345 lines
14 KiB
C++
345 lines
14 KiB
C++
#include "gamelauncher.h"
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#include "javalocator.h"
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#include <QDir>
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#include <QFile>
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#include <QFileInfo>
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#include <QHash>
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#include <QProcess>
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#include <QtCore/private/qzipreader_p.h>
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namespace {
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#if defined(Q_OS_WIN)
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constexpr QChar kClasspathSeparator = u';';
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#else
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constexpr QChar kClasspathSeparator = u':';
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#endif
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QString libraryPath(const QString &gameDir, const MinecraftLibrary &library)
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{
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return gameDir + QStringLiteral("/libraries/") + library.path;
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}
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QString nativeToken(const QString &path)
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{
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return QDir::toNativeSeparators(path);
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}
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// Подставляет ${...}. Аргументы, в которых после подстановки остались
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// неизвестные плейсхолдеры, вызывающий выбрасывает.
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QString substitute(QString argument, const QHash<QString, QString> &variables)
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{
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for (auto it = variables.cbegin(); it != variables.cend(); ++it)
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argument.replace(QStringLiteral("${") + it.key() + u'}', it.value());
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return argument;
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}
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bool isNativeLibraryFile(const QString &fileName)
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{
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static const QStringList suffixes = {QStringLiteral(".dll"),
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QStringLiteral(".so"),
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QStringLiteral(".dylib"),
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QStringLiteral(".jnilib")};
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for (const QString &suffix : suffixes)
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if (fileName.endsWith(suffix, Qt::CaseInsensitive))
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return true;
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return fileName.contains(QStringLiteral(".so.")); // libfoo.so.1
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}
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} // namespace
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GameLauncher::GameLauncher(QObject *parent)
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: QObject(parent)
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{}
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bool GameLauncher::isRunning() const
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{
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return m_process && m_process->state() != QProcess::NotRunning;
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}
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QStringList GameLauncher::missingFiles(const LaunchOptions &options,
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const MinecraftVersion &version,
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int limit)
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{
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QStringList missing;
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const auto add = [&missing, limit](const QString &path) {
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if (missing.size() < limit)
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missing << QDir::toNativeSeparators(path);
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};
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if (!QDir(options.gameDir).exists())
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return {QDir::toNativeSeparators(options.gameDir)};
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if (!QFile::exists(version.clientJarPath))
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add(version.clientJarPath);
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for (const MinecraftLibrary &library : version.libraries) {
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const QString path = libraryPath(options.gameDir, library);
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if (!QFile::exists(path))
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add(path);
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}
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if (!version.assetIndexId.isEmpty()) {
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const QString index = options.gameDir + QStringLiteral("/assets/indexes/")
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+ version.assetIndexId + QStringLiteral(".json");
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if (!QFile::exists(index))
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add(index);
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else if (!QDir(options.gameDir + QStringLiteral("/assets/objects")).exists())
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add(options.gameDir + QStringLiteral("/assets/objects"));
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}
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return missing;
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}
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QStringList GameLauncher::buildArguments(const LaunchOptions &options,
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const MinecraftVersion &version,
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const QString &nativesDir)
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{
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QStringList classpath;
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for (const MinecraftLibrary &library : version.libraries) {
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if (library.native)
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continue; // натив-библиотеки только распаковываются
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classpath << nativeToken(libraryPath(options.gameDir, library));
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}
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classpath << nativeToken(version.clientJarPath);
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const QString assetsRoot = options.gameDir + QStringLiteral("/assets");
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const bool legacyAssets = version.assetsKind == QLatin1String("legacy")
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|| version.assetsKind == QLatin1String("pre-1.6");
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QHash<QString, QString> variables;
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variables[QStringLiteral("auth_player_name")] = options.playerName;
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variables[QStringLiteral("auth_uuid")] = options.uuid;
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variables[QStringLiteral("auth_access_token")] = options.accessToken;
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variables[QStringLiteral("auth_session")] = QStringLiteral("token:%1:%2")
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.arg(options.accessToken, options.uuid);
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variables[QStringLiteral("auth_xuid")] = QStringLiteral("0");
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variables[QStringLiteral("clientid")] = options.clientToken.isEmpty() ? QStringLiteral("0")
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: options.clientToken;
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variables[QStringLiteral("user_type")] = options.userType;
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variables[QStringLiteral("user_properties")] = QStringLiteral("{}");
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variables[QStringLiteral("version_name")] = version.id;
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variables[QStringLiteral("version_type")] = version.type;
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variables[QStringLiteral("game_directory")] = nativeToken(options.gameDir);
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variables[QStringLiteral("assets_root")] = nativeToken(assetsRoot);
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variables[QStringLiteral("assets_index_name")] = version.assetIndexId;
