CrashDump.php

<?php
 
/*
 *
 *  ____            _        _   __  __ _                  __  __ ____
 * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
 * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
 * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
 * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * @author PocketMine Team
 * @link http://www.pocketmine.net/
 *
 *
 */
 
declare(strict_types=1);
 
namespace pocketmine\crash;
 
use Composer\InstalledVersions;
use pocketmine\errorhandler\ErrorTypeToStringMap;
use pocketmine\network\mcpe\protocol\ProtocolInfo;
use pocketmine\plugin\PluginBase;
use pocketmine\plugin\PluginManager;
use pocketmine\Server;
use pocketmine\thread\ThreadCrashInfoFrame;
use pocketmine\utils\AssumptionFailedError;
use pocketmine\utils\Filesystem;
use pocketmine\utils\Utils;
use pocketmine\VersionInfo;
use pocketmine\YmlServerProperties;
use Symfony\Component\Filesystem\Path;
use function array_map;
use function base64_encode;
use function error_get_last;
use function file;
use function file_exists;
use function file_get_contents;
use function get_loaded_extensions;
use function json_encode;
use function ksort;
use function max;
use function mb_scrub;
use function mb_strtoupper;
use function microtime;
use function ob_end_clean;
use function ob_get_contents;
use function ob_start;
use function php_uname;
use function phpinfo;
use function phpversion;
use function preg_replace;
use function sprintf;
use function str_split;
use function str_starts_with;
use function strpos;
use function substr;
use function zend_version;
use function zlib_encode;
use const E_COMPILE_ERROR;
use const E_CORE_ERROR;
use const E_ERROR;
use const E_PARSE;
use const E_RECOVERABLE_ERROR;
use const E_USER_ERROR;
use const FILE_IGNORE_NEW_LINES;
use const JSON_THROW_ON_ERROR;
use const JSON_UNESCAPED_SLASHES;
use const PHP_OS;
use const PHP_VERSION;
use const SORT_STRING;
use const ZLIB_ENCODING_DEFLATE;
 
class CrashDump{
 
    private const FORMAT_VERSION = 4;
 
    public const PLUGIN_INVOLVEMENT_NONE = "none";
    public const PLUGIN_INVOLVEMENT_DIRECT = "direct";
    public const PLUGIN_INVOLVEMENT_INDIRECT = "indirect";
 
    public const FATAL_ERROR_MASK =
        E_ERROR | E_PARSE | E_CORE_ERROR | E_COMPILE_ERROR | E_USER_ERROR | E_RECOVERABLE_ERROR;
 
    private CrashDumpData $data;
    private string $encodedData;
 
    public function __construct(
        private Server $server,
        private ?PluginManager $pluginManager
    ){
        $now = microtime(true);
 
        $this->data = new CrashDumpData();
        $this->data->format_version = self::FORMAT_VERSION;
        $this->data->time = $now;
        $this->data->uptime = $now - $this->server->getStartTime();
 
        $this->baseCrash();
        $this->generalData();
        $this->pluginsData();
 
        $this->extraData();
 
        $json = json_encode($this->data, JSON_UNESCAPED_SLASHES | JSON_THROW_ON_ERROR);
        $this->encodedData = Utils::assumeNotFalse(zlib_encode($json, ZLIB_ENCODING_DEFLATE, 9), "ZLIB compression failed");
    }
 
    public function getEncodedData() : string{
        return $this->encodedData;
    }
 
    public function getData() : CrashDumpData{
        return $this->data;
    }
 
    public function encodeData(CrashDumpRenderer $renderer) : void{
        $renderer->addLine();
        $renderer->addLine("----------------------REPORT THE DATA BELOW THIS LINE-----------------------");
        $renderer->addLine();
        $renderer->addLine("===BEGIN CRASH DUMP===");
        foreach(str_split(base64_encode($this->encodedData), 76) as $line){
            $renderer->addLine($line);
        }
        $renderer->addLine("===END CRASH DUMP===");
    }
 
    private function pluginsData() : void{
        if($this->pluginManager !== null){
            $plugins = $this->pluginManager->getPlugins();
            ksort($plugins, SORT_STRING);
            foreach($plugins as $p){
                $d = $p->getDescription();
                $this->data->plugins[$d->getName()] = new CrashDumpDataPluginEntry(
                    name: $d->getName(),
                    version: $d->getVersion(),
                    authors: $d->getAuthors(),
                    api: $d->getCompatibleApis(),
                    enabled: $p->isEnabled(),
                    depends: $d->getDepend(),
                    softDepends: $d->getSoftDepend(),
                    main: $d->getMain(),
                    load: mb_strtoupper($d->getOrder()->name),
                    website: $d->getWebsite()
                );
            }
        }
    }
 
    private function extraData() : void{
        global $argv;
 
        if($this->server->getConfigGroup()->getPropertyBool(YmlServerProperties::AUTO_REPORT_SEND_SETTINGS, true)){
            $this->data->parameters = (array) $argv;
            if(($serverDotProperties = @file_get_contents(Path::join($this->server->getDataPath(), "server.properties"))) !== false){
                $this->data->serverDotProperties = preg_replace("#^rcon\\.password=(.*)$#m", "rcon.password=******", $serverDotProperties) ?? throw new AssumptionFailedError("Pattern is valid");
            }
            if(($pocketmineDotYml = @file_get_contents(Path::join($this->server->getDataPath(), "pocketmine.yml"))) !== false){
                $this->data->pocketmineDotYml = $pocketmineDotYml;
            }
        }
        $extensions = [];
        foreach(get_loaded_extensions() as $ext){
            $version = phpversion($ext);
            $extensions[$ext] = $version !== false ? $version : "**UNKNOWN**";
        }
        $this->data->extensions = $extensions;
 
