $haystack) {
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$pos = strpos($haystack, $needle);
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if ($pos !== false)
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$haystack = substr_replace($haystack, $replace, $pos, strlen($needle));
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return $haystack;
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}
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function strgen(int $len): string {
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$buf = '';
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for ($i = 0; $i < $len; $i++) {
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$j = mt_rand(0, 61);
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if ($j >= 36) {
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$j += 13;
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} else if ($j >= 10) {
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$j += 7;
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}
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$buf .= chr(48 + $j);
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}
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return $buf;
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}
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function sanitizeFilename(string $name): string {
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$name = mb_strtolower($name);
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$name = transliterate($name);
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$name = preg_replace('/[^\w\d\-_\s.]/', '', $name);
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$name = preg_replace('/\s+/', '_', $name);
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return $name;
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}
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function setperm(string $file): void {
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global $config;
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// chgrp
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$gid = filegroup($file);
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if ($gid != $config['group']) {
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if (!chgrp($file, $config['group'])) {
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logError(__FUNCTION__.": chgrp() failed on $file");
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}
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}
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// chmod
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$perms = fileperms($file);
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$need_perms = is_dir($file) ? $config['dirs_mode'] : $config['files_mode'];
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if (($perms & $need_perms) !== $need_perms) {
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if (!chmod($file, $need_perms)) {
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logError(__FUNCTION__.": chmod() failed on $file");
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}
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}
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}
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function saltPassword(string $pwd): string {
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global $config;
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return hash('sha256', "{$pwd}|{$config['password_salt']}");
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}
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function exectime(?string $format = null): string|float {
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$time = round(microtime(true) - START_TIME, 4);
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if (!is_null($format))
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$time = sprintf($format, $time);
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return $time;
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}
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function formatNumber(int|float $num, string $delim = ' ', bool $short = false): string {
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if ($short) {
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if ($num >= 1000000)
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return floor($num / 1000000).'m';
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if ($num >= 1000)
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return floor($num / 1000).'k';
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}
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return number_format($num, 0, '.', $delim);
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}
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function lang() {
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global $__lang;
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return call_user_func_array([$__lang, 'get'], func_get_args());
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}
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function langNum() {
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global $__lang;
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return call_user_func_array([$__lang, 'num'], func_get_args());
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}
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function isDev(): bool { global $config; return $config['is_dev']; }
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function isCli(): bool { return PHP_SAPI == 'cli'; };
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function isRetina(): bool { return isset($_COOKIE['is_retina']) && $_COOKIE['is_retina']; }
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function isAdmin(): bool {
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if (admin::getId() === null)
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admin::check();
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return admin::getId() != 0;
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}
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function jsonEncode($obj): ?string { return json_encode($obj, JSON_UNESCAPED_UNICODE) ?: null; }
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function jsonDecode($json) { return json_decode($json, true); }
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function pcreNoError(mixed &$result, bool $no_error = false): bool {
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if ($result === null) {
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if (preg_last_error() !== PREG_NO_ERROR) {
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if (!$no_error)
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logError('an error occurred while PCRE regex execution: '.preg_last_error_msg());
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return false;
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}
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}
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return true;
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}
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function highlightSubstring(string $s, string|array|null $keywords = []): string {
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if (is_null($keywords))
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return htmlescape($s);
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if ($keywords instanceof Stringable)
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$keywords = $keywords->__toString();
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else if (is_array($keywords)) {
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$keywords = array_map(function($s) {
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if ($s instanceof Stringable)
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return $s->__toString();
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return $s;
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}, $keywords);
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}
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if (is_string($keywords))
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$keywords = preg_split('/\s+/', $keywords);
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$charset = 'utf-8';
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$s_len = mb_strlen($s, $charset);
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usort($keywords, function($a, $b) use (&$charset) {
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return mb_strlen($b, $charset) - mb_strlen($a, $charset);
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});
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$all = [];
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foreach ($keywords as $kw) {
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$kw_len = mb_strlen($kw, $charset);
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$offset = 0;
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while (($pos = mb_stripos($s, $kw, $offset, $charset)) !== false) {
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$offset = $pos + 1;
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$all[] = [$pos, $kw_len];
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}
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}
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usort($all, function($a, $b) {
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return $a[0] - $b[0];
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});
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$last_index = 0;
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$buf = '';
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foreach ($all as $range) {
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list($start_pos, $len) = $range;
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if ($start_pos < $last_index) {
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continue;
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}
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if ($start_pos > $last_index) {
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$buf .= htmlescape(mb_substr($s, $last_index, $start_pos - $last_index, $charset));
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}
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$buf .= '<span class="matched">'.htmlescape(mb_substr($s, $start_pos, $len, $charset)).'</span>';
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$last_index = $start_pos + $len;
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}
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if ($last_index < $s_len) {
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$buf .= htmlescape(mb_substr($s, $last_index, $s_len - $last_index, $charset));
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}
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return $buf;
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}
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function formatTime($ts, array $opts = array()) {
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$default_opts = [
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'date_only' => false,
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'day_of_week' => false,
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'seconds' => false,
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'short_months' => false,
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'skip_today_date' => false,
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'skip_old_time' => false,
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'at' => null,
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];
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$opts = array_merge($default_opts, $opts);
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$is_today = date('Ymd') == date('Ymd', $ts);
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$date = '';
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$skip_old_time = false;
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if (!$is_today || !$opts['skip_today_date']) {
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$y = (int)date('Y', $ts);
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$date .= date('j '.(!$opts['short_months'] ? 'F' : 'M'), $ts);
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if ($y != (int)date('Y')) {
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$date .= ' ' . $y;
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if ($opts['skip_old_time']) {
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$skip_old_time = true;
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}
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}
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if ($opts['day_of_week']) {
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$date .= ', ' . date('l', $ts);
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}
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}
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if (!$opts['date_only'] && !$skip_old_time) {
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if ($date != '') {
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$date .= $opts['at'] ?? ' at ';
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}
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$date .= date('H:i', $ts);
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if ($opts['seconds'])
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$date .= date(':s', $ts);
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}
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return $date;
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}
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