266 lines
7.8 KiB
PHP
266 lines
7.8 KiB
PHP
<?php
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namespace App\Services;
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use Log;
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use Illuminate\Support\Str;
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use Storage as LaravelStorage;
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use App\Exceptions\PrettyPageException;
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class Utils
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{
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/**
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* Returns the client IP address.
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*
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* This method is defined because Symfony's Request::getClientIp() needs "setTrustedProxies()"
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* which sucks when load balancer is enabled.
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*
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* @return string
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*/
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public static function getClientIp()
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{
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if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
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$ip = $_SERVER['HTTP_CLIENT_IP'];
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} elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
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$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
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} else {
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$ip = $_SERVER['REMOTE_ADDR'];
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}
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return $ip;
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}
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/**
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* Checks whether the request is secure or not.
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* True is always returned when "X-Forwarded-Proto" header is set.
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*
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* This method is defined because Symfony's Request::isSecure() needs "setTrustedProxies()"
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* which sucks when load balancer is enabled.
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*
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* @return bool
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*/
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public static function isRequestSecure()
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{
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if (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on')
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return true;
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if (!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https')
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return true;
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if (!empty($_SERVER['HTTP_X_FORWARDED_SSL']) && $_SERVER['HTTP_X_FORWARDED_SSL'] == 'on')
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return true;
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return false;
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}
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/**
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* Compares two "PHP-standardized" version number strings.
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* Unlike version_compare(), this method will determine that versions with suffix are lower.
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*
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* e.g. 3.2-beta > 3.2-alpha
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* 3.2 > 3.2-beta
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* 3.2 > 3.2-pre-release
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* 3.2 > 3.2-pr8
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*
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* @param string $version1
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* @param string $version2
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* @param string $operator
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* @return mixed
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*/
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public static function versionCompare($version1, $version2, $operator = null)
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{
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$versions = [$version1, $version2];
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// pre-processing for version contains hyphen
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foreach ([0, 1] as $offset) {
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if (false !== ($result = self::parseVersionWithHyphen($versions[$offset]))) {
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$versions[$offset] = $result;
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} else {
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$versions[$offset] = ['main' => $versions[$offset], 'sub' => ''];
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}
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}
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if (version_compare($versions[0]['main'], $versions[1]['main'], '=')) {
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$sub1 = $versions[0]['sub'];
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$sub2 = $versions[1]['sub'];
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// v3.2-pr < v3.2
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if ($sub1 != "" || $sub2 != "") {
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// if both of sub-versions are not empty
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if ($sub1 != "" && $sub2 != "") {
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return version_compare($sub1, $sub2, $operator);
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} else {
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$result = version_compare($sub1, $sub2, $operator);
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// reverse the result since version_compare() will determine that "beta" > ""
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return ($operator == "=") ? $result : !$result;
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}
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}
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}
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return version_compare($versions[0]['main'], $versions[1]['main'], $operator);
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}
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public static function parseVersionWithHyphen($version)
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{
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preg_match('/([^-]*)-(.*)/', $version, $matches);
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if (isset($matches[2])) {
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return [
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'main' => $matches[1],
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'sub' => $matches[2]
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];
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}
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return false;
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}
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/**
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* Rename uploaded file
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*
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* @param array $file files uploaded via HTTP POST
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* @return string $hash sha256 hash of file
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*/
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public static function upload($file)
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{
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$path = 'tmp'.time();
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$absolute_path = storage_path("textures/$path");
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try {
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if (false === move_uploaded_file($file['tmp_name'], $absolute_path)) {
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throw new \Exception('Failed to remove uploaded files, please check the permission', 1);
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}
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} catch (\Exception $e) {
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Log::warning("Failed to move uploaded file, $e");
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} finally {
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if (file_exists($absolute_path)) {
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$hash = hash_file('sha256', $absolute_path);
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if (!LaravelStorage::disk('textures')->has($hash)) {
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LaravelStorage::disk('textures')->move($path, $hash);
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} else {
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// delete the temp file
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unlink($absolute_path);
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}
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return $hash;
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} else {
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Log::warning("Failed to upload file $path");
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}
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}
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}
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public static function download($url, $path)
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{
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@set_time_limit(0);
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touch($path);
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Log::info("[File Downloader] Download started, source: $url");
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Log::info("[File Downloader] ======================================");
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if ($fp = fopen($url, "rb")) {
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if (!$download_fp = fopen($path, "wb")) {
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return false;
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}
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while (!feof($fp)) {
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if (!file_exists($path)) {
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// cancel downloading if destination is no longer available
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fclose($download_fp);
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return false;
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}
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Log::info("[Download] 1024 bytes wrote");
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fwrite($download_fp, fread($fp, 1024 * 8 ), 1024 * 8);
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}
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fclose($download_fp);
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fclose($fp);
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Log::info("[File Downloader] Finished downloading, data stored to: $path");
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Log::info("[File Downloader] ===========================================");
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return true;
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} else {
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return false;
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}
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}
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public static function getRemoteFileSize($url)
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{
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$regex = '/^Content-Length: *+\K\d++$/im';
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if (!$fp = @fopen($url, 'rb')) {
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return false;
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}
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if (
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isset($http_response_header) &&
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preg_match($regex, implode("\n", $http_response_header), $matches)
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) {
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return (int)$matches[0];
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}
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return strlen(stream_get_contents($fp));
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}
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/**
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* Generate random string
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*
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* @param int $length
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* @param bool $special_chars
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* @return string
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*/
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public static function generateRndString($length, $special_chars = true)
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{
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$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
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if ($special_chars) $chars .= "!@#$%^&*()-_ []{}<>~`+=,.;:/?|";
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$rnd_string = '';
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for ($i = 0; $i < $length; $i++) {
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$rnd_string .= $chars[mt_rand(0, strlen($chars) - 1)];
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}
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return $rnd_string;
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}
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public static function getTimeFormatted($timestamp = 0)
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{
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return ($timestamp == 0) ? date('Y-m-d H:i:s') : date('Y-m-d H:i:s', $timestamp);
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}
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/**
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* Replace content of string according to given rules
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*
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* @param string $str
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* @param array $rules
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* @return string
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*/
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public static function getStringReplaced($str, $rules)
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{
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foreach ($rules as $search => $replace) {
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$str = str_replace($search, $replace, $str);
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}
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return $str;
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}
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public static function convertUploadFileError($errno = 0)
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{
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$phpFileUploadErrors = [
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0 => 'There is no error, the file uploaded with success',
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1 => 'The uploaded file exceeds the upload_max_filesize directive in php.ini',
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2 => 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form',
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3 => 'The uploaded file was only partially uploaded',
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4 => 'No file was uploaded',
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6 => 'Missing a temporary folder',
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7 => 'Failed to write file to disk.',
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8 => 'A PHP extension stopped the file upload.',
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];
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return $phpFileUploadErrors[$errno];
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}
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}
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