        $this->data->jit_mode = Utils::getOpcacheJitMode();
 
        if($this->server->getConfigGroup()->getPropertyBool(YmlServerProperties::AUTO_REPORT_SEND_PHPINFO, true)){
            ob_start();
            phpinfo();
            $this->data->phpinfo = ob_get_contents(); // @phpstan-ignore-line
            ob_end_clean();
        }
    }
 
    private function baseCrash() : void{
        global $lastExceptionError, $lastError;
 
        if(isset($lastExceptionError)){
            $error = $lastExceptionError;
        }else{
            $error = error_get_last();
            if($error === null || ($error["type"] & self::FATAL_ERROR_MASK) === 0){
                throw new \RuntimeException("Crash error information missing - did something use exit()?");
            }
            $error["trace"] = Utils::printableTrace(Utils::currentTrace(3)); //Skipping CrashDump->baseCrash, CrashDump->construct, Server->crashDump
            $error["fullFile"] = $error["file"];
            $error["file"] = Filesystem::cleanPath($error["file"]);
            try{
                $error["type"] = ErrorTypeToStringMap::get($error["type"]);
            }catch(\InvalidArgumentException $e){
                //pass
            }
            if(($pos = strpos($error["message"], "\n")) !== false){
                $error["message"] = substr($error["message"], 0, $pos);
            }
            $error["thread"] = "Main";
        }
        $error["message"] = mb_scrub($error["message"], 'UTF-8');
 
        if(isset($lastError)){
            $this->data->lastError = $lastError;
            $this->data->lastError["message"] = mb_scrub($this->data->lastError["message"], 'UTF-8');
            $this->data->lastError["trace"] = array_map(array: $lastError["trace"], callback: fn(ThreadCrashInfoFrame $frame) => $frame->getPrintableFrame());
        }
 
        $this->data->error = $error;
        unset($this->data->error["fullFile"]);
        unset($this->data->error["trace"]);
 
        $this->data->plugin_involvement = self::PLUGIN_INVOLVEMENT_NONE;
        if(!$this->determinePluginFromFile($error["fullFile"], true)){ //fatal errors won't leave any stack trace
            foreach($error["trace"] as $frame){
                $frameFile = $frame->getFile();
                if($frameFile === null){
                    continue; //PHP core
                }
                if($this->determinePluginFromFile($frameFile, false)){
                    break;
                }
            }
        }
 
        if($this->server->getConfigGroup()->getPropertyBool(YmlServerProperties::AUTO_REPORT_SEND_CODE, true) && file_exists($error["fullFile"])){
            $file = @file($error["fullFile"], FILE_IGNORE_NEW_LINES);
            if($file !== false){
                for($l = max(0, $error["line"] - 10); $l < $error["line"] + 10 && isset($file[$l]); ++$l){
                    $this->data->code[$l + 1] = $file[$l];
                }
            }
        }
 
        $this->data->trace = array_map(array: $error["trace"], callback: fn(ThreadCrashInfoFrame $frame) => $frame->getPrintableFrame());
        $this->data->thread = $error["thread"];
    }
 
    private function determinePluginFromFile(string $filePath, bool $crashFrame) : bool{
        $frameCleanPath = Filesystem::cleanPath($filePath);
        if(!str_starts_with($frameCleanPath, Filesystem::CLEAN_PATH_SRC_PREFIX)){
            if($crashFrame){
                $this->data->plugin_involvement = self::PLUGIN_INVOLVEMENT_DIRECT;
            }else{
                $this->data->plugin_involvement = self::PLUGIN_INVOLVEMENT_INDIRECT;
            }
 
            if(file_exists($filePath)){
                $reflection = new \ReflectionClass(PluginBase::class);
                $file = $reflection->getProperty("file");
                foreach($this->server->getPluginManager()->getPlugins() as $plugin){
                    $filePath = Filesystem::cleanPath($file->getValue($plugin));
                    if(str_starts_with($frameCleanPath, $filePath)){
                        $this->data->plugin = $plugin->getName();
                        break;
                    }
                }
            }
            return true;
        }
        return false;
    }
 
    private function generalData() : void{
        $composerLibraries = [];
        foreach(InstalledVersions::getInstalledPackages() as $package){
            $composerLibraries[$package] = sprintf(
                "%s@%s",
                InstalledVersions::getPrettyVersion($package) ?? "unknown",
                InstalledVersions::getReference($package) ?? "unknown"
            );
        }
 
        $this->data->general = new CrashDumpDataGeneral(
            name: $this->server->getName(),
            base_version: VersionInfo::BASE_VERSION,
            build: VersionInfo::BUILD_NUMBER(),
            is_dev: VersionInfo::IS_DEVELOPMENT_BUILD,
            protocol: ProtocolInfo::CURRENT_PROTOCOL,
            git: VersionInfo::GIT_HASH(),
            uname: php_uname("a"),
            php: PHP_VERSION,
            zend: zend_version(),
            php_os: PHP_OS,
            os: Utils::getOS(),
            composer_libraries: $composerLibraries,
        );
    }
}