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variables[QStringLiteral("game_assets")] = nativeToken(
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legacyAssets ? assetsRoot + QStringLiteral("/virtual/legacy") : assetsRoot);
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variables[QStringLiteral("natives_directory")] = nativeToken(nativesDir);
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variables[QStringLiteral("library_directory")] = nativeToken(options.gameDir
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+ QStringLiteral("/libraries"));
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variables[QStringLiteral("classpath")] = classpath.join(kClasspathSeparator);
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variables[QStringLiteral("classpath_separator")] = QString(kClasspathSeparator);
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variables[QStringLiteral("primary_jar")] = nativeToken(version.clientJarPath);
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variables[QStringLiteral("launcher_name")] = options.launcherName;
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variables[QStringLiteral("launcher_version")] = options.launcherVersion;
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variables[QStringLiteral("resolution_width")] = QString::number(options.windowWidth);
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variables[QStringLiteral("resolution_height")] = QString::number(options.windowHeight);
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QStringList arguments;
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// Свои jvm-аргументы идут первыми — как в строке запуска из примера.
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if (!options.authlibInjectorPath.isEmpty()) {
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arguments << QStringLiteral("-javaagent:%1=%2")
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.arg(nativeToken(options.authlibInjectorPath), options.authlibInjectorApi)
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<< QStringLiteral("-Dauthlibinjector.side=client");
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}
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if (options.minMemoryMb > 0)
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arguments << QStringLiteral("-Xms%1M").arg(options.minMemoryMb);
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if (options.maxMemoryMb > 0)
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arguments << QStringLiteral("-Xmx%1M").arg(options.maxMemoryMb);
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arguments += options.extraJvmArgs;
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for (const QString &argument : version.jvmArgs) {
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const QString resolved = substitute(argument, variables);
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if (!resolved.contains(QStringLiteral("${")))
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arguments << resolved;
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}
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if (!version.loggingArgument.isEmpty() && QFile::exists(version.loggingConfigPath)) {
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QHash<QString, QString> loggingVariable;
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loggingVariable[QStringLiteral("path")] = nativeToken(version.loggingConfigPath);
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arguments << substitute(version.loggingArgument, loggingVariable);
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}
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arguments << version.mainClass;
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for (const QString &argument : version.gameArgs) {
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const QString resolved = substitute(argument, variables);
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if (!resolved.contains(QStringLiteral("${")))
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arguments << resolved;
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}
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// Разрешение окна: у старых версий фич-флага нет, аргументы всё равно понимаются.
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if (options.windowWidth > 0 && options.windowHeight > 0 && !version.hasCustomResolutionArgs
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&& !arguments.contains(QStringLiteral("--width"))) {
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arguments << QStringLiteral("--width") << QString::number(options.windowWidth)
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<< QStringLiteral("--height") << QString::number(options.windowHeight);
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}
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if (options.fullscreen && !arguments.contains(QStringLiteral("--fullscreen")))
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arguments << QStringLiteral("--fullscreen");
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if (!options.serverAddress.isEmpty()) {
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if (version.supportsQuickPlay) {
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arguments << QStringLiteral("--quickPlayMultiplayer") << options.serverAddress;
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} else {
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const int colon = options.serverAddress.lastIndexOf(u':');
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const QString host = colon > 0 ? options.serverAddress.left(colon)
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: options.serverAddress;
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const QString port = colon > 0 ? options.serverAddress.mid(colon + 1)
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: QStringLiteral("25565");
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arguments << QStringLiteral("--server") << host << QStringLiteral("--port") << port;
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}
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}
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return arguments;
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}
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bool GameLauncher::extractNatives(const LaunchOptions &options,
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const MinecraftVersion &version,
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const QString &nativesDir,
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QString *error)
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{
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if (!QDir().mkpath(nativesDir)) {
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if (error)
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*error = tr("Не удалось создать папку %1").arg(QDir::toNativeSeparators(nativesDir));
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return false;
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}
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for (const MinecraftLibrary &library : version.libraries) {
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if (!library.native)
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continue;
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const QString jar = libraryPath(options.gameDir, library);
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QZipReader reader(jar);
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if (!reader.isReadable()) {
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if (error)
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*error = tr("Не удалось прочитать натив-библиотеку %1")
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.arg(QDir::toNativeSeparators(jar));
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return false;
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}
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const QList<QZipReader::FileInfo> entries = reader.fileInfoList();
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for (const QZipReader::FileInfo &entry : entries) {
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if (!entry.isFile)
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continue;
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if (entry.filePath.startsWith(QStringLiteral("META-INF/")))
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continue;
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bool excluded = false;
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for (const QString &prefix : library.extractExclude) {
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if (entry.filePath.startsWith(prefix)) {
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excluded = true;
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break;
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}
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}
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if (excluded)
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continue;
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// java.library.path ищет библиотеки только в корне папки, поэтому
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// складываем их плоско, без структуры каталогов внутри jar.
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const QString fileName = QFileInfo(entry.filePath).fileName();
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if (!isNativeLibraryFile(fileName))
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continue;
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const QString target = nativesDir + u'/' + fileName;
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const QByteArray data = reader.fileData(entry.filePath);
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if (QFileInfo(target).size() == data.size() && QFile::exists(target))
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continue; // уже распаковано этим же лаунчером
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QFile file(target);
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if (!file.open(QIODevice::WriteOnly) || file.write(data) != data.size()) {
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if (error)
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*error = tr("Не удалось распаковать %1 в %2")
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.arg(fileName, QDir::toNativeSeparators(nativesDir));
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return false;
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}
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}
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}
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return true;
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}
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bool GameLauncher::launch(const LaunchOptions &options,
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const MinecraftVersion &version,
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QString *error)
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{
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if (isRunning()) {
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if (error)
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*error = tr("Игра уже запущена");
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return false;
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}
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emit progress(tr("Проверка файлов игры…"));
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const QStringList missing = missingFiles(options, version);
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if (!missing.isEmpty()) {
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if (error)
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*error = tr("В .minecraft не хватает файлов (%1):\n%2")
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.arg(missing.size())
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.arg(missing.join(u'\n'));
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return false;
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}
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emit progress(tr("Распаковка нативных библиотек…"));
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const QString nativesDir = options.gameDir + QStringLiteral("/versions/") + version.id
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+ QStringLiteral("/natives");
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if (!extractNatives(options, version, nativesDir, error))
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return false;
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emit progress(tr("Поиск Java %1…").arg(version.javaMajor));
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const QString java = JavaLocator::select(options.gameDir,
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version.javaMajor,
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options.javaPath,
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error);
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if (java.isEmpty())
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return false;
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const QStringList arguments = buildArguments(options, version, nativesDir);
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const QString executable = JavaLocator::windowlessVariant(java);
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m_process = new QProcess(this);
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m_process->setProgram(executable);
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m_process->setArguments(arguments);
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m_process->setWorkingDirectory(options.gameDir);
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m_process->setProcessChannelMode(QProcess::MergedChannels);
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connect(m_process, &QProcess::readyReadStandardOutput, this, [this]() {
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const QString chunk = QString::fromLocal8Bit(m_process->readAllStandardOutput());
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const QStringList lines = chunk.split(u'\n', Qt::SkipEmptyParts);
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for (const QString &line : lines)
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emit output(line.trimmed());
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});
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connect(m_process, &QProcess::finished, this, [this](int exitCode, QProcess::ExitStatus status) {
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emit gameFinished(exitCode, status == QProcess::CrashExit);
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m_process->deleteLater();
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m_process = nullptr;
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});
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// Токен в лог не попадает — маскируем его в отображаемой строке запуска.
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QStringList shown = arguments;
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const int tokenIndex = shown.indexOf(QStringLiteral("--accessToken"));
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if (tokenIndex >= 0 && tokenIndex + 1 < shown.size())
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shown[tokenIndex + 1] = QStringLiteral("<скрыт>");
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m_process->start();
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if (!m_process->waitForStarted(15000)) {
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if (error)
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*error = tr("Не удалось запустить %1: %2")
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.arg(QDir::toNativeSeparators(executable), m_process->errorString());
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m_process->deleteLater();
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m_process = nullptr;
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return false;
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}
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emit gameStarted(QDir::toNativeSeparators(executable) + QStringLiteral(" ")
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+ shown.join(QStringLiteral(" ")));
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return true;
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}
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void GameLauncher::terminate()
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{
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if (isRunning())
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m_process->kill();
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}
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